LCOV - app.info - layout/svg/base/src/nsSVGContainerFrame.cpp

LCOV - code coverage report
| Current view: | directory - layout/svg/base/src - nsSVGContainerFrame.cpp (source / functions) |  | Found | Hit | Coverage |
| Test: | app.info | Lines: | 96 | 0 | 0.0 %
| Date: | 2012-04-21 | Functions: | 22 | 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 the Mozilla SVG project.
          16                 :  *
          17                 :  * The Initial Developer of the Original Code is IBM Corporation.
          18                 :  * Portions created by the Initial Developer are Copyright (C) 2006
          19                 :  * the Initial Developer. All Rights Reserved.
          20                 :  *
          21                 :  * Contributor(s):
          22                 :  *
          23                 :  * Alternatively, the contents of this file may be used under the terms of
          24                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
          25                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
          26                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
          27                 :  * of those above. If you wish to allow use of your version of this file only
          28                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
          29                 :  * use your version of this file under the terms of the MPL, indicate your
          30                 :  * decision by deleting the provisions above and replace them with the notice
          31                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
          32                 :  * the provisions above, a recipient may use your version of this file under
          33                 :  * the terms of any one of the MPL, the GPL or the LGPL.
          34                 :  *
          35                 :  * ***** END LICENSE BLOCK ***** */
          36                 :
          37                 : #include "nsSVGContainerFrame.h"
          38                 : #include "nsSVGUtils.h"
          39                 : #include "nsSVGOuterSVGFrame.h"
          40                 :
          41               0 : NS_QUERYFRAME_HEAD(nsSVGContainerFrame)
          42               0 :   NS_QUERYFRAME_ENTRY(nsSVGContainerFrame)
          43               0 : NS_QUERYFRAME_TAIL_INHERITING(nsSVGContainerFrameBase)
          44                 :
          45               0 : NS_QUERYFRAME_HEAD(nsSVGDisplayContainerFrame)
          46               0 :   NS_QUERYFRAME_ENTRY(nsSVGDisplayContainerFrame)
          47               0 :   NS_QUERYFRAME_ENTRY(nsISVGChildFrame)
          48               0 : NS_QUERYFRAME_TAIL_INHERITING(nsSVGContainerFrame)
          49                 :
          50                 : nsIFrame*
          51               0 : NS_NewSVGContainerFrame(nsIPresShell* aPresShell,
          52                 :                         nsStyleContext* aContext)
          53                 : {
          54               0 :   nsIFrame *frame = new (aPresShell) nsSVGContainerFrame(aContext);
          55                 :   // If we were called directly, then the frame is for a <defs> or
          56                 :   // an unknown element type. In both cases we prevent the content
          57                 :   // from displaying directly.
          58               0 :   frame->AddStateBits(NS_STATE_SVG_NONDISPLAY_CHILD);
          59               0 :   return frame;
          60                 : }
          61                 :
          62               0 : NS_IMPL_FRAMEARENA_HELPERS(nsSVGContainerFrame)
          63               0 : NS_IMPL_FRAMEARENA_HELPERS(nsSVGDisplayContainerFrame)
          64                 :
          65                 : NS_IMETHODIMP
          66               0 : nsSVGContainerFrame::AppendFrames(ChildListID  aListID,
          67                 :                                   nsFrameList& aFrameList)
          68                 : {
          69               0 :   return InsertFrames(aListID, mFrames.LastChild(), aFrameList);
          70                 : }
          71                 :
          72                 : NS_IMETHODIMP
          73               0 : nsSVGContainerFrame::InsertFrames(ChildListID aListID,
          74                 :                                   nsIFrame* aPrevFrame,
          75                 :                                   nsFrameList& aFrameList)
          76                 : {
          77               0 :   NS_ASSERTION(aListID == kPrincipalList, "unexpected child list");
          78               0 :   NS_ASSERTION(!aPrevFrame || aPrevFrame->GetParent() == this,
          79                 :                "inserting after sibling frame with different parent");
          80                 :
          81               0 :   mFrames.InsertFrames(this, aPrevFrame, aFrameList);
          82                 :
          83               0 :   return NS_OK;
          84                 : }
          85                 :
          86                 : NS_IMETHODIMP
          87               0 : nsSVGContainerFrame::RemoveFrame(ChildListID aListID,
          88                 :                                  nsIFrame* aOldFrame)
          89                 : {
          90               0 :   NS_ASSERTION(aListID == kPrincipalList, "unexpected child list");
          91                 :
          92               0 :   mFrames.DestroyFrame(aOldFrame);
          93               0 :   return NS_OK;
          94                 : }
          95                 :
          96                 : NS_IMETHODIMP
          97               0 : nsSVGDisplayContainerFrame::Init(nsIContent* aContent,
          98                 :                                  nsIFrame* aParent,
          99                 :                                  nsIFrame* aPrevInFlow)
         100                 : {
         101               0 :   if (!(GetStateBits() & NS_STATE_IS_OUTER_SVG)) {
         102               0 :     AddStateBits(aParent->GetStateBits() &
         103                 :       (NS_STATE_SVG_NONDISPLAY_CHILD | NS_STATE_SVG_CLIPPATH_CHILD |
         104               0 :        NS_STATE_SVG_REDRAW_SUSPENDED));
         105                 :   }
         106               0 :   nsresult rv = nsSVGContainerFrame::Init(aContent, aParent, aPrevInFlow);
         107               0 :   return rv;
         108                 : }
         109                 :
         110                 : NS_IMETHODIMP
         111               0 : nsSVGDisplayContainerFrame::InsertFrames(ChildListID aListID,
         112                 :                                          nsIFrame* aPrevFrame,
         113                 :                                          nsFrameList& aFrameList)
         114                 : {
         115                 :   // memorize first old frame after insertion point
         116                 :   // XXXbz once again, this would work a lot better if the nsIFrame
         117                 :   // methods returned framelist iterators....
