diff options
Diffstat (limited to 'library/jquery-textcomplete')
| -rw-r--r-- | library/jquery-textcomplete/LICENSE | 21 | ||||
| -rw-r--r-- | library/jquery-textcomplete/jquery.textcomplete.js | 1088 |
2 files changed, 1109 insertions, 0 deletions
diff --git a/library/jquery-textcomplete/LICENSE b/library/jquery-textcomplete/LICENSE new file mode 100644 index 000000000..4848bd637 --- /dev/null +++ b/library/jquery-textcomplete/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2013-2014 Yuku Takahashi + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. diff --git a/library/jquery-textcomplete/jquery.textcomplete.js b/library/jquery-textcomplete/jquery.textcomplete.js new file mode 100644 index 000000000..1e61683ea --- /dev/null +++ b/library/jquery-textcomplete/jquery.textcomplete.js @@ -0,0 +1,1088 @@ +/*! + * jQuery.textcomplete + * + * Repository: https://github.com/yuku-t/jquery-textcomplete + * License: MIT (https://github.com/yuku-t/jquery-textcomplete/blob/master/LICENSE) + * Author: Yuku Takahashi + */ + +if (typeof jQuery === 'undefined') { + throw new Error('jQuery.textcomplete requires jQuery'); +} + ++function ($) { + 'use strict'; + + var warn = function (message) { + if (console.warn) { console.warn(message); } + }; + + $.fn.textcomplete = function (strategies, option) { + var args = Array.prototype.slice.call(arguments); + return this.each(function () { + var $this = $(this); + var completer = $this.data('textComplete'); + if (!completer) { + completer = new $.fn.textcomplete.Completer(this, option || {}); + $this.data('textComplete', completer); + } + if (typeof strategies === 'string') { + if (!completer) return; + args.shift() + completer[strategies].apply(completer, args); + if (strategies === 'destroy') { + $this.removeData('textComplete'); + } + } else { + // For backward compatibility. + // TODO: Remove at v0.4 + $.each(strategies, function (obj) { + $.each(['header', 'footer', 'placement', 'maxCount'], function (name) { + if (obj[name]) { + completer.option[name] = obj[name]; + warn(name + 'as a strategy param is deprecated. Use option.'); + delete obj[name]; + } + }); + }); + completer.register($.fn.textcomplete.Strategy.parse(strategies)); + } + }); + }; + +}(jQuery); + ++function ($) { + 'use strict'; + + // Exclusive execution control utility. + // + // func - The function to be locked. It is executed with a function named + // `free` as the first argument. Once it is called, additional + // execution are ignored until the free is invoked. Then the last + // ignored execution will be replayed immediately. + // + // Examples + // + // var lockedFunc = lock(function (free) { + // setTimeout(function { free(); }, 1000); // It will be free in 1 sec. + // console.log('Hello, world'); + // }); + // lockedFunc(); // => 'Hello, world' + // lockedFunc(); // none + // lockedFunc(); // none + // // 1 sec past then + // // => 'Hello, world' + // lockedFunc(); // => 'Hello, world' + // lockedFunc(); // none + // + // Returns a wrapped function. + var lock = function (func) { + var locked, queuedArgsToReplay; + + return function () { + // Convert arguments into a real array. + var args = Array.prototype.slice.call(arguments); + if (locked) { + // Keep a copy of this argument list to replay later. + // OK to overwrite a previous value because we only replay + // the last one. + queuedArgsToReplay = args; + return; + } + locked = true; + var self = this; + args.unshift(function replayOrFree() { + if (queuedArgsToReplay) { + // Other request(s) arrived while we were locked. + // Now that the lock is becoming available, replay + // the latest such request, then call back here to + // unlock (or replay another request that arrived + // while this one was in flight). + var replayArgs = queuedArgsToReplay; + queuedArgsToReplay = undefined; + replayArgs.unshift(replayOrFree); + func.apply(self, replayArgs); + } else { + locked = false; + } + }); + func.apply(this, args); + }; + }; + + var isString = function (obj) { + return Object.prototype.toString.call(obj) === '[object String]'; + }; + + var uniqueId = 0; + + function Completer(element, option) { + this.$el = $(element); + this.id = 'textcomplete' + uniqueId++; + this.strategies = []; + this.views = []; + this.option = $.extend({}, Completer._getDefaults(), option); + + if (!this.