Revert of Move core web_view code to extensions.

chrome/browser/guest_view/web_view/web_view_guest.h

+// 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.
+
+#ifndef CHROME_BROWSER_GUEST_VIEW_WEB_VIEW_WEB_VIEW_GUEST_H_
+#define CHROME_BROWSER_GUEST_VIEW_WEB_VIEW_WEB_VIEW_GUEST_H_
+
+#include <vector>
+
+#include "base/observer_list.h"
+#include "chrome/browser/guest_view/web_view/javascript_dialog_helper.h"
+#include "chrome/browser/guest_view/web_view/web_view_find_helper.h"
+#include "chrome/browser/guest_view/web_view/web_view_permission_helper.h"
+#include "chrome/browser/guest_view/web_view/web_view_permission_types.h"
+#include "content/public/browser/javascript_dialog_manager.h"
+#include "content/public/browser/notification_observer.h"
+#include "content/public/browser/notification_registrar.h"
+#include "extensions/browser/guest_view/guest_view.h"
+#include "extensions/browser/guest_view/web_view/web_view_guest_delegate.h"
+#include "extensions/browser/script_executor.h"
+#include "third_party/WebKit/public/web/WebFindOptions.h"
+
+namespace extensions {
+
+class WebViewInternalFindFunction;
+
+// A WebViewGuest provides the browser-side implementation of the <webview> API
+// and manages the dispatch of <webview> extension events. WebViewGuest is
+// created on attachment. That is, when a guest WebContents is associated with
+// a particular embedder WebContents. This happens on either initial navigation
+// or through the use of the New Window API, when a new window is attached to
+// a particular <webview>.
+class WebViewGuest : public GuestView<WebViewGuest>,
+                     public content::NotificationObserver {
+ public:
+  static GuestViewBase* Create(content::BrowserContext* browser_context,
+                               int guest_instance_id);
+
+  // For WebViewGuest, we create special guest processes, which host the
+  // tag content separately from the main application that embeds the tag.
+  // A <webview> can specify both the partition name and whether the storage
+  // for that partition should be persisted. Each tag gets a SiteInstance with
+  // a specially formatted URL, based on the application it is hosted by and
+  // the partition requested by it. The format for that URL is:
+  // chrome-guest://partition_domain/persist?partition_name
+  static bool GetGuestPartitionConfigForSite(const GURL& site,
+                                             std::string* partition_domain,
+                                             std::string* partition_name,
+                                             bool* in_memory);
+
+  // Returns guestview::kInstanceIDNone if |contents| does not correspond to a
+  // WebViewGuest.
+  static int GetViewInstanceId(content::WebContents* contents);
+
+  static const char Type[];
+
+  // Request navigating the guest to the provided |src| URL.
+  void NavigateGuest(const std::string& src);
+
+  // Shows the context menu for the guest.
+  // |items| acts as a filter. This restricts the current context's default
+  // menu items to contain only the items from |items|.
+  // |items| == NULL means no filtering will be applied.
+  void ShowContextMenu(
+      int request_id,
+      const WebViewGuestDelegate::MenuItemVector* items);
+
+  // Sets the frame name of the guest.
+  void SetName(const std::string& name);
+
+  // Set the zoom factor.
+  void SetZoom(double zoom_factor);
+
+  // GuestViewBase implementation.
+  virtual const char* GetAPINamespace() OVERRIDE;
+  virtual void CreateWebContents(
+      const std::string& embedder_extension_id,
+      int embedder_render_process_id,
+      const base::DictionaryValue& create_params,
+      const WebContentsCreatedCallback& callback) OVERRIDE;
+  virtual void DidAttachToEmbedder() OVERRIDE;
+  virtual void DidInitialize() OVERRIDE;
+  virtual void DidStopLoading() OVERRIDE;
+  virtual void EmbedderDestroyed() OVERRIDE;
+  virtual void GuestDestroyed() OVERRIDE;
+  virtual void GuestReady() OVERRIDE;
+  virtual void GuestSizeChangedDueToAutoSize(
+      const gfx::Size& old_size,
+      const gfx::Size& new_size) OVERRIDE;
+  virtual bool IsAutoSizeSupported() const OVERRIDE;
+  virtual bool IsDragAndDropEnabled() const OVERRIDE;
+  virtual void WillAttachToEmbedder() OVERRIDE;
+  virtual void WillDestroy() OVERRIDE;
+
+  // WebContentsDelegate implementation.
