xref: /OK3568_Linux_fs/external/xserver/hw/xquartz/pbproxy/x-input.m (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1/* x-input.m -- event handling
2 *
3 * Copyright (c) 2002-2012 Apple Inc. All rights reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person
6 * obtaining a copy of this software and associated documentation files
7 * (the "Software"), to deal in the Software without restriction,
8 * including without limitation the rights to use, copy, modify, merge,
9 * publish, distribute, sublicense, and/or sell copies of the Software,
10 * and to permit persons to whom the Software is furnished to do so,
11 * subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be
14 * included in all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NONINFRINGEMENT.  IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT
20 * HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
21 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
23 * DEALINGS IN THE SOFTWARE.
24 *
25 * Except as contained in this notice, the name(s) of the above
26 * copyright holders shall not be used in advertising or otherwise to
27 * promote the sale, use or other dealings in this Software without
28 * prior written authorization.
29 */
30
31#include "pbproxy.h"
32#import "x-selection.h"
33
34#include <CoreFoundation/CFSocket.h>
35#include <CoreFoundation/CFRunLoop.h>
36
37#include <X11/Xatom.h>
38#include <X11/keysym.h>
39#include <X11/extensions/applewm.h>
40
41#include <unistd.h>
42
43static CFRunLoopSourceRef xpbproxy_dpy_source;
44
45#ifdef STANDALONE_XPBPROXY
46BOOL xpbproxy_prefs_reload = NO;
47#endif
48
49/* Timestamp when the X server last told us it's active */
50static Time last_activation_time;
51
52static void
53x_event_apple_wm_notify(XAppleWMNotifyEvent *e)
54{
55    int type = e->type - xpbproxy_apple_wm_event_base;
56    int kind = e->kind;
57
58    /* We want to reload prefs even if we're not active */
59    if (type == AppleWMActivationNotify &&
60        kind == AppleWMReloadPreferences)
61        [xpbproxy_selection_object ()reload_preferences];
62
63    if (![xpbproxy_selection_object ()is_active])
64        return;
65
66    switch (type) {
67    case AppleWMActivationNotify:
68        switch (kind) {
69        case AppleWMIsActive:
70            last_activation_time = e->time;
71            [xpbproxy_selection_object () x_active:e->time];
72            break;
73
74        case AppleWMIsInactive:
75            [xpbproxy_selection_object () x_inactive:e->time];
76            break;
77        }
78        break;
79
80    case AppleWMPasteboardNotify:
81        switch (kind) {
82        case AppleWMCopyToPasteboard:
83            [xpbproxy_selection_object () x_copy:e->time];
84        }
85        break;
86    }
87}
88
89static void
90xpbproxy_process_xevents(void)
91{
92    while (XPending(xpbproxy_dpy) != 0) { @autoreleasepool {
93        XEvent e;
94
95        XNextEvent(xpbproxy_dpy, &e);
96
97        switch (e.type) {
98        case SelectionClear:
99            if ([xpbproxy_selection_object ()is_active])
100                [xpbproxy_selection_object () clear_event:&e.xselectionclear];
101            break;
102
103        case SelectionRequest:
104            [xpbproxy_selection_object () request_event:&e.xselectionrequest];
105            break;
106
107        case SelectionNotify:
108            [xpbproxy_selection_object () notify_event:&e.xselection];
109            break;
110
111        case PropertyNotify:
112            [xpbproxy_selection_object () property_event:&e.xproperty];
113            break;
114
115        default:
116            if (e.type >= xpbproxy_apple_wm_event_base &&
117                e.type < xpbproxy_apple_wm_event_base +
118                AppleWMNumberEvents) {
119                x_event_apple_wm_notify((XAppleWMNotifyEvent *)&e);
120            }
121            else if (e.type == xpbproxy_xfixes_event_base +
122                     XFixesSelectionNotify) {
123                [xpbproxy_selection_object () xfixes_selection_notify:(
124                     XFixesSelectionNotifyEvent *)&e];
125            }
126            break;
127        }
128
129        XFlush(xpbproxy_dpy);
130    }}
131}
132
133static BOOL
134add_input_socket(int sock, CFOptionFlags callback_types,
135                 CFSocketCallBack callback, const CFSocketContext *ctx,
136                 CFRunLoopSourceRef *cf_source)
137{
138    CFSocketRef cf_sock;
139
140    cf_sock = CFSocketCreateWithNative(kCFAllocatorDefault, sock,
141                                       callback_types, callback, ctx);
142    if (cf_sock == NULL) {
143        close(sock);
144        return FALSE;
145    }
146
147    *cf_source = CFSocketCreateRunLoopSource(kCFAllocatorDefault,
148                                             cf_sock, 0);
149    CFRelease(cf_sock);
150
151    if (*cf_source == NULL)
152        return FALSE;
153
154    CFRunLoopAddSource(CFRunLoopGetCurrent(),
155                       *cf_source, kCFRunLoopDefaultMode);
156    return TRUE;
157}
158
159static void
160x_input_callback(CFSocketRef sock, CFSocketCallBackType type,
161                 CFDataRef address, const void *data, void *info)
162{
163
164#ifdef STANDALONE_XPBPROXY
165    if (xpbproxy_prefs_reload) {
166        [xpbproxy_selection_object ()reload_preferences];
167        xpbproxy_prefs_reload = NO;
168    }
169#endif
170
171    xpbproxy_process_xevents();
172}
173
174BOOL
175xpbproxy_input_register(void)
176{
177    return add_input_socket(ConnectionNumber(
178                                xpbproxy_dpy), kCFSocketReadCallBack,
179                            x_input_callback, NULL, &xpbproxy_dpy_source);
180}
181