datalets/heatmap-datalet/heatmap-datalet.html

<!--
@license
    The MIT License (MIT)
    Copyright (c) 2015 Dipartimento di Informatica - Università di Salerno - Italy
    Permission is hereby granted, free of charge, to any person obtaining a copy
    of this software and associated documentation files (the "Software"), to deal
    in the Software without restriction, including without limitation the rights
    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    copies of the Software, and to permit persons to whom the Software is
    furnished to do so, subject to the following conditions:
    The above copyright notice and this permission notice shall be included in
    all copies or substantial portions of the Software.
    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    THE SOFTWARE.
-->
<!--
* Developed by :
* ROUTE-TO-PA Project - grant No 645860. - www.routetopa.eu
*
-->
<link rel="import" href="../highcharts-datalet/highcharts-datalet.html">
<script src="js/heatmap.js"></script>
<!--
`heatmap-datalet` is a heat map datalet based on highcharts project <http://www.highcharts.com/>
Example:
    <heatmap-datalet
        data-url="http://ckan.routetopa.eu/api/action/datastore_search?resource_id=#"
        fields='["field1","field2"]'>
    </heatmap-datalet>
@element heatmap-datalet
@status v0.1
@demo demo/index.html
@group datalets
-->
<dom-module id="heatmap-datalet">
    <template>
        <highcharts-datalet id="charts" data-url="{{dataUrl}}" fields="{{fields}}" data="{{data}}" title="{{title}}" description="{{description}}"></highcharts-datalet>
    </template>
    <script>
        var HeatMapBehavior = {
            /**
             * Build Highchart object
             *
             * @method presentData
             */
            presentData: function(){
                var Xcategories = this.properties.categories.value
                var Ycategories = [];
                var series = [];
                for (var i = 0; i < this.properties.series.value.length; i++) {
                    Ycategories.push(this.properties.series.value[i].name);
                    for (var j = 0; j < this.properties.series.value[i].data.length; j++) {
                        series.push([j, i,this.properties.series.value[i].data[j]]);
                    }
                }
                options = {
                    chart: {
                        type: 'heatmap',
                        marginTop: 40,
//                        marginBottom: 80,
                        plotBorderWidth: 1
                    },
                    title: {
                        text: this._component.title
                    },
                    xAxis: {
                        categories: Xcategories,
                        title: {
                            text: this._component.xAxisLabel
                        }
                    },
                    yAxis: {
                        categories: Ycategories,
                        title: {
                            text: this._component.yAxisLabel
                        }
                    },
                    colorAxis: {
                        min: 0,
                        minColor: '#FFFFFF',
                        maxColor: Highcharts.getOptions().colors[0]
                    },
                    legend: {
                        align: 'right',
                        layout: 'vertical',
                        margin: 0,
                        verticalAlign: 'top',
                        y: 25,
                        symbolHeight: 280
                    },
                    tooltip: {
                        valueSuffix: ' ' + this._component.suffix
                    },
                    credits: {
                        enabled: false
                    },
                    series: [{
                        borderWidth: 1,
                        data: series,
                        dataLabels: {
                            enabled: true,
                            color: '#000000'
                        }
                    }]
                };
                if(this._component.theme != "themeBase" && this._component.theme != "")
                    jQuery.extend(true, options, Highcharts[this._component.theme]);
                $(this._component.$.charts.$.container).highcharts(options);
            }
        };
        heatmapDatalet = Polymer({
            is: 'heatmap-datalet',
            properties: {
                /**
                 * It's the label for X axis
                 *
                 * @attribute xAxisLabel
                 * @type String
                 * @default ''
                 */
                xAxisLabel: {
                    type: String,
                    value: ""
                },
                /**
                 * It's the label for Y axis
                 *
                 * @attribute yAxisLabel
                 * @type String
                 * @default ''
                 */
                yAxisLabel: {
                    type: String,
                    value: ""
                },
                /**
                 * It's the values suffix
                 *
                 * @attribute suffix
                 * @type String
                 * @default 'units'
                 */
                suffix : {
                    type : String,
                    value : ""
                },
                theme : {
                    type : String,
                    value : ""
                },
                /**
                 * It's the component behavior
                 *
                 * @attribute behavior
                 * @type Object
                 * @default {}
                 */
                behavior : {
                    type : Object,
                    value : {}
                }
            },
            /**
             * 'ready' callback extend the heatmapComponentBehavior with HighchartsComponentBehavior and heatmapBehavior
             * and run the Datalet workcycle.
             *
             * @method ready
             */
            ready: function(){
                this.behavior = $.extend(true, {}, HighchartsComponentBehavior, HeatMapBehavior);
                this.async(function(){this.behavior.init(this)},0);
            }
        });
    </script>
</dom-module>