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"
19 class PanelBoundsAnimation;
21 class TaskbarWindowThumbnailerWin;
27 class PanelView : public NativePanel,
28 public views::WidgetObserver,
29 public views::WidgetDelegateView,
31 public ui::HWNDMessageFilter,
33 public gfx::AnimationDelegate {
35 // The size of inside area used for mouse resizing.
36 static const int kResizeInsideBoundsSize = 5;
38 PanelView(Panel* panel, const gfx::Rect& bounds, bool always_on_top);
41 // Overridden from NativePanel:
42 virtual void ShowPanel() OVERRIDE;
43 virtual void ShowPanelInactive() OVERRIDE;
44 virtual gfx::Rect GetPanelBounds() const OVERRIDE;
45 virtual void SetPanelBounds(const gfx::Rect& bounds) OVERRIDE;
46 virtual void SetPanelBoundsInstantly(const gfx::Rect& bounds) OVERRIDE;
47 virtual void ClosePanel() OVERRIDE;
48 virtual void ActivatePanel() OVERRIDE;
49 virtual void DeactivatePanel() OVERRIDE;
50 virtual bool IsPanelActive() const OVERRIDE;
51 virtual void PreventActivationByOS(bool prevent_activation) OVERRIDE;
52 virtual gfx::NativeWindow GetNativePanelWindow() OVERRIDE;
53 virtual void UpdatePanelTitleBar() OVERRIDE;
54 virtual void UpdatePanelLoadingAnimations(bool should_animate) OVERRIDE;
55 virtual void PanelWebContentsFocused(content::WebContents* contents) OVERRIDE;
56 virtual void PanelCut() OVERRIDE;
57 virtual void PanelCopy() OVERRIDE;
58 virtual void PanelPaste() OVERRIDE;
59 virtual void DrawAttention(bool draw_attention) OVERRIDE;
60 virtual bool IsDrawingAttention() const OVERRIDE;
61 virtual void HandlePanelKeyboardEvent(
62 const content::NativeWebKeyboardEvent& event) OVERRIDE;
63 virtual void FullScreenModeChanged(bool is_full_screen) OVERRIDE;
64 virtual bool IsPanelAlwaysOnTop() const OVERRIDE;
65 virtual void SetPanelAlwaysOnTop(bool on_top) OVERRIDE;
66 virtual void UpdatePanelMinimizeRestoreButtonVisibility() OVERRIDE;
67 virtual void SetWindowCornerStyle(panel::CornerStyle corner_style) OVERRIDE;
68 virtual void PanelExpansionStateChanging(
69 Panel::ExpansionState old_state,
70 Panel::ExpansionState new_state) OVERRIDE;
71 virtual void AttachWebContents(content::WebContents* contents) OVERRIDE;
72 virtual void DetachWebContents(content::WebContents* contents) OVERRIDE;
73 virtual gfx::Size WindowSizeFromContentSize(
74 const gfx::Size& content_size) const OVERRIDE;
75 virtual gfx::Size ContentSizeFromWindowSize(
76 const gfx::Size& window_size) const OVERRIDE;
77 virtual int TitleOnlyHeight() const OVERRIDE;
78 virtual void MinimizePanelBySystem() OVERRIDE;
79 virtual bool IsPanelMinimizedBySystem() const OVERRIDE;
80 virtual bool IsPanelShownOnActiveDesktop() const OVERRIDE;
81 virtual void ShowShadow(bool show) OVERRIDE;
82 virtual NativePanelTesting* CreateNativePanelTesting() OVERRIDE;
84 // Overridden from views::View:
85 virtual gfx::Size GetMinimumSize() OVERRIDE;
86 virtual gfx::Size GetMaximumSize() OVERRIDE;
88 // Return true if the mouse event is handled.
89 // |mouse_location| is in screen coordinate system.
90 bool OnTitlebarMousePressed(const gfx::Point& mouse_location);
91 bool OnTitlebarMouseDragged(const gfx::Point& mouse_location);
92 bool OnTitlebarMouseReleased(panel::ClickModifier modifier);
93 bool OnTitlebarMouseCaptureLost();
95 PanelFrameView* GetFrameView() const;
96 bool IsAnimatingBounds() const;
98 // The panel does not show a resizing border. Instead, the inner content area
99 // can be used to trigger the mouse resizing. Return true if |mouse_location|
100 // falls within this area.
101 // |mouse_location| is in screen coordinate system.
102 bool IsWithinResizingArea(const gfx::Point& mouse_location) const;
104 Panel* panel() const { return panel_.get(); }
105 views::Widget* window() const { return window_; }
106 bool force_to_paint_as_inactive() const {
107 return force_to_paint_as_inactive_;
110 // PanelStackView might want to update the stored bounds directly since it
111 // has already taken care of updating the window bounds directly.
