/*
* Mentions Input
* Version 1.0.2
* Written by: Kenneth Auchenberg (Podio)
*
* Using underscore.js
*
* License: MIT License - http://www.opensource.org/licenses/mit-license.php
*/
(function ($, _, undefined) {
// Settings
var KEY = { BACKSPACE : 8, TAB : 9, RETURN : 13, ESC : 27, LEFT : 37, UP : 38, RIGHT : 39, DOWN : 40, COMMA : 188, SPACE : 32, HOME : 36, END : 35 }; // Keys "enum"
//Default settings
var defaultSettings = {
triggerChar : '@', //Char that respond to event
onDataRequest : $.noop, //Function where we can search the data
minChars : 2, //Minimum chars to fire the event
allowRepeat : false, //Allow repeat mentions
showAvatars : true, //Show the avatars
elastic : true, //Grow the textarea automatically
defaultValue : '',
onCaret : false,
classes : {
autoCompleteItemActive : "active" //Classes to apply in each item
},
templates : {
wrapper : _.template('<div class="mentions-input-box"></div>'),
autocompleteList : _.template('<div class="mentions-autocomplete-list"></div>'),
autocompleteListItem : _.template('<li data-ref-id="<%= id %>" data-ref-type="<%= type %>" data-display="<%= display %>"><%= content %></li>'),
autocompleteListItemAvatar : _.template('<img src="<%= avatar %>" />'),
autocompleteListItemIcon : _.template('<div class="icon <%= icon %>"></div>'),
mentionsOverlay : _.template('<div class="mentions"><div></div></div>'),
mentionItemSyntax : _.template('@[<%= value %>](<%= type %>:<%= id %>)'),
mentionItemHighlight : _.template('<strong><span><%= value %></span></strong>')
}
};
//Class util
var utils = {
//Encodes the character with _.escape function (undersocre)
htmlEncode : function (str) {
return _.escape(str);
},
//Encodes the character to be used with RegExp
regexpEncode : function (str) {
return str.replace(/([.*+?^=!:${}()|\[\]\/\\])/g, "\\$1");
},
highlightTerm : function (value, term) {
if (!term && !term.length) {
return value;
}
return value.replace(new RegExp("(?![^&;]+;)(?!<[^<>]*)(" + term + ")(?![^<>]*>)(?![^&;]+;)", "gi"), "<b>$1</b>");
},
//Sets the caret in a valid position
setCaratPosition : function (domNode, caretPos) {
if (domNode.createTextRange) {
var range = domNode.createTextRange();
range.move('character', caretPos);
range.select();
} else {
if (domNode.selectionStart) {
domNode.focus();
domNode.setSelectionRange(caretPos, caretPos);
} else {
domNode.focus();
}
}
},
//Deletes the white spaces
rtrim: function(string) {
return string.replace(/\s+$/,"");
}
};
//Main class of MentionsInput plugin
var MentionsInput = function (settings) {
var domInput,
elmInputBox,
elmInputWrapper,
elmAutocompleteList,
elmWrapperBox,
elmMentionsOverlay,
elmActiveAutoCompleteItem,
mentionsCollection = [],
autocompleteItemCollection = {},
inputBuffer = [],
currentDataQuery = '';
//Mix the default setting with the users settings
settings = $.extend(true, {}, defaultSettings, settings );
//Initializes the text area target
function initTextarea() {
elmInputBox = $(domInput); //Get the text area target
//If the text area is already configured, return
if (elmInputBox.attr('data-mentions-input') === 'true') {
return;
}
elmInputWrapper = elmInputBox.parent(); //Get the DOM element parent
elmWrapperBox = $(settings.templates.wrapper());
elmInputBox.wrapAll(elmWrapperBox); //Wrap all the text area into the div elmWrapperBox
elmWrapperBox = elmInputWrapper.find('> div.mentions-input-box'); //Obtains the div elmWrapperBox that now contains the text area
elmInputBox.attr('data-mentions-input', 'true'); //Sets the attribute data-mentions-input to true -> Defines if the text area is already configured
elmInputBox.bind('keydown', onInputBoxKeyDown); //Bind the keydown event to the text area
elmInputBox.bind('keypress', onInputBoxKeyPress); //Bind the keypress event to the text area
elmInputBox.bind('click', onInputBoxClick); //Bind the click event to the text area
elmInputBox.bind('blur', onInputBoxBlur); //Bind the blur event to the text area
if (navigator.userAgent.indexOf("MSIE 8") > -1) {
elmInputBox.bind('propertychange', onInputBoxInput); //IE8 won't fire the input event, so let's bind to the propertychange
} else {
elmInputBox.bind('input', onInputBoxInput); //Bind the input event to the text area
}
// Elastic textareas, grow automatically
if( settings.elastic ) {
elmInputBox.elastic();
}
}
//Initializes the autocomplete list, append to elmWrapperBox and delegate the mousedown event to li elements
