+(function (factory) {
+ if (typeof define === 'function' && define.amd) {
+ // AMD. Register as an anonymous module.
+ define(['jquery'], factory);
+ } else if (typeof module === "object" && module.exports) {
+ var $ = require('jquery');
+ module.exports = factory($);
+ } else {
+ // Browser globals
+ factory(jQuery);
+ }
+}(function (jQuery) {
+
/*!
* jQuery.textcomplete
*
if (console.warn) { console.warn(message); }
};
+ var id = 1;
+
$.fn.textcomplete = function (strategies, option) {
var args = Array.prototype.slice.call(arguments);
return this.each(function () {
+ var self = this;
var $this = $(this);
var completer = $this.data('textComplete');
if (!completer) {
- completer = new $.fn.textcomplete.Completer(this, option || {});
+ option || (option = {});
+ option._oid = id++; // unique object id
+ completer = new $.fn.textcomplete.Completer(this, option);
$this.data('textComplete', completer);
}
if (typeof strategies === 'string') {
}
});
});
- completer.register($.fn.textcomplete.Strategy.parse(strategies));
+ completer.register($.fn.textcomplete.Strategy.parse(strategies, {
+ el: self,
+ $el: $this
+ }));
}
});
};
return Object.prototype.toString.call(obj) === '[object String]';
};
+ var isFunction = function (obj) {
+ return Object.prototype.toString.call(obj) === '[object Function]';
+ };
+
var uniqueId = 0;
function Completer(element, option) {
this.views = [];
this.option = $.extend({}, Completer._getDefaults(), option);
- if (!this.$el.is('input[type=text]') && !this.$el.is('textarea') && !element.isContentEditable && element.contentEditable != 'true') {
+ if (!this.$el.is('input[type=text]') && !this.$el.is('input[type=search]') && !this.$el.is('textarea') && !element.isContentEditable && element.contentEditable != 'true') {
throw new Error('textcomplete must be called on a Textarea or a ContentEditable.');
}
if (this.option.adapter) {
Adapter = this.option.adapter;
} else {
- if (this.$el.is('textarea') || this.$el.is('input[type=text]')) {
+ if (this.$el.is('textarea') || this.$el.is('input[type=text]') || this.$el.is('input[type=search]')) {
viewName = typeof element.selectionEnd === 'number' ? 'Textarea' : 'IETextarea';
} else {
viewName = 'ContentEditable';
this.$el = this.adapter = this.dropdown = null;
},
+ deactivate: function () {
+ if (this.dropdown) {
+ this.dropdown.deactivate();
+ }
+ },
+
// Invoke textcomplete.
trigger: function (text, skipUnchangedTerm) {
if (!this.dropdown) { this.initialize(); }
if (searchQuery.length) {
var term = searchQuery[1];
// Ignore shift-key, ctrl-key and so on.
- if (skipUnchangedTerm && this._term === term) { return; }
+ if (skipUnchangedTerm && this._term === term && term !== "") { return; }
this._term = term;
this._search.apply(this, searchQuery);
} else {
//
// value - The selected element of the array callbacked from search func.
// strategy - The Strategy object.
- select: function (value, strategy) {
- this.adapter.select(value, strategy);
+ // e - Click or keydown event object.
+ select: function (value, strategy, e) {
+ this._term = null;
+ this.adapter.select(value, strategy, e);
this.fire('change').fire('textComplete:select', value, strategy);
this.adapter.focus();
},
var strategy = this.strategies[i];
var context = strategy.context(text);
if (context || context === '') {
+ var matchRegexp = isFunction(strategy.match) ? strategy.match(text) : strategy.match;
if (isString(context)) { text = context; }
- var match = text.match(strategy.match);
+ var match = text.match(matchRegexp);
if (match) { return [strategy, match[strategy.index], match]; }
}
}
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));
+ self.dropdown.setPosition(self.adapter.getCaretPosition());
+ self.dropdown.render(self._zip(data, strategy, term));
if (!stillSearching) {
// The last callback in the current lock.
