LCOV - code coverage report
Current view: directory - layout/xul/base/src - nsStackFrame.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 18 0 0.0 %
Date: 2012-06-02 Functions: 5 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 Mozilla Communicator client 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                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      26                 :  * or 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                 : // Eric Vaughan
      40                 : // Netscape Communications
      41                 : //
      42                 : // See documentation in associated header file
      43                 : //
      44                 : 
      45                 : #include "nsStackFrame.h"
      46                 : #include "nsStyleContext.h"
      47                 : #include "nsIContent.h"
      48                 : #include "nsCOMPtr.h"
      49                 : #include "nsHTMLParts.h"
      50                 : #include "nsIPresShell.h"
      51                 : #include "nsCSSRendering.h"
      52                 : #include "nsBoxLayoutState.h"
      53                 : #include "nsStackLayout.h"
      54                 : #include "nsDisplayList.h"
      55                 : 
      56                 : nsIFrame*
      57               0 : NS_NewStackFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
      58                 : {
      59               0 :   return new (aPresShell) nsStackFrame(aPresShell, aContext);
      60                 : }
      61                 : 
      62               0 : NS_IMPL_FRAMEARENA_HELPERS(nsStackFrame)
      63                 : 
      64               0 : nsStackFrame::nsStackFrame(nsIPresShell* aPresShell, nsStyleContext* aContext):
      65               0 :   nsBoxFrame(aPresShell, aContext)
      66                 : {
      67               0 :   nsCOMPtr<nsBoxLayout> layout;
      68               0 :   NS_NewStackLayout(aPresShell, layout);
      69               0 :   SetLayoutManager(layout);
      70               0 : }
      71                 : 
      72                 : // REVIEW: The old code put everything in the background layer. To be more
      73                 : // consistent with the way other frames work, I'm putting everything in the
      74                 : // Content() (i.e., foreground) layer (see nsFrame::BuildDisplayListForChild,
      75                 : // the case for stacking context but non-positioned, non-floating frames).
      76                 : // This could easily be changed back by hacking nsBoxFrame::BuildDisplayListInternal
      77                 : // a bit more.
      78                 : NS_IMETHODIMP
      79               0 : nsStackFrame::BuildDisplayListForChildren(nsDisplayListBuilder*   aBuilder,
      80                 :                                           const nsRect&           aDirtyRect,
      81                 :                                           const nsDisplayListSet& aLists)
      82                 : {
      83                 :   // BuildDisplayListForChild puts stacking contexts into the PositionedDescendants
      84                 :   // list. So we need to map that list to aLists.Content(). This is an easy way to
      85                 :   // do that.
      86               0 :   nsDisplayList* content = aLists.Content();
      87               0 :   nsDisplayListSet kidLists(content, content, content, content, content, content);
      88               0 :   nsIFrame* kid = mFrames.FirstChild();
      89               0 :   while (kid) {
      90                 :     // Force each child into its own true stacking context.
      91                 :     nsresult rv =
      92                 :       BuildDisplayListForChild(aBuilder, kid, aDirtyRect, kidLists,
      93               0 :                                DISPLAY_CHILD_FORCE_STACKING_CONTEXT);
      94               0 :     NS_ENSURE_SUCCESS(rv, rv);
      95               0 :     kid = kid->GetNextSibling();
      96                 :   }
      97               0 :   return NS_OK;
      98                 : }

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