/* * vim:ts=4:sw=4:expandtab * * i3 - an improved dynamic tiling window manager * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE) * * include/data.h: This file defines all data structures used by i3 * */ #ifndef _DATA_H #define _DATA_H #define SN_API_NOT_YET_FROZEN 1 #include #include #include #include #include #include #include "queue.h" /* * To get the big concept: There are helper structures like struct * Workspace_Assignment. Every struct which is also defined as type (see * forward definitions) is considered to be a major structure, thus important. * * The following things are all stored in a 'Con', from very high level (the * biggest Cons) to very small (a single window): * * 1) X11 root window (as big as all your outputs combined) * 2) output (like LVDS1) * 3) content container, dockarea containers * 4) workspaces * 5) split containers * ... (you can arbitrarily nest split containers) * 6) X11 window containers * */ /* Forward definitions */ typedef struct Binding Binding; typedef struct Rect Rect; typedef struct xoutput Output; typedef struct Con Con; typedef struct Match Match; typedef struct Assignment Assignment; typedef struct Window i3Window; /****************************************************************************** * Helper types *****************************************************************************/ typedef enum { D_LEFT, D_RIGHT, D_UP, D_DOWN } direction_t; typedef enum { NO_ORIENTATION = 0, HORIZ, VERT } orientation_t; typedef enum { BS_NORMAL = 0, BS_NONE = 1, BS_1PIXEL = 2 } border_style_t; /** parameter to specify whether tree_close() and x_window_kill() should kill * only this specific window or the whole X11 client */ typedef enum { DONT_KILL_WINDOW = 0, KILL_WINDOW = 1, KILL_CLIENT = 2 } kill_window_t; enum { BIND_NONE = 0, BIND_SHIFT = XCB_MOD_MASK_SHIFT, /* (1 << 0) */ BIND_CONTROL = XCB_MOD_MASK_CONTROL, /* (1 << 2) */ BIND_MOD1 = XCB_MOD_MASK_1, /* (1 << 3) */ BIND_MOD2 = XCB_MOD_MASK_2, /* (1 << 4) */ BIND_MOD3 = XCB_MOD_MASK_3, /* (1 << 5) */ BIND_MOD4 = XCB_MOD_MASK_4, /* (1 << 6) */ BIND_MOD5 = XCB_MOD_MASK_5, /* (1 << 7) */ BIND_MODE_SWITCH = (1 << 8) }; /** * Stores a rectangle, for example the size of a window, the child window etc. * It needs to be packed so that the compiler will not add any padding bytes. * (it is used in src/ewmh.c for example) * * Note that x and y can contain signed values in some cases (for example when * used for the coordinates of a window, which can be set outside of the * visible area, but not when specifying the position of a workspace for the * _NET_WM_WORKAREA hint). Not declaring x/y as int32_t saves us a lot of * typecasts. * */ struct Rect { uint32_t x; uint32_t y; uint32_t width; uint32_t height; } __attribute__((packed)); /** * Stores the reserved pixels on each screen edge read from a * _NET_WM_STRUT_PARTIAL. * */ struct reservedpx { uint32_t left; uint32_t right; uint32_t top; uint32_t bottom; }; /** * Stores a width/height pair, used as part of deco_render_params to check * whether the rects width/height have changed. * */ struct width_height { uint32_t w; uint32_t h; }; /** * Stores the parameters for rendering a window decoration. This structure is * cached in every Con and no re-rendering will be done if the parameters have * not changed (only the pixmaps will be copied). * */ struct deco_render_params { struct Colortriple *color; int border_style; struct width_height con_rect; struct width_height con_window_rect; Rect con_deco_rect; uint32_t background; bool con_is_leaf; }; /** * Stores which workspace (by name) goes to which output. * */ struct Workspace_Assignment { char *name; char *output; TAILQ_ENTRY(Workspace_Assignment) ws_assignments; }; struct Ignore_Event { int sequence; int response_type; time_t added; SLIST_ENTRY(Ignore_Event) ignore_events; }; /** * Stores internal information about a startup sequence, like the workspace it * was initiated on. * */ struct Startup_Sequence { /** startup ID for this sequence, generated by libstartup-notification */ char *id; /** workspace on which this startup was initiated */ char *workspace; /** libstartup-notification context for this launch */ SnLauncherContext *context; TAILQ_ENTRY(Startup_Sequence) sequences; }; /** * Regular expression wrapper. It contains the pattern itself as a string (like * ^foo[0-9]$) as well as a pointer to the compiled PCRE expression and the * pcre_extra data returned by pcre_study(). * * This makes it easier to have a useful logfile, including the matching or * non-matching pattern. * */ struct regex { char *pattern; pcre *regex; pcre_extra *extra; }; /****************************************************************************** * Major types *****************************************************************************/ /** * Holds a keybinding, consisting of a keycode combined with modifiers and the * command which is executed as soon as