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sir-trevor.js
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/*!
* Sir Trevor JS v0.3.2
*
* Released under the MIT license
* www.opensource.org/licenses/MIT
*
* 2014-03-22
*/
(function ($, _){
var root = this,
SirTrevor;
SirTrevor = root.SirTrevor = {};
SirTrevor.DEBUG = false;
SirTrevor.SKIP_VALIDATION = false;
SirTrevor.version = "0.3.0";
SirTrevor.LANGUAGE = "en";
function $element(el) {
return el instanceof $ ? el : $(el);
}
/*
Define default attributes that can be extended through an object passed to the
initialize function of SirTrevor
*/
SirTrevor.DEFAULTS = {
defaultType: false,
spinner: {
className: 'st-spinner',
lines: 9,
length: 8,
width: 3,
radius: 6,
color: '#000',
speed: 1.4,
trail: 57,
shadow: false,
left: '50%',
top: '50%'
},
blockLimit: 0,
blockTypeLimits: {},
required: [],
uploadUrl: '/attachments',
baseImageUrl: '/sir-trevor-uploads/',
errorsContainer: undefined,
toMarkdown: {
aggresiveHTMLStrip: false
}
};
SirTrevor.BlockMixins = {};
SirTrevor.Blocks = {};
SirTrevor.Formatters = {};
SirTrevor.instances = [];
SirTrevor.Events = Eventable;
var formBound = false; // Flag to tell us once we've bound our submit event
/* Generic function binding utility, used by lots of our classes */
var FunctionBind = {
bound: [],
_bindFunctions: function(){
if (this.bound.length > 0) {
_.bindAll.apply(null, _.union([this], this.bound));
}
}
};
var Renderable = {
tagName: 'div',
className: 'sir-trevor__view',
attributes: {},
$: function(selector) {
return this.$el.find(selector);
},
render: function() {
return this;
},
destroy: function() {
if (!_.isUndefined(this.stopListening)) { this.stopListening(); }
this.$el.remove();
},
_ensureElement: function() {
if (!this.el) {
var attrs = _.extend({}, _.result(this, 'attributes')),
html;
if (this.id) { attrs.id = this.id; }
if (this.className) { attrs['class'] = this.className; }
if (attrs.html) {
html = attrs.html;
delete attrs.html;
}
var $el = $('<' + this.tagName + '>').attr(attrs);
if (html) { $el.html(html); }
this._setElement($el);
} else {
this._setElement(this.el);
}
},
_setElement: function(element) {
this.$el = $element(element);
this.el = this.$el[0];
return this;
}
};
function diffText(before, after) {
var pos1 = -1,
pos2 = -1,
after_len = after.length,
before_len = before.length;
for (var i = 0; i < after_len; i++) {
if (pos1 == -1 && before.substr(i, 1) != after.substr(i, 1)) {
pos1 = i - 1;
}
if (pos2 == -1 &&
before.substr(before_len - i - 1, 1) !=
after.substr(after_len - i - 1, 1)
) {
pos2 = i;
}
}
return {
result: after.substr(pos1, after_len - pos2 - pos1 + 1),
pos1: pos1,
pos2: pos2
};
}
/*
Drop Area Plugin from @maccman
http://blog.alexmaccaw.com/svbtle-image-uploading
--
Tweaked so we use the parent class of dropzone
*/
(function($){
function dragEnter(e) {
e.preventDefault();
}
function dragOver(e) {
e.originalEvent.dataTransfer.dropEffect = "copy";
$(e.currentTarget).addClass('st-drag-over');
e.preventDefault();
}
function dragLeave(e) {
$(e.currentTarget).removeClass('st-drag-over');
e.preventDefault();
}
$.fn.dropArea = function(){
this.bind("dragenter", dragEnter).
bind("dragover", dragOver).
bind("dragleave", dragLeave);
return this;
};
$.fn.noDropArea = function(){
this.unbind("dragenter").
unbind("dragover").
unbind("dragleave");
return this;
};
$.fn.caretToEnd = function(){
var range,selection;
range = document.createRange();
range.selectNodeContents(this[0]);
range.collapse(false);
selection = window.getSelection();
selection.removeAllRanges();
selection.addRange(range);
return this;
};
})(jQuery);
/*
Backbone Inheritence
--
From: https://github.com/documentcloud/backbone/blob/master/backbone.js
Backbone.js 0.9.2
(c) 2010-2012 Jeremy Ashkenas, DocumentCloud Inc.
