assets/javascripts/ui/ui.core.js
/*
* jQuery UI @VERSION
*
* Copyright (c) 2008 AUTHORS.txt (http://ui.jquery.com/about)
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*
* http://docs.jquery.com/UI
*/
;(function($) {
var _remove = $.fn.remove,
isFF2 = $.browser.mozilla && (parseFloat($.browser.version) < 1.9);
//Helper functions and ui object
$.ui = {
version: "@VERSION",
// $.ui.plugin is deprecated. Use the proxy pattern instead.
plugin: {
add: function(module, option, set) {
var proto = $.ui[module].prototype;
for(var i in set) {
proto.plugins[i] = proto.plugins[i] || [];
proto.plugins[i].push([option, set[i]]);
}
},
call: function(instance, name, args) {
var set = instance.plugins[name];
if(!set) { return; }
for (var i = 0; i < set.length; i++) {
if (instance.options[set[i][0]]) {
set[i][1].apply(instance.element, args);
}
}
}
},
contains: function(a, b) {
var safari2 = $.browser.safari && $.browser.version < 522;
if (a.contains && !safari2) {
return a.contains(b);
}
if (a.compareDocumentPosition)
return !!(a.compareDocumentPosition(b) & 16);
while (b = b.parentNode)
if (b == a) return true;
return false;
},
cssCache: {},
css: function(name) {
if ($.ui.cssCache[name]) { return $.ui.cssCache[name]; }
var tmp = $('<div class="ui-gen">').addClass(name).css({position:'absolute', top:'-5000px', left:'-5000px', display:'block'}).appendTo('body');
//if (!$.browser.safari)
//tmp.appendTo('body');
//Opera and Safari set width and height to 0px instead of auto
//Safari returns rgba(0,0,0,0) when bgcolor is not set
$.ui.cssCache[name] = !!(
(!(/auto|default/).test(tmp.css('cursor')) || (/^[1-9]/).test(tmp.css('height')) || (/^[1-9]/).test(tmp.css('width')) ||
!(/none/).test(tmp.css('backgroundImage')) || !(/transparent|rgba\(0, 0, 0, 0\)/).test(tmp.css('backgroundColor')))
);
try { $('body').get(0).removeChild(tmp.get(0)); } catch(e){}
return $.ui.cssCache[name];
},
hasScroll: function(el, a) {
//If overflow is hidden, the element might have extra content, but the user wants to hide it
if ($(el).css('overflow') == 'hidden') { return false; }
var scroll = (a && a == 'left') ? 'scrollLeft' : 'scrollTop',
has = false;
if (el[scroll] > 0) { return true; }
// TODO: determine which cases actually cause this to happen
// if the element doesn't have the scroll set, see if it's possible to
// set the scroll
el[scroll] = 1;
has = (el[scroll] > 0);
el[scroll] = 0;
return has;
},
isOverAxis: function(x, reference, size) {
//Determines when x coordinate is over "b" element axis
return (x > reference) && (x < (reference + size));
},
isOver: function(y, x, top, left, height, width) {
//Determines when x, y coordinates is over "b" element
return $.ui.isOverAxis(y, top, height) && $.ui.isOverAxis(x, left, width);
},
keyCode: {
BACKSPACE: 8,
CAPS_LOCK: 20,
COMMA: 188,
CONTROL: 17,
DELETE: 46,
DOWN: 40,
END: 35,
ENTER: 13,
ESCAPE: 27,
HOME: 36,
INSERT: 45,
LEFT: 37,
NUMPAD_ADD: 107,
NUMPAD_DECIMAL: 110,
NUMPAD_DIVIDE: 111,
NUMPAD_ENTER: 108,
NUMPAD_MULTIPLY: 106,
NUMPAD_SUBTRACT: 109,
PAGE_DOWN: 34,
PAGE_UP: 33,
PERIOD: 190,
RIGHT: 39,
SHIFT: 16,
SPACE: 32,
TAB: 9,
UP: 38
}
};
// WAI-ARIA normalization
if (isFF2) {
var attr = $.attr,
removeAttr = $.fn.removeAttr,
ariaNS = "http://www.w3.org/2005/07/aaa",
ariaState = /^aria-/,
ariaRole = /^wairole:/;
$.attr = function(elem, name, value) {
var set = value !== undefined;
return (name == 'role'
? (set
? attr.call(this, elem, name, "wairole:" + value)
: (attr.apply(this, arguments) || "").replace(ariaRole, ""))
: (ariaState.test(name)
? (set
? elem.setAttributeNS(ariaNS,
name.replace(ariaState, "aaa:"), value)
: attr.call(this, elem, name.replace(ariaState, "aaa:")))
: attr.apply(this, arguments)));
};
$.fn.removeAttr = function(name) {
return (ariaState.test(name)
? this.each(function() {
this.removeAttributeNS(ariaNS, name.replace(ariaState, ""));
}) : removeAttr.call(this, name));
};
}
//jQuery plugins
$.fn.extend({
remove: function() {
// Safari has a native remove event which actually removes DOM elements,
// so we have to use triggerHandler instead of trigger (#3037).
