| 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 | |
| 43 | static CFRunLoopSourceRef xpbproxy_dpy_source; |
| 44 | |
| 45 | #ifdef STANDALONE_XPBPROXY |
| 46 | BOOL xpbproxy_prefs_reload = NO; |
| 47 | #endif |
| 48 | |
| 49 | /* Timestamp when the X server last told us it's active */ |
| 50 | static Time last_activation_time; |
| 51 | |
| 52 | static void |
| 53 | x_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 | |
| 89 | static void |
| 90 | xpbproxy_process_xevents(void) |
| 91 | { |
| 92 | NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; |
| 93 | |
| 94 | if (pool == nil) { |
| 95 | ErrorF("unable to allocate/init auto release pool!\n"); |
| 96 | return; |
| 97 | } |
| 98 | |
| 99 | while (XPending(xpbproxy_dpy) != 0) { |
| 100 | XEvent e; |
| 101 | |
| 102 | XNextEvent(xpbproxy_dpy, &e); |
| 103 | |
| 104 | switch (e.type) { |
| 105 | case SelectionClear: |
| 106 | if ([xpbproxy_selection_object ()is_active]) |
| 107 | [xpbproxy_selection_object () clear_event:&e.xselectionclear]; |
| 108 | break; |
| 109 | |
| 110 | case SelectionRequest: |
| 111 | [xpbproxy_selection_object () request_event:&e.xselectionrequest]; |
| 112 | break; |
| 113 | |
| 114 | case SelectionNotify: |
| 115 | [xpbproxy_selection_object () notify_event:&e.xselection]; |
| 116 | break; |
| 117 | |
| 118 | case PropertyNotify: |
| 119 | [xpbproxy_selection_object () property_event:&e.xproperty]; |
| 120 | break; |
| 121 | |
| 122 | default: |
| 123 | if (e.type >= xpbproxy_apple_wm_event_base && |
| 124 | e.type < xpbproxy_apple_wm_event_base + |
| 125 | AppleWMNumberEvents) { |
| 126 | x_event_apple_wm_notify((XAppleWMNotifyEvent *)&e); |
| 127 | } |
| 128 | else if (e.type == xpbproxy_xfixes_event_base + |
| 129 | XFixesSelectionNotify) { |
| 130 | [xpbproxy_selection_object () xfixes_selection_notify:( |
| 131 | XFixesSelectionNotifyEvent *)&e]; |
| 132 | } |
| 133 | break; |
| 134 | } |
| 135 | |
| 136 | XFlush(xpbproxy_dpy); |
| 137 | } |
| 138 | |
| 139 | [pool release]; |
| 140 | } |
| 141 | |
| 142 | static BOOL |
| 143 | add_input_socket(int sock, CFOptionFlags callback_types, |
| 144 | CFSocketCallBack callback, const CFSocketContext *ctx, |
| 145 | CFRunLoopSourceRef *cf_source) |
| 146 | { |
| 147 | CFSocketRef cf_sock; |
| 148 | |
| 149 | cf_sock = CFSocketCreateWithNative(kCFAllocatorDefault, sock, |
| 150 | callback_types, callback, ctx); |
| 151 | if (cf_sock == NULL) { |
| 152 | close(sock); |
| 153 | return FALSE; |
| 154 | } |
| 155 | |
| 156 | *cf_source = CFSocketCreateRunLoopSource(kCFAllocatorDefault, |
| 157 | cf_sock, 0); |
| 158 | CFRelease(cf_sock); |
| 159 | |
| 160 | if (*cf_source == NULL) |
| 161 | return FALSE; |
| 162 | |
| 163 | CFRunLoopAddSource(CFRunLoopGetCurrent(), |
| 164 | *cf_source, kCFRunLoopDefaultMode); |
| 165 | return TRUE; |
| 166 | } |
| 167 | |
| 168 | static void |
| 169 | x_input_callback(CFSocketRef sock, CFSocketCallBackType type, |
| 170 | CFDataRef address, const void *data, void *info) |
| 171 | { |
| 172 | |
| 173 | #ifdef STANDALONE_XPBPROXY |
| 174 | if (xpbproxy_prefs_reload) { |
| 175 | [xpbproxy_selection_object ()reload_preferences]; |
| 176 | xpbproxy_prefs_reload = NO; |
| 177 | } |
| 178 | #endif |
| 179 | |
| 180 | xpbproxy_process_xevents(); |
| 181 | } |
| 182 | |
| 183 | BOOL |
| 184 | xpbproxy_input_register(void) |
| 185 | { |
| 186 | return add_input_socket(ConnectionNumber( |
| 187 | xpbproxy_dpy), kCFSocketReadCallBack, |
| 188 | x_input_callback, NULL, &xpbproxy_dpy_source); |
| 189 | } |