LCOV - app.info - content/base/src/nsGenConImageContent.cpp

LCOV - code coverage report
| Current view: | directory - content/base/src - nsGenConImageContent.cpp (source / functions) |  | Found | Hit | Coverage |
| Test: | app.info | Lines: | 28 | 0 | 0.0 %
| Date: | 2012-06-02 | Functions: | 9 | 0 | 0.0 %

           1                 :
           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 nsGenConImageContent.
          16                 :  *
          17                 :  * The Initial Developer of the Original Code is the Mozilla Foundation.
          18                 :  * Portions created by the Initial Developer are Copyright (C) 2004
          19                 :  * the Initial Developer. All Rights Reserved.
          20                 :  *
          21                 :  * Contributor(s):
          22                 :  *   L. David Baron <dbaron@dbaron.org> (original author)
          23                 :  *
          24                 :  * Alternatively, the contents of this file may be used under the terms of
          25                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
          26                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
          27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
          28                 :  * of those above. If you wish to allow use of your version of this file only
          29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
          30                 :  * use your version of this file under the terms of the MPL, indicate your
          31                 :  * decision by deleting the provisions above and replace them with the notice
          32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
          33                 :  * the provisions above, a recipient may use your version of this file under
          34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
          35                 :  *
          36                 :  * ***** END LICENSE BLOCK ***** */
          37                 :
          38                 : /**
          39                 :  * A fake content node class so that the image frame for
          40                 :  *   content: url(foo);
          41                 :  * in CSS can have an nsIImageLoadingContent but use an
          42                 :  * imgIRequest that's already been loaded from the style system.
          43                 :  */
          44                 :
          45                 : #include "nsContentCreatorFunctions.h"
          46                 : #include "nsXMLElement.h"
          47                 : #include "nsImageLoadingContent.h"
          48                 : #include "imgIRequest.h"
          49                 : #include "nsEventStates.h"
          50                 :
          51                 : class nsGenConImageContent : public nsXMLElement,
          52                 :                              public nsImageLoadingContent
          53                 : {
          54                 : public:
          55               0 :   nsGenConImageContent(already_AddRefed<nsINodeInfo> aNodeInfo)
          56               0 :     : nsXMLElement(aNodeInfo)
          57                 :   {
          58                 :     // nsImageLoadingContent starts out broken, so we start out
          59                 :     // suppressed to match it.
          60               0 :     AddStatesSilently(NS_EVENT_STATE_SUPPRESSED);
          61               0 :   }
          62                 :
          63               0 :   nsresult Init(imgIRequest* aImageRequest)
          64                 :   {
          65                 :     // No need to notify, since we have no frame.
          66               0 :     return UseAsPrimaryRequest(aImageRequest, false);
          67                 :   }
          68                 :
          69                 :   // nsIContent overrides
          70                 :   virtual nsEventStates IntrinsicState() const;
          71                 :
          72                 : private:
          73                 :   virtual ~nsGenConImageContent();
          74                 :
          75                 : public:
          76                 :   NS_DECL_ISUPPORTS_INHERITED
          77                 : };
          78                 :
          79               0 : NS_IMPL_ISUPPORTS_INHERITED3(nsGenConImageContent, nsXMLElement,
          80                 :                              nsIImageLoadingContent, imgIContainerObserver, imgIDecoderObserver)
          81                 :
          82                 : nsresult
          83               0 : NS_NewGenConImageContent(nsIContent** aResult, already_AddRefed<nsINodeInfo> aNodeInfo,
          84                 :                          imgIRequest* aImageRequest)
          85                 : {
          86               0 :   NS_PRECONDITION(aImageRequest, "Must have request!");
          87               0 :   nsGenConImageContent *it = new nsGenConImageContent(aNodeInfo);
          88               0 :   if (!it)
          89               0 :     return NS_ERROR_OUT_OF_MEMORY;
          90               0 :   NS_ADDREF(*aResult = it);
          91               0 :   nsresult rv = it->Init(aImageRequest);
          92               0 :   if (NS_FAILED(rv))
          93               0 :     NS_RELEASE(*aResult);
          94               0 :   return rv;
          95                 : }
          96                 :
          97               0 : nsGenConImageContent::~nsGenConImageContent()
          98                 : {
          99               0 :   DestroyImageLoadingContent();
         100               0 : }
         101                 :
         102                 : nsEventStates
         103               0 : nsGenConImageContent::IntrinsicState() const
         104                 : {
         105               0 :   nsEventStates state = nsXMLElement::IntrinsicState();
         106                 :
         107               0 :   nsEventStates imageState = nsImageLoadingContent::ImageState();
         108               0 :   if (imageState.HasAtLeastOneOfStates(NS_EVENT_STATE_BROKEN | NS_EVENT_STATE_USERDISABLED)) {
         109                 :     // We should never be in an error state; if the image fails to load, we
         110                 :     // just go to the suppressed state.
         111               0 :     imageState |= NS_EVENT_STATE_SUPPRESSED;
         112               0 :     imageState &= ~NS_EVENT_STATE_BROKEN;
         113                 :   }
         114               0 :   imageState &= ~NS_EVENT_STATE_LOADING;
         115               0 :   return state | imageState;
         116                 : }

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