Tagging plugins for 0.8-betav0.8-beta

1 files changed, 786 insertions, 0 deletions

diff --git a/plugins/managesieve/managesieve.js b/plugins/managesieve/managesieve.js
new file mode 100644
index 000000000..a34a09f6c
--- /dev/null
+++ b/plugins/managesieve/managesieve.js
@@ -0,0 +1,786 @@
+/* (Manage)Sieve Filters */
+
+if (window.rcmail) {
+  rcmail.addEventListener('init', function(evt) {
+    // add managesieve-create command to message_commands array,
+    // so it's state will be updated on message selection/unselection
+    if (rcmail.env.task == 'mail') {
+      if (rcmail.env.action != 'show')
+        rcmail.env.message_commands.push('managesieve-create');
+      else
+        rcmail.enable_command('managesieve-create', true);
+    }
+    else {
+      var tab = $('<span>').attr('id', 'settingstabpluginmanagesieve').addClass('tablink filter'),
+        button = $('<a>').attr('href', rcmail.env.comm_path+'&_action=plugin.managesieve')
+          .attr('title', rcmail.gettext('managesieve.managefilters'))
+          .html(rcmail.gettext('managesieve.filters'))
+          .appendTo(tab);
+
+      // add tab
+      rcmail.add_element(tab, 'tabs');
+    }
+
+    if (rcmail.env.task == 'mail' || rcmail.env.action.indexOf('plugin.managesieve') != -1) {
+      // Create layer for form tips
+      if (!rcmail.env.framed) {
+        rcmail.env.ms_tip_layer = $('<div id="managesieve-tip" class="popupmenu"></div>');
+        rcmail.env.ms_tip_layer.appendTo(document.body);
+      }
+    }
+
+    // register commands
+    rcmail.register_command('plugin.managesieve-save', function() { rcmail.managesieve_save() });
+    rcmail.register_command('plugin.managesieve-act', function() { rcmail.managesieve_act() });
+    rcmail.register_command('plugin.managesieve-add', function() { rcmail.managesieve_add() });
+    rcmail.register_command('plugin.managesieve-del', function() { rcmail.managesieve_del() });
+    rcmail.register_command('plugin.managesieve-move', function() { rcmail.managesieve_move() });
+    rcmail.register_command('plugin.managesieve-setadd', function() { rcmail.managesieve_setadd() });
+    rcmail.register_command('plugin.managesieve-setdel', function() { rcmail.managesieve_setdel() });
+    rcmail.register_command('plugin.managesieve-setact', function() { rcmail.managesieve_setact() });
+    rcmail.register_command('plugin.managesieve-setget', function() { rcmail.managesieve_setget() });
+
+    if (rcmail.env.action == 'plugin.managesieve' || rcmail.env.action == 'plugin.managesieve-save') {
+      if (rcmail.gui_objects.sieveform) {
+        rcmail.enable_command('plugin.managesieve-save', true);
+
+        // small resize for header element
+        $('select[name="_header[]"]', rcmail.gui_objects.sieveform).each(function() {
+          if (this.value == '...') this.style.width = '40px';
+        });
+
+        // resize dialog window
+        if (rcmail.env.action == 'plugin.managesieve' && rcmail.env.task == 'mail') {
+          parent.rcmail.managesieve_dialog_resize(rcmail.gui_objects.sieveform);
+        }
+
+        $('input[type="text"]:first', rcmail.gui_objects.sieveform).focus();
+      }
+      else {
+        rcmail.enable_command('plugin.managesieve-add', 'plugin.managesieve-setadd', !rcmail.env.sieveconnerror);
+      }
+
+      var i, p = rcmail, setcnt, set = rcmail.env.currentset;
+
+      if (rcmail.gui_objects.filterslist) {
+        rcmail.filters_list = new rcube_list_widget(rcmail.gui_objects.filterslist,
+          {multiselect:false, draggable:true, keyboard:false});
+        rcmail.filters_list.addEventListener('select', function(e) { p.managesieve_select(e); });
+        rcmail.filters_list.addEventListener('dragstart', function(e) { p.managesieve_dragstart(e); });
