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// 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 CHROME_BROWSER_UI_PANELS_PANEL_VIEW_H_
#define CHROME_BROWSER_UI_PANELS_PANEL_VIEW_H_
#include "base/memory/scoped_ptr.h"
#include "chrome/browser/ui/panels/native_panel.h"
#include "ui/base/animation/animation_delegate.h"
#include "ui/views/widget/widget_delegate.h"
#include "ui/views/widget/widget_observer.h"
class Panel;
class PanelBoundsAnimation;
class PanelFrameView;
class TaskbarWindowThumbnailerWin;
namespace views {
class WebView;
}
class PanelView : public NativePanel,
public views::WidgetObserver,
public views::WidgetDelegateView,
public ui::AnimationDelegate {
public:
// The size of inside area used for mouse resizing.
static const int kResizeInsideBoundsSize = 5;
PanelView(Panel* panel, const gfx::Rect& bounds);
virtual ~PanelView();
// Overridden from NativePanel:
virtual void ShowPanel() OVERRIDE;
virtual void ShowPanelInactive() OVERRIDE;
virtual gfx::Rect GetPanelBounds() const OVERRIDE;
virtual void SetPanelBounds(const gfx::Rect& bounds) OVERRIDE;
virtual void SetPanelBoundsInstantly(const gfx::Rect& bounds) OVERRIDE;
virtual void ClosePanel() OVERRIDE;
virtual void ActivatePanel() OVERRIDE;
virtual void DeactivatePanel() OVERRIDE;
virtual bool IsPanelActive() const OVERRIDE;
virtual void PreventActivationByOS(bool prevent_activation) OVERRIDE;
virtual gfx::NativeWindow GetNativePanelHandle() OVERRIDE;
virtual void UpdatePanelTitleBar() OVERRIDE;
virtual void UpdatePanelLoadingAnimations(bool should_animate) OVERRIDE;
virtual FindBar* CreatePanelFindBar() OVERRIDE;
virtual void NotifyPanelOnUserChangedTheme() OVERRIDE;
virtual void PanelWebContentsFocused(content::WebContents* contents) OVERRIDE;
virtual void PanelCut() OVERRIDE;
virtual void PanelCopy() OVERRIDE;
virtual void PanelPaste() OVERRIDE;
virtual void DrawAttention(bool draw_attention) OVERRIDE;
virtual bool IsDrawingAttention() const OVERRIDE;
virtual bool PreHandlePanelKeyboardEvent(
const content::NativeWebKeyboardEvent& event,
bool* is_keyboard_shortcut) OVERRIDE;
virtual void HandlePanelKeyboardEvent(
const content::NativeWebKeyboardEvent& event) OVERRIDE;
virtual void FullScreenModeChanged(bool is_full_screen) OVERRIDE;
virtual Browser* GetPanelBrowser() const OVERRIDE;
virtual void EnsurePanelFullyVisible() OVERRIDE;
virtual void SetPanelAlwaysOnTop(bool on_top) OVERRIDE;
virtual void EnableResizeByMouse(bool enable) OVERRIDE;
virtual void UpdatePanelMinimizeRestoreButtonVisibility() OVERRIDE;
virtual void PanelExpansionStateChanging(
Panel::ExpansionState old_state,
Panel::ExpansionState new_state) OVERRIDE;
virtual void AttachWebContents(content::WebContents* contents) OVERRIDE;
virtual void DetachWebContents(content::WebContents* contents) OVERRIDE;
virtual gfx::Size WindowSizeFromContentSize(
const gfx::Size& content_size) const OVERRIDE;
virtual gfx::Size ContentSizeFromWindowSize(
const gfx::Size& window_size) const OVERRIDE;
virtual int TitleOnlyHeight() const OVERRIDE;
virtual NativePanelTesting* CreateNativePanelTesting() OVERRIDE;
// Return true if the mouse event is handled.
// |mouse_location| is in screen coordinate system.
bool OnTitlebarMousePressed(const gfx::Point& mouse_location);
bool OnTitlebarMouseDragged(const gfx::Point& mouse_location);
bool OnTitlebarMouseReleased(panel::ClickModifier modifier);
bool OnTitlebarMouseCaptureLost();
PanelFrameView* GetFrameView() const;
bool IsAnimatingBounds() const;
// The panel does not show a resizing border. Instead, the inner content area
// can be used to trigger the mouse resizing. Return true if |mouse_location|
// falls within this area.
