Merge pull request #1725 from vogdb/issue-1725

Upgrade autosize plugin to version 3

client-vendor/after-body/autosize/autosize.js

@@ -0,0 +1,177 @@
+/*!
+	Autosize 3.0.0
+	license: MIT
+	http://www.jacklmoore.com/autosize
+*/
+(function (global, factory) {
+	if (typeof define === 'function' && define.amd) {
+		define(['exports', 'module'], factory);
+	} else if (typeof exports !== 'undefined' && typeof module !== 'undefined') {
+		factory(exports, module);
+	} else {
+		var mod = {
+			exports: {}
+		};
+		factory(mod.exports, mod);
+		global.autosize = mod.exports;
+	}
+})(this, function (exports, module) {
+	'use strict';
+
+	function assign(ta) {
+		if (!ta || !ta.nodeName || ta.nodeName !== 'TEXTAREA' || ta.hasAttribute('data-autosize-on')) {
+			return;
+		}var maxHeight;
+		var heightOffset;
+
+		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';
+			}
+
+			// Chrome/Safari-specific fix:
+			// When the textarea y-over is hidden, Chrome/Safari doesn't reflow the text to account for the space
+			// made available by removing the scrollbar. This workaround will cause the text to reflow.
+			var width = ta.style.width;
+			ta.style.width = '0px';
+			// Force reflow:
+			/* jshint ignore:start */
+			ta.offsetWidth;
+			/* jshint ignore:end */
+			ta.style.width = width;
+
+			maxHeight = style.maxHeight !== 'none' ? parseFloat(style.maxHeight) : false;
+
+			if (style.boxSizing === 'content-box') {
+				heightOffset = -(parseFloat(style.paddingTop) + parseFloat(style.paddingBottom));
+			} else {
+				heightOffset = parseFloat(style.borderTopWidth) + parseFloat(style.borderBottomWidth);
+			}
+
+			update();
+		}
+
+		function update() {
+			var startHeight = ta.style.height;
+			var htmlTop = document.documentElement.scrollTop;
+			var bodyTop = document.body.scrollTop;
+
+			ta.style.height = 'auto';
+
+			var endHeight = ta.scrollHeight + heightOffset;
+
+			if (maxHeight !== false && maxHeight < endHeight) {
+				endHeight = maxHeight;
+				if (ta.style.overflowY !== 'scroll') {
+					ta.style.overflowY = 'scroll';
+				}
+			} else if (ta.style.overflowY !== 'hidden') {
+				ta.style.overflowY = 'hidden';
+			}
+
+			ta.style.height = endHeight + 'px';
+
+			// prevents scroll-position jumping
+			document.documentElement.scrollTop = htmlTop;
+			document.body.scrollTop = bodyTop;
+
+			if (startHeight !== ta.style.height) {
+				var evt = document.createEvent('Event');
+				evt.initEvent('autosize:resized', true, false);
+				ta.dispatchEvent(evt);
+			}
+		}
+
+		ta.addEventListener('autosize:destroy', (function (style) {
+			window.removeEventListener('resize', update);
+			ta.removeEventListener('input', update);
+			ta.removeEventListener('keyup', update);
+			ta.removeAttribute('data-autosize-on');
+			ta.removeEventListener('autosize:destroy');
+
+			Object.keys(style).forEach(function (key) {
+				ta.style[key] = style[key];
+			});
+		}).bind(ta, {
+			height: ta.style.height,
+			overflowY: ta.style.overflowY,
+			resize: ta.style.resize
+		}));
+
+		// 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);
+		}
+
+		window.addEventListener('resize', update);
+		ta.addEventListener('input', update);
+		ta.addEventListener('autosize:update', update);
+		ta.setAttribute('data-autosize-on', true);
+		ta.style.overflowY = 'hidden';
+		init();
+	}
+
+	function destroy(ta) {
+		if (!ta || !ta.nodeName || ta.nodeName !== 'TEXTAREA') {
+			return;
+		}var evt = document.createEvent('Event');
+		evt.initEvent('autosize:destroy', true, false);
+		ta.dispatchEvent(evt);
+	}
+
+	function update(ta) {
+		if (!(ta && ta.nodeName && ta.nodeName === 'TEXTAREA')) {
+			return;
+		}var evt = document.createEvent('Event');
+		evt.initEvent('autosize:update', true, false);
+		ta.dispatchEvent(evt);
+	}
+
+	var autosize;
+
+	// Do nothing in IE8 or lower
+	if (typeof window.getComputedStyle !== 'function') {
+		autosize = function (el) {
+			return el;
+		};
+		autosize.destroy = function (el) {
+			return el;
+		};
+		autosize.update = function (el) {
+			return el;
+		};
+	} else {
+		autosize = function (el) {
+			if (el && el.length) {
+				Array.prototype.forEach.call(el, assign);
+			} else if (el && el.nodeName) {
+				assign(el);
+			}
+			return el;
+		};
+		autosize.destroy = function (el) {
+			if (el && el.length) {
+				Array.prototype.forEach.call(el, destroy);
+			} else if (el && el.nodeName) {
+				destroy(el);
+			}
+			return el;
+		};
+		autosize.update = function (el) {
+			if (el && el.length) {
+				Array.prototype.forEach.call(el, update);
+			} else if (el && el.nodeName) {
+				update(el);
+			}
+			return el;
+		};
+	}
+
+	module.exports = autosize;
+});