+        rcmail.filters_list.addEventListener('dragend', function(e) { p.managesieve_dragend(e); });
+        rcmail.filters_list.row_init = function (row) {
+          row.obj.onmouseover = function() { p.managesieve_focus_filter(row); };
+          row.obj.onmouseout = function() { p.managesieve_unfocus_filter(row); };
+        };
+        rcmail.filters_list.init();
+        rcmail.filters_list.focus();
+      }
+
+      if (rcmail.gui_objects.filtersetslist) {
+        rcmail.filtersets_list = new rcube_list_widget(rcmail.gui_objects.filtersetslist, {multiselect:false, draggable:false, keyboard:false});
+        rcmail.filtersets_list.addEventListener('select', function(e) { p.managesieve_setselect(e); });
+        rcmail.filtersets_list.init();
+        rcmail.filtersets_list.focus();
+
+        if (set != null) {
+          set = rcmail.managesieve_setid(set);
+          rcmail.filtersets_list.shift_start = set;
+          rcmail.filtersets_list.highlight_row(set, false);
+        }
+
+        setcnt = rcmail.filtersets_list.rowcount;
+        rcmail.enable_command('plugin.managesieve-set', true);
+        rcmail.enable_command('plugin.managesieve-setact', 'plugin.managesieve-setget', setcnt);
+        rcmail.enable_command('plugin.managesieve-setdel', setcnt > 1);
+
+        // Fix dragging filters over sets list
+        $('tr', rcmail.gui_objects.filtersetslist).each(function (i, e) { p.managesieve_fixdragend(e); });
+      }
+    }
+    if (rcmail.gui_objects.sieveform && rcmail.env.rule_disabled)
+      $('#disabled').attr('checked', true);
+  });
+};
+
+/*********************************************************/
+/*********       Managesieve UI methods          *********/
+/*********************************************************/
+
+rcube_webmail.prototype.managesieve_add = function()
+{
+  this.load_managesieveframe();
+  this.filters_list.clear_selection();
+};
+
+rcube_webmail.prototype.managesieve_del = function()
+{
+  var id = this.filters_list.get_single_selection();
+  if (confirm(this.get_label('managesieve.filterdeleteconfirm'))) {
+    var lock = this.set_busy(true, 'loading');
+    this.http_post('plugin.managesieve',
+      '_act=delete&_fid='+this.filters_list.rows[id].uid, lock);
+  }
+};
+
+rcube_webmail.prototype.managesieve_act = function()
+{
+  var id = this.filters_list.get_single_selection(),
+    lock = this.set_busy(true, 'loading');
+
+  this.http_post('plugin.managesieve',
+    '_act=act&_fid='+this.filters_list.rows[id].uid, lock);
+};
+
+// Filter selection
+rcube_webmail.prototype.managesieve_select = function(list)
+{
+  var id = list.get_single_selection();
+  if (id != null)
+    this.load_managesieveframe(list.rows[id].uid);
+};
+
+// Set selection
+rcube_webmail.prototype.managesieve_setselect = function(list)
+{
+  this.show_contentframe(false);
+  this.filters_list.clear(true);
+  this.enable_command('plugin.managesieve-setdel', list.rowcount > 1);
+  this.enable_command( 'plugin.managesieve-setact', 'plugin.managesieve-setget', true);
+
+  var id = list.get_single_selection();
+  if (id != null)
+    this.managesieve_list(this.env.filtersets[id]);
+};
+
+rcube_webmail.prototype.managesieve_rowid = function(id)
+{
+  var i, rows = this.filters_list.rows;
+
+  for (i=0; i<rows.length; i++)
+    if (rows[i] != null && rows[i].uid == id)
+      return i;
+};
+
+// Returns set's identifier
+rcube_webmail.prototype.managesieve_setid = function(name)
+{
+  for (var i in this.env.filtersets)
+    if (this.env.filtersets[i] == name)
+      return i;
+};
+
+// Filters listing request
+rcube_webmail.prototype.managesieve_list = function(script)
+{
