blob: 6ecdb98ff99339b7f1bcff86d0c4efd94e791435 [file] [log] [blame]
/*
* Copyright (C) 2017-2022 Apple 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:
* 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 APPLE INC. ``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 APPLE INC. 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 "config.h"
#include "InspectorCanvas.h"
#include "AffineTransform.h"
#include "CSSStyleImageValue.h"
#include "CachedImage.h"
#include "CanvasBase.h"
#include "CanvasGradient.h"
#include "CanvasPattern.h"
#include "CanvasRenderingContext2D.h"
#include "ColorSerialization.h"
#include "DOMMatrix2DInit.h"
#include "DOMPointInit.h"
#include "Document.h"
#include "Element.h"
#include "FloatPoint.h"
#include "Gradient.h"
#include "HTMLCanvasElement.h"
#include "HTMLImageElement.h"
#include "HTMLVideoElement.h"
#include "Image.h"
#include "ImageBitmap.h"
#include "ImageBitmapRenderingContext.h"
#include "ImageBuffer.h"
#include "ImageData.h"
#include "InspectorCanvasAgent.h"
#include "InspectorDOMAgent.h"
#include "InspectorInstrumentation.h"
#include "JSCanvasDirection.h"
#include "JSCanvasFillRule.h"
#include "JSCanvasLineCap.h"
#include "JSCanvasLineJoin.h"
#include "JSCanvasRenderingContext2D.h"
#include "JSCanvasTextAlign.h"
#include "JSCanvasTextBaseline.h"
#include "JSExecState.h"
#include "JSImageBitmapRenderingContext.h"
#include "JSImageSmoothingQuality.h"
#include "JSWebGL2RenderingContext.h"
#include "JSWebGLRenderingContext.h"
#include "OffscreenCanvas.h"
#include "Path2D.h"
#include "Pattern.h"
#include "RecordingSwizzleType.h"
#include "SVGPathUtilities.h"
#include "StringAdaptors.h"
#include "WebGL2RenderingContext.h"
#include "WebGLBuffer.h"
#include "WebGLFramebuffer.h"
#include "WebGLProgram.h"
#include "WebGLQuery.h"
#include "WebGLRenderbuffer.h"
#include "WebGLRenderingContext.h"
#include "WebGLRenderingContextBase.h"
#include "WebGLSampler.h"
#include "WebGLShader.h"
#include "WebGLSync.h"
#include "WebGLTexture.h"
#include "WebGLTransformFeedback.h"
#include "WebGLUniformLocation.h"
#include "WebGLVertexArrayObject.h"
#include <JavaScriptCore/ArrayBuffer.h>
#include <JavaScriptCore/ArrayBufferView.h>
#include <JavaScriptCore/IdentifiersFactory.h>
#include <JavaScriptCore/ScriptCallStackFactory.h>
#include <JavaScriptCore/TypedArrays.h>
#include <variant>
#include <wtf/Function.h>
#include <wtf/RefPtr.h>
#include <wtf/Vector.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
using namespace Inspector;
Ref<InspectorCanvas> InspectorCanvas::create(CanvasRenderingContext& context)
{
return adoptRef(*new InspectorCanvas(context));
}
InspectorCanvas::InspectorCanvas(CanvasRenderingContext& context)
: m_identifier("canvas:" + IdentifiersFactory::createIdentifier())
, m_context(context)
{
}
CanvasRenderingContext* InspectorCanvas::canvasContext() const
{
if (auto* contextWrapper = std::get_if<std::reference_wrapper<CanvasRenderingContext>>(&m_context))
return &contextWrapper->get();
return nullptr;
}
HTMLCanvasElement* InspectorCanvas::canvasElement() const
{
return WTF::switchOn(m_context,
[] (std::reference_wrapper<CanvasRenderingContext> contextWrapper) -> HTMLCanvasElement* {
auto& context = contextWrapper.get();
if (is<HTMLCanvasElement>(context.canvasBase()))
return &downcast<HTMLCanvasElement>(context.canvasBase());
return nullptr;
}, [] (std::monostate) -> HTMLCanvasElement* {
ASSERT_NOT_REACHED();
return nullptr;
}
);
return nullptr;
}
ScriptExecutionContext* InspectorCanvas::scriptExecutionContext() const
{
return WTF::switchOn(m_context,
[] (std::reference_wrapper<CanvasRenderingContext> contextWrapper) {
auto& context = contextWrapper.get();
return context.canvasBase().scriptExecutionContext();
}, [] (std::monostate) -> ScriptExecutionContext* {
ASSERT_NOT_REACHED();
return nullptr;
}
);
}
JSC::JSValue InspectorCanvas::resolveContext(JSC::JSGlobalObject* exec) const
{
JSC::JSLockHolder lock(exec);
auto* globalObject = deprecatedGlobalObjectForPrototype(exec);
return WTF::switchOn(m_context,
[&] (std::reference_wrapper<CanvasRenderingContext> contextWrapper) {
auto& context = contextWrapper.get();
if (is<CanvasRenderingContext2D>(context))
return toJS(exec, globalObject, downcast<CanvasRenderingContext2D>(context));
if (is<ImageBitmapRenderingContext>(context))
return toJS(exec, globalObject, downcast<ImageBitmapRenderingContext>(context));
#if ENABLE(WEBGL)
if (is<WebGLRenderingContext>(context))
return toJS(exec, globalObject, downcast<WebGLRenderingContext>(context));
#endif
#if ENABLE(WEBGL2)
if (is<WebGL2RenderingContext>(context))
return toJS(exec, globalObject, downcast<WebGL2RenderingContext>(context));
#endif
return JSC::JSValue();
},
[] (std::monostate) {
ASSERT_NOT_REACHED();
return JSC::JSValue();
}
);
}
HashSet<Element*> InspectorCanvas::clientNodes() const
{
return WTF::switchOn(m_context,
[] (std::reference_wrapper<CanvasRenderingContext> contextWrapper) {
auto& context = contextWrapper.get();
return context.canvasBase().cssCanvasClients();
},
[] (std::monostate) {
ASSERT_NOT_REACHED();
return HashSet<Element*>();
}
);
}
void InspectorCanvas::canvasChanged()
{
auto* context = canvasContext();
ASSERT(context);
if (!context->hasActiveInspectorCanvasCallTracer())
return;
// Since 2D contexts are able to be fully reproduced in the frontend, we don't need snapshots.