*/
var extend = function(protoProps, staticProps) {
var parent = this;
var child;
// The constructor function for the new subclass is either defined by you
// (the "constructor" property in your `extend` definition), or defaulted
// by us to simply call the parent's constructor.
if (protoProps && _.has(protoProps, 'constructor')) {
child = protoProps.constructor;
} else {
child = function(){ return parent.apply(this, arguments); };
}
// Add static properties to the constructor function, if supplied.
_.extend(child, parent, staticProps);
// Set the prototype chain to inherit from `parent`, without calling
// `parent`'s constructor function.
var Surrogate = function(){ this.constructor = child; };
Surrogate.prototype = parent.prototype;
child.prototype = new Surrogate;
// Add prototype properties (instance properties) to the subclass,
// if supplied.
if (protoProps) _.extend(child.prototype, protoProps);
// Set a convenience property in case the parent's prototype is needed
// later.
child.__super__ = parent.prototype;
return child;
};
/*
* Ultra simple logging
*/
SirTrevor.log = function(message) {
if (!_.isUndefined(console) && SirTrevor.DEBUG) {
console.log(message);
}
};
SirTrevor.Locales = {
en: {
general: {
'delete': 'Delete?',
'drop': 'Drag __block__ here',
'paste': 'Or paste URL here',
'upload': '...or choose a file',
'close': 'close',
'position': 'Position',
'wait': 'Please wait...',
'link': 'Enter a link'
},
errors: {
'title': "You have the following errors:",
'validation_fail': "__type__ block is invalid",
'block_empty': "__name__ must not be empty",
'type_missing': "You must have a block of type __type__",
'required_type_empty': "A required block type __type__ is empty",
'load_fail': "There was a problem loading the contents of the document"
},
blocks: {
text: {
'title': "Text"
},
list: {
'title': "List"
},
quote: {
'title': "Quote",
'credit_field': "Credit"
},
image: {
'title': "Image",
'upload_error': "There was a problem with your upload"
},
video: {
'title': "Video"
},
tweet: {
'title': "Tweet",
'fetch_error': "There was a problem fetching your tweet"
},
embedly: {
'title': "Embedly",
'fetch_error': "There was a problem fetching your embed",
'key_missing': "An Embedly API key must be present"
},
heading: {
'title': "Heading"
}
}
}
};
if (window.i18n === undefined) {
// Minimal i18n stub that only reads the English strings
SirTrevor.log("Using i18n stub");
window.i18n = {
t: function(key, options) {
var parts = key.split(':'), str, obj, part, i;
obj = SirTrevor.Locales[SirTrevor.LANGUAGE];
for(i = 0; i < parts.length; i++) {
part = parts[i];
if(!_.isUndefined(obj[part])) {
obj = obj[part];
}
}
str = obj;
if (!_.isString(str)) { return ""; }
if (str.indexOf('__') >= 0) {
_.each(options, function(value, opt) {
str = str.replace('__' + opt + '__', value);
});
}
return str;
}
};
} else {
SirTrevor.log("Using i18next");
// Only use i18next when the library has been loaded by the user, keeps
// dependencies slim
i18n.init({ resStore: SirTrevor.Locales, fallbackLng: SirTrevor.LANGUAGE,
ns: { namespaces: ['general', 'blocks'], defaultNs: 'general' }
});
}
//fgnass.github.com/spin.js#v1.2.5
(function(a,b,c){function g(a,c){var d=b.createElement(a||"div"),e;for(e in c)d[e]=c[e];return d}function h(a){for(var b=1,c=arguments.length;b<c;b++)a.appendChild(arguments[b]);return a}function j(a,b,c,d){var g=["opacity",b,~~(a*100),c,d].join("-"),h=.01+c/d*100,j=Math.max(1-(1-a)/b*(100-h),a),k=f.substring(0,f.indexOf("Animation")).toLowerCase(),l=k&&"-"+k+"-"||"";return e[g]||(i.insertRule("@"+l+"keyframes "+g+"{"+"0%{opacity:"+j+"}"+h+"%{opacity:"+a+"}"+(h+.01)+"%{opacity:1}"+(h+b)%100+"%{opacity:"+a+"}"+"100%{opacity:"+j+"}"+"}",0),e[g]=1),g}function k(a,b){var e=a.style,f,g;if(e[b]!==c)return b;b=b.charAt(0).toUpperCase()+b.slice(1);for(g=0;g<d.length;g++){f=d[g]+b;if(e[f]!==c)return f}}function l(a,b){for(var c in b)a.style[k(a,c)||c]=b[c];return a}function m(a){for(var b=1;b<arguments.length;b++){var d=arguments[b];for(var e in d)a[e]===c&&(a[e]=d[e])}return a}function n(a){var b={x:a.offsetLeft,y:a.offsetTop};while(a=a.offsetParent)b.x+=a.offsetLeft,b.y+=a.offsetTop;return b}var d=["webkit","Moz","ms","O"],e={},f,i=function(){var a=g("style");return h(b.getElementsByTagName("head")[0],a),a.sheet||a.styleSheet}(),o={lines:12,length:7,width:5,radius:10,rotate:0,color:"#000",speed:1,trail:100,opacity:.25,fps:20,zIndex:2e9,className:"spinner",top:"auto",left:"auto"},p=function q(a){if(!this.spin)return new q(a);this.opts=m(a||{},q.defaults,o)};p.defaults={},m(p.prototype,{spin:function(a){this.stop();var b=this,c=b.opts,d=b.el=l(g(0,{className:c.className}),{position:"relative",zIndex:c.zIndex}),e=c.radius+c.length+c.width,h,i;a&&(a.insertBefore(d,a.firstChild||null),i=n(a),h=n(d),l(d,{left:(c.left=="auto"?i.x-h.x+(a.offsetWidth>>1):c.left+e)+"px",top:(c.top=="auto"?i.y-h.y+(a.offsetHeight>>1):c.top+e)+"px"})),d.setAttribute("aria-role","progressbar"),b.lines(d,b.opts);if(!f){var j=0,k=c.fps,m=k/c.speed,o=(1-c.opacity)/(m*c.trail/100),p=m/c.lines;!function q(){j++;for(var a=c.lines;a;a--){var e=Math.max(1-(j+a*p)%m*o,c.opacity);b.opacity(d,c.lines-a,e,c)}b.timeout=b.el&&setTimeout(q,~~(1e3/k))}()}return b},stop:function(){var a=this.el;return a&&(clearTimeout(this.timeout),a.parentNode&&a.parentNode.removeChild(a),this.el=c),this},lines:function(a,b){function e(a,d){return l(g(),{position:"absolute",width:b.length+b.width+"px",height:b.width+"px",background:a,boxShadow:d,transformOrigin:"left",transform:"rotate("+~~(360/b.lines*c+b.rotate)+"deg) translate("+b.radius+"px"+",0)",borderRadius:(b.width>>1)+"px"})}var c=0,d;for(;c<b.lines;c++)d=l(g(),{position:"absolute",top:1+~(b.width/2)+"px",transform:b.hwaccel?"translate3d(0,0,0)":"",opacity:b.opacity,animation:f&&j(b.opacity,b.trail,c,b.lines)+" "+1/b.speed+"s linear infinite"}),b.shadow&&h(d,l(e("#000","0 0 4px #000"),{top:"2px"})),h(a,h(d,e(b.color,"0 0 1px rgba(0,0,0,.1)")));return a},opacity:function(a,b,c){b<a.childNodes.length&&(a.childNodes[b].style.opacity=c)}}),!function(){function a(a,b){return g("<"+a+' xmlns="urn:schemas-microsoft.com:vml" class="spin-vml">',b)}var b=l(g("group"),{behavior:"url(#default#VML)"});!k(b,"transform")&&b.adj?(i.addRule(".spin-vml","behavior:url(#default#VML)"),p.prototype.lines=function(b,c){function f(){return l(a("group",{coordsize:e+" "+e,coordorigin:-d+" "+ -d}),{width:e,height:e})}function k(b,e,g){h(i,h(l(f(),{rotation:360/c.lines*b+"deg",left:~~e}),h(l(a("roundrect",{arcsize:1}),{width:d,height:c.width,left:c.radius,top:-c.width>>1,filter:g}),a("fill",{color:c.color,opacity:c.opacity}),a("stroke",{opacity:0}))))}var d=c.length+c.width,e=2*d,g=-(c.width+c.length)*2+"px",i=l(f(),{position:"absolute",top:g,left:g}),j;if(c.shadow)for(j=1;j<=c.lines;j++)k(j,-2,"progid:DXImageTransform.Microsoft.Blur(pixelradius=2,makeshadow=1,shadowopacity=.3)");for(j=1;j<=c.lines;j++)k(j);return h(b,i)},p.prototype.opacity=function(a,b,c,d){var e=a.firstChild;d=d.shadow&&d.lines||0,e&&b+d<e.childNodes.length&&(e=e.childNodes[b+d],e=e&&e.firstChild,e=e&&e.firstChild,e&&(e.opacity=c))}):f=k(b,"animation")}(),a.Spinner=p})(window,document);
