86 lines
2.9 KiB
JavaScript
86 lines
2.9 KiB
JavaScript
/*
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU AFFERO General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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or see http://www.gnu.org/licenses/agpl.txt.
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*/
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// queryable Layers control
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// [simply Control.Layers extended by query functions and some fixes for touch screens]
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L.Control.QueryableLayers = L.Control.Layers.extend({
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// changes to leaflet behaviour
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_initLayout: function () {
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this._container = L.DomUtil.create('div', 'leaflet-control-layers');
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L.DomEvent.disableClickPropagation(this._container); // change to Leaflet: always disable click propagation
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this._form = L.DomUtil.create('form', 'leaflet-control-layers-list');
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if (this.options.collapsed) {
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L.DomEvent.addListener(this._container, 'mouseover', this._expand, this);
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L.DomEvent.addListener(this._container, 'mouseout', this._collapse, this);
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var link = this._layersLink = L.DomUtil.create('a', 'leaflet-control-layers-toggle');
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link.href = '#';
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link.title = 'Layers';
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if (L.Browser.touch) {
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L.DomEvent.addListener(link, 'click', this._expand, this);
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L.DomEvent.disableClickPropagation(link); // change to Leaflet: disable click propagation
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} else {
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L.DomEvent.addListener(link, 'focus', this._expand, this);
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}
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this._map.on('movestart', this._collapse, this);
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// TODO keyboard accessibility
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this._container.appendChild(link);
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} else {
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this._expand();
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}
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this._baseLayersList = L.DomUtil.create('div', 'leaflet-control-layers-base', this._form);
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this._separator = L.DomUtil.create('div', 'leaflet-control-layers-separator', this._form);
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this._overlaysList = L.DomUtil.create('div', 'leaflet-control-layers-overlays', this._form);
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this._container.appendChild(this._form);
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},
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// new query functionality
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getActiveLayerName: function () {
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var i, input, obj,
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inputs = this._form.getElementsByTagName('input'),
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inputsLen = inputs.length;
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for (i = 0; i < inputsLen; i++) {
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input = inputs[i];
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obj = this._layers[input.layerId];
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if (input.checked && !obj.overlay) {
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return obj.name;
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}
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}
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},
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getActiveLayer: function () {
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var i, input, obj,
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inputs = this._form.getElementsByTagName('input'),
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inputsLen = inputs.length;
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for (i = 0; i < inputsLen; i++) {
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input = inputs[i];
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obj = this._layers[input.layerId];
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if (input.checked && !obj.overlay) {
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return obj.layer;
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}
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}
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}
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});
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