if (is<CanvasRenderingContext2D>(context))
return;
m_contentChanged = true;
}
void InspectorCanvas::resetRecordingData()
{
m_initialState = nullptr;
m_frames = nullptr;
m_currentActions = nullptr;
m_serializedDuplicateData = nullptr;
m_indexedDuplicateData.clear();
m_recordingName = { };
m_bufferLimit = 100 * 1024 * 1024;
m_bufferUsed = 0;
m_frameCount = std::nullopt;
m_framesCaptured = 0;
m_contentChanged = false;
auto* context = canvasContext();
ASSERT(context);
// FIXME: <https://webkit.org/b/201651> Web Inspector: Canvas: support canvas recordings for WebGPUDevice
context->setHasActiveInspectorCanvasCallTracer(false);
}
bool InspectorCanvas::hasRecordingData() const
{
return m_bufferUsed > 0;
}
bool InspectorCanvas::currentFrameHasData() const
{
return !!m_frames;
}
template<typename T> static Ref<JSON::ArrayOf<JSON::Value>> buildArrayForVector(const Vector<T>& vector)
{
auto array = JSON::ArrayOf<JSON::Value>::create();
for (auto& item : vector)
array->addItem(item);
return array;
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(CanvasDirection argument)
{
return {{ valueIndexForData(convertEnumerationToString(argument)), RecordingSwizzleType::String }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(CanvasFillRule argument)
{
return {{ valueIndexForData(convertEnumerationToString(argument)), RecordingSwizzleType::String }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(CanvasImageSource& argument)
{
return WTF::switchOn(argument, [&] (auto& value) {
return processArgument(value);
});
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(CanvasLineCap argument)
{
return {{ valueIndexForData(convertEnumerationToString(argument)), RecordingSwizzleType::String }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(CanvasLineJoin argument)
{
return {{ valueIndexForData(convertEnumerationToString(argument)), RecordingSwizzleType::String }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(CanvasRenderingContext2DBase::StyleVariant& argument)
{
return WTF::switchOn(argument, [&] (auto& value) {
return processArgument(value);
});
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(CanvasTextAlign argument)
{
return {{ valueIndexForData(convertEnumerationToString(argument)), RecordingSwizzleType::String }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(CanvasTextBaseline argument)
{
return {{ valueIndexForData(convertEnumerationToString(argument)), RecordingSwizzleType::String }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(DOMMatrix2DInit& argument)
{
auto array = JSON::ArrayOf<double>::create();
array->addItem(argument.a.value_or(1));
array->addItem(argument.b.value_or(0));
array->addItem(argument.c.value_or(0));
array->addItem(argument.d.value_or(1));
array->addItem(argument.e.value_or(0));
array->addItem(argument.f.value_or(0));
return {{ WTFMove(array), RecordingSwizzleType::DOMMatrix }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(Element* argument)
{
if (!argument)
return std::nullopt;
// Elements are not serializable, so add a string as a placeholder since the actual
// element cannot be reconstructed in the frontend.
return {{ valueIndexForData("Element"_s), RecordingSwizzleType::None }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(HTMLImageElement* argument)
{
if (!argument)
return std::nullopt;
return {{ valueIndexForData(argument), RecordingSwizzleType::Image }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(ImageBitmap* argument)
{
if (!argument)
return std::nullopt;
return {{ valueIndexForData(argument), RecordingSwizzleType::ImageBitmap }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(ImageData* argument)
{
if (!argument)
return std::nullopt;
return {{ valueIndexForData(argument), RecordingSwizzleType::ImageData }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(ImageDataSettings&)
{
// FIXME: Implement.
return std::nullopt;
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(ImageSmoothingQuality argument)
{
return {{ valueIndexForData(convertEnumerationToString(argument)), RecordingSwizzleType::String }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(std::optional<double>& argument)
{
if (!argument)
return std::nullopt;
return {{ JSON::Value::create(*argument), RecordingSwizzleType::Number }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(std::optional<float>& argument)
{
if (!argument)
return std::nullopt;
return {{ JSON::Value::create(static_cast<double>(*argument)), RecordingSwizzleType::Number }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(Path2D* argument)
{
if (!argument)
return std::nullopt;
return {{ valueIndexForData(buildStringFromPath(argument->path())), RecordingSwizzleType::Path2D }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(RefPtr<CanvasGradient>& argument)
{
if (!argument)
return std::nullopt;
return {{ valueIndexForData(argument), RecordingSwizzleType::CanvasGradient }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(RefPtr<CanvasPattern>& argument)
{
if (!argument)
return std::nullopt;
return {{ valueIndexForData(argument), RecordingSwizzleType::CanvasPattern }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(RefPtr<HTMLCanvasElement>& argument)
{
if (!argument)
return std::nullopt;
return {{ valueIndexForData(argument), RecordingSwizzleType::Image }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(RefPtr<HTMLImageElement>& argument)
{
return processArgument(argument.get());
