| /* |
| * Copyright (C) 2014 Igalia S.L. |
| * |
| * 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. |
| */ |
| |
| #ifndef GestureController_h |
| #define GestureController_h |
| |
| #if HAVE(GTK_GESTURES) |
| |
| #include <WebCore/FloatPoint.h> |
| #include <wtf/Noncopyable.h> |
| #include <wtf/RunLoop.h> |
| #include <wtf/glib/GRefPtr.h> |
| |
| typedef union _GdkEvent GdkEvent; |
| typedef struct _GdkEventSequence GdkEventSequence; |
| typedef struct _GtkGesture GtkGesture; |
| |
| namespace WebKit { |
| class WebPageProxy; |
| |
| class GestureController { |
| WTF_MAKE_NONCOPYABLE(GestureController); |
| |
| public: |
| GestureController(WebPageProxy&); |
| |
| bool isProcessingGestures() const; |
| bool handleEvent(const GdkEvent*); |
| |
| private: |
| class Gesture { |
| public: |
| bool isActive() const; |
| void handleEvent(const GdkEvent*); |
| |
| protected: |
| Gesture(GtkGesture*, WebPageProxy&); |
| |
| GRefPtr<GtkGesture> m_gesture; |
| WebPageProxy& m_page; |
| }; |
| |
| class DragGesture final : public Gesture { |
| public: |
| DragGesture(WebPageProxy&); |
| |
| private: |
| void handleDrag(const GdkEvent*, double x, double y); |
| void handleTap(const GdkEvent*); |
| void longPressFired(); |
| |
| static void begin(DragGesture*, double x, double y, GtkGesture*); |
| static void update(DragGesture*, double x, double y, GtkGesture*); |
| static void end(DragGesture*, GdkEventSequence*, GtkGesture*); |
| |
| WebCore::FloatPoint m_start; |
| WebCore::FloatPoint m_offset; |
| RunLoop::Timer<DragGesture> m_longPressTimeout; |
| GRefPtr<GtkGesture> m_longPress; |
| bool m_inDrag; |
| }; |
| |
| class ZoomGesture final : public Gesture { |
| public: |
| ZoomGesture(WebPageProxy&); |
| |
| private: |
| WebCore::IntPoint center() const; |
| void handleZoom(); |
| |
| static void begin(ZoomGesture*, GdkEventSequence*, GtkGesture*); |
| static void scaleChanged(ZoomGesture*, double scale, GtkGesture*); |
| |
| gdouble m_initialScale; |
| gdouble m_scale; |
| WebCore::IntPoint m_initialPoint; |
| WebCore::IntPoint m_viewPoint; |
| RunLoop::Timer<ZoomGesture> m_idle; |
| }; |
| |
| DragGesture m_dragGesture; |
| ZoomGesture m_zoomGesture; |
| }; |
| |
| } // namespace WebKit |
| |
| #endif // HAVE(GTK_GESTURES) |
| |
| #endif // GestureController_h |