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jappix_ynh/source/app/javascripts/correction.js
2014-11-25 23:42:38 +01:00

509 lines
14 KiB
JavaScript

/*
Jappix - An open social platform
Implementation of XEP-0308: Last Message Correction
-------------------------------------------------
License: AGPL
Author: Valérian Saliou
*/
// Bundle
var Correction = (function () {
/**
* Alias of this
* @private
*/
var self = {};
/**
* @private
* @param {string} xid
* @return {boolean}
*/
self._hasSupport = function(xid) {
var support = false;
try {
if($('#' + hex_md5(xid) + '[data-correction="true"]').size()) {
support = true;
}
} catch(e) {
Console.error('Correction._hasSupport', e);
} finally {
return support;
}
};
/**
* @private
* @param {string} xid
* @return {string}
*/
self._getLastID = function(xid) {
var last_id = null;
try {
if(self._hasSupport(xid) === true) {
// Check last message from ourselves
last_id = $('#' + hex_md5(xid) + ' .content .one-line.user-message[data-mode="me"]:last').attr('data-id') || null;
}
} catch(e) {
Console.error('Correction._getLastID', e);
} finally {
return last_id;
}
};
/**
* @private
* @param {string} xid
* @return {string}
*/
self._getCurrentID = function(xid) {
var current_id = null;
try {
if(self._hasSupport(xid) === true) {
// Check the ID of the message being edited (if any)
current_id = $('#' + hex_md5(xid) + ' .message-area').attr('data-correction-current') || null;
}
} catch(e) {
Console.error('Correction._getCurrentID', e);
} finally {
return current_id;
}
};
/**
* @private
* @param {string} xid
* @return {object}
*/
self._getLastMessage = function(xid) {
var last_message_val = null;
var last_message_sel = null;
try {
if(self._hasSupport(xid) === true) {
// Check last message from ourselves
last_message_sel = $('#' + hex_md5(xid) + ' .content .one-line.user-message[data-mode="me"]:last');
last_message_val = last_message_sel.find('.message-content').text() || null;
if(last_message_val === null) {
last_message_sel = null;
}
}
} catch(e) {
Console.error('Correction._getLastMessage', e);
} finally {
return {
'value': last_message_val,
'selector': last_message_sel
};
}
};
/**
* @private
* @param {string} xid
* @param {object} message_sel
* @return {undefined}
*/
self._bindInterface = function(xid, message_sel) {
try {
// Add message area elements
var text_sel = $('#' + hex_md5(xid) + ' .text');
text_sel.addClass('correction-active');
text_sel.prepend(
'<div class="correction-toolbox">' +
'<span class="correction-editing">' + Common._e("Editing") + '</span>' +
'<a class="correction-cancel" href="#">' + Common._e("Cancel") + '</a>' +
'</div>'
);
// Add message correction marker
message_sel.addClass('correction-active');
message_sel.find('.correction-label').remove();
message_sel.find('.correction-edit').hide();
message_sel.append(
'<span class="correction-label">' +
Common._e("Being edited") +
'</span>'
);
// Bind click events
text_sel.find('.correction-cancel').click(function() {
self.leave(xid);
return false;
});
} catch(e) {
Console.error('Correction._bindInterface', e);
}
};
/**
* @private
* @param {string} xid
* @param {object} message_sel
* @return {undefined}
*/
self._unbindInterface = function(xid, message_sel) {
try {
// Remove message area elements
var text_sel = $('#' + hex_md5(xid) + ' .text');
text_sel.removeClass('correction-active');
text_sel.find('.correction-toolbox, .correction-label').remove();
if(message_sel.size()) {
message_sel.find('.correction-edit').css('display', '');
// Remove message correction marker
message_sel.removeClass('correction-active');
message_sel.find('.correction-label').remove();
}
} catch(e) {
Console.error('Correction._unbindInterface', e);
}
};
/**
* @private
* @param {string} xid
* @param {string} full_xid
* @param {string} type
* @param {string} message_id
* @param {string} message_body
* @return {string}
*/
self._sendStanza = function(xid, full_xid, type, message_id, message_body) {
var args = {
'id': null,
'xhtml': false,
'message': null
};
try {
var hash = hex_md5(xid);
var id = genID();
args.id = id;
// Initialize message stanza
var message = new JSJaCMessage();
args.message = message;
message.setType(type);
message.setTo(full_xid);
message.setID(id);
// Generates the correct message depending of the choosen style
var generate_message = Message.generate(message, message_body, hash);
args.xhtml = (generate_message === 'XHTML');
// Receipt request
var receipt_request = Receipts.request(hash);
if(receipt_request) {
message.appendNode('request', {'xmlns': NS_URN_RECEIPTS});
}
// Chatstate
message.appendNode('active', {'xmlns': NS_CHATSTATES});
if(message_id !== null) {
message.appendNode('replace', {
'xmlns': NS_URN_CORRECT,
'id': message_id
});
}
con.send(message, Errors.handleReply);
} catch(e) {
Console.error('Correction._sendStanza', e);
} finally {
return args;
}
};
/**
* Detects correction mode request (in input)
* @public
* @param {string} xid
* @param {object} input_sel
* @return {undefined}
*/
self.detect = function(xid, input_sel) {
try {
// Other keys
if(input_sel.val().match(/^\/correct/) && self.isIn(xid) === false) {
// Enter correction mode?
