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rofi/source/x11-helper.c
Dave Davenport bd412b9975 Grab mouse pointer with keyboard.
2016-05-09 08:47:28 +02:00

806 lines
27 KiB
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/**
* rofi
*
* MIT/X11 License
* Copyright (c) 2012 Sean Pringle <sean.pringle@gmail.com>
* Modified 2013-2016 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.
*
*/
#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 <xcb/xcb.h>
#include <xcb/xinerama.h>
#include "xcb-internal.h"
#include "xcb.h"
#include "settings.h"
#include "helper.h"
#include <rofi.h>
#define OVERLAP( a, b, c, \
d ) ( ( ( a ) == ( c ) && \
( b ) == ( d ) ) || \
MIN ( ( a ) + ( b ), ( c ) + ( d ) ) - MAX ( ( a ), ( c ) ) > 0 )
#define INTERSECT( x, y, w, h, x1, y1, w1, \
h1 ) ( OVERLAP ( ( x ), ( w ), ( x1 ), \
( w1 ) ) && OVERLAP ( ( y ), ( h ), ( y1 ), ( h1 ) ) )
#include "x11-helper.h"
#include "xkb-internal.h"
struct _xcb_stuff xcb_int = {
.connection = NULL,
.screen = NULL,
.screen_nbr = -1,
.sndisplay = NULL,
.sncontext = NULL,
.has_xinerama = FALSE,
};
xcb_stuff *xcb = &xcb_int;
enum
{
X11MOD_SHIFT,
X11MOD_CONTROL,
X11MOD_ALT,
X11MOD_META,
X11MOD_SUPER,
X11MOD_HYPER,
X11MOD_ANY,
NUM_X11MOD
};
xcb_depth_t *depth = NULL;
xcb_visualtype_t *visual = NULL;
xcb_colormap_t map = XCB_COLORMAP_NONE;
xcb_depth_t *root_depth = NULL;
xcb_visualtype_t *root_visual = NULL;
xcb_atom_t netatoms[NUM_NETATOMS];
const char *netatom_names[] = { EWMH_ATOMS ( ATOM_CHAR ) };
static unsigned int x11_mod_masks[NUM_X11MOD];
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 = NULL;
cookie = xcb_get_property ( c,
0,
screen->root,
atom,
XCB_ATOM_PIXMAP,
0,
1 );
reply = xcb_get_property_reply ( c, cookie, NULL );
if ( reply &&
( xcb_get_property_value_length ( reply ) == sizeof ( xcb_pixmap_t ) ) ) {
rootpixmap = (xcb_pixmap_t *) xcb_get_property_value ( reply );
}
else {
*rootpixmap = XCB_NONE;
}
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 );
}
// 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 );
}
int monitor_get_smallest_size ( void )
{
xcb_generic_error_t *error;
int size = MIN ( xcb->screen->width_in_pixels, xcb->screen->height_in_pixels );
if ( !xcb->has_xinerama ) {
return size;
}
xcb_xinerama_query_screens_cookie_t cookie_screen;
cookie_screen = xcb_xinerama_query_screens ( xcb->connection );
xcb_xinerama_query_screens_reply_t *query_screens;
query_screens = xcb_xinerama_query_screens_reply ( xcb->connection, cookie_screen, &error );
if ( error ) {
fprintf ( stderr, "Error getting screen info\n" );
return size;
}
xcb_xinerama_screen_info_t *screens = xcb_xinerama_query_screens_screen_info ( query_screens );
int len = xcb_xinerama_query_screens_screen_info_length ( query_screens );
for ( int i = 0; i < len; i++ ) {
xcb_xinerama_screen_info_t *info = &screens[i];
size = MIN ( info->width, size );
size = MIN ( info->height, size );
