LCOV - app.info - layout/xul/base/src/nsScrollbarFrame.cpp

LCOV - code coverage report
| Current view: | directory - layout/xul/base/src - nsScrollbarFrame.cpp (source / functions) |  | Found | Hit | Coverage |
| Test: | app.info | Lines: | 49 | 0 | 0.0 %
| Date: | 2012-04-21 | Functions: | 14 | 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 "nsScrollbarFrame.h"
          46                 : #include "nsScrollbarButtonFrame.h"
          47                 : #include "nsGkAtoms.h"
          48                 : #include "nsIScrollableFrame.h"
          49                 : #include "nsIScrollbarMediator.h"
          50                 :
          51                 : //
          52                 : // NS_NewToolbarFrame
          53                 : //
          54                 : // Creates a new Toolbar frame and returns it
          55                 : //
          56                 : nsIFrame*
          57               0 : NS_NewScrollbarFrame (nsIPresShell* aPresShell, nsStyleContext* aContext)
          58                 : {
          59               0 :   return new (aPresShell) nsScrollbarFrame (aPresShell, aContext);
          60                 : }
          61                 :
          62               0 : NS_IMPL_FRAMEARENA_HELPERS(nsScrollbarFrame)
          63                 :
          64               0 : NS_QUERYFRAME_HEAD(nsScrollbarFrame)
          65               0 :   NS_QUERYFRAME_ENTRY(nsScrollbarFrame)
          66               0 : NS_QUERYFRAME_TAIL_INHERITING(nsBoxFrame)
          67                 :
          68                 : NS_IMETHODIMP
          69               0 : nsScrollbarFrame::Init(nsIContent* aContent,
          70                 :                        nsIFrame*   aParent,
          71                 :                        nsIFrame*   aPrevInFlow)
          72                 : {
          73               0 :   nsresult  rv = nsBoxFrame::Init(aContent, aParent, aPrevInFlow);
          74                 :
          75                 :   // We want to be a reflow root since we use reflows to move the
          76                 :   // slider.  Any reflow inside the scrollbar frame will be a reflow to
          77                 :   // move the slider and will thus not change anything outside of the
          78                 :   // scrollbar or change the size of the scrollbar frame.
          79               0 :   mState |= NS_FRAME_REFLOW_ROOT;
          80                 :
          81               0 :   return rv;
          82                 : }
          83                 :
          84                 : NS_IMETHODIMP
          85               0 : nsScrollbarFrame::Reflow(nsPresContext*          aPresContext,
          86                 :                          nsHTMLReflowMetrics&     aDesiredSize,
          87                 :                          const nsHTMLReflowState& aReflowState,
          88                 :                          nsReflowStatus&          aStatus)
          89                 : {
          90               0 :   nsresult rv = nsBoxFrame::Reflow(aPresContext, aDesiredSize, aReflowState, aStatus);
          91               0 :   NS_ENSURE_SUCCESS(rv, rv);
          92                 :
          93                 :   // nsGfxScrollFrame may have told us to shrink to nothing. If so, make sure our
          94                 :   // desired size agrees.
          95               0 :   if (aReflowState.availableWidth == 0) {
          96               0 :     aDesiredSize.width = 0;
          97                 :   }
          98               0 :   if (aReflowState.availableHeight == 0) {
          99               0 :     aDesiredSize.height = 0;
         100                 :   }
         101                 :
         102               0 :   return NS_OK;
         103                 : }
         104                 :
         105                 : nsIAtom*
         106               0 : nsScrollbarFrame::GetType() const
         107                 : {
         108               0 :   return nsGkAtoms::scrollbarFrame;
         109                 : }
         110                 :
         111                 : NS_IMETHODIMP
         112               0 : nsScrollbarFrame::AttributeChanged(PRInt32 aNameSpaceID,
         113                 :                                    nsIAtom* aAttribute,
         114                 :                                    PRInt32 aModType)
         115                 : {
         116                 :   nsresult rv = nsBoxFrame::AttributeChanged(aNameSpaceID, aAttribute,
         117               0 :                                              aModType);
         118                 :
         119                 :   // if the current position changes, notify any nsGfxScrollFrame
         120                 :   // parent we may have
         121               0 :   if (aAttribute != nsGkAtoms::curpos)
         122               0 :     return rv;
         123                 :
         124               0 :   nsIScrollableFrame* scrollable = do_QueryFrame(GetParent());
         125               0 :   if (!scrollable)
         126               0 :     return rv;
         127                 :
         128               0 :   scrollable->CurPosAttributeChanged(mContent);
         129               0 :   return rv;
         130                 : }
         131                 :
         132                 : NS_IMETHODIMP
         133               0 : nsScrollbarFrame::HandlePress(nsPresContext* aPresContext,
         134                 :                      nsGUIEvent*     aEvent,
         135                 :                      nsEventStatus*  aEventStatus)
         136                 : {
         137               0 :   return NS_OK;
         138                 : }
         139                 :
         140                 : NS_IMETHODIMP
         141               0 : nsScrollbarFrame::HandleMultiplePress(nsPresContext* aPresContext,
         142                 :                                       nsGUIEvent*     aEvent,
         143                 :                                       nsEventStatus*  aEventStatus,
         144                 :                                       bool aControlHeld)
         145                 : {
         146               0 :   return NS_OK;
         147                 : }
         148                 :
         149                 : NS_IMETHODIMP
         150               0 : nsScrollbarFrame::HandleDrag(nsPresContext* aPresContext,
         151                 :                               nsGUIEvent*     aEvent,
         152                 :                               nsEventStatus*  aEventStatus)
         153                 : {
         154               0 :   return NS_OK;
         155                 : }
         156                 :
         157                 : NS_IMETHODIMP
         158               0 : nsScrollbarFrame::HandleRelease(nsPresContext* aPresContext,
         159                 :                                  nsGUIEvent*     aEvent,
         160                 :                                  nsEventStatus*  aEventStatus)
         161                 : {
         162               0 :   return NS_OK;
         163                 : }
         164                 :
         165                 : void
         166               0 : nsScrollbarFrame::SetScrollbarMediatorContent(nsIContent* aMediator)
         167                 : {
         168               0 :   mScrollbarMediator = aMediator;
         169               0 : }
         170                 :
         171                 : nsIScrollbarMediator*
         172               0 : nsScrollbarFrame::GetScrollbarMediator()
         173                 : {
         174               0 :   if (!mScrollbarMediator)
         175               0 :     return nsnull;
         176               0 :   nsIFrame* f = mScrollbarMediator->GetPrimaryFrame();
         177                 :
         178                 :   // check if the frame is a scroll frame. If so, get the scrollable frame
         179                 :   // inside it.
         180               0 :   nsIScrollableFrame* scrollFrame = do_QueryFrame(f);
         181               0 :   if (scrollFrame) {
         182               0 :     f = scrollFrame->GetScrolledFrame();
         183                 :   }
         184                 :
         185               0 :   nsIScrollbarMediator* sbm = do_QueryFrame(f);
         186               0 :   return sbm;
         187                 : }

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