--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/program/js/editor.js	Thu Jan 04 15:52:31 2018 -0500
@@ -0,0 +1,854 @@
+/**
+ * Roundcube editor js library
+ *
+ * This file is part of the Roundcube Webmail client
+ *
+ * @licstart  The following is the entire license notice for the
+ * JavaScript code in this file.
+ *
+ * Copyright (c) 2006-2014, The Roundcube Dev Team
+ *
+ * The JavaScript code in this page is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GNU GPL) as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option)
+ * any later version.  The code is distributed WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU GPL for more details.
+ *
+ * As additional permission under GNU GPL version 3 section 7, you
+ * may distribute non-source (e.g., minimized or compacted) forms of
+ * that code without the copy of the GNU GPL normally required by
+ * section 4, provided you include this license notice and a URL
+ * through which recipients can access the Corresponding Source.
+ *
+ * @licend  The above is the entire license notice
+ * for the JavaScript code in this file.
+ *
+ * @author Eric Stadtherr <estadtherr@gmail.com>
+ * @author Aleksander Machniak <alec@alec.pl>
+ */
+
+/**
+ * Roundcube Text Editor Widget class
+ * @constructor
+ */
+function rcube_text_editor(config, id)
+{
+  var ref = this,
+    abs_url = location.href.replace(/[?#].*$/, '').replace(/\/$/, ''),
+    conf = {
+      selector: '#' + ($('#' + id).is('.mce_editor') ? id : 'fake-editor-id'),
+      cache_suffix: 's=4050800',
+      theme: 'modern',
+      language: config.lang,
+      content_css: rcmail.assets_path('program/resources/tinymce/content.css'),
+      menubar: false,
+      statusbar: false,
+      toolbar_items_size: 'small',
+      extended_valid_elements: 'font[face|size|color|style],span[id|class|align|style]',
+      relative_urls: false,
+      remove_script_host: false,
+      convert_urls: false, // #1486944
+      image_description: false,
+      paste_webkit_style: "color font-size font-family",
+      paste_data_images: true,
+      browser_spellcheck: true
+    };
+
+  // register spellchecker for plain text editor
+  this.spellcheck_observer = function() {};
+  if (config.spellchecker) {
+    this.spellchecker = config.spellchecker;
+    if (config.spellcheck_observer) {
+      this.spellchecker.spelling_state_observer = this.spellcheck_observer = config.spellcheck_observer;
+    }
+  }
+
+  // secure spellchecker requests with Roundcube token
+  // Note: must be registered only once (#1490311)
+  if (!tinymce.registered_request_token) {
+    tinymce.registered_request_token = true;
+    tinymce.util.XHR.on('beforeSend', function(e) {
+      e.xhr.setRequestHeader('X-Roundcube-Request', rcmail.env.request_token);
+    });
+  }
+
+  // minimal editor
+  if (config.mode == 'identity') {
+    $.extend(conf, {
+      plugins: 'autolink charmap code colorpicker hr image link paste tabfocus textcolor',
+      toolbar: 'bold italic underline alignleft aligncenter alignright alignjustify'
+        + ' | outdent indent charmap hr link unlink image code forecolor'
+        + ' | fontselect fontsizeselect',
+      file_browser_callback: function(name, url, type, win) { ref.file_browser_callback(name, url, type); },
+      file_browser_callback_types: 'image'
+    });
+  }
+  // full-featured editor
+  else {
+    $.extend(conf, {
+      plugins: 'autolink charmap code colorpicker directionality link lists image media nonbreaking'
+        + ' paste table tabfocus textcolor searchreplace spellchecker',
+      toolbar: 'bold italic underline | alignleft aligncenter alignright alignjustify'
+        + ' | bullist numlist outdent indent ltr rtl blockquote | forecolor backcolor | fontselect fontsizeselect'
+        + ' | link unlink table | $extra charmap image media | code searchreplace undo redo',
+      spellchecker_rpc_url: abs_url + '/?_task=utils&_action=spell_html&_remote=1',
+      spellchecker_language: rcmail.env.spell_lang,
+      accessibility_focus: false,
