diff --git a/README.md b/README.md index 04313dfd..56d4dee4 100644 --- a/README.md +++ b/README.md @@ -625,9 +625,53 @@ Reveal.initialize({ }); ``` +## Leap Motion +The Leap Motion plugin lets you utilize your [Leap Motion](https://www.leapmotion.com/) device to control basic navigation of your presentation. The gestures currently supported are: + +##### 1 to 2 fingers +* Pointer — Point to anything on screen. Move your finger past the device to expand the pointer. + +##### 1 hand + 3 or more fingers + +* Left +* Right +* Up +* down + +Navigate through your slides. See config options to invert movements. + +##### 2 hands +* Up + +Toggle the overview mode. Do it a second time to exit the overview. + +#### Config Options +You can edit the following options: +* autoCenter: Defaults to true. Center the pointer based on where you put your finger into the leap motions detection field. +* gestureDelay: Defaults to 500. How long to delay between gestures in milliseconds. +* naturalSwipe: Defaults to true. Swipe as though you were touching a touch screen. Set to false to invert. +* pointerColor: Defaults to #00aaff. The color of the pointer. +* pointerOpacity: Defaults to 0.7. The opacity of the pointer. +* pointerSize: Defaults to 15. The minimum height and width of the pointer. +* pointerTolerance: Defaults to 120. Bigger = slower pointer. + +Example configuration: +```js +Reveal.initialize({ + // other options + leap: { + naturalSwipe : false, // Invert swipe gestures + pointerOpacity : 0.5, // Set pointer opacity to 0.5 + pointerColor : '#d80000' // Red pointer + } + + // Optional libraries used to extend on reveal.js + { src: 'plugin/leap/leap.js', async: true } +``` + ## Installation -The **basic setup** is for authoring presentations only. The **full setup** gives you access to all reveal.js features as well as the development tasks needed to make changes to the source. +The **basic setup** is for authoring presentations only. The **full setup** gives you access to all reveal.js features and plugins such as speaker notes as well as the development tasks needed to make changes to the source. ### Basic setup diff --git a/css/reveal.css b/css/reveal.css index ad55cf86..b88815b8 100644 --- a/css/reveal.css +++ b/css/reveal.css @@ -1605,3 +1605,12 @@ body { } +/********************************************* + * LEAP PLUGIN + *********************************************/ + +#leap { + position: absolute; + z-index: 50; + visibility: hidden; +} diff --git a/css/reveal.min.css b/css/reveal.min.css index 874eda98..2ba3965a 100644 --- a/css/reveal.min.css +++ b/css/reveal.min.css @@ -4,4 +4,4 @@ * MIT licensed * * Copyright (C) 2013 Hakim El Hattab, http://hakim.se - */ html,body,.reveal div,.reveal span,.reveal applet,.reveal object,.reveal iframe,.reveal h1,.reveal h2,.reveal h3,.reveal h4,.reveal h5,.reveal h6,.reveal p,.reveal blockquote,.reveal pre,.reveal a,.reveal abbr,.reveal acronym,.reveal address,.reveal 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.progress,.zoomed .reveal .controls{opacity:0}.zoomed .reveal .roll span{background:0}.zoomed .reveal .roll span:after{visibility:hidden}#leap{position:absolute;z-index:50;visibility:hidden;} diff --git a/index.html b/index.html index fab2780d..8df38ed0 100644 --- a/index.html +++ b/index.html @@ -371,6 +371,7 @@ function linkify( selector ) { { src: 'plugin/highlight/highlight.js', async: true, callback: function() { hljs.initHighlightingOnLoad(); } }, { src: 'plugin/zoom-js/zoom.js', async: true, condition: function() { return !!document.body.classList; } }, { src: 'plugin/notes/notes.js', async: true, condition: function() { return !!document.body.classList; } } + // { src: 'plugin/leap/leap.js', async: true } // { src: 'plugin/search/search.js', async: true, condition: function() { return !!document.body.classList; } } // { src: 'plugin/remotes/remotes.js', async: true, condition: function() { return !!document.body.classList; } } ] diff --git a/plugin/leap/leap.js b/plugin/leap/leap.js new file mode 100644 index 00000000..8ba00636 --- /dev/null +++ b/plugin/leap/leap.js @@ -0,0 +1,154 @@ +/* + * Copyright (c) 2013, Leap Motion, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Version 0.2.0 - http://js.leapmotion.com/0.2.0/leap.min.js + * Grab latest versions from http://js.leapmotion.com/ + */ + +!function(e,t,n){function i(n,s){if(!t[n]){if(!e[n]){var o=typeof require=="function"&&require;if(!s&&o)return o(n,!0);if(r)return r(n,!0);throw new Error("Cannot find module '"+n+"'")}var u=t[n]={exports:{}};e[n][0].call(u.exports,function(t){var r=e[n][1][t];return i(r?r:t)},u,u.exports)}return t[n].exports}var r=typeof require=="function"&&require;for(var s=0;s=this.size)return undefined;if(i>=this._buf.length)return undefined;return this._buf[(this.pos-i-1)%this.size]};CircularBuffer.prototype.push=function(o){this._buf[this.pos%this.size]=o;return this.pos++}},{}],3:[function(require,module,exports){var Connection=module.exports=require("./base_connection");Connection.prototype.setupSocket=function(){var connection=this;var socket=new WebSocket(this.getUrl());socket.onopen=function(){connection.handleOpen()};socket.onmessage=function(message){connection.handleData(message.data)};socket.onclose=function(){connection.handleClose()};return socket};Connection.prototype.startHeartbeat=function(){if(!this.protocol.sendHeartbeat||this.heartbeatTimer)return;var connection=this;var propertyName=null;if(typeof document.hidden!