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public/tinymce/plugins/paste_raw/classes/Utils.js

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+/**
+ * Utils.js
+ *
+ * Copyright, Moxiecode Systems AB
+ * Released under LGPL License.
+ *
+ * License: http://www.tinymce.com/license
+ * Contributing: http://www.tinymce.com/contributing
+ */
+
+/**
+ * This class contails various utility functions for the paste plugin.
+ *
+ * @class tinymce.pasteplugin.Utils
+ */
+define("tinymce/pasteplugin/Utils", [
+	"tinymce/util/Tools",
+	"tinymce/html/DomParser",
+	"tinymce/html/Schema"
+], function(Tools, DomParser, Schema) {
+	function filter(content, items) {
+		Tools.each(items, function(v) {
+			if (v.constructor == RegExp) {
+				content = content.replace(v, '');
+			} else {
+				content = content.replace(v[0], v[1]);
+			}
+		});
+
+		return content;
+	}
+
+	/**
+	 * Gets the innerText of the specified element. It will handle edge cases
+	 * and works better than textContent on Gecko.
+	 *
+	 * @param {String} html HTML string to get text from.
+	 * @return {String} String of text with line feeds.
+	 */
+	function innerText(html) {
+		var schema = new Schema(), domParser = new DomParser({}, schema), text = '';
+		var shortEndedElements = schema.getShortEndedElements();
+		var ignoreElements = Tools.makeMap('script noscript style textarea video audio iframe object', ' ');
+		var blockElements = schema.getBlockElements();
+
+		function walk(node) {
+			var name = node.name, currentNode = node;
+
+			if (name === 'br') {
+				text += '\n';
+				return;
+			}
+
+			// img/input/hr
+			if (shortEndedElements[name]) {
+				text += ' ';
+			}
+
+			// Ingore script, video contents
+			if (ignoreElements[name]) {
+				text += ' ';
+				return;
+			}
+
+			if (node.type == 3) {
+				text += node.value;
+			}
+
+			// Walk all children
+			if (!node.shortEnded) {
+				if ((node = node.firstChild)) {
+					do {
+						walk(node);
+					} while ((node = node.next));
+				}
+			}
+
+			// Add \n or \n\n for blocks or P
+			if (blockElements[name] && currentNode.next) {
+				text += '\n';
+
+				if (name == 'p') {
+					text += '\n';
+				}
+			}
+		}
+
+		html = filter(html, [
+			/<!\[[^\]]+\]>/g // Conditional comments
+		]);
+
+		walk(domParser.parse(html));
+
+		return text;
+	}
+
+	/**
+	 * Trims the specified HTML by removing all WebKit fragments, all elements wrapping the body trailing BR elements etc.
+	 *
+	 * @param {String} html Html string to trim contents on.
+	 * @return {String} Html contents that got trimmed.
+	 */
+	function trimHtml(html) {
+		function trimSpaces(all, s1, s2) {
+			// WebKit &nbsp; meant to preserve multiple spaces but instead inserted around all inline tags,
+			// including the spans with inline styles created on paste
+			if (!s1 && !s2) {
+				return ' ';
+			}
+
+			return '\u00a0';
+		}
+
+		html = filter(html, [
+			/^[\s\S]*<body[^>]*>\s*|\s*<\/body[^>]*>[\s\S]*$/g, // Remove anything but the contents within the BODY element
+			/<!--StartFragment-->|<!--EndFragment-->/g, // Inner fragments (tables from excel on mac)
+			[/( ?)<span class="Apple-converted-space">\u00a0<\/span>( ?)/g, trimSpaces],
+			/<br>$/i // Trailing BR elements
+		]);
+
+		return html;
+	}
+
+	return {
+		filter: filter,
+		innerText: innerText,
+		trimHtml: trimHtml
+	};
+});