Initial checkin of chromecast content embedder (cast_shell) and related build scripts.

chromecast/service/cast_service.cc

+// Copyright (c) 2014 Google Inc. All Rights Reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chromecast/service/cast_service.h"
+
+#include "base/command_line.h"
+#include "base/files/file_path.h"
+#include "base/threading/thread_checker.h"
+#include "chromecast/ui/gfx/gfx_plane.h"
+#include "content/public/browser/render_view_host.h"
+#include "content/public/browser/web_contents.h"
+#include "net/base/net_util.h"
+#include "ui/gfx/size.h"
+#include "url/gurl.h"
+
+namespace chromecast {
+
+namespace {
+
+GURL GetStartupURL() {
+  base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
+  const base::CommandLine::StringVector& args = command_line->GetArgs();
+
+  if (args.empty())
+    return GURL("http://www.google.com/");
+
+  GURL url(args[0]);
+  if (url.is_valid() && url.has_scheme())
+    return url;
+
+  return net::FilePathToFileURL(base::FilePath(args[0]));
+}
+
+gfx::chromecast::GfxPlane* GetGfxPlane(int resolution_height) {
+  gfx::Size requested_screen_size(1280, 720);
+  bool is_1080p_allowed = gfx::chromecast::GfxPlane::Is1080pAllowed();
+  if (resolution_height > 720 && is_1080p_allowed) {
+    requested_screen_size = gfx::Size(1920, 1080);
+  }
+
+  gfx::chromecast::GfxPlane* plane = gfx::chromecast::GfxPlane::GetPrimary();
+  // If a different resolution is requested, we need to re-initialize graphics.
+  if (plane && (plane->size() != requested_screen_size)) {
+    gfx::chromecast::GfxPlane::DestroyPrimary();
+    plane = NULL;
+  }
+
+  if (!plane) {
+    plane = gfx::chromecast::GfxPlane::CreatePrimary(
+        *base::CommandLine::ForCurrentProcess(), requested_screen_size);
+  }
+
+  return plane;
+}
+
+}  // namespace
+
+CastService::CastService(content::BrowserContext* browser_context)
+    : browser_context_(browser_context),
+      stopped_(true),
+      thread_checker_(new base::ThreadChecker()) {
+}
+
+CastService::~CastService() {
+  DCHECK(thread_checker_->CalledOnValidThread());
+  DCHECK(stopped_);
+}
+
+void CastService::Initialize() {
+  PlatformInitialize();
+}
+
+void CastService::Start() {
+  DCHECK(thread_checker_->CalledOnValidThread());
+
+  Initialize();
+
+  gfx::chromecast::GfxPlane* plane = GetGfxPlane(720);
+  DCHECK(plane);
+
+  content::WebContents::CreateParams create_params(browser_context_, NULL);
+  create_params.routing_id = MSG_ROUTING_NONE;
+  create_params.initial_size = gfx::Size(plane->size().width(),
+                                         plane->size().height());
+  // TODO(lcwu): Before we pull in the Chromecast's application management
+  // code, we (temporarily) create a webcontents object here. Once the
+  // application management code is here, a new webcontents object (and
+  // hence the renderer) will be created whenever a new application is
+  // launched, regarless of whether the new app has the same domain as the
+  // previous one.
+  web_contents_.reset(content::WebContents::Create(create_params));
+  web_contents_->GetController().LoadURL(GetStartupURL(),
+                                         content::Referrer(),
+                                         content::PAGE_TRANSITION_TYPED,
+                                         std::string());
+
+  stopped_ = false;
+}
+
+void CastService::Stop() {
+  DCHECK(thread_checker_->CalledOnValidThread());
+
+  web_contents_->GetRenderViewHost()->ClosePage();
+  stopped_ = true;
+}
+
+}  // namespace chromecast