LCOV - code coverage report
Current view: directory - content/svg/content/src - nsSVGStyleElement.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 92 0 0.0 %
Date: 2012-06-02 Functions: 90 0 0.0 %

       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 the Mozilla SVG project.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * IBM Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 2004
      20                 :  * IBM Corporation. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *   IBM Corporation (original author)
      24                 :  *
      25                 :  * Alternatively, the contents of this file may be used under the terms of
      26                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      27                 :  * 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                 : #include "nsSVGElement.h"
      40                 : #include "nsGkAtoms.h"
      41                 : #include "nsIDOMSVGStyleElement.h"
      42                 : #include "nsUnicharUtils.h"
      43                 : #include "nsIDocument.h"
      44                 : #include "nsStyleLinkElement.h"
      45                 : #include "nsContentUtils.h"
      46                 : 
      47                 : typedef nsSVGElement nsSVGStyleElementBase;
      48                 : 
      49                 : class nsSVGStyleElement : public nsSVGStyleElementBase,
      50                 :                           public nsIDOMSVGStyleElement,
      51                 :                           public nsStyleLinkElement,
      52                 :                           public nsStubMutationObserver
      53               0 : {
      54                 : protected:
      55                 :   friend nsresult NS_NewSVGStyleElement(nsIContent **aResult,
      56                 :                                         already_AddRefed<nsINodeInfo> aNodeInfo);
      57                 :   nsSVGStyleElement(already_AddRefed<nsINodeInfo> aNodeInfo);
      58                 :   
      59                 : public:
      60                 :   NS_DECL_ISUPPORTS_INHERITED
      61                 :   NS_DECL_NSIDOMSVGSTYLEELEMENT
      62                 : 
      63                 :   // xxx I wish we could use virtual inheritance
      64               0 :   NS_FORWARD_NSIDOMNODE(nsSVGStyleElementBase::)
      65               0 :   NS_FORWARD_NSIDOMELEMENT(nsSVGStyleElementBase::)
      66               0 :   NS_FORWARD_NSIDOMSVGELEMENT(nsSVGStyleElementBase::)
      67                 : 
      68                 :   // nsIContent
      69                 :   virtual nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
      70                 :                               nsIContent* aBindingParent,
      71                 :                               bool aCompileEventHandlers);
      72                 :   virtual void UnbindFromTree(bool aDeep = true,
      73                 :                               bool aNullParent = true);
      74               0 :   nsresult SetAttr(PRInt32 aNameSpaceID, nsIAtom* aName,
      75                 :                    const nsAString& aValue, bool aNotify)
      76                 :   {
      77               0 :     return SetAttr(aNameSpaceID, aName, nsnull, aValue, aNotify);
      78                 :   }
      79                 :   virtual nsresult SetAttr(PRInt32 aNameSpaceID, nsIAtom* aName,
      80                 :                            nsIAtom* aPrefix, const nsAString& aValue,
      81                 :                            bool aNotify);
      82                 :   virtual nsresult UnsetAttr(PRInt32 aNameSpaceID, nsIAtom* aAttribute,
      83                 :                              bool aNotify);
      84                 : 
      85                 :   virtual nsresult Clone(nsINodeInfo *aNodeInfo, nsINode **aResult) const;
      86                 : 
      87                 :   // nsIMutationObserver
      88                 :   NS_DECL_NSIMUTATIONOBSERVER_CHARACTERDATACHANGED
      89                 :   NS_DECL_NSIMUTATIONOBSERVER_CONTENTAPPENDED
      90                 :   NS_DECL_NSIMUTATIONOBSERVER_CONTENTINSERTED
      91                 :   NS_DECL_NSIMUTATIONOBSERVER_CONTENTREMOVED
      92                 : 
      93                 :   virtual nsXPCClassInfo* GetClassInfo();
      94                 : protected:
      95                 :   // Dummy init method to make the NS_IMPL_NS_NEW_SVG_ELEMENT and
      96                 :   // NS_IMPL_ELEMENT_CLONE_WITH_INIT usable with this class. This should be
      97                 :   // completely optimized away.
