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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/EditingStyle.cpp
parent121b0cf4517156d0ac5111caf9830c51b69bae8f (diff)
downloadexternal_webkit-cad810f21b803229eb11403f9209855525a25d57.zip
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Merge WebKit at r75315: Initial merge by git.
Change-Id: I570314b346ce101c935ed22a626b48c2af266b84
Diffstat (limited to 'WebCore/editing/EditingStyle.cpp')
-rw-r--r--WebCore/editing/EditingStyle.cpp303
1 files changed, 0 insertions, 303 deletions
diff --git a/WebCore/editing/EditingStyle.cpp b/WebCore/editing/EditingStyle.cpp
deleted file mode 100644
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--- a/WebCore/editing/EditingStyle.cpp
+++ /dev/null
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-/*
- * Copyright (C) 2007, 2008, 2009 Apple Computer, Inc.
- * Copyright (C) 2010 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
- * OWNER 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 "EditingStyle.h"
-
-#include "ApplyStyleCommand.h"
-#include "CSSComputedStyleDeclaration.h"
-#include "CSSMutableStyleDeclaration.h"
-#include "CSSValueKeywords.h"
-#include "Frame.h"
-#include "RenderStyle.h"
-#include "SelectionController.h"
-
-namespace WebCore {
-
-// Editing style properties must be preserved during editing operation.
-// e.g. when a user inserts a new paragraph, all properties listed here must be copied to the new paragraph.
-// FIXME: The current editingStyleProperties contains all inheritableProperties but we may not need to preserve all inheritable properties
-static const int editingStyleProperties[] = {
- // CSS inheritable properties
- CSSPropertyBorderCollapse,
- CSSPropertyColor,
- CSSPropertyFontFamily,
- CSSPropertyFontSize,
- CSSPropertyFontStyle,
- CSSPropertyFontVariant,
- CSSPropertyFontWeight,
- CSSPropertyLetterSpacing,
- CSSPropertyLineHeight,
- CSSPropertyOrphans,
- CSSPropertyTextAlign,
- CSSPropertyTextIndent,
- CSSPropertyTextTransform,
- CSSPropertyWhiteSpace,
- CSSPropertyWidows,
- CSSPropertyWordSpacing,
- CSSPropertyWebkitBorderHorizontalSpacing,
- CSSPropertyWebkitBorderVerticalSpacing,
- CSSPropertyWebkitTextDecorationsInEffect,
- CSSPropertyWebkitTextFillColor,
- CSSPropertyWebkitTextSizeAdjust,
- CSSPropertyWebkitTextStrokeColor,
- CSSPropertyWebkitTextStrokeWidth,
-};
-size_t numEditingStyleProperties = WTF_ARRAY_LENGTH(editingStyleProperties);
-
-static PassRefPtr<CSSMutableStyleDeclaration> copyEditingProperties(CSSStyleDeclaration* style)
-{
- return style->copyPropertiesInSet(editingStyleProperties, numEditingStyleProperties);
-}
-
-static PassRefPtr<CSSMutableStyleDeclaration> editingStyleFromComputedStyle(PassRefPtr<CSSComputedStyleDeclaration> style)
-{
- if (!style)
- return CSSMutableStyleDeclaration::create();
- return copyEditingProperties(style.get());
-}
-
-EditingStyle::EditingStyle()
- : m_shouldUseFixedDefaultFontSize(false)
-{
-}
-
-EditingStyle::EditingStyle(Node* node)
- : m_shouldUseFixedDefaultFontSize(false)
-{
- init(node);
-}
-
-EditingStyle::EditingStyle(const Position& position)
- : m_shouldUseFixedDefaultFontSize(false)
-{
- init(position.node());
-}
-
-EditingStyle::EditingStyle(const CSSStyleDeclaration* style)
- : m_mutableStyle(style->copy())
- , m_shouldUseFixedDefaultFontSize(false)
-{
-}
-
-EditingStyle::~EditingStyle()
-{
-}
-
-void EditingStyle::init(Node* node)
-{
- RefPtr<CSSComputedStyleDeclaration> computedStyleAtPosition = computedStyle(node);
- m_mutableStyle = editingStyleFromComputedStyle(computedStyleAtPosition);
-
- if (node && node->computedStyle()) {
- RenderStyle* renderStyle = node->computedStyle();
- removeTextFillAndStrokeColorsIfNeeded(renderStyle);
- replaceFontSizeByKeywordIfPossible(renderStyle, computedStyleAtPosition.get());
- }
-
- m_shouldUseFixedDefaultFontSize = computedStyleAtPosition->useFixedFontDefaultSize();
-}
-
-void EditingStyle::removeTextFillAndStrokeColorsIfNeeded(RenderStyle* renderStyle)
-{
- // If a node's text fill color is invalid, then its children use
- // their font-color as their text fill color (they don't
- // inherit it). Likewise for stroke color.