+      file_browser_callback: function(name, url, type, win) { ref.file_browser_callback(name, url, type); },
+      // @todo: support more than image (types: file, image, media)
+      file_browser_callback_types: 'image media'
+    });
+  }
+
+  // add TinyMCE plugins/buttons from Roundcube plugin
+  $.each(config.extra_plugins || [], function() {
+    if (conf.plugins.indexOf(this) < 0)
+      conf.plugins = conf.plugins + ' ' + this;
+  });
+  $.each(config.extra_buttons || [], function() {
+    if (conf.toolbar.indexOf(this) < 0)
+      conf.toolbar = conf.toolbar.replace('$extra', '$extra ' + this);
+  });
+
+  // disable TinyMCE plugins/buttons from Roundcube plugin
+  $.each(config.disabled_plugins || [], function() {
+    conf.plugins = conf.plugins.replace(this, '');
+  });
+  $.each(config.disabled_buttons || [], function() {
+    conf.toolbar = conf.toolbar.replace(this, '');
+  });
+
+  conf.toolbar = conf.toolbar.replace('$extra', '').replace(/\|\s+\|/g, '|');
+
+  // support external configuration settings e.g. from skin
+  if (window.rcmail_editor_settings)
+    $.extend(conf, window.rcmail_editor_settings);
+
+  conf.setup = function(ed) {
+    ed.on('init', function(ed) { ref.init_callback(ed); });
+    // add handler for spellcheck button state update
+    ed.on('SpellcheckStart SpellcheckEnd', function(args) {
+      ref.spellcheck_active = args.type == 'spellcheckstart';
+      ref.spellcheck_observer();
+    });
+    ed.on('keypress', function() {
+      rcmail.compose_type_activity++;
+    });
+  };
+
+  // textarea identifier
+  this.id = id;
+  // reference to active editor (if in HTML mode)
+  this.editor = null;
+
+  tinymce.init(conf);
+
+  // react to real individual tinyMCE editor init
+  this.init_callback = function(event)
+  {
+    this.editor = event.target;
+
+    if (rcmail.env.action != 'compose') {
+      return;
+    }
+
+    var area = $('#' + this.id),
+      height = $('div.mce-toolbar-grp:first', area.parent()).height();
+
+    // the editor might be still not fully loaded, making the editing area
+    // inaccessible, wait and try again (#1490310)
+    if (height > 200 || height > area.height()) {
+      return setTimeout(function () { ref.init_callback(event); }, 300);
+    }
+
+    var css = {},
+      elem = rcube_find_object('_from'),
+      fe = rcmail.env.compose_focus_elem;
+
+    if (rcmail.env.default_font)
+      css['font-family'] = rcmail.env.default_font;
+
+    if (rcmail.env.default_font_size)
+      css['font-size'] = rcmail.env.default_font_size;
+
+    if (css['font-family'] || css['font-size'])
+      $(this.editor.getBody()).css(css);
+
+    if (elem && elem.type == 'select-one') {
+      // insert signature (only for the first time)
+      if (!rcmail.env.identities_initialized)
+        rcmail.change_identity(elem);
+
+      // Focus previously focused element
+      if (fe && fe.id != this.id && fe.nodeName != 'BODY') {
+        window.focus(); // for WebKit (#1486674)
+        fe.focus();
+        rcmail.env.compose_focus_elem = null;
+      }
+    }
+
+    // set tabIndex and set focus to element that was focused before
+    ref.tabindex(fe && fe.id == ref.id);
+    // Trigger resize (needed for proper editor resizing in some browsers)
+    $(window).resize();
+  };
+
+  // set tabIndex on tinymce editor
+  this.tabindex = function(focus)
+  {
+    if (rcmail.env.task == 'mail' && this.editor) {
+      var textarea = this.editor.getElement(),
+        body = this.editor.getBody(),
+        node = this.editor.getContentAreaContainer().childNodes[0];
+
+      if (textarea && node)
+        node.tabIndex = textarea.tabIndex;
+
+      // find :prev and :next elements to get focus when tabbing away
+      if (textarea.tabIndex > 0) {
+        var x = null,
+          tabfocus_elements = [':prev',':next'],
+          el = tinymce.DOM.select('*[tabindex='+textarea.tabIndex+']:not(iframe)');
+
+        tinymce.each(el, function(e, i) { if (e.id == ref.id) { x = i; return false; } });
+        if (x !== null) {
+          if (el[x-1] && el[x-1].id) {
+            tabfocus_elements[0] = el[x-1].id;