$el.is('textarea') && !element.isContentEditable && element.contentEditable != 'true') { + throw new Error('textcomplete must be called on a Textarea or a ContentEditable.'); + } + + if (element === document.activeElement) { + // element has already been focused. Initialize view objects immediately. + this.initialize() + } else { + // Initialize view objects lazily. + var self = this; + this.$el.one('focus.' + this.id, function () { self.initialize(); }); + } + } + + Completer._getDefaults = function () { + if (!Completer.DEFAULTS) { + Completer.DEFAULTS = { + appendTo: $('body'), + zIndex: '100' + }; + } + + return Completer.DEFAULTS; + } + + $.extend(Completer.prototype, { + // Public properties + // ----------------- + + id: null, + option: null, + strategies: null, + adapter: null, + dropdown: null, + $el: null, + + // Public methods + // -------------- + + initialize: function () { + var element = this.$el.get(0); + // Initialize view objects. + this.dropdown = new $.fn.textcomplete.Dropdown(element, this, this.option); + var Adapter, viewName; + if (this.option.adapter) { + Adapter = this.option.adapter; + } else { + if (this.$el.is('textarea')) { + viewName = typeof element.selectionEnd === 'number' ? 'Textarea' : 'IETextarea'; + } else { + viewName = 'ContentEditable'; + } + Adapter = $.fn.textcomplete[viewName]; + } + this.adapter = new Adapter(element, this, this.option); + }, + + destroy: function () { + this.$el.off('.' + this.id); + if (this.adapter) { + this.adapter.destroy(); + } + if (this.dropdown) { + this.dropdown.destroy(); + } + this.$el = this.adapter = this.dropdown = null; + }, + + // Invoke textcomplete. + trigger: function (text, skipUnchangedTerm) { + if (!this.dropdown) { this.initialize(); } + text != null || (text = this.adapter.getTextFromHeadToCaret()); + var searchQuery = this._extractSearchQuery(text); + if (searchQuery.length) { + var term = searchQuery[1]; + // Ignore shift-key, ctrl-key and so on. + if (skipUnchangedTerm && this._term === term) { return; } + this._term = term; + this._search.apply(this, searchQuery); + } else { + this._term = null; + this.dropdown.deactivate(); + } + }, + + fire: function (eventName) { + var args = Array.prototype.slice.call(arguments, 1); + this.$el.trigger(eventName, args); + return this; + }, + + register: function (strategies) { + Array.prototype.push.apply(this.strategies, strategies); + }, + + // Insert the value into adapter view. It is called when the dropdown is clicked + // or selected. + // + // value - The selected element of the array callbacked from search func. + // strategy - The Strategy object. + select: function (value, strategy) { + this.adapter.select(value, strategy); + this.fire('change').fire('textComplete:select', value, strategy); + this.adapter.focus(); + }, + + // Private properties + // ------------------ + + _clearAtNext: true, + _term: null, + + // Private methods + // --------------- + + // Parse the given text and extract the first matching strategy. + // + // Returns an array including the strategy, the query term and the match + // object if the text matches an strategy; otherwise returns an empty array. + _extractSearchQuery: function (text) { + for (var i = 0; i < this.strategies.length; i++) { + var strategy = this.strategies[i]; + var context = strategy.context(text); + if (context || context === '') { + if (isString(context)) { text = context; } + var match = text.match(strategy.match); + if (match) { return [strategy, match[strategy.index], match]; } + } + } + return [] + }, + + // Call the search method of selected strategy.. + _search: lock(function (free, strategy, term, match) { + var self = this; + strategy.search(term, function (data, stillSearching) { + if (!self.dropdown.shown) { + self.dropdown.activate(); + self.dropdown.setPosition(self.adapter.getCaretPosition()); + } + if (self._clearAtNext) { + // The first callback in the current lock. + self.dropdown.clear(); + self._clearAtNext = false; + } + self.dropdown.render(self._zip(data, strategy)); + if (!stillSearching) { + // The last callback in the current lock. + free(); + self._clearAtNext = true; // Call dropdown.clear at the next time. + } + }, match); + }), + + // Build a parameter for Dropdown#render. + // + // Examples + // + // this._zip(['a', 'b'], 's'); + // //=> [{ value: 'a', strategy: 's' }, { value: 'b', strategy: 's' }] + _zip: function (data, strategy) { + return $.map(data, function (value) { + return { value: value, strategy: strategy }; + }); + } + }); + + $.fn.textcomplete.Completer = Completer; +}(jQuery); + ++function ($) { + 'use strict'; + + var include = function (zippedData, datum) { + var i, elem; + var idProperty = datum.strategy.idProperty + for (i = 0; i < zippedData.length; i++) { + elem = zippedData[i]; + if (elem.strategy !