*
* i3 - an improved dynamic tiling window manager
*
- * (c) 2009 Michael Stapelberg and contributors
+ * © 2009-2010 Michael Stapelberg and contributors
*
* See file LICENSE for license information.
*
*
*/
#include <xcb/xcb.h>
+#include <xcb/randr.h>
+#include <xcb/xcb_atom.h>
#include <stdbool.h>
#ifndef _DATA_H
#include "queue.h"
/*
- * To get the big concept: There are helper structures like struct Colorpixel or
- * struct Stack_Window. Everything which is also defined as type (see forward definitions)
- * is considered to be a major structure, thus important.
+ * To get the big concept: There are helper structures like struct Colorpixel
+ * or struct Stack_Window. Everything which is also defined as type (see
+ * forward definitions) is considered to be a major structure, thus important.
*
* Let’s start from the biggest to the smallest:
- * - An i3Screen is a virtual screen (Xinerama). This can be a single one, though two monitors
- * might be connected, if you’re running clone mode. There can also be multiple of them.
*
- * - Each i3Screen contains Workspaces. The concept is known from various other window managers.
- * Basically, a workspace is a specific set of windows, usually grouped thematically (irc,
- * www, work, …). You can switch between these.
+ * - 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).
*
- * - Each Workspace has a table, which is our layout abstraction. You manage your windows
- * by moving them around in your table. It grows as necessary.
+ * - Each Output contains Workspaces. The concept is known from various
+ * other window managers. Basically, a workspace is a specific set of
+ * windows, usually grouped thematically (irc, www, work, …). You can switch
+ * between these.
*
- * - Each cell of the table has a container, which can be in default or stacking mode. In default
- * mode, each client is given equally much space in the container. In stacking mode, only one
- * client is shown at a time, but all the titlebars are rendered at the top.
+ * - Each Workspace has a table, which is our layout abstraction. You manage
+ * your windows by moving them around in your table. It grows as necessary.
+ *
+ * - Each cell of the table has a container, which can be in default or
+ * stacking mode. In default mode, each client is given equally much space
+ * in the container. In stacking mode, only one client is shown at a time,
+ * but all the titlebars are rendered at the top.
*
* - Inside the container are clients, which is X11-speak for a window.
*
typedef struct Binding Binding;
typedef struct Workspace Workspace;
typedef struct Rect Rect;
-typedef struct Screen i3Screen;
+typedef struct xoutput Output;
/******************************************************************************
* Helper types
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, y;
- uint32_t width, height;
-};
+ uint32_t x;
+ uint32_t y;
+ uint32_t width;
+ uint32_t height;
+} __attribute__((packed));
-/*
+/**
* Defines a position in the table
*
*/
int column;
};
-/*
+/**
* Used for the cache of colorpixels.
*
*/
struct Colorpixel {
uint32_t pixel;
-
char *hex;
-
SLIST_ENTRY(Colorpixel) colorpixels;
};
-/*
- * Contains data for the windows needed to draw the titlebars on in stacking mode
+struct Cached_Pixmap {
+ xcb_pixmap_t id;
+
+ /* We’re going to paint on it, so a graphics context will be needed */
+ xcb_gcontext_t gc;
+
+ /* The rect with which the pixmap was created */
+ Rect rect;
+
+ /* The rect of the object to which this pixmap belongs. Necessary to
+ * find out when we need to re-create the pixmap. */
+ Rect *referred_rect;
+
+ xcb_drawable_t referred_drawable;
+};
+
+/**
+ * Contains data for the windows needed to draw the titlebars on in stacking
+ * mode
*
*/
struct Stack_Window {
xcb_window_t window;
- xcb_gcontext_t gc;
+ struct Cached_Pixmap pixmap;
Rect rect;
- /* Backpointer to the container this stack window is in */
+ /** Backpointer to the container this stack window is in */
Container *container;
SLIST_ENTRY(Stack_Window) stack_windows;
};
+struct Ignore_Event {
+ int sequence;
+ time_t added;
+
+ SLIST_ENTRY(Ignore_Event) ignore_events;
+};
+
+/**
+ * Emulates the behaviour of tables of libxcb-wm, which in libxcb 0.3.4
+ * suddenly vanished.
+ *
+ */
+struct keyvalue_element {
+ uint32_t key;
+ void *value;
+ TAILQ_ENTRY(keyvalue_element) elements;
+};
/******************************************************************************
* Major types
*****************************************************************************/
-/*
- * The concept of Workspaces is known from various other window managers. Basically,
- * a workspace is a specific set of windows, usually grouped thematically (irc,
- * www, work, …). You can switch between these.