self.enter(xid);
}
} catch(e) {
Console.error('Correction.detect', e);
}
};
/**
* Enter correction mode (for last message)
* @public
* @param {string} xid
* @return {undefined}
*/
self.enter = function(xid) {
try {
Console.debug('Correction.enter', 'Requested to enter the correction mode with: ' + xid);
if(self._hasSupport(xid) === true && self.isIn(xid) === false) {
var last_message = self._getLastMessage(xid);
if(last_message.value && last_message.selector) {
Console.info('Correction.enter', 'Valid last message found for correction mode with: ' + xid);
var message_area_sel = $('#' + hex_md5(xid) + ' .message-area');
message_area_sel.val(last_message.value);
self._bindInterface(
xid,
last_message.selector
);
// Focus hack (to get cursor at the end of textarea)
message_area_sel.oneTime(10, function() {
message_area_sel[0].select();
message_area_sel[0].selectionStart = message_area_sel[0].selectionEnd;
});
}
}
} catch(e) {
Console.error('Correction.enter', e);
}
};
/**
* Leave correction mode
* @public
* @param {string} xid
* @return {undefined}
*/
self.leave = function(xid) {
try {
if(self.isIn(xid) === true) {
var base_sel = $('#' + hex_md5(xid));
var active_message_sel = base_sel.find('.content .one-line.user-message.correction-active');
self._unbindInterface(xid, active_message_sel);
var message_area_sel = base_sel.find('.message-area');
message_area_sel.val('');
message_area_sel.focus();
}
} catch(e) {
Console.error('Correction.leave', e);
}
};
/**
* Send corrected message
* @public
* @param {string} xid
* @param {string} type
* @param {string} replacement
* @return {undefined}
*/
self.send = function(xid, type, replacement) {
try {
if(self._hasSupport(xid) === true) {
if(self._getLastMessage(xid).value != replacement) {
var own_xid = Common.getXID();
var hash = hex_md5(xid);
var replace_id = self._getLastID(xid);
Console.info('Correction.send', 'Sending replacement message for: ' + xid + ' "' + replacement + '" with ID: ' + (replace_id || 'none'));
// Send the stanza itself
var full_xid = Presence.highestPriority(xid) || xid;
var stanza_args = self._sendStanza(
xid,
full_xid,
type,
replace_id,
replacement
);
// Update DOM (for chat only)
if(type == 'chat') {
// Filter the xHTML message (for us!)
var replacement_formatted = replacement;
if(stanza_args.xhtml) {
replacement_formatted = Filter.xhtml(stanza_args.message.getNode());
}
// Remove old message
old_message_sel = $('#' + hash + ' .content .one-line.user-message[data-mode="me"]').filter(function() {
return ($(this).attr('data-id') + '') === (replace_id + '');
}).filter(':last');
var edit_count = old_message_sel.attr('data-edit-count') || 0;
edit_count = isNaN(edit_count) ? 0 : parseInt(edit_count, 10);
if(type == 'chat') {
old_message_sel.remove();
}
// Display edited message
Message.display(
'chat',
own_xid,
hash,
Name.getBuddy(own_xid).htmlEnc(),
replacement_formatted,
DateUtils.getCompleteTime(),
DateUtils.getTimeStamp(),
'user-message',
!stanza_args.xhtml,
'',
'me',
stanza_args.id,
undefined,
undefined,
true,
(edit_count + 1)
);
}
}
}
} catch(e) {
Console.error('Correction.send', e);
}
};
/**
* Catches a replace message
* @public
* @param {object} message
* @param {string} hash
* @param {string} type
* @return {object}
*/
self.catch = function(message, hash, type) {
var edit_results = {
'has_replace': false,
'is_edited': false,
'count': 0,
'next_count': 0
};
try {
var replace_node = message.getChild('replace', NS_URN_CORRECT);
if(replace_node) {
edit_results.has_replace = true;
var message_edit_id = $(replace_node).attr('id');
if(typeof message_edit_id != 'undefined') {
var message_edit_sel = $('#' + hash + ' .one-line.user-message').filter(function() {
var this_sel = $(this);
var is_valid_mode = true;
if(type == 'chat') {
is_valid_mode = true ? this_sel.attr('data-mode') == 'him' : false;
}
return is_valid_mode && ((this_sel.attr('data-id') + '') === (message_edit_id + ''));
}).filter(':last');
if(message_edit_sel.size()) {
edit_results.count = message_edit_sel.attr('data-edit-count') || 0;
edit_results.count = isNaN(edit_results.count) ? 0 : parseInt(edit_results.count, 10);
edit_results.next_count = edit_results.count + 1;
edit_results.is_edited = true;
// Empty group?
var message_edit_group_sel = message_edit_sel.parents('.one-group');
if(message_edit_group_sel.find('.one-line').size() <= 1) {
message_edit_group_sel.remove();
} else {
message_edit_sel.remove();
}
}
}
}
} catch(e) {
Console.error('Correction.catch', e);
} finally {
return edit_results;
}
};
/**
* Returns whether we are in correction mode or not
* @public
* @param {string} xid
* @return {boolean}
*/
self.isIn = function(xid) {
var is_in = false;
try {
is_in = $('#' + hex_md5(xid) + ' .text').hasClass('correction-active');
} catch(e) {
Console.error('Correction.isIn', e);
} finally {
return is_in;
}
};
/**
* Return class scope
*/
return self;
})();