72 lines
1.9 KiB
JavaScript
72 lines
1.9 KiB
JavaScript
L.OSM.Zoom = L.Control.extend({
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options: {
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position: "topright"
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},
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onAdd: function (map) {
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const zoomName = "zoom",
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container = L.DomUtil.create("div", zoomName);
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this._map = map;
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this._zoomInButton = this._createButton(
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"", I18n.t("javascripts.map.zoom.in"), zoomName + "in", container, this._zoomIn, this);
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this._zoomOutButton = this._createButton(
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"", I18n.t("javascripts.map.zoom.out"), zoomName + "out", container, this._zoomOut, this);
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map.on("zoomend zoomlevelschange", this._updateDisabled, this);
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return container;
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},
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onRemove: function (map) {
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map.off("zoomend zoomlevelschange", this._updateDisabled, this);
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},
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_zoomIn: function (e) {
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this._map.zoomIn(e.shiftKey ? 3 : 1);
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},
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_zoomOut: function (e) {
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this._map.zoomOut(e.shiftKey ? 3 : 1);
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},
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_createButton: function (html, title, className, container, fn, context) {
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const link = L.DomUtil.create("a", "control-button " + className, container);
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link.innerHTML = html;
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link.href = "#";
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link.title = title;
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L.DomUtil.create("span", "icon " + className, link);
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const stop = L.DomEvent.stopPropagation;
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L.DomEvent
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.on(link, "click", stop)
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.on(link, "mousedown", stop)
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.on(link, "dblclick", stop)
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.on(link, "click", L.DomEvent.preventDefault)
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.on(link, "click", fn, context);
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return link;
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},
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_updateDisabled: function () {
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const map = this._map,
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className = "disabled";
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L.DomUtil.removeClass(this._zoomInButton, className);
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L.DomUtil.removeClass(this._zoomOutButton, className);
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if (map._zoom === map.getMinZoom()) {
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L.DomUtil.addClass(this._zoomOutButton, className);
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}
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if (map._zoom === map.getMaxZoom()) {
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L.DomUtil.addClass(this._zoomInButton, className);
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}
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}
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});
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L.OSM.zoom = function (options) {
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return new L.OSM.Zoom(options);
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};
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