/*! autosize 4.0.2 license: MIT http://www.jacklmoore.com/autosize */ (function (global, factory) { if (typeof define === "function" && define.amd) { define(['module', 'exports'], factory); } else if (typeof exports !== "undefined") { factory(module, exports); } else { var mod = { exports: {} }; factory(mod, mod.exports); global.autosize = mod.exports; } })(this, function (module, exports) { 'use strict'; var map = typeof Map === "function" ? new Map() : function () { var keys = []; var values = []; return { has: function has(key) { return keys.indexOf(key) > -1; }, get: function get(key) { return values[keys.indexOf(key)]; }, set: function set(key, value) { if (keys.indexOf(key) === -1) { keys.push(key); values.push(value); } }, delete: function _delete(key) { var index = keys.indexOf(key); if (index > -1) { keys.splice(index, 1); values.splice(index, 1); } } }; }(); var createEvent = function createEvent(name) { return new Event(name, { bubbles: true }); }; try { new Event('test'); } catch (e) { // IE does not support `new Event()` createEvent = function createEvent(name) { var evt = document.createEvent('Event'); evt.initEvent(name, true, false); return evt; }; } function assign(ta) { if (!ta || !ta.nodeName || ta.nodeName !== 'TEXTAREA' || map.has(ta)) return; var heightOffset = null; var clientWidth = null; var cachedHeight = null; function init() { var style = window.getComputedStyle(ta, null); if (style.resize === 'vertical') { ta.style.resize = 'none'; } else if (style.resize === 'both') { ta.style.resize = 'horizontal'; } if (style.boxSizing === 'content-box') { heightOffset = -(parseFloat(style.paddingTop) + parseFloat(style.paddingBottom)); } else { heightOffset = parseFloat(style.borderTopWidth) + parseFloat(style.borderBottomWidth); } // Fix when a textarea is not on document body and heightOffset is Not a Number if (isNaN(heightOffset)) { heightOffset = 0; } update(); } function changeOverflow(value) { { // Chrome/Safari-specific fix: // When the textarea y-overflow is hidden, Chrome/Safari do not reflow the text to account for the space // made available by removing the scrollbar. The following forces the necessary text reflow. var width = ta.style.width; ta.style.width = '0px'; // Force reflow: /* jshint ignore:start */ ta.offsetWidth; /* jshint ignore:end */ ta.style.width = width; } ta.style.overflowY = value; } function getParentOverflows(el) { var arr = []; while (el && el.parentNode && el.parentNode instanceof Element) { if (el.parentNode.scrollTop) { arr.push({ node: el.parentNode, scrollTop: el.parentNode.scrollTop }); } el = el.parentNode; } return arr; } function resize() { if (ta.scrollHeight === 0) { // If the scrollHeight is 0, then the element probably has display:none or is detached from the DOM. return; } var overflows = getParentOverflows(ta); var docTop = document.documentElement && document.documentElement.scrollTop; // Needed for Mobile IE (ticket #240) ta.style.height = ''; ta.style.height = ta.scrollHeight + heightOffset + 'px'; // used to check if an update is actually necessary on window.resize clientWidth = ta.clientWidth; // prevents scroll-position jumping overflows.forEach(function (el) { el.node.scrollTop = el.scrollTop; }); if (docTop) { document.documentElement.scrollTop = docTop; } } function update() { resize(); var styleHeight = Math.round(parseFloat(ta.style.height)); var computed = window.getComputedStyle(ta, null); // Using offsetHeight as a replacement for computed.height in IE, because IE does not account use of border-box var actualHeight = computed.boxSizing === 'content-box' ? Math.round(parseFloat(computed.height)) : ta.offsetHeight; // The actual height not matching the style height (set via the resize method) indicates that // the max-height has been exceeded, in which case the overflow should be allowed. if (actualHeight < styleHeight) { if (computed.overflowY === 'hidden') { changeOverflow('scroll'); resize(); actualHeight = computed.boxSizing === 'content-box' ? Math.round(parseFloat(window.getComputedStyle(ta, null).height)) : ta.offsetHeight; } } else { // Normally keep overflow set to hidden, to avoid flash of scrollbar as the textarea expands. if (computed.overflowY !== 'hidden') { changeOverflow('hidden'); resize(); actualHeight = computed.boxSizing === 'content-box' ? Math.round(parseFloat(window.getComputedStyle(ta, null).height)) : ta.offsetHeight; } } if (cachedHeight !== actualHeight) { cachedHeight = actualHeight; var evt = createEvent('autosize:resized'); try { ta.dispatchEvent(evt); } catch (err) { // Firefox will throw an error on dispatchEvent for a detached element // https://bugzilla.mozilla.org/show_bug.cgi?id=889376 } } } var pageResize = function pageResize() { if (ta.clientWidth !== clientWidth) { update(); } }; var destroy = function (style) { window.removeEventListener('resize', pageResize, false); ta.removeEventListener('input', update, false); ta.removeEventListener('keyup', update, false); ta.removeEventListener('autosize:destroy', destroy, false); ta.removeEventListener('autosize:update', update, false); Object.keys(style).forEach(function (key) { ta.style[key] = style[key]; }); map.delete(ta); }.bind(ta, { height: ta.style.height, resize: ta.style.resize, overflowY: ta.style.overflowY, overflowX: ta.style.overflowX, wordWrap: ta.style.wordWrap }); ta.addEventListener('autosize:destroy', destroy, false); // IE9 does not fire onpropertychange or oninput for deletions, // so binding to onkeyup to catch most of those events. // There is no way that I know of to detect something like 'cut' in IE9. if ('onpropertychange' in ta && 'oninput' in ta) { ta.addEventListener('keyup', update, false); } window.addEventListener('resize', pageResize, false); ta.addEventListener('input', update, false); ta.addEventListener('autosize:update', update, false); ta.style.overflowX = 'hidden'; ta.style.wordWrap = 'break-word'; map.set(ta, { destroy: destroy, update: update }); init(); } function destroy(ta) { var methods = map.get(ta); if (methods) { methods.destroy(); } } function update(ta) { var methods = map.get(ta); if (methods) { methods.update(); } } var autosize = null; // Do nothing in Node.js environment and IE8 (or lower) if (typeof window === 'undefined' || typeof window.getComputedStyle !== 'function') { autosize = function autosize(el) { return el; }; autosize.destroy = function (el) { return el; }; autosize.update = function (el) { return el; }; } else { autosize = function autosize(el, options) { if (el) { Array.prototype.forEach.call(el.length ? el : [el], function (x) { return assign(x, options); }); } return el; }; autosize.destroy = function (el) { if (el) { Array.prototype.forEach.call(el.length ? el : [el], destroy); } return el; }; autosize.update = function (el) { if (el) { Array.prototype.forEach.call(el.length ? el : [el], update); } return el; }; } exports.default = autosize; module.exports = exports['default']; });

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