ui/base/base_window.h

   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 UI_BASE_BASE_WINDOW_H_
   6 #define UI_BASE_BASE_WINDOW_H_
   7
   8 #include "base/compiler_specific.h"
   9 #include "ui/base/ui_base_types.h"  // WindowShowState
  10 #include "ui/gfx/native_widget_types.h"
  11
  12 namespace gfx {
  13 class Rect;
  14 }
  15
  16 class SkRegion;
  17
  18 namespace ui {
  19
  20 // Provides an interface to perform actions on windows, and query window
  21 // state.
  22 class UI_BASE_EXPORT BaseWindow {
  23  public:
  24   // Returns true if the window is currently the active/focused window.
  25   virtual bool IsActive() const = 0;
  26
  27   // Returns true if the window is maximized (aka zoomed).
  28   virtual bool IsMaximized() const = 0;
  29
  30   // Returns true if the window is minimized.
  31   virtual bool IsMinimized() const = 0;
  32
  33   // Returns true if the window is full screen.
  34   virtual bool IsFullscreen() const = 0;
  35
  36   // Returns true if the window is fully restored (not Fullscreen, Maximized,
  37   // Minimized).
  38   static bool IsRestored(const BaseWindow& window);
  39
  40   // Return a platform dependent identifier for this window.
  41   virtual gfx::NativeWindow GetNativeWindow() const = 0;
  42
  43   // Returns the nonmaximized bounds of the window (even if the window is
  44   // currently maximized or minimized) in terms of the screen coordinates.
  45   virtual gfx::Rect GetRestoredBounds() const = 0;
  46
  47   // Returns the restore state for the window (platform dependent).
  48   virtual ui::WindowShowState GetRestoredState() const = 0;
  49
  50   // Retrieves the window's current bounds, including its window.
  51   // This will only differ from GetRestoredBounds() for maximized
  52   // and minimized windows.
  53   virtual gfx::Rect GetBounds() const = 0;
  54
  55   // Shows the window, or activates it if it's already visible.
  56   virtual void Show() = 0;
  57
  58   // Hides the window.
  59   virtual void Hide() = 0;
  60
  61   // Show the window, but do not activate it. Does nothing if window
  62   // is already visible.
  63   virtual void ShowInactive() = 0;
  64
  65   // Closes the window as soon as possible. The close action may be delayed
  66   // if an operation is in progress (e.g. a drag operation).
  67   virtual void Close() = 0;
  68
  69   // Activates (brings to front) the window. Restores the window from minimized
  70   // state if necessary.
  71   virtual void Activate() = 0;
  72
  73   // Deactivates the window, making the next window in the Z order the active
  74   // window.
  75   virtual void Deactivate() = 0;
  76
  77   // Maximizes/minimizes/restores the window.
  78   virtual void Maximize() = 0;
  79   virtual void Minimize() = 0;
  80   virtual void Restore() = 0;
  81
  82   // Sets the window's size and position to the specified values.
  83   virtual void SetBounds(const gfx::Rect& bounds) = 0;
  84
  85   // Flashes the taskbar item associated with this window.
  86   // Set |flash| to true to initiate flashing, false to stop flashing.
  87   virtual void FlashFrame(bool flash) = 0;
  88
  89   // Returns true if a window is set to be always on top.
  90   virtual bool IsAlwaysOnTop() const = 0;
  91
  92   // If set to true, the window will stay on top of other windows which do not
  93   // have this flag enabled.
  94   virtual void SetAlwaysOnTop(bool always_on_top) = 0;
  95 };
  96
  97 }  // namespace ui
  98
  99 #endif  // UI_BASE_BASE_WINDOW_H_