551 lines
19 KiB
C++
551 lines
19 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Daniel Glazman <glazman@netscape.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nscore.h"
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#include "nsCOMPtr.h"
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#include "nsIDOMHTMLBodyElement.h"
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#include "nsIDOMEventReceiver.h"
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#include "nsGenericHTMLElement.h"
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#include "nsLayoutAtoms.h"
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#include "nsStyleConsts.h"
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#include "nsPresContext.h"
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#include "nsIPresShell.h"
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#include "nsIDocument.h"
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#include "nsIHTMLDocument.h"
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#include "nsHTMLStyleSheet.h"
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#include "nsIHTMLCSSStyleSheet.h"
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#include "nsICSSStyleRule.h"
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#include "nsIContentViewer.h"
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#include "nsIMarkupDocumentViewer.h"
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#include "nsMappedAttributes.h"
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#include "nsISupportsArray.h"
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#include "nsRuleData.h"
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#include "nsIFrame.h"
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#include "nsIDocShell.h"
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#include "nsIEditorDocShell.h"
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#include "nsCOMPtr.h"
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#include "nsIView.h"
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#include "nsRuleWalker.h"
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#include "nsIViewManager.h"
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//----------------------------------------------------------------------
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class nsHTMLBodyElement;
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class BodyRule: public nsIStyleRule {
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public:
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BodyRule(nsHTMLBodyElement* aPart);
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virtual ~BodyRule();
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NS_DECL_ISUPPORTS
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// nsIStyleRule interface
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NS_IMETHOD MapRuleInfoInto(nsRuleData* aRuleData);
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#ifdef DEBUG
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NS_IMETHOD List(FILE* out = stdout, PRInt32 aIndent = 0) const;
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#endif
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nsHTMLBodyElement* mPart; // not ref-counted, cleared by content
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};
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//----------------------------------------------------------------------
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class nsHTMLBodyElement : public nsGenericHTMLElement,
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public nsIDOMHTMLBodyElement
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{
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public:
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nsHTMLBodyElement(nsINodeInfo *aNodeInfo);
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virtual ~nsHTMLBodyElement();
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// nsISupports
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NS_DECL_ISUPPORTS_INHERITED
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// nsIDOMNode
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NS_FORWARD_NSIDOMNODE(nsGenericHTMLElement::)
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// nsIDOMElement
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NS_FORWARD_NSIDOMELEMENT(nsGenericHTMLElement::)
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// nsIDOMHTMLElement
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NS_FORWARD_NSIDOMHTMLELEMENT(nsGenericHTMLElement::)
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// nsIDOMHTMLBodyElement
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NS_DECL_NSIDOMHTMLBODYELEMENT
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virtual PRBool ParseAttribute(PRInt32 aNamespaceID,
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nsIAtom* aAttribute,
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const nsAString& aValue,
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nsAttrValue& aResult);
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virtual void UnbindFromTree(PRBool aDeep = PR_TRUE,
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PRBool aNullParent = PR_TRUE);
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virtual nsMapRuleToAttributesFunc GetAttributeMappingFunction() const;
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NS_IMETHOD WalkContentStyleRules(nsRuleWalker* aRuleWalker);
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NS_IMETHOD_(PRBool) IsAttributeMapped(const nsIAtom* aAttribute) const;
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virtual already_AddRefed<nsIEditor> GetAssociatedEditor();
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virtual nsresult Clone(nsINodeInfo *aNodeInfo, nsINode **aResult) const;
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protected:
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BodyRule* mContentStyleRule;
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};
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//----------------------------------------------------------------------
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BodyRule::BodyRule(nsHTMLBodyElement* aPart)
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{
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mPart = aPart;
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}
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BodyRule::~BodyRule()
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{
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}
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NS_IMPL_ISUPPORTS1(BodyRule, nsIStyleRule)
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NS_IMETHODIMP
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BodyRule::MapRuleInfoInto(nsRuleData* aData)
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{
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if (!aData || (aData->mSID != eStyleStruct_Margin) || !aData->mMarginData || !mPart)
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return NS_OK; // We only care about margins.
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PRInt32 bodyMarginWidth = -1;
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PRInt32 bodyMarginHeight = -1;
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PRInt32 bodyTopMargin = -1;
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PRInt32 bodyBottomMargin = -1;
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PRInt32 bodyLeftMargin = -1;
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PRInt32 bodyRightMargin = -1;
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// check the mode (fortunately, the ruleData has a presContext for us to use!)
