CyteKit/dispatchEvent.mm

   1 /* Cydia - iPhone UIKit Front-End for Debian APT
   2  * Copyright (C) 2008-2015  Jay Freeman (saurik)
   3 */
   4
   5 /* GNU General Public License, Version 3 {{{ */
   6 /*
   7  * Cydia is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published
   9  * by the Free Software Foundation, either version 3 of the License,
  10  * or (at your option) any later version.
  11  *
  12  * Cydia is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with Cydia.  If not, see <http://www.gnu.org/licenses/>.
  19 **/
  20 /* }}} */
  21
  22 #include "CyteKit/UCPlatform.h"
  23
  24 #include "CyteKit/dispatchEvent.h"
  25 #include "CyteKit/WebThreadLocked.hpp"
  26
  27 #include "Substrate.hpp"
  28
  29 @implementation UIWebDocumentView (CyteDispatchEvent)
  30
  31 - (void) dispatchEvent:(NSString *)event {
  32     WebThreadLocked lock;
  33
  34     NSString *script([NSString stringWithFormat:@
  35         "(function() {"
  36             "var event = this.document.createEvent('Events');"
  37             "event.initEvent('%@', false, false);"
  38             "this.document.dispatchEvent(event);"
  39         "})();"
  40     , event]);
  41
  42     NSMutableArray *frames([NSMutableArray arrayWithObjects:
  43         [[self webView] mainFrame]
  44     , nil]);
  45
  46     while (WebFrame *frame = [frames lastObject]) {
  47         WebScriptObject *object([frame windowObject]);
  48         [object evaluateWebScript:script];
  49         [frames removeLastObject];
  50         [frames addObjectsFromArray:[frame childFrames]];
  51     }
  52 }
  53
  54 @end
  55
  56 MSHook(void, UIWebBrowserView$_webTouchEventsRecognized$, UIWebBrowserView *self, SEL _cmd, UIWebTouchEventsGestureRecognizer *recognizer) {
  57     _UIWebBrowserView$_webTouchEventsRecognized$(self, _cmd, recognizer);
  58
  59     switch ([recognizer type]) {
  60         case WebEventTouchEnd:
  61             [self dispatchEvent:@"CydiaTouchEnd"];
  62         break;
  63
  64         case WebEventTouchCancel:
  65             [self dispatchEvent:@"CydiaTouchCancel"];
  66         break;
  67     }
  68 }
  69
  70 __attribute__((__constructor__)) static void $() {
  71     if (Class $UIWebBrowserView = objc_getClass("UIWebBrowserView")) {
  72         if (Method method = class_getInstanceMethod($UIWebBrowserView, @selector(_webTouchEventsRecognized:))) {
  73             _UIWebBrowserView$_webTouchEventsRecognized$ = reinterpret_cast<void (*)(UIWebBrowserView *, SEL, UIWebTouchEventsGestureRecognizer *)>(method_getImplementation(method));
  74             method_setImplementation(method, reinterpret_cast<IMP>(&$UIWebBrowserView$_webTouchEventsRecognized$));
  75         }
  76     }
  77 }