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source: subversion/trunk/roundcubemail/program/include/rcube_template.php @ 2980

Last change on this file since 2980 was 2980, checked in by alec, 4 years ago
allow setting login inputs size in skin template (#1486155)
Property svn:executable set to ``*
File size: 38.2 KB

Line
1	<?php
2
3	/*
4	+-----------------------------------------------------------------------+
5	\| program/include/rcube_template.php \|
6	\| \|
7	\| This file is part of the RoundCube Webmail client \|
8	\| Copyright (C) 2006-2009, RoundCube Dev. - Switzerland \|
9	\| Licensed under the GNU GPL \|
10	\| \|
11	\| PURPOSE: \|
12	\| Class to handle HTML page output using a skin template. \|
13	\| Extends rcube_html_page class from rcube_shared.inc \|
14	\| \|
15	+-----------------------------------------------------------------------+
16	\| Author: Thomas Bruederli <roundcube@gmail.com> \|
17	+-----------------------------------------------------------------------+
18
19	$Id$
20
21	*/
22
23
24	/**
25	* Class to create HTML page output using a skin template
26	*
27	* @package View
28	* @todo Documentation
29	* @uses rcube_html_page
30	*/
31	class rcube_template extends rcube_html_page
32	{
33	var $app;
34	var $config;
35	var $framed = false;
36	var $pagetitle = '';
37	var $message = null;
38	var $env = array();
39	var $js_env = array();
40	var $js_commands = array();
41	var $object_handlers = array();
42
43	public $type = 'html';
44	public $ajax_call = false;
45
46	/**
47	* Constructor
48	*
49	* @todo Use jQuery's $(document).ready() here.
50	* @todo Replace $this->config with the real rcube_config object
51	*/
52	public function __construct($task, $framed = false)
53	{
54	parent::__construct();
55
56	$this->app = rcmail::get_instance();
57	$this->config = $this->app->config->all();
58	$this->browser = new rcube_browser();
59
60	//$this->framed = $framed;
61	$this->set_env('task', $task);
62	$this->set_env('request_token', $this->app->get_request_token());
63
64	// load the correct skin (in case user-defined)
65	$this->set_skin($this->config['skin']);
66
67	// add common javascripts
68	$javascript = 'var '.JS_OBJECT_NAME.' = new rcube_webmail();';
69
70	// don't wait for page onload. Call init at the bottom of the page (delayed)
71	$javascript_foot = '$(document).ready(function(){ '.JS_OBJECT_NAME.'.init(); });';
72
73	$this->add_script($javascript, 'head_top');
74	$this->add_script($javascript_foot, 'foot');
75	$this->scripts_path = 'program/js/';
76	$this->include_script('jquery-1.3.min.js');
77	$this->include_script('common.js');
78	$this->include_script('app.js');
79
80	// register common UI objects
81	$this->add_handlers(array(
82	'loginform' => array($this, 'login_form'),
83	'username' => array($this, 'current_username'),
84	'message' => array($this, 'message_container'),
85	'charsetselector' => array($this, 'charset_selector'),
86	));
87	}
88
89	/**
90	* Set environment variable
91	*
92	* @param string Property name
93	* @param mixed Property value
94	* @param boolean True if this property should be added to client environment
95	*/
96	public function set_env($name, $value, $addtojs = true)
97	{
98	$this->env[$name] = $value;
99	if ($addtojs \|\| isset($this->js_env[$name])) {
100	$this->js_env[$name] = $value;
101	}
102	}
103
104
105	/**
106	* Set page title variable
107	*/
108	public function set_pagetitle($title)
109	{
110	$this->pagetitle = $title;
111	}
112
113
114	/**
115	* Getter for the current page title
116	*
117	* @return string The page title
118	*/
119	public function get_pagetitle()
120	{
121	if (!empty($this->pagetitle)) {
122	$title = $this->pagetitle;
123	}
124	else if ($this->env['task'] == 'login') {
125	$title = rcube_label(array('name' => 'welcome', 'vars' => array('product' => $this->config['product_name'])));
126	}
127	else {
128	$title = ucfirst($this->env['task']);
129	}
130
131	return $title;
132	}
133
134
135	/**
136	* Set skin
137	*/
138	public function set_skin($skin)
139	{
140	if (!empty($skin) && is_dir('skins/'.$skin) && is_readable('skins/'.$skin))
141	$skin_path = 'skins/'.$skin;
142	else
143	$skin_path = $this->config['skin_path'] ? $this->config['skin_path'] : 'skins/default';
144
145	$this->app->config->set('skin_path', $skin_path);
146	$this->config['skin_path'] = $skin_path;
147	}
148
149	/**
150	* Check if a specific template exists
151	*
152	* @param string Template name