function initAutocomplete() {
elmAutocompleteList = $(settings.templates.autocompleteList()); //Get the HTML code for the list
elmAutocompleteList.appendTo(elmWrapperBox); //Append to elmWrapperBox element
elmAutocompleteList.delegate('li', 'mousedown', onAutoCompleteItemClick); //Delegate the event
}
//Initializes the mentions' overlay
function initMentionsOverlay() {
elmMentionsOverlay = $(settings.templates.mentionsOverlay()); //Get the HTML code of the mentions' overlay
elmMentionsOverlay.prependTo(elmWrapperBox); //Insert into elmWrapperBox the mentions overlay
}
//Updates the values of the main variables
function updateValues() {
var syntaxMessage = getInputBoxValue(); //Get the actual value of the text area
_.each(mentionsCollection, function (mention) {
var textSyntax = settings.templates.mentionItemSyntax(mention);
syntaxMessage = syntaxMessage.replace(new RegExp(utils.regexpEncode(mention.value), 'g'), textSyntax);
});
var mentionText = utils.htmlEncode(syntaxMessage); //Encode the syntaxMessage
_.each(mentionsCollection, function (mention) {
var formattedMention = _.extend({}, mention, {value: utils.htmlEncode(mention.value)});
var textSyntax = settings.templates.mentionItemSyntax(formattedMention);
var textHighlight = settings.templates.mentionItemHighlight(formattedMention);
mentionText = mentionText.replace(new RegExp(utils.regexpEncode(textSyntax), 'g'), textHighlight);
});
mentionText = mentionText.replace(/\n/g, '<br />'); //Replace the escape character for <br />
mentionText = mentionText.replace(/ {2}/g, ' '); //Replace the 2 preceding token to
elmInputBox.data('messageText', syntaxMessage); //Save the messageText to elmInputBox
elmInputBox.trigger('updated');
elmMentionsOverlay.find('div').html(mentionText); //Insert into a div of the elmMentionsOverlay the mention text
}
//Cleans the buffer
function resetBuffer() {
inputBuffer = [];
}
//Updates the mentions collection
function updateMentionsCollection() {
var inputText = getInputBoxValue(); //Get the actual value of text area
//Returns the values that doesn't match the condition
mentionsCollection = _.reject(mentionsCollection, function (mention, index) {
return !mention.value || inputText.indexOf(mention.value) == -1;
});
mentionsCollection = _.compact(mentionsCollection); //Delete all the falsy values of the array and return the new array
}
//Adds mention to mentions collections
function addMention(mention) {
var currentMessage = getInputBoxValue(); //Get the actual value of the text area
// Using a regex to figure out positions
var regex = new RegExp("\\" + settings.triggerChar + currentDataQuery, "gi");
regex.exec(currentMessage); //Executes a search for a match in a specified string. Returns a result array, or null
var startCaretPosition = regex.lastIndex - currentDataQuery.length - 1; //Set the star caret position
var currentCaretPosition = regex.lastIndex; //Set the current caret position
var start = currentMessage.substr(0, startCaretPosition);
var end = currentMessage.substr(currentCaretPosition, currentMessage.length);
var startEndIndex = (start + mention.value).length + 1;
// See if there's the same mention in the list
if( !_.find(mentionsCollection, function (object) { return object.id == mention.id; }) ) {
mentionsCollection.push(mention);//Add the mention to mentionsColletions
}
// Cleaning before inserting the value, otherwise auto-complete would be triggered with "old" inputbuffer
resetBuffer();
currentDataQuery = '';
hideAutoComplete();
// Mentions and syntax message
var updatedMessageText = start + mention.value + ' ' + end;
elmInputBox.val(updatedMessageText); //Set the value to the txt area
elmInputBox.trigger('mention');
updateValues();
// Set correct focus and selection
elmInputBox.focus();
utils.setCaratPosition(elmInputBox[0], startEndIndex);
}
//Gets the actual value of the text area without white spaces from the beginning and end of the value
function getInputBoxValue() {
return $.trim(elmInputBox.val());
}
// This is taken straight from live (as of Sep 2012) GitHub code. The
// technique is known around the web. Just google it. Github's is quite
// succint though. NOTE: relies on selectionEnd, which as far as IE is concerned,
// it'll only work on 9+. Good news is nothing will happen if the browser
// doesn't support it.
