Fix for Multipage selection by dragging mouse in OOP case in PDF.

pdf/out_of_process_instance.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 "pdf/out_of_process_instance.h"
 
 #include <algorithm>  // for min/max()
 #define _USE_MATH_DEFINES  // for M_PI
 #include <cmath>      // for log() and pow()
 #include <math.h>
@@ skipping 122 matching lines @@
 // Get the selected text in the document (Page -> Plugin)
 const char kJSGetSelectedTextType[] = "getSelectedText";
 // Reply with selected text (Plugin -> Page)
 const char kJSGetSelectedTextReplyType[] = "getSelectedTextReply";
 const char kJSSelectedText[] = "selectedText";
 
 // List of named destinations (Plugin -> Page)
 const char kJSSetNamedDestinationsType[] = "setNamedDestinations";
 const char kJSNamedDestinations[] = "namedDestinations";
 
+// Selecting text in document (Plugin -> Page)
+const char kJSSetIsSelectingType[] = "setIsSelecting";
+const char kJSIsSelecting[] = "isSelecting";
+
 const int kFindResultCooldownMs = 100;
 
 const double kMinZoom = 0.01;
 
 namespace {
 
 static const char kPPPPdfInterface[] = PPP_PDF_INTERFACE_1;
 
 PP_Var GetLinkAtPosition(PP_Instance instance, PP_Point point) {
   pp::Var var;
@@ skipping 1174 matching lines @@
     return;
   engine_->AppendBlankPages(print_preview_page_count_);
   if (preview_pages_info_.size() > 0)
     LoadAvailablePreviewPage();
 }
 
 bool OutOfProcessInstance::IsPrintPreview() {
   return IsPrintPreviewUrl(url_);
 }
 
+void OutOfProcessInstance::IsSelectingChanged(bool is_selecting) {
+  pp::VarDictionary message;
+  message.Set(kType, kJSSetIsSelectingType);
+  message.Set(kJSIsSelecting, pp::Var(is_selecting));
+  PostMessage(message);
+}
+
 void OutOfProcessInstance::ProcessPreviewPageInfo(const std::string& url,
                                                   int dst_page_index) {
   if (!IsPrintPreview())
     return;
 
   int src_page_index = ExtractPrintPreviewPageIndex(url);
   if (src_page_index < 1)
     return;
 
   preview_pages_info_.push(std::make_pair(url, dst_page_index));
@@ skipping 28 matching lines @@
 pp::FloatPoint OutOfProcessInstance::BoundScrollOffsetToDocument(
     const pp::FloatPoint& scroll_offset) {
   float max_x = document_size_.width() * zoom_ - plugin_dip_size_.width();
   float x = std::max(std::min(scroll_offset.x(), max_x), 0.0f);
   float max_y = document_size_.height() * zoom_ - plugin_dip_size_.height();
   float y = std::max(std::min(scroll_offset.y(), max_y), 0.0f);
   return pp::FloatPoint(x, y);
 }
 
 }  // namespace chrome_pdf