free();
//
// this._zip(['a', 'b'], 's');
// //=> [{ value: 'a', strategy: 's' }, { value: 'b', strategy: 's' }]
- _zip: function (data, strategy) {
+ _zip: function (data, strategy, term) {
return $.map(data, function (value) {
- return { value: value, strategy: strategy };
+ return { value: value, strategy: strategy, term: term };
});
}
});
+function ($) {
'use strict';
+ var $window = $(window);
+
var include = function (zippedData, datum) {
var i, elem;
var idProperty = datum.strategy.idProperty
});
});
+ var commands = {
+ SKIP_DEFAULT: 0,
+ KEY_UP: 1,
+ KEY_DOWN: 2,
+ KEY_ENTER: 3,
+ KEY_PAGEUP: 4,
+ KEY_PAGEDOWN: 5,
+ KEY_ESCAPE: 6
+ };
+
// Dropdown view
// =============
//
// element - Textarea or contenteditable element.
function Dropdown(element, completer, option) {
- this.$el = Dropdown.findOrCreateElement(option);
+ this.$el = Dropdown.createElement(option);
this.completer = completer;
this.id = completer.id + 'dropdown';
this._data = []; // zipped data.
if (option.listPosition) { this.setPosition = option.listPosition; }
if (option.height) { this.$el.height(option.height); }
var self = this;
- $.each(['maxCount', 'placement', 'footer', 'header', 'className'], function (_i, name) {
+ $.each(['maxCount', 'placement', 'footer', 'header', 'noResultsMessage', 'className'], function (_i, name) {
if (option[name] != null) { self[name] = option[name]; }
});
this._bindEvents(element);
// Class methods
// -------------
- findOrCreateElement: function (option) {
+ createElement: 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({
+ var $el = $('<ul></ul>')
+ .addClass('dropdown-menu textcomplete-dropdown')
+ .attr('id', 'textcomplete-dropdown-' + option._oid)
+ .css({
display: 'none',
left: 0,
position: 'absolute',
zIndex: option.zIndex
- }).appendTo($parent);
- }
+ })
+ .appendTo($parent);
return $el;
}
});
this.$el.off('.' + this.id);
this.$inputEl.off('.' + this.id);
this.clear();
+ this.$el.remove();
this.$el = this.$inputEl = this.completer = null;
delete dropdownViews[this.id]
},
var contentsHtml = this._buildContents(zippedData);
var unzippedData = $.map(this.data, function (d) { return d.value; });
if (this.data.length) {
+ var strategy = zippedData[0].strategy;
+ if (strategy.id) {
+ this.$el.attr('data-strategy', strategy.id);
+ } else {
+ this.$el.removeAttr('data-strategy');
+ }
this._renderHeader(unzippedData);
this._renderFooter(unzippedData);
if (contentsHtml) {
this._renderContents(contentsHtml);
+ this._fitToBottom();
+ this._fitToRight();
this._activateIndexedItem();
}
this._setScroll();
+ } else if (this.noResultsMessage) {
+ this._renderNoResultsMessage(unzippedData);
} else if (this.shown) {
this.deactivate();
}
},
- setPosition: function (position) {
- this.$el.css(this._applyPlacement(position));
-
+ setPosition: function (pos) {
// Make the dropdown fixed if the input is also fixed
// This can't be done during init, as textcomplete may be used on multiple elements on the same page
// Because the same dropdown is reused behind the scenes, we need to recheck every time the dropdown is showed
var position = 'absolute';
// Check if input or one of its parents has positioning we need to care about
- this.$inputEl.add(this.$inputEl.parents()).each(function() {
+ this.$inputEl.add(this.$inputEl.parents()).each(function() {
if($(this).css('position') === 'absolute') // The element has absolute positioning, so it's all OK
return false;
if($(this).css('position') === 'fixed') {
+ pos.top -= $window.scrollTop();
+ pos.left -= $window.scrollLeft();
position = 'fixed';
return false;
}
});
+ this.$el.css(this._applyPlacement(pos));
this.$el.css({ position: position }); // Update positioning
return this;
this.$el.html('');
this.data = [];
this._index = 0;
- this._$header = this._$footer = null;
+ this._$header = this._$footer = this._$noResultsMessage = null;
},
activate: function () {
return e.keyCode === 34; // PAGEDOWN
},
+ isEscape: function (e) {
+ return e.keyCode === 27; // ESCAPE
+ },
+
// Private properties
// ------------------
_data: null, // Currently shown zipped data.