153	* @return boolean True if template exists
154	*/
155	public function template_exists($name)
156	{
157	$filename = $this->config['skin_path'] . '/templates/' . $name . '.html';
158
159	return (is_file($filename) && is_readable($filename));
160	}
161
162	/**
163	* Register a template object handler
164	*
165	* @param string Object name
166	* @param string Function name to call
167	* @return void
168	*/
169	public function add_handler($obj, $func)
170	{
171	$this->object_handlers[$obj] = $func;
172	}
173
174	/**
175	* Register a list of template object handlers
176	*
177	* @param array Hash array with object=>handler pairs
178	* @return void
179	*/
180	public function add_handlers($arr)
181	{
182	$this->object_handlers = array_merge($this->object_handlers, $arr);
183	}
184
185	/**
186	* Register a GUI object to the client script
187	*
188	* @param string Object name
189	* @param string Object ID
190	* @return void
191	*/
192	public function add_gui_object($obj, $id)
193	{
194	$this->add_script(JS_OBJECT_NAME.".gui_object('$obj', '$id');");
195	}
196
197	/**
198	* Call a client method
199	*
200	* @param string Method to call
201	* @param ... Additional arguments
202	*/
203	public function command()
204	{
205	$cmd = func_get_args();
206	if (strpos($cmd[0], 'plugin.') === false)
207	$this->js_commands[] = $cmd;
208	}
209
210
211	/**
212	* Add a localized label to the client environment
213	*/
214	public function add_label()
215	{
216	$args = func_get_args();
217	if (count($args) == 1 && is_array($args[0]))
218	$args = $args[0];
219
220	foreach ($args as $name) {
221	$this->command('add_label', $name, rcube_label($name));
222	}
223	}
224
225
226	/**
227	* Invoke display_message command
228	*
229	* @param string Message to display
230	* @param string Message type [notice\|confirm\|error]
231	* @param array Key-value pairs to be replaced in localized text
232	* @param boolean Override last set message
233	* @uses self::command()
234	*/
235	public function show_message($message, $type='notice', $vars=null, $override=true)
236	{
237	if ($override \|\| !$this->message) {
238	$this->message = $message;
239	$this->command(
240	'display_message',
241	rcube_label(array('name' => $message, 'vars' => $vars)),
242	$type);
243	}
244	}
245
246
247	/**
248	* Delete all stored env variables and commands
249	*
250	* @return void
251	* @uses rcube_html::reset()
252	* @uses self::$env
253	* @uses self::$js_env
254	* @uses self::$js_commands
255	* @uses self::$object_handlers
256	*/
257	public function reset()
258	{
259	$this->env = array();
260	$this->js_env = array();
261	$this->js_commands = array();
262	$this->object_handlers = array();
263	parent::reset();
264	}
265
266
267	/**
268	* Redirect to a certain url
269	*
270	* @param mixed Either a string with the action or url parameters as key-value pairs
271	* @see rcmail::url()
272	*/
273	public function redirect($p = array())
274	{
275	$location = $this->app->url($p);
276	header('Location: ' . $location);
277	exit;
278	}
279
280
281	/**
282	* Send the request output to the client.
283	* This will either parse a skin tempalte or send an AJAX response
284	*
285	* @param string Template name
286	* @param boolean True if script should terminate (default)
287	*/
288	public function send($templ = null, $exit = true)
289	{
290	if ($templ != 'iframe') {
291	// prevent from endless loops
292	if ($exit != 'recur' && $this->app->plugins->is_processing('render_page')) {
293	raise_error(array('code' => 505, 'type' => 'php', 'message' => 'Recursion alert: ignoring output->send()'), true, false);
294	return;
295	}
296	$this->parse($templ, false);
297	}
298	else {
299	$this->framed = $templ == 'iframe' ? true : $this->framed;
300	$this->write();
301	}
302
303	// set output asap
304	ob_flush();
305	flush();
306
307	if ($exit) {
308	exit;
309	}
310	}
311
312	/**
313	* Process template and write to stdOut
314	*
315	* @param string HTML template
316	* @see rcube_html_page::write()
317	* @override
318	*/
319	public function write($template = '')
320	{
321	// unlock interface after iframe load
322	if ($this->framed) {
323	array_unshift($this->js_commands, array('set_busy', false));
324	}
325	// write all env variables to client
326	$js = $this->framed ? "if(window.parent) {\n" : '';
327	$js .= $this->get_js_commands() . ($this->framed ? ' }' : '');
328	$this->add_script($js, 'head_top');
329
330	// make sure all <form> tags have a valid request token
331	$template = preg_replace_callback('/<form\s+([^>]+)>/Ui', array($this, 'alter_form_tag'), $template);
332	$this->footer = preg_replace_callback('/<form\s+([^>]+)>/Ui', array($this, 'alter_form_tag'), $this->footer);
333
334	// call super method
335	parent::write($template, $this->config['skin_path']);
336	}
337
338	/**
339	* Parse a specific skin template and deliver to stdout
340	*
341	* Either returns nothing, or exists hard (exit();)
342	*
343	* @param string Template name
344	* @param boolean Exit script
345	* @return void
346	* @link http://php.net/manual/en/function.exit.php
347	*/
348	private function parse($name = 'main', $exit = true)
349	{
350	$skin_path = $this->config['skin_path'];
351	$plugin = false;
352
353	$temp = explode(".", $name, 2);
354	if (count($temp) > 1) {
355	$plugin = $temp[0];
356	$name = $temp[1];
357	$skin_dir = $plugin . '/skins/' . $this->config['skin'];
358	$skin_path = $this->app->plugins->dir . $skin_dir;
359	if (!is_dir($skin_path)) { // fallback to default skin
360	$skin_dir = $plugin . '/skins/default';
361	$skin_path = $this->app->plugins->dir . $skin_dir;
362	}
363	}
364
365	$path = "$skin_path/templates/$name.html";
366
367	// read template file
368	if (($templ = @file_get_contents($path)) === false) {
369	raise_error(array(
370	'code' => 501,
371	'type' => 'php',
372	'line' => __LINE__,
373	'file' => __FILE__,
374	'message' => 'Error loading template for '.$name
375	), true, true);
376	return false;
377	}
378
379	// replace all path references to plugins/... with the configured plugins dir
380	// and /this/ to the current plugin skin directory
381	if ($plugin) {
382	$templ = preg_replace(array('/\bplugins\//', '/(["\']?)\/this\//'), array($this->app->plugins->url, '\\1'.$this->app->plugins->url.$skin_dir.'/'), $templ);
383	}
384
385	// parse for specialtags
386	$output = $this->parse_conditions($templ);
387	$output = $this->parse_xml($output);
388
389	// trigger generic hook where plugins can put additional content to the page
390	$hook = $this->app->plugins->exec_hook("render_page", array('template' => $name, 'content' => $output));
391
392	// add debug console
393	if ($this->config['debug_level'] & 8) {
394	$this->add_footer('<div id="console" style="position:absolute;top:5px;left:5px;width:405px;padding:2px;background:white;z-index:9000;">
395	<a href="#toggle" onclick="con=document.getElementById(\'dbgconsole\');con.style.display=(con.style.display==\'none\'?\'block\':\'none\');return false">console</a>
396	<form action="/" name="debugform" style="display:inline"><textarea name="console" id="dbgconsole" rows="20" cols="40" wrap="off" style="display:none;width:400px;border:none;font-size:x-small" spellcheck="false"></textarea></form></div>'
397	);
398	}
399
400	$output = $this->parse_with_globals($hook['content']);
401	$this->write(trim($output));
402	if ($exit) {
403	exit;
404	}
405	}
406
407
408	/**
409	* Return executable javascript code for all registered commands
410	*
411	* @return string $out
412	*/
413	private function get_js_commands()
414	{
415	$out = '';
416	if (!$this->framed && !empty($this->js_env)) {
417	$out .= JS_OBJECT_NAME . '.set_env('.json_serialize($this->js_env).");\n";
418	}
419	foreach ($this->js_commands as $i => $args) {
420	$method = array_shift($args);
421	foreach ($args as $i => $arg) {
422	$args[$i] = json_serialize($arg);
423	}
424	$parent = $this->framed \|\| preg_match('/^parent\./', $method);
425	$out .= sprintf(
426	"%s.%s(%s);\n",
427	($parent ? 'if(window.parent && parent.'.JS_OBJECT_NAME.') parent.' : '') . JS_OBJECT_NAME,
428	preg_replace('/^parent\./', '', $method),
429	implode(',', $args)
430	);
431	}
432
433	return $out;
434	}
435
436	/**
437	* Make URLs starting with a slash point to skin directory
438	*
439	* @param string Input string
440	* @return string
441	*/
442	public function abs_url($str)
443	{
444	return preg_replace('/^\//', $this->config['skin_path'].'/', $str);
445	}
446
447
448	/*** Template parsing methods ***/
449
450	/**
451	* Replace all strings ($varname)
452	* with the content of the according global variable.
453	*/
454	private function parse_with_globals($input)
455	{
456	$GLOBALS['__version'] = Q(RCMAIL_VERSION);
457	$GLOBALS['__comm_path'] = Q($this->app->comm_path);
458	return preg_replace('/\$(__[a-z0-9_\-]+)/e', '$GLOBALS["\\1"]', $input);
459	}
460
461	/**
462	* Public wrapper to dipp into template parsing.
