Leaflet Tag Filter Button

Adds tag filter control for layers (marker, geojson features etc.) to LeafLet. Check out the demo

• Usage
  • Set data from external url/ajax
  • Selection complete callback
• API Docs
  • Options
  • Methods
• Change Log
• Authors

Usage

Required Leaflet.EasyButton

Simple usage :

If your markers contains tags option the plugin filters them by selected tags when popup is closed For example:

var map = L.map('map');

var fastMarker = L.marker([50.5, 30.5], { tags: ['fast'] }).addTo(map); 
var slowMarker = L.marker([50.5, 30.5], { tags: ['slow'] }).addTo(map);
var bothMarker = L.marker([50.5, 30.5], { tags: ['fast', 'slow'] }).addTo(map);

L.control.tagFilterButton({
	data: ['fast', 'slow']
}).addTo( map );

Set data from external url or ajax

note: this option not implemented yet!

var map = L.map('map');
L.tagFilterButton({
	ajaxData: function(callback) {
		$.get('https://leaflet-tag-filter-button.herokuapp.com/data', function(data)) {
			callback(data);
		}
	}
}).addTo( map );

Selection complete callback

var map = L.map('map');
L.tagFilterButton({
	data: function(callback) {
		$.get('https://leaflet-tag-filter-button.herokuapp.com/data', function(data)) {
			callback(data);
		}
	},
	onSelectionComplete: function(tags) {
		console.log('selected tags are', tags);
	}
}).addTo( map );

API Docs

Options

Option | Type | Default | Description -----------------------|---------------|----------------------|---------------------------- icon | String or HTML | fa-filter | The button icon. Default is fa-filter. You can use html syntax for the icon for example <img src="/filter.png"> onSelectionComplete | Function | null | The callback function for selected tags. It fires when popup is closed and sends selected tags to the callback function as a parameter. data | Array or Function | null | The data to be used for tags popup, it can be array or function. If it's a function, the function must return tags array. clearText | String | clear | The text of the clear button filterOnEveryClick | Boolean | false | if set as true the plugin do filtering operation on every click event on the checkboxes. openPopupOnHover | Boolean | false | if set as true, the popup that contains tags will be open at mouse over time.

Methods

Method | Returns | Description --------------------------------|---------------|---------------------------- update() | void | Updates markers with last selected tags. hasFiltered() | Boolean | returns true if any tag(s) selected otherwise false. registerCustomSource(<Object> source) | throws an exception if sourcehas no name orsource.hide function is not implemented | Registers source object for filtering markers by tags. If you want to to use this function you must implement hide function
enablePruneCluster(<PruneCluster> pruneClusterInstance) | void | Searches markers for filtering on given pruneClusterInstance object resetCaches(<Boolean> update?) | void | Resets internal caches. if the update parameter sent as true, the update() function will be call after cleaning the cache. addToReleated(<TagFilterButton> tagFilterButton) | Boolean | If it required to use multiple TagFilterButtons in the same map you must link two instance of TagFilterButtons by using this method. If linking is successful returns true otherwise returns false.

Change Log

Please check the Releases page

Authors

Thanks to Contributors