[improvement] Rate: jsx (#2619)

packages/rate/index.js

@@ -0,0 +1,94 @@
+/* eslint-disable prefer-spread */
+import { use } from '../utils';
+import Icon from '../icon';
+
+const [sfc, bem] = use('rate');
+
+export default sfc({
+  props: {
+    value: Number,
+    readonly: Boolean,
+    disabled: Boolean,
+    size: {
+      type: Number,
+      default: 20
+    },
+    icon: {
+      type: String,
+      default: 'star'
+    },
+    voidIcon: {
+      type: String,
+      default: 'star-o'
+    },
+    color: {
+      type: String,
+      default: '#ffd21e'
+    },
+    voidColor: {
+      type: String,
+      default: '#c7c7c7'
+    },
+    disabledColor: {
+      type: String,
+      default: '#bdbdbd'
+    },
+    count: {
+      type: Number,
+      default: 5
+    }
+  },
+
+  computed: {
+    list() {
+      return Array.apply(null, { length: this.count }).map((value, index) => index < this.value);
+    }
+  },
+
+  methods: {
+    onSelect(index) {
+      if (!this.disabled && !this.readonly) {
+        this.$emit('input', index + 1);
+        this.$emit('change', index + 1);
+      }
+    },
+
+    onTouchMove(event) {
+      if (!document.elementFromPoint) {
+        return;
+      }
+
+      event.preventDefault();
+      const { clientX, clientY } = event.touches[0];
+      const target = document.elementFromPoint(clientX, clientY);
+      if (target && target.dataset) {
+        const { index } = target.dataset;
+
+        /* istanbul ignore else */
+        if (index) {
+          this.onSelect(+index);
+        }
+      }
+    }
+  },
+
+  render(h) {
+    return (
+      <div class={bem()} onTouchmove={this.onTouchMove}>
+        {this.list.map((full, index) => (
+          <Icon
+            key={index}
+            class={bem('item')}
+            size={`${this.size}px`}
+            data-index={index}
+            name={full ? this.icon : this.voidIcon}
+            color={this.disabled ? this.disabledColor : full ? this.color : this.voidColor}
+            onClick={() => {
+              this.onSelect(index);
+            }}
+          />
+        ))}
+      </div>
+    );
+  }
+});