pax_global_header00006660000000000000000000000064132636052450014520gustar00rootroot0000000000000052 comment=4253211af8bedbdba9555f02ee246660a6c13461 alttab-1.3.0/000077500000000000000000000000001326360524500127705ustar00rootroot00000000000000alttab-1.3.0/.gitignore000066400000000000000000000002461326360524500147620ustar00rootroot00000000000000*.o *.swp nohup.out *.log .nfs* */.nfs* src/.deps src/tags config.h *~ *.swo autom4te.cache config.status src/Makefile doc/Makefile Makefile stamp-h1 src/alttab alttab-1.3.0/COPYING000066400000000000000000001045131326360524500140270ustar00rootroot00000000000000 GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The GNU General Public License is a free, copyleft license for software and other kinds of works. 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If the disclaimer of warranty and limitation of liability provided above cannot be given local legal effect according to their terms, reviewing courts shall apply local law that most closely approximates an absolute waiver of all civil liability in connection with the Program, unless a warranty or assumption of liability accompanies a copy of the Program in return for a fee. END OF TERMS AND CONDITIONS How to Apply These Terms to Your New Programs If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms. To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively state the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. Copyright (C) This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . Also add information on how to contact you by electronic and paper mail. If the program does terminal interaction, make it output a short notice like this when it starts in an interactive mode: Copyright (C) This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, your program's commands might be different; for a GUI interface, you would use an "about box". You should also get your employer (if you work as a programmer) or school, if any, to sign a "copyright disclaimer" for the program, if necessary. For more information on this, and how to apply and follow the GNU GPL, see . The GNU General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. But first, please read . alttab-1.3.0/ChangeLog000066400000000000000000000032001326360524500145350ustar00rootroot000000000000002018-04-12 Alexander Kulak version 1.3.0 Desktops (group) support: -d option. Multihead (xrandr) support: -vp, -sc options. More responsive main event loop. Sortlist rewritten as double-linked utlist. MRU sort order follows EWMH active window or FocusIn event. Mouse support. Keys-related options use symbolic keysym names. Incorrect arguments abort execution instead of complain. Trim lists on windows destruction event, avoid leak. No MAXWINDOWS limitation. Use stacking window list if WM supports it. Closes: #35, #45, #46, #47, #48, #49, #50, #51, #52, #53, #54, #56, #57, #58, #59, #60, #61, #62, #63, #64, #65, #66. 2018-02-28 Alexander Kulak version 1.2.0 Ancient WM support (-w 3 option). Test and adapt for many WMs. Disable: other desktops, title, decorations, appearance in taskbar. Get rid of shell name expansions (wordexp.h). Windows focus in Metacity and Xfce. Work in partially EWMH-compatible WM. Centering the switcher via WM hints. Build with musl libc (Alpine Linux). Avoid including "panel" and other auxiliary windows. Closes: #8, #9, #23, #24, #25, #26, #27, #28, #29, #30, #31, #32, #34, #36, #37, #38, #39, #40, #41, #43. 2017-10-22 Alexander Kulak version 1.1.0 Load and cache icons from files. Deafult icon size change to 32x32. Use Xrender for accelerated scaling. Complete verification of command line options. Closes: #7, #10, #11, #12, #13, #15, #17, #18, #19, #20, #21, #22. 2017-04-29 Alexander Kulak version 1.0.3 See git log. 2016-10-15 Alexander Kulak First commit. alttab-1.3.0/INSTALL.md000066400000000000000000000027561326360524500144320ustar00rootroot00000000000000 Binaries -------- * In Debian _sid_, _buster_ or their Ubuntu derivatives, install alttab from the official repository: ``` apt install alttab ``` Also, unofficial deb packages for snapshots and backports are available. Follow setup instructions [there](https://odd.systems/debian/). * In FreeBSD, install [the port](https://www.freshports.org/x11/alttab/): ``` cd /usr/ports/x11/alttab/ && make install clean ``` or add the package: ``` pkg install alttab ``` * In Arch Linux, alttab is available in [AUR](https://aur.archlinux.org/packages/?O=0&K=alttab) (outdated version at Mar 2018). * In Alpine Linux, alttab is in _aports/testing_ repository. Building from source -------------------- 1. Install build dependencies. Basic Xlib, Xft, Xrender, Xrandr, libpng libraries and [uthash macros](http://troydhanson.github.io/uthash/) are required. In Debian or Ubuntu: ``` apt install libx11-dev libxmu-dev libxft-dev libxrender-dev libxrandr-dev libpng-dev uthash-dev ``` Maintainer or packager may also install autotools and ronn: ``` apt install autoconf automake ruby-ronn ``` 2. Download: ``` git clone https://github.com/sagb/alttab.git && cd alttab ``` 3. Maintainer or packager may want to update autotools stuff and refresh documentation with ronn: ``` ./bootstrap.sh ``` 4. 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Also, it's lightweight and depends only on basic X11 libs, conforming to the usage of lightweight WM. # Installation ``` git clone https://github.com/sagb/alttab.git cd alttab ./configure && sudo make install ``` See [INSTALL.md](INSTALL.md) for details and [doc/wm-setup.md](doc/wm-setup.md) for window manager settings. Usually it should run fully functional without any argument: `alttab`. # See also [no-wm](https://github.com/patrickhaller/no-wm): use X11 without a window manager     alttab (C) Alexander Kulak <sa-dev AT rainbow POINT by> 2016-2018 alttab-1.3.0/aclocal.m4000066400000000000000000001462511326360524500146410ustar00rootroot00000000000000# generated automatically by aclocal 1.15.1 -*- Autoconf -*- # Copyright (C) 1996-2017 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY, to the extent permitted by law; without # even the implied warranty of MERCHANTABILITY or FITNESS FOR A # PARTICULAR PURPOSE. m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])]) m4_ifndef([AC_AUTOCONF_VERSION], [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],, [m4_warning([this file was generated for autoconf 2.69. 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Also, it's lightweight and depends only on basic X11 libs, conforming to the usage of lightweight WM. Usage ----- Usually it should run fully functional without any argument. Start alttab after WM, to let it auto-recognize the WM. For examples, add the following to ~/.ratpoisonrc: exec alttab For details about window manager configuration, see doc/wm-setup.md. If there are no WM at all, then start alttab in ~/.xsession or elsewhere. Source ------ Copyright 2017-2018 Alexander Kulak . License: GPLv3 (see COPYING). Repository: https://github.com/sagb/alttab Chat: #alttab on Freenode -- Alexander Kulak Fri, 28 Apr 2017 13:19:28 +0300 alttab-1.3.0/doc/alttab.1000066400000000000000000000215701326360524500150730ustar00rootroot00000000000000.\" generated with Ronn/v0.7.3 .\" http://github.com/rtomayko/ronn/tree/0.7.3 . .TH "ALTTAB" "1" "April 2018" "" "" . .SH "NAME" \fBalttab\fR \- the task switcher . .SH "SYNOPSIS" \fBalttab\fR [\fB\-w\fR \fIN\fR] [\fB\-d\fR \fIN\fR] [\fB\-sc\fR \fIN\fR] [\fB\-mk\fR \fIstr\fR] [\fB\-kk\fR \fIstr\fR] [\fB\-bk\fR \fIstr\fR] [\fB\-mm\fR \fIN\fR] [\fB\-bm\fR \fIN\fR] [\fB\-t\fR \fINxM\fR] [\fB\-i\fR \fINxM\fR] [\fB\-vp\fR \fIstr\fR] [\fB\-p\fR \fIstr\fR] [\fB\-s\fR \fIN\fR] [\fB\-theme\fR \fIname\fR] [\fB\-bg\fR \fIcolor\fR] [\fB\-fg\fR \fIcolor\fR] [\fB\-frame\fR \fIcolor\fR] [\fB\-font\fR \fIname\fR] [\fB\-v\fR|\fB\-vv\fR] . .SH "DESCRIPTION" The task switcher designed for minimalistic window managers or standalone X11 session\. . .P Unlike task switchers integrated in most simple WMs, \fBalttab\fR features visual interface and convenient tactile behaviour, switching windows on releasing Alt key\. . .P Being lightweight and depending only on core X11 libs, it still features customizable look and behaviour\. . .SH "OPTIONS" Most command line options have corresponding X resource, see doc/alttab\.ad for example\. . .TP \fB\-w\fR \fINUMBER\fR resource: alttab\.windowmanager . .br default: autodetect, fallback to \fI3\fR . .IP Control how to obtain window list and set focus\. \fINUMBER\fR must be between 0 and 3: . .IP \fI0\fR: No WM, raw X\. . .IP Set this value manually, as it\'s not autodetected\. Only top\-level viewable children of root window are listed\. Running \fB\-w 0\fR under WM is discouraged: hidden windows or windows on another desktops will not be listed; instead, some strange windows may be included\. . .IP \fI1\fR: EWMH compatible\. . .IP Compatible WM list is in [SEE ALSO] below\. alttab functions in xmonad (EWMH must be allowed, details in doc/wm\-setup\.md), i3, evilwm, xfwm4, metacity, jwm, openbox, fluxbox, icewm, enlightenment, blackbox, aewm, fvwm, sawfish\. The following WMs support EWMH partially but work in \fB\-w 1\fR mode too: dwm (issue #9), matchbox (issue #34), windowmaker (issue #9), xpra (issue #37), cwm (issue #35), ctwm (issue #39), lwm (issue #40), awesome (issue #41)\. . .IP \fI2\fR: Ratpoison\. . .IP Alttab uses ratpoison own remote control capability\. Additionally, alttab registers itself in its "unmanaged list" automatically\. . .IP \fI3\fR: Ancient WM\. . .IP Fallback, worse than \fI0\fR\. Search for application windows at random nodes of window tree (WM is probably reparenting) and select only those with a name, including non\-viewable (WM is probably iconifying)\. May cause lag\. Tested in twm, flwm, wm2\. . .TP \fB\-d\fR \fINUMBER\fR resource: alttab\.desktops . .br default: \fI0\fR . .IP Show windows belonging to desktops (workspaces, groups)\. \fINUMBER\fR must be between 0 and 3: . .IP \fI0\fR: Current desktop\. . .IP This is default, although in non EWMH\-compatible WM, except ratpoison, it\'s effectively the same as \fI1\fR\. . .IP \fI1\fR: All desktops\. . .IP \fI2\fR: All desktops, excluding special (\-1) one\. . .IP In various EWMH WM this desktop may be designed hidden or containing sticky windows\. In i3, it\'s "scratchpad"\. . .IP \fI3\fR: All desktops, excluding current and special\. . .TP \fB\-sc\fR \fINUMBER\fR resource: alttab\.screens . .br default: \fI1\fR . .IP Show windows belonging to xrandr/xinerama screens\. \fINUMBER\fR must be 0 or 1: . .IP \fI0\fR: Current screen\. . .IP As defined according to \fB\-vp\fR \fIpointer\fR or \fB\-vp\fR \fIfocus\fR\. . .IP \fI1\fR: All screens\. . .IP This is default\. . .TP \fB\-mk\fR \fIstr\fR resource: alttab\.modifier\.keysym . .br default: Alt_L . .IP Keysym of main modifier\. String or number accepted\. Suitable examples: Control_L, Super_L\. . .TP \fB\-kk\fR \fIstr\fR resource: alttab\.key\.keysym . .br default: Tab . .IP Keysym of main key\. For example, grave (aka tilde), Escape\. . .TP \fB\-bk\fR \fIstr\fR resource: alttab\.backscroll\.keysym . .br default: any Shift, according to ShiftMask . .IP Keysym of backward scroll key\. . .TP \fB\-mm\fR \fINUM\fR resource: alttab\.modifier\.mask . .IP OBSOLETED, guessed from \-mk instead\. . .TP \fB\-bm\fR \fINUM\fR resource: alttab\.backscroll\.mask . .IP OBSOLETED, guessed from \-bk instead\. . .TP \fB\-t\fR \fINNxMM\fR resource: alttab\.tile\.geometry . .br default: \fI112x128\fR . .IP Size of a single tile (mini\-window)\. If switcher doesn\'t fit the viewport (\fB\-vp\fR), tile may be thinner\. . .TP \fB\-i\fR \fINNxMM\fR resource: alttab\.icon\.geometry . .br default: \fI32x32\fR . .IP Size of icons\. . .TP \fB\-vp\fR \fIstr\fR resource: alttab\.viewport . .br default: \fIfocus\fR . .IP Limit viewport for the switcher\. The switcher always has variable size and position, but tries to never break out of \fB\-vp\fR container, while \fB\-p\fR specifies position relative to this container\. Together these options allow for multi\-monitor support\. Possible values for \fB\-vp\fR: . .IP \fIfocus\fR: in multihead configuration: the monitor which shows largest part of currently focused window\. If this part is shared with other monitors, then the smallest of these monitors is choosen\. In single head configuration: the geometry of default root window\. . .IP \fIpointer\fR: the monitor which has mouse pointer, otherwise the same as \fIfocus\fR\. . .IP The "multihead" above means more than one active XRANDR output\. They are detected at runtime, so hopefully monitors may be attached/detached without restarting alttab\. . .IP \fItotal\fR: the geometry of default root window\. . .IP If you specify this in tiling multihead, then the switcher will be drawn relative to the entire combined screen, crossing monitors\' borders\. . .IP \fIWxH+X+Y\fR: Specific position relative to default root window\. . .IP This allows for static manual bounding if XRANDR detection fails\. Suppose X operates in tiling configuration for two 2560Ñ…1440 monitors, resulting in combined screen of 5120x1440 size\. Then the switcher may be positioned at the center of the right monitor with \-vp 2560x1440+2560+0 \-p center\. . .TP \fB\-p\fR \fIstr\fR resource: alttab\.position . .br default: center . .IP Position of switcher: "center", "none" or specific position relative to upper left corner of viewport, in the form \fI+X+Y\fR\. . .TP \fB\-s\fR \fINUMBER\fR resource: alttab\.icon\.source . .br default: 2 . .IP Source of icons\. \fINUMBER\fR must be between 0 and 3: . .IP \fI0\fR: Use icons from X11 window attributes only\. . .IP \fI1\fR: Load icon from file if not found in window attributes\. . .IP Alttab searches for PNG icons under: . .IP /usr/share/icons . .br /usr/local/share/icons . .br ~/\.icons . .br ~/\.local/share/icons . .IP Directory structure should obey freedesktop standard, but desktop files are ignored, instead file name is expected to be equal to application class\. That is, if alttab doesn\'t recognize an icon for window of class foo, as obtained by \'xprop WM_CLASS\', then just drop a 32x32 icon into /usr/local/share/icons/hicolor/32x32/apps/foo\.png\. . .IP \fI2\fR: Prefer icon from file when it matches requested size better (see \fB\-i\fR option)\. . .IP \fI3\fR: Use icons from files only\. . .TP \fB\-theme\fR \fIname\fR resource: alttab\.theme . .br default: \fIhicolor\fR . .IP Desktop theme for application icons\. Used when \fB\-s\fR is 1, 2 or 3\. . .P The following three options accept color names or \fI#rrggbb\fR\. Special value \fI_rnd_low\fR or \fI_rnd_high\fR produce random color from lower or upper RGB space respectively\. . .TP \fB\-bg\fR \fIcolor\fR resource: alttab\.background . .br default: \fIblack\fR . .IP Tile background color\. . .TP \fB\-fg\fR \fIcolor\fR resource: alttab\.foreground . .br default: \fIgrey\fR . .IP Foreground color\. . .TP \fB\-frame\fR \fIcolor\fR resource: alttab\.framecolor . .br default: \fI#a0abab\fR . .IP Color of frame around selected tile\. . .TP \fB\-font\fR \fIname\fR resource: alttab\.font . .br default: \fIxft:sans\-10\fR . .IP Label font name in format: \fBxft:fontconfig_pattern\fR, like in emacs and rxvt\. See [SEE ALSO] for fontconfig pattern\. It\'s neither GTK font pattern nor legacy XLFD\. . .P Your Xresources database probably already has *background, *foreground or *font wildcard definitions, which alttab will obey\. Precedence order (preferred first): . .P alttab\.font resource, . .br \fB\-font\fR option, . .br wildcard resource like *font in xfd: format\. . .TP \fB\-v\fR, \fB\-vv\fR resource: no . .br default: silent . .IP Verbosity\. . .TP \fB\-h\fR short help . .SH "CAVEATS" Run alttab after WM, or autodetection will fail\. . .SH "AUTHOR" Copyright 2017\-2018 Alexander Kulak \fB\fR\. . .SH "REPORTING BUGS" Please report issues on github \fIhttps://github\.com/sagb/alttab/issues\fR\. . .SH "SEE ALSO" skippy\-xd(1) . .P EWMH compatible WM list \fIhttps://en\.wikipedia\.org/wiki/Extended_Window_Manager_Hints#List_of_window_managers_that_support_Extended_Window_Manager_Hints\fR\. . .P Description of fontconfig pattern \fIhttps://www\.freedesktop\.org/software/fontconfig/fontconfig\-user\.html\fR\. alttab-1.3.0/doc/alttab.1.ronn000066400000000000000000000213041326360524500160410ustar00rootroot00000000000000 alttab(1) -- the task switcher ============================== ## SYNOPSIS `alttab` [`-w` ] [`-d` ] [`-sc` ] [`-mk` ] [`-kk` ] [`-bk` ] [`-mm` ] [`-bm` ] [`-t` ] [`-i` ] [`-vp` ] [`-p` ] [`-s` ] [`-theme` ] [`-bg` ] [`-fg` ] [`-frame` ] [`-font` ] [`-v`|`-vv`] ## DESCRIPTION The task switcher designed for minimalistic window managers or standalone X11 session. Unlike task switchers integrated in most simple WMs, `alttab` features visual interface and convenient tactile behaviour, switching windows on releasing Alt key. Being lightweight and depending only on core X11 libs, it still features customizable look and behaviour. ## OPTIONS Most command line options have corresponding X resource, see doc/alttab.ad for example. * `-w` : resource: alttab.windowmanager default: autodetect, fallback to <3> Control how to obtain window list and set focus. must be between 0 and 3: <0>: No WM, raw X. Set this value manually, as it's not autodetected. Only top-level viewable children of root window are listed. Running **-w 0** under WM is discouraged: hidden windows or windows on another desktops will not be listed; instead, some strange windows may be included. <1>: EWMH compatible. Compatible WM list is in [SEE ALSO] below. alttab functions in xmonad (EWMH must be allowed, details in doc/wm-setup.md), i3, evilwm, xfwm4, metacity, jwm, openbox, fluxbox, icewm, enlightenment, blackbox, aewm, fvwm, sawfish. The following WMs support EWMH partially but work in **-w 1** mode too: dwm (issue #9), matchbox (issue #34), windowmaker (issue #9), xpra (issue #37), cwm (issue #35), ctwm (issue #39), lwm (issue #40), awesome (issue #41). <2>: Ratpoison. Alttab uses ratpoison own remote control capability. Additionally, alttab registers itself in its "unmanaged list" automatically. <3>: Ancient WM. Fallback, worse than <0>. Search for application windows at random nodes of window tree (WM is probably reparenting) and select only those with a name, including non-viewable (WM is probably iconifying). May cause lag. Tested in twm, flwm, wm2. * `-d` : resource: alttab.desktops default: <0> Show windows belonging to desktops (workspaces, groups). must be between 0 and 3: <0>: Current desktop. This is default, although in non EWMH-compatible WM, except ratpoison, it's effectively the same as <1>. <1>: All desktops. <2>: All desktops, excluding special (-1) one. In various EWMH WM this desktop may be designed hidden or containing sticky windows. In i3, it's "scratchpad". <3>: All desktops, excluding current and special. * `-sc` : resource: alttab.screens default: <1> Show windows belonging to xrandr/xinerama screens. must be 0 or 1: <0>: Current screen. As defined according to `-vp` or `-vp` . <1>: All screens. This is default. * `-mk` : resource: alttab.modifier.keysym default: Alt_L Keysym of main modifier. String or number accepted. Suitable examples: Control_L, Super_L. * `-kk` : resource: alttab.key.keysym default: Tab Keysym of main key. For example, grave (aka tilde), Escape. * `-bk` : resource: alttab.backscroll.keysym default: any Shift, according to ShiftMask Keysym of backward scroll key. * `-mm` : resource: alttab.modifier.mask OBSOLETED, guessed from -mk instead. * `-bm` : resource: alttab.backscroll.mask OBSOLETED, guessed from -bk instead. * `-t` : resource: alttab.tile.geometry default: <112x128> Size of a single tile (mini-window). If switcher doesn't fit the viewport (`-vp`), tile may be thinner. * `-i` : resource: alttab.icon.geometry default: <32x32> Size of icons. * `-vp` : resource: alttab.viewport default: Limit viewport for the switcher. The switcher always has variable size and position, but tries to never break out of `-vp` container, while `-p` specifies position relative to this container. Together these options allow for multi-monitor support. Possible values for `-vp`: : in multihead configuration: the monitor which shows largest part of currently focused window. If this part is shared with other monitors, then the smallest of these monitors is choosen. In single head configuration: the geometry of default root window. : the monitor which has mouse pointer, otherwise the same as . The "multihead" above means more than one active XRANDR output. They are detected at runtime, so hopefully monitors may be attached/detached without restarting alttab. : the geometry of default root window. If you specify this in tiling multihead, then the switcher will be drawn relative to the entire combined screen, crossing monitors' borders. : Specific position relative to default root window. This allows for static manual bounding if XRANDR detection fails. Suppose X operates in tiling configuration for two 2560Ñ…1440 monitors, resulting in combined screen of 5120x1440 size. Then the switcher may be positioned at the center of the right monitor with -vp 2560x1440+2560+0 -p center. * `-p` : resource: alttab.position default: center Position of switcher: "center", "none" or specific position relative to upper left corner of viewport, in the form <+X+Y>. * `-s` : resource: alttab.icon.source default: 2 Source of icons. must be between 0 and 3: <0>: Use icons from X11 window attributes only. <1>: Load icon from file if not found in window attributes. Alttab searches for PNG icons under: /usr/share/icons /usr/local/share/icons ~/.icons ~/.local/share/icons Directory structure should obey freedesktop standard, but desktop files are ignored, instead file name is expected to be equal to application class. That is, if alttab doesn't recognize an icon for window of class foo, as obtained by 'xprop WM_CLASS', then just drop a 32x32 icon into /usr/local/share/icons/hicolor/32x32/apps/foo.png. <2>: Prefer icon from file when it matches requested size better (see `-i` option). <3>: Use icons from files only. * `-theme` : resource: alttab.theme default: Desktop theme for application icons. Used when `-s` is 1, 2 or 3. The following three options accept color names or <#rrggbb>. Special value <\_rnd_low> or <\_rnd_high> produce random color from lower or upper RGB space respectively. * `-bg` : resource: alttab.background default: Tile background color. * `-fg` : resource: alttab.foreground default: Foreground color. * `-frame` : resource: alttab.framecolor default: <#a0abab> Color of frame around selected tile. * `-font` : resource: alttab.font default: *xft:sans-10* Label font name in format: `xft:fontconfig_pattern`, like in emacs and rxvt. See [SEE ALSO] for fontconfig pattern. It's neither GTK font pattern nor legacy XLFD. Your Xresources database probably already has \*background, \*foreground or \*font wildcard definitions, which alttab will obey. Precedence order (preferred first): alttab.font resource, `-font` option, wildcard resource like \*font in xfd: format. * `-v`, `-vv`: resource: no default: silent Verbosity. * `-h`: short help ##CAVEATS Run alttab after WM, or autodetection will fail. ##AUTHOR Copyright 2017-2018 Alexander Kulak ``. ##REPORTING BUGS Please [report issues on github](https://github.com/sagb/alttab/issues). ##SEE ALSO skippy-xd(1) [EWMH compatible WM list](https://en.wikipedia.org/wiki/Extended_Window_Manager_Hints#List_of_window_managers_that_support_Extended_Window_Manager_Hints). [Description of fontconfig pattern](https://www.freedesktop.org/software/fontconfig/fontconfig-user.html). alttab-1.3.0/doc/alttab.ad000066400000000000000000000033001326360524500153060ustar00rootroot00000000000000! This is example configuration file for alttab. ! Copy it to /etc/X11/Xresources/alttab or merge with ~/.Xresources ! and uncomment/edit statements according to man alttab(1). ! To reload the configuration, issue: xrdb -merge < this_file ! and then restart alttab. ! Please note: alttab doesn't load resources from app-defaults or .Xdefaults ! but only from properties on the root window (handled by xrdb). ! ! Force using raw X11 interface !alttab.windowmanager: 0 ! Show windows belonging to all desktops !alttab.desktops: 1 ! Include only windows belonging to current screen !alttab.screens: 0 ! Ctrl-Tab instead of Alt-Tab !alttab.modifier.keysym: Control_L ! Ctrl instead of Shift for backscroll !alttab.backscroll.keysym: Control_L ! grave (back apostrophe) instead of Tab !alttab.key.keysym: grave ! Limit the switcher to this rectangle ! instead of default screen size !alttab.viewport: 1280x1024+1280+0 ! Or to the monitor with mouse pointer !alttab.viewport: pointer ! Try to not interfere with WM's window positioning !alttab.position: none ! Or specify the switcher position explicitly !alttab.position: +100+100 ! Big tiles alttab.tile.geometry: 260x300 ! Bigger icons alttab.icon.geometry: 48x48 ! Use icons from X11 window attributes only (no disk operations) !alttab.icon.source: 0 ! Non-standard theme for icons. Warning: any theme other than 'hicolor' ! probably has low number of apps icons. !alttab.theme: Tango ! Grey bg alttab.background: #c9c9c9 ! Red letters alttab.foreground: #600000 ! Random dark frame alttab.framecolor: _rnd_low ! Bigger font !alttab.font: xft:DejaVu Sans Condensed-18 alttab-1.3.0/doc/alttab.svg000066400000000000000000000350061326360524500155310ustar00rootroot00000000000000 image/svg+xml g.winlist[selNdx] struct g.winlist[]: X Window, WM id, name, icon, tile, order, ... icon icon icon name name name tile = X Pixmap frame Window g.sortlist[g.sortNdx]0: win X1: win Y2 ...... alttab-1.3.0/doc/development.md000066400000000000000000000017361326360524500164100ustar00rootroot00000000000000 repository, bug reporting ------------------------- [On github](https://github.com/sagb/alttab). maintainer script ----------------- To rebuild autotools stuff use bootstrap.sh. Also, this script updates man page and README which are maintained as ronn(1) (markdown-like) file. This is not included in makefiles to not require casual user to install ronn. coding ------ Functions return 0 on failure, positive on success. No strict requirements are imposed, but for the time present, the code adheres to the following: * Satisfy `-Wall` compiler option * Use Linux coding style (indent -linux) * Pass Clang Static Analyzer check (scan-build make) without warnings, except of those about uthash internals and obvious false-positives The only global variables are: g, dpy, scr, root, ee\_complain. X error handler doesn't abort on error. 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Disable WM's own Alt-Tab and any other applications which grab Alt-Tab exclusively. Alternatively, let alttab use another shortcut, f.e. Left Ctrl instead of Alt: `alttab -mk Control_L`. 2. Start alttab and check is it usable at all: are windows recognized, does alttab change focus? If no, then try to set `-w` option to the following values: 1, 0, 3. If none works, then please report the issue on github. 3. Autostart alttab _after_ window manager. Tested window managers ---------------------- See [here](https://github.com/sagb/alttab/issues/33) how much alttab enhances each WM. WM/DE | best value for `-w` option | how to release grabbed Alt-Tab | autostart ------------ | --------------------------- | ------------------------------ | --------- no WM | 0 (set manually) | doesn't grab | `alttab &` in ~/.xsession ratpoison | 2 (auto) | doesn't grab | `exec alttab` in ~/.ratpoisonrc xmonad | 1 (with plugin, see below) | see "xmonad" section below | dwm | 1 (auto, partial support) | ? | ? i3 | 1 (auto) | doesn't grab | `exec_always alttab` in ~/.i3/config evilwm | 1 (auto) | ? | ? twm | 3 (default) | doesn't grab | ? xfwm4/xfce | 1 (auto) | see "xfce" section below | metacity/MATE| 1 (auto) | see "MATE" section below | jwm | 1 (auto) | comment A-Tab entry in .jwmrc | see "jwm" section below openbox | 1 (auto) | see "openbox" section below | fluxbox | 1 (auto) | see "fluxbox" section below | `alttab &` in ~/.fluxbox/startup icewm | 1 (auto) | ? | ? matchbox | 1 (auto, partial support) | doesn't grab | ? enlightenment| 1 (auto) | ? | ? blackbox | 1 (auto) | doesn't grab | ? window maker | 1 (auto, partial support) | doesn't grab | ? flwm | 3 (default) | ? | ? xpra (non-wm)| 1 (auto, partial support) | doesn't grab | ? cwm | 1 (auto) (issue #35) | ? | ? wm2 | 3 (default) | doesn't grab | ? aewm | 1 (auto) | doesn't grab | ? afterstep | 3 (manually, issue #38) | doesn't grab | ? fvwm | 1 (auto) | ? | ? ctwm | 1 (auto, see issue #39) | doesn't grab | ? lwm | 1 (auto, issue #40) | doesn't grab | ? sawfish | 1 (auto) | doesn't grab | ? awesome | 1 (auto) | doesn't grab | ? xmonad ====== ### keyboard shortcut Xmonad is hungry for *Alt* key. [Disable keybindings](http://xmonad.org/xmonad-docs/xmonad-contrib/XMonad-Doc-Extending.html#g:11) `(modMask,xK_Tab)` and `(modMask.|.shiftMask,xK_Tab)` or [rebind modifier](https://wiki.haskell.org/Xmonad/Frequently_asked_questions#Rebinding_the_mod_key_.28Alt_conflicts_with_other_apps.3B_I_want_the_key.21.29) (neither method is tested, please report). ### inter-process communication For setting window focus, [EWMH extension](http://xmonad.org/xmonad-docs/xmonad-contrib/XMonad-Hooks-EwmhDesktops.html) in xmonad is required (libghc-xmonad-contrib-dev), or xmonad will insist on its own focus (`alttab -w 0` will not work). Also, there is no sane way to detect xmonad reliably without EWMH. ### startup Use `startupHook` in xmonad.hs. xfce ==== ### keyboard shortcut Applications -> Settings -> Settings Editor (not Manager) -> Channel: xfce4-keyboard-shortcuts -> in rigth pane disable all entries of `cycle_windows_key` or `cycle_reverse_windows_key`. ### startup Applications -> Settings -> Session and Startup -> Application Autostart -> Add MATE ==== ### keyboard shortcut System -> Preferences -> Hardware -> Keyboard Shortcuts -> disable Alt-Tab entries ### startup System -> Control Center -> Startup Applications -> Add jwm === Edit `/etc/jwm/system.jwmrc` or `~/.jwmrc`: ### keyboard shortcut Comment A-Tab entry. ### startup Add/edit: ...something else... alttab & Also, "nomove" option may be added to the alttab group in .jwmrc to prevent moving of alttab window (issue #31). openbox ======= ### keyboard shortcut Disable `A-Tab` and `A-S-Tab` keybinds in `/etc/xdg/openbox/rc.xml` ### startup Add `alltab &` to `/etc/xdg/openbox/autostart` fluxbox ======= ### keyboard shortcut Disable/comment built-in non-GUI Alt-Tab in /etc/X11/fluxbox/keys or ~/.fluxbox/keys: #Mod1 Tab :NextWindow {groups} (workspace=[current]) #Mod1 Shift Tab :PrevWindow {groups} (workspace=[current]) ### startup In ~/.fluxbox/startup: ...other apps... alttab & exec fluxbox alttab-1.3.0/install-sh000077500000000000000000000341371326360524500150040ustar00rootroot00000000000000#!/bin/sh # install - install a program, script, or datafile scriptversion=2011-11-20.07; # UTC # This originates from X11R5 (mit/util/scripts/install.sh), which was # later released in X11R6 (xc/config/util/install.sh) with the # following copyright and license. # # Copyright (C) 1994 X Consortium # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files (the "Software"), to # deal in the Software without restriction, including without limitation the # rights to use, copy, modify, merge, publish, distribute, sublicense, and/or # sell copies of the Software, and to permit persons to whom the Software is # furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included in # all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 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Copyright 2017-2018 Alexander Kulak. This file is part of alttab program. alttab is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. alttab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with alttab. If not, see . */ #include #include #include #include #include #include #include #include #include "alttab.h" #include "util.h" #include "config.h" // PUBLIC Globals g; // globals common for alttab, util and icon Display* dpy; int scr; Window root; // PRIVATE // // help and exit // void helpexit() { msg(-1, "the task switcher, v%s\n\ Options:\n\ -w N window manager: 0=no, 1=ewmh-compatible, 2=ratpoison, 3=old fashion\n\ -d N desktop: 0=current 1=all, 2=all but special, 3=all but current\n\ -sc N screen: 0=current 1=all\n\ -kk str keysym of main key\n\ -mk str keysym of main modifier\n\ -bk str keysym of backscroll modifier\n\ -mm N (obsoleted) main modifier mask\n\ -bm N (obsoleted) backward scroll modifier mask\n\ -t NxM tile geometry\n\ -i NxM icon geometry\n\ -vp str switcher viewport: focus, pointer, total, WxH+X+Y\n\ -p str switcher position: center, none, +X+Y\n\ -s N icon source: 0=X11 only, 1=fallback to files, 2=best size, 3=files only\n\ -theme name icon theme\n\ -bg color background color\n\ -fg color foreground color\n\ -frame color active frame color\n\ -font name font name in the form xft:fontconfig_pattern\n\ -v|-vv verbose\n\ -h help\n\ See man alttab for details.\n", PACKAGE_VERSION); exit(0); } // // initialize globals based on executable agruments and Xresources // return 1 if success, 0 otherwise // on fatal failure, calls die/exit // int use_args_and_xrm(int *argc, char **argv) { // set debug level early g.debug = 0; XrmDatabase db; char *errmsg; int ksi; KeyCode BC; unsigned int wmindex, dsindex, scindex, isrc; char *gtile, *gicon, *gview, *gpos; int x, y; unsigned int w, h; int xpg; char *s; char *rm; char *empty = ""; int uo; Atom nwm_prop, atype; unsigned char *nwm; int form; unsigned long remain, len; XrmOptionDescRec xrmTable[] = { {"-w", "*windowmanager", XrmoptionSepArg, NULL} , {"-d", "*desktops", XrmoptionSepArg, NULL} , {"-sc", "*screens", XrmoptionSepArg, NULL} , {"-mm", "*modifier.mask", XrmoptionSepArg, NULL} , {"-bm", "*backscroll.mask", XrmoptionSepArg, NULL} , {"-mk", "*modifier.keysym", XrmoptionSepArg, NULL} , {"-kk", "*key.keysym", XrmoptionSepArg, NULL} , {"-bk", "*backscroll.keysym", XrmoptionSepArg, NULL} , {"-t", "*tile.geometry", XrmoptionSepArg, NULL} , {"-i", "*icon.geometry", XrmoptionSepArg, NULL} , {"-vp", "*viewport", XrmoptionSepArg, NULL} , {"-p", "*position", XrmoptionSepArg, NULL} , {"-s", "*icon.source", XrmoptionSepArg, NULL} , {"-theme", "*theme", XrmoptionSepArg, NULL} , {"-bg", "*background", XrmoptionSepArg, NULL} , {"-fg", "*foreground", XrmoptionSepArg, NULL} , {"-frame", "*framecolor", XrmoptionSepArg, NULL} , {"-font", "*font", XrmoptionSepArg, NULL} , }; const char *inv = "invalid %s, use -h for help\n"; const char *rmb = "can't figure out modmask from keycode 0x%x\n"; // not using getopt() because of need for "-v" before Xrm int arg; for (arg = 0; arg < (*argc); arg++) { if ((strcmp(argv[arg], "-v") == 0)) { g.debug = 1; remove_arg(argc, argv, arg); } else if ((strcmp(argv[arg], "-vv") == 0)) { g.debug = 2; remove_arg(argc, argv, arg); } else if ((strcmp(argv[arg], "-h") == 0)) { helpexit(); remove_arg(argc, argv, arg); } } msg(0, "%s\n", PACKAGE_STRING); msg(0, "debug level %d\n", g.debug); XrmInitialize(); rm = XResourceManagerString(dpy); msg(1, "resource manager: \"%s\"\n", rm); if (!rm) { msg(0, "can't get resource manager, using empty db\n"); //return 0; // we can do it //db = XrmGetDatabase (dpy); rm = empty; } db = XrmGetStringDatabase(rm); if (!db) { msg(-1, "can't get resource database\n"); return 0; } XrmParseCommand(&db, xrmTable, sizeof(xrmTable) / sizeof(xrmTable[0]), XRMAPPNAME, argc, argv); if ((*argc) > 1) { g.debug = 1; msg(-1, "unknown options or wrong arguments:"); for (uo = 1; uo < (*argc); uo++) { msg(0, " \"%s\"", argv[uo]); } msg(0, ", use -h for help\n"); exit(1); } switch (xresource_load_int(&db, XRMAPPNAME, "windowmanager", &wmindex)) { case 1: if (wmindex >= WM_MIN && wmindex <= WM_MAX) { g.option_wm = wmindex; goto wmDone; } else { die(inv, "windowmanager argument range"); } break; case 0: msg(0, "no WM index or unknown, guessing\n"); break; case -1: die(inv, "windowmanager argument"); break; } // EWMH? if (ewmh_detectFeatures(&(g.ewmh))) { msg(0, "EWMH-compatible WM detected: %s\n", g.ewmh.wmname); g.option_wm = WM_EWMH; goto wmDone; } // ratpoison? nwm_prop = XInternAtom(dpy, "_NET_WM_NAME", false); if (XGetWindowProperty(dpy, root, nwm_prop, 0, MAXNAMESZ, false, AnyPropertyType, &atype, &form, &len, &remain, &nwm) == Success && nwm) { msg (0, "_NET_WM_NAME root property present: %s\n", nwm); if (strstr((char *)nwm, "ratpoison") != NULL) { g.option_wm = WM_RATPOISON; XFree(nwm); goto wmDone; } XFree(nwm); } msg(0, "unknown WM, using WM_TWM\n"); g.option_wm = WM_TWM; wmDone: msg(0, "WM: %d\n", g.option_wm); switch (xresource_load_int(&db, XRMAPPNAME, "desktops", &dsindex)) { case 1: if (dsindex >= DESK_MIN && dsindex <= DESK_MAX) g.option_desktop = dsindex; else die(inv, "desktops argument range"); break; case 0: g.option_desktop = DESK_DEFAULT; break; case -1: die(inv, "desktops argument"); break; } msg(0, "desktops: %d\n", g.option_desktop); switch (xresource_load_int(&db, XRMAPPNAME, "screens", &scindex)) { case 1: if (scindex >= SCR_MIN && scindex <= SCR_MAX) g.option_screen = scindex; else die(inv, "screens argument range"); break; case 0: g.option_screen = SCR_DEFAULT; break; case -1: die(inv, "screens argument"); break; } msg(0, "screens: %d\n", g.option_screen); #define MC g.option_modCode #define KC g.option_keyCode #define GMM g.option_modMask #define GBM g.option_backMask ksi = ksym_option_to_keycode(&db, XRMAPPNAME, "modifier", &errmsg); if (ksi == -1) die("%s\n", errmsg); MC = ksi != 0 ? ksi : XKeysymToKeycode(dpy, DEFMODKS); ksi = ksym_option_to_keycode(&db, XRMAPPNAME, "key", &errmsg); if (ksi == -1) die("%s\n", errmsg); KC = ksi != 0 ? ksi : XKeysymToKeycode(dpy, DEFKEYKS); switch (xresource_load_int(&db, XRMAPPNAME, "modifier.mask", &(GMM))) { case 1: msg(-1, "Using obsoleted -mm option or modifier.mask resource, see man page for upgrade\n"); break; case 0: GMM = keycode_to_modmask(MC); if (GMM == 0) die (rmb, MC); break; case -1: die(inv, "modifier mask"); break; } switch (xresource_load_int(&db, XRMAPPNAME, "backscroll.mask", &(GBM))) { case 1: msg(-1, "Using obsoleted -bm option or backscroll.mask resource, see man page for upgrade\n"); break; case 0: BC = ksym_option_to_keycode(&db, XRMAPPNAME, "backscroll", &errmsg); if (BC != 0) { GBM = keycode_to_modmask(BC); if (GBM == 0) die(rmb, BC); } else { GBM = DEFBACKMASK; } break; case -1: die(inv, "backscroll mask"); break; } msg(0, "modMask %d, backMask %d, modCode %d, keyCode %d\n", GMM, GBM, MC, KC); g.option_tileW = DEFTILEW; g.option_tileH = DEFTILEH; gtile = xresource_load_string(&db, XRMAPPNAME, "tile.geometry"); if (gtile != NULL) { xpg = XParseGeometry(gtile, &x, &y, &w, &h); if (xpg & WidthValue) g.option_tileW = w; else die(inv, "tile width"); if (xpg & HeightValue) g.option_tileH = h; else die(inv, "tile height"); } g.option_iconW = DEFICONW; g.option_iconH = DEFICONH; gicon = xresource_load_string(&db, XRMAPPNAME, "icon.geometry"); if (gicon) { xpg = XParseGeometry(gicon, &x, &y, &w, &h); if (xpg & WidthValue) g.option_iconW = w; else die(inv, "icon width"); if (xpg & HeightValue) g.option_iconH = h; else die(inv, "icon height"); } msg(0, "%dx%d tile, %dx%d icon\n", g.option_tileW, g.option_tileH, g.option_iconW, g.option_iconH); bzero (&(g.option_vp), sizeof(g.option_vp)); g.option_vp_mode = VP_DEFAULT; gview = xresource_load_string(&db, XRMAPPNAME, "viewport"); if (gview) { if (strncmp(gview, "focus", 6) == 0) { g.option_vp_mode = VP_FOCUS; } else if (strncmp(gview, "pointer", 8) == 0) { g.option_vp_mode = VP_POINTER; } else if (strncmp(gview, "total", 6) == 0) { g.option_vp_mode = VP_TOTAL; } else { g.option_vp_mode = VP_SPECIFIC; xpg = XParseGeometry(gview, &x, &y, &w, &h); if (xpg & (XValue | YValue | WidthValue | HeightValue)) { g.option_vp.w = w; g.option_vp.h = h; g.option_vp.x = x; g.option_vp.y = y; } else { die(inv, "viewport"); } } } msg(0, "viewport: mode %d, %dx%d+%d+%d\n", g.option_vp_mode, g.option_vp.w, g.option_vp.h, g.option_vp.x, g.option_vp.y); g.option_positioning = POS_DEFAULT; g.option_posX = 0; g.option_posY = 0; gpos = xresource_load_string(&db, XRMAPPNAME, "position"); if (gpos) { if (strncmp(gpos, "center", 7) == 0) { g.option_positioning = POS_CENTER; } else if (strncmp(gpos, "none", 5) == 0) { g.option_positioning = POS_NONE; } else { g.option_positioning = POS_SPECIFIC; xpg = XParseGeometry(gpos, &x, &y, &w, &h); if (xpg & (XValue | YValue)) { g.option_posX = x; g.option_posY = y; } else { die(inv, "position"); } } } msg(0, "positioning policy: %d, position: +%d+%d\n", g.option_positioning, g.option_posX, g.option_posY); g.option_iconSrc = ISRC_DEFAULT; switch (xresource_load_int(&db, XRMAPPNAME, "icon.source", &isrc)) { case 1: if (isrc >= ISRC_MIN && isrc <= ISRC_MAX) g.option_iconSrc = isrc; else die("icon source argument must be from %d to %d\n", ISRC_MIN, ISRC_MAX); break; case 0: g.option_iconSrc = ISRC_DEFAULT; break; case -1: die(inv, "icon source"); break; } msg(0, "icon source: %d\n", g.option_iconSrc); s = xresource_load_string(&db, XRMAPPNAME, "theme"); g.option_theme = s ? s : DEFTHEME; msg(0, "icon theme: %s\n", g.option_theme); s = xresource_load_string(&db, XRMAPPNAME, "background"); g.color[COLBG].name = s ? s : DEFCOLBG; s = xresource_load_string(&db, XRMAPPNAME, "foreground"); g.color[COLFG].name = s ? s : DEFCOLFG; s = xresource_load_string(&db, XRMAPPNAME, "framecolor"); g.color[COLFRAME].name = s ? s : DEFCOLFRAME; s = xresource_load_string(&db, XRMAPPNAME, "font"); if (s) { if ((strncmp(s, "xft:", 4) == 0) && (*(s + 4) != '\0')) { g.option_font = s + 4; } else { // resource may indeed be valid but non-xft msg(-1, "invalid font: %s, using default: %s\n", s, DEFFONT); g.option_font = DEFFONT + 4; } } else { g.option_font = DEFFONT + 4; } // max recursion for searching windows // -1 is "everything" // in raw X this returns too much windows, "1" is probably sufficient // no need for an option g.option_max_reclevel = (g.option_wm == WM_NO) ? 1 : -1; return 1; } // // grab Alt-Tab and Alt-Shift-Tab // note: exit() on failure // int grabAllKeys(bool grabUngrab) { g.ignored_modmask = getOffendingModifiersMask(dpy); // or 0 for g.debug char *grabhint = "Error while (un)grabbing key 0x%x with mask 0x%x/0x%x.\nProbably other program already grabbed this combination.\nCheck: xdotool keydown alt+Tab; xdotool key XF86LogGrabInfo; xdotool keyup Tab; sleep 1; xdotool keyup alt\nand then look for active device grabs in /var/log/Xorg.0.log\nOr try Ctrl-Tab instead of Alt-Tab: alttab -mk Control_L\n"; // attempt XF86Ungrab? probably too invasive if (!changeKeygrab (root, grabUngrab, g.option_keyCode, g.option_modMask, g.ignored_modmask)) { die(grabhint, g.option_keyCode, g.option_modMask, g.ignored_modmask); } if (!changeKeygrab (root, grabUngrab, g.option_keyCode, g.option_modMask | g.option_backMask, g.ignored_modmask)) { die(grabhint, g.option_keyCode, g.option_modMask | g.option_backMask, g.ignored_modmask); } return 1; } int main(int argc, char **argv) { XEvent ev; dpy = XOpenDisplay(NULL); if (!dpy) die("can't open display"); scr = DefaultScreen(dpy); root = DefaultRootWindow(dpy); ee_complain = true; //hnd = (XErrorHandler)0; XErrorHandler hnd = XSetErrorHandler (zeroErrorHandler); // for entire program if (hnd) ;; // make -Wunused happy if (!use_args_and_xrm(&argc, argv)) die("use_args_and_xrm failed"); if (!startupWintasks()) die("startupWintasks failed"); if (!startupGUItasks()) die("startupGUItasks failed"); grabAllKeys(true); g.uiShowHasRun = false; struct timespec nanots; nanots.tv_sec = 0; nanots.tv_nsec = 1E7; char keys_pressed[32]; int octet = g.option_modCode / 8; int kmask = 1 << (g.option_modCode - octet * 8); while (true) { memset(&(ev.xkey), 0, sizeof(ev.xkey)); if (g.uiShowHasRun) { // poll: lag and consume cpu, but necessary because of bug #1 and #2 XQueryKeymap(dpy, keys_pressed); if (!(keys_pressed[octet] & kmask)) { // Alt released uiHide(); continue; } if (!XCheckIfEvent(dpy, &ev, *predproc_true, NULL)) { nanosleep(&nanots, NULL); continue; } } else { // event: immediate, when we don't care about Alt release XNextEvent(dpy, &ev); } switch (ev.type) { case KeyPress: msg (1, "Press %lx: %d-%d\n", ev.xkey.window, ev.xkey.state, ev.xkey.keycode); if (! ((ev.xkey.state & g.option_modMask) && ev.xkey.keycode == g.option_keyCode)) { break; } // safety redundance if (!g.uiShowHasRun) { uiShow((ev.xkey.state & g.option_backMask)); } else { if (ev.xkey.state & g.option_backMask) { uiPrevWindow(); } else { uiNextWindow(); } } break; case KeyRelease: msg(1, "Release %lx: %d-%d\n", ev.xkey.window, ev.xkey.state, ev.xkey.keycode); // interested only in "final" release if (! ((ev.xkey.state & g.option_modMask) && ev.xkey.keycode == g.option_modCode && g.uiShowHasRun)) { break; } uiHide(); break; case Expose: if (g.uiShowHasRun) { uiExpose(); } break; case ButtonPress: case ButtonRelease: uiButtonEvent(ev.xbutton); break; case PropertyNotify: winPropChangeEvent(ev.xproperty); break; case DestroyNotify: winDestroyEvent(ev.xdestroywindow); break; case FocusIn: winFocusChangeEvent(ev.xfocus); break; default: msg(1, "Event type %d\n", ev.type); break; } } // this is probably never reached grabAllKeys(false); // not restoring error handler XCloseDisplay(dpy); return 0; } // main alttab-1.3.0/src/alttab.h000066400000000000000000000153231326360524500152030ustar00rootroot00000000000000/* Global includes. Copyright 2017-2018 Alexander Kulak. This file is part of alttab program. alttab is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. alttab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with alttab. If not, see . */ #ifndef ALTTAB_H #define ALTTAB_H #define MAXPATHSZ 8200 #define MAXRPOUT 8200 // as there are no files involved, we can die at any time // BUT? "it is a good idea to free all the pixmaps that your program created before exiting from the program, pixmaps are stored in the server, if they are not freed they could remain allocated after the program exits" #define XWINNAME "alttab" #define XRMAPPNAME XWINNAME #define XCLASSNAME XWINNAME #define MSGPREFIX "alttab: " #define XCLASS "AltTab" #define DEFTILEW 112 #define DEFTILEH 128 #define DEFICONW 32 #define DEFICONH 32 #define DEFTHEME "hicolor" #define FRAME_W 8 //#define DEFFONT "xft:DejaVu Sans Condensed-10" #define DEFFONT "xft:sans-10" #define COLBG 0 #define COLFG 1 #define COLFRAME 2 #define NCOLORS 3 #define DEFCOLBG "black" #define DEFCOLFG "grey" #define DEFCOLFRAME "#a0abab" #define XDEPTH 24 // TODO: get rid of this #define DEFMODMASK Mod1Mask #define DEFBACKMASK ShiftMask #define DEFMODKS XK_Alt_L #define DEFKEYKS XK_Tab #include "icon.h" #ifndef COMTYPES #define COMTYPES typedef struct { int w; int h; int x; int y; } quad; #define MAXNAMESZ 256 #endif typedef struct { Window id; int wm_id; // wm's internal window id, when WM has it (ratpoison) char name[MAXNAMESZ]; int reclevel; Pixmap icon_drawable; // Window or Pixmap Pixmap icon_mask; unsigned int icon_w, icon_h; bool icon_allocated; // we must free icon, because we created it (placeholder or depth conversion) Pixmap tile; // ready to display. w/h are all equal and defined in gui.c // this constant can't be 0, 1, -1, MAXINT, // because WMs set it to these values incoherently #define DESKTOP_UNKNOWN 0xdead unsigned long desktop; } WindowInfo; typedef struct { //char name[MAXNAMESZ]; char *name; XColor xcolor; XftColor xftcolor; //XRenderColor xrendercolor; } Color; typedef struct { char *wmname; bool try_stacking_list_first; bool minus1_desktop_unusable; } EwmhFeatures; // uthash doubly-linked list element typedef struct PermanentWindowInfo { Window id; struct PermanentWindowInfo *next, *prev; } PermanentWindowInfo; /* typedef struct SwitchMoment { Window prev; Window to; struct timeval tv; } SwitchMoment; */ typedef struct { int debug; bool uiShowHasRun; // means: 1. window is ready to Expose, 2. need to call uiHide to free X stuff WindowInfo *winlist; int maxNdx; // number of items in list above int selNdx; // current (selected) item /* auxiliary list for sorting * head = recently focused * display-wide, for all groups/desktops * unlike g.winlist, survives uiHide */ PermanentWindowInfo *sortlist; // option_* are initialized from command line arguments or X resources or defaults int option_max_reclevel; // max reclevel. -1 is "everything" #define WM_MIN 0 #define WM_NO 0 #define WM_EWMH 1 #define WM_RATPOISON 2 #define WM_TWM 3 #define WM_MAX 3 int option_wm; #define DESK_MIN 0 #define DESK_CURRENT 0 #define DESK_ALL 1 #define DESK_NOSPECIAL 2 #define DESK_NOCURRENT 3 #define DESK_MAX 3 #define DESK_DEFAULT DESK_CURRENT int option_desktop; #define SCR_MIN 0 #define SCR_CURRENT 0 #define SCR_ALL 1 #define SCR_MAX 1 #define SCR_DEFAULT SCR_ALL int option_screen; char *option_font; int option_tileW, option_tileH; int option_iconW, option_iconH; #define VP_FOCUS 0 #define VP_POINTER 1 #define VP_TOTAL 2 #define VP_SPECIFIC 3 #define VP_DEFAULT VP_FOCUS int option_vp_mode; quad option_vp; quad vp; bool has_randr; #define POS_CENTER 0 #define POS_NONE 1 #define POS_SPECIFIC 2 #define POS_DEFAULT POS_CENTER int option_positioning; int option_posX, option_posY; #define ISRC_MIN 0 #define ISRC_RAM 0 #define ISRC_FALLBACK 1 #define ISRC_SIZE 2 #define ISRC_FILES 3 #define ISRC_MAX 3 #define ISRC_DEFAULT ISRC_SIZE int option_iconSrc; char *option_theme; unsigned int option_modMask, option_backMask; KeyCode option_modCode, option_keyCode; Color color[NCOLORS]; GC gcDirect, gcReverse, gcFrame; // used in both gui.c and win.c unsigned int ignored_modmask; icon_t *ic; // cache of all icons EwmhFeatures ewmh; // guessed by ewmh_detectFeatures Atom naw; // _NET_ACTIVE_WINDOW // SwitchMoment last; // for detecting false focus events from WM } Globals; // gui int startupGUItasks(); int uiShow(bool direction); void uiExpose(); int uiHide(); int uiNextWindow(); int uiPrevWindow(); int uiSelectWindow(int ndx); void uiButtonEvent(XButtonEvent e); Window getUiwin(); // windows int startupWintasks(); int addIconFromHints (WindowInfo* wi); int addIconFromFiles (WindowInfo* wi); int addWindowInfo(Window win, int reclevel, int wm_id, unsigned long desktop, char *wm_name); int initWinlist(bool direction); void freeWinlist(); int setFocus(int winNdx); int rp_startupWintasks(); int x_initWindowsInfoRecursive(Window win, int reclevel); int rp_initWinlist(); int x_setFocus(int wndx); int rp_setFocus(int winNdx); int execAndReadStdout(char *exe, char *args[], char *buf, int bufsize); int pulloutWindowToTop(int winNdx); void winPropChangeEvent(XPropertyEvent e); void winDestroyEvent(XDestroyWindowEvent e); void winFocusChangeEvent(XFocusChangeEvent e); bool common_skipWindow(Window w, unsigned long current_desktop, unsigned long window_desktop); void x_setCommonPropertiesForAnyWindow(Window win); void addToSortlist(Window w, bool to_head, bool move); /* EWHM */ bool ewmh_detectFeatures(EwmhFeatures *e); Window ewmh_getActiveWindow(); int ewmh_initWinlist(); int ewmh_setFocus(int winNdx, Window fwin); // fwin used if non-zero unsigned long ewmh_getCurrentDesktop(); unsigned long ewmh_getDesktopOfWindow(Window w); bool ewmh_skipWindowInTaskbar(Window w); /* RANDR */ bool randrAvailable(); bool randrGetViewport(quad *res, bool *multihead); /* autil */ void die(const char *format, ...); void msg(int lvl, const char *format, ...); #endif alttab-1.3.0/src/autil.c000066400000000000000000000024631326360524500150460ustar00rootroot00000000000000/* Helper functions specific to alttab. Copyright 2017-2018 Alexander Kulak. This file is part of alttab program. alttab is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. alttab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with alttab. If not, see . */ #include "alttab.h" extern Globals g; //extern Display* dpy; //extern int scr; //extern Window root; // PUBLIC // // diagnostic message // void msg(int lvl, const char *format, ...) { if (g.debug > lvl) { if (lvl == -1) { fprintf(stderr, MSGPREFIX); } va_list ap; va_start(ap, format); vfprintf(stderr, format, ap); va_end(ap); } } // // fatal exit with explanation // void die(const char *format, ...) { va_list ap; fprintf (stderr, MSGPREFIX); va_start(ap, format); vfprintf(stderr, format, ap); va_end(ap); exit(1); } alttab-1.3.0/src/ewmh.c000066400000000000000000000222571326360524500146730ustar00rootroot00000000000000/* Interface with EWMH-compatible window managers. Note: _WIN fallbacks are not part of EWMH or ICCCM, but kept here anyway. Copyright 2017-2018 Alexander Kulak. This file is part of alttab program. alttab is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. alttab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with alttab. If not, see . */ #include #include #include #include #include #include #include #include #include "alttab.h" #include "util.h" extern Globals g; extern Display* dpy; extern int scr; extern Window root; // PRIVATE // // returns ptr to EWMH client list and client_list_size // or NULL // Window *ewmh_get_client_list(unsigned long *client_list_size) { Window *client_list; if (g.ewmh.try_stacking_list_first) { if ((client_list = (Window *) get_x_property(root, XA_WINDOW, "_NET_CLIENT_LIST_STACKING", client_list_size)) != NULL) { msg(1, "ewmh found stacking window list\n"); return client_list; } else { g.ewmh.try_stacking_list_first = false; } } if ((client_list = (Window *) get_x_property(root, XA_WINDOW, "_NET_CLIENT_LIST", client_list_size)) != NULL) return client_list; if ((client_list = (Window *) get_x_property(root, XA_CARDINAL, "_WIN_CLIENT_LIST", client_list_size)) != NULL) return client_list; return 0; } int ewmh_send_wm_evt(Window w, char *atom, unsigned long edata[]) { XEvent evt; long rn_mask = SubstructureRedirectMask | SubstructureNotifyMask; evt.xclient.window = w; evt.xclient.type = ClientMessage; evt.xclient.message_type = XInternAtom(dpy, atom, False); evt.xclient.serial = 0; evt.xclient.send_event = True; evt.xclient.format = 32; //memset (&(evt.xclient.data.l[1]), 0, 4*sizeof(evt.xclient.data.l[1])); int ei; for (ei = 0; ei < 5; ei++) evt.xclient.data.l[ei] = edata[ei]; if (!XSendEvent(dpy, root, False, rn_mask, &evt)) { msg(-1, "can't send %s xevent\n", atom); return 0; } return 1; } int ewmh_switch_desktop(unsigned long desktop) { int evr, elapsed; unsigned long edata[] = {desktop, CurrentTime, 0,0,0}; if (desktop == -1 && g.ewmh.minus1_desktop_unusable) return 0; msg(1, "ewmh switching desktop to %ld\n", desktop); evr = ewmh_send_wm_evt(root, "_NET_CURRENT_DESKTOP", edata); if (evr == 0) return 0; // wait for WM (#45) #define WM_POLL_TIMEOUT 200000 // 200 ms #define WM_POLL_INTERVAL 10000 for (elapsed = 0; elapsed < WM_POLL_TIMEOUT && ewmh_getCurrentDesktop() != desktop; elapsed += WM_POLL_INTERVAL) { msg(1, "usleep %d\n", WM_POLL_INTERVAL); usleep(WM_POLL_INTERVAL); } return evr; } int ewmh_switch_window(unsigned long window) { unsigned long edata[] = {2, CurrentTime, 0,0,0}; msg(1, "ewmh switching window to 0x%lx\n", window); return ewmh_send_wm_evt(window, "_NET_ACTIVE_WINDOW", edata); } // PUBLIC // // initialize EwmhFeatures // return true if usable at all // bool ewmh_detectFeatures(EwmhFeatures *e) { Window *chld_win; char *r; Atom utf8string; char *default_wm_name = "unknown_ewmh_compatible"; unsigned long client_list_size; // This function is used in alttab for detection of EWMH compatibility. // But there are WM (dwm) that support EWMH subset required for alttab // except of _NET_SUPPORTING_WM_CHECK/_WIN_SUPPORTING_WM_CHECK detection. // We detect those WM as EWMH-compatible and return their name // as "unknown_ewmh_compatible". bzero (e, sizeof(EwmhFeatures)); e->try_stacking_list_first = true; // first, detect necessary feature: client list // also, this resets try_stacking_list_first if necessary if (ewmh_get_client_list(&client_list_size) == NULL) { // WM is not usable in EWMH mode return false; } // then, guess/devise WM name chld_win = (Window *) NULL; if (! (chld_win = (Window *) get_x_property(root, XA_WINDOW, "_NET_SUPPORTING_WM_CHECK", NULL))) { if (! (chld_win = (Window *) get_x_property(root, XA_CARDINAL, "_WIN_SUPPORTING_WM_CHECK", NULL))) { e->wmname = default_wm_name; return true; } } r = (char *)NULL; utf8string = XInternAtom(dpy, "UTF8_STRING", False); if (! (r = get_x_property(*chld_win, utf8string, "_NET_WM_NAME", NULL))) { (r = get_x_property(*chld_win, XA_STRING, "_NET_WM_NAME", NULL)); } if (chld_win!=NULL) free(chld_win); e->wmname = (r!=NULL) ? r : default_wm_name; // special workarounds if (strncmp(e->wmname, "CWM", 4) == 0) e->minus1_desktop_unusable = true; return true; } // // active window or 0 // Window ewmh_getActiveWindow() { Window w = (Window) 0; char *awp; unsigned long sz; if ((awp = get_x_property(root, XA_WINDOW, "_NET_ACTIVE_WINDOW", &sz))) { w = *((Window *) awp); free(awp); } else { msg(0, "can't obtain _NET_ACTIVE_WINDOW\n"); } return w; } // // initialize winlist, correcting sortlist // return 1 if ok // int ewmh_initWinlist() { Window *client_list; unsigned long client_list_size; int i; Window aw; char *title; unsigned long current_desktop, window_desktop; current_desktop = ewmh_getCurrentDesktop(); aw = ewmh_getActiveWindow(); if (!aw) { msg(0, "can't obtain _NET_ACTIVE_WINDOW\n"); // continue anyway } if ((client_list = ewmh_get_client_list(&client_list_size)) == NULL) { msg(-1, "can't get client list\n"); return 0; } for (i = 0; i < client_list_size / sizeof(Window); i++) { Window w = client_list[i]; if (ewmh_skipWindowInTaskbar(w)) continue; window_desktop = ewmh_getDesktopOfWindow(w); if (common_skipWindow(w, current_desktop, window_desktop)) continue; // build title char *wmn1 = get_x_property(w, XA_STRING, "WM_NAME", NULL); Atom utf8str = XInternAtom(dpy, "UTF8_STRING", False); char *wmn2 = get_x_property(w, utf8str, "_NET_WM_NAME", NULL); title = wmn2 ? strdup(wmn2) : (wmn1 ? strdup(wmn1) : NULL); free(wmn1); free(wmn2); addWindowInfo(w, 0, 0, window_desktop, title); if (w == aw) { addToSortlist (w, true, true); // pull to head } } // TODO: BUG? sometimes i3 returns previous active window, // which breaks sortlist // no more startNdx, can't output this //msg(1, "ewmh active window: %lu name: %s\n", // aw, (g.winlist ? g.winlist[g.startNdx].name : "null")); return 1; } // // focus window in EWMH WM // fwin used if non-zero, winNdx otherwise // int ewmh_setFocus(int winNdx, Window fwin) { Window win = (fwin != 0) ? fwin : g.winlist[winNdx].id; msg(1, "ewmh_setFocus win 0x%lx\n", win); if (fwin == 0 && g.option_desktop != DESK_CURRENT) { unsigned long wdesk = g.winlist[winNdx].desktop; unsigned long cdesk = ewmh_getCurrentDesktop(); msg(1, "ewmh_setFocus fwin 0x%lx opt %d wdesk %lu cdesk %lu\n", fwin, g.option_desktop, wdesk, cdesk); if (cdesk != wdesk && wdesk != DESKTOP_UNKNOWN) { ewmh_switch_desktop(wdesk); } } ewmh_switch_window(win); XMapRaised(dpy, win); return 1; } // // get current desktop in EWMH WM // unsigned long ewmh_getCurrentDesktop() { unsigned long *cd; unsigned long propsize; cd = (unsigned long*)get_x_property (root, XA_CARDINAL, "_NET_CURRENT_DESKTOP", &propsize); if (!cd) cd = (unsigned long*)get_x_property (root, XA_CARDINAL, "_WIN_WORKSPACE", &propsize); return (cd && (propsize>0)) ? *cd : DESKTOP_UNKNOWN; } // // get desktop of window w in EWMH WM // unsigned long ewmh_getDesktopOfWindow(Window w) { unsigned long *d; unsigned long propsize; d = (unsigned long*)get_x_property (w, XA_CARDINAL, "_NET_WM_DESKTOP", &propsize); if (!d) d = (unsigned long*)get_x_property (w, XA_CARDINAL, "_WIN_WORKSPACE", &propsize); return (d && (propsize>0)) ? *d : DESKTOP_UNKNOWN; } // // does window have _NET_WM_STATE_SKIP_TASKBAR // bool ewmh_skipWindowInTaskbar(Window w) { Atom *state; long unsigned int state_propsize; Atom a_skip_tb; int i; state = (Atom*)get_x_property(w, XA_ATOM, "_NET_WM_STATE", &state_propsize); if (state == NULL || state_propsize == 0) { msg(1, "%lx: no _NET_WM_STATE property\n", w); return false; } a_skip_tb = XInternAtom(dpy, "_NET_WM_STATE_SKIP_TASKBAR", True); for (i = 0; i < state_propsize / sizeof(Atom); i++) { if (state[i] == a_skip_tb) { msg(1, "%lx: _NET_WM_STATE_SKIP_TASKBAR found\n", w); return true; } } return false; } alttab-1.3.0/src/gui.c000066400000000000000000000510341326360524500145120ustar00rootroot00000000000000/* Draw and interface with our switcher window. Copyright 2017-2018 Alexander Kulak. This file is part of alttab program. alttab is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. alttab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with alttab. If not, see . */ #include #include #include #include #include #include #include #include //#include #include "alttab.h" #include "util.h" extern Globals g; extern Display* dpy; extern int scr; extern Window root; // PRIVATE unsigned int tileW, tileH, iconW, iconH; unsigned int visualTileW; int lastPressedTile; quad scrdim; Window uiwin; int uiwinW, uiwinH, uiwinX, uiwinY; Colormap colormap; Visual *visual; //Font fontLabel; // Xft instead XftFont *fontLabel; // // allocates GC // type is: // 0: normal // 1: for bg fill // 2: for drawing frame // GC create_gc(int type) { GC gc; /* handle of newly created GC. */ unsigned long valuemask = 0; /* which values in 'values' to */ /* check when creating the GC. */ XGCValues values; /* initial values for the GC. */ int line_style = LineSolid; int cap_style = CapButt; int join_style = JoinMiter; gc = XCreateGC(dpy, root, valuemask, &values); if (gc < 0) { msg(-1, "can't create GC\n"); return 0; } /* allocate foreground and background colors for this GC. */ switch (type) { case 1: XSetForeground(dpy, gc, g.color[COLBG].xcolor.pixel); XSetBackground(dpy, gc, g.color[COLFG].xcolor.pixel); XSetLineAttributes(dpy, gc, FRAME_W, line_style, cap_style, join_style); break; case 0: XSetForeground(dpy, gc, g.color[COLFG].xcolor.pixel); XSetBackground(dpy, gc, g.color[COLBG].xcolor.pixel); XSetLineAttributes(dpy, gc, 1, line_style, cap_style, join_style); break; case 2: XSetForeground(dpy, gc, g.color[COLFRAME].xcolor.pixel); XSetBackground(dpy, gc, g.color[COLBG].xcolor.pixel); XSetLineAttributes(dpy, gc, FRAME_W, line_style, cap_style, join_style); break; default: msg(-1, "unknown GC type, not setting colors\n"); break; } /* define the fill style for the GC. to be 'solid filling'. */ XSetFillStyle(dpy, gc, FillSolid); return gc; } // // single use helper for function below // void drawFr(GC gc, int f) { int d = XDrawRectangle(dpy, uiwin, gc, f * (tileW + FRAME_W) + (FRAME_W / 2), 0 + (FRAME_W / 2), tileW + FRAME_W, tileH + FRAME_W); if (!d) { msg(-1, "can't draw frame\n"); } } // // draw selected and unselected frames around tiles // void framesRedraw() { int f; for (f = 0; f < g.maxNdx; f++) { if (f == g.selNdx) continue; // skip drawFr(g.gcReverse, f); // thick bg drawFr(g.gcDirect, f); // thin frame } // _after_ unselected draw selected, because they may overlap drawFr(g.gcFrame, g.selNdx); } // // given coordinates relative to our window, // return the tile number or -1 // int pointedTile(int x, int y) { if (x < (FRAME_W / 2) || x > (uiwinW - (FRAME_W / 2)) || y < 0 || y > uiwinH ) return -1; return (x - (FRAME_W / 2)) / visualTileW; } // PUBLIC // // early initialization // called once per execution // mostly initializes g.* // TODO: counterpair for freeing X resources, // even if called once per execution: /* int p; for (p=0; p 0) { msg(0, "got %d windows\n", g.maxNdx); int i; for (i = 0; i < g.maxNdx; i++) { msg(0, "%d: %lx (lvl %d, icon %lu (%dx%d)): %s\n", i, g.winlist[i].id, g.winlist[i].reclevel, g.winlist[i].icon_drawable, g.winlist[i].icon_w, g.winlist[i].icon_h, g.winlist[i].name); } } // have winlist, now back to uiwin stuff // calculate dimensions tileW = g.option_tileW; tileH = g.option_tileH; iconW = g.option_iconW; iconH = g.option_iconH; float rt = 1.0; // for subsequent calculation of width(s), use 'avail_w' // instead of g.vp.w, because they don't match for POS_SPECIFIC int avail_w = g.vp.w; if (g.option_positioning == POS_SPECIFIC) avail_w -= g.option_posX; // tiles may be smaller if they don't fit viewport uiwinW = (tileW + FRAME_W) * g.maxNdx + FRAME_W; if (uiwinW > avail_w) { int frames = FRAME_W * g.maxNdx + FRAME_W; rt = ((float)(avail_w - frames)) / ((float)(tileW * g.maxNdx)); tileW = (float)tileW * rt; tileH = (float)tileH * rt; uiwinW = tileW * g.maxNdx + frames; } // icon may be smaller if it doesn't fit tile if (iconW > tileW) { rt = (float)tileW / (float)iconW; iconW = tileW; iconH = rt * iconH; } if (iconH > tileH) { rt = (float)tileH / (float)iconH; iconH = tileH; iconW = rt * iconW; } uiwinH = tileH + 2 * FRAME_W; if (g.option_positioning == POS_CENTER) { uiwinX = (g.vp.w - uiwinW) / 2 + g.vp.x; uiwinY = (g.vp.h - uiwinH) / 2 + g.vp.y; } else { uiwinX = g.option_posX + g.vp.x; uiwinY = g.option_posY + g.vp.y; } visualTileW = (uiwinW - FRAME_W) / g.maxNdx; if (g.debug > 0) { msg(0, "tile w=%d h=%d\n", tileW, tileH); msg(0, "uiwin %dx%d +%d+%d", uiwinW, uiwinH, uiwinX, uiwinY); if (g.debug > 1) { int nscr, si; Screen *s; nscr = ScreenCount(dpy); msg(0, ", %d screen(s):", nscr); for (si = 0; si < nscr; ++si) { s = ScreenOfDisplay(dpy, si); msg(0, " [%dx%d]", s->width, s->height); } msg(0, ", viewport %dx%d+%d+%d, avail_w %d", g.vp.w, g.vp.h, g.vp.x, g.vp.y, avail_w); } msg(0, "\n"); } // prepare tiles int m; for (m = 0; m < g.maxNdx; m++) { if (!g.winlist) die("no winlist in uiShow. this shouldn't happen, please report."); g.winlist[m].tile = XCreatePixmap(dpy, root, tileW, tileH, XDEPTH); if (!g.winlist[m].tile) die("can't create tile"); int fr = XFillRectangle(dpy, g.winlist[m].tile, g.gcReverse, 0, 0, tileW, tileH); if (!fr) { msg(-1, "can't fill tile\n"); } // place icons if (g.winlist[m].icon_drawable) { if (g.winlist[m].icon_w == iconW && g.winlist[m].icon_h == iconH) { // direct copy msg(1, "%d: copying icon\n", m); // prepare special GC to copy icon, with clip mask if icon_mask present unsigned long ic_valuemask = 0; XGCValues ic_values; GC ic_gc = XCreateGC(dpy, root, ic_valuemask, &ic_values); if (ic_gc < 0) { msg(-1, "can't create GC to draw icon\n"); return 0; } if (g.winlist[m].icon_mask != 0) { XSetClipMask(dpy, ic_gc, g.winlist[m].icon_mask); } int or = XCopyArea(dpy, g.winlist[m].icon_drawable, g.winlist[m].tile, ic_gc, 0, 0, g.winlist[m].icon_w, g.winlist[m].icon_h, // src 0, 0); // dst if (!or) { msg(-1, "can't copy icon to tile\n"); } } else { // scale msg(1, "%d: scaling icon\n", m); int sc = pixmapFit(g.winlist[m].icon_drawable, g.winlist[m].icon_mask, g.winlist[m].tile, g.winlist[m].icon_w, g.winlist[m].icon_h, iconW, iconH); if (!sc) { msg(-1, "can't scale icon to tile\n"); } } } else { // draw placeholder or standalone icons from some WM GC gcL = create_gc(0); // GC for thin line if (!gcL) { msg(-1, "can't create gcL\n"); } else { XSetLineAttributes(dpy, gcL, 1, LineSolid, CapButt, JoinMiter); //XSetForeground (dpy, gcL, pixel); int pr = XDrawRectangle(dpy, g.winlist[m].tile, gcL, 0, 0, iconW, iconH); if (!pr) { msg(-1, "can't draw placeholder\n"); } XFreeGC(dpy, gcL); } } // draw labels if (g.winlist[m].name && fontLabel) { int dr = drawMultiLine(g.winlist[m].tile, fontLabel, &(g.color[COLFG].xftcolor), g.winlist[m].name, 0, (iconH + 5), tileW, (tileH - iconH - 5)); if (dr != 1) { msg(-1, "can't draw label\n"); } } } msg(0, "prepared %d tiles\n", m); if (fontLabel) XftFontClose(dpy, fontLabel); // prepare our window unsigned long valuemask = CWBackPixel | CWBorderPixel | CWOverrideRedirect; XSetWindowAttributes attributes; attributes.background_pixel = g.color[COLBG].xcolor.pixel; attributes.border_pixel = g.color[COLFRAME].xcolor.pixel; attributes.override_redirect = 1; uiwin = XCreateWindow( dpy, root, uiwinX, uiwinY, uiwinW, uiwinH, 0, // border_width CopyFromParent, // depth InputOutput, // class CopyFromParent, // visual valuemask, &attributes); if (uiwin <= 0) die("can't create window"); msg(0, "our window is 0x%lx\n", uiwin); // set properties of our window XStoreName(dpy, uiwin, XWINNAME); XSetClassHint(dpy, uiwin, &class_h); // warning: this overwrites any previous value. // note: x_setCommonPropertiesForAnyWindow does the same thing for any window XSelectInput(dpy, uiwin, ExposureMask | KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask); // set window type so that WM will hopefully not resize it // before mapping: https://specifications.freedesktop.org/wm-spec/1.3/ar01s05.html Atom at = XInternAtom(dpy, "ATOM", True); Atom wt = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False); Atom td = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False); if (at && wt && td) XChangeProperty(dpy, uiwin, wt, at, 32, PropModeReplace, (unsigned char *)(&td), 1); // disable appearance in taskbar Atom st = XInternAtom(dpy, "_NET_WM_STATE", True); Atom sk = XInternAtom(dpy, "_NET_WM_STATE_SKIP_TASKBAR", True); // there is also PAGER if (at && st && sk) XChangeProperty(dpy, uiwin, st, at, 32, PropModeReplace, (unsigned char *)(&sk), 1); // xmonad ignores _NET_WM_WINDOW_TYPE_DIALOG but obeys WM_TRANSIENT_FOR XSetTransientForHint(dpy, uiwin, uiwin); // disable window title and borders. works in xfwm4. #define PROP_MOTIF_WM_HINTS_ELEMENTS 5 #define MWM_HINTS_DECORATIONS (1L << 1) struct { unsigned long flags; unsigned long functions; unsigned long decorations; long inputMode; unsigned long status; } hints = { MWM_HINTS_DECORATIONS, 0, 0, }; Atom ma = XInternAtom(dpy, "_MOTIF_WM_HINTS", False); if (ma) { XChangeProperty(dpy, uiwin, ma, ma, 32, PropModeReplace, (unsigned char *)&hints, PROP_MOTIF_WM_HINTS_ELEMENTS); } XMapWindow(dpy, uiwin); // positioning and size hints. // centering required in JWM. // should really perform centering when // viewport == wm screen. how would we know the latter? long sflags; sflags = USPosition|USSize|PPosition|PSize|PMinSize|PMaxSize|PBaseSize; // gravity: https://tronche.com/gui/x/xlib/window/attributes/gravity.html if (g.option_positioning != POS_NONE) sflags |= PWinGravity; XSizeHints uiwinSizeHints = { sflags, uiwinX, uiwinY, // obsoleted uiwinW, uiwinH, // obsoleted uiwinW, uiwinH, uiwinW, uiwinH, 0, 0, {0,0}, {0,0}, uiwinW, uiwinH, (g.option_positioning == POS_CENTER //&& g.option_vp_mode != VP_SPECIFIC) ? CenterGravity : ForgetGravity }; && g.option_vp_mode != VP_SPECIFIC) ? CenterGravity : StaticGravity }; XSetWMNormalHints(dpy, uiwin, &uiwinSizeHints); return 1; } // // Expose event callback // redraw our window // void uiExpose() { msg(0, "expose ui\n"); // if WM moved uiwin, here is the place // where we first see 'bad' absolute coordinates. // try to correct them. quad uwq; if (get_absolute_coordinates(uiwin, &uwq)) { // debug for #54 msg(1, "attr abs at expose: %dx%d +%d+%d\n", uwq.w, uwq.h, uwq.x, uwq.y); int xdiff = uwq.x - uiwinX; int ydiff = uwq.y - uiwinY; if (abs(xdiff) > FRAME_W / 2 || abs(ydiff) > FRAME_W / 2) { msg(1, "WM moved uiwin too far, trying to correct\n"); XMoveWindow(dpy, uiwin, uiwinX, uiwinY); } if (uwq.w != uiwinW || uwq.h != uiwinH) { // WM resized our window, like // floating_maximum_size in #54. // there is little can be done here, // so just complain. msg(-1, "switcher window resized, expect bugs. Please configure WM to not interfere with alttab window size, for example, disable 'floating_maximum_size' in i3\n"); } } // icons int j; for (j = 0; j < g.maxNdx; j++) { if (g.winlist[j].tile) { msg(1, "copying tile %d to canvas\n", j); //XSync (dpy, false); int r = XCopyArea(dpy, g.winlist[j].tile, uiwin, g.gcDirect, 0, 0, tileW, tileH, // src j * (tileW + FRAME_W) + FRAME_W, FRAME_W); // dst //XSync (dpy, false); msg(1, "XCopyArea returned %d\n", r); } } // frame framesRedraw(); } // // remove ui and switch to chosen window // int uiHide() { // order