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/* CodeQ: an online programming tutor.
Copyright (C) 2015,2016 UL FRI
This program is free software: you can redistribute it and/or modify it under
the terms of the GNU Affero General Public License as published by the Free
Software Foundation, either version 3 of the License, or (at your option) any
later version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
(function() {
"use strict";
var makeGlobalStateMachine = function (def) {
var currState = null,
waitingState = null; // state hidden with a modal form
var stateChangeFun = function historyStateChangeHandler() {
var historyState = History.getState();
codeq.globalStateMachine.actualTransition.apply(
codeq.globalStateMachine,
$.merge([historyState.data.state],
historyState.data.params));
};
History.Adapter.bind(window, 'statechange', stateChangeFun);
// prepare the history state change listener
return {
'transition': function (name) {
var newState = def[name];
if (!newState) {
codeq.log.error('Cannot transition to undefined state: ' + name);
return;
}
if (newState === currState) {
codeq.log.info('Will not transition between identical states: ' + name);
return;
}
if (History.getState().data.state === name) {
// special case which happens if the user refreshes while
// in the login screen (history state doesn't change
// because it goes from login to login and the above
// listener doesn't trigger)
codeq.globalStateMachine.actualTransition.apply(
codeq.globalStateMachine,
Array.prototype.slice.apply(arguments, [0]));
}
try {
History.pushState(
{'state': name, 'params': Array.prototype.slice.apply(arguments, [1])},
'CodeQ', '?s=' + name);
}
catch (e) {
codeq.log.error('History.pushState() failed for new state ' + name + '. ' +
'Error:' + e, e);
}
},
'destroy': function () {
if (currState) currState.exit();
currState = null;
if (waitingState) waitingState.exit();
waitingState = null;
History.Adapter.unbind(window, 'statechange', stateChangeFun);
},
'register': function (name, state, props) {
if (name in def) {
codeq.log.error('State ' + name + ' is already registered, overriding.');
}
def[name] = state;
},
'actualTransition': function (name) {
// always transition to 'login' state if no session exists
// (except for 'signup'/'aailogin' states)
if (!codeq.comms.getSid() && name !== "signup" && name !== "aailogin") {
name = 'login';
}
// we have already checked that newState exists, and that it is
// different from the current state
var newState = def[name];
if (currState) {
if (newState.isModal) {
if (currState.isModal) {
currState.exit();
}
else {
waitingState = currState;
waitingState.jqScreen.css('display', 'none');
}
currState = newState;
currState.enter.apply(currState, Array.prototype.slice.apply(arguments, [1]));
}
else {
currState.exit();
currState = newState;
if (waitingState === newState) {
waitingState.jqScreen.css('display', '');
waitingState = null;
}
else {
if (waitingState) {
waitingState.exit();
waitingState = null;
}
currState.enter.apply(currState, Array.prototype.slice.apply(arguments, [1]));
}
}
}
else {
currState = newState;
currState.enter.apply(currState, Array.prototype.slice.apply(arguments, [1]));
}
}
}
};
codeq.globalStateMachine = makeGlobalStateMachine({});
// setup the navigation buttons
$('#navigation-home').on('click', function (e) {
codeq.globalStateMachine.transition('language');
e.preventDefault();
});
$('#navigation-problem-list').on('click', function (e) {
codeq.globalStateMachine.transition('problem_list');
e.preventDefault();
});
$('#navigation-python').on('click', function (e) {
codeq.globalStateMachine.transition('python');
e.preventDefault();
});
$('#navigation-prolog').on('click', function (e) {
codeq.globalStateMachine.transition('prolog');
e.preventDefault();
});
$('#navigation-robot').on('click', function (e) {
codeq.globalStateMachine.transition('robot');
e.preventDefault();
});
$('#navigation-logout').on('click', function (e) {
codeq.comms.logout()
.then(function (data) {
codeq.comms.disconnect();
})
.fail(function (reason) {
codeq.log.error('Logout failed: ' + reason);
})
.done();
/* leaving this here if we later decide to enable saml_logout
if(codeq.samlLogin){
codeq.comms.samlLogout()
.then(function (data) {
console.log(data);
codeq.comms.disconnect();
})
.fail(function (reason) {
console.log(reason);
})
.done();
}else{
codeq.comms.logout()
.then(function (data) {
console.log(data);
codeq.comms.disconnect();
})
.fail(function (reason) {
console.log(reason);
})
.done();
}*/
codeq.globalStateMachine.transition('login');
e.preventDefault();
});
$('#navigation-profile').on('click', function (e) {
codeq.globalStateMachine.transition('profile');
e.preventDefault();
});
$('#navigation-about').on('click', function (e) {
codeq.globalStateMachine.transition('about');
e.preventDefault();
});
$('#navigation-change-password').on('click', function (e) {
codeq.globalStateMachine.transition('changePassword');
e.preventDefault();
});
$('#navigation-settings').on('click',function(e){
codeq.globalStateMachine.transition('settings');
e.preventDefault();
});
})();
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