It is time.

ui/views/widget/native_widget_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_WIDGET_NATIVE_WIDGET_DELEGATE_H_
-#define UI_VIEWS_WIDGET_NATIVE_WIDGET_DELEGATE_H_
-
-#include <vector>
-
-#include "ui/events/event_constants.h"
-#include "ui/views/views_export.h"
-
-namespace gfx {
-class Canvas;
-class Path;
-class Point;
-class Size;
-}
-
-namespace ui {
-class GestureEvent;
-class KeyEvent;
-class Layer;
-class MouseEvent;
-class TouchEvent;
-class ScrollEvent;
-}
-
-namespace views {
-class InputMethod;
-class Widget;
-
-namespace internal {
-
-////////////////////////////////////////////////////////////////////////////////
-// NativeWidgetDelegate
-//
-//  An interface implemented by the object that handles events sent by a
-//  NativeWidget implementation.
-//
-class VIEWS_EXPORT NativeWidgetDelegate {
- public:
-  virtual ~NativeWidgetDelegate() {}
-
-  // Returns true if the window is modal.
-  virtual bool IsModal() const = 0;
-
-  // Returns true if the window is a dialog box.
-  virtual bool IsDialogBox() const = 0;
-
-  // Returns true if the window can be activated.
-  virtual bool CanActivate() const = 0;
-
-  virtual bool IsInactiveRenderingDisabled() const = 0;
-  virtual void EnableInactiveRendering() = 0;
-
-  // Called when the activation state of a window has changed.
-  virtual void OnNativeWidgetActivationChanged(bool active) = 0;
-
-  // Called when native focus moves from one native view to another.
-  virtual void OnNativeFocus(gfx::NativeView focused_view) = 0;
-  virtual void OnNativeBlur(gfx::NativeView focused_view) = 0;
-
-  // Called when the window is about to be shown/hidden.
-  virtual void OnNativeWidgetVisibilityChanging(bool visible) = 0;
-
-  // Called when the window is shown/hidden.
-  virtual void OnNativeWidgetVisibilityChanged(bool visible) = 0;
-
-  // Called when the native widget is created.
-  // The |desktop_widget| bool is true for widgets created in the desktop and
-  // false for widgets created in the shell.
-  virtual void OnNativeWidgetCreated(bool desktop_widget) = 0;
-
-  // Called just before the native widget is destroyed. This is the delegate's
-  // last chance to do anything with the native widget handle.
-  virtual void OnNativeWidgetDestroying() = 0;
-
-  // Called just after the native widget is destroyed.
-  virtual void OnNativeWidgetDestroyed() = 0;
-
-  // Returns the smallest size the window can be resized to by the user.
-  virtual gfx::Size GetMinimumSize() const = 0;
-
-  // Returns the largest size the window can be resized to by the user.
-  virtual gfx::Size GetMaximumSize() const = 0;
-
-  // Called when the NativeWidget changed position.
-  virtual void OnNativeWidgetMove() = 0;
-
-  // Called when the NativeWidget changed size to |new_size|.
-  // This may happen at the same time as OnNativeWidgetWindowShowStateChanged,
-  // e.g. maximize.
-  virtual void OnNativeWidgetSizeChanged(const gfx::Size& new_size) = 0;
-
-  // Called when the NativeWidget changes its window state.
-  // This may happen at the same time as OnNativeWidgetSizeChanged, e.g.
-  // maximize.
-  virtual void OnNativeWidgetWindowShowStateChanged() = 0;
-
-  // Called when the user begins/ends to change the bounds of the window.
-  virtual void OnNativeWidgetBeginUserBoundsChange() = 0;
-  virtual void OnNativeWidgetEndUserBoundsChange() = 0;
-
-  // Returns true if the delegate has a FocusManager.
-  virtual bool HasFocusManager() const = 0;
-
-  // Paints the widget using acceleration. If the widget is not using
-  // accelerated painting this returns false and does nothing.
-  virtual bool OnNativeWidgetPaintAccelerated(
-      const gfx::Rect& dirty_region) = 0;
-
-  // Paints the rootview in the canvas. This will also refresh the compositor
-  // tree if necessary when accelerated painting is enabled.
-  virtual void OnNativeWidgetPaint(gfx::Canvas* canvas) = 0;
-
-  // Returns the non-client component (see ui/base/hit_test.h) containing
-  // |point|, in client coordinates.
-  virtual int GetNonClientComponent(const gfx::Point& point) = 0;
-
-  // Mouse and key event handlers.
-  virtual void OnKeyEvent(ui::KeyEvent* event) = 0;
-  virtual void OnMouseEvent(ui::MouseEvent* event) = 0;
-  virtual void OnMouseCaptureLost() = 0;
-
-  virtual void OnScrollEvent(ui::ScrollEvent* event) = 0;
-  virtual void OnGestureEvent(ui::GestureEvent* event) = 0;
-
-  // Runs the specified native command. Returns true if the command is handled.
-  virtual bool ExecuteCommand(int command_id) = 0;
-
-  // Returns the input method of the widget this delegate is associated with.
-  // Note that this does not use the top level widget, so may return NULL
-  // if the widget doesn't have input method.
-  virtual InputMethod* GetInputMethodDirect() = 0;
-
-  // Returns the child Layers of the Widgets layer that were created by Views.
-  virtual const std::vector<ui::Layer*>& GetRootLayers() = 0;
-
-  // Returns true if window has a hit-test mask.
-  virtual bool HasHitTestMask() const = 0;
-
-  // Provides the hit-test mask if HasHitTestMask above returns true.
-  virtual void GetHitTestMask(gfx::Path* mask) const = 0;
-
-  //
-  virtual Widget* AsWidget() = 0;
-  virtual const Widget* AsWidget() const = 0;
-
-  // Sets-up the focus manager with the view that should have focus when the
-  // window is shown the first time.  It takes the intended |show_state| of the
-  // window in order to decide whether the window should be focused now or
-  // later.  Returns true if the initial focus has been set or the window should
-  // not set the initial focus, or false if the caller should set the initial
-  // focus (if any).
-  virtual bool SetInitialFocus(ui::WindowShowState show_state) = 0;
-};
-
-}  // namespace internal
-}  // namespace views
-
-#endif  // UI_VIEWS_WIDGET_NATIVE_WIDGET_DELEGATE_H_