зеркало из https://github.com/mozilla/pjs.git
891 строка
26 KiB
C++
891 строка
26 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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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.org 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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*
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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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*
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* This Original Code has been modified by IBM Corporation. Modifications made by IBM
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* described herein are Copyright (c) International Business Machines Corporation, 2000.
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* Modifications to Mozilla code or documentation identified per MPL Section 3.3
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*
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* Date Modified by Description of modification
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* 04/20/2000 IBM Corp. OS/2 VisualAge build.
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*/
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/*
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* style sheet and style rule processor representing data from presentational
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* HTML attributes
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*/
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#include "nsHTMLStyleSheet.h"
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#include "nsINameSpaceManager.h"
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#include "nsIAtom.h"
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#include "nsIURL.h"
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#include "nsMappedAttributes.h"
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#include "nsILink.h"
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#include "nsIFrame.h"
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#include "nsStyleContext.h"
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#include "nsGkAtoms.h"
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#include "nsPresContext.h"
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#include "nsIEventStateManager.h"
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#include "nsIDocument.h"
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#include "nsIPresShell.h"
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#include "nsStyleConsts.h"
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#include "nsIDOMHTMLDocument.h"
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#include "nsIDOMHTMLElement.h"
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#include "nsCSSAnonBoxes.h"
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#include "nsRuleWalker.h"
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#include "nsRuleData.h"
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#include "nsContentErrors.h"
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NS_IMPL_ISUPPORTS1(nsHTMLStyleSheet::HTMLColorRule, nsIStyleRule)
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NS_IMETHODIMP
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nsHTMLStyleSheet::HTMLColorRule::MapRuleInfoInto(nsRuleData* aRuleData)
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{
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if (aRuleData->mSIDs & NS_STYLE_INHERIT_BIT(Color)) {
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if (aRuleData->mColorData->mColor.GetUnit() == eCSSUnit_Null &&
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aRuleData->mPresContext->UseDocumentColors())
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aRuleData->mColorData->mColor.SetColorValue(mColor);
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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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nsHTMLStyleSheet::HTMLColorRule::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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NS_IMPL_ISUPPORTS1(nsHTMLStyleSheet::GenericTableRule, nsIStyleRule)
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NS_IMETHODIMP
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nsHTMLStyleSheet::GenericTableRule::MapRuleInfoInto(nsRuleData* aRuleData)
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{
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// Nothing to do.
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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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nsHTMLStyleSheet::GenericTableRule::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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static void PostResolveCallback(void* aStyleStruct, nsRuleData* aRuleData)
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{
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nsStyleText* text = (nsStyleText*)aStyleStruct;
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if (text->mTextAlign == NS_STYLE_TEXT_ALIGN_DEFAULT) {
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nsStyleContext* parentContext = aRuleData->mStyleContext->GetParent();
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if (parentContext) {
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const nsStyleText* parentStyleText = parentContext->GetStyleText();
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PRUint8 parentAlign = parentStyleText->mTextAlign;
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text->mTextAlign = (NS_STYLE_TEXT_ALIGN_DEFAULT == parentAlign)
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? NS_STYLE_TEXT_ALIGN_CENTER : parentAlign;
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}
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}
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}
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NS_IMETHODIMP
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nsHTMLStyleSheet::TableTHRule::MapRuleInfoInto(nsRuleData* aRuleData)
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{
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if (aRuleData->mSIDs & NS_STYLE_INHERIT_BIT(Text)) {
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aRuleData->mCanStoreInRuleTree = PR_FALSE;
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aRuleData->mPostResolveCallback = &PostResolveCallback;
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}
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return NS_OK;
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}
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static void
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ProcessTableRulesAttribute(void* aStyleStruct,
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nsRuleData* aRuleData,
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PRUint8 aSide,
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PRBool aGroup,
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PRUint8 aRulesArg1,
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PRUint8 aRulesArg2,
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PRUint8 aRulesArg3)
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{
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if (!aStyleStruct || !aRuleData || !aRuleData->mPresContext) return;
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nsStyleContext* tableContext = aRuleData->mStyleContext->GetParent();
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if (!tableContext)
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return;
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if (!aGroup) {
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tableContext = tableContext->GetParent();
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if (!tableContext)
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return;
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}
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const nsStyleTable* tableData = tableContext->GetStyleTable();
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if (aRulesArg1 == tableData->mRules ||
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aRulesArg2 == tableData->mRules ||
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aRulesArg3 == tableData->mRules) {
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const nsStyleBorder* tableBorderData = tableContext->GetStyleBorder();
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PRUint8 tableBorderStyle = tableBorderData->GetBorderStyle(aSide);
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nsStyleBorder* borderData = (nsStyleBorder*)aStyleStruct;
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if (!borderData)
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return;
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PRUint8 borderStyle = borderData->GetBorderStyle(aSide);
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// XXX It appears that the style system erronously applies the custom style rule after css style,
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// consequently it does not properly fit into the casade. For now, assume that a border style of none
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// implies that the style has not been set.
