oxjs/examples/documentation/oxdoc/js/example.js
2012-06-23 16:47:08 +02:00

353 lines
12 KiB
JavaScript

'use strict';
/*
An OxDoc comment is an inline or multi-line comment that starts with `@`:
```
//@ ...
/*@
...
*/
```
The syntax is simple: almost every line has the form `name <type> summary`. If
it doesn't, its meaning depends on its context.
*/
this.My = {};
/*
If the first line of the comment doesn't match `name <type> summary`, it is a
section definition. Here, it marks a section named 'Primitives'.
*/
//@ Primitives
/*
This inline comment documents an item by providing its name, type and one-line
summary.
*/
//@ My.REQUEST_TIMEOUT <number> Request timeout, in milliseconds
My.REQUEST_TIMEOUT = 60000;
/*
In a multiline comment, lines that follow the inital definition are indented, as
they refer to the item defined in the line above. Lines that don't match `name
<type> summary` are parsed as a description. Like the summary, the description
can contain `markdown`.
*/
/*@
My.MAGIC_CONSTANT <number> Magic constant, needed for HTTP requests
Please note that the value of `My.MAGIC_CONSTANT` (either `23` or `42`) is
browser-dependent.
*/
My.MAGIC_CONSTANT = navigator.userAgent.length % 2 ? 23 : 42;
/*
This defines a new section named 'Objects'.
*/
//@ Objects
/*
Lines that start with `#` are inline comments. The follwing lines document
properties of the `My.favorites` object. This example shows all possible values
for `type`. These values can be shortened, it's sufficient to specify their
first character.
*/
/*@
My.favorites <object> ...
# Properties --------------------------------------------------------------
array <a> My favorite array
boolean <b> My favorite boolean value
date <d> My favorite date
error <e> My favorite error
function <f> My favorite function
arguments <g> My favorite arguments
htmlelement <h> My favorite HTML element
nodelist <l> My favorite nodelist
number <n> My favorite number
object <o> My favorite object
regexp <r> My favorite regular expression
string <s> My favorite string
undefined <u> Undefined is an all-time favorite
window <w> ...
other <+> ...
any <*> Favorite of the day
# Events -------------------------------------------------------------------
event <!> Fires when My.favorite['function'] is called
*/
My.favorites = (function() {
var favorites = {
array: [],
boolean: false,
date: new Date(),
error: new Error(),
'function': function() {
My.triggerEvent(this, 'event');
},
arguments: (function() { return arguments; }()),
htmlelement: document.createElement('a'),
nodelist: document.getElementsByTagName('a'),
number: 0,
object: {},
regexp: new RegExp(),
string: '',
'undefined': void 0,
'window': window,
other: document
},
keys = Object.keys(favorites);
favorites.any = favorites[keys[Math.floor(Math.random() * keys.length)]];
return favorites;
}());
/*
Documentation can be nested. In other words, one can document the properties of
a property (of a property...). Also, if all elements of an array are of a known
type (in this case `string`), one can mark the type as `<[s]>` instead of just
`<array>`.
*/
/*@
My.HTMLUtils <o> HTML Utilities
namedEntities <[s]> Named HTML entities
replace <o> Entity decoding utilities
namedEntities <a> Can be passed to `String.prototype.replace`
0 <r> Matches named entities
1 <f> Decodes named entities
numericEntities <a> Can be passed to `String.prototype.replace`
0 <r> Matches numeric entities
1 <f> Decodes numeric entities
*/
My.HTMLUtils = (function() {
var chars = '"&\'<>',
entities = ['&quot;', '&amp;', '&apos;', '&lt;', '&gt;'];
return {
namedEntities: entities,
replace: {
namedEntities: [
new RegExp('(' + entities.join('|') + ')', 'g'),
function(match) {
return chars[entities.indexOf(match)];
}
],
numericEntities: [
/&#([0-9A-FX]+);/gi,
function(match, code) {
return String.fromCharCode(
/^X/i.test(code)
? parseInt(code.slice(1), 16)
: parseInt(code, 10)
);
}
],
}
};
}());
/*
The beginning of another section, named 'Functions'.
*/
//@ Functions
/*
In the case of a function, the indented lines don't document properties, but the
function's signature, return value and arguments. Signature and return value are
just a special case of `name <type> summary`, where `name` has the form
`(arguments) ->`. If an item can be of more than one type (in this case `string`
or `function`), this is documented as `<s|f>`. If it has a default value (in
this case the string `'GET'`), this is documented as `<s|'GET'>`. In the case of
a `function`-type argument (usually a callback function), there is no return
value to document, only the arguments it gets passed.
*/
/*@
My.readURL <f> Asynchronously reads a remote resource
(url[, method], callback) -> <u> undefined
Please note that the return value of `My.readURL` may change in the
future.
url <s|f> Remote URL, or function that returns one
method <s|'GET'> Request method ('GET', 'POST', 'PUT' or 'DELETE')
callback <f> Callback function
result <s|null> Response text, or `null` in case of an error
error <o|null> Error object, or `null` in case of success
code <n> Error code
text <s> Error text
*/
My.readURL = function(url, method, callback) {
var request = new XMLHttpRequest();
if (Ox.isFunction(url)) {
url = url();
}
if (arguments.length == 2) {
callback = method;
method = 'GET';
}
request.open(method, url, true);
request.onreadystatechange = function() {
if (request.readyState == 4) {
if (request.status == 200) {
callback(request.responseText, null);
} else {
callback(null, {
code: request.status,
text: request.statusText
});
}
}
};
request.send();
};
/*
If a function's return value depends on the absence or presence of optional
arguments, there can be multiple `(arguments) -> <type> summary` lines.
