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/*
* Copyright (c) 2009, Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "third_party/blink/renderer/core/layout/svg/layout_svg_model_object.h"
#include "third_party/blink/renderer/core/layout/layout_view.h"
#include "third_party/blink/renderer/core/layout/svg/layout_svg_container.h"
#include "third_party/blink/renderer/core/layout/svg/layout_svg_root.h"
#include "third_party/blink/renderer/core/layout/svg/svg_layout_support.h"
#include "third_party/blink/renderer/core/layout/svg/svg_resources.h"
#include "third_party/blink/renderer/core/layout/svg/svg_resources_cache.h"
#include "third_party/blink/renderer/core/paint/paint_layer.h"
#include "third_party/blink/renderer/core/svg/svg_graphics_element.h"
namespace blink {
LayoutSVGModelObject::LayoutSVGModelObject(SVGElement* node)
: LayoutObject(node) {}
bool LayoutSVGModelObject::IsChildAllowed(LayoutObject* child,
const ComputedStyle&) const {
return child->IsSVG() && !(child->IsSVGInline() || child->IsSVGInlineText());
}
void LayoutSVGModelObject::MapLocalToAncestor(
const LayoutBoxModelObject* ancestor,
TransformState& transform_state,
MapCoordinatesFlags flags) const {
SVGLayoutSupport::MapLocalToAncestor(this, ancestor, transform_state, flags);
}
LayoutRect LayoutSVGModelObject::VisualRectInDocument() const {
return SVGLayoutSupport::VisualRectInAncestorSpace(*this, *View());
}
void LayoutSVGModelObject::MapAncestorToLocal(
const LayoutBoxModelObject* ancestor,
TransformState& transform_state,
MapCoordinatesFlags flags) const {
SVGLayoutSupport::MapAncestorToLocal(*this, ancestor, transform_state, flags);
}
const LayoutObject* LayoutSVGModelObject::PushMappingToContainer(
const LayoutBoxModelObject* ancestor_to_stop_at,
LayoutGeometryMap& geometry_map) const {
return SVGLayoutSupport::PushMappingToContainer(this, ancestor_to_stop_at,
geometry_map);
}
void LayoutSVGModelObject::AbsoluteRects(
Vector<IntRect>& rects,
const LayoutPoint& accumulated_offset) const {
IntRect rect = EnclosingIntRect(StrokeBoundingBox());
rect.MoveBy(RoundedIntPoint(accumulated_offset));
rects.push_back(rect);
}
void LayoutSVGModelObject::AbsoluteQuads(Vector<FloatQuad>& quads,
MapCoordinatesFlags mode) const {
quads.push_back(LocalToAbsoluteQuad(StrokeBoundingBox(), mode));
}
// This method is called from inside PaintOutline(), and since we call
// PaintOutline() while transformed to our coord system, return local coords.
void LayoutSVGModelObject::AddOutlineRects(Vector<LayoutRect>& rects,
const LayoutPoint&,
NGOutlineType) const {
rects.push_back(LayoutRect(VisualRectInLocalSVGCoordinates()));
}
FloatRect LayoutSVGModelObject::LocalBoundingBoxRectForAccessibility() const {
return StrokeBoundingBox();
}
void LayoutSVGModelObject::WillBeDestroyed() {
SVGResourcesCache::ClientDestroyed(*this);
SVGResources::ClearClipPathFilterMask(*GetElement(), Style());
LayoutObject::WillBeDestroyed();
}
void LayoutSVGModelObject::ComputeLayerHitTestRects(
LayerHitTestRects& rects,
TouchAction supported_fast_actions) const {
// Using just the rect for the SVGRoot is good enough for now.
SVGLayoutSupport::FindTreeRootObject(this)->ComputeLayerHitTestRects(
rects, supported_fast_actions);
}
void LayoutSVGModelObject::AddLayerHitTestRects(
LayerHitTestRects&,
const PaintLayer* current_layer,
const LayoutPoint& layer_offset,
TouchAction supported_fast_actions,
const LayoutRect& container_rect,
TouchAction container_whitelisted_touch_action) const {
// We don't walk into SVG trees at all - just report their container.
}
void LayoutSVGModelObject::StyleDidChange(StyleDifference diff,
const ComputedStyle* old_style) {
// Since layout depends on the bounds of the filter, we need to force layout
// when the filter changes. We also need to make sure paint will be
// performed, since if the filter changed we will not have cached result from
// before and thus will not flag paint in ClientLayoutChanged.
if (diff.FilterChanged()) {
SetNeedsLayoutAndFullPaintInvalidation(
layout_invalidation_reason::kStyleChange);
}
if (diff.NeedsFullLayout()) {
SetNeedsBoundariesUpdate();
if (diff.TransformChanged())
SetNeedsTransformUpdate();
}
if (IsBlendingAllowed()) {
bool has_blend_mode_changed =
(old_style && old_style->HasBlendMode()) == !StyleRef().HasBlendMode();
if (Parent() && has_blend_mode_changed) {
Parent()->DescendantIsolationRequirementsChanged(
StyleRef().HasBlendMode() ? kDescendantIsolationRequired
: kDescendantIsolationNeedsUpdate);
}
if (has_blend_mode_changed)
SetNeedsPaintPropertyUpdate();
}
LayoutObject::StyleDidChange(diff, old_style);
SVGResources::UpdateClipPathFilterMask(*GetElement(), old_style, StyleRef());
SVGResourcesCache::ClientStyleChanged(*this, diff, StyleRef());
}
} // namespace blink
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