+  var lock = this.set_busy(true, 'loading');
+
+  this.http_post('plugin.managesieve', '_act=list&_set='+urlencode(script), lock);
+};
+
+// Script download request
+rcube_webmail.prototype.managesieve_setget = function()
+{
+  var id = this.filtersets_list.get_single_selection(),
+    script = this.env.filtersets[id];
+
+  location.href = this.env.comm_path+'&_action=plugin.managesieve&_act=setget&_set='+urlencode(script);
+};
+
+// Set activate/deactivate request
+rcube_webmail.prototype.managesieve_setact = function()
+{
+  var id = this.filtersets_list.get_single_selection(),
+   lock = this.set_busy(true, 'loading'),
+    script = this.env.filtersets[id],
+    action = $('#rcmrow'+id).hasClass('disabled') ? 'setact' : 'deact';
+
+  this.http_post('plugin.managesieve', '_act='+action+'&_set='+urlencode(script), lock);
+};
+
+// Set delete request
+rcube_webmail.prototype.managesieve_setdel = function()
+{
+  if (!confirm(this.get_label('managesieve.setdeleteconfirm')))
+    return false;
+
+  var id = this.filtersets_list.get_single_selection(),
+    lock = this.set_busy(true, 'loading'),
+    script = this.env.filtersets[id];
+
+  this.http_post('plugin.managesieve', '_act=setdel&_set='+urlencode(script), lock);
+};
+
+// Set add request
+rcube_webmail.prototype.managesieve_setadd = function()
+{
+  this.filters_list.clear_selection();
+  this.enable_command('plugin.managesieve-act', 'plugin.managesieve-del', false);
+
+  if (this.env.contentframe && window.frames && window.frames[this.env.contentframe]) {
+    var lock = this.set_busy(true, 'loading');
+    target = window.frames[this.env.contentframe];
+    target.location.href = this.env.comm_path+'&_action=plugin.managesieve&_framed=1&_newset=1&_unlock='+lock;
+  }
+};
+
+rcube_webmail.prototype.managesieve_updatelist = function(action, o)
+{
+  this.set_busy(true);
+
+  switch (action) {
+
+    // Delete filter row
+    case 'del':
+      var i, list = this.filters_list, rows = list.rows;
+
+      list.remove_row(this.managesieve_rowid(o.id));
+      list.clear_selection();
+      this.show_contentframe(false);
+      this.enable_command('plugin.managesieve-del', 'plugin.managesieve-act', false);
+
+      // re-numbering filters
+      for (i=0; i<rows.length; i++) {
+        if (rows[i] != null && rows[i].uid > o.id)
+          rows[i].uid = rows[i].uid-1;
+      }
+
+      break;
+
+    // Update filter row
+    case 'update':
+      var i, row = $('#rcmrow'+o.id);
+
+      if (o.name)
+        $('td', row).html(o.name);
+      if (o.disabled)
+        row.addClass('disabled');
+      else
+        row.removeClass('disabled');
+
+      $('#disabled', $('iframe').contents()).prop('checked', o.disabled);
+
+      break;
+
+    // Add filter row to the list
+    case 'add':
+      var list = this.filters_list,
+        row = $('<tr><td class="name"></td></tr>');
+
+      $('td', row).html(o.name);
+      row.attr('id', 'rcmrow'+o.id);
+      if (o.disabled)
+        row.addClass('disabled');
+
+      list.insert_row(row.get(0));
+      list.highlight_row(o.id);
+
+      this.enable_command('plugin.managesieve-del', 'plugin.managesieve-act', true);
+
+      break;
+
+    // Filling rules list
+    case 'list':
+      var i, tr, td, el, list = this.filters_list;
+
+      if (o.clear)
+        list.clear();
+
+      for (i in o.list) {
+        el = o.list[i];
+        tr = document.createElement('TR');
+        td = document.createElement('TD');
+
+        td.innerHTML = el.name;
+        td.className = 'name';
+        tr.id = 'rcmrow' + el.id;
+        if (el['class'])
+            tr.className = el['class'];
+        tr.appendChild(td);
+
+        list.insert_row(tr);
+      }
+
+      if (o.set)
+        list.highlight_row(o.set);
