LCOV - code coverage report
Current view: directory - content/html/content/src - nsClientRect.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 69 2 2.9 %
Date: 2012-06-02 Functions: 25 2 8.0 %

       1                 : /* -*- Mode: IDL; 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 Novell code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Novell Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 2006
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *   Robert O'Callahan <robert@ocallahan.org>
      24                 :  *
      25                 :  * Alternatively, the contents of this file may be used under the terms of
      26                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      27                 :  * or 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 "nsClientRect.h"
      40                 : #include "nsContentUtils.h"
      41                 : #include "nsDOMClassInfoID.h"
      42                 : 
      43                 : #include "nsPresContext.h"
      44                 : #include "dombindings.h"
      45                 : 
      46                 : DOMCI_DATA(ClientRect, nsClientRect)
      47                 : 
      48               0 : NS_INTERFACE_TABLE_HEAD(nsClientRect)
      49               0 :   NS_INTERFACE_TABLE1(nsClientRect, nsIDOMClientRect)
      50               0 :   NS_INTERFACE_TABLE_TO_MAP_SEGUE
      51               0 :   NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(ClientRect)
      52               0 : NS_INTERFACE_MAP_END
      53                 : 
      54               0 : NS_IMPL_ADDREF(nsClientRect)
      55               0 : NS_IMPL_RELEASE(nsClientRect)
      56                 : 
      57               0 : nsClientRect::nsClientRect()
      58               0 :   : mX(0.0), mY(0.0), mWidth(0.0), mHeight(0.0)
      59                 : {
      60               0 : }
      61                 : 
      62                 : NS_IMETHODIMP
      63               0 : nsClientRect::GetLeft(float* aResult)
      64                 : {
      65               0 :   *aResult = mX;
      66               0 :   return NS_OK;
      67                 : }
      68                 : 
      69                 : NS_IMETHODIMP
      70               0 : nsClientRect::GetTop(float* aResult)
      71                 : {
      72               0 :   *aResult = mY;
      73               0 :   return NS_OK;
      74                 : }
      75                 : 
      76                 : NS_IMETHODIMP
      77               0 : nsClientRect::GetRight(float* aResult)
      78                 : {
      79               0 :   *aResult = mX + mWidth;
      80               0 :   return NS_OK;
      81                 : }
      82                 : 
      83                 : NS_IMETHODIMP
      84               0 : nsClientRect::GetBottom(float* aResult)
      85                 : {
      86               0 :   *aResult = mY + mHeight;
      87               0 :   return NS_OK;
      88                 : }
      89                 : 
      90                 : NS_IMETHODIMP
      91               0 : nsClientRect::GetWidth(float* aResult)
      92                 : {
      93               0 :   *aResult = mWidth;
      94               0 :   return NS_OK;
      95                 : }
      96                 : 
      97                 : NS_IMETHODIMP
      98               0 : nsClientRect::GetHeight(float* aResult)
      99                 : {
     100               0 :   *aResult = mHeight;
     101               0 :   return NS_OK;
     102                 : }
     103                 : 
     104                 : DOMCI_DATA(ClientRectList, nsClientRectList)
     105                 : 
     106            1464 : NS_IMPL_CYCLE_COLLECTION_CLASS(nsClientRectList)
     107               0 : NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(nsClientRectList)
     108               0 :   NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(mParent)
     109               0 :   NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
     110               0 : NS_IMPL_CYCLE_COLLECTION_UNLINK_END
     111               0 : NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(nsClientRectList)
     112               0 :   NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mParent)
     113               0 :   NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
     114               0 : NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
     115               0 : NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(nsClientRectList)
     116               0 :   NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER
     117               0 : NS_IMPL_CYCLE_COLLECTION_TRACE_END
     118                 : 
     119               0 : NS_INTERFACE_TABLE_HEAD(nsClientRectList)
     120               0 :   NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
     121               0 :   NS_INTERFACE_TABLE1(nsClientRectList, nsIDOMClientRectList)
     122               0 :   NS_INTERFACE_TABLE_TO_MAP_SEGUE_CYCLE_COLLECTION(nsClientRectList)
     123               0 :   NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(ClientRectList)
     124               0 : NS_INTERFACE_MAP_END
     125                 : 
     126               0 : NS_IMPL_CYCLE_COLLECTING_ADDREF(nsClientRectList)
     127               0 : NS_IMPL_CYCLE_COLLECTING_RELEASE(nsClientRectList)
     128                 : 
     129                 : 
     130                 : NS_IMETHODIMP    
     131               0 : nsClientRectList::GetLength(PRUint32* aLength)
     132                 : {
     133               0 :   *aLength = mArray.Count();
     134               0 :   return NS_OK;
     135                 : }
     136                 : 
     137                 : NS_IMETHODIMP    
     138               0 : nsClientRectList::Item(PRUint32 aIndex, nsIDOMClientRect** aReturn)
     139                 : {
     140               0 :   NS_IF_ADDREF(*aReturn = nsClientRectList::GetItemAt(aIndex));
     141               0 :   return NS_OK;
     142                 : }
     143                 : 
     144                 : nsIDOMClientRect*
     145               0 : nsClientRectList::GetItemAt(PRUint32 aIndex)
     146                 : {
     147               0 :   return mArray.SafeObjectAt(aIndex);
     148                 : }
     149                 : 
     150                 : JSObject*
     151               0 : nsClientRectList::WrapObject(JSContext *cx, XPCWrappedNativeScope *scope,
     152                 :                              bool *triedToWrap)
     153                 : {
     154                 :   return mozilla::dom::binding::ClientRectList::create(cx, scope, this,
     155               0 :                                                        triedToWrap);
     156                 : }
     157                 : 
     158                 : static double
     159               0 : RoundFloat(double aValue)
     160                 : {
     161               0 :   return floor(aValue + 0.5);
     162                 : }
     163                 : 
     164                 : void
     165               0 : nsClientRect::SetLayoutRect(const nsRect& aLayoutRect)
     166                 : {
     167               0 :   double scale = 65536.0;
     168                 :   // Round to the nearest 1/scale units. We choose scale so it can be represented
     169                 :   // exactly by machine floating point.
     170               0 :   double scaleInv = 1/scale;
     171               0 :   double t2pScaled = scale/nsPresContext::AppUnitsPerCSSPixel();
     172               0 :   double x = RoundFloat(aLayoutRect.x*t2pScaled)*scaleInv;
     173               0 :   double y = RoundFloat(aLayoutRect.y*t2pScaled)*scaleInv;
     174               0 :   SetRect(x, y, RoundFloat(aLayoutRect.XMost()*t2pScaled)*scaleInv - x,
     175               0 :           RoundFloat(aLayoutRect.YMost()*t2pScaled)*scaleInv - y);
     176            4392 : }

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