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rofi/source/xcb.c

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/*
* rofi
*
* MIT/X11 License
* Copyright © 2012 Sean Pringle <sean.pringle@gmail.com>
* Copyright © 2013-2017 Qball Cow <qball@gmpclient.org>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
/** Log domain for this module */
#define G_LOG_DOMAIN "X11Helper"
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <stdint.h>
#include <glib.h>
#include <cairo.h>
#include <cairo-xcb.h>
#include <librsvg/rsvg.h>
#include <xcb/xcb.h>
#include <xcb/xcb_aux.h>
#include <xcb/randr.h>
#include <xcb/xinerama.h>
#include <xcb/xcb_ewmh.h>
#include <xcb/xproto.h>
#include <xcb/xkb.h>
#include <xkbcommon/xkbcommon.h>
#include <xkbcommon/xkbcommon-x11.h>
#include "xcb-internal.h"
#include "xcb.h"
#include "settings.h"
#include "helper.h"
#include "timings.h"
#include <rofi.h>
/** Checks if the if x and y is inside rectangle. */
#define INTERSECT( x, y, x1, y1, w1, h1 ) ( ( ( ( x ) >= ( x1 ) ) && ( ( x ) < ( x1 + w1 ) ) ) && ( ( ( y ) >= ( y1 ) ) && ( ( y ) < ( y1 + h1 ) ) ) )
WindowManager current_window_manager = WM_EWHM;
/**
* Structure holding xcb objects needed to function.
*/
struct _xcb_stuff xcb_int = {
.connection = NULL,
.screen = NULL,
.screen_nbr = -1,
.sndisplay = NULL,
.sncontext = NULL,
.monitors = NULL
};
xcb_stuff *xcb = &xcb_int;
/**
* Depth of root window.
*/
xcb_depth_t *depth = NULL;
xcb_visualtype_t *visual = NULL;
xcb_colormap_t map = XCB_COLORMAP_NONE;
/**
* Visual of the root window.
*/
static xcb_visualtype_t *root_visual = NULL;
xcb_atom_t netatoms[NUM_NETATOMS];
const char *netatom_names[] = { EWMH_ATOMS ( ATOM_CHAR ) };
/**
* Holds for each supported modifier the possible modifier mask.
* Check x11_mod_masks[MODIFIER]&mask != 0 to see if MODIFIER is activated.
*/
cairo_surface_t *x11_helper_get_screenshot_surface ( void )
{
return cairo_xcb_surface_create ( xcb->connection,
xcb_stuff_get_root_window (), root_visual,
xcb->screen->width_in_pixels, xcb->screen->height_in_pixels );
}
static xcb_pixmap_t get_root_pixmap ( xcb_connection_t *c,
xcb_screen_t *screen,
xcb_atom_t atom )
{
xcb_get_property_cookie_t cookie;
xcb_get_property_reply_t *reply;
xcb_pixmap_t rootpixmap = XCB_NONE;
cookie = xcb_get_property ( c,
0,
screen->root,
atom,
XCB_ATOM_PIXMAP,
0,
1 );
reply = xcb_get_property_reply ( c, cookie, NULL );
if ( reply ) {
if ( xcb_get_property_value_length ( reply ) == sizeof ( xcb_pixmap_t ) ) {
memcpy ( &rootpixmap, xcb_get_property_value ( reply ), sizeof ( xcb_pixmap_t ) );
}
free ( reply );
}
return rootpixmap;
}
cairo_surface_t * x11_helper_get_bg_surface ( void )
{
xcb_pixmap_t pm = get_root_pixmap ( xcb->connection, xcb->screen, netatoms[ESETROOT_PMAP_ID] );
if ( pm == XCB_NONE ) {
return NULL;
}
return cairo_xcb_surface_create ( xcb->connection, pm, root_visual,
xcb->screen->width_in_pixels, xcb->screen->height_in_pixels );
}
cairo_surface_t* cairo_image_surface_create_from_svg ( const gchar* file, int height )
{
cairo_surface_t *surface;
cairo_t *cr;
RsvgHandle * handle;
RsvgDimensionData dimensions;
handle = rsvg_handle_new_from_file ( file, NULL );
rsvg_handle_get_dimensions ( handle, &dimensions );
double scale = (double) height / dimensions.height;
surface = cairo_image_surface_create ( CAIRO_FORMAT_ARGB32,
(double) dimensions.width * scale,
(double) dimensions.height * scale );
cr = cairo_create ( surface );
cairo_scale ( cr, scale, scale );
rsvg_handle_render_cairo ( handle, cr );
cairo_destroy ( cr );
rsvg_handle_close ( handle, NULL );
g_object_unref ( handle );
return surface;
}
// retrieve a text property from a window
// technically we could use window_get_prop(), but this is better for character set support
char* window_get_text_prop ( xcb_window_t w, xcb_atom_t atom )
{