+          }
+          if (el[x+1] && el[x+1].id) {
+            tabfocus_elements[1] = el[x+1].id;
+          }
+          this.editor.settings.tabfocus_elements = tabfocus_elements.join(',');
+        }
+      }
+
+      // ContentEditable reset fixes invisible cursor issue in Firefox < 25
+      if (bw.mz && bw.vendver < 25)
+        $(body).prop('contenteditable', false).prop('contenteditable', true);
+
+      if (focus)
+        body.focus();
+    }
+  };
+
+  // switch html/plain mode
+  this.toggle = function(ishtml, noconvert)
+  {
+    var curr, content, result,
+      // these non-printable chars are not removed on text2html and html2text
+      // we can use them as temp signature replacement
+      sig_mark = "\u0002\u0003",
+      input = $('#' + this.id),
+      signature = rcmail.env.identity ? rcmail.env.signatures[rcmail.env.identity] : null,
+      is_sig = signature && signature.text && signature.text.length > 1;
+
+    // apply spellcheck changes if spell checker is active
+    this.spellcheck_stop();
+
+    if (ishtml) {
+      content = input.val();
+
+      // replace current text signature with temp mark
+      if (is_sig) {
+        content = content.replace(/\r\n/, "\n");
+        content = content.replace(signature.text.replace(/\r\n/, "\n"), sig_mark);
+      }
+
+      var init_editor = function(data) {
+        // replace signature mark with html version of the signature
+        if (is_sig)
+          data = data.replace(sig_mark, '<div id="_rc_sig">' + signature.html + '</div>');
+
+        input.val(data);
+        tinymce.execCommand('mceAddEditor', false, ref.id);
+
+        if (ref.editor) {
+          var body = $(ref.editor.getBody());
+          // #1486593
+          ref.tabindex(true);
+          // put cursor on start of the compose body
+          ref.editor.selection.setCursorLocation(body.children().first().get(0));
+        }
+      };
+
+      // convert to html
+      if (!noconvert) {
+        result = rcmail.plain2html(content, init_editor);
+      }
+      else {
+        init_editor(content);
+        result = true;
+      }
+    }
+    else if (this.editor) {
+      if (is_sig) {
+        // get current version of signature, we'll need it in
+        // case of html2text conversion abort
+        if (curr = this.editor.dom.get('_rc_sig'))
+          curr = curr.innerHTML;
+
+        // replace current signature with some non-printable characters
+        // we use non-printable characters, because this replacement
+        // is visible to the user
+        // doing this after getContent() would be hard
+        this.editor.dom.setHTML('_rc_sig', sig_mark);
+      }
+
+      // get html content
+      content = this.editor.getContent();
+
+      var init_plaintext = function(data) {
+        tinymce.execCommand('mceRemoveEditor', false, ref.id);
+        ref.editor = null;
+
+        // replace signture mark with text version of the signature
+        if (is_sig)
+          data = data.replace(sig_mark, "\n" + signature.text);
+
+        input.val(data).focus();
+        rcmail.set_caret_pos(input.get(0), 0);
+      };
+
+      // convert html to text
+      if (!noconvert) {
+        result = rcmail.html2plain(content, init_plaintext);
+      }
+      else {
+        init_plaintext(input.val());
+        result = true;
+      }
+
+      // bring back current signature
+      if (!result && curr)
+        this.editor.dom.setHTML('_rc_sig', curr);
+    }
+
+    return result;
+  };
+
+  // start spellchecker
+  this.spellcheck_start = function()
+  {
+    if (this.editor) {
+      tinymce.execCommand('mceSpellCheck', true);
+      this.spellcheck_observer();
+    }
+    else if (this.spellchecker && this.spellchecker.spellCheck) {
+      this.spellchecker.spellCheck();
+    }
+  };
+
+  // stop spellchecker
+  this.spellcheck_stop = function()
+  {
+    var ed = this.editor;
+
+    if (ed) {
+      if (ed.plugins && ed.plugins.spellchecker && this.spellcheck_active) {
+        ed.execCommand('mceSpellCheck', false);
+        this.spellcheck_observer();
