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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 SKY_ENGINE_PUBLIC_WEB_WEBVIEWCLIENT_H_ | |
32 #define SKY_ENGINE_PUBLIC_WEB_WEBVIEWCLIENT_H_ | |
33 | |
34 #include "../platform/WebGraphicsContext3D.h" | |
35 #include "../platform/WebString.h" | |
36 #include "sky/engine/public/platform/WebCommon.h" | |
37 #include "sky/engine/public/platform/WebRect.h" | |
38 #include "sky/engine/public/platform/WebScreenInfo.h" | |
39 #include "sky/engine/public/web/WebFrame.h" | |
40 #include "sky/engine/public/web/WebNavigatorContentUtilsClient.h" | |
41 #include "sky/engine/public/web/WebPageVisibilityState.h" | |
42 #include "sky/engine/public/web/WebTextAffinity.h" | |
43 #include "sky/engine/public/web/WebTextDirection.h" | |
44 | |
45 namespace blink { | |
46 | |
47 class ServiceProvider; | |
48 class WebElement; | |
49 class WebImage; | |
50 class WebKeyboardEvent; | |
51 class WebNode; | |
52 class WebRange; | |
53 class WebURL; | |
54 class WebURLRequest; | |
55 class WebView; | |
56 class WebWidget; | |
57 struct WebConsoleMessage; | |
58 struct WebPoint; | |
59 struct WebRect; | |
60 struct WebSize; | |
61 | |
62 class WebViewClient { | |
63 public: | |
64 virtual ServiceProvider* services() { return nullptr; } | |
65 | |
66 // Initialize compositing for this widget. | |
67 virtual void initializeLayerTreeView() { BLINK_ASSERT_NOT_REACHED(); }; | |
68 | |
69 // Called when the page should pump a frame. | |
70 virtual void scheduleVisualUpdate() { } | |
71 | |
72 // TODO(esprehn): Sky needs to implement these to control the mojo::View. | |
73 | |
74 // Called to get/set the position of the widget in screen coordinates. | |
75 virtual WebRect windowRect() { return WebRect(); } | |
76 virtual void setWindowRect(const WebRect&) { } | |
77 | |
78 // Called to get the position of the root window containing the widget | |
79 // in screen coordinates. | |
80 virtual WebRect rootWindowRect() { return WebRect(); } | |
81 | |
82 // Called to query information about the screen where this widget is | |
83 // displayed. | |
84 virtual WebScreenInfo screenInfo() { return WebScreenInfo(); } | |
85 | |
86 // Called to get the scale factor of the display. | |
87 virtual float deviceScaleFactor() { return 1; } | |
88 | |
89 // Editing ------------------------------------------------------------- | |
90 | |
91 // This method is called in response to WebView's handleInputEvent() | |
92 // when the default action for the current keyboard event is not | |
93 // suppressed by the page, to give the embedder a chance to handle | |
94 // the keyboard event specially. | |
95 // | |
96 // Returns true if the keyboard event was handled by the embedder, | |
97 // indicating that the default action should be suppressed. | |
98 virtual bool handleCurrentKeyboardEvent() { return false; } | |
99 | |
100 // UI ------------------------------------------------------------------ | |
101 | |
102 // Called when script modifies window.status | |
103 virtual void setStatusText(const WebString&) { } | |
104 | |
105 // Called to determine if drag-n-drop operations may initiate a page | |
106 // navigation. | |
107 virtual bool acceptsLoadDrops() { return true; } | |
108 | |
109 // Take focus away from the WebView by focusing an adjacent UI element | |
110 // in the containing window. | |
111 virtual void focusNext() { } | |
112 virtual void focusPrevious() { } | |
113 | |
114 // Called when a new node gets focused. | |
115 virtual void focusedNodeChanged(const WebNode&) { } | |
116 | |
117 // Returns comma separated list of accept languages. | |
118 virtual WebString acceptLanguages() { return WebString(); } | |
119 | |
120 // Developer tools ----------------------------------------------------- | |
121 | |
122 // Called to notify the client that the inspector's settings were | |
123 // changed and should be saved. See WebView::inspectorSettings. | |
124 virtual void didUpdateInspectorSettings() { } | |
125 | |
126 virtual void didUpdateInspectorSetting(const WebString& key, const WebString
& value) { } | |
127 | |
128 // Navigator Content Utils -------------------------------------------- | |
129 | |
130 // Registers a new URL handler for the given protocol. | |
131 virtual void registerProtocolHandler(const WebString& scheme, | |
132 const WebURL& baseUrl, | |
133 const WebURL& url, | |
134 const WebString& title) { } | |
135 | |
136 // Unregisters a given URL handler for the given protocol. | |
137 virtual void unregisterProtocolHandler(const WebString& scheme, const WebURL
& baseUrl, const WebURL& url) { } | |
138 | |
139 // Check if a given URL handler is registered for the given protocol. | |
140 virtual WebCustomHandlersState isProtocolHandlerRegistered(const WebString&
scheme, const WebURL& baseUrl, const WebURL& url) | |
141 { | |
142 return WebCustomHandlersNew; | |
143 } | |
144 | |
145 | |
146 // Visibility ----------------------------------------------------------- | |
147 | |
148 // Returns the current visibility of the WebView. | |
149 virtual WebPageVisibilityState visibilityState() const | |
150 { | |
151 return WebPageVisibilityStateVisible; | |
152 } | |
153 | |
154 protected: | |
155 ~WebViewClient() { } | |
156 }; | |
157 | |
158 } // namespace blink | |
159 | |
160 #endif // SKY_ENGINE_PUBLIC_WEB_WEBVIEWCLIENT_H_ | |
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