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https://gitlab.winehq.org/wine/wine-gecko.git
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302 lines
9.2 KiB
C++
302 lines
9.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the Mozilla SVG project.
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*
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* The Initial Developer of the Original Code is IBM Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2006
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsSVGContainerFrame.h"
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#include "nsSVGUtils.h"
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#include "nsSVGOuterSVGFrame.h"
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NS_QUERYFRAME_HEAD(nsSVGContainerFrame)
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NS_QUERYFRAME_ENTRY(nsSVGContainerFrame)
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NS_QUERYFRAME_TAIL_INHERITING(nsSVGContainerFrameBase)
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NS_QUERYFRAME_HEAD(nsSVGDisplayContainerFrame)
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NS_QUERYFRAME_ENTRY(nsSVGDisplayContainerFrame)
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NS_QUERYFRAME_ENTRY(nsISVGChildFrame)
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NS_QUERYFRAME_TAIL_INHERITING(nsSVGContainerFrame)
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nsIFrame*
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NS_NewSVGContainerFrame(nsIPresShell* aPresShell,
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nsStyleContext* aContext)
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{
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return new (aPresShell) nsSVGContainerFrame(aContext);
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}
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NS_IMPL_FRAMEARENA_HELPERS(nsSVGContainerFrame)
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NS_IMPL_FRAMEARENA_HELPERS(nsSVGDisplayContainerFrame)
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NS_IMETHODIMP
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nsSVGContainerFrame::AppendFrames(nsIAtom* aListName,
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nsFrameList& aFrameList)
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{
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return InsertFrames(aListName, mFrames.LastChild(), aFrameList);
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}
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NS_IMETHODIMP
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nsSVGContainerFrame::InsertFrames(nsIAtom* aListName,
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nsIFrame* aPrevFrame,
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nsFrameList& aFrameList)
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{
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NS_ASSERTION(!aListName, "unexpected child list");
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NS_ASSERTION(!aPrevFrame || aPrevFrame->GetParent() == this,
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"inserting after sibling frame with different parent");
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mFrames.InsertFrames(this, aPrevFrame, aFrameList);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsSVGContainerFrame::RemoveFrame(nsIAtom* aListName,
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nsIFrame* aOldFrame)
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{
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NS_ASSERTION(!aListName, "unexpected child list");
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mFrames.DestroyFrame(aOldFrame);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsSVGContainerFrame::Init(nsIContent* aContent,
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nsIFrame* aParent,
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nsIFrame* aPrevInFlow)
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{
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AddStateBits(NS_STATE_SVG_NONDISPLAY_CHILD | NS_STATE_SVG_PROPAGATE_TRANSFORM);
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nsresult rv = nsSVGContainerFrameBase::Init(aContent, aParent, aPrevInFlow);
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return rv;
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}
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NS_IMETHODIMP
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nsSVGDisplayContainerFrame::Init(nsIContent* aContent,
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nsIFrame* aParent,
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nsIFrame* aPrevInFlow)
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{
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AddStateBits(NS_STATE_SVG_PROPAGATE_TRANSFORM);
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if (!(GetStateBits() & NS_STATE_IS_OUTER_SVG)) {
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AddStateBits(aParent->GetStateBits() & NS_STATE_SVG_NONDISPLAY_CHILD);
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}
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nsresult rv = nsSVGContainerFrameBase::Init(aContent, aParent, aPrevInFlow);
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return rv;
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}
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NS_IMETHODIMP
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nsSVGDisplayContainerFrame::InsertFrames(nsIAtom* aListName,
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nsIFrame* aPrevFrame,
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nsFrameList& aFrameList)
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{
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// memorize first old frame after insertion point
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// XXXbz once again, this would work a lot better if the nsIFrame
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// methods returned framelist iterators....
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nsIFrame* firstOldFrame = aPrevFrame ?
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aPrevFrame->GetNextSibling() : GetChildList(aListName).FirstChild();
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nsIFrame* firstNewFrame = aFrameList.FirstChild();
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// Insert the new frames
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nsSVGContainerFrame::InsertFrames(aListName, aPrevFrame, aFrameList);
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// Call InitialUpdate on the new frames ONLY if our nsSVGOuterSVGFrame has had
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// its initial reflow (our NS_FRAME_FIRST_REFLOW bit is clear) - bug 399863.
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if (!(GetStateBits() & NS_FRAME_FIRST_REFLOW)) {
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for (nsIFrame* kid = firstNewFrame; kid != firstOldFrame;
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kid = kid->GetNextSibling()) {
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nsISVGChildFrame* SVGFrame = do_QueryFrame(kid);
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if (SVGFrame) {
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SVGFrame->InitialUpdate();
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}
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}
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsSVGDisplayContainerFrame::RemoveFrame(nsIAtom* aListName,
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nsIFrame* aOldFrame)
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{
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nsSVGUtils::InvalidateCoveredRegion(aOldFrame);
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nsresult rv = nsSVGContainerFrame::RemoveFrame(aListName, aOldFrame);
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if (!(GetStateBits() & NS_STATE_SVG_NONDISPLAY_CHILD)) {
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nsSVGUtils::NotifyAncestorsOfFilterRegionChange(this);
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}
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return rv;
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}
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//----------------------------------------------------------------------
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// nsISVGChildFrame methods
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NS_IMETHODIMP
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nsSVGDisplayContainerFrame::PaintSVG(nsSVGRenderState* aContext,
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const nsIntRect *aDirtyRect)
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{
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const nsStyleDisplay *display = mStyleContext->GetStyleDisplay();
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if (display->mOpacity == 0.0)
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return NS_OK;
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for (nsIFrame* kid = mFrames.FirstChild(); kid;
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kid = kid->GetNextSibling()) {
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nsSVGUtils::PaintFrameWithEffects(aContext, aDirtyRect, kid);
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}
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return NS_OK;
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}
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NS_IMETHODIMP_(nsIFrame*)
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nsSVGDisplayContainerFrame::GetFrameForPoint(const nsPoint &aPoint)
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{
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return nsSVGUtils::HitTestChildren(this, aPoint);
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}
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NS_IMETHODIMP_(nsRect)
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nsSVGDisplayContainerFrame::GetCoveredRegion()
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{
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return nsSVGUtils::GetCoveredRegion(mFrames);
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}
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NS_IMETHODIMP
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nsSVGDisplayContainerFrame::UpdateCoveredRegion()
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{
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for (nsIFrame* kid = mFrames.FirstChild(); kid;
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kid = kid->GetNextSibling()) {
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nsISVGChildFrame* SVGFrame = do_QueryFrame(kid);
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if (SVGFrame) {
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SVGFrame->UpdateCoveredRegion();
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}
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsSVGDisplayContainerFrame::InitialUpdate()
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{
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NS_ASSERTION(GetStateBits() & NS_FRAME_FIRST_REFLOW,
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"Yikes! We've been called already! Hopefully we weren't called "
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"before our nsSVGOuterSVGFrame's initial Reflow()!!!");
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for (nsIFrame* kid = mFrames.FirstChild(); kid;
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kid = kid->GetNextSibling()) {
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nsISVGChildFrame* SVGFrame = do_QueryFrame(kid);
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if (SVGFrame) {
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SVGFrame->InitialUpdate();
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}
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}
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NS_ASSERTION(!(mState & NS_FRAME_IN_REFLOW),
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"We don't actually participate in reflow");
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// Do unset the various reflow bits, though.
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mState &= ~(NS_FRAME_FIRST_REFLOW | NS_FRAME_IS_DIRTY |
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NS_FRAME_HAS_DIRTY_CHILDREN);
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return NS_OK;
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}
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void
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nsSVGDisplayContainerFrame::NotifySVGChanged(PRUint32 aFlags)
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{
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NS_ASSERTION(aFlags & (TRANSFORM_CHANGED | COORD_CONTEXT_CHANGED),
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"Invalidation logic may need adjusting");
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nsSVGUtils::NotifyChildrenOfSVGChange(this, aFlags);
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}
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NS_IMETHODIMP
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nsSVGDisplayContainerFrame::NotifyRedrawSuspended()
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{
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for (nsIFrame* kid = mFrames.FirstChild(); kid;
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kid = kid->GetNextSibling()) {
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nsISVGChildFrame* SVGFrame = do_QueryFrame(kid);
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if (SVGFrame) {
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SVGFrame->NotifyRedrawSuspended();
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}
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsSVGDisplayContainerFrame::NotifyRedrawUnsuspended()
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{
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for (nsIFrame* kid = mFrames.FirstChild(); kid;
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kid = kid->GetNextSibling()) {
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nsISVGChildFrame* SVGFrame = do_QueryFrame(kid);
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if (SVGFrame) {
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SVGFrame->NotifyRedrawUnsuspended();
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}
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}
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return NS_OK;
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}
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gfxRect
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nsSVGDisplayContainerFrame::GetBBoxContribution(const gfxMatrix &aToBBoxUserspace)
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{
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gfxRect bboxUnion(0.0, 0.0, 0.0, 0.0);
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nsIFrame* kid = mFrames.FirstChild();
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while (kid) {
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nsISVGChildFrame* svgKid = do_QueryFrame(kid);
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if (svgKid) {
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gfxMatrix transform = aToBBoxUserspace;
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nsIContent *content = kid->GetContent();
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if (content->IsSVG() && !content->IsNodeOfType(nsINode::eTEXT)) {
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transform = static_cast<nsSVGElement*>(content)->
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PrependLocalTransformTo(aToBBoxUserspace);
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}
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bboxUnion = bboxUnion.Union(svgKid->GetBBoxContribution(transform));
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}
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kid = kid->GetNextSibling();
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}
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return bboxUnion;
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}
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NS_IMETHODIMP
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nsSVGDisplayContainerFrame::SetMatrixPropagation(PRBool aPropagate)
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{
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if (aPropagate) {
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AddStateBits(NS_STATE_SVG_PROPAGATE_TRANSFORM);
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} else {
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RemoveStateBits(NS_STATE_SVG_PROPAGATE_TRANSFORM);
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}
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return NS_OK;
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}
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PRBool
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nsSVGDisplayContainerFrame::GetMatrixPropagation()
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{
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return (GetStateBits() & NS_STATE_SVG_PROPAGATE_TRANSFORM) != 0;
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}
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