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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/app_list/app_list_model_provider.h"
#include "base/check.h"
#include "base/check_op.h"
namespace ash {
namespace {
// Pointer to the global `AppListModelProvider` instance.
AppListModelProvider* g_instance = nullptr;
} // namespace
AppListModelProvider::AppListModelProvider() {
DCHECK(!g_instance);
g_instance = this;
}
AppListModelProvider::~AppListModelProvider() {
DCHECK_EQ(g_instance, this);
g_instance = nullptr;
}
// static
AppListModelProvider* AppListModelProvider::Get() {
return g_instance;
}
void AppListModelProvider::SetActiveModel(
AppListModel* model,
SearchModel* search_model,
QuickAppAccessModel* quick_app_access_model) {
DCHECK(model);
DCHECK(search_model);
DCHECK(quick_app_access_model);
model_ = model;
search_model_ = search_model;
quick_app_access_model_ = quick_app_access_model;
for (auto& observer : observers_)
observer.OnActiveAppListModelsChanged(model_, search_model_);
}
void AppListModelProvider::ClearActiveModel() {
model_ = &default_model_;
search_model_ = &default_search_model_;
quick_app_access_model_ = &default_quick_app_access_model_;
for (auto& observer : observers_)
observer.OnActiveAppListModelsChanged(model_, search_model_);
}
void AppListModelProvider::AddObserver(Observer* observer) {
observers_.AddObserver(observer);
}
void AppListModelProvider::RemoveObserver(Observer* observer) {
observers_.RemoveObserver(observer);
}
} // namespace ash
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