oxjs/source/Ox/js/DOM.js

540 lines
18 KiB
JavaScript

'use strict';
/*@
Ox.$ <f> Generic HTML element, mimics jQuery
value <s|h|w|?> tagname, selector, html element, `window`, or `document`
Passing a tagname ('<tagname>') creates an element, passing a selector
('tagname', '.classname' or '#id') selects an element.
(value) -> <o> Element object
> Ox.$('<div>').addClass('red').hasClass('red')
true
> Ox.$('<div>').addClass('red').removeClass('red').hasClass('red')
false
> Ox.$('<div>').addClass('red').addClass('red')[0].className
'red'
> Ox.$('<div>').attr({id: 'red'}).attr('id')
'red'
> Ox.$('<div>').attr({id: 'red'}).removeAttr('id').attr('id')
void 0
> Ox.$('<div>').css({color: 'red'}).css('color')
'red'
> Ox.$('<div>').html('red').html()
'red'
> Ox.$('<div>').html('red').empty().html()
''
> Ox.$('<input>').val('red').val()
'red'
> !!Ox.$('<div>').on({click: function(e) { Ox.test(e.type, 'click'); }}).trigger('click')
true
@*/
Ox.$ = Ox.element = function(value) {
var element = !Ox.isString(value) ? value // window, document or element
: value[0] == '<' ? document.createElement(value.slice(1, -1))
: value[0] == '#' ? document.getElementById(value.slice(1))
: value[0] == '.' ? document.getElementsByClassName(value.slice(1))[0]
: document.getElementsByTagName(value)[0],
mousewheelEvents = ['wheel', 'mousewheel'],
originalMousewheelEvents = 'onwheel' in document ? ['wheel']
: ['mousewheel', 'DOMMouseScroll', 'MozMousePixelScroll'];
function normalizeEvents(args) {
var ret = {};
Ox.forEach(Ox.makeObject(args), function(callback, event) {
if (Ox.contains(mousewheelEvents, event)) {
originalMousewheelEvents.forEach(function(event) {
ret[event] = callback;
});
} else {
ret[event] = callback;
}
});
return ret;
}
return element ? {
//@ 0 <h> The DOM element itself
0: element,
/*@
addClass <f> Adds a class name
(className) -> <o> This element
className <s> Class name
@*/
addClass: function(string) {
this[0].className = Ox.unique(((
this[0].className ? this[0].className + ' ' : ''
) + Ox.clean(string)).split(' ')).join(' ');
return this;
},
/*@
append <f> Appends one or more elements to this element
(element[, element[, ...]]) -> <o> This element
element <o> Another element
@*/
append: function() {
var that = this;
Ox.slice(arguments).forEach(function($element) {
that[0].appendChild($element[0]);
});
return this;
},
/*@
appendTo <f> Appends this element object to another element object
(element) -> <o> This element
element <o> Another element
@*/
appendTo: function($element) {
$element[0].appendChild(this[0]);
return this;
},
/*@
attr <f> Gets or sets an attribute
(key) -> <s> Value
(key, value) -> <o> This element
({key: value, key1: value1, ...}) -> <o> This element
key <str> Attribute name
value <str> Attribute value
@*/
attr: function() {
var ret, that = this;
if (arguments.length == 1 && Ox.isString(arguments[0])) {
ret = this[0].getAttribute
? this[0].getAttribute(arguments[0])
: null;
// fixme: why exactly is this needed?