463	*
464	* @param string $input
465	* @return string
466	* @uses rcube_template::parse_xml()
467	* @since 0.1-rc1
468	*/
469	public function just_parse($input)
470	{
471	return $this->parse_xml($input);
472	}
473
474	/**
475	* Parse for conditional tags
476	*
477	* @param string $input
478	* @return string
479	*/
480	private function parse_conditions($input)
481	{
482	$matches = preg_split('/<roundcube:(if\|elseif\|else\|endif)\s+([^>]+)>/is', $input, 2, PREG_SPLIT_DELIM_CAPTURE);
483	if ($matches && count($matches) == 4) {
484	if (preg_match('/^(else\|endif)$/i', $matches[1])) {
485	return $matches[0] . $this->parse_conditions($matches[3]);
486	}
487	$attrib = parse_attrib_string($matches[2]);
488	if (isset($attrib['condition'])) {
489	$condmet = $this->check_condition($attrib['condition']);
490	$submatches = preg_split('/<roundcube:(elseif\|else\|endif)\s+([^>]+)>/is', $matches[3], 2, PREG_SPLIT_DELIM_CAPTURE);
491	if ($condmet) {
492	$result = $submatches[0];
493	$result.= ($submatches[1] != 'endif' ? preg_replace('/.*<roundcube:endif\s+[^>]+>/Uis', '', $submatches[3], 1) : $submatches[3]);
494	}
495	else {
496	$result = "<roundcube:$submatches[1] $submatches[2]>" . $submatches[3];
497	}
498	return $matches[0] . $this->parse_conditions($result);
499	}
500	raise_error(array(
501	'code' => 500,
502	'type' => 'php',
503	'line' => __LINE__,
504	'file' => __FILE__,
505	'message' => "Unable to parse conditional tag " . $matches[2]
506	), true, false);
507	}
508	return $input;
509	}
510
511
512	/**
513	* Determines if a given condition is met
514	*
515	* @todo Get rid off eval() once I understand what this does.
516	* @todo Extend this to allow real conditions, not just "set"
517	* @param string Condition statement
518	* @return boolean True if condition is met, False if not
519	*/
520	private function check_condition($condition)
521	{
522	return eval("return (".$this->parse_expression($condition).");");
523	}
524
525
526	/**
527	*
528	*/
529	private function alter_form_tag($matches)
530	{
531	$out = $matches[0];
532	$attrib = parse_attrib_string($matches[1]);
533
534	if (strtolower($attrib['method']) == 'post') {
535	$hidden = new html_hiddenfield(array('name' => '_token', 'value' => $this->app->get_request_token()));
536	$out .= "\n" . $hidden->show();
537	}
538
539	return $out;
540	}
541
542
543	/**
544	* Parses expression and replaces variables
545	*
546	* @param string Expression statement
547	* @return string Expression statement
548	*/
549	private function parse_expression($expression)
550	{
551	return preg_replace(
552	array(
553	'/session:([a-z0-9_]+)/i',
554	'/config:([a-z0-9_]+)(:([a-z0-9_]+))?/i',
555	'/env:([a-z0-9_]+)/i',
556	'/request:([a-z0-9_]+)/i',
557	'/cookie:([a-z0-9_]+)/i',
558	'/browser:([a-z0-9_]+)/i'
559	),
560	array(
561	"\$_SESSION['\\1']",
562	"\$this->app->config->get('\\1',get_boolean('\\3'))",
563	"\$this->env['\\1']",
564	"get_input_value('\\1', RCUBE_INPUT_GPC)",
565	"\$_COOKIE['\\1']",
566	"\$this->browser->{'\\1'}"
567	),
568	$expression);
569	}
570
571
572	/**
573	* Search for special tags in input and replace them
574	* with the appropriate content
575	*
576	* @param string Input string to parse
577	* @return string Altered input string
578	* @todo Use DOM-parser to traverse template HTML
579	* @todo Maybe a cache.
