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.
5 #ifndef CHROME_BROWSER_UI_VIEWS_PANELS_PANEL_VIEW_H_
6 #define CHROME_BROWSER_UI_VIEWS_PANELS_PANEL_VIEW_H_
8 #include "base/memory/scoped_ptr.h"
9 #include "chrome/browser/ui/panels/native_panel.h"
10 #include "ui/gfx/animation/animation_delegate.h"
11 #include "ui/views/widget/widget_delegate.h"
12 #include "ui/views/widget/widget_observer.h"
15 #include "ui/base/win/hwnd_subclass.h"
20 class PanelBoundsAnimation;
22 class TaskbarWindowThumbnailerWin;
28 class PanelView : public NativePanel,
29 public views::WidgetObserver,
30 public views::WidgetDelegateView,
32 public ui::HWNDMessageFilter,
34 public gfx::AnimationDelegate {
36 // The size of inside area used for mouse resizing.
37 static const int kResizeInsideBoundsSize = 5;
39 PanelView(Panel* panel, const gfx::Rect& bounds, bool always_on_top);
42 // Overridden from NativePanel:
43 virtual void ShowPanel() OVERRIDE;
44 virtual void ShowPanelInactive() OVERRIDE;
45 virtual gfx::Rect GetPanelBounds() const OVERRIDE;
46 virtual void SetPanelBounds(const gfx::Rect& bounds) OVERRIDE;
47 virtual void SetPanelBoundsInstantly(const gfx::Rect& bounds) OVERRIDE;
48 virtual void ClosePanel() OVERRIDE;
49 virtual void ActivatePanel() OVERRIDE;
50 virtual void DeactivatePanel() OVERRIDE;
51 virtual bool IsPanelActive() const OVERRIDE;
52 virtual void PreventActivationByOS(bool prevent_activation) OVERRIDE;
53 virtual gfx::NativeWindow GetNativePanelWindow() OVERRIDE;
54 virtual void UpdatePanelTitleBar() OVERRIDE;
55 virtual void UpdatePanelLoadingAnimations(bool should_animate) OVERRIDE;
56 virtual void PanelWebContentsFocused(content::WebContents* contents) OVERRIDE;
57 virtual void PanelCut() OVERRIDE;
58 virtual void PanelCopy() OVERRIDE;
59 virtual void PanelPaste() OVERRIDE;
60 virtual void DrawAttention(bool draw_attention) OVERRIDE;
61 virtual bool IsDrawingAttention() const OVERRIDE;
62 virtual void HandlePanelKeyboardEvent(
63 const content::NativeWebKeyboardEvent& event) OVERRIDE;
64 virtual void FullScreenModeChanged(bool is_full_screen) OVERRIDE;
65 virtual bool IsPanelAlwaysOnTop() const OVERRIDE;
66 virtual void SetPanelAlwaysOnTop(bool on_top) OVERRIDE;
67 virtual void UpdatePanelMinimizeRestoreButtonVisibility() OVERRIDE;
68 virtual void SetWindowCornerStyle(panel::CornerStyle corner_style) OVERRIDE;
69 virtual void PanelExpansionStateChanging(
70 Panel::ExpansionState old_state,
71 Panel::ExpansionState new_state) OVERRIDE;
72 virtual void AttachWebContents(content::WebContents* contents) OVERRIDE;
73 virtual void DetachWebContents(content::WebContents* contents) OVERRIDE;
74 virtual gfx::Size WindowSizeFromContentSize(
75 const gfx::Size& content_size) const OVERRIDE;
76 virtual gfx::Size ContentSizeFromWindowSize(
77 const gfx::Size& window_size) const OVERRIDE;
78 virtual int TitleOnlyHeight() const OVERRIDE;
79 virtual void MinimizePanelBySystem() OVERRIDE;
80 virtual bool IsPanelMinimizedBySystem() const OVERRIDE;
81 virtual bool IsPanelShownOnActiveDesktop() const OVERRIDE;
82 virtual void ShowShadow(bool show) OVERRIDE;
83 virtual NativePanelTesting* CreateNativePanelTesting() OVERRIDE;
85 // Overridden from views::View:
86 virtual gfx::Size GetMinimumSize() const OVERRIDE;
87 virtual gfx::Size GetMaximumSize() const OVERRIDE;
89 // Return true if the mouse event is handled.
90 // |mouse_location| is in screen coordinate system.
91 bool OnTitlebarMousePressed(const gfx::Point& mouse_location);
92 bool OnTitlebarMouseDragged(const gfx::Point& mouse_location);
93 bool OnTitlebarMouseReleased(panel::ClickModifier modifier);
94 bool OnTitlebarMouseCaptureLost();
96 PanelFrameView* GetFrameView() const;
97 bool IsAnimatingBounds() const;
99 Panel* panel() const { return panel_.get(); }
100 views::Widget* window() const { return window_; }
101 bool force_to_paint_as_inactive() const {
102 return force_to_paint_as_inactive_;
105 // PanelStackView might want to update the stored bounds directly since it
106 // has already taken care of updating the window bounds directly.