== datum.strategy) continue; + if (idProperty) { + if (elem.value[idProperty] === datum.value[idProperty]) return true; + } else { + if (elem.value === datum.value) return true; + } + } + return false; + }; + + var dropdownViews = {}; + $(document).on('click', function (e) { + var id = e.originalEvent && e.originalEvent.keepTextCompleteDropdown; + $.each(dropdownViews, function (key, view) { + if (key !== id) { view.deactivate(); } + }); + }); + + // Dropdown view + // ============= + + // Construct Dropdown object. + // + // element - Textarea or contenteditable element. + function Dropdown(element, completer, option) { + this.$el = Dropdown.findOrCreateElement(option); + this.completer = completer; + this.id = completer.id + 'dropdown'; + this._data = []; // zipped data. + this.$inputEl = $(element); + this.option = option; + + // Override setPosition method. + if (option.listPosition) { this.setPosition = option.listPosition; } + if (option.height) { this.$el.height(option.height); } + var self = this; + $.each(['maxCount', 'placement', 'footer', 'header', 'className'], function (_i, name) { + if (option[name] != null) { self[name] = option[name]; } + }); + this._bindEvents(element); + dropdownViews[this.id] = this; + } + + $.extend(Dropdown, { + // Class methods + // ------------- + + findOrCreateElement: function (option) { + var $parent = option.appendTo; + if (!($parent instanceof $)) { $parent = $($parent); } + var $el = $parent.children('.dropdown-menu') + if (!$el.length) { + $el = $('<ul class="dropdown-menu"></ul>').css({ + display: 'none', + left: 0, + position: 'absolute', + zIndex: option.zIndex + }).appendTo($parent); + } + return $el; + } + }); + + $.extend(Dropdown.prototype, { + // Public properties + // ----------------- + + $el: null, // jQuery object of ul.dropdown-menu element. + $inputEl: null, // jQuery object of target textarea. + completer: null, + footer: null, + header: null, + id: null, + maxCount: 10, + placement: '', + shown: false, + data: [], // Shown zipped data. + className: '', + + // Public methods + // -------------- + + destroy: function () { + // Don't remove $el because it may be shared by several textcompletes. + this.deactivate(); + + this.$el.off('.' + this.id); + this.$inputEl.off('.' + this.id); + this.clear(); + this.$el = this.$inputEl = this.completer = null; + delete dropdownViews[this.id] + }, + + render: function (zippedData) { + var contentsHtml = this._buildContents(zippedData); + var unzippedData = $.map(this.data, function (d) { return d.value; }); + if (this.data.length) { + this._renderHeader(unzippedData); + this._renderFooter(unzippedData); + if (contentsHtml) { + this._renderContents(contentsHtml); + this._activateIndexedItem(); + } + this._setScroll(); + } else if (this.shown) { + this.deactivate(); + } + }, + + setPosition: function (position) { + this.$el.css(this._applyPlacement(position)); + return this; + }, + + clear: function () { + this.$el.html(''); + this.data = []; + this._index = 0; + this._$header = this._$footer = null; + }, + + activate: function () { + if (!this.shown) { + this.clear(); + this.$el.show(); + if (this.className) { this.$el.addClass(this.className); } + this.completer.fire('textComplete:show'); + this.shown = true; + } + return this; + }, + + deactivate: function () { + if (this.shown) { + this.$el.hide(); + if (this.className) { this.$el.removeClass(this.className); } + this.completer.fire('textComplete:hide'); + this.shown = false; + } + return this; + }, + + isUp: function (e) { + return e.keyCode === 38 || (e.ctrlKey && e.keyCode === 80); // UP, Ctrl-P + }, + + isDown: function (e) { + return e.keyCode === 40 || (e.ctrlKey && e.keyCode === 78); // DOWN, Ctrl-N + }, + + isEnter: function (e) { + var modifiers = e.ctrlKey || e.altKey || e.metaKey || e.shiftKey; + return !modifiers && (e.keyCode === 13 || e.keyCode === 9 || (this.option.completeOnSpace === true && e.keyCode === 32)) // ENTER, TAB + }, + + isPageup: function (e) { + return e.keyCode === 33; // PAGEUP + }, + + isPagedown: function (e) { + return e.keyCode === 34; // PAGEDOWN + }, + + // Private properties + // ------------------ + + _data: null, // Currently shown zipped data. + _index: null, + _$header: null, + _$footer: null, + + // Private methods + // --------------- + + _bindEvents: function () { + this.$el.on('mousedown.' + this.id, '.textcomplete-item', $.proxy(this._onClick, this)) + this.$el.on('mouseover.' + this.id, '.textcomplete-item', $.proxy(this._onMouseover, this)); + this.$inputEl.on('keydown.' + this.id, $.proxy(this._onKeydown, this)); + }, + + _onClick: function (e) { + var $el = $(e.target); + e.preventDefault(); + e.originalEvent.keepTextCompleteDropdown = this.id; + if (!$el.hasClass('textcomplete-item')) { + $el = $el.closest('.textcomplete-item'); + } + var datum = this.data[parseInt($el.data('index'), 10)]; + this.completer.select(datum.value, datum.strategy); + var self = this; + // Deactive at next tick to allow other event handlers to know whether + // the dropdown has been shown or not. + setTimeout(function () { self.deactivate(); }, 0); + }, + + // Activate hovered item. + _onMouseover: function (e) { + var $el = $(e.target); + e.preventDefault(); + if (!$el.hasClass('textcomplete-item')) { + $el = $el.closest('.textcomplete-item'); + } + this._index = parseInt($el.data('index'), 10); + this._activateIndexedItem(); + }, + + _onKeydown: function (e) { + if (!this.shown) { return; } + if (this.isUp(e)) { + e.preventDefault(); + this._up(); + } else if (this.isDown(e)) { + e.preventDefault(); + this._down(); + } else if (this.isEnter(e)) { + e.preventDefault(); + this._enter(); + } else if (this.isPageup(e)) { + e.preventDefault(); + this._pageup(); + } else if (this.isPagedown(e)) { + e.preventDefault(); + this._pagedown(); + } + }, + + _up: function () { + if (this._index === 0) { + this._index = this.data.length - 1; + } else { + this._index -= 1; + } + this._activateIndexedItem(); + this._setScroll(); + }, + + _down: function () { + if (this._index === this.data.length - 1) { + this._index = 0; + } else { + this._index += 1; + } + this._activateIndexedItem(); + this._setScroll(); + }, + + _enter: function () { + var datum = this.data[parseInt(this._getActiveElement().data('index'), 10)]; + this.completer.select(datum.value, datum.strategy); + this._setScroll(); + }, + + _pageup: function () { + var target = 0; + var threshold = this._getActiveElement().position().top - this.$el.innerHeight(); + this.$el.children().each(function (i) { + if ($(this).position().top + $(this).outerHeight() > threshold) { + target = i; + return false; + } + }); + this._index = target; + this._activateIndexedItem(); + this._setScroll(); + }, + + _pagedown: function () { + var target = this.data.length - 1; + var threshold = this._getActiveElement().position().top + this.$el.innerHeight(); + this.$el.children().each(function (i) { + if ($(this).position().top > threshold) { + target = i; + return false + } + }); + this._index = target; + this._activateIndexedItem(); + this._setScroll(); + }, + + _activateIndexedItem: function () { + this.$el.find('.textcomplete-item.active').removeClass('active'); + this._getActiveElement().addClass('active'); + }, + + _getActiveElement: function () { + return this.$el.children('.textcomplete-item:nth(' + this._index + ')'); + }, + + _setScroll: function () { + var $activeEl = this._getActiveElement(); + var itemTop = $activeEl.position().top; + var itemHeight = $activeEl.outerHeight(); + var visibleHeight = this.$el.innerHeight(); + var visibleTop = this.$el.scrollTop(); + if (this._index === 0 || this._index == this.data.length - 1 || itemTop < 0) { + this.$el.scrollTop(itemTop + visibleTop); + } else if (itemTop + itemHeight > visibleHeight) { + this.$el.scrollTop(itemTop + itemHeight + visibleTop - visibleHeight); + } + }, + + _buildContents: function (zippedData) { + var datum, i, index; + var html = ''; + for (i = 0; i < zippedData.length; i++) { + if (this.data.length === this.maxCount) break; + datum = zippedData[i]; + if (include(this.data, datum)) { continue; } + index = this.data.length; + this.data.push(datum); + html += '<li class="textcomplete-item" data-index="' + index + '"><a>'; + html += datum.strategy.template(datum.value); + html += '</a></li>'; + } + return html; + }, + + _renderHeader: function (unzippedData) { + if (this.header) { + if (!this._$header) { + this._$header = $('<li class="textcomplete-header"></li>').prependTo(this.