tasklist_ui.php
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tasklist_ui.php
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	<?php
	/**
	* User Interface class for the Tasklist plugin
	*
	* @version @package_version@
	* @author Thomas Bruederli <bruederli@kolabsys.com>
	*
	* Copyright (C) 2012-2015, Kolab Systems AG <contact@kolabsys.com>
	*
	* 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.
	*
	* You should have received a copy of the GNU Affero General Public License
	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	*/


	class tasklist_ui
	{
	private $rc;
	private $plugin;
	private $ready = false;
	private $gui_objects = array();

	function __construct($plugin)
	{
	$this->plugin = $plugin;
	$this->rc = $plugin->rc;
	}

	/**
	* Calendar UI initialization and requests handlers
	*/
	public function init()
	{
	if ($this->ready) {
	return;
	}

	// add taskbar button
	$this->plugin->add_button(array(
	'command' => 'tasks',
	'class' => 'button-tasklist',
	'classsel' => 'button-tasklist button-selected',
	'innerclass' => 'button-inner',
	'label' => 'tasklist.navtitle',
	'type' => 'link'
	), 'taskbar');

	$this->plugin->include_stylesheet($this->plugin->local_skin_path() . '/tasklist.css');

	if ($this->rc->task == 'mail' \|\| $this->rc->task == 'tasks') {
	$this->plugin->include_script('tasklist_base.js');

	// copy config to client
	$this->rc->output->set_env('tasklist_settings', $this->load_settings());

	// initialize attendees autocompletion
	$this->rc->autocomplete_init();
	}

	$this->ready = true;
	}

	/**
	*
	*/
	function load_settings()
	{
	$settings = array();

	$settings['invite_shared'] = (int)$this->rc->config->get('calendar_allow_invite_shared', 0);
	$settings['itip_notify'] = (int)$this->rc->config->get('calendar_itip_send_option', 3);
	$settings['sort_col'] = $this->rc->config->get('tasklist_sort_col', '');
	$settings['sort_order'] = $this->rc->config->get('tasklist_sort_order', 'asc');

	// get user identity to create default attendee
	foreach ($this->rc->user->list_emails() as $rec) {
	if (!$identity)
	$identity = $rec;

	$identity['emails'][] = $rec['email'];
	$settings['identities'][$rec['identity_id']] = $rec['email'];
	}

	$identity['emails'][] = $this->rc->user->get_username();
	$settings['identity'] = array(
	'name' => $identity['name'],
	'email' => strtolower($identity['email']),
	'emails' => ';' . strtolower(join(';', $identity['emails']))
	);

	if ($list = rcube_utils::get_input_value('_list', rcube_utils::INPUT_GPC)) {
	$settings['selected_list'] = $list;
	}
	if ($list && ($id = rcube_utils::get_input_value('_id', rcube_utils::INPUT_GPC))) {
	$settings['selected_id'] = $id;

	// check if the referenced task is completed
	$task = $this->plugin->driver->get_task(array('id' => $id, 'list' => $list));
	if ($task && $this->plugin->driver->is_complete($task)) {
	$settings['selected_filter'] = 'complete';
	}
	}
	else if ($filter = rcube_utils::get_input_value('_filter', rcube_utils::INPUT_GPC)) {
	$settings['selected_filter'] = $filter;
	}

	return $settings;
	}

	/**
	* Render a HTML select box for user identity selection
	*/
	function identity_select($attrib = array())
	{
	$attrib['name'] = 'identity';
	$select = new html_select($attrib);
	$identities = $this->rc->user->list_emails();

	foreach ($identities as $ident) {
	$select->add(format_email_recipient($ident['email'], $ident['name']), $ident['identity_id']);
	}