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(RefPtr<ImageBitmap>& argument)
{
return processArgument(argument.get());
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(RefPtr<ImageData>& argument)
{
return processArgument(argument.get());
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(RefPtr<JSC::ArrayBuffer>& argument)
{
if (!argument)
return std::nullopt;
return {{ JSON::Value::create(0), RecordingSwizzleType::TypedArray }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(RefPtr<JSC::ArrayBufferView>& argument)
{
if (!argument)
return std::nullopt;
return {{ JSON::Value::create(0), RecordingSwizzleType::TypedArray }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(RefPtr<JSC::Float32Array>& argument)
{
if (!argument)
return std::nullopt;
return {{ JSON::Value::create(0), RecordingSwizzleType::TypedArray }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(RefPtr<JSC::Int32Array>& argument)
{
if (!argument)
return std::nullopt;
return {{ JSON::Value::create(0), RecordingSwizzleType::TypedArray }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(RefPtr<JSC::Uint32Array>& argument)
{
if (!argument)
return std::nullopt;
return {{ JSON::Value::create(0), RecordingSwizzleType::TypedArray }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(String& argument)
{
return {{ valueIndexForData(argument), RecordingSwizzleType::String }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(Vector<String>& argument)
{
auto deduplicated = argument.map([&] (const String& item) {
return indexForData(item);
});
return {{ buildArrayForVector(WTFMove(deduplicated)), RecordingSwizzleType::String }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(Vector<double>& argument)
{
return {{ buildArrayForVector(argument), RecordingSwizzleType::Array }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(Vector<float>& argument)
{
return {{ buildArrayForVector(argument), RecordingSwizzleType::Array }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(Vector<uint32_t>& argument)
{
auto mapped = argument.map([&] (uint32_t item) {
return static_cast<double>(item);
});
return {{ buildArrayForVector(mapped), RecordingSwizzleType::Array }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(Vector<int32_t>& argument)
{
auto mapped = argument.map([&] (int32_t item) {
return static_cast<double>(item);
});
return {{ buildArrayForVector(mapped), RecordingSwizzleType::Array }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(CanvasPath::RadiusVariant& argument)
{
return WTF::switchOn(argument,
[](DOMPointInit) -> std::optional<InspectorCanvasCallTracer::ProcessedArgument> {
// FIXME We'd likely want to either create a new RecordingSwizzleType::DOMPointInit or RecordingSwizzleType::Object to avoid
// encoding the same data multiple times. See https://webkit.org/b/233255
return std::nullopt;
},
[](double radius) -> std::optional<InspectorCanvasCallTracer::ProcessedArgument> {
return { { JSON::Value::create(radius), RecordingSwizzleType::Number } };
});
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(WTF::Vector<CanvasPath::RadiusVariant>& argument)
{
auto processed = argument.map([&](const CanvasPath::RadiusVariant& item) -> Ref<JSON::Value> {
return WTF::switchOn(item,
[](DOMPointInit point) -> Ref<JSON::Value> {
auto object = JSON::Object::create();
object->setDouble("x"_s, point.x);
object->setDouble("y"_s, point.y);
object->setDouble("z"_s, point.z);
object->setDouble("w"_s, point.w);
// FIXME We'd likely want to either create a new RecordingSwizzleType::DOMPointInit or RecordingSwizzleType::Object to avoid
// encoding the same data multiple times
return object;
},
[](double radius) -> Ref<JSON::Value> {
return JSON::Value::create(radius);
});
});
// Did not use buildArrayForVector due to WTFMov'ing the Ref<Value> to the vector as Value copy constructor was deleted.
auto array = JSON::ArrayOf<JSON::Value>::create();
for (auto& item : processed)
array->addItem(WTFMove(item));
return { { array, RecordingSwizzleType::Array } };
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(double argument)
{
return {{ JSON::Value::create(argument), RecordingSwizzleType::Number }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(float argument)
{
return {{ JSON::Value::create(static_cast<double>(argument)), RecordingSwizzleType::Number }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(uint64_t argument)
{
return {{ JSON::Value::create(static_cast<double>(argument)), RecordingSwizzleType::Number }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(int64_t argument)
{
return {{ JSON::Value::create(static_cast<double>(argument)), RecordingSwizzleType::Number }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(uint32_t argument)
{
return {{ JSON::Value::create(static_cast<double>(argument)), RecordingSwizzleType::Number }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(int32_t argument)
{
return {{ JSON::Value::create(static_cast<double>(argument)), RecordingSwizzleType::Number }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(uint8_t argument)
{
return {{ JSON::Value::create(static_cast<int>(argument)), RecordingSwizzleType::Number }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(bool argument)
{
return {{ JSON::Value::create(argument), RecordingSwizzleType::Boolean }};
}
#if ENABLE(CSS_TYPED_OM)
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(RefPtr<CSSStyleImageValue>& argument)
{
if (!argument)