}
free ( query_screens );
return size;
}
int monitor_get_dimension ( int monitor, workarea *mon )
{
xcb_generic_error_t *error = NULL;
memset ( mon, 0, sizeof ( workarea ) );
mon->w = xcb->screen->width_in_pixels;
mon->h = xcb->screen->height_in_pixels;
if ( !xcb->has_xinerama ) {
return FALSE;
}
xcb_xinerama_query_screens_cookie_t cookie_screen;
cookie_screen = xcb_xinerama_query_screens ( xcb->connection );
xcb_xinerama_query_screens_reply_t *query_screens;
query_screens = xcb_xinerama_query_screens_reply ( xcb->connection, cookie_screen, &error );
if ( error ) {
fprintf ( stderr, "Error getting screen info\n" );
return FALSE;
}
xcb_xinerama_screen_info_t *screens = xcb_xinerama_query_screens_screen_info ( query_screens );
int len = xcb_xinerama_query_screens_screen_info_length ( query_screens );
if ( monitor < len ) {
xcb_xinerama_screen_info_t *info = &screens[monitor];
mon->w = info->width;
mon->h = info->height;
mon->x = info->x_org;
mon->y = info->y_org;
free ( query_screens );
return TRUE;
}
free ( query_screens );
return FALSE;
}
// find the dimensions of the monitor displaying point x,y
void monitor_dimensions ( int x, int y, workarea *mon )
{
xcb_generic_error_t *error = NULL;
memset ( mon, 0, sizeof ( workarea ) );
mon->w = xcb->screen->width_in_pixels;
mon->h = xcb->screen->height_in_pixels;
if ( !xcb->has_xinerama ) {
return;
}
xcb_xinerama_query_screens_cookie_t cookie_screen;
cookie_screen = xcb_xinerama_query_screens ( xcb->connection );
xcb_xinerama_query_screens_reply_t *query_screens;
query_screens = xcb_xinerama_query_screens_reply ( xcb->connection, cookie_screen, &error );
if ( error ) {
fprintf ( stderr, "Error getting screen info\n" );
return;
}
xcb_xinerama_screen_info_t *screens = xcb_xinerama_query_screens_screen_info ( query_screens );
int len = xcb_xinerama_query_screens_screen_info_length ( query_screens );
for ( int i = 0; i < len; i++ ) {
xcb_xinerama_screen_info_t *info = &screens[i];
if ( INTERSECT ( x, y, 1, 1, info->x_org, info->y_org, info->width, info->height ) ) {
mon->w = info->width;
mon->h = info->height;
mon->x = info->x_org;
mon->y = info->y_org;
break;
}
}
free ( query_screens );
}
/**
* @param x The x position of the mouse [out]
* @param y The y position of the mouse [out]
*
* find mouse pointer location
*
* @returns 1 when found
*/
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 1;
}
return 0;
}
// determine which monitor holds the active window, or failing that the mouse pointer
void monitor_active ( workarea *mon )
{
xcb_window_t root = xcb->screen->root;
int x, y;
if ( config.monitor >= 0 ) {
if ( monitor_get_dimension ( config.monitor, mon ) ) {
return;
}
fprintf ( stderr, "Failed to find selected monitor.\n" );
}
if ( config.monitor == -3 ) {
if ( pointer_get ( root, &x, &y ) ) {
monitor_dimensions ( x, y, mon );
mon->x = x;
mon->y = y;
return;
}
}
// Get the current desktop.
