draggable-element-controllet.html
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<link rel="import" href="../../bower_components/polymer/polymer.html">
<link rel="import" href="../../bower_components/paper-styles/color.html">
<dom-module id="draggable-element-controllet">
<template>
<style is="custom-style">
.drag-content-target{
height: 12.5em;
width: 13.5em;
font-weight: bolder;
}
.drag-content-source{
height: 1.5em;
width: 12.5em;
/* min-height: 20px;
min-width: 70px;
max-height: 20px;
max-width: 70px;*/
}
.onTrackOnTarget{
position: relative;
float: left;
margin : 0.625em;
height: 1.6em;
width: 13.5em;
background: #fff;
padding: 1em;
border-style: solid;
border-width : 0.2625em;
border-color : var(--paper-blue-500);
border-radius: 0.425rem;
box-shadow: 0 0.325em 0.3125em 0 rgba(0, 0, 0, 0.25);
overflow: hidden;
}
.draggable-card{
position: relative;
float: left;
margin : 0.625em;
height: 1.5em;
width: 13.5em;
border-width : 0.0625em
background: #fff;
border-radius: 0.425rem;
box-shadow: 0 0.325em 0.3125em 0 rgba(0, 0, 0, 0.25);
padding: 1em;
overflow: hidden;
}
.avatar {
display: inline-block;
position: relative;
float: left;
height: 2em;
width: 2em;
border-radius: 50%;
background: var(--paper-blue-500);
color: white;
line-height: 2em;
font-size: 0.9375em;
text-align: center;
}
.heading{
width: 12.5em;
}
.big {
display: inline-block;
position: relative;
float: left;
font-size: 1em;
padding: 0.5em 0.25em 0.5em;
color: var(--google-grey-500);
}
.medium {
font-size: 0.8125em;
padding-bottom: 0px;
display: inline-block;
width: 12.5em;
}
.unselectable {
-webkit-touch-callout: none;
-webkit-user-select: none;
-khtml-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
}
</style>
<template is="dom-if" if="{{isTarget}}">
<div class="drag-content-target" draggable="false">
<div class="card-content">
<div class="heading">
<div class="avatar">{{number}}</div>
<div class="big">{{heading}}</div><br>
</div>
<div class="medium">{{description}}</div>
</div>
<div id="target_dragged_identifier" class='draggable-card dd-content-target unselectable'></div>
</div>
</template>
<template is="dom-if" if="{{!isTarget}}">
<div id="source" class="drag-content-source" draggable="true" ondragstart="event.dataTransfer.setData('text/plain', 'This text may be dragged')" on-track="_handleTrack" on-drag="_handleOnDrag" on-dragstart="_handleStartDrag" on-dragenter="_handleEnterDrag">
<div id="{{identifier}}" class='draggable-card unselectable'>{{label}}</div>
</div>
</template>
</template>
<script>
Polymer({
is: 'draggable-element-controllet',
targets : null,
properties: {
isTarget : {
type : Boolean,
value: false
},
number: {
type: String,
value : "0"
},
heading : {
type : String,
value : "Heading"
},
description: {
type: String,
value: "Description"
},
label : {
type : String,
value : "Label"
},
identifier : {
type : String,
value : ""
},
value : {
type : String,
value : ""
}
},
ready : function(){
},
_handleStartDrag : function(e){
/*var target = EventUtil.getCurrentTarget(e);
target.style.cursor = 'move';*/
return true;
},
_handleEnterDrag : function(e){
/*var target = e.target;
if(target.draggable == false && (target.className.indexOf("dd-content-target") != -1)){
target.parentNode.parentNode.value = e.srcElement.id;
target.innerHTML = e.srcElement.innerText;
this.fire('draggable-element-controllet_content-dragged', {target: target, source: e.srcElement});
}
for (var i = 0; i < this.targets.length; i++) {
this.targets[i].children[0].children[1].className = "draggable-card dd-content-target unselectable style-scope draggable-element-controllet";
}*/
return false;
},
_handleOnDrag : function(e){
this.targets = document.querySelectorAll('draggable-element-controllet[is-target=true]');
for (var i = 0; i < this.targets.length; i++) {
this.targets[i].children[0].children[1].className = "onTrackOnTarget dd-content-target unselectable style-scope draggable-element-controllet";
}
},
_handleTrack : function(e) {
switch(e.detail.state) {
case 'start':
break;
case 'track':
break;
case 'end':
var target = e.detail.hover();
if(target.draggable == false && (target.className.indexOf("dd-content-target") != -1)){
target.parentNode.parentNode.value = e.target.id;
target.innerHTML = e.target.innerHTML;
this.fire('draggable-element-controllet_content-dragged', {target: target, source: e.target});
}
for (var i = 0; i < this.targets.length; i++) {
this.targets[i].children[0].children[1].className = "draggable-card dd-content-target unselectable style-scope draggable-element-controllet";
}
break;
}
}
});
</script>
</dom-module>