return std::nullopt;
return {{ valueIndexForData(argument), RecordingSwizzleType::Image }};
}
#endif // ENABLE(CSS_TYPED_OM)
#if ENABLE(OFFSCREEN_CANVAS)
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(RefPtr<OffscreenCanvas>& argument)
{
if (!argument)
return std::nullopt;
return {{ valueIndexForData(argument), RecordingSwizzleType::Image }};
}
#endif // ENABLE(OFFSCREEN_CANVAS)
#if ENABLE(VIDEO)
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(RefPtr<HTMLVideoElement>& argument)
{
if (!argument)
return std::nullopt;
return {{ valueIndexForData(argument), RecordingSwizzleType::Image }};
}
#endif // ENABLE(VIDEO)
#if ENABLE(WEBGL)
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(std::optional<WebGLRenderingContextBase::BufferDataSource>& argument)
{
if (!argument)
return std::nullopt;
return WTF::switchOn(*argument, [&] (auto& value) {
return processArgument(value);
});
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(std::optional<WebGLRenderingContextBase::TexImageSource>& argument)
{
if (!argument)
return std::nullopt;
return WTF::switchOn(*argument, [&] (auto& value) {
return processArgument(value);
});
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(WebGLBuffer* argument)
{
if (!argument)
return std::nullopt;
return {{ JSON::Value::create(0), RecordingSwizzleType::WebGLBuffer }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(WebGLFramebuffer* argument)
{
if (!argument)
return std::nullopt;
return {{ JSON::Value::create(0), RecordingSwizzleType::WebGLFramebuffer }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(WebGLProgram* argument)
{
if (!argument)
return std::nullopt;
return {{ JSON::Value::create(0), RecordingSwizzleType::WebGLProgram }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(WebGLQuery* argument)
{
if (!argument)
return std::nullopt;
return {{ JSON::Value::create(0), RecordingSwizzleType::WebGLQuery }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(WebGLRenderbuffer* argument)
{
if (!argument)
return std::nullopt;
return {{ JSON::Value::create(0), RecordingSwizzleType::WebGLRenderbuffer }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(WebGLRenderingContextBase::BufferDataSource& argument)
{
return WTF::switchOn(argument, [&] (auto& value) {
return processArgument(value);
});
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(WebGLRenderingContextBase::Float32List::VariantType& argument)
{
return WTF::switchOn(argument, [&] (auto& value) {
return processArgument(value);
});
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(WebGLRenderingContextBase::Int32List::VariantType& argument)
{
return WTF::switchOn(argument, [&] (auto& value) {
return processArgument(value);
});
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(WebGLRenderingContextBase::TexImageSource& argument)
{
return WTF::switchOn(argument, [&] (auto& value) {
return processArgument(value);
});
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(WebGLSampler* argument)
{
if (!argument)
return std::nullopt;
return {{ JSON::Value::create(0), RecordingSwizzleType::WebGLSampler }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(WebGLShader* argument)
{
if (!argument)
return std::nullopt;
return {{ JSON::Value::create(0), RecordingSwizzleType::WebGLShader }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(WebGLSync* argument)
{
if (!argument)
return std::nullopt;
return {{ JSON::Value::create(0), RecordingSwizzleType::WebGLSync }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(WebGLTexture* argument)
{
if (!argument)
return std::nullopt;
return {{ JSON::Value::create(0), RecordingSwizzleType::WebGLTexture }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(WebGLUniformLocation* argument)
{
if (!argument)
return std::nullopt;
return {{ JSON::Value::create(0), RecordingSwizzleType::WebGLUniformLocation }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(WebGLVertexArrayObject* argument)
{
if (!argument)
return std::nullopt;
return {{ JSON::Value::create(0), RecordingSwizzleType::WebGLVertexArrayObject }};
}
#endif // ENABLE(WEBGL)
#if ENABLE(WEBGL2)
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(WebGLTransformFeedback* argument)
{
if (!argument)
return std::nullopt;
return {{ JSON::Value::create(0), RecordingSwizzleType::WebGLTransformFeedback }};
}
std::optional<InspectorCanvasCallTracer::ProcessedArgument> InspectorCanvas::processArgument(WebGL2RenderingContext::Uint32List::VariantType& argument)
{
return WTF::switchOn(argument, [&] (auto& value) {
return processArgument(value);
});
}
#endif // ENABLE(WEBGL2)
static bool shouldSnapshotBitmapRendererAction(const String& name)
{
return name == "transferFromImageBitmap"_s;
}
#if ENABLE(WEBGL)
static bool shouldSnapshotWebGLAction(const String& name)
{
return name == "clear"_s
|| name == "drawArrays"_s
|| name == "drawElements"_s;
}
#endif
#if ENABLE(WEBGL2)
static bool shouldSnapshotWebGL2Action(const String& name)
{
return name == "clear"_s
|| name == "drawArrays"_s
|| name == "drawArraysInstanced"_s
|| name == "drawElements"_s
|| name == "drawElementsInstanced"_s;
}
#endif
void InspectorCanvas::recordAction(String&& name, InspectorCanvasCallTracer::ProcessedArguments&& arguments)
{
if (!m_initialState) {
// We should only construct the initial state for the first action of the recording.
ASSERT(!m_frames && !m_currentActions);
m_initialState = buildInitialState();
m_bufferUsed += m_initialState->memoryCost();
}
if (!m_frames)
m_frames = JSON::ArrayOf<Protocol::Recording::Frame>::create();
if (!m_currentActions) {
m_currentActions = JSON::ArrayOf<JSON::Value>::create();
auto frame = Protocol::Recording::Frame::create()
.setActions(*m_currentActions)
.release();
m_frames->addItem(WTFMove(frame));
++m_framesCaptured;
m_currentFrameStartTime = MonotonicTime::now();
}
appendActionSnapshotIfNeeded();
auto* context = canvasContext();
ASSERT(context);
// FIXME: <https://webkit.org/b/201651> Web Inspector: Canvas: support canvas recordings for WebGPUDevice
if (is<ImageBitmapRenderingContext>(context) && shouldSnapshotBitmapRendererAction(name))
m_contentChanged = true;
#if ENABLE(WEBGL)
else if (is<WebGLRenderingContext>(context) && shouldSnapshotWebGLAction(name))
m_contentChanged = true;
#endif
#if ENABLE(WEBGL2)
else if (is<WebGL2RenderingContext>(context) && shouldSnapshotWebGL2Action(name))
m_contentChanged = true;
#endif
m_lastRecordedAction = buildAction(WTFMove(name), WTFMove(arguments));
m_bufferUsed += m_lastRecordedAction->memoryCost();
m_currentActions->addItem(*m_lastRecordedAction);
}
void InspectorCanvas::finalizeFrame()
{
appendActionSnapshotIfNeeded();
if (m_frames && m_frames->length() && !std::isnan(m_currentFrameStartTime)) {
auto currentFrame = static_reference_cast<Protocol::Recording::Frame>(m_frames->get(m_frames->length() - 1));
currentFrame->setDuration((MonotonicTime::now() - m_currentFrameStartTime).milliseconds());
m_currentFrameStartTime = MonotonicTime::nan();
}
m_currentActions = nullptr;
}
void InspectorCanvas::markCurrentFrameIncomplete()
{
if (!m_currentActions || !m_frames || !m_frames->length())
return;
auto currentFrame = static_reference_cast<Protocol::Recording::Frame>(m_frames->get(m_frames->length() - 1));
currentFrame->setIncomplete(true);
}
void InspectorCanvas::setBufferLimit(long memoryLimit)
{
m_bufferLimit = std::min<long>(memoryLimit, std::numeric_limits<int>::max());
}
bool InspectorCanvas::hasBufferSpace() const
{
return m_bufferUsed < m_bufferLimit;
}
void InspectorCanvas::setFrameCount(long frameCount)
{
if (frameCount > 0)
m_frameCount = std::min<long>(frameCount, std::numeric_limits<int>::max());
else
m_frameCount = std::nullopt;
}
bool InspectorCanvas::overFrameCount() const
{
return m_frameCount && m_framesCaptured >= m_frameCount.value();
}
static RefPtr<Inspector::Protocol::Canvas::ContextAttributes> buildObjectForCanvasContextAttributes(CanvasRenderingContext& context)
{
if (is<CanvasRenderingContext2D>(context)) {
auto attributes = downcast<CanvasRenderingContext2D>(context).getContextAttributes();
auto contextAttributesPayload = Inspector::Protocol::Canvas::ContextAttributes::create()
.release();
switch (attributes.colorSpace) {
case PredefinedColorSpace::SRGB:
contextAttributesPayload->setColorSpace(Protocol::Canvas::ColorSpace::SRGB);
break;
#if ENABLE(PREDEFINED_COLOR_SPACE_DISPLAY_P3)
case PredefinedColorSpace::DisplayP3:
contextAttributesPayload->setColorSpace(Protocol::Canvas::ColorSpace::DisplayP3);
break;
#endif
}
contextAttributesPayload->setDesynchronized(attributes.desynchronized);
return contextAttributesPayload;
}
if (is<ImageBitmapRenderingContext>(context)) {
auto contextAttributesPayload = Inspector::Protocol::Canvas::ContextAttributes::create()
.release();
contextAttributesPayload->setAlpha(downcast<ImageBitmapRenderingContext>(context).hasAlpha());
return contextAttributesPayload;
}
#if ENABLE(WEBGL)
if (is<WebGLRenderingContextBase>(context)) {
const auto& attributes = downcast<WebGLRenderingContextBase>(context).getContextAttributes();
if (!attributes)
return nullptr;
auto contextAttributesPayload = Inspector::Protocol::Canvas::ContextAttributes::create()
.release();
contextAttributesPayload->setAlpha(attributes->alpha);
contextAttributesPayload->setDepth(attributes->depth);
contextAttributesPayload->setStencil(attributes->stencil);
contextAttributesPayload->setAntialias(attributes->antialias);
contextAttributesPayload->setPremultipliedAlpha(attributes->premultipliedAlpha);
contextAttributesPayload->setPreserveDrawingBuffer(attributes->preserveDrawingBuffer);
switch (attributes->powerPreference) {
case WebGLPowerPreference::Default:
contextAttributesPayload->setPowerPreference("default"_s);
break;
case WebGLPowerPreference::LowPower:
contextAttributesPayload->setPowerPreference("low-power"_s);
break;
case WebGLPowerPreference::HighPerformance:
contextAttributesPayload->setPowerPreference("high-performance"_s);
break;
}
contextAttributesPayload->setFailIfMajorPerformanceCaveat(attributes->failIfMajorPerformanceCaveat);
return contextAttributesPayload;
}
#endif // ENABLE(WEBGL)
return nullptr;
}
Ref<Protocol::Canvas::Canvas> InspectorCanvas::buildObjectForCanvas(bool captureBacktrace)
{
using ContextTypeType = std::optional<Protocol::Canvas::ContextType>;
auto contextType = WTF::switchOn(m_context,
[] (std::reference_wrapper<CanvasRenderingContext> contextWrapper) -> ContextTypeType {
auto& context = contextWrapper.get();
if (is<CanvasRenderingContext2D>(context))
return Protocol::Canvas::ContextType::Canvas2D;
if (is<ImageBitmapRenderingContext>(context))
return Protocol::Canvas::ContextType::BitmapRenderer;
#if ENABLE(WEBGL)
if (is<WebGLRenderingContext>(context))
return Protocol::Canvas::ContextType::WebGL;
#endif
#if ENABLE(WEBGL2)
if (is<WebGL2RenderingContext>(context))
return Protocol::Canvas::ContextType::WebGL2;
#endif
return std::nullopt;
}, [] (std::monostate) -> ContextTypeType {
ASSERT_NOT_REACHED();
return std::nullopt;
}
);
if (!contextType) {
ASSERT_NOT_REACHED();
contextType = Protocol::Canvas::ContextType::Canvas2D;
}
auto canvas = Protocol::Canvas::Canvas::create()
.setCanvasId(m_identifier)
.setContextType(contextType.value())
.release();
if (auto* node = canvasElement()) {
String cssCanvasName = node->document().nameForCSSCanvasElement(*node);
if (!cssCanvasName.isEmpty())
canvas->setCssCanvasName(cssCanvasName);
// FIXME: <https://webkit.org/b/178282> Web Inspector: send a DOM node with each Canvas payload and eliminate Canvas.requestNode
}
auto contextAttributes = WTF::switchOn(m_context,
[] (std::reference_wrapper<CanvasRenderingContext> contextWrapper) {
return buildObjectForCanvasContextAttributes(contextWrapper);
}, [] (std::monostate) -> RefPtr<Inspector::Protocol::Canvas::ContextAttributes> {
ASSERT_NOT_REACHED();
return nullptr;
}
);
if (contextAttributes)
canvas->setContextAttributes(contextAttributes.releaseNonNull());
// FIXME: <https://webkit.org/b/180833> Web Inspector: support OffscreenCanvas for Canvas related operations
if (auto* node = canvasElement()) {
if (size_t memoryCost = node->memoryCost())
canvas->setMemoryCost(memoryCost);
}
if (captureBacktrace) {
auto stackTrace = Inspector::createScriptCallStack(JSExecState::currentState(), Inspector::ScriptCallStack::maxCallStackSizeToCapture);
canvas->setBacktrace(stackTrace->buildInspectorArray());
}
return canvas;
}
Ref<Protocol::Recording::Recording> InspectorCanvas::releaseObjectForRecording()
{
ASSERT(!m_currentActions);
ASSERT(!m_lastRecordedAction);
ASSERT(!m_frames);
auto* context = canvasContext();
ASSERT(context);
// FIXME: <https://webkit.org/b/201651> Web Inspector: Canvas: support canvas recordings for WebGPUDevice
Protocol::Recording::Type type;
if (is<CanvasRenderingContext2D>(context))
type = Protocol::Recording::Type::Canvas2D;
else if (is<ImageBitmapRenderingContext>(context))
type = Protocol::Recording::Type::CanvasBitmapRenderer;
#if ENABLE(WEBGL)
else if (is<WebGLRenderingContext>(context))
type = Protocol::Recording::Type::CanvasWebGL;
#endif
#if ENABLE(WEBGL2)
else if (is<WebGL2RenderingContext>(context))
type = Protocol::Recording::Type::CanvasWebGL2;
#endif
else {
ASSERT_NOT_REACHED();
type = Protocol::Recording::Type::Canvas2D;
}
auto recording = Protocol::Recording::Recording::create()
.setVersion(Protocol::Recording::VERSION)
.setType(type)
.setInitialState(m_initialState.releaseNonNull())
.setData(m_serializedDuplicateData.releaseNonNull())
.release();
if (!m_recordingName.isEmpty())
recording->setName(m_recordingName);
resetRecordingData();
return recording;
}
String InspectorCanvas::getCanvasContentAsDataURL(Protocol::ErrorString& errorString)
{
auto* node = canvasElement();
if (!node) {
errorString = "Missing HTMLCanvasElement of canvas for given canvasId"_s;
return emptyString();
}
#if ENABLE(WEBGL)
auto* context = node->renderingContext();
if (is<WebGLRenderingContextBase>(context))
downcast<WebGLRenderingContextBase>(*context).setPreventBufferClearForInspector(true);
#endif
ExceptionOr<UncachedString> result = node->toDataURL("image/png"_s);
#if ENABLE(WEBGL)
if (is<WebGLRenderingContextBase>(context))
downcast<WebGLRenderingContextBase>(*context).setPreventBufferClearForInspector(false);
#endif
if (result.hasException()) {
errorString = result.releaseException().releaseMessage();
return emptyString();
}
return result.releaseReturnValue().string;
}
void InspectorCanvas::appendActionSnapshotIfNeeded()
{
if (!m_lastRecordedAction)
return;
if (m_contentChanged) {
m_bufferUsed -= m_lastRecordedAction->memoryCost();
Protocol::ErrorString ignored;
m_lastRecordedAction->addItem(indexForData(getCanvasContentAsDataURL(ignored)));
m_bufferUsed += m_lastRecordedAction->memoryCost();
}
m_lastRecordedAction = nullptr;
m_contentChanged = false;
}
int InspectorCanvas::indexForData(DuplicateDataVariant data)
{
size_t index = m_indexedDuplicateData.findIf([&] (auto item) {
if (data == item)
return true;
auto traceA = std::get_if<RefPtr<ScriptCallStack>>(&data);
auto traceB = std::get_if<RefPtr<ScriptCallStack>>(&item);
if (traceA && *traceA && traceB && *traceB)
return (*traceA)->isEqual((*traceB).get());
return false;
});
if (index != notFound) {
ASSERT(index < static_cast<size_t>(std::numeric_limits<int>::max()));
return static_cast<int>(index);
}
if (!m_serializedDuplicateData)
m_serializedDuplicateData = JSON::ArrayOf<JSON::Value>::create();
RefPtr<JSON::Value> item;
WTF::switchOn(data,
[&] (const RefPtr<HTMLImageElement>& imageElement) {
String dataURL = "data:,"_s;
if (CachedImage* cachedImage = imageElement->cachedImage()) {
Image* image = cachedImage->image();
if (image && image != &Image::nullImage()) {
auto imageBuffer = ImageBuffer::create(image->size(), RenderingPurpose::Unspecified, 1, DestinationColorSpace::SRGB(), PixelFormat::BGRA8);
imageBuffer->context().drawImage(*image, FloatPoint(0, 0));
dataURL = imageBuffer->toDataURL("image/png"_s);
}
}
index = indexForData(dataURL);
},
#if ENABLE(VIDEO)
[&] (RefPtr<HTMLVideoElement>& videoElement) {
String dataURL = "data:,"_s;
unsigned videoWidth = videoElement->videoWidth();
unsigned videoHeight = videoElement->videoHeight();
auto imageBuffer = ImageBuffer::create(FloatSize(videoWidth, videoHeight), RenderingPurpose::Unspecified, 1, DestinationColorSpace::SRGB(), PixelFormat::BGRA8);
