silverstripe-framework/thirdparty/jquery-ui/ui.spinner.js

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/*
* jQuery UI Spinner @VERSION
*
* Copyright (c) 2008 jQuery
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*
* http://docs.jquery.com/UI/Spinner
*
* Depends:
* ui.core.js
*/
(function($) {
$.widget('ui.spinner', {
_init: function() {
// terminate initialization if spinner already applied to current element
if($.data(this.element[0], 'spinner')) return;
// check for onInit callback
if (this.options.init) {
this.options.init(this.ui(null));
}
// check for decimals in steppinng and set _decimals as internal (needs cleaning up)
this._decimals = 0;
if (this.options.stepping.toString().indexOf('.') != -1) {
var s = this.options.stepping.toString();
this._decimals = s.slice(s.indexOf('.')+1, s.length).length;
}
//Initialize needed constants
var self = this;
this.element
.addClass('ui-spinner-box')
.attr('autocomplete', 'off'); // switch off autocomplete in opera
this._setValue( isNaN(this._getValue()) ? this.options.start : this._getValue() );
this.element
.wrap('<div>')
.parent()
.addClass('ui-spinner')
.append('<button class="ui-spinner-up" type="button">&#9650;</button>')
.find('.ui-spinner-up')
.bind('mousedown', function(e) {
$(this).addClass('ui-spinner-pressed');
if(!self.counter) self.counter = 1;
self._mousedown(100, '_up', e);
})
.bind('mouseup', function(e) {
$(this).removeClass('ui-spinner-pressed');
if(self.counter == 1) self._up(e);
self._mouseup(e);
})
.bind('mouseout', function(e) {
$(this).removeClass('ui-spinner-pressed');
self._mouseup(e);
})
// mousedown/mouseup capture first click, now handle second click
.bind('dblclick', function(e) {
$(this).removeClass('ui-spinner-pressed');
self._up(e);
})
.bind('keydown.spinner', function(e) {
var KEYS = $.keyCode;
if (e.keyCode == KEYS.SPACE || e.keyCode == KEYS.ENTER) {
$(this).addClass('ui-spinner-pressed');
if(!self.counter) self.counter = 1;
self._up.call(self, e);
} else if (e.keyCode == KEYS.DOWN || e.keyCode == KEYS.RIGHT) {
self.element.siblings('.ui-spinner-down').focus();
} else if (e.keyCode == KEYS.LEFT) {
self.element.focus();
}
})
.bind('keyup.spinner', function(e) {
$(this).removeClass('ui-spinner-pressed');
self.counter = 0;
self._propagate('change', e);
})
.end()
.append('<button class="ui-spinner-down" type="button">&#9660;</button>')
.find('.ui-spinner-down')
.bind('mousedown', function(e) {
$(this).addClass('ui-spinner-pressed');
if(!self.counter) self.counter = 1;
self._mousedown(100, '_down', e);
})
.bind('mouseup', function(e) {
$(this).removeClass('ui-spinner-pressed');
if(self.counter == 1) self._down();
self._mouseup(e);
})
.bind('mouseout', function(e) {
$(this).removeClass('ui-spinner-pressed');
self._mouseup(e);
})
// mousedown/mouseup capture first click, now handle second click
.bind('dblclick', function(e) {
$(this).removeClass('ui-spinner-pressed');
self._down(e);
})
.bind('keydown.spinner', function(e) {
var KEYS = $.keyCode;
if (e.keyCode == KEYS.SPACE || e.keyCode == KEYS.ENTER) {
$(this).addClass('ui-spinner-pressed');
if(!self.counter) self.counter = 1;
self._down.call(self, e);
} else if (e.keyCode == KEYS.UP || e.keyCode == KEYS.LEFT) {
self.element.siblings('.ui-spinner-up').focus();
}
})
.bind('keyup.spinner', function(e) {
$(this).removeClass('ui-spinner-pressed');
self.counter = 0;
self._propagate('change', e);
})
.end();
// DataList: Set contraints for object length and step size.
// Manipulate height of spinner.