$el); + } + var html = $.isFunction(this.header) ? this.header(unzippedData) : this.header; + this._$header.html(html); + } + }, + + _renderFooter: function (unzippedData) { + if (this.footer) { + if (!this._$footer) { + this._$footer = $('<li class="textcomplete-footer"></li>').appendTo(this.$el); + } + var html = $.isFunction(this.footer) ? this.footer(unzippedData) : this.footer; + this._$footer.html(html); + } + }, + + _renderContents: function (html) { + if (this._$footer) { + this._$footer.before(html); + } else { + this.$el.append(html); + } + }, + + _applyPlacement: function (position) { + // If the 'placement' option set to 'top', move the position above the element. + if (this.placement.indexOf('top') !== -1) { + // Overwrite the position object to set the 'bottom' property instead of the top. + position = { + top: 'auto', + bottom: this.$el.parent().height() - position.top + position.lineHeight, + left: position.left + }; + } else { + position.bottom = 'auto'; + delete position.lineHeight; + } + if (this.placement.indexOf('absleft') !== -1) { + position.left = 0; + } else if (this.placement.indexOf('absright') !== -1) { + position.right = 0; + position.left = 'auto'; + } + return position; + } + }); + + $.fn.textcomplete.Dropdown = Dropdown; +}(jQuery); + ++function ($) { + 'use strict'; + + // Memoize a search function. + var memoize = function (func) { + var memo = {}; + return function (term, callback) { + if (memo[term]) { + callback(memo[term]); + } else { + func.call(this, term, function (data) { + memo[term] = (memo[term] || []).concat(data); + callback.apply(null, arguments); + }); + } + }; + }; + + function Strategy(options) { + $.extend(this, options); + if (this.cache) { this.search = memoize(this.search); } + } + + Strategy.parse = function (optionsArray) { + return $.map(optionsArray, function (options) { + return new Strategy(options); + }); + }; + + $.extend(Strategy.prototype, { + // Public properties + // ----------------- + + // Required + match: null, + replace: null, + search: null, + + // Optional + cache: false, + context: function () { return true; }, + index: 2, + template: function (obj) { return obj; }, + idProperty: null + }); + + $.fn.textcomplete.Strategy = Strategy; + +}(jQuery); + ++function ($) { + 'use strict'; + + var now = Date.now || function () { return new Date().getTime(); }; + + // Returns a function, that, as long as it continues to be invoked, will not + // be triggered. The function will be called after it stops being called for + // `wait` msec. + // + // This utility function was originally implemented at Underscore.js. + var debounce = function (func, wait) { + var timeout, args, context, timestamp, result; + var later = function () { + var last = now() - timestamp; + if (last < wait) { + timeout = setTimeout(later, wait - last); + } else { + timeout = null; + result = func.apply(context, args); + context = args = null; + } + }; + + return function () { + context = this; + args = arguments; + timestamp = now(); + if (!timeout) { + timeout = setTimeout(later, wait); + } + return result; + }; + }; + + function Adapter () {} + + $.extend(Adapter.prototype, { + // Public properties + // ----------------- + + id: null, // Identity. + completer: null, // Completer object which creates it. + el: null, // Textarea element. + $el: null, // jQuery object of the textarea. + option: null, + + // Public methods + // -------------- + + initialize: function (element, completer, option) { + this.el = element; + this.$el = $(element); + this.id = completer.id + this.constructor.name; + this.completer = completer; + this.option = option; + + if (this.option.debounce) { + this._onKeyup = debounce(this._onKeyup, this.option.debounce); + } + + this._bindEvents(); + }, + + destroy: function () { + this.$el.off('.' + this.id); // Remove all event handlers. + this.