*/
/*@
My.isOdd <f> Synchronously or asynchronously computes if a given number is odd
(number) -> <b> True if the number is odd
(number, callback) -> <u> undefined
number <n> Any number
callback <f> Callback function
isOdd <b> True if the number is odd
ms <n> Time it took to compute the result, in milliseconds
*/
My.isOdd = function(number, callback) {
var time = +new Date, isOdd = !!(number % 2);
if (callback) {
callback(isOdd, +new Date - time);
} else {
return isOdd;
}
};
/*
Another case for multiple `(arguments) -> <type> summary` lines are functions
whose signature cannot be represented in `(required[, optional])` notation. For
a range function — `(stop)` or `(start, stop)` or `(start, stop, step)` — the
notation `([start, ]stop[, step])` would be ambigious, since you cannot call it
with `(stop, step)`.
*/
/*@
My.range <f> Returns a python-style range
(b) -> <[n]> Integers from 0 (inclusive) to b (exclusive)
(a, b) -> <[n]> Integers from a (inclusice) to b (exclusive)
(a, b, c) -> <[n]> Numbers from a (inclusive) to b (exclusive), growing by c
*/
My.range = function() {
var a = [];
Ox.loop.apply(null, Ox.toArray(arguments).concat(function(i) {
a.push(i);
}));
return a;
};
/*
In case a function has a property or method one wants to document, it gets
prefixed with `.`, in order to differentiate it from an argument.
*/
/*@
My.localStorage <f> Returns a localStorage handler for a given namespace
(ns) -> storage <f> localStorage handler
() -> <o> Returns all key:value pairs
(key) -> <*> Returns one value
(key, value) -> <f> Sets one value, returns the handler
({key: value, ...}) -> <f> Sets one or more values, returns the handler
key <s> Any string
value <*> Any value that can be JSON-serialized
.delete <f> Delete method
() -> <f> Deletes all key:value pairs, returns the handler
(key[, ...]) -> <f> Deletes one or more pairs, returns the handler
key <s> Any string
ns <s> Namespace
*/
My.localStorage = (function() {
if (!window.localStorage) {
window.localStorage = {};
}
return function(ns) {
function storage(key, value) {
var args, ret;
if (arguments.length == 0) {
ret = {};
Ox.forEach(localStorage, function(value, key) {
if (Ox.startsWith(key, ns + '.')) {
ret[key.slice(ns.length + 1)] = JSON.parse(value);
}
});
} else if (arguments.length == 1 && !Ox.isObject(key)) {
value = localStorage[ns + '.' + key];
ret = Ox.isUndefined(value) ? void 0 : JSON.parse(value);
} else {
Ox.forEach(Ox.makeObject(arguments), function(value, key) {
localStorage[ns + '.' + key] = JSON.stringify(value);
});
ret = this;
}
return ret;
};
storage.delete = function() {
var keys = arguments.length == 0 ? Object.keys(storage())
: Ox.toArray(arguments)
keys.forEach(function(key) {
delete localStorage[ns + '.' + key];
});
return storage;
};
return storage;
};
}());
/*
And one more section, named 'UI Elements'.
*/
//@ UI Element
/*@
My.Box <f> A very simple colored box
options <o> Options
color <[n]> RGB value
self <o> Shared private object
([options[, self]]) -> <o> Box object
grayscale <!> Fires when changing the color of the box to grayscale
color <n> Value between `0` and `255`
*/
My.Box = function(options, self) {
self = self || {};
var that = Ox.Element({}, self)
.defaults({color: [255, 0, 0]})
.options(options || {})
.update(setColor)
.css({width: '256px', height: '256px'});
function setColor() {
that.css({background: 'rgb(' + self.options.color.join(', ') + ')'});
}
/*@
.toGrayscale <f> Changes the color of the box to grayscale.
() -> <o> The box object
*/
that.toGrayscale = function() {
return that.options({
color: Ox.repeat([Ox.avg(self.options.color)], 3)
}).triggerEvent('grayscale', {color: self.options.color[0]});
};
return that;
};
//@
Ox.load('UI', function() {
var file = 'example.js',
path = Ox.PATH + '../examples/documentation/oxdoc/js/';
Ox.get(path + file, function(source) {
var doc = Ox.doc(source);
Ox.TabPanel({
content: {
source: Ox.SyntaxHighlighter({source: path + file}),
doc: Ox.TreeList({data: doc}),
docpanel: Ox.DocPanel({
expanded: true,
files: 'example.js',
path: path
})
},
tabs: [
{id: 'source', title: 'source'},
{id: 'doc', title: 'doc = Ox.doc(source)'},
{id: 'docpanel', title: 'Ox.DocPanel({items: doc})'}
]
}).appendTo(Ox.$body);
});
});