*
* i3 - an improved dynamic tiling window manager
*
- * © 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>
*
* 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.
- *
- * - 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.
+ * TODO
*
*/
/* Forward definitions */
-typedef struct Cell Cell;
typedef struct Font i3Font;
-typedef struct Container Container;
-typedef struct Client Client;
typedef struct Binding Binding;
-typedef struct Workspace Workspace;
typedef struct Rect Rect;
-typedef struct Screen i3Screen;
+typedef struct xoutput Output;
+typedef struct Con Con;
+typedef struct Match Match;
+typedef struct Window i3Window;
+
/******************************************************************************
* Helper types
*****************************************************************************/
typedef enum { D_LEFT, D_RIGHT, D_UP, D_DOWN } direction_t;
+typedef enum { HORIZ, VERT, NO_ORIENTATION } orientation_t;
enum {
BIND_NONE = 0,
/**
* 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)
*
- */
-struct Rect {
- uint32_t x, y;
- uint32_t width, height;
-};
-
-/**
- * Defines a position in the table
+ * 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 Cell {
- int row;
- int column;
-};
+struct Rect {
+ uint32_t x;
+ uint32_t y;
+ uint32_t width;
+ uint32_t height;
+} __attribute__((packed));
/**
* Used for the cache of colorpixels.
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;
- struct Cached_Pixmap pixmap;
- Rect rect;
-
- /** 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;
* 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.
- *
- */
-struct Workspace {
- /** Number of this workspace, starting from 0 */
- int num;
-
- /** 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 */
- int cols;
- /** table dimensions */
- int rows;
-
- /** 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;
-
- /** Should clients on this workspace be automatically floating? */
- bool auto_float;
- /** Are the floating clients on this workspace currently hidden? */
- bool floating_hidden;
-
- /** 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 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;
-
- /** 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 screen this workspace is on */
- i3Screen *screen;
-
- /** 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;
-};
-
/**
* 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)
TAILQ_ENTRY(Font) fonts;
};
+
/**
- * A client is X11-speak for a window.
+ * 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 Client {
- /** 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 */
- Container *container;
- /** Because dock clients don’t have a container, we have this
- * workspace-backpointer */
- Workspace *workspace;
-
- /** x, y, width, height of the frame */
- Rect rect;
- /** 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 */
- int proportional_height;
- int proportional_width;
-
- int base_height;
- int base_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 (= window title) */
+struct xoutput {
+ /** Output id, so that we can requery the output directly later */
+ xcb_randr_output_t id;
+ /** Name of the output */
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, useful for matching the client in commands */
- char *window_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 */
- bool fullscreen;
-
- /** 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;
-
- /** 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;
-
- /** 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. */
- 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 */
- CIRCLEQ_ENTRY(Client) clients;
- SLIST_ENTRY(Client) dock_clients;
- SLIST_ENTRY(Client) focus_clients;
- TAILQ_ENTRY(Client) floating_clients;
+
+ /** 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;
+
+ /** x, y, width, height */
+ Rect rect;
+
+ /** The bar window */
+ xcb_window_t bar;
+ xcb_gcontext_t bargc;
+
+ /** 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;
};
-/**
- * A container is either in default, stacking or tabbed mode. There is one for
- * each cell of the table.
- *
- */
-struct Container {
- /* Those are speaking for themselves: */
- Client *currently_focused;
- int colspan;
- int rowspan;
-
- /* Position of the container inside our table */
- int row;
- int col;
- /* Xinerama: X/Y of the container */
- int x;
- int y;
- /* Width/Height of the container. Changeable by the user */
- int width;
- int height;
+struct Window {
+ xcb_window_t id;
+
+ char *class_class;
+ char *class_instance;
+
+ /** The name of the window as it will be passod to X11 (in UCS2 if the
+ * application supports _NET_WM_NAME, in COMPOUND_TEXT otherwise). */
+ char *name_x;
+
+ /** 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) */
+ int name_len;
- /* When in stacking mode, we draw the titlebars of each client onto a
- * separate window */
- struct Stack_Window stack_win;
+ /** Whether the application used _NET_WM_NAME */
+ bool uses_net_wm_name;
+};
+
+struct Match {
+ enum { M_WINDOW, M_CON } what;
- /* Backpointer to the workspace this container is in */
- Workspace *workspace;
+ char *title;
+ int title_len;
+ char *application;
+ char *class;
+ char *instance;
+ xcb_window_t id;
+ bool floating;
- /* Ensure MODE_DEFAULT maps to 0 because we use calloc for
- * initialization later */
- enum { MODE_DEFAULT = 0, MODE_STACK, MODE_TABBED } mode;
+ enum { M_GLOBAL, M_OUTPUT, M_WORKSPACE } levels;
- /* 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;
+ enum { M_USER, M_RESTART } source;
- /* The number of columns or rows to limit to, see stack_limit */
- int stack_limit_value;
+ /* wo das fenster eingefügt werden soll. bei here wird es direkt
+ * diesem Con zugewiesen, also layout saving. bei active ist es
+ * ein assignment, welches an der momentan fokussierten stelle einfügt */
+ enum { M_HERE, M_ACTIVE } insert_where;
- CIRCLEQ_HEAD(client_head, Client) clients;
+ TAILQ_ENTRY(Match) matches;
};
-/**
- * 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.
- *
- */
-struct Screen {
- /** Virtual screen number */
- int num;
+struct Con {
+ bool mapped;
+ enum { CT_ROOT = 0, CT_OUTPUT = 1, CT_CON = 2, CT_FLOATING_CON = 3 } type;
+ orientation_t orientation;
+ struct Con *parent;
+ /* parent before setting it to floating */
+ struct Con *old_parent;
- /** Current workspace selected on this virtual screen */
- int current_workspace;
+ struct Rect rect;
+ struct Rect window_rect;
+ struct Rect deco_rect;
- /** x, y, width, height */
- Rect rect;
+ char *name;
- /** The bar window */
- xcb_window_t bar;
- xcb_gcontext_t bargc;
+ double percent;
+
+ struct Window *window;
+
+ /* ids/gc for the frame window */
+ xcb_window_t frame;
+ xcb_gcontext_t gc;
+
+ /* 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 } layout;
+ /** 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;
- /** Contains all clients with _NET_WM_WINDOW_TYPE ==
- * _NET_WM_WINDOW_TYPE_DOCK */
- SLIST_HEAD(dock_clients_head, Client) dock_clients;
- TAILQ_ENTRY(Screen) screens;
+ TAILQ_ENTRY(Con) nodes;
+ TAILQ_ENTRY(Con) focused;
+ TAILQ_ENTRY(Con) all_cons;
+ TAILQ_ENTRY(Con) floating_windows;
};
#endif
projects / i3 / i3 / blobdiff