LCOV - code coverage report
Current view: directory - layout/xul/base/src/tree/src - nsTreeColFrame.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 87 0 0.0 %
Date: 2012-06-02 Functions: 18 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                 :  *   Dave Hyatt <hyatt@mozilla.org> (Original Author)
      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 "nsCOMPtr.h"
      40                 : #include "nsTreeColFrame.h"
      41                 : #include "nsGkAtoms.h"
      42                 : #include "nsIContent.h"
      43                 : #include "nsStyleContext.h"
      44                 : #include "nsINameSpaceManager.h" 
      45                 : #include "nsIDocument.h"
      46                 : #include "nsIBoxObject.h"
      47                 : #include "nsTreeBoxObject.h"
      48                 : #include "nsIDOMElement.h"
      49                 : #include "nsITreeBoxObject.h"
      50                 : #include "nsITreeColumns.h"
      51                 : #include "nsIDOMXULTreeElement.h"
      52                 : #include "nsDisplayList.h"
      53                 : #include "nsTreeBodyFrame.h"
      54                 : 
      55                 : //
      56                 : // NS_NewTreeColFrame
      57                 : //
      58                 : // Creates a new col frame
      59                 : //
      60                 : nsIFrame*
      61               0 : NS_NewTreeColFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
      62                 : {
      63               0 :   return new (aPresShell) nsTreeColFrame(aPresShell, aContext);
      64                 : }
      65                 : 
      66               0 : NS_IMPL_FRAMEARENA_HELPERS(nsTreeColFrame)
      67                 : 
      68                 : // Destructor
      69               0 : nsTreeColFrame::~nsTreeColFrame()
      70                 : {
      71               0 : }
      72                 : 
      73                 : NS_IMETHODIMP
      74               0 : nsTreeColFrame::Init(nsIContent*      aContent,
      75                 :                      nsIFrame*        aParent,
      76                 :                      nsIFrame*        aPrevInFlow)
      77                 : {
      78               0 :   nsresult rv = nsBoxFrame::Init(aContent, aParent, aPrevInFlow);
      79               0 :   InvalidateColumns();
      80               0 :   return rv;
      81                 : }
      82                 : 
      83                 : void
      84               0 : nsTreeColFrame::DestroyFrom(nsIFrame* aDestructRoot)
      85                 : {
      86               0 :   InvalidateColumns(false);
      87               0 :   nsBoxFrame::DestroyFrom(aDestructRoot);
      88               0 : }
      89                 : 
      90                 : class nsDisplayXULTreeColSplitterTarget : public nsDisplayItem {
      91                 : public:
      92               0 :   nsDisplayXULTreeColSplitterTarget(nsDisplayListBuilder* aBuilder,
      93                 :                                     nsIFrame* aFrame) :
      94               0 :     nsDisplayItem(aBuilder, aFrame) {
      95               0 :     MOZ_COUNT_CTOR(nsDisplayXULTreeColSplitterTarget);
      96               0 :   }
      97                 : #ifdef NS_BUILD_REFCNT_LOGGING
      98               0 :   virtual ~nsDisplayXULTreeColSplitterTarget() {
      99               0 :     MOZ_COUNT_DTOR(nsDisplayXULTreeColSplitterTarget);
     100               0 :   }
     101                 : #endif
     102                 : 
     103                 :   virtual void HitTest(nsDisplayListBuilder* aBuilder, const nsRect& aRect,
     104                 :                        HitTestState* aState, nsTArray<nsIFrame*> *aOutFrames);
     105               0 :   NS_DISPLAY_DECL_NAME("XULTreeColSplitterTarget", TYPE_XUL_TREE_COL_SPLITTER_TARGET)
     106                 : };
     107                 : 
     108                 : void
     109               0 : nsDisplayXULTreeColSplitterTarget::HitTest(nsDisplayListBuilder* aBuilder, const nsRect& aRect,
     110                 :                                            HitTestState* aState, nsTArray<nsIFrame*> *aOutFrames)
     111                 : {
     112               0 :   nsRect rect = aRect - ToReferenceFrame();
     113                 :   // If we are in either in the first 4 pixels or the last 4 pixels, we're going to
     114                 :   // do something really strange.  Check for an adjacent splitter.
     115               0 :   bool left = false;
     116               0 :   bool right = false;
     117               0 :   if (mFrame->GetSize().width - nsPresContext::CSSPixelsToAppUnits(4) <= rect.XMost()) {
     118               0 :     right = true;
     119               0 :   } else if (nsPresContext::CSSPixelsToAppUnits(4) > rect.x) {
     120               0 :     left = true;
     121                 :   }
     122                 : 
     123                 :   // Swap left and right for RTL trees in order to find the correct splitter
     124               0 :   if (mFrame->GetStyleVisibility()->mDirection == NS_STYLE_DIRECTION_RTL) {
     125               0 :     bool tmp = left;
     126               0 :     left = right;
     127               0 :     right = tmp;
     128                 :   }
     129                 : 
     130               0 :   if (left || right) {
     131                 :     // We are a header. Look for the correct splitter.