/*
* Sir Trevor Editor Store
* By default we store the complete data on the instances $el
* We can easily extend this and store it on some server or something
*/
SirTrevor.editorStore = function(editor, method, options) {
var resp;
options = options || {};
switch(method) {
case "create":
// Grab our JSON from the textarea and clean any whitespace incase there is a line wrap between the opening and closing textarea tags
var content = _.trim(editor.$el.val());
editor.dataStore = { data: [] };
if (content.length > 0) {
try {
// Ensure the JSON string has a data element that's an array
var str = JSON.parse(content);
if (!_.isUndefined(str.data)) {
// Set it
editor.dataStore = str;
}
} catch(e) {
editor.errors.push({ text: i18n.t("errors:load_fail") });
editor.renderErrors();
SirTrevor.log('Sorry there has been a problem with parsing the JSON');
SirTrevor.log(e);
}
}
break;
case "reset":
editor.dataStore = { data: [] };
break;
case "add":
if (options.data) {
editor.dataStore.data.push(options.data);
resp = editor.dataStore;
}
break;
case "save":
// Store to our element
editor.$el.val((editor.dataStore.data.length > 0) ? JSON.stringify(editor.dataStore) : '');
break;
case "read":
resp = editor.dataStore;
break;
}
if(resp) {
return resp;
}
};
/*
SirTrevor.Submittable
--
We need a global way of setting if the editor can and can't be submitted,
and a way to disable the submit button and add messages (when appropriate)
We also need this to be highly extensible so it can be overridden.
This will be triggered *by anything* so it needs to subscribe to events.
*/
SirTrevor.Submittable = function($form){
this.$form = $form;
this.intialize();
};
_.extend(SirTrevor.Submittable.prototype, {
intialize: function(){
this.$submitBtn = this.$form.find("input[type='submit']");
var btnTitles = [];
_.each(this.$submitBtn, function(btn){
btnTitles.push($(btn).attr('value'));
});
this.submitBtnTitles = btnTitles;
this.canSubmit = true;
this.globalUploadCount = 0;
this._bindEvents();
},
setSubmitButton: function(e, message) {
this.$submitBtn.attr('value', message);
},
resetSubmitButton: function(){
_.each(this.$submitBtn, function(item, index){
$(item).attr('value', this.submitBtnTitles[index]);
}, this);
},
onUploadStart: function(e){
this.globalUploadCount++;
SirTrevor.log('onUploadStart called ' + this.globalUploadCount);
if(this.globalUploadCount === 1) {
this._disableSubmitButton();
}
},
onUploadStop: function(e) {
this.globalUploadCount = (this.globalUploadCount <= 0) ? 0 : this.globalUploadCount - 1;
SirTrevor.log('onUploadStop called ' + this.globalUploadCount);
if(this.globalUploadCount === 0) {
this._enableSubmitButton();
}
},
onError: function(e){
SirTrevor.log('onError called');
this.canSubmit = false;
},
_disableSubmitButton: function(message){
this.setSubmitButton(null, message || i18n.t("general:wait"));
this.$submitBtn
.attr('disabled', 'disabled')
.addClass('disabled');
},
_enableSubmitButton: function(){
