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* Copyright 2015 Google Inc. All Rights Reserved.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* See the License for the specific language governing permissions and
* limitations under the License.
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "cobalt/dom/array_buffer.h"
#include "cobalt/dom/media_source.h"
#include "cobalt/dom/window.h"
#include "cobalt/media/can_play_type_handler.h"
#include "cobalt/script/environment_settings.h"
namespace cobalt {
namespace loader {
class FetcherFactory;
namespace network {
class NetworkModule;
namespace script {
class GlobalEnvironment;
class JavaScriptEngine;
namespace dom {
// A package of global state to be passed around to script objects
// that ask for it in their IDL custom attributes.
class DOMSettings : public script::EnvironmentSettings {
// Hold optional settings for DOMSettings.
struct Options {
Options() : array_buffer_allocator(NULL), array_buffer_cache(NULL) {}
// ArrayBuffer allocates its memory on the heap by default and ArrayBuffers
// may occupy a lot of memory. It is possible to provide an allocator via
// the following member on some platforms so ArrayBuffer can possibly use
// memory that is not part of the heap.
ArrayBuffer::Allocator* array_buffer_allocator;
// When array_buffer_allocator is provided, we still need to hold certain
// amount of ArrayBuffer inside main memory. So we have provide the
// following cache to manage ArrayBuffer in main memory.
ArrayBuffer::Cache* array_buffer_cache;
DOMSettings(const int max_dom_element_depth,
loader::FetcherFactory* fetcher_factory,
network::NetworkModule* network_module,
const scoped_refptr<Window>& window,
MediaSource::Registry* media_source_registry,
media::CanPlayTypeHandler* can_play_type_handler,
script::JavaScriptEngine* engine,
script::GlobalEnvironment* global_environment_proxy,
const Options& options = Options());
~DOMSettings() OVERRIDE;
int max_dom_element_depth() { return max_dom_element_depth_; }
void set_window(const scoped_refptr<Window>& window) { window_ = window; }
scoped_refptr<Window> window() const { return window_; }
ArrayBuffer::Allocator* array_buffer_allocator() const {
return array_buffer_allocator_;
ArrayBuffer::Cache* array_buffer_cache() const { return array_buffer_cache_; }
void set_fetcher_factory(loader::FetcherFactory* fetcher_factory) {
fetcher_factory_ = fetcher_factory;
loader::FetcherFactory* fetcher_factory() const { return fetcher_factory_; }
void set_network_module(network::NetworkModule* network_module) {
network_module_ = network_module;
network::NetworkModule* network_module() const { return network_module_; }
script::JavaScriptEngine* javascript_engine() const {
return javascript_engine_;
script::GlobalEnvironment* global_environment() const {
return global_environment_;
MediaSource::Registry* media_source_registry() const {
return media_source_registry_;
media::CanPlayTypeHandler* can_play_type_handler() const {
return can_play_type_handler_;
// An absolute URL used to resolve relative URLs.
virtual GURL base_url() const;
const int max_dom_element_depth_;
loader::FetcherFactory* fetcher_factory_;
network::NetworkModule* network_module_;
scoped_refptr<Window> window_;
ArrayBuffer::Allocator* array_buffer_allocator_;
ArrayBuffer::Cache* array_buffer_cache_;
MediaSource::Registry* media_source_registry_;
media::CanPlayTypeHandler* can_play_type_handler_;
script::JavaScriptEngine* javascript_engine_;
script::GlobalEnvironment* global_environment_;
} // namespace dom
} // namespace cobalt