580	*/
581	private function parse_xml($input)
582	{
583	return preg_replace_callback('/<roundcube:([-_a-z]+)\s+([^>]+)>/Ui', array($this, 'xml_command'), $input);
584	}
585
586
587	/**
588	* Callback function for parsing an xml command tag
589	* and turn it into real html content
590	*
591	* @param array Matches array of preg_replace_callback
592	* @return string Tag/Object content
593	*/
594	private function xml_command($matches)
595	{
596	$command = strtolower($matches[1]);
597	$attrib = parse_attrib_string($matches[2]);
598
599	// empty output if required condition is not met
600	if (!empty($attrib['condition']) && !$this->check_condition($attrib['condition'])) {
601	return '';
602	}
603
604	// execute command
605	switch ($command) {
606	// return a button
607	case 'button':
608	if ($attrib['name'] \|\| $attrib['command']) {
609	return $this->button($attrib);
610	}
611	break;
612
613	// show a label
614	case 'label':
615	if ($attrib['name'] \|\| $attrib['command']) {
616	return Q(rcube_label($attrib + array('vars' => array('product' => $this->config['product_name']))));
617	}
618	break;
619
620	// include a file
621	case 'include':
622	$path = realpath($this->config['skin_path'].$attrib['file']);
623	if (is_readable($path)) {
624	if ($this->config['skin_include_php']) {
625	$incl = $this->include_php($path);
626	}
627	else {
628	$incl = file_get_contents($path);
629	}
630	$incl = $this->parse_conditions($incl);
631	return $this->parse_xml($incl);
632	}
633	break;
634
635	case 'plugin.include':
636	$hook = $this->app->plugins->exec_hook("template_plugin_include", $attrib);
637	return $hook['content'];
638	break;
639
640	// define a container block
641	case 'container':
642	if ($attrib['name'] && $attrib['id']) {
643	$this->command('gui_container', $attrib['name'], $attrib['id']);
644	// let plugins insert some content here
645	$hook = $this->app->plugins->exec_hook("template_container", $attrib);
646	return $hook['content'];
647	}
648	break;
649
650	// return code for a specific application object
651	case 'object':
652	$object = strtolower($attrib['name']);
653	$content = '';
654
655	// we are calling a class/method
656	if (($handler = $this->object_handlers[$object]) && is_array($handler)) {
657	if ((is_object($handler[0]) && method_exists($handler[0], $handler[1])) \|\|
658	(is_string($handler[0]) && class_exists($handler[0])))
659	$content = call_user_func($handler, $attrib);
660	}
661	// execute object handler function
662	else if (function_exists($handler)) {
663	$content = call_user_func($handler, $attrib);
664	}
665	else if ($object == 'productname') {
666	$name = !empty($this->config['product_name']) ? $this->config['product_name'] : 'RoundCube Webmail';
667	$content = Q($name);
668	}
669	else if ($object == 'version') {
670	$ver = (string)RCMAIL_VERSION;
671	if (is_file(INSTALL_PATH . '.svn/entries')) {
672	if (preg_match('/Revision:\s(\d+)/', @shell_exec('svn info'), $regs))
673	$ver .= ' [SVN r'.$regs[1].']';
674	}
675	$content = Q($ver);
676	}
677	else if ($object == 'steptitle') {
678	$content = Q($this->get_pagetitle());
679	}
680	else if ($object == 'pagetitle') {
681	$title = !empty($this->config['product_name']) ? $this->config['product_name'].' :: ' : '';
682	$title .= $this->get_pagetitle();
683	$content = Q($title);
684	}
685
686	// exec plugin hooks for this template object
687	$hook = $this->app->plugins->exec_hook("template_object_$object", $attrib + array('content' => $content));
688	return $hook['content'];
689
690	// return code for a specified eval expression
691	case 'exp':
692	$value = $this->parse_expression($attrib['expression']);
693	return eval("return Q($value);");
694
695	// return variable
696	case 'var':
697	$var = explode(':', $attrib['name']);
698	$name = $var[1];
699	$value = '';
700
701	switch ($var[0]) {
702	case 'env':
703	$value = $this->env[$name];
704	break;
705	case 'config':
706	$value = $this->config[$name];
707	if (is_array($value) && $value[$_SESSION['imap_host']]) {
708	$value = $value[$_SESSION['imap_host']];
709	}
710	break;
711	case 'request':
712	$value = get_input_value($name, RCUBE_INPUT_GPC);
713	break;
714	case 'session':
715	$value = $_SESSION[$name];
716	break;
717	case 'cookie':
718	$value = htmlspecialchars($_COOKIE[$name]);
719	break;
720	case 'browser':
721	$value = $this->browser->{$name};
722	break;
723	}
724
725	if (is_array($value)) {
726	$value = implode(', ', $value);
727	}
728
729	return Q($value);
730	break;
731	}
732	return '';
733	}
734
735	/**
736	* Include a specific file and return it's contents
737	*
738	* @param string File path
739	* @return string Contents of the processed file
740	*/
741	private function include_php($file)
742	{
743	ob_start();
744	include $file;
745	$out = ob_get_contents();
746	ob_end_clean();
747
748	return $out;
749	}
750
751	/**
752	* Create and register a button
753	*
754	* @param array Named button attributes
755	* @return string HTML button
756	* @todo Remove all inline JS calls and use jQuery instead.
757	* @todo Remove all sprintf()'s - they are pretty, but also slow.
