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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/ambient/model/ambient_slideshow_photo_config.h"
namespace ash {
AmbientPhotoConfig CreateAmbientSlideshowPhotoConfig() {
AmbientPhotoConfig config;
// The UI can render both the primary and related photo at the same time in
// certain cases (ex: 2 portrait photos displayed on the left and right
// halves of the screen).
config.should_split_topics = false;
// Always having 2 topics available prevents any chance of screen burn. In
// the worst case scenario that no more assets become available, the slideshow
// can alternate between the 2 topics indefinitely.
config.num_topic_sets_to_buffer = 2;
config.topic_set_size = 1;
config.min_total_topics_required = config.num_topic_sets_to_buffer;
// The view for this UI listens for when a new topic has been committed to
// the model and uses this as a signal to immediately update the UI. Thus,
// it only makes sense to refresh at the end of each cycle. Don't refresh
// at the UI_START_RENDERING mark, otherwise the UI will start rendering the
// initial topic, then immediately transition to another topic once the
// new one is prepared.
config.refresh_topic_markers = {AmbientPhotoConfig::Marker::kUiCycleEnded};
return config;
}
AmbientPhotoConfig CreateAmbientManagedSlideshowPhotoConfig() {
AmbientPhotoConfig config = CreateAmbientSlideshowPhotoConfig();
// Note: This isn't used by the managed code path right now, but for the
// sake of consistency this is being set to the correct value as we
// don't want image pairing in the managed screensaver code path.
config.should_split_topics = true;
return config;
}
} // namespace ash
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