oxjs/source/Ox/js/Core.js

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// OxJS (c) 2012 0x2620, dual-licensed GPL/MIT, see http://oxjs.org for details
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'use strict';
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/*@
Ox <f> The `Ox` object
See `Ox.wrap` for details.
(value) -> <o> wrapped value
value <*> Any value
@*/
this.Ox = function(value) {
return Ox.wrap(value);
};
/*@
Ox.load <f> Loads one or more modules
A module named "Foo" provides `Ox.Foo/Ox.Foo.js`, in which it defines one
method, `Ox.load.Foo`, that takes two arguments, `options` and `callback`,
and calls `callback` with one argument, `true` for success or `false` if an
error occurred. Generally, the module should define `Ox.Foo` and attach its
own methods there.
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(callback) -> <u> undefined
(module, callback) -> <u> undefined
(module, options, callback) -> <u> undefined
(modules, callback) -> <u> undefined
module <s> Module name
options <o> Module options
modules <a|o> Multiple modules
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Either `['moduleA', {moduleB: options}, ...]`
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or `{moduleA: {}, moduleB: options, ...}`
callback <f> Callback function
success <b> If true, all modules have been loaded successfully
@*/
Ox.load = function() {
var callback = arguments[arguments.length - 1],
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length, loaded = 0, modules = {}, succeeded = 0,
type = Ox.typeOf(arguments[0]);
function done(success) {
Ox.documentReady(function() {
callback(success);
});
}
if (type == 'string') {
modules = Ox.extend(
{}, arguments[0], Ox.isObject(arguments[1]) ? arguments[1] : {}
);
} else if (type == 'array') {
arguments[0].forEach(function(value) {
if (Ox.isString(value)) {
modules[value] = {};
} else {
Ox.extend(modules, value)
}
});
} else if (type == 'object') {
modules = arguments[0];
}
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length = Ox.len(modules);
Ox.documentReady(function() {
if (!length) {
callback(true);
} else {
Ox.forEach(modules, function(options, module) {
Ox.getFile(
Ox.PATH + 'Ox.' + module + '/Ox.' + module + '.js',
function() {
Ox.load[module](options, function(success) {
succeeded += success;
++loaded == length && callback(succeeded == length);
});
}
);
});
}
});
};
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/*@
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Ox.localStorage <f> localStorage wrapper
(namespace) -> storage <f> localStorage function for a given namespace
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() -> <o> returns all key:value pairs
(key) -> <*> returns one value
(key, val) -> <f> sets one value, returns localStorage object
({key: val, ...}) -> <f> sets values, returns localStorage object
<script>
Ox.test.localStorage = Ox.localStorage('test');
</script>
> Ox.test.localStorage({foo: 'bar'})('foo')
'bar'
> Ox.test.localStorage.delete('foo')()
{}
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@*/
Ox.localStorage = function(namespace) {
var localStorage;
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try {
// this will fail if third party cookies/storage is not allowed
localStorage = window.localStorage || {};
// FF 3.6 can't assign to or iterate over localStorage
Ox.forEach(localStorage, function(value, key) {});
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} catch (e) {
localStorage = {};
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}
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function storage(key, value) {
var ret;
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if (arguments.length == 0) {
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ret = {};
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Ox.forEach(localStorage, function(value, key) {
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if (Ox.startsWith(key, namespace + '.')) {
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ret[key.slice(namespace.length + 1)] = JSON.parse(value);
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}
});
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} else if (arguments.length == 1 && typeof key == 'string') {
// This gets called by Ox.Log before Type.js has loaded
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value = localStorage[namespace + '.' + key];
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ret = value === void 0 ? void 0 : JSON.parse(value);
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} else {
Ox.forEach(Ox.makeObject(arguments), function(value, key) {
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localStorage[namespace + '.' + key] = JSON.stringify(value);
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});
ret = storage;
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}
return ret;
};
// IE 8 doesn't like `storage.delete`
storage['delete'] = function() {
var keys = arguments.length == 0 ? Object.keys(storage())
: Ox.toArray(arguments)
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keys.forEach(function(key) {
delete localStorage[namespace + '.' + key];
});
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return storage;
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};
return storage;
};
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/*@
Ox.Log <f> Logging module
@*/
Ox.Log = (function() {
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var storage = Ox.localStorage('Ox'),
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log = storage('log') || {filter: [], filterEnabled: true},
that = function() {
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var ret;
if (arguments.length == 0) {
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ret = log;
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} else {
ret = that.log.apply(null, arguments);
}
return ret;
};
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that.filter = function(value) {
if (!Ox.isUndefined(value)) {
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that.filter.enable();
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log.filter = Ox.makeArray(value);
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storage('log', log);
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}
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return log.filter;
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};
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that.filter.add = function(value) {
return that.filter(Ox.unique(log.filter.concat(Ox.makeArray(value))));
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};
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that.filter.disable = function() {
log.filterEnabled = false;
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storage('log', log);
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};
that.filter.enable = function() {
log.filterEnabled = true;
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storage('log', log);
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};
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that.filter.remove = function(value) {
value = Ox.makeArray(value);
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return that.filter(log.filter.filter(function(v) {
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return value.indexOf(v) == -1;
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}));
};
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that.log = function() {
var args = Ox.toArray(arguments), date, ret;
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if (!log.filterEnabled || log.filter.indexOf(args[0]) > -1) {
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date = new Date();
args.unshift(
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Ox.formatDate(date, '%H:%M:%S.') + (+date).toString().slice(-3)
);
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window.console && window.console.log.apply(window.console, args);
ret = args.join(' ');
}
return ret;
};
return that;
}());
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/*@
Ox.loop <f> For-loop, functional-style
Returning `false` from the iterator function acts like a `break` statement.