         118                 :   nsIFrame* firstOldFrame = aPrevFrame ?
         119               0 :     aPrevFrame->GetNextSibling() : GetChildList(aListID).FirstChild();
         120               0 :   nsIFrame* firstNewFrame = aFrameList.FirstChild();
         121                 :
         122                 :   // Insert the new frames
         123               0 :   nsSVGContainerFrame::InsertFrames(aListID, aPrevFrame, aFrameList);
         124                 :
         125                 :   // Call InitialUpdate on the new frames ONLY if our nsSVGOuterSVGFrame has had
         126                 :   // its initial reflow (our NS_FRAME_FIRST_REFLOW bit is clear) - bug 399863.
         127               0 :   if (!(GetStateBits() & NS_FRAME_FIRST_REFLOW)) {
         128               0 :     for (nsIFrame* kid = firstNewFrame; kid != firstOldFrame;
         129                 :          kid = kid->GetNextSibling()) {
         130               0 :       nsISVGChildFrame* SVGFrame = do_QueryFrame(kid);
         131               0 :       if (SVGFrame) {
         132               0 :         SVGFrame->InitialUpdate();
         133                 :       }
         134                 :     }
         135                 :   }
         136                 :
         137               0 :   return NS_OK;
         138                 : }
         139                 :
         140                 : NS_IMETHODIMP
         141               0 : nsSVGDisplayContainerFrame::RemoveFrame(ChildListID aListID,
         142                 :                                         nsIFrame* aOldFrame)
         143                 : {
         144                 :   // Force the invalidation before it's too late
         145               0 :   RemoveStateBits(NS_STATE_SVG_REDRAW_SUSPENDED);
         146                 :
         147               0 :   nsSVGUtils::InvalidateCoveredRegion(aOldFrame);
         148                 :
         149               0 :   nsresult rv = nsSVGContainerFrame::RemoveFrame(aListID, aOldFrame);
         150                 :
         151               0 :   if (!(GetStateBits() & (NS_STATE_SVG_NONDISPLAY_CHILD | NS_STATE_IS_OUTER_SVG))) {
         152               0 :     nsSVGUtils::NotifyAncestorsOfFilterRegionChange(this);
         153                 :   }
         154                 :
         155               0 :   return rv;
         156                 : }
         157                 :
         158                 : //----------------------------------------------------------------------
         159                 : // nsISVGChildFrame methods
         160                 :
         161                 : NS_IMETHODIMP
         162               0 : nsSVGDisplayContainerFrame::PaintSVG(nsRenderingContext* aContext,
         163                 :                                      const nsIntRect *aDirtyRect)
         164                 : {
         165               0 :   const nsStyleDisplay *display = mStyleContext->GetStyleDisplay();
         166               0 :   if (display->mOpacity == 0.0)
         167               0 :     return NS_OK;
         168                 :
         169               0 :   for (nsIFrame* kid = mFrames.FirstChild(); kid;
         170                 :        kid = kid->GetNextSibling()) {
         171               0 :     nsSVGUtils::PaintFrameWithEffects(aContext, aDirtyRect, kid);
         172                 :   }
         173                 :
         174               0 :   return NS_OK;
         175                 : }
         176                 :
         177                 : NS_IMETHODIMP_(nsIFrame*)
         178               0 : nsSVGDisplayContainerFrame::GetFrameForPoint(const nsPoint &aPoint)
         179                 : {
         180               0 :   return nsSVGUtils::HitTestChildren(this, aPoint);
         181                 : }
         182                 :
         183                 : NS_IMETHODIMP_(nsRect)
         184               0 : nsSVGDisplayContainerFrame::GetCoveredRegion()
         185                 : {
         186               0 :   return nsSVGUtils::GetCoveredRegion(mFrames);
         187                 : }
         188                 :
         189                 : NS_IMETHODIMP
         190               0 : nsSVGDisplayContainerFrame::UpdateCoveredRegion()
         191                 : {
         192               0 :   for (nsIFrame* kid = mFrames.FirstChild(); kid;
         193                 :        kid = kid->GetNextSibling()) {
         194               0 :     nsISVGChildFrame* SVGFrame = do_QueryFrame(kid);
         195               0 :     if (SVGFrame) {
         196               0 :       SVGFrame->UpdateCoveredRegion();
