/* * vim:ts=4:sw=4:expandtab * * i3 - an improved dynamic tiling window manager * © 2009 Michael Stapelberg and contributors (see also: LICENSE) * * xcb.c: Helper functions for easier usage of XCB * */ #pragma once #include #include "data.h" #include "xcursor.h" #define _NET_WM_STATE_REMOVE 0 #define _NET_WM_STATE_ADD 1 #define _NET_WM_STATE_TOGGLE 2 /** This is the equivalent of XC_left_ptr. I’m not sure why xcb doesn’t have a * constant for that. */ #define XCB_CURSOR_LEFT_PTR 68 #define XCB_CURSOR_SB_H_DOUBLE_ARROW 108 #define XCB_CURSOR_SB_V_DOUBLE_ARROW 116 #define XCB_CURSOR_WATCH 150 /* from X11/keysymdef.h */ #define XCB_NUM_LOCK 0xff7f /* The event masks are defined here because we don’t only set them once but we need to set slight variations of them (without XCB_EVENT_MASK_ENTER_WINDOW while rendering the layout) */ /** The XCB_CW_EVENT_MASK for the child (= real window) */ #define CHILD_EVENT_MASK (XCB_EVENT_MASK_PROPERTY_CHANGE | \ XCB_EVENT_MASK_STRUCTURE_NOTIFY | \ XCB_EVENT_MASK_FOCUS_CHANGE) /** The XCB_CW_EVENT_MASK for its frame */ #define FRAME_EVENT_MASK (XCB_EVENT_MASK_BUTTON_PRESS | /* …mouse is pressed/released */ \ XCB_EVENT_MASK_BUTTON_RELEASE | \ XCB_EVENT_MASK_POINTER_MOTION | /* …mouse is moved */ \ XCB_EVENT_MASK_EXPOSURE | /* …our window needs to be redrawn */ \ XCB_EVENT_MASK_STRUCTURE_NOTIFY | /* …the frame gets destroyed */ \ XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT | /* …the application tries to resize itself */ \ XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | /* …subwindows get notifies */ \ XCB_EVENT_MASK_ENTER_WINDOW) /* …user moves cursor inside our window */ #define ROOT_EVENT_MASK (XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT | \ XCB_EVENT_MASK_BUTTON_PRESS | \ XCB_EVENT_MASK_STRUCTURE_NOTIFY | /* when the user adds a screen (e.g. video \ projector), the root window gets a \ ConfigureNotify */ \ XCB_EVENT_MASK_POINTER_MOTION | \ XCB_EVENT_MASK_PROPERTY_CHANGE | \ XCB_EVENT_MASK_ENTER_WINDOW) #define xmacro(atom) xcb_atom_t A_##atom; #include "atoms.xmacro" #undef xmacro extern unsigned int xcb_numlock_mask; /** * Convenience wrapper around xcb_create_window which takes care of depth, * generating an ID and checking for errors. * */ xcb_window_t create_window(xcb_connection_t *conn, Rect r, uint16_t depth, xcb_visualid_t visual, uint16_t window_class, enum xcursor_cursor_t cursor, bool map, uint32_t mask, uint32_t *values); /** * Draws a line from x,y to to_x,to_y using the given color * */ void xcb_draw_line(xcb_connection_t *conn, xcb_drawable_t drawable, xcb_gcontext_t gc, uint32_t colorpixel, uint32_t x, uint32_t y, uint32_t to_x, uint32_t to_y); /** * Draws a rectangle from x,y with width,height using the given color * */ void xcb_draw_rect(xcb_connection_t *conn, xcb_drawable_t drawable, xcb_gcontext_t gc, uint32_t colorpixel, uint32_t x, uint32_t y, uint32_t width, uint32_t height); /** * Generates a configure_notify_event with absolute coordinates (relative to * the X root window, not to the client’s frame) for the given client. * */ void fake_absolute_configure_notify(Con *con); /** * Sends the WM_TAKE_FOCUS ClientMessage to the given window * */ void send_take_focus(xcb_window_t window, xcb_timestamp_t timestamp); /** * Raises the given window (typically client->frame) above all other windows * */ void xcb_raise_window(xcb_connection_t *conn, xcb_window_t window); /** * Configures the given window to have the size/position specified by given rect * */ void xcb_set_window_rect(xcb_connection_t *conn, xcb_window_t window, Rect r); /** * Returns the first supported _NET_WM_WINDOW_TYPE atom. * */ xcb_atom_t xcb_get_preferred_window_type(xcb_get_property_reply_t *reply); /** * Returns true if the given reply contains the given data. * */ bool xcb_reply_contains_atom(xcb_get_property_reply_t *prop, xcb_atom_t atom); /** * Moves the mouse pointer into the middle of rect. * */ void xcb_warp_pointer_rect(xcb_connection_t *conn, Rect *rect); /** * Set the cursor of the root window to the given cursor id. * This function should only be used if xcursor_supported == false. * Otherwise, use xcursor_set_root_cursor(). * */ void xcb_set_root_cursor(int cursor); /** * Get depth of visual specified by visualid * */ uint16_t get_visual_depth(xcb_visualid_t visual_id); /** * Get visual type specified by visualid * */ xcb_visualtype_t *get_visualtype_by_id(xcb_visualid_t visual_id); /** * Get visualid with specified depth * */ xcb_visualid_t get_visualid_by_depth(uint16_t depth); /** * Add an atom to a list of atoms the given property defines. * This is useful, for example, for manipulating _NET_WM_STATE. * */ void xcb_add_property_atom(xcb_connection_t *conn, xcb_window_t window, xcb_atom_t property, xcb_atom_t atom); /** * Remove an atom from a list of atoms the given property defines without * removing any other potentially set atoms. This is useful, for example, for * manipulating _NET_WM_STATE. * */ void xcb_remove_property_atom(xcb_connection_t *conn, xcb_window_t window, xcb_atom_t property, xcb_atom_t atom); /** * Grab the specified buttons on a window when managing it. * */ void xcb_grab_buttons(xcb_connection_t *conn, xcb_window_t window, int *buttons);