mirror of
https://github.com/RGBCube/serenity
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LibWeb: Generate CanvasRenderingContext2D bindings from IDL :^)
We're still missing optional argument support, so this implementation doesn't support fill(), only fill(fill_rule). Still it's really nice to get rid of so much hand-written wrapper code.
This commit is contained in:
Andreas Kling
parent
f361d25ec8
commit
9ce25bbf1d
8 changed files with 84 additions and 505 deletions
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@ -1,413 +0,0 @@
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/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <AK/FlyString.h>
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#include <AK/Function.h>
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#include <LibJS/Interpreter.h>
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#include <LibJS/Runtime/Error.h>
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#include <LibJS/Runtime/GlobalObject.h>
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#include <LibJS/Runtime/PrimitiveString.h>
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#include <LibJS/Runtime/Value.h>
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#include <LibWeb/Bindings/CanvasRenderingContext2DWrapper.h>
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#include <LibWeb/Bindings/HTMLImageElementWrapper.h>
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#include <LibWeb/Bindings/ImageDataWrapper.h>
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#include <LibWeb/Bindings/NodeWrapperFactory.h>
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#include <LibWeb/DOM/CanvasRenderingContext2D.h>
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#include <LibWeb/DOM/HTMLCanvasElement.h>
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#include <LibWeb/DOM/HTMLImageElement.h>
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#include <LibWeb/DOM/ImageData.h>
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namespace Web {
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namespace Bindings {
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CanvasRenderingContext2DWrapper* wrap(JS::Heap& heap, CanvasRenderingContext2D& impl)
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{
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return static_cast<CanvasRenderingContext2DWrapper*>(wrap_impl(heap, impl));
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}
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CanvasRenderingContext2DWrapper::CanvasRenderingContext2DWrapper(JS::GlobalObject& global_object, CanvasRenderingContext2D& impl)
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: Wrapper(*global_object.object_prototype())
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, m_impl(impl)
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{
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}
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void CanvasRenderingContext2DWrapper::initialize(JS::Interpreter& interpreter, JS::GlobalObject& global_object)
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{
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Wrapper::initialize(interpreter, global_object);
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define_native_function("fillRect", fill_rect, 4);
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define_native_function("scale", scale, 2);
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define_native_function("translate", translate, 2);
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define_native_function("strokeRect", stroke_rect, 4);
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define_native_function("drawImage", draw_image, 3);
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define_native_function("beginPath", begin_path, 0);
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define_native_function("closePath", close_path, 0);
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define_native_function("stroke", stroke, 0);
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define_native_function("fill", fill, 0);
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define_native_function("moveTo", move_to, 2);
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define_native_function("lineTo", line_to, 2);
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define_native_function("quadraticCurveTo", quadratic_curve_to, 4);
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define_native_function("createImageData", create_image_data, 1);
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define_native_function("putImageData", put_image_data, 3);
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define_native_property("fillStyle", fill_style_getter, fill_style_setter);
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define_native_property("strokeStyle", stroke_style_getter, stroke_style_setter);
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define_native_property("lineWidth", line_width_getter, line_width_setter);
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define_native_property("canvas", canvas_getter, nullptr);
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}
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CanvasRenderingContext2DWrapper::~CanvasRenderingContext2DWrapper()
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{
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}
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static CanvasRenderingContext2D* impl_from(JS::Interpreter& interpreter, JS::GlobalObject& global_object)
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{
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auto* this_object = interpreter.this_value(global_object).to_object(interpreter, global_object);
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if (!this_object)
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return nullptr;
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// FIXME: Verify that it's a CanvasRenderingContext2DWrapper somehow!