this.resetSubmitButton();
this.$submitBtn
.removeAttr('disabled')
.removeClass('disabled');
},
_events : {
"disableSubmitButton" : "_disableSubmitButton",
"enableSubmitButton" : "_enableSubmitButton",
"setSubmitButton" : "setSubmitButton",
"resetSubmitButton" : "resetSubmitButton",
"onError" : "onError",
"onUploadStart" : "onUploadStart",
"onUploadStop" : "onUploadStop"
},
_bindEvents: function(){
_.forEach(this._events, function(callback, type) {
SirTrevor.EventBus.on(type, this[callback], this);
}, this);
}
});
/*
* Sir Trevor Uploader
* Generic Upload implementation that can be extended for blocks
*/
SirTrevor.fileUploader = function(block, file, success, error) {
var uid = [block.blockID, (new Date()).getTime(), 'raw'].join('-');
var data = new FormData();
data.append('attachment[name]', file.name);
data.append('attachment[file]', file);
data.append('attachment[uid]', uid);
block.resetMessages();
var callbackSuccess = function(){
SirTrevor.log('Upload callback called');
if (!_.isUndefined(success) && _.isFunction(success)) {
success.apply(block, arguments);
}
};
var callbackError = function(){
SirTrevor.log('Upload callback error called');
if (!_.isUndefined(error) && _.isFunction(error)) {
error.apply(block, arguments);
}
};
var xhr = $.ajax({
url: SirTrevor.DEFAULTS.uploadUrl,
data: data,
cache: false,
contentType: false,
processData: false,
dataType: 'json',
type: 'POST'
});
block.addQueuedItem(uid, xhr);
xhr.done(callbackSuccess)
.fail(callbackError)
.always(_.bind(block.removeQueuedItem, block, uid));
return xhr;
};
/*
Underscore helpers
*/
var url_regex = /^(?:([A-Za-z]+):)?(\/{0,3})([0-9.\-A-Za-z]+)(?::(\d+))?(?:\/([^?#]*))?(?:\?([^#]*))?(?:#(.*))?$/;
_.mixin({
isURI : function(string) {
return (url_regex.test(string));
},
titleize: function(str){
if (str === null) return '';
str = String(str).toLowerCase();
return str.replace(/(?:^|\s|-)\S/g, function(c){ return c.toUpperCase(); });
},
classify: function(str){
return _.titleize(String(str).replace(/[\W_]/g, ' ')).replace(/\s/g, '');
},
classifyList: function(a){
return _.map(a, function(i){ return _.classify(i); });
},
capitalize : function(string) {
return string.charAt(0).toUpperCase() + string.substring(1).toLowerCase();
},
underscored: function(str){
return _.trim(str).replace(/([a-z\d])([A-Z]+)/g, '$1_$2')
.replace(/[-\s]+/g, '_').toLowerCase();
},
trim : function(string) {
return string.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
},
reverse: function(str) {
return str.split("").reverse().join("");
},
flattern: function(obj) {
var x = {};
_.each(obj, function(a,b) {
x[(_.isArray(obj)) ? a : b] = true;
});
return x;
},
to_slug: function(str) {
return str
.toLowerCase()
.replace(/[^\w ]+/g,'')
.replace(/ +/g,'-');
}
});
SirTrevor.toHTML = function(markdown, type) {
// MD -> HTML
type = _.classify(type);
var html = markdown,
shouldWrap = type === "Text";
if(_.isUndefined(shouldWrap)) { shouldWrap = false; }
if (shouldWrap) {
html = "<div>" + html;
}
html = html.replace(/\[([^\]]+)\]\(([^\)]+)\)/gm,function(match, p1, p2){
return "<a href='"+p2+"'>"+p1.replace(/\r?\n/g, '')+"</a>";
});
// This may seem crazy, but because JS doesn't have a look behind,
// we reverse the string to regex out the italic items (and bold)
// and look for something that doesn't start (or end in the reversed strings case)
// with a slash.
html = _.reverse(
_.reverse(html)
.replace(/_(?!\\)((_\\|[^_])*)_(?=$|[^\\])/gm, function(match, p1) {
return ">i/<"+ p1.replace(/\r?\n/g, '').replace(/[\s]+$/,'') +">i<";
})
.replace(/\*\*(?!\\)((\*\*\\|[^\*\*])*)\*\*(?=$|[^\\])/gm, function(match, p1){
return ">b/<"+ p1.replace(/\r?\n/g, '').replace(/[\s]+$/,'') +">b<";
})
);
html = html.replace(/^\> (.+)$/mg,"$1");
// Use custom formatters toHTML functions (if any exist)
var formatName, format;
for(formatName in SirTrevor.Formatters) {
if (SirTrevor.Formatters.hasOwnProperty(formatName)) {
format = SirTrevor.Formatters[formatName];
// Do we have a toHTML function?
if (!_.isUndefined(format.toHTML) && _.isFunction(format.toHTML)) {
html = format.toHTML(html);
}
}
}
// Use custom block toHTML functions (if any exist)
var block;
if (SirTrevor.Blocks.hasOwnProperty(type)) {
block = SirTrevor.Blocks[type];
// Do we have a toHTML function?
if (!_.isUndefined(block.prototype.toHTML) && _.isFunction(block.prototype.toHTML)) {
html = block.prototype.toHTML(html);
}
}
if (shouldWrap) {
html = html.replace(/\r?\n\r?\n/gm, "</div><div><br></div><div>");
html = html.replace(/\r?\n/gm, "</div><div>");
}
html = html.replace(/\t/g, " ")
.replace(/\r?\n/g, "<br>")
.replace(/\*\*/, "")
.replace(/__/, ""); // Cleanup any markdown characters left
// Replace escaped
html = html.replace(/\\\*/g, "*")
.replace(/\\\[/g, "[")
.replace(/\\\]/g, "]")
.replace(/\\\_/g, "_")
.replace(/\\\(/g, "(")
.replace(/\\\)/g, ")")
.replace(/\\\-/g, "-");
if (shouldWrap) {
html += "</div>";
}
return html;
};
SirTrevor.toMarkdown = function(content, type) {
type = _.classify(type);
var markdown = content;
//Normalise whitespace
markdown = markdown.replace(/ /g," ");
// First of all, strip any additional formatting
// MSWord, I'm looking at you, punk.
markdown = markdown.replace(/( class=(")?Mso[a-zA-Z]+(")?)/g, '')
.replace(/<!--(.*?)-->/g, '')
.replace(/\/\*(.*?)\*\//g, '')
.replace(/<(\/)*(meta|link|span|\\?xml:|st1:|o:|font)(.*?)>/gi, '');
var badTags = ['style', 'script', 'applet', 'embed', 'noframes', 'noscript'],
tagStripper, i;
for (i = 0; i< badTags.length; i++) {
tagStripper = new RegExp('<'+badTags[i]+'.*?'+badTags[i]+'(.*?)>', 'gi');
markdown = markdown.replace(tagStripper, '');
}
// Escape anything in here that *could* be considered as MD
// Markdown chars we care about: * [] _ () -
markdown = markdown.replace(/\*/g, "\\*")
.replace(/\[/g, "\\[")
.replace(/\]/g, "\\]")
.replace(/\_/g, "\\_")
.replace(/\(/g, "\\(")
.replace(/\)/g, "\\)")
.replace(/\-/g, "\\-");
var inlineTags = ["em", "i", "strong", "b"];
for (i = 0; i< inlineTags.length; i++) {
tagStripper = new RegExp('<'+inlineTags[i]+'><br></'+inlineTags[i]+'>', 'gi');
markdown = markdown.replace(tagStripper, '<br>');
}
function replaceBolds(match, p1, p2){
if(_.isUndefined(p2)) { p2 = ''; }
return "**" + p1.replace(/<(.)?br(.)?>/g, '') + "**" + p2;
}
function replaceItalics(match, p1, p2){
if(_.isUndefined(p2)) { p2 = ''; }
return "_" + p1.replace(/<(.)?br(.)?>/g, '') + "_" + p2;
}
markdown = markdown.replace(/<(\w+)(?:\s+\w+="[^"]+(?:"\$[^"]+"[^"]+)?")*>\s*<\/\1>/gim, '') //Empty elements
.replace(/\n/mg,"")
.replace(/<a.*?href=[""'](.*?)[""'].*?>(.*?)<\/a>/gim, function(match, p1, p2){
return "[" + p2.trim().replace(/<(.)?br(.)?>/g, '') + "]("+ p1 +")";
}) // Hyperlinks
.replace(/<strong>(?:\s*)(.*?)(\s)*?<\/strong>/gim, replaceBolds)
.replace(/<b>(?:\s*)(.*?)(\s*)?<\/b>/gim, replaceBolds)
.replace(/<em>(?:\s*)(.*?)(\s*)?<\/em>/gim, replaceItalics)
.replace(/<i>(?:\s*)(.*?)(\s*)?<\/i>/gim, replaceItalics);
// Use custom formatters toMarkdown functions (if any exist)
var formatName, format;
for(formatName in SirTrevor.Formatters) {
if (SirTrevor.Formatters.hasOwnProperty(formatName)) {
format = SirTrevor.Formatters[formatName];
// Do we have a toMarkdown function?
