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| 1 /* | |
| 2 * Copyright (C) 2013 Google, 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 GOOGLE 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 GOOGLE 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 #ifndef BackgroundHTMLInputStream_h | |
| 27 #define BackgroundHTMLInputStream_h | |
| 28 | |
| 29 #include "platform/text/SegmentedString.h" | |
| 30 #include "wtf/Vector.h" | |
| 31 #include "wtf/text/WTFString.h" | |
| 32 | |
| 33 namespace blink { | |
| 34 | |
| 35 typedef size_t HTMLInputCheckpoint; | |
| 36 | |
| 37 class BackgroundHTMLInputStream { | |
| 38 WTF_MAKE_NONCOPYABLE(BackgroundHTMLInputStream); | |
| 39 public: | |
| 40 BackgroundHTMLInputStream(); | |
| 41 | |
| 42 void append(const String&); | |
| 43 void close(); | |
| 44 | |
| 45 SegmentedString& current() { return m_current; } | |
| 46 | |
| 47 // An HTMLInputCheckpoint is valid until the next call to rewindTo, at which | |
| 48 // point all outstanding checkpoints are invalidated. | |
| 49 HTMLInputCheckpoint createCheckpoint(size_t tokensExtractedSincePreviousChec
kpoint); | |
| 50 void invalidateCheckpointsBefore(HTMLInputCheckpoint); | |
| 51 | |
| 52 size_t totalCheckpointTokenCount() const { return m_totalCheckpointTokenCoun
t; } | |
| 53 | |
| 54 private: | |
| 55 struct Checkpoint { | |
| 56 Checkpoint(size_t n, size_t t) : numberOfSegmentsAlreadyAppended(n), tok
ensExtractedSincePreviousCheckpoint(t) { } | |
| 57 | |
| 58 size_t numberOfSegmentsAlreadyAppended; | |
| 59 size_t tokensExtractedSincePreviousCheckpoint; | |
| 60 | |
| 61 void clear() { numberOfSegmentsAlreadyAppended = 0; tokensExtractedSince
PreviousCheckpoint = 0;} | |
| 62 }; | |
| 63 | |
| 64 SegmentedString m_current; | |
| 65 Vector<String> m_segments; | |
| 66 Vector<Checkpoint> m_checkpoints; | |
| 67 | |
| 68 // Note: These indicies may === vector.size(), in which case there are no va
lid checkpoints/segments at this time. | |
| 69 size_t m_firstValidCheckpointIndex; | |
| 70 size_t m_firstValidSegmentIndex; | |
| 71 size_t m_totalCheckpointTokenCount; | |
| 72 | |
| 73 void updateTotalCheckpointTokenCount(); | |
| 74 }; | |
| 75 | |
| 76 } | |
| 77 | |
| 78 #endif | |
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Chromium Code Reviews
Issue 676763003:
Remove BackgroundHTMLInputStream (Closed)
Base URL: https://github.com/domokit/mojo.git@master