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authorSteve Block <steveblock@google.com>2011-05-06 11:45:16 +0100
committerSteve Block <steveblock@google.com>2011-05-12 13:44:10 +0100
commitcad810f21b803229eb11403f9209855525a25d57 (patch)
tree29a6fd0279be608e0fe9ffe9841f722f0f4e4269 /WebCore/editing/InsertLineBreakCommand.cpp
parent121b0cf4517156d0ac5111caf9830c51b69bae8f (diff)
downloadexternal_webkit-cad810f21b803229eb11403f9209855525a25d57.zip
external_webkit-cad810f21b803229eb11403f9209855525a25d57.tar.gz
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Merge WebKit at r75315: Initial merge by git.
Change-Id: I570314b346ce101c935ed22a626b48c2af266b84
Diffstat (limited to 'WebCore/editing/InsertLineBreakCommand.cpp')
-rw-r--r--WebCore/editing/InsertLineBreakCommand.cpp188
1 files changed, 0 insertions, 188 deletions
diff --git a/WebCore/editing/InsertLineBreakCommand.cpp b/WebCore/editing/InsertLineBreakCommand.cpp
deleted file mode 100644
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--- a/WebCore/editing/InsertLineBreakCommand.cpp
+++ /dev/null
@@ -1,188 +0,0 @@
-/*
- * Copyright (C) 2005, 2006 Apple Computer, 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.
- */
-
-#include "config.h"
-#include "InsertLineBreakCommand.h"
-
-#include "CSSMutableStyleDeclaration.h"
-#include "Document.h"
-#include "Frame.h"
-#include "HTMLElement.h"
-#include "HTMLNames.h"
-#include "Range.h"
-#include "RenderObject.h"
-#include "Text.h"
-#include "VisiblePosition.h"
-#include "htmlediting.h"
-#include "visible_units.h"
-
-namespace WebCore {
-
-using namespace HTMLNames;
-
-InsertLineBreakCommand::InsertLineBreakCommand(Document* document)
- : CompositeEditCommand(document)
-{
-}
-
-bool InsertLineBreakCommand::preservesTypingStyle() const
-{
- return true;
-}
-
-void InsertLineBreakCommand::insertNodeAfterPosition(Node* node, const Position& pos)
-{
- // Insert the BR after the caret position. In the case the
- // position is a block, do an append. We don't want to insert
- // the BR *after* the block.
- Element* cb = pos.node()->enclosingBlockFlowElement();
- if (cb == pos.node())
- appendNode(node, cb);
- else
- insertNodeAfter(node, pos.node());
-}
-
-void InsertLineBreakCommand::insertNodeBeforePosition(Node* node, const Position& pos)
-{
- // Insert the BR after the caret position. In the case the
- // position is a block, do an append. We don't want to insert
- // the BR *before* the block.
- Element* cb = pos.node()->enclosingBlockFlowElement();
- if (cb == pos.node())
- appendNode(node, cb);
- else
- insertNodeBefore(node, pos.node());
-}
-
-// Whether we should insert a break element or a '\n'.
-bool InsertLineBreakCommand::shouldUseBreakElement(const Position& insertionPos)
-{
- // An editing position like [input, 0] actually refers to the position before
- // the input element, and in that case we need to check the input element's
- // parent's renderer.
- Position p(rangeCompliantEquivalent(insertionPos));
- return p.node()->renderer() && !p.node()->renderer()->style()->preserveNewline();
-}
-
-void InsertLineBreakCommand::doApply()
-{
- deleteSelection();
- VisibleSelection selection = endingSelection();
- if (!selection.isNonOrphanedCaretOrRange())
- return;
-
- VisiblePosition caret(selection.visibleStart());
- // FIXME: If the node is hidden, we should still be able to insert text.
- // For now, we return to avoid a crash. https://bugs.webkit.org/show_bug.cgi?id=40342
- if (caret.isNull())
- return;
-
- Position pos(caret.deepEquivalent());
-
- pos = positionAvoidingSpecialElementBoundary(pos);
-
- pos = positionOutsideTabSpan(pos);
-
- RefPtr<Node> nodeToInsert;
- if (shouldUseBreakElement(pos))
- nodeToInsert = createBreakElement(document());
- else
- nodeToInsert = document()->createTextNode("\n");
-
- // FIXME: Need to merge text nodes when inserting just after or before text.
