Remove alt text from images.

sky/engine/core/editing/TextIterator.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2005 Alexey Proskuryakov.
  *
  * 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
@@ skipping 232 matching lines @@
     , m_needsAnotherNewline(false)
     , m_textBox(0)
     , m_lastTextNode(nullptr)
     , m_lastTextNodeEndedWithCollapsedSpace(false)
     , m_lastCharacter(0)
     , m_sortedTextBoxesPosition(0)
     , m_hasEmitted(false)
     , m_emitsCharactersBetweenAllVisiblePositions(behavior & TextIteratorEmitsCharactersBetweenAllVisiblePositions)
     , m_emitsOriginalText(behavior & TextIteratorEmitsOriginalText)
     , m_ignoresStyleVisibility(behavior & TextIteratorIgnoresStyleVisibility)
-    , m_emitsImageAltText(behavior & TextIteratorEmitsImageAltText)
     , m_entersAuthorShadowRoots(behavior & TextIteratorEntersAuthorShadowRoots)
     , m_emitsObjectReplacementCharacter(behavior & TextIteratorEmitsObjectReplacementCharacter)
 {
     if (range)
         initialize(range->startPosition(), range->endPosition());
 }
 
 TextIterator::TextIterator(const Position& start, const Position& end, TextIteratorBehaviorFlags behavior)
     : m_startContainer(nullptr)
     , m_startOffset(0)
     , m_endContainer(nullptr)
     , m_endOffset(0)
     , m_positionNode(nullptr)
     , m_textLength(0)
     , m_needsAnotherNewline(false)
     , m_textBox(0)
     , m_lastTextNode(nullptr)
     , m_lastTextNodeEndedWithCollapsedSpace(false)
     , m_lastCharacter(0)
     , m_sortedTextBoxesPosition(0)
     , m_hasEmitted(false)
     , m_emitsCharactersBetweenAllVisiblePositions(behavior & TextIteratorEmitsCharactersBetweenAllVisiblePositions)
     , m_emitsOriginalText(behavior & TextIteratorEmitsOriginalText)
     , m_ignoresStyleVisibility(behavior & TextIteratorIgnoresStyleVisibility)
-    , m_emitsImageAltText(behavior & TextIteratorEmitsImageAltText)
     , m_entersAuthorShadowRoots(behavior & TextIteratorEntersAuthorShadowRoots)
     , m_emitsObjectReplacementCharacter(behavior & TextIteratorEmitsObjectReplacementCharacter)
 {
     initialize(start, end);
 }
 
 void TextIterator::initialize(const Position& start, const Position& end)
 {
     ASSERT(comparePositions(start, end) <= 0);
 
@@ skipping 376 matching lines @@
         if (renderer->containsReversedText())
             ++m_sortedTextBoxesPosition;
     }
 }
 
 bool TextIterator::handleReplacedElement()
 {
     if (m_fullyClippedStack.top())
         return false;
 
-    RenderObject* renderer = m_node->renderer();
     if (m_emitsObjectReplacementCharacter) {
         emitCharacter(objectReplacementCharacter, m_node->parentNode(), m_node, 0, 1);
         return true;
     }
 
     if (m_lastTextNodeEndedWithCollapsedSpace) {
         emitCharacter(space, m_lastTextNode->parentNode(), m_lastTextNode, 1, 1);
         return false;
     }
 
     m_hasEmitted = true;
 
     if (m_emitsCharactersBetweenAllVisiblePositions) {
         // We want replaced elements to behave like punctuation for boundary
         // finding, and to simply take up space for the selection preservation
         // code in moveParagraphs, so we use a comma.
         emitCharacter(',', m_node->parentNode(), m_node, 0, 1);
         return true;
     }
 
     m_positionNode = m_node->parentNode();
     m_positionOffsetBaseNode = m_node;
     m_positionStartOffset = 0;
     m_positionEndOffset = 1;
     m_singleCharacterBuffer = 0;
-
-    if (m_emitsImageAltText && renderer->isImage() && renderer->isRenderImage()) {
-        m_text = toRenderImage(renderer)->altText();
-        if (!m_text.isEmpty()) {
-            m_textLength = m_text.length();
-            m_lastCharacter = m_text[m_textLength - 1];
-            return true;
-        }
-    }
-
     m_textLength = 0;
     m_lastCharacter = 0;
 
     return true;
 }
 
 bool TextIterator::hasVisibleTextNode(RenderText* renderer)
 {
     return true;
 }
@@ skipping 1185 matching lines @@
             resultEnd = collapseTo;
             return;
         }
     }
 
     CharacterIterator computeRangeIterator(inputStart, inputEnd, iteratorFlagsForFindPlainText);
     calculateCharacterSubrange(computeRangeIterator, matchStart, matchLength, resultStart, resultEnd);
 }
 
 }