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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 SKY_ENGINE_WEB_WEBVIEWIMPL_H_ | |
32 #define SKY_ENGINE_WEB_WEBVIEWIMPL_H_ | |
33 | |
34 #include "sky/engine/core/rendering/HitTestResult.h" | |
35 #include "sky/engine/platform/geometry/IntPoint.h" | |
36 #include "sky/engine/platform/geometry/IntRect.h" | |
37 #include "sky/engine/platform/graphics/Color.h" | |
38 #include "sky/engine/public/platform/WebInputEvent.h" | |
39 #include "sky/engine/public/platform/WebLayer.h" | |
40 #include "sky/engine/public/platform/WebPoint.h" | |
41 #include "sky/engine/public/platform/WebRect.h" | |
42 #include "sky/engine/public/platform/WebSize.h" | |
43 #include "sky/engine/public/platform/WebString.h" | |
44 #include "sky/engine/public/web/WebNavigationPolicy.h" | |
45 #include "sky/engine/public/web/WebView.h" | |
46 #include "sky/engine/web/ChromeClientImpl.h" | |
47 #include "sky/engine/web/EditorClientImpl.h" | |
48 #include "sky/engine/web/SpellCheckerClientImpl.h" | |
49 #include "sky/engine/wtf/OwnPtr.h" | |
50 #include "sky/engine/wtf/RefCounted.h" | |
51 #include "sky/engine/wtf/Vector.h" | |
52 | |
53 namespace blink { | |
54 | |
55 class Frame; | |
56 class WebLocalFrameImpl; | |
57 class WebImage; | |
58 class WebSettingsImpl; | |
59 class Page; | |
60 | |
61 class WebViewImpl final : public WebView, public RefCounted<WebViewImpl> { | |
62 public: | |
63 static WebViewImpl* create(WebViewClient*); | |
64 | |
65 // WebWidget methods: | |
66 virtual void close() override; | |
67 virtual WebSize size() override; | |
68 | |
69 virtual void resize(const WebSize&) override; | |
70 | |
71 virtual void beginFrame(const WebBeginFrameArgs&) override; | |
72 | |
73 virtual void layout() override; | |
74 virtual void paint(WebCanvas*, const WebRect&) override; | |
75 virtual bool handleInputEvent(const WebInputEvent&) override; | |
76 virtual void setFocus(bool enable) override; | |
77 virtual bool setComposition( | |
78 const WebString& text, | |
79 const WebVector<WebCompositionUnderline>& underlines, | |
80 int selectionStart, | |
81 int selectionEnd) override; | |
82 virtual bool confirmComposition() override; | |
83 virtual bool confirmComposition(ConfirmCompositionBehavior selectionBehavior
) override; | |
84 virtual bool confirmComposition(const WebString& text) override; | |
85 virtual WebTextInputInfo textInputInfo() override; | |
86 | |
87 // WebView methods: | |
88 virtual void setMainFrame(WebFrame*) override; | |
89 virtual void injectModule(const WebString&) override; | |
90 virtual void setSpellCheckClient(WebSpellCheckClient*) override; | |
91 virtual WebSettings* settings() override; | |
92 virtual bool isTransparent() const override; | |
93 virtual void setIsTransparent(bool value) override; | |
94 virtual void setBaseBackgroundColor(WebColor) override; | |
95 virtual bool isActive() const override; | |
96 virtual void setIsActive(bool value) override; | |
97 virtual WebFrame* mainFrame() override; | |
98 virtual WebFrame* focusedFrame() override; | |
99 virtual void setFocusedFrame(WebFrame*) override; | |
100 virtual void setInitialFocus(bool reverse) override; | |
101 virtual void clearFocusedElement() override; | |
102 virtual void advanceFocus(bool reverse) override; | |
103 | |
104 virtual float deviceScaleFactor() const override; | |
105 virtual void setDeviceScaleFactor(float) override; | |
106 | |
107 virtual void spellingMarkers(WebVector<uint32_t>* markers) override; | |
108 virtual void removeSpellingMarkersUnderWords(const WebVector<WebString>& wor
ds) override; | |
109 | |
110 virtual void setShowPaintRects(bool) override; | |
111 void setShowDebugBorders(bool); | |
112 | |
113 virtual void acceptLanguagesChanged() override; | |
114 | |
115 // WebViewImpl | |
116 void setBackgroundColorOverride(WebColor); | |
117 | |
118 Color baseBackgroundColor() const { return m_baseBackgroundColor; } | |
119 | |
120 LocalFrame* focusedCoreFrame() const; | |
121 | |
122 // Returns the currently focused Element or null if no element has focus. | |
123 Element* focusedElement() const; | |
124 | |
125 static WebViewImpl* fromPage(Page*); | |
126 | |
127 WebViewClient* client() | |
128 { | |
129 return m_client; | |
130 } | |
131 | |
132 WebSpellCheckClient* spellCheckClient() | |
133 { | |
134 return m_spellCheckClient; | |
135 } | |
136 | |
137 // Returns the page object associated with this view. This may be null when | |
138 // the page is shutting down, but will be valid at all other times. | |
139 Page* page() const | |