if (!_.isUndefined(format.toMarkdown) && _.isFunction(format.toMarkdown)) {
markdown = format.toMarkdown(markdown);
}
}
}
// Do our generic stripping out
markdown = markdown.replace(/([^<>]+)(<div>)/g,"$1\n$2") // Divitis style line breaks (handle the first line)
.replace(/<div><div>/g,'\n<div>') // ^ (double opening divs with one close from Chrome)
.replace(/(?:<div>)([^<>]+)(?:<div>)/g,"$1\n") // ^ (handle nested divs that start with content)
.replace(/(?:<div>)(?:<br>)?([^<>]+)(?:<br>)?(?:<\/div>)/g,"$1\n") // ^ (handle content inside divs)
.replace(/<\/p>/g,"\n\n") // P tags as line breaks
.replace(/<(.)?br(.)?>/g,"\n") // Convert normal line breaks
.replace(/</g,"<").replace(/>/g,">"); // Encoding
// Use custom block toMarkdown functions (if any exist)
var block;
if (SirTrevor.Blocks.hasOwnProperty(type)) {
block = SirTrevor.Blocks[type];
// Do we have a toMarkdown function?
if (!_.isUndefined(block.prototype.toMarkdown) && _.isFunction(block.prototype.toMarkdown)) {
markdown = block.prototype.toMarkdown(markdown);
}
}
// Strip remaining HTML
if (SirTrevor.DEFAULTS.toMarkdown.aggresiveHTMLStrip) {
markdown = markdown.replace(/<\/?[^>]+(>|$)/g, "");
} else {
markdown = markdown.replace(/<(?=\S)\/?[^>]+(>|$)/ig, "");
}
return markdown;
};
SirTrevor.EventBus = _.extend({}, SirTrevor.Events);
/* Block Mixins */
SirTrevor.BlockMixins.Ajaxable = {
mixinName: "Ajaxable",
ajaxable: true,
initializeAjaxable: function(){
this._queued = [];
},
addQueuedItem: function(name, deffered) {
SirTrevor.log("Adding queued item for " + this.blockID + " called " + name);
SirTrevor.EventBus.trigger("onUploadStart", this.blockID);
this._queued.push({ name: name, deffered: deffered });
},
removeQueuedItem: function(name) {
SirTrevor.log("Removing queued item for " + this.blockID + " called " + name);
SirTrevor.EventBus.trigger("onUploadStop", this.blockID);
this._queued = _.reject(this._queued, function(queued){ return queued.name == name; });
},
hasItemsInQueue: function() {
return this._queued.length > 0;
},
resolveAllInQueue: function() {
_.each(this._queued, function(item){
SirTrevor.log("Aborting queued request: " + item.name);
item.deffered.abort();
}, this);
}
};
SirTrevor.BlockMixins.Controllable = {
mixinName: "Controllable",
initializeControllable: function() {
SirTrevor.log("Adding controllable to block " + this.blockID);
this.$control_ui = $('<div>', {'class': 'st-block__control-ui'});
_.each(
this.controls,
function(handler, cmd) {
// Bind configured handler to current block context
this.addUiControl(cmd, _.bind(handler, this));
},
this
);
this.$inner.append(this.$control_ui);
},
getControlTemplate: function(cmd) {
return $("<a>",
{ 'data-icon': cmd,
'class': 'st-icon st-block-control-ui-btn st-block-control-ui-btn--' + cmd
});
},
addUiControl: function(cmd, handler) {
this.$control_ui.append(this.getControlTemplate(cmd));
this.$control_ui.on('click', '.st-block-control-ui-btn--' + cmd, handler);
}
};
/* Adds drop functionaltiy to this block */
SirTrevor.BlockMixins.Droppable = {
mixinName: "Droppable",
valid_drop_file_types: ['File', 'Files', 'text/plain', 'text/uri-list'],
