Make street label collision flag a function

htdocs/leafletjs/Leaflet.streetlabels.js

@@ -94,7 +94,7 @@ L.StreetLabels = L.LabelTextCollision
                     L.point(p.x + offsetX, p.y + offsetY), L.point(
                         textWidth, textHeight));
 
-                if (this.options.collisionFlg) {
+                if (this._getCollisionFlag(layer)) {
                     for (var index in this._textList) {
                         var pointBounds = this._textList[index];
                         if (pointBounds.intersects(bounds)) {
@@ -105,7 +105,6 @@ L.StreetLabels = L.LabelTextCollision
 
                 this._textList.push(bounds);
 
-
                 ctx.fillStyle = this.options.fontStyle.fillStyle;
                 ctx.strokeStyle = this.options.fontStyle.strokeStyle;
 
@@ -143,6 +142,10 @@ L.StreetLabels = L.LabelTextCollision
             }
         },
 
+	_getCollisionFlag: function (layer) {
+		return this.options.collisionFlg;
+	},
+
         /***
          * Returns the bearing in degrees clockwise from north (0 degrees)
             from the first L.LatLng to the second, at the first LatLng

htdocs/mapscript.js

@@ -36,6 +36,13 @@ var streetLabelsRenderer = new L.StreetLabels({
 	},
 });
 
+streetLabelsRenderer._getCollisionFlag = function (layer) {
+	if (!(layer instanceof L.Polygon)) // Always check collision for streets
+		return true;
+	zoom = mymap.getZoom();
+	return (zoom < 5);
+}
+
 streetLabelsRenderer._getDynamicFontSize = function (layer) {
 	zoom = mymap.getZoom();