758	*/
759	public function button($attrib)
760	{
761	static $sa_buttons = array();
762	static $s_button_count = 100;
763
764	// these commands can be called directly via url
765	$a_static_commands = array('compose', 'list', 'preferences', 'folders', 'identities');
766
767	if (!($attrib['command'] \|\| $attrib['name'])) {
768	return '';
769	}
770
771	// try to find out the button type
772	if ($attrib['type']) {
773	$attrib['type'] = strtolower($attrib['type']);
774	}
775	else {
776	$attrib['type'] = ($attrib['image'] \|\| $attrib['imagepas'] \|\| $attrib['imageact']) ? 'image' : 'link';
777	}
778	$command = $attrib['command'];
779
780	// take the button from the stack
781	if ($attrib['name'] && $sa_buttons[$attrib['name']]) {
782	$attrib = $sa_buttons[$attrib['name']];
783	}
784	else if($attrib['image'] \|\| $attrib['imageact'] \|\| $attrib['imagepas'] \|\| $attrib['class']) {
785	// add button to button stack
786	if (!$attrib['name']) {
787	$attrib['name'] = $command;
788	}
789	if (!$attrib['image']) {
790	$attrib['image'] = $attrib['imagepas'] ? $attrib['imagepas'] : $attrib['imageact'];
791	}
792	$sa_buttons[$attrib['name']] = $attrib;
793	}
794	else if ($command && $sa_buttons[$command]) {
795	// get saved button for this command/name
796	$attrib = $sa_buttons[$command];
797	}
798
799	if (!$attrib['id']) {
800	$attrib['id'] = sprintf('rcmbtn%d', $s_button_count++);
801	}
802	// get localized text for labels and titles
803	if ($attrib['title']) {
804	$attrib['title'] = Q(rcube_label($attrib['title'], $attrib['domain']));
805	}
806	if ($attrib['label']) {
807	$attrib['label'] = Q(rcube_label($attrib['label'], $attrib['domain']));
808	}
809	if ($attrib['alt']) {
810	$attrib['alt'] = Q(rcube_label($attrib['alt'], $attrib['domain']));
811	}
812
813	// set title to alt attribute for IE browsers
814	if ($this->browser->ie && !$attrib['title'] && $attrib['alt']) {
815	$attrib['title'] = $attrib['alt'];
816	}
817
818	// add empty alt attribute for XHTML compatibility
819	if (!isset($attrib['alt'])) {
820	$attrib['alt'] = '';
821	}
822
823	// register button in the system
824	if ($attrib['command']) {
825	$this->add_script(sprintf(
826	"%s.register_button('%s', '%s', '%s', '%s', '%s', '%s');",
827	JS_OBJECT_NAME,
828	$command,
829	$attrib['id'],
830	$attrib['type'],
831	$attrib['imageact'] ? $this->abs_url($attrib['imageact']) : $attrib['classact'],
832	$attrib['imagesel'] ? $this->abs_url($attrib['imagesel']) : $attrib['classsel'],
833	$attrib['imageover'] ? $this->abs_url($attrib['imageover']) : ''
834	));
835
836	// make valid href to specific buttons
837	if (in_array($attrib['command'], rcmail::$main_tasks)) {
838	$attrib['href'] = rcmail_url(null, null, $attrib['command']);
839	}
840	else if (in_array($attrib['command'], $a_static_commands)) {
841	$attrib['href'] = rcmail_url($attrib['command']);
842	}
843	else if ($attrib['command'] == 'permaurl' && !empty($this->env['permaurl'])) {
844	$attrib['href'] = $this->env['permaurl'];
845	}
846	}
847
848	// overwrite attributes
849	if (!$attrib['href']) {
850	$attrib['href'] = '#';
851	}
852	if ($command) {
853	$attrib['onclick'] = sprintf(
854	"return %s.command('%s','%s',this)",
855	JS_OBJECT_NAME,
856	$command,
857	$attrib['prop']
858	);
859	}
860
861	$out = '';
862
863	// generate image tag
864	if ($attrib['type']=='image') {
865	$attrib_str = html::attrib_string(
866	$attrib,
867	array(
868	'style', 'class', 'id', 'width', 'height', 'border', 'hspace',
869	'vspace', 'align', 'alt', 'tabindex', 'title'
870	)
871	);
872	$btn_content = sprintf('<img src="%s"%s />', $this->abs_url($attrib['image']), $attrib_str);
873	if ($attrib['label']) {
874	$btn_content .= ' '.$attrib['label'];
875	}
876	$link_attrib = array('href', 'onclick', 'onmouseover', 'onmouseout', 'onmousedown', 'onmouseup', 'target');
877	}
878	else if ($attrib['type']=='link') {
879	$btn_content = isset($attrib['content']) ? $attrib['content'] : ($attrib['label'] ? $attrib['label'] : $attrib['command']);
880	$link_attrib = array('href', 'onclick', 'title', 'id', 'class', 'style', 'tabindex', 'target');
881	}
882	else if ($attrib['type']=='input') {
883	$attrib['type'] = 'button';
884
885	if ($attrib['label']) {
