areachart-datalet.html 7.44 KB
<!--
@license
    The MIT License (MIT)

    Copyright (c) 2015 Dipartimento di Informatica - Universit� 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
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    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,
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    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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    THE SOFTWARE.
-->

<!--
* Developed by :
* ROUTE-TO-PA Project - grant No 645860. - www.routetopa.eu
*
-->

<link rel="import" href="../highcharts-datalet/highcharts-datalet.html">

<!--

`areachart-datalet` is an areachart datalet based on highcharts project <http://www.highcharts.com/>

Example:

    <areachart-datalet
            data-url="http://ckan.routetopa.eu/api/action/datastore_search?resource_id=#"
            fields='["field1","field2"]'>
    </areachart-datalet>

@element areachart-datalet
@status v0.1
@demo demo/index.html
@group datalets
-->

<dom-module id="areachart-datalet">
    <template>
        <highcharts-datalet id="charts" data-url="{{dataUrl}}" fields="{{fields}}" title="{{title}}" description="{{description}}" export_menu="{{export_menu}}"></highcharts-datalet>
    </template>
    <script>

        var AreachartBehavior = {

            /**
             * Bluid Highchart object
             *
             * @method transformData
             */
            presentData: function(){
                var min = 0;
                for (var i in this.properties.series.value) {
                    min = Math.min(Math.min.apply(Math, this.properties.series.value[i].data), min);
                }
                if(min < 0)
                    min--;

                options = {
                    chart: {
                        type: 'area',
                        zoomType: 'xy'
                    },
                    title: {
                        text: this._component.title
                    },
                    xAxis: {
                        categories: this.properties.categories.value,
                        title: {
                            text: this._component.xAxisLabel
                        }
                    },
                    yAxis: {
                        min: min,
                        title: {
                            text: this._component.yAxisLabel,
                        }
                    },
                    tooltip: {
                        valueSuffix: ' ' + this._component.suffix
                    },
                    plotOptions: {
                        series: {
                            stacking: this._component.stack
                        },
                        area: {
                            dataLabels: {
                                enabled: this._component.dataLabels
                            },
                            marker: {
                                enabled: false,
                                symbol: 'circle',
                                radius: 2,
                                states: {
                                    hover: {
                                        enabled: true
                                    }
                                }
                            }
                        }
                    },
                    credits: {
                        enabled: false
                    },
                    series: this.properties.series.value
                };

                if(this._component.theme != "themeBase" && this._component.theme != "")
                    jQuery.extend(true, options, Highcharts[this._component.theme]);

                if(this._component.legend == "topRight")
                    options.legend = {
                        layout: 'vertical',
                        verticalAlign: 'top',
                        align: 'right',
                        x: -4,
                        y: 4,
                        floating: true,
                        borderWidth: 1,
                        backgroundColor: ((Highcharts[this._component.theme] && Highcharts[this._component.theme].legendBackgroundColor) || '#FFFFFF'),
                        shadow: true
                    };
                else if(this._component.legend == "bottom")
                    options.legend = {
                        enabled: true
                    };
                else
                    options.legend ={
                        enabled: false
                    };

                $(this._component.$.charts.$.container).highcharts(options);
            }
        };

        //element registration
        AreachartDatalet = Polymer({
            is: 'areachart-datalet',

            properties: {
                data: {
                    type: Array,
                    value: undefined
                },
                xAxisLabel: {
                    type: String,
                    value: ""
                },
                yAxisLabel: {
                    type: String,
                    value: ""
                },
                suffix : {
                    type : String,
                    value : ""
                },
                legend : {
                    type : Object,
                    value : "topRight"
                },
                dataLabels : {
                    type : Object,
                    value : true
                },
                stack : {
                    type : Object,
                    value : false
                },
                theme : {
                    type : String,
                    value : ""
                },
                behavior : {
                    type : Object,
                    value : {}
                },
                /**
                 * Control the export menu
                 * xxxx BITMASK. FROM RIGHT : HTML, PNG, RTF, MY SPACE (eg. 1111 show all, 0000 hide all)
                 *
                 * @attribute export_menu
                 * @type Number
                 * @default 15
                 */
                export_menu : {
                    type  : Number,
                    value : 15 // xxxx BITMASK. FROM RIGHT : HTML, PNG, RTF, MY SPACE (eg. 1111 show all, 0000 hide all)
                }
            },

            /**
             * 'ready' callback extend the AreachartComponentBehavior with HighchartsComponentBehavior and ColumnchartBehavior
             * and run the Datalet workcycle.
             *
             * @method ready
             */
            ready: function(){
                this.behavior = $.extend(true, {}, HighchartsComponentBehavior, AreachartBehavior);
                this.async(function(){this.behavior.init(this)},0);
            }
        });
    </script>
</dom-module>