unsigned int current_desktop = 0;
if ( config.monitor == -1 && xcb_ewmh_get_current_desktop_reply ( &xcb->ewmh,
xcb_ewmh_get_current_desktop ( &xcb->ewmh, xcb->screen_nbr ),
&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;
}
xcb_ewmh_get_desktop_viewport_reply_wipe ( &vp );
}
}
xcb_window_t active_window;
if ( xcb_ewmh_get_active_window_reply ( &xcb->ewmh,
xcb_ewmh_get_active_window ( &xcb->ewmh, xcb->screen_nbr ), &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 ( config.monitor == -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;
mon->t = r->border_width;
mon->b = r->border_width;
mon->l = r->border_width;
mon->r = r->border_width;
free ( r );
free ( t );
return;
}
else if ( config.monitor == -4 ) {
monitor_dimensions ( t->dst_x, t->dst_y, mon );
free ( r );
free ( t );
return;
}
}
free ( r );
}
}
if ( pointer_get ( root, &x, &y ) ) {
monitor_dimensions ( x, y, mon );
return;
}
monitor_dimensions ( 0, 0, mon );
}
int take_pointer ( xcb_window_t w )
{
for ( int i = 0; i < 500; i++ ) {
if ( xcb_connection_has_error ( xcb->connection ) ) {
fprintf ( stderr, "Connection has error\n" );
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 );
}
usleep ( 1000 );
}
fprintf ( stderr, "Failed to grab pointer.\n" );
return 0;
}
int take_keyboard ( xcb_window_t w )
{
for ( int i = 0; i < 500; i++ ) {
if ( xcb_connection_has_error ( xcb->connection ) ) {
fprintf ( stderr, "Connection has error\n" );
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 );
}
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 );
}
static unsigned int x11_find_mod_mask ( xkb_stuff *xkb, ... )
{
va_list names;
const char *name;
xkb_mod_index_t i;
unsigned int mask = 0;
va_start ( names, xkb );
while ( ( name = va_arg ( names, const char * ) ) != NULL ) {
i = xkb_keymap_mod_get_index ( xkb->keymap, name );
if ( i != XKB_MOD_INVALID ) {
mask |= 1 << i;
}
}
va_end ( names );
return mask;
}
static void x11_figure_out_masks ( xkb_stuff *xkb )
{
x11_mod_masks[X11MOD_SHIFT] = x11_find_mod_mask ( xkb, XKB_MOD_NAME_SHIFT, NULL );
x11_mod_masks[X11MOD_CONTROL] = x11_find_mod_mask ( xkb, XKB_MOD_NAME_CTRL, NULL );
x11_mod_masks[X11MOD_ALT] = x11_find_mod_mask ( xkb, XKB_MOD_NAME_ALT, "Alt", "LAlt", "RAlt", "AltGr", "Mod5", "LevelThree", NULL );
x11_mod_masks[X11MOD_META] = x11_find_mod_mask ( xkb, "Meta", NULL );
x11_mod_masks[X11MOD_SUPER] = x11_find_mod_mask ( xkb, XKB_MOD_NAME_LOGO, "Super", NULL );
x11_mod_masks[X11MOD_HYPER] = x11_find_mod_mask ( xkb, "Hyper", NULL );
gsize i;
for ( i = 0; i < X11MOD_ANY; ++i ) {
x11_mod_masks[X11MOD_ANY] |= x11_mod_masks[i];
}
}
unsigned int x11_canonalize_mask ( unsigned int mask )
{
// Bits 13 and 14 of the modifiers together are the group number, and
// should be ignored when looking up key bindings
mask &= x11_mod_masks[X11MOD_ANY];
gsize i;
for ( i = 0; i < X11MOD_ANY; ++i ) {
if ( mask & x11_mod_masks[i] ) {
mask |= x11_mod_masks[i];
}
}
return mask;
}
unsigned int x11_get_current_mask ( xkb_stuff *xkb )
{
unsigned int mask = 0;
for ( gsize i = 0; i < xkb_keymap_num_mods ( xkb->keymap ); ++i ) {
if ( xkb_state_mod_index_is_active ( xkb->state, i, XKB_STATE_MODS_EFFECTIVE ) ) {
mask |= ( 1 << i );
}
}
return x11_canonalize_mask ( mask );
}
// convert a Mod+key arg to mod mask and keysym
gboolean x11_parse_key ( char *combo, unsigned int *mod, xkb_keysym_t *key, gboolean *release )
