1 files changed, 111 insertions, 0 deletions
diff --git a/Source/WebCore/dom/SimulatedClick.cpp b/Source/WebCore/dom/SimulatedClick.cpp
new file mode 100644
index 000000000..427ac5256
--- /dev/null
+++ b/Source/WebCore/dom/SimulatedClick.cpp
@@ -0,0 +1,111 @@
+/*
+ * 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 "SimulatedClick.h"
+
+#include "DataTransfer.h"
+#include "Element.h"
+#include "EventDispatcher.h"
+#include "EventNames.h"
+#include "MouseEvent.h"
+#include <wtf/CurrentTime.h>
+#include <wtf/NeverDestroyed.h>
+
+namespace WebCore {
+
+class SimulatedMouseEvent final : public MouseEvent {
+public:
+    static Ref<SimulatedMouseEvent> create(const AtomicString& eventType, DOMWindow* view, RefPtr<Event>&& underlyingEvent, Element& target, SimulatedClickSource source)
+    {
+        return adoptRef(*new SimulatedMouseEvent(eventType, view, WTFMove(underlyingEvent), target, source));
+    }
+
+private:
+    SimulatedMouseEvent(const AtomicString& eventType, DOMWindow* view, RefPtr<Event>&& underlyingEvent, Element& target, SimulatedClickSource source)
+        : MouseEvent(eventType, true, true, underlyingEvent ? underlyingEvent->timeStamp() : currentTime(), view, 0, { }, { },
+#if ENABLE(POINTER_LOCK)
+            { },
+#endif
+            false, false, false, false, 0, 0, 0, 0, 0, true)
+    {
+        if (source == SimulatedClickSource::Bindings)
+            setUntrusted();
+
+        if (UIEventWithKeyState* keyStateEvent = findEventWithKeyState(underlyingEvent.get())) {
+            m_ctrlKey = keyStateEvent->ctrlKey();
+            m_altKey = keyStateEvent->altKey();
+            m_shiftKey = keyStateEvent->shiftKey();
+            m_metaKey = keyStateEvent->metaKey();
+        }
+        setUnderlyingEvent(underlyingEvent.get());
+
+        if (is<MouseEvent>(this->underlyingEvent())) {
+            MouseEvent& mouseEvent = downcast<MouseEvent>(*this->underlyingEvent());
+            m_screenLocation = mouseEvent.screenLocation();
+            initCoordinates(mouseEvent.clientLocation());
+        } else if (source == SimulatedClickSource::UserAgent) {
+            // If there is no underlying event, we only populate the coordinates for events coming
+            // from the user agent (e.g. accessibility). For those coming from JavaScript (e.g.
+            // (element.click()), the coordinates will be 0, similarly to Firefox and Chrome.
+            // Note that the call to screenRect() causes a synchronous IPC with the UI process.
+            m_screenLocation = target.screenRect().center();
+            initCoordinates(LayoutPoint(target.clientRect().center()));
+        }
+    }
+
+};
+
+static void simulateMouseEvent(const AtomicString& eventType, Element& element, Event* underlyingEvent, SimulatedClickSource source)
+{
+    auto event = SimulatedMouseEvent::create(eventType, element.document().defaultView(), underlyingEvent, element, source);
+    EventDispatcher::dispatchEvent(element, event);
+}
+
+void simulateClick(Element& element, Event* underlyingEvent, SimulatedClickMouseEventOptions mouseEventOptions, SimulatedClickVisualOptions visualOptions, SimulatedClickSource creationOptions)
+{
+    if (element.isDisabledFormControl())
+        return;
+
+    static NeverDestroyed<HashSet<Element*>> elementsDispatchingSimulatedClicks;
+    if (!elementsDispatchingSimulatedClicks.get().add(&element).isNewEntry)
+        return;
+
+    if (mouseEventOptions == SendMouseOverUpDownEvents)
+        simulateMouseEvent(eventNames().mouseoverEvent, element, underlyingEvent, creationOptions);
+
+    if (mouseEventOptions != SendNoEvents)
+        simulateMouseEvent(eventNames().mousedownEvent, element, underlyingEvent, creationOptions);
+    element.setActive(true, visualOptions == ShowPressedLook);
+    if (mouseEventOptions != SendNoEvents)
+        simulateMouseEvent(eventNames().mouseupEvent, element, underlyingEvent, creationOptions);
+    element.setActive(false);
+
+    simulateMouseEvent(eventNames().clickEvent, element, underlyingEvent, creationOptions);
+
+    elementsDispatchingSimulatedClicks.get().remove(&element);
+}
+
+} // namespace WebCore