if (ret === null) {
ret = void 0;
}
} else {
Ox.forEach(Ox.makeObject(arguments), function(value, key) {
that[0].setAttribute && that[0].setAttribute(key, value);
});
ret = this;
}
return ret;
},
/*@
children <f> Returns the children of this element
() -> <[h]> Children
@*/
children: function() {
return Ox.slice(this[0].childNodes);
},
/*@
css <f> Gets or sets a CSS attribute
(key) -> <s> Value
(key, value) -> <o> This element
({key0: value0, key1: value1, ...}) -> <o> This element
key <str> Attribute name
value <str> Attribute value
@*/
css: function() {
var ret, that = this;
if (arguments.length == 1 && Ox.isString(arguments[0])) {
ret = this[0].style[arguments[0]];
} else {
Ox.forEach(Ox.makeObject(arguments), function(value, key) {
that[0].style[key] = value;
});
ret = this;
}
return ret;
},
/*@
empty <f> Empties the inner HTML
() -> <o> This element
@*/
empty: function() {
return this.html('');
},
/*@
find <f> Find descendant elements
([selector]) -> <[h]> Elements
selector <s|'*'> CSS selector
@*/
find: function(string) {
return Ox.slice(this[0].querySelectorAll(string || '*'));
},
/*@
hasClass <f> Returns true if this element has a given class
(className) -> <b> True if this element has the class
className <s> Class name
@*/
hasClass: function(string) {
return this[0].className.split(' ').indexOf(string) > -1;
},
/*@
height <f> Returns the height of this element
() -> <n> Height in px
@*/
height: function() {
return this[0].offsetHeight;
},
/*@
hide <f> Hides this element
() -> <o> This element
@*/
hide: function() {
return this.css({display: 'none'});
},
/*@
html <f> Gets or sets the inner HTML
() -> <s> The inner HTML
(html) -> <o> This element
html <s> The inner HTML
@*/
html: function(string) {
var ret;
if (arguments.length == 0) {
ret = this[0].innerHTML;
} else {
this[0].innerHTML = string;
ret = this;
}
return ret;
},
/*@
insertAfter <f> Inserts this element after another element
(element) -> <o> This element
element <o> Another element
@*/
insertAfter: function($element) {
$element[0].parentNode.insertBefore(this[0], $element[0].nextSibling);
return this;
},
/*@
insertBefore <f> Inserts this element before another element
(element) -> <o> This element
element <o> Another element
@*/
insertBefore: function($element) {
$element[0].parentNode.insertBefore(this[0], $element[0]);
return this;
},
/*@
next <f> Returns the sibling after this element
() -> <h> Next element
@*/
next: function() {
return this[0].nextSibling;
},
/*@
nextAll <f> Returns all siblings after this element
() -> <[h]> Next elements
@*/
nextAll: function() {
var sibling = this[0], siblings = [];
while (true) {
var sibling = sibling.nextSibling;
if (!sibling) {
break;
}
siblings.push(sibling);
}
return siblings;
},
/*@
off <f> Unbinds a callback from an event
(event) -> <o> This element (unbinds all callbacks)
(event, callback) -> <o> This element
({event0: callback0, event1: callback1, ...}) -> <o> This element
event <s> Event name
callback <f> Callback function
@*/
off: function(event, callback) {
var that = this;
Ox.forEach(normalizeEvents(arguments), function(callback, event) {
if (callback) {
that[0].removeEventListener(event, callback, false);
} else {
that[0]['on' + event] = null;
}
});
return this;
},
/*@
on <f> Binds a callback to an event
(event, callback) -> <o> This element
({event0: callback0, event1: callback1, ...}) -> <o> This element
event <s> Event name
callback <f> Callback function
e <o> Event properties
@*/
on: function() {
var that = this;
Ox.forEach(normalizeEvents(arguments), function(callback, event) {
that[0].addEventListener(event, callback, false);
});
return this;
},
/*@
one <f> Binds a callback to an event and unbinds it on first invocation
(event, callback) -> <o> This element
({event0: callback0, event1: callback1, ...}) -> <o> This element
event <s> Event name
callback <f> Callback function
e <o> Event properties
@*/
one: function(events) {
var args = Ox.slice(arguments), that = this;
Ox.forEach(normalizeEvents(arguments), function(callback, event) {
that.on(event, function fn() {
that.off(event, fn);
return callback.apply(that, args);
});
});
return this;
},
/*@
parent <f> Returns the parent of this element
() -> <h> Parent element
@*/
parent: function() {
return this[0].parentNode;
},
/*@
parents <f> Returns all ancestors of this element
() -> <[h]> Ancestor elements
@*/
parents: function() {
var parent = this[0], parents = [];
while (true) {
var parent = parent.parentNode;
if (!parent) {
break;
}
parents.unshift(parent);
}
return parents;
},
/*@
prepend <f> Prepends one or more elements to this element
(element[, element[, ...]]) -> <o> This element
element <o> Another element
@*/
prepend: function() {
var parent = this[0].parentNode;
Ox.slice(arguments).reverse().forEach(function($element) {
