Adding handlers for user gesture callbacks.

Source/platform/UserGestureIndicator.cpp

 /*
  * Copyright (C) 2010 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 11 matching lines @@
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  * THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "platform/UserGestureIndicator.h"
 
 #include "wtf/Assertions.h"
 #include "wtf/CurrentTime.h"
 #include "wtf/MainThread.h"
+#include "wtf/Vector.h"
 
 namespace WebCore {
 
 namespace {
 
+static Vector<RefPtr<UserGestureHandler> >& handlers()
+{
+    ASSERT(isMainThread());
+    DEFINE_STATIC_LOCAL(Vector<RefPtr<UserGestureHandler> >, userGestureHandlers, ());
+    return userGestureHandlers;
+}
+
 // User gestures timeout in 1 second.
 const double userGestureTimeout = 1.0;
 
 // For out of process tokens we allow a 10 second delay.
 const double userGestureOutOfProcessTimeout = 10.0;
 
 class GestureToken : public UserGestureToken {
 public:
     static PassRefPtr<UserGestureToken> create() { return adoptRef(new GestureToken); }
 
@@ skipping 104 matching lines @@
             s_topmostIndicator = this;
             m_token = token;
         } else {
             m_token = s_topmostIndicator->currentToken();
             if (static_cast<GestureToken*>(token.get())->hasGestures()) {
                 static_cast<GestureToken*>(m_token.get())->addGesture();
                 static_cast<GestureToken*>(token.get())->consumeGesture();
             }
         }
         s_state = DefinitelyProcessingUserGesture;
+
+        while (handlers().size() > 0) {
+            handlers().last()->onGesture();
+            handlers().removeLast();
+        }
     }
 
     ASSERT(isDefinite(s_state));
 }
 
 UserGestureIndicator::~UserGestureIndicator()
 {
     if (!isMainThread())
         return;
     s_state = m_previousState;
@@ skipping 16 matching lines @@
     return static_cast<GestureToken*>(s_topmostIndicator->currentToken())->consumeGesture();
 }
 
 UserGestureToken* UserGestureIndicator::currentToken()
 {
     if (!isMainThread() || !s_topmostIndicator)
         return 0;
     return s_topmostIndicator->m_token.get();
 }
 
+void UserGestureIndicator::addHandler(PassRefPtr<UserGestureHandler> handler)
+{
+    handlers().append(handler);
+}
+
 UserGestureIndicatorDisabler::UserGestureIndicatorDisabler()
     : m_savedState(UserGestureIndicator::s_state)
     , m_savedIndicator(UserGestureIndicator::s_topmostIndicator)
 {
     RELEASE_ASSERT(isMainThread());
     UserGestureIndicator::s_state = DefinitelyNotProcessingUserGesture;
     UserGestureIndicator::s_topmostIndicator = 0;
 }
 
 UserGestureIndicatorDisabler::~UserGestureIndicatorDisabler()
 {
     RELEASE_ASSERT(isMainThread());
     UserGestureIndicator::s_state = m_savedState;
     UserGestureIndicator::s_topmostIndicator = m_savedIndicator;
 }
 
 }