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1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef COMPONENTS_HTML_VIEWER_HTML_WIDGET_H_ | |
6 #define COMPONENTS_HTML_VIEWER_HTML_WIDGET_H_ | |
7 | |
8 #include "base/macros.h" | |
9 #include "third_party/WebKit/public/web/WebViewClient.h" | |
10 #include "third_party/WebKit/public/web/WebWidgetClient.h" | |
11 | |
12 namespace blink { | |
13 class WebFrameWidget; | |
14 } | |
15 | |
16 namespace mojo { | |
17 class Shell; | |
18 } | |
19 | |
20 namespace mus { | |
21 class Window; | |
22 } | |
23 | |
24 namespace html_viewer { | |
25 | |
26 class GlobalState; | |
27 class ImeController; | |
28 class WebLayerTreeViewImpl; | |
29 | |
30 // HTMLWidget is responsible for creation of the WebWidget. Which WebWidget | |
31 // and how it is created depends upon the frame the WebWidget is created for. | |
32 class HTMLWidget { | |
33 public: | |
34 virtual ~HTMLWidget() {} | |
35 | |
36 virtual blink::WebWidget* GetWidget() = 0; | |
37 | |
38 virtual void OnWindowBoundsChanged(mus::Window* window) = 0; | |
39 }; | |
40 | |
41 // Used for the root frame when the root frame is remote. | |
42 class HTMLWidgetRootRemote : public HTMLWidget, public blink::WebViewClient { | |
43 public: | |
44 explicit HTMLWidgetRootRemote(GlobalState* global_state); | |
45 ~HTMLWidgetRootRemote() override; | |
46 | |
47 private: | |
48 // WebViewClient methods: | |
49 blink::WebStorageNamespace* createSessionStorageNamespace() override; | |
50 bool allowsBrokenNullLayerTreeView() const override; | |
51 | |
52 // HTMLWidget: | |
53 blink::WebWidget* GetWidget() override; | |
54 void OnWindowBoundsChanged(mus::Window* window) override; | |
55 | |
56 blink::WebView* web_view_; | |
57 | |
58 DISALLOW_COPY_AND_ASSIGN(HTMLWidgetRootRemote); | |
59 }; | |
60 | |
61 // Used for the root frame when the frame is local. If there is only one | |
62 // frame in the document, this is the HTMLWidget type created. | |
63 class HTMLWidgetRootLocal : public HTMLWidget, public blink::WebViewClient { | |
64 public: | |
65 struct CreateParams { | |
66 CreateParams(mojo::Shell* shell, | |
67 GlobalState* global_state, | |
68 mus::Window* window); | |
69 ~CreateParams(); | |
70 | |
71 mojo::Shell* shell; | |
72 GlobalState* global_state; | |
73 mus::Window* window; | |
74 }; | |
75 | |
76 HTMLWidgetRootLocal(CreateParams* create_params); | |
77 ~HTMLWidgetRootLocal() override; | |
78 | |
79 blink::WebView* web_view() { return web_view_; } | |
80 | |
81 protected: | |
82 // WebViewClient methods: | |
83 blink::WebStorageNamespace* createSessionStorageNamespace() override; | |
84 void initializeLayerTreeView() override; | |
85 blink::WebLayerTreeView* layerTreeView() override; | |
86 void didMeaningfulLayout(blink::WebMeaningfulLayout layout_type) override; | |
87 void resetInputMethod() override; | |
88 void didHandleGestureEvent(const blink::WebGestureEvent& event, | |
89 bool event_cancelled) override; | |
90 void didUpdateTextOfFocusedElementByNonUserInput() override; | |
91 void showImeIfNeeded() override; | |
92 | |
93 private: | |
94 // HTMLWidget: | |
95 blink::WebWidget* GetWidget() override; | |
96 void OnWindowBoundsChanged(mus::Window* window) override; | |
97 | |
98 mojo::Shell* shell_; | |
99 GlobalState* global_state_; | |
100 mus::Window* window_; | |
101 blink::WebView* web_view_; | |
102 scoped_ptr<WebLayerTreeViewImpl> web_layer_tree_view_impl_; | |
103 scoped_ptr<ImeController> ime_controller_; | |
104 | |
105 DISALLOW_COPY_AND_ASSIGN(HTMLWidgetRootLocal); | |
106 }; | |
107 | |
108 // Used for frames other than the root that are local. | |
109 class HTMLWidgetLocalRoot : public HTMLWidget, public blink::WebWidgetClient { | |
110 public: | |
111 HTMLWidgetLocalRoot(mojo::Shell* shell, | |
112 GlobalState* global_state, | |
113 mus::Window* window, | |
114 blink::WebLocalFrame* web_local_frame); | |
115 ~HTMLWidgetLocalRoot() override; | |
116 | |
117 private: | |
118 // HTMLWidget: | |
119 blink::WebWidget* GetWidget() override; | |
120 void OnWindowBoundsChanged(mus::Window* window) override; | |
121 | |
122 // WebWidgetClient: | |
123 void initializeLayerTreeView() override; | |
124 blink::WebLayerTreeView* layerTreeView() override; | |
125 void resetInputMethod() override; | |
126 void didHandleGestureEvent(const blink::WebGestureEvent& event, | |
127 bool event_cancelled) override; | |
128 void didUpdateTextOfFocusedElementByNonUserInput() override; | |
129 void showImeIfNeeded() override; | |
130 | |
131 mojo::Shell* shell_; | |
132 GlobalState* global_state_; | |
133 blink::WebFrameWidget* web_frame_widget_; | |
134 scoped_ptr<WebLayerTreeViewImpl> web_layer_tree_view_impl_; | |
135 scoped_ptr<ImeController> ime_controller_; | |
136 | |
137 DISALLOW_COPY_AND_ASSIGN(HTMLWidgetLocalRoot); | |
138 }; | |
139 | |
140 } // namespace html_viewer | |
141 | |
142 #endif // COMPONENTS_HTML_VIEWER_HTML_WIDGET_H_ | |
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