+/**
+ * The concept of Workspaces is known from various other window
+ * managers. Basically, a workspace is a specific set of windows, usually
+ * grouped thematically (irc, www, work, …). You can switch between these.
*
*/
struct Workspace {
- /* Number of this workspace, starting from 0 */
+ /** Number of this workspace, starting from 0 */
int num;
- /* x, y, width, height */
+ /** Name of the workspace (in UCS-2) */
+ char *name;
+
+ /** Length of the workspace’s name (in glyphs) */
+ int name_len;
+
+ /** Width of the workspace’s name (in pixels) rendered in config.font */
+ int text_width;
+
+ /** x, y, width, height */
Rect rect;
- /* table dimensions */
+ /** table dimensions */
int cols;
+ /** table dimensions */
int rows;
- /* These are stored here only while this workspace is _not_ shown (see show_workspace()) */
+ /** These are stored here only while this workspace is _not_ shown
+ * (see show_workspace()) */
int current_row;
+ /** These are stored here only while this workspace is _not_ shown
+ * (see show_workspace()) */
int current_col;
- Client *fullscreen_client;
+ /** Should clients on this workspace be automatically floating? */
+ bool auto_float;
+ /** Are the floating clients on this workspace currently hidden? */
+ bool floating_hidden;
- /* Contains all clients with _NET_WM_WINDOW_TYPE == _NET_WM_WINDOW_TYPE_DOCK */
- SLIST_HEAD(dock_clients_head, Client) dock_clients;
+ /** A <screen> specifier on which this workspace would like to be (if
+ * the screen is available). screen := <number> | <position> */
+ char *preferred_screen;
+
+ /** Temporary flag needed for re-querying xinerama screens */
+ bool reassigned;
+
+ /** True if any client on this workspace has its urgent flag set */
+ bool urgent;
- /* The focus stack contains the clients in the correct order of focus so that
- the focus can be reverted correctly when a client is closed */
+ /** the client who is started in fullscreen mode on this workspace,
+ * NULL if there is none */
+ Client *fullscreen_client;
+
+ /** The focus stack contains the clients in the correct order of focus
+ so that the focus can be reverted correctly when a client is
+ closed */
SLIST_HEAD(focus_stack_head, Client) focus_stack;
- /* Backpointer to the screen this workspace is on */
- i3Screen *screen;
+ /** This tail queue contains the floating clients in order of when
+ * they were first set to floating (new floating clients are just
+ * appended) */
+ TAILQ_HEAD(floating_clients_head, Client) floating_clients;
+
+ /** Backpointer to the output this workspace is on */
+ Output *output;
- /* This is a two-dimensional dynamic array of Container-pointers. I’ve always wanted
- * to be a three-star programmer :) */
+ /** This is a two-dimensional dynamic array of
+ * Container-pointers. I’ve always wanted to be a three-star
+ * programmer :) */
Container ***table;
+
+ /** width_factor and height_factor contain the amount of space
+ * (percentage) a column/row has of all the space which is available
+ * for resized windows. This ensures that non-resized windows (newly
+ * opened, for example) have the same size as always */
+ float *width_factor;
+ float *height_factor;
+
+ TAILQ_ENTRY(Workspace) workspaces;
};
-/*
- * 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/command.c)
+/**
+ * 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/command.c)
*
*/
struct Binding {
- /* Keycode to bind */
+ /** 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, … */
+
+ /** Bitmask consisting of BIND_MOD_1, BIND_MODE_SWITCH, … */
uint32_t mods;
- /* Command, like in command mode */
+
+ /** Command, like in command mode */
char *command;
TAILQ_ENTRY(Binding) bindings;
};
-/*
+/**
+ * Holds a command specified by an exec-line in the config (see src/config.c)
+ *
+ */
+struct Autostart {
+ /** Command, like in command mode */
+ char *command;
+ TAILQ_ENTRY(Autostart) autostarts;
+};
+
+/**
+ * Holds an assignment for a given window class/title to a specific workspace
+ * (see src/config.c)
+ *
+ */
+struct Assignment {
+ char *windowclass_title;
+ /** floating is true if this was an assignment to the special
+ * workspace "~". Matching clients will be put into floating mode
+ * automatically. */
+ enum {
+ ASSIGN_FLOATING_NO, /* don’t float, but put on a workspace */
+ ASSIGN_FLOATING_ONLY, /* float, but don’t assign on a workspace */
+ ASSIGN_FLOATING /* float and put on a workspace */
+ } floating;
+
+ /** The number of the workspace to assign to. */
+ int workspace;
+ TAILQ_ENTRY(Assignment) assignments;
+};
+
+/**
* Data structure for cached font information:
* - font id in X11 (load it once)
* - font height (multiple calls needed to get it)
*
*/
struct Font {
- /* The name of the font, that is what the pattern resolves to */
+ /** The name of the font, that is what the pattern resolves to */
char *name;
- /* A copy of the pattern to build a cache */
+ /** A copy of the pattern to build a cache */
char *pattern;
- /* The height of the font, built from font_ascent + font_descent */
+ /** The height of the font, built from font_ascent + font_descent */
int height;
- /* The xcb-id for the font */
+ /** The xcb-id for the font */
xcb_font_t id;
TAILQ_ENTRY(Font) fonts;
};
-/*
+/**
* A client is X11-speak for a window.