	return $select->show(null);
	}

	/**
	* Register handler methods for the template engine
	*/
	public function init_templates()
	{
	$this->plugin->register_handler('plugin.tasklists', array($this, 'tasklists'));
	$this->plugin->register_handler('plugin.tasklist_select', array($this, 'tasklist_select'));
	$this->plugin->register_handler('plugin.status_select', array($this, 'status_select'));
	$this->plugin->register_handler('plugin.searchform', array($this->rc->output, 'search_form'));
	$this->plugin->register_handler('plugin.quickaddform', array($this, 'quickadd_form'));
	$this->plugin->register_handler('plugin.tasks', array($this, 'tasks_resultview'));
	$this->plugin->register_handler('plugin.tags_editline', array($this, 'tags_editline'));
	$this->plugin->register_handler('plugin.alarm_select', array($this, 'alarm_select'));
	$this->plugin->register_handler('plugin.recurrence_form', array($this->plugin->lib, 'recurrence_form'));
	$this->plugin->register_handler('plugin.attendees_list', array($this, 'attendees_list'));
	$this->plugin->register_handler('plugin.attendees_form', array($this, 'attendees_form'));
	$this->plugin->register_handler('plugin.identity_select', array($this, 'identity_select'));
	$this->plugin->register_handler('plugin.edit_attendees_notify', array($this, 'edit_attendees_notify'));
	$this->plugin->register_handler('plugin.task_rsvp_buttons', array($this->plugin->itip, 'itip_rsvp_buttons'));
	$this->plugin->register_handler('plugin.object_changelog_table', array('libkolab', 'object_changelog_table'));
	$this->plugin->register_handler('plugin.tasks_export_form', array($this, 'tasks_export_form'));
	$this->plugin->register_handler('plugin.tasks_import_form', array($this, 'tasks_import_form'));

	kolab_attachments_handler::ui();

	$this->plugin->include_script('tasklist.js');
	$this->plugin->api->include_script('libkolab/libkolab.js');
	}

	/**
	*
	*/
	public function tasklists($attrib = array())
	{
	$tree = true;
	$jsenv = array();
	$lists = $this->plugin->driver->get_lists(0, $tree);

	if (empty($attrib['id'])) {
	$attrib['id'] = 'rcmtasklistslist';
	}

	// walk folder tree
	if (is_object($tree)) {
	$html = $this->list_tree_html($tree, $lists, $jsenv, $attrib);
	}
	else {
	// fall-back to flat folder listing
	$attrib['class'] .= ' flat';

	$html = '';
	foreach ((array)$lists as $id => $prop) {
	if ($attrib['activeonly'] && !$prop['active'])
	continue;

	$html .= html::tag('li', array(
	'id' => 'rcmlitasklist' . rcube_utils::html_identifier($id),
	'class' => $prop['group'],
	),
	$this->tasklist_list_item($id, $prop, $jsenv, $attrib['activeonly'])
	);
	}
	}

	$this->rc->output->include_script('treelist.js');

	$this->rc->output->set_env('source', rcube_utils::get_input_value('source', rcube_utils::INPUT_GET));
	$this->rc->output->set_env('tasklists', $jsenv);
	$this->register_gui_object('tasklistslist', $attrib['id']);

	return html::tag('ul', $attrib, $html, html::$common_attrib);
	}

	/**
	* Return html for a structured list <ul> for the folder tree
	*/
	public function list_tree_html($node, $data, &$jsenv, $attrib)
	{
	$out = '';
	foreach ($node->children as $folder) {
	$id = $folder->id;
	$prop = $data[$id];
	$is_collapsed = false; // TODO: determine this somehow?

	$content = $this->tasklist_list_item($id, $prop, $jsenv, $attrib['activeonly']);

	if (!empty($folder->children)) {
	$content .= html::tag('ul', array('style' => ($is_collapsed ? "display:none;" : null)),
	$this->list_tree_html($folder, $data, $jsenv, $attrib));
	}

	if (strlen($content)) {
	$out .= html::tag('li', array(
	'id' => 'rcmlitasklist' . rcube_utils::html_identifier($id),
	'class' => $prop['group'] . ($prop['virtual'] ? ' virtual' : ''),
	),
	$content);
	}
	}

	return $out;
	}

	/**
	* Helper method to build a tasklist item (HTML content and js data)
	*/
	public function tasklist_list_item($id, $prop, &$jsenv, $activeonly = false)
	{
	// enrich list properties with settings from the driver
	if (!$prop['virtual']) {
	unset($prop['user_id']);
	$prop['alarms'] = $this->plugin->driver->alarms;
	$prop['undelete'] = $this->plugin->driver->undelete;
	$prop['sortable'] = $this->plugin->driver->sortable;
	$prop['attachments'] = $this->plugin->driver->attachments;
	$prop['attendees'] = $this->plugin->driver->attendees;
	$prop['caldavurl'] = $this->plugin->driver->tasklist_caldav_url($prop);
	$jsenv[$id] = $prop;
	}

