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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 "public/platform/WebContentLayerClient.h"
35 #include "public/platform/WebPoint.h"
36 #include "public/platform/WebSize.h"
37 #include "public/web/WebPopupMenu.h"
38 #include "web/PopupContainerClient.h"
39 #include "wtf/OwnPtr.h"
40 #include "wtf/RefCounted.h"
41 
42 namespace blink {
43 class LocalFrame;
44 class KeyboardEvent;
45 class Page;
46 class PlatformKeyboardEvent;
47 class Range;
48 class WebContentLayer;
49 class WebGestureEvent;
50 class WebKeyboardEvent;
51 class WebLayerTreeView;
52 class WebMouseEvent;
53 class WebMouseWheelEvent;
54 class WebRange;
55 class WebTouchEvent;
56 class Widget;
57 struct WebRect;
58 
59 class WebPopupMenuImpl : public WebPopupMenu, public PopupContainerClient, public WebContentLayerClient, public RefCounted<WebPopupMenuImpl> {
60     WTF_MAKE_FAST_ALLOCATED;
61 public:
62     // WebWidget functions:
63     virtual void close() OVERRIDE FINAL;
size()64     virtual WebSize size() OVERRIDE FINAL { return m_size; }
65     virtual void willStartLiveResize() OVERRIDE FINAL;
66     virtual void resize(const WebSize&) OVERRIDE FINAL;
67     virtual void willEndLiveResize() OVERRIDE FINAL;
68     virtual void beginFrame(const WebBeginFrameArgs&) OVERRIDE FINAL;
69     virtual void layout() OVERRIDE FINAL;
70     virtual void paint(WebCanvas*, const WebRect&) OVERRIDE FINAL;
71     virtual void themeChanged() OVERRIDE FINAL;
72     virtual bool handleInputEvent(const WebInputEvent&) OVERRIDE FINAL;
73     virtual void mouseCaptureLost() OVERRIDE FINAL;
74     virtual void setFocus(bool enable) OVERRIDE FINAL;
75     virtual bool setComposition(
76         const WebString& text,
77         const WebVector<WebCompositionUnderline>& underlines,
78         int selectionStart, int selectionEnd) OVERRIDE FINAL;
79     virtual bool confirmComposition() OVERRIDE FINAL;
80     virtual bool confirmComposition(ConfirmCompositionBehavior selectionBehavior) OVERRIDE FINAL;
81     virtual bool confirmComposition(const WebString& text) OVERRIDE FINAL;
82     virtual bool compositionRange(size_t* location, size_t* length) OVERRIDE FINAL;
83     virtual bool caretOrSelectionRange(size_t* location, size_t* length) OVERRIDE FINAL;
setTextDirection(WebTextDirection)84     virtual void setTextDirection(WebTextDirection) OVERRIDE FINAL;
85     virtual bool isAcceleratedCompositingActive() const OVERRIDE FINAL { return false; }
isPopupMenu()86     virtual bool isPopupMenu() const OVERRIDE FINAL { return true; }
87     virtual void willCloseLayerTreeView() OVERRIDE FINAL;
88 
89     // WebContentLayerClient
90     virtual void paintContents(WebCanvas*, const WebRect& clip, bool canPaintLCDTest, WebContentLayerClient::GraphicsContextStatus = GraphicsContextEnabled) OVERRIDE FINAL;
91 
92     // WebPopupMenuImpl
93     void initialize(PopupContainer* widget, const WebRect& bounds);
94 
client()95     WebWidgetClient* client() { return m_client; }
96 
97     void handleMouseMove(const WebMouseEvent&);
98     void handleMouseLeave(const WebMouseEvent&);
99     void handleMouseDown(const WebMouseEvent&);
100     void handleMouseUp(const WebMouseEvent&);
101     void handleMouseDoubleClick(const WebMouseEvent&);
102     void handleMouseWheel(const WebMouseWheelEvent&);
103     bool handleGestureEvent(const WebGestureEvent&);
104     bool handleTouchEvent(const WebTouchEvent&);
105     bool handleKeyEvent(const WebKeyboardEvent&);
106 
107    protected:
108     friend class WebPopupMenu; // For WebPopupMenu::create.
109     friend class WTF::RefCounted<WebPopupMenuImpl>;
110 
111     explicit WebPopupMenuImpl(WebWidgetClient*);
112     ~WebPopupMenuImpl();
113 
114     // HostWindow methods:
115     virtual void invalidateContentsAndRootView(const IntRect&) OVERRIDE FINAL;
116     virtual void invalidateContentsForSlowScroll(const IntRect&) OVERRIDE FINAL;
117     virtual void scheduleAnimation() OVERRIDE FINAL;
118     virtual IntRect rootViewToScreen(const IntRect&) const OVERRIDE FINAL;
119     virtual WebScreenInfo screenInfo() const OVERRIDE FINAL;
120 
121     // PopupContainerClient methods:
122     virtual void popupClosed(PopupContainer*) OVERRIDE FINAL;
123 
124     WebWidgetClient* m_client;
125     WebSize m_size;
126 
127     WebLayerTreeView* m_layerTreeView;
128     OwnPtr<WebContentLayer> m_rootLayer;
129 
130     WebPoint m_lastMousePosition;
131 
132     // This is a non-owning ref. The popup will notify us via popupClosed()
133     // before it is destroyed.
134     PopupContainer* m_widget;
135 };
136 
137 DEFINE_TYPE_CASTS(WebPopupMenuImpl, WebWidget, widget, widget->isPopupMenu(), widget.isPopupMenu());
138 // WebPopupMenuImpl is the only implementation of PopupContainerClient, so
139 // no need for further checking.
140 DEFINE_TYPE_CASTS(WebPopupMenuImpl, PopupContainerClient, client, true, true);
141 
142 } // namespace blink
143 
144 #endif
145