webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 79 insertions, 0 deletions

diff --git a/Source/WebCore/platform/EventTrackingRegions.cpp b/Source/WebCore/platform/EventTrackingRegions.cpp
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+++ b/Source/WebCore/platform/EventTrackingRegions.cpp
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+/*
+ * Copyright (C) 2016 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. ``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
+ * 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 "EventTrackingRegions.h"
+
+namespace WebCore {
+
+TrackingType EventTrackingRegions::trackingTypeForPoint(const String& eventName, const IntPoint& point)
+{
+    auto synchronousRegionIterator = eventSpecificSynchronousDispatchRegions.find(eventName);
+    if (synchronousRegionIterator != eventSpecificSynchronousDispatchRegions.end()) {
+        if (synchronousRegionIterator->value.contains(point))
+            return TrackingType::Synchronous;
+    }
+
+    if (asynchronousDispatchRegion.contains(point))
+        return TrackingType::Asynchronous;
+    return TrackingType::NotTracking;
+}
+
+bool EventTrackingRegions::isEmpty() const
+{
+    return asynchronousDispatchRegion.isEmpty() && eventSpecificSynchronousDispatchRegions.isEmpty();
+}
+
+void EventTrackingRegions::translate(IntSize offset)
+{
+    asynchronousDispatchRegion.translate(offset);
+    for (auto& slot : eventSpecificSynchronousDispatchRegions)
+        slot.value.translate(offset);
+}
+
+void EventTrackingRegions::uniteSynchronousRegion(const String& eventName, const Region& region)
+{
+    if (region.isEmpty())
+        return;
+
+    auto addResult = eventSpecificSynchronousDispatchRegions.add(eventName, region);
+    if (!addResult.isNewEntry)
+        addResult.iterator->value.unite(region);
+}
+
+void EventTrackingRegions::unite(const EventTrackingRegions& eventTrackingRegions)
+{
+    asynchronousDispatchRegion.unite(eventTrackingRegions.asynchronousDispatchRegion);
+    for (auto& slot : eventTrackingRegions.eventSpecificSynchronousDispatchRegions)
+        uniteSynchronousRegion(slot.key, slot.value);
+}
+
+bool operator==(const EventTrackingRegions& a, const EventTrackingRegions& b)
+{
+    return a.asynchronousDispatchRegion == b.asynchronousDispatchRegion
+        && a.eventSpecificSynchronousDispatchRegions == b.eventSpecificSynchronousDispatchRegions;
+}
+
+} // namespace WebCore