feat: add responsive grid layout example

src/components/examples/Responsive.stories.js

@@ -0,0 +1,6 @@
+import Responsive from './Responsive.vue';
+export default { title: 'Examples' };
+export const asAComponentWithResponsiveGridLayout = () => ({
+  components: { Responsive },
+  template: `<Responsive/>`,
+});

src/components/examples/Responsive.vue

@@ -0,0 +1,166 @@
+<template>
+  <div style="width: 100%; height: 2000px">
+    <div class="layoutJSON">
+      Displayed as <code>[x, y, w, h]</code>:
+      <div class="columns">
+        <div v-for="(item, idx) in layout" :key="idx">
+          <b>{{ item.i }}</b
+          >: [{{ item.x }}, {{ item.y }}, {{ item.w }}, {{ item.h }}]
+        </div>
+      </div>
+    </div>
+    <hr />
+    <input v-model="draggable" type="checkbox" /> Draggable
+    <input v-model="resizable" type="checkbox" /> Resizable
+    <input v-model="responsive" type="checkbox" /> Responsive
+    <br />
+    <div style="width: 100%; margin-top: 10px; height: 100%">
+      <grid-layout
+        :layout.sync="layout"
+        :col-num="12"
+        :row-height="30"
+        :is-draggable="draggable"
+        :is-resizable="resizable"
+        :responsive="responsive"
+        :vertical-compact="true"
+        :use-css-transforms="true"
+      >
+        <grid-item
+          v-for="(item, idx) in layout"
+          :key="idx"
+          :static="item.static"
+          :x="item.x"
+          :y="item.y"
+          :w="item.w"
+          :h="item.h"
+          :i="item.i"
+        >
+          <span class="text">{{ item.i }}</span>
+        </grid-item>
+      </grid-layout>
+    </div>
+  </div>
+</template>
+
+<script>
+  import GridLayout from '@/components/GridLayout';
+  import GridItem from '@/components/GridItem';
+  import { ref, defineComponent } from '@vue/composition-api';
+
+  export default defineComponent({
+    components: {
+      GridLayout,
+      GridItem,
+    },
+
+    setup() {
+      const layout = ref([
+        { x: 0, y: 0, w: 2, h: 2, i: '0' },
+        { x: 2, y: 0, w: 2, h: 4, i: '1' },
+        { x: 4, y: 0, w: 2, h: 5, i: '2' },
+        { x: 6, y: 0, w: 2, h: 3, i: '3' },
+        { x: 8, y: 0, w: 2, h: 3, i: '4' },
+        { x: 10, y: 0, w: 2, h: 3, i: '5' },
+        { x: 0, y: 5, w: 2, h: 5, i: '6' },
+        { x: 2, y: 5, w: 2, h: 5, i: '7' },
+        { x: 4, y: 5, w: 2, h: 5, i: '8' },
+        { x: 6, y: 4, w: 2, h: 4, i: '9' },
+        { x: 8, y: 4, w: 2, h: 4, i: '10' },
+        { x: 10, y: 4, w: 2, h: 4, i: '11' },
+        { x: 0, y: 10, w: 2, h: 5, i: '12' },
+        { x: 2, y: 10, w: 2, h: 5, i: '13' },
+        { x: 4, y: 8, w: 2, h: 4, i: '14' },
+        { x: 6, y: 8, w: 2, h: 4, i: '15' },
+        { x: 8, y: 10, w: 2, h: 5, i: '16' },
+        { x: 10, y: 4, w: 2, h: 2, i: '17' },
+        { x: 0, y: 9, w: 2, h: 3, i: '18' },
+        { x: 2, y: 6, w: 2, h: 2, i: '19' },
+      ]);
+
+      const draggable = ref(true);
+      const resizable = ref(true);
+      const responsive = ref(true);
+
+      return {
+        layout,
+        draggable,
+        resizable,
+        responsive,
+      };
+    },
+  });
+</script>
+
+<style scoped>
+  .vue-grid-layout {
+    background: #eee;
+  }
+
+  .vue-grid-item:not(.vue-grid-placeholder) {
+    background: #ccc;
+    border: 1px solid black;
+  }
+
+  .vue-grid-item .resizing {
+    opacity: 0.9;
+  }
+
+  .vue-grid-item .static {
+    background: #cce;
+  }
+
+  .vue-grid-item .text {
+    font-size: 24px;
+    text-align: center;
+    position: absolute;
+    top: 0;
+    bottom: 0;
+    left: 0;
+    right: 0;
+    margin: auto;
+    height: 100%;
+    width: 100%;
+  }
+
+  .vue-grid-item .no-drag {
+    height: 100%;
+    width: 100%;
+  }
+
+  .vue-grid-item .minMax {
+    font-size: 12px;
+  }
+
+  .vue-grid-item .add {
+    cursor: pointer;
+  }
+
+  .vue-draggable-handle {
+    position: absolute;
+    width: 20px;
+    height: 20px;
+    top: 0;
+    left: 0;
+    background: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='10'><circle cx='5' cy='5' r='5' fill='#999999'/></svg>")
+      no-repeat;
+    background-position: bottom right;
+    padding: 0 8px 8px 0;
+    background-repeat: no-repeat;
+    background-origin: content-box;
+    box-sizing: border-box;
+    cursor: pointer;
+  }
+
+  .layoutJSON {
+    background: #ddd;
+    border: 1px solid black;
+    margin-top: 10px;
+    padding: 10px;
+  }
+
+  .columns {
+    -moz-columns: 120px;
+    -webkit-columns: 120px;
+    columns: 120px;
+  }
+</style>