*
*/
struct Client {
- /* if you set a client to floating and set it back to managed, it does remember its old
- position and *tries* to get back there */
+ /** initialized will be set to true if the client was fully
+ * initialized by manage_window() and all functions can be used
+ * normally */
+ bool initialized;
+
+ /** if you set a client to floating and set it back to managed, it
+ * does remember its old position and *tries* to get back there */
Cell old_position;
- /* Backpointer. A client is inside a container */
+ /** Backpointer. A client is inside a container */
Container *container;
+ /** Because dock clients don’t have a container, we have this
+ * workspace-backpointer */
+ Workspace *workspace;
- /* x, y, width, height of the frame */
+ /** x, y, width, height of the frame */
Rect rect;
- /* x, y, width, height of the child (relative to its frame) */
+ /** Position in floating mode and in tiling mode are saved
+ * separately */
+ Rect floating_rect;
+ /** x, y, width, height of the child (relative to its frame) */
Rect child_rect;
- /* contains the size calculated from the hints set by the window or 0 if the client
- did not send any hints */
+ /** contains the size calculated from the hints set by the window or 0
+ * if the client did not send any hints */
int proportional_height;
int proportional_width;
- /* Height which was determined by reading the _NET_WM_STRUT_PARTIAL top/bottom of the screen
- reservation */
+ int base_height;
+ int base_width;
+
+ /** The amount of pixels which X will draw around the client. */
+ int border_width;
+
+ /** contains the minimum increment size as specified for the window
+ * (in pixels). */
+ int width_increment;
+ int height_increment;
+
+ /** Height which was determined by reading the _NET_WM_STRUT_PARTIAL
+ * top/bottom of the screen reservation */
int desired_height;
- /* Name */
+ /** Name (= window title) */
char *name;
+ /** name_len stores the real string length (glyphs) of the window
+ * title if the client uses _NET_WM_NAME. Otherwise, it is set to -1
+ * to indicate that name should be just passed to X as 8-bit string
+ * and therefore will not be rendered correctly. This behaviour is to
+ * support legacy applications which do not set _NET_WM_NAME */
int name_len;
+ /** This will be set to true as soon as the first _NET_WM_NAME comes
+ * in. If set to true, legacy window names are ignored. */
+ bool uses_net_wm_name;
+
+ /** Holds the WM_CLASS (which consists of two strings, the instance
+ * and the class), useful for matching the client in commands */
+ char *window_class_instance;
+ char *window_class_class;
+
+ /** Holds the client’s mark, for vim-like jumping */
+ char *mark;
+
+ /** Holds the xcb_window_t (just an ID) for the leader window (logical
+ * parent for toolwindows and similar floating windows) */
+ xcb_window_t leader;
- /* fullscreen is pretty obvious */
+ /** fullscreen is pretty obvious */
bool fullscreen;
- /* Ensure TITLEBAR_TOP maps to 0 because we use calloc for initialization later */
+ /** 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 WM_CLASS to tools for example) 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;
+
+ /** Ensure TITLEBAR_TOP maps to 0 because we use calloc for
+ * initialization later */
enum { TITLEBAR_TOP = 0, TITLEBAR_LEFT, TITLEBAR_RIGHT, TITLEBAR_BOTTOM, TITLEBAR_OFF } titlebar_position;
- /* If a client is set as a dock, it is placed at the very bottom of the screen and its
- requested size is used */
+ /** Contains a bool specifying whether this window should not be drawn
+ * with the usual decorations */
+ bool borderless;
+
+ /** If a client is set as a dock, it is placed at the very bottom of
+ * the screen and its requested size is used */
bool dock;
- /* After leaving fullscreen mode, a client needs to be reconfigured (configuration =
- setting X, Y, width and height). By setting the force_reconfigure flag, render_layout()
- will reconfigure the client. */
+ /** True if the client set the urgency flag in its WM_HINTS property */
+ bool urgent;
+
+ /* After leaving fullscreen mode, a client needs to be reconfigured