+      else
+        this.enable_command('plugin.managesieve-del', 'plugin.managesieve-act', false);
+
+      break;
+
+    // Sactivate/deactivate set
+    case 'setact':
+      var id = this.managesieve_setid(o.name), row = $('#rcmrow' + id);
+      if (o.active) {
+        if (o.all)
+          $('tr', this.gui_objects.filtersetslist).addClass('disabled');
+        row.removeClass('disabled');
+      }
+      else
+        row.addClass('disabled');
+
+      break;
+
+    // Delete set row
+    case 'setdel':
+      var id = this.managesieve_setid(o.name);
+
+      this.filtersets_list.remove_row(id);
+      this.filters_list.clear();
+      this.show_contentframe(false);
+      this.enable_command('plugin.managesieve-setdel', 'plugin.managesieve-setact', 'plugin.managesieve-setget', false);
+
+      delete this.env.filtersets[id];
+
+      break;
+
+    // Create set row
+    case 'setadd':
+      var id = 'S' + new Date().getTime(),
+        list = this.filtersets_list,
+        row = $('<tr class="disabled"><td class="name"></td></tr>');
+
+      $('td', row).html(o.name);
+      row.attr('id', 'rcmrow'+id);
+
+      this.env.filtersets[id] = o.name;
+      list.insert_row(row.get(0));
+
+      // move row into its position on the list
+      if (o.index != list.rowcount-1) {
+        row.detach();
+        var elem = $('tr:visible', list.list).get(o.index);
+        row.insertBefore(elem);
+      }
+
+      list.select(id);
+
+      // Fix dragging filters over sets list
+      this.managesieve_fixdragend(row);
+
+      break;
+  }
+
+  this.set_busy(false);
+};
+
+// load filter frame
+rcube_webmail.prototype.load_managesieveframe = function(id)
+{
+  var has_id = typeof(id) != 'undefined' && id != null;
+  this.enable_command('plugin.managesieve-act', 'plugin.managesieve-del', has_id);
+
+  if (this.env.contentframe && window.frames && window.frames[this.env.contentframe]) {
+    target = window.frames[this.env.contentframe];
+    var msgid = this.set_busy(true, 'loading');
+    target.location.href = this.env.comm_path+'&_action=plugin.managesieve&_framed=1'
+      +(id ? '&_fid='+id : '')+'&_unlock='+msgid;
+  }
+};
+
+// load filter frame
+rcube_webmail.prototype.managesieve_dragstart = function(list)
+{
+  var id = this.filters_list.get_single_selection();
+
+  this.drag_active = true;
+  this.drag_filter = id;
+};
+
+rcube_webmail.prototype.managesieve_dragend = function(e)
+{
+  if (this.drag_active) {
+    if (this.drag_filter_target) {
+      var lock = this.set_busy(true, 'loading');
+
+      this.show_contentframe(false);
+      this.http_post('plugin.managesieve', '_act=move&_fid='+this.drag_filter
+        +'&_to='+this.drag_filter_target, lock);
+    }
+    this.drag_active = false;
+  }
+};
+
+// Fixes filters dragging over sets list
+// @TODO: to be removed after implementing copying filters
+rcube_webmail.prototype.managesieve_fixdragend = function(elem)
+{
+  var p = this;
+  $(elem).bind('mouseup' + ((bw.iphone || bw.ipad) ? ' touchend' : ''), function(e) {
+    if (p.drag_active)
+      p.filters_list.drag_mouse_up(e);
+  });
+};
+
+rcube_webmail.prototype.managesieve_focus_filter = function(row)
+{
+  var id = row.id.replace(/^rcmrow/, '');
+  if (this.drag_active && id != this.drag_filter) {
+    this.drag_filter_target = id;
+    $(row.obj).addClass(id < this.drag_filter ? 'filtermoveup' : 'filtermovedown');
+  }
+};
+
+rcube_webmail.prototype.managesieve_unfocus_filter = function(row)
+{
+  if (this.drag_active) {
+    $(row.obj).removeClass('filtermoveup filtermovedown');
+    this.drag_filter_target = null;
+  }
+};
+
+/*********************************************************/