xcb_get_property_cookie_t c = xcb_get_property ( xcb->connection, 0, w, atom, XCB_GET_PROPERTY_TYPE_ANY, 0, UINT_MAX );
xcb_get_property_reply_t *r = xcb_get_property_reply ( xcb->connection, c, NULL );
if ( r ) {
if ( xcb_get_property_value_length ( r ) > 0 ) {
char *str = NULL;
if ( r->type == netatoms[UTF8_STRING] ) {
str = g_strndup ( xcb_get_property_value ( r ), xcb_get_property_value_length ( r ) );
}
else if ( r->type == netatoms[STRING] ) {
str = rofi_latin_to_utf8_strdup ( xcb_get_property_value ( r ), xcb_get_property_value_length ( r ) );
}
else {
str = g_strdup ( "Invalid encoding." );
}
free ( r );
return str;
}
free ( r );
}
return NULL;
}
void window_set_atom_prop ( xcb_window_t w, xcb_atom_t prop, xcb_atom_t *atoms, int count )
{
xcb_change_property ( xcb->connection, XCB_PROP_MODE_REPLACE, w, prop, XCB_ATOM_ATOM, 32, count, atoms );
}
/****
* Code used to get monitor layout.
*/
/**
* Free monitor structure.
*/
static void x11_monitor_free ( workarea *m )
{
g_free ( m->name );
g_free ( m );
}
static void x11_monitors_free ( void )
{
while ( xcb->monitors != NULL ) {
workarea *m = xcb->monitors;
xcb->monitors = m->next;
x11_monitor_free ( m );
}
}
/**
* Create monitor based on output id
*/
static workarea * x11_get_monitor_from_output ( xcb_randr_output_t out )
{
xcb_randr_get_output_info_reply_t *op_reply;
xcb_randr_get_crtc_info_reply_t *crtc_reply;
xcb_randr_get_output_info_cookie_t it = xcb_randr_get_output_info ( xcb->connection, out, XCB_CURRENT_TIME );
op_reply = xcb_randr_get_output_info_reply ( xcb->connection, it, NULL );
if ( op_reply->crtc == XCB_NONE ) {
free ( op_reply );
return NULL;
}
xcb_randr_get_crtc_info_cookie_t ct = xcb_randr_get_crtc_info ( xcb->connection, op_reply->crtc, XCB_CURRENT_TIME );
crtc_reply = xcb_randr_get_crtc_info_reply ( xcb->connection, ct, NULL );
if ( !crtc_reply ) {
free ( op_reply );
return NULL;
}
workarea *retv = g_malloc0 ( sizeof ( workarea ) );
retv->x = crtc_reply->x;
retv->y = crtc_reply->y;
retv->w = crtc_reply->width;
retv->h = crtc_reply->height;
retv->mw = op_reply->mm_width;
retv->mh = op_reply->mm_height;
char *tname = (char *) xcb_randr_get_output_info_name ( op_reply );
int tname_len = xcb_randr_get_output_info_name_length ( op_reply );
retv->name = g_malloc0 ( ( tname_len + 1 ) * sizeof ( char ) );
memcpy ( retv->name, tname, tname_len );
free ( crtc_reply );
free ( op_reply );
return retv;
}
static int x11_is_extension_present ( const char *extension )
{
xcb_query_extension_cookie_t randr_cookie = xcb_query_extension ( xcb->connection, strlen ( extension ), extension );
xcb_query_extension_reply_t *randr_reply = xcb_query_extension_reply ( xcb->connection, randr_cookie, NULL );
int present = randr_reply->present;
free ( randr_reply );
return present;
}
static void x11_build_monitor_layout_xinerama ()
{
xcb_xinerama_query_screens_cookie_t screens_cookie = xcb_xinerama_query_screens_unchecked (
xcb->connection
);
xcb_xinerama_query_screens_reply_t *screens_reply = xcb_xinerama_query_screens_reply (
xcb->connection,
screens_cookie,
NULL
);
xcb_xinerama_screen_info_iterator_t screens_iterator = xcb_xinerama_query_screens_screen_info_iterator (
screens_reply
);
for (; screens_iterator.rem > 0; xcb_xinerama_screen_info_next ( &screens_iterator ) ) {
workarea *w = g_malloc0 ( sizeof ( workarea ) );
w->x = screens_iterator.data->x_org;
w->y = screens_iterator.data->y_org;
w->w = screens_iterator.data->width;
w->h = screens_iterator.data->height;
w->next = xcb->monitors;
xcb->monitors = w;
}
int index = 0;
for ( workarea *iter = xcb->monitors; iter; iter = iter->next ) {
iter->monitor_id = index++;
}
free ( screens_reply );
}
void x11_build_monitor_layout ()
{
if ( xcb->monitors ) {
return;
}
// If RANDR is not available, try Xinerama
if ( !x11_is_extension_present ( "RANDR" ) ) {
// Check if xinerama is available.