parent.insertBefore($element[0], parent.firstChild);
});
return this;
},
/*@
prependTo <f> Prepends this element object to another element object
(element) -> <o> This element
element <o> Another element
@*/
prependTo: function($element) {
var element = $element[0];
element.insertBefore(this[0], element.firstChild);
return this;
},
/*@
prev <f> Returns the sibling before this element
() -> <h> Next element
@*/
prev: function() {
return this[0].previousSibling;
},
/*@
prevAll <f> Returns all siblings before this element
() -> <[h]> Next elements
@*/
prevAll: function() {
var sibling = this[0], siblings = [];
while (true) {
var sibling = sibling.previousSibling;
if (!sibling) {
break;
}
siblings.unshift(sibling);
}
return siblings;
},
/*@
remove <f> Removes this element from the DOM
() -> <o> This element
@*/
remove: function() {
this[0].parentNode.removeChild(this[0]);
return this;
},
/*@
removeAttr <f> Removes an attribute
(key) -> <o> This element
([key0, key1, ...]) -> <o> This element
key <s> The attribute
@*/
removeAttr: function() {
var that = this;
Ox.makeArray(arguments[0]).forEach(function(key) {
that[0].removeAttribute(key);
});
return this;
},
/*@
removeClass <f> Removes a class name
(className) -> <o> This element
className <s> Class name
@*/
removeClass: function(string) {
var array = Ox.clean(string).split(' ');
this[0].className = this[0].className.split(' ').filter(
function(className) {
return array.indexOf(className) == -1;
}
).join(' ');
return this;
},
/*@
replace <f> Replaces another element with this element
(element) -> <o> This element
element <o> Another element
@*/
replace: function($element) {
var next = $element[0].nextSibling, parent = $element[0].parentNode;
$element.remove();
parent.insertBefore(this[0], next);
return this;
},
/*@
replaceWith <f> Replaces this element with another element
(element) -> <o> This element
element <o> Another element
@*/
replaceWith: function($element) {
var next = this[0].nextSibling, parent = this[0].parentNode;
this.remove();
parent.insertBefore($element[0], next);
return this;
},
/*@
show <f> Shows this element
() -> This element
@*/
show: function() {
return this.css({display: 'block'});
},
/*@
siblings <f> Returns all siblings of this element
() -> <[oh]> Sibling elements
@*/
siblings: function() {
var that = this;
return Ox.filter(this[0].parentNode.childNodes, function(element) {
return element !== that[0];
});
},
/*@
text <f> Gets or sets the text contents
() -> <s> The text contents
(text) -> <o> This element
text <s> The text contents
@*/
text: function() {
var ret;
if (arguments.length == 0) {
ret = Ox.isString(this.textContent)
? this.textContent : this.innerText;
} else {
ret = this.empty().append(this[0].createTextNode(string));
}
return ret;
},
/*@
toggleClass <f> Toggles a class name
(className) -> <o> This element
className <s> Class name
@*/
toggleClass: function(string) {
return this[
this.hasClass(string) ? 'removeClass' : 'addClass'
](string);
},
/*@
trigger <f> Triggers an event
(event) -> <o> This element
@*/
trigger: function(event) {
var e = document.createEvent('MouseEvents');
e.initEvent(event, true, true);
this[0].dispatchEvent(e);
return this;
},
/*@
val <f> Gets or sets the value property of this element
() -> <s> Value
(value) -> <o> This element
value <s> Value
@*/
val: function(value) {
var ret;
if (arguments.length == 0) {
ret = this[0].value;
} else {
this[0].value = value;
ret = this;
}
return ret;
},
/*@
width <f> Returns the width of this element
() -> <n> Width in px
@*/
width: function() {
return this[0].offsetWidth;
}
} : null;
};
/*@
Ox.canvas <function> Generic canvas object
Returns an object with the properties: `canvas`, `context`, `data` and
`imageData`.
(width, height) -> <o> canvas
(image) -> <o> canvas
width <n> Width in px
height <n> Height in px
image <e> Image object
@*/
Ox.canvas = function() {
var c = {}, isImage = arguments.length == 1,
image = isImage ? arguments[0] : {
width: arguments[0], height: arguments[1]
};
c.context = (c.canvas = Ox.$('<canvas>').attr({
width: image.width, height: image.height
})[0]).getContext('2d');
isImage && c.context.drawImage(image, 0, 0);
c.data = (c.imageData = c.context.getImageData(
0, 0, image.width, image.height
)).data;
return c;
};
/*@
Ox.documentReady <function> Calls a callback function once the DOM is ready
(callback) -> <b> If true, the document was ready
callback <f> Callback function
@*/
Ox.documentReady = (function() {
var callbacks = [];
document.onreadystatechange = window.onload = function() {
if (document.readyState == 'complete') {
callbacks.forEach(function(callback) {
callback();
});
document.onreadystatechange = window.onload = null;
}
};
return function(callback) {
if (document.readyState == 'complete') {
callback();
return true;
} else {
callbacks.push(callback);
return false;
}
};
}());