+/*********          Filter Form methods          *********/
+/*********************************************************/
+
+// Form submition
+rcube_webmail.prototype.managesieve_save = function()
+{
+  if (parent.rcmail && parent.rcmail.filters_list && this.gui_objects.sieveform.name != 'filtersetform') {
+    var id = parent.rcmail.filters_list.get_single_selection();
+    if (id != null)
+      this.gui_objects.sieveform.elements['_fid'].value = parent.rcmail.filters_list.rows[id].uid;
+  }
+  this.gui_objects.sieveform.submit();
+};
+
+// Operations on filters form
+rcube_webmail.prototype.managesieve_ruleadd = function(id)
+{
+  this.http_post('plugin.managesieve', '_act=ruleadd&_rid='+id);
+};
+
+rcube_webmail.prototype.managesieve_rulefill = function(content, id, after)
+{
+  if (content != '') {
+    // create new element
+    var div = document.getElementById('rules'),
+      row = document.createElement('div');
+
+    this.managesieve_insertrow(div, row, after);
+    // fill row after inserting (for IE)
+    row.setAttribute('id', 'rulerow'+id);
+    row.className = 'rulerow';
+    row.innerHTML = content;
+
+    this.managesieve_formbuttons(div);
+  }
+};
+
+rcube_webmail.prototype.managesieve_ruledel = function(id)
+{
+  if ($('#ruledel'+id).hasClass('disabled'))
+    return;
+
+  if (confirm(this.get_label('managesieve.ruledeleteconfirm'))) {
+    var row = document.getElementById('rulerow'+id);
+    row.parentNode.removeChild(row);
+    this.managesieve_formbuttons(document.getElementById('rules'));
+  }
+};
+
+rcube_webmail.prototype.managesieve_actionadd = function(id)
+{
+  this.http_post('plugin.managesieve', '_act=actionadd&_aid='+id);
+};
+
+rcube_webmail.prototype.managesieve_actionfill = function(content, id, after)
+{
+  if (content != '') {
+    var div = document.getElementById('actions'),
+      row = document.createElement('div');
+
+    this.managesieve_insertrow(div, row, after);
+    // fill row after inserting (for IE)
+    row.className = 'actionrow';
+    row.setAttribute('id', 'actionrow'+id);
+    row.innerHTML = content;
+
+    this.managesieve_formbuttons(div);
+  }
+};
+
+rcube_webmail.prototype.managesieve_actiondel = function(id)
+{
+  if ($('#actiondel'+id).hasClass('disabled'))
+    return;
+
+  if (confirm(this.get_label('managesieve.actiondeleteconfirm'))) {
+    var row = document.getElementById('actionrow'+id);
+    row.parentNode.removeChild(row);
+    this.managesieve_formbuttons(document.getElementById('actions'));
+  }
+};
+
+// insert rule/action row in specified place on the list
+rcube_webmail.prototype.managesieve_insertrow = function(div, row, after)
+{
+  for (var i=0; i<div.childNodes.length; i++) {
+    if (div.childNodes[i].id == (div.id == 'rules' ? 'rulerow' : 'actionrow')  + after)
+      break;
+  }
+
+  if (div.childNodes[i+1])
+    div.insertBefore(row, div.childNodes[i+1]);
+  else
+    div.appendChild(row);
+};
+
+// update Delete buttons status
+rcube_webmail.prototype.managesieve_formbuttons = function(div)
+{
+  var i, button, buttons = [];
+
+  // count and get buttons
+  for (i=0; i<div.childNodes.length; i++) {
+    if (div.id == 'rules' && div.childNodes[i].id) {
+      if (/rulerow/.test(div.childNodes[i].id))
+        buttons.push('ruledel' + div.childNodes[i].id.replace(/rulerow/, ''));
+    }
+    else if (div.childNodes[i].id) {
+      if (/actionrow/.test(div.childNodes[i].id))
+        buttons.push( 'actiondel' + div.childNodes[i].id.replace(/actionrow/, ''));
+    }
+  }
+
+  for (i=0; i<buttons.length; i++) {
+    button = document.getElementById(buttons[i]);
+    if (i>0 || buttons.length>1) {
+      $(button).removeClass('disabled');
+    }
+    else {
+      $(button).addClass('disabled');
+    }