     132                 :     nsIFrame* child;
     133               0 :     if (left)
     134               0 :       child = mFrame->GetPrevSibling();
     135                 :     else
     136               0 :       child = mFrame->GetNextSibling();
     137                 : 
     138               0 :     if (child && child->GetContent()->NodeInfo()->Equals(nsGkAtoms::splitter,
     139               0 :                                                          kNameSpaceID_XUL)) {
     140               0 :       aOutFrames->AppendElement(child);
     141                 :     }
     142                 :   }
     143                 : 
     144               0 : }
     145                 : 
     146                 : nsresult
     147               0 : nsTreeColFrame::BuildDisplayListForChildren(nsDisplayListBuilder*   aBuilder,
     148                 :                                             const nsRect&           aDirtyRect,
     149                 :                                             const nsDisplayListSet& aLists)
     150                 : {
     151               0 :   if (!aBuilder->IsForEventDelivery())
     152               0 :     return nsBoxFrame::BuildDisplayListForChildren(aBuilder, aDirtyRect, aLists);
     153                 :   
     154               0 :   nsDisplayListCollection set;
     155               0 :   nsresult rv = nsBoxFrame::BuildDisplayListForChildren(aBuilder, aDirtyRect, set);
     156               0 :   NS_ENSURE_SUCCESS(rv, rv);
     157                 :   
     158               0 :   rv = WrapListsInRedirector(aBuilder, set, aLists);
     159               0 :   NS_ENSURE_SUCCESS(rv, rv);
     160                 : 
     161                 :   return aLists.Content()->AppendNewToTop(new (aBuilder)
     162               0 :       nsDisplayXULTreeColSplitterTarget(aBuilder, this));
     163                 : }
     164                 : 
     165                 : NS_IMETHODIMP
     166               0 : nsTreeColFrame::AttributeChanged(PRInt32 aNameSpaceID,
     167                 :                                  nsIAtom* aAttribute,
     168                 :                                  PRInt32 aModType)
     169                 : {
     170                 :   nsresult rv = nsBoxFrame::AttributeChanged(aNameSpaceID, aAttribute,
     171               0 :                                              aModType);
     172                 : 
     173               0 :   if (aAttribute == nsGkAtoms::ordinal || aAttribute == nsGkAtoms::primary) {
     174               0 :     InvalidateColumns();
     175                 :   }
     176                 : 
     177               0 :   return rv;
     178                 : }
     179                 : 
     180                 : void
     181               0 : nsTreeColFrame::SetBounds(nsBoxLayoutState& aBoxLayoutState,
     182                 :                           const nsRect& aRect,
     183                 :                           bool aRemoveOverflowArea) {
     184               0 :   nscoord oldWidth = mRect.width;
     185                 : 
     186               0 :   nsBoxFrame::SetBounds(aBoxLayoutState, aRect, aRemoveOverflowArea);
     187               0 :   if (mRect.width != oldWidth) {
     188               0 :     nsITreeBoxObject* treeBoxObject = GetTreeBoxObject();
     189               0 :     if (treeBoxObject) {
     190               0 :       treeBoxObject->Invalidate();
     191                 :     }
     192                 :   }
     193               0 : }
     194                 : 
     195                 : nsITreeBoxObject*
     196               0 : nsTreeColFrame::GetTreeBoxObject()
     197                 : {
     198               0 :   nsITreeBoxObject* result = nsnull;
     199                 : 
     200               0 :   nsIContent* parent = mContent->GetParent();
     201               0 :   if (parent) {
     202               0 :     nsIContent* grandParent = parent->GetParent();
     203               0 :     nsCOMPtr<nsIDOMXULElement> treeElement = do_QueryInterface(grandParent);
     204               0 :     if (treeElement) {
     205               0 :       nsCOMPtr<nsIBoxObject> boxObject;
     206               0 :       treeElement->GetBoxObject(getter_AddRefs(boxObject));
     207                 : 
     208               0 :       nsCOMPtr<nsITreeBoxObject> treeBoxObject = do_QueryInterface(boxObject);
     209               0 :       result = treeBoxObject.get();
     210                 :     }
     211                 :   }
     212               0 :   return result;
     213                 : }
     214                 : 
     215                 : void
     216               0 : nsTreeColFrame::InvalidateColumns(bool aCanWalkFrameTree)
     217                 : {
     218               0 :   nsITreeBoxObject* treeBoxObject = GetTreeBoxObject();
     219               0 :   if (treeBoxObject) {
     220               0 :     nsCOMPtr<nsITreeColumns> columns;
     221                 : 
     222               0 :     if (aCanWalkFrameTree) {
     223               0 :       treeBoxObject->GetColumns(getter_AddRefs(columns));
     224                 :     } else {
     225               0 :       nsTreeBodyFrame* body = static_cast<nsTreeBoxObject*>(treeBoxObject)->GetCachedTreeBody();
     226               0 :       if (body) {
     227               0 :         body->GetColumns(getter_AddRefs(columns));
     228                 :       }
     229                 :     }
     230                 : 
     231               0 :     if (columns)
     232               0 :       columns->InvalidateColumns();
     233                 :   }
     234               0 : }

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