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// XXXldb No, there's nothing wrong with the style system. The problem
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// is that the author of all these table rules made them work as
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// post-resolve callbacks, which is an override mechanism that was meant
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// to be used for other things. They should instead map their rule data
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// normally (see nsIStyleRule.h).
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if (NS_STYLE_BORDER_STYLE_NONE == borderStyle) {
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// use the table's border style if it is dashed or dotted, otherwise use solid
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PRUint8 bStyle = ((NS_STYLE_BORDER_STYLE_NONE != tableBorderStyle) &&
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(NS_STYLE_BORDER_STYLE_HIDDEN != tableBorderStyle))
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? tableBorderStyle : NS_STYLE_BORDER_STYLE_SOLID;
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if ((NS_STYLE_BORDER_STYLE_DASHED != bStyle) &&
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(NS_STYLE_BORDER_STYLE_DOTTED != bStyle) &&
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(NS_STYLE_BORDER_STYLE_SOLID != bStyle)) {
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bStyle = NS_STYLE_BORDER_STYLE_SOLID;
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}
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bStyle |= NS_STYLE_BORDER_STYLE_RULES_MARKER;
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borderData->SetBorderStyle(aSide, bStyle);
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nscolor borderColor;
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PRBool transparent, foreground;
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borderData->GetBorderColor(aSide, borderColor, transparent, foreground);
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if (transparent || foreground) {
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// use the table's border color if it is set, otherwise use black
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nscolor tableBorderColor;
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tableBorderData->GetBorderColor(aSide, tableBorderColor, transparent, foreground);
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borderColor = (transparent || foreground) ? NS_RGB(0,0,0) : tableBorderColor;
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borderData->SetBorderColor(aSide, borderColor);
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}
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// set the border width to be 1 pixel
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borderData->SetBorderWidth(aSide, nsPresContext::CSSPixelsToAppUnits(1));
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}
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}
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}
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static void TbodyPostResolveCallback(void* aStyleStruct, nsRuleData* aRuleData)
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{
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::ProcessTableRulesAttribute(aStyleStruct, aRuleData, NS_SIDE_TOP, PR_TRUE, NS_STYLE_TABLE_RULES_ALL,
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NS_STYLE_TABLE_RULES_GROUPS, NS_STYLE_TABLE_RULES_ROWS);
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::ProcessTableRulesAttribute(aStyleStruct, aRuleData, NS_SIDE_BOTTOM, PR_TRUE, NS_STYLE_TABLE_RULES_ALL,
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NS_STYLE_TABLE_RULES_GROUPS, NS_STYLE_TABLE_RULES_ROWS);
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}
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NS_IMETHODIMP
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nsHTMLStyleSheet::TableTbodyRule::MapRuleInfoInto(nsRuleData* aRuleData)
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{
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if (aRuleData->mSIDs & NS_STYLE_INHERIT_BIT(Border)) {
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aRuleData->mCanStoreInRuleTree = PR_FALSE;
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aRuleData->mPostResolveCallback = &TbodyPostResolveCallback;