{
GString *str = g_string_new ( "" );
unsigned int modmask = 0;
if ( g_str_has_prefix ( combo, "!" ) ) {
++combo;
*release = TRUE;
}
if ( strcasestr ( combo, "shift" ) ) {
modmask |= x11_mod_masks[X11MOD_SHIFT];
if ( x11_mod_masks[X11MOD_SHIFT] == 0 ) {
g_string_append_printf ( str, "X11 configured keyboard has no <b>Shift</b> key.\n" );
}
}
if ( strcasestr ( combo, "control" ) ) {
modmask |= x11_mod_masks[X11MOD_CONTROL];
if ( x11_mod_masks[X11MOD_CONTROL] == 0 ) {
g_string_append_printf ( str, "X11 configured keyboard has no <b>Control</b> key.\n" );
}
}
if ( strcasestr ( combo, "alt" ) ) {
modmask |= x11_mod_masks[X11MOD_ALT];
if ( x11_mod_masks[X11MOD_ALT] == 0 ) {
g_string_append_printf ( str, "X11 configured keyboard has no <b>Alt</b> key.\n" );
}
}
if ( strcasestr ( combo, "super" ) ) {
modmask |= x11_mod_masks[X11MOD_SUPER];
if ( x11_mod_masks[X11MOD_SUPER] == 0 ) {
g_string_append_printf ( str, "X11 configured keyboard has no <b>Super</b> key.\n" );
}
}
if ( strcasestr ( combo, "meta" ) ) {
modmask |= x11_mod_masks[X11MOD_META];
if ( x11_mod_masks[X11MOD_META] == 0 ) {
g_string_append_printf ( str, "X11 configured keyboard has no <b>Meta</b> key.\n" );
}
}
if ( strcasestr ( combo, "hyper" ) ) {
modmask |= x11_mod_masks[X11MOD_HYPER];
if ( x11_mod_masks[X11MOD_HYPER] == 0 ) {
g_string_append_printf ( str, "X11 configured keyboard has no <b>Hyper</b> key.\n" );
}
}
int seen_mod = FALSE;
if ( strcasestr ( combo, "Mod" ) ) {
seen_mod = TRUE;
}
// Find location of modifier (if it exists)
char i = strlen ( combo );
while ( i > 0 && !strchr ( "-+", combo[i - 1] ) ) {
i--;
}
// if there's no "-" or "+", we might be binding directly to a modifier key - no modmask
if ( i == 0 ) {
*mod = 0;
}
else {
*mod = modmask;
}
// Parse key
xkb_keysym_t sym = XKB_KEY_NoSymbol;
if ( ( modmask & x11_mod_masks[X11MOD_SHIFT] ) != 0 ) {
gchar * str = g_utf8_next_char ( combo + i );
// If it is a single char, we make a capital out of it.
if ( str != NULL && *str == '\0' ) {
int l = 0;
char buff[8];
gunichar v = g_utf8_get_char ( combo + i );
gunichar u = g_unichar_toupper ( v );
if ( ( l = g_unichar_to_utf8 ( u, buff ) ) ) {
buff[l] = '\0';
sym = xkb_keysym_from_name ( buff, XKB_KEYSYM_NO_FLAGS );
}
}
}
if ( sym == XKB_KEY_NoSymbol ) {
sym = xkb_keysym_from_name ( combo + i, XKB_KEYSYM_CASE_INSENSITIVE );
}
if ( sym == XKB_KEY_NoSymbol || ( !modmask && ( strchr ( combo, '-' ) || strchr ( combo, '+' ) ) ) ) {
g_string_append_printf ( str, "Sorry, rofi cannot understand the key combination: <i>%s</i>\n", combo );
g_string_append ( str, "\nRofi supports the following modifiers:\n\t" );
g_string_append ( str, "<i>Shift,Control,Alt,Super,Meta,Hyper</i>" );
if ( seen_mod ) {
g_string_append ( str, "\n\n<b>Mod1,Mod2,Mod3,Mod4,Mod5 are no longer supported, use one of the above.</b>" );
}
}
if ( str->len > 0 ) {
rofi_view_error_dialog ( str->str, TRUE );
g_string_free ( str, TRUE );
return FALSE;
}
g_string_free ( str, TRUE );
*key = sym;
return TRUE;
}
void x11_set_window_opacity ( xcb_window_t box, unsigned int opacity )
{
// Scale 0-100 to 0 - UINT32_MAX.
unsigned int opacity_set = ( unsigned int ) ( ( opacity / 100.0 ) * UINT32_MAX );
xcb_change_property ( xcb->connection, XCB_PROP_MODE_REPLACE, box,
netatoms[_NET_WM_WINDOW_OPACITY], XCB_ATOM_CARDINAL, 32, 1L, &opacity_set );
}
/**
* @param display The connection to the X server.