	$classes = array('tasklist');
	$title = $prop['title'] ?: ($prop['name'] != $prop['listname'] \|\| strlen($prop['name']) > 25 ?
	html_entity_decode($prop['name'], ENT_COMPAT, RCUBE_CHARSET) : '');

	if ($prop['virtual'])
	$classes[] = 'virtual';
	else if (!$prop['editable'])
	$classes[] = 'readonly';
	if ($prop['subscribed'])
	$classes[] = 'subscribed';
	if ($prop['class'])
	$classes[] = $prop['class'];

	if (!$activeonly \|\| $prop['active']) {
	$label_id = 'tl:' . $id;
	$chbox = html::tag('input', array(
	'type' => 'checkbox',
	'name' => '_list[]',
	'value' => $id,
	'checked' => $prop['active'],
	'title' => $this->plugin->gettext('activate'),
	'aria-labelledby' => $label_id
	));

	return html::div(join(' ', $classes),
	html::a(array('class' => 'listname', 'title' => $title, 'href' => '#', 'id' => $label_id), $prop['listname'] ?: $prop['name']) .
	($prop['virtual'] ? '' : $chbox . html::span('actions',
	($prop['removable'] ? html::a(array('href' => '#', 'class' => 'remove', 'title' => $this->plugin->gettext('removelist')), ' ') : '')
	. html::a(array('href' => '#', 'class' => 'quickview', 'title' => $this->plugin->gettext('focusview'), 'role' => 'checkbox', 'aria-checked' => 'false'), ' ')
	. (isset($prop['subscribed']) ? html::a(array('href' => '#', 'class' => 'subscribed', 'title' => $this->plugin->gettext('tasklistsubscribe'), 'role' => 'checkbox', 'aria-checked' => $prop['subscribed'] ? 'true' : 'false'), ' ') : '')
	)
	)
	);
	}

	return '';
	}

	/**
	* Render HTML form for task status selector
	*/
	function status_select($attrib = array())
	{
	$attrib['name'] = 'status';
	$select = new html_select($attrib);
	$select->add('---', '');
	$select->add($this->plugin->gettext('status-needs-action'), 'NEEDS-ACTION');
	$select->add($this->plugin->gettext('status-in-process'), 'IN-PROCESS');
	$select->add($this->plugin->gettext('status-completed'), 'COMPLETED');
	$select->add($this->plugin->gettext('status-cancelled'), 'CANCELLED');

	return $select->show(null);
	}

	/**
	* Render a HTML select box for list selection
	*/
	function tasklist_select($attrib = array())
	{
	if (empty($attrib['name'])) {
	$attrib['name'] = 'list';
	}

	$attrib['is_escaped'] = true;
	$select = new html_select($attrib);
	$default = null;

	foreach ((array) $attrib['extra'] as $id => $name) {
	$select->add($name, $id);
	}

	foreach ((array)$this->plugin->driver->get_lists() as $id => $prop) {
	if ($prop['editable'] \|\| strpos($prop['rights'], 'i') !== false) {
	$select->add($prop['name'], $id);
	if (!$default \|\| $prop['default'])
	$default = $id;
	}
	}

	return $select->show($default);
	}

	function tasklist_editform($action, $list = array())
	{
	$this->action = $action;
	$this->list = $list;

	$this->rc->output->set_env('pagetitle', $this->plugin->gettext('arialabeltasklistform'));
	$this->rc->output->add_handler('folderform', array($this, 'tasklistform'));
	$this->rc->output->send('libkolab.folderform');
	}

	function tasklistform($attrib)
	{
	$fields = array(
	'name' => array(
	'id' => 'taskedit-tasklistname',
	'label' => $this->plugin->gettext('listname'),
	'value' => html::tag('input', array('id' => 'taskedit-tasklistname', 'name' => 'name', 'type' => 'text', 'class' => 'text', 'size' => 40)),
	),
	/*
	'color' => array(
	'id' => 'taskedit-color',
	'label' => $this->plugin->gettext('color'),
	'value' => html::tag('input', array('id' => 'taskedit-color', 'name' => 'color', 'type' => 'text', 'class' => 'text colorpicker', 'size' => 6)),
	),
	*/
	'showalarms' => array(
	'id' => 'taskedit-showalarms',
	'label' => $this->plugin->gettext('showalarms'),
	'value' => html::tag('input', array('id' => 'taskedit-showalarms', 'name' => 'color', 'type' => 'checkbox')),
	),
	);

	return html::tag('form', $attrib + array('action' => "#", 'method' => "post", 'id' => 'tasklisteditform'),
	$this->plugin->driver->tasklist_edit_form($this->action, $this->list, $fields)
	);
	}