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return &static_cast<CanvasRenderingContext2DWrapper*>(this_object)->impl();
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}
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JS_DEFINE_NATIVE_FUNCTION(CanvasRenderingContext2DWrapper::fill_rect)
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{
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auto* impl = impl_from(interpreter, global_object);
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if (!impl)
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return {};
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if (interpreter.argument_count() >= 4) {
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auto x = interpreter.argument(0).to_double(interpreter);
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if (interpreter.exception())
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return {};
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auto y = interpreter.argument(1).to_double(interpreter);
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if (interpreter.exception())
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return {};
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auto width = interpreter.argument(2).to_double(interpreter);
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if (interpreter.exception())
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return {};
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auto height = interpreter.argument(3).to_double(interpreter);
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if (interpreter.exception())
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return {};
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impl->fill_rect(x, y, width, height);
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}
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return JS::js_undefined();
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}
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JS_DEFINE_NATIVE_FUNCTION(CanvasRenderingContext2DWrapper::stroke_rect)
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{
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auto* impl = impl_from(interpreter, global_object);
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if (!impl)
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return {};
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if (interpreter.argument_count() >= 4) {
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auto x = interpreter.argument(0).to_double(interpreter);
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if (interpreter.exception())
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return {};
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auto y = interpreter.argument(1).to_double(interpreter);
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if (interpreter.exception())
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return {};
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auto width = interpreter.argument(2).to_double(interpreter);
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if (interpreter.exception())
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return {};
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auto height = interpreter.argument(3).to_double(interpreter);
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if (interpreter.exception())
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return {};
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impl->stroke_rect(x, y, width, height);
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}
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return JS::js_undefined();
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}
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JS_DEFINE_NATIVE_FUNCTION(CanvasRenderingContext2DWrapper::draw_image)
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{
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auto* impl = impl_from(interpreter, global_object);
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if (!impl)
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return {};
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if (interpreter.argument_count() < 3)
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return interpreter.throw_exception<JS::TypeError>(JS::ErrorType::DrawImageArgumentCount);
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auto* image_argument = interpreter.argument(0).to_object(interpreter, global_object);
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if (!image_argument)
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return {};
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if (StringView(image_argument->class_name()) != "HTMLImageElementWrapper")
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return interpreter.throw_exception<JS::TypeError>(JS::ErrorType::ImageIsAn, image_argument->class_name());
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auto x = interpreter.argument(1).to_double(interpreter);
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if (interpreter.exception())
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return {};
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auto y = interpreter.argument(2).to_double(interpreter);
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if (interpreter.exception())
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return {};
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impl->draw_image(static_cast<const HTMLImageElementWrapper&>(*image_argument).impl(), x, y);
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return JS::js_undefined();
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}
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JS_DEFINE_NATIVE_FUNCTION(CanvasRenderingContext2DWrapper::scale)
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{
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auto* impl = impl_from(interpreter, global_object);
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if (!impl)
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return {};
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if (interpreter.argument_count() >= 2) {
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auto sx = interpreter.argument(0).to_number(interpreter);
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if (interpreter.exception())
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return {};
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auto sy = interpreter.argument(1).to_number(interpreter);
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if (interpreter.exception())
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return {};
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if (sx.is_finite_number() && sy.is_finite_number())
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impl->scale(sx.as_double(), sy.as_double());
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}
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return JS::js_undefined();
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}
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JS_DEFINE_NATIVE_FUNCTION(CanvasRenderingContext2DWrapper::translate)
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{
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auto* impl = impl_from(interpreter, global_object);
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if (!impl)
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return {};
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if (interpreter.argument_count() >= 2) {
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auto tx = interpreter.argument(0).to_number(interpreter);
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if (interpreter.exception())
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return {};
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auto ty = interpreter.argument(1).to_number(interpreter);
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if (interpreter.exception())
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return {};
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if (tx.is_finite_number() && ty.is_finite_number())
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impl->translate(tx.as_double(), ty.as_double());
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}
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return JS::js_undefined();
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}
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JS_DEFINE_NATIVE_GETTER(CanvasRenderingContext2DWrapper::fill_style_getter)
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{
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auto* impl = impl_from(interpreter, global_object);
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if (!impl)
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return {};