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}
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return NS_OK;
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}
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// -----------------------------------------------------------
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static void RowPostResolveCallback(void* aStyleStruct, nsRuleData* aRuleData)
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{
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::ProcessTableRulesAttribute(aStyleStruct, aRuleData, NS_SIDE_TOP, PR_FALSE, NS_STYLE_TABLE_RULES_ALL,
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NS_STYLE_TABLE_RULES_ROWS, NS_STYLE_TABLE_RULES_ROWS);
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::ProcessTableRulesAttribute(aStyleStruct, aRuleData, NS_SIDE_BOTTOM, PR_FALSE, NS_STYLE_TABLE_RULES_ALL,
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NS_STYLE_TABLE_RULES_ROWS, NS_STYLE_TABLE_RULES_ROWS);
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}
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NS_IMETHODIMP
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nsHTMLStyleSheet::TableRowRule::MapRuleInfoInto(nsRuleData* aRuleData)
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{
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if (aRuleData->mSIDs & NS_STYLE_INHERIT_BIT(Border)) {
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aRuleData->mCanStoreInRuleTree = PR_FALSE;
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aRuleData->mPostResolveCallback = &RowPostResolveCallback;
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}
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return NS_OK;
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}
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static void ColgroupPostResolveCallback(void* aStyleStruct, nsRuleData* aRuleData)
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{
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::ProcessTableRulesAttribute(aStyleStruct, aRuleData, NS_SIDE_LEFT, PR_TRUE, NS_STYLE_TABLE_RULES_ALL,
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NS_STYLE_TABLE_RULES_GROUPS, NS_STYLE_TABLE_RULES_COLS);
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::ProcessTableRulesAttribute(aStyleStruct, aRuleData, NS_SIDE_RIGHT, PR_TRUE, NS_STYLE_TABLE_RULES_ALL,
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NS_STYLE_TABLE_RULES_GROUPS, NS_STYLE_TABLE_RULES_COLS);
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}
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NS_IMETHODIMP
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nsHTMLStyleSheet::TableColgroupRule::MapRuleInfoInto(nsRuleData* aRuleData)
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{
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if (aRuleData->mSIDs & NS_STYLE_INHERIT_BIT(Border)) {
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aRuleData->mCanStoreInRuleTree = PR_FALSE;
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aRuleData->mPostResolveCallback = &ColgroupPostResolveCallback;
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}
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return NS_OK;
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}
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static void ColPostResolveCallback(void* aStyleStruct, nsRuleData* aRuleData)
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{
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::ProcessTableRulesAttribute(aStyleStruct, aRuleData, NS_SIDE_LEFT, PR_FALSE, NS_STYLE_TABLE_RULES_ALL,
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NS_STYLE_TABLE_RULES_COLS, NS_STYLE_TABLE_RULES_COLS);
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::ProcessTableRulesAttribute(aStyleStruct, aRuleData, NS_SIDE_RIGHT, PR_FALSE, NS_STYLE_TABLE_RULES_ALL,
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NS_STYLE_TABLE_RULES_COLS, NS_STYLE_TABLE_RULES_COLS);
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}
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static void UngroupedColPostResolveCallback(void* aStyleStruct,
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nsRuleData* aRuleData)
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{
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// Pass PR_TRUE for aGroup, so that we find the table's style
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// context correctly.
