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author | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 18:28:41 -0800 |
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committer | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 18:28:41 -0800 |
commit | 648161bb0edfc3d43db63caed5cc5213bc6cb78f (patch) | |
tree | 4b825dc642cb6eb9a060e54bf8d69288fbee4904 /WebCore/editing/VisiblePosition.h | |
parent | a65af38181ac7d34544586bdb5cd004de93897ad (diff) | |
download | external_webkit-648161bb0edfc3d43db63caed5cc5213bc6cb78f.zip external_webkit-648161bb0edfc3d43db63caed5cc5213bc6cb78f.tar.gz external_webkit-648161bb0edfc3d43db63caed5cc5213bc6cb78f.tar.bz2 |
auto import from //depot/cupcake/@135843
Diffstat (limited to 'WebCore/editing/VisiblePosition.h')
-rw-r--r-- | WebCore/editing/VisiblePosition.h | 141 |
1 files changed, 0 insertions, 141 deletions
diff --git a/WebCore/editing/VisiblePosition.h b/WebCore/editing/VisiblePosition.h deleted file mode 100644 index 79f3a57..0000000 --- a/WebCore/editing/VisiblePosition.h +++ /dev/null @@ -1,141 +0,0 @@ -/* - * Copyright (C) 2004, 2008 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 - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 COMPUTER, INC. OR - * 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 VisiblePosition_h -#define VisiblePosition_h - -#include "Node.h" -#include "Position.h" -#include "TextDirection.h" - -namespace WebCore { - -// VisiblePosition default affinity is downstream because -// the callers do not really care (they just want the -// deep position without regard to line position), and this -// is cheaper than UPSTREAM -#define VP_DEFAULT_AFFINITY DOWNSTREAM - -// Callers who do not know where on the line the position is, -// but would like UPSTREAM if at a line break or DOWNSTREAM -// otherwise, need a clear way to specify that. The -// constructors auto-correct UPSTREAM to DOWNSTREAM if the -// position is not at a line break. -#define VP_UPSTREAM_IF_POSSIBLE UPSTREAM - -class InlineBox; - -class VisiblePosition { -public: - // NOTE: UPSTREAM affinity will be used only if pos is at end of a wrapped line, - // otherwise it will be converted to DOWNSTREAM - VisiblePosition() : m_affinity(VP_DEFAULT_AFFINITY) { } - VisiblePosition(Node*, int offset, EAffinity); - VisiblePosition(const Position&, EAffinity = VP_DEFAULT_AFFINITY); - - void clear() { m_deepPosition.clear(); } - - bool isNull() const { return m_deepPosition.isNull(); } - bool isNotNull() const { return m_deepPosition.isNotNull(); } - - Position deepEquivalent() const { return m_deepPosition; } - EAffinity affinity() const { ASSERT(m_affinity == UPSTREAM || m_affinity == DOWNSTREAM); return m_affinity; } - void setAffinity(EAffinity affinity) { m_affinity = affinity; } - - // next() and previous() will increment/decrement by a character cluster. - VisiblePosition next(bool stayInEditableContent = false) const; - VisiblePosition previous(bool stayInEditableContent = false) const; - VisiblePosition honorEditableBoundaryAtOrBefore(const VisiblePosition&) const; - VisiblePosition honorEditableBoundaryAtOrAfter(const VisiblePosition&) const; - - VisiblePosition left(bool stayInEditableContent = false) const; - VisiblePosition right(bool stayInEditableContent = false) const; - - UChar characterAfter() const; - UChar characterBefore() const { return previous().characterAfter(); } - - void debugPosition(const char* msg = "") const; - - Element* rootEditableElement() const { return m_deepPosition.isNotNull() ? m_deepPosition.node()->rootEditableElement() : 0; } - - void getInlineBoxAndOffset(InlineBox*& inlineBox, int& caretOffset) const - { - m_deepPosition.getInlineBoxAndOffset(m_affinity, inlineBox, caretOffset); - } - - void getInlineBoxAndOffset(TextDirection primaryDirection, InlineBox*& inlineBox, int& caretOffset) const - { - m_deepPosition.getInlineBoxAndOffset(m_affinity, primaryDirection, inlineBox, caretOffset); - } - - IntRect caretRect() const; - -#ifndef NDEBUG - void formatForDebugger(char* buffer, unsigned length) const; - void showTreeForThis() const; -#endif - -private: - void init(const Position&, EAffinity); - Position canonicalPosition(const Position&); - - Position leftVisuallyDistinctCandidate() const; - Position rightVisuallyDistinctCandidate() const; - - Position m_deepPosition; - EAffinity m_affinity; -}; - -// FIXME: This shouldn't ignore affinity. -inline bool operator==(const VisiblePosition& a, const VisiblePosition& b) -{ - return a.deepEquivalent() == b.deepEquivalent(); -} - -inline bool operator!=(const VisiblePosition& a, const VisiblePosition& b) -{ - return !(a == b); -} - -PassRefPtr<Range> makeRange(const VisiblePosition&, const VisiblePosition&); -bool setStart(Range*, const VisiblePosition&); -bool setEnd(Range*, const VisiblePosition&); -VisiblePosition startVisiblePosition(const Range*, EAffinity); -VisiblePosition endVisiblePosition(const Range*, EAffinity); - -Node *enclosingBlockFlowElement(const VisiblePosition&); - -bool isFirstVisiblePositionInNode(const VisiblePosition&, const Node*); -bool isLastVisiblePositionInNode(const VisiblePosition&, const Node*); - -} // namespace WebCore - -#ifndef NDEBUG -// Outside the WebCore namespace for ease of invocation from gdb. -void showTree(const WebCore::VisiblePosition*); -void showTree(const WebCore::VisiblePosition&); -#endif - -#endif // VisiblePosition_h |