+  virtual bool AddMessageToConsole(content::WebContents* source,
+                                   int32 level,
+                                   const base::string16& message,
+                                   int32 line_no,
+                                   const base::string16& source_id) OVERRIDE;
+  virtual void LoadProgressChanged(content::WebContents* source,
+                                   double progress) OVERRIDE;
+  virtual void CloseContents(content::WebContents* source) OVERRIDE;
+  virtual void FindReply(content::WebContents* source,
+                         int request_id,
+                         int number_of_matches,
+                         const gfx::Rect& selection_rect,
+                         int active_match_ordinal,
+                         bool final_update) OVERRIDE;
+  virtual bool HandleContextMenu(
+      const content::ContextMenuParams& params) OVERRIDE;
+  virtual void HandleKeyboardEvent(
+      content::WebContents* source,
+      const content::NativeWebKeyboardEvent& event) OVERRIDE;
+  virtual void RendererResponsive(content::WebContents* source) OVERRIDE;
+  virtual void RendererUnresponsive(content::WebContents* source) OVERRIDE;
+  virtual void RequestMediaAccessPermission(
+      content::WebContents* source,
+      const content::MediaStreamRequest& request,
+      const content::MediaResponseCallback& callback) OVERRIDE;
+  virtual void CanDownload(content::RenderViewHost* render_view_host,
+                           const GURL& url,
+                           const std::string& request_method,
+                           const base::Callback<void(bool)>& callback) OVERRIDE;
+  virtual content::JavaScriptDialogManager*
+      GetJavaScriptDialogManager() OVERRIDE;
+  virtual content::ColorChooser* OpenColorChooser(
+      content::WebContents* web_contents,
+      SkColor color,
+      const std::vector<content::ColorSuggestion>& suggestions) OVERRIDE;
+  virtual void RunFileChooser(
+      content::WebContents* web_contents,
+      const content::FileChooserParams& params) OVERRIDE;
+  virtual void AddNewContents(content::WebContents* source,
+                              content::WebContents* new_contents,
+                              WindowOpenDisposition disposition,
+                              const gfx::Rect& initial_pos,
+                              bool user_gesture,
+                              bool* was_blocked) OVERRIDE;
+  virtual content::WebContents* OpenURLFromTab(
+      content::WebContents* source,
+      const content::OpenURLParams& params) OVERRIDE;
+  virtual void WebContentsCreated(content::WebContents* source_contents,
+                                  int opener_render_frame_id,
+                                  const base::string16& frame_name,
+                                  const GURL& target_url,
+                                  content::WebContents* new_contents) OVERRIDE;
+
+  // BrowserPluginGuestDelegate implementation.
+  virtual content::WebContents* CreateNewGuestWindow(
+      const content::WebContents::CreateParams& create_params) OVERRIDE;
+  virtual void RequestPointerLockPermission(
+      bool user_gesture,
+      bool last_unlocked_by_target,
+      const base::Callback<void(bool)>& callback) OVERRIDE;
+  // NotificationObserver implementation.
+  virtual void Observe(int type,
+                       const content::NotificationSource& source,
+                       const content::NotificationDetails& details) OVERRIDE;
+
+  // Returns the current zoom factor.
+  double GetZoom();
+
+  // Begin or continue a find request.
+  void Find(
+      const base::string16& search_text,
+      const blink::WebFindOptions& options,
+      scoped_refptr<WebViewInternalFindFunction> find_function);
+
+  // Conclude a find request to clear highlighting.
+  void StopFinding(content::StopFindAction);
+
+  // If possible, navigate the guest to |relative_index| entries away from the
+  // current navigation entry.
+  void Go(int relative_index);
+
+  // Reload the guest.
+  void Reload();
+
+  typedef base::Callback<void(bool /* allow */,
+                              const std::string& /* user_input */)>
+      PermissionResponseCallback;
+  int RequestPermission(
+      WebViewPermissionType permission_type,
+      const base::DictionaryValue& request_info,
+      const PermissionResponseCallback& callback,
+      bool allowed_by_default);
+
+  // Requests Geolocation Permission from the embedder.
+  void RequestGeolocationPermission(int bridge_id,
+                                    const GURL& requesting_frame,
+                                    bool user_gesture,
+                                    const base::Callback<void(bool)>& callback);
+  void CancelGeolocationPermissionRequest(int bridge_id);
+
+  // Called when file system access is requested by the guest content using the
+  // HTML5 file system API in main thread, or a worker thread.
+  // The request is plumbed through the <webview> permission request API. The
+  // request will be:
+  // - Allowed if the embedder explicitly allowed it.
+  // - Denied if the embedder explicitly denied.
+  // - Determined by the guest's content settings if the embedder does not
+  // perform an explicit action.
+  void RequestFileSystemPermission(const GURL& url,
+                                   bool allowed_by_default,
+                                   const base::Callback<void(bool)>& callback);
+
+  // Overrides the user agent for this guest.
+  // This affects subsequent guest navigations.
+  void SetUserAgentOverride(const std::string& user_agent_override);
+
+  // Stop loading the guest.
+  void Stop();
+
+  // Kill the guest process.
+  void Terminate();
+
+  // Clears data in the storage partition of this guest.
+  //
+  // Partition data that are newer than |removal_since| will be removed.
+  // |removal_mask| corresponds to bitmask in StoragePartition::RemoveDataMask.
