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1 // Copyright (c) 2012 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 #include "chrome/browser/ui/gtk/tab_contents/chrome_web_contents_view_delegate_g
tk.h" | |
6 | |
7 #include <map> | |
8 | |
9 #include "base/lazy_instance.h" | |
10 #include "chrome/browser/browser_shutdown.h" | |
11 #include "chrome/browser/ui/gtk/constrained_window_gtk.h" | |
12 #include "chrome/browser/ui/gtk/renderer_context_menu/render_view_context_menu_g
tk.h" | |
13 #include "chrome/browser/ui/gtk/tab_contents/web_drag_bookmark_handler_gtk.h" | |
14 #include "chrome/browser/ui/tab_contents/chrome_web_contents_view_delegate.h" | |
15 #include "content/public/browser/render_process_host.h" | |
16 #include "content/public/browser/render_view_host.h" | |
17 #include "content/public/browser/render_widget_host_view.h" | |
18 #include "content/public/browser/web_contents.h" | |
19 #include "content/public/browser/web_contents_view.h" | |
20 #include "ui/base/gtk/focus_store_gtk.h" | |
21 #include "ui/base/gtk/gtk_floating_container.h" | |
22 | |
23 namespace { | |
24 | |
25 const char kViewDelegateUserDataKey[] = "ChromeWebContentsViewDelegateGtk"; | |
26 | |
27 class ViewDelegateUserData : public base::SupportsUserData::Data { | |
28 public: | |
29 explicit ViewDelegateUserData(ChromeWebContentsViewDelegateGtk* view_delegate) | |
30 : view_delegate_(view_delegate) {} | |
31 virtual ~ViewDelegateUserData() {} | |
32 ChromeWebContentsViewDelegateGtk* view_delegate() { return view_delegate_; } | |
33 | |
34 private: | |
35 ChromeWebContentsViewDelegateGtk* view_delegate_; // unowned | |
36 }; | |
37 | |
38 } // namespace | |
39 | |
40 ChromeWebContentsViewDelegateGtk* ChromeWebContentsViewDelegateGtk::GetFor( | |
41 content::WebContents* web_contents) { | |
42 ViewDelegateUserData* user_data = static_cast<ViewDelegateUserData*>( | |
43 web_contents->GetUserData(&kViewDelegateUserDataKey)); | |
44 | |
45 return user_data ? user_data->view_delegate() : NULL; | |
46 } | |
47 | |
48 ChromeWebContentsViewDelegateGtk::ChromeWebContentsViewDelegateGtk( | |
49 content::WebContents* web_contents) | |
50 : floating_(gtk_floating_container_new()), | |
51 web_contents_modal_dialog_(NULL), | |
52 web_contents_(web_contents), | |
53 expanded_container_(NULL), | |
54 focus_store_(NULL) { | |
55 g_object_ref_sink(floating_.get()); | |
56 gtk_widget_set_name(floating_.get(), "chrome-tab-contents-view"); | |
57 g_signal_connect(floating_.get(), "set-floating-position", | |
58 G_CALLBACK(OnSetFloatingPositionThunk), this); | |
59 | |
60 // Stash this in the WebContents. | |
61 web_contents->SetUserData(&kViewDelegateUserDataKey, | |
62 new ViewDelegateUserData(this)); | |
63 } | |
64 | |
65 ChromeWebContentsViewDelegateGtk::~ChromeWebContentsViewDelegateGtk() { | |
66 } | |
67 | |
68 void ChromeWebContentsViewDelegateGtk::AttachWebContentsModalDialog( | |
69 GtkWidget* web_contents_modal_dialog) { | |
70 DCHECK(web_contents_modal_dialog_ == NULL); | |
71 | |
72 web_contents_modal_dialog_ = web_contents_modal_dialog; | |
73 gtk_floating_container_add_floating(GTK_FLOATING_CONTAINER(floating_.get()), | |
74 web_contents_modal_dialog); | |
75 } | |
76 | |
77 void ChromeWebContentsViewDelegateGtk::RemoveWebContentsModalDialog( | |
78 GtkWidget* web_contents_modal_dialog) { | |
79 DCHECK(web_contents_modal_dialog == web_contents_modal_dialog_); | |
80 | |
81 web_contents_modal_dialog_ = NULL; | |
82 } | |
83 | |
84 void ChromeWebContentsViewDelegateGtk::Initialize( | |
85 GtkWidget* expanded_container, ui::FocusStoreGtk* focus_store) { | |
86 expanded_container_ = expanded_container; | |
87 focus_store_ = focus_store; | |
88 // We install a chrome specific handler to intercept bookmark drags for the | |
89 // bookmark manager/extension API. | |
90 bookmark_handler_gtk_.reset(new WebDragBookmarkHandlerGtk); | |
91 | |
92 gtk_container_add(GTK_CONTAINER(floating_.get()), expanded_container); | |
93 gtk_widget_show(floating_.get()); | |
94 } | |
95 | |
96 gfx::NativeView ChromeWebContentsViewDelegateGtk::GetNativeView() const { | |
97 return floating_.get(); | |
98 } | |
99 | |
100 void ChromeWebContentsViewDelegateGtk::Focus() { | |
101 if (!web_contents_modal_dialog_) { | |
