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roundcubemail/program/js/editor.js

789 lines
25 KiB
JavaScript

/**
* 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=4010700',
theme: 'modern',
language: config.lang,
content_css: rcmail.assets_path('program/js/tinymce/roundcube/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;
}
}
// 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 emoticons link image media nonbreaking'
+ ' paste table tabfocus textcolor searchreplace' + (config.spellcheck ? ' spellchecker' : ''),
toolbar: 'bold italic underline | alignleft aligncenter alignright alignjustify'
+ ' | bullist numlist outdent indent ltr rtl blockquote | forecolor backcolor | fontselect fontsizeselect'
+ ' | link unlink table | emoticons 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'
});
}
// 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++;
});
// secure spellchecker requests with Roundcube token
tinymce.util.XHR.on('beforeSend', function(e) {
e.xhr.setRequestHeader('X-Roundcube-Request', rcmail.env.request_token);
});
};
// 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 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) {
// use setTimeout() for IE9 (#1488541)
window.setTimeout(function() {
window.focus(); // for WebKit (#1486674)
fe.focus();
}, 10);
}
}
// set tabIndex and set focus to element that was focused before
this.tabindex(fe && fe.id == this.id);
// Trigger resize (needed for proper editor resizing in some browsers)
window.setTimeout(function() { $(window).resize(); }, 100);
};
// set tabIndex on tinymce editor
this.tabindex = function(focus)
{
if (rcmail.env.task == 'mail' && this.editor) {
var textarea = this.editor.getElement(),
node = this.editor.getContentAreaContainer().childNodes[0];
if (textarea && node)
node.tabIndex = textarea.tabIndex;
if (focus)
this.editor.getBody().focus();
// find :prev and :next elements to get focus when tabbing away
if (textarea.tabIndex > 0) {
var x = null,
editor = this.editor,
tabfocus_elements = [':prev',':next'],
el = tinymce.DOM.select('*[tabindex='+textarea.tabIndex+']:not(iframe)');
tinymce.each(el, function(e, i) { if (e.id == editor.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;
}
editor.settings.tabfocus_elements = tabfocus_elements.join(',');
}
}
}
};
// 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);
setTimeout(function() {
if (ref.editor) {
if (rcmail.env.default_font)
$(ref.editor.getBody()).css('font-family', rcmail.env.default_font);
// #1486593
ref.tabindex(true);
}
}, 500);
};
// 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();
};
// 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
this.replace = function(text)
{
var ed = this.editor;
// insert into tinymce editor
if (ed) {
ed.getWin().focus(); // correct focus in IE & Chrome
ed.selection.setContent(rcmail.quote_html(text).replace(/\r?\n/g, '<br/>'), { format:'text' });
}
// 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 },
inp_value = ed.value;
pre = inp_value.substring(0, selection.start),
end = inp_value.substring(selection.end, inp_value.length);
// insert response text
ed.value = pre + text + end;
// set caret after inserted text
rcmail.set_caret_pos(ed, selection.start + text.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) {
ed.getWin().focus(); // correct focus in IE & Chrome
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 cursor_pos, p = -1,
input_message = $('#' + this.id),
message = input_message.val(),
sig = rcmail.env.identity;
if (!this.editor) { // plain text mode
// remove the 'old' signature
if (show_sig && sig && rcmail.env.signatures && rcmail.env.signatures[sig]) {
sig = rcmail.env.signatures[sig].text;
sig = sig.replace(/\r\n/g, '\n');
p = rcmail.env.top_posting ? message.indexOf(sig) : message.lastIndexOf(sig);
if (p >= 0)
message = message.substring(0, p) + message.substring(p+sig.length, message.length);
}
// add the new signature string
if (show_sig && rcmail.env.signatures && rcmail.env.signatures[id]) {
sig = rcmail.env.signatures[id].text;
sig = sig.replace(/\r\n/g, '\n');
if (rcmail.env.top_posting) {
if (p >= 0) { // in place of removed signature
message = message.substring(0, p) + sig + message.substring(p, message.length);
cursor_pos = p - 1;
}
else if (!message) { // empty message
cursor_pos = 0;
message = '\n\n' + sig;
}
else if (pos = rcmail.get_caret_pos(input_message.get(0))) { // at cursor position
message = message.substring(0, pos) + '\n' + sig + '\n\n' + message.substring(pos, message.length);
cursor_pos = pos;
}
else { // on top
cursor_pos = 0;
message = '\n\n' + sig + '\n\n' + message.replace(/^[\r\n]+/, '');
}
}
else {
message = message.replace(/[\r\n]+$/, '');
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(),
doc = this.editor.getDoc();
sigElem = doc.createElement('div');
sigElem.setAttribute('id', '_rc_sig');
if (rcmail.env.top_posting) {
// if no existing sig and top posting then insert at caret pos
this.editor.getWin().focus(); // correct focus in IE & Chrome
var node = this.editor.selection.getNode();
if (node.nodeName == 'BODY') {
// no real focus, insert at start
body.insertBefore(sigElem, body.firstChild);
body.insertBefore(doc.createElement('br'), body.firstChild);
}
else {
body.insertBefore(sigElem, node.nextSibling);
body.insertBefore(doc.createElement('br'), node.nextSibling);
}
}
else {
body.appendChild(sigElem);
}
}
if (rcmail.env.signatures[id]) {
sigElem.innerHTML = rcmail.env.signatures[id].html;
}
}
};
// 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.gettext('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.gettext('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')
.bind('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/js/tinymce/roundcube/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 link = $(elem),
file = $('<input>').attr('name', '_file[]'),
form = $('<form>').attr({method: 'post', enctype: 'multipart/form-data'}),
offset = link.offset();
// 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) {
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);
};
}