*
* Fill in the list of 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 );
}
}
}
void x11_setup ( xkb_stuff *xkb )
{
// determine numlock mask so we can bind on keys with and without it
x11_figure_out_masks ( xkb );
x11_create_frequently_used_atoms ( );
}
void x11_create_visual_and_colormap ( void )
{
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 ( ( 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;
}
}
Color color_get ( const char *const name )
{
char *copy = g_strdup ( name );
char *cname = g_strstrip ( copy );
union
{
struct
{
uint8_t b;
uint8_t g;
uint8_t r;
uint8_t a;
} sep;
uint32_t pixel;
} color = {
.pixel = 0xffffffff,
};
// Special format.
if ( strncmp ( cname, "argb:", 5 ) == 0 ) {
color.pixel = strtoul ( &cname[5], NULL, 16 );
}
else if ( strncmp ( cname, "#", 1 ) == 0 ) {
unsigned long val = strtoul ( &cname[1], NULL, 16 );
ssize_t length = strlen ( &cname[1] );
switch ( length )
{
case 3:
color.sep.a = 0xff;
color.sep.r = 16 * ( ( val & 0xF00 ) >> 8 );
color.sep.g = 16 * ( ( val & 0x0F0 ) >> 4 );
color.sep.b = 16 * ( val & 0x00F );
break;
case 6:
color.pixel = val;
color.sep.a = 0xff;
break;
case 8:
color.pixel = val;
break;
default:
break;
}
}
else {
xcb_alloc_named_color_cookie_t cc = xcb_alloc_named_color ( xcb->connection,
map, strlen ( cname ), cname );
xcb_alloc_named_color_reply_t *r = xcb_alloc_named_color_reply ( xcb->connection, cc, NULL );
if ( r ) {
color.sep.a = 0xFF;
color.sep.r = r->visual_red;
color.sep.g = r->visual_green;
color.sep.b = r->visual_blue;
free ( r );
}
}
g_free ( copy );
Color ret = {
.red = color.sep.r / 255.0,
.green = color.sep.g / 255.0,
.blue = color.sep.b / 255.0,
.alpha = color.sep.a / 255.0,
};
return ret;
}
void x11_helper_set_cairo_rgba ( cairo_t *d, Color col )
{
cairo_set_source_rgba ( d, col.red, col.green, col.blue, col.alpha );
}
/**
* Color cache.
*
* This stores the current color until
*/
enum
{
BACKGROUND,
BORDER,
SEPARATOR
};
static struct
{
Color color;
unsigned int set;
} color_cache[3];
void color_background ( cairo_t *d )
{
if ( !color_cache[BACKGROUND].set ) {
gchar **vals = g_strsplit ( config.color_window, ",", 3 );
if ( vals != NULL && vals[0] != NULL ) {
color_cache[BACKGROUND].color = color_get ( vals[0] );
}
g_strfreev ( vals );
color_cache[BACKGROUND].set = TRUE;
}
x11_helper_set_cairo_rgba ( d, color_cache[BACKGROUND].color );
}
void color_border ( cairo_t *d )
{
if ( !color_cache[BORDER].set ) {
gchar **vals = g_strsplit ( config.color_window, ",", 3 );
if ( vals != NULL && vals[0] != NULL && vals[1] != NULL ) {
color_cache[BORDER].color = color_get ( vals[1] );
}
g_strfreev ( vals );
color_cache[BORDER].set = TRUE;
}
x11_helper_set_cairo_rgba ( d, color_cache[BORDER].color );
}
void color_separator ( cairo_t *d )
{
if ( !color_cache[SEPARATOR].set ) {
gchar **vals = g_strsplit ( config.color_window, ",", 3 );
if ( vals != NULL && vals[0] != NULL && vals[1] != NULL && vals[2] != NULL ) {
color_cache[SEPARATOR].color = color_get ( vals[2] );
}
else if ( vals != NULL && vals[0] != NULL && vals[1] != NULL ) {
color_cache[SEPARATOR].color = color_get ( vals[1] );
}
g_strfreev ( vals );
color_cache[SEPARATOR].set = TRUE;
}
x11_helper_set_cairo_rgba ( d, color_cache[SEPARATOR].color );
}
xcb_window_t xcb_stuff_get_root_window ( xcb_stuff *xcb )
{
return xcb->screen->root;
}
void xcb_stuff_wipe ( xcb_stuff *xcb )
{
if ( xcb->connection != NULL ) {
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;
}
xcb_disconnect ( xcb->connection );
xcb->connection = NULL;
xcb->screen = NULL;
xcb->screen_nbr = 0;
}
}
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