+      }
+    }
+    else if (ed = this.spellchecker) {
+      if (ed.state && ed.state != 'ready' && ed.state != 'no_error_found')
+        $(ed.spell_span).trigger('click');
+    }
+  };
+
+  // spellchecker state
+  this.spellcheck_state = function()
+  {
+    var ed;
+
+    if (this.editor)
+      return this.spellcheck_active;
+    else if ((ed = this.spellchecker) && ed.state)
+      return ed.state != 'ready' && ed.state != 'no_error_found';
+  };
+
+  // resume spellchecking, highlight provided mispellings without a new ajax request
+  this.spellcheck_resume = function(data)
+  {
+    var ed = this.editor;
+
+    if (ed) {
+      ed.plugins.spellchecker.markErrors(data);
+    }
+    else if (ed = this.spellchecker) {
+      ed.prepare(false, true);
+      ed.processData(data);
+    }
+  };
+
+  // get selected (spellcheker) language
+  this.get_language = function()
+  {
+    if (this.editor) {
+      return this.editor.settings.spellchecker_language || rcmail.env.spell_lang;
+    }
+    else if (this.spellchecker) {
+      return GOOGIE_CUR_LANG;
+    }
+  };
+
+  // set language for spellchecking
+  this.set_language = function(lang)
+  {
+    var ed = this.editor;
+
+    if (ed) {
+      ed.settings.spellchecker_language = lang;
+    }
+    if (ed = this.spellchecker) {
+      ed.setCurrentLanguage(lang);
+    }
+  };
+
+  // replace selection with text snippet
+  // input can be a string or object with 'text' and 'html' properties
+  this.replace = function(input)
+  {
+    var format, ed = this.editor;
+
+    if (!input)
+      return false;
+
+    // insert into tinymce editor
+    if (ed) {
+      ed.getWin().focus(); // correct focus in IE & Chrome
+
+      if ($.type(input) == 'object' && ('html' in input)) {
+        input = input.html;
+        format = 'html';
+      }
+      else {
+        if ($.type(input) == 'object')
+          input = input.text || '';
+
+        input = rcmail.quote_html(input).replace(/\r?\n/g, '<br/>');
+        format = 'text';
+      }
+
+      ed.selection.setContent(input, {format: format});
+    }
+    // replace selection in compose textarea
+    else if (ed = rcube_find_object(this.id)) {
+      var selection = $(ed).is(':focus') ? rcmail.get_input_selection(ed) : {start: 0, end: 0},
+        value = ed.value;
+        pre = value.substring(0, selection.start),
+        end = value.substring(selection.end, value.length);
+
+      if ($.type(input) == 'object')
+        input = input.text || '';
+
+      // insert response text
+      ed.value = pre + input + end;
+
+      // set caret after inserted text
+      rcmail.set_caret_pos(ed, selection.start + input.length);
+      ed.focus();
+    }
+  };
+
+  // get selected text (if no selection returns all text) from the editor
+  this.get_content = function(args)
+  {
+    var sigstart, ed = this.editor, text = '', strip = false,
+      defaults = {refresh: true, selection: false, nosig: false, format: 'html'};
+
+    args = $.extend(defaults, args);
+
+    // apply spellcheck changes if spell checker is active
+    if (args.refresh) {
+      this.spellcheck_stop();
+    }
+
+    // get selected text from tinymce editor
+    if (ed) {
+      if (args.selection)
+        text = ed.selection.getContent({format: args.format});
+
+      if (!text) {
+        text = ed.getContent({format: args.format});
+        // @todo: strip signature in html mode
+        strip = args.format == 'text';
+      }
+    }
+    // get selected text from compose textarea
+    else if (ed = rcube_find_object(this.id)) {
+      if (args.selection && $(ed).is(':focus')) {
+        text = rcmail.get_input_selection(ed).text;
+      }
+
+      if (!text) {
+        text = ed.value;
+        strip = true;
+      }
+    }
+
+    // strip off signature
+    // @todo: make this optional
+    if (strip && args.nosig) {
+      sigstart = text.indexOf('-- \n');
+      if (sigstart > 0) {
+        text = text.substring(0, sigstart);
+      }
+    }
+
+    return text;
+  };
+
+  // change user signature text