$("*", this).add(this).each(function() {
$(this).triggerHandler("remove");
});
return _remove.apply(this, arguments );
},
enableSelection: function() {
return this
.attr('unselectable', 'off')
.css('MozUserSelect', '')
.unbind('selectstart.ui');
},
disableSelection: function() {
return this
.attr('unselectable', 'on')
.css('MozUserSelect', 'none')
.bind('selectstart.ui', function() { return false; });
},
scrollParent: function() {
var scrollParent;
if(($.browser.msie && (/(static|relative)/).test(this.css('position'))) || (/absolute/).test(this.css('position'))) {
scrollParent = this.parents().filter(function() {
return (/(relative|absolute|fixed)/).test($.curCSS(this,'position',1)) && (/(auto|scroll)/).test($.curCSS(this,'overflow',1)+$.curCSS(this,'overflow-y',1)+$.curCSS(this,'overflow-x',1));
}).eq(0);
} else {
scrollParent = this.parents().filter(function() {
return (/(auto|scroll)/).test($.curCSS(this,'overflow',1)+$.curCSS(this,'overflow-y',1)+$.curCSS(this,'overflow-x',1));
}).eq(0);
}
return (/fixed/).test(this.css('position')) || !scrollParent.length ? $(document) : scrollParent;
}
});
//Additional selectors
$.extend($.expr[':'], {
data: function(a, i, m) {
return $.data(a, m[3]);
},
// TODO: add support for object, area
tabbable: function(a, i, m) {
var nodeName = a.nodeName.toLowerCase();
function isVisible(element) {
return !($(element).is(':hidden') || $(element).parents(':hidden').length);
}
return (
// in tab order
a.tabIndex >= 0 &&
( // filter node types that participate in the tab order
// anchor tag
('a' == nodeName && a.href) ||
// enabled form element
(/input|select|textarea|button/.test(nodeName) &&
'hidden' != a.type && !a.disabled)
) &&
// visible on page
isVisible(a)
);
}
});
// $.widget is a factory to create jQuery plugins
// taking some boilerplate code out of the plugin code
function getter(namespace, plugin, method, args) {
function getMethods(type) {
var methods = $[namespace][plugin][type] || [];
return (typeof methods == 'string' ? methods.split(/,?\s+/) : methods);
}
var methods = getMethods('getter');
if (args.length == 1 && typeof args[0] == 'string') {
methods = methods.concat(getMethods('getterSetter'));
}
return ($.inArray(method, methods) != -1);
}
$.widget = function(name, prototype) {
var namespace = name.split(".")[0];
name = name.split(".")[1];
// create plugin method
$.fn[name] = function(options) {
var isMethodCall = (typeof options == 'string'),
args = Array.prototype.slice.call(arguments, 1);
// prevent calls to internal methods
if (isMethodCall && options.substring(0, 1) == '_') {
return this;
}
// handle getter methods
if (isMethodCall && getter(namespace, name, options, args)) {
var instance = $.data(this[0], name);
return (instance ? instance[options].apply(instance, args)
: undefined);
}
// handle initialization and non-getter methods
return this.each(function() {
var instance = $.data(this, name);
// constructor
(!instance && !isMethodCall &&
$.data(this, name, new $[namespace][name](this, options)));
// method call
(instance && isMethodCall && $.isFunction(instance[options]) &&
instance[options].apply(instance, args));
});
};
// create widget constructor
$[namespace] = $[namespace] || {};
$[namespace][name] = function(element, options) {
var self = this;
this.namespace = namespace;
this.widgetName = name;
this.widgetEventPrefix = $[namespace][name].eventPrefix || name;
this.widgetBaseClass = namespace + '-' + name;
this.options = $.extend({},
$.widget.defaults,
$[namespace][name].defaults,
$.metadata && $.metadata.get(element)[name],
options);
this.element = $(element)
.bind('setData.' + name, function(event, key, value) {
return self._setData(key, value);
})
.bind('getData.' + name, function(event, key) {
return self._getData(key);
})
.bind('remove', function() {
return self.destroy();
});
this._init();
};
// add widget prototype
$[namespace][name].prototype = $.extend({}, $.widget.prototype, prototype);
// TODO: merge getter and getterSetter properties from widget prototype
// and plugin prototype
$[namespace][name].getterSetter = 'option';
};
$.widget.prototype = {
_init: function() {},
destroy: function() {
this.element.removeData(this.widgetName)
.removeClass(this.widgetBaseClass + '-disabled' + ' ' + this.namespace + '-state-disabled')
.removeAttr('aria-disabled');
},
option: function(key, value) {
var options = key,
self = this;
if (typeof key == "string") {