886	$attrib['value'] = $attrib['label'];
887	}
888
889	$attrib_str = html::attrib_string(
890	$attrib,
891	array(
892	'type', 'value', 'onclick', 'id', 'class', 'style', 'tabindex'
893	)
894	);
895	$out = sprintf('<input%s disabled="disabled" />', $attrib_str);
896	}
897
898	// generate html code for button
899	if ($btn_content) {
900	$attrib_str = html::attrib_string($attrib, $link_attrib);
901	$out = sprintf('<a%s>%s</a>', $attrib_str, $btn_content);
902	}
903
904	return $out;
905	}
906
907
908	/* *********** common functions delivering gui objects ************ */
909
910
911	/**
912	* Create a form tag with the necessary hidden fields
913	*
914	* @param array Named tag parameters
915	* @return string HTML code for the form
916	*/
917	public function form_tag($attrib, $content = null)
918	{
919	if ($this->framed \|\| !empty($_REQUEST['_framed'])) {
920	$hiddenfield = new html_hiddenfield(array('name' => '_framed', 'value' => '1'));
921	$hidden = $hiddenfield->show();
922	}
923
924	if (!$content)
925	$attrib['noclose'] = true;
926
927	return html::tag('form',
928	$attrib + array('action' => "./", 'method' => "get"),
929	$hidden . $content,
930	array('id','class','style','name','method','action','enctype','onsubmit'));
931	}
932
933
934	/**
935	* Build a form tag with a unique request token
936	*
937	* @param array Named tag parameters including 'action' and 'task' values which will be put into hidden fields
938	* @param string Form content
939	* @return string HTML code for the form
940	*/
941	public function request_form($attrib, $content = '')
942	{
943	$hidden = new html_hiddenfield();
944	if ($attrib['task']) {
945	$hidden->add(array('name' => '_task', 'value' => $attrib['task']));
946	}
947	if ($attrib['action']) {
948	$hidden->add(array('name' => '_action', 'value' => $attrib['action']));
949	}
950
951	unset($attrib['task'], $attrib['request']);
952	$attrib['action'] = './';
953
954	// we already have a <form> tag
955	if ($attrib['form'])
956	return $hidden->show() . $content;
957	else
958	return $this->form_tag($attrib, $hidden->show() . $content);
959	}
960
961
962	/**
963	* GUI object 'username'
964	* Showing IMAP username of the current session
965	*
966	* @param array Named tag parameters (currently not used)
967	* @return string HTML code for the gui object
968	*/
969	public function current_username($attrib)
970	{
971	static $username;
972
973	// alread fetched
974	if (!empty($username)) {
975	return $username;
976	}
977
978	// get e-mail address form default identity
979	if ($sql_arr = $this->app->user->get_identity()) {
980	$username = $sql_arr['email'];
981	}
982	else {
983	$username = $this->app->user->get_username();
984	}
985
986	return $username;
987	}
988
989
990	/**
991	* GUI object 'loginform'
992	* Returns code for the webmail login form
993	*
994	* @param array Named parameters
995	* @return string HTML code for the gui object
996	*/
997	private function login_form($attrib)
998	{
999	$default_host = $this->config['default_host'];
1000
1001	$_SESSION['temp'] = true;
1002
1003	// save original url
1004	$url = get_input_value('_url', RCUBE_INPUT_POST);
1005	if (empty($url) && !preg_match('/_(task\|action)=logout/', $_SERVER['QUERY_STRING']))
1006	$url = $_SERVER['QUERY_STRING'];
1007
1008	$input_user = new html_inputfield(array('name' => '_user', 'id' => 'rcmloginuser') + $attrib);
1009	$input_pass = new html_passwordfield(array('name' => '_pass', 'id' => 'rcmloginpwd') + $attrib);
1010	$input_action = new html_hiddenfield(array('name' => '_action', 'value' => 'login'));
1011	$input_tzone = new html_hiddenfield(array('name' => '_timezone', 'id' => 'rcmlogintz', 'value' => '_default_'));
1012	$input_url = new html_hiddenfield(array('name' => '_url', 'id' => 'rcmloginurl', 'value' => $url));
1013	$input_host = null;
1014
1015	if (is_array($default_host)) {
1016	$input_host = new html_select(array('name' => '_host', 'id' => 'rcmloginhost'));
1017
1018	foreach ($default_host as $key => $value) {
1019	if (!is_array($value)) {
1020	$input_host->add($value, (is_numeric($key) ? $value : $key));
1021	}
1022	else {
1023	$input_host = null;
1024	break;
1025	}
1026	}
1027	}
1028	else if (empty($default_host)) {