+  this.change_signature = function(id, show_sig)
+  {
+    var position_element, cursor_pos, p = -1,
+      input_message = $('#' + this.id),
+      message = input_message.val(),
+      sig = rcmail.env.identity;
+
+    if (!this.editor) { // plain text mode
+      // remove the 'old' signature
+      if (show_sig && sig && rcmail.env.signatures && rcmail.env.signatures[sig]) {
+        sig = rcmail.env.signatures[sig].text;
+        sig = sig.replace(/\r\n/g, '\n');
+
+        p = rcmail.env.top_posting ? message.indexOf(sig) : message.lastIndexOf(sig);
+        if (p >= 0)
+          message = message.substring(0, p) + message.substring(p+sig.length, message.length);
+      }
+
+      // add the new signature string
+      if (show_sig && rcmail.env.signatures && rcmail.env.signatures[id]) {
+        sig = rcmail.env.signatures[id].text;
+        sig = sig.replace(/\r\n/g, '\n');
+
+        // in place of removed signature
+        if (p >= 0) {
+          message = message.substring(0, p) + sig + message.substring(p, message.length);
+          cursor_pos = p - 1;
+        }
+        // empty message or new-message mode
+        else if (!message || !rcmail.env.compose_mode) {
+          cursor_pos = message.length;
+          message += '\n\n' + sig;
+        }
+        else if (rcmail.env.top_posting && !rcmail.env.sig_below) {
+          // at cursor position
+          if (pos = rcmail.get_caret_pos(input_message.get(0))) {
+            message = message.substring(0, pos) + '\n' + sig + '\n\n' + message.substring(pos, message.length);
+            cursor_pos = pos;
+          }
+          // on top
+          else {
+            message = '\n\n' + sig + '\n\n' + message.replace(/^[\r\n]+/, '');
+            cursor_pos = 0;
+          }
+        }
+        else {
+          message = message.replace(/[\r\n]+$/, '');
+          cursor_pos = !rcmail.env.top_posting && message.length ? message.length + 1 : 0;
+          message += '\n\n' + sig;
+        }
+      }
+      else {
+        cursor_pos = rcmail.env.top_posting ? 0 : message.length;
+      }
+
+      input_message.val(message);
+
+      // move cursor before the signature
+      rcmail.set_caret_pos(input_message.get(0), cursor_pos);
+    }
+    else if (show_sig && rcmail.env.signatures) {  // html
+      var sigElem = this.editor.dom.get('_rc_sig');
+
+      // Append the signature as a div within the body
+      if (!sigElem) {
+        var body = this.editor.getBody();
+
+        sigElem = $('<div id="_rc_sig"></div>').get(0);
+
+        // insert at start or at cursor position in top-posting mode
+        // (but not if the content is empty and not in new-message mode)
+        if (rcmail.env.top_posting && !rcmail.env.sig_below
+          && rcmail.env.compose_mode && (body.childNodes.length > 1 || $(body).text())
+        ) {
+          this.editor.getWin().focus(); // correct focus in IE & Chrome
+
+          var node = this.editor.selection.getNode();
+
+          $(sigElem).insertBefore(node.nodeName == 'BODY' ? body.firstChild : node.nextSibling);
+          $('<p>').append($('<br>')).insertBefore(sigElem);
+        }
+        else {
+          body.appendChild(sigElem);
+          position_element = rcmail.env.top_posting && rcmail.env.compose_mode ? body.firstChild : $(sigElem).prev();
+        }
+      }
+
+      sigElem.innerHTML = rcmail.env.signatures[id] ? rcmail.env.signatures[id].html : '';
+    }
+    else if (!rcmail.env.top_posting) {
+      position_element = $(this.editor.getBody()).children().last();
+    }
+
+    // put cursor before signature and scroll the window
+    if (this.editor && position_element && position_element.length) {
+      this.editor.selection.setCursorLocation(position_element.get(0));
+      this.editor.getWin().scroll(0, position_element.offset().top);
+    }
+  };
+
+  // trigger content save
+  this.save = function()
+  {
+    if (this.editor) {
+      this.editor.save();
+    }
+  };
+
+  // focus the editing area
+  this.focus = function()
+  {
+    (this.editor || rcube_find_object(this.id)).focus();
+  };
+
