144 lines
4.2 KiB
JavaScript
144 lines
4.2 KiB
JavaScript
/* Copyright (c) 2019 Jean-Marc VIGLINO,
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released under the CeCILL-B license (French BSD license)
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(http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.txt).
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*/
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import ol_control_SelectBase from './SelectBase.js'
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import ol_ext_element from '../util/element.js'
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/**
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* Select features by property using a popup
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*
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* @constructor
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* @extends {ol_control_SelectBase}
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* @fires select
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* @param {Object=} options
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* @param {string} options.className control class name
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* @param {Element | undefined} options.target Specify a target if you want the control to be rendered outside of the map's viewport.
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* @param {ol/source/Vector | Array<ol/source/Vector>} options.source the source to search in
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* @param {string} options.property property to select on
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* @param {number} options.max max feature to test to get the values, default 10000
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* @param {number} options.selectAll select all features if no option selected
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* @param {string} options.defaultLabel label for the default selection
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* @param {function|undefined} options.onchoice function triggered when an option is clicked, default doSelect
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*/
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var ol_control_SelectPopup = class olcontrolSelectPopup extends ol_control_SelectBase {
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constructor(options) {
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options = options || {};
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options.className = options.className || 'ol-select-popup';
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// Container
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var div = options.content = ol_ext_element.create('DIV');
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super(options);
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var bt = div.querySelector('button');
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if (options.label) {
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ol_ext_element.create('LABEL', {
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html: options.label,
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parent: div
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});
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}
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this._input = ol_ext_element.create('SELECT', {
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on: {
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change: function () {
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if (this._onchoice)
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this._onchoice();
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else
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this.doSelect();
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}.bind(this)
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},
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parent: div
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});
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// Add ok button at the end
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div.appendChild(bt);
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this.set('property', options.property || 'name');
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this.set('max', options.max || 10000);
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this.set('defaultLabel', options.defaultLabel);
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this._selectAll = options.selectAll;
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this._onchoice = options.onchoice;
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// Set select options
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this.setValues();
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}
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/**
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* Set the map instance the control associated with.
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* @param {o.Map} map The map instance.
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*/
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setMap(map) {
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super.setMap(map);
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this.setValues();
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}
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/** Select features by attributes
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*/
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doSelect(options) {
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options = options || {};
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if (!this._input.value) {
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return super.doSelect({ features: options.features, matchAll: this._selectAll });
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} else {
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return super.doSelect({
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features: options.features,
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conditions: [{
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attr: this.get('property'),
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op: '=',
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val: this._input.value
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}]
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});
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}
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}
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/** Set the popup values
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* @param {Object} [values] a key/value list with key = property value, value = title shown in the popup, default search values in the sources
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* @param {boolean} [sort] true to sort the values
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*/
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setValues(options) {
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options = options || {};
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var values, vals;
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if (options.values) {
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if (options.values instanceof Array) {
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vals = {};
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options.values.forEach(function (v) { vals[v] = v; });
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} else {
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vals = options.values;
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}
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} else {
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vals = {};
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var prop = this.get('property');
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this.getSources().forEach(function (s) {
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var features = s.getFeatures();
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var max = Math.min(features.length, this.get('max'));
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for (var i = 0; i < max; i++) {
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var p = features[i].get(prop);
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if (p)
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vals[p] = p;
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}
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}.bind(this));
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}
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if (options.sort) {
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values = {};
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Object.keys(vals).sort().forEach(function (key) {
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values[key] = vals[key];
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});
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} else {
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values = vals;
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}
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ol_ext_element.setHTML(this._input, '');
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ol_ext_element.create('OPTION', {
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className: 'ol-default',
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html: this.get('defaultLabel') || '',
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value: '',
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parent: this._input
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});
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for (var k in values) {
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ol_ext_element.create('OPTION', {
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html: values[k],
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value: k,
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parent: this._input
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});
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}
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}
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}
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export default ol_control_SelectPopup
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