Emit object replacement char to IME

Source/core/editing/TextIterator.h

 /*
  * Copyright (C) 2004, 2006, 2009 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 27 matching lines @@
 class RenderTextFragment;
 
 enum TextIteratorBehavior {
     TextIteratorDefaultBehavior = 0,
     TextIteratorEmitsCharactersBetweenAllVisiblePositions = 1 << 0,
     TextIteratorEntersTextControls = 1 << 1,
     TextIteratorIgnoresStyleVisibility = 1 << 2,
     TextIteratorEmitsOriginalText = 1 << 3,
     TextIteratorStopsOnFormControls = 1 << 4,
     TextIteratorEmitsImageAltText = 1 << 5,
-    TextIteratorEntersAuthorShadowRoots = 1 << 6
+    TextIteratorEntersAuthorShadowRoots = 1 << 6,
+    TextIteratorEmitsReplacementChar = 1 << 7

[Yuta Kitamura, 2014/05/28 07:36:07]

EmitsReplacementChar -> EmitsObjectReplacementCharacterForImage ?

* We try to avoid abbreviation like "Char" in names;
* "Replacement character" (U+FFFD) is different from "object replacement
  character" (U+FFFC). It's probably good to clarify that here;
* It's probably worth noting that we are replacing images here.

[guohui, 2014/05/28 13:19:12]

Done.
This applies not only to images, but also to any replaced elements.

 };
 typedef unsigned TextIteratorBehaviorFlags;
 
 String plainText(const Range*, TextIteratorBehaviorFlags = TextIteratorDefaultBehavior);
 PassRefPtrWillBeRawPtr<Range> findPlainText(const Range*, const String&, FindOptions);
 void findPlainText(const Position& inputStart, const Position& inputEnd, const String&, FindOptions, Position& resultStart, Position& resultEnd);
 
 class BitStack {
 public:
     BitStack();
@@ skipping 141 matching lines @@
     // Used when the visibility of the style should not affect text gathering.
     bool m_ignoresStyleVisibility;
     // Used when the iteration should stop if form controls are reached.
     bool m_stopsOnFormControls;
     // Used when m_stopsOnFormControls is set to determine if the iterator should keep advancing.
     bool m_shouldStop;
 
     bool m_emitsImageAltText;
 
     bool m_entersAuthorShadowRoots;
+
+    bool m_emitsReplacementChar;
 };
 
 // Iterates through the DOM range, returning all the text, and 0-length boundaries
 // at points where replaced elements break up the text flow. The text comes back in
 // chunks so as to optimize for performance of the iteration.
 class SimplifiedBackwardsTextIterator {
 public:
     explicit SimplifiedBackwardsTextIterator(const Range*, TextIteratorBehaviorFlags = TextIteratorDefaultBehavior);
 
     bool atEnd() const { return !m_positionNode || m_shouldStop; }
@@ skipping 140 matching lines @@
     Vector<UChar> m_buffer;
     // Did we have to look ahead in the textIterator to confirm the current chunk?
     bool m_didLookAhead;
     RefPtrWillBeMember<Range> m_range;
     TextIterator m_textIterator;
 };
 
 }
 
 #endif