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NS_ASSERTION(aData->mPresContext, "null presContext in ruleNode was unexpected");
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nsCompatibility mode = aData->mPresContext->CompatibilityMode();
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const nsAttrValue* value;
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if (mPart->GetAttrCount() > 0) {
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// if marginwidth/marginheight are set, reflect them as 'margin'
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value = mPart->GetParsedAttr(nsGkAtoms::marginwidth);
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if (value && value->Type() == nsAttrValue::eInteger) {
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bodyMarginWidth = value->GetIntegerValue();
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if (bodyMarginWidth < 0) bodyMarginWidth = 0;
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nsCSSRect& margin = aData->mMarginData->mMargin;
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if (margin.mLeft.GetUnit() == eCSSUnit_Null)
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margin.mLeft.SetFloatValue((float)bodyMarginWidth, eCSSUnit_Pixel);
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if (margin.mRight.GetUnit() == eCSSUnit_Null)
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margin.mRight.SetFloatValue((float)bodyMarginWidth, eCSSUnit_Pixel);
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}
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value = mPart->GetParsedAttr(nsGkAtoms::marginheight);
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if (value && value->Type() == nsAttrValue::eInteger) {
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bodyMarginHeight = value->GetIntegerValue();
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if (bodyMarginHeight < 0) bodyMarginHeight = 0;
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nsCSSRect& margin = aData->mMarginData->mMargin;
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if (margin.mTop.GetUnit() == eCSSUnit_Null)
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margin.mTop.SetFloatValue((float)bodyMarginHeight, eCSSUnit_Pixel);
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if (margin.mBottom.GetUnit() == eCSSUnit_Null)
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margin.mBottom.SetFloatValue((float)bodyMarginHeight, eCSSUnit_Pixel);
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}
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if (eCompatibility_NavQuirks == mode){
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// topmargin (IE-attribute)
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value = mPart->GetParsedAttr(nsGkAtoms::topmargin);
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if (value && value->Type() == nsAttrValue::eInteger) {
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bodyTopMargin = value->GetIntegerValue();
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if (bodyTopMargin < 0) bodyTopMargin = 0;
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nsCSSRect& margin = aData->mMarginData->mMargin;
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if (margin.mTop.GetUnit() == eCSSUnit_Null)
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margin.mTop.SetFloatValue((float)bodyTopMargin, eCSSUnit_Pixel);
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}
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// bottommargin (IE-attribute)
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value = mPart->GetParsedAttr(nsGkAtoms::bottommargin);
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if (value && value->Type() == nsAttrValue::eInteger) {
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bodyBottomMargin = value->GetIntegerValue();
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if (bodyBottomMargin < 0) bodyBottomMargin = 0;
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nsCSSRect& margin = aData->mMarginData->mMargin;
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if (margin.mBottom.GetUnit() == eCSSUnit_Null)
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margin.mBottom.SetFloatValue((float)bodyBottomMargin, eCSSUnit_Pixel);
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}
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// leftmargin (IE-attribute)
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value = mPart->GetParsedAttr(nsGkAtoms::leftmargin);
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if (value && value->Type() == nsAttrValue::eInteger) {
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bodyLeftMargin = value->GetIntegerValue();
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if (bodyLeftMargin < 0) bodyLeftMargin = 0;
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nsCSSRect& margin = aData->mMarginData->mMargin;
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if (margin.mLeft.GetUnit() == eCSSUnit_Null)
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margin.mLeft.SetFloatValue((float)bodyLeftMargin, eCSSUnit_Pixel);
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}
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// rightmargin (IE-attribute)
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value = mPart->GetParsedAttr(nsGkAtoms::rightmargin);
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if (value && value->Type() == nsAttrValue::eInteger) {
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bodyRightMargin = value->GetIntegerValue();
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if (bodyRightMargin < 0) bodyRightMargin = 0;
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nsCSSRect& margin = aData->mMarginData->mMargin;
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if (margin.mRight.GetUnit() == eCSSUnit_Null)
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margin.mRight.SetFloatValue((float)bodyRightMargin, eCSSUnit_Pixel);
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}
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}
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}
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// if marginwidth or marginheight is set in the <frame> and not set in the <body>
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// reflect them as margin in the <body>
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if (bodyMarginWidth == -1 || bodyMarginHeight == -1) {
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nsCOMPtr<nsISupports> container = aData->mPresContext->GetContainer();
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if (container) {
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nsCOMPtr<nsIDocShell> docShell(do_QueryInterface(container));
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if (docShell) {
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nscoord frameMarginWidth=-1; // default value
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nscoord frameMarginHeight=-1; // default value
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docShell->GetMarginWidth(&frameMarginWidth); // -1 indicates not set
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docShell->GetMarginHeight(&frameMarginHeight);
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if ((frameMarginWidth >= 0) && (bodyMarginWidth == -1)) { // set in <frame> & not in <body>
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if (eCompatibility_NavQuirks == mode) {
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if ((bodyMarginHeight == -1) && (0 > frameMarginHeight)) // nav quirk