if (imageBuffer) {
videoElement->paintCurrentFrameInContext(imageBuffer->context(), FloatRect(0, 0, videoWidth, videoHeight));
dataURL = imageBuffer->toDataURL("image/png"_s);
}
index = indexForData(dataURL);
},
#endif
[&] (RefPtr<HTMLCanvasElement>& canvasElement) {
String dataURL = "data:,"_s;
ExceptionOr<UncachedString> result = canvasElement->toDataURL("image/png"_s);
if (!result.hasException())
dataURL = result.releaseReturnValue().string;
index = indexForData(dataURL);
},
[&] (const RefPtr<CanvasGradient>& canvasGradient) { item = buildArrayForCanvasGradient(*canvasGradient); },
[&] (const RefPtr<CanvasPattern>& canvasPattern) { item = buildArrayForCanvasPattern(*canvasPattern); },
[&] (const RefPtr<ImageData>& imageData) { item = buildArrayForImageData(*imageData); },
[&] (RefPtr<ImageBitmap>& imageBitmap) {
index = indexForData(imageBitmap->buffer()->toDataURL("image/png"_s));
},
[&] (const RefPtr<ScriptCallStack>& scriptCallStack) {
auto array = JSON::ArrayOf<double>::create();
for (size_t i = 0; i < scriptCallStack->size(); ++i)
array->addItem(indexForData(scriptCallStack->at(i)));
item = WTFMove(array);
},
#if ENABLE(CSS_TYPED_OM)
[&] (const RefPtr<CSSStyleImageValue>& cssImageValue) {
String dataURL = "data:,"_s;
if (auto* cachedImage = cssImageValue->image()) {
auto* image = cachedImage->image();
if (image && image != &Image::nullImage()) {
auto imageBuffer = ImageBuffer::create(image->size(), RenderingPurpose::Unspecified, 1, DestinationColorSpace::SRGB(), PixelFormat::BGRA8);
imageBuffer->context().drawImage(*image, FloatPoint(0, 0));
dataURL = imageBuffer->toDataURL("image/png"_s);
}
}
index = indexForData(dataURL);
},
#endif
[&] (const ScriptCallFrame& scriptCallFrame) {
auto array = JSON::ArrayOf<double>::create();
array->addItem(indexForData(scriptCallFrame.functionName()));
array->addItem(indexForData(scriptCallFrame.sourceURL()));
array->addItem(static_cast<int>(scriptCallFrame.lineNumber()));
array->addItem(static_cast<int>(scriptCallFrame.columnNumber()));
item = WTFMove(array);
},
#if ENABLE(OFFSCREEN_CANVAS)
[&] (const RefPtr<OffscreenCanvas> offscreenCanvas) {
String dataURL = "data:,"_s;
if (offscreenCanvas->originClean() && offscreenCanvas->hasCreatedImageBuffer()) {
if (auto *buffer = offscreenCanvas->buffer())
dataURL = buffer->toDataURL("image/png"_s);
}
index = indexForData(dataURL);
},
#endif
[&] (const String& value) { item = JSON::Value::create(value); }
);
if (item) {
m_bufferUsed += item->memoryCost();
m_serializedDuplicateData->addItem(item.releaseNonNull());
m_indexedDuplicateData.append(data);
index = m_indexedDuplicateData.size() - 1;
}
ASSERT(index < static_cast<size_t>(std::numeric_limits<int>::max()));
return static_cast<int>(index);
}
Ref<JSON::Value> InspectorCanvas::valueIndexForData(DuplicateDataVariant data)
{
return JSON::Value::create(indexForData(data));
}
String InspectorCanvas::stringIndexForKey(const String& key)
{
return String::number(indexForData(key));
}
static Ref<JSON::ArrayOf<double>> buildArrayForAffineTransform(const AffineTransform& affineTransform)
{
auto array = JSON::ArrayOf<double>::create();
array->addItem(affineTransform.a());
array->addItem(affineTransform.b());
array->addItem(affineTransform.c());
array->addItem(affineTransform.d());
array->addItem(affineTransform.e());
array->addItem(affineTransform.f());
return array;
}
Ref<Protocol::Recording::InitialState> InspectorCanvas::buildInitialState()
{
auto* context = canvasContext();
ASSERT(context);
// FIXME: <https://webkit.org/b/201651> Web Inspector: Canvas: support canvas recordings for WebGPUDevice
auto initialStatePayload = Protocol::Recording::InitialState::create().release();
auto attributesPayload = JSON::Object::create();
attributesPayload->setInteger("width"_s, context->canvasBase().width());
attributesPayload->setInteger("height"_s, context->canvasBase().height());
auto statesPayload = JSON::ArrayOf<JSON::Object>::create();
auto parametersPayload = JSON::ArrayOf<JSON::Value>::create();
if (is<CanvasRenderingContext2D>(context)) {
auto& context2d = downcast<CanvasRenderingContext2D>(*context);
for (auto& state : context2d.stateStack()) {
auto statePayload = JSON::Object::create();
statePayload->setArray(stringIndexForKey("setTransform"_s), buildArrayForAffineTransform(state.transform));
statePayload->setDouble(stringIndexForKey("globalAlpha"_s), state.globalAlpha);
statePayload->setInteger(stringIndexForKey("globalCompositeOperation"_s), indexForData(state.globalCompositeOperationString()));
statePayload->setDouble(stringIndexForKey("lineWidth"_s), state.lineWidth);
statePayload->setInteger(stringIndexForKey("lineCap"_s), indexForData(convertEnumerationToString(state.canvasLineCap())));
statePayload->setInteger(stringIndexForKey("lineJoin"_s), indexForData(convertEnumerationToString(state.canvasLineJoin())));
statePayload->setDouble(stringIndexForKey("miterLimit"_s), state.miterLimit);
statePayload->setDouble(stringIndexForKey("shadowOffsetX"_s), state.shadowOffset.width());
statePayload->setDouble(stringIndexForKey("shadowOffsetY"_s), state.shadowOffset.height());
statePayload->setDouble(stringIndexForKey("shadowBlur"_s), state.shadowBlur);
statePayload->setInteger(stringIndexForKey("shadowColor"_s), indexForData(serializationForHTML(state.shadowColor)));
// The parameter to `setLineDash` is itself an array, so we need to wrap the parameters
// list in an array to allow spreading.