         197                 :     }
         198                 :   }
         199               0 :   return NS_OK;
         200                 : }
         201                 :
         202                 : NS_IMETHODIMP
         203               0 : nsSVGDisplayContainerFrame::InitialUpdate()
         204                 : {
         205               0 :   NS_ASSERTION(GetStateBits() & NS_FRAME_FIRST_REFLOW,
         206                 :                "Yikes! We've been called already! Hopefully we weren't called "
         207                 :                "before our nsSVGOuterSVGFrame's initial Reflow()!!!");
         208                 :
         209               0 :   for (nsIFrame* kid = mFrames.FirstChild(); kid;
         210                 :        kid = kid->GetNextSibling()) {
         211               0 :     nsISVGChildFrame* SVGFrame = do_QueryFrame(kid);
         212               0 :     if (SVGFrame) {
         213               0 :       SVGFrame->InitialUpdate();
         214                 :     }
         215                 :   }
         216                 :
         217               0 :   NS_ASSERTION(!(mState & NS_FRAME_IN_REFLOW),
         218                 :                "We don't actually participate in reflow");
         219                 :
         220                 :   // Do unset the various reflow bits, though.
         221                 :   mState &= ~(NS_FRAME_FIRST_REFLOW | NS_FRAME_IS_DIRTY |
         222               0 :               NS_FRAME_HAS_DIRTY_CHILDREN);
         223                 :
         224               0 :   return NS_OK;
         225                 : }
         226                 :
         227                 : void
         228               0 : nsSVGDisplayContainerFrame::NotifySVGChanged(PRUint32 aFlags)
         229                 : {
         230               0 :   NS_ABORT_IF_FALSE(!(aFlags & DO_NOT_NOTIFY_RENDERING_OBSERVERS) ||
         231                 :                     (GetStateBits() & NS_STATE_SVG_NONDISPLAY_CHILD),
         232                 :                     "Must be NS_STATE_SVG_NONDISPLAY_CHILD!");
         233                 :
         234               0 :   NS_ABORT_IF_FALSE(aFlags & (TRANSFORM_CHANGED | COORD_CONTEXT_CHANGED),
         235                 :                     "Invalidation logic may need adjusting");
         236                 :
         237               0 :   nsSVGUtils::NotifyChildrenOfSVGChange(this, aFlags);
         238               0 : }
         239                 :
         240                 : void
         241               0 : nsSVGDisplayContainerFrame::NotifyRedrawSuspended()
         242                 : {
         243               0 :   nsSVGUtils::NotifyRedrawSuspended(this);
         244               0 : }
         245                 :
         246                 : void
         247               0 : nsSVGDisplayContainerFrame::NotifyRedrawUnsuspended()
         248                 : {
         249               0 :   nsSVGUtils::NotifyRedrawUnsuspended(this);
         250               0 : }
         251                 :
         252                 : gfxRect
         253               0 : nsSVGDisplayContainerFrame::GetBBoxContribution(
         254                 :   const gfxMatrix &aToBBoxUserspace,
         255                 :   PRUint32 aFlags)
         256                 : {
         257               0 :   gfxRect bboxUnion(0.0, 0.0, 0.0, 0.0);
         258                 :
         259               0 :   nsIFrame* kid = mFrames.FirstChild();
         260               0 :   while (kid) {
         261               0 :     nsISVGChildFrame* svgKid = do_QueryFrame(kid);
         262               0 :     if (svgKid) {
         263               0 :       gfxMatrix transform = aToBBoxUserspace;
         264               0 :       nsIContent *content = kid->GetContent();
         265               0 :       if (content->IsSVG() && !content->IsNodeOfType(nsINode::eTEXT)) {
         266                 :         transform = static_cast<nsSVGElement*>(content)->
         267               0 :                       PrependLocalTransformsTo(aToBBoxUserspace);
         268                 :       }
         269                 :       bboxUnion =
         270               0 :         bboxUnion.Union(svgKid->GetBBoxContribution(transform, aFlags));
         271                 :     }
         272               0 :     kid = kid->GetNextSibling();
         273                 :   }
         274                 :
         275                 :   return bboxUnion;
         276                 : }

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