2 * vim:ts=4:sw=4:expandtab
4 * i3 - an improved dynamic tiling window manager
5 * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
7 * include/data.h: This file defines all data structures used by i3
10 #include <xcb/randr.h>
11 #include <xcb/xcb_atom.h>
20 * To get the big concept: There are helper structures like struct Colorpixel
21 * or struct Stack_Window. Everything which is also defined as type (see
22 * forward definitions) is considered to be a major structure, thus important.
24 * Let’s start from the biggest to the smallest:
30 /* Forward definitions */
31 typedef struct Font i3Font;
32 typedef struct Binding Binding;
33 typedef struct Rect Rect;
34 typedef struct xoutput Output;
35 typedef struct Con Con;
36 typedef struct Match Match;
37 typedef struct Assignment Assignment;
38 typedef struct Window i3Window;
41 /******************************************************************************
43 *****************************************************************************/
44 typedef enum { D_LEFT, D_RIGHT, D_UP, D_DOWN } direction_t;
45 typedef enum { NO_ORIENTATION = 0, HORIZ, VERT } orientation_t;
46 typedef enum { BS_NORMAL = 0, BS_NONE = 1, BS_1PIXEL = 2 } border_style_t;
48 /** parameter to specify whether tree_close() and x_window_kill() should kill
49 * only this specific window or the whole X11 client */
50 typedef enum { DONT_KILL_WINDOW = 0, KILL_WINDOW = 1, KILL_CLIENT = 2 } kill_window_t;
54 BIND_SHIFT = XCB_MOD_MASK_SHIFT, /* (1 << 0) */
55 BIND_CONTROL = XCB_MOD_MASK_CONTROL, /* (1 << 2) */
56 BIND_MOD1 = XCB_MOD_MASK_1, /* (1 << 3) */
57 BIND_MOD2 = XCB_MOD_MASK_2, /* (1 << 4) */
58 BIND_MOD3 = XCB_MOD_MASK_3, /* (1 << 5) */
59 BIND_MOD4 = XCB_MOD_MASK_4, /* (1 << 6) */
60 BIND_MOD5 = XCB_MOD_MASK_5, /* (1 << 7) */
61 BIND_MODE_SWITCH = (1 << 8)
65 * Stores a rectangle, for example the size of a window, the child window etc.
66 * It needs to be packed so that the compiler will not add any padding bytes.
67 * (it is used in src/ewmh.c for example)
69 * Note that x and y can contain signed values in some cases (for example when
70 * used for the coordinates of a window, which can be set outside of the
71 * visible area, but not when specifying the position of a workspace for the
72 * _NET_WM_WORKAREA hint). Not declaring x/y as int32_t saves us a lot of
81 } __attribute__((packed));
84 * Stores the reserved pixels on each screen edge read from a
85 * _NET_WM_STRUT_PARTIAL.
96 * Stores a width/height pair, used as part of deco_render_params to check
97 * whether the rects width/height have changed.
100 struct width_height {
106 * Stores the parameters for rendering a window decoration. This structure is
107 * cached in every Con and no re-rendering will be done if the parameters have
108 * not changed (only the pixmaps will be copied).
111 struct deco_render_params {
112 struct Colortriple *color;
114 struct width_height con_rect;
115 struct width_height con_window_rect;
123 * Stores which workspace (by name) goes to which output.
126 struct Workspace_Assignment {
130 TAILQ_ENTRY(Workspace_Assignment) ws_assignments;
133 struct Ignore_Event {
138 SLIST_ENTRY(Ignore_Event) ignore_events;
142 * Regular expression wrapper. It contains the pattern itself as a string (like
143 * ^foo[0-9]$) as well as a pointer to the compiled PCRE expression and the
144 * pcre_extra data returned by pcre_study().
146 * This makes it easier to have a useful logfile, including the matching or
147 * non-matching pattern.