- ExceptionCode ec = 0;
- if (!renderStyle->textFillColor().isValid())
- m_mutableStyle->removeProperty(CSSPropertyWebkitTextFillColor, ec);
- if (!renderStyle->textStrokeColor().isValid())
- m_mutableStyle->removeProperty(CSSPropertyWebkitTextStrokeColor, ec);
- ASSERT(!ec);
-}
-
-void EditingStyle::replaceFontSizeByKeywordIfPossible(RenderStyle* renderStyle, CSSComputedStyleDeclaration* computedStyle)
-{
- ASSERT(renderStyle);
- if (renderStyle->fontDescription().keywordSize())
- m_mutableStyle->setProperty(CSSPropertyFontSize, computedStyle->getFontSizeCSSValuePreferringKeyword()->cssText());
-}
-
-bool EditingStyle::isEmpty() const
-{
- return !m_mutableStyle || m_mutableStyle->isEmpty();
-}
-
-bool EditingStyle::textDirection(WritingDirection& writingDirection) const
-{
- RefPtr<CSSValue> unicodeBidi = m_mutableStyle->getPropertyCSSValue(CSSPropertyUnicodeBidi);
- if (!unicodeBidi)
- return false;
-
- ASSERT(unicodeBidi->isPrimitiveValue());
- int unicodeBidiValue = static_cast<CSSPrimitiveValue*>(unicodeBidi.get())->getIdent();
- if (unicodeBidiValue == CSSValueEmbed) {
- RefPtr<CSSValue> direction = m_mutableStyle->getPropertyCSSValue(CSSPropertyDirection);
- ASSERT(!direction || direction->isPrimitiveValue());
- if (!direction)
- return false;
-
- writingDirection = static_cast<CSSPrimitiveValue*>(direction.get())->getIdent() == CSSValueLtr ? LeftToRightWritingDirection : RightToLeftWritingDirection;
-
- return true;
- }
-
- if (unicodeBidiValue == CSSValueNormal) {
- writingDirection = NaturalWritingDirection;
- return true;
- }
-
- return false;
-}
-
-void EditingStyle::setStyle(PassRefPtr<CSSMutableStyleDeclaration> style)
-{
- m_mutableStyle = style;
- // FIXME: We should be able to figure out whether or not font is fixed width for mutable style.
- // We need to check font-family is monospace as in FontDescription but we don't want to duplicate code here.