+  bool ClearData(const base::Time remove_since,
+                 uint32 removal_mask,
+                 const base::Closure& callback);
+
+  ScriptExecutor* script_executor() { return script_executor_.get(); }
+
+ private:
+  friend class WebViewPermissionHelper;
+  WebViewGuest(content::BrowserContext* browser_context,
+               int guest_instance_id);
+
+  virtual ~WebViewGuest();
+
+  void AttachWebViewHelpers(content::WebContents* contents);
+
+  void OnWebViewNewWindowResponse(int new_window_instance_id,
+                                  bool allow,
+                                  const std::string& user_input);
+
+  // WebContentsObserver implementation.
+  virtual void DidCommitProvisionalLoadForFrame(
+      content::RenderFrameHost* render_frame_host,
+      const GURL& url,
+      content::PageTransition transition_type) OVERRIDE;
+  virtual void DidFailProvisionalLoad(
+      content::RenderFrameHost* render_frame_host,
+      const GURL& validated_url,
+      int error_code,
+      const base::string16& error_description) OVERRIDE;
+  virtual void DidStartProvisionalLoadForFrame(
+      content::RenderFrameHost* render_frame_host,
+      const GURL& validated_url,
+      bool is_error_page,
+      bool is_iframe_srcdoc) OVERRIDE;
+  virtual void DocumentLoadedInFrame(
+      content::RenderFrameHost* render_frame_host) OVERRIDE;
+  virtual bool OnMessageReceived(
+      const IPC::Message& message,
+      content::RenderFrameHost* render_frame_host) OVERRIDE;
+  virtual void RenderProcessGone(base::TerminationStatus status) OVERRIDE;
+  virtual void UserAgentOverrideSet(const std::string& user_agent) OVERRIDE;
+
+  // Informs the embedder of a frame name change.
+  void ReportFrameNameChange(const std::string& name);
+
+  // Called after the load handler is called in the guest's main frame.
+  void LoadHandlerCalled();
+
+  // Called when a redirect notification occurs.
+  void LoadRedirect(const GURL& old_url,
+                    const GURL& new_url,
+                    bool is_top_level);
+
+  void PushWebViewStateToIOThread();
+  static void RemoveWebViewStateFromIOThread(
+      content::WebContents* web_contents);
+
+  void LoadURLWithParams(const GURL& url,
+                         const content::Referrer& referrer,
+                         content::PageTransition transition_type,
+                         content::WebContents* web_contents);
+
+  void RequestNewWindowPermission(
+      WindowOpenDisposition disposition,
+      const gfx::Rect& initial_bounds,
+      bool user_gesture,
+      content::WebContents* new_contents);
+
+  // Destroy unattached new windows that have been opened by this
+  // WebViewGuest.
+  void DestroyUnattachedWindows();
+
+  // Requests resolution of a potentially relative URL.
+  GURL ResolveURL(const std::string& src);
+
+  // Notification that a load in the guest resulted in abort. Note that |url|
+  // may be invalid.
+  void LoadAbort(bool is_top_level,
+                 const GURL& url,
+                 const std::string& error_type);
+
+  void OnFrameNameChanged(bool is_top_level, const std::string& name);
+
+  // Creates a new guest window owned by this WebViewGuest.
+  void CreateNewGuestWebViewWindow(const content::OpenURLParams& params);
+
+  void NewGuestWebViewCallback(const content::OpenURLParams& params,
+                               content::WebContents* guest_web_contents);
+
+  bool HandleKeyboardShortcuts(const content::NativeWebKeyboardEvent& event);
+
+  void SetUpAutoSize();
+
+  ObserverList<ScriptExecutionObserver> script_observers_;
+  scoped_ptr<ScriptExecutor> script_executor_;
+
+  content::NotificationRegistrar notification_registrar_;
+
+  // True if the user agent is overridden.
+  bool is_overriding_user_agent_;
+
+  // Stores the window name of the main frame of the guest.
+  std::string name_;
+
+  // Handles find requests and replies for the webview find API.
+  WebViewFindHelper find_helper_;
+
+  // Handles the JavaScript dialog requests.
+  JavaScriptDialogHelper javascript_dialog_helper_;
+
+  // Handels permission requests.
+  scoped_ptr<WebViewPermissionHelper> web_view_permission_helper_;
+
+  scoped_ptr<WebViewGuestDelegate> web_view_guest_delegate_;
+
+  friend void WebViewFindHelper::DispatchFindUpdateEvent(bool canceled,
+                                                         bool final_update);
+
+  // Tracks the name, and target URL of the new window. Once the first
+  // navigation commits, we no longer track this information.
+  struct NewWindowInfo {
+    GURL url;
+    std::string name;
+    bool changed;
+    NewWindowInfo(const GURL& url, const std::string& name) :
+        url(url),
+        name(name),
+        changed(false) {}
+  };
+
+  typedef std::map<WebViewGuest*, NewWindowInfo> PendingWindowMap;
+  PendingWindowMap pending_new_windows_;
+
+  DISALLOW_COPY_AND_ASSIGN(WebViewGuest);
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_GUEST_VIEW_WEB_VIEW_WEB_VIEW_GUEST_H_