leaflet-draw.html

<link rel="import" href="leaflet-core.html">
<link rel="import" href="leaflet-popup.html">
<link rel="import" href="leaflet-point.html">

<!--
element which defines am abstract leaflet path (<a href="http://leafletjs.com/reference.html#path">Leaflet Reference</a>).

Do not use this element directly.

@element leaflet-path
@blurb element which defines am abstract leaflet path. Do not use directly. Most options are supported as attributes. 
@demo https://leaflet-extras.github.io/leaflet-map/demo.html
@homepage https://leaflet-extras.github.io/leaflet-map/
-->
<script>
	"use strict";

	var leafletMap = leafletMap || {};

	window.leafletMap.LeafletPath = {
		/**
		 * Fired when the user clicks (or taps) the object.
		 * 
		 * @event click
		 * @type MouseEvent
		 * @param {LatLng} latlng The geographical point where the mouse event occured.
		 * @param {Point} layerPoint Pixel coordinates of the point where the mouse event occured relative to the map layer.
		 * @param {Point} containerPoint Pixel coordinates of the point where the mouse event occured relative to the map сontainer.
		 * @param {DOMMouseEvent} originalEvent The original DOM mouse event fired by the browser.
		 */

		/**
		 * Fired when the user double-clicks (or double-taps) the object.
		 * 
		 * @event dblclick
		 * @type MouseEvent
		 * @param {LatLng} latlng The geographical point where the mouse event occured.
		 * @param {Point} layerPoint Pixel coordinates of the point where the mouse event occured relative to the map layer.
		 * @param {Point} containerPoint Pixel coordinates of the point where the mouse event occured relative to the map сontainer.
		 * @param {DOMMouseEvent} originalEvent The original DOM mouse event fired by the browser.
		 */

		/**
		 * Fired when the user pushes the mouse button on the object.
		 * 
		 * @event mousedown
		 * @type MouseEvent
		 * @param {LatLng} latlng The geographical point where the mouse event occured.
		 * @param {Point} layerPoint Pixel coordinates of the point where the mouse event occured relative to the map layer.
		 * @param {Point} containerPoint Pixel coordinates of the point where the mouse event occured relative to the map сontainer.
		 * @param {DOMMouseEvent} originalEvent The original DOM mouse event fired by the browser.
		 */

		/**
		 * Fired when the mouse enters the object.
		 * 
		 * @event mouseover
		 * @type MouseEvent
		 * @param {LatLng} latlng The geographical point where the mouse event occured.
		 * @param {Point} layerPoint Pixel coordinates of the point where the mouse event occured relative to the map layer.
		 * @param {Point} containerPoint Pixel coordinates of the point where the mouse event occured relative to the map сontainer.
		 * @param {DOMMouseEvent} originalEvent The original DOM mouse event fired by the browser.
		 */
		
		/**
		 * Fired when the mouse leaves the object.
		 * 
		 * @event mouseout
		 * @type MouseEvent
		 * @param {LatLng} latlng The geographical point where the mouse event occured.
		 * @param {Point} layerPoint Pixel coordinates of the point where the mouse event occured relative to the map layer.
		 * @param {Point} containerPoint Pixel coordinates of the point where the mouse event occured relative to the map сontainer.
		 * @param {DOMMouseEvent} originalEvent The original DOM mouse event fired by the browser.
		 */
		
		/**
		 * Fired when the user right-clicks on the object.
		 * 
		 * @event contextmenu
		 * @type MouseEvent
		 */

		/**
		 * Fired when the object is added to the map.
		 * 
		 * @event add
		 * @type 
		 */

		/**
		 * Fired when the object is removed from the map.
		 * 
		 * @event remove
		 */

		/**
		 * Fired when a popup bound to the object is open.
		 * 
		 * @event popupopen
		 * @type PopupEvent
		 * @param {Popup} popup The popup that was opened or closed.
		 */