      98               0 :   inline nsresult Init()
      99                 :   {
     100               0 :     return NS_OK;
     101                 :   }
     102                 : 
     103                 :   // nsStyleLinkElement overrides
     104                 :   already_AddRefed<nsIURI> GetStyleSheetURL(bool* aIsInline);
     105                 : 
     106                 :   void GetStyleSheetInfo(nsAString& aTitle,
     107                 :                          nsAString& aType,
     108                 :                          nsAString& aMedia,
     109                 :                          bool* aIsAlternate);
     110                 :   /**
     111                 :    * Common method to call from the various mutation observer methods.
     112                 :    * aContent is a content node that's either the one that changed or its
     113                 :    * parent; we should only respond to the change if aContent is non-anonymous.
     114                 :    */
     115                 :   void ContentChanged(nsIContent* aContent);
     116                 : };
     117                 : 
     118                 : 
     119               0 : NS_IMPL_NS_NEW_SVG_ELEMENT(Style)
     120                 : 
     121                 : 
     122                 : //----------------------------------------------------------------------
     123                 : // nsISupports methods
     124                 : 
     125               0 : NS_IMPL_ADDREF_INHERITED(nsSVGStyleElement,nsSVGStyleElementBase)
     126               0 : NS_IMPL_RELEASE_INHERITED(nsSVGStyleElement,nsSVGStyleElementBase)
     127                 : 
     128               0 : DOMCI_NODE_DATA(SVGStyleElement, nsSVGStyleElement)
     129                 : 
     130               0 : NS_INTERFACE_TABLE_HEAD(nsSVGStyleElement)
     131               0 :   NS_NODE_INTERFACE_TABLE7(nsSVGStyleElement, nsIDOMNode, nsIDOMElement,
     132                 :                            nsIDOMSVGElement, nsIDOMSVGStyleElement,
     133                 :                            nsIDOMLinkStyle, nsIStyleSheetLinkingElement,
     134                 :                            nsIMutationObserver)
     135               0 :   NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(SVGStyleElement)
     136               0 : NS_INTERFACE_MAP_END_INHERITING(nsSVGStyleElementBase)
     137                 : 
     138                 : //----------------------------------------------------------------------
     139                 : // Implementation
     140                 : 
     141               0 : nsSVGStyleElement::nsSVGStyleElement(already_AddRefed<nsINodeInfo> aNodeInfo)
     142               0 :   : nsSVGStyleElementBase(aNodeInfo)
     143                 : {
     144               0 :   AddMutationObserver(this);
     145               0 : }
     146                 : 
     147                 : 
     148                 : //----------------------------------------------------------------------
     149                 : // nsIDOMNode methods
     150                 : 
     151                 : 
     152               0 : NS_IMPL_ELEMENT_CLONE_WITH_INIT(nsSVGStyleElement)
     153                 : 
     154                 : 
     155                 : //----------------------------------------------------------------------
     156                 : // nsIContent methods
     157                 : 
     158                 : nsresult
     159               0 : nsSVGStyleElement::BindToTree(nsIDocument* aDocument, nsIContent* aParent,
     160                 :                               nsIContent* aBindingParent,
     161                 :                               bool aCompileEventHandlers)
     162                 : {
     163                 :   nsresult rv = nsSVGStyleElementBase::BindToTree(aDocument, aParent,
     164                 :                                                   aBindingParent,
     165               0 :                                                   aCompileEventHandlers);
     166               0 :   NS_ENSURE_SUCCESS(rv, rv);
     167                 : 
     168               0 :   void (nsSVGStyleElement::*update)() = &nsSVGStyleElement::UpdateStyleSheetInternal;
     169               0 :   nsContentUtils::AddScriptRunner(NS_NewRunnableMethod(this, update));
     170                 : 
     171               0 :   return rv;  
     172                 : }
     173                 : 
     174                 : void
     175               0 : nsSVGStyleElement::UnbindFromTree(bool aDeep, bool aNullParent)
     176                 : {
     177               0 :   nsCOMPtr<nsIDocument> oldDoc = GetCurrentDoc();
     178                 : 
     179               0 :   nsSVGStyleElementBase::UnbindFromTree(aDeep, aNullParent);