if (value === undefined) {
return this._getData(key);
}
options = {};
options[key] = value;
}
$.each(options, function(key, value) {
self._setData(key, value);
});
},
_getData: function(key) {
return this.options[key];
},
_setData: function(key, value) {
this.options[key] = value;
if (key == 'disabled') {
this.element[value ? 'addClass' : 'removeClass'](
this.widgetBaseClass + '-disabled' + ' ' + this.namespace + '-state-disabled')
.attr("aria-disabled", value);
}
},
enable: function() {
this._setData('disabled', false);
},
disable: function() {
this._setData('disabled', true);
},
_trigger: function(type, event, data) {
var eventName = (type == this.widgetEventPrefix
? type : this.widgetEventPrefix + type);
event = event || $.event.fix({ type: eventName, target: this.element[0] });
return this.element.triggerHandler(eventName, [event, data], this.options[type]);
}
};
$.widget.defaults = {
disabled: false
};
/** Mouse Interaction Plugin **/
$.ui.mouse = {
_mouseInit: function() {
var self = this;
this.element
.bind('mousedown.'+this.widgetName, function(event) {
return self._mouseDown(event);
})
.bind('click.'+this.widgetName, function(event) {
if(self._preventClickEvent) {
self._preventClickEvent = false;
return false;
}
});
// Prevent text selection in IE
if ($.browser.msie) {
this._mouseUnselectable = this.element.attr('unselectable');
this.element.attr('unselectable', 'on');
}
this.started = false;
},
// TODO: make sure destroying one instance of mouse doesn't mess with
// other instances of mouse
_mouseDestroy: function() {
this.element.unbind('.'+this.widgetName);
// Restore text selection in IE
($.browser.msie
&& this.element.attr('unselectable', this._mouseUnselectable));
},
_mouseDown: function(event) {
// we may have missed mouseup (out of window)
(this._mouseStarted && this._mouseUp(event));
this._mouseDownEvent = event;
var self = this,
btnIsLeft = (event.which == 1),
elIsCancel = (typeof this.options.cancel == "string" ? $(event.target).parents().add(event.target).filter(this.options.cancel).length : false);
if (!btnIsLeft || elIsCancel || !this._mouseCapture(event)) {
return true;
}
this.mouseDelayMet = !this.options.delay;
if (!this.mouseDelayMet) {
this._mouseDelayTimer = setTimeout(function() {
self.mouseDelayMet = true;
}, this.options.delay);
}
if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) {
this._mouseStarted = (this._mouseStart(event) !== false);
if (!this._mouseStarted) {
event.preventDefault();
return true;
}
}
// these delegates are required to keep context
this._mouseMoveDelegate = function(event) {
return self._mouseMove(event);
};
this._mouseUpDelegate = function(event) {
return self._mouseUp(event);
};
$(document)
.bind('mousemove.'+this.widgetName, this._mouseMoveDelegate)
.bind('mouseup.'+this.widgetName, this._mouseUpDelegate);
// preventDefault() is used to prevent the selection of text here -
// however, in Safari, this causes select boxes not to be selectable
// anymore, so this fix is needed
if(!$.browser.safari) event.preventDefault();
return true;
},
_mouseMove: function(event) {
// IE mouseup check - mouseup happened when mouse was out of window
if ($.browser.msie && !event.button) {
return this._mouseUp(event);
}
if (this._mouseStarted) {
this._mouseDrag(event);
return event.preventDefault();
}
if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) {
this._mouseStarted =
(this._mouseStart(this._mouseDownEvent, event) !== false);
(this._mouseStarted ? this._mouseDrag(event) : this._mouseUp(event));
}
return !this._mouseStarted;
},
_mouseUp: function(event) {
$(document)
.unbind('mousemove.'+this.widgetName, this._mouseMoveDelegate)
.unbind('mouseup.'+this.widgetName, this._mouseUpDelegate);
if (this._mouseStarted) {
this._mouseStarted = false;
this._preventClickEvent = true;
this._mouseStop(event);
}
return false;
},
_mouseDistanceMet: function(event) {
return (Math.max(
Math.abs(this._mouseDownEvent.pageX - event.pageX),
Math.abs(this._mouseDownEvent.pageY - event.pageY)
) >= this.options.distance
);
},
_mouseDelayMet: function(event) {
return this.mouseDelayMet;
},
// These are placeholder methods, to be overriden by extending plugin
_mouseStart: function(event) {},
_mouseDrag: function(event) {},
_mouseStop: function(event) {},
_mouseCapture: function(event) { return true; }
};
$.ui.mouse.defaults = {
cancel: null,
distance: 1,
delay: 0
};
})(jQuery);