mirror of
https://github.com/DanielnetoDotCom/YouPHPTube
synced 2025-10-04 10:19:24 +02:00
79 lines
2.1 KiB
JavaScript
79 lines
2.1 KiB
JavaScript
THREE.SelectionHelper = ( function () {
|
|
|
|
function SelectionHelper( selectionBox, renderer, cssClassName ) {
|
|
|
|
this.element = document.createElement( 'div' );
|
|
this.element.classList.add( cssClassName );
|
|
this.element.style.pointerEvents = 'none';
|
|
|
|
this.renderer = renderer;
|
|
|
|
this.startPoint = new THREE.Vector2();
|
|
this.pointTopLeft = new THREE.Vector2();
|
|
this.pointBottomRight = new THREE.Vector2();
|
|
|
|
this.isDown = false;
|
|
|
|
this.renderer.domElement.addEventListener( 'pointerdown', function ( event ) {
|
|
|
|
this.isDown = true;
|
|
this.onSelectStart( event );
|
|
|
|
}.bind( this ) );
|
|
|
|
this.renderer.domElement.addEventListener( 'pointermove', function ( event ) {
|
|
|
|
if ( this.isDown ) {
|
|
|
|
this.onSelectMove( event );
|
|
|
|
}
|
|
|
|
}.bind( this ) );
|
|
|
|
this.renderer.domElement.addEventListener( 'pointerup', function ( event ) {
|
|
|
|
this.isDown = false;
|
|
this.onSelectOver( event );
|
|
|
|
}.bind( this ) );
|
|
|
|
}
|
|
|
|
SelectionHelper.prototype.onSelectStart = function ( event ) {
|
|
|
|
this.renderer.domElement.parentElement.appendChild( this.element );
|
|
|
|
this.element.style.left = event.clientX + 'px';
|
|
this.element.style.top = event.clientY + 'px';
|
|
this.element.style.width = '0px';
|
|
this.element.style.height = '0px';
|
|
|
|
this.startPoint.x = event.clientX;
|
|
this.startPoint.y = event.clientY;
|
|
|
|
};
|
|
|
|
SelectionHelper.prototype.onSelectMove = function ( event ) {
|
|
|
|
this.pointBottomRight.x = Math.max( this.startPoint.x, event.clientX );
|
|
this.pointBottomRight.y = Math.max( this.startPoint.y, event.clientY );
|
|
this.pointTopLeft.x = Math.min( this.startPoint.x, event.clientX );
|
|
this.pointTopLeft.y = Math.min( this.startPoint.y, event.clientY );
|
|
|
|
this.element.style.left = this.pointTopLeft.x + 'px';
|
|
this.element.style.top = this.pointTopLeft.y + 'px';
|
|
this.element.style.width = ( this.pointBottomRight.x - this.pointTopLeft.x ) + 'px';
|
|
this.element.style.height = ( this.pointBottomRight.y - this.pointTopLeft.y ) + 'px';
|
|
|
|
};
|
|
|
|
SelectionHelper.prototype.onSelectOver = function () {
|
|
|
|
this.element.parentElement.removeChild( this.element );
|
|
|
|
};
|
|
|
|
return SelectionHelper;
|
|
|
|
} )();
|