102 GtkWidget* widget = web_contents_->GetView()->GetContentNativeView(); | |
103 if (widget) | |
104 gtk_widget_grab_focus(widget); | |
105 } | |
106 } | |
107 | |
108 gboolean ChromeWebContentsViewDelegateGtk::OnNativeViewFocusEvent( | |
109 GtkWidget* widget, | |
110 GtkDirectionType type, | |
111 gboolean* return_value) { | |
112 // If we are showing a web contents modal dialog, don't allow the native view | |
113 // to take focus. | |
114 if (web_contents_modal_dialog_) { | |
115 // If we return false, it will revert to the default handler, which will | |
116 // take focus. We don't want that. But if we return true, the event will | |
117 // stop being propagated, leaving focus wherever it is currently. That is | |
118 // also bad. So we return false to let the default handler run, but take | |
119 // focus first so as to trick it into thinking the view was already focused | |
120 // and allowing the event to propagate. | |
121 gtk_widget_grab_focus(widget); | |
122 *return_value = FALSE; | |
123 return TRUE; | |
124 } | |
125 | |
126 // Let the default WebContentsViewGtk::OnFocus() behaviour run. | |
127 return FALSE; | |
128 } | |
129 | |
130 void ChromeWebContentsViewDelegateGtk::ShowContextMenu( | |
131 content::RenderFrameHost* render_frame_host, | |
132 const content::ContextMenuParams& params) { | |
133 // Find out the RenderWidgetHostView that corresponds to the render widget on | |
134 // which this context menu is showed, so that we can retrieve the last mouse | |
135 // down event on the render widget and use it as the timestamp of the | |
136 // activation event to show the context menu. | |
137 content::RenderWidgetHostView* view = NULL; | |
138 if (params.custom_context.render_widget_id != | |
139 content::CustomContextMenuContext::kCurrentRenderWidget) { | |
140 content::RenderWidgetHost* host = content::RenderWidgetHost::FromID( | |
141 web_contents_->GetRenderProcessHost()->GetID(), | |
142 params.custom_context.render_widget_id); | |
143 if (!host) { | |
144 NOTREACHED(); | |
145 return; | |
146 } | |
147 view = host->GetView(); | |
148 } else { | |
149 view = web_contents_->GetRenderWidgetHostView(); | |
150 } | |
151 | |
152 context_menu_.reset( | |
153 new RenderViewContextMenuGtk(render_frame_host, params, view)); | |
154 context_menu_->Init(); | |
155 | |
156 // Don't show empty menus. | |
157 if (context_menu_->menu_model().GetItemCount() == 0) | |
158 return; | |
159 | |
160 gfx::Rect bounds; | |
161 web_contents_->GetView()->GetContainerBounds(&bounds); | |
162 gfx::Point point = bounds.origin(); | |
163 point.Offset(params.x, params.y); | |
164 context_menu_->Popup(point); | |
165 } | |
166 | |
167 content::WebDragDestDelegate* | |
168 ChromeWebContentsViewDelegateGtk::GetDragDestDelegate() { | |
169 return bookmark_handler_gtk_.get(); | |
170 } | |
171 | |
172 void ChromeWebContentsViewDelegateGtk::OnSetFloatingPosition( | |
173 GtkWidget* floating_container, GtkAllocation* allocation) { | |
174 if (!web_contents_modal_dialog_) | |
175 return; | |
176 | |
177 // Place each web contents modal dialog in the center of the view. | |
178 GtkWidget* widget = web_contents_modal_dialog_; | |
179 DCHECK(gtk_widget_get_parent(widget) == floating_.get()); | |
180 | |
181 GtkRequisition requisition; | |
182 gtk_widget_size_request(widget, &requisition); | |
183 | |
184 GValue value = { 0, }; | |
185 g_value_init(&value, G_TYPE_INT); | |
186 | |
187 int child_x = std::max((allocation->width - requisition.width) / 2, 0); | |
188 g_value_set_int(&value, child_x); | |
189 gtk_container_child_set_property(GTK_CONTAINER(floating_container), | |
190 widget, "x", &value); | |
191 | |
192 int child_y = std::max((allocation->height - requisition.height) / 2, 0); | |
193 g_value_set_int(&value, child_y); | |
194 gtk_container_child_set_property(GTK_CONTAINER(floating_container), | |
195 widget, "y", &value); | |
196 g_value_unset(&value); | |
197 } | |
198 | |
199 namespace chrome { | |
200 | |
201 content::WebContentsViewDelegate* CreateWebContentsViewDelegate( | |
202 content::WebContents* web_contents) { | |
203 return new ChromeWebContentsViewDelegateGtk(web_contents); | |
204 } | |
205 | |
206 } // namespace chrome | |
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