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// Copyright 2013 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 ASH_SYSTEM_TRAY_HOVER_HIGHLIGHT_VIEW_H_
#define ASH_SYSTEM_TRAY_HOVER_HIGHLIGHT_VIEW_H_
#include "ash/system/tray/actionable_view.h"
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "ui/gfx/font.h"
#include "ui/gfx/text_constants.h"
namespace views {
class Label;
}
namespace ash {
class ViewClickListener;
// A view that changes background color on hover, and triggers a callback in the
// associated ViewClickListener on click. The view can also be forced to
// maintain a fixed height.
class HoverHighlightView : public ActionableView {
public:
explicit HoverHighlightView(ViewClickListener* listener);
~HoverHighlightView() override;
// Convenience function for adding an icon and a label. This also sets the
// accessible name.
void AddIconAndLabel(const gfx::ImageSkia& image,
const base::string16& text,
bool highlight);
// Convenience function for adding an icon and a label. This also sets the
// accessible name. The icon has an indent equal to
// kTrayPopupPaddingHorizontal.
void AddIndentedIconAndLabel(const gfx::ImageSkia& image,
const base::string16& text,
bool highlight);
// Convenience function for adding a label with padding on the left for a
// blank icon. This also sets the accessible name. Returns label after
// parenting it.
views::Label* AddLabel(const base::string16& text,
gfx::HorizontalAlignment alignment,
bool highlight);
// Convenience function for adding an optional check and a label. In the
// absence of a check, padding is added to align with checked items.
// Returns label after parenting it.
views::Label* AddCheckableLabel(const base::string16& text,
bool highlight,
bool checked);
// Allows view to expand its height.
// Size of unexapandable view is fixed and equals to kTrayPopupItemHeight.
void SetExpandable(bool expandable);
void set_highlight_color(SkColor color) { highlight_color_ = color; }
void set_default_color(SkColor color) { default_color_ = color; }
void set_text_highlight_color(SkColor c) { text_highlight_color_ = c; }
void set_text_default_color(SkColor color) { text_default_color_ = color; }
views::Label* text_label() { return text_label_; }
bool hover() const { return hover_; }
protected:
// Overridden from views::View.
void GetAccessibleState(ui::AXViewState* state) override;
// Sets the highlighted color on a text label if |hover| is set.
void SetHoverHighlight(bool hover);
private:
// Actually adds the icon and label but does not set the layout manager
void DoAddIconAndLabel(const gfx::ImageSkia& image,
const base::string16& text,
bool highlight);
// Overridden from ActionableView:
bool PerformAction(const ui::Event& event) override;
// Overridden from views::View.
gfx::Size GetPreferredSize() const override;
int GetHeightForWidth(int width) const override;
void OnMouseEntered(const ui::MouseEvent& event) override;
void OnMouseExited(const ui::MouseEvent& event) override;
void OnGestureEvent(ui::GestureEvent* event) override;
void OnBoundsChanged(const gfx::Rect& previous_bounds) override;
void OnEnabledChanged() override;
void OnPaintBackground(gfx::Canvas* canvas) override;
void OnFocus() override;
ViewClickListener* listener_;
views::Label* text_label_;
SkColor highlight_color_;
SkColor default_color_;
SkColor text_highlight_color_;
SkColor text_default_color_;
bool hover_;
bool expandable_;
bool checkable_;
bool checked_;
DISALLOW_COPY_AND_ASSIGN(HoverHighlightView);
};
} // namespace ash
#endif // ASH_SYSTEM_TRAY_HOVER_HIGHLIGHT_VIEW_H_
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