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frameMarginHeight = 0;
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}
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}
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if ((frameMarginHeight >= 0) && (bodyMarginHeight == -1)) { // set in <frame> & not in <body>
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if (eCompatibility_NavQuirks == mode) {
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if ((bodyMarginWidth == -1) && (0 > frameMarginWidth)) // nav quirk
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frameMarginWidth = 0;
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}
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}
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if ((bodyMarginWidth == -1) && (frameMarginWidth >= 0)) {
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nsCSSRect& margin = aData->mMarginData->mMargin;
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if (margin.mLeft.GetUnit() == eCSSUnit_Null)
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margin.mLeft.SetFloatValue((float)frameMarginWidth, eCSSUnit_Pixel);
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if (margin.mRight.GetUnit() == eCSSUnit_Null)
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margin.mRight.SetFloatValue((float)frameMarginWidth, eCSSUnit_Pixel);
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}
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if ((bodyMarginHeight == -1) && (frameMarginHeight >= 0)) {
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nsCSSRect& margin = aData->mMarginData->mMargin;
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if (margin.mTop.GetUnit() == eCSSUnit_Null)
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margin.mTop.SetFloatValue((float)frameMarginHeight, eCSSUnit_Pixel);
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if (margin.mBottom.GetUnit() == eCSSUnit_Null)
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margin.mBottom.SetFloatValue((float)frameMarginHeight, eCSSUnit_Pixel);
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}
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}
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}
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}
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return NS_OK;
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}
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#ifdef DEBUG
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NS_IMETHODIMP
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BodyRule::List(FILE* out, PRInt32 aIndent) const
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{
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return NS_OK;
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}
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#endif
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//----------------------------------------------------------------------
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NS_IMPL_NS_NEW_HTML_ELEMENT(Body)
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nsHTMLBodyElement::nsHTMLBodyElement(nsINodeInfo *aNodeInfo)
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: nsGenericHTMLElement(aNodeInfo),
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mContentStyleRule(nsnull)
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{
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}
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nsHTMLBodyElement::~nsHTMLBodyElement()
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{
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if (mContentStyleRule) {
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mContentStyleRule->mPart = nsnull;
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NS_RELEASE(mContentStyleRule);
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}
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}
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NS_IMPL_ADDREF_INHERITED(nsHTMLBodyElement, nsGenericElement)
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NS_IMPL_RELEASE_INHERITED(nsHTMLBodyElement, nsGenericElement)
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// QueryInterface implementation for nsHTMLBodyElement
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NS_HTML_CONTENT_INTERFACE_MAP_BEGIN(nsHTMLBodyElement, nsGenericHTMLElement)
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NS_INTERFACE_MAP_ENTRY(nsIDOMHTMLBodyElement)
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NS_INTERFACE_MAP_ENTRY_CONTENT_CLASSINFO(HTMLBodyElement)
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NS_HTML_CONTENT_INTERFACE_MAP_END
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NS_IMPL_ELEMENT_CLONE(nsHTMLBodyElement)
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NS_IMPL_URI_ATTR(nsHTMLBodyElement, Background, background)
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#define NS_IMPL_HTMLBODY_COLOR_ATTR(attr_, func_, default_) \
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NS_IMETHODIMP \
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nsHTMLBodyElement::Get##func_(nsAString& aColor) \
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{ \
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aColor.Truncate(); \
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nsAutoString color; \
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nscolor attrColor; \
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if (!GetAttr(kNameSpaceID_None, nsGkAtoms::attr_, color)) { \
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\
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nsPresContext *presContext = GetPresContext(); \
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if (presContext) { \
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attrColor = presContext->Default##default_(); \
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NS_RGBToHex(attrColor, aColor); \
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} \
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} else if (NS_ColorNameToRGB(color, &attrColor)) { \
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NS_RGBToHex(attrColor, aColor); \
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} else { \
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aColor.Assign(color); \
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} \
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return NS_OK; \
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} \
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NS_IMETHODIMP \
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nsHTMLBodyElement::Set##func_(const nsAString& aColor) \
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{ \
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return SetAttr(kNameSpaceID_None, nsGkAtoms::attr_, aColor, \
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PR_TRUE); \
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}
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NS_IMPL_HTMLBODY_COLOR_ATTR(vlink, VLink, VisitedLinkColor)
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NS_IMPL_HTMLBODY_COLOR_ATTR(alink, ALink, ActiveLinkColor)
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NS_IMPL_HTMLBODY_COLOR_ATTR(link, Link, LinkColor)
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// XXX Should text check the body frame's style struct for color,
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// like we do for bgColor?