1029	$input_host = new html_inputfield(array('name' => '_host', 'id' => 'rcmloginhost') + $attrib);
1030	}
1031
1032	$form_name = !empty($attrib['form']) ? $attrib['form'] : 'form';
1033	$this->add_gui_object('loginform', $form_name);
1034
1035	// create HTML table with two cols
1036	$table = new html_table(array('cols' => 2));
1037
1038	$table->add('title', html::label('rcmloginuser', Q(rcube_label('username'))));
1039	$table->add(null, $input_user->show(get_input_value('_user', RCUBE_INPUT_POST)));
1040
1041	$table->add('title', html::label('rcmloginpwd', Q(rcube_label('password'))));
1042	$table->add(null, $input_pass->show());
1043
1044	// add host selection row
1045	if (is_object($input_host)) {
1046	$table->add('title', html::label('rcmloginhost', Q(rcube_label('server'))));
1047	$table->add(null, $input_host->show(get_input_value('_host', RCUBE_INPUT_POST)));
1048	}
1049
1050	$out = $input_action->show();
1051	$out .= $input_tzone->show();
1052	$out .= $input_url->show();
1053	$out .= $table->show();
1054
1055	// surround html output with a form tag
1056	if (empty($attrib['form'])) {
1057	$out = $this->form_tag(array('name' => $form_name, 'method' => "post"), $out);
1058	}
1059
1060	return $out;
1061	}
1062
1063
1064	/**
1065	* GUI object 'searchform'
1066	* Returns code for search function
1067	*
1068	* @param array Named parameters
1069	* @return string HTML code for the gui object
1070	*/
1071	private function search_form($attrib)
1072	{
1073	// add some labels to client
1074	$this->add_label('searching');
1075
1076	$attrib['name'] = '_q';
1077
1078	if (empty($attrib['id'])) {
1079	$attrib['id'] = 'rcmqsearchbox';
1080	}
1081	if ($attrib['type'] == 'search' && !$this->browser->khtml) {
1082	unset($attrib['type'], $attrib['results']);
1083	}
1084
1085	$input_q = new html_inputfield($attrib);
1086	$out = $input_q->show();
1087
1088	$this->add_gui_object('qsearchbox', $attrib['id']);
1089
1090	// add form tag around text field
1091	if (empty($attrib['form'])) {
1092	$out = $this->form_tag(array(
1093	'name' => "rcmqsearchform",
1094	'onsubmit' => JS_OBJECT_NAME . ".command('search');return false;",
1095	'style' => "display:inline"),
1096	$out);
1097	}
1098
1099	return $out;
1100	}
1101
1102
1103	/**
1104	* Builder for GUI object 'message'
1105	*
1106	* @param array Named tag parameters
1107	* @return string HTML code for the gui object
1108	*/
1109	private function message_container($attrib)
1110	{
1111	if (isset($attrib['id']) === false) {
1112	$attrib['id'] = 'rcmMessageContainer';
1113	}
1114
1115	$this->add_gui_object('message', $attrib['id']);
1116	return html::div($attrib, "");
1117	}
1118
1119
1120	/**
1121	* GUI object 'charsetselector'
1122	*
1123	* @param array Named parameters for the select tag
1124	* @return string HTML code for the gui object
1125	*/
1126	static function charset_selector($attrib)
1127	{
1128	// pass the following attributes to the form class
1129	$field_attrib = array('name' => '_charset');
1130	foreach ($attrib as $attr => $value) {
1131	if (in_array($attr, array('id', 'class', 'style', 'size', 'tabindex'))) {
1132	$field_attrib[$attr] = $value;
1133	}
1134	}
1135	$charsets = array(
1136	'US-ASCII' => 'ASCII (English)',
1137	'EUC-JP' => 'EUC-JP (Japanese)',
1138	'EUC-KR' => 'EUC-KR (Korean)',
1139	'BIG5' => 'BIG5 (Chinese)',
1140	'GB2312' => 'GB2312 (Chinese)',
1141	'ISO-2022-JP' => 'ISO-2022-JP (Japanese)',
1142	'ISO-8859-1' => 'ISO-8859-1 (Latin-1)',
1143	'ISO-8859-2' => 'ISO-8895-2 (Central European)',
1144	'ISO-8859-7' => 'ISO-8859-7 (Greek)',
1145	'ISO-8859-9' => 'ISO-8859-9 (Turkish)',
1146	'Windows-1251' => 'Windows-1251 (Cyrillic)',
1147	'Windows-1252' => 'Windows-1252 (Western)',
1148	'Windows-1255' => 'Windows-1255 (Hebrew)',
1149	'Windows-1256' => 'Windows-1256 (Arabic)',
1150	'Windows-1257' => 'Windows-1257 (Baltic)',
1151	'UTF-8' => 'UTF-8'
1152	);
1153
1154	$select = new html_select($field_attrib);
1155	$select->add(array_values($charsets), array_keys($charsets));
1156
1157	$set = $_POST['_charset'] ? $_POST['_charset'] : $this->get_charset();
1158	return $select->show($set);
1159	}
1160
1161	} // end class rcube_template
1162
1163

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