=="undefined"){propertyName="hidden"}else if(typeof document.mozHidden!=="undefined"){propertyName="mozHidden"}else if(typeof document.msHidden!=="undefined"){propertyName="msHidden"}else if(typeof document.webkitHidden!=="undefined"){propertyName="webkitHidden"}else{propertyName=undefined}var windowVisible=true;var focusListener=window.addEventListener("focus",function(e){windowVisible=true});var blurListener=window.addEventListener("blur",function(e){windowVisible=false});this.on("disconnect",function(){if(connection.heartbeatTimer){clearTimeout(connection.heartbeatTimer);delete connection.heartbeatTimer}window.removeEventListener(focusListener);window.removeEventListener(blurListener)});this.heartbeatTimer=setInterval(function(){var isVisible=propertyName===undefined?true:document[propertyName]===false;if(isVisible&&windowVisible){connection.sendHeartbeat()}else{connection.setHeartbeatState(false)}},this.opts.heartbeatInterval)}},{"./base_connection":1}],4:[function(require,module,exports){!function(process){var Frame=require("./frame"),CircularBuffer=require("./circular_buffer"),Pipeline=require("./pipeline"),EventEmitter=require("events").EventEmitter,gestureListener=require("./gesture").gestureListener,_=require("underscore");var Controller=module.exports=function(opts){var inNode=typeof process!=="undefined"&&process.title==="node";opts=_.defaults(opts||{},{inNode:inNode});this.inNode=opts.inNode;opts=_.defaults(opts||{},{frameEventName:this.useAnimationLoop()?"animationFrame":"deviceFrame",supressAnimationLoop:false});this.supressAnimationLoop=opts.supressAnimationLoop;this.frameEventName=opts.frameEventName;this.history=new CircularBuffer(200);this.lastFrame=Frame.Invalid;this.lastValidFrame=Frame.Invalid;this.lastConnectionFrame=Frame.Invalid;this.accumulatedGestures=[];if(opts.connectionType===undefined){this.connectionType=this.inBrowser()?require("./connection"):require("./node_connection")}else{this.connectionType=opts.connectionType}this.connection=new this.connectionType(opts);this.setupConnectionEvents()};Controller.prototype.gesture=function(type,cb){var creator=gestureListener(this,type);if(cb!==undefined){creator.stop(cb)}return creator};Controller.prototype.inBrowser=function(){return!this.inNode};Controller.prototype.useAnimationLoop=function(){return this.inBrowser()&&typeof chrome==="undefined"};Controller.prototype.connect=function(){var controller=this;if(this.connection.connect()&&this.inBrowser()&&!controller.supressAnimationLoop){var callback=function(){controller.emit("animationFrame",controller.lastConnectionFrame);window.requestAnimFrame(callback)};window.requestAnimFrame(callback)}};Controller.prototype.disconnect=function(){this.connection.disconnect()};Controller.prototype.frame=function(num){return this.history.get(num)||Frame.Invalid};Controller.prototype.loop=function(callback){switch(callback.length){case 1:this.on(this.frameEventName,callback);break;case 2:var controller=this;var scheduler=null;var immediateRunnerCallback=function(frame){callback(frame,function(){if(controller.lastFrame!=frame){immediateRunnerCallback(controller.lastFrame)}else{controller.once(controller.frameEventName,immediateRunnerCallback)}})};this.once(this.frameEventName,immediateRunnerCallback);break}this.connect()};Controller.prototype.addStep=function(step){if(!this.pipeline)this.pipeline=new Pipeline(this);this.pipeline.addStep(step)};Controller.prototype.processFrame=function(frame){if(frame.gestures){this.accumulatedGestures=this.accumulatedGestures.concat(frame.gestures)}if(this.pipeline){frame=this.pipeline.run(frame);if(!frame)frame=Frame.Invalid}this.lastConnectionFrame=frame;this.emit("deviceFrame",frame)};Controller.prototype.processFinishedFrame=function(frame){this.lastFrame=frame;if(frame.valid){this.lastValidFrame=frame}frame.controller=this;frame.historyIdx=this.history.push(frame);if(frame.gestures){frame.gestures=this.accumulatedGestures;this.accumulatedGestures=[];for(var gestureIdx=0;gestureIdx!=frame.gestures.length;gestureIdx++){this.emit("gesture",frame.gestures[gestureIdx],frame)}}this.emit("frame",frame)};Controller.prototype.setupConnectionEvents=function(){var controller=this;this.connection.on("frame",function(frame){controller.processFrame(frame)});this.on(this.frameEventName,function(frame){controller.processFinishedFrame(frame)});this.connection.on("disconnect",function(){controller.emit("disconnect")});this.connection.on("ready",function(){controller.emit("ready")});this.connection.on("connect",function(){controller.emit("connect")});this.connection.on("focus",function(){controller.emit("focus")});this.connection.on("blur",function(){controller.emit("blur")});this.connection.on("protocol",function(protocol){controller.emit("protocol",protocol)});this.connection.on("deviceConnect",function(evt){controller.emit(evt.state?"deviceConnected":"deviceDisconnected")})};_.extend(Controller.prototype,EventEmitter.prototype)}(require("__browserify_process"))},{"./circular_buffer":2,"./connection":3,"./frame":5,"./gesture":6,"./node_connection":16,"./pipeline":10,__browserify_process:18,events:17,underscore:20}],5:[function(require,module,exports){var Hand=require("./hand"),Pointable=require("./pointable"),createGesture=require("./gesture").createGesture,glMatrix=require("gl-matrix"),mat3=glMatrix.mat3,vec3=glMatrix.vec3,InteractionBox=require("./interaction_box"),_=require("underscore");var Frame=module.exports=function(data){this.valid=true;this.id=data.id;this.timestamp=data.timestamp;this.hands=[];this.handsMap={};this.pointables=[];this.tools=[];this.fingers=[];if(data.interactionBox){this.interactionBox=new InteractionBox(data.interactionBox)}this.gestures=[];this.pointablesMap={};this._translation=data.t;this._rotation=_.flatten(data.r);this._scaleFactor=data.s;this.data=data;this.type="frame";this.currentFrameRate=data.currentFrameRate;var handMap={};for(var handIdx=0,handCount=data.hands.length;handIdx!