is important: to set focus in Metacity, // our window must be destroyed first if (uiwin) { msg(0, "destroying our window\n"); XUnmapWindow(dpy, uiwin); XDestroyWindow(dpy, uiwin); uiwin = 0; } if (g.winlist) { msg(0, "changing focus to 0x%lx\n", g.winlist[g.selNdx].id); /* // save the switch moment for detecting // subsequent false focus event from WM gettimeofday(&(g.last.tv), NULL); g.last.prev = g.winlist[g.startNdx].id; g.last.to = g.winlist[g.selNdx].id; */ setFocus(g.selNdx); // before winlist destruction! } msg(0, "destroying tiles\n"); int y; for (y = 0; y < g.maxNdx; y++) { if (g.winlist && g.winlist[y].tile) { XFreePixmap(dpy, g.winlist[y].tile); g.winlist[y].tile = 0; } } if (g.winlist) { freeWinlist(); } g.uiShowHasRun = false; return 1; } // // select next item in g.winlist // int uiNextWindow() { if (!uiwin) return 0; // kb events may trigger it even when no window drawn yet g.selNdx++; if (g.selNdx >= g.maxNdx) g.selNdx = 0; msg(0, "item %d\n", g.selNdx); framesRedraw(); return 1; } // // select previous item in g.winlist // int uiPrevWindow() { if (!uiwin) return 0; // kb events may trigger it even when no window drawn yet g.selNdx--; if (g.selNdx < 0) g.selNdx = g.maxNdx - 1; msg(0, "item %d\n", g.selNdx); framesRedraw(); return 1; } // // select item in g.winlist // int uiSelectWindow(int ndx) { if (!uiwin) return 0; // kb events may trigger it even when no window drawn yet if (ndx < 0 || ndx >= g.maxNdx) { return 0; } g.selNdx = ndx; msg(0, "item %d\n", g.selNdx); framesRedraw(); return 1; } // // mouse press/release handler // void uiButtonEvent(XButtonEvent e) { if (!uiwin) return; if (e.type == ButtonPress) { switch (e.button) { case 1: lastPressedTile = pointedTile (e.x, e.y); if (lastPressedTile != -1) uiSelectWindow (lastPressedTile); break; case 4: uiPrevWindow(); break; case 5: uiNextWindow(); break; } } if (e.type == ButtonRelease && e.button == 1) { if (lastPressedTile != -1 && lastPressedTile == pointedTile (e.x, e.y)) uiHide(); } } // // our window // Window getUiwin() { return uiwin; } alttab-1.3.0/src/icon.c000066400000000000000000000156351326360524500146650ustar00rootroot00000000000000/* Icon object. Copyright 2017-2018 Alexander Kulak. This file is part of alttab program. alttab is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. alttab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with alttab. If not, see . */ #define _GNU_SOURCE #include //#include "util.h" #include "alttab.h" #include "pngd.h" #include "icon.h" extern Globals g; extern Display *dpy; extern int scr; extern Window root; // PUBLIC: // // icon constructor: safe defaults // icon_t *initIcon() { icon_t *ic; ic = (icon_t *) malloc(sizeof(icon_t)); if (ic == NULL) return NULL; ic->app[0] = '\0'; ic->src_path[0] = '\0'; ic->src_w = ic->src_h = 0; ic->drawable = ic->mask = 0; ic->drawable_allocated = false; return ic; } // // icon destructor // void deleteIcon(icon_t * ic) { if (ic->drawable_allocated) { XFreePixmap(dpy, ic->drawable); } free(ic); } // // hash constructor // 1=success // int initIconHash(icon_t ** ihash) { *ihash = NULL; // required by uthash updateIconsFromFile(ihash); return 1; } // // load all icons // (no pixmaps, just path and dimension) // int updateIconsFromFile(icon_t ** ihash) { int hd; char *id2; int id2len; char *icon_dirs[MAXICONDIRS]; int d_c, f_c; FTS *ftsp; FTSENT *p, *chp; icon_t *iiter, *tmp; int fts_options = FTS_COMFOLLOW | FTS_LOGICAL | FTS_NOCHDIR; // XDG_DATA_DIRS ignored const char *icondir[] = { "/usr/share/icons", "/usr/local/share/icons", "~/.icons", "~/.local/share/icons", NULL }; int idndx = 0; int theme_len = strlen(g.option_theme); char* home = getenv("HOME"); for (hd = 0; icondir[hd] != NULL; hd++) { id2len = strlen(icondir[hd]) + 1 + theme_len + 1; if (icondir[hd][0] == '~') { if (home == NULL) continue; id2len += strlen(home); } id2 = malloc(id2len); if (!id2) return 0; if (icondir[hd][0] == '~') snprintf (id2, id2len, "%s%s/%s", home, icondir[hd]+1, g.option_theme); else snprintf (id2, id2len, "%s/%s", icondir[hd], g.option_theme); id2[id2len - 1] = '\0'; icon_dirs[idndx] = id2; idndx++; } icon_dirs[idndx] = NULL; if (g.debug > 1) { for (idndx = 0; icon_dirs[idndx] != NULL; idndx++) msg(1, "icon dir: %s\n", icon_dirs[idndx]); } if ((ftsp = fts_open(icon_dirs, fts_options, NULL)) == NULL) { warn("fts_open"); return 0; } /* Initialize ftsp with as many icon_dirs as possible. */ chp = fts_children(ftsp, 0); if (chp == NULL) { return 0; /* no files to traverse */ } d_c = f_c = 0; while ((p = fts_read(ftsp)) != NULL) { switch (p->fts_info) { case FTS_D: //printf("d %s\n", p->fts_path); d_c++; break; case FTS_F: //msg(1, "f %s\n", p->fts_path); inspectIconFile(p); f_c++; break; default: break; } } fts_close(ftsp); if (g.debug > 0) { msg(0, "icon dirs: %d, files: %d, apps: %d\n", d_c, f_c, HASH_COUNT(*ihash)); if (g.debug > 1) { HASH_ITER(hh, *ihash, iiter, tmp) { msg(1, "app \"%s\" [%s] (%dx%d)\n", iiter->app, iiter->src_path, iiter->src_w, iiter->src_h); } } } return 1; } // updateIconsFromFile // // check if the file has better icon for given app than in g.ic // return 1 if this icon is used, 0 otherwise // int inspectIconFile(FTSENT * pe) { char *point; char *fname; char app[MAXAPPLEN]; int applen; char *xchar; char *dim; int dimlen; char sx[5]; char sy[5]; int ix, iy; icon_t *ic; char *suff; int sfxn; int tl; char *generic_suffixes[] = { "-color", NULL }; // skip non-apps icons if (strcmp(pe->fts_parent->fts_name, "apps") != 0) return 0; // guess app fname = pe->fts_name; point = rindex(fname, '.'); if (point == NULL) return 0; // no extension? if (strcmp(point + 1, "png") != 0) return 0; // going to load png only TODO: mention in doc applen = point - fname > (MAXAPPLEN - 1) ? (MAXAPPLEN - 1) : point - fname; strncpy(app, fname, applen); app[applen] = '\0'; for (tl = 0; app[tl] != '\0'; tl++) app[tl] = tolower(app[tl]); // sort of generalization sfxn = 0; while (generic_suffixes[sfxn] != NULL) { suff = strcasestr(app, generic_suffixes[sfxn]); if (suff != NULL) { *suff = '\0'; } sfxn++; } // guess dimensions dim = pe->fts_parent->fts_parent->fts_name; dimlen = pe->fts_parent->fts_parent->fts_namelen; xchar = index(dim, 'x'); if (xchar == NULL) return 0; // unknown dimensions strncpy(sx, dim, (xchar - dim)); sx[xchar - dim] = '\0'; ix = atoi(sx); strncpy(sy, xchar + 1, dim + dimlen - xchar); sy[dim + dimlen - xchar - 1] = '\0'; iy = atoi(sy); // is app already in hash? HASH_FIND_STR(g.ic, app, ic); if (ic == NULL) { ic = initIcon(); strncpy(ic->app, app, MAXAPPLEN); strncpy(ic->src_path, pe->fts_path, MAXICONPATHLEN); ic->src_w = ix; ic->src_h = iy; HASH_ADD_STR(g.ic, app, ic); } else { // we already have icon with dimensions: ic->src_w, h // new candidate: ix, iy // best value: g.option_iconW, H // should we replace the icon? if (iconMatchBetter(ix, iy, ic->src_w, ic->src_h)) { strncpy(ic->src_path, pe->fts_path, MAXICONPATHLEN); ic->src_w = ix; ic->src_h = iy; } } return 1; } // inspectIconFile // // update drawable // int loadIconContent(icon_t * ic) { if (!ic->drawable_allocated) { ic->drawable = XCreatePixmap(dpy, root, ic->src_w, ic->src_h, XDEPTH); if (ic->drawable == None) { msg(-1, "can't create pixmap for png icon\n"); return 0; } ic->drawable_allocated = true; } if (pngReadToDrawable (ic->src_path, ic->drawable, g.color[COLBG].xcolor.red, g.color[COLBG].xcolor.green, g.color[COLBG].xcolor.blue) == 0) { msg(-1, "can't read png to drawable\n"); return 0; } return 1; } // // search app icon in hash, // return icon or NULL if not found // icon_t *lookupIcon(char *app) { icon_t *ic; char appl[MAXAPPLEN]; int l; for (l = 0; (*(app + l)) != '\0' && l < MAXAPPLEN; l++) appl[l] = tolower(*(app + l)); appl[l] = '\0'; HASH_FIND_STR(g.ic, appl, ic); return ic; } // // check if new width/height better match icon size option // assuming square icons // bool iconMatchBetter(int new_w, int new_h, int old_w, int old_h) { int hasdiff, newdiff; hasdiff = old_h - g.option_iconH; newdiff = new_h - g.option_iconH; return (hasdiff >= 0) ? ( (newdiff < 0) ? false : ( (newdiff < hasdiff) ? true : false ) ) : ( (newdiff >= 0) ? true : ( (newdiff > hasdiff) ? true : false ) ); } alttab-1.3.0/src/icon.h000066400000000000000000000036261326360524500146670ustar00rootroot00000000000000/* icon.c definitions. Copyright 2017-2018 Alexander Kulak. This file is part of alttab program. alttab is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. alttab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with alttab. If not, see . */ #ifndef ICON_H #define ICON_H #include #include #include #include #include #include #include #include #include #include #include #include #define MAXICONDIRS 64 #define MAXAPPLEN 64 #define MAXICONPATHLEN 1024 typedef struct { char app[MAXAPPLEN]; // application name; uthash key char src_path[MAXICONPATHLEN]; // \0 -if not initialized or loaded from X window properties unsigned int src_w, src_h; // width/height of source (not resized) icon Pixmap drawable; // resized (ready to use) Pixmap mask; bool drawable_allocated; // we must free drawable (but not mask), because we created it UT_hash_handle hh; } icon_t; icon_t *initIcon(); void deleteIcon(icon_t * ic); int initIconHash(icon_t ** ihash); int updateIconsFromFile(icon_t ** ihash); // load all icons into hash (no pixmaps, just path and dimension) int inspectIconFile(FTSENT * pe); // check if file pe has better icon than we have in g.ic int loadIconContent(icon_t * ic); // update drawable icon_t *lookupIcon(char *app); // search app icon in hash bool iconMatchBetter(int new_w, int new_h, int old_w, int old_h); #endif alttab-1.3.0/src/pngd.c000066400000000000000000000175741326360524500146710ustar00rootroot00000000000000/* Reading PNG into Drawable. Copyright 2017-2018 Alexander Kulak. This file is part of alttab program. alttab is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. alttab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with alttab. If not, see . */ #include #include "pngd.h" extern Display *dpy; extern int scr; extern Window root; // // read png header // int pngInit(FILE * infile, TImage * img) { png_structp png_ptr; png_infop info_ptr; png_uint_32 width, height; uint8_t sig[8]; if (fread(sig, 1, 8, infile) == 0) return 0; if (!png_check_sig(sig, 8)) return 0; png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); if (!png_ptr) return 0; info_ptr = png_create_info_struct(png_ptr); if (!info_ptr) { png_destroy_read_struct(&png_ptr, NULL, NULL); return 0; } if (setjmp(png_jmpbuf(png_ptr))) { png_destroy_read_struct(&png_ptr, &info_ptr, NULL); return 0; } png_init_io(png_ptr, infile); png_set_sig_bytes(png_ptr, 8); png_read_info(png_ptr, info_ptr); png_get_IHDR(png_ptr, info_ptr, &width, &height, &(img->bit_depth), &(img->color_type), NULL, NULL, NULL); img->width = width; img->height = height; img->png_ptr = png_ptr; img->info_ptr = info_ptr; return 1; } // // read png data // uint8_t *pngLoadData(TImage * img) { double gamma; png_uint_32 i, rowbytes; png_bytepp row_ptrs = NULL; uint8_t *data = NULL; // local static double exponent = 2.2; if (setjmp(png_jmpbuf(img->png_ptr))) { png_destroy_read_struct(&(img->png_ptr), &(img->info_ptr), NULL); return NULL; } if (img->color_type == PNG_COLOR_TYPE_PALETTE) png_set_expand(img->png_ptr); if (img->color_type == PNG_COLOR_TYPE_GRAY && img->bit_depth < 8) png_set_expand(img->png_ptr); if (png_get_valid(img->png_ptr, img->info_ptr, PNG_INFO_tRNS)) png_set_expand(img->png_ptr); if (img->bit_depth == 16) png_set_strip_16(img->png_ptr); if (img->color_type == PNG_COLOR_TYPE_GRAY || img->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) png_set_gray_to_rgb(img->png_ptr); if (png_get_gAMA(img->png_ptr, img->info_ptr, &gamma)) png_set_gamma(img->png_ptr, exponent, gamma); png_read_update_info(img->png_ptr, img->info_ptr); img->rowbytes = rowbytes = png_get_rowbytes(img->png_ptr, img->info_ptr); img->channels = (int)png_get_channels(img->png_ptr, img->info_ptr); if ((data = (uint8_t *) malloc(rowbytes * (img->height))) == NULL) { png_destroy_read_struct(&img->png_ptr, &img->info_ptr, NULL); return NULL; } if ((row_ptrs = (png_bytepp) malloc((img->height) * sizeof(png_bytep))) == NULL) { png_destroy_read_struct(&(img->png_ptr), &(img->info_ptr), NULL); free(data); data = NULL; return NULL; } for (i = 0; i < img->height; ++i) row_ptrs[i] = data + i * rowbytes; png_read_image(img->png_ptr, row_ptrs); free(row_ptrs); row_ptrs = NULL; png_read_end(img->png_ptr, NULL); return data; } int convert_msb(uint32_t in) { int out; for (out = 31; out >= 0; --out) { if (in & 0x80000000L) break; in <<= 1; } return out; } // // combines img onto d // using: intermediate ximage, visual, background // int pngDraw(TImage * img, Drawable d, XImage * ximage, Visual * visual, uint8_t bg_red, uint8_t bg_green, uint8_t bg_blue) { uint8_t *src; char *dest; uint8_t r, g, b, a; uint32_t pixel; int RShift, GShift, BShift; uint32_t RMask, GMask, BMask; uint32_t red, green, blue; int xrowbytes = ximage->bytes_per_line; uint32_t i, row, lastrow = 0; GC gc = DefaultGC(dpy, scr); RMask = visual->red_mask; GMask = visual->green_mask; BMask = visual->blue_mask; RShift = convert_msb(RMask) - 7; GShift = convert_msb(GMask) - 7; BShift = convert_msb(BMask) - 7; for (lastrow = row = 0; row < img->height; ++row) { src = img->data + row * img->rowbytes; dest = ximage->data + row * xrowbytes; if (img->channels == 3) { for (i = img->width; i > 0; --i) { red = *src++; green = *src++; blue = *src++; pixel = (red << RShift) | (green << GShift) | (blue << BShift); *dest++ = (char)((pixel >> 24) & 0xff); *dest++ = (char)((pixel >> 16) & 0xff); *dest++ = (char)((pixel >> 8) & 0xff); *dest++ = (char)(pixel & 0xff); } } else { /* if (channels == 4) */ for (i = img->width; i > 0; --i) { r = *src++; g = *src++; b = *src++; a = *src++; if (a == 255) { red = r; green = g; blue = b; } else if (a == 0) { red = bg_red; green = bg_green; blue = bg_blue; } else { alpha_composite(red, r, a, bg_red); alpha_composite(green, g, a, bg_green); alpha_composite(blue, b, a, bg_blue); } //fprintf (stderr, "r=%d g=%d b=%d a=%d red=%d green=%d blue=%d RShift=%d GShift=%d BShift=%d\n", r, g, b, a, red, green, blue, RShift, GShift, BShift); pixel = (red << RShift) | (green << GShift) | (blue << BShift); *dest++ = (char)((pixel >> 24) & 0xff); *dest++ = (char)((pixel >> 16) & 0xff); *dest++ = (char)((pixel >> 8) & 0xff); *dest++ = (char)(pixel & 0xff); } } if (((row + 1) & 0xf) == 0) { XPutImage(dpy, d, gc, ximage, 0, (int)lastrow, 0, (int)lastrow, img->width, 16); XFlush(dpy); lastrow = row + 1; } } if (lastrow < img->height) { XPutImage(dpy, d, gc, ximage, 0, (int)lastrow, 0, (int)lastrow, img->width, img->height - lastrow); } return 1; } // // draw file on d // int pngReadToDrawable(char *pngpath, Drawable d, uint8_t bg_red, uint8_t bg_green, uint8_t bg_blue) { int debug = 0; FILE *infile; Visual *visual; TImage img; uint8_t *xdata; int pad; XImage *ximage; int depth; img.data = NULL; img.png_ptr = NULL; img.info_ptr = NULL; visual = DefaultVisual(dpy, scr); depth = DisplayPlanes(dpy, scr); if (!(depth == 24 || depth == 32)) { fprintf(stderr, "X11 depth must be 24 or 32, we have %d\n", depth); return 0; } if (!(infile = fopen(pngpath, "rb"))) { fprintf(stderr, "can't open [%s]\n", pngpath); return 0; } if ((pngInit(infile, &img)) != 1) { fprintf(stderr, "error reading png header\n"); return 0; } img.data = pngLoadData(&img); fclose(infile); if (!img.data || img.width == 0 || img.height == 0) { fprintf(stderr, "error loading png data\n"); return 0; } if (debug > 0) fprintf(stderr, "read %dx%d png, %d channels\n", img.width, img.height, img.channels); xdata = (uint8_t *) malloc(4 * img.width * img.height); pad = 32; if (!xdata) { fprintf(stderr, "xdata malloc error\n"); return 0; } ximage = XCreateImage(dpy, visual, depth, ZPixmap, 0, (char *)xdata, img.width, img.height, pad, 0); if (!ximage) { fprintf(stderr, "error creating ximage\n"); free(xdata); return 0; } ximage->byte_order = MSBFirst; return pngDraw(&img, d, ximage, visual, bg_red, bg_green, bg_blue); } // // standalone test for pngReadToDrawable (see test/) // int pngReadToDrawable_test(char *pngfile) { Window p; XEvent e; // define these as globals in caller dpy = XOpenDisplay(NULL); scr = DefaultScreen(dpy); root = RootWindow(dpy, scr); p = XCreateSimpleWindow(dpy, root, 0, 0, 600, 600, 0, WhitePixel(dpy, scr), WhitePixel(dpy, scr)); if (p == None) { fprintf(stderr, "error creating main window\n"); return 0; } XSelectInput(dpy, p, ExposureMask | KeyPressMask | KeyReleaseMask); XMapWindow(dpy, p); do XNextEvent(dpy, &e); while (e.type != Expose || e.xexpose.count); XFlush(dpy); if (pngReadToDrawable(pngfile, p, 255, 255, 255) != 1) { fprintf(stderr, "can't read png to drawadle\n"); return 0; } sleep(2); return 1; } alttab-1.3.0/src/pngd.h000066400000000000000000000032721326360524500146640ustar00rootroot00000000000000/* pngd.c definitions. Copyright 2017-2018 Alexander Kulak. This file is part of alttab program. alttab is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. alttab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with alttab. If not, see . */ #ifndef PNGD_H #define PNGD_H #include #include #include #include #include // PUBLIC #define alpha_composite(composite, fg, alpha, bg) { \ uint16_t shiftarg = ((uint16_t)(fg) * (uint16_t)(alpha) + \ (uint16_t)(bg) * (uint16_t)(255 - (uint16_t)(alpha)) + (uint16_t)128); \ (composite) = (uint8_t)((shiftarg + (shiftarg >> 8)) >> 8); \ } typedef struct { png_structp png_ptr; png_infop info_ptr; png_uint_32 width, height; int bit_depth, color_type, channels; uint32_t rowbytes; uint8_t *data; } TImage; int pngInit(FILE * infile, TImage * img); uint8_t *pngLoadData(TImage * img); int convert_msb(uint32_t in); int pngDraw(TImage * img, Drawable d, XImage * ximage, Visual * visual, uint8_t bg_red, uint8_t bg_green, uint8_t bg_blue); int pngReadToDrawable(char *pngpath, Drawable