		/**
		 * Fired when a popup bound to the object is closed.
		 * 
		 * @event popupclose
		 * @type PopupEvent
		 * @param {Popup} popup The popup that was opened or closed.
		 */

		properties: {
			/**
			 * The attribute `stroke` sets whether to draw stroke along the path. Set it to false to disable borders on polygons or circles.
			 *
			 * @attribute stroke
			 * @type boolean
			 */
			noStroke: {
				type: Boolean,
				value: false
			},

			/**
			 * The attribute `color` sets the stroke color.
			 *
			 * @attribute color
			 * @type string
			 */
			color: {
				type: String,
				value: "#03f"
			},

			/**
			 * The attribute `weight` sets the stroke width in pixels.
			 *
			 * @attribute weight
			 * @type number
			 */
			weight: {
				type: Number,
				value: 5
			},

			/**
			 * The attribute `opacity` sets the stroke opacity.
			 *
			 * @attribute opacity
			 * @type number
			 */
			opacity: {
				type: Number,
				value: 0.5
			},

			/**
			 * The attribute `fill` sets the whether to fill the path with color. Set it to false to disable filling on polygons or circles.
			 *
			 * @attribute fill
			 * @type boolean
			 */
			fill: {
				type: Boolean,
				value: null
			},

			/**
			 * The attribute `fill-color` sets the fill color.
			 *
			 * @attribute fill-color
			 * @type string
			 */
			fillColor: {
				type: String,
				value: null
			},

			/**
			 * The attribute `fill-opacity` sets the fill opacity.
			 *
			 * @attribute fill-opacity
			 * @type number
			 */
			fillOpacity: {
				type: Number,
				value: 0.2
			},

			/**
			 * The attribute `dash-array` sets a string that defines the stroke dash pattern. Doesn't work on canvas-powered layers (e.g. Android 2).
			 *
			 * @attribute dash-array
			 * @type string
			 */
			dashArray: {
				type: String,
				value: null
			},

			/**
			 * The attribute `line-cap` defines the shape to be used at the end of the stroke.
			 *
			 * @attribute line-cap
			 * @type string
			 */
			lineCap: {
				type: String,
				value: null
			}, 

			/**
			 * The attribute `line-join` sets the string that defines shape to be used at the corners of the stroke.
			 *
			 * @attribute line-join
			 * @type string
			 */
			lineJoin: {
				type: String,
				value: null
			},

			/**
			 * The attribute `clickable` sets whether the vector will emit mouse events or will act as a part of the underlying map.
			 *
			 * @attribute clickable
			 * @type boolean
			 */
			noClickable: {
				type: Boolean,
				value: false
			},

			/**
			 * The attribute `pointer-events` sets the pointer-events attribute on the path if SVG backend is used.
			 *
			 * @attribute pointer-events
			 * @type string
			 */
			pointerEvents: {
				type: String,
				value: null
			},

			/**
			 * The attribute `class-name` sets the custom class name set on an element.
			 *
			 * @attribute class-name
			 * @type string
			 */
			className: {
				type: String,
				value: ""
			}
		},

		getPathOptions: function() {
			return {
				stroke: !this.noStroke,
				color: this.color,
				weight: this.weight,
				opacity: this.opacity,
				fill: this.fill,
				fillColor: this.fillColor,
				fillOpacity: this.fillOpacity,
				dashArray: this.dashArray,
				lineCap: this.lineCap,
				lineJoin: this.lineJoin,
				clickable: !this.noClickable,
				pointerEvents: this.pointerEvents,
				className: this.className,
			};
		}
	};

	window.leafletMap.LeafletPointContent = {
		attached: function() {
			if (MutationObserver && !this.observer_) {
				this.observer_ = new MutationObserver(this.updatePointContent.bind(this));
				this.observer_.observe(this, {childList: true, characterData: true, attributes: true, subtree: true});
			}
		},

		updatePointContent: function() {
			if (!this.feature) {
				return;
			}
			var temp = [];
			var nodes = Array.prototype.slice.call(Polymer.dom(this.$.points).getDistributedNodes());
			for (var i = 0; i < nodes.length; i++) {
				temp.push(nodes[i].getPosition());
			}
			this.feature.setLatLngs(temp);
		},
		
		detached: function() {
			if (this.observer_) {
				this.observer_.disconnect();
			}
		}
	}
</script>





<!--
The `leaflet-circle` element represents a circle on the map and is used as
a child element of the `leaflet-map` element.


