1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
/* Copyright (c) 2012 David Snyder, Benjamin Carr, Braden Wooley
*
* rootimg_api.h
*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <xcb/xcb.h>
#include <xcb/xcb_aux.h>
#include <xcb/xcb_keysyms.h>
#include <xcwm/xcwm.h>
#include "xcwm_internal.h"
#include <string.h>
// This init function needs set the window to be registered for events!
// First one we should handle is damage
xcwm_context_t *
xcwm_context_open(char *display)
{
xcwm_context_t *root_context;
xcb_connection_t *conn;
int conn_screen;
xcb_screen_t *root_screen;
xcb_window_t root_window_id;
xcb_void_cookie_t cookie;
uint32_t mask_values[1];
conn = xcb_connect(display, &conn_screen);
if (xcb_connection_has_error(conn)) {
fprintf(stderr, "Cannot open display\n");
exit(1);
}
root_screen = xcb_aux_get_screen(conn, conn_screen);
root_window_id = root_screen->root;
// Set the mask for the root window so we know when new windows
// are created on the root. This is where we add masks for the events
// we care about catching on the root window.
mask_values[0] = XCB_EVENT_MASK_KEY_PRESS |
XCB_EVENT_MASK_KEY_RELEASE |
XCB_EVENT_MASK_BUTTON_PRESS |
XCB_EVENT_MASK_BUTTON_RELEASE |
XCB_EVENT_MASK_POINTER_MOTION |
XCB_EVENT_MASK_STRUCTURE_NOTIFY |
XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY |
XCB_EVENT_MASK_ENTER_WINDOW |
XCB_EVENT_MASK_LEAVE_WINDOW |
XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT;
cookie = xcb_change_window_attributes_checked(conn,
root_window_id,
XCB_CW_EVENT_MASK,
mask_values);
if (_xcwm_request_check(conn, cookie,
"Could not set root window mask.")) {
fprintf(stderr, "Is another window manager running?\n");
xcb_disconnect(conn);
exit(1);
}
xcb_flush(conn);
root_context = malloc(sizeof(xcwm_context_t));
assert(root_context);
root_context->root_window = malloc(sizeof(xcwm_window_t));
assert(root_context->root_window);
root_context->root_window->bounds = malloc(sizeof(xcwm_rect_t));
root_context->root_window->dmg_bounds = malloc(sizeof(xcwm_rect_t));
assert(root_context->root_window->bounds);
assert(root_context->root_window->dmg_bounds);
root_context->atoms = malloc(sizeof(xcwm_wm_atoms_t));
assert(root_context->atoms);
root_context->conn = conn;
root_context->conn_screen = conn_screen;
root_context->root_window->parent = 0;
root_context->root_window->window_id = root_window_id;
/* FIXME: Should we have a circular assignment like this? */
root_context->root_window->context = root_context;
/* Set width, height, x, & y from root_screen into the xcwm_context_t */
root_context->root_window->bounds->width = root_screen->width_in_pixels;
root_context->root_window->bounds->height = root_screen->height_in_pixels;
root_context->root_window->bounds->x = 0;
root_context->root_window->bounds->y = 0;
_xcwm_init_composite(root_context);
_xcwm_init_damage(root_context);
_xcwm_init_xfixes(root_context);
/* Add the root window to our list of windows being managed */
_xcwm_add_window(root_context->root_window);
_xcwm_init_extension(conn, "XTEST");
_xcwm_init_extension(conn, "XKEYBOARD");
_xcwm_atoms_init(root_context);
return root_context;
}
/* Close all windows, the connection, as well as the event loop */
void
xcwm_context_close(xcwm_context_t *context)
{
_xcwm_window_node *head = _xcwm_window_list_head;
xcb_flush(context->conn);
// Close all windows
while (head) {
xcwm_window_request_close(head->window);
_xcwm_window_list_head = head->next;
free(head);
head = _xcwm_window_list_head;
}
/* Free atom related stuff */
_xcwm_atoms_release(context);
free(context->atoms);
// Terminate the event loop
if (_xcwm_event_stop_loop() != 1) {
printf("Event loop failed to close\n");
}
// Disconnect from the display
xcb_disconnect(context->conn);
return;
}
xcwm_window_t *
xcwm_context_get_root_window(xcwm_context_t const *context)
{
return context->root_window;
}
|