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::ProcessTableRulesAttribute(aStyleStruct, aRuleData, NS_SIDE_LEFT, PR_TRUE, NS_STYLE_TABLE_RULES_ALL,
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NS_STYLE_TABLE_RULES_COLS, NS_STYLE_TABLE_RULES_COLS);
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::ProcessTableRulesAttribute(aStyleStruct, aRuleData, NS_SIDE_RIGHT, PR_TRUE, NS_STYLE_TABLE_RULES_ALL,
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NS_STYLE_TABLE_RULES_COLS, NS_STYLE_TABLE_RULES_COLS);
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}
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NS_IMETHODIMP
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nsHTMLStyleSheet::TableColRule::MapRuleInfoInto(nsRuleData* aRuleData)
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{
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if (aRuleData->mSIDs & NS_STYLE_INHERIT_BIT(Border)) {
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aRuleData->mCanStoreInRuleTree = PR_FALSE;
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aRuleData->mPostResolveCallback = &ColPostResolveCallback;
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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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nsHTMLStyleSheet::TableUngroupedColRule::MapRuleInfoInto(nsRuleData* aRuleData)
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{
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if (aRuleData->mSIDs & NS_STYLE_INHERIT_BIT(Border)) {
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aRuleData->mCanStoreInRuleTree = PR_FALSE;
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aRuleData->mPostResolveCallback = &UngroupedColPostResolveCallback;
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}
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return NS_OK;
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}
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// -----------------------------------------------------------
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struct MappedAttrTableEntry : public PLDHashEntryHdr {
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nsMappedAttributes *mAttributes;
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};
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PR_STATIC_CALLBACK(PLDHashNumber)
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MappedAttrTable_HashKey(PLDHashTable *table, const void *key)
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{
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nsMappedAttributes *attributes =
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static_cast<nsMappedAttributes*>(const_cast<void*>(key));
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return attributes->HashValue();
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}
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PR_STATIC_CALLBACK(void)
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MappedAttrTable_ClearEntry(PLDHashTable *table, PLDHashEntryHdr *hdr)
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{
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MappedAttrTableEntry *entry = static_cast<MappedAttrTableEntry*>(hdr);
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entry->mAttributes->DropStyleSheetReference();
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memset(entry, 0, sizeof(MappedAttrTableEntry));
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}
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PR_STATIC_CALLBACK(PRBool)
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MappedAttrTable_MatchEntry(PLDHashTable *table, const PLDHashEntryHdr *hdr,
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const void *key)
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{
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nsMappedAttributes *attributes =
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static_cast<nsMappedAttributes*>(const_cast<void*>(key));
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const MappedAttrTableEntry *entry =
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static_cast<const MappedAttrTableEntry*>(hdr);
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return attributes->Equals(entry->mAttributes);
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}
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static PLDHashTableOps MappedAttrTable_Ops = {
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PL_DHashAllocTable,
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PL_DHashFreeTable,
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MappedAttrTable_HashKey,
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MappedAttrTable_MatchEntry,
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PL_DHashMoveEntryStub,
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MappedAttrTable_ClearEntry,
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PL_DHashFinalizeStub,
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NULL
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};
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// -----------------------------------------------------------
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nsHTMLStyleSheet::nsHTMLStyleSheet(void)
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: mURL(nsnull),
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mDocument(nsnull),
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mLinkRule(nsnull),
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mVisitedRule(nsnull),
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mActiveRule(nsnull),
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mDocumentColorRule(nsnull)
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{
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mMappedAttrTable.ops = nsnull;
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}
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nsresult
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nsHTMLStyleSheet::Init()
