1 // Copyright 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 CHROME_BROWSER_UI_GTK_TAB_CONTENTS_CONTAINER_GTK_H_ 6 #define CHROME_BROWSER_UI_GTK_TAB_CONTENTS_CONTAINER_GTK_H_ 7 8 #include <gtk/gtk.h> 9 10 #include "base/basictypes.h" 11 #include "base/compiler_specific.h" 12 #include "chrome/browser/ui/gtk/view_id_util.h" 13 #include "content/public/browser/notification_observer.h" 14 #include "content/public/browser/notification_registrar.h" 15 #include "ui/base/gtk/gtk_signal.h" 16 #include "ui/base/gtk/owned_widget_gtk.h" 17 18 class StatusBubbleGtk; 19 20 namespace content { 21 class WebContents; 22 } 23 24 typedef struct _GtkFloatingContainer GtkFloatingContainer; 25 26 class TabContentsContainerGtk : public content::NotificationObserver, 27 public ViewIDUtil::Delegate { 28 public: 29 explicit TabContentsContainerGtk(StatusBubbleGtk* status_bubble); 30 virtual ~TabContentsContainerGtk(); 31 32 void Init(); 33 34 // Make the specified tab visible. 35 void SetTab(content::WebContents* tab); 36 content::WebContents* tab() const { return tab_; } 37 38 void SetOverlay(content::WebContents* overlay); 39 bool HasOverlay() const { return overlay_ != NULL; } 40 41 // Returns the WebContents currently displayed. 42 content::WebContents* GetVisibleTab() const { 43 return overlay_ ? overlay_ : tab_; 44 } 45 46 // Remove the tab from the hierarchy. 47 void DetachTab(content::WebContents* tab); 48 49 // content::NotificationObserver implementation. 50 virtual void Observe(int type, 51 const content::NotificationSource& source, 52 const content::NotificationDetails& details) OVERRIDE; 53 54 GtkWidget* widget() { return floating_.get(); } 55 56 // ViewIDUtil::Delegate implementation --------------------------------------- 57 virtual GtkWidget* GetWidgetForViewID(ViewID id) OVERRIDE; 58 59 private: 60 // Called when a WebContents is destroyed. This gives us a chance to clean 61 // up our internal state if the WebContents is somehow destroyed before we 62 // get notified. 63 void WebContentsDestroyed(content::WebContents* contents); 64 65 // Handler for |floating_|'s "set-floating-position" signal. During this 66 // callback, we manually set the position of the status bubble. 67 static void OnSetFloatingPosition( 68 GtkFloatingContainer* container, GtkAllocation* allocation, 69 TabContentsContainerGtk* tab_contents_container); 70 71 // Adds |tab| to the container and starts showing it. 72 void PackTab(content::WebContents* tab); 73 74 // Stops showing |tab|. 75 void HideTab(content::WebContents* tab); 76 77 // Handle focus traversal on the tab contents container. Focus should not 78 // traverse to the overlay contents. 79 CHROMEGTK_CALLBACK_1(TabContentsContainerGtk, gboolean, OnFocus, 80 GtkDirectionType); 81 82 content::NotificationRegistrar registrar_; 83 84 // The WebContents for the currently selected tab. This will be showing 85 // unless there is an overlay contents. 86 content::WebContents* tab_; 87 88 // The current overlay contents (for Instant). If non-NULL, it will be 89 // visible. 90 content::WebContents* overlay_; 91 92 // The status bubble manager. Always non-NULL. 93 StatusBubbleGtk* status_bubble_; 94 95 // Top of the TabContentsContainerGtk widget hierarchy. A cross between a 96 // GtkBin and a GtkFixed, |floating_| has |expanded_| as its one "real" child, 97 // and the various things that hang off the bottom (status bubble, etc) have 98 // their positions manually set in OnSetFloatingPosition. 99 ui::OwnedWidgetGtk floating_; 100 101 // We insert and remove WebContents GtkWidgets into this expanded_. This 102 // should not be a GtkVBox since there were errors with timing where the vbox 103 // was horizontally split with the top half displaying the current WebContents 104 // and bottom half displaying the loading page. 105 GtkWidget* expanded_; 106 107 DISALLOW_COPY_AND_ASSIGN(TabContentsContainerGtk); 108 }; 109 110 #endif // CHROME_BROWSER_UI_GTK_TAB_CONTENTS_CONTAINER_GTK_H_ 111