if ( x11_is_extension_present ( "XINERAMA" ) ) {
g_debug ( "Query XINERAMA for monitor layout." );
x11_build_monitor_layout_xinerama ();
return;
}
g_debug ( "No RANDR or Xinerama available for getting monitor layout." );
return;
}
g_debug ( "Query RANDR for monitor layout." );
xcb_randr_get_screen_resources_current_reply_t *res_reply;
xcb_randr_get_screen_resources_current_cookie_t src;
src = xcb_randr_get_screen_resources_current ( xcb->connection, xcb->screen->root );
res_reply = xcb_randr_get_screen_resources_current_reply ( xcb->connection, src, NULL );
if ( !res_reply ) {
return; //just report error
}
int mon_num = xcb_randr_get_screen_resources_current_outputs_length ( res_reply );
xcb_randr_output_t *ops = xcb_randr_get_screen_resources_current_outputs ( res_reply );
// Get primary.
xcb_randr_get_output_primary_cookie_t pc = xcb_randr_get_output_primary ( xcb->connection, xcb->screen->root );
xcb_randr_get_output_primary_reply_t *pc_rep = xcb_randr_get_output_primary_reply ( xcb->connection, pc, NULL );
for ( int i = mon_num - 1; i >= 0; i-- ) {
workarea *w = x11_get_monitor_from_output ( ops[i] );
if ( w ) {
w->next = xcb->monitors;
xcb->monitors = w;
if ( pc_rep && pc_rep->output == ops[i] ) {
w->primary = TRUE;
}
}
}
// Number monitor
int index = 0;
for ( workarea *iter = xcb->monitors; iter; iter = iter->next ) {
iter->monitor_id = index++;
}
// If exists, free primary output reply.
if ( pc_rep ) {
free ( pc_rep );
}
free ( res_reply );
}
void x11_dump_monitor_layout ( void )
{
int is_term = isatty ( fileno ( stdout ) );
printf ( "Monitor layout:\n" );
for ( workarea *iter = xcb->monitors; iter; iter = iter->next ) {
printf ( "%s ID%s: %d", ( is_term ) ? color_bold : "", is_term ? color_reset : "", iter->monitor_id );
if ( iter->primary ) {
printf ( " (primary)" );
}
printf ( "\n" );
printf ( "%s name%s: %s\n", ( is_term ) ? color_bold : "", is_term ? color_reset : "", iter->name );
printf ( "%s position%s: %d,%d\n", ( is_term ) ? color_bold : "", is_term ? color_reset : "", iter->x, iter->y );
printf ( "%s size%s: %d,%d\n", ( is_term ) ? color_bold : "", is_term ? color_reset : "", iter->w, iter->h );
if ( iter->mw > 0 && iter->mh > 0 ) {
printf ( "%s size%s: %dmm,%dmm dpi: %.0f,%.0f\n",
( is_term ) ? color_bold : "",
is_term ? color_reset : "",
iter->mw,
iter->mh,
iter->w * 25.4 / (double) iter->mw,
iter->h * 25.4 / (double) iter->mh
);
}
printf ( "\n" );
}
}
static int monitor_get_dimension ( int monitor_id, workarea *mon )
{
memset ( mon, 0, sizeof ( workarea ) );
mon->w = xcb->screen->width_in_pixels;
mon->h = xcb->screen->height_in_pixels;
workarea *iter = NULL;
for ( iter = xcb->monitors; iter; iter = iter->next ) {
if ( iter->monitor_id == monitor_id ) {
*mon = *iter;
return TRUE;
}
}
return FALSE;
}
// find the dimensions of the monitor displaying point x,y
static void monitor_dimensions ( int x, int y, workarea *mon )
{
memset ( mon, 0, sizeof ( workarea ) );
mon->w = xcb->screen->width_in_pixels;
mon->h = xcb->screen->height_in_pixels;
for ( workarea *iter = xcb->monitors; iter; iter = iter->next ) {
if ( INTERSECT ( x, y, iter->x, iter->y, iter->w, iter->h ) ) {
*mon = *iter;
break;
}
}
}
/**
* @param root The X11 window used to find the pointer position. Usually the root window.
