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/*
* Copyright (C) 2012, 2013 Adobe Systems Incorporated. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER "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 HOLDER 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.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_CANVAS_CANVAS2D_PATH_2D_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_CANVAS_CANVAS2D_PATH_2D_H_
#include <cmath>
#include "base/check.h"
#include "base/compiler_specific.h"
#include "base/notreached.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_union_path2d_string.h"
#include "third_party/blink/renderer/core/execution_context/execution_context.h"
#include "third_party/blink/renderer/core/geometry/dom_matrix_read_only.h"
#include "third_party/blink/renderer/core/svg/svg_path_utilities.h"
#include "third_party/blink/renderer/modules/canvas/canvas2d/canvas_path.h"
#include "third_party/blink/renderer/modules/canvas/canvas2d/identifiability_study_helper.h"
#include "third_party/blink/renderer/modules/modules_export.h"
#include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
#include "third_party/blink/renderer/platform/geometry/path.h"
#include "third_party/blink/renderer/platform/geometry/path_builder.h"
#include "third_party/blink/renderer/platform/heap/forward.h" // IWYU pragma: keep (blink::Visitor)
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/heap/member.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
// IWYU pragma: no_include "third_party/blink/renderer/platform/heap/visitor.h"
namespace blink {
class DOMMatrix2DInit;
class ExceptionState;
class ScriptState;
class MODULES_EXPORT Path2D final : public ScriptWrappable, public CanvasPath {
DEFINE_WRAPPERTYPEINFO();
public:
static Path2D* Create(ScriptState* script_state,
const V8UnionPath2DOrString* path) {
DCHECK(path);
switch (path->GetContentType()) {
case V8UnionPath2DOrString::ContentType::kPath2D:
return MakeGarbageCollected<Path2D>(script_state, path->GetAsPath2D());
case V8UnionPath2DOrString::ContentType::kString:
return MakeGarbageCollected<Path2D>(script_state, path->GetAsString());
}
NOTREACHED();
}
static Path2D* Create(ScriptState* script_state) {
return MakeGarbageCollected<Path2D>(script_state);
}
static Path2D* Create(ScriptState* script_state, const Path& path) {
return MakeGarbageCollected<Path2D>(script_state, path);
}
void addPath(Path2D* path,
DOMMatrix2DInit* transform,
ExceptionState& exception_state) {
DOMMatrixReadOnly* matrix =
DOMMatrixReadOnly::fromMatrix2D(transform, exception_state);
if (!matrix || !std::isfinite(matrix->m11()) ||
!std::isfinite(matrix->m12()) || !std::isfinite(matrix->m21()) ||
!std::isfinite(matrix->m22()) || !std::isfinite(matrix->m41()) ||
!std::isfinite(matrix->m42()))
return;
GetModifiablePath().AddPath(path->GetPath(), matrix->GetAffineTransform());
if (identifiability_study_helper_.ShouldUpdateBuilder()) [[unlikely]] {
identifiability_study_helper_.UpdateBuilder(CanvasOps::kAddPath,
path->GetIdentifiableToken());
}
}
void Trace(Visitor*) const override;
ExecutionContext* GetTopExecutionContext() const override {
return context_.Get();
}
explicit Path2D(ScriptState* script_state)
: context_(ExecutionContext::From(script_state)) {
identifiability_study_helper_.SetExecutionContext(context_.Get());
GetModifiablePath().SetIsVolatile(false);
}
Path2D(ScriptState* script_state, const Path& path)
: CanvasPath(path), context_(ExecutionContext::From(script_state)) {
identifiability_study_helper_.SetExecutionContext(context_.Get());
GetModifiablePath().SetIsVolatile(false);
}
Path2D(ScriptState* script_state, Path2D* path)
: Path2D(script_state, path->GetPath()) {}
Path2D(ScriptState* script_state, const String& path_data)
: context_(ExecutionContext::From(script_state)) {
identifiability_study_helper_.SetExecutionContext(context_.Get());
GetModifiablePath() = PathBuilder(BuildPathFromString(path_data));
GetModifiablePath().SetIsVolatile(false);
}
Path2D(const Path2D&) = delete;
Path2D& operator=(const Path2D&) = delete;
~Path2D() override = default;
private:
Member<ExecutionContext> context_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_CANVAS_CANVAS2D_PATH_2D_H_
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