初始化（包含登录模块）

components/mpvue-echarts/src/echarts.vue

@@ -0,0 +1,123 @@
+<template>
+	<canvas v-if="canvasId" class="ec-canvas" :id="canvasId" :canvasId="canvasId" @touchstart="touchStart" @touchmove="touchMove" @touchend="touchEnd" @error="error"></canvas>
+</template>
+
+<script>
+import WxCanvas from './wx-canvas';
+
+export default {
+	props: {
+		canvasId: {
+			type: String,
+			default: 'ec-canvas'
+		},
+		lazyLoad: {
+			type: Boolean,
+			default: false
+		},
+		disableTouch: {
+			type: Boolean,
+			default: false
+		},
+		throttleTouch: {
+			type: Boolean,
+			default: false
+		}
+	},
+	// #ifdef H5
+	mounted() {
+		if (!this.lazyLoad) this.init();
+	},
+	// #endif
+	// #ifndef H5
+	onReady() {
+		if (!this.lazyLoad) this.init();
+	},
+	// #endif
+	methods: {
+		setChart(chart){
+			this.chart = chart
+		},
+		init() {
+			const { canvasId } = this;
+			this.ctx = wx.createCanvasContext(canvasId, this);
+
+			this.canvas = new WxCanvas(this.ctx, canvasId);
+
+			const query = wx.createSelectorQuery().in(this);
+			query
+				.select(`#${canvasId}`)
+				.boundingClientRect(res => {
+					if (!res) {
+						setTimeout(() => this.init(), 50);
+						return;
+					}
+					this.$emit('onInit', {
+						width: res.width,
+						height: res.height
+					});
+				})
+				.exec();
+		},
+		canvasToTempFilePath(opt) {
+			const { canvasId } = this;
+			this.ctx.draw(true, () => {
+				wx.canvasToTempFilePath({
+					canvasId,
+					...opt
+				});
+			});
+		},
+		touchStart(e) {
+			const { disableTouch, chart } = this;
+			if (disableTouch || !chart || !e.mp.touches.length) return;
+			const touch = e.mp.touches[0];
+			chart._zr.handler.dispatch('mousedown', {
+				zrX: touch.x,
+				zrY: touch.y
+			});
+			chart._zr.handler.dispatch('mousemove', {
+				zrX: touch.x,
+				zrY: touch.y
+			});
+		},
+		touchMove(e) {
+			const { disableTouch, throttleTouch, chart, lastMoveTime } = this;
+			if (disableTouch || !chart || !e.mp.touches.length) return;
+
+			if (throttleTouch) {
+				const currMoveTime = Date.now();
+				if (currMoveTime - lastMoveTime < 240) return;
+				this.lastMoveTime = currMoveTime;
+			}
+
+			const touch = e.mp.touches[0];
+			chart._zr.handler.dispatch('mousemove', {
+				zrX: touch.x,
+				zrY: touch.y
+			});
+		},
+		touchEnd(e) {
+			const { disableTouch, chart } = this;
+			if (disableTouch || !chart) return;
+			const touch = e.mp.changedTouches ? e.mp.changedTouches[0] : {};
+			chart._zr.handler.dispatch('mouseup', {
+				zrX: touch.x,
+				zrY: touch.y
+			});
+			chart._zr.handler.dispatch('click', {
+				zrX: touch.x,
+				zrY: touch.y
+			});
+		}
+	}
+};
+</script>
+
+<style scoped>
+.ec-canvas {
+	width: 100%;
+	height: 100%;
+	flex: 1;
+}
+</style>

components/mpvue-echarts/src/wx-canvas.js

@@ -0,0 +1,73 @@
+export default class WxCanvas {
+  constructor(ctx, canvasId) {
+    this.ctx = ctx;
+    this.canvasId = canvasId;
+    this.chart = null;
+
+    WxCanvas.initStyle(ctx);
+    this.initEvent();
+  }
+
+  getContext(contextType) {
+    return contextType === '2d' ? this.ctx : null;
+  }
+
+  setChart(chart) {
+    this.chart = chart;
+  }
+
+  attachEvent() {
+    // noop
+  }
+
+  detachEvent() {
+    // noop
+  }
+
+  static initStyle(ctx) {
+    const styles = ['fillStyle', 'strokeStyle', 'globalAlpha',
+      'textAlign', 'textBaseAlign', 'shadow', 'lineWidth',
+      'lineCap', 'lineJoin', 'lineDash', 'miterLimit', 'fontSize'];
+
+    styles.forEach((style) => {
+      Object.defineProperty(ctx, style, {
+        set: (value) => {
+          if ((style !== 'fillStyle' && style !== 'strokeStyle')
+            || (value !== 'none' && value !== null)
+          ) {
+            ctx[`set${style.charAt(0).toUpperCase()}${style.slice(1)}`](value);
+          }
+        },
+      });
+    });
+
+    ctx.createRadialGradient = () => ctx.createCircularGradient(arguments);
+  }
+
+  initEvent() {
+    this.event = {};
+    const eventNames = [{
+      wxName: 'touchStart',
+      ecName: 'mousedown',
+    }, {
+      wxName: 'touchMove',
+      ecName: 'mousemove',
+    }, {
+      wxName: 'touchEnd',
+      ecName: 'mouseup',
+    }, {
+      wxName: 'touchEnd',
+      ecName: 'click',
+    }];
+
+    eventNames.forEach((name) => {
+      this.event[name.wxName] = (e) => {
+        const touch = e.mp.touches[0];
+        this.chart._zr.handler.dispatch(name.ecName, {
+          zrX: name.wxName === 'tap' ? touch.clientX : touch.x,
+          zrY: name.wxName === 'tap' ? touch.clientY : touch.y,
+        });
+      };
+    });
+  }
+}