diff options
| -rw-r--r-- | .clang-format | 107 | ||||
| -rw-r--r-- | .gitignore | 8 | ||||
| -rw-r--r-- | .gitmodules | 3 | ||||
| -rw-r--r-- | COPYING | 10 | ||||
| -rw-r--r-- | COPYING_WESTON | 30 | ||||
| -rw-r--r-- | LICENSE | 674 | ||||
| -rw-r--r-- | Makefile | 46 | ||||
| -rw-r--r-- | README.md | 62 | ||||
| -rw-r--r-- | config.h | 165 | ||||
| -rw-r--r-- | config.mk | 2 | ||||
| -rw-r--r-- | drw.c | 71 | ||||
| -rw-r--r-- | drw.h | 37 | ||||
| -rw-r--r-- | keyboard.h | 217 | ||||
| -rw-r--r-- | main.c | 352 | ||||
| -rw-r--r-- | os-compatibility.c | 201 | ||||
| -rw-r--r-- | os-compatibility.h | 52 | ||||
| -rw-r--r-- | proto/virtual-keyboard-unstable-v1.xml | 113 | ||||
| -rw-r--r-- | proto/wlr-layer-shell-unstable-v1.xml | 325 | ||||
| -rw-r--r-- | proto/xdg-shell.xml | 1144 | ||||
| m--------- | wld | 0 |
20 files changed, 3619 insertions, 0 deletions
diff --git a/.clang-format b/.clang-format new file mode 100644 index 0000000..42385f6 --- /dev/null +++ b/.clang-format @@ -0,0 +1,107 @@ +--- +Language: Cpp +# BasedOnStyle: LLVM +AccessModifierOffset: -2 +AlignAfterOpenBracket: Align +AlignConsecutiveAssignments: false +AlignConsecutiveDeclarations: false +AlignEscapedNewlines: Right +AlignOperands: true +AlignTrailingComments: true +AllowAllParametersOfDeclarationOnNextLine: true +AllowShortBlocksOnASingleLine: false +AllowShortCaseLabelsOnASingleLine: false +AllowShortFunctionsOnASingleLine: All +AllowShortIfStatementsOnASingleLine: false +AllowShortLoopsOnASingleLine: false +AlwaysBreakAfterDefinitionReturnType: All +AlwaysBreakAfterReturnType: None +AlwaysBreakBeforeMultilineStrings: false +AlwaysBreakTemplateDeclarations: false +BinPackArguments: true +BinPackParameters: true +BraceWrapping: + AfterClass: false + AfterControlStatement: false + AfterEnum: false + AfterFunction: false + AfterNamespace: false + AfterObjCDeclaration: false + AfterStruct: false + AfterUnion: false + BeforeCatch: false + BeforeElse: false + IndentBraces: false + SplitEmptyFunction: true + SplitEmptyRecord: true + SplitEmptyNamespace: true +BreakBeforeBinaryOperators: None +BreakBeforeBraces: Attach +BreakBeforeInheritanceComma: false +BreakBeforeTernaryOperators: true +BreakConstructorInitializersBeforeComma: false +BreakConstructorInitializers: BeforeColon +BreakAfterJavaFieldAnnotations: false +BreakStringLiterals: true +ColumnLimit: 80 +CommentPragmas: '^ IWYU pragma:' +CompactNamespaces: false +ConstructorInitializerAllOnOneLineOrOnePerLine: false +ConstructorInitializerIndentWidth: 2 +ContinuationIndentWidth: 2 +Cpp11BracedListStyle: true +DerivePointerAlignment: false +DisableFormat: false +ExperimentalAutoDetectBinPacking: false +FixNamespaceComments: true +ForEachMacros: + - foreach + - Q_FOREACH + - BOOST_FOREACH +IncludeCategories: + - Regex: '^"(llvm|llvm-c|clang|clang-c)/' + Priority: 2 + - Regex: '^(<|"(gtest|gmock|isl|json)/)' + Priority: 3 + - Regex: '.*' + Priority: 1 +IncludeIsMainRegex: '(Test)?$' +IndentCaseLabels: false +IndentWidth: 2 +IndentWrappedFunctionNames: false +JavaScriptQuotes: Leave +JavaScriptWrapImports: true +KeepEmptyLinesAtTheStartOfBlocks: true +MacroBlockBegin: '' +MacroBlockEnd: '' +MaxEmptyLinesToKeep: 1 +NamespaceIndentation: None +ObjCBlockIndentWidth: 2 +ObjCSpaceAfterProperty: false +ObjCSpaceBeforeProtocolList: true +PenaltyBreakAssignment: 2 +PenaltyBreakBeforeFirstCallParameter: 19 +PenaltyBreakComment: 300 +PenaltyBreakFirstLessLess: 120 +PenaltyBreakString: 1000 +PenaltyExcessCharacter: 1000000 +PenaltyReturnTypeOnItsOwnLine: 60 +PointerAlignment: Right +ReflowComments: true +SortIncludes: true +SortUsingDeclarations: true +SpaceAfterCStyleCast: false +SpaceAfterTemplateKeyword: true +SpaceBeforeAssignmentOperators: true +SpaceBeforeParens: ControlStatements +SpaceInEmptyParentheses: false +SpacesBeforeTrailingComments: 1 +SpacesInAngles: false +SpacesInContainerLiterals: true +SpacesInCStyleCastParentheses: false +SpacesInParentheses: false +SpacesInSquareBrackets: false +Standard: Cpp11 +TabWidth: 2 +UseTab: ForIndentation +... diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..3af2a48 --- /dev/null +++ b/.gitignore @@ -0,0 +1,8 @@ +*~ +*\#* +*.o +*-client-protocol.h +include/config.h +.gdb_history +*.log +wvkbd diff --git a/.gitmodules b/.gitmodules new file mode 100644 index 0000000..c1792d8 --- /dev/null +++ b/.gitmodules @@ -0,0 +1,3 @@ +[submodule "wld"] + path = wld + url = https://github.com/michaelforney/wld.git diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..ea160ee --- /dev/null +++ b/COPYING @@ -0,0 +1,10 @@ +Copyright © 2020 John Sullivan <jsullivan@csumb.edu> + +os-compatibility.h and os-compatibility.c are licensed by the Wayland project +under the MIT/X license. See more details in COPYING_WESTON. + +wld submodule is licensed by Michael Forney under the MIT license, see COPYING +in `wld/`. + +All other code in this repository falls under the terms of the GPL v3.0 license, +which can be found in LICENSE. \ No newline at end of file diff --git a/COPYING_WESTON b/COPYING_WESTON new file mode 100644 index 0000000..d65f5d3 --- /dev/null +++ b/COPYING_WESTON @@ -0,0 +1,30 @@ +Copyright © 2008-2012 Kristian Høgsberg +Copyright © 2010-2012 Intel Corporation +Copyright © 2010-2011 Benjamin Franzke +Copyright © 2011-2012 Collabora, Ltd. +Copyright © 2010 Red Hat <mjg@redhat.com> + +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 (including the next +paragraph) 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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No Surrender of Others' Freedom. + + If conditions are imposed on you (whether by court order, agreement or +otherwise) that contradict the conditions of this License, they do not +excuse you from the conditions of this License. If you cannot convey a +covered work so as to satisfy simultaneously your obligations under this +License and any other pertinent obligations, then as a consequence you may +not convey it at all. For example, if you agree to terms that obligate you +to collect a royalty for further conveying from those to whom you convey +the Program, the only way you could satisfy both those terms and this +License would be to refrain entirely from conveying the Program. + + 13. 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If the +Program specifies that a certain numbered version of the GNU General +Public License "or any later version" applies to it, you have the +option of following the terms and conditions either of that numbered +version or of any later version published by the Free Software +Foundation. If the Program does not specify a version number of the +GNU General Public License, you may choose any version ever published +by the Free Software Foundation. + + If the Program specifies that a proxy can decide which future +versions of the GNU General Public License can be used, that proxy's +public statement of acceptance of a version permanently authorizes you +to choose that version for the Program. + + Later license versions may give you additional or different +permissions. However, no additional obligations are imposed on any +author or copyright holder as a result of your choosing to follow a +later version. + + 15. Disclaimer of Warranty. + + THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY +APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT +HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY +OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, +THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM +IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF +ALL NECESSARY SERVICING, REPAIR OR CORRECTION. + + 16. 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Interpretation of Sections 15 and 16. + + 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. + + <one line to give the program's name and a brief idea of what it does.> + Copyright (C) <year> <name of author> + + 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 <https://www.gnu.org/licenses/>. + +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: + + <program> Copyright (C) <year> <name of author> + 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 +<https://www.gnu.org/licenses/>. + + 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 +<https://www.gnu.org/licenses/why-not-lgpl.html>. diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..29beffc --- /dev/null +++ b/Makefile @@ -0,0 +1,46 @@ +include config.mk + +SRC=. +WLDSRC=wld + +PKGS = fontconfig wayland-client xkbcommon pixman-1 + +WVKBD_SOURCES += $(wildcard $(SRC)/*.c) +WVKBD_HEADERS += $(wildcard $(SRC)/*.h) + +CFLAGS += -std=gnu99 -Wall -g -DWITH_WAYLAND_SHM +CFLAGS += $(shell pkg-config --cflags $(PKGS)) +LDFLAGS =wld/libwld.a $(shell pkg-config --libs $(PKGS)) -lm -lutil + +WAYLAND_HEADERS = $(wildcard proto/*.xml) + +HDRS = $(WAYLAND_HEADERS:.xml=-client-protocol.h) +WAYLAND_SRC = $(HDRS:.h=.c) +SOURCES = $(WVKBD_SOURCES) $(WAYLAND_SRC) + +OBJECTS = $(SOURCES:.c=.o) + +all: wld wvkbd + +proto/%-client-protocol.c: proto/%.xml + wayland-scanner code < $? > $@ + +proto/%-client-protocol.h: proto/%.xml + wayland-scanner client-header < $? > $@ + +$(OBJECTS): $(HDRS) $(WVKBD_HEADERS) + +wvkbd: $(OBJECTS) + $(CC) -o wvkbd $(OBJECTS) $(LDFLAGS) + +wld: wld/libwld.a + +wld/libwld.a: + $(MAKE) -C wld ENABLE_DRM=0 + +clean: + rm -f $(OBJECTS) $(HDRS) $(WAYLAND_SRC) wvkbd + $(MAKE) -C wld clean + +format: + clang-format -i $(WVKBD_SOURCES) $(WVKBD_HEADERS) diff --git a/README.md b/README.md new file mode 100644 index 0000000..b823c30 --- /dev/null +++ b/README.md @@ -0,0 +1,62 @@ +# wvkbd - On-screen keyboard for wlroots that sucks less + +<img src="https://raw.githubusercontent.com/jjsullivan5196/wvkbd/master/contrib/grab.png" width=350 /> + +This project aims to deliver a minimum implementation of a wlroots on-screen +keyboard in legible C. This will **only** be a keyboard, not a feedback buzzer, +led blinker, or anything that requires more than what's needed to input text +quickly. The end product should be a static codebase that can be patched to add +new features. + +At the moment work still needs to be done to make the keyboard fully functional +and determine a minimum feature set. As of now, the following works: + +## Features + + - Typing, modifier locking, layout switching + - Positive visual feedback on key presses + - Custom layouts + - Custom color schemes + +There are some relatively critical areas that still need work: + + - Proper drawing of font glyphs/fontconfig alternatives (unknown glyphs for the + configured font are not drawn) + - Make sure the virtual input method in wayland is working as best as it can + - Customize keyboard window docking + - Nicer layout drawing/padding + - Determine if some dependencies are really needed (fontconfig is VERY + annoying, and wld may not be strictly necessary) + +And some nice to haves: + + - Daemon mode (hide/show keyboard on signals) + - Support for input method protocol in wayland, ability to respond to text + fields + - Alt input modes for things like emojis + - Typical international layouts in the repository + +Of course there's probably some more I'm forgetting, everything here is very +much early WIP so things will change very quickly. + +## Install + +You'll need the following developer packages + + - fontconfig + - wayland-client + - xkbcommon + - pixman + +After cloning this repo, run `git submodules update --init --recursive` + +Make any customizations you would like in `config.h` and run `make`, then `./wvkbd` + +## Contribute + +Any contributions are welcome, please tell me what I did wrong in issues or +PRs. I could also use some nice branding if that tickles your fancy. + +For code contributions, all I ask for now is you run `make format` (requires +`clang-format`) before opening a PR and include as much relevant detail as +possible. diff --git a/config.h b/config.h new file mode 100644 index 0000000..b460212 --- /dev/null +++ b/config.h @@ -0,0 +1,165 @@ +/* constants */ + +/* how tall the keyboard should be */ +#define KBD_PIXEL_HEIGHT 155 + +/* if your layout leaves an empty margin, increase this to fix it */ +#define KBD_PIXEL_OVERSCAN_WIDTH 0 + +/* rows for each layout */ +#define KBD_ROWS 4 + +/* columns for each layout (maximum keys per row) */ +#define KBD_COLS 10 + +/* spacing between keys */ +#define KBD_KEY_BORDER 1 + +#include "keyboard.h" + +/* font (see `man fonts-conf` for instructions) */ +static const char *fc_font_pattern = + "monospace:size=14:antialias=true:hinting=true"; + +/* layout declarations */ +enum layout_names { + Basic = 0, + Special, + NumLayouts, +}; + +static struct key keys_basic[], keys_special[]; + +static struct layout layouts[NumLayouts] = { + [Basic] = {keys_basic}, + [Special] = {keys_special}, +}; + +/* keyboard settings */ +static struct kbd keyboard = { + /* default layout */ + .layout = &layouts[Basic], + .scheme = + { + /* colors */ + .bg = {.bgra = {15, 15, 15, 225}}, + .fg = {.bgra = {45, 45, 45, 225}}, + .high = {.bgra = {100, 100, 100, 225}}, + .text = {.color = UINT32_MAX}, + }, +}; + +/* key layouts + * + * define keys like: + * + * `{ + * "label", + * "SHIFT_LABEL", + * 1, + * [Code, Mod, Layout, Last], + * [KEY_CODE, Modifier], + * [&layout] + * },` + * + * - label: normal label for key + * + * - shift_label: label for key in shifted (uppercase) layout + * + * - width: column width of key + * + * - type: what kind of action this key peforms (emit keycode, toggle modifier, + * switch layout, or end the layout) + * + * - code: key scancode or modifier name (see + * `/usr/include/linux/input-event-codes.h` for scancode names, and + * `keyboard.h` for modifiers) + * + * - layout: layout to switch to when key is pressed + */ +static struct key keys_basic[] = { + {"q", "Q", 1, Code, KEY_Q}, + {"w", "W", 1, Code, KEY_W}, + {"e", "E", 1, Code, KEY_E}, + {"r", "R", 1, Code, KEY_R}, + {"t", "T", 1, Code, KEY_T}, + {"y", "Y", 1, Code, KEY_Y}, + {"u", "U", 1, Code, KEY_U}, + {"i", "I", 1, Code, KEY_I}, + {"o", "O", 1, Code, KEY_O}, + {"p", "P", 1, Code, KEY_P}, + + {"a", "A", 1, Code, KEY_A}, + {"s", "S", 1, Code, KEY_S}, + {"d", "D", 1, Code, KEY_D}, + {"f", "F", 1, Code, KEY_F}, + {"g", "G", 1, Code, KEY_G}, + {"h", "H", 1, Code, KEY_H}, + {"j", "J", 1, Code, KEY_J}, + {"k", "K", 1, Code, KEY_K}, + {"l", "L", 1, Code, KEY_L}, + {";", ":", 1, Code, KEY_SEMICOLON}, + + {"z", "Z", 1, Code, KEY_Z}, + {"x", "X", 1, Code, KEY_X}, + {"c", "C", 1, Code, KEY_C}, + {"v", "V", 1, Code, KEY_V}, + {"b", "B", 1, Code, KEY_B}, + {"n", "N", 1, Code, KEY_N}, + {"m", "M", 1, Code, KEY_M}, + {"Tab", "Tab", 1, Code, KEY_TAB}, + {"Bk", "Bk", 1, Code, KEY_BACKSPACE}, + {"Ret", "Ret", 1, Code, KEY_ENTER}, + + {"Sft", "Sft", 1, Mod, Shift}, + {"Sp", "Sp", 1, Mod, Super}, + {"Alt", "Alt", 1, Mod, AltGr}, + {"", "", 3, Code, KEY_SPACE}, + {"Esc", "Esc", 1, Code, KEY_ESC}, + {"Ctl", "Ctl", 1, Mod, Ctrl}, + {"Sm", "Sm", 2, Layout, 0, &layouts[Special]}, + + /* end of layout */ + {"", "", 0, Last}, +}; + +static struct key keys_special[] = { + {"1", "!", 1, Code, KEY_1}, + {"2", "@", 1, Code, KEY_2}, + {"3", "#", 1, Code, KEY_3}, + {"4", "$", 1, Code, KEY_4}, + {"5", "%", 1, Code, KEY_5}, + {"6", "^", 1, Code, KEY_6}, + {"7", "&", 1, Code, KEY_7}, + {"8", "*", 1, Code, KEY_8}, + {"9", "(", 1, Code, KEY_9}, + {"0", ")", 1, Code, KEY_0}, + + {"'", "\"", 1, Code, KEY_APOSTROPHE}, + {"`", "~", 1, Code, KEY_GRAVE}, + {"-", "_", 1, Code, KEY_MINUS}, + {"=", "+", 1, Code, KEY_EQUAL}, + {"[", "{", 1, Code, KEY_LEFTBRACE}, + {"]", "}", 1, Code, KEY_RIGHTBRACE}, + {",", "<", 1, Code, KEY_COMMA}, + {".", ">", 1, Code, KEY_DOT}, + {"/", "?", 1, Code, KEY_SLASH}, + {"\\", "|", 1, Code, KEY_BACKSLASH}, + + {"↑", "↑", 1, Code, KEY_UP}, + {"↓", "↓", 1, Code, KEY_DOWN}, + {"←", "←", 1, Code, KEY_LEFT}, + {"→", "→", 1, Code, KEY_RIGHT}, + {"Sp", "Sp", 1, Mod, Super}, + {"Alt", "Alt", 1, Mod, AltGr}, + {"Ctl", "Ctl", 1, Mod, Ctrl}, + {"Sft", "Sft", 1, Mod, Shift}, + + {"Ret", "Ret", 1, Code, KEY_ENTER}, + {"Bk", "Bk", 1, Code, KEY_BACKSPACE}, + {"", "", 3, Code, KEY_SPACE}, + {"Bsc", "Bsc", 2, Layout, 0, &layouts[Basic]}, + + /* end of layout */ + {"", "", 0, Last}, +}; diff --git a/config.mk b/config.mk new file mode 100644 index 0000000..ab39d6d --- /dev/null +++ b/config.mk @@ -0,0 +1,2 @@ +VERSION = 0.0.1 +CFLAGS = -DVERSION=\"$(VERSION)\" -D_XOPEN_SOURCE=700 diff --git a/drw.c b/drw.c new file mode 100644 index 0000000..fef0686 --- /dev/null +++ b/drw.c @@ -0,0 +1,71 @@ +#include "wld/wayland.h" +#include "wld/wld.h" +#include <wayland-client.h> + +#include "drw.h" + +void +drw_init(struct drw *d, const char *fc_pattern, struct wl_display *dpy, + void *iface) { + d->wld = wld_wayland_create_context(dpy, WLD_ANY, iface); + d->fctx = wld_font_create_context(); + d->font = wld_font_open_name(d->fctx, fc_pattern); +} + +void +drwsurf_init(struct drw *d, struct drwsurf *ds, struct wl_surface *surf) { + ds->ctx = d; + ds->surf = surf; + ds->render = wld_create_renderer(d->wld); +} + +void +drwsurf_resize(struct drwsurf *ds, uint32_t w, uint32_t h) { + union wld_object obj; + + if (ds->buf) { + wld_buffer_unreference(ds->buf); + ds->buf = NULL; + ds->ref = NULL; + } + + ds->w = w; + ds->h = h; + + ds->buf = wld_create_buffer(ds->ctx->wld, w, h, WLD_FORMAT_ARGB8888, 0); + wld_set_target_buffer(ds->render, ds->buf); + + wld_export(ds->buf, WLD_WAYLAND_OBJECT_BUFFER, &obj); + ds->ref = obj.ptr; +} + +static void surface_frame_callback(void *data, struct wl_callback *cb, + uint32_t time); + +static struct wl_callback_listener frame_listener = {.done = + surface_frame_callback}; + +void +drwsurf_flip(struct drwsurf *ds) { + ds->cb = wl_surface_frame(ds->surf); + wl_callback_add_listener(ds->cb, &frame_listener, (void *)ds); + + if (ds->dirty) { + wl_surface_damage(ds->surf, 0, 0, ds->w, ds->h); + wld_flush(ds->render); + wld_set_target_buffer(ds->render, ds->buf); + ds->dirty = false; + } + + wl_surface_attach(ds->surf, ds->ref, 0, 0); + wl_surface_commit(ds->surf); +} + +void +surface_frame_callback(void *data, struct wl_callback *cb, uint32_t time) { + struct drwsurf *ds = (struct drwsurf *)data; + wl_callback_destroy(cb); + ds->cb = NULL; + + drwsurf_flip(ds); +} diff --git a/drw.h b/drw.h new file mode 100644 index 0000000..15abbb7 --- /dev/null +++ b/drw.h @@ -0,0 +1,37 @@ +#ifndef __DRW_H +#define __DRW_H + +struct drw; +struct drwsurf; + +void drw_init(struct drw *d, const char *fc_pattern, struct wl_display *dpy, + void *iface); +void drwsurf_init(struct drw *d, struct drwsurf *ds, struct wl_surface *surf); +void drwsurf_resize(struct drwsurf *ds, uint32_t w, uint32_t h); +void drwsurf_flip(struct drwsurf *ds); + +struct drw { + struct wld_context *wld; + struct wld_font_context *fctx; + struct wld_font *font; +}; + +struct drwsurf { + uint32_t w, h; + bool dirty; + + struct drw *ctx; + struct wl_surface *surf; + struct wld_renderer *render; + struct wld_buffer *buf; + struct wl_buffer *ref; + + struct wl_callback *cb; +}; + +typedef union { + uint8_t bgra[4]; + uint32_t color; +} Color; + +#endif diff --git a/keyboard.h b/keyboard.h new file mode 100644 index 0000000..f370ba1 --- /dev/null +++ b/keyboard.h @@ -0,0 +1,217 @@ +/* clang-format off */ +#define KBD_POINTS KBD_ROWS * KBD_COLS +/* clang-format on */ + +enum key_type; +enum key_modifier_type; +struct clr_scheme; +struct key; +struct layout; +struct kbd; + +enum key_type { + Pad = 0, + Code, + Mod, + Layout, + Last, +}; + +/* Modifiers passed to the virtual_keyboard protocol. They are based on + * wayland's wl_keyboard, which doesn't document them. + */ +enum key_modifier_type { + NoMod = 0, + Shift = 1, + CapsLock = 2, + Ctrl = 4, + Super = 64, + AltGr = 128, +}; + +struct clr_scheme { + Color fg; + Color bg; + Color high; + Color text; +}; + +struct key { + const char *label; + const char *shift_label; + const uint8_t width; + const enum key_type type; + + const uint32_t code; + struct layout *layout; + + uint8_t col, row; +}; + +struct layout { + struct key *keys; + struct key *gridpoints[KBD_POINTS]; +}; + +struct kbd { + struct layout *layout; + struct clr_scheme scheme; + + uint32_t w, h; + uint32_t kw, kh; + uint8_t mods; + struct key *last_press; + + struct drwsurf *surf; + struct zwp_virtual_keyboard_v1 *vkbd; +}; + +static inline void draw_inset(struct drwsurf *d, uint32_t x, uint32_t y, + uint32_t width, uint32_t height, uint32_t border, + uint32_t color); + +static void kbd_init_layout(struct layout *l); +static struct key *kbd_get_key(struct kbd *kb, uint32_t x, uint32_t y); +static void kbd_unpress_key(struct kbd *kb, uint32_t time); +static void kbd_press_key(struct kbd *kb, struct key *k, uint32_t time); +static void kbd_draw_key(struct kbd *kb, struct key *k, bool pressed); +static void kbd_draw_key(struct kbd *kb, struct key *k, bool pressed); +static void kbd_draw_layout(struct kbd *kb); +static void kbd_resize(struct kbd *kb, uint32_t w, uint32_t h); + +void +kbd_init_layout(struct layout *l) { + uint8_t i = 0, width = 0, ncol = 0, col = 0, row = 0; + + struct key *k = l->keys; + struct key **point = l->gridpoints, + **end_point = l->gridpoints + (KBD_POINTS); + + memset(point, 0, sizeof(uint8_t) * KBD_POINTS); + + while ((k->type != Last) && (point < end_point)) { + width = k->width; + ncol = col + width; + + if (ncol > KBD_COLS) { + width = KBD_COLS - col; + col = 0; + row += 1; + + for (i = 0; (i < width) && (point < end_point); i++, point++) { + } + continue; + } + + k->col = col; + k->row = row; + col = ncol; + + for (i = 0; (i < width) && (point < end_point); i++, point++) { + *point = k; + } + + k++; + } +} + +struct key * +kbd_get_key(struct kbd *kb, uint32_t x, uint32_t y) { + struct layout *l = kb->layout; + uint32_t col = KBD_COLS * ((float)x / (float)kb->w); + uint32_t row = KBD_ROWS * ((float)y / (float)kb->h); + + return l->gridpoints[(row * KBD_COLS) + col]; +} + +void +kbd_unpress_key(struct kbd *kb, uint32_t time) { + if (kb->last_press) { + kbd_draw_key(kb, kb->last_press, false); + kb->surf->dirty = true; + + zwp_virtual_keyboard_v1_key(kb->vkbd, time, kb->last_press->code, + WL_KEYBOARD_KEY_STATE_RELEASED); + kb->last_press = NULL; + } +} + +void +kbd_press_key(struct kbd *kb, struct key *k, uint32_t time) { + switch (k->type) { + case Code: + kb->last_press = k; + kbd_draw_key(kb, k, true); + zwp_virtual_keyboard_v1_key(kb->vkbd, time, kb->last_press->code, + WL_KEYBOARD_KEY_STATE_PRESSED); + break; + case Mod: + kb->mods ^= k->code; + if (k->code == Shift) { + kbd_draw_layout(kb); + } + kbd_draw_key(kb, k, kb->mods & k->code); + zwp_virtual_keyboard_v1_modifiers(kb->vkbd, kb->mods, 0, 0, 0); + break; + case Layout: + kb->layout = k->layout; + kbd_draw_layout(kb); + default: + break; + } + + kb->surf->dirty = true; +} + +void +kbd_draw_key(struct kbd *kb, struct key *k, bool pressed) { + struct drwsurf *d = kb->surf; + const char *label = (kb->mods & Shift) ? k->shift_label : k->label; + Color *fill = pressed ? &kb->scheme.high : &kb->scheme.fg; + uint32_t x = k->col * kb->kw, y = k->row * kb->kh, width = k->width * kb->kw; + + draw_inset(d, x, y, width, kb->kh, KBD_KEY_BORDER, fill->color); + wld_draw_text(d->render, d->ctx->font, kb->scheme.text.color, + x + (width * 0.35), y + (kb->kh / 2), label, -1, NULL); +} + +void +kbd_draw_layout(struct kbd *kb) { + struct drwsurf *d = kb->surf; + struct key *next_key = kb->layout->keys; + bool pressed = false; + + wld_fill_rectangle(d->render, kb->scheme.bg.color, 0, 0, kb->w, kb->h); + + while (next_key->type != Last) { + if (next_key->type == Pad) { + next_key++; + continue; + } + pressed = next_key->type == Mod && kb->mods & next_key->code; + kbd_draw_key(kb, next_key, pressed); + next_key++; + } +} + +void +kbd_resize(struct kbd *kb, uint32_t w, uint32_t h) { + struct drwsurf *d = kb->surf; + + kb->w = w; + kb->h = h; + + kb->kw = (float)w / (float)KBD_COLS; + kb->kh = (float)h / (float)KBD_ROWS; + + drwsurf_resize(d, w, h); + kbd_draw_layout(kb); + d->dirty = true; +} + +void +draw_inset(struct drwsurf *d, uint32_t x, uint32_t y, uint32_t width, + uint32_t height, uint32_t border, uint32_t color) { + wld_fill_rectangle(d->render, color, x + border, y + border, width - border, + height - border); +} diff --git a/main.c b/main.c new file mode 100644 index 0000000..45ec8fc --- /dev/null +++ b/main.c @@ -0,0 +1,352 @@ +#include "proto/virtual-keyboard-unstable-v1-client-protocol.h" +#include "proto/wlr-layer-shell-unstable-v1-client-protocol.h" +#include "wld/wayland.h" +#include "wld/wld.h" +#include <linux/input-event-codes.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/mman.h> +#include <wayland-client.h> + +#include "drw.h" +#include "keymap.h" +#include "os-compatibility.h" + +/* lazy die macro */ +#define die(...) \ + fprintf(stderr, __VA_ARGS__); \ + exit(0) + +/* client state */ +static const char *namespace = "wlroots"; +static struct wl_display *display; +static struct wl_compositor *compositor; +static struct wl_seat *seat; +static struct wl_shm *shm; +static struct wl_pointer *pointer; +static struct wl_touch *touch; +static struct wl_output *wl_output; +static struct wl_surface *wl_surface; +static struct zwlr_layer_shell_v1 *layer_shell; +static struct zwlr_layer_surface_v1 *layer_surface; +static struct zwp_virtual_keyboard_manager_v1 *vkbd_mgr; +static uint32_t output = UINT32_MAX; + +/* drawing */ +static struct drw draw_ctx; +static struct drwsurf draw_surf; + +/* layer surface parameters */ +static uint32_t layer = ZWLR_LAYER_SHELL_V1_LAYER_TOP; +static uint32_t anchor = ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM | + ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT | + ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT; + +/* application state */ +static bool run_display = true; +static int cur_x = -1, cur_y = -1; + +/* event handler prototypes */ +static void wl_pointer_enter(void *data, struct wl_pointer *wl_pointer, + uint32_t serial, struct wl_surface *surface, + wl_fixed_t surface_x, wl_fixed_t surface_y); +static void wl_pointer_leave(void *data, struct wl_pointer *wl_pointer, + uint32_t serial, struct wl_surface *surface); +static void wl_pointer_motion(void *data, struct wl_pointer *wl_pointer, + uint32_t time, wl_fixed_t surface_x, + wl_fixed_t surface_y); +static void wl_pointer_button(void *data, struct wl_pointer *wl_pointer, + uint32_t serial, uint32_t time, uint32_t button, + uint32_t state); + +static void wl_touch_down(void *data, struct wl_touch *wl_touch, + uint32_t serial, uint32_t time, + struct wl_surface *surface, int32_t id, wl_fixed_t x, + wl_fixed_t