+ * (configuration = setting X, Y, width and height). By setting the
+ * force_reconfigure flag, render_layout() will reconfigure the
+ * client. */
bool force_reconfigure;
- /* When reparenting a window, an unmap-notify is sent. As we delete windows when they’re
- unmapped, we need to ignore that one. Therefore, this flag is set when reparenting. */
+ /* When reparenting a window, an unmap-notify is sent. As we delete
+ * windows when they’re unmapped, we need to ignore that
+ * one. Therefore, this flag is set when reparenting. */
bool awaiting_useless_unmap;
/* XCB contexts */
- xcb_window_t frame; /* Our window: The frame around the client */
- xcb_gcontext_t titlegc; /* The titlebar’s graphic context inside the frame */
- xcb_window_t child; /* The client’s window */
-
- /* The following entry provides the necessary list pointers to use Client with LIST_* macros */
+ xcb_window_t frame; /**< Our window: The frame around the
+ * client */
+ xcb_gcontext_t titlegc; /**< The titlebar’s graphic context
+ * inside the frame */
+ xcb_window_t child; /**< The client’s window */
+
+ /** The following entry provides the necessary list pointers to use
+ * Client with LIST_* macros */
CIRCLEQ_ENTRY(Client) clients;
SLIST_ENTRY(Client) dock_clients;
SLIST_ENTRY(Client) focus_clients;
+ TAILQ_ENTRY(Client) floating_clients;
};
-/*
- * A container is either in default or stacking mode. It sits inside each cell of the table.
+/**
+ * A container is either in default, stacking or tabbed mode. There is one for
+ * each cell of the table.
*
*/
struct Container {
/* Width/Height of the container. Changeable by the user */
int width;
int height;
- /* width_factor and height_factor contain the amount of space (percentage) a window
- has of all the space which is available for resized windows. This ensures that
- non-resized windows (newly opened, for example) have the same size as always */
- float width_factor;
- float height_factor;
- /* When in stacking mode, we draw the titlebars of each client onto a separate window */
+ /* When in stacking mode, we draw the titlebars of each client onto a
+ * separate window */
struct Stack_Window stack_win;
/* Backpointer to the workspace this container is in */
Workspace *workspace;
- /* Ensure MODE_DEFAULT maps to 0 because we use calloc for initialization later */
- enum { MODE_DEFAULT = 0, MODE_STACK } mode;
+ /* Ensure MODE_DEFAULT maps to 0 because we use calloc for
+ * initialization later */
+ enum { MODE_DEFAULT = 0, MODE_STACK, MODE_TABBED } mode;
+
+ /* When in stacking, one can either have unlimited windows inside the
+ * container or set a limit for the rows or columns the stack window
+ * should display to use the screen more efficiently. */
+ enum { STACK_LIMIT_NONE = 0, STACK_LIMIT_COLS, STACK_LIMIT_ROWS } stack_limit;
+
+ /* The number of columns or rows to limit to, see stack_limit */
+ int stack_limit_value;
+
CIRCLEQ_HEAD(client_head, Client) clients;
};
-/*
- * This is a virtual screen (Xinerama). This can be a single one, though two monitors
- * might be connected, if you’re running clone mode. There can also be multiple of them.
+/**
+ * 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 Screen {
- /* Virtual screen number */
- int num;
+struct xoutput {
+ /** Output id, so that we can requery the output directly later */
+ xcb_randr_output_t id;
+ /** Name of the output */
+ char *name;
+
+ /** Whether the output is currently (has a CRTC attached with a valid
+ * mode) */
+ bool active;
- /* Current workspace selected on this virtual screen */
- int current_workspace;
+ /** Current workspace selected on this virtual screen */
+ Workspace *current_workspace;
- /* x, y, width, height */
+ /** x, y, width, height */
Rect rect;
- /* The bar window */
+ /** The bar window */
xcb_window_t bar;
xcb_gcontext_t bargc;
- TAILQ_ENTRY(Screen) screens;
+ /** Contains all clients with _NET_WM_WINDOW_TYPE ==
+ * _NET_WM_WINDOW_TYPE_DOCK */
+ SLIST_HEAD(dock_clients_head, Client) dock_clients;
+
+ TAILQ_ENTRY(xoutput) outputs;
};
#endif
projects / i3 / i3 / blobdiff