the key is pressed (see src/cfgparse.y) * */ struct Binding { /** Symbol the user specified in configfile, if any. This needs to be * stored with the binding to be able to re-convert it into a keycode * if the keyboard mapping changes (using Xmodmap for example) */ char *symbol; /** Only in use if symbol != NULL. Gets set to the value to which the * symbol got translated when binding. Useful for unbinding and * checking which binding was used when a key press event comes in. * * This is an array of number_keycodes size. */ xcb_keycode_t *translated_to; uint32_t number_keycodes; /** Keycode to bind */ uint32_t keycode; /** Bitmask consisting of BIND_MOD_1, BIND_MODE_SWITCH, … */ uint32_t mods; /** Command, like in command mode */ char *command; TAILQ_ENTRY(Binding) bindings; }; /** * Holds a command specified by either an: * - exec-line * - exec_always-line * in the config (see src/config.c) * */ struct Autostart { /** Command, like in command mode */ char *command; /** no_startup_id flag for start_application(). Determines whether a * startup notification context/ID should be created. */ bool no_startup_id; TAILQ_ENTRY(Autostart) autostarts; TAILQ_ENTRY(Autostart) autostarts_always; }; /** * An Output is a physical output on your graphics driver. Outputs which * are currently in use have (output->active == true). Each output has a * position and a mode. An output usually corresponds to one connected * screen (except if you are running multiple screens in clone mode). * */ struct xoutput { /** Output id, so that we can requery the output directly later */ xcb_randr_output_t id; /** Name of the output */ char *name; /** Pointer to the Con which represents this output */ Con *con; /** Whether the output is currently active (has a CRTC attached with a * valid mode) */ bool active; /** Internal flags, necessary for querying RandR screens (happens in * two stages) */ bool changed; bool to_be_disabled; bool primary; /** x, y, width, height */ Rect rect; TAILQ_ENTRY(xoutput) outputs; }; /** * A 'Window' is a type which contains an xcb_window_t and all the related * information (hints like _NET_WM_NAME for that window). * */ struct Window { xcb_window_t id; /** Holds the xcb_window_t (just an ID) for the leader window (logical * parent for toolwindows and similar floating windows) */ xcb_window_t leader; xcb_window_t transient_for; char *class_class; char *class_instance; /** The name of the window as it will be passed to X11 (in UCS2 if the * application supports _NET_WM_NAME, in COMPOUND_TEXT otherwise). */ char *name_x; /** The WM_WINDOW_ROLE of this window (for example, the pidgin buddy window * sets "buddy list"). Useful to match specific windows in assignments or * for_window. */ char *role; /** Flag to force re-rendering the decoration upon changes */ bool name_x_changed; /** The name of the window as used in JSON (in UTF-8 if the application * supports _NET_WM_NAME, in COMPOUND_TEXT otherwise) */ char *name_json; /** The length of the name in glyphs (not bytes) */ size_t name_len; /** Whether the application used _NET_WM_NAME */ bool uses_net_wm_name; /** Whether the application needs to receive WM_TAKE_FOCUS */ bool needs_take_focus; /** When this window was marked urgent. 0 means not urgent */ struct timeval urgent; /** Whether this window accepts focus. We store this inverted so that the * default will be 'accepts focus'. */ bool doesnt_accept_focus; /** Whether the window says it is a dock window */ enum { W_NODOCK = 0, W_DOCK_TOP = 1, W_DOCK_BOTTOM = 2 } dock; /** Pixels the window reserves. left/right/top/bottom */ struct reservedpx reserved; /** Pointers to the Assignments which were already ran for this Window * (assignments run only once) */ uint32_t nr_assignments; Assignment **ran_assignments; /** Depth of the window */ uint16_t depth; }; /** * A "match" is a data structure which acts like a mask or expression to match * certain windows or not. For example, when using commands, you can specify a * command like this: [title="*Firefox*"] kill. The title member of the match * data structure will then be filled and i3 will check each window using * match_matches_window() to find the windows affected by this command. * */ struct Match { struct regex *title; struct regex *application; struct regex *class; struct regex *instance; struct regex *mark; struct regex *role; enum { U_DONTCHECK = -1, U_LATEST = 0, U_OLDEST = 1 } urgent; enum { M_DONTCHECK = -1, M_NODOCK = 0, M_DOCK_ANY = 1, M_DOCK_TOP = 2, M_DOCK_BOTTOM = 3 } dock; xcb_window_t id; Con *con_id; enum { M_ANY = 0, M_TILING, M_FLOATING } floating; /* Where the window looking for a match should be inserted: * * M_HERE = the matched container will be replaced by the window * (layout saving) * M_ASSIGN_WS = the matched container will be inserted in the target_ws. * M_BELOW = the window will be inserted as a child of the matched container * (dockareas) * */ enum { M_HERE = 0, M_ASSIGN_WS, M_BELOW } insert_where; /* Whether this match was generated when restarting i3 inplace. * Leads to not setting focus when managing a new window, because the old * focus stack should be restored. */ bool restart_mode; TAILQ_ENTRY(Match) matches; }; /** * An Assignment makes specific windows go to a specific workspace/output or * run a command for that window. With this mechanism, the user can -- for * example -- assign his browser to workspace "www". Checking if a window is * assigned works by comparing the Match data structure with the window (see * match_matches_window()). * */ struct Assignment { /** type of this assignment: * * A_COMMAND = run the specified command for the matching window * A_TO_WORKSPACE = assign the matching window to the specified workspace * A_TO_OUTPUT = assign the matching window to the specified output * * While the type is a bitmask, only one value can be set at a time. It is * a bitmask to allow filtering for multiple types, for example in the * assignment_for() function. * */ enum { A_ANY = 0, A_COMMAND = (1 << 0), A_TO_WORKSPACE = (1 << 1), A_TO_OUTPUT = (1 << 2) } type; /** the criteria to check if a window matches */ Match match; /** destination workspace/output/command, depending on the type */ union { char *command; char *workspace; char *output; } dest; TAILQ_ENTRY(Assignment) assignments; }; /** * A 'Con' represents everything from the X11 root window down to a single X11 window. * */ struct Con { bool mapped; /** whether this is a split container or not */ bool split; enum { CT_ROOT = 0, CT_OUTPUT = 1, CT_CON = 2, CT_FLOATING_CON = 3, CT_WORKSPACE = 4, CT_DOCKAREA = 5 } type; struct Con *parent; struct Rect rect; struct Rect window_rect; struct Rect deco_rect; /** the geometry this window requested when getting mapped */ struct Rect geometry; char *name; /** the workspace number, if this Con is of type CT_WORKSPACE and the * workspace is not a named workspace (for named workspaces, num == -1) */ int num; /* a sticky-group is an identifier which bundles several containers to a * group. The contents are shared between all of them, that is they are * displayed on whichever of the containers is currently visible */ char *sticky_group; /* user-definable mark to jump to this container later */ char *mark; double percent; /* proportional width/height, calculated from WM_NORMAL_HINTS, used to * apply an aspect ratio to windows (think of MPlayer) */ int proportional_width; int proportional_height; /* the wanted size of the window, used in combination with size * increments (see below). */ int base_width; int base_height; /* the x11 border pixel attribute */ int border_width; /* minimum increment size specified for the window (in pixels) */ int width_increment; int height_increment; struct Window *window; /* Should this container be marked urgent? This gets set when the window * inside this container (if any) sets the urgency hint, for example. */ bool urgent; /* ids/pixmap/graphics context for the frame window */ xcb_window_t frame; xcb_pixmap_t pixmap; xcb_gcontext_t pm_gc; bool pixmap_recreated; /** Cache for the decoration rendering */ struct deco_render_params *deco_render_params; /* Only workspace-containers can have floating clients */ TAILQ_HEAD(floating_head, Con) floating_head; TAILQ_HEAD(nodes_head, Con) nodes_head; TAILQ_HEAD(focus_head, Con) focus_head; TAILQ_HEAD(swallow_head, Match) swallow_head; enum { CF_NONE = 0, CF_OUTPUT = 1, CF_GLOBAL = 2 } fullscreen_mode; enum { L_DEFAULT = 0, L_STACKED = 1, L_TABBED = 2, L_DOCKAREA = 3, L_OUTPUT = 4, L_SPLITV = 5, L_SPLITH = 6 } layout, last_split_layout; border_style_t border_style; /** floating? (= not in tiling layout) This cannot be simply a bool * because we want to keep track of whether the status was set by the * application (by setting _NET_WM_WINDOW_TYPE appropriately) or by the * user. The user’s choice overwrites automatic mode, of course. The * order of the values is important because we check with >= * FLOATING_AUTO_ON if a client is floating. */ enum { FLOATING_AUTO_OFF = 0, FLOATING_USER_OFF = 1, FLOATING_AUTO_ON = 2, FLOATING_USER_ON = 3 } floating; /** This counter contains the number of UnmapNotify events for this * container (or, more precisely, for its ->frame) which should be ignored. * UnmapNotify events need to be ignored when they are caused by i3 itself, * for example when reparenting or when unmapping the window on a workspace * change. */ uint8_t ignore_unmap; TAILQ_ENTRY(Con) nodes; TAILQ_ENTRY(Con) focused; TAILQ_ENTRY(Con) all_cons; TAILQ_ENTRY(Con) floating_windows; /** callbacks */ void(*on_remove_child)(Con *); enum { SCRATCHPAD_NONE = 0, SCRATCHPAD_FRESH = 1, SCRATCHPAD_CHANGED = 2 } scratchpad_state; /* The ID of this container before restarting. Necessary to correctly * interpret back-references in the JSON (such as the focus stack). */ int old_id; }; #endif