$el = this.el = this.completer = null; + }, + + // Update the element with the given value and strategy. + // + // value - The selected object. It is one of the item of the array + // which was callbacked from the search function. + // strategy - The Strategy associated with the selected value. + select: function (/* value, strategy */) { + throw new Error('Not implemented'); + }, + + // Returns the caret's relative coordinates from body's left top corner. + // + // FIXME: Calculate the left top corner of `this.option.appendTo` element. + getCaretPosition: function () { + var position = this._getCaretRelativePosition(); + var offset = this.$el.offset(); + position.top += offset.top; + position.left += offset.left; + return position; + }, + + // Focus on the element. + focus: function () { + this.$el.focus(); + }, + + // Private methods + // --------------- + + _bindEvents: function () { + this.$el.on('keyup.' + this.id, $.proxy(this._onKeyup, this)); + }, + + _onKeyup: function (e) { + if (this._skipSearch(e)) { return; } + this.completer.trigger(this.getTextFromHeadToCaret(), true); + }, + + // Suppress searching if it returns true. + _skipSearch: function (clickEvent) { + switch (clickEvent.keyCode) { + case 40: // DOWN + case 38: // UP + return true; + } + if (clickEvent.ctrlKey) switch (clickEvent.keyCode) { + case 78: // Ctrl-N + case 80: // Ctrl-P + return true; + } + } + }); + + $.fn.textcomplete.Adapter = Adapter; +}(jQuery); + ++function ($) { + 'use strict'; + + // Textarea adapter + // ================ + // + // Managing a textarea. It doesn't know a Dropdown. + function Textarea(element, completer, option) { + this.initialize(element, completer, option); + } + + Textarea.DIV_PROPERTIES = { + left: -9999, + position: 'absolute', + top: 0, + whiteSpace: 'pre-wrap' + } + + Textarea.COPY_PROPERTIES = [ + 'border-width', 'font-family', 'font-size', 'font-style', 'font-variant', + 'font-weight', 'height', 'letter-spacing', 'word-spacing', 'line-height', + 'text-decoration', 'text-align', 'width', 'padding-top', 'padding-right', + 'padding-bottom', 'padding-left', 'margin-top', 'margin-right', + 'margin-bottom', 'margin-left', 'border-style', 'box-sizing', 'tab-size' + ]; + + $.extend(Textarea.prototype, $.fn.textcomplete.Adapter.prototype, { + // Public methods + // -------------- + + // Update the textarea with the given value and strategy. + select: function (value, strategy) { + var pre = this.getTextFromHeadToCaret(); + var post = this.el.value.substring(this.el.selectionEnd); + var newSubstr = strategy.replace(value); + if ($.isArray(newSubstr)) { + post = newSubstr[1] + post; + newSubstr = newSubstr[0]; + } + pre = pre.replace(strategy.match, newSubstr); + this.$el.val(pre + post); + this.el.selectionStart = this.el.selectionEnd = pre.length; + }, + + // Private methods + // --------------- + + // Returns the caret's relative coordinates from textarea's left top corner. + // + // Browser native API does not provide the way to know the position of + // caret in pixels, so that here we use a kind of hack to accomplish + // the aim. First of all it puts a dummy div element and completely copies + // the textarea's style to the element, then it inserts the text and a + // span element into the textarea. + // Consequently, the span element's position is the thing what we want. + _getCaretRelativePosition: function () { + var dummyDiv = $('<div></div>').css(this._copyCss()) + .text(this.getTextFromHeadToCaret()); + var span = $('<span></span>').text('.').appendTo(dummyDiv); + this.$el.before(dummyDiv); + var position = span.position(); + position.top += span.height() - this.$el.scrollTop(); + position.lineHeight = span.height(); + dummyDiv.remove(); + return position; + }, + + _copyCss: function () { + return $.extend({ + // Set 'scroll' if a scrollbar is being shown; otherwise 'auto'. + overflow: this.el.scrollHeight > this.el.offsetHeight ? 'scroll' : 'auto' + }, Textarea.DIV_PROPERTIES, this._getStyles()); + }, + + _getStyles: (function ($) { + var color = $('<div></div>').css(['color']).color; + if (typeof color !== 'undefined') { + return function () { + return this.$el.css(Textarea.COPY_PROPERTIES); + }; + } else { // jQuery < 1.8 + return function () { + var $el = this.