Extend WebSurroundingText to accept a WebRange.

Source/web/WebLocalFrameImpl.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 76 matching lines @@
 #include "core/dom/IconURL.h"
 #include "core/dom/MessagePort.h"
 #include "core/dom/Node.h"
 #include "core/dom/NodeTraversal.h"
 #include "core/dom/shadow/ShadowRoot.h"
 #include "core/editing/Editor.h"
 #include "core/editing/FrameSelection.h"
 #include "core/editing/InputMethodController.h"
 #include "core/editing/PlainTextRange.h"
 #include "core/editing/SpellChecker.h"
+#include "core/editing/SurroundingText.h"
 #include "core/editing/TextAffinity.h"
 #include "core/editing/TextIterator.h"
 #include "core/editing/htmlediting.h"
 #include "core/editing/markup.h"
 #include "core/frame/Console.h"
 #include "core/frame/DOMWindow.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/Settings.h"
 #include "core/html/HTMLCollection.h"
 #include "core/html/HTMLFormElement.h"
@@ skipping 1186 matching lines @@
     styleElement->setAttribute(HTMLNames::hrefAttr, url);
 
     frame()->document()->head()->appendChild(styleElement.release(), IGNORE_EXCEPTION);
 }
 
 void WebLocalFrameImpl::setCaretVisible(bool visible)
 {
     frame()->selection().setCaretVisible(visible);
 }
 
+WebString WebLocalFrameImpl::textSurroundingSelection(int maxLength, int* startOffset, int* endOffset) const
+{
+    ASSERT(maxLength > 0);
+
+    SurroundingText surroundingText(frame()->selection().start(), frame()->selection().end(), maxLength);
+    *startOffset = surroundingText.startOffsetInContent();
+    *endOffset = surroundingText.endOffsetInContent();
+    return surroundingText.content();
+}
+
 VisiblePosition WebLocalFrameImpl::visiblePositionForWindowPoint(const WebPoint& point)
 {
     FloatPoint unscaledPoint(point);
     unscaledPoint.scale(1 / view()->pageScaleFactor(), 1 / view()->pageScaleFactor());
 
     HitTestRequest request = HitTestRequest::Move | HitTestRequest::ReadOnly | HitTestRequest::Active | HitTestRequest::IgnoreClipping | HitTestRequest::ConfusingAndOftenMisusedDisallowShadowContent;
     HitTestResult result(frame()->view()->windowToContents(roundedIntPoint(unscaledPoint)));
     frame()->document()->renderView()->layer()->hitTest(request, result);
 
     if (Node* node = result.targetNode())
@@ skipping 599 matching lines @@
 
 void WebLocalFrameImpl::invalidateAll() const
 {
     ASSERT(frame() && frame()->view());
     FrameView* view = frame()->view();
     view->invalidateRect(view->frameRect());
     invalidateScrollbar();
 }
 
 } // namespace blink