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+/*
+ * Copyright (C) 2010 Google 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:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
+ * OWNER 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.
+ */
+
+/*
+  EventSender class:
+  Bound to a JavaScript window.eventSender object using
+  CppBoundClass::bindToJavascript(), this allows layout tests to fire DOM events.
+*/
+
+#ifndef EventSender_h
+#define EventSender_h
+
+#include "CppBoundClass.h"
+#include "base/task.h"
+#include "public/WebDragOperation.h"
+#include "public/WebInputEvent.h"
+#include "public/WebPoint.h"
+
+class TestShell;
+
+namespace WebKit {
+class WebDragData;
+class WebView;
+}
+
+class EventSender : public CppBoundClass {
+public:
+    // Builds the property and method lists needed to bind this class to a JS
+    // object.
+    EventSender(TestShell*);
+
+    // Resets some static variable state.
+    void reset();
+
+    // Simulate drag&drop system call.
+    static void doDragDrop(const WebKit::WebPoint&,
+                           const WebKit::WebDragData&,
+                           WebKit::WebDragOperationsMask);
+
+    // JS callback methods.
+    void mouseDown(const CppArgumentList&, CppVariant*);
+    void mouseUp(const CppArgumentList&, CppVariant*);
+    void mouseMoveTo(const CppArgumentList&, CppVariant*);
+    void mouseWheelTo(const CppArgumentList&, CppVariant*);
+    void leapForward(const CppArgumentList&, CppVariant*);
+    void keyDown(const CppArgumentList&, CppVariant*);
+    void dispatchMessage(const CppArgumentList&, CppVariant*);
+    void textZoomIn(const CppArgumentList&, CppVariant*);
+    void textZoomOut(const CppArgumentList&, CppVariant*);
+    void zoomPageIn(const CppArgumentList&, CppVariant*);
+    void zoomPageOut(const CppArgumentList&, CppVariant*);
+    void scheduleAsynchronousClick(const CppArgumentList&, CppVariant*);
+    void beginDragWithFiles(const CppArgumentList&, CppVariant*);
+    CppVariant dragMode;
+
+    // Unimplemented stubs
+    void contextClick(const CppArgumentList&, CppVariant*);
+    void enableDOMUIEventLogging(const CppArgumentList&, CppVariant*);
+    void fireKeyboardEventsToElement(const CppArgumentList&, CppVariant*);
+    void clearKillRing(const CppArgumentList&, CppVariant*);
+
+    // Properties used in layout tests.
+#if defined(OS_WIN)
+    CppVariant wmKeyDown;
+    CppVariant wmKeyUp;
+    CppVariant wmChar;
+    CppVariant wmDeadChar;
+    CppVariant wmSysKeyDown;
+    CppVariant wmSysKeyUp;
+    CppVariant wmSysChar;
+    CppVariant wmSysDeadChar;
+#endif
+
+private:
+    // Returns the test shell's webview.
+    static WebKit::WebView* webview();
+
+    // Returns true if dragMode is true.
+    bool isDragMode() { return dragMode.isBool() && dragMode.toBoolean(); }
+
+    // Sometimes we queue up mouse move and mouse up events for drag drop
+    // handling purposes.  These methods dispatch the event.
+    static void doMouseMove(const WebKit::WebMouseEvent&);
+    static void doMouseUp(const WebKit::WebMouseEvent&);
+    static void doLeapForward(int milliseconds);
+    static void replaySavedEvents();
+
+    // Helper to return the button type given a button code
+    static WebKit::WebMouseEvent::Button getButtonTypeFromButtonNumber(int);
+
+    // Helper to extract the button number from the optional argument in
+    // mouseDown and mouseUp
+    static int getButtonNumberFromSingleArg(const CppArgumentList&);
+
+    // Returns true if the specified key code passed in needs a shift key
+    // modifier to be passed into the generated event.
+    bool needsShiftModifier(int);
+
+    void updateClickCountForButton(WebKit::WebMouseEvent::Button);
+
+    ScopedRunnableMethodFactory<EventSender> m_methodFactory;
+
+    // Non-owning pointer.  The EventSender is owned by the TestShell.
+    static TestShell* testShell;
+
+    // Location of last mouseMoveTo event.
+    static WebKit::WebPoint lastMousePos;
+
+    // Currently pressed mouse button (Left/Right/Middle or None)
+    static WebKit::WebMouseEvent::Button pressedButton;
+
+    // The last button number passed to mouseDown and mouseUp.
+    // Used to determine whether the click count continues to
+    // increment or not.
+    static WebKit::WebMouseEvent::Button lastButtonType;
+};
+
+#endif // EventSender_h