+  // image selector
+  this.file_browser_callback = function(field_name, url, type)
+  {
+    var i, elem, cancel, dialog, fn, list = [];
+
+    // open image selector dialog
+    dialog = this.editor.windowManager.open({
+      title: rcmail.get_label('select' + type),
+      width: 500,
+      height: 300,
+      html: '<div id="image-selector-list"><ul></ul></div>'
+        + '<div id="image-selector-form"><div id="image-upload-button" class="mce-widget mce-btn" role="button" tabindex="0"></div></div>',
+      buttons: [{text: 'Cancel', onclick: function() { ref.file_browser_close(); }}]
+    });
+
+    rcmail.env.file_browser_field = field_name;
+    rcmail.env.file_browser_type = type;
+
+    // fill images list with available images
+    for (i in rcmail.env.attachments) {
+      if (elem = ref.file_browser_entry(i, rcmail.env.attachments[i])) {
+        list.push(elem);
+      }
+    }
+
+    if (list.length) {
+      $('#image-selector-list > ul').append(list).find('li:first').focus();
+    }
+
+    // add hint about max file size (in dialog footer)
+    $('div.mce-abs-end', dialog.getEl()).append($('<div class="hint">')
+      .text($('div.hint', rcmail.gui_objects.uploadform).text()));
+
+    // init upload button
+    elem = $('#image-upload-button').append($('<span>').text(rcmail.get_label('add' + type)));
+    cancel = elem.parents('.mce-panel').find('button:last').parent();
+
+    // we need custom Tab key handlers, until we find out why
+    // tabindex do not work here as expected
+    elem.keydown(function(e) {
+      if (e.which == 9) {
+        // on Tab + Shift focus first file
+        if (rcube_event.get_modifier(e) == SHIFT_KEY)
+          $('#image-selector-list li:last').focus();
+        // on Tab focus Cancel button
+        else
+          cancel.focus();
+
+        return false;
+      }
+    });
+    cancel.keydown(function(e) {
+      if (e.which == 9) {
+        // on Tab + Shift focus upload button
+        if (rcube_event.get_modifier(e) == SHIFT_KEY)
+          elem.focus();
+        else
+          $('#image-selector-list li:first').focus();
+
+        return false;
+      }
+    });
+
+    // enable (smart) upload button
+    this.hack_file_input(elem, rcmail.gui_objects.uploadform);
+
+    // enable drag-n-drop area
+    if ((window.XMLHttpRequest && XMLHttpRequest.prototype && XMLHttpRequest.prototype.sendAsBinary) || window.FormData) {
+      if (!rcmail.env.filedrop) {
+        rcmail.env.filedrop = {};
+      }
+      if (rcmail.gui_objects.filedrop) {
+        rcmail.env.old_file_drop = rcmail.gui_objects.filedrop;
+      }
+
+      rcmail.gui_objects.filedrop = $('#image-selector-form');
+      rcmail.gui_objects.filedrop.addClass('droptarget')
+        .on('dragover dragleave', function(e) {
+          e.preventDefault();
+          e.stopPropagation();
+          $(this)[(e.type == 'dragover' ? 'addClass' : 'removeClass')]('hover');
+        })
+        .get(0).addEventListener('drop', function(e) { return rcmail.file_dropped(e); }, false);
+    }
+
+    // register handler for successful file upload
+    if (!rcmail.env.file_dialog_event) {
+      rcmail.env.file_dialog_event = true;
+      rcmail.addEventListener('fileuploaded', function(attr) {
+        var elem;
+        if (elem = ref.file_browser_entry(attr.name, attr.attachment)) {
+          $('#image-selector-list > ul').prepend(elem);
+          elem.focus();
+        }
+      });
+    }
+
+    // @todo: upload progress indicator
+  };
+
+  // close file browser window
+  this.file_browser_close = function(url)
+  {
+    var input = $('#' + rcmail.env.file_browser_field);
+
+    if (url)
+      input.val(url);
+
+    this.editor.windowManager.close();
+
+    input.focus();
+
+    if (rcmail.env.old_file_drop)
+      rcmail.gui_objects.filedrop = rcmail.env.old_file_drop;
+  };
+
+  // creates file browser entry
+  this.file_browser_entry = function(file_id, file)
+  {
+    if (!file.complete || !file.mimetype) {
+      return;
+    }
+
+    if (rcmail.file_upload_id) {
+      rcmail.set_busy(false, null, rcmail.file_upload_id);
