github.com/insionng/yougam@v0.0.0-20170714101924-2bc18d833463/public/libs/vue-1.0.24/examples/elastic-header/index.html (about)

     1  <!DOCTYPE html>
     2  <html lang="en">
     3    <head>
     4      <meta charset="utf-8">
     5      <meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no">
     6      <title></title>
     7      <script src="../../dist/vue.js"></script>
     8      <script src="http://dynamicsjs.com/lib/dynamics.js"></script>
     9      <link rel="stylesheet" href="style.css">
    10      <!-- template for the component -->
    11      <script type="x/template" id="header-view-template">
    12        <div class="draggable-header-view"
    13          @mousedown="startDrag" @touchstart="startDrag"
    14          @mousemove="onDrag" @touchmove="onDrag"
    15          @mouseup="stopDrag" @touchend="stopDrag" @mouseleave="stopDrag">
    16          <svg class="bg" width="320" height="560">
    17            <path :d="headerPath" fill="#3F51B5"></path>
    18          </svg>
    19          <div class="header">
    20            <slot name="header"></slot>
    21          </div>
    22          <div class="content" :style="contentPosition">
    23            <slot name="content"></slot>
    24          </div>
    25        </div>
    26      </script>
    27    </head>
    28    <body @touchmove.prevent>
    29  
    30      <draggable-header-view>
    31        <template slot="header">
    32          <h1>Elastic Draggable SVG Header</h1>
    33          <p>with <a href="http://vuejs.org">Vue.js</a> + <a href="http://dynamicsjs.com">dynamics.js</a></p>
    34        </template>
    35        <template slot="content">
    36          <p>Note this is just an effect demo - there are of course many additional details if you want to use this in production, e.g. handling responsive sizes, reload threshold and content scrolling. Those are out of scope for this quick little hack. However, the idea is that you can hide them as internal details of a Vue.js component and expose a simple Web-Component-like interface.</p>
    37        </template>
    38      </draggable-header-view>
    39  
    40      <script>
    41      Vue.component('draggable-header-view', {
    42        template: '#header-view-template',
    43        data: function () {
    44          return {
    45            dragging: false,
    46            // quadratic bezier control point
    47            c: { x: 160, y: 160 },
    48            // record drag start point
    49            start: { x: 0, y: 0 }
    50          }
    51        },
    52        computed: {
    53          headerPath: function () {
    54            return 'M0,0 L320,0 320,160' +
    55              'Q' + this.c.x + ',' + this.c.y +
    56              ' 0,160'
    57          },
    58          contentPosition: function () {
    59            var dy = this.c.y - 160
    60            var dampen = dy > 0 ? 2 : 4
    61            return {
    62              transform: 'translate3d(0,' + dy / dampen + 'px,0)'
    63            }
    64          }
    65        },
    66        methods: {
    67          startDrag: function (e) {
    68            e = e.changedTouches ? e.changedTouches[0] : e
    69            this.dragging = true
    70            this.start.x = e.pageX
    71            this.start.y = e.pageY
    72          },
    73          onDrag: function (e) {
    74            e = e.changedTouches ? e.changedTouches[0] : e
    75            if (this.dragging) {
    76              this.c.x = 160 + (e.pageX - this.start.x)
    77              // dampen vertical drag by a factor
    78              var dy = e.pageY - this.start.y
    79              var dampen = dy > 0 ? 1.5 : 4
    80              this.c.y = 160 + dy / dampen
    81            }
    82          },
    83          stopDrag: function () {
    84            if (this.dragging) {
    85              this.dragging = false
    86              dynamics.animate(this.c, {
    87                x: 160,
    88                y: 160
    89              }, {
    90                type: dynamics.spring,
    91                duration: 700,
    92                friction: 280
    93              })
    94            }
    95          }
    96        }
    97      })
    98  
    99      new Vue({ el: 'body' })
   100      </script>
   101    </body>
   102  </html>