1 // Copyright (c) 2011 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_CONSTRAINED_WINDOW_GTK_H_ 6 #define CHROME_BROWSER_UI_GTK_CONSTRAINED_WINDOW_GTK_H_ 7 #pragma once 8 9 #include <gtk/gtk.h> 10 11 #include "base/basictypes.h" 12 #include "base/task.h" 13 #include "chrome/browser/ui/gtk/owned_widget_gtk.h" 14 #include "content/browser/tab_contents/constrained_window.h" 15 #include "ui/base/gtk/gtk_signal.h" 16 17 class TabContents; 18 typedef struct _GdkColor GdkColor; 19 #if defined(TOUCH_UI) 20 class TabContentsViewTouch; 21 #else 22 class TabContentsViewGtk; 23 #endif 24 25 class ConstrainedWindowGtkDelegate { 26 public: 27 // Returns the widget that will be put in the constrained window's container. 28 virtual GtkWidget* GetWidgetRoot() = 0; 29 30 // Returns the widget that should get focus when ConstrainedWindow is focused. 31 virtual GtkWidget* GetFocusWidget() = 0; 32 33 // Tells the delegate to either delete itself or set up a task to delete 34 // itself later. 35 virtual void DeleteDelegate() = 0; 36 37 virtual bool GetBackgroundColor(GdkColor* color); 38 39 // Returns true if hosting ConstrainedWindowGtk should apply default padding. 40 virtual bool ShouldHaveBorderPadding() const; 41 42 protected: 43 virtual ~ConstrainedWindowGtkDelegate(); 44 }; 45 46 // Constrained window implementation for the GTK port. Unlike the Win32 system, 47 // ConstrainedWindowGtk doesn't draw draggable fake windows and instead just 48 // centers the dialog. It is thus an order of magnitude simpler. 49 class ConstrainedWindowGtk : public ConstrainedWindow { 50 public: 51 #if defined(TOUCH_UI) 52 typedef TabContentsViewTouch TabContentsViewType; 53 #else 54 typedef TabContentsViewGtk TabContentsViewType; 55 #endif 56 57 virtual ~ConstrainedWindowGtk(); 58 59 // Overridden from ConstrainedWindow: 60 virtual void ShowConstrainedWindow(); 61 virtual void CloseConstrainedWindow(); 62 virtual void FocusConstrainedWindow(); 63 64 // Returns the TabContents that constrains this Constrained Window. owner()65 TabContents* owner() const { return owner_; } 66 67 // Returns the toplevel widget that displays this "window". widget()68 GtkWidget* widget() { return border_.get(); } 69 70 // Returns the View that we collaborate with to position ourselves. 71 TabContentsViewType* ContainingView(); 72 73 private: 74 friend class ConstrainedWindow; 75 76 ConstrainedWindowGtk(TabContents* owner, 77 ConstrainedWindowGtkDelegate* delegate); 78 79 // Signal callbacks. 80 CHROMEGTK_CALLBACK_1(ConstrainedWindowGtk, gboolean, OnKeyPress, 81 GdkEventKey*); 82 CHROMEGTK_CALLBACK_1(ConstrainedWindowGtk, void, OnHierarchyChanged, 83 GtkWidget*); 84 85 // The TabContents that owns and constrains this ConstrainedWindow. 86 TabContents* owner_; 87 88 // The top level widget container that exports to our TabContentsView. 89 OwnedWidgetGtk border_; 90 91 // Delegate that provides the contents of this constrained window. 92 ConstrainedWindowGtkDelegate* delegate_; 93 94 // Stores if |ShowConstrainedWindow()| has been called. 95 bool visible_; 96 97 ScopedRunnableMethodFactory<ConstrainedWindowGtk> factory_; 98 99 DISALLOW_COPY_AND_ASSIGN(ConstrainedWindowGtk); 100 }; 101 102 #endif // CHROME_BROWSER_UI_GTK_CONSTRAINED_WINDOW_GTK_H_ 103