- m_shouldUseFixedDefaultFontSize = false;
-}
-
-void EditingStyle::overrideWithStyle(const CSSMutableStyleDeclaration* style)
-{
- if (!style || !style->length())
- return;
- if (!m_mutableStyle)
- m_mutableStyle = CSSMutableStyleDeclaration::create();
- m_mutableStyle->merge(style);
-}
-
-void EditingStyle::clear()
-{
- m_mutableStyle.clear();
- m_shouldUseFixedDefaultFontSize = false;
-}
-
-PassRefPtr<EditingStyle> EditingStyle::copy() const
-{
- RefPtr<EditingStyle> copy = EditingStyle::create();
- if (m_mutableStyle)
- copy->m_mutableStyle = m_mutableStyle->copy();
- copy->m_shouldUseFixedDefaultFontSize = m_shouldUseFixedDefaultFontSize;
- return copy;
-}
-
-PassRefPtr<EditingStyle> EditingStyle::extractAndRemoveBlockProperties()
-{
- RefPtr<EditingStyle> blockProperties = EditingStyle::create();
- if (!m_mutableStyle)
- return blockProperties;
-
- blockProperties->m_mutableStyle = m_mutableStyle->copyBlockProperties();
- m_mutableStyle->removeBlockProperties();
-
- return blockProperties;
-}
-
-void EditingStyle::removeBlockProperties()
-{
- if (!m_mutableStyle)
- return;
-
- m_mutableStyle->removeBlockProperties();
-}
-
-void EditingStyle::removeStyleAddedByNode(Node* node)
-{
- if (!node || !node->parentNode())
- return;
- RefPtr<CSSMutableStyleDeclaration> parentStyle = editingStyleFromComputedStyle(computedStyle(node->parentNode()));
- RefPtr<CSSMutableStyleDeclaration> nodeStyle = editingStyleFromComputedStyle(computedStyle(node));
- parentStyle->diff(nodeStyle.get());
- nodeStyle->diff(m_mutableStyle.get());
-}
-
-void EditingStyle::removeStyleConflictingWithStyleOfNode(Node* node)
-{
- if (!node || !node->parentNode() || !m_mutableStyle)
- return;
- RefPtr<CSSMutableStyleDeclaration> parentStyle = editingStyleFromComputedStyle(computedStyle(node->parentNode()));
- RefPtr<CSSMutableStyleDeclaration> nodeStyle = editingStyleFromComputedStyle(computedStyle(node));
- parentStyle->diff(nodeStyle.get());
-
- CSSMutableStyleDeclaration::const_iterator end = nodeStyle->end();
- for (CSSMutableStyleDeclaration::const_iterator it = nodeStyle->begin(); it != end; ++it)
- m_mutableStyle->removeProperty(it->id());
-}
-
-void EditingStyle::removeNonEditingProperties()
-{
- if (m_mutableStyle)
- m_mutableStyle = copyEditingProperties(m_mutableStyle.get());
-}
-
-void EditingStyle::prepareToApplyAt(const Position& position, ShouldPreserveWritingDirection shouldPreserveWritingDirection)
-{
- if (!m_mutableStyle)
- return;
-
- // ReplaceSelectionCommand::handleStyleSpans() requires that this function only removes the editing style.
- // If this function was modified in the future to delete all redundant properties, then add a boolean value to indicate
- // which one of editingStyleAtPosition or computedStyle is called.
- RefPtr<EditingStyle> style = EditingStyle::create(position);
-
- RefPtr<CSSValue> unicodeBidi;
- RefPtr<CSSValue> direction;
- if (shouldPreserveWritingDirection == PreserveWritingDirection) {
- unicodeBidi = m_mutableStyle->getPropertyCSSValue(CSSPropertyUnicodeBidi);
- direction = m_mutableStyle->getPropertyCSSValue(CSSPropertyDirection);
- }
-
- style->m_mutableStyle->diff(m_mutableStyle.get());
-
- // if alpha value is zero, we don't add the background color.
- RefPtr<CSSValue> backgroundColor = m_mutableStyle->getPropertyCSSValue(CSSPropertyBackgroundColor);
- if (backgroundColor && backgroundColor->isPrimitiveValue()
- && !alphaChannel(static_cast<CSSPrimitiveValue*>(backgroundColor.get())->getRGBA32Value())) {
- ExceptionCode ec;
- m_mutableStyle->removeProperty(CSSPropertyBackgroundColor, ec);
- }
-
- if (unicodeBidi) {
- ASSERT(unicodeBidi->isPrimitiveValue());
- m_mutableStyle->setProperty(CSSPropertyUnicodeBidi, static_cast<CSSPrimitiveValue*>(unicodeBidi.get())->getIdent());
- if (direction) {
- ASSERT(direction->isPrimitiveValue());
- m_mutableStyle->setProperty(CSSPropertyDirection, static_cast<CSSPrimitiveValue*>(direction.get())->getIdent());
- }
- }
-}
-
-PassRefPtr<EditingStyle> editingStyleIncludingTypingStyle(const Position& position)
-{
- RefPtr<EditingStyle> editingStyle = EditingStyle::create(position);
- RefPtr<EditingStyle> typingStyle = position.node()->document()->frame()->selection()->typingStyle();
- if (typingStyle && typingStyle->style())
- editingStyle->style()->merge(copyEditingProperties(typingStyle->style()).get());
- return editingStyle;
-}
-
-}