+    }
+
+    var rx, img_src;
+
+    switch (rcmail.env.file_browser_type) {
+      case 'image':
+        rx = /^image\//i;
+        break;
+
+      case 'media':
+        rx = /^video\//i;
+        img_src = 'program/resources/tinymce/video.png';
+        break;
+
+      default:
+        return;
+    }
+
+    if (rx.test(file.mimetype)) {
+      var path = rcmail.env.comm_path + '&_from=' + rcmail.env.action,
+        action = rcmail.env.compose_id ? '&_id=' + rcmail.env.compose_id + '&_action=display-attachment' : '&_action=upload-display',
+        href = path + action + '&_file=' + file_id,
+        img = $('<img>').attr({title: file.name, src: img_src ? img_src : href + '&_thumbnail=1'});
+
+      return $('<li>').attr({tabindex: 0})
+        .data('url', href)
+        .append($('<span class="img">').append(img))
+        .append($('<span class="name">').text(file.name))
+        .click(function() { ref.file_browser_close($(this).data('url')); })
+        .keydown(function(e) {
+          if (e.which == 13) {
+            ref.file_browser_close($(this).data('url'));
+          }
+          // we need custom Tab key handlers, until we find out why
+          // tabindex do not work here as expected
+          else if (e.which == 9) {
+            if (rcube_event.get_modifier(e) == SHIFT_KEY) {
+              if (!$(this).prev().focus().length)
+                $('#image-upload-button').parents('.mce-panel').find('button:last').parent().focus();
+            }
+            else {
+              if (!$(this).next().focus().length)
+                $('#image-upload-button').focus();
+            }
+
+            return false;
+          }
+        });
+    }
+  };
+
+  // create smart files upload button
+  this.hack_file_input = function(elem, clone_form)
+  {
+    var offset, link = $(elem),
+      file = $('<input>').attr('name', '_file[]'),
+      form = $('<form>').attr({method: 'post', enctype: 'multipart/form-data'});
+
+    // clone existing upload form
+    if (clone_form) {
+      file.attr('name', $('input[type="file"]', clone_form).attr('name'));
+      form.attr('action', $(clone_form).attr('action'))
+        .append($('<input>').attr({type: 'hidden', name: '_token', value: rcmail.env.request_token}));
+    }
+
+    function move_file_input(e) {
+      if (!offset) offset = link.offset();
+      file.css({top: (e.pageY - offset.top - 10) + 'px', left: (e.pageX - offset.left - 10) + 'px'});
+    }
+
+    file.attr({type: 'file', multiple: 'multiple', size: 5, title: '', tabindex: -1})
+      .change(function() { rcmail.upload_file(form, 'upload'); })
+      .click(function() { setTimeout(function() { link.mouseleave(); }, 20); })
+      // opacity:0 does the trick, display/visibility doesn't work
+      .css({opacity: 0, cursor: 'pointer', position: 'relative', outline: 'none'})
+      .appendTo(form);
+
+    // In FF and IE we need to move the browser file-input's button under the cursor
+    // Thanks to the size attribute above we know the length of the input field
+    if (navigator.userAgent.match(/Firefox|MSIE/))
+      file.css({marginLeft: '-80px'});
+
+    // Note: now, I observe problem with cursor style on FF < 4 only
+    link.css({overflow: 'hidden', cursor: 'pointer'})
+      .mouseenter(function() { this.__active = true; })
+      // place button under the cursor
+      .mousemove(function(e) {
+        if (this.__active)
+          move_file_input(e);
+        // move the input away if button is disabled
+        else
+          $(this).mouseleave();
+      })
+      .mouseleave(function() {
+        file.css({top: '-10000px', left: '-10000px'});
+        this.__active = false;
+      })
+      .click(function(e) {
+        // forward click if mouse-enter event was missed
+        if (!this.__active) {
+          this.__active = true;
+          move_file_input(e);
+          file.trigger(e);
+        }
+      })
+      .keydown(function(e) {
+        if (e.which == 13) file.trigger('click');
+      })
+      .mouseleave()
+      .append(form);
+  };
+}