Created
March 12, 2018 17:29
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Save anonymous/72ed75bfb9a2358e4d1e4410f842b1be to your computer and use it in GitHub Desktop.
(source: https://jsfiddle.net/yyx990803/y91wy85p/?utm_source=website&utm_medium=embed&utm_campaign=y91wy85p)
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| h1 { | |
| font-weight: 300; | |
| font-size: 1.8em; | |
| margin-top: 0; | |
| } | |
| a { | |
| color: #fff; | |
| } | |
| .draggable-header-view { | |
| background-color: #fff; | |
| box-shadow: 0 4px 16px rgba(0,0,0,.15); | |
| width: 320px; | |
| height: 560px; | |
| overflow: hidden; | |
| margin: 30px auto; | |
| position: relative; | |
| font-family: 'Roboto', Helvetica, Arial, sans-serif; | |
| color: #fff; | |
| font-size: 14px; | |
| font-weight: 300; | |
| -webkit-user-select: none; | |
| -moz-user-select: none; | |
| -ms-user-select: none; | |
| user-select: none; | |
| } | |
| .draggable-header-view .bg { | |
| position: absolute; | |
| top: 0; | |
| left: 0; | |
| z-index: 0; | |
| } | |
| .draggable-header-view .header, .draggable-header-view .content { | |
| position: relative; | |
| z-index: 1; | |
| padding: 30px; | |
| box-sizing: border-box; | |
| } | |
| .draggable-header-view .header { | |
| height: 160px; | |
| } | |
| .draggable-header-view .content { | |
| color: #333; | |
| line-height: 1.5em; | |
| } |
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| <!-- template for the component --> | |
| <script type="text/x-template" id="header-view-template"> | |
| <div class="draggable-header-view" | |
| @mousedown="startDrag" @touchstart="startDrag" | |
| @mousemove="onDrag" @touchmove="onDrag" | |
| @mouseup="stopDrag" @touchend="stopDrag" @mouseleave="stopDrag"> | |
| <svg class="bg" width="320" height="560"> | |
| <path :d="headerPath" fill="#3F51B5"></path> | |
| </svg> | |
| <div class="header"> | |
| <slot name="header"></slot> | |
| </div> | |
| <div class="content" :style="contentPosition"> | |
| <slot name="content"></slot> | |
| </div> | |
| </div> | |
| </script> | |
| <div id="app" @touchmove.prevent> | |
| <draggable-header-view> | |
| <template slot="header"> | |
| <h1>Elastic Draggable SVG Header</h1> | |
| <p>with <a href="http://vuejs.org">Vue.js</a> + <a href="http://dynamicsjs.com">dynamics.js</a></p> | |
| </template> | |
| <template slot="content"> | |
| <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> | |
| </template> | |
| </draggable-header-view> | |
| </div> |
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| Vue.component('draggable-header-view', { | |
| template: '#header-view-template', | |
| data: function () { | |
| return { | |
| dragging: false, | |
| // quadratic bezier control point | |
| c: { x: 160, y: 160 }, | |
| // record drag start point | |
| start: { x: 0, y: 0 } | |
| } | |
| }, | |
| computed: { | |
| headerPath: function () { | |
| return 'M0,0 L320,0 320,160' + | |
| 'Q' + this.c.x + ',' + this.c.y + | |
| ' 0,160' | |
| }, | |
| contentPosition: function () { | |
| var dy = this.c.y - 160 | |
| var dampen = dy > 0 ? 2 : 4 | |
| return { | |
| transform: 'translate3d(0,' + dy / dampen + 'px,0)' | |
| } | |
| } | |
| }, | |
| methods: { | |
| startDrag: function (e) { | |
| e = e.changedTouches ? e.changedTouches[0] : e | |
| this.dragging = true | |
| this.start.x = e.pageX | |
| this.start.y = e.pageY | |
| }, | |
| onDrag: function (e) { | |
| e = e.changedTouches ? e.changedTouches[0] : e | |
| if (this.dragging) { | |
| this.c.x = 160 + (e.pageX - this.start.x) | |
| // dampen vertical drag by a factor | |
| var dy = e.pageY - this.start.y | |
| var dampen = dy > 0 ? 1.5 : 4 | |
| this.c.y = 160 + dy / dampen | |
| } | |
| }, | |
| stopDrag: function () { | |
| if (this.dragging) { | |
| this.dragging = false | |
| dynamics.animate(this.c, { | |
| x: 160, | |
| y: 160 | |
| }, { | |
| type: dynamics.spring, | |
| duration: 700, | |
| friction: 280 | |
| }) | |
| } | |
| } | |
| } | |
| }) | |
| new Vue({ el: '#app' }) |
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