First commit

framework/client/animation/animationManager.js

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+/*
+
+	Copyright (c) 2020, 2023, The Unified Company.
+
+	This code is part of Unify.
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE,
+	as published by the Free Software Foundation.
+	See the GNU AFFERO GENERAL PUBLIC LICENSE, for more details.
+
+	https://unifyjs.org
+
+*/
+
+import animation		from "./animation.js";
+
+
+export default class animationManager{
+
+	id 					= 0;
+
+	start				= 0;
+
+
+	animations			= new Array();
+
+	element				= document.querySelector(".test");
+
+	promises			= new Array();
+
+	eventListener;
+
+
+	constructor() {
+
+		this.id	= document.animationID++;
+
+	}
+
+	createAnimation( name ) {
+
+		var newAnimation				= new animation();
+
+		newAnimation.animationManager	= this
+
+		newAnimation.id					= document.keyframeID++;
+
+		newAnimation.name 				= name + newAnimation.id;
+
+		newAnimation.element 			= this.element;
+
+		newAnimation.created			= false;
+
+
+		this.animations[ newAnimation.name ] 	= newAnimation;
+
+
+		this.createListeners( newAnimation );
+
+		return newAnimation;
+
+	}
+
+
+	getAnimationClassName() {
+
+		return "keyFrameAnimation" + this.id;
+
+	}
+
+	createListeners( animation ) {
+
+		if( !animation.direction ) {
+
+			animation.__direction = "normal"
+
+		} else {
+
+			animation.__direction = animation.direction;
+
+		}
+
+		var that = this;
+
+		animation.__defineSetter__( "direction", function( value ){ 
+
+			animation.__direction = value;
+
+			var animationManager = animation.animationManager;
+
+			var source = that.composeCss();
+
+			animation.writeStyleToDOM( source );
+	
+		});
+		 
+		animation.__defineGetter__( "direction", function(){ 
+
+			return animation.__direction;
+			
+		});
+
+	}
+
+	composeKeyFrameCss( source ) {
+
+		var animations		= this.animations;
+
+		for ( var i in animations ) {
+
+			var currentAnimation = animations[i];
+
+			//if( !currentAnimation.active ) {
+
+				source	+= "@keyframes " + currentAnimation.name + "{ \n";
+
+				var keyFrames = currentAnimation.keyFrames;
+
+				for (var i = 0; i < keyFrames.length; i++) {
+
+					var currentKeyFrame = keyFrames[i];
+
+
+					source	+= "\t" + currentKeyFrame.percent + "% {";
+
+					source	+= currentKeyFrame.composeCss();
+
+					source	+= "}\n";
+
+				}
+
+				source += "} \n";
+
+				currentAnimation.created = true;
+				
+			//}
+
+		}
+
+		return source;
+
+	}
+
+	composeAnimationCss( source ) {
+
+		var names				= new Array();
+
+		var durations			= new Array();
+
+		var interationCounts	= new Array();
+
+		var fillModes			= new Array();
+
+		var directions			= new Array();
+
+
+		var animations			= this.animations;
+
+
+		for ( var i in animations ) {
+
+			var currentAnimation = animations[i];
+
+			if( currentAnimation.active ) {
+
+				if( currentAnimation.duration ) { 
+
+					names.push(  currentAnimation.name );
+
+					durations.push(  currentAnimation.duration );
+
+					directions.push(  currentAnimation.direction );
+
+
+					if( !currentAnimation.iterationCount ) {
+
+						currentAnimation.iterationCount = 1;
+
+					}
+
+					interationCounts.push( currentAnimation.iterationCount );
+
+					if( !currentAnimation.fillMode ) {
+
+						currentAnimation.fillMode		= "none";
+
+					}
+
+					fillModes.push( currentAnimation.fillMode );
+
+				}
+
+			}
+
+		}
+
+
+		source += ".keyFrameAnimation" + this.id + "{\n";
+
+		source += "\tanimation-name: " + names.join(",") + ";\n";
+
+		source += "\tanimation-duration: " + durations.join(",") + ";\n";
+
+		source += "\tanimation-iteration-count: " + interationCounts.join(",") + ";\n";
+
+		source += "\tanimation-fill-mode: " + fillModes.join(",") + ";\n";
+
+		source += "\tanimation-direction: " + directions.join(",") + ";\n";
+
+		source += "}";
+
+
+		return source;
+
+	}
+
+	composeCss() {
+
+		var source	= "";
+
+		source += this.composeKeyFrameCss( source );
+
+		source += this.composeAnimationCss( source );