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{
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mTableTbodyRule = new TableTbodyRule();
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if (!mTableTbodyRule)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(mTableTbodyRule);
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mTableRowRule = new TableRowRule();
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if (!mTableRowRule)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(mTableRowRule);
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mTableColgroupRule = new TableColgroupRule();
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if (!mTableColgroupRule)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(mTableColgroupRule);
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mTableColRule = new TableColRule();
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if (!mTableColRule)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(mTableColRule);
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mTableUngroupedColRule = new TableUngroupedColRule();
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if (!mTableUngroupedColRule)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(mTableUngroupedColRule);
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mTableTHRule = new TableTHRule();
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if (!mTableTHRule)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(mTableTHRule);
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return NS_OK;
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}
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nsHTMLStyleSheet::~nsHTMLStyleSheet()
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{
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NS_IF_RELEASE(mURL);
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NS_IF_RELEASE(mLinkRule);
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NS_IF_RELEASE(mVisitedRule);
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NS_IF_RELEASE(mActiveRule);
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NS_IF_RELEASE(mDocumentColorRule);
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NS_IF_RELEASE(mTableTbodyRule);
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NS_IF_RELEASE(mTableRowRule);
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NS_IF_RELEASE(mTableColgroupRule);
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NS_IF_RELEASE(mTableColRule);
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NS_IF_RELEASE(mTableUngroupedColRule);
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NS_IF_RELEASE(mTableTHRule);
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if (mMappedAttrTable.ops)
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PL_DHashTableFinish(&mMappedAttrTable);
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}
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NS_IMPL_ISUPPORTS2(nsHTMLStyleSheet, nsIStyleSheet, nsIStyleRuleProcessor)
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static nsresult GetBodyColor(nsPresContext* aPresContext, nscolor* aColor)
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{
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nsIPresShell *shell = aPresContext->PresShell();
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nsCOMPtr<nsIDOMHTMLDocument> domdoc = do_QueryInterface(shell->GetDocument());
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if (!domdoc)
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return NS_ERROR_FAILURE;
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nsCOMPtr<nsIDOMHTMLElement> body;
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domdoc->GetBody(getter_AddRefs(body));
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nsCOMPtr<nsIContent> bodyContent = do_QueryInterface(body);
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nsIFrame *bodyFrame = shell->GetPrimaryFrameFor(bodyContent);
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if (!bodyFrame)
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return NS_ERROR_FAILURE;
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*aColor = bodyFrame->GetStyleColor()->mColor;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLStyleSheet::RulesMatching(ElementRuleProcessorData* aData)
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{
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nsIContent *content = aData->mContent;
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if (content) {
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nsRuleWalker *ruleWalker = aData->mRuleWalker;
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if (aData->mIsHTMLContent) {
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nsIAtom* tag = aData->mContentTag;
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// if we have anchor colors, check if this is an anchor with an href
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if (tag == nsGkAtoms::a) {
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if (mLinkRule || mVisitedRule || mActiveRule) {
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if (aData->mIsLink) {
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switch (aData->mLinkState) {
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case eLinkState_Unvisited:
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if (mLinkRule)
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ruleWalker->Forward(mLinkRule);
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break;
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case eLinkState_Visited:
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if (mVisitedRule)
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ruleWalker->Forward(mVisitedRule);
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break;
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default:
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break;
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}
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// No need to add to the active rule if it's not a link