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return JS::js_string(interpreter, impl->fill_style());
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}
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JS_DEFINE_NATIVE_SETTER(CanvasRenderingContext2DWrapper::fill_style_setter)
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{
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auto* impl = impl_from(interpreter, global_object);
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if (!impl)
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return;
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auto string = value.to_string(interpreter);
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if (interpreter.exception())
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return;
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impl->set_fill_style(string);
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}
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JS_DEFINE_NATIVE_GETTER(CanvasRenderingContext2DWrapper::stroke_style_getter)
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{
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auto* impl = impl_from(interpreter, global_object);
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if (!impl)
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return {};
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return JS::js_string(interpreter, impl->stroke_style());
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}
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JS_DEFINE_NATIVE_SETTER(CanvasRenderingContext2DWrapper::stroke_style_setter)
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{
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auto* impl = impl_from(interpreter, global_object);
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if (!impl)
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return;
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auto string = value.to_string(interpreter);
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if (interpreter.exception())
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return;
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impl->set_stroke_style(string);
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}
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JS_DEFINE_NATIVE_GETTER(CanvasRenderingContext2DWrapper::line_width_getter)
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{
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auto* impl = impl_from(interpreter, global_object);
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if (!impl)
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return {};
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return JS::Value(impl->line_width());
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}
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JS_DEFINE_NATIVE_SETTER(CanvasRenderingContext2DWrapper::line_width_setter)
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{
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auto* impl = impl_from(interpreter, global_object);
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if (!impl)
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return;
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auto line_width = value.to_double(interpreter);
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if (interpreter.exception())
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return;
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impl->set_line_width(line_width);
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}
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JS_DEFINE_NATIVE_FUNCTION(CanvasRenderingContext2DWrapper::begin_path)
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{
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auto* impl = impl_from(interpreter, global_object);
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if (!impl)
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return {};
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impl->begin_path();
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return JS::js_undefined();
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}
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JS_DEFINE_NATIVE_FUNCTION(CanvasRenderingContext2DWrapper::close_path)
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{
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auto* impl = impl_from(interpreter, global_object);
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if (!impl)
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return {};
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impl->close_path();
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return JS::js_undefined();
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}
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JS_DEFINE_NATIVE_FUNCTION(CanvasRenderingContext2DWrapper::stroke)
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{
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auto* impl = impl_from(interpreter, global_object);
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if (!impl)
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return {};
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impl->stroke();
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return JS::js_undefined();
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}
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JS_DEFINE_NATIVE_FUNCTION(CanvasRenderingContext2DWrapper::fill)
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{
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auto* impl = impl_from(interpreter, global_object);
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if (!impl)
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return {};
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auto winding = Gfx::Painter::WindingRule::Nonzero;
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if (interpreter.argument_count() == 1) {
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auto arg0 = interpreter.argument(0);
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if (arg0.is_string()) {
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const auto& winding_name = arg0.as_string().string();
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if (winding_name == "evenodd") {
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winding = Gfx::Painter::WindingRule::EvenOdd;
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} else if (winding_name != "nonzero") {
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return interpreter.throw_exception<JS::TypeError>(JS::ErrorType::FillBadWindingRule);
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}
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} else {
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return interpreter.throw_exception<JS::TypeError>(JS::ErrorType::FillNonString);
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}
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} else {
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// FIXME: Path2D object
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return JS::js_undefined();
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}
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impl->fill(winding);
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return JS::js_undefined();
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}
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JS_DEFINE_NATIVE_FUNCTION(CanvasRenderingContext2DWrapper::move_to)
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{
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auto* impl = impl_from(interpreter, global_object);
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if (!impl)
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return {};
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auto x = interpreter.argument(0).to_double(interpreter);
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if (interpreter.exception())
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return {};
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auto y = interpreter.argument(1).to_double(interpreter);
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if (interpreter.exception())
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return {};
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impl->move_to(x, y);
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return JS::js_undefined();
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}
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JS_DEFINE_NATIVE_FUNCTION(CanvasRenderingContext2DWrapper::line_to)
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{
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auto* impl = impl_from(interpreter, global_object);