=handCount;handIdx++){var hand=new Hand(data.hands[handIdx]);hand.frame=this;this.hands.push(hand);this.handsMap[hand.id]=hand;handMap[hand.id]=handIdx}for(var pointableIdx=0,pointableCount=data.pointables.length;pointableIdx!=pointableCount;pointableIdx++){var pointable=new Pointable(data.pointables[pointableIdx]);pointable.frame=this;this.pointables.push(pointable);this.pointablesMap[pointable.id]=pointable;(pointable.tool?this.tools:this.fingers).push(pointable);if(pointable.handId!==undefined&&handMap.hasOwnProperty(pointable.handId)){var hand=this.hands[handMap[pointable.handId]];hand.pointables.push(pointable);(pointable.tool?hand.tools:hand.fingers).push(pointable)}}if(data.gestures){for(var gestureIdx=0,gestureCount=data.gestures.length;gestureIdx!=gestureCount;gestureIdx++){this.gestures.push(createGesture(data.gestures[gestureIdx]))}}};Frame.prototype.tool=function(id){var pointable=this.pointable(id);return pointable.tool?pointable:Pointable.Invalid};Frame.prototype.pointable=function(id){return this.pointablesMap[id]||Pointable.Invalid};Frame.prototype.finger=function(id){var pointable=this.pointable(id);return!pointable.tool?pointable:Pointable.Invalid};Frame.prototype.hand=function(id){return this.handsMap[id]||Hand.Invalid};Frame.prototype.rotationAngle=function(sinceFrame,axis){if(!this.valid||!sinceFrame.valid)return 0;var rot=this.rotationMatrix(sinceFrame);var cs=(rot[0]+rot[4]+rot[8]-1)*.5;var angle=Math.acos(cs);angle=isNaN(angle)?0:angle;if(axis!==undefined){var rotAxis=this.rotationAxis(sinceFrame);angle*=vec3.dot(rotAxis,vec3.normalize(vec3.create(),axis))}return angle};Frame.prototype.rotationAxis=function(sinceFrame){if(!this.valid||!sinceFrame.valid)return vec3.create();return vec3.normalize(vec3.create(),[this._rotation[7]-sinceFrame._rotation[5],this._rotation[2]-sinceFrame._rotation[6],this._rotation[3]-sinceFrame._rotation[1]])};Frame.prototype.rotationMatrix=function(sinceFrame){if(!this.valid||!sinceFrame.valid)return mat3.create();var transpose=mat3.transpose(mat3.create(),this._rotation);return mat3.multiply(mat3.create(),sinceFrame._rotation,transpose)};Frame.prototype.scaleFactor=function(sinceFrame){if(!this.valid||!sinceFrame.valid)return 1;return Math.exp(this._scaleFactor-sinceFrame._scaleFactor)};Frame.prototype.translation=function(sinceFrame){if(!this.valid||!sinceFrame.valid)return vec3.create();return vec3.subtract(vec3.create(),this._translation,sinceFrame._translation)};Frame.prototype.toString=function(){var str="Frame [ id:"+this.id+" | timestamp:"+this.timestamp+" | Hand count:("+this.hands.length+") | Pointable count:("+this.pointables.length+")";if(this.gestures)str+=" | Gesture count:("+this.gestures.length+")";str+=" ]";return str};Frame.prototype.dump=function(){var out="";out+="Frame Info:
";out+=this.toString();out+="

Hands:
";for(var handIdx=0,handCount=this.hands.length;handIdx!=handCount;handIdx++){out+=" "+this.hands[handIdx].toString()+"
"}out+="

Pointables:
";for(var pointableIdx=0,pointableCount=this.pointables.length;pointableIdx!=pointableCount;pointableIdx++){out+=" "+this.pointables[pointableIdx].toString()+"
"}if(this.gestures){out+="

Gestures:
";for(var gestureIdx=0,gestureCount=this.gestures.length;gestureIdx!=gestureCount;gestureIdx++){out+=" "+this.gestures[gestureIdx].toString()+"
"}}out+="

Raw JSON:
";out+=JSON.stringify(this.data);return out};Frame.Invalid={valid:false,hands:[],fingers:[],tools:[],gestures:[],pointables:[],pointable:function(){return Pointable.Invalid},finger:function(){return Pointable.Invalid},hand:function(){return Hand.Invalid},toString:function(){return"invalid frame"},dump:function(){return this.toString()},rotationAngle:function(){return 0},rotationMatrix:function(){return mat3.create()},rotationAxis:function(){return vec3.create()},scaleFactor:function(){return 1},translation:function(){return vec3.create()}}},{"./gesture":6,"./hand":7,"./interaction_box":9,"./pointable":11,"gl-matrix":19,underscore:20}],6:[function(require,module,exports){var glMatrix=require("gl-matrix"),vec3=glMatrix.vec3,EventEmitter=require("events").EventEmitter,_=require("underscore");var createGesture=exports.createGesture=function(data){var gesture;switch(data.type){case"circle":gesture=new CircleGesture(data);break;case"swipe":gesture=new SwipeGesture(data);break;case"screenTap":gesture=new ScreenTapGesture(data);break;case"keyTap":gesture=new KeyTapGesture(data);break;default:throw"unkown gesture type"}gesture.id=data.id;gesture.handIds=data.handIds;gesture.pointableIds=data.pointableIds;gesture.duration=data.duration;gesture.state=data.state;gesture.type=data.type;return gesture};var gestureListener=exports.gestureListener=function(controller,type){var handlers={};var gestureMap={};var gestureCreator=function(){var candidateGesture=gestureMap[gesture.id];if(candidateGesture!==undefined)gesture.update(gesture,frame);if(gesture.state=="start"||gesture.state=="stop"){if(type==gesture.type&&gestureMap[gesture.id]===undefined){gestureMap[gesture.id]=new Gesture(gesture,frame);gesture.update(gesture,frame)}if(gesture.state=="stop"){delete gestureMap[gesture.id]}}};controller.on("gesture",function(gesture,frame){if(gesture.type==type){if(gesture.state=="start"||gesture.state=="stop"){if(gestureMap[gesture.id]===undefined){var gestureTracker=new Gesture(gesture,frame);gestureMap[gesture.id]=gestureTracker;_.each(handlers,function(cb,name){gestureTracker.on(name,cb)})}}gestureMap[gesture.id].update(gesture,frame);if(gesture.state=="stop"){delete gestureMap[gesture.id]}}});var builder={start:function(cb){handlers["start"]=cb;return builder},stop:function(cb){handlers["stop"]=cb;return builder},complete:function(cb){handlers["stop"]=cb;return builder},update:function(cb){handlers["update"]=cb;return builder}};return builder};var Gesture=exports.Gesture=function(gesture,frame){this.gestures=[gesture];this.frames=[frame]};Gesture.prototype.update=function(gesture,frame){this.gestures.push(gesture);this.frames.push(frame);this.emit(gesture.state,this)};_.extend(Gesture.prototype,EventEmitter.prototype);var CircleGesture=function(data){this.center=data.center;this.normal=data.normal;this.progress=data.progress;this.radius=data.radius};CircleGesture.prototype.toString=function(){return"CircleGesture ["+JSON.stringify(this)+"]"};var SwipeGesture=function(data){this.startPosition=data.startPosition;this.position=data.position;this.direction=data.direction;this.speed=data.speed};SwipeGesture.prototype.toString=function(){return"SwipeGesture ["+JSON.stringify(this)+"]"};var ScreenTapGesture=function(data){this.position=data.position;this.direction=data.direction;this.progress=data.progress};ScreenTapGesture.prototype.toString=function(){return"ScreenTapGesture ["+JSON.stringify(this)+"]"};var KeyTapGesture=function(data){this.position=data.position;this.direction=data.direction;this.progress=data.progress};KeyTapGesture.prototype.toString=function(){return"KeyTapGesture ["+JSON.stringify(this)+"]"}},{events:17,"gl-matrix":19,underscore:20}],7:[function(require,module,exports){var Pointable=require("./pointable"),glMatrix=require("gl-matrix"),mat3=glMatrix.mat3,vec3=glMatrix.vec3,_=require("underscore");var Hand=module.exports=function(data){this.id=data.id;this.palmPosition=data.palmPosition;this.direction=data.direction;this.palmVelocity=data.palmVelocity;this.palmNormal=data.palmNormal;this.sphereCenter=data.sphereCenter;this.sphereRadius=data.sphereRadius;this.valid=true;this.pointables=[];this.fingers=[];this.tools=[];this._translation=data.t;this._rotation=_.flatten(data.r);this._scaleFactor=data.s;this.timeVisible=data.timeVisible;this.stabilizedPalmPosition=data.stabilizedPalmPosition};Hand.prototype.finger=function(id){var finger=this.frame.finger(id);return finger&&finger.handId==this.id?finger:Pointable.Invalid};Hand.prototype.rotationAngle=function(sinceFrame,axis){if(!this.valid||!sinceFrame.valid)return 0;var sinceHand=sinceFrame.hand(this.id);if(!sinceHand.valid)return 0;var rot=this.rotationMatrix(sinceFrame);var cs=(rot[0]+rot[4]+rot[8]-1)*.5;var angle=Math.acos(cs);angle=isNaN(angle)?0:angle;if(axis!==undefined){var rotAxis=this.rotationAxis(sinceFrame);angle*=vec3.dot(rotAxis,vec3.normalize(vec3.create(),axis))}return angle};Hand.prototype.rotationAxis=function(sinceFrame){if(!this.valid||!sinceFrame.valid)return vec3.create();var sinceHand=sinceFrame.hand(this.id);if(!sinceHand.valid)return vec3.create();return vec3.normalize(vec3.create(),[this._rotation[7]-sinceHand._rotation[5],this._rotation[2]-sinceHand._rotation[6],this._rotation[3]-sinceHand._rotation[1]])};Hand.prototype.rotationMatrix=function(sinceFrame){if(!this.valid||!sinceFrame.valid)return mat3.create();var sinceHand=sinceFrame.hand(this.id);if(!sinceHand.valid)return mat3.create();var transpose=mat3.transpose(mat3.create(),this._rotation);var m=mat3.multiply(mat3.create(),sinceHand._rotation,transpose);return m};Hand.prototype.scaleFactor=function(sinceFrame){if(!this.valid||!sinceFrame.valid)return 1;var sinceHand=sinceFrame.hand(this.id);if(!sinceHand.valid)return 1;return Math.exp(this._scaleFactor-sinceHand._scaleFactor)};Hand.prototype.translation=function(sinceFrame){if(!this.valid||!sinceFrame.valid)return vec3.create();var sinceHand=sinceFrame.hand(this.id);if(!sinceHand.valid)return vec3.create();return[this._translation[0]-sinceHand._translation[0],this._translation[1]-sinceHand._translation[1],this._translation[2]-sinceHand._translation[2]]};Hand.prototype.toString=function(){return"Hand [ id: "+this.id+" | palm velocity:"+this.palmVelocity+" | sphere center:"+this.sphereCenter+" ] "};Hand.Invalid={valid:false,fingers:[],tools:[],pointables:[],pointable:function(){return Pointable.Invalid},finger:function(){return Pointable.Invalid},toString:function(){return"invalid frame"},dump:function(){return this.toString()},rotationAngle:function(){return 0},rotationMatrix:function(){return mat3.create()},rotationAxis:function(){return vec3.create()},scaleFactor:function(){return 1},translation:function(){return vec3.create()}}},{"./pointable":11,"gl-matrix":19,underscore:20}],8:[function(require,module,exports){!function(){module.exports={Controller:require("./controller"),Frame:require("./frame"),Gesture:require("./gesture"),Hand:require("./hand"),Pointable:require("./pointable"),InteractionBox:require("./interaction_box"),Connection:require("./connection"),CircularBuffer:require("./circular_buffer"),UI:require("./ui"),glMatrix:require("gl-matrix"),mat3:require("gl-matrix").mat3,vec3:require("gl-matrix").vec3,loopController:undefined,loop:function(opts,callback){if(callback===undefined){callback=opts;opts={}}if(!this.loopController)this.loopController=new this.Controller(opts);this.loopController.loop(callback)}}}()},{"./circular_buffer":2,"./connection":3,"./controller":4,"./frame":5,"./gesture":6,"./hand":7,"./interaction_box":9,"./pointable":11,"./ui":13,"gl-matrix":19}],9:[function(require,module,exports){var glMatrix=require("gl-matrix"),vec3=glMatrix.vec3;var InteractionBox=module.exports=function(data){this.valid=true;this.center=data.center;this.size=data.size;this.width=data.size[0];this.height=data.size[1];this.depth=data.size[2]};InteractionBox.prototype.denormalizePoint=function(normalizedPosition){return vec3.fromValues((normalizedPosition[0]-.5)*this.size[0]+this.center[0],(normalizedPosition[1]-.5)*this.size[1]+this.center[1],(normalizedPosition[2]-.5)*this.size[2]+this.center[2])};InteractionBox.prototype.normalizePoint=function(position,clamp){var vec=vec3.fromValues((position[0]-this.center[0])/this.size[0]+.5,(position[1]-this.center[1])/this.size[1]+.5,(position[2]-this.center[2])/this.size[2]+.5);if(clamp){vec[0]=Math.min(Math.max(vec[0],0),1);vec[1]=Math.min(Math.max(vec[1],0),1);vec[2]=Math.min(Math.max(vec[2],0),1)}return vec};InteractionBox.prototype.toString=function(){return"InteractionBox [ width:"+this.width+" | height:"+this.height+" | depth:"+this.depth+" ]"};InteractionBox.Invalid={valid:false}},{"gl-matrix":19}],10:[function(require,module,exports){var Pipeline=module.exports=function(){this.steps=[]};Pipeline.prototype.addStep=function(step){this.steps.push(step)};Pipeline.prototype.run=function(frame){var stepsLength=this.steps.length;for(var i=0;i!=stepsLength;i++){if(!frame)break;frame=this.steps[i](frame)}return frame}},{}],11:[function(require,module,exports){var glMatrix=require("gl-matrix"),vec3=glMatrix.vec3;var Pointable=module.exports=function(data){this.valid=true;this.id=data.id;this.handId=data.handId;this.length=data.length;this.tool=data.tool;this.width=data.width;this.direction=data.direction;this.stabilizedTipPosition=data.stabilizedTipPosition;this.tipPosition=data.tipPosition;this.tipVelocity=data.tipVelocity;this.touchZone=data.touchZone;this.touchDistance=data.touchDistance;this.timeVisible=data.timeVisible};Pointable.prototype.toString=function(){if(this.tool==true){return"Pointable [ id:"+this.id+" "+this.length+"mmx | with:"+this.width+"mm | direction:"+this.direction+" ]"}else{return"Pointable [ id:"+this.id+" "+this.length+"mmx | direction: "+this.direction+" ]"}};Pointable.Invalid={valid:false}},{"gl-matrix":19}],12:[function(require,module,exports){var Frame=require("./frame");var Event=function(data){this.type=data.type;this.state=data.state};var chooseProtocol=exports.chooseProtocol=function(header){var protocol;switch(header.version){case 1:protocol=JSONProtocol(1,function(data){return new Frame(data)});break;case 2:protocol=JSONProtocol(2,function(data){return new Frame(data)});protocol.sendHeartbeat=function(connection){connection.send(protocol.encode({heartbeat:true}))};break;case 3:protocol=JSONProtocol(3,function(data){return data.event?new Event(data.event):new Frame(data)});protocol.sendHeartbeat=function(connection){connection.send(protocol.encode({heartbeat:true}))};break;default:throw"unrecognized version"}return protocol};var JSONProtocol=function(version,cb){var protocol=cb;protocol.encode=function(message){return JSON.stringify(message)};protocol.version=version;protocol.versionLong="Version "+version;protocol.type="protocol";return protocol}},{"./frame":5}],13:[function(require,module,exports){exports.UI={Region:require("./ui/region"),Cursor:require("./ui/cursor")}},{"./ui/cursor":14,"./ui/region":15}],14:[function(require,module,exports){var Cursor=module.exports=function(){return function(frame){var pointable=frame.pointables.sort(function(a,b){return a.z-b.z})[0];if(pointable&&pointable.valid){frame.cursorPosition=pointable.tipPosition}return frame}}},{}],15:[function(require,module,exports){var EventEmitter=require("events").EventEmitter,_=require("underscore");var Region=module.exports=function(start,end){this.start=new Vector(start);this.end=new Vector(end);this.enteredFrame=null};Region.prototype.hasPointables=function(frame){for(var i=0;i!=frame.pointables.length;i++){var position=frame.pointables[i].tipPosition;if(position.x>=this.start.x&&position.x<=this.end.x&&position.y>=this.start.y&&position.y<=this.end.y&&position.z>=this.start.z&&position.z<=this.end.z){return true}}return false};Region.prototype.listener=function(opts){var region=this;if(opts&&opts.nearThreshold)this.setupNearRegion(opts.nearThreshold);return function(frame){return region.updatePosition(frame)}};Region.prototype.clipper=function(){var region=this;return function(frame){region.updatePosition(frame);return region.enteredFrame?frame:null}};Region.prototype.setupNearRegion=function(distance){var nearRegion=this.nearRegion=new Region([this.start.x-distance,this.start.y-distance,this.start.z-distance],[this.end.x+distance,this.end.y+distance,this.end.z+distance]);var region=this;nearRegion.on("enter",function(frame){region.emit("near",frame)});nearRegion.on("exit",function(frame){region.emit("far",frame)});region.on("exit",function(frame){region.emit("near",frame)})};Region.prototype.updatePosition=function(frame){if(this.nearRegion)this.nearRegion.updatePosition(frame);if(this.hasPointables(frame)&&this.enteredFrame==null){this.enteredFrame=frame;this.emit("enter",this.enteredFrame)}else if(!this.hasPointables(frame)&&this.enteredFrame!=null){this.enteredFrame=null;this.emit("exit",this.enteredFrame)}return frame};Region.prototype.normalize=function(position){return new Vector([(position.x-this.start.x)/(this.end.x-this.start.x),(position.y-this.start.y)/(this.end.y-this.start.y),(position.z-this.start.z)/(this.end.z-this.start.z)])};Region.prototype.mapToXY=function(position,width,height){var normalized=this.normalize(position);var x=normalized.x,y=normalized.y;if(x>1)x=1;else if(x<-1)x=-1;if(y>1)y=1;else if(y<-1)y=-1;return[(x+1)/2*width,(1-y)/2*height,normalized.z]};_.extend(Region.prototype,EventEmitter.prototype)},{events:17,underscore:20}],16:[function(require,module,exports){},{}],17:[function(require,module,exports){!function(process){if(!process.EventEmitter)process.EventEmitter=function(){};var EventEmitter=exports.EventEmitter=process.EventEmitter;var isArray=typeof Array.isArray==="function"?Array.isArray:function(xs){return Object.prototype.toString.call(xs)==="[object Array]"};function indexOf(xs,x){if(xs.indexOf)return xs.indexOf(x);for(var i=0;i0&&this._events[type].length>m){this._events[type].warned=true;console.error("(node) warning: possible EventEmitter memory "+"leak detected. %d listeners added. "+"Use emitter.setMaxListeners() to increase limit.",this._events[type].length);console.trace()}}this._events[type].push(listener)}else{this._events[type]=[this._events[type],listener]}return this};EventEmitter.prototype.on=EventEmitter.prototype.addListener;EventEmitter.prototype.once=function(type,listener){var self=this;self.on(type,function g(){self.removeListener(type,g);listener.apply(this,arguments)});return this};EventEmitter.prototype.removeListener=function(type,listener){if("function"!==typeof listener){throw new Error("removeListener only takes instances of Function")}if(!this._events||!this._events[type])return this;var list=this._events[type];if(isArray(list)){var i=indexOf(list,listener);if(i<0)return this;list.splice(i,1);if(list.length==0)delete this._events[type]}else if(this._events[type]===listener){delete this._events[type]}return this};EventEmitter.prototype.removeAllListeners=function(type){if(arguments.length===0){this._events={};return this}if(type&&this._events&&this._events[type])this._events[type]=null;return this};EventEmitter.prototype.listeners=function(type){if(!this._events)this._events={};if(!this._events[type])this._events[type]=[];if(!isArray(this._events[type])){this._events[type]=[this._events[type]]}return this._events[type]}}(require("__browserify_process"))},{__browserify_process:18}],18:[function(require,module,exports){var process=module.exports={};process.nextTick=function(){var canSetImmediate=typeof window!=="undefined"&&window.setImmediate;var canPost=typeof window!=="undefined"&&window.postMessage&&window.addEventListener;if(canSetImmediate){return function(f){return window.setImmediate(f)}}if(canPost){var queue=[];window.addEventListener("message",function(ev){if(ev.source===window&&ev.data==="process-tick"){ev.stopPropagation();if(queue.length>0){var fn=queue.shift();fn()}}},true);return function nextTick(fn){queue.push(fn);window.postMessage("process-tick","*")}}return function nextTick(fn){setTimeout(fn,0)}}();process.title="browser";process.browser=true;process.env={};process.argv=[];process.binding=function(name){throw new Error("process.binding is not supported")};process.cwd=function(){return"/"};process.chdir=function(dir){throw new Error("process.chdir is not supported")}},{}],19:[function(require,module,exports){!function(){!function(){"use strict";var shim={};if(typeof exports==="undefined"){if(typeof define=="function"&&typeof define.amd=="object"&&define.amd){shim.exports={};define(function(){return shim.exports})}else{shim.exports=window}}else{shim.exports=exports}!function(exports){var vec2={};if(!GLMAT_EPSILON){var GLMAT_EPSILON=1e-6}vec2.create=function(){return new Float32Array(2)};vec2.clone=function(a){var out=new Float32Array(2);out[0]=a[0];out[1]=a[1];return out};vec2.fromValues=function(x,y){var out=new Float32Array(2);out[0]=x;out[1]=y;return out};vec2.copy=function(out,a){out[0]=a[0];out[1]=a[1];return out};vec2.set=function(out,x,y){out[0]=x;out[1]=y;return out};vec2.add=function(out,a,b){out[0]=a[0]+b[0];out[1]=a[1]+b[1];return out};vec2.sub=vec2.subtract=function(out,a,b){out[0]=a[0]-b[0];out[1]=a[1]-b[1];return out};vec2.mul=vec2.multiply=function(out,a,b){out[0]=a[0]*b[0];out[1]=a[1]*b[1];return out};vec2.div=vec2.divide=function(out,a,b){out[0]=a[0]/b[0];out[1]=a[1]/b[1];return out};vec2.min=function(out,a,b){out[0]=Math.min(a[0],b[0]); +out[1]=Math.min(a[1],b[1]);return out};vec2.max=function(out,a,b){out[0]=Math.max(a[0],b[0]);out[1]=Math.max(a[1],b[1]);return out};vec2.scale=function(out,a,b){out[0]=a[0]*b;out[1]=a[1]*b;return out};vec2.dist=vec2.distance=function(a,b){var x=b[0]-a[0],y=b[1]-a[1];return Math.sqrt(x*x+y*y)};vec2.sqrDist=vec2.squaredDistance=function(a,b){var x=b[0]-a[0],y=b[1]-a[1];return x*x+y*y};vec2.len=vec2.length=function(a){var x=a[0],y=a[1];return Math.sqrt(x*x+y*y)};vec2.sqrLen=vec2.squaredLength=function(a){var x=a[0],y=a[1];return x*x+y*y};vec2.negate=function(out,a){out[0]=-a[0];out[1]=-a[1];return out};vec2.normalize=function(out,a){var x=a[0],y=a[1];var len=x*x+y*y;if(len>0){len=1/Math.sqrt(len);out[0]=a[0]*len;out[1]=a[1]*len}return out};vec2.dot=function(a,b){return a[0]*b[0]+a[1]*b[1]};vec2.cross=function(out,a,b){var z=a[0]*b[1]-a[1]*b[0];out[0]=out[1]=0;out[2]=z;return out};vec2.lerp=function(out,a,b,t){var ax=a[0],ay=a[1];out[0]=ax+t*(b[0]-ax);out[1]=ay+t*(b[1]-ay);return out};vec2.transformMat2=function(out,a,m){var x=a[0],y=a[1];out[0]=x*m[0]+y*m[1];out[1]=x*m[2]+y*m[3];return out};vec2.forEach=function(){var vec=new Float32Array(2);return function(a,stride,offset,count,fn,arg){var i,l;if(!stride){stride=2}if(!offset){offset=0}if(count){l=Math.min(count*stride+offset,a.length)}else{l=a.length}for(i=offset;i0){len=1/Math.sqrt(len);out[0]=a[0]*len;out[1]=a[1]*len;out[2]=a[2]*len}return out};vec3.dot=function(a,b){return a[0]*b[0]+a[1]*b[1]+a[2]*b[2]};vec3.cross=function(out,a,b){var ax=a[0],ay=a[1],az=a[2],bx=b[0],by=b[1],bz=b[2];out[0]=ay*bz-az*by;out[1]=az*bx-ax*bz;out[2]=ax*by-ay*bx;return out};vec3.lerp=function(out,a,b,t){var ax=a[0],ay=a[1],az=a[2];out[0]=ax+t*(b[0]-ax);out[1]=ay+t*(b[1]-ay);out[2]=az+t*(b[2]-az);return out};vec3.transformMat4=function(out,a,m){var x=a[0],y=a[1],z=a[2];out[0]=m[0]*x+m[4]*y+m[8]*z+m[12];out[1]=m[1]*x+m[5]*y+m[9]*z+m[13];out[2]=m[2]*x+m[6]*y+m[10]*z+m[14];return out};vec3.transformQuat=function(out,a,q){var x=a[0],y=a[1],z=a[2],qx=q[0],qy=q[1],qz=q[2],qw=q[3],ix=qw*x+qy*z-qz*y,iy=qw*y+qz*x-qx*z,iz=qw*z+qx*y-qy*x,iw=-qx*x-qy*y-qz*z;out[0]=ix*qw+iw*-qx+iy*-qz-iz*-qy;out[1]=iy*qw+iw*-qy+iz*-qx-ix*-qz;out[2]=iz*qw+iw*-qz+ix*-qy-iy*-qx;return out};vec3.forEach=function(){var vec=new Float32Array(3);return function(a,stride,offset,count,fn,arg){var i,l;if(!stride){stride=3}if(!offset){offset=0}if(count){l=Math.min(count*stride+offset,a.length)}else{l=a.length}for(i=offset;i0){len=1/Math.sqrt(len);out[0]=a[0]*len;out[1]=a[1]*len;out[2]=a[2]*len;out[3]=a[3]*len}return out};vec4.dot=function(a,b){return a[0]*b[0]+a[1]*b[1]+a[2]*b[2]+a[3]*b[3]};vec4.lerp=function(out,a,b,t){var ax=a[0],ay=a[1],az=a[2],aw=a[3];out[0]=ax+t*(b[0]-ax);out[1]=ay+t*(b[1]-ay);out[2]=az+t*(b[2]-az);out[3]=aw+t*(b[3]-aw);return out};vec4.transformMat4=function(out,a,m){var x=a[0],y=a[1],z=a[2],w=a[3];out[0]=m[0]*x+m[4]*y+m[8]*z+m[12]*w;out[1]=m[1]*x+m[5]*y+m[9]*z+m[13]*w;out[2]=m[2]*x+m[6]*y+m[10]*z+m[14]*w;out[3]=m[3]*x+m[7]*y+m[11]*z+m[15]*w;return out};vec4.transformQuat=function(out,a,q){var x=a[0],y=a[1],z=a[2],qx=q[0],qy=q[1],qz=q[2],qw=q[3],ix=qw*x+qy*z-qz*y,iy=qw*y+qz*x-qx*z,iz=qw*z+qx*y-qy*x,iw=-qx*x-qy*y-qz*z;out[0]=ix*qw+iw*-qx+iy*-qz-iz*-qy;out[1]=iy*qw+iw*-qy+iz*-qx-ix*-qz;out[2]=iz*qw+iw*-qz+ix*-qy-iy*-qx;return out};vec4.forEach=function(){var vec=new Float32Array(4);return function(a,stride,offset,count,fn,arg){var i,l;if(!stride){stride=4}if(!offset){offset=0}if(count){l=Math.min(count*stride+offset,a.length)}else{l=a.length}for(i=offset;i=1){if(out!==a){out[0]=ax;out[1]=ay;out[2]=az;out[3]=aw}return out}halfTheta=Math.acos(cosHalfTheta);sinHalfTheta=Math.sqrt(1-cosHalfTheta*cosHalfTheta);if(Math.abs(sinHalfTheta)<.001){out[0]=ax*.5+bx*.5;out[1]=ay*.5+by*.5;out[2]=az*.5+bz*.5;out[3]=aw*.5+bw*.5;return out}ratioA=Math.sin((1-t)*halfTheta)/sinHalfTheta;ratioB=Math.sin(t*halfTheta)/sinHalfTheta;out[0]=ax*ratioA+bx*ratioB;out[1]=ay*ratioA+by*ratioB;out[2]=az*ratioA+bz*ratioB;out[3]=aw*ratioA+bw*ratioB;return out};quat.invert=function(out,a){var a0=a[0],a1=a[1],a2=a[2],a3=a[3],dot=a0*a0+a1*a1+a2*a2+a3*a3,invDot=dot?1/dot:0;out[0]=-a0*invDot;out[1]=-a1*invDot;out[2]=-a2*invDot;out[3]=a3*invDot;return out};quat.conjugate=function(out,a){out[0]=-a[0];out[1]=-a[1];out[2]=-a[2];out[3]=a[3];return out};quat.len=quat.length=vec4.length;quat.sqrLen=quat.squaredLength=vec4.squaredLength;quat.normalize=vec4.normalize;quat.str=function(a){return"quat("+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+")"};if(typeof exports!=="undefined"){exports.quat=quat}}(shim.exports)}()}()},{}],20:[function(require,module,exports){!function(){!function(){var root=this;var previousUnderscore=root._;var breaker={};var ArrayProto=Array.prototype,ObjProto=Object.prototype,FuncProto=Function.prototype;var push=ArrayProto.push,slice=ArrayProto.slice,concat=ArrayProto.concat,toString=ObjProto.toString,hasOwnProperty=ObjProto.hasOwnProperty;var nativeForEach=ArrayProto.forEach,nativeMap=ArrayProto.map,nativeReduce=ArrayProto.reduce,nativeReduceRight=ArrayProto.reduceRight,nativeFilter=ArrayProto.filter,nativeEvery=ArrayProto.every,nativeSome=ArrayProto.some,nativeIndexOf=ArrayProto.indexOf,nativeLastIndexOf=ArrayProto.lastIndexOf,nativeIsArray=Array.isArray,nativeKeys=Object.keys,nativeBind=FuncProto.bind;var _=function(obj){if(obj instanceof _)return obj;if(!(this instanceof _))return new _(obj);this._wrapped=obj};if(typeof exports!=="undefined"){if(typeof module!=="undefined"&&module.exports){exports=module.exports=_}exports._=_}else{root._=_}_.VERSION="1.4.4";var each=_.each=_.forEach=function(obj,iterator,context){if(obj==null)return;if(nativeForEach&&obj.forEach===nativeForEach){obj.forEach(iterator,context)}else if(obj.length===+obj.length){for(var i=0,l=obj.length;i2;if(obj==null)obj=[];if(nativeReduce&&obj.reduce===nativeReduce){if(context)iterator=_.bind(iterator,context);return initial?obj.reduce(iterator,memo):obj.reduce(iterator)}each(obj,function(value,index,list){if(!initial){memo=value;initial=true}else{memo=iterator.call(context,memo,value,index,list)}});if(!initial)throw new TypeError(reduceError);return memo};_.reduceRight=_.foldr=function(obj,iterator,memo,context){var 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this._chain?_(obj).chain():obj};_.mixin(_);each(["pop","push","reverse","shift","sort","splice","unshift"],function(name){var method=ArrayProto[name];_.prototype[name]=function(){var obj=this._wrapped;method.apply(obj,arguments);if((name=="shift"||name=="splice")&&obj.length===0)delete obj[0];return result.call(this,obj)}});each(["concat","join","slice"],function(name){var method=ArrayProto[name];_.prototype[name]=function(){return result.call(this,method.apply(this._wrapped,arguments))}});_.extend(_.prototype,{chain:function(){this._chain=true;return this},value:function(){return this._wrapped}})}.call(this)}()},{}],21:[function(require,module,exports){window.requestAnimFrame=function(){return window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.oRequestAnimationFrame||window.msRequestAnimationFrame||function(callback){window.setTimeout(callback,1e3/60)}}();Leap=require("../lib/index")},{"../lib/index":8}]},{},[21]); + +/* + * Leap Motion integration for Reveal.js. + * James Sun [sun16] + * Rory Hardy [gneatgeek] + */ + +(function () { + var body = document.body, + controller = new Leap.Controller({ enableGestures: true }), + lastGesture = 0, + leapConfig = Reveal.getConfig().leap, + pointer = document.createElement( 'div' ), + config = { + autoCenter : true, // Center pointer around detected position. + gestureDelay : 500, // How long to delay between gestures. + naturalSwipe : true, // Swipe as if it were a touch screen. + pointerColor : '#00aaff', // Default color of the pointer. + pointerOpacity : 0.7, // Default opacity of the pointer. + pointerSize : 15, // Default minimum height/width of the pointer. + pointerTolerance : 120 // Bigger = slower pointer. + }, + entered, enteredPosition, now, size, tipPosition; // Other vars we need later, but don't need to redeclare. + + // Merge user defined settings with defaults + if( leapConfig ) { + for( key in leapConfig ) { + config[key] = leapConfig[key]; + } + } + + pointer.id = 'leap'; + + pointer.style.opacity = config.pointerOpacity; + pointer.style.backgroundColor = config.pointerColor; + + body.appendChild( pointer ); + + // Leap's loop + controller.on( 'frame', function ( frame ) { + // Timing code to rate limit gesture execution + now = new Date().getTime(); + + // Pointer: 1 to 2 fingers. Strictly one finger works but may cause innaccuracies. + // The innaccuracies were observed on a development model and may not be an issue with consumer models. + if( frame.fingers.length > 0 && frame.fingers.length < 3 ) { + // Invert direction and multiply by 3 for greater effect. + size = -3 * frame.fingers[0].tipPosition[2]; + + if( size < config.pointerSize ) { + size = config.pointerSize; + } + + pointer.style.width = size + 'px'; + pointer.style.height = size + 'px'; + pointer.style.borderRadius = size - 5 + 'px'; + pointer.style.visibility = 'visible'; + + if( config.autoCenter ) { + tipPosition = frame.fingers[0].tipPosition; + + // Check whether the finger has entered the z range of the Leap Motion. Used for the autoCenter option. + if( !entered ) { + entered = true; + enteredPosition = frame.fingers[0].tipPosition; + } + + pointer.style.top = + (-1 * (( tipPosition[1] - enteredPosition[1] ) * body.offsetHeight / config.pointerTolerance )) + + ( body.offsetHeight / 2 ) + 'px'; + + pointer.style.left = + (( tipPosition[0] - enteredPosition[0] ) * body.offsetWidth / config.pointerTolerance ) + + ( body.offsetWidth / 2 ) + 'px'; + } + else { + pointer.style.top = ( 1 - (( tipPosition[1] - 50) / config.pointerTolerance )) * + body.offsetHeight + 'px'; + + pointer.style.left = ( tipPosition[0] * body.offsetWidth / config.pointerTolerance ) + + ( body.offsetWidth / 2 ) + 'px'; + } + } + else { + // Hide pointer on exit + entered = false; + pointer.style.visibility = 'hidden'; + } + + // Gestures + if( frame.gestures.length > 0 && (now - lastGesture) > config.gestureDelay ) { + var gesture = frame.gestures[0]; + + // One hand gestures + if( frame.hands.length === 1 ) { + // Swipe gestures. 3+ fingers. + if( frame.fingers.length > 2 && gesture.type === 'swipe' ) { + // Define here since some gestures will throw undefined for these. + var x = gesture.direction[0], + y = gesture.direction[1]; + + // Left/right swipe gestures + if( Math.abs( x ) > Math.abs( y )) { + if( x > 0 ) { + config.naturalSwipe ? Reveal.left() : Reveal.right(); + } + else { + config.naturalSwipe ? Reveal.right() : Reveal.left(); + } + } + // Up/down swipe gestures + else { + if( y > 0 ) { + config.naturalSwipe ? Reveal.down() : Reveal.up(); + } + else { + config.naturalSwipe ? Reveal.up() : Reveal.down(); + } + } + + lastGesture = now; + } + } + // Two hand gestures + else if( frame.hands.length === 2 ) { + // Upward two hand swipe gesture + if( gesture.direction[1] > 0 && gesture.type === 'swipe' ) { + Reveal.toggleOverview(); + } + + lastGesture = now; + } + } + }); + + controller.connect(); +})();