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import * as is from '../is';
const elesfn = {};
function defineSwitchFunction( params ){
return function(){
let args = arguments;
let changedEles = [];
// e.g. cy.nodes().select( data, handler )
if( args.length === 2 ){
let data = args[0];
let handler = args[1];
this.on( params.event, data, handler );
}
// e.g. cy.nodes().select( handler )
else if( args.length === 1 && is.fn(args[0]) ){
let handler = args[0];
this.on( params.event, handler );
}
// e.g. cy.nodes().select()
// e.g. (private) cy.nodes().select(['tapselect'])
else if( args.length === 0 || (args.length === 1 && is.array(args[0])) ){
let addlEvents = args.length === 1 ? args[0] : null;
for( let i = 0; i < this.length; i++ ){
let ele = this[ i ];
let able = !params.ableField || ele._private[ params.ableField ];
let changed = ele._private[ params.field ] != params.value;
if( params.overrideAble ){
let overrideAble = params.overrideAble( ele );
if( overrideAble !== undefined ){
able = overrideAble;
if( !overrideAble ){ return this; } // to save cycles assume not able for all on override
}
}
if( able ){
ele._private[ params.field ] = params.value;
if( changed ){
changedEles.push( ele );
}
}
}
let changedColl = this.spawn( changedEles );
changedColl.updateStyle(); // change of state => possible change of style
changedColl.emit( params.event );
if( addlEvents ){
changedColl.emit( addlEvents );
}
}
return this;
};
}
function defineSwitchSet( params ){
elesfn[ params.field ] = function(){
let ele = this[0];
if( ele ){
if( params.overrideField ){
let val = params.overrideField( ele );
if( val !== undefined ){
return val;
}
}
return ele._private[ params.field ];
}
};
elesfn[ params.on ] = defineSwitchFunction( {
event: params.on,
field: params.field,
ableField: params.ableField,
overrideAble: params.overrideAble,
value: true
} );
elesfn[ params.off ] = defineSwitchFunction( {
event: params.off,
field: params.field,
ableField: params.ableField,
overrideAble: params.overrideAble,
value: false
} );
}
defineSwitchSet( {
field: 'locked',
overrideField: function( ele ){
return ele.cy().autolock() ? true : undefined;
},
on: 'lock',
off: 'unlock'
} );
defineSwitchSet( {
field: 'grabbable',
overrideField: function( ele ){
return ele.cy().autoungrabify() || ele.pannable() ? false : undefined;
},
on: 'grabify',
off: 'ungrabify'
} );
defineSwitchSet( {
field: 'selected',
ableField: 'selectable',
overrideAble: function( ele ){
return ele.cy().autounselectify() ? false : undefined;
},
on: 'select',
off: 'unselect'
} );
defineSwitchSet( {
field: 'selectable',
overrideField: function( ele ){
return ele.cy().autounselectify() ? false : undefined;
},
on: 'selectify',
off: 'unselectify'
} );
elesfn.deselect = elesfn.unselect;
elesfn.grabbed = function(){
let ele = this[0];
if( ele ){
return ele._private.grabbed;
}
};
defineSwitchSet( {
field: 'active',
on: 'activate',
off: 'unactivate'
} );
defineSwitchSet( {
field: 'pannable',
on: 'panify',
off: 'unpanify'
} );
elesfn.inactive = function(){
let ele = this[0];
if( ele ){
return !ele._private.active;
}
};
export default elesfn;
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