this._items = this.element.children().length;
if (this._items > 1) {
this.element
.addClass('ui-spinner-list')
.css('height', this.element.outerHeight()/this._items)
.children()
.addClass('ui-spinner-listitem')
.end()
.parent()
.css('height', this.element.outerHeight())
.end();
this.options.stepping = 1;
this.options.min = 0;
this.options.max = this._items-1;
}
this.element
.bind('keydown.spinner', function(e) {
if(!self.counter) self.counter = 1;
return self._keydown.call(self, e);
})
.bind('keyup.spinner', function(e) {
self.counter = 0;
self._propagate('change', e);
})
.bind('blur.spinner', function(e) {
self._cleanUp();
});
if ($.fn.mousewheel) {
this.element.mousewheel(function(e, delta) {
self._mousewheel(e, delta);
});
}
},
_constrain: function() {
if(this.options.min != undefined && this._getValue() < this.options.min) this._setValue(this.options.min);
if(this.options.max != undefined && this._getValue() > this.options.max) this._setValue(this.options.max);
},
_cleanUp: function() {
this._setValue(this._getValue());
this._constrain();
},
_spin: function(d, e) {
if (this.disabled) return;
if(isNaN(this._getValue())) this._setValue(this.options.start);
this._setValue(this._getValue() + (d == 'up' ? 1:-1) * (this.options.incremental && this.counter > 100 ? (this.counter > 200 ? 100 : 10) : 1) * this.options.stepping);
this._animate(d);
this._constrain();
if(this.counter) this.counter++;
this._propagate('spin', e);
},
_down: function(e) {
this._spin('down', e);
this._propagate('down', e);
},
_up: function(e) {
this._spin('up', e);
this._propagate('up', e);
},
_mousedown: function(i, d, e) {
var self = this;
i = i || 100;
if(this.timer) window.clearInterval(this.timer);
this.timer = window.setInterval(function() {
self[d](e);
if(self.counter > 20) self._mousedown(20, d, e);
}, i);
},
_mouseup: function(e) {
this.counter = 0;
if(this.timer) window.clearInterval(this.timer);
this.element[0].focus();
this._propagate('change', e);
},
_keydown: function(e) {
var KEYS = $.keyCode;
if(e.keyCode == KEYS.UP) this._up(e);
if(e.keyCode == KEYS.DOWN) this._down(e);
if(e.keyCode == KEYS.HOME) this._setValue(this.options.min || this.options.start); //Home key goes to min, if defined, else to start
if(e.keyCode == KEYS.END && this.options.max != undefined) this._setValue(this.options.max); //End key goes to maximum
return (e.keyCode == KEYS.TAB || e.keyCode == KEYS.BACKSPACE ||
e.keyCode == KEYS.LEFT || e.keyCode == KEYS.RIGHT || e.keyCode == KEYS.PERIOD ||
e.keyCode == KEYS.NUMPAD_DECIMAL || e.keyCode == KEYS.NUMPAD_SUBTRACT ||
(e.keyCode >= 96 && e.keyCode <= 105) || // add support for numeric keypad 0-9
(/[0-9\-\.]/).test(String.fromCharCode(e.keyCode))) ? true : false;
},
_mousewheel: function(e, delta) {
delta = ($.browser.opera ? -delta / Math.abs(delta) : delta);
delta > 0 ? this._up(e) : this._down(e);
e.preventDefault();
},
_getValue: function() {
return parseFloat(this.element.val().replace(/[^0-9\-\.]/g, ''));
},
_setValue: function(newVal) {
if(isNaN(newVal)) newVal = this.options.start;
this.element.val(
this.options.currency ?
$.ui.spinner.format.currency(newVal, this.options.currency) :
$.ui.spinner.format.number(newVal, this._decimals)
);
},
_animate: function(d) {
if (this.element.hasClass('ui-spinner-list') && ((d == 'up' && this._getValue() <= this.options.max) || (d == 'down' && this._getValue() >= this.options.min)) ) {
this.element.animate({marginTop: '-' + this._getValue() * this.element.outerHeight() }, {
duration: 'fast',
queue: false
});
}
},
_addItem: function(html) {
if (!this.element.is('input')) {
var wrapper = 'div';
if (this.element.is('ol') || this.element.is('ul')) {
wrapper = 'li';
}
this.element.append('<'+ wrapper +' class="ui-spinner-dyn">'+ html + '</'+ wrapper +'>');
}
},
plugins: {},
ui: function(e) {
return {
options: this.options,
element: this.element,
value: this._getValue(),
add: this._addItem
};
},
_propagate: function(n,e) {
$.ui.plugin.call(this, n, [e, this.ui()]);
return this.element.triggerHandler(n == 'spin' ? n : 'spin'+n, [e, this.ui()], this.options[n]);
},
destroy: function() {
if(!$.data(this.element[0], 'spinner')) return;
if ($.fn.mousewheel) {
this.element.unmousewheel();
}
this.element
.removeClass('ui-spinner-box ui-spinner-list')
.removeAttr('disabled')
.removeAttr('autocomplete')
.removeData('spinner')
.unbind('.spinner')
.siblings()
.remove()
.end()
.children()
.removeClass('ui-spinner-listitem')
.remove('.ui-spinner-dyn')
.end()
.parent()
.removeClass('ui-spinner ui-spinner-disabled')
.before(this.element.clone())
.remove()
.end();
},
enable: function() {
this.element
.removeAttr('disabled')
.siblings()
.removeAttr('disabled')
.parent()
.removeClass('ui-spinner-disabled');
this.disabled = false;
},
disable: function() {
this.element
.attr('disabled', true)
.siblings()
.attr('disabled', true)
.parent()
.addClass('ui-spinner-disabled');
this.disabled = true;
}
});
$.extend($.ui.spinner, {
defaults: {
stepping: 1,
start: 0,
incremental: true,
currency: false
},
format: {
number: function(num, dec) {
return this.round(num, dec);
},
currency: function(num, sym) {
return (num !== Math.abs(num) ? '-' : '') + sym + this.round(Math.abs(num), 2);
},
round: function(num, dec) {
var s = Math.round(parseFloat(num)*Math.pow(10, dec)) / Math.pow(10, dec); // round off weird decimals
if (dec > 0) {
s = s + ((s.toString().indexOf('.') == -1) ? '.' : '') + '0000000001';
s = s.substr(0, s.indexOf('.')+1+dec);
} else {
s = Math.round(s);
}
return s;
}
}
});
})(jQuery);