[DevTools] Move target-related methods from DevToolsHttpHandlerDelegate to DevToolsManagerDelegate.

chrome/browser/android/dev_tools_manager_delegate_android.cc

Index: chrome/browser/android/dev_tools_manager_delegate_android.cc
diff --git a/chrome/browser/android/dev_tools_manager_delegate_android.cc b/chrome/browser/android/dev_tools_manager_delegate_android.cc
new file mode 100644
index 0000000000000000000000000000000000000000..2754946b111ee5b9eabf1f5ecda21f9c47e7398f
--- /dev/null
+++ b/chrome/browser/android/dev_tools_manager_delegate_android.cc
@@ -0,0 +1,345 @@
+// Copyright 2014 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 "chrome/browser/android/dev_tools_manager_delegate_android.h"
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "base/strings/string_number_conversions.h"
+#include "base/strings/utf_string_conversions.h"
+#include "chrome/browser/android/tab_android.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/history/top_sites.h"
+#include "chrome/browser/profiles/profile_manager.h"
+#include "chrome/browser/ui/android/tab_model/tab_model.h"
+#include "chrome/browser/ui/android/tab_model/tab_model_list.h"
+#include "content/public/browser/devtools_agent_host.h"
+#include "content/public/browser/devtools_target.h"
+#include "content/public/browser/favicon_status.h"
+#include "content/public/browser/navigation_entry.h"
+#include "content/public/browser/web_contents.h"
+
+using content::DevToolsAgentHost;
+using content::WebContents;
+
+namespace {
+
+const char kTargetTypePage[] = "page";
+const char kTargetTypeServiceWorker[] = "service_worker";
+const char kTargetTypeOther[] = "other";
+
+GURL GetFaviconURLForContents(WebContents* web_contents) {
+  content::NavigationController& controller = web_contents->GetController();
+  content::NavigationEntry* entry = controller.GetActiveEntry();
+  if (entry != NULL && entry->GetURL().is_valid())
+    return entry->GetFavicon().url;
+  return GURL();
+}
+
+GURL GetFaviconURLForAgentHost(
+    scoped_refptr<DevToolsAgentHost> agent_host) {
+  if (WebContents* web_contents = agent_host->GetWebContents())
+    return GetFaviconURLForContents(web_contents);
+  return GURL();
+}
+
+base::TimeTicks GetLastActiveTimeForAgentHost(
+    scoped_refptr<DevToolsAgentHost> agent_host) {
+  if (WebContents* web_contents = agent_host->GetWebContents())
+    return web_contents->GetLastActiveTime();
+  return base::TimeTicks();
+}
+
+class TargetBase : public content::DevToolsTarget {
+ public:
+  // content::DevToolsTarget implementation:
+  virtual std::string GetParentId() const OVERRIDE { return std::string(); }
+
+  virtual std::string GetTitle() const OVERRIDE { return title_; }
+
+  virtual std::string GetDescription() const OVERRIDE { return std::string(); }
+
+  virtual GURL GetURL() const OVERRIDE { return url_; }
+
+  virtual GURL GetFaviconURL() const OVERRIDE { return favicon_url_; }
+
+  virtual base::TimeTicks GetLastActivityTime() const OVERRIDE {
+    return last_activity_time_;
+  }
+
+ protected:
+  explicit TargetBase(WebContents* web_contents)
+      : title_(base::UTF16ToUTF8(web_contents->GetTitle())),
+        url_(web_contents->GetURL()),
+        favicon_url_(GetFaviconURLForContents(web_contents)),
+        last_activity_time_(web_contents->GetLastActiveTime()) {
+  }
+
+  explicit TargetBase(scoped_refptr<DevToolsAgentHost> agent_host)
+      : title_(agent_host->GetTitle()),
+        url_(agent_host->GetURL()),
+        favicon_url_(GetFaviconURLForAgentHost(agent_host)),
+        last_activity_time_(GetLastActiveTimeForAgentHost(agent_host)) {
+  }
+
+  TargetBase(const std::string& title, const GURL& url)
+      : title_(title),
+        url_(url) {
+  }
+
+ private:
+  const std::string title_;
+  const GURL url_;
+  const GURL favicon_url_;
+  const base::TimeTicks last_activity_time_;
+};
+
+class TabTarget : public TargetBase {
+ public:
+  static TabTarget* CreateForWebContents(int tab_id,
+                                         WebContents* web_contents) {
+    return new TabTarget(tab_id, web_contents);
+  }
+
+  static TabTarget* CreateForUnloadedTab(int tab_id,
+                                         const base::string16& title,
+                                         const GURL& url) {
+    return new TabTarget(tab_id, title, url);
+  }
+
+  // content::DevToolsTarget implementation:
+  virtual std::string GetId() const OVERRIDE {
+    return base::IntToString(tab_id_);
+  }
+
+  virtual std::string GetType() const OVERRIDE {
+    return kTargetTypePage;
+  }
+
+  virtual bool IsAttached() const OVERRIDE {
+    TabModel* model;
+    int index;
+    if (!FindTab(&model, &index))
+      return false;
+    WebContents* web_contents = model->GetWebContentsAt(index);
+    if (!web_contents)
+      return false;
+    return DevToolsAgentHost::IsDebuggerAttached(web_contents);
+  }
+
+  virtual scoped_refptr<DevToolsAgentHost> GetAgentHost() const OVERRIDE {
+    TabModel* model;
+    int index;
+    if (!FindTab(&model, &index))
+      return NULL;
+    WebContents* web_contents = model->GetWebContentsAt(index);
+    if (!web_contents) {
+      // The tab has been pushed out of memory, pull it back.
