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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_VIEWS_MEDIA_PREVIEW_MEDIA_VIEW_CONTROLLER_BASE_H_
#define CHROME_BROWSER_UI_VIEWS_MEDIA_PREVIEW_MEDIA_VIEW_CONTROLLER_BASE_H_
#include <stddef.h>
#include <optional>
#include <string>
#include <string_view>
#include "base/callback_list.h"
#include "base/functional/callback.h"
#include "base/memory/raw_ref.h"
#include "chrome/browser/ui/views/media_preview/media_preview_metrics.h"
class MediaView;
namespace views {
class Combobox;
class Label;
} // namespace views
namespace ui {
class ComboboxModel;
} // namespace ui
// This class encapsulates common view logic for both camera and mic media
// views.
class MediaViewControllerBase {
public:
// Gets the combobox selected camera / mic index.
using SourceChangeCallback =
base::RepeatingCallback<void(std::optional<size_t> selected_index)>;
// `source_change_callback` runs on a combobox selection.
MediaViewControllerBase(MediaView& base_view,
bool needs_borders,
ui::ComboboxModel* model,
SourceChangeCallback source_change_callback,
const std::u16string& combobox_accessible_name,
const std::u16string& no_devices_found_combobox_text,
const std::u16string& no_devices_found_label_text,
bool allow_device_selection,
media_preview_metrics::Context metrics_context);
MediaViewControllerBase(const MediaViewControllerBase&) = delete;
MediaViewControllerBase& operator=(const MediaViewControllerBase&) = delete;
~MediaViewControllerBase();
// Returns the immediate parent view of the live camera/mic feeds.
MediaView& GetLiveFeedContainer() { return live_feed_container_.get(); }
// Shows the combobox if `device_count` > 1.
void OnDeviceListChanged(size_t device_count);
const raw_ref<views::Combobox> GetComboboxForTesting() {
return device_selector_combobox_;
}
const raw_ref<views::Label> GetDeviceNameLabelViewForTesting() {
return device_name_label_;
}
const raw_ref<views::Label> GetNoDeviceLabelViewForTesting() {
return no_devices_found_label_;
}
// Only made public for testing purposes.
void OnComboboxMenuWillShow();
private:
void OnComboboxSelection(bool due_to_user_action);
void UpdateDeviceNameLabel();
void AnnounceDynamicChangeIfNeeded(std::u16string_view announcement);
const raw_ref<MediaView> base_view_;
const raw_ref<MediaView> live_feed_container_;
const raw_ref<views::Label> no_devices_found_label_;
const raw_ref<views::Label> device_name_label_;
const raw_ref<views::Combobox> device_selector_combobox_;
const std::u16string no_devices_found_combobox_text_;
const bool allow_device_selection_;
const SourceChangeCallback source_change_callback_;
base::CallbackListSubscription on_menu_will_show_subscription_;
bool has_device_list_changed_before_ = false;
std::u16string previous_device_name_;
const media_preview_metrics::Context metrics_context_;
media_preview_metrics::MediaPreviewDeviceSelectionUserAction user_action_ =
media_preview_metrics::MediaPreviewDeviceSelectionUserAction::kNoAction;
};
#endif // CHROME_BROWSER_UI_VIEWS_MEDIA_PREVIEW_MEDIA_VIEW_CONTROLLER_BASE_H_
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