mirror of https://github.com/zulip/zulip.git
[third] Upgrade jquery.autosize.js from 1.13 to 1.17.7
(imported from commit c6a3a911b4481a53000b3f937ea5a3b85a5be8d2)
This commit is contained in:
Steve Howell
parent
f666e168e1
commit
7d3dfff9c7
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@ -1,44 +1,31 @@
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/** @preserve
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Software from "Autosize 1.13", a jQuery plugin for textareas, is
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Copyright (c) 2012 Jack Moore and is provided under the following license:
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--
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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--
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/*!
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Autosize v1.17.7 - 2013-09-03
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Automatically adjust textarea height based on user input.
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(c) 2013 Jack Moore - http://www.jacklmoore.com/autosize
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license: http://www.opensource.org/licenses/mit-license.php
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*/
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// Autosize 1.13 - jQuery plugin for textareas
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// (c) 2012 Jack Moore - jacklmoore.com
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// license: www.opensource.org/licenses/mit-license.php
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(function ($) {
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(function (factory) {
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if (typeof define === 'function' && define.amd) {
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// AMD. Register as an anonymous module.
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define(['jquery'], factory);
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} else {
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// Browser globals: jQuery or jQuery-like library, such as Zepto
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factory(window.jQuery || window.$);
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}
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}(function ($) {
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var
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defaults = {
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className: 'autosizejs',
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append: "",
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callback: false
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append: '',
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callback: false,
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resizeDelay: 10
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},
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hidden = 'hidden',
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borderBox = 'border-box',
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lineHeight = 'lineHeight',
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copy = '<textarea tabindex="-1" style="position:absolute; top:-9999px; left:-9999px; right:auto; bottom:auto; -moz-box-sizing:content-box; -webkit-box-sizing:content-box; box-sizing:content-box; word-wrap:break-word; height:0 !important; min-height:0 !important; overflow:hidden;"/>',
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// line-height is omitted because IE7/IE8 doesn't return the correct value.
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copyStyle = [
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// border:0 is unnecessary, but avoids a bug in FireFox on OSX
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copy = '<textarea tabindex="-1" style="position:absolute; top:-999px; left:0; right:auto; bottom:auto; border:0; padding: 0; -moz-box-sizing:content-box; -webkit-box-sizing:content-box; box-sizing:content-box; word-wrap:break-word; height:0 !important; min-height:0 !important; overflow:hidden; transition:none; -webkit-transition:none; -moz-transition:none;"/>',
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// line-height is conditionally included because IE7/IE8/old Opera do not return the correct value.
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typographyStyles = [
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'fontFamily',
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'fontSize',
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'fontWeight',
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@ -48,157 +35,220 @@
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'wordSpacing',
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'textIndent'
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],
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oninput = 'oninput',
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onpropertychange = 'onpropertychange',
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test = $(copy)[0];
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// For testing support in old FireFox
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test.setAttribute(oninput, "return");
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// to keep track which textarea is being mirrored when adjust() is called.
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mirrored,
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if ($.isFunction(test[oninput]) || onpropertychange in test) {
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// the mirror element, which is used to calculate what size the mirrored element should be.
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mirror = $(copy).data('autosize', true)[0];
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// test that line-height can be accurately copied to avoid
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// incorrect value reporting in old IE and old Opera
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$(test).css(lineHeight, '99px');
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if ($(test).css(lineHeight) === '99px') {
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copyStyle.push(lineHeight);
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// test that line-height can be accurately copied.
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mirror.style.lineHeight = '99px';
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if ($(mirror).css('lineHeight') === '99px') {
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typographyStyles.push('lineHeight');
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}
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mirror.style.lineHeight = '';
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$.fn.autosize = function (options) {
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options = $.extend({}, defaults, options || {});
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if (mirror.parentNode !== document.body) {
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$(document.body).append(mirror);
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}
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return this.each(function () {
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var
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ta = this,
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$ta = $(ta),
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mirror,
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minHeight = $ta.height(),
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maxHeight = parseInt($ta.css('maxHeight'), 10),
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active,
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i = copyStyle.length,
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resize,
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maxHeight,
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minHeight,
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boxOffset = 0,
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value = ta.value,
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callback = $.isFunction(options.callback);
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callback = $.isFunction(options.callback),
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originalStyles = {
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height: ta.style.height,
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overflow: ta.style.overflow,
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overflowY: ta.style.overflowY,
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wordWrap: ta.style.wordWrap,
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resize: ta.style.resize
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},
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timeout,
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width = $ta.width();
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if ($ta.css('box-sizing') === borderBox || $ta.css('-moz-box-sizing') === borderBox || $ta.css('-webkit-box-sizing') === borderBox){
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if ($ta.data('autosize')) {
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// exit if autosize has already been applied, or if the textarea is the mirror element.
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return;
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}
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$ta.data('autosize', true);
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if ($ta.css('box-sizing') === 'border-box' || $ta.css('-moz-box-sizing') === 'border-box' || $ta.css('-webkit-box-sizing') === 'border-box'){
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boxOffset = $ta.outerHeight() - $ta.height();
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}
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if ($ta.data('mirror') || $ta.data('ismirror')) {
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// if autosize has already been applied, exit.
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// if autosize is being applied to a mirror element, exit.
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return;
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} else {
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mirror = $(copy).data('ismirror', true).addClass(options.className)[0];
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// IE8 and lower return 'auto', which parses to NaN, if no min-height is set.
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minHeight = Math.max(parseInt($ta.css('minHeight'), 10) - boxOffset || 0, $ta.height());
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resize = $ta.css('resize') === 'none' ? 'none' : 'horizontal';
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$ta.data('mirror', $(mirror)).css({
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overflow: hidden,
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overflowY: hidden,
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wordWrap: 'break-word',
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resize: resize
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$ta.css({
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overflow: 'hidden',
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overflowY: 'hidden',
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wordWrap: 'break-word', // horizontal overflow is hidden, so break-word is necessary for handling words longer than the textarea width
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resize: ($ta.css('resize') === 'none' || $ta.css('resize') === 'vertical') ? 'none' : 'horizontal'
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});
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// The mirror width must exactly match the textarea width, so using getBoundingClientRect because it doesn't round the sub-pixel value.
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function setWidth() {
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var style, width;
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if ('getComputedStyle' in window) {
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style = window.getComputedStyle(ta);
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width = ta.getBoundingClientRect().width;
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$.each(['paddingLeft', 'paddingRight', 'borderLeftWidth', 'borderRightWidth'], function(i,val){
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width -= parseInt(style[val],10);
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});
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mirror.style.width = width + 'px';
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}
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// Opera returns '-1px' when max-height is set to 'none'.
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maxHeight = maxHeight && maxHeight > 0 ? maxHeight : 9e4;
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// Using mainly bare JS in this function because it is going
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// to fire very often while typing, and needs to very efficient.
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function adjust() {
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var height, overflow, original;
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// the active flag keeps IE from tripping all over itself. Otherwise
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// actions in the adjust function will cause IE to call adjust again.
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if (!active) {
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active = true;
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mirror.value = ta.value + options.append;
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mirror.style.overflowY = ta.style.overflowY;
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original = parseInt(ta.style.height,10);
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// Update the width in case the original textarea width has changed
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mirror.style.width = $ta.css('width');
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// Needed for IE to reliably return the correct scrollHeight
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mirror.scrollTop = 0;
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// Set a very high value for scrollTop to be sure the
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// mirror is scrolled all the way to the bottom.
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mirror.scrollTop = 9e4;
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height = mirror.scrollTop;
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overflow = hidden;
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if (height > maxHeight) {
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height = maxHeight;
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overflow = 'scroll';
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} else if (height < minHeight) {
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height = minHeight;
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}
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height += boxOffset;
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ta.style.overflowY = overflow;
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if (original !== height) {
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ta.style.height = height + 'px';
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if (callback) {
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options.callback.call(ta);
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else {
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// window.getComputedStyle, getBoundingClientRect returning a width are unsupported and unneeded in IE8 and lower.
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mirror.style.width = Math.max($ta.width(), 0) + 'px';
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}
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}
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// This small timeout gives IE a chance to draw it's scrollbar
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// before adjust can be run again (prevents an infinite loop).
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setTimeout(function () {
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active = false;
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}, 1);
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}
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}
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function initMirror() {
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var styles = {};
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mirrored = ta;
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mirror.className = options.className;
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maxHeight = parseInt($ta.css('maxHeight'), 10);
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// mirror is a duplicate textarea located off-screen that
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// is automatically updated to contain the same text as the
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// original textarea. mirror always has a height of 0.
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// This gives a cross-browser supported way getting the actual
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// height of the text, through the scrollTop property.