* @param x The x position of the mouse [out]
* @param y The y position of the mouse [out]
*
* find mouse pointer location
*
* @returns TRUE when found, FALSE otherwise
*/
static int pointer_get ( xcb_window_t root, int *x, int *y )
{
*x = 0;
*y = 0;
xcb_query_pointer_cookie_t c = xcb_query_pointer ( xcb->connection, root );
xcb_query_pointer_reply_t *r = xcb_query_pointer_reply ( xcb->connection, c, NULL );
if ( r ) {
*x = r->root_x;
*y = r->root_y;
free ( r );
return TRUE;
}
return FALSE;
}
static int monitor_active_from_id ( int mon_id, workarea *mon )
{
xcb_window_t root = xcb->screen->root;
int x, y;
// At mouse position.
if ( mon_id == -3 ) {
if ( pointer_get ( root, &x, &y ) ) {
monitor_dimensions ( x, y, mon );
mon->x = x;
mon->y = y;
return TRUE;
}
}
// Focused monitor
else if ( mon_id == -1 ) {
// Get the current desktop.
unsigned int current_desktop = 0;
xcb_get_property_cookie_t gcdc;
gcdc = xcb_ewmh_get_current_desktop ( &xcb->ewmh, xcb->screen_nbr );
if ( xcb_ewmh_get_current_desktop_reply ( &xcb->ewmh, gcdc, &current_desktop, NULL ) ) {
xcb_get_property_cookie_t c = xcb_ewmh_get_desktop_viewport ( &xcb->ewmh, xcb->screen_nbr );
xcb_ewmh_get_desktop_viewport_reply_t vp;
if ( xcb_ewmh_get_desktop_viewport_reply ( &xcb->ewmh, c, &vp, NULL ) ) {
if ( current_desktop < vp.desktop_viewport_len ) {
monitor_dimensions ( vp.desktop_viewport[current_desktop].x,
vp.desktop_viewport[current_desktop].y, mon );
xcb_ewmh_get_desktop_viewport_reply_wipe ( &vp );
return TRUE;
}
xcb_ewmh_get_desktop_viewport_reply_wipe ( &vp );
}
}
}
else if ( mon_id == -2 || mon_id == -4 ) {
xcb_window_t active_window;
xcb_get_property_cookie_t awc;
awc = xcb_ewmh_get_active_window ( &xcb->ewmh, xcb->screen_nbr );
if ( xcb_ewmh_get_active_window_reply ( &xcb->ewmh, awc, &active_window, NULL ) ) {
// get geometry.
xcb_get_geometry_cookie_t c = xcb_get_geometry ( xcb->connection, active_window );
xcb_get_geometry_reply_t *r = xcb_get_geometry_reply ( xcb->connection, c, NULL );
if ( r ) {
xcb_translate_coordinates_cookie_t ct = xcb_translate_coordinates ( xcb->connection, active_window, root, r->x, r->y );
xcb_translate_coordinates_reply_t *t = xcb_translate_coordinates_reply ( xcb->connection, ct, NULL );
if ( t ) {
if ( mon_id == -2 ) {
// place the menu above the window
// if some window is focused, place menu above window, else fall
// back to selected monitor.
mon->x = t->dst_x - r->x;
mon->y = t->dst_y - r->y;
mon->w = r->width;
mon->h = r->height;
free ( r );
free ( t );
return TRUE;
}
else if ( mon_id == -4 ) {
monitor_dimensions ( t->dst_x, t->dst_y, mon );
free ( r );
free ( t );
return TRUE;
}
}
free ( r );
}
}
}
// Monitor that has mouse pointer.
