2017-10-27 17:33:53 +00:00
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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2012-05-21 11:12:37 +00:00
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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2011-11-19 17:53:52 +00:00
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2012-03-26 11:58:59 +00:00
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// Keep in (case-insensitive) order:
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2014-11-06 09:30:11 +00:00
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#include "nsContainerFrame.h"
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2011-11-19 17:53:52 +00:00
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#include "nsFrame.h"
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2012-03-26 11:58:59 +00:00
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#include "nsGkAtoms.h"
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#include "nsLiteralString.h"
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2017-08-30 13:14:46 +00:00
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#include "SVGObserverUtils.h"
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2011-11-19 17:53:52 +00:00
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#include "nsSVGFilters.h"
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2013-03-07 09:15:23 +00:00
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#include "mozilla/dom/SVGFEImageElement.h"
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2018-02-09 16:17:10 +00:00
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#include "mozilla/dom/MutationEventBinding.h"
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2011-11-19 17:53:52 +00:00
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using namespace mozilla;
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2013-03-07 09:15:23 +00:00
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using namespace mozilla::dom;
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2011-11-19 17:53:52 +00:00
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2017-04-30 15:30:08 +00:00
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class SVGFEImageFrame final : public nsFrame
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2011-11-19 17:53:52 +00:00
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{
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friend nsIFrame*
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2018-03-22 18:20:41 +00:00
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NS_NewSVGFEImageFrame(nsIPresShell* aPresShell, ComputedStyle* aStyle);
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2011-11-19 17:53:52 +00:00
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protected:
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2018-03-22 18:20:41 +00:00
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explicit SVGFEImageFrame(ComputedStyle* aStyle)
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: nsFrame(aStyle, kClassID)
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2012-07-16 00:42:50 +00:00
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{
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2013-07-12 07:13:07 +00:00
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AddStateBits(NS_FRAME_SVG_LAYOUT | NS_FRAME_IS_NONDISPLAY);
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2016-03-25 21:49:43 +00:00
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// This frame isn't actually displayed, but it contains an image and we want
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// to use the nsImageLoadingContent machinery for managing images, which
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// requires visibility tracking, so we enable visibility tracking and
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// forcibly mark it visible below.
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EnableVisibilityTracking();
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2012-07-16 00:42:50 +00:00
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}
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2011-11-19 17:53:52 +00:00
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public:
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2017-05-26 10:11:11 +00:00
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NS_DECL_FRAMEARENA_HELPERS(SVGFEImageFrame)
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2011-11-19 17:53:52 +00:00
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2014-05-24 22:20:40 +00:00
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virtual void Init(nsIContent* aContent,
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nsContainerFrame* aParent,
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2015-03-21 16:28:04 +00:00
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nsIFrame* aPrevInFlow) override;
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2017-11-07 00:20:33 +00:00
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virtual void DestroyFrom(nsIFrame* aDestructRoot, PostDestroyData& aPostDestroyData) override;
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2011-11-19 17:53:52 +00:00
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2015-03-21 16:28:04 +00:00
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virtual bool IsFrameOfType(uint32_t aFlags) const override
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2011-11-19 17:53:52 +00:00
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{
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2018-08-07 22:02:07 +00:00
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if (aFlags & eSupportsContainLayoutAndPaint) {
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return false;
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}
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2016-04-18 07:49:07 +00:00
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return nsFrame::IsFrameOfType(aFlags & ~(nsIFrame::eSVG));
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2011-11-19 17:53:52 +00:00
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}
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2014-01-05 23:31:14 +00:00
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#ifdef DEBUG_FRAME_DUMP
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2015-03-21 16:28:04 +00:00
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virtual nsresult GetFrameName(nsAString& aResult) const override
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2011-11-19 17:53:52 +00:00