##### Example: Add circles
    <leaflet-map longitude="77.2" latitude="28.4" zoom="12">
        <leaflet-circle longitude="77.2" latitude="28.4" radius="300">
            Circle
        </leaflet-circle>
    </leaflet-map>

@element leaflet-circle
@blurb Element for putting a circle on the map
@demo https://leaflet-extras.github.io/leaflet-map/demo.html
@homepage https://leaflet-extras.github.io/leaflet-map/
-->
<dom-module id="leaflet-circle">
	<style>
		:host{ display: none; }
	</style>
	<template>
	</template>
</dom-module>
<script>
	"use strict";
	
	Polymer({
		is: 'leaflet-circle',

		/**
		 * A Leaflet circle object
		 *
		 * @property feature
		 * @type L.circle
		 * @default null
		 */
		feature: null,
		behaviors: [leafletMap.LeafletPath, leafletMap.LeafletPopupContent],

		properties: {
			/**
			 * The circle's longitude coordinate
			 *
			 * @attribute longitude
			 * @type number
			 * @default null
			 */
			longitude: {
				type: Number,
				observer: '_updatePosition'
			},
	
			/**
			 * The circle's latitude coordinate
			 *
			 * @attribute latitude
			 * @type number
			 * @default null
			 */
			latitude: {
				type: Number,
				observer: '_updatePosition'
			},
	
			/**
			 * The circle's radius is metres
			 *
			 * @attribute radius
			 * @type number
			 * @default 100
			 */
			radius: {
				type: Number,
				value: 100,
				observer: '_updateRadius'
			},
			
			container: {
				type: Object,
				observer: '_containerChanged'
			}
		},
		
		
		_containerChanged: function() {
			if (this.latitude && this.longitude && this.container) {
		    	this.feature = L.circle([this.latitude, this.longitude], this.radius, this.getPathOptions());
		    	this.feature.addTo(this.container);
		    	this.updatePopupContent();

			    // forward events
				this.feature.on('click dblclick mousedown mouseover mouseout contextmenu add remove popupopen popupclose', function(e) {
			    	this.fire(e.type, e);
				}, this);
			}
		},
	
		_updatePosition: function () {
			if (this.feature && this.latitude != null && this.longitude != null) {
				this.feature.setLatLng(L.latLng( this.latitude, this.longitude) );
			}
		},
		
		_updateRadius: function () {
			if (this.feature && this.radius != null) {
				this.feature.setRadius(this.radius);
			}
		},
		
		detached: function() {
			if (this.container && this.feature) {
				this.container.removeLayer(this.feature);
			}
		}
	});
</script>




<!--
The `leaflet-point` element represents one point in an polyline on the map and is used as
a child element of the `leaflet-polyline` element.

##### Example: Add polylines
    <leaflet-map longitude="77.2" latitude="28.4" zoom="12">
        <leaflet-polyline>
            <leaflet-point longitude="77.22" latitude="28.44"></leaflet-point>
            <leaflet-point longitude="77.44" latitude="28.66"></leaflet-point>
        </leaflet-polyline>
    </leaflet-map>

@element leaflet-point
@blurb Element for adding a point to a polyline
@demo https://leaflet-extras.github.io/leaflet-map/demo.html
@homepage https://leaflet-extras.github.io/leaflet-map/
-->
<dom-module id="leaflet-point">
	<script>
		Polymer({
			is: "leaflet-point",
			properties: {
				latitude: {
					type: Number,
					value: 0,
					reflectToAttribute:true
				},
				longitude: {
					type: Number,
					value: 0,
					reflectToAttribute:true
				}
			}
		});
	</script>
</dom-module>



<!--
The `leaflet-polyline` element represents a polyline on the map and is used as
a child element of the `leaflet-map` element. To compose the line one needs to
add `leaflet-point` elements inside it.


