Claytonia/cryptalk
Claytonia/cryptalk
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Command history

Browse source
This commit is contained in:
Hexagon 2014-09-21 14:00:55 +02:00
parent 08e4929af2
commit 1cc2223724
1 changed files with 57 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

69
public/js/cryptalk_modules/cryptalk.js
View file

@ -13,6 +13,9 @@ define('cryptalk', {
hash,
nick,
mute = false,
history = [],
history_pos = -1,
history_keep = 4,
// Collection of DOM components
components = {
@ -49,6 +52,9 @@ define('cryptalk', {
clear: function () {
components.chat.html('');
// Clear command history on clearing buffer
history = []; history_pos = -1;
},
leave: function () {
@ -123,12 +129,21 @@ define('cryptalk', {
}
},
// Push input buffer to command history
pushHistory = function (b) {
history.push(b);
// Shift oldest buffer if we have more than we should keep
if( history.length > history_keep ) history.shift();
},
// Handler for the document`s keyDown-event.
onKeyDown = function (e) {
var buffer,
parts,
payload,
command;
command,
save;
// The Document object is bound to this element.
// If the active element is not the input, focus on it and exit the function.
@ -136,11 +151,29 @@ define('cryptalk', {
return components.input.focus();
}
// Check for escape key, this does nothing but clear the input buffer and reset history position
if ( e.keyCode == 27 ) {
history_pos = -1;
components.input[0].value = '';
}
// Check for up or down-keys, they handle the history position
if( e.keyCode == 38 || e.keyCode == 40) {
if (e.keyCode == 38 ) { history_pos = (history_pos > history.length - 2) ? -1 : history_pos = history_pos + 1; }
else { history_pos = (history_pos <= 0) ? -1 : history_pos = history_pos - 1; }
return components.input[0].value = (history_pos == -1) ? '' : history[history.length-1-history_pos];
}
// Return immediatly if the buffer is empty or if the hit key was not <enter>
if (e.keyCode !== 13 || !(buffer = components.input[0].value)) {
return;
}
// Reset current history position to 0 (last command)
history_pos = -1;
// Handle command
if (buffer[0] === '/') {
parts = $.ssplit(buffer.slice(1), ' ');
@ -149,6 +182,7 @@ define('cryptalk', {
// Check that there is an handler for this command
if (!commands[command]) {
pushHistory(buffer);
return post('error', $.template(templates.messages.unrecognized_command, { commandName: command }));
}
@ -158,18 +192,19 @@ define('cryptalk', {
// Clear input field
components.input[0].value = '';
} else /* Handle ordinary message */ {
// Make sure that the user has joined a room
if (!room) {
components.input[0].value = '';
return post('error', templates.messages.msg_no_room);
// Save to history
if(command !== 'key') {
pushHistory(buffer);
}
// And that a valid key is set
if (!key) {
components.input[0].value = '';
return post('error', templates.messages.msg_no_key);
} else /* Handle ordinary message */ {
if (!room || !key) {
// Push buffer to history and clear input field
pushHistory(buffer); components.input[0].value = '';
// Make sure that the user has joined a room and the key is set
return (!room) ? post('error', templates.messages.msg_no_room) : post('error', templates.messages.msg_no_key);
}
// Before sending the message.
@ -180,9 +215,15 @@ define('cryptalk', {
nick: (nick && nick != undefined) ? $.AES.encrypt(nick, room + key).toString() : false
});
// Adn the the buffer
// And clear the the buffer
components.input[0].value = '';
// Save to history
pushHistory(buffer);
}
};
// Connect to server
@ -209,6 +250,10 @@ define('cryptalk', {
.on('room:left', function () {
post('info', $.template(templates.messages.left_room, { roomName: room }));
// Clear history on leaving room
history = []; history_pos = -1;
room = false;
})