112 void set_cached_bounds_directly(const gfx::Rect& bounds) { bounds_ = bounds; }
115 enum MouseDraggingState {
121 // Overridden from views::WidgetDelegate:
122 virtual void OnDisplayChanged() OVERRIDE;
123 virtual void OnWorkAreaChanged() OVERRIDE;
124 virtual bool WillProcessWorkAreaChange() const OVERRIDE;
125 virtual views::View* GetContentsView() OVERRIDE;
126 virtual views::NonClientFrameView* CreateNonClientFrameView(
127 views::Widget* widget) OVERRIDE;
128 virtual bool CanResize() const OVERRIDE;
129 virtual bool CanMaximize() const OVERRIDE;
130 virtual views::Widget* GetWidget() OVERRIDE;
131 virtual const views::Widget* GetWidget() const OVERRIDE;
132 virtual string16 GetWindowTitle() const OVERRIDE;
133 virtual gfx::ImageSkia GetWindowAppIcon() OVERRIDE;
134 virtual gfx::ImageSkia GetWindowIcon() OVERRIDE;
135 virtual void WindowClosing() OVERRIDE;
136 virtual void DeleteDelegate() OVERRIDE;
137 virtual void OnWindowBeginUserBoundsChange() OVERRIDE;
138 virtual void OnWindowEndUserBoundsChange() OVERRIDE;
140 // Overridden from views::View:
141 virtual void Layout() OVERRIDE;
142 virtual bool AcceleratorPressed(const ui::Accelerator& accelerator) OVERRIDE;
144 // Overridden from views::WidgetObserver:
145 virtual void OnWidgetDestroying(views::Widget* widget) OVERRIDE;
146 virtual void OnWidgetActivationChanged(views::Widget* widget,
147 bool active) OVERRIDE;
148 virtual void OnWidgetBoundsChanged(views::Widget* widget,
149 const gfx::Rect& new_bounds) OVERRIDE;
151 // Overridden from ui::HWNDMessageFilter:
153 virtual bool FilterMessage(HWND hwnd,
157 LRESULT* l_result) OVERRIDE;
160 // Overridden from AnimationDelegate:
161 virtual void AnimationEnded(const gfx::Animation* animation) OVERRIDE;
162 virtual void AnimationProgressed(const gfx::Animation* animation) OVERRIDE;
164 void UpdateLoadingAnimations(bool should_animate);
165 void UpdateWindowTitle();
166 void UpdateWindowIcon();
167 void SetBoundsInternal(const gfx::Rect& bounds, bool animate);
168 bool EndDragging(bool cancelled);
169 void OnViewWasResized();
171 // Sets the bounds of the underlying window to |new_bounds|. Note that this
172 // might update the window style to work around the minimum overlapped
173 // window height limitation.
174 void SetWidgetBounds(const gfx::Rect& new_bounds);
177 // Sets |attribute_value_to_set| and/or clears |attribute_value_to_reset| for
178 // the attibute denoted by |attribute_index|. This is used to update the style
179 // or extended style for the native window.
180 void UpdateWindowAttribute(int attribute_index,
181 int attribute_value_to_set,
182 int attribute_value_to_reset,
186 scoped_ptr<Panel> panel_;
189 // The window that holds all panel views. Lifetime managed by native widget.
191 views::Widget* window_;
193 // Close gets called more than once, so use this to do one-time clean up once.
196 // The view hosting the web contents. Will be destroyed when child views
197 // of this class are destroyed.
198 views::WebView* web_view_;
200 // True if the panel should always stay on top of other windows.
203 // Is the panel receiving the focus?
206 // True if the user is resizing the panel.
210 // True if the user is resizing the interior edge of a stack.
211 bool user_resizing_interior_stacked_panel_edge_;
213 // The original full size of the resizing panel before the resizing states.
214 gfx::Size original_full_size_of_resizing_panel_;
216 // The original full size of the panel below the resizing panel before the
218 gfx::Size original_full_size_of_panel_below_resizing_panel_;
222 // Is the mouse button currently down?
225 // Location the mouse was pressed at or dragged to last time when we process
226 // the mouse event. Used in drag-and-drop.
227 // This point is represented in the screen coordinate system.
228 gfx::Point last_mouse_location_;
230 // Is the titlebar currently being dragged? That is, has the cursor
231 // moved more than kDragThreshold away from its starting position?
232 MouseDraggingState mouse_dragging_state_;
234 // Used to animate the bounds change.
235 scoped_ptr<PanelBoundsAnimation> bounds_animator_;
236 gfx::Rect animation_start_bounds_;
238 // Is the panel in highlighted state to draw people's attention?
239 bool is_drawing_attention_;
241 // Should we force to paint the panel as inactive? This is needed when we need
242 // to capture the screenshot before an active panel goes minimized.
243 bool force_to_paint_as_inactive_;
245 // The last view that had focus in the panel. This is saved so that focus can
246 // be restored properly when a drag ends.
247 views::View* old_focused_view_;
250 // Used to provide custom taskbar thumbnail for Windows 7 and later.
251 scoped_ptr<TaskbarWindowThumbnailerWin> thumbnailer_;
254 DISALLOW_COPY_AND_ASSIGN(PanelView);
257 #endif // CHROME_BROWSER_UI_VIEWS_PANELS_PANEL_VIEW_H_