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Vue.js/examples/elastic-header/index.html

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add examples
9 years ago
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no">
improve examples title (#4337) NOTE: consistently keep the examples of vuejs.org. https://vuejs.org/v2/examples/
8 years ago
<title>Vue.js elastic header example</title>
fix root v-else not rendering in prod and switched examples to minified vue for better prod coverage (#3943) * fix root v-else not rendering in production and switched examples to minified vue for better prod coverage * add dev build comment to examples * convert tabs to spaces in todomvc example for consistency
8 years ago
<!-- Delete ".min" for console warnings in development -->
<script src="../../dist/vue.min.js"></script>
add examples
9 years ago
<script src="http://dynamicsjs.com/lib/dynamics.js"></script>
<link rel="stylesheet" href="style.css">
<!-- template for the component -->
setting up e2e
9 years ago
<script type="text/x-template" id="header-view-template">
add examples
9 years ago
<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>
</head>
<body>
<div id="app" @touchmove.prevent>
<draggable-header-view>
<template slot="header">
<h1>Elastic Draggable SVG Header</h1>
Switch to https (#3864) Replaced all http vuejs.org links with https instead.
8 years ago
<p>with <a href="https://vuejs.org">Vue.js</a> + <a href="http://dynamicsjs.com">dynamics.js</a></p>
add examples
9 years ago
</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>
<script>
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' })
</script>
</body>
</html>