LCOV - code coverage report
Current view: directory - layout/style - nsHTMLCSSStyleSheet.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 86 14 16.3 %
Date: 2012-06-02 Functions: 29 6 20.7 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is mozilla.org code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Netscape Communications Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 1998
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *   Pierre Phaneuf <pp@ludusdesign.com>
      24                 :  *
      25                 :  * Alternatively, the contents of this file may be used under the terms of
      26                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      27                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      28                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      29                 :  * of those above. If you wish to allow use of your version of this file only
      30                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      31                 :  * use your version of this file under the terms of the MPL, indicate your
      32                 :  * decision by deleting the provisions above and replace them with the notice
      33                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      34                 :  * the provisions above, a recipient may use your version of this file under
      35                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      36                 :  *
      37                 :  * ***** END LICENSE BLOCK ***** */
      38                 : 
      39                 : /*
      40                 :  * style sheet and style rule processor representing style attributes
      41                 :  */
      42                 : 
      43                 : #include "nsHTMLCSSStyleSheet.h"
      44                 : #include "nsCRT.h"
      45                 : #include "nsIAtom.h"
      46                 : #include "nsIURL.h"
      47                 : #include "nsCSSPseudoElements.h"
      48                 : #include "nsIStyleRule.h"
      49                 : #include "nsIFrame.h"
      50                 : #include "mozilla/css/StyleRule.h"
      51                 : #include "nsIStyleRuleProcessor.h"
      52                 : #include "nsPresContext.h"
      53                 : #include "nsIDocument.h"
      54                 : #include "nsCOMPtr.h"
      55                 : #include "nsRuleWalker.h"
      56                 : #include "nsRuleData.h"
      57                 : #include "nsRuleProcessorData.h"
      58                 : #include "mozilla/dom/Element.h"
      59                 : 
      60                 : using namespace mozilla::dom;
      61                 : namespace css = mozilla::css;
      62                 : 
      63             469 : nsHTMLCSSStyleSheet::nsHTMLCSSStyleSheet()
      64             469 :   : mDocument(nsnull)
      65                 : {
      66             469 : }
      67                 : 
      68            2035 : NS_IMPL_ISUPPORTS2(nsHTMLCSSStyleSheet,
      69                 :                    nsIStyleSheet,
      70                 :                    nsIStyleRuleProcessor)
      71                 : 
      72                 : /* virtual */ void
      73               0 : nsHTMLCSSStyleSheet::RulesMatching(ElementRuleProcessorData* aData)
      74                 : {
      75               0 :   Element* element = aData->mElement;
      76                 : 
      77                 :   // just get the one and only style rule from the content's STYLE attribute
      78               0 :   css::StyleRule* rule = element->GetInlineStyleRule();
      79               0 :   if (rule) {
      80               0 :     rule->RuleMatched();
      81               0 :     aData->mRuleWalker->Forward(rule);
      82                 :   }
      83                 : 
      84               0 :   rule = element->GetSMILOverrideStyleRule();
      85               0 :   if (rule) {
      86               0 :     if (aData->mPresContext->IsProcessingRestyles() &&
      87               0 :         !aData->mPresContext->IsProcessingAnimationStyleChange()) {
      88                 :       // Non-animation restyle -- don't process SMIL override style, because we
      89                 :       // don't want SMIL animation to trigger new CSS transitions. Instead,
      90                 :       // request an Animation restyle, so we still get noticed.
      91                 :       aData->mPresContext->PresShell()->RestyleForAnimation(element,
      92               0 :                                                             eRestyle_Self);
      93                 :     } else {
      94                 :       // Animation restyle (or non-restyle traversal of rules)
      95                 :       // Now we can walk SMIL overrride style, without triggering transitions.
      96               0 :       rule->RuleMatched();
      97               0 :       aData->mRuleWalker->Forward(rule);
      98                 :     }
      99                 :   }
     100               0 : }
     101                 : 
     102                 : /* virtual */ void
     103               0 : nsHTMLCSSStyleSheet::RulesMatching(PseudoElementRuleProcessorData* aData)
     104                 : {
     105               0 : }
     106                 : 
     107                 : /* virtual */ void
     108               0 : nsHTMLCSSStyleSheet::RulesMatching(AnonBoxRuleProcessorData* aData)
     109                 : {
     110               0 : }
     111                 : 
     112                 : #ifdef MOZ_XUL
     113                 : /* virtual */ void
     114               0 : nsHTMLCSSStyleSheet::RulesMatching(XULTreeRuleProcessorData* aData)
     115                 : {
     116               0 : }
     117                 : #endif
     118                 : 
     119                 : nsresult
     120             469 : nsHTMLCSSStyleSheet::Init(nsIURI* aURL, nsIDocument* aDocument)
     121                 : {
     122             469 :   NS_PRECONDITION(aURL && aDocument, "null ptr");
     123             469 :   if (! aURL || ! aDocument)
     124               0 :     return NS_ERROR_NULL_POINTER;
     125                 : 
     126             469 :   if (mURL || mDocument)
     127               0 :     return NS_ERROR_ALREADY_INITIALIZED;
     128                 : 
     129             469 :   mDocument = aDocument; // not refcounted!
