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1 /*
2  * Copyright (C) 2010 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 ExternalPopupMenu_h
32 #define ExternalPopupMenu_h
33 
34 #include "platform/PopupMenu.h"
35 #include "platform/Timer.h"
36 #include "public/platform/WebCanvas.h"
37 #include "public/platform/WebScrollbar.h"
38 #include "public/web/WebExternalPopupMenuClient.h"
39 
40 namespace blink {
41 
42 class FloatQuad;
43 class IntRect;
44 class IntSize;
45 class LocalFrame;
46 class PopupMenuClient;
47 class WebExternalPopupMenu;
48 class WebMouseEvent;
49 class WebViewImpl;
50 struct WebPopupMenuInfo;
51 
52 // The ExternalPopupMenu connects the actual implementation of the popup menu
53 // to the WebCore popup menu.
54 class ExternalPopupMenu FINAL : public PopupMenu, public WebExternalPopupMenuClient {
55 public:
56     ExternalPopupMenu(LocalFrame&, PopupMenuClient*, WebViewImpl&);
57     virtual ~ExternalPopupMenu();
58 
59     // Fills |info| with the popup menu information contained in the
60     // PopupMenuClient associated with this ExternalPopupMenu.
61     // FIXME: public only for test access. Need to revert once gtest
62     // helpers from chromium are available for blink.
63     static void getPopupMenuInfo(WebPopupMenuInfo&, PopupMenuClient&);
64     static int toPopupMenuItemIndex(int index, PopupMenuClient&);
65     static int toExternalPopupMenuItemIndex(int index, PopupMenuClient&);
66 
67     virtual void trace(Visitor*) OVERRIDE;
68 
69 private:
70     // PopupMenu methods:
71     virtual void show(const FloatQuad& controlPosition, const IntSize&, int index) OVERRIDE;
72     virtual void hide() OVERRIDE;
73     virtual void updateFromElement() OVERRIDE;
74     virtual void disconnectClient() OVERRIDE;
75 
76     // WebExternalPopupClient methods:
77     virtual void didChangeSelection(int index) OVERRIDE;
78     virtual void didAcceptIndex(int index) OVERRIDE;
79     virtual void didAcceptIndices(const WebVector<int>& indices) OVERRIDE;
80     virtual void didCancel() OVERRIDE;
81 
82     void dispatchEvent(Timer<ExternalPopupMenu>*);
83 
84     PopupMenuClient* m_popupMenuClient;
85     RefPtrWillBeMember<LocalFrame> m_localFrame;
86     WebViewImpl& m_webView;
87     OwnPtr<WebMouseEvent> m_syntheticEvent;
88     Timer<ExternalPopupMenu> m_dispatchEventTimer;
89     // The actual implementor of the show menu.
90     WebExternalPopupMenu* m_webExternalPopupMenu;
91 };
92 
93 } // namespace blink
94 
95 #endif // ExternalPopupMenu_h
96