Printing: Add a basic printing mode without print preview and cloud print.

chrome/browser/printing/print_view_manager_base.h

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright (c) 2013 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_PRINTING_PRINT_VIEW_MANAGER_H_
-#define CHROME_BROWSER_PRINTING_PRINT_VIEW_MANAGER_H_
+#ifndef CHROME_BROWSER_PRINTING_PRINT_VIEW_MANAGER_BASE_H_
+#define CHROME_BROWSER_PRINTING_PRINT_VIEW_MANAGER_BASE_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/prefs/pref_member.h"
 #include "base/strings/string16.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "content/public/browser/web_contents_user_data.h"
 #include "printing/printed_pages_source.h"
 
 struct PrintHostMsg_DidPrintPage_Params;
 
 namespace content {
-class RenderProcessHost;
 class RenderViewHost;
 }
 
 namespace printing {
 
 class JobEventDetails;
 class PrintJob;
 class PrintJobWorkerOwner;
-class PrintViewManagerObserver;
 
-// Manages the print commands for a WebContents.
-class PrintViewManager : public content::NotificationObserver,
-                         public PrintedPagesSource,
-                         public content::WebContentsObserver,
-                         public content::WebContentsUserData<PrintViewManager> {
+// Base class for managing the print commands for a WebContents.
+class PrintViewManagerBase : public content::NotificationObserver,
+                             public PrintedPagesSource,
+                             public content::WebContentsObserver {
  public:
-  virtual ~PrintViewManager();
+  virtual ~PrintViewManagerBase();
 
   // Prints the current document immediately. Since the rendering is
   // asynchronous, the actual printing will not be completed on the return of
   // this function. Returns false if printing is impossible at the moment.
-  bool PrintNow();
-
-  // Same as PrintNow(), but for the case where a user prints with the system
-  // dialog from print preview.
-  bool PrintForSystemDialogNow();
-
-  // Same as PrintNow(), but for the case where a user press "ctrl+shift+p" to
-  // show the native system dialog. This can happen from both initiator and
-  // preview dialog.
-  bool AdvancedPrintNow();
-
-  // Same as PrintNow(), but for the case where we want to send the result to
-  // another destination.
-  // TODO(mad) Add an argument so we can pass the destination interface.
-  bool PrintToDestination();
-
-  // Initiate print preview of the current document by first notifying the
-  // renderer. Since this happens asynchronous, the print preview dialog
-  // creation will not be completed on the return of this function. Returns
-  // false if print preview is impossible at the moment.
-  bool PrintPreviewNow(bool selection_only);
-
-  // Notify PrintViewManager that print preview is starting in the renderer for
-  // a particular WebNode.
-  void PrintPreviewForWebNode();
-
-  // Notify PrintViewManager that print preview has finished. Unfreeze the
-  // renderer in the case of scripted print preview.
-  void PrintPreviewDone();
+  virtual bool PrintNow();
 
   // Whether to block scripted printing for our tab or not.
   void UpdateScriptedPrintingBlocked();
 
-  // Sets |observer| as the current PrintViewManagerObserver. Pass in NULL to
-  // remove the current observer. |observer| may always be NULL, but |observer_|
-  // must be NULL if |observer| is non-NULL.
-  void set_observer(PrintViewManagerObserver* observer);
-
   // PrintedPagesSource implementation.
   virtual string16 RenderSourceName() OVERRIDE;
 
+ protected:
+  explicit PrintViewManagerBase(content::WebContents* web_contents);
+
+  // Helper method for Print*Now().
+  bool PrintNowInternal(IPC::Message* message);
+
+  // Terminates or cancels the print job if one was pending.
+  virtual void RenderProcessGone(base::TerminationStatus status) OVERRIDE;
+
+  // content::WebContentsObserver implementation.
+  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
+
+ private:
   // content::NotificationObserver implementation.
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
   // content::WebContentsObserver implementation.
   virtual void DidStartLoading(
       content::RenderViewHost* render_view_host) OVERRIDE;
 