156 /******************************************************************************
158 *****************************************************************************/
161 * Holds a keybinding, consisting of a keycode combined with modifiers and the
162 * command which is executed as soon as the key is pressed (see src/command.c)
166 /** Symbol the user specified in configfile, if any. This needs to be
167 * stored with the binding to be able to re-convert it into a keycode
168 * if the keyboard mapping changes (using Xmodmap for example) */
171 /** Only in use if symbol != NULL. Gets set to the value to which the
172 * symbol got translated when binding. Useful for unbinding and
173 * checking which binding was used when a key press event comes in.
175 * This is an array of number_keycodes size. */
176 xcb_keycode_t *translated_to;
178 uint32_t number_keycodes;
180 /** Keycode to bind */
183 /** Bitmask consisting of BIND_MOD_1, BIND_MODE_SWITCH, … */
186 /** Command, like in command mode */
189 TAILQ_ENTRY(Binding) bindings;
193 * Holds a command specified by either an:
196 * in the config (see src/config.c)
200 /** Command, like in command mode */
202 TAILQ_ENTRY(Autostart) autostarts;
203 TAILQ_ENTRY(Autostart) autostarts_always;
207 * Data structure for cached font information:
208 * - font id in X11 (load it once)
209 * - font height (multiple calls needed to get it)
213 /** The height of the font, built from font_ascent + font_descent */
215 /** The xcb-id for the font */
221 * An Output is a physical output on your graphics driver. Outputs which
222 * are currently in use have (output->active == true). Each output has a
223 * position and a mode. An output usually corresponds to one connected
224 * screen (except if you are running multiple screens in clone mode).
228 /** Output id, so that we can requery the output directly later */
229 xcb_randr_output_t id;
230 /** Name of the output */
233 /** Pointer to the Con which represents this output */
236 /** Whether the output is currently active (has a CRTC attached with a
240 /** Internal flags, necessary for querying RandR screens (happens in
246 /** x, y, width, height */
249 TAILQ_ENTRY(xoutput) outputs;
255 /** Holds the xcb_window_t (just an ID) for the leader window (logical
256 * parent for toolwindows and similar floating windows) */
258 xcb_window_t transient_for;
261 char *class_instance;
263 /** The name of the window as it will be passed to X11 (in UCS2 if the
264 * application supports _NET_WM_NAME, in COMPOUND_TEXT otherwise). */
267 /** Flag to force re-rendering the decoration upon changes */
270 /** The name of the window as used in JSON (in UTF-8 if the application
271 * supports _NET_WM_NAME, in COMPOUND_TEXT otherwise) */
274 /** The length of the name in glyphs (not bytes) */
277 /** Whether the application used _NET_WM_NAME */
278 bool uses_net_wm_name;
280 /** Whether the application needs to receive WM_TAKE_FOCUS */
281 bool needs_take_focus;
283 /** Whether the window says it is a dock window */
284 enum { W_NODOCK = 0, W_DOCK_TOP = 1, W_DOCK_BOTTOM = 2 } dock;
286 /** Pixels the window reserves. left/right/top/bottom */
287 struct reservedpx reserved;
289 /** Pointers to the Assignments which were already ran for this Window
290 * (assignments run only once) */
291 uint32_t nr_assignments;
292 Assignment **ran_assignments;
297 struct regex *application;
299 struct regex *instance;
310 enum { M_ANY = 0, M_TILING, M_FLOATING } floating;
312 /* Where the window looking for a match should be inserted:
314 * M_HERE = the matched container will be replaced by the window
316 * M_ASSIGN_WS = the matched container will be inserted in the target_ws.
317 * M_BELOW = the window will be inserted as a child of the matched container
321 enum { M_HERE = 0, M_ASSIGN_WS, M_BELOW } insert_where;
323 TAILQ_ENTRY(Match) matches;
327 * An Assignment makes specific windows go to a specific workspace/output or
328 * run a command for that window. With this mechanism, the user can -- for
329 * example -- make specific windows floating or assign his browser to workspace
330 * "www". Checking if a window is assigned works by comparing the Match data
331 * structure with the window (see match_matches_window()).
