Revert of DevTools: merge devtools target with devtools host, part 1

chrome/browser/devtools/devtools_target_impl.cc

Index: chrome/browser/devtools/devtools_target_impl.cc
diff --git a/chrome/browser/devtools/devtools_target_impl.cc b/chrome/browser/devtools/devtools_target_impl.cc
index ea81477c4767e65d3a9e1bdcb91c0d390d2f37ea..269212439e3e2cfa18ea0b6d54611c0e738fe29a 100644
--- a/chrome/browser/devtools/devtools_target_impl.cc
+++ b/chrome/browser/devtools/devtools_target_impl.cc
@@ -28,6 +28,151 @@
 using content::DevToolsAgentHost;
 using content::WebContents;
 
+const char DevToolsTargetImpl::kTargetTypeApp[] = "app";
+const char DevToolsTargetImpl::kTargetTypeBackgroundPage[] = "background_page";
+const char DevToolsTargetImpl::kTargetTypePage[] = "page";
+const char DevToolsTargetImpl::kTargetTypeWorker[] = "worker";
+const char DevToolsTargetImpl::kTargetTypeWebView[] = "webview";
+const char DevToolsTargetImpl::kTargetTypeIFrame[] = "iframe";
+const char DevToolsTargetImpl::kTargetTypeNode[] = "node";
+const char DevToolsTargetImpl::kTargetTypeOther[] = "other";
+const char DevToolsTargetImpl::kTargetTypeServiceWorker[] = "service_worker";
+
+namespace {
+
+// WebContentsTarget --------------------------------------------------------
+
+class WebContentsTarget : public DevToolsTargetImpl {
+ public:
+  WebContentsTarget(WebContents* web_contents, bool is_tab);
+
+  // DevToolsTargetImpl overrides.
+  int GetTabId() const override;
+  std::string GetExtensionId() const override;
+  void Inspect(Profile* profile) const override;
+
+ private:
+  int tab_id_;
+  std::string extension_id_;
+};
+
+WebContentsTarget::WebContentsTarget(WebContents* web_contents, bool is_tab)
+    : DevToolsTargetImpl(DevToolsAgentHost::GetOrCreateFor(web_contents)),
+      tab_id_(-1) {
+  set_type(kTargetTypeOther);
+
+  guest_view::GuestViewBase* guest =
+      guest_view::GuestViewBase::FromWebContents(web_contents);
+  WebContents* guest_contents = guest ? guest->embedder_web_contents() : NULL;
+  if (guest_contents) {
+    set_type(kTargetTypeWebView);
+    set_parent_id(DevToolsAgentHost::GetOrCreateFor(guest_contents)->GetId());
+    return;
+  }
+
+  if (is_tab) {
+    set_type(kTargetTypePage);
+    tab_id_ = extensions::ExtensionTabUtil::GetTabId(web_contents);
+    return;
+  }
+
+  const extensions::Extension* extension = extensions::ExtensionRegistry::Get(
+      web_contents->GetBrowserContext())->enabled_extensions().GetByID(
+          GetURL().host());
+  if (!extension)
+    return;
+
+  Profile* profile =
+      Profile::FromBrowserContext(web_contents->GetBrowserContext());
+  if (!profile)
+    return;
+  set_title(extension->name());
+  extensions::ExtensionHost* extension_host =
+      extensions::ProcessManager::Get(profile)
+          ->GetBackgroundHostForExtension(extension->id());
+  if (extension_host &&
+      extension_host->host_contents() == web_contents) {
+    set_type(kTargetTypeBackgroundPage);
+    extension_id_ = extension->id();
+  } else if (extension->is_hosted_app()
+             || extension->is_legacy_packaged_app()
+             || extension->is_platform_app()) {
+    set_type(kTargetTypeApp);
+  }
+  set_favicon_url(extensions::ExtensionIconSource::GetIconURL(
+      extension, extension_misc::EXTENSION_ICON_SMALLISH,
+      ExtensionIconSet::MATCH_BIGGER, false, NULL));
+}
+
+int WebContentsTarget::GetTabId() const {
+  return tab_id_;
+}
+
+std::string WebContentsTarget::GetExtensionId() const {
+  return extension_id_;
+}
+
+void WebContentsTarget::Inspect(Profile* profile) const {
+  WebContents* web_contents = GetWebContents();
+  if (!web_contents)
+    return;
+  DevToolsWindow::OpenDevToolsWindow(web_contents);
+}
+
+// FrameTarget ----------------------------------------------------------------
+
+class FrameTarget : public DevToolsTargetImpl {
+ public:
+  explicit FrameTarget(scoped_refptr<DevToolsAgentHost> agent_host);
+
+  // DevToolsTargetImpl overrides:
+  void Inspect(Profile* profile) const override;
+};
+
+FrameTarget::FrameTarget(scoped_refptr<DevToolsAgentHost> agent_host)
+    : DevToolsTargetImpl(agent_host) {
+  set_type(kTargetTypeIFrame);
+  WebContents* wc = agent_host->GetWebContents();
+  DCHECK(DevToolsAgentHost::GetOrCreateFor(wc).get() != agent_host.get());
+  set_parent_id(DevToolsAgentHost::GetOrCreateFor(wc)->GetId());
+}
+
+void FrameTarget::Inspect(Profile* profile) const {
+  DevToolsWindow::OpenDevToolsWindow(profile, GetAgentHost());
+}
+
+// WorkerTarget ----------------------------------------------------------------
+
+class WorkerTarget : public DevToolsTargetImpl {
+ public:
+  explicit WorkerTarget(scoped_refptr<DevToolsAgentHost> agent_host);
+
+  // DevToolsTargetImpl overrides:
+  void Inspect(Profile* profile) const override;
+};
+
+WorkerTarget::WorkerTarget(scoped_refptr<DevToolsAgentHost> agent_host)
+    : DevToolsTargetImpl(agent_host) {
+  switch (agent_host->GetType()) {
+    case DevToolsAgentHost::TYPE_SHARED_WORKER:
+      set_type(kTargetTypeWorker);
+      break;
+    case DevToolsAgentHost::TYPE_SERVICE_WORKER:
+      set_type(kTargetTypeServiceWorker);
+      break;
+    default:
+      NOTREACHED();
+  }
+}
+
+void WorkerTarget::Inspect(Profile* profile) const {
+  DevToolsWindow::OpenDevToolsWindowForWorker(profile, GetAgentHost());
+}
+
+}  // namespace
+
+// DevToolsTargetImpl ----------------------------------------------------------
+
 DevToolsTargetImpl::~DevToolsTargetImpl() {
 }
 
@@ -36,15 +181,70 @@
     : devtools_discovery::BasicTargetDescriptor(agent_host) {
 }
 
+int DevToolsTargetImpl::GetTabId() const {
+  return -1;
+}
+
+WebContents* DevToolsTargetImpl::GetWebContents() const {
+  return GetAgentHost()->GetWebContents();
+}
+
+std::string DevToolsTargetImpl::GetExtensionId() const {
+  return std::string();
+}
+
+void DevToolsTargetImpl::Inspect(Profile* /*profile*/) const {
+}
+
+void DevToolsTargetImpl::Reload() const {
+}
+
+// static
+std::unique_ptr<DevToolsTargetImpl> DevToolsTargetImpl::CreateForTab(
+    content::WebContents* web_contents) {
+  // TODO(dgozman): these checks should not be necessary. See
+  // http://crbug.com/489664.
+  if (!web_contents)
+    return nullptr;
+  if (!DevToolsAgentHost::GetOrCreateFor(web_contents))
+    return nullptr;
+  return std::unique_ptr<DevToolsTargetImpl>(
+      new WebContentsTarget(web_contents, true));
+}
+
 // static
 std::vector<DevToolsTargetImpl*> DevToolsTargetImpl::EnumerateAll() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
+
+  std::set<WebContents*> tab_web_contents;
+  for (TabContentsIterator it; !it.done(); it.Next())
+    tab_web_contents.insert(*it);
 
   std::vector<DevToolsTargetImpl*> result;
   DevToolsAgentHost::List agents = DevToolsAgentHost::GetOrCreateAll();
   for (DevToolsAgentHost::List::iterator it = agents.begin();
        it != agents.end(); ++it) {
-    result.push_back(new DevToolsTargetImpl(*it));
+    DevToolsAgentHost* agent_host = (*it).get();
+    switch (agent_host->GetType()) {
+      case DevToolsAgentHost::TYPE_WEB_CONTENTS:
+        if (WebContents* web_contents = agent_host->GetWebContents()) {
+          const bool is_tab =
+              tab_web_contents.find(web_contents) != tab_web_contents.end();
+          result.push_back(new WebContentsTarget(web_contents, is_tab));
+        }
+        break;
+      case DevToolsAgentHost::TYPE_FRAME:
+        result.push_back(new FrameTarget(agent_host));
+        break;
+      case DevToolsAgentHost::TYPE_SHARED_WORKER:
+        result.push_back(new WorkerTarget(agent_host));
+        break;
+      case DevToolsAgentHost::TYPE_SERVICE_WORKER:
+        result.push_back(new WorkerTarget(agent_host));
+        break;
+      default:
+        break;
+    }
   }
   return result;
 }