     180               0 :   UpdateStyleSheetInternal(oldDoc);
     181               0 : }
     182                 : 
     183                 : nsresult
     184               0 : nsSVGStyleElement::SetAttr(PRInt32 aNameSpaceID, nsIAtom* aName,
     185                 :                            nsIAtom* aPrefix, const nsAString& aValue,
     186                 :                            bool aNotify)
     187                 : {
     188                 :   nsresult rv = nsSVGStyleElementBase::SetAttr(aNameSpaceID, aName, aPrefix,
     189               0 :                                                aValue, aNotify);
     190               0 :   if (NS_SUCCEEDED(rv)) {
     191                 :     UpdateStyleSheetInternal(nsnull,
     192                 :                              aNameSpaceID == kNameSpaceID_None &&
     193                 :                              (aName == nsGkAtoms::title ||
     194                 :                               aName == nsGkAtoms::media ||
     195               0 :                               aName == nsGkAtoms::type));
     196                 :   }
     197                 : 
     198               0 :   return rv;
     199                 : }
     200                 : 
     201                 : nsresult
     202               0 : nsSVGStyleElement::UnsetAttr(PRInt32 aNameSpaceID, nsIAtom* aAttribute,
     203                 :                               bool aNotify)
     204                 : {
     205                 :   nsresult rv = nsSVGStyleElementBase::UnsetAttr(aNameSpaceID, aAttribute,
     206               0 :                                                  aNotify);
     207               0 :   if (NS_SUCCEEDED(rv)) {
     208                 :     UpdateStyleSheetInternal(nsnull,
     209                 :                              aNameSpaceID == kNameSpaceID_None &&
     210                 :                              (aAttribute == nsGkAtoms::title ||
     211                 :                               aAttribute == nsGkAtoms::media ||
     212               0 :                               aAttribute == nsGkAtoms::type));
     213                 :   }
     214                 : 
     215               0 :   return rv;
     216                 : }
     217                 : 
     218                 : //----------------------------------------------------------------------
     219                 : // nsIMutationObserver methods
     220                 : 
     221                 : void
     222               0 : nsSVGStyleElement::CharacterDataChanged(nsIDocument* aDocument,
     223                 :                                         nsIContent* aContent,
     224                 :                                         CharacterDataChangeInfo* aInfo)
     225                 : {
     226               0 :   ContentChanged(aContent);
     227               0 : }
     228                 : 
     229                 : void
     230               0 : nsSVGStyleElement::ContentAppended(nsIDocument* aDocument,
     231                 :                                    nsIContent* aContainer,
     232                 :                                    nsIContent* aFirstNewContent,
     233                 :                                    PRInt32 aNewIndexInContainer)
     234                 : {
     235               0 :   ContentChanged(aContainer);
     236               0 : }
     237                 :  
     238                 : void
     239               0 : nsSVGStyleElement::ContentInserted(nsIDocument* aDocument,
     240                 :                                    nsIContent* aContainer,
     241                 :                                    nsIContent* aChild,
     242                 :                                    PRInt32 aIndexInContainer)
     243                 : {
     244               0 :   ContentChanged(aChild);
     245               0 : }
     246                 :  
     247                 : void
     248               0 : nsSVGStyleElement::ContentRemoved(nsIDocument* aDocument,
     249                 :                                   nsIContent* aContainer,
     250                 :                                   nsIContent* aChild,
     251                 :                                   PRInt32 aIndexInContainer,
     252                 :                                   nsIContent* aPreviousSibling)
     253                 : {
     254               0 :   ContentChanged(aChild);
     255               0 : }
     256                 : 
     257                 : void
     258               0 : nsSVGStyleElement::ContentChanged(nsIContent* aContent)
     259                 : {
     260               0 :   if (nsContentUtils::IsInSameAnonymousTree(this, aContent)) {