335 /** type of this assignment:
337 * A_COMMAND = run the specified command for the matching window
338 * A_TO_WORKSPACE = assign the matching window to the specified workspace
339 * A_TO_OUTPUT = assign the matching window to the specified output
341 * While the type is a bitmask, only one value can be set at a time. It is
342 * a bitmask to allow filtering for multiple types, for example in the
343 * assignment_for() function.
348 A_COMMAND = (1 << 0),
349 A_TO_WORKSPACE = (1 << 1),
350 A_TO_OUTPUT = (1 << 2)
353 /** the criteria to check if a window matches */
356 /** destination workspace/output/command, depending on the type */
363 TAILQ_ENTRY(Assignment) assignments;
376 orientation_t orientation;
380 struct Rect window_rect;
381 struct Rect deco_rect;
382 /** the geometry this window requested when getting mapped */
383 struct Rect geometry;
387 /** the workspace number, if this Con is of type CT_WORKSPACE and the
388 * workspace is not a named workspace (for named workspaces, num == -1) */
391 /* a sticky-group is an identifier which bundles several containers to a
392 * group. The contents are shared between all of them, that is they are
393 * displayed on whichever of the containers is currently visible */
396 /* user-definable mark to jump to this container later */
401 /* proportional width/height, calculated from WM_NORMAL_HINTS, used to
402 * apply an aspect ratio to windows (think of MPlayer) */
403 int proportional_width;
404 int proportional_height;
405 /* the wanted size of the window, used in combination with size
406 * increments (see below). */
410 /* the x11 border pixel attribute */
413 /* minimum increment size specified for the window (in pixels) */
415 int height_increment;
417 struct Window *window;
419 /* Should this container be marked urgent? This gets set when the window
420 * inside this container (if any) sets the urgency hint, for example. */
423 /* ids/pixmap/graphics context for the frame window */
426 xcb_gcontext_t pm_gc;
427 bool pixmap_recreated;
429 /** Cache for the decoration rendering */
430 struct deco_render_params *deco_render_params;
432 /* Only workspace-containers can have floating clients */
433 TAILQ_HEAD(floating_head, Con) floating_head;
435 TAILQ_HEAD(nodes_head, Con) nodes_head;
436 TAILQ_HEAD(focus_head, Con) focus_head;
438 TAILQ_HEAD(swallow_head, Match) swallow_head;
440 enum { CF_NONE = 0, CF_OUTPUT = 1, CF_GLOBAL = 2 } fullscreen_mode;
441 enum { L_DEFAULT = 0, L_STACKED = 1, L_TABBED = 2, L_DOCKAREA = 3, L_OUTPUT = 4 } layout;
442 border_style_t border_style;
443 /** floating? (= not in tiling layout) This cannot be simply a bool
444 * because we want to keep track of whether the status was set by the
445 * application (by setting _NET_WM_WINDOW_TYPE appropriately) or by the
446 * user. The user’s choice overwrites automatic mode, of course. The
447 * order of the values is important because we check with >=
448 * FLOATING_AUTO_ON if a client is floating. */
450 FLOATING_AUTO_OFF = 0,
451 FLOATING_USER_OFF = 1,
452 FLOATING_AUTO_ON = 2,
456 /** This counter contains the number of UnmapNotify events for this
457 * container (or, more precisely, for its ->frame) which should be ignored.
458 * UnmapNotify events need to be ignored when they are caused by i3 itself,
459 * for example when reparenting or when unmapping the window on a workspace
461 uint8_t ignore_unmap;
463 TAILQ_ENTRY(Con) nodes;
464 TAILQ_ENTRY(Con) focused;
465 TAILQ_ENTRY(Con) all_cons;
466 TAILQ_ENTRY(Con) floating_windows;
469 void(*on_remove_child)(Con *);