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{
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return MakeFrameName(NS_LITERAL_STRING("SVGFEImage"), aResult);
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}
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#endif
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2014-02-18 07:47:48 +00:00
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virtual nsresult AttributeChanged(int32_t aNameSpaceID,
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2017-10-02 22:05:19 +00:00
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nsAtom* aAttribute,
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2015-03-21 16:28:04 +00:00
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int32_t aModType) override;
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2012-08-14 09:04:24 +00:00
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2016-09-12 05:19:07 +00:00
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void OnVisibilityChange(Visibility aNewVisibility,
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2017-02-13 17:07:40 +00:00
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const Maybe<OnNonvisible>& aNonvisibleAction = Nothing()) override;
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2016-03-25 21:49:43 +00:00
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2016-05-04 00:27:43 +00:00
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virtual bool ComputeCustomOverflow(nsOverflowAreas& aOverflowAreas) override {
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2012-08-14 09:04:24 +00:00
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// We don't maintain a visual overflow rect
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return false;
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}
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2011-11-19 17:53:52 +00:00
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};
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nsIFrame*
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2018-03-22 18:20:41 +00:00
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NS_NewSVGFEImageFrame(nsIPresShell* aPresShell, ComputedStyle* aStyle)
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2011-11-19 17:53:52 +00:00
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{
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2018-03-22 18:20:41 +00:00
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return new (aPresShell) SVGFEImageFrame(aStyle);
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2011-11-19 17:53:52 +00:00
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}
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NS_IMPL_FRAMEARENA_HELPERS(SVGFEImageFrame)
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/* virtual */ void
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2017-11-07 00:20:33 +00:00
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SVGFEImageFrame::DestroyFrom(nsIFrame* aDestructRoot, PostDestroyData& aPostDestroyData)
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2011-11-19 17:53:52 +00:00
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{
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2016-09-12 05:19:08 +00:00
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DecApproximateVisibleCount();
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2016-03-25 21:49:43 +00:00
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2011-11-19 17:53:52 +00:00
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nsCOMPtr<nsIImageLoadingContent> imageLoader =
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2016-04-18 07:49:07 +00:00
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do_QueryInterface(nsFrame::mContent);
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2011-11-19 17:53:52 +00:00
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if (imageLoader) {
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imageLoader->FrameDestroyed(this);
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}
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2017-11-07 00:20:33 +00:00
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nsFrame::DestroyFrom(aDestructRoot, aPostDestroyData);
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2011-11-19 17:53:52 +00:00
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}
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2013-03-20 01:47:48 +00:00
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void
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2014-05-24 22:20:40 +00:00
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SVGFEImageFrame::Init(nsIContent* aContent,
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nsContainerFrame* aParent,
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nsIFrame* aPrevInFlow)
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2011-11-19 17:53:52 +00:00
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{
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2015-03-03 11:08:59 +00:00
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NS_ASSERTION(aContent->IsSVGElement(nsGkAtoms::feImage),
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2011-11-19 17:53:52 +00:00
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"Trying to construct an SVGFEImageFrame for a "
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"content element that doesn't support the right interfaces");
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2016-04-18 07:49:07 +00:00
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nsFrame::Init(aContent, aParent, aPrevInFlow);
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2016-03-25 21:49:43 +00:00
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// We assume that feImage's are always visible.
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2017-03-22 05:32:48 +00:00
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// This call must happen before the FrameCreated. This is because the
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// primary frame pointer on our content node isn't set until after this
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// function ends, so there is no way for the resulting OnVisibilityChange
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// notification to get a frame. FrameCreated has a workaround for this in
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// that it passes our frame around so it can be accessed. OnVisibilityChange
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// doesn't have that workaround.