+
+		return source;
+
+	}
+
+	addPromise( promiseObject ) {
+	
+		this.promises[ promiseObject.id ] = promiseObject;
+
+	}
+	
+	getPromiseByID( id ) {
+	
+		return this.promises[ id ];
+
+	}
+	
+	createPromiseFunction( animationID ) {
+		
+		var that = this;
+
+		function promiseFunction( resolveFunction ){
+
+			var promiseObject 		= {};
+
+			promiseObject.id 		= animationID;
+
+			promiseObject.resolve 	= resolveFunction;
+
+			that.addPromise( promiseObject );
+		}
+
+		return promiseFunction;
+
+	}
+	
+	attach( object ){
+		
+		object.__proto__.animate = this.createCallback( object );
+
+		var animationManager = this;
+
+		object.createAnimation = function( name ) {
+
+			return object.animationManager.createAnimation( name );
+
+		}
+
+		this.element = object.element;
+
+	}
+	
+	createCallback( object ) {
+
+		object.animationManager.object = object;
+	
+		return async function( from, to, callback ) {
+
+			return object.animationManager.animate( from, to, callback );  
+			
+		}
+
+	}
+	
+	async animate( from, to, callback, firstTick = true, animationID, value = false, start = false ) {
+
+		var object = this.object;
+
+		if( firstTick ) {
+		
+			animationID = document.animationID++;
+				
+		}
+
+		var sign = Math.sign( from - to );
+
+		var stop = false;
+
+		if( sign > 0) {
+		
+			value = from - value;
+			
+			if( value < to ) {
+			
+				var stop = true;
+			
+			}
+		
+		} else {
+		
+			value = from + value;
+		
+			if( value > to ) {
+			
+				var stop = true;
+			
+			}
+		
+		}
+
+		if( firstTick ) {
+
+			this.object[ "animationCallback" + animationID ] = callback;
+
+		}
+
+		if( !stop ) {
+
+			this.object[ "animationCallback" + animationID ]( value );
+			
+			window.requestAnimationFrame( function( timestamp ) {
+			
+				if( !start ) {
+				
+					start = timestamp;
+				
+				}
+
+				var progress = ( timestamp - start );
+				
+				object.animationManager.animate( from, to, callback, false, animationID, progress, start );
+
+			});
+			
+		} else {
+		
+			var promise = this.getPromiseByID( animationID );
+			
+			promise.resolve();
+			
+		}
+
+		if( firstTick ) {
+
+			this.object[ "animationCallback" + animationID ]( value );
+
+			var promiseFunction = this.createPromiseFunction( animationID );
+
+			await new Promise(  promiseFunction  )
+			
+			return true;
+
+		}
+		
+	}
+
+	createEventListener() {
+
+		var that	= this;
+
+		if( this.element.keyFrameEventListener ) {
+
+			canvas.removeEventListener('click', this.element.keyFrameEventListener);
+
+		}
+
+		this.element.keyFrameEventListener = this.element.addEventListener("animationend", async function( event ) {
+
+			var animations 		= that.animations;
+
+			var animationName	= event.animationName;
+
+			//console.log(animationName, that.promises);
+
+			//console.log(animations, animationName)
+
+			var currentAnimation = animations[ animationName ];
+
+			console.log("turn off animation", currentAnimation);
+
+			currentAnimation.active = false;
+
+			//console.log("promise with animationName", animationName, "and animationID", currentAnimation.animationID, "removed");
+
+			if( currentAnimation ) {
+
+				var promise = that.promises[currentAnimation.id];
+				
+				if( promise ) {
+
+					promise.resolve();
+
+				} else {
+
+					return false;
+
+				}
+
+
+			}
+
+			//console.log("ended animation", currentAnimation);
+
+			that.promises.splice( currentAnimation.id, 1, false )
+
+			for (var i = 0; i < that.promises.length; i++) {
+
+				if( that.promises[i] ) {
+
+					return false
+
+				}
+			}
+
+			//console.log("all promises are resolved resetting animation");
+
+			//that.resetAnimation();
+
+			var animationClassName = that.getAnimationClassName();
+
+			that.element.classList.remove(animationClassName);
+
+		}, false);
+
+		return true;
+
+	}
+
+	resetAnimation() {
+
+		//if( this.element.classList.contains("keyFrameAnimations") ) {
+
+			this.element.classList.remove("keyFrameAnimations")
+
+		//}
+
+	}
+
+}
+