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import Set from '../set';
import * as is from '../is';
let elesfn = ({
classes: function( classes ){
let self = this;
if( classes === undefined ){
let ret = [];
self[0]._private.classes.forEach(cls => ret.push(cls));
return ret;
} else if( !is.array( classes ) ){
// extract classes from string
classes = ( classes || '' ).match( /\S+/g ) || [];
}
let changed = [];
let classesSet = new Set( classes );
// check and update each ele
for( let j = 0; j < self.length; j++ ){
let ele = self[ j ];
let _p = ele._private;
let eleClasses = _p.classes;
let changedEle = false;
// check if ele has all of the passed classes
for( let i = 0; i < classes.length; i++ ){
let cls = classes[i];
let eleHasClass = eleClasses.has(cls);
if( !eleHasClass ){
changedEle = true;
break;
}
}
// check if ele has classes outside of those passed
if( !changedEle ){
changedEle = eleClasses.size !== classes.length;
}
if( changedEle ){
_p.classes = classesSet;
changed.push( ele );
}
}
// trigger update style on those eles that had class changes
if( changed.length > 0 ){
this.spawn( changed )
.updateStyle()
.emit( 'class' )
;
}
return self;
},
addClass: function( classes ){
return this.toggleClass( classes, true );
},
hasClass: function( className ){
let ele = this[0];
return ( ele != null && ele._private.classes.has(className) );
},
toggleClass: function( classes, toggle ){
if( !is.array( classes ) ){
// extract classes from string
classes = classes.match( /\S+/g ) || [];
}
let self = this;
let toggleUndefd = toggle === undefined;
let changed = []; // eles who had classes changed
for( let i = 0, il = self.length; i < il; i++ ){
let ele = self[ i ];
let eleClasses = ele._private.classes;
let changedEle = false;
for( let j = 0; j < classes.length; j++ ){
let cls = classes[ j ];
let hasClass = eleClasses.has(cls);
let changedNow = false;
if( toggle || (toggleUndefd && !hasClass) ){
eleClasses.add(cls);
changedNow = true;
} else if( !toggle || (toggleUndefd && hasClass) ){
eleClasses.delete(cls);
changedNow = true;
}
if( !changedEle && changedNow ){
changed.push( ele );
changedEle = true;
}
} // for j classes
} // for i eles
// trigger update style on those eles that had class changes
if( changed.length > 0 ){
this.spawn( changed )
.updateStyle()
.emit( 'class' )
;
}
return self;
},
removeClass: function( classes ){
return this.toggleClass( classes, false );
},
flashClass: function( classes, duration ){
let self = this;
if( duration == null ){
duration = 250;
} else if( duration === 0 ){
return self; // nothing to do really
}
self.addClass( classes );
setTimeout( function(){
self.removeClass( classes );
}, duration );
return self;
}
});
elesfn.className = elesfn.classNames = elesfn.classes;
export default elesfn;
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