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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ASH_SYSTEM_AUDIO_UNIFIED_VOLUME_VIEW_H_
#define ASH_SYSTEM_AUDIO_UNIFIED_VOLUME_VIEW_H_
#include "ash/accessibility/accessibility_controller.h"
#include "ash/accessibility/accessibility_observer.h"
#include "ash/ash_export.h"
#include "ash/resources/vector_icons/vector_icons.h"
#include "ash/system/audio/unified_volume_slider_controller.h"
#include "ash/system/tray/tray_constants.h"
#include "ash/system/unified/quick_settings_slider.h"
#include "ash/system/unified/unified_slider_view.h"
#include "base/memory/raw_ptr.h"
#include "chromeos/ash/components/audio/cras_audio_handler.h"
#include "ui/base/metadata/metadata_header_macros.h"
namespace ash {
class IconButton;
class UnifiedVolumeSliderController;
// View of a slider that can change audio volume.
class ASH_EXPORT UnifiedVolumeView : public UnifiedSliderView,
public AccessibilityObserver,
public CrasAudioHandler::AudioObserver {
METADATA_HEADER(UnifiedVolumeView, UnifiedSliderView)
public:
// This constructor is to create the `UnifiedVolumeView` with a trailing
// settings button that leads to `AudioDetailedView`, i.e. volume slider in
// the Quick Settings main page and Quick Settings toasts. `delegate` is used
// to construct the callback for `more_button_`. The displayed slider will
// always be the active output node, so `device_id` is not needed.
UnifiedVolumeView(UnifiedVolumeSliderController* controller,
UnifiedVolumeSliderController::Delegate* delegate,
bool is_active_output_node);
// This constructor is for single `UnifiedVolumeView`, i.e. volume sliders in
// `AudioDetailedView`. `delegate` is not needed since there'll be no trailing
// `more_button_`.
UnifiedVolumeView(UnifiedVolumeSliderController* controller,
uint64_t device_id,
bool is_active_output_node,
const gfx::Insets& inside_padding);
UnifiedVolumeView(const UnifiedVolumeView&) = delete;
UnifiedVolumeView& operator=(const UnifiedVolumeView&) = delete;
~UnifiedVolumeView() override;
// References to the icons that correspond to different volume levels used in
// the `QuickSettingsSlider`. Defined as a public member to be used in tests.
static constexpr const gfx::VectorIcon* kQsVolumeLevelIcons[] = {
&kUnifiedMenuVolumeMuteIcon, // Muted.
&kUnifiedMenuVolumeMediumIcon, // Medium volume.
&kUnifiedMenuVolumeHighIcon, // High volume.
};
// The maximum index of `kQsVolumeLevelIcons`.
static constexpr int kQsVolumeLevels = std::size(kQsVolumeLevelIcons) - 1;
IconButton* more_button() { return more_button_; }
private:
friend class UnifiedVolumeViewTest;
void Update(bool by_user);
// Get `VectorIcon` reference that corresponds to the given volume level.
// `level` is between 0.0 to 1.0 inclusive.
const gfx::VectorIcon& GetVolumeIconForLevel(float level);
// Callback called when the `live_caption_button_` is pressed.
void OnLiveCaptionButtonPressed();
// CrasAudioHandler::AudioObserver:
void OnOutputNodeVolumeChanged(uint64_t node_id, int volume) override;
void OnOutputMuteChanged(bool mute_on) override;
void OnAudioNodesChanged() override;
void OnActiveOutputNodeChanged() override;
void OnActiveInputNodeChanged() override;
// AccessibilityObserver:
void OnAccessibilityStatusChanged() override;
// UnifiedSliderView:
void ChildVisibilityChanged(views::View* child) override;
void VisibilityChanged(View* starting_from, bool is_visible) override;
const raw_ptr<IconButton> more_button_;
// Whether this `UnifiedVolumeView` is the view for the active output node.
bool const is_active_output_node_;
uint64_t device_id_ = 0;
// Owned by the views hierarchy.
raw_ptr<IconButton> live_caption_button_ = nullptr;
};
} // namespace ash
#endif // ASH_SYSTEM_AUDIO_UNIFIED_VOLUME_VIEW_H_
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