else if ( mon_id == -5 ) {
if ( pointer_get ( root, &x, &y ) ) {
monitor_dimensions ( x, y, mon );
return TRUE;
}
// This is our give up point.
return FALSE;
}
g_debug ( "Failed to find monitor, fall back to monitor showing mouse." );
return monitor_active_from_id ( -5, mon );
}
// determine which monitor holds the active window, or failing that the mouse pointer
int monitor_active ( workarea *mon )
{
if ( config.monitor != NULL ) {
for ( workarea *iter = xcb->monitors; iter; iter = iter->next ) {
if ( g_strcmp0 ( config.monitor, iter->name ) == 0 ) {
*mon = *iter;
return TRUE;
}
}
}
// Grab primary.
if ( g_strcmp0 ( config.monitor, "primary" ) == 0 ) {
for ( workarea *iter = xcb->monitors; iter; iter = iter->next ) {
if ( iter->primary ) {
*mon = *iter;
return TRUE;
}
}
}
// IF fail, fall back to classic mode.
char *end = NULL;
gint64 mon_id = g_ascii_strtoll ( config.monitor, &end, 0 );
if ( end != config.monitor ) {
if ( mon_id >= 0 ) {
if ( monitor_get_dimension ( mon_id, mon ) ) {
return TRUE;
}
g_warning ( "Failed to find selected monitor." );
}
else {
return monitor_active_from_id ( mon_id, mon );
}
}
// Fallback.
monitor_dimensions ( 0, 0, mon );
return FALSE;
}
int take_pointer ( xcb_window_t w, int iters )
{
int i = 0;
while ( TRUE ) {
if ( xcb_connection_has_error ( xcb->connection ) ) {
g_warning ( "Connection has error" );
exit ( EXIT_FAILURE );
}
xcb_grab_pointer_cookie_t cc = xcb_grab_pointer ( xcb->connection, 1, w, XCB_EVENT_MASK_BUTTON_RELEASE,
XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC, w, XCB_NONE, XCB_CURRENT_TIME );
xcb_grab_pointer_reply_t *r = xcb_grab_pointer_reply ( xcb->connection, cc, NULL );
if ( r ) {
if ( r->status == XCB_GRAB_STATUS_SUCCESS ) {
free ( r );
return 1;
}
free ( r );
}
if ( ( ++i ) > iters ) {
break;
}
usleep ( 1000 );
}
return 0;
}
int take_keyboard ( xcb_window_t w, int iters )
{
int i = 0;
while ( TRUE ) {
if ( xcb_connection_has_error ( xcb->connection ) ) {
g_warning ( "Connection has error" );
exit ( EXIT_FAILURE );
}
xcb_grab_keyboard_cookie_t cc = xcb_grab_keyboard ( xcb->connection,
1, w, XCB_CURRENT_TIME, XCB_GRAB_MODE_ASYNC,
XCB_GRAB_MODE_ASYNC );
xcb_grab_keyboard_reply_t *r = xcb_grab_keyboard_reply ( xcb->connection, cc, NULL );
if ( r ) {
if ( r->status == XCB_GRAB_STATUS_SUCCESS ) {
free ( r );
return 1;
}
free ( r );
}
if ( ( ++i ) > iters ) {
break;
}
usleep ( 1000 );
}
return 0;
}
void release_keyboard ( void )
{
xcb_ungrab_keyboard ( xcb->connection, XCB_CURRENT_TIME );
}
void release_pointer ( void )
{
xcb_ungrab_pointer ( xcb->connection, XCB_CURRENT_TIME );
}
/** X server error depth. to handle nested errors. */
static int error_trap_depth = 0;
static void error_trap_push ( G_GNUC_UNUSED SnDisplay *display, G_GNUC_UNUSED xcb_connection_t *xdisplay )
{
++error_trap_depth;
}
static void error_trap_pop ( G_GNUC_UNUSED SnDisplay *display, xcb_connection_t *xdisplay )
{
if ( error_trap_depth == 0 ) {
g_warning ( "Error trap underflow!" );
exit ( EXIT_FAILURE );
}
xcb_flush ( xdisplay );
--error_trap_depth;
}
/**
* Fill in the list of frequently used X11 Atoms.