107 void set_cached_bounds_directly(const gfx::Rect& bounds) { bounds_ = bounds; }
110 enum MouseDraggingState {
116 // Overridden from views::WidgetDelegate:
117 virtual void OnDisplayChanged() OVERRIDE;
118 virtual void OnWorkAreaChanged() OVERRIDE;
119 virtual bool WillProcessWorkAreaChange() const OVERRIDE;
120 virtual views::View* GetContentsView() OVERRIDE;
121 virtual views::NonClientFrameView* CreateNonClientFrameView(
122 views::Widget* widget) OVERRIDE;
123 virtual bool CanResize() const OVERRIDE;
124 virtual bool CanMaximize() const OVERRIDE;
125 virtual bool CanMinimize() const OVERRIDE;
126 virtual views::Widget* GetWidget() OVERRIDE;
127 virtual const views::Widget* GetWidget() const OVERRIDE;
128 virtual base::string16 GetWindowTitle() const OVERRIDE;
129 virtual gfx::ImageSkia GetWindowAppIcon() OVERRIDE;
130 virtual gfx::ImageSkia GetWindowIcon() OVERRIDE;
131 virtual void WindowClosing() OVERRIDE;
132 virtual void DeleteDelegate() OVERRIDE;
133 virtual void OnWindowBeginUserBoundsChange() OVERRIDE;
134 virtual void OnWindowEndUserBoundsChange() OVERRIDE;
136 // Overridden from views::View:
137 virtual void Layout() OVERRIDE;
138 virtual bool AcceleratorPressed(const ui::Accelerator& accelerator) OVERRIDE;
140 // Overridden from views::WidgetObserver:
141 virtual void OnWidgetDestroying(views::Widget* widget) OVERRIDE;
142 virtual void OnWidgetActivationChanged(views::Widget* widget,
143 bool active) OVERRIDE;
144 virtual void OnWidgetBoundsChanged(views::Widget* widget,
145 const gfx::Rect& new_bounds) OVERRIDE;
147 // Overridden from ui::HWNDMessageFilter:
149 virtual bool FilterMessage(HWND hwnd,
153 LRESULT* l_result) OVERRIDE;
156 // Overridden from AnimationDelegate:
157 virtual void AnimationEnded(const gfx::Animation* animation) OVERRIDE;
158 virtual void AnimationProgressed(const gfx::Animation* animation) OVERRIDE;
160 void UpdateLoadingAnimations(bool should_animate);
161 void UpdateWindowTitle();
162 void UpdateWindowIcon();
163 void SetBoundsInternal(const gfx::Rect& bounds, bool animate);
164 bool EndDragging(bool cancelled);
166 // Sets the bounds of the underlying window to |new_bounds|. Note that this
167 // might update the window style to work around the minimum overlapped
168 // window height limitation.
169 void SetWidgetBounds(const gfx::Rect& new_bounds);
172 // Sets |attribute_value_to_set| and/or clears |attribute_value_to_reset| for
173 // the attibute denoted by |attribute_index|. This is used to update the style
174 // or extended style for the native window.
175 void UpdateWindowAttribute(int attribute_index,
176 int attribute_value_to_set,
177 int attribute_value_to_reset,
181 scoped_ptr<Panel> panel_;
184 // The window that holds all panel views. Lifetime managed by native widget.
186 views::Widget* window_;
188 // Close gets called more than once, so use this to do one-time clean up once.
191 // The view hosting the web contents. Will be destroyed when child views
192 // of this class are destroyed.
193 views::WebView* web_view_;
195 // True if the panel should always stay on top of other windows.
198 // Is the panel receiving the focus?
201 // True if the user is resizing the panel.
205 // True if the user is resizing the interior edge of a stack.
206 bool user_resizing_interior_stacked_panel_edge_;
208 // The original full size of the resizing panel before the resizing states.
209 gfx::Size original_full_size_of_resizing_panel_;
211 // The original full size of the panel below the resizing panel before the
213 gfx::Size original_full_size_of_panel_below_resizing_panel_;
217 // Is the mouse button currently down?
220 // Location the mouse was pressed at or dragged to last time when we process
221 // the mouse event. Used in drag-and-drop.
222 // This point is represented in the screen coordinate system.
223 gfx::Point last_mouse_location_;
225 // Is the titlebar currently being dragged? That is, has the cursor
226 // moved more than kDragThreshold away from its starting position?
227 MouseDraggingState mouse_dragging_state_;
229 // Used to animate the bounds change.
230 scoped_ptr<PanelBoundsAnimation> bounds_animator_;
231 gfx::Rect animation_start_bounds_;
233 // Is the panel in highlighted state to draw people's attention?
234 bool is_drawing_attention_;
236 // Should we force to paint the panel as inactive? This is needed when we need
237 // to capture the screenshot before an active panel goes minimized.
238 bool force_to_paint_as_inactive_;
240 // The last view that had focus in the panel. This is saved so that focus can
241 // be restored properly when a drag ends.
242 views::View* old_focused_view_;
244 scoped_ptr<AutoKeepAlive> keep_alive_;
247 // Used to provide custom taskbar thumbnail for Windows 7 and later.
248 scoped_ptr<TaskbarWindowThumbnailerWin> thumbnailer_;
251 DISALLOW_COPY_AND_ASSIGN(PanelView);
254 #endif // CHROME_BROWSER_UI_VIEWS_PANELS_PANEL_VIEW_H_