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<link rel="import" href="../polymer/polymer.html">
<script src="./Sortable.js"></script>
<dom-module id="sortable-js">
<template>
<content></content>
</template>
</dom-module>
<script>
Polymer({
is: "sortable-js",
properties: {
group : { type: String, value: () => Math.random(), observer: "groupChanged" },
sort : { type: Boolean, value: true, observer: "sortChanged" },
disabled : { type: Boolean, value: false, observer: "disabledChanged" },
store : { type: Object, value: null, observer: "storeChanged" },
handle : { type: String, value: null, observer: "handleChanged" },
scrollSensitivity : { type: Number, value: 30, observer: "scrollSensitivityChanged" },
scrollSpeed : { type: Number, value: 10, observer: "scrollSpeedChanged" },
ghostClass : { type: String, value: "sortable-ghost", observer: "ghostClassChanged" },
chosenClass : { type: String, value: "sortable-chosen", observer: "chosenClassChanged" },
ignore : { type: String, value: "a, img", observer: "ignoreChanged" },
filter : { type: Object, value: null, observer: "filterChanged" },
animation : { type: Number, value: 0, observer: "animationChanged" },
dropBubble : { type: Boolean, value: false, observer: "dropBubbleChanged" },
dragoverBubble : { type: Boolean, value: false, observer: "dragoverBubbleChanged" },
dataIdAttr : { type: String, value: "data-id", observer: "dataIdAttrChanged" },
delay : { type: Number, value: 0, observer: "delayChanged" },
forceFallback : { type: Boolean, value: false, observer: "forceFallbackChanged" },
fallbackClass : { type: String, value: "sortable-fallback", observer: "fallbackClassChanged" },
fallbackOnBody : { type: Boolean, value: false, observer: "fallbackOnBodyChanged" },
draggable : {},
scroll : {}
},
created() {
// override default DOM property behavior
Object.defineProperties(this, {
draggable: { get() { return this._draggable || this.getAttribute("draggable") || ">*"}, set(value) { this._draggable = value; this.draggableChanged(value)} },
scroll: { get() { return this._scroll || JSON.parse(this.getAttribute("scroll") || "true") }, set(value) { this._scroll = value; this.scrollChanged(value)} }
})
},
attached: function() {
// Given
// <sortable-js>
// <template is="dom-repeat" items={{data}}>
// <div>
// <template is="dom-if" if="true">
// <span>hello</span></template></div>
// After render, it becomes
// <sortable-js>
// <div>
// <span>hello</span>
// <template is="dom-if">
// <tempalte is="dom-repeat">
this.initialize();
},
detached: function() {
this.destroy()
},
initialize: function() {
var templates = this.querySelectorAll("template[is='dom-repeat']")
var template = templates[templates.length-1]
var options = {}
Object.keys(this.properties).forEach(key => {
options[key] = this[key]
})
this.sortable = Sortable.create(this, Object.assign(options, {
onUpdate: e => {
if (template) {
template.items.splice(e.newIndex, 0, template.items.splice(e.oldIndex, 1)[0]);
}
this.fire("update", e)
},
onAdd: e => {
if (template) {
var froms = e.from.querySelectorAll("template[is='dom-repeat']")
var from = froms[froms.length-1]
var item = from.items[e.oldIndex]
template.splice("items", e.newIndex, 0, item)
}
this.fire("add", e)
},
onRemove: e => {
if (template) {
template.splice("items", e.oldIndex, 1)[0]
}
this.fire("remove", e)
},
onStart: e => {
this.fire("start", e)
},
onEnd: e => {
this.fire("end", e)
},
onSort: e => {
this.fire("sort", e)
},
onFilter: e => {
this.fire("filter", e)
},
onMove: e => {
this.fire("move", e)
}
}))
},
destroy: function() {
if(this.sortable) {
this.sortable.destroy()
}
},
groupChanged : function(value) { this.sortable && this.sortable.option("group", value) },
sortChanged : function(value) { this.sortable && this.sortable.option("sort", value) },
disabledChanged : function(value) { this.sortable && this.sortable.option("disabled", value) },
storeChanged : function(value) { this.sortable && this.sortable.option("store", value) },
handleChanged : function(value) { this.sortable && this.sortable.option("handle", value) },
scrollChanged : function(value) { this.sortable && this.sortable.option("scroll", value) },
scrollSensitivityChanged : function(value) { this.sortable && this.sortable.option("scrollSensitivity", value) },
scrollSpeedChanged : function(value) { this.sortable && this.sortable.option("scrollSpeed", value) },
draggableChanged : function(value) { this.sortable && this.sortable.option("draggable", value) },
ghostClassChanged : function(value) { this.sortable && this.sortable.option("ghostClass", value) },
chosenClassChanged : function(value) { this.sortable && this.sortable.option("chosenClass", value) },
ignoreChanged : function(value) { this.sortable && this.sortable.option("ignore", value) },
filterChanged : function(value) { this.sortable && this.sortable.option("filter", value) },
animationChanged : function(value) { this.sortable && this.sortable.option("animation", value) },
dropBubbleChanged : function(value) { this.sortable && this.sortable.option("dropBubble", value) },
dragoverBubbleChanged : function(value) { this.sortable && this.sortable.option("dragoverBubble", value) },
dataIdAttrChanged : function(value) { this.sortable && this.sortable.option("dataIdAttr", value) },
delayChanged : function(value) { this.sortable && this.sortable.option("delay", value) },
forceFallbackChanged : function(value) { this.sortable && this.sortable.option("forceFallback", value) },
fallbackClassChanged : function(value) { this.sortable && this.sortable.option("fallbackClass", value) },
fallbackOnBodyChanged : function(value) { this.sortable && this.sortable.option("fallbackOnBody", value) }
})
</script>