+      TabAndroid* tab = model->GetTabAt(index);
+      if (!tab)
+        return NULL;
+
+      tab->LoadIfNeeded();
+      web_contents = model->GetWebContentsAt(index);
+      if (!web_contents)
+        return NULL;
+    }
+    return DevToolsAgentHost::GetOrCreateFor(web_contents);
+  }
+
+  virtual bool Activate() const OVERRIDE {
+    TabModel* model;
+    int index;
+    if (!FindTab(&model, &index))
+      return false;
+    model->SetActiveIndex(index);
+    return true;
+  }
+
+  virtual bool Close() const OVERRIDE {
+    TabModel* model;
+    int index;
+    if (!FindTab(&model, &index))
+      return false;
+    model->CloseTabAt(index);
+    return true;
+  }
+
+ private:
+  TabTarget(int tab_id, WebContents* web_contents)
+      : TargetBase(web_contents),
+        tab_id_(tab_id) {
+  }
+
+  TabTarget(int tab_id, const base::string16& title, const GURL& url)
+      : TargetBase(base::UTF16ToUTF8(title), url),
+        tab_id_(tab_id) {
+  }
+
+  bool FindTab(TabModel** model_result, int* index_result) const {
+    for (TabModelList::const_iterator iter = TabModelList::begin();
+        iter != TabModelList::end(); ++iter) {
+      TabModel* model = *iter;
+      for (int i = 0; i < model->GetTabCount(); ++i) {
+        TabAndroid* tab = model->GetTabAt(i);
+        if (tab && tab->GetAndroidId() == tab_id_) {
+          *model_result = model;
+          *index_result = i;
+          return true;
+        }
+      }
+    }
+    return false;
+  }
+
+  const int tab_id_;
+};
+
+class NonTabTarget : public TargetBase {
+ public:
+  explicit NonTabTarget(scoped_refptr<DevToolsAgentHost> agent_host)
+      : TargetBase(agent_host),
+        agent_host_(agent_host) {
+  }
+
+  // content::DevToolsTarget implementation:
+  virtual std::string GetId() const OVERRIDE {
+    return agent_host_->GetId();
+  }
+
+  virtual std::string GetType() const OVERRIDE {
+    switch (agent_host_->GetType()) {
+      case DevToolsAgentHost::TYPE_WEB_CONTENTS:
+        if (TabModelList::begin() == TabModelList::end()) {
+          // If there are no tab models we must be running in ChromeShell.
+          // Return the 'page' target type for backwards compatibility.
