| // Copyright 2018 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_ACCESSIBILITY_DICTATION_BUTTON_TRAY_H_ |
| #define ASH_SYSTEM_ACCESSIBILITY_DICTATION_BUTTON_TRAY_H_ |
| |
| #include "ash/accelerators/accelerator_controller.h" |
| #include "ash/accessibility/accessibility_observer.h" |
| #include "ash/ash_export.h" |
| #include "ash/session/session_observer.h" |
| #include "ash/shell_observer.h" |
| #include "ash/system/tray/tray_background_view.h" |
| #include "base/macros.h" |
| #include "ui/events/event_constants.h" |
| |
| namespace views { |
| class ImageView; |
| } |
| |
| namespace ash { |
| |
| // Status area tray for showing a toggle for Dictation. Dictation allows |
| // users to have their speech transcribed into a text area. This tray will |
| // only be visible after Dictation is enabled in settings. This tray does not |
| // provide any bubble view windows. |
| class ASH_EXPORT DictationButtonTray : public TrayBackgroundView, |
| public ShellObserver, |
| public AccessibilityObserver { |
| public: |
| explicit DictationButtonTray(Shelf* shelf); |
| ~DictationButtonTray() override; |
| |
| // ActionableView: |
| bool PerformAction(const ui::Event& event) override; |
| |
| // ShellObserver: |
| void OnDictationStarted() override; |
| void OnDictationEnded() override; |
| |
| // AccessibilityObserver: |
| void OnAccessibilityStatusChanged() override; |
| |
| // TrayBackgroundView: |
| void ClickedOutsideBubble() override; |
| base::string16 GetAccessibleNameForTray() override; |
| void HideBubbleWithView(const TrayBubbleView* bubble_view) override; |
| |
| private: |
| friend class DictationButtonTrayTest; |
| |
| // Sets the icon when Dictation is activated / deactiviated. |
| // Also updates visibility when Dictation is enabled / disabled. |
| void UpdateIcon(bool dictation_active); |
| |
| // Updates the visibility of the button. |
| // Currently the button is visible iff experimental accessibility |
| // features are enabled. |
| void UpdateVisibility(); |
| |
| // Actively looks up dictation status and calls UpdateIcon. |
| void CheckDictationStatusAndUpdateIcon(); |
| |
| gfx::ImageSkia on_image_; |
| gfx::ImageSkia off_image_; |
| |
| // Weak pointer, will be parented by TrayContainer for its lifetime. |
| views::ImageView* icon_; |
| |
| DISALLOW_COPY_AND_ASSIGN(DictationButtonTray); |
| }; |
| |
| } // namespace ash |
| |
| #endif // ASH_SYSTEM_ACCESSIBILITY_DICTATION_BUTTON_TRAY_H_ |