javascript - How to dynamically set shadow in Leaflet.js -


i dynamically set shadow of custom marker icon @ runtime, because want emphasize clicked icon. i'm using leaflet 1.0. things i've tried:

  • adding shadow @ runtime createshadow function

  • adding blank png shadow image custom icon , changing @ runtime either createshadow function or directly modifying shadow's image source

here's psuedocode:

function addmyshadow(marker) {   /* try leaflet's `createshadow` function */    // directly modify marker: uncaught typeerror: marker.createshadow not function   marker.createshadow('lib/images/shadow.png');     // createshadow available under options.icon,    // doesn't seem change   marker.options.icon.createshadow('lib/images/shadow.png');     /* try directly modifying shadow's image source */    // changes `currectsrc` property,   // doesn't icon on map   marker._shadow.currentsrc = 'lib/images/shadow.png';  }

  • i tried appending custom class -webkit-filter: drop-shadow, i'm using -webkit-filter color set of icons. want change selected icon, not entire class. apparently nesting -webkit-filter overwrites outside -webkit-filter instead of stacking filters. isn't viable option me.

  • currently i'm experimenting adding custom class uses css drop-shadow; seems can manually change class @ runtime, i'm hoping there's better built-in way add shadow. it's not pretty, because makes shadow square if image has transparency.

edit: want marker draggable (and have shadow follow marker dragged). solution 2 icons need bind both icons somehow.

i think should have 2 l.icon objects: 1 without shadow , 1 shadow.

to show shadow, switch l.icon

marker.on('click', function(e) {   if(selectedmarker) {     if(selectedmarker !== e.target) { // selected marker not 1       selectedmarker.seticon(greenicon);       e.target.seticon(greeniconwithshadow);       selectedmarker = e.target;     }     else {   // selected marker 1       selectedmarker.seticon(greenicon);       selectedmarker = false;     }   }   else {  // no marker selected     selectedmarker = e.target;     e.target.seticon(greeniconwithshadow);   } });

the shadow part of l.icon , should follow when dragged

see example http://plnkr.co/edit/pnxzjqmbcrtuo0jwpgyj?p=preview


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