y); +static void wl_touch_up(void *data, struct wl_touch *wl_touch, uint32_t serial, + uint32_t time, int32_t id); +static void wl_touch_motion(void *data, struct wl_touch *wl_touch, + uint32_t time, int32_t id, wl_fixed_t x, + wl_fixed_t y); +static void wl_touch_frame(void *data, struct wl_touch *wl_touch); +static void wl_touch_cancel(void *data, struct wl_touch *wl_touch); +static void wl_touch_shape(void *data, struct wl_touch *wl_touch, int32_t id, + wl_fixed_t major, wl_fixed_t minor); +static void wl_touch_orientation(void *data, struct wl_touch *wl_touch, + int32_t id, wl_fixed_t orientation); + +static void seat_handle_capabilities(void *data, struct wl_seat *wl_seat, + enum wl_seat_capability caps); +static void seat_handle_name(void *data, struct wl_seat *wl_seat, + const char *name); + +static void handle_global(void *data, struct wl_registry *registry, + uint32_t name, const char *interface, + uint32_t version); +static void handle_global_remove(void *data, struct wl_registry *registry, + uint32_t name); + +static void layer_surface_configure(void *data, + struct zwlr_layer_surface_v1 *surface, + uint32_t serial, uint32_t w, uint32_t h); +static void layer_surface_closed(void *data, + struct zwlr_layer_surface_v1 *surface); + +/* event handlers */ +static const struct wl_pointer_listener pointer_listener = { + .enter = wl_pointer_enter, + .leave = wl_pointer_leave, + .motion = wl_pointer_motion, + .button = wl_pointer_button, +}; + +static const struct wl_touch_listener touch_listener = { + .down = wl_touch_down, + .up = wl_touch_up, + .motion = wl_touch_motion, + .frame = wl_touch_frame, + .cancel = wl_touch_cancel, + .shape = wl_touch_shape, + .orientation = wl_touch_orientation, +}; + +static const struct wl_seat_listener seat_listener = { + .capabilities = seat_handle_capabilities, + .name = seat_handle_name, +}; + +static const struct wl_registry_listener registry_listener = { + .global = handle_global, + .global_remove = handle_global_remove, +}; + +static const struct zwlr_layer_surface_v1_listener layer_surface_listener = { + .configure = layer_surface_configure, + .closed = layer_surface_closed, +}; + +#include "config.h" + +void +wl_touch_down(void *data, struct wl_touch *wl_touch, uint32_t serial, + uint32_t time, struct wl_surface *surface, int32_t id, + wl_fixed_t x, wl_fixed_t y) { + struct key *next_key; + uint32_t touch_x, touch_y; + + touch_x = wl_fixed_to_int(x); + touch_y = wl_fixed_to_int(y); + + kbd_unpress_key(&keyboard, time); + + next_key = kbd_get_key(&keyboard, touch_x, touch_y); + if (next_key) { + kbd_press_key(&keyboard, next_key, time); + } +} + +void +wl_touch_up(void *data, struct wl_touch *wl_touch, uint32_t serial, + uint32_t time, int32_t id) { + kbd_unpress_key(&keyboard, time); +} + +void +wl_touch_motion(void *data, struct wl_touch *wl_touch, uint32_t time, + int32_t id, wl_fixed_t x, wl_fixed_t y) { + kbd_unpress_key(&keyboard, time); +} + +void +wl_touch_frame(void *data, struct wl_touch *wl_touch) {} + +void +wl_touch_cancel(void *data, struct wl_touch *wl_touch) {} + +void +wl_touch_shape(void *data, struct wl_touch *wl_touch, int32_t id, + wl_fixed_t major, wl_fixed_t minor) {} + +void +wl_touch_orientation(void *data, struct wl_touch *wl_touch, int32_t id, + wl_fixed_t orientation) {} + +void +wl_pointer_enter(void *data, struct wl_pointer *wl_pointer, uint32_t serial, + struct wl_surface *surface, wl_fixed_t surface_x, + wl_fixed_t surface_y) {} + +void +wl_pointer_leave(void *data, struct wl_pointer *wl_pointer, uint32_t serial, + struct wl_surface *surface) { + cur_x = cur_y = -1; +} + +void +wl_pointer_motion(void *data, struct wl_pointer *wl_pointer, uint32_t time, + wl_fixed_t surface_x, wl_fixed_t surface_y) { + cur_x = wl_fixed_to_int(surface_x); + cur_y = wl_fixed_to_int(surface_y); + + kbd_unpress_key(&keyboard, time); +} + +void +wl_pointer_button(void *data, struct wl_pointer *wl_pointer, uint32_t serial, + uint32_t time, uint32_t button, uint32_t state) { + struct key *next_key; + bool press = state == WL_POINTER_BUTTON_STATE_PRESSED; + + kbd_unpress_key(&keyboard, time); + + if (press && cur_x >= 0 && cur_y >= 0) { + next_key = kbd_get_key(&keyboard, cur_x, cur_y); + if (next_key) { + kbd_press_key(&keyboard, next_key, time); + } + } +} + +void +seat_handle_capabilities(void *data, struct wl_seat *wl_seat, + enum wl_seat_capability caps) { + if ((caps & WL_SEAT_CAPABILITY_POINTER)) { + pointer = wl_seat_get_pointer(wl_seat); + wl_pointer_add_listener(pointer, &pointer_listener, NULL); + } + if ((caps & WL_SEAT_CAPABILITY_TOUCH)) { + touch = wl_seat_get_touch(wl_seat); + wl_touch_add_listener(touch, &touch_listener, NULL); + } +} + +void +seat_handle_name(void *data, struct wl_seat *wl_seat, const char *name) {} + +void +handle_global(void *data, struct wl_registry *registry, uint32_t name, + const char *interface, uint32_t version) { + if (strcmp(interface, wl_compositor_interface.name) == 0) { + compositor = wl_registry_bind(registry, name, &wl_compositor_interface, 1); + } else if (strcmp(interface, wl_shm_interface.name) == 0) { + shm = wl_registry_bind(registry, name, &wl_shm_interface, 1); + } else if (strcmp(interface, "wl_output") == 0) { + if (output != UINT32_MAX) { + if (!wl_output) { + wl_output = wl_registry_bind(registry, name, &wl_output_interface, 1); + } else { + output--; + } + } + } else if (strcmp(interface, wl_seat_interface.name) == 0) { + seat = wl_registry_bind(registry, name, &wl_seat_interface, 1); + wl_seat_add_listener(seat, &seat_listener, NULL); + } else if (strcmp(interface, zwlr_layer_shell_v1_interface.name) == 0) { + layer_shell = + wl_registry_bind(registry, name, &zwlr_layer_shell_v1_interface, 1); + } else if (strcmp(interface, + zwp_virtual_keyboard_manager_v1_interface.name) == 0) { + vkbd_mgr = wl_registry_bind(registry, name, + &zwp_virtual_keyboard_manager_v1_interface, 1); + } +} + +void +handle_global_remove(void *data, struct wl_registry *registry, uint32_t name) {} + +void +layer_surface_configure(void *data, struct zwlr_layer_surface_v1 *surface, + uint32_t serial, uint32_t w, uint32_t h) { + kbd_resize(&keyboard, w + KBD_PIXEL_OVERSCAN_WIDTH, h); + zwlr_layer_surface_v1_ack_configure(surface, serial); +} + +void +layer_surface_closed(void *data, struct zwlr_layer_surface_v1 *surface) { + zwlr_layer_surface_v1_destroy(surface); + wl_surface_destroy(draw_surf.surf); + run_display = false; +} + +int +main(int argc, char **argv) { + uint8_t i; + int keymap_fd = os_create_anonymous_file(keymap_size); + + /* connect to compositor */ + display = wl_display_connect(NULL); + if (display == NULL) { + die("Failed to create display\n"); + } + + /* acquire state */ + struct wl_registry *registry = wl_display_get_registry(display); + wl_registry_add_listener(registry, ®istry_listener, NULL); + wl_display_roundtrip(display); + + if (compositor == NULL) { + die("wl_compositor not available\n"); + } + if (shm == NULL) { + die("wl_shm not available\n"); + } + if (layer_shell == NULL) { + die("layer_shell not available\n"); + } + if (vkbd_mgr == NULL) { + die("virtual_keyboard_manager not available\n"); + } + + /* create vkbd */ + keyboard.vkbd = + zwp_virtual_keyboard_manager_v1_create_virtual_keyboard(vkbd_mgr, seat); + + /* upload keymap */ + if (keymap_fd < 0) { + die("could not create keymap fd\n"); + } + void *ptr = + mmap(NULL, keymap_size, PROT_READ | PROT_WRITE, MAP_SHARED, keymap_fd, 0); + if (ptr == (void *)-1) { + die("could not map keymap data\n"); + } + strcpy(ptr, keymap_str); + zwp_virtual_keyboard_v1_keymap( + keyboard.vkbd, WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1, keymap_fd, keymap_size); + + /* init layouts */ + for (i = 0; i < NumLayouts; i++) { + if (layouts[i].keys) { + kbd_init_layout(&layouts[i]); + } + } + + /* assign kbd state */ + keyboard.surf = &draw_surf; + + /* create surface */ + wl_surface = wl_compositor_create_surface(compositor); + drw_init(&draw_ctx, fc_font_pattern, display, shm); + drwsurf_init(&draw_ctx, &draw_surf, wl_surface); + + layer_surface = zwlr_layer_shell_v1_get_layer_surface( + layer_shell, draw_surf.surf, wl_output, layer, namespace); + + zwlr_layer_surface_v1_set_size(layer_surface, 0, KBD_PIXEL_HEIGHT); + zwlr_layer_surface_v1_set_anchor(layer_surface, anchor); + zwlr_layer_surface_v1_set_exclusive_zone(layer_surface, KBD_PIXEL_HEIGHT); + zwlr_layer_surface_v1_set_keyboard_interactivity(layer_surface, false); + zwlr_layer_surface_v1_add_listener(layer_surface, &layer_surface_listener, + NULL); + wl_surface_commit(draw_surf.surf); + + /* flush requests and start drawing */ + wl_display_roundtrip(display); + drwsurf_flip(&draw_surf); + + while (wl_display_dispatch(display) != -1 && run_display) { + } + + return 0; +} diff --git a/os-compatibility.c b/os-compatibility.c new file mode 100644 index 0000000..93f744b --- /dev/null +++ b/os-compatibility.c @@ -0,0 +1,201 @@ +/* + * Copyright © 2012 Collabora, Ltd. + * + * 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 (including the + * next paragraph) 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. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <errno.h> +#include <fcntl.h> +#include <stdlib.h> +#include <string.h> +#include <sys/epoll.h> +#include <sys/socket.h> +#include <sys/types.h> +#include <unistd.h> + +#include "os-compatibility.h" + +int +os_fd_set_cloexec(int fd) { + long flags; + + if (fd == -1) + return -1; + + flags = fcntl(fd, F_GETFD); + if (flags == -1) + return -1; + + if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) == -1) + return -1; + + return 0; +} + +static int +set_cloexec_or_close(int fd) { + if (os_fd_set_cloexec(fd) != 0) { + close(fd); + return -1; + } + return fd; +} + +int +os_socketpair_cloexec(int domain, int type, int protocol, int *sv) { + int ret; + +#ifdef SOCK_CLOEXEC + ret = socketpair(domain, type | SOCK_CLOEXEC, protocol, sv); + if (ret == 0 || errno != EINVAL) + return ret; +#endif + + ret = socketpair(domain, type, protocol, sv); + if (ret < 0) + return ret; + + sv[0] = set_cloexec_or_close(sv[0]); + sv[1] = set_cloexec_or_close(sv[1]); + + if (sv[0] != -1 && sv[1] != -1) + return 0; + + close(sv[0]); + close(sv[1]); + return -1; +} + +int +os_epoll_create_cloexec(void) { + int fd; + +#ifdef EPOLL_CLOEXEC + fd = epoll_create1(EPOLL_CLOEXEC); + if (fd >= 0) + return fd; + if (errno != EINVAL) + return -1; +#endif + + fd = epoll_create(1); + return set_cloexec_or_close(fd); +} + +static int +create_tmpfile_cloexec(char *tmpname) { + int fd; + +#ifdef HAVE_MKOSTEMP + fd = mkostemp(tmpname, O_CLOEXEC); + if (fd >= 0) + unlink(tmpname); +#else + fd = mkstemp(tmpname); + if (fd >= 0) { + fd = set_cloexec_or_close(fd); + unlink(tmpname); + } +#endif + + return fd; +} + +/* + * Create a new, unique, anonymous file of the given size, and + * return the file descriptor for it. The file descriptor is set + * CLOEXEC. The file is immediately suitable for mmap()'ing + * the given size at offset zero. + * + * The file should not have a permanent backing store like a disk, + * but may have if XDG_RUNTIME_DIR is not properly implemented in OS. + * + * The file name is deleted from the file system. + * + * The file is suitable for buffer sharing between processes by + * transmitting the file descriptor over Unix sockets using the + * SCM_RIGHTS methods. + * + * If the C library implements posix_fallocate(), it is used to + * guarantee that disk space is available for the file at the + * given size. If disk space is insufficient, errno is set to ENOSPC. + * If posix_fallocate() is not supported, program may receive + * SIGBUS on accessing mmap()'ed file contents instead. + */ +int +os_create_anonymous_file(off_t size) { + static const char template[] = "/weston-shared-XXXXXX"; + const char *path; + char *name; + int fd; + int ret; + + path = getenv("XDG_RUNTIME_DIR"); + if (!path) { + errno = ENOENT; + return -1; + } + + name = malloc(strlen(path) + sizeof(template)); + if (!name) + return -1; + + strcpy(name, path); + strcat(name, template); + + fd = create_tmpfile_cloexec(name); + + free(name); + + if (fd < 0) + return -1; + +#ifdef HAVE_POSIX_FALLOCATE + do { + ret = posix_fallocate(fd, 0, size); + } while (ret == EINTR); + if (ret != 0) { + close(fd); + errno = ret; + return -1; + } +#else + do { + ret = ftruncate(fd, size); + } while (ret < 0 && errno == EINTR); + if (ret < 0) { + close(fd); + return -1; + } +#endif + + return fd; +} + +#ifndef MISSING_STRCHRNUL +char * +strchrnul(const char *s, int c) { + while (*s && *s != c) + s++; + return (char *)s; +} +#endif diff --git a/os-compatibility.h b/os-compatibility.h new file mode 100644 index 0000000..80e7627 --- /dev/null +++ b/os-compatibility.h @@ -0,0 +1,52 @@ +/* + * Copyright © 2012 Collabora, Ltd. + * + * 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 (including the + * next paragraph) 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. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef OS_COMPATIBILITY_H +#define OS_COMPATIBILITY_H + +#include <sys/types.h> + +#ifdef HAVE_EXECINFO_H +#include <execinfo.h> +#else +static inline int +backtrace(void **buffer, int size) { + return 0; +} +#endif + +int os_fd_set_cloexec(int fd); + +int os_socketpair_cloexec(int domain, int type, int protocol, int *sv); + +int os_epoll_create_cloexec(void); + +int os_create_anonymous_file(off_t size); + +#ifdef MISSING_STRCHRNUL +char *strchrnul(const char *s, int c); +#endif + +#endif /* OS_COMPATIBILITY_H */ diff --git a/proto/virtual-keyboard-unstable-v1.xml b/proto/virtual-keyboard-unstable-v1.xml new file mode 100644 index 0000000..5095c91 --- /dev/null +++ b/proto/virtual-keyboard-unstable-v1.xml @@ -0,0 +1,113 @@ +<?xml version="1.0" encoding="UTF-8"?> +<protocol name="virtual_keyboard_unstable_v1"> + <copyright> + Copyright © 2008-2011 Kristian Høgsberg + Copyright © 2010-2013 Intel Corporation + Copyright © 2012-2013 Collabora, Ltd. + Copyright © 2018 Purism SPC + + 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 (including the next + paragraph) 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. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + DEALINGS IN THE SOFTWARE. + </copyright> + + <interface name="zwp_virtual_keyboard_v1" version="1"> + <description summary="virtual keyboard"> + The virtual keyboard provides an application with requests which emulate + the behaviour of a physical keyboard. + + This interface can be used by clients on its own to provide raw input + events, or it can accompany the input method protocol. + </description> + + <request name="keymap"> + <description summary="keyboard mapping"> + Provide a file descriptor to the compositor which can be + memory-mapped to provide a keyboard mapping description. + + Format carries a value from the keymap_format enumeration. + </description> + <arg name="format" type="uint" summary="keymap format"/> + <arg name="fd" type="fd" summary="keymap file descriptor"/> + <arg name="size" type="uint" summary="keymap size, in bytes"/> + </request> + + <enum name="error"> + <entry name="no_keymap" value="0" summary="No keymap was set"/> + </enum> + + <request name="key"> + <description summary="key event"> + A key was pressed or released. + The time argument is a timestamp with millisecond granularity, with an + undefined base. All requests regarding a single object must share the + same clock. + + Keymap must be set before issuing this request. + + State carries a value from the key_state enumeration. + </description> + <arg name="time" type="uint" summary="timestamp with millisecond granularity"/> + <arg name="key" type="uint" summary="key that produced the event"/> + <arg name="state" type="uint" summary="physical state of the key"/> + </request> + + <request name="modifiers"> + <description summary="modifier and group state"> + Notifies the compositor that the modifier and/or group state has + changed, and it should update state. + + The client should use wl_keyboard.modifiers event to synchronize its + internal state with seat state. + + Keymap must be set before issuing this request. + </description> + <arg name="mods_depressed" type="uint" summary="depressed modifiers"/> + <arg name="mods_latched" type="uint" summary="latched modifiers"/> + <arg name="mods_locked" type="uint" summary="locked modifiers"/> + <arg name="group" type="uint" summary="keyboard layout"/> + </request> + + <request name="destroy" type="destructor" since="1"> + <description summary="destroy the virtual keyboard keyboard object"/> + </request> + </interface> + + <interface name="zwp_virtual_keyboard_manager_v1" version="1"> + <description summary="virtual keyboard manager"> + A virtual keyboard manager allows an application to provide keyboard + input events as if they came from a physical keyboard. + </description> + + <enum name="error"> + <entry name="unauthorized" value="0" summary="client not authorized to use the interface"/> + </enum> + + <request name="create_virtual_keyboard"> + <description summary="Create a new virtual keyboard"> + Creates a new virtual keyboard associated to a seat. + + If the compositor enables a keyboard to perform arbitrary actions, it + should present an error when an untrusted client requests a new + keyboard. + </description> + <arg name="seat" type="object" interface="wl_seat"/> + <arg name="id" type="new_id" interface="zwp_virtual_keyboard_v1"/> + </request> + </interface> +</protocol> diff --git a/proto/wlr-layer-shell-unstable-v1.xml b/proto/wlr-layer-shell-unstable-v1.xml new file mode 100644 index 0000000..27f974f --- /dev/null +++ b/proto/wlr-layer-shell-unstable-v1.xml @@ -0,0 +1,325 @@ +<?xml version="1.0" encoding="UTF-8"?> +<protocol name="wlr_layer_shell_unstable_v1"> + <copyright> + Copyright © 2017 Drew DeVault + + Permission to use, copy, modify, distribute, and sell this + software and its documentation for any purpose is hereby granted + without fee, provided that the above copyright notice appear in + all copies and that both that copyright notice and this permission + notice appear in supporting documentation, and that the name of + the copyright holders not be used in advertising or publicity + pertaining to distribution of the software without specific, + written prior permission. The copyright holders make no + representations about the suitability of this software for any + purpose. It is provided "as is" without express or implied + warranty. + + THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY + SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, + ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF + THIS SOFTWARE. + </copyright> + + <interface name="zwlr_layer_shell_v1" version="3"> + <description summary="create surfaces that are layers of the desktop"> + Clients can use this interface to assign the surface_layer role to + wl_surfaces. Such surfaces are assigned to a "layer" of the output and + rendered with a defined z-depth respective to each other. They may also be + anchored to the edges and corners of a screen and specify input handling + semantics. This interface should be suitable for the implementation of + many desktop shell components, and a broad number of other applications + that interact with the desktop. + </description> + + <request name="get_layer_surface"> + <description summary="create a layer_surface from a surface"> + Create a layer surface for an existing surface. This assigns the role of + layer_surface, or raises a protocol error if another role is already + assigned. + + Creating a layer surface from a wl_surface which has a buffer attached + or committed is a client error, and any attempts by a client to attach + or manipulate a buffer prior to the first layer_surface.configure call + must also be treated as errors. + + After creating a layer_surface object and setting it up, the client + must perform an initial commit without any buffer attached. + The compositor will reply with a layer_surface.configure event. + The client must acknowledge it and is then allowed to attach a buffer + to map the surface. + + You may pass NULL for output to allow the compositor to decide which + output to use. Generally this will be the one that the user most + recently interacted with. + + Clients can specify a namespace that defines the purpose of the layer + surface. + </description> + <arg name="id" type="new_id" interface="zwlr_layer_surface_v1"/> + <arg name="surface" type="object" interface="wl_surface"/> + <arg name="output" type="object" interface="wl_output" allow-null="true"/> + <arg name="layer" type="uint" enum="layer" summary="layer to add this surface to"/> + <arg name="namespace" type="string" summary="namespace for the layer surface"/> + </request> + + <enum name="error"> + <entry name="role" value="0" summary="wl_surface has another role"/> + <entry name="invalid_layer" value="1" summary="layer value is invalid"/> + <entry name="already_constructed" value="2" summary="wl_surface has a buffer attached or committed"/> + </enum> + + <enum name="layer"> + <description summary="available layers for surfaces"> + These values indicate which layers a surface can be rendered in. They + are ordered by z depth, bottom-most first. Traditional shell surfaces + will typically be rendered between the bottom and top layers. + Fullscreen shell surfaces are typically rendered at the top layer. + Multiple surfaces can share a single layer, and ordering within a + single layer is undefined. + </description> + + <entry name="background" value="0"/> + <entry name="bottom" value="1"/> + <entry name="top" value="2"/> + <entry name="overlay" value="3"/> + </enum> + + <!-- Version 3 additions --> + + <request name="destroy" type="destructor" since="3"> + <description summary="destroy the layer_shell object"> + This request indicates that the client will not use the layer_shell + object any more. Objects that have been created through this instance + are not affected. + </description> + </request> + </interface> + + <interface name="zwlr_layer_surface_v1" version="3"> + <description summary="layer metadata interface"> + An interface that may be implemented by a wl_surface, for surfaces that + are designed to be rendered as a layer of a stacked desktop-like + environment. + + Layer surface state (layer, size, anchor, exclusive zone, + margin, interactivity) is double-buffered, and will be applied at the + time wl_surface.commit of the corresponding wl_surface is called. + + Attaching a null buffer to a layer surface unmaps it. + + Unmapping a layer_surface means that the surface cannot be shown by the + compositor until it is explicitly mapped again. The layer_surface + returns to the state it had right after layer_shell.get_layer_surface. + The client can re-map the surface by performing a commit without any + buffer attached, waiting for a configure event and handling it as usual. + </description> + + <request name="set_size"> + <description summary="sets the size of the surface"> + Sets the size of the surface in surface-local coordinates. The + compositor will display the surface centered with respect to its + anchors. + + If you pass 0 for either value, the compositor will assign it and + inform you of the assignment in the configure event. You must set your + anchor to opposite edges in the dimensions you omit; not doing so is a + protocol error. Both values are 0 by default. + + Size is double-buffered, see wl_surface.commit. + </description> + <arg name="width" type="uint"/> + <arg name="height" type="uint"/> + </request> + + <request name="set_anchor"> + <description summary="configures the anchor point of the surface"> + Requests that the compositor anchor the surface to the specified edges + and corners. If two orthogonal edges are specified (e.g. 'top' and + 'left'), then the anchor point will be the intersection of the edges + (e.g. the top left corner of the output); otherwise the anchor point + will be centered on that edge, or in the center if none is specified. + + Anchor is double-buffered, see wl_surface.commit. + </description> + <arg name="anchor" type="uint" enum="anchor"/> + </request> + + <request name="set_exclusive_zone"> + <description summary="configures the exclusive geometry of this surface"> + Requests that the compositor avoids occluding an area with other + surfaces. The compositor's use of this information is + implementation-dependent - do not assume that this region will not + actually be occluded. + + A positive value is only meaningful if the surface is anchored to one + edge or an edge and both perpendicular edges. If the surface is not + anchored, anchored to only two perpendicular edges (a corner), anchored + to only two parallel edges or anchored to all edges, a positive value + will be treated the same as zero. + + A positive zone is the distance from the edge in surface-local + coordinates to consider exclusive. + + Surfaces that do not wish to have an exclusive zone may instead specify + how they should interact with surfaces that do. If set to zero, the + surface indicates that it would like to be moved to avoid occluding + surfaces with a positive exclusive zone. If set to -1, the surface + indicates that it would not like to be moved to accommodate for other + surfaces, and the compositor should extend it all the way to the edges + it is anchored to. + + For example, a panel might set its exclusive zone to 10, so that + maximized shell surfaces are not shown on top of it. A notification + might set its exclusive zone to 0, so that it is moved to avoid + occluding the panel, but shell surfaces are shown underneath it. A + wallpaper or lock screen might set their exclusive zone to -1, so that + they stretch below or over the panel. + + The default value is 0. + + Exclusive zone is double-buffered, see wl_surface.commit. + </description> + <arg name="zone" type="int"/> + </request> + + <request name="set_margin"> + <description summary="sets a margin from the anchor point"> + Requests that the surface be placed some distance away from the anchor + point on the output, in surface-local coordinates. Setting this value + for edges you are not anchored to has no effect. + + The exclusive zone includes the margin. + + Margin is double-buffered, see wl_surface.commit. + </description> + <arg name="top" type="int"/> + <arg name="right" type="int"/> + <arg name="bottom" type="int"/> + <arg name="left" type="int"/> + </request> + + <request name="set_keyboard_interactivity"> + <description summary="requests keyboard events"> + Set to 1 to request that the seat send keyboard