72 lines
2.0 KiB
C++
72 lines
2.0 KiB
C++
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//
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// Created by Marc Rousavy on 31.08.23.
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//
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#include "DrawableFrameHostObject.h"
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#include <SkCanvas.h>
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#include "FrameHostObject.h"
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namespace vision {
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std::vector<jsi::PropNameID> DrawableFrameHostObject::getPropertyNames(jsi::Runtime& rt) {
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auto result = FrameHostObject::getPropertyNames(rt);
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// Skia - Render Frame
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result.push_back(jsi::PropNameID::forUtf8(rt, std::string("render")));
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if (_canvas != nullptr) {
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auto canvasPropNames = _canvas->getPropertyNames(rt);
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for (auto& prop : canvasPropNames) {
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result.push_back(std::move(prop));
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}
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}
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return result;
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}
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SkRect inscribe(SkSize size, SkRect rect) {
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auto halfWidthDelta = (rect.width() - size.width()) / 2.0;
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auto halfHeightDelta = (rect.height() - size.height()) / 2.0;
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return SkRect::MakeXYWH(rect.x() + halfWidthDelta,
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rect.y() + halfHeightDelta, size.width(),
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size.height());
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}
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jsi::Value DrawableFrameHostObject::get(jsi::Runtime& runtime, const jsi::PropNameID& propName) {
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auto name = propName.utf8(runtime);
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if (name == "render") {
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auto render = JSI_HOST_FUNCTION_LAMBDA {
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if (_canvas == nullptr) {
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throw jsi::JSError(runtime, "Trying to render a Frame without a Skia Canvas! Did you install Skia?");
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}
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throw std::runtime_error("render() is not yet implemented!");
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return jsi::Value::undefined();
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};
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return jsi::Function::createFromHostFunction(runtime, jsi::PropNameID::forUtf8(runtime, "render"), 1, render);
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}
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if (name == "isDrawable") {
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return jsi::Value(_canvas != nullptr);
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}
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if (_canvas != nullptr) {
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// If we have a Canvas, try to access the property on there.
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auto result = _canvas->get(runtime, propName);
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if (!result.isUndefined()) {
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return result;
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}
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}
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// fallback to base implementation
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return FrameHostObject::get(runtime, propName);
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}
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void DrawableFrameHostObject::invalidateCanvas() {
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_canvas = nullptr;
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}
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} // namespace vision
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