rofi/include/x11-helper.h

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#ifndef X11_ROFI_HELPER_H
#define X11_ROFI_HELPER_H
#include <glib.h>
#include <cairo.h>
#include <xcb/xcb.h>
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#include "xkb.h"
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/**
* @defgroup X11Helper X11Helper
* @ingroup HELPERS
* @{
*/
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/**
* @param w The xcb_window_t to read property from.
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* @param atom The property identifier
*
* Get text property defined by atom from window.
* Support utf8.
*
* @returns a newly allocated string with the result or NULL
*/
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char* window_get_text_prop ( xcb_window_t w, xcb_atom_t atom );
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/**
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* @param w The xcb_window_t to set property on
* @param prop Atom of the property to change
* @param atoms List of atoms to change the property too
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* @param count The length of the atoms list.
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*
* Set property on window.
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*/
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void window_set_atom_prop ( xcb_window_t w, xcb_atom_t prop, xcb_atom_t *atoms, int count );
/** For getting the atoms in an enum */
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#define ATOM_ENUM( x ) x
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/** Get the atoms as strings. */
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#define ATOM_CHAR( x ) # x
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/** Atoms we want to pre-load */
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#define EWMH_ATOMS( X ) \
X ( _NET_WM_WINDOW_OPACITY ), \
X ( I3_SOCKET_PATH ), \
X ( UTF8_STRING ), \
X ( STRING ), \
X ( WM_WINDOW_ROLE ), \
X ( _XROOTPMAP_ID ), \
X ( _MOTIF_WM_HINTS ), \
X ( ESETROOT_PMAP_ID )
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/** enumeration of the atoms. */
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enum { EWMH_ATOMS ( ATOM_ENUM ), NUM_NETATOMS };
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/** atoms as string */
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extern const char *netatom_names[];
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/** atoms */
extern xcb_atom_t netatoms[NUM_NETATOMS];
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/**
* Enumerator describing the different modifier keys.
*/
enum
{
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/** Shift key */
X11MOD_SHIFT,
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/** Control Key */
X11MOD_CONTROL,
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/** Alt key */
X11MOD_ALT,
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/** Meta key */
X11MOD_META,
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/** Super (window) key */
X11MOD_SUPER,
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/** Hyper key */
X11MOD_HYPER,
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/** Any modifier */
X11MOD_ANY,
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/** Number of modifier keys */
NUM_X11MOD
};
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/**
* Structure describing a workarea/monitor.
*/
typedef struct _workarea
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{
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/** numeric monitor id. */
int monitor_id;
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/** if monitor is set as primary monitor. */
int primary;
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/** Horizontal location (in pixels) of the monitor. */
int x;
/** Vertical location (in pixels) of the monitor. */
int y;
/** Width of the monitor. */
int w;
/** Height of the monitor */
int h;
/** Output name of the monitor, e.g. eDP1 or VGA-1 */
char *name;
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/** Pointer to next monitor */
struct _workarea *next;
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} workarea;
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/**
* @param mon workarea to be filled in.
*
* Fills in #mon with the information about the monitor rofi should show on.
*
* @returns TRUE if monitor is found, FALSE if no monitor could be detected.
*/
int monitor_active ( workarea *mon );
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/**
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* Release keyboard grab on root window.
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*/
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void release_keyboard ( void );
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/**
* Release pointer grab on root window.
*/
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void release_pointer ( void );
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/**
* @param w xcb_window_t we want to grab keyboard on.
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*
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* Grab keyboard.
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*
* @return 1 when keyboard is grabbed, 0 not.
*/
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int take_keyboard ( xcb_window_t w );
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/**
* @param w xcb_window_t we want to grab mouse on.
*
* Grab mouse.
*
* @return 1 when mouse is grabbed, 0 not.
*/
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int take_pointer ( xcb_window_t w );
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/**
* @param mask The mask to canonilize
*
* @return The canonilized mask
*/
unsigned int x11_canonalize_mask ( unsigned int mask );
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/**
* @param xkb the xkb structure.
*
* Calculates the mask of all active modifier keys.
*
* @returns the mask describing all active modifier keys.
*/
unsigned int x11_get_current_mask ( xkb_stuff *xkb );
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/**
* @param combo String representing the key combo
* @param mod [out] The modifier specified (or AnyModifier if not specified)
* @param key [out] The key specified
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* @param release [out] If it should react on key-release, not key-press
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*
* Parse key from user input string.
*/
gboolean x11_parse_key ( const char *combo, unsigned int *mod, xkb_keysym_t *key, gboolean *release, GString * );
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/**
* Setup several items required.
* * Error handling,
* * Numlock detection
* * Cache
*/
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void x11_setup ( xkb_stuff *xkb );
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/**
* Depth of visual
*/
extern xcb_depth_t *depth;
/**
* Visual to use for creating window
*/
extern xcb_visualtype_t *visual;
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/**
* Color map to use for creating window
*/
extern xcb_colormap_t map;
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/**
* This function tries to create a 32bit TrueColor colormap.
* If this fails, it falls back to the default for the connected display.
*/
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void x11_create_visual_and_colormap ( void );
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/**
* Structure describing a cairo color.
*/
typedef struct
{
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/** red channel */
double red;
/** green channel */
double green;
/** blue channel */
double blue;
/** alpha channel */
double alpha;
} Color;
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/**
* @param name String representing the color.
*
* Allocate a pixel value for an X named color
*/
Color color_get ( const char *const name );
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/**
* @param d cairo drawing context to set color on
*
* Set cairo drawing context source color to the background color.
*/
void color_background ( cairo_t *d );
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/**
* @param d cairo drawing context to set color on
*
* Set cairo drawing context source color to the border color.
*/
void color_border ( cairo_t *d );
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/**
* @param d cairo drawing context to set color on
*
* Set cairo drawing context source color to the separator color.
*/
void color_separator ( cairo_t *d );
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/**
* @param d cairo drawing context to set color on.
* @param col The color to set.
*
* Sets col as cairo source color.
*/
void x11_helper_set_cairo_rgba ( cairo_t *d, Color col );
/**
* Gets a surface containing the background image of the desktop.
*
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* @returns a cairo surface with the background image of the desktop.
*/
cairo_surface_t * x11_helper_get_bg_surface ( void );
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/**
* Gets a surface for the root window of the desktop.
*
* Can be used to take screenshot.
*
* @returns a cairo surface for the root window of the desktop.
*/
cairo_surface_t *x11_helper_get_screenshot_surface ( void );
/**
* Creates an internal represenation of the available monitors.
* Used for positioning rofi.
*/
void x11_build_monitor_layout ( void );
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/**
* Dump the monitor layout to stdout.
*/
void x11_dump_monitor_layout ( void );
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/**
* @param mask the mask to check for key
* @param key the key to check in mask
*
* Check if key is in the modifier mask.
*
* @returns TRUE if key is in the modifier mask
*/
int x11_modifier_active ( unsigned int mask, int key );
/**
* @param window The X11 window to modify
*
* Set the right hints to disable the window decoration.
* (Set MOTIF_WM_HINTS, decoration field)
*/
void x11_disable_decoration ( xcb_window_t window );
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/*@}*/
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#endif