d, uint8_t bg_red, uint8_t bg_green, uint8_t bg_blue); int pngReadToDrawable_test(); #endif alttab-1.3.0/src/randr.c000066400000000000000000000201741326360524500150350ustar00rootroot00000000000000/* Interface to XRANDR Copyright 2017-2018 Alexander Kulak. This file is part of alttab program. alttab is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. alttab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with alttab. If not, see . */ #include #include #include #include #include #include #include "alttab.h" #include "util.h" extern Globals g; extern Display* dpy; extern int scr; extern Window root; // Documentation: // https://cgit.freedesktop.org/xorg/proto/randrproto/tree/randrproto.txt // version requirements: // RRGetScreenResourcesCurrent (1.3) #define MAJ_REQ 1 #define MIN_REQ 3 // PRIVATE // current output geometry list // we alloc/free them only here // // update outs, return nout or 0 // int randr_update_outputs(Window w, quad **outs) { XRRScreenResources *scr_res; XRROutputInfo *out_info; XRRCrtcInfo *crtc_info; int nout; int out; // as returned by randr; may include inactive scr_res = XRRGetScreenResourcesCurrent (dpy, w); if (scr_res == NULL) return 0; nout = 0; (*outs) = NULL; for (out = 0; out < scr_res->noutput; out++ ) { out_info = XRRGetOutputInfo (dpy, scr_res, scr_res->outputs[out]); if (out_info->connection != RR_Connected) continue; crtc_info = XRRGetCrtcInfo (dpy, scr_res, out_info->crtc); (*outs) = realloc ((*outs), (nout + 1) * sizeof(quad)); if ((*outs) == NULL) return 0; (*outs)[nout].x = crtc_info->x; (*outs)[nout].y = crtc_info->y; (*outs)[nout].w = crtc_info->width; (*outs)[nout].h = crtc_info->height; msg(0, "output %d (%d by randr) crtc: +%d+%d %dx%d noutput %d npossible %d\n", nout, out, crtc_info->x, crtc_info->y, crtc_info->width, crtc_info->height, crtc_info->noutput, crtc_info->npossible); XRRFreeCrtcInfo(crtc_info); XRRFreeOutputInfo (out_info); nout++; } //XRRFreeScreenResources(scr_res); // don't do this for XRRGetScreenResourcesCurrent? return nout; } // // return currently focused window and its geometry, // or focus point (depending on vp_mode). // res and fw must be allocated by caller. // bool x_get_activity_area (quad *res, Window *fw) { #define VPM g.option_vp_mode int rtr; Window root_ret, child_ret; int root_x, root_y, win_x, win_y; unsigned int mask_ret; *fw = 0; if (VPM == VP_FOCUS) { if (XGetInputFocus (dpy, fw, &rtr) == 0 || (*fw) == 0) { msg(-1, "can't recognize focused window\n"); return false; } if (! get_absolute_coordinates(*fw, res)) { msg(-1, "can't get window 0x%lx absolute coordinates\n", (*fw)); return false; } msg(0, "focus in window 0x%lx (%dx%d +%d+%d)\n", (*fw), res->w, res->h, res->x, res->y); return true; } if (VPM == VP_POINTER) { if (! XQueryPointer(dpy, root, &root_ret, &child_ret, &root_x, &root_y, &win_x, &win_y, &mask_ret) ) { // pointer is not on the same screen as root return false; } res->x = win_x; res->y = win_y; res->w = res->h = 1; *fw = root; msg(0, "pointer: +%d+%d\n", res->x, res->y); return true; } // unknown vp_mode return false; } // PUBLIC // // check for randr at runtime // assuming (for now) it's available at build time // bool randrAvailable() { int maj, min; bool ok; Status s = XRRQueryVersion (dpy, &maj, &min); if (s != 0) { ok = ( (maj == MAJ_REQ && min >= MIN_REQ) || (maj > MAJ_REQ) ); } else { ok = false; } if (g.debug > 0) { if (s == 0) msg(0, "randr not available\n"); else msg(0, "randr v. %d.%d available (%ssufficient)\n", maj, min, ok ? "" : "not "); } return ok; } // // return best viewport from randr 'point of view' // of false if not found. // res must be allocated by caller. // bool randrGetViewport(quad *res, bool *multihead) { Window fw = 0; quad aq; // 'activity area': focused window geometry or pointer point quad *oq; // outputs geometries int o, no; int x1, x2, y1, y2, area; quad lq; // largest cross-section at 1st stage int largest_cross_area = 0; // its square int best_1_stage_output = -1; int best_2_stage_output = -1; int smallest_2_stage_area; //no = randr_update_outputs(fw != 0 ? fw : root, &oq); // no fw here no = randr_update_outputs(root, &oq); if (no < 1) { msg(0, "randr didn't detect any output\n"); *multihead = false; if (oq != NULL) free (oq); return false; } if (no == 1) { msg(0, "using single randr output as viewport\n"); *res = oq[0]; *multihead = false; free (oq); return true; } *multihead = true; if (! x_get_activity_area (&aq, &fw)) { msg(0, "failed to detect activity area, using first randr output\n"); *res = oq[0]; free (oq); return true; } for (o = 0; o < no; o++) { if (rectangles_cross (aq, oq[o])) { // this output has a common cross-section with activity area, // now find this cross-section. x1 = aq.x > oq[o].x ? aq.x : oq[o].x; x2 = (aq.x + aq.w) < (oq[o].x + oq[o].w) ? (aq.x + aq.w) :(oq[o].x + oq[o].w); y1 = aq.y > oq[o].y ? aq.y : oq[o].y; y2 = (aq.y + aq.h) < (oq[o].y + oq[o].h) ? (aq.y + aq.h) :(oq[o].y + oq[o].h); area = (x2 - x1) * (y2 - y1); msg(0, "output %d cross-section: %d\n", o, area); if (area > largest_cross_area) { best_1_stage_output = o; lq.x = x1; lq.y = y1; lq.w = x2 - x1; lq.h = y2 - y1; largest_cross_area = area; } /* // disabled feature: // total area of CRTCs which have cross-section with focused window if (oq[o].x < res->x) res->x = oq[o].x; int right_diff = (oq[o].x + oq[o].w) - (res->x + res->w); if (right_diff > 0) res->w += right_diff; if (oq[o].y < res->y) res->y = oq[o].y; int bot_diff = (oq[o].y + oq[o].h) - (res->y + res->h); if (bot_diff > 0) res->h += bot_diff; */ } else { msg(0, "output %d doesn't cross with activity area\n", o); } } // outputs if (best_1_stage_output == -1) { msg(0, "failed to find largest cross-section, using first randr output\n"); *res = oq[0]; free (oq); return true; } // if best cross-area is shared with some other monitor, // then smallest of these monitors is choosen. smallest_2_stage_area = oq[best_1_stage_output].w * oq[best_1_stage_output].h; for (o = 0; o < no; o++) { if (o == best_1_stage_output) continue; if (rectangles_cross (lq, oq[o])) { area = oq[o].w * oq[o].h; if (area < smallest_2_stage_area ) { best_2_stage_output = o; smallest_2_stage_area = area; } } } if (best_2_stage_output == -1) { best_2_stage_output = best_1_stage_output; } else { msg(0, "found better (smallest output) candidate: %d\n", best_2_stage_output); } // the single result here is best_2_stage_output *res = oq[best_2_stage_output]; msg(0, "best viewport from randr: %dx%d +%d+%d\n", res->w, res->h, res->x, res->y); free (oq); return true; } alttab-1.3.0/src/rp.c000066400000000000000000000153731326360524500143550ustar00rootroot00000000000000/* Interface with Ratpoison window manager. Copyright 2017-2018 Alexander Kulak. This file is part of alttab program. alttab is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. alttab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with alttab. If not, see . */ #include #include #include #include #include #include #include #include #include #include "alttab.h" #include "util.h" extern Globals g; // PRIVATE #define RP_MAXGROUPS 64 char *ratpoison_cmd; // // process ratpoison window_group, adding its windows // to winlist/sortlist. // window_group must be selected in advance. // int rp_add_windows_in_group(int current_group, int window_group) { char *args[] = { "ratpoison", "-c", "windows %n %i %s %t", NULL }; char buf[MAXRPOUT]; char *rpse = "bad token while parsing ratpoison output: "; bzero(buf, MAXRPOUT); if (!execAndReadStdout(ratpoison_cmd, args, buf, MAXRPOUT)) { msg(-1, "can't exec ratpoison\n"); return 0; } msg(1, "windows in current rp group:\n%s", buf); char *rest = buf; char *tok; if (strstr(buf, "No managed windows")) { // no windows at all. return 0; } else { while ((tok = strsep(&rest, "\r\n")) && (*tok)) { // parse single line char *rest2 = tok; char *tok2; char *endptr; if (!((tok2 = strsep(&rest2, " \t")) && (*tok2))) die(rpse, rest2); int wm_id = strtol(tok2, &endptr, 10); if (endptr == tok2) die(rpse, tok2); if (!((tok2 = strsep(&rest2, " \t")) && (*tok2))) die(rpse, rest2); int win = strtol(tok2, &endptr, 10); if (endptr == tok2) die(rpse, tok2); if (!((tok2 = strsep(&rest2, " \t")) && (*tok2))) die(rpse, rest2); switch (*tok2) { case '*': // pull to head // g.winlist isn't here yet! addToSortlist (win, true, true); break; case '+': case '-': break; // use? default: break; } if (common_skipWindow(win, current_group, window_group)) return 0; // the rest of string is name addWindowInfo(win, 0, wm_id, window_group, rest2); } } return 1; } // PUBLIC // // early initialization in ratpoison // int rp_startupWintasks() { // search for ratpoison executable for later execv ratpoison_cmd = (char *)malloc(MAXPATHSZ); // we don't free it, hopefully run only once FILE *fp; char *fr; // search in PATH on startup only, // then execv() for speed if ((fp = popen("which ratpoison", "r"))) { fr = fgets(ratpoison_cmd, MAXPATHSZ, fp); if (fr == NULL) { msg(-1, "can't find ratpoison executable\n"); return 0; } pclose(fp); } if (strlen(ratpoison_cmd) < 2) { msg(-1, "can't find ratpoison executable\n"); return 0; } else { ratpoison_cmd[strcspn(ratpoison_cmd, "\r\n")] = 0; msg(0, "ratpoison: %s\n", ratpoison_cmd); } // insert myself in "unmanaged windows" list // this is not required, as soon as ratpoison obeys DIALOG window type, // but without "unmanage" it draws ugly additional frame around our window. char *ua[] = { "ratpoison", "-c", "unmanage", NULL }; char *uains[] = { "ratpoison", "-c", "unmanage " XWINNAME, NULL }; char buf[MAXRPOUT]; memset(buf, '\0', MAXRPOUT); if (!execAndReadStdout(ratpoison_cmd, ua, buf, MAXRPOUT)) { msg(-1, "can't get unmanaged window list from ratpoison\n"); return 1; // not fatal } msg(1, "ratpoison reports unmanaged:\n%s", buf); if (!strstr(buf, XWINNAME)) { msg(0, "registering in ratpoison unmanaged list\n"); //memset (buf, '\0', MAXRPOUT); if (!execAndReadStdout(ratpoison_cmd, uains, buf, MAXRPOUT)) { msg(-1, "can't register in ratpoison unmanaged window list\n"); return 1; // not fatal } } else { msg(0, "our window is already in ratpoison unmanaged list\n"); } return 1; } // // initialize winlist/update sortlist from ratpoison output // int rp_initWinlist() { #define fallback { msg(-1, "using current rp group\n") ; \ return rp_add_windows_in_group(DESKTOP_UNKNOWN, DESKTOP_UNKNOWN); } #define arg2len 19 #define intlen 10 char arg2[arg2len]; // fits 'groups', 'gselect N' char *args[] = { "ratpoison", "-c", arg2, NULL }; char buf[MAXRPOUT]; int gr[RP_MAXGROUPS]; int ngr, gri; // numbers from 'groups' output int w_group; // window group int c_group = DESKTOP_UNKNOWN; // current group char *endptr; char *rest; char *tok; g.maxNdx = 0; if (g.option_desktop == DESK_CURRENT) return rp_add_windows_in_group(DESKTOP_UNKNOWN, DESKTOP_UNKNOWN); // discover rp groups strncpy (arg2, "groups", arg2len); bzero(buf, MAXRPOUT); if (!execAndReadStdout(ratpoison_cmd, args, buf, MAXRPOUT)) fallback rest = buf; for (ngr = 0; ((tok = strsep(&rest, "\r\n")) && (*tok) && ngr < RP_MAXGROUPS); ngr++) { // parse single line gr[ngr] = strtol(tok, &endptr, 10); if (endptr == tok) { msg(-1, "no group number detected in rp output\n"); fallback } if (*endptr == '*') c_group = gr[ngr]; // the rest of line is group name, skip } if (ngr < 1) { msg(0, "no ratpoison (rpws) groups detected\n"); fallback } msg(0, "number of ratpoison (rpws) groups: %d, current: %d\n", ngr, c_group); // cycle through rp groups for (gri = 0; gri < ngr; gri++) { w_group = gr[gri]; msg(0, "processing rp group %d\n", w_group); snprintf (arg2, arg2len, "gselect %d", w_group); if (!execAndReadStdout(ratpoison_cmd, args, NULL, 0)) continue; rp_add_windows_in_group(c_group, w_group); } return 1; } // // focus window in ratpoison // int rp_setFocus(int winNdx) { char selarg[64]; char *args[] = { "ratpoison", "-c", selarg, NULL }; char buf[MAXRPOUT]; // don't skip changing group if it's current, because // rp_initWinlist left current group inconsistent if (g.winlist[winNdx].desktop != DESKTOP_UNKNOWN) { snprintf(selarg, 63, "gselect %lu", g.winlist[winNdx].desktop); execAndReadStdout(ratpoison_cmd, args, buf, MAXRPOUT); // ignore possible failure } snprintf(selarg, 63, "select %d", g.winlist[winNdx].wm_id); if (!execAndReadStdout(ratpoison_cmd, args, buf, MAXRPOUT)) return 0; return 1; } alttab-1.3.0/src/util.c000066400000000000000000000466231326360524500147130ustar00rootroot00000000000000/* Helper functions. Copyright 2017-2018 Alexander Kulak. This file is part of alttab program. alttab is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. alttab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with alttab. If not, see . */ #include "util.h" #include #include extern Display* dpy; extern int scr; extern Window root; // PUBLIC: // // get all possible modifiers // unsigned int getOffendingModifiersMask() { unsigned int lockmask[3]; // num=0 scroll=1 caps=2 int i; XModifierKeymap *map; KeyCode numlock, scrolllock; static int masks[8] = { ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask }; memset(lockmask, 0, sizeof(unsigned int) * 3); numlock = XKeysymToKeycode(dpy, XK_Num_Lock); scrolllock = XKeysymToKeycode(dpy, XK_Scroll_Lock); map = XGetModifierMapping(dpy); if (map != NULL && map->max_keypermod > 0) { for (i = 0; i < 8 * map->max_keypermod; i++) { if (numlock != 0 && map->modifiermap[i] == numlock) lockmask[0] = masks[i / map->max_keypermod]; else if (scrolllock != 0 && map->modifiermap[i] == scrolllock) lockmask[1] = masks[i / map->max_keypermod]; } } lockmask[2] = LockMask; if (map) XFreeModifiermap(map); return (lockmask[0] | lockmask[1] | lockmask[2]); } // // for ignoring X errors // https://tronche.com/gui/x/xlib/event-handling/protocol-errors/default-handlers.html#XErrorEvent // int zeroErrorHandler(Display* dpy_our, XErrorEvent * theEvent) { ee_ignored = theEvent; #define EM 512 char etext[EM]; if (ee_complain) { memset(etext, '\0', EM); XGetErrorText(dpy_our, theEvent->error_code, etext, EM); fprintf(stderr, "Unexpected X Error: %s\n", etext); fprintf(stderr, "Error details: request_code=%hhu minor_code=%hhu resourceid=%lu\n", theEvent->request_code, theEvent->minor_code, theEvent->resourceid); } return 0; } // // grab/ungrab including all modifier combinations // returns 1 if success, 0 if fail (f.e., BadAccess). // Grabs are not restored on failure. // int changeKeygrab(Window win, bool grab, KeyCode keycode, unsigned int modmask, unsigned int ignored_modmask) { int debug = 1; unsigned int mask = 0; while (mask <= ignored_modmask) { if (mask & ~(ignored_modmask)) { ++mask; continue; } if (grab) { if (debug > 1) { fprintf(stderr, "grabbing %d with mask %d\n", keycode, (modmask | mask)); } ee_ignored = NULL; // to detect X error event ee_complain = false; // our handler will not croak XGrabKey(dpy, keycode, modmask | mask, win, True, GrabModeAsync, GrabModeAsync); XSync(dpy, False); // for error to appear if (ee_ignored) { ee_complain = true; return 0; // signal caller that XGrabKey failed } } else { if (debug > 1) { fprintf(stderr, "ungrabbing %d with mask %d\n", keycode, (modmask | mask)); } XUngrabKey(dpy, keycode, modmask | mask, win); } ++mask; } ee_complain = true; return 1; } /* // // register interest in KeyRelease events for the window // and its children recursively // void setSelectInput(Window win, int reg) { Window root, parent; Window *children; unsigned int nchildren, i; ee_complain = false; // warning: this overwrites any previous mask, // find other calls to XSelectInput if (XSelectInput (dpy, win, reg ? KeyReleaseMask | SubstructureNotifyMask : 0) != BadWindow && XQueryTree(dpy, win, &root, &parent, &children, &nchildren) != 0) { for (i = 0; i < nchildren; ++i) setSelectInput(children[i], reg); if (nchildren > 0 && children) XFree(children); } ee_complain = true; } */ // // execv program and read its stdout // int execAndReadStdout(char *exe, char *args[], char *buf, int bufsize) { int link[2]; pid_t pid; ssize_t rb; if (pipe(link) == -1) { perror("pipe"); return 0; } if ((pid = fork()) == -1) { perror("fork"); return 0; } if (pid == 0) { dup2(link[1], STDOUT_FILENO); close(link[0]); close(link[1]); execv(exe, args); perror("execv"); return 0; } else { close(link[1]); if (buf != NULL) { rb = read(link[0], buf, bufsize); if (rb == -1) *buf = '\0'; } close(link[0]); wait(NULL); } return 1; } // // Fit the src/src_mask drawable into dst, // centering and preserving aspect ratio // Slow but extension-independent version // 1=success 0=fail // int pixmapFitGeneric( Drawable src, Pixmap src_mask, Drawable dst, unsigned int srcW, unsigned int srcH, unsigned int dstWscal, unsigned int dstHscal, unsigned int dstWoff, unsigned int dstHoff) { unsigned long valuemask = 0; XGCValues values; GC gc = XCreateGC(dpy, root, valuemask, &values); if (!gc) { fprintf(stderr, "pixmapScale: can't create GC\n"); return 0; } XImage *srci = XGetImage(dpy, src, 0, 0, srcW, srcH, 0xffffffff, XYPixmap); if (!srci) { fprintf(stderr, "XGetImage failed\n"); XFreeGC(dpy, gc); return 0; } XImage *maski; if (src_mask != 0) { maski = XGetImage(dpy, src_mask, 0, 0, srcW, srcH, 0xffffffff, XYPixmap); if (!maski) { fprintf(stderr, "XGetImage failed for the mask\n"); XFreeGC(dpy, gc); return 0; } } unsigned long pixel; int x, y; int re = 0; for (x = 0; x < dstWscal; x++) { for (y = 0; y < dstHscal; y++) { if (src_mask != 0 && XGetPixel(maski, x * srcW / dstWscal, y * srcH / dstHscal) == 0) continue; pixel = XGetPixel(srci, x * srcW / dstWscal, y * srcH / dstHscal); if (!XSetForeground(dpy, gc, pixel)) re++; if (!XDrawPoint(dpy, dst, gc, x + dstWoff, y + dstHoff)) re++; } } if (re > 0) { fprintf(stderr, "something failed during scaling %d times\n", re); XDestroyImage(srci); XFreeGC(dpy, gc); return 0; } XDestroyImage(srci); XFreeGC(dpy, gc); return 1; } // // Fit the src/src_mask drawable into dst, // centering and preserving aspect ratio // XRender version // 1=success 0=fail // /usr/share/doc/libxrender-dev/libXrender.txt.gz // https://cgit.freedesktop.org/xorg/proto/renderproto/plain/renderproto.txt // int pixmapFitXrender( Drawable src, Pixmap src_mask, Drawable dst, unsigned int srcW, unsigned int srcH, unsigned int dstWscal, unsigned int dstHscal, unsigned int dstWoff, unsigned int dstHoff) { Picture Psrc, Pmask, Pdst; XRenderPictFormat *format, *format_of_mask; XTransform transform; format = XRenderFindVisualFormat(dpy, DefaultVisual(dpy, scr)); if (!format) { fprintf(stderr, "error, couldn't find valid Xrender format\n"); return 0; } format_of_mask = XRenderFindStandardFormat(dpy, PictStandardA1); if (!format_of_mask) { fprintf(stderr, "error, couldn't find valid Xrender format for mask\n"); return 0; } Psrc = XRenderCreatePicture(dpy, src, format, 0, NULL); Pmask = (src_mask != 0) ? XRenderCreatePicture(dpy, src_mask, format_of_mask, 0, NULL) : 0; Pdst = XRenderCreatePicture(dpy, dst, format, 0, NULL); XRenderSetPictureFilter(dpy, Psrc, FilterBilinear, 0, 0); if (Pmask != 0) XRenderSetPictureFilter(dpy, Pmask, FilterBilinear, 0, 0); transform.matrix[0][0] = (srcW << 16) / dstWscal; transform.matrix[0][1] = 0; transform.matrix[0][2] = 0; transform.matrix[1][0] = 0; transform.matrix[1][1] = (srcH << 16) / dstHscal; transform.matrix[1][2] = 0; transform.matrix[2][0] = 0; transform.matrix[2][1] = 0; transform.matrix[2][2] = XDoubleToFixed(1.0); XRenderSetPictureTransform(dpy, Psrc, &transform); if (Pmask != 0) XRenderSetPictureTransform(dpy, Pmask, &transform); XRenderComposite(dpy, PictOpOver, Psrc, Pmask, Pdst, 0, 0, 0, 0, dstWoff, dstHoff, dstWscal, dstHscal); XRenderFreePicture(dpy, Psrc); XRenderFreePicture(dpy, Pdst); if (Pmask != 0) XRenderFreePicture(dpy, Pmask); return 1; } // // Fit the src/src_mask drawable into dst, // centering and preserving aspect ratio // 1=success 0=fail // int pixmapFit( Drawable src, Pixmap src_mask, Drawable dst, unsigned int srcW, unsigned int srcH, unsigned int dstW, unsigned int dstH) { int event_basep, error_basep; int32_t fWrat, fHrat; // ratio * 65536 int dstWscal, dstWoff, dstHscal, dstHoff; fWrat = (dstW << 16) / srcW; fHrat = (dstH << 16) / srcH; if (fWrat > fHrat) { dstWscal = ((srcW * fHrat) >> 16); if (abs(dstWscal - dstW) <= 1) // suppress rounding errors dstWscal = dstW; dstWoff = (dstW - dstWscal) / 2; dstHscal = dstH; dstHoff = 0; } else { dstWscal = dstW; dstWoff = 0; dstHscal = ((srcH * fWrat) >> 16); if (abs(dstHscal - dstH) <= 1) dstHscal = dstH; dstHoff = (dstH - dstHscal) / 2; } return XRenderQueryExtension(dpy, &event_basep, &error_basep) == True ? pixmapFitXrender(src, src_mask, dst, srcW, srcH, dstWscal, dstHscal, dstWoff, dstHoff) : pixmapFitGeneric(src, src_mask, dst, srcW, srcH, dstWscal, dstHscal, dstWoff, dstHoff); } // // Return the number of utf8 code points in the buffer at s // size_t utf8len(char *s) { size_t len = 0; for (; *s; ++s) if ((*s & 0xC0) != 0x80) ++len; return len; } // // Return a pointer to the beginning of the pos'th utf8 codepoint // in the buffer at s // char *utf8index(char *s, size_t pos) { ++pos; for (; *s; ++s) { if ((*s & 0xC0) != 0x80) --pos; if (pos == 0) return s; } return NULL; } // // Draw utf-8 string str on window/pixmap d, // using *font and *xrcolor, // splitting and cropping it to fit (x1,y1 - x1+width,y1+height) rectangle. // Return 1 if ok. // int drawMultiLine(Drawable d, XftFont * font, XftColor * xftcolor, char *str, unsigned int x1, unsigned int y1, unsigned int width, unsigned int height) { int debug = 0; XftDraw *xftdraw; XGlyphInfo ext; #define M 2014 char line[M]; size_t line_clen, line_ulen; // current line (substring) to draw size_t line_from_sym, line_to_sym; char *line_from_char, *line_to_char; // and its "window" in str float approx_px_per_sym; int line_new_ulen; unsigned int x, y; // current upper left corner at which XftDrawStringUtf8 will draw float line_interval = 0.3; int line_spacing_px; bool finish_after_draw = false; if ((*str) == '\0') return 1; xftdraw = XftDrawCreate(dpy, d, DefaultVisual(dpy, 0), DefaultColormap(dpy, scr)); //XftColorAllocValue (dpy,DefaultVisual(dpy,scr),DefaultColormap(dpy,scr),xrcolor,&xftcolor); // once: calculate approx_px_per_sym and line_spacing_px XftTextExtentsUtf8(dpy, font, (unsigned char *)str, strlen(str), &ext); approx_px_per_sym = (float)ext.width / (float)utf8len(str); line_spacing_px = (float)ext.height * line_interval; // cycle by lines line_to_sym = 0; x = x1; y = y1; do { // have line_to_sym from previous line // initialize new line with the rest of str; estimate px_per_sym /* ACTIVE CHANGE: */ line_from_sym = line_to_sym; line_from_char = utf8index(str, line_from_sym); strncpy(line, line_from_char, M); line[M - 1] = '\0'; line_clen = strlen(line); line_ulen = utf8len(line); if (debug > 0) { fprintf(stderr, "NEW LINE: \"%s\" ulen=%zu clen=%zu\n", line, line_ulen, line_clen); } // first approximation for line size line_new_ulen = (float)width / approx_px_per_sym; if (line_new_ulen >= line_ulen) { // just draw the end of str and finish XftTextExtentsUtf8(dpy, font, (unsigned char *)line, line_clen, &ext); finish_after_draw = true; goto Draw; } /* ACTIVE CHANGE: */ line_ulen = line_new_ulen; line_to_sym = line_from_sym + line_ulen; // try to cut here line_to_char = utf8index(str, line_to_sym); line[line_to_char - line_from_char] = '\0'; line_clen = strlen(line); XftTextExtentsUtf8(dpy, font, (unsigned char *)line, line_clen, &ext); if (debug > 0) { fprintf(stderr, "first cut approximation: \"%s\" ulen=%zu clen=%zu width=%d px, x2-x1=%d px\n", line, line_ulen, line_clen, ext.width, width); } while (ext.width > width) { // decrease line by 1 utf symbol /* ACTIVE CHANGE: */ line_ulen--; line_to_sym--; line_to_char = utf8index(str, line_to_sym); line[line_to_char - line_from_char] = '\0'; line_clen = strlen(line); XftTextExtentsUtf8(dpy, font, (unsigned char *)line, line_clen, &ext); if (debug > 0) { fprintf(stderr, "cut correction: \"%s\" ulen=%zu clen=%zu width=%d px, x2-x1=%d px\n", line, line_ulen, line_clen, ext.width, width); } } Draw: if ((y + ext.height) > (y1 + height)) { if (debug > 0) { fprintf(stderr, "y+ext.height=%d, y2=%d - breaking\n", y + ext.height, (y1 + height)); } break; } x += (width - ext.width) / 2; // center XftDrawStringUtf8(xftdraw, xftcolor, font, x + ext.x, y + ext.y, (unsigned char *)line, line_clen); if (debug > 0) { GC gc = DefaultGC(dpy, scr); XSetForeground(dpy, gc, WhitePixel(dpy, scr)); XDrawRectangle(dpy, d, gc, x, y, ext.width, ext.height); } x = x1; y += ext.height + line_spacing_px; } while (!finish_after_draw); XftDrawDestroy(xftdraw); return 1; } // // Test for previous function. Use: // int main() { return drawMultiLine_test() ? 0 : 1; } // g++ XftTest.cc -lX11 -lXft `pkg-config --cflags freetype2` // not used in alttab // int drawMultiLine_test() { // define these as globals in caller dpy = XOpenDisplay(NULL); scr = DefaultScreen(dpy); root = RootWindow(dpy, scr); Window win = XCreateSimpleWindow(dpy, root, 0, 0, 1000, 600, 0, 0, 0); XMapWindow(dpy, win); XftColor xftcolor; XftColorAllocName(dpy, DefaultVisual(dpy, 0), DefaultColormap(dpy, 0), "blue", &xftcolor); XftFont *font = NULL; font = XftFontOpenName(dpy, 0, "DejaVu Sans Condensed-50"); //font = XftFontOpenName(dpy,0,"Arial-24"); if (!font) return 0; char line[104]; line[0] = '\0'; char *add = "example of drawMultiLine "; int sc; for (sc = 0; sc < 4; sc++) strncat(line, add, 25); GC gc = DefaultGC(dpy, 0); XSetForeground(dpy, gc, WhitePixel(dpy, 0)); XDrawRectangle(dpy, win, gc, 100, 100, 500, 400); int r = drawMultiLine(win, font, &xftcolor, line, 100, 100, 500, 400); XFlush(dpy); sleep(2); XftFontClose(dpy, font); return r; } // // check procedure for XCheckIfEvent which always returns true // Bool predproc_true(Display * display, XEvent * event, char *arg) { return (True); } // // obtain X Window property // char *get_x_property(Window win, Atom prop_type, char *prop_name, unsigned long *prop_size) { int prop_ret_fmt; unsigned long n_prop_ret_items, ret_bytes_after, size; unsigned char *ret_prop; char *r; Atom prop_name_x, prop_ret_type_x; int debug = 0; prop_name_x = XInternAtom(dpy, prop_name, False); ee_complain = false; Status propstatus = XGetWindowProperty(dpy, win, prop_name_x, 0, MAXPROPLEN / 4, False, prop_type, &prop_ret_type_x, &prop_ret_fmt, &n_prop_ret_items, &ret_bytes_after, &ret_prop); XSync(dpy, False); // for error to "appear" ee_complain = true; if (propstatus != Success && debug > 0) { fprintf(stderr, "get_x_property: XGetWindowProperty failed (win %ld, prop %s)\n", win, prop_name); return (char *)NULL; } if (prop_type != prop_ret_type_x) { // this diagnostic may cause BadAtom if (debug > 1) fprintf(stderr, "get_x_property: prop type doesn't match (win %ld, prop %s, requested: %s, obtained: %s)\n", win, prop_name, (prop_type == 0) ? "0" : XGetAtomName(dpy, prop_type), (prop_ret_type_x == 0) ? "0" : XGetAtomName(dpy, prop_ret_type_x)); XFree(ret_prop); return (char *)NULL; } size = (prop_ret_fmt / 8) * n_prop_ret_items; if (prop_ret_fmt == 32) { size *= sizeof(long) / 4; } r = malloc(size + 1); memcpy(r, ret_prop, size); r[size] = '\0'; if (prop_size) { *prop_size = size; } XFree(ret_prop); return r; } // // do rectangles cross? // bool rectangles_cross(quad a, quad b) { return !( a.x >= (b.x + b.w) || (a.x + a.w) <= b.x || a.y >= (b.y + b.h) || (a.y + a.h) <= b.y ); } // // coordinates relative to root // bool get_absolute_coordinates(Window w, quad *q) { Window child; XWindowAttributes wa; int x, y; if (XTranslateCoordinates (dpy, w, root, 0, 0, &x, &y, &child) == False) return false; if (XGetWindowAttributes (dpy, w, &wa) == 0) return false; q->x = x; q->y = y; q->w = wa.width; q->h = wa.height; return true; } // // removes argument from argv // void remove_arg(int *argc, char **argv, int argn) { int i; for(i = argn; i < (*argc); ++i) argv[i] = argv[i+1]; --(*argc); } // // return resource/option `appname.name' // or NULL if not specified // char* xresource_load_string(XrmDatabase *db, const char *appname, char *name) { char xappname[MAXNAMESZ]; XrmValue v; char *type; snprintf (xappname, MAXNAMESZ, "%s.%s", appname, name); XrmGetResource (*db, xappname, xappname, &type, &v); return (v.addr != NULL && !strncmp ("String", type, 6)) ? v.addr : NULL; } // // search for resource/option `appname.name' // return: // 1: ok, result in *ret // 0: not specified // -1: conversion error // int xresource_load_int(XrmDatabase *db, const char *appname, char *name, unsigned int *ret) { unsigned int r; char *endptr; char *s = xresource_load_string(db, appname, name); if (s != NULL) { r = strtol(s, &endptr, 0); if (*s != '\0' && *endptr == '\0') { *ret = r; return 1; } else { return -1; } } else { return 0; } return 0; } // // return keycode corresponding to resource/option `appname.name.keysym' // 0: not specified // -1: bad value, errmsg is set (caller must free) // int ksym_option_to_keycode(XrmDatabase *db, const char *appname, const char *name, char **errmsg) { char *endptr, *opt; KeySym ksym; char xresr[MAXNAMESZ]; KeyCode retcode = 0; endptr = opt = NULL; snprintf (xresr, MAXNAMESZ, "%s.keysym", name); xresr[MAXNAMESZ-1]='\0'; opt = xresource_load_string(db, appname, xresr); if (opt) { ksym = XStringToKeysym(opt); if (ksym == NoSymbol) { ksym = strtol(opt, &endptr, 0); if (!(*opt != '\0' && *endptr == '\0')) ksym = NoSymbol; } if (ksym != NoSymbol) { retcode = XKeysymToKeycode(dpy, ksym); if (retcode == 0) { *errmsg = malloc(ERRLEN); snprintf(*errmsg, ERRLEN, "the specified %s keysym is not defined for any keycode", name); return -1; } return retcode; } else { *errmsg = malloc(ERRLEN); snprintf(*errmsg, ERRLEN, "invalid %s keysym", name); return -1; } } return 0; } // // scan modifier table, // return first modifier corresponding to given keycode, // in the form of modmask, // or zero if not found // unsigned int keycode_to_modmask(KeyCode kc) { int mi, ksi; KeyCode tkc; XModifierKeymap *xmk = XGetModifierMapping(dpy); for (mi = 0; mi < 8; mi++) { for (ksi = 0; ksi < xmk->max_keypermod; ksi++) { tkc = (xmk->modifiermap)[xmk->max_keypermod * mi + ksi]; if (tkc == kc) { return (1 << mi); } } } return 0; } alttab-1.3.0/src/util.h000066400000000000000000000056461326360524500147200ustar00rootroot00000000000000/* util.c definitions. Copyright 2017-2018 Alexander Kulak. This file is part of alttab program. alttab is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. alttab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with alttab. If not, see . */ #ifndef UTIL_H #define UTIL_H #include #include #include #include #include #include #include #include #include #define MAXPROPLEN 4096 #define ERRLEN 2048 #ifndef COMTYPES #define COMTYPES typedef struct { int w; int h; int x; int y; } quad; #define MAXNAMESZ 256 #endif XErrorEvent *ee_ignored; bool ee_complain; unsigned int getOffendingModifiersMask(); int changeKeygrab(Window win, bool grab, KeyCode keycode, unsigned int modmask, unsigned int ignored_modmask); int zeroErrorHandler(Display * dpy_our, XErrorEvent * theEvent); //void setSelectInput(Window win, int reg); int execAndReadStdout(char *exe, char *args[], char *buf, int bufsize); int pixmapFitGeneric(Drawable src, Pixmap src_mask, Drawable dst, unsigned int srcW, unsigned int srcH, unsigned int dstWscaled, unsigned int dstHscaled, unsigned int dstWoffset, unsigned int dstHoffset); int pixmapFitXrender(Drawable src, Pixmap src_mask, Drawable dst, unsigned int srcW, unsigned int srcH, unsigned int dstWscaled, unsigned int dstHscaled, unsigned int dstWoffset, unsigned int dstHoffset); int pixmapFit(Drawable src, Pixmap src_mask, Drawable dst, unsigned int srcW, unsigned int srcH, unsigned int dstW, unsigned int dstH); size_t utf8len(char *s); char *utf8index(char *s, size_t pos); int drawMultiLine(Drawable d, XftFont * font, XftColor * xftcolor, char *str, unsigned int x1, unsigned int y1, unsigned int width, unsigned int height); int drawMultiLine_test(); Bool predproc_true(Display * display, XEvent * event, char *arg); char *get_x_property(Window win, Atom prop_type, char *prop_name, unsigned long *prop_size); bool rectangles_cross(quad a, quad b); bool get_absolute_coordinates(Window w, quad *q); void remove_arg(int *argc, char **argv, int argn); char* xresource_load_string(XrmDatabase *db, const char *appname, char *name); int xresource_load_int(XrmDatabase *db, const char *appname, char *name, unsigned int *ret); int ksym_option_to_keycode(XrmDatabase *db, const char *appname, const char *name, char **errmsg); unsigned int keycode_to_modmask(KeyCode kc); #endif alttab-1.3.0/src/win.c000066400000000000000000000440241326360524500145240ustar00rootroot00000000000000/* Interface with foreign windows common for all WMs. Copyright 2017-2018 Alexander Kulak. This file is part of alttab program. alttab is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. alttab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with alttab. If not, see . */ #include #include #include #include #include #include #include #include #include #include //#include #include "alttab.h" #include "util.h" extern Globals g; extern Display *dpy; extern int scr; extern Window root; // PRIVATE // // helper for windows' qsort // CAUSES O(log(N)) OR EVEN WORSE! reintroduce winlist[]->order instead? // static int sort_by_order(const void *p1, const void *p2) { PermanentWindowInfo *s; WindowInfo *w1 = (WindowInfo*) p1; WindowInfo *w2 = (WindowInfo*) p2; int r = 0; DL_FOREACH(g.sortlist, s) { if (s->id == w1->id ) { r = (s->id == w2->id) ? 0 : -1; break; } if (s->id == w2->id ) { r = 1; break; } } //msg(0, "cmp 0x%lx <-> 0x%lx = %d\n", w1->id, w2->id, r); return r; } // // debug output of sortlist // void print_sortlist() { PermanentWindowInfo *s; msg(0, "sortlist:\n"); DL_FOREACH (g.sortlist, s) { msg(0, " 0x%lx\n", s->id); } } // // debug output of winlist // void print_winlist() { int wi, si; PermanentWindowInfo *s; if (g.winlist == NULL && g.maxNdx == 0) return; // safety msg(0, "winlist:\n"); for (wi = 0; wi < g.maxNdx; wi++) { si = 0; DL_FOREACH (g.sortlist, s) { if (s == NULL) continue; // safety if (s->id == g.winlist[wi].id ) break; si++; } msg(0, " %4d: 0x%lx %s\n", si, g.winlist[wi].id, g.winlist[wi].name); } } // PUBLIC // // add Window to the head/tail of sortlist, if it's not in sortlist already // if move==true and the item is already in sortlist, then move it to the head/tail // void addToSortlist(Window w, bool to_head, bool move) { PermanentWindowInfo *s; bool was = false; bool add = false; DL_SEARCH_SCALAR (g.sortlist, s, id, w); if (s == NULL) { s = malloc (sizeof (PermanentWindowInfo)); if (s == NULL) return; s->id = w; add = true; } else { was = true; if (move) { DL_DELETE (g.sortlist, s); add = true; } } if (add) { if (to_head) { DL_PREPEND (g.sortlist, s); } else { DL_APPEND (g.sortlist, s); } } if (add && !was) { // new window // register interest in events x_setCommonPropertiesForAnyWindow(w); } } // // early initialization // once per execution // int startupWintasks() { long rootevmask = 0; g.sortlist = NULL; // utlist head must be initialized to NULL g.ic = NULL; // uthash too if (g.option_iconSrc != ISRC_RAM) { g.ic = initIcon(); initIconHash(&(g.ic)); } // root: watching for _NET_ACTIVE_WINDOW if (g.option_wm == WM_EWMH) { g.naw = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", true); rootevmask |= PropertyChangeMask; } // warning: this overwrites any previous value. // note: x_setCommonPropertiesForAnyWindow does the similar thing // for any window other than root and uiwin if (rootevmask != 0) { XSelectInput(dpy, root, rootevmask); } switch (g.option_wm) { case WM_NO: return 1; case WM_RATPOISON: return rp_startupWintasks(); case WM_EWMH: return 1; case WM_TWM: return 1; default: return 0; } } // // search for icon in WM hints of "wi". // if found, then // fill in "wi->icon_pixmap" and "wi->icon_mask" // and return 1, // 0 otherwise. // int addIconFromHints(WindowInfo * wi) { XWMHints *hints; Pixmap hicon, hmask; hicon = hmask = 0; if ((hints = XGetWMHints(dpy, wi->id))) { msg(1, "IconPixmapHint: %ld, icon_pixmap: %lu, IconMaskHint: %ld, icon_mask: %lu, IconWindowHint: %ld, icon_window: %lu\n", hints->flags & IconPixmapHint, hints->icon_pixmap, hints->flags & IconMaskHint, hints->icon_mask, hints->flags & IconWindowHint, hints->icon_window); if ((hints->flags & IconWindowHint) & (!