##### Example: Add polylines
    <leaflet-map longitude="77.2" latitude="28.4" zoom="12">
        <leaflet-polyline>
            <leaflet-point longitude="77.22" latitude="28.44"></leaflet-point>
            <leaflet-point longitude="77.44" latitude="28.66"></leaflet-point>
        </leaflet-polyline>
    </leaflet-map>

@element leaflet-polyline
@blurb Element for putting a polyline on the map
@demo https://leaflet-extras.github.io/leaflet-map/demo.html
@homepage https://leaflet-extras.github.io/leaflet-map/
-->

<dom-module id="leaflet-polyline">
	<style>
		:host{ display: none; }
	</style>
	<template>
		<content id="points" select="leaflet-point"></content>
	</template>
</dom-module>

<script>
	"use strict";
 
	Polymer({
		is: 'leaflet-polyline',
		behaviors: [leafletMap.LeafletPath, leafletMap.LeafletPointContent, leafletMap.LeafletPopupContent],

		/**
		 * A Leaflet [Polyline](http://leafletjs.com/reference.html#polyline) object
		 *
		 * @property feature
		 * @type L.polyline
		 * @default null
		 */
		feature: null,

		properties: {
			container: {
				type: Object,
				observer: '_containerChanged'
			}
		},

		_containerChanged: function() {
			if (this.container) {
				this.feature = L.polyline([], this.getPathOptions());
				this.feature.addTo( this.container );
				this.updatePointContent();
				this.updatePopupContent();

				// forward events
				this.feature.on('click dblclick mousedown mouseover mouseout contextmenu add remove popupopen popupclose', function(e) {
					this.fire(e.type, e);
				}, this);
			}
		},

		detached: function() {
			if (this.container && this.feature) {
				this.container.removeLayer(this.feature);
			}
		}
	});
</script>


<!--
The `leaflet-polygon` element represents a polygon on the map and is used as
a child element of the `leaflet-map` element. To compose the line one needs to
add `leaflet-point` elements inside it.


##### Example: Add polygona
    <leaflet-map longitude="77.2" latitude="28.4" zoom="12">
        <leaflet-polygon>
            <leaflet-point longitude="77.1000" latitude="13.3400"></leaflet-point>
            <leaflet-point longitude="77.5000" latitude="13.5500"></leaflet-point>
            <leaflet-point longitude="77.7200" latitude="12.7200"></leaflet-point>
        </leaflet-polygon>
    </leaflet-map>

@element leaflet-polygon
@blurb Element for putting a polygon on the map
@demo https://leaflet-extras.github.io/leaflet-map/demo.html
@homepage https://leaflet-extras.github.io/leaflet-map/
-->

<dom-module id="leaflet-polygon">
	<style>
		:host {display: none;}
	</style>
	<template>
		<content id="points" select="leaflet-point"></content>
	</template>
</dom-module>

<script>
"use strict";
Polymer({
	is: 'leaflet-polygon',
	behaviors: [leafletMap.LeafletPath, leafletMap.LeafletPointContent, leafletMap.LeafletPopupContent],

	properties: {
		container: {
			type: Object,
			observer: '_containerChanged'
		}
	},
	
	/**
	 * A Leaflet [Polygon](http://leafletjs.com/reference.html#polygon) object
	 *
	 * @property feature
	 * @type L.polygon
	 * @default null
	 */
	feature: null,

	_containerChanged: function() {
		if (this.container) {
			var opt = this.getPathOptions();
			if (typeof opt.fill === "undefined" || opt.fill === null) {
				opt.fill = true;
			}
			this.feature = L.polygon([], opt);
			this.feature.addTo(this.container);
			this.updatePointContent();
			this.updatePopupContent();

			// forward events
			this.feature.on('click dblclick mousedown mouseover mouseout contextmenu add remove popupopen popupclose', function(e) {
				this.fire(e.type, e);
			}, this);
		}
	},

	detached: function() {
		if (this.container && this.feature) {
			this.container.removeLayer(this.feature);
		}
	}
});
</script>