-  // content::WebContentsObserver implementation.
-  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
-
-  // Terminates or cancels the print job if one was pending.
-  virtual void RenderProcessGone(base::TerminationStatus status) OVERRIDE;
-
   // Cancels the print job.
   virtual void StopNavigation() OVERRIDE;
 
- private:
-  explicit PrintViewManager(content::WebContents* web_contents);
-  friend class content::WebContentsUserData<PrintViewManager>;
-
-  enum PrintPreviewState {
-    NOT_PREVIEWING,
-    USER_INITIATED_PREVIEW,
-    SCRIPTED_PREVIEW,
-  };
-
   // IPC Message handlers.
   void OnDidGetPrintedPagesCount(int cookie, int number_pages);
   void OnDidGetDocumentCookie(int cookie);
-  void OnDidShowPrintDialog();
   void OnDidPrintPage(const PrintHostMsg_DidPrintPage_Params& params);
   void OnPrintingFailed(int cookie);
 
-  void OnScriptedPrintPreview(bool source_is_modifiable,
-                              IPC::Message* reply_msg);
-  void OnScriptedPrintPreviewReply(IPC::Message* reply_msg);
-
   // Processes a NOTIFY_PRINT_JOB_EVENT notification.
   void OnNotifyPrintJobEvent(const JobEventDetails& event_details);
 
   // Requests the RenderView to render all the missing pages for the print job.
   // No-op if no print job is pending. Returns true if at least one page has
   // been requested to the renderer.
   bool RenderAllMissingPagesNow();
 
   // Quits the current message loop if these conditions hold true: a document is
   // loaded and is complete and waiting_for_pages_to_be_rendered_ is true. This
@@ skipping 28 matching lines @@
   // while the blocking inner message loop is running. This is useful in cases
   // where the RenderView is about to be destroyed while a printing job isn't
   // finished.
   bool RunInnerMessageLoop();
 
   // In the case of Scripted Printing, where the renderer is controlling the
   // control flow, print_job_ is initialized whenever possible. No-op is
   // print_job_ is initialized.
   bool OpportunisticallyCreatePrintJob(int cookie);
 
-  // Helper method for Print*Now().
-  bool PrintNowInternal(IPC::Message* message);
-
   // Release the PrinterQuery associated with our |cookie_|.
   void ReleasePrinterQuery();
 
   content::NotificationRegistrar registrar_;
 
   // Manages the low-level talk to the printer.
   scoped_refptr<PrintJob> print_job_;
 
   // Number of pages to print in the print job.
   int number_pages_;
 
   // Indication of success of the print job.
   bool printing_succeeded_;
 
   // Running an inner message loop inside RenderAllMissingPagesNow(). This means
   // we are _blocking_ until all the necessary pages have been rendered or the
   // print settings are being loaded.
   bool inside_inner_message_loop_;
 
 #if defined(OS_POSIX) && !defined(OS_MACOSX)
   // Set to true when OnDidPrintPage() should be expecting the first page.
   bool expecting_first_page_;
 #endif
 
-  // Weak pointer to an observer that is notified when the print dialog is
-  // shown.
-  PrintViewManagerObserver* observer_;
-
   // The document cookie of the current PrinterQuery.
   int cookie_;
 
-  // Current state of print preview for this view.
-  PrintPreviewState print_preview_state_;
-
-  // Keeps track of the pending callback during scripted print preview.
-  content::RenderProcessHost* scripted_print_preview_rph_;
-
   // Whether printing is enabled.
   BooleanPrefMember printing_enabled_;
 
   // Whether our content is in blocked state.
   bool tab_content_blocked_;
 
-  DISALLOW_COPY_AND_ASSIGN(PrintViewManager);
+  DISALLOW_COPY_AND_ASSIGN(PrintViewManagerBase);
 };
 
 }  // namespace printing
 
-#endif  // CHROME_BROWSER_PRINTING_PRINT_VIEW_MANAGER_H_
+#endif  // CHROME_BROWSER_PRINTING_PRINT_VIEW_MANAGER_BASE_H_