// |mouse_location| is in screen coordinate system.
bool IsWithinResizingArea(const gfx::Point& mouse_location) const;
Panel* panel() const { return panel_.get(); }
views::Widget* window() const { return window_; }
bool force_to_paint_as_inactive() const {
return force_to_paint_as_inactive_;
}
private:
enum MouseDraggingState {
NO_DRAGGING,
DRAGGING_STARTED,
DRAGGING_ENDED
};
// Overridden from views::WidgetDelegate:
virtual void OnDisplayChanged() OVERRIDE;
virtual void OnWorkAreaChanged() OVERRIDE;
virtual bool WillProcessWorkAreaChange() const OVERRIDE;
virtual views::View* GetContentsView() OVERRIDE;
virtual views::NonClientFrameView* CreateNonClientFrameView(
views::Widget* widget) OVERRIDE;
virtual bool CanResize() const OVERRIDE;
virtual bool CanMaximize() const OVERRIDE;
virtual views::Widget* GetWidget() OVERRIDE;
virtual const views::Widget* GetWidget() const OVERRIDE;
virtual string16 GetWindowTitle() const OVERRIDE;
virtual gfx::ImageSkia GetWindowIcon() OVERRIDE;
virtual void DeleteDelegate() OVERRIDE;
virtual void OnWindowBeginUserBoundsChange() OVERRIDE;
virtual void OnWindowEndUserBoundsChange() OVERRIDE;
// Overridden from views::View:
virtual void Layout() OVERRIDE;
virtual gfx::Size GetMinimumSize() OVERRIDE;
virtual gfx::Size GetMaximumSize() OVERRIDE;
virtual bool AcceleratorPressed(const ui::Accelerator& accelerator) OVERRIDE;
// Overridden from views::WidgetObserver:
virtual void OnWidgetActivationChanged(views::Widget* widget,
bool active) OVERRIDE;
// Overridden from AnimationDelegate:
virtual void AnimationEnded(const ui::Animation* animation) OVERRIDE;
virtual void AnimationProgressed(const ui::Animation* animation) OVERRIDE;
void UpdateLoadingAnimations(bool should_animate);
void UpdateWindowTitle();
void UpdateWindowIcon();
void SetBoundsInternal(const gfx::Rect& bounds, bool animate);
bool EndDragging(bool cancelled);
void OnViewWasResized();
#if defined(OS_WIN) && !defined(USE_ASH) && !defined(USE_AURA)
// Sets or clears the bitwise |attribute_value| for the attibute denoted by
// |attribute_index|. This is used to update the style or extended style
// for the native window.
void UpdateWindowAttribute(int attribute_index,
int attribute_value,
bool to_set);
#endif
scoped_ptr<Panel> panel_;
gfx::Rect bounds_;
// The window that holds all panel views.
views::Widget* window_;
// The view hosting the web contents.
views::WebView* web_view_;
// Is the panel receiving the focus?
bool focused_;
// Is the mouse button currently down?
bool mouse_pressed_;
// Location the mouse was pressed at or dragged to last time when we process
// the mouse event. Used in drag-and-drop.
// This point is represented in the screen coordinate system.
gfx::Point last_mouse_location_;
// Is the titlebar currently being dragged? That is, has the cursor
// moved more than kDragThreshold away from its starting position?
MouseDraggingState mouse_dragging_state_;
// Used to animate the bounds change.
scoped_ptr<PanelBoundsAnimation> bounds_animator_;
gfx::Rect animation_start_bounds_;
// Is the panel in highlighted state to draw people's attention?
bool is_drawing_attention_;
// Should we force to paint the panel as inactive? This is needed when we need
// to capture the screenshot before an active panel goes minimized.
bool force_to_paint_as_inactive_;
// The last view that had focus in the panel. This is saved so that focus can
// be restored properly when a drag ends.
views::View* old_focused_view_;
#if defined(OS_WIN) && !defined(USE_ASH) && !defined(USE_AURA)
// Used to provide custom taskbar thumbnail for Windows 7 and later.
scoped_ptr<TaskbarWindowThumbnailerWin> thumbnailer_;
#endif
DISALLOW_COPY_AND_ASSIGN(PanelView);
};
#endif // CHROME_BROWSER_UI_PANELS_PANEL_VIEW_H_
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