// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "base/command_line.h"
#include "content/common/child_thread.h"
#include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
#include "content/common/socket_stream_dispatcher.h"
#include "content/common/webkitplatformsupport_impl.h"
#include "content/public/common/content_client.h"
#include "content/public/common/content_switches.h"
#include "webkit/gpu/webgraphicscontext3d_in_process_impl.h"

namespace content {

namespace {
WebKitPlatformSupportImpl::OffscreenContextFactory* g_context_factory = NULL;
}

WebKitPlatformSupportImpl::WebKitPlatformSupportImpl() {
}

WebKitPlatformSupportImpl::~WebKitPlatformSupportImpl() {
}

string16 WebKitPlatformSupportImpl::GetLocalizedString(int message_id) {
  return content::GetContentClient()->GetLocalizedString(message_id);
}

base::StringPiece WebKitPlatformSupportImpl::GetDataResource(
    int resource_id,
    ui::ScaleFactor scale_factor) {
  return content::GetContentClient()->GetDataResource(resource_id,
                                                      scale_factor);
}

void WebKitPlatformSupportImpl::GetPlugins(
    bool refresh, std::vector<webkit::WebPluginInfo>* plugins) {
  // This should not be called except in the renderer.
  // RendererWebKitPlatformSupportImpl overrides this.
  NOTREACHED();
}

webkit_glue::ResourceLoaderBridge*
WebKitPlatformSupportImpl::CreateResourceLoader(
    const webkit_glue::ResourceLoaderBridge::RequestInfo& request_info) {
  return ChildThread::current()->CreateBridge(request_info);
}

webkit_glue::WebSocketStreamHandleBridge*
WebKitPlatformSupportImpl::CreateWebSocketBridge(
    WebKit::WebSocketStreamHandle* handle,
    webkit_glue::WebSocketStreamHandleDelegate* delegate) {
  SocketStreamDispatcher* dispatcher =
      ChildThread::current()->socket_stream_dispatcher();
  return dispatcher->CreateBridge(handle, delegate);
}

WebKit::WebGraphicsContext3D*
WebKitPlatformSupportImpl::createOffscreenGraphicsContext3D(
    const WebGraphicsContext3D::Attributes& attributes) {
  if (g_context_factory)
    return g_context_factory();
  // The WebGraphicsContext3DInProcessImpl code path is used for
  // layout tests (though not through this code) as well as for
  // debugging and bringing up new ports.
  if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kInProcessWebGL)) {
    return webkit::gpu::WebGraphicsContext3DInProcessImpl::CreateForWebView(
            attributes, false);
  } else {
    // Intentionally blank URL provided for offscreen contexts -- blank URLs are
    // ignored in the GPU process for crash reporting.
    return WebGraphicsContext3DCommandBufferImpl::CreateOffscreenContext(
        GetGpuChannelHostFactory(), attributes, GURL());
  }
}

// static
void WebKitPlatformSupportImpl::SetOffscreenContextFactoryForTest(
      OffscreenContextFactory factory) {
  g_context_factory = factory;
}

GpuChannelHostFactory* WebKitPlatformSupportImpl::GetGpuChannelHostFactory() {
  NOTREACHED();
  return NULL;
}

}  // namespace content