[improvement] rename packages dir to src (#3659)

src/swipe-item/index.js

@@ -0,0 +1,35 @@
+import { createNamespace } from '../utils';
+
+const [createComponent, bem] = createNamespace('swipe-item');
+
+export default createComponent({
+  data() {
+    return {
+      offset: 0
+    };
+  },
+
+  beforeCreate() {
+    this.$parent.swipes.push(this);
+  },
+
+  destroyed() {
+    this.$parent.swipes.splice(this.$parent.swipes.indexOf(this), 1);
+  },
+
+  render(h) {
+    const { vertical, computedWidth, computedHeight } = this.$parent;
+
+    const style = {
+      width: computedWidth + 'px',
+      height: vertical ? computedHeight + 'px' : '100%',
+      transform: `translate${vertical ? 'Y' : 'X'}(${this.offset}px)`
+    };
+
+    return (
+      <div class={bem()} style={style} {...{ on: this.$listeners }}>
+        {this.slots()}
+      </div>
+    );
+  }
+});

src/swipe-item/index.less

@@ -0,0 +1,6 @@
+@import '../style/var';
+
+.van-swipe-item {
+  float: left;
+  height: 100%;
+}