     130             469 :   mURL = aURL;
     131             469 :   return NS_OK;
     132                 : }
     133                 : 
     134                 : // Test if style is dependent on content state
     135                 : /* virtual */ nsRestyleHint
     136               0 : nsHTMLCSSStyleSheet::HasStateDependentStyle(StateRuleProcessorData* aData)
     137                 : {
     138               0 :   return nsRestyleHint(0);
     139                 : }
     140                 : 
     141                 : /* virtual */ bool
     142               0 : nsHTMLCSSStyleSheet::HasDocumentStateDependentStyle(StateRuleProcessorData* aData)
     143                 : {
     144               0 :   return false;
     145                 : }
     146                 : 
     147                 : // Test if style is dependent on attribute
     148                 : /* virtual */ nsRestyleHint
     149               0 : nsHTMLCSSStyleSheet::HasAttributeDependentStyle(AttributeRuleProcessorData* aData)
     150                 : {
     151                 :   // Perhaps should check that it's XUL, SVG, (or HTML) namespace, but
     152                 :   // it doesn't really matter.
     153               0 :   if (aData->mAttrHasChanged && aData->mAttribute == nsGkAtoms::style) {
     154               0 :     return eRestyle_Self;
     155                 :   }
     156                 : 
     157               0 :   return nsRestyleHint(0);
     158                 : }
     159                 : 
     160                 : /* virtual */ bool
     161               0 : nsHTMLCSSStyleSheet::MediumFeaturesChanged(nsPresContext* aPresContext)
     162                 : {
     163               0 :   return false;
     164                 : }
     165                 : 
     166                 : /* virtual */ size_t
     167               0 : nsHTMLCSSStyleSheet::SizeOfExcludingThis(nsMallocSizeOfFun aMallocSizeOf) const
     168                 : {
     169               0 :   return 0;
     170                 : }
     171                 : 
     172                 : /* virtual */ size_t
     173               0 : nsHTMLCSSStyleSheet::SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf) const
     174                 : {
     175               0 :   return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
     176                 : }
     177                 : 
     178                 : void
     179               0 : nsHTMLCSSStyleSheet::Reset(nsIURI* aURL)
     180                 : {
     181               0 :   mURL = aURL;
     182               0 : }
     183                 : 
     184                 : /* virtual */ nsIURI*
     185               0 : nsHTMLCSSStyleSheet::GetSheetURI() const
     186                 : {
     187               0 :   return mURL;
     188                 : }
     189                 : 
     190                 : /* virtual */ nsIURI*
     191               0 : nsHTMLCSSStyleSheet::GetBaseURI() const
     192                 : {
     193               0 :   return mURL;
     194                 : }
     195                 : 
     196                 : /* virtual */ void
     197               0 : nsHTMLCSSStyleSheet::GetTitle(nsString& aTitle) const
     198                 : {
     199               0 :   aTitle.AssignLiteral("Internal HTML/CSS Style Sheet");
     200               0 : }
     201                 : 
     202                 : /* virtual */ void
     203               0 : nsHTMLCSSStyleSheet::GetType(nsString& aType) const
     204                 : {
     205               0 :   aType.AssignLiteral("text/html");
     206               0 : }
     207                 : 
     208                 : /* virtual */ bool
     209               0 : nsHTMLCSSStyleSheet::HasRules() const
     210                 : {
     211                 :   // Say we always have rules, since we don't know.
     212               0 :   return true;
     213                 : }
     214                 : 
     215                 : /* virtual */ bool
     216               0 : nsHTMLCSSStyleSheet::IsApplicable() const
     217                 : {
     218               0 :   return true;
     219                 : }
     220                 : 
     221                 : /* virtual */ void
     222               0 : nsHTMLCSSStyleSheet::SetEnabled(bool aEnabled)
     223                 : { // these can't be disabled
     224               0 : }
     225                 : 
     226                 : /* virtual */ bool
     227               0 : nsHTMLCSSStyleSheet::IsComplete() const
     228                 : {
     229               0 :   return true;
     230                 : }
     231                 : 
     232                 : /* virtual */ void
     233               0 : nsHTMLCSSStyleSheet::SetComplete()
     234                 : {
     235               0 : }
     236                 : 
     237                 : // style sheet owner info
     238                 : /* virtual */ nsIStyleSheet*
     239               0 : nsHTMLCSSStyleSheet::GetParentSheet() const
     240                 : {
     241               0 :   return nsnull;
     242                 : }
     243                 : 
     244                 : /* virtual */ nsIDocument*
     245               0 : nsHTMLCSSStyleSheet::GetOwningDocument() const
     246                 : {
     247               0 :   return mDocument;
     248                 : }
     249                 : 
     250                 : /* virtual */ void
     251            1407 : nsHTMLCSSStyleSheet::SetOwningDocument(nsIDocument* aDocument)
     252                 : {
     253            1407 :   mDocument = aDocument;
     254            1407 : }
     255                 : 
     256                 : #ifdef DEBUG
     257                 : /* virtual */ void
     258               0 : nsHTMLCSSStyleSheet::List(FILE* out, PRInt32 aIndent) const
     259                 : {
     260                 :   // Indent
     261               0 :   for (PRInt32 index = aIndent; --index >= 0; ) fputs("  ", out);
     262                 : 
     263               0 :   fputs("HTML CSS Style Sheet: ", out);
     264               0 :   nsCAutoString urlSpec;
     265               0 :   mURL->GetSpec(urlSpec);
     266               0 :   if (!urlSpec.IsEmpty()) {
     267               0 :     fputs(urlSpec.get(), out);
     268                 :   }
     269               0 :   fputs("\n", out);
     270               0 : }
     271                 : #endif

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