no message

src/components/lime-painter/components/common/relation.js

@@ -0,0 +1,150 @@
+const styles = (v ='') =>  v.split(';').filter(v => v && !/^[\n\s]+$/.test(v)).map(v => {
+						const key = v.slice(0, v.indexOf(':'))
+						const value = v.slice(v.indexOf(':')+1)
+						return {
+							[key
+								.replace(/-([a-z])/g, function() { return arguments[1].toUpperCase()})
+								.replace(/\s+/g, '')
+							]: value.replace(/^\s+/, '').replace(/\s+$/, '') || ''
+						}
+					})
+export function parent(parent) {
+	return {
+		provide() {
+			return {
+				[parent]: this
+			}
+		},
+		data() {
+			return {
+				el: {
+					id: null,
+					css: {},
+					views: []
+				},
+			}
+		},
+		watch: {
+			css: { 
+				handler(v) {
+					if(this.canvasId) {
+						this.el.css = (typeof v == 'object' ? v : v && Object.assign(...styles(v))) || {}
+						this.canvasWidth = this.el.css && this.el.css.width || this.canvasWidth
+						this.canvasHeight = this.el.css && this.el.css.height || this.canvasHeight
+					}
+				},
+				immediate: true
+			}
+		}
+	}
+}
+export function children(parent, options = {}) {
+	const indexKey = options.indexKey || 'index'
+	return {
+		inject: {
+			[parent]: {
+				default: null
+			}
+		},
+		watch: {
+			el: {
+				handler(v, o) {
+					if(JSON.stringify(v) != JSON.stringify(o))
+						this.bindRelation()
+				},
+				deep: true,
+				immediate: true
+			},
+			src: {
+				handler(v, o) {
+					if(v != o)
+						this.bindRelation()
+				},
+				immediate: true
+			},
+			text: {
+				handler(v, o) {
+					if(v != o) this.bindRelation()
+				},
+				immediate: true
+			},
+			css: {
+				handler(v, o) {
+					if(v != o)
+						this.el.css = (typeof v == 'object' ? v : v && Object.assign(...styles(v))) || {}
+				},
+				immediate: true
+			},
+			replace: {
+				handler(v, o) {
+					if(JSON.stringify(v) != JSON.stringify(o))
+						this.bindRelation()
+				},
+				deep: true,
+				immediate: true
+			}
+		},
+		created() {
+			if(!this._uid) {
+				this._uid = this._.uid
+			}
+			Object.defineProperty(this, 'parent', {
+				get: () => this[parent] || [],
+			})
+			Object.defineProperty(this, 'index', {
+				get: () =>  {
+					this.bindRelation();
+					const {parent: {el: {views=[]}={}}={}} = this
+					return views.indexOf(this.el)
+				},
+			});
+			this.el.type = this.type
+			if(this.uid) {
+				this.el.uid = this.uid
+			}
+			this.bindRelation()
+		},
+		// #ifdef VUE3
+		beforeUnmount() {
+			this.removeEl()
+		},
+		// #endif
+		// #ifdef VUE2
+		beforeDestroy() {
+			this.removeEl()
+		},
+		// #endif
+		methods: {
+			removeEl() {
+				if (this.parent) {
+					this.parent.el.views = this.parent.el.views.filter(
+						(item) => item._uid !== this._uid
+					);
+				}
+			},
+			bindRelation() {
+				if(!this.el._uid) {
+					this.el._uid = this._uid 
+				}
+				if(['text','qrcode'].includes(this.type)) {
+					this.el.text = this.$slots && this.$slots.default && this.$slots.default[0].text || `${this.text || ''}`.replace(/\\n/g, '\n')
+				}
+				if(this.type == 'image') {
+					this.el.src = this.src
+				}
+				if (!this.parent) {
+					return;
+				}
+				let views = this.parent.el.views || [];
+				if(views.indexOf(this.el) !== -1) {
+					this.parent.el.views = views.map(v => v._uid == this._uid ? this.el : v)
+				} else {
+					this.parent.el.views = [...views, this.el];
+				}
+			}
+		},
+		mounted() {
+			// this.bindRelation()
+		},
+	}
+}