-
- if (isEndOfParagraph(caret) && !lineBreakExistsAtVisiblePosition(caret)) {
- bool needExtraLineBreak = !pos.node()->hasTagName(hrTag) && !pos.node()->hasTagName(tableTag);
-
- insertNodeAt(nodeToInsert.get(), pos);
-
- if (needExtraLineBreak)
- insertNodeBefore(nodeToInsert->cloneNode(false), nodeToInsert);
-
- VisiblePosition endingPosition(Position(nodeToInsert.get(), 0));
- setEndingSelection(VisibleSelection(endingPosition));
- } else if (pos.deprecatedEditingOffset() <= caretMinOffset(pos.node())) {
- insertNodeAt(nodeToInsert.get(), pos);
-
- // Insert an extra br or '\n' if the just inserted one collapsed.
- if (!isStartOfParagraph(VisiblePosition(Position(nodeToInsert.get(), 0))))
- insertNodeBefore(nodeToInsert->cloneNode(false).get(), nodeToInsert.get());
-
- setEndingSelection(VisibleSelection(positionInParentAfterNode(nodeToInsert.get()), DOWNSTREAM));
- // If we're inserting after all of the rendered text in a text node, or into a non-text node,
- // a simple insertion is sufficient.
- } else if (pos.deprecatedEditingOffset() >= caretMaxOffset(pos.node()) || !pos.node()->isTextNode()) {
- insertNodeAt(nodeToInsert.get(), pos);
- setEndingSelection(VisibleSelection(positionInParentAfterNode(nodeToInsert.get()), DOWNSTREAM));
- } else if (pos.node()->isTextNode()) {
- // Split a text node
- Text* textNode = static_cast<Text*>(pos.node());
- splitTextNode(textNode, pos.deprecatedEditingOffset());
- insertNodeBefore(nodeToInsert, textNode);
- Position endingPosition = Position(textNode, 0);
-
- // Handle whitespace that occurs after the split
- updateLayout();
- if (!endingPosition.isRenderedCharacter()) {
- Position positionBeforeTextNode(positionInParentBeforeNode(textNode));
- // Clear out all whitespace and insert one non-breaking space
- deleteInsignificantTextDownstream(endingPosition);
- ASSERT(!textNode->renderer() || textNode->renderer()->style()->collapseWhiteSpace());
- // Deleting insignificant whitespace will remove textNode if it contains nothing but insignificant whitespace.
- if (textNode->inDocument())
- insertTextIntoNode(textNode, 0, nonBreakingSpaceString());
- else {
- RefPtr<Text> nbspNode = document()->createTextNode(nonBreakingSpaceString());
- insertNodeAt(nbspNode.get(), positionBeforeTextNode);
- endingPosition = Position(nbspNode.get(), 0);
- }
- }
-
- setEndingSelection(VisibleSelection(endingPosition, DOWNSTREAM));
- }
-
- // Handle the case where there is a typing style.
-
- RefPtr<EditingStyle> typingStyle = document()->frame()->selection()->typingStyle();
-
- if (typingStyle && !typingStyle->isEmpty()) {
- // Apply the typing style to the inserted line break, so that if the selection
- // leaves and then comes back, new input will have the right style.
- // FIXME: We shouldn't always apply the typing style to the line break here,
- // see <rdar://problem/5794462>.
- applyStyle(typingStyle.get(), firstDeepEditingPositionForNode(nodeToInsert.get()), lastDeepEditingPositionForNode(nodeToInsert.get()));
- // Even though this applyStyle operates on a Range, it still sets an endingSelection().
- // It tries to set a VisibleSelection around the content it operated on. So, that VisibleSelection
- // will either (a) select the line break we inserted, or it will (b) be a caret just
- // before the line break (if the line break is at the end of a block it isn't selectable).
- // So, this next call sets the endingSelection() to a caret just after the line break
- // that we inserted, or just before it if it's at the end of a block.
- setEndingSelection(endingSelection().visibleEnd());
- }
-
- rebalanceWhitespace();
-}
-
-}