events to this layer + surface. For layers below the shell surface layer, the seat will use + normal focus semantics. For layers above the shell surface layers, the + seat will always give exclusive keyboard focus to the top-most layer + which has keyboard interactivity set to true. + + Layer surfaces receive pointer, touch, and tablet events normally. If + you do not want to receive them, set the input region on your surface + to an empty region. + + Events is double-buffered, see wl_surface.commit. + </description> + <arg name="keyboard_interactivity" type="uint"/> + </request> + + <request name="get_popup"> + <description summary="assign this layer_surface as an xdg_popup parent"> + This assigns an xdg_popup's parent to this layer_surface. This popup + should have been created via xdg_surface::get_popup with the parent set + to NULL, and this request must be invoked before committing the popup's + initial state. + + See the documentation of xdg_popup for more details about what an + xdg_popup is and how it is used. + </description> + <arg name="popup" type="object" interface="xdg_popup"/> + </request> + + <request name="ack_configure"> + <description summary="ack a configure event"> + When a configure event is received, if a client commits the + surface in response to the configure event, then the client + must make an ack_configure request sometime before the commit + request, passing along the serial of the configure event. + + If the client receives multiple configure events before it + can respond to one, it only has to ack the last configure event. + + A client is not required to commit immediately after sending + an ack_configure request - it may even ack_configure several times + before its next surface commit. + + A client may send multiple ack_configure requests before committing, but + only the last request sent before a commit indicates which configure + event the client really is responding to. + </description> + <arg name="serial" type="uint" summary="the serial from the configure event"/> + </request> + + <request name="destroy" type="destructor"> + <description summary="destroy the layer_surface"> + This request destroys the layer surface. + </description> + </request> + + <event name="configure"> + <description summary="suggest a surface change"> + The configure event asks the client to resize its surface. + + Clients should arrange their surface for the new states, and then send + an ack_configure request with the serial sent in this configure event at + some point before committing the new surface. + + The client is free to dismiss all but the last configure event it + received. + + The width and height arguments specify the size of the window in + surface-local coordinates. + + The size is a hint, in the sense that the client is free to ignore it if + it doesn't resize, pick a smaller size (to satisfy aspect ratio or + resize in steps of NxM pixels). If the client picks a smaller size and + is anchored to two opposite anchors (e.g. 'top' and 'bottom'), the + surface will be centered on this axis. + + If the width or height arguments are zero, it means the client should + decide its own window dimension. + </description> + <arg name="serial" type="uint"/> + <arg name="width" type="uint"/> + <arg name="height" type="uint"/> + </event> + + <event name="closed"> + <description summary="surface should be closed"> + The closed event is sent by the compositor when the surface will no + longer be shown. The output may have been destroyed or the user may + have asked for it to be removed. Further changes to the surface will be + ignored. The client should destroy the resource after receiving this + event, and create a new surface if they so choose. + </description> + </event> + + <enum name="error"> + <entry name="invalid_surface_state" value="0" summary="provided surface state is invalid"/> + <entry name="invalid_size" value="1" summary="size is invalid"/> + <entry name="invalid_anchor" value="2" summary="anchor bitfield is invalid"/> + </enum> + + <enum name="anchor" bitfield="true"> + <entry name="top" value="1" summary="the top edge of the anchor rectangle"/> + <entry name="bottom" value="2" summary="the bottom edge of the anchor rectangle"/> + <entry name="left" value="4" summary="the left edge of the anchor rectangle"/> + <entry name="right" value="8" summary="the right edge of the anchor rectangle"/> + </enum> + + <!-- Version 2 additions --> + + <request name="set_layer" since="2"> + <description summary="change the layer of the surface"> + Change the layer that the surface is rendered on. + + Layer is double-buffered, see wl_surface.commit. + </description> + <arg name="layer" type="uint" enum="zwlr_layer_shell_v1.layer" summary="layer to move this surface to"/> + </request> + </interface> +</protocol> diff --git a/proto/xdg-shell.xml b/proto/xdg-shell.xml new file mode 100644 index 0000000..e259a1f --- /dev/null +++ b/proto/xdg-shell.xml @@ -0,0 +1,1144 @@ +<?xml version="1.0" encoding="UTF-8"?> +<protocol name="xdg_shell"> + + <copyright> + Copyright © 2008-2013 Kristian Høgsberg + Copyright © 2013 Rafael Antognolli + Copyright © 2013 Jasper St. Pierre + Copyright © 2010-2013 Intel Corporation + Copyright © 2015-2017 Samsung Electronics Co., Ltd + Copyright © 2015-2017 Red Hat Inc. + + 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 (including the next + paragraph) 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. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + DEALINGS IN THE SOFTWARE. + </copyright> + + <interface name="xdg_wm_base" version="2"> + <description summary="create desktop-style surfaces"> + The xdg_wm_base interface is exposed as a global object enabling clients + to turn their wl_surfaces into windows in a desktop environment. It + defines the basic functionality needed for clients and the compositor to + create windows that can be dragged, resized, maximized, etc, as well as + creating transient windows such as popup menus. + </description> + + <enum name="error"> + <entry name="role" value="0" summary="given wl_surface has another role"/> + <entry name="defunct_surfaces" value="1" + summary="xdg_wm_base was destroyed before children"/> + <entry name="not_the_topmost_popup" value="2" + summary="the client tried to map or destroy a non-topmost popup"/> + <entry name="invalid_popup_parent" value="3" + summary="the client specified an invalid popup parent surface"/> + <entry name="invalid_surface_state" value="4" + summary="the client provided an invalid surface state"/> + <entry name="invalid_positioner" value="5" + summary="the client provided an invalid positioner"/> + </enum> + + <request name="destroy" type="destructor"> + <description summary="destroy xdg_wm_base"> + Destroy this xdg_wm_base object. + + Destroying a bound xdg_wm_base object while there are surfaces + still alive created by this xdg_wm_base object instance is illegal + and will result in a protocol error. + </description> + </request> + + <request name="create_positioner"> + <description summary="create a positioner object"> + Create a positioner object. A positioner object is used to position + surfaces relative to some parent surface. See the interface description + and xdg_surface.get_popup for details. + </description> + <arg name="id" type="new_id" interface="xdg_positioner"/> + </request> + + <request name="get_xdg_surface"> + <description summary="create a shell surface from a surface"> + This creates an xdg_surface for the given surface. While xdg_surface + itself is not a role, the corresponding surface may only be assigned + a role extending xdg_surface, such as xdg_toplevel or xdg_popup. + + This creates an xdg_surface for the given surface. An xdg_surface is + used as basis to define a role to a given surface, such as xdg_toplevel + or xdg_popup. It also manages functionality shared between xdg_surface + based surface roles. + + See the documentation of xdg_surface for more details about what an + xdg_surface is and how it is used. + </description> + <arg name="id" type="new_id" interface="xdg_surface"/> + <arg name="surface" type="object" interface="wl_surface"/> + </request> + + <request name="pong"> + <description summary="respond to a ping event"> + A client must respond to a ping event with a pong request or + the client may be deemed unresponsive. See xdg_wm_base.ping. + </description> + <arg name="serial" type="uint" summary="serial of the ping event"/> + </request> + + <event name="ping"> + <description summary="check if the client is alive"> + The ping event asks the client if it's still alive. Pass the + serial specified in the event back to the compositor by sending + a "pong" request back with the specified serial. See xdg_wm_base.ping. + + Compositors can use this to determine if the client is still + alive. It's unspecified what will happen if the client doesn't + respond to the ping request, or in what timeframe. Clients should + try to respond in a reasonable amount of time. + + A compositor is free to ping in any way it wants, but a client must + always respond to any xdg_wm_base object it created. + </description> + <arg name="serial" type="uint" summary="pass this to the pong request"/> + </event> + </interface> + + <interface name="xdg_positioner" version="2"> + <description summary="child surface positioner"> + The xdg_positioner provides a collection of rules for the placement of a + child surface relative to a parent surface. Rules can be defined to ensure + the child surface remains within the visible area's borders, and to + specify how the child surface changes its position, such as sliding along + an axis, or flipping around a rectangle. These positioner-created rules are + constrained by the requirement that a child surface must intersect with or + be at least partially adjacent to its parent surface. + + See the various requests for details about possible rules. + + At the time of the request, the compositor makes a copy of the rules + specified by the xdg_positioner. Thus, after the request is complete the + xdg_positioner object can be destroyed or reused; further changes to the + object will have no effect on previous usages. + + For an xdg_positioner object to be considered complete, it must have a + non-zero size set by set_size, and a non-zero anchor rectangle set by + set_anchor_rect. Passing an incomplete xdg_positioner object when + positioning a surface raises an error. + </description> + + <enum name="error"> + <entry name="invalid_input" value="0" summary="invalid input provided"/> + </enum> + + <request name="destroy" type="destructor"> + <description summary="destroy the xdg_positioner object"> + Notify the compositor that the xdg_positioner will no longer be used. + </description> + </request> + + <request name="set_size"> + <description summary="set the size of the to-be positioned rectangle"> + Set the size of the surface that is to be positioned with the positioner + object. The size is in surface-local coordinates and corresponds to the + window geometry. See xdg_surface.set_window_geometry. + + If a zero or negative size is set the invalid_input error is raised. + </description> + <arg name="width" type="int" summary="width of positioned rectangle"/> + <arg name="height" type="int" summary="height of positioned rectangle"/> + </request> + + <request name="set_anchor_rect"> + <description summary="set the anchor rectangle within the parent surface"> + Specify the anchor rectangle within the parent surface that the child + surface will be placed relative to. The rectangle is relative to the + window geometry as defined by xdg_surface.set_window_geometry of the + parent surface. + + When the xdg_positioner object is used to position a child surface, the + anchor rectangle may not extend outside the window geometry of the + positioned child's parent surface. + + If a negative size is set the invalid_input error is raised. + </description> + <arg name="x" type="int" summary="x position of anchor rectangle"/> + <arg name="y" type="int" summary="y position of anchor rectangle"/> + <arg name="width" type="int" summary="width of anchor rectangle"/> + <arg name="height" type="int" summary="height of anchor rectangle"/> + </request> + + <enum name="anchor"> + <entry name="none" value="0"/> + <entry name="top" value="1"/> + <entry name="bottom" value="2"/> + <entry name="left" value="3"/> + <entry name="right" value="4"/> + <entry name="top_left" value="5"/> + <entry name="bottom_left" value="6"/> + <entry name="top_right" value="7"/> + <entry name="bottom_right" value="8"/> + </enum> + + <request name="set_anchor"> + <description summary="set anchor rectangle anchor"> + Defines the anchor point for the anchor rectangle. The specified anchor + is used derive an anchor point that the child surface will be + positioned relative to. If a corner anchor is set (e.g. 