X-Git-Url: http://pileus.org/git/?p=vpaste;a=blobdiff_plain;f=embed.js;fp=embed.js;h=d949c428bac71b76a7621d29d075667bbb729dd9;hp=0000000000000000000000000000000000000000;hb=be9a79188b57c09b9232ab2dc6984b1f938dd3ee;hpb=22626be0dfe53927e7a440073cbcbd29d44dd949

diff --git a/embed.js b/embed.js
new file mode 100644
index 0000000..d949c42
--- /dev/null
+++ b/embed.js
@@ -0,0 +1,154 @@
+// Copyright (C) 2013 Andy Spencer
+//
+// This program is free software: you can redistribute it and/or modify it under
+// the terms of the GNU Affero General Public License as published by the Free
+// Software Foundation, either version 3 of the License, or (at your option) any
+// later version.
+//
+// This program is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+// FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more
+// details.
+
+/* Constants */
+var vpaste = 'http://vpaste.net/';
+
+var light  = '#f4f4f4';
+var dark   = '#111133';
+var border = '#8888dd';
+
+var styles = [
+	'background: ' + light + ';',
+	'border: solid 1px ' + border + ';',
+	'padding: 0.5em;',
+	'overflow: auto;',
+	'display: block;',
+	'white-space: pre;',
+	'text-align: left;',
+];
+
+/* Globals */
+var query;
+
+/* Update Style Sheet */ 
+function update_styles(style, name) {
+	var text  = style.innerHTML;
+	var lines = text.split(/\n/);
+	for (var i = 0; i < lines.length; i++) {
+		var line = lines[i];
+		line = line.replace(/#ffffff/, light);
+		line = line.replace(/#000000/, dark);
+		if (line.match(/^pre/))
+			line = line.replace(/^pre/, '.'+name);
+		else if (line.match(/^\./))
+			line = '.'+name+' '+line;
+		else
+			line = '';
+		lines[i] = line;
+	}
+	style.innerHTML = lines.join('\n');
+}
+
+/* Embed paste into page  */
+function embed_paste(ajax, style, html, name) {
+	if (ajax.readyState != 4 && ajax.readyState != 'complete')
+		return;
+	if (!ajax.responseXML)
+		throw new Error('No response XML: ' + ajax.responseText);
+	var xml    = ajax.responseXML;
+	var vstyle = xml.getElementsByTagName('style')[0];
+	var vhtml  = xml.getElementsByTagName('pre')[0];
+	update_styles(vstyle, name);
+	style.innerHTML += vstyle.innerHTML;
+	html.innerHTML   = vhtml.innerHTML.replace(/^\n*/, '');
+	html.style.visibility = 'visible';
+}
+
+/* Strip whitespace from a paste */
+function strip_spaces(text) {
+	var prefix = null;
+	var lines  = text.replace(/^\s*\n|\n\s*$/g,'').split('\n');
+	for (i in lines) {
+		if (lines[i].match(/^\s*$/))
+			continue;
+		var white = lines[i].replace(/\S.*/, '')
+		if (prefix === null || white.length < prefix.length)
+			prefix = white;
+	}
+	for (i in lines)
+		lines[i] = lines[i].replace(prefix, '');
+	return lines.join('\n');
+}
+
+/* Start embedding a paste */
+function query_paste(method, url, body, html, name) {
+	/* Add style tag box */
+	var style = document.createElement('style');
+	style.type      = "text/css";
+	style.innerHTML = '.' + name + ' { ' + styles.join(' ') + ' }';
+	document.head.insertBefore(style, document.head.firstChild);
+
+	/* Get AJAX object */
+	var ajax = null;
+	if (!ajax) ajax = new XMLHttpRequest();
+	if (!ajax) ajax = new ActiveXObject('Microsoft.XMLHTTP');
+	if (!ajax) throw new Error('Cannot get AJAX object');
+
+	/* Insert default query */
+	if (query)
+		url = url.replace(/[?]/, '?' + query + ',');
+
+	/* Run AJAX Request */
+	ajax.onreadystatechange = function() {
+		embed_paste(ajax, style, html, name) };
+	ajax.open(method, url, true);
+	ajax.setRequestHeader('Accept', 'text/html');
+	ajax.overrideMimeType('application/xhtml+xml');
+	ajax.send(body);
+}
+
+/* Start embedding a paste */
+function start_embed() {
+	/* Get current paste information */
+	var scripts = document.getElementsByTagName('script');
+	var script  = scripts[scripts.length-1];
+	var text    = strip_spaces(script.innerHTML);
+	var name    = 'vpaste_s' + scripts.length;
+	var regex   = /^[^?]*[?]?(([a-zA-Z0-9.]*)[?&, ]?(.*))$/;
+	var parts   = script.src.match(regex);
+
+	/* Handle header tags */
+	if (!text && !parts[2] || !document.body)
+		return query = parts[1];
+
+	/* Add paste box */
+	var html = document.createElement('pre');
+	html.innerHTML = 'Loading..';
+	html.className = script.className + ' vpaste ' + name;
+	document.body.appendChild(html);
+
+	/* Query the paste */
+	if (text)
+		query_paste('POST', vpaste+'view?'+parts[1],
+			text, html, name);
+	else
+		query_paste('GET', vpaste+parts[2]+'?'+parts[3],
+			null, html, name);
+}
+
+/* Convert all code tags to pastes */
+function format_code(type) {
+	var tags = document.getElementsByTagName('code');
+	for (var i = 0; i < tags.length; i++) {
+		var tag = tags[i];
+		if (type && tag.className != type)
+			continue;
+		var name = 'vpaste_c' + i;
+		var text = strip_spaces(tag.innerHTML);
+		tag.className     += ' ' + name;
+		query_paste('POST', vpaste+'view?'+tag.title,
+				text, tag, name);
+	}
+}
+
+start_embed();