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while (i--) {
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mirror.style[copyStyle[i]] = $ta.css(copyStyle[i]);
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$.each(typographyStyles, function(i,val){
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styles[val] = $ta.css(val);
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});
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$(mirror).css(styles);
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setWidth();
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// Chrome-specific fix:
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// When the textarea y-overflow is hidden, Chrome doesn't reflow the text to account for the space
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// made available by removing the scrollbar. This workaround triggers the reflow for Chrome.
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if (window.chrome) {
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var width = ta.style.width;
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ta.style.width = '0px';
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var ignore = ta.offsetWidth;
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ta.style.width = width;
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}
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}
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$('body').append(mirror);
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// Using mainly bare JS in this function because it is going
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// to fire very often while typing, and needs to very efficient.
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function adjust() {
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var height, original;
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if (onpropertychange in ta) {
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if (oninput in ta) {
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if (mirrored !== ta) {
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initMirror();
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} else {
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setWidth();
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}
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mirror.value = ta.value + options.append;
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mirror.style.overflowY = ta.style.overflowY;
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original = parseInt(ta.style.height,10);
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// Setting scrollTop to zero is needed in IE8 and lower for the next step to be accurately applied
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mirror.scrollTop = 0;
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mirror.scrollTop = 9e4;
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// Using scrollTop rather than scrollHeight because scrollHeight is non-standard and includes padding.
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height = mirror.scrollTop;
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if (maxHeight && height > maxHeight) {
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ta.style.overflowY = 'scroll';
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height = maxHeight;
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} else {
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ta.style.overflowY = 'hidden';
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if (height < minHeight) {
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height = minHeight;
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}
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}
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height += boxOffset;
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if (original !== height) {
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ta.style.height = height + 'px';
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if (callback) {
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options.callback.call(ta,ta);
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}
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}
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}
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function resize () {
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clearTimeout(timeout);
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timeout = setTimeout(function(){
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var newWidth = $ta.width();
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if (newWidth !== width) {
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width = newWidth;
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adjust();
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}
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}, parseInt(options.resizeDelay,10));
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}
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if ('onpropertychange' in ta) {
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if ('oninput' in ta) {
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// Detects IE9. IE9 does not fire onpropertychange or oninput for deletions,
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// so binding to onkeyup to catch most of those occassions. There is no way that I
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// so binding to onkeyup to catch most of those occasions. There is no way that I
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// know of to detect something like 'cut' in IE9.
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ta[oninput] = ta.onkeyup = adjust;
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$ta.on('input.autosize keyup.autosize', adjust);
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} else {
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// IE7 / IE8
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ta[onpropertychange] = adjust;
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$ta.on('propertychange.autosize', function(){
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if(event.propertyName === 'value'){
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adjust();
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}
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});
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}
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} else {
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// Modern Browsers
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ta[oninput] = adjust;
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// The textarea overflow is now hidden. But Chrome doesn't reflow the text after the scrollbars are removed.
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// This is a hack to get Chrome to reflow it's text.
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ta.value = '';
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ta.value = value;
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$ta.on('input.autosize', adjust);
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}
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$(window).resize(adjust);
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// Set options.resizeDelay to false if using fixed-width textarea elements.
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// Uses a timeout and width check to reduce the amount of times adjust needs to be called after window resize.
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// Allow for manual triggering if needed.
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$ta.bind('autosize', adjust);
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if (options.resizeDelay !== false) {
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$(window).on('resize.autosize', resize);
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}
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// Event for manual triggering if needed.
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// Should only be needed when the value of the textarea is changed through JavaScript rather than user input.
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$ta.on('autosize.resize', adjust);
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// Event for manual triggering that also forces the styles to update as well.
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// Should only be needed if one of typography styles of the textarea change, and the textarea is already the target of the adjust method.
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$ta.on('autosize.resizeIncludeStyle', function() {
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mirrored = null;
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adjust();
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});
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$ta.on('autosize.destroy', function(){
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mirrored = null;
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clearTimeout(timeout);
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$(window).off('resize', resize);
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$ta
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.off('autosize')
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.off('.autosize')
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.css(originalStyles)
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.removeData('autosize');
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});
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// Call adjust in case the textarea already contains text.
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adjust();
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});
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};
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} else {
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// Makes no changes for older browsers (FireFox3- and Safari4-)
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$.fn.autosize = function (callback) {
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return this;
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};
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}
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}(window.jQuery || window.Zepto));
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}));
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