CyteKit/dispatchEvent.mm

   1 /* Cydia - iPhone UIKit Front-End for Debian APT
   2  * Copyright (C) 2008-2014  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/dispatchEvent.h"
  23 #include "CyteKit/WebThreadLocked.hpp"
  24
  25 #include <WebCore/WebEvent.h>
  26
  27 #include <WebKit/WebFrame.h>
  28 #include <WebKit/WebScriptObject.h>
  29 #include <WebKit/WebView.h>
  30
  31 #include <objc/runtime.h>
  32
  33 #include <CydiaSubstrate/CydiaSubstrate.h>
  34
  35 @implementation UIWebDocumentView (CyteDispatchEvent)
  36
  37 - (void) dispatchEvent:(NSString *)event {
  38     WebThreadLocked lock;
  39
  40     NSString *script([NSString stringWithFormat:@
  41         "(function() {"
  42             "var event = this.document.createEvent('Events');"
  43             "event.initEvent('%@', false, false);"
  44             "this.document.dispatchEvent(event);"
  45         "})();"
  46     , event]);
  47
  48     NSMutableArray *frames([NSMutableArray arrayWithObjects:
  49         [[self webView] mainFrame]
  50     , nil]);
  51
  52     while (WebFrame *frame = [frames lastObject]) {
  53         WebScriptObject *object([frame windowObject]);
  54         [object evaluateWebScript:script];
  55         [frames removeLastObject];
  56         [frames addObjectsFromArray:[frame childFrames]];
  57     }
  58 }
  59
  60 @end
  61
  62 MSHook(void, UIWebBrowserView$_webTouchEventsRecognized$, UIWebBrowserView *self, SEL _cmd, UIWebTouchEventsGestureRecognizer *recognizer) {
  63     _UIWebBrowserView$_webTouchEventsRecognized$(self, _cmd, recognizer);
  64
  65     switch ([recognizer type]) {
  66         case WebEventTouchEnd:
  67             [self dispatchEvent:@"CydiaTouchEnd"];
  68         break;
  69
  70         case WebEventTouchCancel:
  71             [self dispatchEvent:@"CydiaTouchCancel"];
  72         break;
  73     }
  74 }
  75
  76 __attribute__((__constructor__)) static void $() {
  77     if (Class $UIWebBrowserView = objc_getClass("UIWebBrowserView")) {
  78         if (Method method = class_getInstanceMethod($UIWebBrowserView, @selector(_webTouchEventsRecognized:))) {
  79             _UIWebBrowserView$_webTouchEventsRecognized$ = reinterpret_cast<void (*)(UIWebBrowserView *, SEL, UIWebTouchEventsGestureRecognizer *)>(method_getImplementation(method));
  80             method_setImplementation(method, reinterpret_cast<IMP>(&$UIWebBrowserView$_webTouchEventsRecognized$));
  81         }
  82     }
  83 }