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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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