*/
static void x11_create_frequently_used_atoms ( void )
{
// X atom values
for ( int i = 0; i < NUM_NETATOMS; i++ ) {
xcb_intern_atom_cookie_t cc = xcb_intern_atom ( xcb->connection, 0, strlen ( netatom_names[i] ), netatom_names[i] );
xcb_intern_atom_reply_t *r = xcb_intern_atom_reply ( xcb->connection, cc, NULL );
if ( r ) {
netatoms[i] = r->atom;
free ( r );
}
}
}
gboolean x11_setup ( GMainLoop *main_loop )
{
// Get DISPLAY, first env, then argument.
// We never modify display_str content.
char *display_str = ( char *) g_getenv ( "DISPLAY" );
find_arg_str ( "-display", &display_str );
xcb->main_loop = main_loop;
xcb->source = g_water_xcb_source_new ( g_main_loop_get_context ( xcb->main_loop ), display_str, &xcb->screen_nbr, main_loop_x11_event_handler, NULL, NULL );
if ( xcb->source == NULL ) {
g_warning ( "Failed to open display: %s", display_str );
return FALSE;
}
xcb->connection = g_water_xcb_source_get_connection ( xcb->source );
TICK_N ( "Open Display" );
xcb->screen = xcb_aux_get_screen ( xcb->connection, xcb->screen_nbr );
x11_build_monitor_layout ();
xcb_intern_atom_cookie_t *ac = xcb_ewmh_init_atoms ( xcb->connection, &xcb->ewmh );
xcb_generic_error_t *errors = NULL;
xcb_ewmh_init_atoms_replies ( &xcb->ewmh, ac, &errors );
if ( errors ) {
g_warning ( "Failed to create EWMH atoms" );
free ( errors );
}
// Discover the current active window manager.
x11_helper_discover_window_manager ();
TICK_N ( "Setup XCB" );
if ( xkb_x11_setup_xkb_extension ( xcb->connection, XKB_X11_MIN_MAJOR_XKB_VERSION, XKB_X11_MIN_MINOR_XKB_VERSION,
XKB_X11_SETUP_XKB_EXTENSION_NO_FLAGS, NULL, NULL, &xcb->xkb.first_event, NULL ) < 0 ) {
g_warning ( "cannot setup XKB extension!" );
return FALSE;
}
xcb->xkb.device_id = xkb_x11_get_core_keyboard_device_id ( xcb->connection );
enum
{
required_events =
( XCB_XKB_EVENT_TYPE_NEW_KEYBOARD_NOTIFY |
XCB_XKB_EVENT_TYPE_MAP_NOTIFY |
XCB_XKB_EVENT_TYPE_STATE_NOTIFY ),
required_nkn_details =
( XCB_XKB_NKN_DETAIL_KEYCODES ),
required_map_parts =
( XCB_XKB_MAP_PART_KEY_TYPES |
XCB_XKB_MAP_PART_KEY_SYMS |
XCB_XKB_MAP_PART_MODIFIER_MAP |
XCB_XKB_MAP_PART_EXPLICIT_COMPONENTS |
XCB_XKB_MAP_PART_KEY_ACTIONS |
XCB_XKB_MAP_PART_VIRTUAL_MODS |
XCB_XKB_MAP_PART_VIRTUAL_MOD_MAP ),
required_state_details =
( XCB_XKB_STATE_PART_MODIFIER_BASE |
XCB_XKB_STATE_PART_MODIFIER_LATCH |
XCB_XKB_STATE_PART_MODIFIER_LOCK |
XCB_XKB_STATE_PART_GROUP_BASE |
XCB_XKB_STATE_PART_GROUP_LATCH |
XCB_XKB_STATE_PART_GROUP_LOCK ),
};
static const xcb_xkb_select_events_details_t details = {
.affectNewKeyboard = required_nkn_details,
.newKeyboardDetails = required_nkn_details,
.affectState = required_state_details,
.stateDetails = required_state_details,
};
xcb_xkb_select_events ( xcb->connection, xcb->xkb.device_id, required_events, /* affectWhich */
0, /* clear */
required_events, /* selectAll */
required_map_parts, /* affectMap */
required_map_parts, /* map */
&details );
xcb->bindings = nk_bindings_new ();
xcb->bindings_seat = nk_bindings_seat_new ( xcb->bindings, XKB_CONTEXT_NO_FLAGS );
struct xkb_keymap *keymap = xkb_x11_keymap_new_from_device ( nk_bindings_seat_get_context ( xcb->bindings_seat ), xcb->connection, xcb->xkb.device_id, XKB_KEYMAP_COMPILE_NO_FLAGS );
if ( keymap == NULL ) {
g_warning ( "Failed to get Keymap for current keyboard device." );
return FALSE;
}
struct xkb_state *state = xkb_x11_state_new_from_device ( keymap, xcb->connection, xcb->xkb.device_id );
if ( state == NULL ) {
g_warning ( "Failed to get state object for current keyboard device." );
return FALSE;
}
nk_bindings_seat_update_keymap ( xcb->bindings_seat, keymap, state );
if ( !parse_keys_abe ( xcb->bindings ) ) {
// Error dialog
return FALSE;
}
// determine numlock mask so we can bind on keys with and without it
x11_create_frequently_used_atoms ( );
if ( xcb_connection_has_error ( xcb->connection ) ) {
g_warning ( "Connection has error" );
return FALSE;
}
// startup not.