(hints->flags & IconPixmapHint))) { msg(0, "icon_window without icon_pixmap in hints, ignoring\n"); // not usable in xterm? } hicon = (hints->flags & IconPixmapHint) ? hints->icon_pixmap : 0; // ((hints->flags & IconPixmapHint) ? hints->icon_pixmap : ( // (hints->flags & IconWindowHint) ? hints->icon_window : 0)); hmask = (hints->flags & IconMaskHint) ? hints->icon_mask : 0; XFree(hints); if (hicon) msg(0, "no icon in WM hints (%s)\n", wi->name); } else { msg(0, "no WM hints (%s)\n", wi->name); } if (hmask != 0) wi->icon_mask = hmask; if (hicon != 0) { wi->icon_drawable = hicon; return 1; } return 0; } // // search for "wi" application class in PNG hash. // if found, then // if program options don't request size comparison // OR png size match better, then // fill in "wi->icon_pixmap" and "wi->icon_mask" // and return 1 // return 0 otherwise. // slow disk operations possible. // int addIconFromFiles(WindowInfo * wi) { char *appclass, *tryclass; long unsigned int class_size; icon_t *ic; appclass = get_x_property(wi->id, XA_STRING, "WM_CLASS", &class_size); if (appclass) { for (tryclass = appclass; tryclass - appclass < class_size; tryclass += (strlen(tryclass) + 1)) { ic = lookupIcon(tryclass); if (ic && (g.option_iconSrc != ISRC_SIZE || iconMatchBetter(ic->src_w, ic->src_h, wi->icon_w, wi->icon_h)) ) { msg(0, "using png icon for %s\n", tryclass); if (ic->drawable == None) { msg(1, "loading content for %s\n", ic->app); if (loadIconContent(ic) == 0) { msg(-1, "can't load png icon content\n"); continue; } } wi->icon_drawable = ic->drawable; wi->icon_mask = 0; return 1; } } } else { msg(0, "can't find WM_CLASS for \"%s\"\n", wi->name); } return 0; } // // add single window info into g.winlist and fix g.sortlist // used by x, rp, ... // only dpy and win are mandatory // int addWindowInfo(Window win, int reclevel, int wm_id, unsigned long desktop, char *wm_name) { if (! (g.winlist = realloc(g.winlist, (g.maxNdx + 1) * sizeof(WindowInfo)))) return 0; g.winlist[g.maxNdx].id = win; g.winlist[g.maxNdx].wm_id = wm_id; // 1. get name if (wm_name) { strncpy(g.winlist[g.maxNdx].name, wm_name, MAXNAMESZ); } else { unsigned char *wn; Atom prop = XInternAtom(dpy, "WM_NAME", false), type; int form; unsigned long remain, len; if (XGetWindowProperty(dpy, win, prop, 0, MAXNAMESZ, false, AnyPropertyType, &type, &form, &len, &remain, &wn) == Success && wn) { strncpy(g.winlist[g.maxNdx].name, (char *)wn, MAXNAMESZ); g.winlist[g.maxNdx].name[MAXNAMESZ - 1] = '\0'; XFree(wn); } else { g.winlist[g.maxNdx].name[0] = '\0'; } } // guessing name without WM hints // 2. icon // options: // * WM_HINTS: https://tronche.com/gui/x/xlib/ICC/client-to-window-manager/wm-hints.html // * load icons from files. // * use full windows as icons. https://www.talisman.org/~erlkonig/misc/x11-composite-tutorial/ // it's more sophisticated than icon_drawable=win, because hidden window contents aren't available. // * understand hints->icon_window (twm concept, xterm). g.winlist[g.maxNdx].icon_drawable = g.winlist[g.maxNdx].icon_mask = g.winlist[g.maxNdx].icon_w = g.winlist[g.maxNdx].icon_h = 0; unsigned int icon_depth = 0; g.winlist[g.maxNdx].icon_allocated = false; // search for icon in hints or file hash int icon_in_hints = 0; int opt = g.option_iconSrc; if (opt != ISRC_FILES) icon_in_hints = addIconFromHints(&(g.winlist[g.maxNdx])); if ((opt == ISRC_FALLBACK && !icon_in_hints) || opt == ISRC_SIZE || opt == ISRC_FILES) addIconFromFiles(&(g.winlist[g.maxNdx])); // extract icon width/height/depth Window root_return; int x_return, y_return; unsigned int border_width_return; if (g.winlist[g.maxNdx].icon_drawable) { if (XGetGeometry(dpy, g.winlist[g.maxNdx].icon_drawable, &root_return, &x_return, &y_return, &(g.winlist[g.maxNdx].icon_w), &(g.winlist[g.maxNdx].icon_h), &border_width_return, &icon_depth) == 0) { msg(0, "icon dimensions unknown (%s)\n", g.winlist[g.maxNdx].name); // probably draw placeholder? g.winlist[g.maxNdx].icon_drawable = 0; } else { msg(1, "depth=%d\n", icon_depth); } } // convert icon with different depth (currently 1 only) into default depth if (g.winlist[g.maxNdx].icon_drawable && icon_depth == 1) { msg(0, "rebuilding icon from depth 1 to %d (%s)\n", XDEPTH, g.winlist[g.maxNdx].name); Pixmap pswap = XCreatePixmap(dpy, g.winlist[g.maxNdx].icon_drawable, g.winlist[g.maxNdx].icon_w, g.winlist[g.maxNdx].icon_h, XDEPTH); if (!pswap) die("can't create pixmap"); // GC should be already prepared in uiShow if (!XCopyPlane (dpy, g.winlist[g.maxNdx].icon_drawable, pswap, g.gcDirect, 0, 0, g.winlist[g.maxNdx].icon_w, g.winlist[g.maxNdx].icon_h, 0, 0, 1)) die("can't copy plane"); // plane #1? g.winlist[g.maxNdx].icon_drawable = pswap; g.winlist[g.maxNdx].icon_allocated = true; // for subsequent free() icon_depth = XDEPTH; } if (g.winlist[g.maxNdx].icon_drawable && icon_depth != XDEPTH) { msg(-1, "can't handle icon depth other than %d or 1 (%d, %s). Please report this condition.\n", XDEPTH, icon_depth, g.winlist[g.maxNdx].name); g.winlist[g.maxNdx].icon_drawable = g.winlist[g.maxNdx].icon_w = g.winlist[g.maxNdx].icon_h = 0; } // 3. sort addToSortlist (win, false, false); // 4. other window data g.winlist[g.maxNdx].reclevel = reclevel; g.winlist[g.maxNdx].desktop = desktop; g.maxNdx++; msg(1, "window %d, id %lx added to list\n", g.maxNdx, win); return 1; } // addWindowInfo() // // sets g.winlist, g.maxNdx, g.selNdx // updates g.sortlist, g.sortNdx // n.b.: in heavy WM, use _NET_CLIENT_LIST // direction is direction of first press: with shift or without // int initWinlist(bool direction) { int r; if (g.debug > 1) { msg(1, "before initWinlist\n"); print_sortlist(); } switch (g.option_wm) { case WM_NO: r = x_initWindowsInfoRecursive(root, 0); // note: direction/current window index aren't used break; case WM_RATPOISON: r = rp_initWinlist(); break; case WM_EWMH: r = ewmh_initWinlist(); break; case WM_TWM: r = x_initWindowsInfoRecursive(root, 0); break; default: r = 0; break; } // sort winlist according to .order if (g.debug > 1) { msg(1, "before qsort\n"); print_sortlist(); print_winlist(); } qsort(g.winlist, g.maxNdx, sizeof(WindowInfo), sort_by_order); if (g.debug > 1) { msg(1, "after qsort\n"); print_winlist(); } g.selNdx = direction ? (g.maxNdx - 1) : (( 0 >= (g.maxNdx - 1)) ? 0 : 1); //if (g.selNdx<0 || g.selNdx>=g.maxNdx) { g.selNdx=0; } // just for case msg(1, "initWinlist ret: number of items in winlist: %d, current (selected) item in winlist: %d\n", g.maxNdx, g.selNdx); return r; } // // counterpair for initWinlist // frees icons and winlist, but not tiles, as they are allocated in gui.c // void freeWinlist() { msg(0, "destroying icons and winlist\n"); if (g.debug > 1) { msg(1, "before freeWinlist\n"); print_sortlist(); } int y; for (y = 0; y < g.maxNdx; y++) { if (g.winlist[y].icon_allocated) XFreePixmap(dpy, g.winlist[y].icon_drawable); } free(g.winlist); } // // popup/focus this X window // int setFocus(int winNdx) { int r; switch (g.option_wm) { case WM_NO: r = ewmh_setFocus(winNdx, 0); // for WM which isn't identified as EWMH compatible but accepts setting focus (dwm) x_setFocus(winNdx); break; case WM_RATPOISON: r = rp_setFocus(winNdx); break; case WM_EWMH: r = ewmh_setFocus(winNdx, 0); // XSetInputFocus stuff. // skippy-xd does it and notes that "order is important". // fixes #28. // it must be protected by testing IsViewable in the same way // as in x.c, or BadMatch happens after switching desktops. XWindowAttributes att; XGetWindowAttributes(dpy, g.winlist[winNdx].id, &att); if (att.map_state == IsViewable) XSetInputFocus(dpy, g.winlist[winNdx].id, RevertToParent, CurrentTime); break; case WM_TWM: r = ewmh_setFocus(winNdx, 0); x_setFocus(winNdx); break; default: return 0; } // pull to head addToSortlist (g.winlist[winNdx].id, true, true); return r; } // // event handler for PropertyChange // most of the time called when winlist[] is not initialized // currently it updates sortlist on _NET_ACTIVE_WINDOW change // because it's a handler of frequent event, // there are shortcuts to return as soon as possible // void winPropChangeEvent(XPropertyEvent e) // man XPropertyEvent { Window aw; // no _NET_ACTIVE_WINDOW atom, probably not EWMH? if (g.naw == None) return; // property change event not for root window? if (e.window != root) return; // root property other than _NET_ACTIVE_WINDOW changed? if (e.atom != g.naw) return; // don't check for wm==EWMH, because _NET_ACTIVE_WINDOW changed for sure aw = ewmh_getActiveWindow(); // can't get active window if (!aw) return; // focus changed to our own old/current/zero window? if (aw == getUiwin()) return; // focus changed to window which is already top? if (g.sortlist != NULL && aw == g.sortlist->id) return; // is window hidden in WM? if (ewmh_skipWindowInTaskbar(aw)) return; /* // the i3 sortlist bug is not here, see ewmh.c init_winlist instead // if (aw == g.last.prev) { struct timeval ctv; int usec_delta; gettimeofday(&ctv, NULL); usec_delta = (ctv.tv_sec - g.last.tv.tv_sec) * 1E6 + (ctv.tv_usec - g.last.tv.tv_usec); msg(0, "delta %d\n", usec_delta); if (usec_delta < 5E5) { // half a second return; } msg(0, PREF"pulling 'prev' 0x%lx supressed\n", aw); } if (aw == g.last.to) { msg(0, PREF"pulling 'to' 0x%lx supressed\n", aw); return; } */ // finally, add/pop window to the head of sortlist // unfortunately, on focus by alttab, this is fired twice: // 1) when alttab window gone, previous window becomes active, // 2) then alttab-focused window becomes active. msg(0, "event PropertyChange: 0x%lx active, pull to the head of sortlist\n", aw); addToSortlist (aw, true, true); } // // DestroyNotify handler // removes the window from sortlist // void winDestroyEvent(XDestroyWindowEvent e) // man XDestroyWindowEvent { PermanentWindowInfo *s; DL_SEARCH_SCALAR (g.sortlist, s, id, e.window); if (s != NULL) { msg(1, "event DestroyNotify: 0x%lx found in sortlist, removing\n", e.window); DL_DELETE (g.sortlist, s); } } // // common filter before adding window to winlist // it checks: desktop, screen // depending on global options and dimensions // bool common_skipWindow(Window w, unsigned long current_desktop, unsigned long window_desktop) { quad wq; // window's absolute coordinates if (g.option_desktop == DESK_CURRENT && current_desktop != window_desktop && current_desktop != DESKTOP_UNKNOWN && window_desktop != DESKTOP_UNKNOWN) { msg(1, "window not on active desktop, skipped (window's %ld, current %ld)\n", window_desktop, current_desktop); return true; } if (g.option_desktop == DESK_NOSPECIAL && window_desktop == -1) { msg(1, "window on -1 desktop, skipped\n"); return true; } if (g.option_desktop == DESK_NOCURRENT && (window_desktop == current_desktop || window_desktop == -1)) { msg(1, "window on current or -1 desktop, skipped\n"); return true; } // man page: -sc 0: Screen is defined according to -vp pointer or -vp focus. // assuming g.vp already calculated in gui.c if (g.option_screen == SCR_CURRENT && (g.option_vp_mode == VP_POINTER || g.option_vp_mode == VP_FOCUS)) { if (! get_absolute_coordinates(w, &wq)) { msg(-1, "can't get coordinates of window 0x%lx, included anyway\n", w); } else { if (! rectangles_cross(g.vp, wq)) { msg(1, "window's area doesn't cross with current screen, skipped\n"); return true; } } } return false; } // // focus change handler // does the same as _NET_ACTIVE_WINDOW handler // but in non-EWMH environment // void winFocusChangeEvent(XFocusChangeEvent e) { Window w; // in non-EWMH only // probably should also maintain _NET_ACTIVE_WINDOW // support flag in EwmhFeatures if (g.option_wm == WM_EWMH) return; // focusIn only if (e.type != FocusIn) return; // skip Grab/Ungrab notification modes if (e.mode != NotifyNormal) return; // focus changed to our own old/current/zero window? w = e.window; if (w == getUiwin()) return; // focus changed to window which is already top? if (g.sortlist != NULL && w == g.sortlist->id) return; msg(1, "event focusIn 0x%lx, pull to the head of sortlist\n", w); addToSortlist (w, true, true); } alttab-1.3.0/src/x.c000066400000000000000000000113771326360524500142030ustar00rootroot00000000000000/* Interface with foreign windows in raw X11. Copyright 2017-2018 Alexander Kulak. This file is part of alttab program. alttab is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. alttab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with alttab. If not, see . */ #include #include #include #include #include #include #include "alttab.h" #include "util.h" extern Globals g; extern Display* dpy; extern int scr; extern Window root; // PRIVATE // // get window group leader // to be used later. rewritten, not tested. // Window x_get_leader(Window win) { Window *retprop; XWMHints *h; Window leader = None; retprop = (Window *) get_x_property(win, XA_WINDOW, "WM_CLIENT_LEADER", NULL); if (retprop != NULL) { leader = retprop[0]; XFree(retprop); } else { if (!(h = XGetWMHints(dpy, win))) return None; if (h->flags & WindowGroupHint) leader = h->window_group; } return leader; } // PUBLIC // // set winlist,maxNdx recursively using raw Xlib // first call should be (win=root, reclevel=0) // int x_initWindowsInfoRecursive(Window win, int reclevel) { Window root, parent; Window *children; unsigned int nchildren, i; // Window leader; XWindowAttributes wa; char* winname; // check if window is "leader" or no prop, skip otherwise // caveat: in rp, gvim leader has no file name and icon // this doesn't work in raw X: leader may be not viewable. // doesn't work in twm either: qutebrowser has meaningless leader. /* leader = 0; if (g.option_wm == WM_TWM) { leader = x_get_leader (win); msg(1, "win: 0x%lx leader: 0x%lx\n", win, leader); } */ // in non-twm, add viewable only // caveat: in rp, skips anything except of visible window // probably add an option for this in WMs too? wa.map_state = 0; if (g.option_wm != WM_TWM) XGetWindowAttributes(dpy, win, &wa); // in twm-like, add only windows with a name winname = NULL; if (g.option_wm == WM_TWM) { winname = get_x_property(win, XA_STRING, "WM_NAME", NULL); } // insert detailed window data in window list if ( (g.option_wm == WM_TWM || wa.map_state == IsViewable) && reclevel != 0 && (g.option_wm != WM_TWM || winname != NULL) // && (g.option_wm != WM_TWM || leader == win) && ! common_skipWindow(win, DESKTOP_UNKNOWN, DESKTOP_UNKNOWN) ) { addWindowInfo(win, reclevel, 0, DESKTOP_UNKNOWN, winname); } // skip children if max recursion level reached if (g.option_max_reclevel != -1 && reclevel >= g.option_max_reclevel) return 1; // recursion if (XQueryTree(dpy, win, &root, &parent, &children, &nchildren) == 0) { msg(0, "can't get window tree for 0x%lx\n", win); return 0; } for (i = 0; i < nchildren; ++i) { x_initWindowsInfoRecursive(children[i], reclevel + 1); } if (nchildren > 0 && children) { XFree(children); } return 1; } // // set window focus in raw X // int x_setFocus(int wndx) { Window w = g.winlist[wndx].id; // 1. XWarpPointer // If such WMs would be discovered that prevent our focus // AND set their own focus via the pointer only. // 2. XRaiseWindow required, but doesn't make window "Viewable" XRaiseWindow(dpy, w); // 3. XSetInputFocus // "The specified focus window must be viewable at the time // XSetInputFocus is called, or a BadMatch error results." // This check is redundant: non-viewable windows isn't added to winlist in raw X anyway XWindowAttributes att; XGetWindowAttributes(dpy, w, &att); if (att.map_state == IsViewable) XSetInputFocus(dpy, w, RevertToParent, CurrentTime); return 1; } // // this is where alttab is supposed to set properties or // register interest in event for ANY foreign window encountered. // warning: this is called only on addition to sortlist. // void x_setCommonPropertiesForAnyWindow(Window win) { long evmask = 0; // root and our window are treated elsewhere if (win == root || win == getUiwin()) return; // for delete notification evmask |= StructureNotifyMask; // for focusIn notification if (g.option_wm != WM_EWMH) { msg(0, "using direct focus tracking for 0x%lx\n", win); evmask |= FocusChangeMask; } // warning: this overwrites previous value if (evmask != 0) XSelectInput(dpy, win, evmask); } alttab-1.3.0/test/000077500000000000000000000000001326360524500137475ustar00rootroot00000000000000alttab-1.3.0/test/Makefile000066400000000000000000000017731326360524500154170ustar00rootroot00000000000000# # Stub for possible future test facility. # # Copyright 2017-2018 Alexander Kulak. # This file is part of alttab program. # # alttab is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # alttab is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with alttab. If not, see . # FLAGS=-lpng -lX11 -g -O0 -Wall all: pngtest pngtest: pngtest.o ../src/pngd.o gcc $(FLAGS) -o pngtest pngtest.o ../src/pngd.o pngtest.o: pngtest.c gcc $(FLAGS) -c pngtest.c ../src/pngd.o: ../src/pngd.c ../src/pngd.h gcc $(FLAGS) -o ../src/pngd.o -c ../src/pngd.c alttab-1.3.0/test/README000066400000000000000000000000611326360524500146240ustar00rootroot00000000000000This is a stub for possible future test facility alttab-1.3.0/test/pngtest.c000066400000000000000000000016751326360524500156100ustar00rootroot00000000000000/* * Stub for possible future test facility. * * Copyright 2017-2018 Alexander Kulak. * This file is part of alttab program. * * alttab is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * alttab is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with alttab. If not, see . * */ #include "../src/pngd.h" Display* dpy; int scr; Window root; int main(int argc, char **argv) { return !pngReadToDrawable_test ("/usr/share/icons/hicolor/48x48/apps/mkvmerge.png"); }