alpaca/dist/lib/tinymce/plugins/autolink/plugin.js

Alpaca provides the easiest and fastest way to generate interactive forms for the web and mobile devices. It runs simply as HTML5 or more elaborately using Bootstrap, jQuery Mobile or jQuery UI. Alpaca uses Handlebars to process JSON schema and provide

/**
 * plugin.js
 *
 * Copyright 2011, Moxiecode Systems AB
 * Released under LGPL License.
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/*global tinymce:true */

tinymce.PluginManager.add('autolink', function(editor) {
	var AutoUrlDetectState;

	editor.on("keydown", function(e) {
		if (e.keyCode == 13) {
			return handleEnter(editor);
		}
	});

	// Internet Explorer has built-in automatic linking for most cases
	if (tinymce.Env.ie) {
		editor.on("focus", function() {
			if (!AutoUrlDetectState) {
				AutoUrlDetectState = true;

				try {
					editor.execCommand('AutoUrlDetect', false, true);
				} catch (ex) {
					// Ignore
				}
			}
		});

		return;
	}

	editor.on("keypress", function(e) {
		if (e.keyCode == 41) {
			return handleEclipse(editor);
		}
	});

	editor.on("keyup", function(e) {
		if (e.keyCode == 32) {
			return handleSpacebar(editor);
		}
	});

	function handleEclipse(editor) {
		parseCurrentLine(editor, -1, '(', true);
	}

	function handleSpacebar(editor) {
		parseCurrentLine(editor, 0, '', true);
	}

	function handleEnter(editor) {
		parseCurrentLine(editor, -1, '', false);
	}

	function parseCurrentLine(editor, end_offset, delimiter) {
		var rng, end, start, endContainer, bookmark, text, matches, prev, len, rngText;

		function scopeIndex(container, index) {
			if (index < 0) {
				index = 0;
			}

			if (container.nodeType == 3) {
				var len = container.data.length;

				if (index > len) {
					index = len;
				}
			}

			return index;
		}

		function setStart(container, offset) {
			if (container.nodeType != 1 || container.hasChildNodes()) {
				rng.setStart(container, scopeIndex(container, offset));
			} else {
				rng.setStartBefore(container);
			}
		}

		function setEnd(container, offset) {
			if (container.nodeType != 1 || container.hasChildNodes()) {
				rng.setEnd(container, scopeIndex(container, offset));
			} else {
				rng.setEndAfter(container);
			}
		}

		// We need at least five characters to form a URL,
		// hence, at minimum, five characters from the beginning of the line.
		rng = editor.selection.getRng(true).cloneRange();
		if (rng.startOffset < 5) {
			// During testing, the caret is placed inbetween two text nodes.
			// The previous text node contains the URL.
			prev = rng.endContainer.previousSibling;
			if (!prev) {
				if (!rng.endContainer.firstChild || !rng.endContainer.firstChild.nextSibling) {
					return;
				}

				prev = rng.endContainer.firstChild.nextSibling;
			}

			len = prev.length;
			setStart(prev, len);
			setEnd(prev, len);

			if (rng.endOffset < 5) {
				return;
			}

			end = rng.endOffset;
			endContainer = prev;
		} else {
			endContainer = rng.endContainer;

			// Get a text node
			if (endContainer.nodeType != 3 && endContainer.firstChild) {
				while (endContainer.nodeType != 3 && endContainer.firstChild) {
					endContainer = endContainer.firstChild;
				}

				// Move range to text node
				if (endContainer.nodeType == 3) {
					setStart(endContainer, 0);
					setEnd(endContainer, endContainer.nodeValue.length);
				}
			}

			if (rng.endOffset == 1) {
				end = 2;
			} else {
				end = rng.endOffset - 1 - end_offset;
			}
		}

		start = end;

		do {
			// Move the selection one character backwards.
			setStart(endContainer, end >= 2 ? end - 2 : 0);
			setEnd(endContainer, end >= 1 ? end - 1 : 0);
			end -= 1;
			rngText = rng.toString();

			// Loop until one of the following is found: a blank space, &nbsp;, delimiter, (end-2) >= 0
		} while (rngText != ' ' && rngText !== '' && rngText.charCodeAt(0) != 160 && (end - 2) >= 0 && rngText != delimiter);

		if (rng.toString() == delimiter || rng.toString().charCodeAt(0) == 160) {
			setStart(endContainer, end);
			setEnd(endContainer, start);
			end += 1;
		} else if (rng.startOffset === 0) {
			setStart(endContainer, 0);
			setEnd(endContainer, start);
		} else {
			setStart(endContainer, end);
			setEnd(endContainer, start);
		}

		// Exclude last . from word like "www.site.com."
		text = rng.toString();
		if (text.charAt(text.length - 1) == '.') {
			setEnd(endContainer, start - 1);
		}

		text = rng.toString();
		matches = text.match(/^(https?:\/\/|ssh:\/\/|ftp:\/\/|file:\/|www\.|(?:mailto:)?[A-Z0-9._%+\-]+@)(.+)$/i);

		if (matches) {
			if (matches[1] == 'www.') {
				matches[1] = 'http://www.';
			} else if (/@$/.test(matches[1]) && !/^mailto:/.test(matches[1])) {
				matches[1] = 'mailto:' + matches[1];
			}

			bookmark = editor.selection.getBookmark();

			editor.selection.setRng(rng);
			editor.execCommand('createlink', false, matches[1] + matches[2]);
			editor.selection.moveToBookmark(bookmark);
			editor.nodeChanged();
		}
	}
});