LCOV - code coverage report
Current view: directory - layout/xul/base/src - nsXULLabelFrame.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 39 0 0.0 %
Date: 2012-06-02 Functions: 9 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.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                 :  *
      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                 : /* derived class of nsBlockFrame used for xul:label elements */
      39                 : 
      40                 : #include "nsXULLabelFrame.h"
      41                 : #include "nsHTMLParts.h"
      42                 : #include "nsINameSpaceManager.h"
      43                 : #include "nsEventStateManager.h"
      44                 : 
      45                 : nsIFrame*
      46               0 : NS_NewXULLabelFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
      47                 : {
      48               0 :   nsXULLabelFrame* it = new (aPresShell) nsXULLabelFrame(aContext);
      49                 :   
      50               0 :   if (it)
      51               0 :     it->SetFlags(NS_BLOCK_FLOAT_MGR | NS_BLOCK_MARGIN_ROOT);
      52                 : 
      53               0 :   return it;
      54                 : }
      55                 : 
      56               0 : NS_IMPL_FRAMEARENA_HELPERS(nsXULLabelFrame)
      57                 : 
      58                 : // If you make changes to this function, check its counterparts 
      59                 : // in nsBoxFrame and nsTextBoxFrame
      60                 : nsresult
      61               0 : nsXULLabelFrame::RegUnregAccessKey(bool aDoReg)
      62                 : {
      63                 :   // if we have no content, we can't do anything
      64               0 :   if (!mContent)
      65               0 :     return NS_ERROR_FAILURE;
      66                 : 
      67                 :   // To filter out <label>s without a control attribute.
      68                 :   // XXXjag a side-effect is that we filter out anonymous <label>s
      69                 :   // in e.g. <menu>, <menuitem>, <button>. These <label>s inherit
      70                 :   // |accesskey| and would otherwise register themselves, overwriting
      71                 :   // the content we really meant to be registered.
      72               0 :   if (!mContent->HasAttr(kNameSpaceID_None, nsGkAtoms::control))
      73               0 :     return NS_OK;
      74                 : 
      75               0 :   nsAutoString accessKey;
      76               0 :   mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::accesskey, accessKey);
      77                 : 
      78               0 :   if (accessKey.IsEmpty())
      79               0 :     return NS_OK;
      80                 : 
      81                 :   // With a valid PresContext we can get the ESM 
      82                 :   // and register the access key
      83               0 :   nsEventStateManager *esm = PresContext()->EventStateManager();
      84                 : 
      85               0 :   PRUint32 key = accessKey.First();
      86               0 :   if (aDoReg)
      87               0 :     esm->RegisterAccessKey(mContent, key);
      88                 :   else
      89               0 :     esm->UnregisterAccessKey(mContent, key);
      90                 : 
      91               0 :   return NS_OK;
      92                 : }
      93                 : 
      94                 : /////////////////////////////////////////////////////////////////////////////
      95                 : // nsIFrame
      96                 : 
      97                 : NS_IMETHODIMP
      98               0 : nsXULLabelFrame::Init(nsIContent*      aContent,
      99                 :                       nsIFrame*        aParent,
     100                 :                       nsIFrame*        aPrevInFlow)
     101                 : {
     102               0 :   nsresult rv = nsBlockFrame::Init(aContent, aParent, aPrevInFlow);
     103               0 :   if (NS_FAILED(rv))
     104               0 :     return rv;
     105                 : 
     106                 :   // register access key
     107               0 :   return RegUnregAccessKey(true);
     108                 : }
     109                 : 
     110                 : void
     111               0 : nsXULLabelFrame::DestroyFrom(nsIFrame* aDestructRoot)
     112                 : {
     113                 :   // unregister access key
     114               0 :   RegUnregAccessKey(false);
     115               0 :   nsBlockFrame::DestroyFrom(aDestructRoot);
     116               0 : } 
     117                 : 
     118                 : NS_IMETHODIMP
     119               0 : nsXULLabelFrame::AttributeChanged(PRInt32 aNameSpaceID,
     120                 :                                   nsIAtom* aAttribute,
     121                 :                                   PRInt32 aModType)
     122                 : {
     123                 :   nsresult rv = nsBlockFrame::AttributeChanged(aNameSpaceID, 
     124               0 :                                                aAttribute, aModType);
     125                 : 
     126                 :   // If the accesskey changed, register for the new value
     127                 :   // The old value has been unregistered in nsXULElement::SetAttr
     128               0 :   if (aAttribute == nsGkAtoms::accesskey || aAttribute == nsGkAtoms::control)
     129               0 :     RegUnregAccessKey(true);
     130                 : 
     131               0 :   return rv;
     132                 : }
     133                 : 
     134                 : nsIAtom*
     135               0 : nsXULLabelFrame::GetType() const
     136                 : {
     137               0 :   return nsGkAtoms::XULLabelFrame;
     138                 : }
     139                 : 
     140                 : /////////////////////////////////////////////////////////////////////////////
     141                 : // Diagnostics
     142                 : 
     143                 : #ifdef NS_DEBUG
     144                 : NS_IMETHODIMP
     145               0 : nsXULLabelFrame::GetFrameName(nsAString& aResult) const
     146                 : {
     147               0 :   return MakeFrameName(NS_LITERAL_STRING("XULLabel"), aResult);
     148                 : }
     149                 : #endif

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