     261               0 :     UpdateStyleSheetInternal(nsnull);
     262                 :   }
     263               0 : }
     264                 : 
     265                 : //----------------------------------------------------------------------
     266                 : // nsIDOMSVGStyleElement methods
     267                 : 
     268                 : /* attribute DOMString xmlspace; */
     269               0 : NS_IMETHODIMP nsSVGStyleElement::GetXmlspace(nsAString & aXmlspace)
     270                 : {
     271               0 :   GetAttr(kNameSpaceID_XML, nsGkAtoms::space, aXmlspace);
     272                 : 
     273               0 :   return NS_OK;
     274                 : }
     275               0 : NS_IMETHODIMP nsSVGStyleElement::SetXmlspace(const nsAString & aXmlspace)
     276                 : {
     277               0 :   return SetAttr(kNameSpaceID_XML, nsGkAtoms::space, aXmlspace, true);
     278                 : }
     279                 : 
     280                 : /* attribute DOMString type; */
     281               0 : NS_IMETHODIMP nsSVGStyleElement::GetType(nsAString & aType)
     282                 : {
     283               0 :   GetAttr(kNameSpaceID_None, nsGkAtoms::type, aType);
     284                 : 
     285               0 :   return NS_OK;
     286                 : }
     287               0 : NS_IMETHODIMP nsSVGStyleElement::SetType(const nsAString & aType)
     288                 : {
     289               0 :   return SetAttr(kNameSpaceID_None, nsGkAtoms::type, aType, true);
     290                 : }
     291                 : 
     292                 : /* attribute DOMString media; */
     293               0 : NS_IMETHODIMP nsSVGStyleElement::GetMedia(nsAString & aMedia)
     294                 : {
     295               0 :   GetAttr(kNameSpaceID_None, nsGkAtoms::media, aMedia);
     296                 : 
     297               0 :   return NS_OK;
     298                 : }
     299               0 : NS_IMETHODIMP nsSVGStyleElement::SetMedia(const nsAString & aMedia)
     300                 : {
     301               0 :   return SetAttr(kNameSpaceID_None, nsGkAtoms::media, aMedia, true);
     302                 : }
     303                 : 
     304                 : /* attribute DOMString title; */
     305               0 : NS_IMETHODIMP nsSVGStyleElement::GetTitle(nsAString & aTitle)
     306                 : {
     307               0 :   GetAttr(kNameSpaceID_None, nsGkAtoms::title, aTitle);
     308                 : 
     309               0 :   return NS_OK;
     310                 : }
     311               0 : NS_IMETHODIMP nsSVGStyleElement::SetTitle(const nsAString & aTitle)
     312                 : {
     313               0 :   return SetAttr(kNameSpaceID_None, nsGkAtoms::title, aTitle, true);
     314                 : }
     315                 : 
     316                 : //----------------------------------------------------------------------
     317                 : // nsStyleLinkElement methods
     318                 : 
     319                 : already_AddRefed<nsIURI>
     320               0 : nsSVGStyleElement::GetStyleSheetURL(bool* aIsInline)
     321                 : {
     322               0 :   *aIsInline = true;
     323               0 :   return nsnull;
     324                 : }
     325                 : 
     326                 : void
     327               0 : nsSVGStyleElement::GetStyleSheetInfo(nsAString& aTitle,
     328                 :                                      nsAString& aType,
     329                 :                                      nsAString& aMedia,
     330                 :                                      bool* aIsAlternate)
     331                 : {
     332               0 :   *aIsAlternate = false;
     333                 : 
     334               0 :   nsAutoString title;
     335               0 :   GetAttr(kNameSpaceID_None, nsGkAtoms::title, title);
     336               0 :   title.CompressWhitespace();
     337               0 :   aTitle.Assign(title);
     338                 : 
     339               0 :   GetAttr(kNameSpaceID_None, nsGkAtoms::media, aMedia);
     340                 :   // The SVG spec is formulated in terms of the CSS2 spec,
     341                 :   // which specifies that media queries are case insensitive.
     342               0 :   nsContentUtils::ASCIIToLower(aMedia);
     343                 : 
     344               0 :   GetAttr(kNameSpaceID_None, nsGkAtoms::type, aType);
     345               0 :   if (aType.IsEmpty()) {
     346               0 :     aType.AssignLiteral("text/css");
     347                 :   }
     348                 : 
     349                 :   return;
     350                 : }

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