function textareaSelectionPosition($el) {
var a, b, c, d, e, f, g, h, i, j, k;
if (!(i = $el[0])) return;
if (!$(i).is("textarea")) return;
if (i.selectionEnd == null) return;
g = {
position: "absolute",
overflow: "auto",
whiteSpace: "pre-wrap",
wordWrap: "break-word",
boxSizing: "content-box",
top: 0,
left: -9999
}, h = ["boxSizing", "fontFamily", "fontSize", "fontStyle", "fontVariant", "fontWeight", "height", "letterSpacing", "lineHeight", "paddingBottom", "paddingLeft", "paddingRight", "paddingTop", "textDecoration", "textIndent", "textTransform", "width", "word-spacing"];
for (j = 0, k = h.length; j < k; j++) e = h[j], g[e] = $(i).css(e);
return c = document.createElement("div"), $(c).css(g), $(i).after(c), b = document.createTextNode(i.value.substring(0, i.selectionEnd)), a = document.createTextNode(i.value.substring(i.selectionEnd)), d = document.createElement("span"), d.innerHTML = " ", c.appendChild(b), c.appendChild(d), c.appendChild(a), c.scrollTop = i.scrollTop, f = $(d).position(), $(c).remove(), f
}
//Scrolls back to the input after autocomplete if the window has scrolled past the input
function scrollToInput() {
var elmDistanceFromTop = $(elmInputBox).offset().top; //input offset
var bodyDistanceFromTop = $('body').offset().top; //body offset
var distanceScrolled = $(window).scrollTop(); //distance scrolled
if (distanceScrolled > elmDistanceFromTop) {
//subtracts body distance to handle fixed headers
$(window).scrollTop(elmDistanceFromTop - bodyDistanceFromTop);
}
}
//Takes the click event when the user select a item of the dropdown
function onAutoCompleteItemClick(e) {
var elmTarget = $(this); //Get the item selected
var mention = autocompleteItemCollection[elmTarget.attr('data-uid')]; //Obtains the mention
addMention(mention);
scrollToInput();
return false;
}
//Takes the click event on text area
function onInputBoxClick(e) {
resetBuffer();
}
//Takes the blur event on text area
function onInputBoxBlur(e) {
hideAutoComplete();
}
//Takes the input event when users write or delete something
function onInputBoxInput(e) {
updateValues();
updateMentionsCollection();
var triggerCharIndex = _.lastIndexOf(inputBuffer, settings.triggerChar); //Returns the last match of the triggerChar in the inputBuffer
if (triggerCharIndex > -1) { //If the triggerChar is present in the inputBuffer array
currentDataQuery = inputBuffer.slice(triggerCharIndex + 1).join(''); //Gets the currentDataQuery
currentDataQuery = utils.rtrim(currentDataQuery); //Deletes the whitespaces
_.defer(_.bind(doSearch, this, currentDataQuery)); //Invoking the function doSearch ( Bind the function to this)
}
}
//Takes the keypress event
function onInputBoxKeyPress(e) {
if(e.keyCode !== KEY.BACKSPACE) { //If the key pressed is not the backspace
var typedValue = String.fromCharCode(e.which || e.keyCode); //Takes the string that represent this CharCode
inputBuffer.push(typedValue); //Push the value pressed into inputBuffer
}
}
//Takes the keydown event
function onInputBoxKeyDown(e) {
// This also matches HOME/END on OSX which is CMD+LEFT, CMD+RIGHT
if (e.keyCode === KEY.LEFT || e.keyCode === KEY.RIGHT || e.keyCode === KEY.HOME || e.keyCode === KEY.END) {
// Defer execution to ensure carat pos has changed after HOME/END keys then call the resetBuffer function
_.defer(resetBuffer);
// IE9 doesn't fire the oninput event when backspace or delete is pressed. This causes the highlighting
// to stay on the screen whenever backspace is pressed after a highlighed word. This is simply a hack
// to force updateValues() to fire when backspace/delete is pressed in IE9.
