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