+          return kTargetTypePage;
+        }
+        break;
+      case DevToolsAgentHost::TYPE_SERVICE_WORKER:
+        return kTargetTypeServiceWorker;
+      default:
+        break;
+    }
+    return kTargetTypeOther;
+  }
+
+  virtual bool IsAttached() const OVERRIDE {
+    return agent_host_->IsAttached();
+  }
+
+  virtual scoped_refptr<DevToolsAgentHost> GetAgentHost() const OVERRIDE {
+    return agent_host_;
+  }
+
+  virtual bool Activate() const OVERRIDE {
+    return agent_host_->Activate();
+  }
+
+  virtual bool Close() const OVERRIDE {
+    return agent_host_->Close();
+  }
+
+ private:
+  scoped_refptr<DevToolsAgentHost> agent_host_;
+};
+
+}  // namespace
+
+DevToolsManagerDelegateAndroid::DevToolsManagerDelegateAndroid()
+    : network_protocol_handler_(new DevToolsNetworkProtocolHandler()) {
+}
+
+DevToolsManagerDelegateAndroid::~DevToolsManagerDelegateAndroid() {
+}
+
+void DevToolsManagerDelegateAndroid::Inspect(
+    content::BrowserContext* browser_context,
+    content::DevToolsAgentHost* agent_host) {
+}
+
+base::DictionaryValue* DevToolsManagerDelegateAndroid::HandleCommand(
+    content::DevToolsAgentHost* agent_host,
+    base::DictionaryValue* command_dict) {
+  return network_protocol_handler_->HandleCommand(agent_host, command_dict);
+}
+
+void DevToolsManagerDelegateAndroid::DevToolsAgentStateChanged(
+    content::DevToolsAgentHost* agent_host,
+    bool attached) {
+  network_protocol_handler_->DevToolsAgentStateChanged(agent_host, attached);
+}
+
+scoped_ptr<content::DevToolsTarget>
+    DevToolsManagerDelegateAndroid::CreateNewTarget(const GURL& url) {
+  if (TabModelList::empty())
+    return scoped_ptr<content::DevToolsTarget>();
+
+  TabModel* tab_model = TabModelList::get(0);
+  if (!tab_model)
+    return scoped_ptr<content::DevToolsTarget>();
+
+  WebContents* web_contents = tab_model->CreateNewTabForDevTools(url);
+  if (!web_contents)
+    return scoped_ptr<content::DevToolsTarget>();
+
+  TabAndroid* tab = TabAndroid::FromWebContents(web_contents);
+  if (!tab)
+    return scoped_ptr<content::DevToolsTarget>();
+
+  return scoped_ptr<content::DevToolsTarget>(
+      TabTarget::CreateForWebContents(tab->GetAndroidId(), web_contents));
+}
+
+void DevToolsManagerDelegateAndroid::EnumerateTargets(TargetCallback callback) {
+  TargetList targets;
+
+  // Enumerate existing tabs, including the ones with no WebContents.
+  std::set<WebContents*> tab_web_contents;
+  for (TabModelList::const_iterator iter = TabModelList::begin();
+      iter != TabModelList::end(); ++iter) {
+    TabModel* model = *iter;
+    for (int i = 0; i < model->GetTabCount(); ++i) {
+      TabAndroid* tab = model->GetTabAt(i);
+      if (!tab)
+        continue;
+
+      WebContents* web_contents = model->GetWebContentsAt(i);
+      if (web_contents) {
+        tab_web_contents.insert(web_contents);
+        targets.push_back(TabTarget::CreateForWebContents(tab->GetAndroidId(),
+                                                          web_contents));
+      } else {
+        targets.push_back(TabTarget::CreateForUnloadedTab(tab->GetAndroidId(),
+                                                          tab->GetTitle(),
+                                                          tab->GetURL()));
+      }
+    }
+  }
+
+  // Add targets for WebContents not associated with any tabs.
+  DevToolsAgentHost::List agents = DevToolsAgentHost::GetOrCreateAll();
+  for (DevToolsAgentHost::List::iterator it = agents.begin();
+       it != agents.end(); ++it) {
+    if (WebContents* web_contents = (*it)->GetWebContents()) {
+      if (tab_web_contents.find(web_contents) != tab_web_contents.end())
+        continue;
+    }
+    targets.push_back(new NonTabTarget(*it));
+  }
+
+  callback.Run(targets);
+}
+
+std::string DevToolsManagerDelegateAndroid::GetPageThumbnailData(
+    const GURL& url) {
+  Profile* profile = ProfileManager::GetLastUsedProfile()->GetOriginalProfile();
+  history::TopSites* top_sites = profile->GetTopSites();
+  if (top_sites) {
+    scoped_refptr<base::RefCountedMemory> data;
+    if (top_sites->GetPageThumbnail(url, false, &data))
+      return std::string(data->front_as<char>(), data->size());
+  }
+  return std::string();
+}