140 { | |
141 return m_page.get(); | |
142 } | |
143 | |
144 // Returns the main frame associated with this view. This may be null when | |
145 // the page is shutting down, but will be valid at all other times. | |
146 WebLocalFrameImpl* mainFrameImpl(); | |
147 | |
148 // Notifies the WebView that a load has been committed. isNewNavigation | |
149 // will be true if a new session history item should be created for that | |
150 // load. isNavigationWithinPage will be true if the navigation does | |
151 // not take the user away from the current page. | |
152 void didCommitLoad(bool isNewNavigation, bool isNavigationWithinPage); | |
153 | |
154 void updateMainFrameLayoutSize(); | |
155 | |
156 void scheduleVisualUpdate(); | |
157 | |
158 virtual void setVisibilityState(WebPageVisibilityState, bool) override; | |
159 | |
160 // Exposed for the purpose of overriding device metrics. | |
161 void sendResizeEventAndRepaint(); | |
162 | |
163 WebSettingsImpl* settingsImpl(); | |
164 | |
165 IntPoint clampOffsetAtScale(const IntPoint& offset, float scale); | |
166 | |
167 // Exposed for tests. | |
168 WebVector<WebCompositionUnderline> compositionUnderlines() const; | |
169 | |
170 bool matchesHeuristicsForGpuRasterizationForTesting() const { return m_match
esHeuristicsForGpuRasterization; } | |
171 | |
172 private: | |
173 IntSize contentsSize() const; | |
174 | |
175 void performResize(); | |
176 | |
177 friend class WebView; // So WebView::Create can call our constructor | |
178 friend class WTF::RefCounted<WebViewImpl>; | |
179 friend void setCurrentInputEventForTest(const WebInputEvent*); | |
180 | |
181 enum DragAction { | |
182 DragEnter, | |
183 DragOver | |
184 }; | |
185 | |
186 explicit WebViewImpl(WebViewClient*); | |
187 virtual ~WebViewImpl(); | |
188 | |
189 WebTextInputType textInputType(); | |
190 int textInputFlags(); | |
191 | |
192 WebString inputModeOfFocusedElement(); | |
193 | |
194 bool confirmComposition(const WebString& text, ConfirmCompositionBehavior); | |
195 | |
196 // Converts |pos| from window coordinates to contents coordinates and gets | |
197 // the HitTestResult for it. | |
198 HitTestResult hitTestResultForWindowPos(const IntPoint&); | |
199 | |
200 void doComposite(); | |
201 void reallocateRenderer(); | |
202 | |
203 WebViewClient* m_client; // Can be 0 (e.g. unittests, shared workers, etc.) | |
204 WebSpellCheckClient* m_spellCheckClient; | |
205 | |
206 ChromeClientImpl m_chromeClientImpl; | |
207 EditorClientImpl m_editorClientImpl; | |
208 SpellCheckerClientImpl m_spellCheckerClientImpl; | |
209 | |
210 WebSize m_size; | |
211 bool m_fixedLayoutSizeLock; | |
212 | |
213 OwnPtr<Page> m_page; | |
214 | |
215 // An object that can be used to manipulate m_page->settings() without linki
ng | |
216 // against WebCore. This is lazily allocated the first time GetWebSettings() | |
217 // is called. | |
218 OwnPtr<WebSettingsImpl> m_webSettings; | |
219 | |
220 WebSize m_rootLayerOffset; | |
221 float m_rootLayerScale; | |
222 | |
223 // Webkit expects keyPress events to be suppressed if the associated keyDown | |
224 // event was handled. Safari implements this behavior by peeking out the | |
225 // associated WM_CHAR event if the keydown was handled. We emulate | |
226 // this behavior by setting this flag if the keyDown was handled. | |
227 bool m_suppressNextKeypressEvent; | |
228 | |
229 // Represents whether or not this object should process incoming IME events. | |
230 bool m_imeAcceptEvents; | |
231 | |
232 // Whether the webview is rendering transparently. | |
233 bool m_isTransparent; | |
234 | |
235 WebLayer* m_rootLayer; | |
236 bool m_matchesHeuristicsForGpuRasterization; | |
237 // If true, the graphics context is being restored. | |
238 bool m_recreatingGraphicsContext; | |
239 static const WebInputEvent* m_currentInputEvent; | |
240 | |
241 WebPoint m_positionOnFlingStart; | |
242 WebPoint m_globalPositionOnFlingStart; | |
243 int m_flingModifier; | |
244 bool m_flingSourceDevice; | |
245 | |
246 bool m_showPaintRects; | |
247 bool m_showDebugBorders; | |
248 WebColor m_baseBackgroundColor; | |
249 WebColor m_backgroundColorOverride; | |
250 }; | |
251 | |
252 // We have no ways to check if the specified WebView is an instance of | |
253 // WebViewImpl because WebViewImpl is the only implementation of WebView. | |
254 DEFINE_TYPE_CASTS(WebViewImpl, WebView, webView, true, true); | |
255 | |
256 } // namespace blink | |
257 | |
258 #endif // SKY_ENGINE_WEB_WEBVIEWIMPL_H_ | |
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