Imported WebKit commit 2ea9d364d0f6efa8fa64acf19f451504c59be0e4 (http://svn.webkit.org/repository/webkit/trunk@104285)

1 files changed, 148 insertions, 0 deletions

diff --git a/Source/WebKit2/WebProcess/WebPage/EventDispatcher.cpp b/Source/WebKit2/WebProcess/WebPage/EventDispatcher.cpp
new file mode 100644
index 000000000..6486587d0
--- /dev/null
+++ b/Source/WebKit2/WebProcess/WebPage/EventDispatcher.cpp
@@ -0,0 +1,148 @@
+/*
+ * Copyright (C) 2011 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
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "EventDispatcher.h"
+
+#include "RunLoop.h"
+#include "WebEvent.h"
+#include "WebEventConversion.h"
+#include "WebPage.h"
+#include "WebPageProxyMessages.h"
+#include "WebProcess.h"
+#include <WebCore/Page.h>
+#include <wtf/MainThread.h>
+
+#if ENABLE(THREADED_SCROLLING)
+#include <WebCore/ScrollingCoordinator.h>
+#endif
+
+using namespace WebCore;
+
+namespace WebKit {
+
+EventDispatcher::EventDispatcher()
+{
+}
+
+EventDispatcher::~EventDispatcher()
+{
+}
+
+#if ENABLE(THREADED_SCROLLING)
+void EventDispatcher::addScrollingCoordinatorForPage(WebPage* webPage)
+{
+    MutexLocker locker(m_scrollingCoordinatorsMutex);
+
+    ASSERT(webPage->corePage()->scrollingCoordinator());
+    ASSERT(!m_scrollingCoordinators.contains(webPage->pageID()));
+    m_scrollingCoordinators.set(webPage->pageID(), webPage->corePage()->scrollingCoordinator());
+}
+
+void EventDispatcher::removeScrollingCoordinatorForPage(WebPage* webPage)
+{
+    MutexLocker locker(m_scrollingCoordinatorsMutex);
+    ASSERT(m_scrollingCoordinators.contains(webPage->pageID()));
+
+    m_scrollingCoordinators.remove(webPage->pageID());
+}
+#endif
+
+void EventDispatcher::didReceiveMessageOnConnectionWorkQueue(CoreIPC::Connection* connection, CoreIPC::MessageID messageID, CoreIPC::ArgumentDecoder* arguments, bool& didHandleMessage)
+{
+    if (messageID.is<CoreIPC::MessageClassEventDispatcher>()) {
+        didReceiveEventDispatcherMessageOnConnectionWorkQueue(connection, messageID, arguments, didHandleMessage);
+        return;
+    }
+}
+
+void EventDispatcher::wheelEvent(uint64_t pageID, const WebWheelEvent& wheelEvent)
+{
+#if ENABLE(THREADED_SCROLLING)
+    MutexLocker locker(m_scrollingCoordinatorsMutex);
+    if (ScrollingCoordinator* scrollingCoordinator = m_scrollingCoordinators.get(pageID).get()) {
+        PlatformWheelEvent platformWheelEvent = platform(wheelEvent);
+
+        if (scrollingCoordinator->handleWheelEvent(platformWheelEvent)) {
+            sendDidHandleEvent(pageID, wheelEvent);
+            return;
+        }
+    }
+#endif
+
+    RunLoop::main()->dispatch(bind(&EventDispatcher::dispatchWheelEvent, this, pageID, wheelEvent));
+}
+
+#if ENABLE(GESTURE_EVENTS)
+void EventDispatcher::gestureEvent(uint64_t pageID, const WebGestureEvent& gestureEvent)
+{
+#if ENABLE(THREADED_SCROLLING)
+    MutexLocker locker(m_scrollingCoordinatorsMutex);
+    if (ScrollingCoordinator* scrollingCoordinator = m_scrollingCoordinators.get(pageID).get()) {
+        PlatformGestureEvent platformGestureEvent = platform(gestureEvent);
+
+        if (scrollingCoordinator->handleGestureEvent(platformGestureEvent)) {
+            sendDidHandleEvent(pageID, gestureEvent);
+            return;
+        }
+    }
+#endif
+
+    RunLoop::main()->dispatch(bind(&EventDispatcher::dispatchGestureEvent, this, pageID, gestureEvent));
+}
+#endif
+
+void EventDispatcher::dispatchWheelEvent(uint64_t pageID, const WebWheelEvent& wheelEvent)
+{
+    ASSERT(isMainThread());
+
+    WebPage* webPage = WebProcess::shared().webPage(pageID);
+    if (!webPage)
+        return;
+
+    webPage->wheelEvent(wheelEvent);
+}
+
+#if ENABLE(GESTURE_EVENTS)
+void EventDispatcher::dispatchGestureEvent(uint64_t pageID, const WebGestureEvent& gestureEvent)
+{
+    ASSERT(isMainThread());
+
+    WebPage* webPage = WebProcess::shared().webPage(pageID);
+    if (!webPage)
+        return;
+
+    webPage->gestureEvent(gestureEvent);
+}
+#endif
+
+#if ENABLE(THREADED_SCROLLING)
+void EventDispatcher::sendDidHandleEvent(uint64_t pageID, const WebEvent& event)
+{
+    WebProcess::shared().connection()->send(Messages::WebPageProxy::DidReceiveEvent(static_cast<uint32_t>(event.type()), true), pageID);
+}
+#endif
+
+} // namespace WebKit