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ash / webui / color_internals / wallpaper_colors_handler_impl.cc [blame]
// Copyright 2022 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/webui/color_internals/wallpaper_colors_handler_impl.h"
#include "ash/public/cpp/wallpaper/wallpaper_controller_observer.h"
#include "ash/shell.h"
#include "ash/wallpaper/wallpaper_controller_impl.h"
#include "ash/webui/color_internals/mojom/color_internals.mojom.h"
#include "base/scoped_observation.h"
namespace ash {
WallpaperColorsHandlerImpl::WallpaperColorsHandlerImpl(
mojo::PendingReceiver<ash::color_internals::mojom::WallpaperColorsHandler>
receiver)
: receiver_(this, std::move(receiver)) {}
WallpaperColorsHandlerImpl::~WallpaperColorsHandlerImpl() = default;
void WallpaperColorsHandlerImpl::SetWallpaperColorsObserver(
mojo::PendingRemote<ash::color_internals::mojom::WallpaperColorsObserver>
observer) {
// May already be bound if user refreshes page.
observer_remote_.reset();
observer_remote_.Bind(std::move(observer));
if (!scoped_wallpaper_controller_observation_.IsObserving()) {
scoped_wallpaper_controller_observation_.Observe(
WallpaperController::Get());
}
// Call it once to initialize the observer.
OnWallpaperColorsChanged();
}
void WallpaperColorsHandlerImpl::OnWallpaperColorsChanged() {
DCHECK(observer_remote_.is_bound());
const auto& calculated_colors =
Shell::Get()->wallpaper_controller()->calculated_colors();
if (!calculated_colors.has_value()) {
return;
}
observer_remote_->OnWallpaperColorsChanged(*calculated_colors);
}
} // namespace ash