$el; + var styles = {}; + $.each(Textarea.COPY_PROPERTIES, function (i, property) { + styles[property] = $el.css(property); + }); + return styles; + }; + } + })($), + + getTextFromHeadToCaret: function () { + return this.el.value.substring(0, this.el.selectionEnd); + } + }); + + $.fn.textcomplete.Textarea = Textarea; +}(jQuery); + ++function ($) { + 'use strict'; + + var sentinelChar = '吶'; + + function IETextarea(element, completer, option) { + this.initialize(element, completer, option); + $('<span>' + sentinelChar + '</span>').css({ + position: 'absolute', + top: -9999, + left: -9999 + }).insertBefore(element); + } + + $.extend(IETextarea.prototype, $.fn.textcomplete.Textarea.prototype, { + // Public methods + // -------------- + + select: function (value, strategy) { + var pre = this.getTextFromHeadToCaret(); + var post = this.el.value.substring(pre.length); + var newSubstr = strategy.replace(value); + if ($.isArray(newSubstr)) { + post = newSubstr[1] + post; + newSubstr = newSubstr[0]; + } + pre = pre.replace(strategy.match, newSubstr); + this.$el.val(pre + post); + this.el.focus(); + var range = this.el.createTextRange(); + range.collapse(true); + range.moveEnd('character', pre.length); + range.moveStart('character', pre.length); + range.select(); + }, + + getTextFromHeadToCaret: function () { + this.el.focus(); + var range = document.selection.createRange(); + range.moveStart('character', -this.el.value.length); + var arr = range.text.split(sentinelChar) + return arr.length === 1 ? arr[0] : arr[1]; + } + }); + + $.fn.textcomplete.IETextarea = IETextarea; +}(jQuery); + +// NOTE: TextComplete plugin has contenteditable support but it does not work +// fine especially on old IEs. +// Any pull requests are REALLY welcome. + ++function ($) { + 'use strict'; + + // ContentEditable adapter + // ======================= + // + // Adapter for contenteditable elements. + function ContentEditable (element, completer, option) { + this.initialize(element, completer, option); + } + + $.extend(ContentEditable.prototype, $.fn.textcomplete.Adapter.prototype, { + // Public methods + // -------------- + + // Update the content with the given value and strategy. + // When an dropdown item is selected, it is executed. + select: function (value, strategy) { + var pre = this.getTextFromHeadToCaret(); + var sel = window.getSelection() + var range = sel.getRangeAt(0); + var selection = range.cloneRange(); + selection.selectNodeContents(range.startContainer); + var content = selection.toString(); + var post = content.substring(range.startOffset); + var newSubstr = strategy.replace(value); + if ($.isArray(newSubstr)) { + post = newSubstr[1] + post; + newSubstr = newSubstr[0]; + } + pre = pre.replace(strategy.match, newSubstr); + range.selectNodeContents(range.startContainer); + range.deleteContents(); + var node = document.createTextNode(pre + post); + range.insertNode(node); + range.setStart(node, pre.length); + range.collapse(true); + sel.removeAllRanges(); + sel.addRange(range); + }, + + // Private methods + // --------------- + + // Returns the caret's relative position from the contenteditable's + // left top corner. + // + // Examples + // + // this._getCaretRelativePosition() + // //=> { top: 18, left: 200, lineHeight: 16 } + // + // Dropdown's position will be decided using the result. + _getCaretRelativePosition: function () { + var range = window.getSelection().getRangeAt(0).cloneRange(); + var node = document.createElement('span'); + range.insertNode(node); + range.selectNodeContents(node); + range.deleteContents(); + var $node = $(node); + var position = $node.offset(); + position.left -= this.$el.offset().left; + position.top += $node.height() - this.$el.offset().top; + position.lineHeight = $node.height(); + var dir = this.$el.attr('dir') || this.$el.css('direction'); + if (dir === 'rtl') { position.left -= this.listView.$el.width(); } + return position; + }, + + // Returns the string between the first character and the caret. + // Completer will be triggered with the result for start autocompleting. + // + // Example + // + // // Suppose the html is '<b>hello</b> wor|ld' and | is the caret. + // this.getTextFromHeadToCaret() + // // => ' wor' // not '<b>hello</b> wor' + getTextFromHeadToCaret: function () { + var range = window.getSelection().getRangeAt(0); + var selection = range.cloneRange(); + selection.selectNodeContents(range.startContainer); + return selection.toString().substring(0, range.startOffset); + } + }); + + $.fn.textcomplete.ContentEditable = ContentEditable; +}(jQuery); |