diff options
Diffstat (limited to 'Source/WebCore/dom')
-rw-r--r-- | Source/WebCore/dom/DOMTextContentWalker.cpp | 90 | ||||
-rw-r--r-- | Source/WebCore/dom/DOMTextContentWalker.h | 60 | ||||
-rw-r--r-- | Source/WebCore/dom/Document.cpp | 5 |
3 files changed, 150 insertions, 5 deletions
diff --git a/Source/WebCore/dom/DOMTextContentWalker.cpp b/Source/WebCore/dom/DOMTextContentWalker.cpp new file mode 100644 index 0000000..ccbe1ec --- /dev/null +++ b/Source/WebCore/dom/DOMTextContentWalker.cpp @@ -0,0 +1,90 @@ +/* + * Copyright (C) 2011 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: + * 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 + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "config.h" +#include "DOMTextContentWalker.h" + +#if OS(ANDROID) + +#include "Range.h" +#include "TextIterator.h" +#include "VisiblePosition.h" +#include "VisibleSelection.h" +#include "visible_units.h" + +namespace WebCore { + +static PassRefPtr<Range> getRange(const Position& start, const Position& end) +{ + return VisibleSelection(start.parentAnchoredEquivalent(), end.parentAnchoredEquivalent(), DOWNSTREAM).firstRange(); +} + +DOMTextContentWalker::DOMTextContentWalker(const VisiblePosition& position, unsigned maxLength) + : m_hitOffsetInContent(0) +{ + const unsigned halfMaxLength = maxLength / 2; + CharacterIterator forwardChar(makeRange(position, endOfDocument(position)).get(), TextIteratorStopsOnFormControls); + forwardChar.advance(maxLength - halfMaxLength); + + // No forward contents, started inside form control. + RefPtr<Range> range = getRange(position.deepEquivalent(), forwardChar.range()->startPosition()); + if (!range.get() || range->text().length() == 0) + return; + + BackwardsCharacterIterator backwardsChar(makeRange(startOfDocument(position), position).get(), TextIteratorStopsOnFormControls); + backwardsChar.advance(halfMaxLength); + + m_hitOffsetInContent = getRange(backwardsChar.range()->endPosition(), position.deepEquivalent())->text().length(); + m_contentRange = getRange(backwardsChar.range()->endPosition(), forwardChar.range()->startPosition()); +} + +PassRefPtr<Range> DOMTextContentWalker::contentOffsetsToRange(unsigned startInContent, unsigned endInContent) +{ + if (startInContent >= endInContent || endInContent > content().length()) + return 0; + + CharacterIterator iterator(m_contentRange.get()); + iterator.advance(startInContent); + + Position start = iterator.range()->startPosition(); + iterator.advance(endInContent - startInContent); + Position end = iterator.range()->startPosition(); + return getRange(start, end); +} + +String DOMTextContentWalker::content() const +{ + if (m_contentRange) + return m_contentRange->text(); + return String(); +} + +unsigned DOMTextContentWalker::hitOffsetInContent() const +{ + return m_hitOffsetInContent; +} + +} // namespace WebCore + +#endif // OS(ANDROID) diff --git a/Source/WebCore/dom/DOMTextContentWalker.h b/Source/WebCore/dom/DOMTextContentWalker.h new file mode 100644 index 0000000..0d4259b --- /dev/null +++ b/Source/WebCore/dom/DOMTextContentWalker.h @@ -0,0 +1,60 @@ +/* + * Copyright (C) 2011 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: + * 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 + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef DOMTextContentWalker_h +#define DOMTextContentWalker_h + +#if OS(ANDROID) + +#include "PlatformString.h" + +namespace WebCore { + +class Range; +class VisiblePosition; + +// Explore the DOM tree to find the text contents up to a limit +// around a position in a given text node. +class DOMTextContentWalker { + WTF_MAKE_NONCOPYABLE(DOMTextContentWalker); +public: + DOMTextContentWalker(const VisiblePosition& position, unsigned maxLength); + + String content() const; + unsigned hitOffsetInContent() const; + + // Convert start/end positions in the content text string into a text range. + PassRefPtr<Range> contentOffsetsToRange(unsigned startInContent, unsigned endInContent); + +private: + RefPtr<Range> m_contentRange; + size_t m_hitOffsetInContent; +}; + +} // namespace WebCore + +#endif // OS(ANDROID) + +#endif // DOMTextContentWalker_h + diff --git a/Source/WebCore/dom/Document.cpp b/Source/WebCore/dom/Document.cpp index 20dad55..1b5f55b 100644 --- a/Source/WebCore/dom/Document.cpp +++ b/Source/WebCore/dom/Document.cpp @@ -189,11 +189,6 @@ #include "Settings.h" #endif -#ifdef ANDROID_RESET_SELECTION -#include "CacheBuilder.h" -#include "HTMLTextAreaElement.h" -#endif - #if ENABLE(TOUCH_EVENTS) #if USE(V8) #include "RuntimeEnabledFeatures.h" |