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      1 /*
      2  * Copyright (C) 2009 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef WebPopupMenuImpl_h
     32 #define WebPopupMenuImpl_h
     33 
     34 #include "platform/scroll/FramelessScrollViewClient.h"
     35 #include "public/platform/WebContentLayerClient.h"
     36 #include "public/platform/WebPoint.h"
     37 #include "public/platform/WebSize.h"
     38 #include "public/web/WebPopupMenu.h"
     39 #include "wtf/OwnPtr.h"
     40 #include "wtf/RefCounted.h"
     41 
     42 namespace WebCore {
     43 class LocalFrame;
     44 class FramelessScrollView;
     45 class KeyboardEvent;
     46 class Page;
     47 class PlatformKeyboardEvent;
     48 class Range;
     49 class Widget;
     50 }
     51 
     52 namespace blink {
     53 class WebContentLayer;
     54 class WebGestureEvent;
     55 class WebKeyboardEvent;
     56 class WebLayerTreeView;
     57 class WebMouseEvent;
     58 class WebMouseWheelEvent;
     59 class WebRange;
     60 struct WebRect;
     61 class WebTouchEvent;
     62 
     63 class WebPopupMenuImpl : public WebPopupMenu, public WebCore::FramelessScrollViewClient, public WebContentLayerClient, public RefCounted<WebPopupMenuImpl> {
     64     WTF_MAKE_FAST_ALLOCATED;
     65 public:
     66     // WebWidget functions:
     67     virtual void close() OVERRIDE FINAL;
     68     virtual WebSize size() OVERRIDE FINAL { return m_size; }
     69     virtual void willStartLiveResize() OVERRIDE FINAL;
     70     virtual void resize(const WebSize&) OVERRIDE FINAL;
     71     virtual void willEndLiveResize() OVERRIDE FINAL;
     72     virtual void animate(double frameBeginTime) OVERRIDE FINAL;
     73     virtual void layout() OVERRIDE FINAL;
     74     virtual void paint(WebCanvas*, const WebRect&) OVERRIDE FINAL;
     75     virtual void themeChanged() OVERRIDE FINAL;
     76     virtual bool handleInputEvent(const WebInputEvent&) OVERRIDE FINAL;
     77     virtual void mouseCaptureLost() OVERRIDE FINAL;
     78     virtual void setFocus(bool enable) OVERRIDE FINAL;
     79     virtual bool setComposition(
     80         const WebString& text,
     81         const WebVector<WebCompositionUnderline>& underlines,
     82         int selectionStart, int selectionEnd) OVERRIDE FINAL;
     83     virtual bool confirmComposition() OVERRIDE FINAL;
     84     virtual bool confirmComposition(ConfirmCompositionBehavior selectionBehavior) OVERRIDE FINAL;
     85     virtual bool confirmComposition(const WebString& text) OVERRIDE FINAL;
     86     virtual bool compositionRange(size_t* location, size_t* length) OVERRIDE FINAL;
     87     virtual bool caretOrSelectionRange(size_t* location, size_t* length) OVERRIDE FINAL;
     88     virtual void setTextDirection(WebTextDirection) OVERRIDE FINAL;
     89     virtual bool isAcceleratedCompositingActive() const OVERRIDE FINAL { return false; }
     90     virtual bool isPopupMenu() const OVERRIDE FINAL { return true; }
     91     virtual void willCloseLayerTreeView() OVERRIDE FINAL;
     92 
     93     // WebContentLayerClient
     94     virtual void paintContents(WebCanvas*, const WebRect& clip, bool canPaintLCDTest, WebFloatRect& opaque,
     95         WebContentLayerClient::GraphicsContextStatus = GraphicsContextEnabled) OVERRIDE FINAL;
     96 
     97     // WebPopupMenuImpl
     98     void initialize(WebCore::FramelessScrollView* widget, const WebRect& bounds);
     99 
    100     WebWidgetClient* client() { return m_client; }
    101 
    102     void handleMouseMove(const WebMouseEvent&);
    103     void handleMouseLeave(const WebMouseEvent&);
    104     void handleMouseDown(const WebMouseEvent&);
    105     void handleMouseUp(const WebMouseEvent&);
    106     void handleMouseDoubleClick(const WebMouseEvent&);
    107     void handleMouseWheel(const WebMouseWheelEvent&);
    108     bool handleGestureEvent(const WebGestureEvent&);
    109     bool handleTouchEvent(const WebTouchEvent&);
    110     bool handleKeyEvent(const WebKeyboardEvent&);
    111 
    112    protected:
    113     friend class WebPopupMenu; // For WebPopupMenu::create.
    114     friend class WTF::RefCounted<WebPopupMenuImpl>;
    115 
    116     WebPopupMenuImpl(WebWidgetClient*);
    117     ~WebPopupMenuImpl();
    118 
    119     // WebCore::HostWindow methods:
    120     virtual void invalidateContentsAndRootView(const WebCore::IntRect&) OVERRIDE FINAL;
    121     virtual void invalidateContentsForSlowScroll(const WebCore::IntRect&) OVERRIDE FINAL;
    122     virtual void scheduleAnimation() OVERRIDE FINAL;
    123     virtual void scroll(
    124         const WebCore::IntSize& scrollDelta, const WebCore::IntRect& scrollRect,
    125         const WebCore::IntRect& clipRect) OVERRIDE FINAL;
    126     virtual WebCore::IntRect rootViewToScreen(const WebCore::IntRect&) const OVERRIDE FINAL;
    127     virtual WebScreenInfo screenInfo() const OVERRIDE FINAL;
    128 
    129     // WebCore::FramelessScrollViewClient methods:
    130     virtual void popupClosed(WebCore::FramelessScrollView*) OVERRIDE FINAL;
    131 
    132     WebWidgetClient* m_client;
    133     WebSize m_size;
    134 
    135     WebLayerTreeView* m_layerTreeView;
    136     OwnPtr<WebContentLayer> m_rootLayer;
    137 
    138     WebPoint m_lastMousePosition;
    139 
    140     // This is a non-owning ref. The popup will notify us via popupClosed()
    141     // before it is destroyed.
    142     WebCore::FramelessScrollView* m_widget;
    143 };
    144 
    145 DEFINE_TYPE_CASTS(WebPopupMenuImpl, WebWidget, widget, widget->isPopupMenu(), widget.isPopupMenu());
    146 // WebPopupMenuImpl is the only implementation of FramelessScrollViewClient, so
    147 // no need for further checking.
    148 DEFINE_TYPE_CASTS(WebPopupMenuImpl, WebCore::FramelessScrollViewClient, client, true, true);
    149 
    150 } // namespace blink
    151 
    152 #endif
    153