+  }
+};
+
+function rule_header_select(id)
+{
+  var obj = document.getElementById('header' + id),
+    size = document.getElementById('rule_size' + id),
+    op = document.getElementById('rule_op' + id),
+    target = document.getElementById('rule_target' + id),
+    header = document.getElementById('custom_header' + id),
+    mod = document.getElementById('rule_mod' + id),
+    trans = document.getElementById('rule_trans' + id),
+    comp = document.getElementById('rule_comp' + id);
+
+  if (obj.value == 'size') {
+    size.style.display = 'inline';
+    op.style.display = 'none';
+    target.style.display = 'none';
+    header.style.display = 'none';
+    mod.style.display = 'none';
+    trans.style.display = 'none';
+    comp.style.display = 'none';
+  }
+  else {
+    header.style.display = obj.value != '...' ? 'none' : 'inline';
+    size.style.display = 'none';
+    op.style.display = 'inline';
+    comp.style.display = '';
+    rule_op_select(id);
+    mod.style.display = obj.value == 'body' ? 'none' : 'block';
+    trans.style.display = obj.value == 'body' ? 'block' : 'none';
+  }
+
+  obj.style.width = obj.value == '...' ? '40px' : '';
+};
+
+function rule_op_select(id)
+{
+  var obj = document.getElementById('rule_op' + id),
+    target = document.getElementById('rule_target' + id);
+
+  target.style.display = obj.value == 'exists' || obj.value == 'notexists' ? 'none' : 'inline';
+};
+
+function rule_trans_select(id)
+{
+  var obj = document.getElementById('rule_trans_op' + id),
+    target = document.getElementById('rule_trans_type' + id);
+
+  target.style.display = obj.value != 'content' ? 'none' : 'inline';
+};
+
+function rule_mod_select(id)
+{
+  var obj = document.getElementById('rule_mod_op' + id),
+    target = document.getElementById('rule_mod_type' + id);
+
+  target.style.display = obj.value != 'address' && obj.value != 'envelope' ? 'none' : 'inline';
+};
+
+function rule_join_radio(value)
+{
+  $('#rules').css('display', value == 'any' ? 'none' : 'block');
+};
+
+function rule_adv_switch(id, elem)
+{
+  var elem = $(elem), enabled = elem.hasClass('hide'), adv = $('#rule_advanced'+id);
+
+  if (enabled) {
+    adv.hide();
+    elem.removeClass('hide').addClass('show');
+  }
+  else {
+    adv.show();
+    elem.removeClass('show').addClass('hide');
+  }
+}
+
+function action_type_select(id)
+{
+  var obj = document.getElementById('action_type' + id),
+    enabled = {},
+    elems = {
+      mailbox: document.getElementById('action_mailbox' + id),
+      target: document.getElementById('action_target' + id),
+      target_area: document.getElementById('action_target_area' + id),
+      flags: document.getElementById('action_flags' + id),
+      vacation: document.getElementById('action_vacation' + id)
+    };
+
+  if (obj.value == 'fileinto' || obj.value == 'fileinto_copy') {
+    enabled.mailbox = 1;
+  }
+  else if (obj.value == 'redirect' || obj.value == 'redirect_copy') {
+    enabled.target = 1;
+  }
+  else if (obj.value.match(/^reject|ereject$/)) {
+    enabled.target_area = 1;
+  }
+  else if (obj.value.match(/^(add|set|remove)flag$/)) {
+    enabled.flags = 1;
+  }
+  else if (obj.value == 'vacation') {
+    enabled.vacation = 1;
+  }
+
+  for (var x in elems) {
+    elems[x].style.display = !enabled[x] ? 'none' : 'inline';
+  }
+};
+
+// Register onmouse(leave/enter) events for tips on specified form element
+rcube_webmail.prototype.managesieve_tip_register = function(tips)
+{
+  var n, framed = parent.rcmail,
+    tip = framed ? parent.rcmail.env.ms_tip_layer : rcmail.env.ms_tip_layer;
+
+  for (var n in tips) {
+    $('#'+tips[n][0])
+      .bind('mouseenter', {str: tips[n][1]},
+        function(e) {
+          var offset = $(this).offset(),