'top_left' or + 'bottom_right'), the anchor point will be at the specified corner; + otherwise, the derived anchor point will be centered on the specified + edge, or in the center of the anchor rectangle if no edge is specified. + </description> + <arg name="anchor" type="uint" enum="anchor" + summary="anchor"/> + </request> + + <enum name="gravity"> + <entry name="none" value="0"/> + <entry name="top" value="1"/> + <entry name="bottom" value="2"/> + <entry name="left" value="3"/> + <entry name="right" value="4"/> + <entry name="top_left" value="5"/> + <entry name="bottom_left" value="6"/> + <entry name="top_right" value="7"/> + <entry name="bottom_right" value="8"/> + </enum> + + <request name="set_gravity"> + <description summary="set child surface gravity"> + Defines in what direction a surface should be positioned, relative to + the anchor point of the parent surface. If a corner gravity is + specified (e.g. 'bottom_right' or 'top_left'), then the child surface + will be placed towards the specified gravity; otherwise, the child + surface will be centered over the anchor point on any axis that had no + gravity specified. + </description> + <arg name="gravity" type="uint" enum="gravity" + summary="gravity direction"/> + </request> + + <enum name="constraint_adjustment" bitfield="true"> + <description summary="constraint adjustments"> + The constraint adjustment value define ways the compositor will adjust + the position of the surface, if the unadjusted position would result + in the surface being partly constrained. + + Whether a surface is considered 'constrained' is left to the compositor + to determine. For example, the surface may be partly outside the + compositor's defined 'work area', thus necessitating the child surface's + position be adjusted until it is entirely inside the work area. + + The adjustments can be combined, according to a defined precedence: 1) + Flip, 2) Slide, 3) Resize. + </description> + <entry name="none" value="0"> + <description summary="don't move the child surface when constrained"> + Don't alter the surface position even if it is constrained on some + axis, for example partially outside the edge of an output. + </description> + </entry> + <entry name="slide_x" value="1"> + <description summary="move along the x axis until unconstrained"> + Slide the surface along the x axis until it is no longer constrained. + + First try to slide towards the direction of the gravity on the x axis + until either the edge in the opposite direction of the gravity is + unconstrained or the edge in the direction of the gravity is + constrained. + + Then try to slide towards the opposite direction of the gravity on the + x axis until either the edge in the direction of the gravity is + unconstrained or the edge in the opposite direction of the gravity is + constrained. + </description> + </entry> + <entry name="slide_y" value="2"> + <description summary="move along the y axis until unconstrained"> + Slide the surface along the y axis until it is no longer constrained. + + First try to slide towards the direction of the gravity on the y axis + until either the edge in the opposite direction of the gravity is + unconstrained or the edge in the direction of the gravity is + constrained. + + Then try to slide towards the opposite direction of the gravity on the + y axis until either the edge in the direction of the gravity is + unconstrained or the edge in the opposite direction of the gravity is + constrained. + </description> + </entry> + <entry name="flip_x" value="4"> + <description summary="invert the anchor and gravity on the x axis"> + Invert the anchor and gravity on the x axis if the surface is + constrained on the x axis. For example, if the left edge of the + surface is constrained, the gravity is 'left' and the anchor is + 'left', change the gravity to 'right' and the anchor to 'right'. + + If the adjusted position also ends up being constrained, the resulting + position of the flip_x adjustment will be the one before the + adjustment. + </description> + </entry> + <entry name="flip_y" value="8"> + <description summary="invert the anchor and gravity on the y axis"> + Invert the anchor and gravity on the y axis if the surface is + constrained on the y axis. For example, if the bottom edge of the + surface is constrained, the gravity is 'bottom' and the anchor is + 'bottom', change the gravity to 'top' and the anchor to 'top'. + + The adjusted position is calculated given the original anchor + rectangle and offset, but with the new flipped anchor and gravity + values. + + If the adjusted position also ends up being constrained, the resulting + position of the flip_y adjustment will be the one before the + adjustment. + </description> + </entry> + <entry name="resize_x" value="16"> + <description summary="horizontally resize the surface"> + Resize the surface horizontally so that it is completely + unconstrained. + </description> + </entry> + <entry name="resize_y" value="32"> + <description summary="vertically resize the surface"> + Resize the surface vertically so that it is completely unconstrained. + </description> + </entry> + </enum> + + <request name="set_constraint_adjustment"> + <description summary="set the adjustment to be done when constrained"> + Specify how the window should be positioned if the originally intended + position caused the surface to be constrained, meaning at least + partially outside positioning boundaries set by the compositor. The + adjustment is set by constructing a bitmask describing the adjustment to + be made when the surface is constrained on that axis. + + If no bit for one axis is set, the compositor will assume that the child + surface should not change its position on that axis when constrained. + + If more than one bit for one axis is set, the order of how adjustments + are applied is specified in the corresponding adjustment descriptions. + + The default adjustment is none. + </description> + <arg name="constraint_adjustment" type="uint" + summary="bit mask of constraint adjustments"/> + </request> + + <request name="set_offset"> + <description summary="set surface position offset"> + Specify the surface position offset relative to the position of the + anchor on the anchor rectangle and the anchor on the surface. For + example if the anchor of the anchor rectangle is at (x, y), the surface + has the gravity bottom|right, and the offset is (ox, oy), the calculated + surface position will be (x + ox, y + oy). The offset position of the + surface is the one used for constraint testing. See + set_constraint_adjustment. + + An example use case is placing a popup menu on top of a user interface + element, while aligning the user interface element of the parent surface + with some user interface element placed somewhere in the popup surface. + </description> + <arg name="x" type="int" summary="surface position x offset"/> + <arg name="y" type="int" summary="surface position y offset"/> + </request> + </interface> + + <interface name="xdg_surface" version="2"> + <description summary="desktop user interface surface base interface"> + An interface that may be implemented by a wl_surface, for + implementations that provide a desktop-style user interface. + + It provides a base set of functionality required to construct user + interface elements requiring management by the compositor, such as + toplevel windows, menus, etc. The types of functionality are split into + xdg_surface roles. + + Creating an xdg_surface does not set the role for a wl_surface. In order + to map an xdg_surface, the client must create a role-specific object + using, e.g., get_toplevel, get_popup. The wl_surface for any given + xdg_surface can have at most one role, and may not be assigned any role + not based on xdg_surface. + + A role must be assigned before any other requests are made to the + xdg_surface object. + + The client must call wl_surface.commit on the corresponding wl_surface + for the xdg_surface state to take effect. + + Creating an xdg_surface from a wl_surface which has a buffer attached or + committed is a client error, and any attempts by a client to attach or + manipulate a buffer prior to the first xdg_surface.configure call must + also be treated as errors. + + Mapping an xdg_surface-based role surface is defined as making it + possible for the surface to be shown by the compositor. Note that + a mapped surface is not guaranteed to be visible once it is mapped. + + For an xdg_surface to be mapped by the compositor, the following + conditions must be met: + (1) the client has assigned an xdg_surface-based role to the surface + (2) the client has set and committed the xdg_surface state and the + role-dependent state to the surface + (3) the client has committed a buffer to the surface + + A newly-unmapped surface is considered to have met condition (1) out + of the 3 required conditions for mapping a surface if its role surface + has not been destroyed. + </description> + + <enum name="error"> + <entry name="not_constructed" value="1"/> + <entry name="already_constructed" value="2"/> + <entry name="unconfigured_buffer" value="3"/> + </enum> + + <request name="destroy" type="destructor"> + <description summary="destroy the xdg_surface"> + Destroy the xdg_surface object. An xdg_surface must only be destroyed + after its role object has been destroyed. + </description> + </request> + + <request name="get_toplevel"> + <description summary="assign the xdg_toplevel surface role"> + This creates an xdg_toplevel object for the given xdg_surface and gives + the associated wl_surface the xdg_toplevel role. + + See the documentation of xdg_toplevel for more details about what an + xdg_toplevel is and how it is used. + </description> + <arg name="id" type="new_id" interface="xdg_toplevel"/> + </request> + + <request name="get_popup"> + <description summary="assign the xdg_popup surface role"> + This creates an xdg_popup object for the given xdg_surface and gives + the associated wl_surface the xdg_popup role. + + If null is passed as a parent, a parent surface must be specified using + some other protocol, before committing the initial state. + + See the documentation of xdg_popup for more details about what an + xdg_popup is and how it is used. + </description> + <arg name="id" type="new_id" interface="xdg_popup"/> + <arg name="parent" type="object" interface="xdg_surface" allow-null="true"/> + <arg name="positioner" type="object" interface="xdg_positioner"/> + </request> + + <request name="set_window_geometry"> + <description summary="set the new window geometry"> + The window geometry of a surface is its "visible bounds" from the + user's perspective. Client-side decorations often have invisible + portions like drop-shadows which should be ignored for the + purposes of aligning, placing and constraining windows. + + The window geometry is double buffered, and will be applied at the + time wl_surface.commit of the corresponding wl_surface is called. + + When maintaining a position, the compositor should treat the (x, y) + coordinate of the window geometry as the top left corner of the window. + A client changing the (x, y) window geometry coordinate should in + general not alter the position of the window. + + Once the window geometry of the surface is set, it is not possible to + unset it, and it will remain the same until set_window_geometry is + called again, even if a new subsurface or buffer is attached. + + If never set, the value is the full bounds of the surface, + including any subsurfaces. This updates dynamically on every + commit. This unset is meant for extremely simple clients. + + The arguments are given in the surface-local coordinate space of + the wl_surface associated with this xdg_surface. + + The width and height must be greater than zero. Setting an invalid size + will raise an error. When applied, the effective window geometry will be + the set window geometry clamped to the bounding rectangle of the + combined geometry of the surface of the xdg_surface and the associated + subsurfaces. + </description> + <arg name="x" type="int"/> + <arg name="y" type="int"/> + <arg name="width" type="int"/> + <arg name="height" type="int"/> + </request> + + <request name="ack_configure"> + <description summary="ack a configure event"> + When a configure event is received, if a client commits the + surface in response to the configure event, then the client + must make an ack_configure request sometime before the commit + request, passing along the serial of the configure event. + + For instance, for toplevel surfaces the compositor might use this + information to move a surface to the top left only when the client has + drawn itself for the maximized or fullscreen state. + + If the client receives multiple configure events before it + can respond to one, it only has to ack the last configure event. + + A client is not required to commit immediately after sending + an ack_configure request - it may even ack_configure several times + before its next surface commit. + + A client may send multiple ack_configure requests before committing, but + only the last request sent before a commit indicates which configure + event the client really is responding to. + </description> + <arg name="serial" type="uint" summary="the serial from the configure event"/> + </request> + + <event name="configure"> + <description summary="suggest a surface change"> + The configure event marks the end of a configure sequence. A configure + sequence is a set of one or more events configuring the state of the + xdg_surface, including the final xdg_surface.configure event. + + Where applicable, xdg_surface