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NS_IMPL_HTMLBODY_COLOR_ATTR(text, Text, Color)
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NS_IMETHODIMP
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nsHTMLBodyElement::GetBgColor(nsAString& aBgColor)
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{
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aBgColor.Truncate();
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nsAutoString attr;
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nscolor bgcolor;
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// If we don't have an attribute, find the actual color used for
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// (generally from the user agent style sheet) for compatibility
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if (!GetAttr(kNameSpaceID_None, nsGkAtoms::bgcolor, attr)) {
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// Make sure the style is up-to-date, since we need it
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nsIFrame* frame = GetPrimaryFrame(Flush_Style);
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if (frame) {
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bgcolor = frame->GetStyleBackground()->mBackgroundColor;
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NS_RGBToHex(bgcolor, aBgColor);
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}
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}
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else if (NS_ColorNameToRGB(attr, &bgcolor)) {
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// If we have a color name which we can convert to an nscolor,
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// then we should use the hex value instead of the color name.
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NS_RGBToHex(bgcolor, aBgColor);
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}
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else {
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// Otherwise, just assign whatever the attribute value is.
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aBgColor.Assign(attr);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLBodyElement::SetBgColor(const nsAString& aBgColor)
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{
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return SetAttr(kNameSpaceID_None, nsGkAtoms::bgcolor, aBgColor, PR_TRUE);
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}
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PRBool
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nsHTMLBodyElement::ParseAttribute(PRInt32 aNamespaceID,
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nsIAtom* aAttribute,
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const nsAString& aValue,
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nsAttrValue& aResult)
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{
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if (aNamespaceID == kNameSpaceID_None) {
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if (aAttribute == nsGkAtoms::bgcolor ||
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aAttribute == nsGkAtoms::text ||
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aAttribute == nsGkAtoms::link ||
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aAttribute == nsGkAtoms::alink ||
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aAttribute == nsGkAtoms::vlink) {
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return aResult.ParseColor(aValue, GetOwnerDoc());
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}
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if (aAttribute == nsGkAtoms::marginwidth ||
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aAttribute == nsGkAtoms::marginheight ||
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aAttribute == nsGkAtoms::topmargin ||
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aAttribute == nsGkAtoms::bottommargin ||
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aAttribute == nsGkAtoms::leftmargin ||
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aAttribute == nsGkAtoms::rightmargin) {
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return aResult.ParseIntWithBounds(aValue, 0);
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}
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}
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return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
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aResult);
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}
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void
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nsHTMLBodyElement::UnbindFromTree(PRBool aDeep, PRBool aNullParent)
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{
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if (mContentStyleRule) {
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mContentStyleRule->mPart = nsnull;
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// destroy old style rule
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NS_RELEASE(mContentStyleRule);
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}
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nsGenericHTMLElement::UnbindFromTree(aDeep, aNullParent);
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}
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static
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void MapAttributesIntoRule(const nsMappedAttributes* aAttributes, nsRuleData* aData)
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{
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if (aData->mSID == eStyleStruct_Display) {
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// When display if first asked for, go ahead and get our colors set up.