Unlike a `for` loop, `Ox.loop` doesn't leak its counter variable to the
outer scope, but returns it.
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(stop, fn) -> <n> Next value
equivalent to `for (var i = 0; i < stop; i++) { fn(i); }`
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(start, stop, fn) -> <n> Next value
equivalent to `for (var i = start; i < stop; i++) { fn(i); }` or, if
`start` is larger than `stop`, `for (var i = start; i > stop; i--) {
fn(i); }`
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(start, stop, step, fn) -> <n> Next value
equivalent to `for (var i = start; i < stop; i += step) { fn(i); }` or,
if `step` is negative, `for (var i = start; i > stop; i += step) {
fn(i); }`
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start <n> Start value
stop <n> Stop value (exclusive)
step <n> Step value
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fn <f> Iterator function
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i <n> Counter value
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> Ox.loop(10, function(i) { if (i == 4) { return false; } })
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4
> Ox.loop(0, 3, 2, function() {})
4
@*/
Ox.loop = function() {
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var length = arguments.length,
start = length > 2 ? arguments[0] : 0,
stop = arguments[length > 2 ? 1 : 0],
step = length == 4 ? arguments[2] : (start <= stop ? 1 : -1),
iterator = arguments[length - 1],
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i;
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for (i = start; step > 0 ? i < stop : i > stop; i += step) {
if (iterator(i) === false) {
break;
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}
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}
return i;
};
/*@
Ox.print <f> Prints its arguments to the console
(arg, ...) -> <s> String
The string contains the timestamp, the name of the caller function, and
any arguments, separated by spaces
arg <*> any value
> Ox.print('foo').split(' ').pop()
"foo"
@*/
Ox.print = function() {
var args = Ox.toArray(arguments), date = new Date();
args.unshift(
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Ox.formatDate(date, '%H:%M:%S.') + (+date).toString().slice(-3)
);
window.console && window.console.log.apply(window.console, args);
return args.join(' ');
};
/*@
Ox.uid <f> Returns a unique id
() -> <n> Unique id
> Ox.uid() != Ox.uid()
true
@*/
Ox.uid = (function() {
var uid = 0;
return function() {
return uid++;
};
}());
/*@
Ox.wrap <f> Wraps a value so that one can directly call any Ox function on it
`Ox(value)` is a shorthand for `Ox.wrap(value)`.
(value) -> <o> wrapped value
chain <f> Wrap return values to allow chaining
value <f> Unwrap the value wrapped by `chain()`
value <*> Any value
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> Ox('foobar').repeat(2)
'foobarfoobar'
> Ox('foobar').chain().reverse().toTitleCase().value()
'Raboof'
> Ox.wrap('foobar').value()
'foobar'
@*/
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Ox.wrap = function(value, chained) {
// somewhat inspired by underscore.js
var wrapper = {
chain: function() {
wrapper.chained = true;
return wrapper;
},
chained: chained || false,
value: function() {
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return value;
}
};
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Ox.methods(Ox).filter(function(method) {
return method[0] == method[0].toLowerCase();
}).forEach(function(method) {
wrapper[method] = function() {
var args = Array.prototype.slice.call(arguments), ret;
args.unshift(value);
ret = Ox[method].apply(Ox, args);
return wrapper.chained ? Ox.wrap(ret, true) : ret;
};
});
return wrapper;
};