auto setLineDash = JSON::ArrayOf<JSON::Value>::create();
setLineDash->addItem(buildArrayForVector(state.lineDash));
statePayload->setArray(stringIndexForKey("setLineDash"_s), WTFMove(setLineDash));
statePayload->setDouble(stringIndexForKey("lineDashOffset"_s), state.lineDashOffset);
statePayload->setInteger(stringIndexForKey("font"_s), indexForData(state.fontString()));
statePayload->setInteger(stringIndexForKey("textAlign"_s), indexForData(convertEnumerationToString(state.canvasTextAlign())));
statePayload->setInteger(stringIndexForKey("textBaseline"_s), indexForData(convertEnumerationToString(state.canvasTextBaseline())));
statePayload->setInteger(stringIndexForKey("direction"_s), indexForData(convertEnumerationToString(state.direction)));
int strokeStyleIndex;
if (auto canvasGradient = state.strokeStyle.canvasGradient())
strokeStyleIndex = indexForData(canvasGradient);
else if (auto canvasPattern = state.strokeStyle.canvasPattern())
strokeStyleIndex = indexForData(canvasPattern);
else
strokeStyleIndex = indexForData(state.strokeStyle.color());
statePayload->setInteger(stringIndexForKey("strokeStyle"_s), strokeStyleIndex);
int fillStyleIndex;
if (auto canvasGradient = state.fillStyle.canvasGradient())
fillStyleIndex = indexForData(canvasGradient);
else if (auto canvasPattern = state.fillStyle.canvasPattern())
fillStyleIndex = indexForData(canvasPattern);
else
fillStyleIndex = indexForData(state.fillStyle.color());
statePayload->setInteger(stringIndexForKey("fillStyle"_s), fillStyleIndex);
statePayload->setBoolean(stringIndexForKey("imageSmoothingEnabled"_s), state.imageSmoothingEnabled);
statePayload->setInteger(stringIndexForKey("imageSmoothingQuality"_s), indexForData(convertEnumerationToString(state.imageSmoothingQuality)));
// FIXME: This is wrong: it will repeat the context's current path for every level in the stack, ignoring saved paths.
auto setPath = JSON::ArrayOf<JSON::Value>::create();
setPath->addItem(indexForData(buildStringFromPath(context2d.getPath()->path())));
statePayload->setArray(stringIndexForKey("setPath"_s), WTFMove(setPath));
statesPayload->addItem(WTFMove(statePayload));
}
}
if (auto contextAttributes = buildObjectForCanvasContextAttributes(*context))
parametersPayload->addItem(contextAttributes.releaseNonNull());
initialStatePayload->setAttributes(WTFMove(attributesPayload));
if (statesPayload->length())
initialStatePayload->setStates(WTFMove(statesPayload));
if (parametersPayload->length())
initialStatePayload->setParameters(WTFMove(parametersPayload));
Protocol::ErrorString ignored;
initialStatePayload->setContent(getCanvasContentAsDataURL(ignored));
return initialStatePayload;
}
Ref<JSON::ArrayOf<JSON::Value>> InspectorCanvas::buildAction(String&& name, InspectorCanvasCallTracer::ProcessedArguments&& arguments)
{
auto action = JSON::ArrayOf<JSON::Value>::create();
action->addItem(indexForData(WTFMove(name)));
auto parametersData = JSON::ArrayOf<JSON::Value>::create();
auto swizzleTypes = JSON::ArrayOf<int>::create();
for (auto&& argument : WTFMove(arguments)) {
if (!argument)
continue;
parametersData->addItem(argument->value.copyRef());
swizzleTypes->addItem(static_cast<int>(argument->swizzleType));
}
action->addItem(WTFMove(parametersData));
action->addItem(WTFMove(swizzleTypes));
auto trace = Inspector::createScriptCallStack(JSExecState::currentState(), Inspector::ScriptCallStack::maxCallStackSizeToCapture);
action->addItem(indexForData(trace.ptr()));
return action;
}
Ref<JSON::ArrayOf<JSON::Value>> InspectorCanvas::buildArrayForCanvasGradient(const CanvasGradient& canvasGradient)
{
ASCIILiteral type = "linear-gradient"_s;
auto parameters = JSON::ArrayOf<double>::create();
WTF::switchOn(canvasGradient.gradient().data(),
[&] (const Gradient::LinearData& data) {
parameters->addItem(data.point0.x());
parameters->addItem(data.point0.y());
parameters->addItem(data.point1.x());
parameters->addItem(data.point1.y());
},
[&] (const Gradient::RadialData& data) {
type = "radial-gradient"_s;
parameters->addItem(data.point0.x());
parameters->addItem(data.point0.y());
parameters->addItem(data.startRadius);
parameters->addItem(data.point1.x());
parameters->addItem(data.point1.y());
parameters->addItem(data.endRadius);
},
[&] (const Gradient::ConicData& data) {
type = "conic-gradient"_s;
parameters->addItem(data.point0.x());
parameters->addItem(data.point0.y());
parameters->addItem(data.angleRadians);
}
);
auto stops = JSON::ArrayOf<JSON::Value>::create();
for (auto& colorStop : canvasGradient.gradient().stops()) {
auto stop = JSON::ArrayOf<JSON::Value>::create();
stop->addItem(colorStop.offset);
stop->addItem(indexForData(serializationForCSS(colorStop.color)));
stops->addItem(WTFMove(stop));
}
auto array = JSON::ArrayOf<JSON::Value>::create();
array->addItem(indexForData(type));
array->addItem(WTFMove(parameters));
array->addItem(WTFMove(stops));
return array;
}
Ref<JSON::ArrayOf<JSON::Value>> InspectorCanvas::buildArrayForCanvasPattern(const CanvasPattern& canvasPattern)
{
auto imageBuffer = canvasPattern.pattern().tileImageBuffer();
String repeat;
bool repeatX = canvasPattern.pattern().repeatX();
bool repeatY = canvasPattern.pattern().repeatY();
if (repeatX && repeatY)
repeat = "repeat"_s;
else if (repeatX && !repeatY)
repeat = "repeat-x"_s;
else if (!repeatX && repeatY)
repeat = "repeat-y"_s;
else
repeat = "no-repeat"_s;
auto array = JSON::ArrayOf<JSON::Value>::create();
array->addItem(indexForData(imageBuffer->toDataURL("image/png"_s)));
array->addItem(indexForData(repeat));
return array;
}
Ref<JSON::ArrayOf<JSON::Value>> InspectorCanvas::buildArrayForImageData(const ImageData& imageData)
{
auto data = JSON::ArrayOf<int>::create();
for (size_t i = 0; i < imageData.data().length(); ++i)
data->addItem(imageData.data().item(i));
auto array = JSON::ArrayOf<JSON::Value>::create();
array->addItem(WTFMove(data));
array->addItem(imageData.width());
array->addItem(imageData.height());
return array;
}
} // namespace WebCore