initializeDroppable: function() {
SirTrevor.log("Adding droppable to block " + this.blockID);
this.drop_options = _.extend({}, SirTrevor.DEFAULTS.Block.drop_options, this.drop_options);
var drop_html = $(_.template(this.drop_options.html,
{ block: this }));
this.$editor.hide();
this.$inputs.append(drop_html);
this.$dropzone = drop_html;
// Bind our drop event
this.$dropzone.dropArea()
.bind('drop', _.bind(this._handleDrop, this));
this.$inner.addClass('st-block__inner--droppable');
},
_handleDrop: function(e) {
e.preventDefault();
e = e.originalEvent;
var el = $(e.target),
types = e.dataTransfer.types,
type, data = [];
el.removeClass('st-dropzone--dragover');
/*
Check the type we just received,
delegate it away to our blockTypes to process
*/
if (!_.isUndefined(types) &&
_.some(types, function(type){ return _.include(this.valid_drop_file_types, type); }, this)) {
this.onDrop(e.dataTransfer);
}
SirTrevor.EventBus.trigger('block:content:dropped', this.blockID);
}
};
SirTrevor.BlockMixins.Fetchable = {
mixinName: "Fetchable",
initializeFetchable: function(){
this.withMixin(SirTrevor.BlockMixins.Ajaxable);
},
fetch: function(options, success, failure){
var uid = _.uniqueId(this.blockID + "_fetch"),
xhr = $.ajax(options);
this.resetMessages();
this.addQueuedItem(uid, xhr);
if(!_.isUndefined(success)) {
xhr.done(_.bind(success, this));
}
if(!_.isUndefined(failure)) {
xhr.fail(_.bind(failure, this));
}
xhr.always(_.bind(this.removeQueuedItem, this, uid));
return xhr;
}
};
SirTrevor.BlockMixins.Pastable = {
mixinName: "Pastable",
initializePastable: function() {
SirTrevor.log("Adding pastable to block " + this.blockID);
this.paste_options = _.extend({}, SirTrevor.DEFAULTS.Block.paste_options, this.paste_options);
this.$inputs.append(_.template(this.paste_options.html, this));
this.$('.st-paste-block')
.bind('click', function(){ $(this).select(); })
.bind('paste', this._handleContentPaste)
.bind('submit', this._handleContentPaste);
}
};
SirTrevor.BlockMixins.Uploadable = {
mixinName: "Uploadable",
uploadsCount: 0,
initializeUploadable: function() {
SirTrevor.log("Adding uploadable to block " + this.blockID);
this.withMixin(SirTrevor.BlockMixins.Ajaxable);
this.upload_options = _.extend({}, SirTrevor.DEFAULTS.Block.upload_options, this.upload_options);
this.$inputs.append(_.template(this.upload_options.html, this));
},
uploader: function(file, success, failure){
return SirTrevor.fileUploader(this, file, success, failure);
}
};
SirTrevor.BlockPositioner = (function(){
var template = [
"<div class='st-block-positioner__inner'>",
"<span class='st-block-positioner__selected-value'></span>",
"<select class='st-block-positioner__select'></select>",
"</div>"
].join("\n");
var BlockPositioner = function(block_element, instance_id) {
this.$block = block_element;
this.instanceID = instance_id;
this.total_blocks = 0;
this._ensureElement();
this._bindFunctions();
this.initialize();
};
_.extend(BlockPositioner.prototype, FunctionBind, Renderable, {
bound: ['onBlockCountChange', 'onSelectChange', 'toggle', 'show', 'hide'],
className: 'st-block-positioner',
visibleClass: 'st-block-positioner--is-visible',