	/**
	* Render HTML form for alarm configuration
	*/
	function alarm_select($attrib = array())
	{
	$attrib['_type'] = 'task';
	return $this->plugin->lib->alarm_select($attrib, $this->plugin->driver->alarm_types, $this->plugin->driver->alarm_absolute);
	}

	/**
	*
	*/
	function quickadd_form($attrib)
	{
	$attrib += array('action' => $this->rc->url('add'), 'method' => 'post', 'id' => 'quickaddform');

	$label = html::label(array('for' => 'quickaddinput', 'class' => 'voice'), $this->plugin->gettext('quickaddinput'));
	$input = new html_inputfield(array('name' => 'text', 'id' => 'quickaddinput'));
	$button = html::tag('input', array(
	'type' => 'submit',
	'value' => '+',
	'title' => $this->plugin->gettext('createtask'),
	'class' => 'button mainaction'
	));

	$this->register_gui_object('quickaddform', $attrib['id']);
	return html::tag('form', $attrib, $label . $input->show() . $button);
	}

	/**
	* The result view
	*/
	function tasks_resultview($attrib)
	{
	$attrib += array('id' => 'rcmtaskslist');

	$this->register_gui_object('resultlist', $attrib['id']);

	unset($attrib['name']);
	return html::tag('ul', $attrib, '');
	}

	/**
	* Interactive UI element to add/remove tags
	*/
	function tags_editline($attrib)
	{
	$attrib += array('id' => 'rcmtasktagsedit');
	$this->register_gui_object('edittagline', $attrib['id']);

	$input = new html_inputfield(array('name' => 'tags[]', 'class' => 'tag', 'size' => $attrib['size'], 'tabindex' => $attrib['tabindex']));
	unset($attrib['tabindex']);
	return html::div($attrib, $input->show(''));
	}

	/**
	*
	*/
	function attendees_list($attrib = array())
	{
	// add "noreply" checkbox to attendees table only
	$invitations = strpos($attrib['id'], 'attend') !== false;

	$invite = new html_checkbox(array('value' => 1, 'id' => 'edit-attendees-invite'));
	$table = new html_table(array('cols' => 4 + intval($invitations), 'border' => 0, 'cellpadding' => 0, 'class' => 'rectable'));

	// $table->add_header('role', $this->plugin->gettext('role'));
	$table->add_header('name', $this->plugin->gettext($attrib['coltitle'] ?: 'attendee'));
	$table->add_header('confirmstate', $this->plugin->gettext('confirmstate'));
	if ($invitations) {
	$table->add_header(array('class' => 'invite', 'title' => $this->plugin->gettext('sendinvitations')),
	$invite->show(1) . html::label('edit-attendees-invite', html::span('inner', $this->plugin->gettext('sendinvitations'))));
	}
	$table->add_header('options', '');

	// hide invite column if disabled by config
	$itip_notify = (int)$this->rc->config->get('calendar_itip_send_option', 3);
	if ($invitations && !($itip_notify & 2)) {
	$css = sprintf('#%s td.invite, #%s th.invite { display:none !important }', $attrib['id'], $attrib['id']);
	$this->rc->output->add_footer(html::tag('style', array('type' => 'text/css'), $css));
	}

	return $table->show($attrib);
	}

	/**
	*
	*/
	function attendees_form($attrib = array())
	{
	$input = new html_inputfield(array('name' => 'participant', 'id' => 'edit-attendee-name', 'size' => $attrib['size'], 'class' => 'form-control'));
	$textarea = new html_textarea(array('name' => 'comment', 'id' => 'edit-attendees-comment',
	'rows' => 4, 'cols' => 55, 'title' => $this->plugin->gettext('itipcommenttitle'), 'class' => 'form-control'));

	return html::div($attrib,
	html::div('form-searchbar', $input->show() . " " .
	html::tag('input', array('type' => 'button', 'class' => 'button', 'id' => 'edit-attendee-add', 'value' => $this->plugin->gettext('addattendee')))
	// . " " . html::tag('input', array('type' => 'button', 'class' => 'button', 'id' => 'edit-attendee-schedule', 'value' => $this->plugin->gettext('scheduletime').'...'))
	) .
	html::p('attendees-commentbox', html::label('edit-attendees-comment', $this->plugin->gettext('itipcomment')) . $textarea->show())
	);
	}

	/**
	*
	*/
	function edit_attendees_notify($attrib = array())
	{
	$checkbox = new html_checkbox(array('name' => '_notify', 'id' => 'edit-attendees-donotify', 'value' => 1, 'class' => 'pretty-checkbox'));
	return html::div($attrib, html::label(null, $checkbox->show(1) . ' ' . $this->plugin->gettext('sendnotifications')));
	}

	/**
	* Form for uploading and importing tasks
	*/
	function tasks_import_form($attrib = array())
	{
	if (!$attrib['id']) {
	$attrib['id'] = 'rcmImportForm';
	}

	// Get max filesize, enable upload progress bar
	$max_filesize = $this->rc->upload_init();
	$accept = '.ics, text/calendar, text/x-vcalendar, application/ics';
	if (class_exists('ZipArchive', false)) {
	$accept .= ', .zip, application/zip';
	}

	$input = new html_inputfield(array(
	'id' => 'importfile',
	'type' => 'file',
	'name' => '_data',
	'size' => $attrib['uploadfieldsize'],
	'accept' => $accept
	));

	$html = html::div('form-section form-group row',
	html::label(array('class' => 'col-sm-4 col-form-label', 'for' => 'importfile'), rcube::Q($this->rc->gettext('importfromfile')))
	. html::div('col-sm-8', $input->show()
	. html::div('hint', $this->rc->gettext(array('name' => 'maxuploadsize', 'vars' => array('size' => $max_filesize)))))
	);

	$html .= html::div('form-section form-group row',
	html::label(array('for' => 'task-import-list', 'class' => 'col-sm-4 col-form-label'), $this->plugin->gettext('list'))
	. html::div('col-sm-8', $this->tasklist_select(array('name' => 'source', 'id' => 'task-import-list', 'editable' => true)))
	);

	$this->rc->output->add_gui_object('importform', $attrib['id']);
	$this->rc->output->add_label('import', 'importerror');

	return html::tag('p', null, $this->plugin->gettext('importtext'))
	.html::tag('form', array(
	'action' => $this->rc->url(array('task' => 'tasklist', 'action' => 'import')),
	'method' => 'post',
	'enctype' => 'multipart/form-data',
	'id' => $attrib['id'],
	),
	$html
	);
	}

	/**
	* Form to select options for exporting tasks
	*/
	function tasks_export_form($attrib = array())
	{
	if (!$attrib['id']) {
	$attrib['id'] = 'rcmTaskExportForm';
	}

	$html .= html::div('form-section form-group row',
	html::label(array('for' => 'task-export-list', 'class' => 'col-sm-4 col-form-label'), $this->plugin->gettext('list'))
	. html::div('col-sm-8', $this->tasklist_select(array(
	'name' => 'source',
	'id' => 'task-export-list',
	'extra' => array('' => '- ' . $this->plugin->gettext('currentview') . ' -'),
	)))
	);

	$checkbox = new html_checkbox(array('name' => 'attachments', 'id' => 'task-export-attachments', 'value' => 1, 'class' => 'form-check-input pretty-checkbox'));
	$html .= html::div('form-section row form-check',
	html::label(array('for' => 'task-export-attachments', 'class' => 'col-sm-4 col-form-label'), $this->plugin->gettext('exportattachments'))
	. html::div('col-sm-8', $checkbox->show(1))
	);

	$this->register_gui_object('exportform', $attrib['id']);

	return html::tag('form', array(
	'action' => $this->rc->url(array('task' => 'tasklist', 'action' => 'export')),
	'method' => 'post', 'id' => $attrib['id']
	),
	$html
	);
	}

	/**
	* Wrapper for rcube_output_html::add_gui_object()
	*/
	function register_gui_object($name, $id)
	{
	$this->gui_objects[$name] = $id;
	$this->rc->output->add_gui_object($name, $id);
	}

	/**
	* Getter for registered gui objects.
	* (for manual registration when loading the inline UI)
	*/
	function get_gui_objects()
	{
	return $this->gui_objects;
	}
	}

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