LCOV - code coverage report
Current view: directory - layout/xul/base/src - nsProgressMeterFrame.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 57 0 0.0 %
Date: 2012-06-02 Functions: 12 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                 : // David Hyatt & Eric Vaughan
      40                 : // Netscape Communications
      41                 : //
      42                 : // See documentation in associated header file
      43                 : //
      44                 : 
      45                 : #include "nsProgressMeterFrame.h"
      46                 : #include "nsCSSRendering.h"
      47                 : #include "nsIContent.h"
      48                 : #include "nsPresContext.h"
      49                 : #include "nsGkAtoms.h"
      50                 : #include "nsINameSpaceManager.h"
      51                 : #include "nsCOMPtr.h"
      52                 : #include "nsBoxLayoutState.h"
      53                 : #include "nsIReflowCallback.h"
      54                 : #include "nsContentUtils.h"
      55                 : //
      56                 : // NS_NewToolbarFrame
      57                 : //
      58                 : // Creates a new Toolbar frame and returns it
      59                 : //
      60                 : nsIFrame*
      61               0 : NS_NewProgressMeterFrame (nsIPresShell* aPresShell, nsStyleContext* aContext)
      62                 : {
      63               0 :   return new (aPresShell) nsProgressMeterFrame(aPresShell, aContext);
      64                 : }
      65                 : 
      66               0 : NS_IMPL_FRAMEARENA_HELPERS(nsProgressMeterFrame)
      67                 : 
      68                 : //
      69                 : // nsProgressMeterFrame dstr
      70                 : //
      71                 : // Cleanup, if necessary
      72                 : //
      73               0 : nsProgressMeterFrame :: ~nsProgressMeterFrame ( )
      74                 : {
      75               0 : }
      76                 : 
      77                 : class nsAsyncProgressMeterInit : public nsIReflowCallback
      78               0 : {
      79                 : public:
      80               0 :   nsAsyncProgressMeterInit(nsIFrame* aFrame) : mWeakFrame(aFrame) {}
      81                 : 
      82               0 :   virtual bool ReflowFinished()
      83                 :   {
      84               0 :     bool shouldFlush = false;
      85               0 :     nsIFrame* frame = mWeakFrame.GetFrame();
      86               0 :     if (frame) {
      87               0 :       nsAutoScriptBlocker scriptBlocker;
      88               0 :       frame->AttributeChanged(kNameSpaceID_None, nsGkAtoms::value, 0);
      89               0 :       shouldFlush = true;
      90                 :     }
      91               0 :     delete this;
      92               0 :     return shouldFlush;
      93                 :   }
      94                 : 
      95               0 :   virtual void ReflowCallbackCanceled()
      96                 :   {
      97               0 :     delete this;
      98               0 :   }
      99                 : 
     100                 :   nsWeakFrame mWeakFrame;
     101                 : };
     102                 : 
     103                 : NS_IMETHODIMP
     104               0 : nsProgressMeterFrame::DoLayout(nsBoxLayoutState& aState)
     105                 : {
     106               0 :   if (mNeedsReflowCallback) {
     107               0 :     nsIReflowCallback* cb = new nsAsyncProgressMeterInit(this);
     108               0 :     if (cb) {
     109               0 :       PresContext()->PresShell()->PostReflowCallback(cb);
     110                 :     }
     111               0 :     mNeedsReflowCallback = false;
     112                 :   }
     113               0 :   return nsBoxFrame::DoLayout(aState);
     114                 : }
     115                 : 
     116                 : NS_IMETHODIMP
     117               0 : nsProgressMeterFrame::AttributeChanged(PRInt32 aNameSpaceID,
     118                 :                                        nsIAtom* aAttribute,
     119                 :                                        PRInt32 aModType)
     120                 : {
     121               0 :   NS_ASSERTION(!nsContentUtils::IsSafeToRunScript(),
     122                 :       "Scripts not blocked in nsProgressMeterFrame::AttributeChanged!");
     123                 :   nsresult rv = nsBoxFrame::AttributeChanged(aNameSpaceID, aAttribute,
     124               0 :                                              aModType);
     125               0 :   if (NS_OK != rv) {
     126               0 :     return rv;
     127                 :   }
     128                 : 
     129                 :   // did the progress change?
     130               0 :   if (nsGkAtoms::value == aAttribute || nsGkAtoms::max == aAttribute) {
     131               0 :     nsIFrame* barChild = GetFirstPrincipalChild();
     132               0 :     if (!barChild) return NS_OK;
     133               0 :     nsIFrame* remainderChild = barChild->GetNextSibling();
     134               0 :     if (!remainderChild) return NS_OK;
     135               0 :     nsCOMPtr<nsIContent> remainderContent = remainderChild->GetContent();
     136               0 :     if (!remainderContent) return NS_OK;
     137                 : 
     138               0 :     nsAutoString value, maxValue;
     139               0 :     mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::value, value);
     140               0 :     mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::max, maxValue);
     141                 : 
     142                 :     PRInt32 error;
     143               0 :     PRInt32 flex = value.ToInteger(&error);
     144               0 :     PRInt32 maxFlex = maxValue.ToInteger(&error);
     145               0 :     if (NS_FAILED(error) || maxValue.IsEmpty()) {
     146               0 :       maxFlex = 100;
     147                 :     }
     148               0 :     if (maxFlex < 1) {
     149               0 :       maxFlex = 1;
     150                 :     }
     151               0 :     if (flex < 0) {
     152               0 :       flex = 0;
     153                 :     }
     154               0 :     if (flex > maxFlex) {
     155               0 :       flex = maxFlex;
     156                 :     }
     157                 : 
     158                 :     nsContentUtils::AddScriptRunner(new nsSetAttrRunnable(
     159               0 :       barChild->GetContent(), nsGkAtoms::flex, flex));
     160                 :     nsContentUtils::AddScriptRunner(new nsSetAttrRunnable(
     161               0 :       remainderContent, nsGkAtoms::flex, maxFlex - flex));
     162                 :     nsContentUtils::AddScriptRunner(new nsReflowFrameRunnable(
     163               0 :       this, nsIPresShell::eTreeChange, NS_FRAME_IS_DIRTY));
     164                 :   }
     165               0 :   return NS_OK;
     166                 : }
     167                 : 
     168                 : #ifdef NS_DEBUG
     169                 : NS_IMETHODIMP
     170               0 : nsProgressMeterFrame::GetFrameName(nsAString& aResult) const
     171                 : {
     172               0 :   return MakeFrameName(NS_LITERAL_STRING("ProgressMeter"), aResult);
     173                 : }
     174                 : #endif

Generated by: LCOV version 1.7