It is time.

ui/views/views_delegate.h

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef UI_VIEWS_VIEWS_DELEGATE_H_
-#define UI_VIEWS_VIEWS_DELEGATE_H_
-
-#include <string>
-
-#if defined(OS_WIN)
-#include <windows.h>
-#endif
-
-#include "base/strings/string16.h"
-#include "ui/accessibility/ax_enums.h"
-#include "ui/base/ui_base_types.h"
-#include "ui/gfx/native_widget_types.h"
-#include "ui/views/views_export.h"
-#include "ui/views/widget/widget.h"
-
-namespace base {
-class TimeDelta;
-}
-
-namespace content {
-class WebContents;
-class BrowserContext;
-class SiteInstance;
-}
-
-namespace gfx {
-class ImageSkia;
-class Rect;
-}
-
-namespace ui {
-class ContextFactory;
-}
-
-namespace views {
-
-class NativeWidget;
-class NonClientFrameView;
-class ViewsTouchSelectionControllerFactory;
-class View;
-class Widget;
-namespace internal {
-class NativeWidgetDelegate;
-}
-
-// ViewsDelegate is an interface implemented by an object using the views
-// framework. It is used to obtain various high level application utilities
-// and perform some actions such as window placement saving.
-//
-// The embedding app must set views_delegate to assign its ViewsDelegate
-// implementation.
-class VIEWS_EXPORT ViewsDelegate {
- public:
-#if defined(OS_WIN)
-  enum AppbarAutohideEdge {
-    EDGE_TOP    = 1 << 0,
-    EDGE_LEFT   = 1 << 1,
-    EDGE_BOTTOM = 1 << 2,
-    EDGE_RIGHT  = 1 << 3,
-  };
-#endif
-
-  ViewsDelegate();
-  virtual ~ViewsDelegate();
-
-  // Saves the position, size and "show" state for the window with the
-  // specified name.
-  virtual void SaveWindowPlacement(const Widget* widget,
-                                   const std::string& window_name,
-                                   const gfx::Rect& bounds,
-                                   ui::WindowShowState show_state);
-
-  // Retrieves the saved position and size and "show" state for the window with
-  // the specified name.
-  virtual bool GetSavedWindowPlacement(const Widget* widget,
-                                       const std::string& window_name,
-                                       gfx::Rect* bounds,
-                                       ui::WindowShowState* show_state) const;
-
-  virtual void NotifyAccessibilityEvent(View* view, ui::AXEvent event_type);
-
-  // For accessibility, notify the delegate that a menu item was focused
-  // so that alternate feedback (speech / magnified text) can be provided.
-  virtual void NotifyMenuItemFocused(const base::string16& menu_name,
-                                     const base::string16& menu_item_name,
-                                     int item_index,
-                                     int item_count,
-                                     bool has_submenu);
-
-#if defined(OS_WIN)
-  // Retrieves the default window icon to use for windows if none is specified.
-  virtual HICON GetDefaultWindowIcon() const;
-  // Returns true if the window passed in is in the Windows 8 metro
-  // environment.
-  virtual bool IsWindowInMetro(gfx::NativeWindow window) const;
-#elif defined(OS_LINUX) && !defined(OS_CHROMEOS)
-  virtual gfx::ImageSkia* GetDefaultWindowIcon() const;
-#endif
-
-  // Creates a default NonClientFrameView to be used for windows that don't
-  // specify their own. If this function returns NULL, the
-  // views::CustomFrameView type will be used.
-  virtual NonClientFrameView* CreateDefaultNonClientFrameView(Widget* widget);
-
-  // AddRef/ReleaseRef are invoked while a menu is visible. They are used to
-  // ensure we don't attempt to exit while a menu is showing.
-  virtual void AddRef();
-  virtual void ReleaseRef();
-
-  // Creates a web contents. This will return NULL unless overriden.
-  virtual content::WebContents* CreateWebContents(
-      content::BrowserContext* browser_context,
-      content::SiteInstance* site_instance);
-
-  // Gives the platform a chance to modify the properties of a Widget.
-  virtual void OnBeforeWidgetInit(Widget::InitParams* params,
-                                  internal::NativeWidgetDelegate* delegate) = 0;
-
-  // Returns the default obscured text reveal duration.
-  virtual base::TimeDelta GetDefaultTextfieldObscuredRevealDuration();
-
-  // Returns true if the operating system's window manager will always provide a
-  // title bar with caption buttons (ignoring the setting to
-  // |remove_standard_frame| in InitParams). If |maximized|, this applies to
-  // maximized windows; otherwise to restored windows.
-  virtual bool WindowManagerProvidesTitleBar(bool maximized);
-
-#if defined(USE_AURA)
-  // Returns the context factory for new windows.
-  virtual ui::ContextFactory* GetContextFactory();
-#endif
-
-#if defined(OS_WIN)
-  // Starts a query for the appbar autohide edges of the specified monitor and
-  // returns the current value.  If the query finds the edges have changed from
-  // the current value, |callback| is subsequently invoked.  If the edges have
-  // not changed, |callback| is never run.
-  //
-  // The return value is a bitmask of AppbarAutohideEdge.
-  virtual int GetAppbarAutohideEdges(HMONITOR monitor,
-                                     const base::Closure& callback);
-#endif
-
-  // The active ViewsDelegate used by the views system.
-  static ViewsDelegate* views_delegate;
-
- private:
-  scoped_ptr<ViewsTouchSelectionControllerFactory> views_tsc_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(ViewsDelegate);
-};
-
-}  // namespace views
-
-#endif  // UI_VIEWS_VIEWS_DELEGATE_H_