Skip to content

Instantly share code, notes, and snippets.

@creativeaura

creativeaura/designer.html

Last active Aug 29, 2015
Embed
What would you like to do?
designer
<link rel="import" href="../core-icon-button/core-icon-button.html">
<link rel="import" href="../core-toolbar/core-toolbar.html">
<link rel="import" href="../core-header-panel/core-header-panel.html">
<polymer-element name="my-element">
<template>
<style>
:host {
position: absolute;
width: 100%;
height: 100%;
box-sizing: border-box;
}
#core_header_panel {
width: 100%;
height: 100%;
left: 0px;
top: 0px;
position: absolute;
}
#core_toolbar {
color: rgb(255, 255, 255);
background-color: rgb(79, 125, 201);
}
#section {
height: 1000px;
background: linear-gradient(rgb(214, 227, 231), rgb(173, 216, 230));
}
#refresh {
position: absolute;
z-index: -1;
bottom: 10px;
pointer-events: none;
will-change: transform;
}
#refresh.snapback {
-webkit-transition: all 100ms ease-out;
transition: all 100ms ease-out;
-webkit-transform: translate3d(0px, 81px, 0px);
transform: translate3d(0px, 81px, 0px);
}
#refresh.snapback.tostart {
-webkit-transform: translate3d(0px, 0px, 0px) !important;
transform: translate3d(0px, 0px, 0px) !important;
}
#refresh.shrink {
-webkit-transform: translate3d(0px, 81px, 0px) scale(0.001);
transform: translate3d(0px, 81px, 0px) scale(0.001);
}
#refresh > div {
width: 22px;
height: 22px;
border-radius: 50%;
padding: 8px;
background: rgb(255, 255, 255);
}
#refresh paper-spinner {
width: 100%;
height: 100%;
opacity: 0;
will-change: opacity;
}
</style>
<core-scroll-header-panel mode="standard" id="core_header_panel" keepcondensedheader condenses="true" fixed="true" on-trackstart="{{ onRefreshStart }}" on-tracky="{{ onMainAreaTrack }}" on-trackend="{{ onRefreshUp }}">
<core-toolbar id="core_toolbar">
<div id="div">Header</div>
<div id="refresh" class="bottom fit" layout horizontal center-center on-transitionend="{{ onRefreshTransitionEnd }}">
<div class="paper-shadow-bottom-z-1">
<paper-spinner id="refreshspinner"></paper-spinner>
</div>
</div>
</core-toolbar>
<section id="section"></section>
</core-scroll-header-panel>
</template>
<script>
Polymer({
onRefreshTransitionEnd: function () {
if (!this.refreshStarted) {
return;
}
this.refreshStarted = false;
if (this.$.refresh.classList.contains('tostart')) {
this.$.refresh.classList.remove('snapback', 'shrink', 'tostart');
return;
}
this.$.refresh.classList.remove('snapback', 'shrink', 'tostart');
this.$.refreshspinner.style.opacity = 0;
},
onRefreshStart: function (e, detail, sender) {
var atTop = this.$.core_header_panel.scroller.scrollTop == 0;
if (atTop && e.yDirection > 0) {
this.refreshStarted = true;
this.$.refreshspinner.active = true;
} else if (!this.refreshStarted) {
this.touchAction = 'pan-y';
}
},
onMainAreaTrack: function (e, detail, sender) {
var y = Math.min(e.dy, this.MAX_REFRESH_Y);
this.$.refreshspinner.style.opacity =
Math.min(1, 1 - ((this.MAX_REFRESH_Y - e.dy) / this.MAX_REFRESH_Y));
var style = this.$.refresh.style;
style.transform = style.webkitTransform = 'translate3d(0, ' + y + 'px, 0)';
if (!this.refreshStarted) {
// TODO(ericbidelman): fake scrolling. We're already in a touch event, and
// scrolling won't kick in until after the user releaes. Ask Dan about this.
this.$.core_header_panel.scroller.scrollTop = Math.abs(e.dy);
}
},
onRefreshUp: function (e, detail, sender) {
if (!this.refreshStarted || this.syncing) {
return;
}
var style = this.$.refresh.style;
style.transform = style.webkitTransform = '';
var threshhold = this.MAX_REFRESH_Y / 2;
if (e.dy >= threshhold) {
this.syncing = true;
this.$.refreshspinner.style.opacity = 1;
this.$.refresh.classList.add('snapback');
} else {
this.$.refresh.classList.add('snapback', 'tostart');
}
}
});
</script>
</polymer-element>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment