Simple Hodl Address

index.html

@@ -12,10 +12,15 @@
 		<meta name="viewport" content="width=device-width, initial-scale=1.0">
 
 		<link rel="stylesheet" href="css/bootstrap.min.css" media="screen">
+        <link rel="stylesheet" href="css/bootstrap-datetimepicker.min.css">
 		<link rel="stylesheet" href="css/style.css" media="screen">
 		
 		<script type="text/javascript" src="js/jquery-1.9.1.min.js"></script>
+        <script type="text/javascript" src="js/moment.min.js"></script>
+        <script type="text/javascript" src="js/transition.js"></script>
+        <script type="text/javascript" src="js/collapse.js"></script>
 		<script type="text/javascript" src="js/bootstrap.min.js"></script>
+        <script type="text/javascript" src="js/bootstrap-datetimepicker.min.js"></script>
 
 		<script type="text/javascript" src="js/crypto-min.js"></script>
 		<script type="text/javascript" src="js/crypto-sha256.js"></script>
@@ -54,6 +59,7 @@
 								<ul class="dropdown-menu">
 									<li><a href="#newAddress" data-toggle="tab">New Address</a></li>
 									<li><a href="#newMultiSig" data-toggle="tab">MultiSig Address</a></li>
+                                    <li><a href="#newTimeLocked" data-toggle="tab">New Time Locked Address</a></li>
 									<li><a href="#newHDaddress" data-toggle="tab">HD Address</a></li>
 									<li class="divider"></li>
 									<li><a href="#newTransaction" data-toggle="tab">Transaction</a></li>
@@ -377,6 +383,73 @@
 						<br>
 					</div>
 
+                    <div class="tab-pane tab-content" id="newTimeLocked">
+                        <h2>New Time Locked Address <small>Coins can be released only after a certain date</small></h2>
+
+                        <div class="row">
+
+                            <div class="col-md-11">
+                                <p>Public keys can be <a href="#newAddress">generated in your browser</a> or from your bitcoin client</a>.</p>
+                                <p>Enter the public key that will be able to unlock the funds after the a certain date.
+                            </div>
+
+                            <div class="col-md-1">
+                            </div>
+                        </div>
+
+                        <div class="row">
+                            <div class="form-horizontal">
+                                <div class="col-xs-11">
+                                    <input id="timeLockedPubKey" type="text" class="form-control pubkey">
+                                </div>
+                            </div>
+                        </div>
+
+                        <p>Enter the date and time required to release the coins</p>
+                        <div class="row">
+                            <div class='col-xs-3'>
+                                <div class="form-group">
+                                    <div class='input-group date' id='timeLockedDateTimePicker'>
+                                        <input type='text' class="form-control" />
+                                        <span class="input-group-addon">
+                                            <span class="glyphicon glyphicon-calendar"></span>
+                                        </span>
+                                    </div>
+                                </div>
+                            </div>
+                            <div class='col-xs-3'>
+                                <small>System Local Time</small>
+                            </div>
+                        </div>
+
+                        <br>
+
+                        <div id="timeLockedErrorMsg" class="alert alert-danger" style="display:none;"></div>
+
+                        <div class="alert alert-success hidden" id="timeLockedData">
+                            <label>Address</label>
+                            <p>Payment should be made to this address:</p>
+                            <div class="row">
+                                <div class="col-lg-6">
+                                    <div class="input-group">
+                                        <input type="text" class="form-control address" value="" readonly>
+                                        <span class="input-group-btn">
+                                            <button class="qrcodeBtn btn btn-default" type="button" data-toggle="modal" data-target="#modalQrcode"><span class="glyphicon glyphicon-qrcode"></span></button>
+                                        </span>
+                                    </div>
+                                </div>
+                            </div>
+                            <label>Redeem Script</label>
+                            <p>This script should be <i>saved and should be shared with all the participants before a payment is made</i>, so they may validate the authenticity of the address, it will also be used later to release the bitcoins.</p>
+                            <textarea class="form-control script" style="height:160px" readonly></textarea>
+                            <label>Shareable URL</label>
+                            <input type="text" class="scriptUrl form-control" readonly>
+                        </div>
+
+                        <input type="button" class="btn btn-primary" value="Submit" id="newTimeLockedAddress">
+                        <br>
+                    </div>
+
 					<div class="tab-pane tab-content" id="newHDaddress">
 						<h2>New HD Address <small>making bip32 even easier</small></h2>
 						<p>Use the form below to generate a <i>master</i> hierarchical deterministic address.</p>
@@ -585,24 +658,64 @@
 						<div class="hidden verifyData" id="verifyRsData">
 							<h4>Redeem Script</h4>
 							<p><span style="float:right"><a href="javascript:;" target="_blank" class="verifyLink" title="Link to this page"><span class="glyphicon glyphicon-link"></span></a></span>The above redeem script has been decoded</p>
-							<label>Multi Signature Address</label>
-							<div class="row">
-								<div class="col-lg-6">
-									<div class="input-group">
-										<input type="text" class="form-control address multisigAddress" value="" readonly>
-										<span class="input-group-btn">
-											<button class="qrcodeBtn btn btn-default" type="button" data-toggle="modal" data-target="#modalQrcode"><span class="glyphicon glyphicon-qrcode"></span></button>
-										</span>
-									</div>
-								</div>
-							</div>
-							<label>Required Signatures</label>
-							<p class="signaturesRequired">?</p>
-							<label>Signatures Required from</label>
-							<table class="table table-striped table-hover">
-								<tbody>
-								</tbody>
-							</table>
+
+							<div class="hidden" id="verifyRsDataMultisig">
+                                <label>Multi Signature Address</label>
+    							<div class="row">
+    								<div class="col-lg-6">
+    									<div class="input-group">
+    										<input type="text" class="form-control address multisigAddress" value="" readonly>
+    										<span class="input-group-btn">
+    											<button class="qrcodeBtn btn btn-default" type="button" data-toggle="modal" data-target="#modalQrcode"><span class="glyphicon glyphicon-qrcode"></span></button>
+    										</span>
+    									</div>
+    								</div>
+    							</div>
+    							<label>Required Signatures</label>
+    							<p class="signaturesRequired">?</p>
+    							<label>Signatures Required from</label>
+    							<table class="table table-striped table-hover">
+    								<tbody>
+    								</tbody>
+    							</table>
+                            </div>
+
+                            <div class="hidden" id="verifyRsDataHodl">
+                                <label>Hodl Address</label>
+                                <div class="row">
+                                    <div class="col-lg-6">
+                                        <div class="input-group">
+                                            <input type="text" class="form-control address" value="" readonly>
+                                            <span class="input-group-btn">
+                                                <button class="qrcodeBtn btn btn-default" type="button" data-toggle="modal" data-target="#modalQrcode"><span class="glyphicon glyphicon-qrcode"></span></button>
+                                            </span>
+                                        </div>
+                                    </div>
+                                </div>
+
+                                <label>Required Signature</label>
+                                <div class="row">
+                                    <div class="col-lg-6">
+                                        <div class="input-group">
+                                            <input type="text" class="form-control pubkey" value="" readonly>
+                                            <span class="input-group-btn">
+                                                <button class="qrcodeBtn btn btn-default" type="button" data-toggle="modal" data-target="#modalQrcode"><span class="glyphicon glyphicon-qrcode"></span></button>
+                                            </span>
+                                        </div>
+                                    </div>
+                                </div>
+
+                                <label>Unlock Time</label>
+                                <div class="row">
+                                    <div class='col-lg-6'>
+                                        <div class="input-group">
+                                            <input type="text" class="form-control date" value="" readonly>
+                                        </div>
+                                    </div>
+                                </div>
+
+                                <br>
+                            </div>
 						</div>
 
 						<div class="hidden verifyData" id="verifyTransactionData">

js/coin.js

@@ -135,6 +135,36 @@
 		return {'address':address, 'redeemScript':redeemScript};
 	}
 
+	/* new time locked address, provide the pubkey and time necessary to unlock the funds.
+	   when time is greater than 500000000, it should be a unix timestamp (seconds since epoch),
+	   otherwise it should be the block height required before this transaction can be released. 
+
+	   may throw a string on failure!
+	*/
+	coinjs.simpleHodlAddress = function(pubkey, locktime) {
+
+		if(locktime < 0) {
+			throw "Locktime is negative.";
+		}
+
+		var s = coinjs.script();
+		s.writeBytes(Crypto.util.hexToBytes(locktime.toString(16)));
+		s.writeOp(177);//OP_CHECKLOCKTIMEVERIFY
+		s.writeOp(117);//OP_DROP
+		s.writeBytes(Crypto.util.hexToBytes(pubkey));
+		s.writeOp(172);//OP_CHECKSIG
+
+		var x = ripemd160(Crypto.SHA256(s.buffer, {asBytes: true}), {asBytes: true});
+		x.unshift(coinjs.multisig);
+		var r = x;
+		r = Crypto.SHA256(Crypto.SHA256(r, {asBytes: true}), {asBytes: true});
+		var checksum = r.slice(0,4);
+		var redeemScript = Crypto.util.bytesToHex(s.buffer);
+		var address = coinjs.base58encode(x.concat(checksum));
+
+		return {'address':address, 'redeemScript':redeemScript};
+	}
+
 	/* provide a privkey and return an WIF  */
 	coinjs.privkey2wif = function(h){
 		var r = Crypto.util.hexToBytes(h);
@@ -649,6 +679,14 @@
 					r.pubkeys = pubkeys;
 					var multi = coinjs.pubkeys2MultisigAddress(pubkeys, r.signaturesRequired);
 					r.address = multi['address'];
+					r.type = 'multisig__'; // using __ for now to differentiat from the other object .type == "multisig"
+				} else if(s.chunks.length == 5 && s.chunks[1] == 177 && s.chunks[2] == 117 && s.chunks[4] == 172){
+					// ^ <locktime> OP_CHECKLOCKTIMEVERIFY OP_DROP <pubkey> OP_CHECKSIG ^
+					r = {}
+					r.pubkey = Crypto.util.bytesToHex(s.chunks[3]);
+					r.locktime = parseInt(Crypto.util.bytesToHex(s.chunks[0]), 16); // TODO is this endian safe?
+					r.address = coinjs.simpleHodlAddress(r.pubkey, r.locktime).address;
+					r.type = "hodl__";
 				}
 			} catch(e) {
 				// console.log(e);
@@ -898,9 +936,15 @@
 				if((this.ins[index].script.chunks.length==5) && this.ins[index].script.chunks[4]==172 && coinjs.isArray(this.ins[index].script.chunks[2])){ //OP_CHECKSIG
 					// regular scriptPubkey (not signed)
 					return {'type':'scriptpubkey', 'signed':'false', 'signatures':0, 'script': Crypto.util.bytesToHex(this.ins[index].script.buffer)};
+				} else if((this.ins[index].script.chunks.length==2) && this.ins[index].script.chunks[0][0]==48 && this.ins[index].script.chunks[1].length == 5 && this.ins[index].script.chunks[1][1]==177){//OP_CHECKLOCKTIMEVERIFY
+					// hodl script (signed)
+					return {'type':'hodl', 'signed':'true', 'signatures':1, 'script': Crypto.util.bytesToHex(this.ins[index].script.buffer)};
 				} else if((this.ins[index].script.chunks.length==2) && this.ins[index].script.chunks[0][0]==48){ 
 					// regular scriptPubkey (probably signed)
 					return {'type':'scriptpubkey', 'signed':'true', 'signatures':1, 'script': Crypto.util.bytesToHex(this.ins[index].script.buffer)};
+				} else if(this.ins[index].script.chunks.length == 5 && this.ins[index].script.chunks[1] == 177){//OP_CHECKLOCKTIMEVERIFY
+					// hodl script (not signed)
+					return {'type':'hodl', 'signed':'false', 'signatures': 0, 'script': Crypto.util.bytesToHex(this.ins[index].script.buffer)};
 				} else if (this.ins[index].script.chunks[0]==0 && this.ins[index].script.chunks[this.ins[index].script.chunks.length-1][this.ins[index].script.chunks[this.ins[index].script.chunks.length-1].length-1]==174) { // OP_CHECKMULTISIG
 					// multisig script, with signature(s) included
 					return {'type':'multisig', 'signed':'true', 'signatures':this.ins[index].script.chunks.length-2, 'script': Crypto.util.bytesToHex(this.ins[index].script.chunks[this.ins[index].script.chunks.length-1])};
@@ -1048,6 +1092,17 @@
 			this.ins[index].script = s;
 			return true;
 		}
+
+		/* signs a time locked / hodl input */
+		r.signhodl = function(index, wif){
+			var signature = this.transactionSig(index, wif);
+			var redeemScript = this.ins[index].script.buffer
+			var s = coinjs.script();
+			s.writeBytes(Crypto.util.hexToBytes(signature));
+			s.writeBytes(redeemScript);
+			this.ins[index].script = s;
+			return true;
+		}
 		
 		/* sign a multisig input */
 		r.signmultisig = function(index, wif){
@@ -1111,6 +1166,8 @@
 
 				if(((d['type'] == 'scriptpubkey' && d['script']==Crypto.util.bytesToHex(pubkeyHash.buffer)) || d['type'] == 'empty') && d['signed'] == "false"){
 					this.signinput(i, wif);
+				} else if (d['type'] == 'hodl' && d['signed'] == "false") {
+					this.signhodl(i, wif);
 				} else if (d['type'] == 'multisig') {
 					this.signmultisig(i, wif);
 				} else {

js/coinbin.js

@@ -360,6 +360,43 @@ $(document).ready(function() {
 		}
 	});
 
+	/* new -> time locked code */
+
+	$('#timeLockedDateTimePicker').datetimepicker({
+		format: "MM/DD/YYYY HH:mm",
+	});
+	
+    $("#newTimeLockedAddress").click(function(){
+
+        $("#timeLockedData").removeClass('show').addClass('hidden').fadeOut();
+        $("#timeLockedPubKey").parent().removeClass('has-error');
+        $("#timeLockedDateTimePicker").parent().removeClass('has-error');
+        $("#timeLockedErrorMsg").hide();
+
+        if(!coinjs.pubkeydecompress($("#timeLockedPubKey").val())) {
+        	$('#timeLockedPubKey').parent().addClass('has-error');
+        }
+
+        var date = $('#timeLockedDateTimePicker').data("DateTimePicker").date();
+        if(!date || !date.isValid()) {
+        	$('#timeLockedDateTimePicker').parent().addClass('has-error');
+        }
+
+        if(($("#timeLockedPubKey").parent().hasClass('has-error')==false) && $("#timeLockedDateTimePicker").parent().hasClass('has-error')==false){
+        	try {
+	            var hodl = coinjs.simpleHodlAddress($("#timeLockedPubKey").val(), date.unix());
+	            $("#timeLockedData .address").val(hodl['address']);
+	            $("#timeLockedData .script").val(hodl['redeemScript']);
+	            $("#timeLockedData .scriptUrl").val(document.location.origin+''+document.location.pathname+'?verify='+hodl['redeemScript']+'#verify');
+	            $("#timeLockedData").removeClass('hidden').addClass('show').fadeIn();
+	        } catch(e) {
+	        	$("#timeLockedErrorMsg").html('<span class="glyphicon glyphicon-exclamation-sign"></span> ' + e).fadeIn();
+	        }
+        } else {
+            $("#timeLockedErrorMsg").html('<span class="glyphicon glyphicon-exclamation-sign"></span> Public key and/or date is invalid!').fadeIn();
+        }
+    });
+
 	/* new -> Hd address code */
 
 	$(".deriveHDbtn").click(function(){
@@ -941,20 +978,34 @@ $(document).ready(function() {
 		var script = coinjs.script();
 		var decode = script.decodeRedeemScript($("#verifyScript").val());
 		if(decode){
-			$("#verifyRsData .multisigAddress").val(decode['address']);
-			$("#verifyRsData .signaturesRequired").html(decode['signaturesRequired']);
-			$("#verifyRsData table tbody").html("");
-			for(var i=0;i<decode.pubkeys.length;i++){
-				var pubkey = decode.pubkeys[i];
-				var address = coinjs.pubkey2address(pubkey);
-				$('<tr><td width="30%"><input type="text" class="form-control" value="'+address+'" readonly></td><td><input type="text" class="form-control" value="'+pubkey+'" readonly></td></tr>').appendTo("#verifyRsData table tbody");
+			$("#verifyRsDataMultisig").addClass('hidden');
+			$("#verifyRsDataHodl").addClass('hidden');
+
+			if(decode.type == "multisig__") {
+				$("#verifyRsDataMultisig .multisigAddress").val(decode['address']);
+				$("#verifyRsDataMultisig .signaturesRequired").html(decode['signaturesRequired']);
+				$("#verifyRsDataMultisig table tbody").html("");
+				for(var i=0;i<decode.pubkeys.length;i++){
+					var pubkey = decode.pubkeys[i];
+					var address = coinjs.pubkey2address(pubkey);
+					$('<tr><td width="30%"><input type="text" class="form-control" value="'+address+'" readonly></td><td><input type="text" class="form-control" value="'+pubkey+'" readonly></td></tr>').appendTo("#verifyRsDataMultisig table tbody");
+				}
+				$("#verifyRsData").removeClass("hidden");
+				$("#verifyRsDataMultisig").removeClass('hidden');
+				$(".verifyLink").attr('href','?verify='+$("#verifyScript").val());
+				return true;
+			} else if(decode.type == "hodl__") {
+				var d = $("#verifyRsDataHodl .date").data("DateTimePicker");
+				$("#verifyRsDataHodl .address").val(decode['address']);
+				$("#verifyRsDataHodl .pubkey").val(coinjs.pubkey2address(decode['pubkey']));
+				$("#verifyRsDataHodl .date").val(decode['locktime'] >= 500000000? moment.unix(decode['locktime']).format("MM/DD/YYYY HH:mm") : decode['locktime']);
+				$("#verifyRsData").removeClass("hidden");
+				$("#verifyRsDataHodl").removeClass('hidden');
+				$(".verifyLink").attr('href','?verify='+$("#verifyScript").val());
+				return true;
 			}
-			$("#verifyRsData").removeClass("hidden");
-			$(".verifyLink").attr('href','?verify='+$("#verifyScript").val());
-			return true;
-		} else {
-			return false;
 		}
+		return false;
 	}
 
 	function decodeTransactionScript(){

js/collapse.js

@@ -0,0 +1,211 @@
+/* ========================================================================
+ * Bootstrap: collapse.js v3.3.4
+ * http://getbootstrap.com/javascript/#collapse
+ * ========================================================================
+ * Copyright 2011-2015 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+  'use strict';
+
+  // COLLAPSE PUBLIC CLASS DEFINITION
+  // ================================
+
+  var Collapse = function (element, options) {
+    this.$element      = $(element)
+    this.options       = $.extend({}, Collapse.DEFAULTS, options)
+    this.$trigger      = $('[data-toggle="collapse"][href="#' + element.id + '"],' +
+                           '[data-toggle="collapse"][data-target="#' + element.id + '"]')
+    this.transitioning = null
+
+    if (this.options.parent) {
+      this.$parent = this.getParent()
+    } else {
+      this.addAriaAndCollapsedClass(this.$element, this.$trigger)
+    }
+
+    if (this.options.toggle) this.toggle()
+  }
+
+  Collapse.VERSION  = '3.3.4'
+
+  Collapse.TRANSITION_DURATION = 350
+
+  Collapse.DEFAULTS = {
+    toggle: true
+  }
+
+  Collapse.prototype.dimension = function () {
+    var hasWidth = this.$element.hasClass('width')
+    return hasWidth ? 'width' : 'height'
+  }
+
+  Collapse.prototype.show = function () {
+    if (this.transitioning || this.$element.hasClass('in')) return
+
+    var activesData
+    var actives = this.$parent && this.$parent.children('.panel').children('.in, .collapsing')
+
+    if (actives && actives.length) {
+      activesData = actives.data('bs.collapse')
+      if (activesData && activesData.transitioning) return
+    }
+
+    var startEvent = $.Event('show.bs.collapse')
+    this.$element.trigger(startEvent)
+    if (startEvent.isDefaultPrevented()) return
+
+    if (actives && actives.length) {
+      Plugin.call(actives, 'hide')
+      activesData || actives.data('bs.collapse', null)
+    }
+
+    var dimension = this.dimension()
+
+    this.$element
+      .removeClass('collapse')
+      .addClass('collapsing')[dimension](0)
+      .attr('aria-expanded', true)
+
+    this.$trigger
+      .removeClass('collapsed')
+      .attr('aria-expanded', true)
+
+    this.transitioning = 1
+
+    var complete = function () {
+      this.$element
+        .removeClass('collapsing')
+        .addClass('collapse in')[dimension]('')
+      this.transitioning = 0
+      this.$element
+        .trigger('shown.bs.collapse')
+    }
+
+    if (!$.support.transition) return complete.call(this)
+
+    var scrollSize = $.camelCase(['scroll', dimension].join('-'))
+
+    this.$element
+      .one('bsTransitionEnd', $.proxy(complete, this))
+      .emulateTransitionEnd(Collapse.TRANSITION_DURATION)[dimension](this.$element[0][scrollSize])
+  }
+
+  Collapse.prototype.hide = function () {
+    if (this.transitioning || !this.$element.hasClass('in')) return
+
+    var startEvent = $.Event('hide.bs.collapse')
+    this.$element.trigger(startEvent)
+    if (startEvent.isDefaultPrevented()) return
+
+    var dimension = this.dimension()
+
+    this.$element[dimension](this.$element[dimension]())[0].offsetHeight
+
+    this.$element
+      .addClass('collapsing')
+      .removeClass('collapse in')
+      .attr('aria-expanded', false)
+
+    this.$trigger
+      .addClass('collapsed')
+      .attr('aria-expanded', false)
+
+    this.transitioning = 1
+
+    var complete = function () {
+      this.transitioning = 0
+      this.$element
+        .removeClass('collapsing')
+        .addClass('collapse')
+        .trigger('hidden.bs.collapse')
+    }
+
+    if (!$.support.transition) return complete.call(this)
+
+    this.$element
+      [dimension](0)
+      .one('bsTransitionEnd', $.proxy(complete, this))
+      .emulateTransitionEnd(Collapse.TRANSITION_DURATION)
+  }
+
+  Collapse.prototype.toggle = function () {
+    this[this.$element.hasClass('in') ? 'hide' : 'show']()
+  }
+
+  Collapse.prototype.getParent = function () {
+    return $(this.options.parent)
+      .find('[data-toggle="collapse"][data-parent="' + this.options.parent + '"]')
+      .each($.proxy(function (i, element) {
+        var $element = $(element)
+        this.addAriaAndCollapsedClass(getTargetFromTrigger($element), $element)
+      }, this))
+      .end()
+  }
+
+  Collapse.prototype.addAriaAndCollapsedClass = function ($element, $trigger) {
+    var isOpen = $element.hasClass('in')
+
+    $element.attr('aria-expanded', isOpen)
+    $trigger
+      .toggleClass('collapsed', !isOpen)
+      .attr('aria-expanded', isOpen)
+  }
+
+  function getTargetFromTrigger($trigger) {
+    var href
+    var target = $trigger.attr('data-target')
+      || (href = $trigger.attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '') // strip for ie7
+
+    return $(target)
+  }
+
+
+  // COLLAPSE PLUGIN DEFINITION
+  // ==========================
+
+  function Plugin(option) {
+    return this.each(function () {
+      var $this   = $(this)
+      var data    = $this.data('bs.collapse')
+      var options = $.extend({}, Collapse.DEFAULTS, $this.data(), typeof option == 'object' && option)
+
+      if (!data && options.toggle && /show|hide/.test(option)) options.toggle = false
+      if (!data) $this.data('bs.collapse', (data = new Collapse(this, options)))
+      if (typeof option == 'string') data[option]()
+    })
+  }
+
+  var old = $.fn.collapse
+
+  $.fn.collapse             = Plugin
+  $.fn.collapse.Constructor = Collapse
+
+
+  // COLLAPSE NO CONFLICT
+  // ====================
+
+  $.fn.collapse.noConflict = function () {
+    $.fn.collapse = old
+    return this
+  }
+
+
+  // COLLAPSE DATA-API
+  // =================
+
+  $(document).on('click.bs.collapse.data-api', '[data-toggle="collapse"]', function (e) {
+    var $this   = $(this)
+
+    if (!$this.attr('data-target')) e.preventDefault()
+
+    var $target = getTargetFromTrigger($this)
+    var data    = $target.data('bs.collapse')
+    var option  = data ? 'toggle' : $this.data()
+
+    Plugin.call($target, option)
+  })
+
+}(jQuery);

js/transition.js

@@ -0,0 +1,59 @@
+/* ========================================================================
+ * Bootstrap: transition.js v3.3.4
+ * http://getbootstrap.com/javascript/#transitions
+ * ========================================================================
+ * Copyright 2011-2015 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+  'use strict';
+
+  // CSS TRANSITION SUPPORT (Shoutout: http://www.modernizr.com/)
+  // ============================================================
+
+  function transitionEnd() {
+    var el = document.createElement('bootstrap')
+
+    var transEndEventNames = {
+      WebkitTransition : 'webkitTransitionEnd',
+      MozTransition    : 'transitionend',
+      OTransition      : 'oTransitionEnd otransitionend',
+      transition       : 'transitionend'
+    }
+
+    for (var name in transEndEventNames) {
+      if (el.style[name] !== undefined) {
+        return { end: transEndEventNames[name] }
+      }
+    }
+
+    return false // explicit for ie8 (  ._.)
+  }
+
+  // http://blog.alexmaccaw.com/css-transitions
+  $.fn.emulateTransitionEnd = function (duration) {
+    var called = false
+    var $el = this
+    $(this).one('bsTransitionEnd', function () { called = true })
+    var callback = function () { if (!called) $($el).trigger($.support.transition.end) }
+    setTimeout(callback, duration)
+    return this
+  }
+
+  $(function () {
+    $.support.transition = transitionEnd()
+
+    if (!$.support.transition) return
+
+    $.event.special.bsTransitionEnd = {
+      bindType: $.support.transition.end,
+      delegateType: $.support.transition.end,
+      handle: function (e) {
+        if ($(e.target).is(this)) return e.handleObj.handler.apply(this, arguments)
+      }
+    }
+  })
+
+}(jQuery);