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      1 /*
      2  * Copyright (C) 2008, 2009 Apple Inc. All Rights Reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #import "WebTextIterator.h"
     27 
     28 #import "DOMNodeInternal.h"
     29 #import "DOMRangeInternal.h"
     30 #import "WebTypesInternal.h"
     31 #import <JavaScriptCore/Vector.h>
     32 #import <WebCore/TextIterator.h>
     33 #import <WebCore/WebCoreObjCExtras.h>
     34 #import <runtime/InitializeThreading.h>
     35 #import <wtf/Threading.h>
     36 
     37 using namespace JSC;
     38 using namespace WebCore;
     39 
     40 @interface WebTextIteratorPrivate : NSObject {
     41 @public
     42     OwnPtr<TextIterator> _textIterator;
     43 }
     44 @end
     45 
     46 @implementation WebTextIteratorPrivate
     47 
     48 + (void)initialize
     49 {
     50     JSC::initializeThreading();
     51     WTF::initializeMainThreadToProcessMainThread();
     52 #ifndef BUILDING_ON_TIGER
     53     WebCoreObjCFinalizeOnMainThread(self);
     54 #endif
     55 }
     56 
     57 @end
     58 
     59 @implementation WebTextIterator
     60 
     61 - (void)dealloc
     62 {
     63     [_private release];
     64     [super dealloc];
     65 }
     66 
     67 - (id)initWithRange:(DOMRange *)range
     68 {
     69     self = [super init];
     70     if (!self)
     71         return self;
     72 
     73     _private = [[WebTextIteratorPrivate alloc] init];
     74     _private->_textIterator.set(new TextIterator(core(range)));
     75     return self;
     76 }
     77 
     78 - (void)advance
     79 {
     80     _private->_textIterator->advance();
     81 }
     82 
     83 - (BOOL)atEnd
     84 {
     85     return _private->_textIterator->atEnd();
     86 }
     87 
     88 - (DOMRange *)currentRange
     89 {
     90     return kit(_private->_textIterator->range().get());
     91 }
     92 
     93 - (const unichar *)currentTextPointer
     94 {
     95     return _private->_textIterator->characters();
     96 }
     97 
     98 - (NSUInteger)currentTextLength
     99 {
    100     return _private->_textIterator->length();
    101 }
    102 
    103 @end
    104 
    105 @implementation WebTextIterator (WebTextIteratorDeprecated)
    106 
    107 - (DOMNode *)currentNode
    108 {
    109     return kit(_private->_textIterator->node());
    110 }
    111 
    112 - (NSString *)currentText
    113 {
    114     return [NSString stringWithCharacters:_private->_textIterator->characters() length:_private->_textIterator->length()];
    115 }
    116 
    117 @end
    118