mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-11-04 00:56:17 +00:00
136 lines
4.0 KiB
JavaScript
136 lines
4.0 KiB
JavaScript
/*\
|
|
title: $:/plugins/tiddlywiki/geospatial/geomap.js
|
|
type: application/javascript
|
|
module-type: widget
|
|
|
|
Leaflet map widget
|
|
|
|
\*/
|
|
(function(){
|
|
|
|
/*jslint node: true, browser: true */
|
|
/*global $tw: false */
|
|
"use strict";
|
|
|
|
var Widget = require("$:/core/modules/widgets/widget.js").widget;
|
|
|
|
var GeomapWidget = function(parseTreeNode,options) {
|
|
this.initialise(parseTreeNode,options);
|
|
};
|
|
|
|
/*
|
|
Inherit from the base widget class
|
|
*/
|
|
GeomapWidget.prototype = new Widget();
|
|
|
|
/*
|
|
Render this widget into the DOM
|
|
*/
|
|
GeomapWidget.prototype.render = function(parent,nextSibling) {
|
|
// Housekeeping
|
|
this.parentDomNode = parent;
|
|
this.computeAttributes();
|
|
this.execute();
|
|
// Render a wrapper for the map
|
|
var domNode = this.document.createElement("div");
|
|
domNode.style.width = "100%";
|
|
domNode.style.height = "600px";
|
|
// Insert it into the DOM
|
|
parent.insertBefore(domNode,nextSibling);
|
|
this.domNodes.push(domNode);
|
|
// Render the map
|
|
if($tw.browser) {
|
|
this.renderMap(domNode);
|
|
}
|
|
};
|
|
|
|
GeomapWidget.prototype.renderMap = function(domNode) {
|
|
var self = this;
|
|
// Get Leaflet
|
|
var L = require("$:/plugins/tiddlywiki/geospatial/leaflet.js");
|
|
// Create and position the map
|
|
const map = L.map(domNode).setView([51.505, -0.09], 13);
|
|
map.fitWorld();
|
|
// Setup the tile layer
|
|
const tiles = L.tileLayer('https://tile.openstreetmap.org/{z}/{x}/{y}.png', {
|
|
maxZoom: 19,
|
|
attribution: '© <a href="http://www.openstreetmap.org/copyright">OpenStreetMap</a>'
|
|
}).addTo(map);
|
|
// Disable Leaflet attribution
|
|
map.attributionControl.setPrefix("");
|
|
// Create default icon
|
|
const iconProportions = 365/560,
|
|
iconHeight = 50;
|
|
const myIcon = new L.Icon({
|
|
iconUrl: $tw.utils.makeDataUri(this.wiki.getTiddlerText("$:/plugins/tiddlywiki/geospatial/images/markers/pin"),"image/svg+xml"),
|
|
iconSize: [iconHeight * iconProportions, iconHeight], // Size of the icon
|
|
iconAnchor: [(iconHeight * iconProportions) / 2, iconHeight], // Position of the anchor within the icon
|
|
popupAnchor: [0, -iconHeight] // Position of the popup anchor relative to the icon anchor
|
|
});
|
|
// Add scale
|
|
L.control.scale().addTo(map);
|
|
// Add overlays
|
|
if(this.geomapLayerFilter) {
|
|
$tw.utils.each(this.wiki.filterTiddlers(this.geomapLayerFilter,this),function(title) {
|
|
var tiddler = self.wiki.getTiddler(title);
|
|
if(tiddler) {
|
|
var layer = L.geoJSON($tw.utils.parseJSONSafe(tiddler.fields.text || "[]",[]),{
|
|
style: function(geoJsonFeature) {
|
|
return {
|
|
color: tiddler.getFieldString("color") || "yellow"
|
|
}
|
|
}
|
|
}).addTo(map);
|
|
}
|
|
});
|
|
}
|
|
// Add markers
|
|
if(this.geomapMarkerFilter) {
|
|
$tw.utils.each(this.wiki.filterTiddlers(this.geomapMarkerFilter,this),function(title) {
|
|
var tiddler = self.wiki.getTiddler(title);
|
|
if(tiddler) {
|
|
var lat = $tw.utils.parseNumber(tiddler.fields.lat || "0"),
|
|
long = $tw.utils.parseNumber(tiddler.fields.long || "0"),
|
|
alt = $tw.utils.parseNumber(tiddler.fields.alt || "0"),
|
|
caption = tiddler.fields.caption || title,
|
|
icon = myIcon;
|
|
if(tiddler.fields["icon-url"]) {
|
|
icon = new L.Icon({
|
|
iconUrl: tiddler.fields["icon-url"],
|
|
iconSize: [32, 32], // Size of the icon
|
|
iconAnchor: [16, 32], // Position of the anchor within the icon
|
|
popupAnchor: [16, -32] // Position of the popup anchor relative to the icon anchor
|
|
});
|
|
}
|
|
var m = L.marker([lat,long,alt],{icon: icon,draggable: false}).bindPopup(caption).addTo(map);
|
|
}
|
|
});
|
|
}
|
|
};
|
|
|
|
/*
|
|
Compute the internal state of the widget
|
|
*/
|
|
GeomapWidget.prototype.execute = function() {
|
|
this.geomapLayerFilter = this.getAttribute("layers");
|
|
this.geomapMarkerFilter = this.getAttribute("markers");
|
|
};
|
|
|
|
/*
|
|
Selectively refreshes the widget if needed. Returns true if the widget or any of its children needed re-rendering
|
|
*/
|
|
GeomapWidget.prototype.refresh = function(changedTiddlers) {
|
|
var changedAttributes = this.computeAttributes();
|
|
if($tw.utils.count(changedAttributes) > 0) {
|
|
this.refreshSelf();
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
};
|
|
|
|
exports.geomap = GeomapWidget;
|
|
|
|
})();
|
|
|