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nsIPresShell *presShell = aData->mPresContext->GetPresShell();
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if (presShell) {
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nsIDocument *doc = presShell->GetDocument();
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if (doc) {
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nsHTMLStyleSheet* styleSheet = doc->GetAttributeStyleSheet();
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if (styleSheet) {
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const nsAttrValue* value;
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nscolor color;
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value = aAttributes->GetAttr(nsGkAtoms::link);
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if (value && value->GetColorValue(color)) {
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styleSheet->SetLinkColor(color);
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}
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value = aAttributes->GetAttr(nsGkAtoms::alink);
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if (value && value->GetColorValue(color)) {
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styleSheet->SetActiveLinkColor(color);
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}
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value = aAttributes->GetAttr(nsGkAtoms::vlink);
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if (value && value->GetColorValue(color)) {
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styleSheet->SetVisitedLinkColor(color);
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}
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}
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}
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}
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}
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if (aData->mSID == eStyleStruct_Color) {
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if (aData->mColorData->mColor.GetUnit() == eCSSUnit_Null) {
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// color: color
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nscolor color;
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const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::text);
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if (value && value->GetColorValue(color))
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aData->mColorData->mColor.SetColorValue(color);
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}
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}
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nsGenericHTMLElement::MapBackgroundAttributesInto(aAttributes, aData);
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nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aData);
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}
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nsMapRuleToAttributesFunc
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nsHTMLBodyElement::GetAttributeMappingFunction() const
|
|
{
|
|
return &MapAttributesIntoRule;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLBodyElement::WalkContentStyleRules(nsRuleWalker* aRuleWalker)
|
|
{
|
|
nsGenericHTMLElement::WalkContentStyleRules(aRuleWalker);
|
|
|
|
if (!mContentStyleRule && IsInDoc()) {
|
|
// XXXbz should this use GetOwnerDoc() or GetCurrentDoc()?
|
|
// sXBL/XBL2 issue!
|
|
mContentStyleRule = new BodyRule(this);
|
|
NS_IF_ADDREF(mContentStyleRule);
|
|
}
|
|
if (aRuleWalker && mContentStyleRule) {
|
|
aRuleWalker->Forward(mContentStyleRule);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP_(PRBool)
|
|
nsHTMLBodyElement::IsAttributeMapped(const nsIAtom* aAttribute) const
|
|
{
|
|
static const MappedAttributeEntry attributes[] = {
|
|
{ &nsGkAtoms::link },
|
|
{ &nsGkAtoms::vlink },
|
|
{ &nsGkAtoms::alink },
|
|
{ &nsGkAtoms::text },
|
|
// These aren't mapped through attribute mapping, but they are
|
|
// mapped through a style rule, so it is attribute dependent style.
|
|
// XXXldb But we don't actually replace the body rule when we have
|
|
// dynamic changes...
|
|
{ &nsGkAtoms::marginwidth },
|
|
{ &nsGkAtoms::marginheight },
|
|
{ nsnull },
|
|
};
|
|
|
|
static const MappedAttributeEntry* const map[] = {
|
|
attributes,
|
|
sCommonAttributeMap,
|
|
sBackgroundAttributeMap,
|
|
};
|
|
|
|
return FindAttributeDependence(aAttribute, map, NS_ARRAY_LENGTH(map));
|
|
}
|
|
|
|
already_AddRefed<nsIEditor>
|
|
nsHTMLBodyElement::GetAssociatedEditor()
|
|
{
|
|
nsIEditor* editor = nsnull;
|
|
if (NS_SUCCEEDED(GetEditorInternal(&editor)) && editor) {
|
|
return editor;
|
|
}
|
|
|
|
// Make sure this is the actual body of the document
|
|
if (!IsCurrentBodyElement()) {
|
|
return nsnull;
|
|
}
|
|
|
|
// For designmode, try to get document's editor
|
|
nsPresContext* presContext = GetPresContext();
|
|
if (!presContext) {
|
|
return nsnull;
|
|
}
|
|
|
|
nsCOMPtr<nsISupports> container = presContext->GetContainer();
|
|
nsCOMPtr<nsIEditorDocShell> editorDocShell = do_QueryInterface(container);
|
|
if (!editorDocShell) {
|
|
return nsnull;
|
|
}
|
|
|
|
editorDocShell->GetEditor(&editor);
|
|
return editor;
|
|
}
|