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if (mActiveRule && (aData->mEventState & NS_EVENT_STATE_ACTIVE))
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ruleWalker->Forward(mActiveRule);
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}
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} // end link/visited/active rules
|
|
} // end A tag
|
|
// add the rule to handle text-align for a <th>
|
|
else if (tag == nsGkAtoms::th) {
|
|
ruleWalker->Forward(mTableTHRule);
|
|
}
|
|
else if (tag == nsGkAtoms::tr) {
|
|
ruleWalker->Forward(mTableRowRule);
|
|
}
|
|
else if ((tag == nsGkAtoms::thead) || (tag == nsGkAtoms::tbody) || (tag == nsGkAtoms::tfoot)) {
|
|
ruleWalker->Forward(mTableTbodyRule);
|
|
}
|
|
else if (tag == nsGkAtoms::col) {
|
|
nsIContent* parent = aData->mParentContent;
|
|
if (parent && parent->IsNodeOfType(nsIContent::eHTML) &&
|
|
parent->Tag() == nsGkAtoms::colgroup) {
|
|
ruleWalker->Forward(mTableColRule);
|
|
} else {
|
|
ruleWalker->Forward(mTableUngroupedColRule);
|
|
}
|
|
}
|
|
else if (tag == nsGkAtoms::colgroup) {
|
|
ruleWalker->Forward(mTableColgroupRule);
|
|
}
|
|
else if (tag == nsGkAtoms::table) {
|
|
if (aData->mCompatMode == eCompatibility_NavQuirks) {
|
|
nscolor bodyColor;
|
|
nsresult rv =
|
|
GetBodyColor(ruleWalker->GetCurrentNode()->GetPresContext(),
|
|
&bodyColor);
|
|
if (NS_SUCCEEDED(rv) &&
|
|
(!mDocumentColorRule || bodyColor != mDocumentColorRule->mColor)) {
|
|
NS_IF_RELEASE(mDocumentColorRule);
|
|
mDocumentColorRule = new HTMLColorRule();
|
|
if (mDocumentColorRule) {
|
|
NS_ADDREF(mDocumentColorRule);
|
|
mDocumentColorRule->mColor = bodyColor;
|
|
}
|
|
}
|
|
if (mDocumentColorRule)
|
|
ruleWalker->Forward(mDocumentColorRule);
|
|
}
|
|
}
|
|
} // end html element
|
|
|
|
// just get the style rules from the content
|
|
content->WalkContentStyleRules(ruleWalker);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
// Test if style is dependent on content state
|
|
NS_IMETHODIMP
|
|
nsHTMLStyleSheet::HasStateDependentStyle(StateRuleProcessorData* aData,
|
|
nsReStyleHint* aResult)
|
|
{
|
|
if (aData->mContent &&
|
|
aData->mIsHTMLContent &&
|
|
aData->mIsLink &&
|
|
aData->mContentTag == nsGkAtoms::a &&
|
|
((mActiveRule && (aData->mStateMask & NS_EVENT_STATE_ACTIVE)) ||
|
|
(mLinkRule && (aData->mStateMask & NS_EVENT_STATE_VISITED)) ||
|
|
(mVisitedRule && (aData->mStateMask & NS_EVENT_STATE_VISITED)))) {
|
|
*aResult = eReStyle_Self;
|
|
}
|
|
else
|
|
*aResult = nsReStyleHint(0);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLStyleSheet::HasAttributeDependentStyle(AttributeRuleProcessorData* aData,
|
|
nsReStyleHint* aResult)
|
|
{
|
|
// Note: no need to worry about whether some states changed with this
|
|
// attribute here, because we handle that under HasStateDependentStyle() as
|
|
// needed.
|
|
|
|
// Result is true for |href| changes on HTML links if we have link rules.
|
|
nsIContent *content = aData->mContent;
|
|
if (aData->mAttribute == nsGkAtoms::href &&
|
|
(mLinkRule || mVisitedRule || mActiveRule) &&
|
|
content &&
|
|
content->IsNodeOfType(nsINode::eHTML) &&
|
|
aData->mContentTag == nsGkAtoms::a) {
|
|
*aResult = eReStyle_Self;
|
|
return NS_OK;
|
|
}
|
|
|
|
// Don't worry about the mDocumentColorRule since it only applies
|
|
// to descendants of body, when we're already reresolving.
|
|
|
|
// Handle the content style rules.
|
|
if (content && content->IsAttributeMapped(aData->mAttribute)) {
|
|
*aResult = eReStyle_Self;
|
|
return NS_OK;
|
|
}
|
|
|
|
*aResult = nsReStyleHint(0);
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLStyleSheet::RulesMatching(PseudoRuleProcessorData* aData)
|
|
{
|
|
nsIAtom* pseudoTag = aData->mPseudoTag;
|
|
if (pseudoTag == nsCSSAnonBoxes::tableCol) {
|
|
nsRuleWalker *ruleWalker = aData->mRuleWalker;
|
|
if (ruleWalker) {
|
|
ruleWalker->Forward(mTableColRule);
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
// nsIStyleSheet api
|
|
NS_IMETHODIMP
|
|
nsHTMLStyleSheet::GetSheetURI(nsIURI** aSheetURI) const
|
|
{
|
|
*aSheetURI = mURL;
|
|
NS_IF_ADDREF(*aSheetURI);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLStyleSheet::GetBaseURI(nsIURI** aBaseURI) const
|
|
{
|
|
*aBaseURI = mURL;
|
|
NS_IF_ADDREF(*aBaseURI);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLStyleSheet::GetTitle(nsString& aTitle) const
|
|
{
|
|
aTitle.Truncate();
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLStyleSheet::GetType(nsString& aType) const
|
|
{
|
|
aType.AssignLiteral("text/html");
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP_(PRBool)
|
|
nsHTMLStyleSheet::UseForMedium(nsPresContext* aPresContext) const
|
|
{
|
|
return PR_TRUE; // works for all media
|
|
}
|
|
|
|
NS_IMETHODIMP_(PRBool)
|
|
nsHTMLStyleSheet::HasRules() const
|
|
{
|
|
return PR_TRUE; // We have rules at all reasonable times
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLStyleSheet::GetApplicable(PRBool& aApplicable) const
|
|
{
|
|
aApplicable = PR_TRUE;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLStyleSheet::SetEnabled(PRBool aEnabled)
|
|
{ // these can't be disabled
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLStyleSheet::GetComplete(PRBool& aComplete) const
|
|
{
|
|
aComplete = PR_TRUE;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLStyleSheet::SetComplete()
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLStyleSheet::GetParentSheet(nsIStyleSheet*& aParent) const
|
|
{
|
|
aParent = nsnull;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLStyleSheet::GetOwningDocument(nsIDocument*& aDocument) const
|
|
{
|
|
aDocument = mDocument;
|
|
NS_IF_ADDREF(aDocument);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLStyleSheet::SetOwningDocument(nsIDocument* aDocument)
|
|
{
|
|
mDocument = aDocument; // not refcounted
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsHTMLStyleSheet::Init(nsIURI* aURL, nsIDocument* aDocument)
|
|
{
|
|
NS_PRECONDITION(aURL && aDocument, "null ptr");
|
|
if (! aURL || ! aDocument)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
if (mURL || mDocument)
|
|
return NS_ERROR_ALREADY_INITIALIZED;
|
|
|
|
mDocument = aDocument; // not refcounted!