xcb->sndisplay = sn_xcb_display_new ( xcb->connection, error_trap_push, error_trap_pop );
if ( xcb_connection_has_error ( xcb->connection ) ) {
g_warning ( "Connection has error" );
return FALSE;
}
if ( xcb->sndisplay != NULL ) {
xcb->sncontext = sn_launchee_context_new_from_environment ( xcb->sndisplay, xcb->screen_nbr );
}
if ( xcb_connection_has_error ( xcb->connection ) ) {
g_warning ( "Connection has error" );
return FALSE;
}
return TRUE;
}
void x11_create_visual_and_colormap ( void )
{
xcb_depth_t *root_depth = NULL;
xcb_depth_iterator_t depth_iter;
for ( depth_iter = xcb_screen_allowed_depths_iterator ( xcb->screen ); depth_iter.rem; xcb_depth_next ( &depth_iter ) ) {
xcb_depth_t *d = depth_iter.data;
xcb_visualtype_iterator_t visual_iter;
for ( visual_iter = xcb_depth_visuals_iterator ( d ); visual_iter.rem; xcb_visualtype_next ( &visual_iter ) ) {
xcb_visualtype_t *v = visual_iter.data;
if ( ( v->bits_per_rgb_value == 8 ) && ( d->depth == 32 ) && ( v->_class == XCB_VISUAL_CLASS_TRUE_COLOR ) ) {
depth = d;
visual = v;
}
if ( xcb->screen->root_visual == v->visual_id ) {
root_depth = d;
root_visual = v;
}
}
}
if ( visual != NULL ) {
xcb_void_cookie_t c;
xcb_generic_error_t *e;
map = xcb_generate_id ( xcb->connection );
c = xcb_create_colormap_checked ( xcb->connection, XCB_COLORMAP_ALLOC_NONE, map, xcb->screen->root, visual->visual_id );
e = xcb_request_check ( xcb->connection, c );
if ( e ) {
depth = NULL;
visual = NULL;
free ( e );
}
}
if ( visual == NULL ) {
depth = root_depth;
visual = root_visual;
map = xcb->screen->default_colormap;
}
}
/**
* Process X11 events in the main-loop (gui-thread) of the application.
*/
static void main_loop_x11_event_handler_view ( xcb_generic_event_t *ev )
{
RofiViewState *state = rofi_view_get_active ();
if ( state != NULL ) {
rofi_view_itterrate ( state, ev, xcb->bindings_seat );
if ( rofi_view_get_completed ( state ) ) {
// This menu is done.