_index: null,
_$header: null,
+ _$noResultsMessage: null,
_$footer: null,
// Private methods
// ---------------
_bindEvents: function () {
- this.$el.on('mousedown.' + this.id, '.textcomplete-item', $.proxy(this._onClick, this))
+ this.$el.on('mousedown.' + this.id, '.textcomplete-item', $.proxy(this._onClick, this));
+ this.$el.on('touchstart.' + 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));
},
$el = $el.closest('.textcomplete-item');
}
var datum = this.data[parseInt($el.data('index'), 10)];
- this.completer.select(datum.value, datum.strategy);
+ this.completer.select(datum.value, datum.strategy, e);
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);
+ setTimeout(function () {
+ self.deactivate();
+ if (e.type === 'touchstart') {
+ self.$inputEl.focus();
+ }
+ }, 0);
},
// Activate hovered item.
_onKeydown: function (e) {
if (!this.shown) { return; }
+
+ var command;
+
+ if ($.isFunction(this.option.onKeydown)) {
+ command = this.option.onKeydown(e, commands);
+ }
+
+ if (command == null) {
+ command = this._defaultKeydown(e);
+ }
+
+ switch (command) {
+ case commands.KEY_UP:
+ e.preventDefault();
+ this._up();
+ break;
+ case commands.KEY_DOWN:
+ e.preventDefault();
+ this._down();
+ break;
+ case commands.KEY_ENTER:
+ e.preventDefault();
+ this._enter(e);
+ break;
+ case commands.KEY_PAGEUP:
+ e.preventDefault();
+ this._pageup();
+ break;
+ case commands.KEY_PAGEDOWN:
+ e.preventDefault();
+ this._pagedown();
+ break;
+ case commands.KEY_ESCAPE:
+ e.preventDefault();
+ this.deactivate();
+ break;
+ }
+ },
+
+ _defaultKeydown: function (e) {
if (this.isUp(e)) {
- e.preventDefault();
- this._up();
+ return commands.KEY_UP;
} else if (this.isDown(e)) {
- e.preventDefault();
- this._down();
+ return commands.KEY_DOWN;
} else if (this.isEnter(e)) {
- e.preventDefault();
- this._enter();
+ return commands.KEY_ENTER;
} else if (this.isPageup(e)) {
- e.preventDefault();
- this._pageup();
+ return commands.KEY_PAGEUP;
} else if (this.isPagedown(e)) {
- e.preventDefault();
- this._pagedown();
+ return commands.KEY_PAGEDOWN;
+ } else if (this.isEscape(e)) {
+ return commands.KEY_ESCAPE;
}
},
this._setScroll();
},
- _enter: function () {
+ _enter: function (e) {
var datum = this.data[parseInt(this._getActiveElement().data('index'), 10)];
- this.completer.select(datum.value, datum.strategy);
- this._setScroll();
+ this.completer.select(datum.value, datum.strategy, e);
+ this.deactivate();
},
_pageup: function () {
index = this.data.length;
this.data.push(datum);
html += '<li class="textcomplete-item" data-index="' + index + '"><a>';
- html += datum.strategy.template(datum.value);
+ html += datum.strategy.template(datum.value, datum.term);
html += '</a></li>';
}
return html;
}
},
+ _renderNoResultsMessage: function (unzippedData) {
+ if (this.noResultsMessage) {
+ if (!this._$noResultsMessage) {
+ this._$noResultsMessage = $('<li class="textcomplete-no-results-message"></li>').appendTo(this.$el);
+ }
+ var html = $.isFunction(this.noResultsMessage) ? this.noResultsMessage(unzippedData) : this.noResultsMessage;
+ this._$noResultsMessage.html(html);
+ }
+ },
+
_renderContents: function (html) {
if (this._$footer) {
this._$footer.before(html);
}
},
- _applyPlacement: function (position) {
+ _fitToBottom: function() {
+ var windowScrollBottom = $window.scrollTop() + $window.height();
+ var height = this.$el.height();
+ if ((this.$el.position().top + height) > windowScrollBottom) {
+ this.$el.offset({top: windowScrollBottom - height});
+ }
+ },
+
+ _fitToRight: function() {
+ // We don't know how wide our content is until the browser positions us, and at that point it clips us
+ // to the document width so we don't know if we would have overrun it. As a heuristic to avoid that clipping
+ // (which makes our elements wrap onto the next line and corrupt the next item), if we're close to the right
+ // edge, move left. We don't know how far to move left, so just keep nudging a bit.
+ var tolerance = 30; // pixels. Make wider than vertical scrollbar because we might not be able to use that space.
+ var lastOffset = this.$el.offset().left, offset;
+ var width = this.$el.width();
+ var maxLeft = $window.width() - tolerance;
+ while (lastOffset + width > maxLeft) {
+ this.$el.offset({left: lastOffset - tolerance});
+ offset = this.$el.offset().left;
+ if (offset >= lastOffset) { break; }
+ lastOffset = offset;
+ }
+ },
+
+ _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.
});
$.fn.textcomplete.Dropdown = Dropdown;
+ $.extend($.fn.textcomplete, commands);
}(jQuery);
+function ($) {
if (this.cache) { this.search = memoize(this.search); }
}
- Strategy.parse = function (optionsArray) {
- return $.map(optionsArray, function (options) {
- return new Strategy(options);
+ Strategy.parse = function (strategiesArray, params) {
+ return $.map(strategiesArray, function (strategy) {
+ var strategyObj = new Strategy(strategy);
+ strategyObj.el = params.el;
+ strategyObj.$el = params.$el;
+ return strategyObj;
});
};
search: null,
// Optional
+ id: null,
cache: false,
context: function () { return true; },
index: 2,
},
// Returns the caret's relative coordinates from body's left top corner.
- //
- // FIXME: Calculate the left top corner of `this.option.appendTo` element.
getCaretPosition: function () {
var position = this._getCaretRelativePosition();
var offset = this.$el.offset();
+
+ // Calculate the left top corner of `this.option.appendTo` element.
+ var $parent = this.option.appendTo;
+ if ($parent) {
+ if (!($parent instanceof $)) { $parent = $($parent); }
+ var parentOffset = $parent.offsetParent().offset();
+ offset.top -= parentOffset.top;
+ offset.left -= parentOffset.left;
+ }
+
position.top += offset.top;
position.left += offset.left;
return position;
// Suppress searching if it returns true.
_skipSearch: function (clickEvent) {
switch (clickEvent.keyCode) {
+ case 9: // TAB
+ case 13: // ENTER
case 40: // DOWN
case 38: // UP
return true;
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, $.fn.textcomplete.Adapter.prototype, {
// Public methods
// --------------
// Update the textarea with the given value and strategy.
- select: function (value, strategy) {
+ select: function (value, strategy, e) {
var pre = this.getTextFromHeadToCaret();
var post = this.el.value.substring(this.el.selectionEnd);
- var newSubstr = strategy.replace(value);
- if ($.isArray(newSubstr)) {
- post = newSubstr[1] + post;
- newSubstr = newSubstr[0];
+ var newSubstr = strategy.replace(value, e);
+ if (typeof newSubstr !== 'undefined') {
+ 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;
}
- pre = pre.replace(strategy.match, newSubstr);
- this.$el.val(pre + post);
- this.el.selectionStart = this.el.selectionEnd = pre.length;
+ },
+
+ getTextFromHeadToCaret: function () {
+ return this.el.value.substring(0, this.el.selectionEnd);
},
// 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());
+ var p = $.fn.textcomplete.getCaretCoordinates(this.el, this.el.selectionStart);
+ return {
+ top: p.top + this._calculateLineHeight() - this.$el.scrollTop(),
+ left: p.left - this.$el.scrollLeft()
+ };
},
- _getStyles: (function ($) {
- 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] = $el.css(property);
- });
- return styles;
- };
+ _calculateLineHeight: function () {
+ var lineHeight = parseInt(this.$el.css('line-height'), 10);
+ if (isNaN(lineHeight)) {
+ // http://stackoverflow.com/a/4515470/1297336
+ var parentNode = this.el.parentNode;
+ var temp = document.createElement(this.el.nodeName);
+ var style = this.el.style;
+ temp.setAttribute(
+ 'style',
+ 'margin:0px;padding:0px;font-family:' + style.fontFamily + ';font-size:' + style.fontSize
+ );
+ temp.innerHTML = 'test';
+ parentNode.appendChild(temp);
+ lineHeight = temp.clientHeight;
+ parentNode.removeChild(temp);
}
- })($),
-
- getTextFromHeadToCaret: function () {
- return this.el.value.substring(0, this.el.selectionEnd);
+ return lineHeight;
}
});
// Public methods
// --------------
- select: function (value, strategy) {
+ select: function (value, strategy, e) {
var pre = this.getTextFromHeadToCaret();
var post = this.el.value.substring(pre.length);
- var newSubstr = strategy.replace(value);
- if ($.isArray(newSubstr)) {
- post = newSubstr[1] + post;
- newSubstr = newSubstr[0];
+ var newSubstr = strategy.replace(value, e);
+ if (typeof newSubstr !== 'undefined') {
+ 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();
}
- pre = pre.replace(strategy.match, newSubstr);
- this.$el.val(pre + post);
- this.el.focus();
- var range = this.el.createTextRange();
- range.collapse(true);
- range.moveEnd('character', pre.length);
- range.moveStart('character', pre.length);
- range.select();
},
getTextFromHeadToCaret: function () {
// Update the content with the given value and strategy.
// When an dropdown item is selected, it is executed.
- select: function (value, strategy) {
+ select: function (value, strategy, e) {
var pre = this.getTextFromHeadToCaret();
var sel = window.getSelection()
var range = sel.getRangeAt(0);
selection.selectNodeContents(range.startContainer);
var content = selection.toString();
var post = content.substring(range.startOffset);
- var newSubstr = strategy.replace(value);
- if ($.isArray(newSubstr)) {
- post = newSubstr[1] + post;
- newSubstr = newSubstr[0];
+ var newSubstr = strategy.replace(value, e);
+ if (typeof newSubstr !== 'undefined') {
+ if ($.isArray(newSubstr)) {
+ post = newSubstr[1] + post;
+ newSubstr = newSubstr[0];
+ }
+ pre = pre.replace(strategy.match, newSubstr);
+ range.selectNodeContents(range.startContainer);
+ range.deleteContents();
+
+ // create temporary elements
+ var preWrapper = document.createElement("div");
+ preWrapper.innerHTML = pre;
+ var postWrapper = document.createElement("div");
+ postWrapper.innerHTML = post;
+
+ // create the fragment thats inserted
+ var fragment = document.createDocumentFragment();
+ var childNode;
+ var lastOfPre;
+ while (childNode = preWrapper.firstChild) {
+ lastOfPre = fragment.appendChild(childNode);
+ }
+ while (childNode = postWrapper.firstChild) {
+ fragment.appendChild(childNode);
+ }
+
+ // insert the fragment & jump behind the last node in "pre"
+ range.insertNode(fragment);
+ range.setStartAfter(lastOfPre);
+
+ range.collapse(true);
+ sel.removeAllRanges();
+ sel.addRange(range);
}
- pre = pre.replace(strategy.match, newSubstr);
- range.selectNodeContents(range.startContainer);
- range.deleteContents();
- var node = document.createTextNode(pre + post);
- range.insertNode(node);
- range.setStart(node, pre.length);
- range.collapse(true);
- sel.removeAllRanges();
- sel.addRange(range);
},
// Private methods
position.left -= this.$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(); }
+ $node.remove();
return position;
},
$.fn.textcomplete.ContentEditable = ContentEditable;
}(jQuery);
+
+// The MIT License (MIT)
+//
+// Copyright (c) 2015 Jonathan Ong me@jongleberry.com
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
+// associated documentation files (the "Software"), to deal in the Software without restriction,
+// including without limitation the rights to use, copy, modify, merge, publish, distribute,
+// sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all copies or
+// substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
+// NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+// https://github.com/component/textarea-caret-position
+
+(function ($) {
+
+// The properties that we copy into a mirrored div.
+// Note that some browsers, such as Firefox,
+// do not concatenate properties, i.e. padding-top, bottom etc. -> padding,
+// so we have to do every single property specifically.
+var properties = [
+ 'direction', // RTL support
+ 'boxSizing',
+ 'width', // on Chrome and IE, exclude the scrollbar, so the mirror div wraps exactly as the textarea does
+ 'height',
+ 'overflowX',
+ 'overflowY', // copy the scrollbar for IE
+
+ 'borderTopWidth',
+ 'borderRightWidth',
+ 'borderBottomWidth',
+ 'borderLeftWidth',
+ 'borderStyle',
+
+ 'paddingTop',
+ 'paddingRight',
+ 'paddingBottom',
+ 'paddingLeft',
+
+ // https://developer.mozilla.org/en-US/docs/Web/CSS/font
+ 'fontStyle',
+ 'fontVariant',
+ 'fontWeight',
+ 'fontStretch',
+ 'fontSize',
+ 'fontSizeAdjust',
+ 'lineHeight',
+ 'fontFamily',
+
+ 'textAlign',
+ 'textTransform',
+ 'textIndent',
+ 'textDecoration', // might not make a difference, but better be safe
+
+ 'letterSpacing',
+ 'wordSpacing',
+
+ 'tabSize',
+ 'MozTabSize'
+
+];
+
+var isBrowser = (typeof window !== 'undefined');
+var isFirefox = (isBrowser && window.mozInnerScreenX != null);
+
+function getCaretCoordinates(element, position, options) {
+ if(!isBrowser) {
+ throw new Error('textarea-caret-position#getCaretCoordinates should only be called in a browser');
+ }
+
+ var debug = options && options.debug || false;
+ if (debug) {
+ var el = document.querySelector('#input-textarea-caret-position-mirror-div');
+ if ( el ) { el.parentNode.removeChild(el); }
+ }
+
+ // mirrored div
+ var div = document.createElement('div');
+ div.id = 'input-textarea-caret-position-mirror-div';
+ document.body.appendChild(div);
+
+ var style = div.style;
+ var computed = window.getComputedStyle? getComputedStyle(element) : element.currentStyle; // currentStyle for IE < 9
+
+ // default textarea styles
+ style.whiteSpace = 'pre-wrap';
+ if (element.nodeName !== 'INPUT')
+ style.wordWrap = 'break-word'; // only for textarea-s
+
+ // position off-screen
+ style.position = 'absolute'; // required to return coordinates properly
+ if (!debug)
+ style.visibility = 'hidden'; // not 'display: none' because we want rendering
+
+ // transfer the element's properties to the div
+ properties.forEach(function (prop) {
+ style[prop] = computed[prop];
+ });
+
+ if (isFirefox) {
+ // Firefox lies about the overflow property for textareas: https://bugzilla.mozilla.org/show_bug.cgi?id=984275
+ if (element.scrollHeight > parseInt(computed.height))
+ style.overflowY = 'scroll';
+ } else {
+ style.overflow = 'hidden'; // for Chrome to not render a scrollbar; IE keeps overflowY = 'scroll'
+ }
+
+ div.textContent = element.value.substring(0, position);
+ // the second special handling for input type="text" vs textarea: spaces need to be replaced with non-breaking spaces - http://stackoverflow.com/a/13402035/1269037
+ if (element.nodeName === 'INPUT')
+ div.textContent = div.textContent.replace(/\s/g, '\u00a0');
+
+ var span = document.createElement('span');
+ // Wrapping must be replicated *exactly*, including when a long word gets
+ // onto the next line, with whitespace at the end of the line before (#7).
+ // The *only* reliable way to do that is to copy the *entire* rest of the
+ // textarea's content into the <span> created at the caret position.
+ // for inputs, just '.' would be enough, but why bother?
+ span.textContent = element.value.substring(position) || '.'; // || because a completely empty faux span doesn't render at all
+ div.appendChild(span);
+
+ var coordinates = {
+ top: span.offsetTop + parseInt(computed['borderTopWidth']),
+ left: span.offsetLeft + parseInt(computed['borderLeftWidth'])
+ };
+
+ if (debug) {
+ span.style.backgroundColor = '#aaa';
+ } else {
+ document.body.removeChild(div);
+ }
+
+ return coordinates;
+}
+
+$.fn.textcomplete.getCaretCoordinates = getCaretCoordinates;
+
+}(jQuery));
+
+return jQuery;
+}));
projects / friendica.git / blobdiff