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if (!impl)
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return {};
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auto x = interpreter.argument(0).to_double(interpreter);
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if (interpreter.exception())
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return {};
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auto y = interpreter.argument(1).to_double(interpreter);
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if (interpreter.exception())
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return {};
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impl->line_to(x, y);
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return JS::js_undefined();
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}
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JS_DEFINE_NATIVE_FUNCTION(CanvasRenderingContext2DWrapper::quadratic_curve_to)
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{
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auto* impl = impl_from(interpreter, global_object);
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if (!impl)
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return {};
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auto cx = interpreter.argument(0).to_double(interpreter);
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if (interpreter.exception())
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return {};
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auto cy = interpreter.argument(1).to_double(interpreter);
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if (interpreter.exception())
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return {};
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auto x = interpreter.argument(2).to_double(interpreter);
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if (interpreter.exception())
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return {};
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auto y = interpreter.argument(3).to_double(interpreter);
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if (interpreter.exception())
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return {};
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impl->quadratic_curve_to(cx, cy, x, y);
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return JS::js_undefined();
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}
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JS_DEFINE_NATIVE_FUNCTION(CanvasRenderingContext2DWrapper::create_image_data)
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{
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auto* impl = impl_from(interpreter, global_object);
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if (!impl)
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return {};
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auto width = interpreter.argument(0).to_i32(interpreter);
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if (interpreter.exception())
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return {};
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auto height = interpreter.argument(1).to_i32(interpreter);
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if (interpreter.exception())
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return {};
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auto image_data = impl->create_image_data(global_object, width, height);
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return wrap(interpreter.heap(), *image_data);
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}
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JS_DEFINE_NATIVE_FUNCTION(CanvasRenderingContext2DWrapper::put_image_data)
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{
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auto* impl = impl_from(interpreter, global_object);
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if (!impl)
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return {};
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auto* image_data_object = interpreter.argument(0).to_object(interpreter, global_object);
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if (!image_data_object)
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return {};
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if (StringView(image_data_object->class_name()) != "ImageDataWrapper") {
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return interpreter.throw_exception<JS::TypeError>(JS::ErrorType::PutImageDataBadCall);
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}
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auto& image_data = static_cast<ImageDataWrapper*>(image_data_object)->impl();
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auto x = interpreter.argument(1).to_double(interpreter);
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if (interpreter.exception())
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return {};
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auto y = interpreter.argument(2).to_double(interpreter);
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if (interpreter.exception())
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return {};
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impl->put_image_data(image_data, x, y);
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return JS::js_undefined();
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}
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JS_DEFINE_NATIVE_GETTER(CanvasRenderingContext2DWrapper::canvas_getter)
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{
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auto* impl = impl_from(interpreter, global_object);
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if (!impl)
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return {};
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auto* element = impl->element();
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if (!element)
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return JS::js_null();
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return wrap(interpreter.heap(), *element);
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}
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}
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}
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@ -1,77 +0,0 @@
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/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
|
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* list of conditions and the following disclaimer.
|
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
|
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* 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 OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <LibWeb/Bindings/Wrapper.h>
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namespace Web {
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namespace Bindings {
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class CanvasRenderingContext2DWrapper final : public Wrapper {
|
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JS_OBJECT(CanvasRenderingContext2DWrapper, Wrapper);
|
||||
public:
|
||||
CanvasRenderingContext2DWrapper(JS::GlobalObject&, CanvasRenderingContext2D&);
|
||||
virtual void initialize(JS::Interpreter&, JS::GlobalObject&) override;
|
||||
virtual ~CanvasRenderingContext2DWrapper() override;
|
||||
|
||||
CanvasRenderingContext2D& impl() { return m_impl; }
|
||||
const CanvasRenderingContext2D& impl() const { return m_impl; }
|
||||
|
||||
private:
|
||||
JS_DECLARE_NATIVE_FUNCTION(fill_rect);
|
||||
JS_DECLARE_NATIVE_FUNCTION(stroke_rect);
|
||||
JS_DECLARE_NATIVE_FUNCTION(draw_image);
|
||||
JS_DECLARE_NATIVE_FUNCTION(scale);
|
||||
JS_DECLARE_NATIVE_FUNCTION(translate);
|
||||
JS_DECLARE_NATIVE_FUNCTION(begin_path);
|
||||
JS_DECLARE_NATIVE_FUNCTION(close_path);
|
||||
JS_DECLARE_NATIVE_FUNCTION(stroke);
|
||||
JS_DECLARE_NATIVE_FUNCTION(fill);
|
||||
JS_DECLARE_NATIVE_FUNCTION(move_to);
|
||||
JS_DECLARE_NATIVE_FUNCTION(line_to);
|
||||
JS_DECLARE_NATIVE_FUNCTION(quadratic_curve_to);
|
||||
JS_DECLARE_NATIVE_FUNCTION(create_image_data);
|
||||
JS_DECLARE_NATIVE_FUNCTION(put_image_data);
|
||||
|
||||
JS_DECLARE_NATIVE_GETTER(fill_style_getter);
|
||||
JS_DECLARE_NATIVE_SETTER(fill_style_setter);
|
||||
|
||||
JS_DECLARE_NATIVE_GETTER(stroke_style_getter);
|
||||
JS_DECLARE_NATIVE_SETTER(stroke_style_setter);
|
||||
|
||||
JS_DECLARE_NATIVE_GETTER(line_width_getter);
|
||||
JS_DECLARE_NATIVE_SETTER(line_width_setter);
|
||||
|
||||
JS_DECLARE_NATIVE_GETTER(canvas_getter);
|
||||
|
||||
NonnullRefPtr<CanvasRenderingContext2D> m_impl;
|
||||
};
|
||||
|
||||
CanvasRenderingContext2DWrapper* wrap(JS::Heap&, CanvasRenderingContext2D&);
|
||||
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue