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Stage.js
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Stage.js
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import {
h,
withDirectives,
ref,
watch,
onMounted,
onBeforeUnmount,
onUpdated,
getCurrentInstance,
reactive,
} from 'vue';
import { applyNodeProps, checkOrder } from '../utils';
export default {
props: {
config: {
type: Object,
default: function () {
return {};
},
},
__useStrictMode: {
type: Boolean,
},
},
inheritAttrs: false,
setup(props, { attrs, slots, expose, emits }) {
const instance = getCurrentInstance();
const oldProps = reactive({});
const container = ref(null);
const __konvaNode = new window.Konva.Stage({
width: props.config.width,
height: props.config.height,
container: document.createElement('div'), // Fake container. Will be replaced
});
instance.__konvaNode = __konvaNode; // Save on component instance
uploadKonva();
function getNode() {
return instance.__konvaNode;
}
function getStage() {
return instance.__konvaNode;
}
function uploadKonva() {
const existingProps = oldProps || {};
const newProps = {
...attrs,
...props.config,
};
applyNodeProps(instance, newProps, existingProps, props.__useStrictMode);
Object.assign(oldProps, newProps);
}
function validateChildren() {
return null;
}
onMounted(() => {
container.value.innerHTML = '';
__konvaNode.container(container.value);
uploadKonva();
validateChildren();
});
onUpdated(() => {
uploadKonva();
checkOrder(instance.subTree, __konvaNode);
});
onBeforeUnmount(() => {
__konvaNode.destroy();
});
watch(() => props.config, uploadKonva, { deep: true });
expose({
getStage,
getNode,
});
// Loop order test appears to be problem with an empty v-for on layer objects
// - When the second item is added to the list we get a Vue internals bug.
// - Possibly related to https://github.com/vuejs/vue-next/issues/2715
return () => h('div', { ref: container }, slots.default?.());
},
};