Current File : /home/serb/www/freichat/administrator/admin_files/theme_maker/lib/js/jquery.inlinecomplete.js
(function ($) {
'use strict';
var _inlineComplete = {
/**
* Check browser support for HTML5 <datalist>
* https://developer.mozilla.org/en-US/docs/Web/HTML/Element/datalist
*
* @var bool
*/
dataListSupport: !!(document.createElement('datalist') && window.HTMLDataListElement),
_defaultOptions:{
list: [],
matchCase: false,
submitOnReturn: false,
// TODO Implement
startChar: '',
// TODO Implement
startCharCi: true,
disableDataList: false
},
/**
* Searches for a term in the terms-list which starts with userInput.
* @param userInput
* @param terms
* @returns {string|null}
* @private
*/
_searchTerm: function(userInput, terms) {
for (var i in terms) {
if (terms[i].substr(0, userInput.length) == userInput) {
return terms[i];
}
}
return null;
},
/**
* Fetches the current "word" the cursor is placed in. Technically this
* reads the passed text from the passed cursor position backwards
* until a space is reached.
* TODO This should actually search for the first non-alphabetic character (".", ",", ":", etc.)
* @param text
* @param cursorPosition
* @returns {string}
* @private
*/
_getCurrentWord: function(text, cursorPosition) {
var start = text.substr(0, cursorPosition).lastIndexOf(' ') + 1;
return text.substr(start, cursorPosition);
},
/**
* Performs the actual inline complete. Usually the body of the event
* callback.
* @param {Node} inputElement
* @param {Object} event
* @param {Object} options
*/
_performComplete:function (inputElement, event, options) {
if (event.which == 8 || event.which == 46 // Backspace, del
|| event.ctrlKey || event.which == 17 // Ctrl + Letter, or Ctrl
|| !options.list || options.list.length == 0
) {
return true;
} else if (event.which == 16) {
return this;
}
var $inputElement = $(inputElement),
userInput = this._getCurrentWord($inputElement.val()),
returnValue = true;
if (userInput != '') {
if (!options.matchCase) {
userInput = userInput.toLowerCase();
}
if (event.type == 'keydown') {
// Move selection
var selection = $inputElement.__getSelection(),
letter = String.fromCharCode(event.which);
if (letter == '')
return returnValue;
// String.fromCharCode returns uppercase...
if (!event.shiftKey) {
letter = letter.toLowerCase();
}
if (letter == selection.substr(0, 1)) {
$inputElement.__moveSelectionStart(1);
returnValue = false;
}
} else if(event.type == 'keyup') {
var curPos = $inputElement.__cursorPosition(),
inputValue = $inputElement.val();
var foundTerm = this._searchTerm(userInput, options.list);
// When a term was found and the input changed from the
// last time this event was fired. If the value didn't
// change it means that the user still enters the same
// word, hence we don't need to change the value.
if (foundTerm !== null && foundTerm != userInput) {
var beforeCursor = inputValue.substr(0, curPos),
afterCursor = inputValue.substr(curPos, inputValue.length),
curPosInWord = curPos - (inputValue.substr(0, curPos).lastIndexOf(' ') + 1);
// My sister suggested this var name...
var poop = foundTerm.substr(curPosInWord, foundTerm.length);
$inputElement.val(beforeCursor + poop + afterCursor);
$inputElement.__select(curPos, poop.length + curPos);
}
}
}
return returnValue;
}
};
$.fn.__select = function (startPos, endPos) {
if (typeof startPos == 'number' && typeof endPos == 'number') {
this.each(function () {
var start;
if (typeof this.selectionStart !== "undefined") {
this.selectionStart = startPos;
this.selectionEnd = endPos;
}
else {
var range = document.selection.createRange();
this.select();
var range2 = document.selection.createRange();
range2.setEndPoint("EndToStart", range);
start = range2.text.length;
this.select();
range = document.selection.createRange();
range.moveStart("character", start);
range.select();
}
});
}
return this;
};
$.fn.__getSelection = function() {
var el = this.get(0);
if (typeof el.selectionStart != 'undefined') {
return this.val().substr(el.selectionStart, el.selectionEnd);
} else {
var range = document.selection.createRange();
return range.text;
}
};
$.fn.__moveSelectionStart = function(amount) {
if (typeof amount == 'number') {
this.each(function() {
if (typeof this.selectionStart !== 'undefined') {
this.selectionStart += amount;
} else { // ie
var range = document.selection.createRange();
range.moveStart("character", amount);
range.select();
}
});
}
};
$.fn.__cursorPosition = function() {
if (typeof this.get(0).selectionStart !== 'undefined') {
return this.get(0).selectionStart;
} else { // ie
var range = document.selection.createRange();
range.moveStart("character", amount);
range.select();
}
};
/**
* Register inlineComplete plugin. This enables you to use $('input').inlineComplete();
*
* In the options object you have to at least include a list of list you want have completion for.
* The index for that list must be "list". You may also pass a URL. inlineComplete will then
* get the list of list from that source. Again, the response must contain the "list" index
* containing the list.
* @param {Object} options
*/
$.fn.inlineComplete = function (options) {
this.filter('input[type=text], textarea').each(function (e) {
var $this = $(this),
instanceOptions = $.extend(true, {}, _inlineComplete._defaultOptions, options);
if (instanceOptions.list.length == 0) {
if ($this.data('list')) {
if ($this.data('list').indexOf('list') === 0) {
instanceOptions.list = $this.data('list').replace(/^list:/i, '').split('|');
}
} else if(typeof $this.attr('list') != 'undefined') {
// HTML5 datalist
var $datalist = $('#' + $this.attr('list'));
if ($datalist.length > 0) {
if (_inlineComplete.dataListSupport) {
// Use JavaScript/DOM accessor when datalist element
// is supported by the browser.
var datalistOptions = $datalist.get(0).options;
for(var i in datalistOptions) {
if (datalistOptions[i].value) {
instanceOptions.list.push(datalistOptions[i].value);
}
}
} else {
// "Manually" access the value attribute if the
// browser doesn't support datalists.
instanceOptions.list = [];
$datalist.find('option').each(function() {
instanceOptions.list.push($this.attr('value'));
});
}
if (instanceOptions.disableDataList) {
$this.removeAttr('list');
}
}
}
}
var cleanList = [];
for(var i in instanceOptions.list) {
if (instanceOptions.list[i].replace(/\s*/, '') != '') {
cleanList.push(instanceOptions.list[i]);
}
}
instanceOptions.list = cleanList;
// Still no options? Get the hell out of here!
if (instanceOptions.list.length == 0) {
return true;
}
$this.on('keyup keydown', function (e) {
return _inlineComplete._performComplete($this, e, instanceOptions);
});
return true;
});
return this;
};
})(jQuery);
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