+            left = offset.left,
+            top = offset.top - 12;
+
+          if (framed) {
+            offset = $((rcmail.env.task == 'mail'  ? '#sievefilterform > iframe' : '#filter-box'), parent.document).offset();
+            top  += offset.top;
+            left += offset.left;
+          }
+
+          tip.html(e.data.str)
+          top -= tip.height();
+
+          tip.css({left: left, top: top}).show();
+        })
+      .bind('mouseleave', function(e) { tip.hide(); });
+  }
+};
+
+/*********************************************************/
+/*********           Mail UI methods             *********/
+/*********************************************************/
+
+rcube_webmail.prototype.managesieve_create = function()
+{
+  if (!rcmail.env.sieve_headers || !rcmail.env.sieve_headers.length)
+    return;
+
+  var i, html, buttons = {}, dialog = $("#sievefilterform");
+
+  // create dialog window
+  if (!dialog.length) {
+    dialog = $('<div id="sievefilterform"></div>');
+    $('body').append(dialog);
+  }
+
+  // build dialog window content
+  html = '<fieldset><legend>'+this.gettext('managesieve.usedata')+'</legend><ul>';
+  for (i in rcmail.env.sieve_headers)
+    html += '<li><input type="checkbox" name="headers[]" id="sievehdr'+i+'" value="'+i+'" checked="checked" />'
+      +'<label for="sievehdr'+i+'">'+rcmail.env.sieve_headers[i][0]+':</label> '+rcmail.env.sieve_headers[i][1]+'</li>';
+  html += '</ul></fieldset>';
+
+  dialog.html(html);
+
+  // [Next Step] button action
+  buttons[this.gettext('managesieve.nextstep')] = function () {
+    // check if there's at least one checkbox checked
+    var hdrs = $('input[name="headers[]"]:checked', dialog);
+    if (!hdrs.length) {
+      alert(rcmail.gettext('managesieve.nodata'));
+      return;
+    }
+
+    // build frame URL
+    var url = rcmail.get_task_url('mail');
+    url = rcmail.add_url(url, '_action', 'plugin.managesieve');
+    url = rcmail.add_url(url, '_framed', 1);
+
+    hdrs.map(function() {
+      var val = rcmail.env.sieve_headers[this.value];
+      url = rcmail.add_url(url, 'r['+this.value+']', val[0]+':'+val[1]);
+    });
+
+    // load form in the iframe
+    var frame = $('<iframe>').attr({src: url, frameborder: 0})
+    dialog.empty().append(frame).dialog('dialog').resize();
+
+    // Change [Next Step] button with [Save] button
+    buttons = {};
+    buttons[rcmail.gettext('save')] = function() {
+      var win = $('iframe', dialog).get(0).contentWindow;
+      win.rcmail.managesieve_save();
+    };
+    dialog.dialog('option', 'buttons', buttons);
+  };
+
+  // show dialog window
+  dialog.dialog({
+    modal: false,
+    resizable: !bw.ie6,
+    closeOnEscape: (!bw.ie6 && !bw.ie7),  // disable for performance reasons
+    title: this.gettext('managesieve.newfilter'),
+    close: function() { rcmail.managesieve_dialog_close(); },
+    buttons: buttons,
+    minWidth: 600,
+    minHeight: 300,
+    height: 250
+  }).show();
+
+  this.env.managesieve_dialog = dialog;
+}
+
+rcube_webmail.prototype.managesieve_dialog_close = function()
+{
+  var dialog = this.env.managesieve_dialog;
+
+  // BUG(?): if we don't remove the iframe first, it will be reloaded
+  dialog.html('');
+  dialog.dialog('destroy').hide();
+}
+
+rcube_webmail.prototype.managesieve_dialog_resize = function(o)
+{
+  var dialog = this.env.managesieve_dialog,
+    win = $(window), form = $(o);
+    width = form.width(), height = form.height(),
+    w = win.width(), h = win.height();
+
+  dialog.dialog('option', { height: Math.min(h-20, height+120), width: Math.min(w-20, width+65) })
+    .dialog('option', 'position', ['center', 'center']);  // only works in a separate call (!?)
+}