surface roles will during a configure + sequence extend this event as a latched state sent as events before the + xdg_surface.configure event. Such events should be considered to make up + a set of atomically applied configuration states, where the + xdg_surface.configure commits the accumulated state. + + Clients should arrange their surface for the new states, and then send + an ack_configure request with the serial sent in this configure event at + some point before committing the new surface. + + If the client receives multiple configure events before it can respond + to one, it is free to discard all but the last event it received. + </description> + <arg name="serial" type="uint" summary="serial of the configure event"/> + </event> + </interface> + + <interface name="xdg_toplevel" version="2"> + <description summary="toplevel surface"> + This interface defines an xdg_surface role which allows a surface to, + among other things, set window-like properties such as maximize, + fullscreen, and minimize, set application-specific metadata like title and + id, and well as trigger user interactive operations such as interactive + resize and move. + + Unmapping an xdg_toplevel means that the surface cannot be shown + by the compositor until it is explicitly mapped again. + All active operations (e.g., move, resize) are canceled and all + attributes (e.g. title, state, stacking, ...) are discarded for + an xdg_toplevel surface when it is unmapped. + + Attaching a null buffer to a toplevel unmaps the surface. + </description> + + <request name="destroy" type="destructor"> + <description summary="destroy the xdg_toplevel"> + This request destroys the role surface and unmaps the surface; + see "Unmapping" behavior in interface section for details. + </description> + </request> + + <request name="set_parent"> + <description summary="set the parent of this surface"> + Set the "parent" of this surface. This surface should be stacked + above the parent surface and all other ancestor surfaces. + + Parent windows should be set on dialogs, toolboxes, or other + "auxiliary" surfaces, so that the parent is raised when the dialog + is raised. + + Setting a null parent for a child window removes any parent-child + relationship for the child. Setting a null parent for a window which + currently has no parent is a no-op. + + If the parent is unmapped then its children are managed as + though the parent of the now-unmapped parent has become the + parent of this surface. If no parent exists for the now-unmapped + parent then the children are managed as though they have no + parent surface. + </description> + <arg name="parent" type="object" interface="xdg_toplevel" allow-null="true"/> + </request> + + <request name="set_title"> + <description summary="set surface title"> + Set a short title for the surface. + + This string may be used to identify the surface in a task bar, + window list, or other user interface elements provided by the + compositor. + + The string must be encoded in UTF-8. + </description> + <arg name="title" type="string"/> + </request> + + <request name="set_app_id"> + <description summary="set application ID"> + Set an application identifier for the surface. + + The app ID identifies the general class of applications to which + the surface belongs. The compositor can use this to group multiple + surfaces together, or to determine how to launch a new application. + + For D-Bus activatable applications, the app ID is used as the D-Bus + service name. + + The compositor shell will try to group application surfaces together + by their app ID. As a best practice, it is suggested to select app + ID's that match the basename of the application's .desktop file. + For example, "org.freedesktop.FooViewer" where the .desktop file is + "org.freedesktop.FooViewer.desktop". + + See the desktop-entry specification [0] for more details on + application identifiers and how they relate to well-known D-Bus + names and .desktop files. + + [0] http://standards.freedesktop.org/desktop-entry-spec/ + </description> + <arg name="app_id" type="string"/> + </request> + + <request name="show_window_menu"> + <description summary="show the window menu"> + Clients implementing client-side decorations might want to show + a context menu when right-clicking on the decorations, giving the + user a menu that they can use to maximize or minimize the window. + + This request asks the compositor to pop up such a window menu at + the given position, relative to the local surface coordinates of + the parent surface. There are no guarantees as to what menu items + the window menu contains. + + This request must be used in response to some sort of user action + like a button press, key press, or touch down event. + </description> + <arg name="seat" type="object" interface="wl_seat" summary="the wl_seat of the user event"/> + <arg name="serial" type="uint" summary="the serial of the user event"/> + <arg name="x" type="int" summary="the x position to pop up the window menu at"/> + <arg name="y" type="int" summary="the y position to pop up the window menu at"/> + </request> + + <request name="move"> + <description summary="start an interactive move"> + Start an interactive, user-driven move of the surface. + + This request must be used in response to some sort of user action + like a button press, key press, or touch down event. The passed + serial is used to determine the type of interactive move (touch, + pointer, etc). + + The server may ignore move requests depending on the state of + the surface (e.g. fullscreen or maximized), or if the passed serial + is no longer valid. + + If triggered, the surface will lose the focus of the device + (wl_pointer, wl_touch, etc) used for the move. It is up to the + compositor to visually indicate that the move is taking place, such as + updating a pointer cursor, during the move. There is no guarantee + that the device focus will return when the move is completed. + </description> + <arg name="seat" type="object" interface="wl_seat" summary="the wl_seat of the user event"/> + <arg name="serial" type="uint" summary="the serial of the user event"/> + </request> + + <enum name="resize_edge"> + <description summary="edge values for resizing"> + These values are used to indicate which edge of a surface + is being dragged in a resize operation. + </description> + <entry name="none" value="0"/> + <entry name="top" value="1"/> + <entry name="bottom" value="2"/> + <entry name="left" value="4"/> + <entry name="top_left" value="5"/> + <entry name="bottom_left" value="6"/> + <entry name="right" value="8"/> + <entry name="top_right" value="9"/> + <entry name="bottom_right" value="10"/> + </enum> + + <request name="resize"> + <description summary="start an interactive resize"> + Start a user-driven, interactive resize of the surface. + + This request must be used in response to some sort of user action + like a button press, key press, or touch down event. The passed + serial is used to determine the type of interactive resize (touch, + pointer, etc). + + The server may ignore resize requests depending on the state of + the surface (e.g. fullscreen or maximized). + + If triggered, the client will receive configure events with the + "resize" state enum value and the expected sizes. See the "resize" + enum value for more details about what is required. The client + must also acknowledge configure events using "ack_configure". After + the resize is completed, the client will receive another "configure" + event without the resize state. + + If triggered, the surface also will lose the focus of the device + (wl_pointer, wl_touch, etc) used for the resize. It is up to the + compositor to visually indicate that the resize is taking place, + such as updating a pointer cursor, during the resize. There is no + guarantee that the device focus will return when the resize is + completed. + + The edges parameter specifies how the surface should be resized, + and is one of the values of the resize_edge enum. The compositor + may use this information to update the surface position for + example when dragging the top left corner. The compositor may also + use this information to adapt its behavior, e.g. choose an + appropriate cursor image. + </description> + <arg name="seat" type="object" interface="wl_seat" summary="the wl_seat of the user event"/> + <arg name="serial" type="uint" summary="the serial of the user event"/> + <arg name="edges" type="uint" summary="which edge or corner is being dragged"/> + </request> + + <enum name="state"> + <description summary="types of state on the surface"> + The different state values used on the surface. This is designed for + state values like maximized, fullscreen. It is paired with the + configure event to ensure that both the client and the compositor + setting the state can be synchronized. + + States set in this way are double-buffered. They will get applied on + the next commit. + </description> + <entry name="maximized" value="1" summary="the surface is maximized"> + <description summary="the surface is maximized"> + The surface is maximized. The window geometry specified in the configure + event must be obeyed by the client. + + The client should draw without shadow or other + decoration outside of the window geometry. + </description> + </entry> + <entry name="fullscreen" value="2" summary="the surface is fullscreen"> + <description summary="the surface is fullscreen"> + The surface is fullscreen. The window geometry specified in the + configure event is a maximum; the client cannot resize beyond it. For + a surface to cover the whole fullscreened area, the geometry + dimensions must be obeyed by the client. For more details, see + xdg_toplevel.set_fullscreen. + </description> + </entry> + <entry name="resizing" value="3" summary="the surface is being resized"> + <description summary="the surface is being resized"> + The surface is being resized. The window geometry specified in the + configure event is a maximum; the client cannot resize beyond it. + Clients that have aspect ratio or cell sizing configuration can use + a smaller size, however. + </description> + </entry> + <entry name="activated" value="4" summary="the surface is now activated"> + <description summary="the surface is now activated"> + Client window decorations should be painted as if the window is + active. Do not assume this means that the window actually has + keyboard or pointer focus. + </description> + </entry> + <entry name="tiled_left" value="5" since="2"> + <description summary="the surface is tiled"> + The window is currently in a tiled layout and the left edge is + considered to be adjacent to another part of the tiling grid. + </description> + </entry> + <entry name="tiled_right" value="6" since="2"> + <description summary="the surface is tiled"> + The window is currently in a tiled layout and the right edge is + considered to be adjacent to another part of the tiling grid. + </description> + </entry> + <entry name="tiled_top" value="7" since="2"> + <description summary="the surface is tiled"> + The window is currently in a tiled layout and the top edge is + considered to be adjacent to another part of the tiling grid. + </description> + </entry> + <entry name="tiled_bottom" value="8" since="2"> + <description summary="the surface is tiled"> + The window is currently in a tiled layout and the bottom edge is + considered to be adjacent to another part of the tiling grid. + </description> + </entry> + </enum> + + <request name="set_max_size"> + <description summary="set the maximum size"> + Set a maximum size for the window. + + The client can specify a maximum size so that the compositor does + not try to configure the window beyond this size. + + The width and height arguments are in window geometry coordinates. + See xdg_surface.set_window_geometry. + + Values set in this way are double-buffered. They will get applied + on the next commit. + + The compositor can use this information to allow or disallow + different states like maximize or fullscreen and draw accurate + animations. + + Similarly, a tiling window manager may use this information to + place and resize client windows in a more effective way. + + The client should not rely on the compositor to obey the maximum + size. The compositor may decide to ignore the values set by the + client and request a larger size. + + If never set, or a value of zero in the request, means that the + client has no expected maximum size in the given dimension. + As a result, a client wishing to reset the maximum size + to an unspecified state can use zero for width and height in the + request. + + Requesting a maximum size to be smaller than the minimum size of + a surface is illegal and will result in a protocol error. + + The width and height must be greater than or equal to zero. Using + strictly negative values for width and height will result in a + protocol error. + </description> + <arg name="width" type="int"/> + <arg name="height" type="int"/> + </request> + + <request name="set_min_size"> + <description summary="set the minimum size"> + Set a minimum size for the window. + + The client can specify a minimum size so that the compositor does + not try to configure the window below this size. + + The width and height arguments are in window geometry coordinates. + See xdg_surface.set_window_geometry. + + Values set in this way are double-buffered. They will get applied + on the next commit. + + The compositor can use this information to allow or disallow + different states like maximize or fullscreen and draw accurate + animations. + + Similarly, a tiling window manager may use this information to + place and resize client windows in a more effective way. + + The client should not rely on the compositor to obey the minimum + size. The compositor may decide to ignore the values set by the + client and request a smaller size. + + If never set, or a value of zero in the request, means that the + client has no expected minimum size in the given dimension. + As a result, a client wishing to reset the minimum size + to an unspecified state can use zero for width and height in the + request. + + Requesting a minimum size to be larger than the maximum size of + a surface is illegal and will result in a protocol error. + + The width and height must be greater than or equal to zero. Using + strictly negative values for width and height will result in a + protocol error. + </description> + <arg name="width" type="int"/> + <arg name="height" type="int"/> + </request> + + <request name="set_maximized"> + <description summary="maximize the window"> + Maximize the surface. + + After requesting that the surface should be maximized, the compositor + will respond by emitting a configure event. Whether this configure + actually sets the window maximized is subject to compositor policies. + The client must then update its content, drawing in the configured + state. The client must also acknowledge the configure when committing + the new content (see ack_configure). + + It is up to the compositor to decide how and where to maximize the + surface, for example which output and what region of the screen should + be used. + + If the surface was already maximized, the compositor will still emit + a configure event with the "maximized" state. + + If the surface is in a fullscreen state, this request has no direct + effect. It may alter the state the surface is returned to when + unmaximized unless overridden by the compositor. + </description> + </request> + + <request name="unset_maximized"> + <description summary="unmaximize the window"> + Unmaximize the surface. + + After requesting that the surface should be unmaximized, the compositor + will respond by emitting a configure event. Whether this actually + un-maximizes the window is subject to compositor policies. + If available and applicable, the compositor will include the window + geometry dimensions the window had prior to being maximized in the + configure event. The client must then update its content, drawing it in + the configured state. The client must also acknowledge the configure + when committing the new content (see ack_configure). + + It is up to the compositor to position the surface after it was + unmaximized; usually the position the surface had before maximizing, if + applicable. + + If the surface was already not maximized, the compositor will still + emit a configure event without the "maximized" state. + + If the surface is in a fullscreen state, this request has no direct + effect. It may alter the state the surface is returned to when + unmaximized unless overridden by the compositor. + </description> + </request> + + <request name="set_fullscreen"> + <description summary="set the window as fullscreen on an output"> + Make the surface fullscreen. + + After requesting that the surface should be fullscreened, the + compositor will respond by emitting a configure event. Whether the + client is actually put into a fullscreen state is subject to compositor + policies. The client must also acknowledge the configure when + committing the new content (see ack_configure). + + The output passed by the request indicates the client's preference as + to which display it should be set fullscreen on. If this value is NULL, + it's up to the compositor to choose which display will be used to map + this surface. + + If the surface doesn't cover the whole output, the compositor will + position the surface in the center of the output and compensate with + with border fill covering the rest of the output. The content of the + border fill is undefined, but should be assumed to be in some way that + attempts to blend into the surrounding area (e.g. solid black). + + If the fullscreened surface is not opaque, the compositor must make + sure that other screen content not part of the same surface tree (made + up of subsurfaces, popups or similarly coupled surfaces) are not + visible below the fullscreened surface. + </description> + <arg name="output" type="object" interface="wl_output" allow-null="true"/> + </request> + + <request name="unset_fullscreen"> + <description summary="unset the window as fullscreen"> + Make the surface no longer fullscreen. + + After requesting that the surface should be unfullscreened, the + compositor will respond by emitting a configure event. + Whether this actually removes the fullscreen state of the client is + subject to compositor policies. + + Making a surface unfullscreen sets states for the surface based on the following: + * the state(s) it may have had before becoming fullscreen + * any state(s) decided by the compositor + * any state(s) requested by the client while the surface was fullscreen + + The compositor may include the previous window geometry dimensions in + the configure event, if applicable. + + The client must also acknowledge the configure when committing the new + content (see ack_configure). + </description> + </request> + + <request name="set_minimized"> + <description summary="set the window as minimized"> + Request that the compositor minimize your surface. There is no + way to know if the surface is currently minimized, nor is there + any way to unset minimization on this surface. + + If you are looking to throttle redrawing when minimized, please + instead use the wl_surface.frame event for this, as this will + also work with live previews on windows in Alt-Tab, Expose or + similar compositor features. + </description> + </request> + + <event name="configure"> + <description summary="suggest a surface change"> + This configure event asks the client to resize its toplevel surface or + to change its state. The configured state should not be applied + immediately. See xdg_surface.configure for details. + + The width and height arguments specify a hint to the window + about how its surface should be resized in window geometry + coordinates. See set_window_geometry. + + If the width or height arguments are zero, it means the client + should decide its own window dimension. This may happen when the + compositor needs to configure the state of the surface but doesn't + have any information about any previous or expected dimension. + + The states listed in the event specify how the width/height + arguments should be interpreted, and possibly how it should be + drawn. + + Clients must send an ack_configure in response to this event. See + xdg_surface.configure and xdg_surface.ack_configure for details. + </description> + <arg name="width" type="int"/> + <arg name="height" type="int"/> + <arg name="states" type="array"/> + </event> + + <event name="close"> + <description summary="surface wants to be closed"> + The close event is sent by the compositor when the user + wants the surface to be closed. This should be equivalent to + the user clicking the close button in client-side decorations, + if your application has any. + + This is only a request that the user intends to close the + window. The client may choose to ignore this request, or show + a dialog to ask the user to save their data, etc. + </description> + </event> + </interface> + + <interface name="xdg_popup" version="2"> + <description summary="short-lived, popup surfaces for menus"> + A popup surface is a short-lived, temporary surface. It can be used to + implement for example menus, popovers, tooltips and other similar user + interface concepts. + + A popup can be made to take an explicit grab. See xdg_popup.grab for + details. + + When the popup is dismissed, a popup_done event will be sent out, and at + the same time the surface will be unmapped. See the xdg_popup.popup_done + event for details. + + Explicitly destroying the xdg_popup object will also dismiss the popup and + unmap the surface. Clients that want to dismiss the popup when another + surface of their own is clicked should dismiss the popup using the destroy + request. + + A newly created xdg_popup will be stacked on top of all previously created + xdg_popup surfaces associated with the same xdg_toplevel. + + The parent of an xdg_popup must be mapped (see the xdg_surface + description) before the xdg_popup itself. + + The x and y arguments passed when creating the popup object specify + where the top left of the popup should be placed, relative to the + local surface coordinates of the parent surface. See + xdg_surface.get_popup. An xdg_popup must intersect with or be at least + partially adjacent to its parent surface. + + The client must call wl_surface.commit on the corresponding wl_surface + for the xdg_popup state to take effect. + </description> + + <enum name="error"> + <entry name="invalid_grab" value="0" + summary="tried to grab after being mapped"/> + </enum> + + <request name="destroy" type="destructor"> + <description summary="remove xdg_popup interface"> + This destroys the popup. Explicitly destroying the xdg_popup + object will also dismiss the popup, and unmap the surface. + + If this xdg_popup is not the "topmost" popup, a protocol error + will be sent. + </description> + </request> + + <request name="grab"> + <description summary="make the popup take an explicit grab"> + This request makes the created popup take an explicit grab. An explicit + grab will be dismissed when the user dismisses the popup, or when the + client destroys the xdg_popup. This can be done by the user clicking + outside the surface, using the keyboard, or even locking the screen + through closing the lid or a timeout. + + If the compositor denies the grab, the popup will be immediately + dismissed. + + This request must be used in response to some sort of user action like a + button press, key press, or touch down event. The serial number of the + event should be passed as 'serial'. + + The parent of a grabbing popup must either be an xdg_toplevel surface or + another xdg_popup with an explicit grab. If the parent is another + xdg_popup it means that the popups are nested, with this popup now being + the topmost popup. + + Nested popups must be destroyed in the reverse order they were created + in, e.g. the only popup you are allowed to destroy at all times is the + topmost one. + + When compositors choose to dismiss a popup, they may dismiss every + nested grabbing popup as well. When a compositor dismisses popups, it + will follow the same dismissing order as required from the client. + + The parent of a grabbing popup must either be another xdg_popup with an + active explicit grab, or an xdg_popup or xdg_toplevel, if there are no + explicit grabs already taken. + + If the topmost grabbing popup is destroyed, the grab will be returned to + the parent of the popup, if that parent previously had an explicit grab. + + If the parent is a grabbing popup which has already been dismissed, this + popup will be immediately dismissed. If the parent is a popup that did + not take an explicit grab, an error will be raised. + + During a popup grab, the client owning the grab will receive pointer + and touch events for all their surfaces as normal (similar to an + "owner-events" grab in X11 parlance), while the top most grabbing popup + will always have keyboard focus. + </description> + <arg name="seat" type="object" interface="wl_seat" + summary="the wl_seat of the user event"/> + <arg name="serial" type="uint" summary="the serial of the user event"/> + </request> + + <event name="configure"> + <description summary="configure the popup surface"> + This event asks the popup surface to configure itself given the + configuration. The configured state should not be applied immediately. + See xdg_surface.configure for details. + + The x and y arguments represent the position the popup was placed at + given the xdg_positioner rule, relative to the upper left corner of the + window geometry of the parent surface. + </description> + <arg name="x" type="int" + summary="x position relative to parent surface window geometry"/> + <arg name="y" type="int" + summary="y position relative to parent surface window geometry"/> + <arg name="width" type="int" summary="window geometry width"/> + <arg name="height" type="int" summary="window geometry height"/> + </event> + + <event name="popup_done"> + <description summary="popup interaction is done"> + The popup_done event is sent out when a popup is dismissed by the + compositor. The client should destroy the xdg_popup object at this + point. + </description> + </event> + + </interface> +</protocol> diff --git a/wld b/wld new file mode 160000 +Subproject ea4eccb64cfcfc508b029a530fc434d6e6695af |