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 #ifndef CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_GTK_H_ 6 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_GTK_H_ 7 8 #include <gtk/gtk.h> 9 10 #include <vector> 11 12 #include "base/memory/scoped_ptr.h" 13 #include "content/common/content_export.h" 14 #include "content/common/drag_event_source_info.h" 15 #include "content/port/browser/render_view_host_delegate_view.h" 16 #include "content/port/browser/web_contents_view_port.h" 17 #include "ui/base/gtk/focus_store_gtk.h" 18 #include "ui/base/gtk/gtk_signal.h" 19 #include "ui/base/gtk/owned_widget_gtk.h" 20 21 namespace content { 22 23 class WebContents; 24 class WebContentsImpl; 25 class WebContentsViewDelegate; 26 class WebDragDestDelegate; 27 class WebDragDestGtk; 28 class WebDragSourceGtk; 29 30 class CONTENT_EXPORT WebContentsViewGtk 31 : public WebContentsViewPort, 32 public RenderViewHostDelegateView { 33 public: 34 // The corresponding WebContentsImpl is passed in the constructor, and manages 35 // our lifetime. This doesn't need to be the case, but is this way currently 36 // because that's what was easiest when they were split. We optionally take 37 // |wrapper| which creates an intermediary widget layer for features from the 38 // Embedding layer that lives with the WebContentsView. 39 WebContentsViewGtk(WebContentsImpl* web_contents, 40 WebContentsViewDelegate* delegate); 41 virtual ~WebContentsViewGtk(); 42 43 WebContentsViewDelegate* delegate() const { return delegate_.get(); } 44 WebContents* web_contents(); 45 46 // WebContentsView implementation -------------------------------------------- 47 48 virtual gfx::NativeView GetNativeView() const OVERRIDE; 49 virtual gfx::NativeView GetContentNativeView() const OVERRIDE; 50 virtual gfx::NativeWindow GetTopLevelNativeWindow() const OVERRIDE; 51 virtual void GetContainerBounds(gfx::Rect* out) const OVERRIDE; 52 virtual void OnTabCrashed(base::TerminationStatus status, 53 int error_code) OVERRIDE; 54 virtual void SizeContents(const gfx::Size& size) OVERRIDE; 55 virtual void Focus() OVERRIDE; 56 virtual void SetInitialFocus() OVERRIDE; 57 virtual void StoreFocus() OVERRIDE; 58 virtual void RestoreFocus() OVERRIDE; 59 virtual DropData* GetDropData() const OVERRIDE; 60 virtual gfx::Rect GetViewBounds() const OVERRIDE; 61 62 // WebContentsViewPort implementation ---------------------------------------- 63 virtual void CreateView( 64 const gfx::Size& initial_size, gfx::NativeView context) OVERRIDE; 65 virtual RenderWidgetHostView* CreateViewForWidget( 66 RenderWidgetHost* render_widget_host) OVERRIDE; 67 virtual RenderWidgetHostView* CreateViewForPopupWidget( 68 RenderWidgetHost* render_widget_host) OVERRIDE; 69 virtual void SetPageTitle(const string16& title) OVERRIDE; 70 virtual void RenderViewCreated(RenderViewHost* host) OVERRIDE; 71 virtual void RenderViewSwappedIn(RenderViewHost* host) OVERRIDE; 72 virtual void SetOverscrollControllerEnabled(bool enabled) OVERRIDE; 73 74 // Backend implementation of RenderViewHostDelegateView. 75 virtual void ShowContextMenu(const ContextMenuParams& params) OVERRIDE; 76 virtual void ShowPopupMenu(const gfx::Rect& bounds, 77 int item_height, 78 double item_font_size, 79 int selected_item, 80 const std::vector<MenuItem>& items, 81 bool right_aligned, 82 bool allow_multiple_selection) OVERRIDE; 83 virtual void StartDragging(const DropData& drop_data, 84 WebKit::WebDragOperationsMask allowed_ops, 85 const gfx::ImageSkia& image, 86 const gfx::Vector2d& image_offset, 87 const DragEventSourceInfo& event_info) OVERRIDE; 88 virtual void UpdateDragCursor(WebKit::WebDragOperation operation) OVERRIDE; 89 virtual void GotFocus() OVERRIDE; 90 virtual void TakeFocus(bool reverse) OVERRIDE; 91 92 private: 93 // Insert the given widget into the content area. Should only be used for 94 // web pages and the like (including interstitials and sad tab). Note that 95 // this will be perfectly happy to insert overlapping render views, so care 96 // should be taken that the correct one is hidden/shown. 97 void InsertIntoContentArea(GtkWidget* widget); 98 99 // Replaces, or updates, the existing WebDragDestGtk with one for |new_host|. 100 // This must be called when swapping in, or creating a swapped in, RVH. 101 void UpdateDragDest(RenderViewHost* new_host); 102 103 // Handle focus traversal on the render widget native view. Can be overridden 104 // by subclasses. 105 CHROMEGTK_CALLBACK_1(WebContentsViewGtk, gboolean, OnFocus, GtkDirectionType); 106 107 // Used to adjust the size of its children when the size of |expanded_| is 108 // changed. 109 CHROMEGTK_CALLBACK_2(WebContentsViewGtk, void, OnChildSizeRequest, 110 GtkWidget*, GtkRequisition*); 111 112 // Used to propagate the size change of |expanded_| to our RWHV to resize the 113 // renderer content. 114 CHROMEGTK_CALLBACK_1(WebContentsViewGtk, void, OnSizeAllocate, 115 GtkAllocation*); 116 117 // The WebContentsImpl whose contents we display. 118 WebContentsImpl* web_contents_; 119 120 // This container holds the tab's web page views. It is a GtkExpandedContainer 121 // so that we can control the size of the web pages. 122 ui::OwnedWidgetGtk expanded_; 123 124 ui::FocusStoreGtk focus_store_; 125 126 // The helper object that handles drag destination related interactions with 127 // GTK. 128 scoped_ptr<WebDragDestGtk> drag_dest_; 129 130 // Object responsible for handling drags from the page for us. 131 scoped_ptr<WebDragSourceGtk> drag_source_; 132 133 // Our optional views wrapper. If non-NULL, we return this widget as our 134 // GetNativeView() and insert |expanded_| as its child in the GtkWidget 135 // hierarchy. 136 scoped_ptr<WebContentsViewDelegate> delegate_; 137 138 // The size we want the view to be. We keep this in a separate variable 139 // because resizing in GTK+ is async. 140 gfx::Size requested_size_; 141 142 DISALLOW_COPY_AND_ASSIGN(WebContentsViewGtk); 143 }; 144 145 } // namespace content 146 147 #endif // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_GTK_H_ 148