|
|
mURL = aURL;
|
|
NS_ADDREF(mURL);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsHTMLStyleSheet::Reset(nsIURI* aURL)
|
|
{
|
|
NS_IF_RELEASE(mURL);
|
|
mURL = aURL;
|
|
NS_ADDREF(mURL);
|
|
|
|
NS_IF_RELEASE(mLinkRule);
|
|
NS_IF_RELEASE(mVisitedRule);
|
|
NS_IF_RELEASE(mActiveRule);
|
|
NS_IF_RELEASE(mDocumentColorRule);
|
|
|
|
if (mMappedAttrTable.ops) {
|
|
PL_DHashTableFinish(&mMappedAttrTable);
|
|
mMappedAttrTable.ops = nsnull;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsHTMLStyleSheet::GetLinkColor(nscolor& aColor)
|
|
{
|
|
if (!mLinkRule) {
|
|
return NS_HTML_STYLE_PROPERTY_NOT_THERE;
|
|
}
|
|
else {
|
|
aColor = mLinkRule->mColor;
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
nsresult
|
|
nsHTMLStyleSheet::GetActiveLinkColor(nscolor& aColor)
|
|
{
|
|
if (!mActiveRule) {
|
|
return NS_HTML_STYLE_PROPERTY_NOT_THERE;
|
|
}
|
|
else {
|
|
aColor = mActiveRule->mColor;
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
nsresult
|
|
nsHTMLStyleSheet::GetVisitedLinkColor(nscolor& aColor)
|
|
{
|
|
if (!mVisitedRule) {
|
|
return NS_HTML_STYLE_PROPERTY_NOT_THERE;
|
|
}
|
|
else {
|
|
aColor = mVisitedRule->mColor;
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
nsresult
|
|
nsHTMLStyleSheet::SetLinkColor(nscolor aColor)
|
|
{
|
|
if (mLinkRule) {
|
|
if (mLinkRule->mColor == aColor)
|
|
return NS_OK;
|
|
NS_RELEASE(mLinkRule);
|
|
}
|
|
|
|
mLinkRule = new HTMLColorRule();
|
|
if (!mLinkRule)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
NS_ADDREF(mLinkRule);
|
|
|
|
mLinkRule->mColor = aColor;
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsHTMLStyleSheet::SetActiveLinkColor(nscolor aColor)
|
|
{
|
|
if (mActiveRule) {
|
|
if (mActiveRule->mColor == aColor)
|
|
return NS_OK;
|
|
NS_RELEASE(mActiveRule);
|
|
}
|
|
|
|
mActiveRule = new HTMLColorRule();
|
|
if (!mActiveRule)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
NS_ADDREF(mActiveRule);
|
|
|
|
mActiveRule->mColor = aColor;
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsHTMLStyleSheet::SetVisitedLinkColor(nscolor aColor)
|
|
{
|
|
if (mVisitedRule) {
|
|
if (mVisitedRule->mColor == aColor)
|
|
return NS_OK;
|
|
NS_RELEASE(mVisitedRule);
|
|
}
|
|
|
|
mVisitedRule = new HTMLColorRule();
|
|
if (!mVisitedRule)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
NS_ADDREF(mVisitedRule);
|
|
|
|
mVisitedRule->mColor = aColor;
|
|
return NS_OK;
|
|
}
|
|
|
|
already_AddRefed<nsMappedAttributes>
|
|
nsHTMLStyleSheet::UniqueMappedAttributes(nsMappedAttributes* aMapped)
|
|
{
|
|
if (!mMappedAttrTable.ops) {
|
|
PRBool res = PL_DHashTableInit(&mMappedAttrTable, &MappedAttrTable_Ops,
|
|
nsnull, sizeof(MappedAttrTableEntry), 16);
|
|
if (!res) {
|
|
mMappedAttrTable.ops = nsnull;
|
|
return nsnull;
|
|
}
|
|
}
|
|
MappedAttrTableEntry *entry = static_cast<MappedAttrTableEntry*>
|
|
(PL_DHashTableOperate(&mMappedAttrTable, aMapped, PL_DHASH_ADD));
|
|
if (!entry)
|
|
return nsnull;
|
|
if (!entry->mAttributes) {
|
|
// We added a new entry to the hashtable, so we have a new unique set.
