[DevTools] Migrate android to devtools_discovery.

chrome/browser/android/dev_tools_manager_delegate_android.cc

 // 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_factory.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 "components/devtools_discovery/devtools_discovery_manager.h"
 #include "components/history/core/browser/top_sites.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:
-  std::string GetParentId() const override { return std::string(); }
-
-  std::string GetTitle() const override { return title_; }
-
-  std::string GetDescription() const override { return std::string(); }
-
-  GURL GetURL() const override { return url_; }
-
-  GURL GetFaviconURL() const override { return favicon_url_; }
-
-  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:
-  std::string GetId() const override { return base::IntToString(tab_id_); }
-
-  std::string GetType() const override { return kTargetTypePage; }
-
-  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);
-  }
-
-  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;
-
-      if (!tab->LoadIfNeeded())
-        return NULL;
-
-      web_contents = model->GetWebContentsAt(index);
-      if (!web_contents)
-        return NULL;
-    }
-    return DevToolsAgentHost::GetOrCreateFor(web_contents);
-  }
-
-  bool Activate() const override {
-    TabModel* model;
-    int index;
-    if (!FindTab(&model, &index))
-      return false;
-    model->SetActiveIndex(index);
-    return true;
-  }
-
-  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:
-  std::string GetId() const override { return agent_host_->GetId(); }
-
-  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;
-  }
-
-  bool IsAttached() const override { return agent_host_->IsAttached(); }
-
-  scoped_refptr<DevToolsAgentHost> GetAgentHost() const override {
-    return agent_host_;
-  }
-
-  bool Activate() const override { return agent_host_->Activate(); }
-
-  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));
+  devtools_discovery::DevToolsDiscoveryManager* discovery_manager =
+      devtools_discovery::DevToolsDiscoveryManager::GetInstance();
+  return discovery_manager->CreateNew(url);
 }
 
 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));
-  }
-
+  devtools_discovery::DevToolsDiscoveryManager* discovery_manager =
+      devtools_discovery::DevToolsDiscoveryManager::GetInstance();
+  for (const auto& descriptor : discovery_manager->GetDescriptors())
+    targets.push_back(descriptor);
   callback.Run(targets);
 }
 
 std::string DevToolsManagerDelegateAndroid::GetPageThumbnailData(
     const GURL& url) {
   Profile* profile = ProfileManager::GetLastUsedProfile()->GetOriginalProfile();
   scoped_refptr<history::TopSites> top_sites =
       TopSitesFactory::GetForProfile(profile);
   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();
 }