| // 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 <memory> |
| |
| #include "ash/system/accessibility/tray_accessibility.h" |
| #include "ash/system/tray/actionable_view.h" |
| #include "base/bind.h" |
| #include "base/macros.h" |
| #include "ui/gfx/font.h" |
| #include "ui/gfx/text_constants.h" |
| |
| namespace views { |
| class Border; |
| class ImageView; |
| class Label; |
| } |
| |
| namespace ash { |
| class TriView; |
| 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: |
| enum class AccessibilityState { |
| // The default accessibility view. |
| DEFAULT, |
| // This view is a checked checkbox. |
| CHECKED_CHECKBOX, |
| // This view is an unchecked checkbox. |
| UNCHECKED_CHECKBOX |
| }; |
| |
| // If |listener| is null then no action is taken on click. |
| explicit HoverHighlightView(ViewClickListener* listener); |
| ~HoverHighlightView() override; |
| |
| // Convenience function for populating the view with an icon and a label. This |
| // also sets the accessible name. Primarily used for scrollable rows in |
| // detailed views. |
| void AddIconAndLabel(const gfx::ImageSkia& image, const std::u16string& text); |
| |
| // Populates the view with a text label, inset on the left by the horizontal |
| // space that would normally be occupied by an icon. |
| void AddLabelRow(const std::u16string& text); |
| |
| // Populates the view with a text label with custom start inset. |
| void AddLabelRow(const std::u16string& text, int start_inset); |
| |
| // Adds an optional right icon to an already populated view. |icon_size| is |
| // the size of the icon in DP. |
| void AddRightIcon(const gfx::ImageSkia& image, int icon_size); |
| |
| // Adds an optional right view to an already populated view. |
| void AddRightView(views::View* view, |
| std::unique_ptr<views::Border> border = nullptr); |
| |
| // Hides or shows the right view for an already populated view. |
| void SetRightViewVisible(bool visible); |
| |
| // Sets the text of the sub label for an already populated view. |sub_text| |
| // must not be empty and prior to calling this function, |text_label_| must |
| // not be null. |
| void SetSubText(const std::u16string& sub_text); |
| |
| // Allows view to expand its height. Size of unexapandable view is fixed and |
| // equals to kTrayPopupItemHeight. |
| void SetExpandable(bool expandable); |
| |
| // Changes the view's current accessibility state. This will fire an |
| // accessibility event if needed. |
| void SetAccessibilityState(AccessibilityState accessibility_state); |
| |
| // Removes current children of the view so that it can be re-populated. |
| void Reset(); |
| |
| bool is_populated() const { return is_populated_; } |
| |
| views::Label* text_label() { return text_label_; } |
| views::Label* sub_text_label() { return sub_text_label_; } |
| views::ImageView* left_icon() { return left_icon_; } |
| views::View* right_view() { return right_view_; } |
| |
| protected: |
| // Override from Button to also set the tooltip for all child elements. |
| void OnSetTooltipText(const std::u16string& tooltip_text) override; |
| |
| // views::View: |
| void GetAccessibleNodeData(ui::AXNodeData* node_data) override; |
| const char* GetClassName() const override; |
| |
| TriView* tri_view() { return tri_view_; } |
| |
| private: |
| friend class TrayAccessibilityTest; |
| |
| // ActionableView: |
| bool PerformAction(const ui::Event& event) override; |
| |
| // views::View: |
| gfx::Size CalculatePreferredSize() const override; |
| int GetHeightForWidth(int width) const override; |
| void OnFocus() override; |
| |
| void OnEnabledChanged(); |
| |
| // Determines whether the view is populated or not. If it is, Reset() should |
| // be called before re-populating the view. |
| bool is_populated_ = false; |
| |
| ViewClickListener* const listener_ = nullptr; |
| views::Label* text_label_ = nullptr; |
| views::Label* sub_text_label_ = nullptr; |
| views::ImageView* left_icon_ = nullptr; |
| views::View* right_view_ = nullptr; |
| TriView* tri_view_ = nullptr; |
| bool expandable_ = false; |
| AccessibilityState accessibility_state_ = AccessibilityState::DEFAULT; |
| base::CallbackListSubscription enabled_changed_subscription_ = |
| AddEnabledChangedCallback( |
| base::BindRepeating(&HoverHighlightView::OnEnabledChanged, |
| base::Unretained(this))); |
| |
| DISALLOW_COPY_AND_ASSIGN(HoverHighlightView); |
| }; |
| |
| } // namespace ash |
| |
| #endif // ASH_SYSTEM_TRAY_HOVER_HIGHLIGHT_VIEW_H_ |