|
|
entry->mAttributes = aMapped;
|
|
}
|
|
NS_ADDREF(entry->mAttributes); // for caller
|
|
return entry->mAttributes;
|
|
}
|
|
|
|
void
|
|
nsHTMLStyleSheet::DropMappedAttributes(nsMappedAttributes* aMapped)
|
|
{
|
|
NS_ENSURE_TRUE(aMapped, /**/);
|
|
|
|
NS_ASSERTION(mMappedAttrTable.ops, "table uninitialized");
|
|
#ifdef DEBUG
|
|
PRUint32 entryCount = mMappedAttrTable.entryCount - 1;
|
|
#endif
|
|
|
|
PL_DHashTableOperate(&mMappedAttrTable, aMapped, PL_DHASH_REMOVE);
|
|
|
|
NS_ASSERTION(entryCount == mMappedAttrTable.entryCount, "not removed");
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
void nsHTMLStyleSheet::List(FILE* out, PRInt32 aIndent) const
|
|
{
|
|
// Indent
|
|
for (PRInt32 index = aIndent; --index >= 0; ) fputs(" ", out);
|
|
|
|
fputs("HTML Style Sheet: ", out);
|
|
nsCAutoString urlSpec;
|
|
mURL->GetSpec(urlSpec);
|
|
if (!urlSpec.IsEmpty()) {
|
|
fputs(urlSpec.get(), out);
|
|
}
|
|
fputs("\n", out);
|
|
}
|
|
#endif
|
|
|
|
// XXX For convenience and backwards compatibility
|
|
nsresult
|
|
NS_NewHTMLStyleSheet(nsHTMLStyleSheet** aInstancePtrResult, nsIURI* aURL,
|
|
nsIDocument* aDocument)
|
|
{
|
|
nsresult rv;
|
|
nsHTMLStyleSheet* sheet;
|
|
if (NS_FAILED(rv = NS_NewHTMLStyleSheet(&sheet)))
|
|
return rv;
|
|
|
|
if (NS_FAILED(rv = sheet->Init(aURL, aDocument))) {
|
|
NS_RELEASE(sheet);
|
|
return rv;
|
|
}
|
|
|
|
*aInstancePtrResult = sheet;
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
nsresult
|
|
NS_NewHTMLStyleSheet(nsHTMLStyleSheet** aInstancePtrResult)
|
|
{
|
|
NS_ASSERTION(aInstancePtrResult, "null out param");
|
|
|
|
nsHTMLStyleSheet *it = new nsHTMLStyleSheet();
|
|
if (!it) {
|
|
*aInstancePtrResult = nsnull;
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
NS_ADDREF(it);
|
|
nsresult rv = it->Init();
|
|
if (NS_FAILED(rv))
|
|
NS_RELEASE(it);
|
|
|
|
*aInstancePtrResult = it; // NS_ADDREF above, or set to null by NS_RELEASE
|
|
return rv;
|
|
}
|