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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.Clipboard
* @private
*/
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 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
};
});