Printing selection from context menu.

chrome/renderer/printing/print_web_view_helper.cc

 // Copyright (c) 2012 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/printing/print_web_view_helper.h"
 
 #include <string>
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
@@ skipping 1088 matching lines @@
 }
 
 void PrintWebViewHelper::SetScriptedPrintBlocked(bool blocked) {
   is_scripted_printing_blocked_ = blocked;
 }
 
 void PrintWebViewHelper::OnPrintNodeUnderContextMenu() {
   PrintNode(render_view()->GetContextMenuNode());
 }
 
-void PrintWebViewHelper::OnInitiatePrintPreview() {
+void PrintWebViewHelper::OnInitiatePrintPreview(bool selection_only) {
   DCHECK(is_preview_enabled_);
   WebKit::WebFrame* frame;
   if (GetPrintFrame(&frame)) {
     print_preview_context_.InitWithFrame(frame);
-    RequestPrintPreview(PRINT_PREVIEW_USER_INITIATED_ENTIRE_FRAME);
+    RequestPrintPreview(selection_only ?
+                        PRINT_PREVIEW_USER_INITIATED_SELECTION :
+                        PRINT_PREVIEW_USER_INITIATED_ENTIRE_FRAME);
   } else {
     // This should not happen. Let's add a CHECK here to see how often this
     // gets hit.
     // TODO(thestig) Remove this later when we have sufficient usage of this
     // code on the M19 stable channel.
     CHECK(false);
   }
 }
 
 void PrintWebViewHelper::PrintNode(const WebKit::WebNode& node) {
@@ skipping 445 matching lines @@
 
 void PrintWebViewHelper::IncrementScriptedPrintCount() {
   ++user_cancelled_scripted_print_count_;
   last_cancelled_script_print_ = base::Time::Now();
 }
 
 void PrintWebViewHelper::RequestPrintPreview(PrintPreviewRequestType type) {
   const bool is_modifiable = print_preview_context_.IsModifiable();
   const bool has_selection = print_preview_context_.HasSelection();
   old_print_pages_params_.reset();
+  PrintHostMsg_RequestPrintPreview_Params params = {0};
+  params.is_modifiable = is_modifiable;
+  params.has_selection = has_selection;
   switch (type) {
     case PRINT_PREVIEW_USER_INITIATED_ENTIRE_FRAME: {
-      Send(new PrintHostMsg_RequestPrintPreview(routing_id(), is_modifiable,
-                                                false, has_selection));
+      Send(new PrintHostMsg_RequestPrintPreview(routing_id(), params));
       break;
     }
-    case PRINT_PREVIEW_USER_INITIATED_CONTEXT_NODE: {
-      Send(new PrintHostMsg_RequestPrintPreview(routing_id(), is_modifiable,
-                                                true, has_selection));
+    case PRINT_PREVIEW_USER_INITIATED_SELECTION: {
+      DCHECK(has_selection);
+      params.selection_only = has_selection;
+      Send(new PrintHostMsg_RequestPrintPreview(routing_id(), params));
       break;
     }
     case PRINT_PREVIEW_SCRIPTED: {
       IPC::SyncMessage* msg =
           new PrintHostMsg_ScriptedPrintPreview(routing_id(), is_modifiable);
       msg->EnableMessagePumping();
       Send(msg);
       break;
     }
     default: {
@@ skipping 285 matching lines @@
 }
 
 void PrintWebViewHelper::PrintPreviewContext::ClearContext() {
   prep_frame_view_.reset();
   metafile_.reset();
   pages_to_render_.clear();
   error_ = PREVIEW_ERROR_NONE;
 }
 
 }  // namespace printing