Add Print Selection support to Chrome. This change is fairly involved since ...

chrome/renderer/render_view.cc

 // Copyright (c) 2009 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/renderer/render_view.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 321 matching lines @@
 
   // If this is developer tools renderer intercept tools messages first.
   if (devtools_client_.get() && devtools_client_->OnMessageReceived(message))
     return;
   if (devtools_agent_.get() && devtools_agent_->OnMessageReceived(message))
     return;
 
   IPC_BEGIN_MESSAGE_MAP(RenderView, message)
     IPC_MESSAGE_HANDLER(ViewMsg_CaptureThumbnail, SendThumbnail)
     IPC_MESSAGE_HANDLER(ViewMsg_PrintPages, OnPrintPages)
+    IPC_MESSAGE_HANDLER(ViewMsg_PrintingDone, OnPrintingDone)
     IPC_MESSAGE_HANDLER(ViewMsg_Navigate, OnNavigate)
     IPC_MESSAGE_HANDLER(ViewMsg_Stop, OnStop)
     IPC_MESSAGE_HANDLER(ViewMsg_LoadAlternateHTMLText, OnLoadAlternateHTMLText)
     IPC_MESSAGE_HANDLER(ViewMsg_StopFinding, OnStopFinding)
     IPC_MESSAGE_HANDLER(ViewMsg_Undo, OnUndo)
     IPC_MESSAGE_HANDLER(ViewMsg_Redo, OnRedo)
     IPC_MESSAGE_HANDLER(ViewMsg_Cut, OnCut)
     IPC_MESSAGE_HANDLER(ViewMsg_Copy, OnCopy)
     IPC_MESSAGE_HANDLER(ViewMsg_Paste, OnPaste)
     IPC_MESSAGE_HANDLER(ViewMsg_Replace, OnReplace)
@@ skipping 95 matching lines @@
 }
 
 void RenderView::OnPrintPages() {
   DCHECK(webview());
   if (webview()) {
     // The renderer own the control flow as if it was a window.print() call.
     ScriptedPrint(webview()->GetMainFrame());
   }
 }
 
+void RenderView::OnPrintingDone(int document_cookie, bool success) {
+  // Ignoring document cookie here since only one print job can be outstanding
+  // per renderer and document_cookie is 0 when printing is successful.
+  DCHECK(print_helper_.get());
+  if (print_helper_.get() != NULL) {
+    print_helper_->DidFinishPrinting(success);
+  }
+}
+
 void RenderView::CapturePageInfo(int load_id, bool preliminary_capture) {
   if (load_id != page_id_)
     return;  // this capture call is no longer relevant due to navigation
   if (load_id == last_indexed_page_id_)
     return;  // we already indexed this page
 
   if (!webview())
     return;
 
   WebFrame* main_frame = webview()->GetMainFrame();
@@ skipping 1743 matching lines @@
   // Save the updated IME status and mark the input focus has been updated.
   // The IME status is to be sent to a browser process next time when
   // the input caret is rendered.
   if (!ime_control_busy_) {
     ime_control_updated_ = true;
     ime_control_new_state_ = enabled;
   }
 }
 
 void RenderView::ScriptedPrint(WebFrame* frame) {
-  print_render_view_.reset(new PrintWebViewHelper(this));
-  print_render_view_->SyncPrint(frame);
-  print_render_view_.reset();
+  if (print_helper_.get() == NULL) {
+    print_helper_.reset(new PrintWebViewHelper(this));
+  }
+  print_helper_->SyncPrint(frame);
 }
 
 void RenderView::WebInspectorOpened(int num_resources) {
   Send(new ViewHostMsg_InspectElement_Reply(routing_id_, num_resources));
 }
 
 void RenderView::UserMetricsRecordAction(const std::wstring& action) {
   Send(new ViewHostMsg_UserMetricsRecordAction(routing_id_, action));
 }
 
@@ skipping 626 matching lines @@
       scoped_ptr<PasswordForm> password_form(
           PasswordFormDomManager::CreatePasswordForm(form));
       if (password_form.get())
         password_forms.push_back(*password_form);
     }
   }
 
   if (!password_forms.empty())
     Send(new ViewHostMsg_PasswordFormsSeen(routing_id_, password_forms));
 }