if (navigator.userAgent.indexOf("MSIE 9") > -1) {
_.defer(updateValues); //Call the updateValues function
}
return;
}
//If the key pressed was the backspace
if (e.keyCode === KEY.BACKSPACE) {
inputBuffer = inputBuffer.slice(0, -1 + inputBuffer.length); // Can't use splice, not available in IE
return;
}
//If the elmAutocompleteList is hidden
if (!elmAutocompleteList.is(':visible')) {
return true;
}
switch (e.keyCode) {
case KEY.UP: //If the key pressed was UP or DOWN
case KEY.DOWN:
var elmCurrentAutoCompleteItem = null;
if (e.keyCode === KEY.DOWN) { //If the key pressed was DOWN
if (elmActiveAutoCompleteItem && elmActiveAutoCompleteItem.length) { //If elmActiveAutoCompleteItem exits
elmCurrentAutoCompleteItem = elmActiveAutoCompleteItem.next(); //Gets the next li element in the list
} else {
elmCurrentAutoCompleteItem = elmAutocompleteList.find('li').first(); //Gets the first li element found
}
} else {
elmCurrentAutoCompleteItem = $(elmActiveAutoCompleteItem).prev(); //The key pressed was UP and gets the previous li element
}
if (elmCurrentAutoCompleteItem.length) {
selectAutoCompleteItem(elmCurrentAutoCompleteItem);
}
return false;
case KEY.RETURN: //If the key pressed was RETURN or TAB
case KEY.TAB:
if (elmActiveAutoCompleteItem && elmActiveAutoCompleteItem.length) { //If the elmActiveAutoCompleteItem exists
elmActiveAutoCompleteItem.trigger('mousedown'); //Calls the mousedown event
return false;
}
break;
}
return true;
}
//Hides the autoomplete
function hideAutoComplete() {
elmActiveAutoCompleteItem = null;
elmAutocompleteList.empty().hide();
}
//Selects the item in the autocomplete list
function selectAutoCompleteItem(elmItem) {
elmItem.addClass(settings.classes.autoCompleteItemActive); //Add the class active to item
elmItem.siblings().removeClass(settings.classes.autoCompleteItemActive); //Gets all li elements in autocomplete list and remove the class active
elmActiveAutoCompleteItem = elmItem; //Sets the item to elmActiveAutoCompleteItem
}
//Populates dropdown
function populateDropdown(query, results) {
elmAutocompleteList.show(); //Shows the autocomplete list
if(!settings.allowRepeat) {
// Filter items that has already been mentioned
var mentionValues = _.pluck(mentionsCollection, 'value');
results = _.reject(results, function (item) {
return _.include(mentionValues, item.name);
});
}
if (!results.length) { //If there are not elements hide the autocomplete list
hideAutoComplete();
return;
}
elmAutocompleteList.empty(); //Remove all li elements in autocomplete list
var elmDropDownList = $("<ul>").appendTo(elmAutocompleteList).hide(); //Inserts a ul element to autocomplete div and hide it
_.each(results, function (item, index) {
var itemUid = _.uniqueId('mention_'); //Gets the item with unique id
autocompleteItemCollection[itemUid] = _.extend({}, item, {value: item.name}); //Inserts the new item to autocompleteItemCollection
var elmListItem = $(settings.templates.autocompleteListItem({
'id' : utils.htmlEncode(item.id),
'display' : utils.htmlEncode(item.name),
'type' : utils.htmlEncode(item.type),
'content' : utils.highlightTerm(utils.htmlEncode((item.display ? item.display : item.name)), query)
})).attr('data-uid', itemUid); //Inserts the new item to list
//If the index is 0
if (index === 0) {
selectAutoCompleteItem(elmListItem);
}
//If show avatars is true
if (settings.showAvatars) {
var elmIcon;
//If the item has an avatar
if (item.avatar) {
elmIcon = $(settings.templates.autocompleteListItemAvatar({ avatar : item.avatar }));
} else { //If not then we set an default icon
elmIcon = $(settings.templates.autocompleteListItemIcon({ icon : item.icon }));
}
elmIcon.prependTo(elmListItem); //Inserts the elmIcon to elmListItem
}
elmListItem = elmListItem.appendTo(elmDropDownList); //Insets the elmListItem to elmDropDownList
});
elmAutocompleteList.show(); //Shows the elmAutocompleteList div
if (settings.onCaret) {