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2016-09-12 05:19:08 +00:00
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IncApproximateVisibleCount();
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2016-03-25 21:49:43 +00:00
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2011-11-19 17:53:52 +00:00
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nsCOMPtr<nsIImageLoadingContent> imageLoader =
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2016-04-18 07:49:07 +00:00
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do_QueryInterface(nsFrame::mContent);
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2011-11-19 17:53:52 +00:00
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if (imageLoader) {
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2013-04-26 19:58:15 +00:00
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imageLoader->FrameCreated(this);
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2011-11-19 17:53:52 +00:00
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}
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}
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2014-02-18 07:47:48 +00:00
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nsresult
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2012-08-22 15:56:38 +00:00
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SVGFEImageFrame::AttributeChanged(int32_t aNameSpaceID,
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2017-10-02 22:05:19 +00:00
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nsAtom* aAttribute,
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2012-08-22 15:56:38 +00:00
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int32_t aModType)
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2011-11-19 17:53:52 +00:00
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{
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2017-08-26 22:58:38 +00:00
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SVGFEImageElement* element = static_cast<SVGFEImageElement*>(GetContent());
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2011-11-19 17:53:52 +00:00
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if (element->AttributeAffectsRendering(aNameSpaceID, aAttribute)) {
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2017-04-30 15:30:08 +00:00
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MOZ_ASSERT(GetParent()->IsSVGFilterFrame(),
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2014-11-06 09:30:11 +00:00
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"Observers observe the filter, so that's what we must invalidate");
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2017-08-30 14:58:31 +00:00
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SVGObserverUtils::InvalidateDirectRenderingObservers(GetParent());
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2011-11-19 17:53:52 +00:00
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}
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2017-05-06 19:51:59 +00:00
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// Currently our SMIL implementation does not modify the DOM attributes. Once
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// we implement the SVG 2 SMIL behaviour this can be removed
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// SVGFEImageElement::AfterSetAttr's implementation will be sufficient.
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2018-06-25 21:20:54 +00:00
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if (aModType == MutationEvent_Binding::SMIL &&
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2017-05-06 19:51:59 +00:00
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aAttribute == nsGkAtoms::href &&
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(aNameSpaceID == kNameSpaceID_XLink ||
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aNameSpaceID == kNameSpaceID_None)) {
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2016-07-07 06:22:57 +00:00
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bool hrefIsSet =
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element->mStringAttributes[SVGFEImageElement::HREF].IsExplicitlySet() ||
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element->mStringAttributes[SVGFEImageElement::XLINK_HREF]
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.IsExplicitlySet();
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if (hrefIsSet) {
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2011-11-19 17:53:52 +00:00
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element->LoadSVGImage(true, true);
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} else {
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element->CancelImageRequests(true);
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}
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}
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2016-04-18 07:49:07 +00:00
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return nsFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType);
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2011-11-19 17:53:52 +00:00
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}
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2016-03-25 21:49:43 +00:00
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void
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2016-09-12 05:19:07 +00:00
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SVGFEImageFrame::OnVisibilityChange(Visibility aNewVisibility,
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2017-02-13 17:07:40 +00:00
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const Maybe<OnNonvisible>& aNonvisibleAction)
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2016-03-25 21:49:43 +00:00
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{
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nsCOMPtr<nsIImageLoadingContent> imageLoader =
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2016-04-18 07:49:07 +00:00
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do_QueryInterface(nsFrame::mContent);
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2016-03-25 21:49:43 +00:00
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if (!imageLoader) {
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MOZ_ASSERT_UNREACHABLE("Should have an nsIImageLoadingContent");
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2016-09-12 05:19:07 +00:00
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nsFrame::OnVisibilityChange(aNewVisibility, aNonvisibleAction);
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2016-03-25 21:49:43 +00:00
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return;
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}
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2016-09-12 05:19:07 +00:00
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imageLoader->OnVisibilityChange(aNewVisibility, aNonvisibleAction);
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2016-03-25 21:49:43 +00:00
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2016-09-12 05:19:07 +00:00
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nsFrame::OnVisibilityChange(aNewVisibility, aNonvisibleAction);
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2016-03-25 21:49:43 +00:00
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}
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