rofi_view_finalize ( state );
// cleanup
if ( rofi_view_get_active () == NULL ) {
g_main_loop_quit ( xcb->main_loop );
}
}
}
}
gboolean main_loop_x11_event_handler ( xcb_generic_event_t *ev, G_GNUC_UNUSED gpointer user_data )
{
if ( ev == NULL ) {
int status = xcb_connection_has_error ( xcb->connection );
if ( status > 0 ) {
g_warning ( "The XCB connection to X server had a fatal error: %d", status );
g_main_loop_quit ( xcb->main_loop );
return G_SOURCE_REMOVE;
}
else {
g_warning ( "main_loop_x11_event_handler: ev == NULL, status == %d", status );
return G_SOURCE_CONTINUE;
}
}
uint8_t type = ev->response_type & ~0x80;
if ( type == xcb->xkb.first_event ) {
switch ( ev->pad0 )
{
case XCB_XKB_MAP_NOTIFY:
{
struct xkb_keymap *keymap = xkb_x11_keymap_new_from_device ( nk_bindings_seat_get_context ( xcb->bindings_seat ), xcb->connection, xcb->xkb.device_id, 0 );
struct xkb_state *state = xkb_x11_state_new_from_device ( keymap, xcb->connection, xcb->xkb.device_id );
nk_bindings_seat_update_keymap ( xcb->bindings_seat, keymap, state );
xkb_keymap_unref ( keymap );
xkb_state_unref ( state );
break;
}
case XCB_XKB_STATE_NOTIFY:
{
xcb_xkb_state_notify_event_t *ksne = (xcb_xkb_state_notify_event_t *) ev;
nk_bindings_seat_update_mask ( xcb->bindings_seat,
ksne->baseMods,
ksne->latchedMods,
ksne->lockedMods,
ksne->baseGroup,
ksne->latchedGroup,
ksne->lockedGroup );
xcb_generic_event_t dev;
dev.response_type = 0;
main_loop_x11_event_handler_view ( &dev );
break;
}
}
return G_SOURCE_CONTINUE;
}
if ( xcb->sndisplay != NULL ) {
sn_xcb_display_process_event ( xcb->sndisplay, ev );
}
main_loop_x11_event_handler_view ( ev );
return G_SOURCE_CONTINUE;
}
xcb_window_t xcb_stuff_get_root_window ( void )
{
return xcb->screen->root;
}
void xcb_stuff_wipe ( void )
{
if ( xcb->connection == NULL ) {
return;
}
g_debug ( "Cleaning up XCB and XKB" );
nk_bindings_seat_free ( xcb->bindings_seat );
nk_bindings_free ( xcb->bindings );
if ( xcb->sncontext != NULL ) {
sn_launchee_context_unref ( xcb->sncontext );
xcb->sncontext = NULL;
}
if ( xcb->sndisplay != NULL ) {
sn_display_unref ( xcb->sndisplay );
xcb->sndisplay = NULL;
}
x11_monitors_free ();
xcb_ewmh_connection_wipe ( &( xcb->ewmh ) );
xcb_flush ( xcb->connection );
xcb_aux_sync ( xcb->connection );
g_water_xcb_source_free ( xcb->source );
xcb->source = NULL;
xcb->connection = NULL;
xcb->screen = NULL;
xcb->screen_nbr = 0;
}
void x11_disable_decoration ( xcb_window_t window )
{
// Flag used to indicate we are setting the decoration type.
const uint32_t MWM_HINTS_DECORATIONS = ( 1 << 1 );
// Motif property data structure
struct MotifWMHints
{
uint32_t flags;
uint32_t functions;
uint32_t decorations;
int32_t inputMode;
uint32_t state;
};
struct MotifWMHints hints;
hints.flags = MWM_HINTS_DECORATIONS;
hints.decorations = 0;
hints.functions = 0;
hints.inputMode = 0;
hints.state = 0;
xcb_atom_t ha = netatoms[_MOTIF_WM_HINTS];
xcb_change_property ( xcb->connection, XCB_PROP_MODE_REPLACE, window, ha, ha, 32, 5, &hints );
}
void x11_helper_discover_window_manager ( void )
{
xcb_window_t wm_win = 0;
xcb_get_property_cookie_t cc = xcb_ewmh_get_supporting_wm_check_unchecked ( &xcb->ewmh,
xcb_stuff_get_root_window () );
if ( xcb_ewmh_get_supporting_wm_check_reply ( &xcb->ewmh, cc, &wm_win, NULL ) ) {
xcb_ewmh_get_utf8_strings_reply_t wtitle;
xcb_get_property_cookie_t cookie = xcb_ewmh_get_wm_name_unchecked ( &( xcb->ewmh ), wm_win );
if ( xcb_ewmh_get_wm_name_reply ( &( xcb->ewmh ), cookie, &wtitle, (void *) 0 ) ) {
if ( wtitle.strings_len > 0 ) {
g_debug ( "Found window manager: %s", wtitle.strings );
if ( g_strcmp0 ( wtitle.strings, "i3" ) == 0 ) {
current_window_manager = WM_I3;
}
else if ( g_strcmp0 ( wtitle.strings, "awesome" ) == 0 ) {
current_window_manager = WM_AWESOME;
}
else if ( g_strcmp0 ( wtitle.strings, "Openbox" ) == 0 ) {
current_window_manager = WM_OPENBOX;
}
}
xcb_ewmh_get_utf8_strings_reply_wipe ( &wtitle );
}
}
}
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