positionAutocomplete(elmAutocompleteList, elmInputBox);
}
elmDropDownList.show(); //Shows the elmDropDownList
}
//Search into data list passed as parameter
function doSearch(query) {
//If the query is not null, undefined, empty and has the minimum chars
if (query && query.length && query.length >= settings.minChars) {
//Call the onDataRequest function and then call the populateDropDrown
settings.onDataRequest.call(this, 'search', query, function (responseData) {
populateDropdown(query, responseData);
});
} else { //If the query is null, undefined, empty or has not the minimun chars
hideAutoComplete(); //Hide the autocompletelist
}
}
function positionAutocomplete(elmAutocompleteList, elmInputBox) {
var position = textareaSelectionPosition(elmInputBox),
lineHeight = parseInt(elmInputBox.css('line-height'), 10) || 18;
elmAutocompleteList.css('width', '15em'); // Sort of a guess
elmAutocompleteList.css('left', position.left);
elmAutocompleteList.css('top', lineHeight + position.top);
//check if the right position of auto complete is larger than the right position of the input
//if yes, reset the left of auto complete list to make it fit the input
var elmInputBoxRight = elmInputBox.offset().left + elmInputBox.width(),
elmAutocompleteListRight = elmAutocompleteList.offset().left + elmAutocompleteList.width();
if (elmInputBoxRight <= elmAutocompleteListRight) {
elmAutocompleteList.css('left', Math.abs(elmAutocompleteList.position().left - (elmAutocompleteListRight - elmInputBoxRight)));
}
}
//Resets the text area
function resetInput(currentVal) {
mentionsCollection = [];
var mentionText = utils.htmlEncode(currentVal);
var regex = new RegExp("(" + settings.triggerChar + ")\\[(.*?)\\]\\((.*?):(.*?)\\)", "gi");
var match, newMentionText = mentionText;
while ((match = regex.exec(mentionText)) != null) {
newMentionText = newMentionText.replace(match[0], match[1] + match[2]);
mentionsCollection.push({ 'id': match[4], 'type': match[3], 'value': match[2], 'trigger': match[1] });
}
elmInputBox.val(newMentionText);
updateValues();
}
// Public methods
return {
//Initializes the mentionsInput component on a specific element.
init : function (domTarget) {
domInput = domTarget;
initTextarea();
initAutocomplete();
initMentionsOverlay();
resetInput(settings.defaultValue);
//If the autocomplete list has prefill mentions
if( settings.prefillMention ) {
addMention( settings.prefillMention );
}
},
//An async method which accepts a callback function and returns a value of the input field (including markup) as a first parameter of this function. This is the value you want to send to your server.
val : function (callback) {
if (!_.isFunction(callback)) {
return;
}
callback.call(this, mentionsCollection.length ? elmInputBox.data('messageText') : getInputBoxValue());
},
//Resets the text area value and clears all mentions
reset : function () {
resetInput();
},
//An async method which accepts a callback function and returns a collection of mentions as hash objects as a first parameter.
getMentions : function (callback) {
if (!_.isFunction(callback)) {
return;
}
callback.call(this, mentionsCollection);
}
};
};
//Main function to include into jQuery and initialize the plugin
$.fn.mentionsInput = function (method, settings) {
var outerArguments = arguments; //Gets the arguments
//If method is not a function
if (typeof method === 'object' || !method) {
settings = method;
}
return this.each(function () {
var instance = $.data(this, 'mentionsInput') || $.data(this, 'mentionsInput', new MentionsInput(settings));
if (_.isFunction(instance[method])) {
return instance[method].apply(this, Array.prototype.slice.call(outerArguments, 1));
} else if (typeof method === 'object' || !method) {
return instance.init.call(this, this);
} else {
$.error('Method ' + method + ' does not exist');
}
});
};
})(jQuery, _);
Anons79 File Manager Version 1.0, Coded By Anons79
Email: [email protected]
Anons79 Mini Shell