jquery-ui/ui/jquery.ui.button.js
2010-03-11 21:17:28 +00:00

330 lines
8.6 KiB
JavaScript

/*
* jQuery UI Button @VERSION
*
* Copyright (c) 2010 AUTHORS.txt (http://jqueryui.com/about)
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*
* http://docs.jquery.com/UI/Button
*
* Depends:
* jquery.ui.core.js
* jquery.ui.widget.js
*/
(function( $ ) {
var lastActive,
baseClasses = "ui-button ui-widget ui-state-default ui-corner-all",
otherClasses = "ui-state-hover ui-state-active " +
"ui-button-icons-only ui-button-icon-only ui-button-text-icons ui-button-text-icon ui-button-text-only",
formResetHandler = function( event ) {
$( ":ui-button", event.target.form ).each(function() {
var inst = $( this ).data( "button" );
setTimeout(function() {
inst.refresh();
}, 1 );
});
},
radioGroup = function( radio ) {
var name = radio.name,
form = radio.form,
radios = $( [] );
if ( name ) {
if ( form ) {
radios = $( form ).find( "[name='" + name + "']" );
} else {
radios = $( "[name='" + name + "']", radio.ownerDocument )
.filter(function() {
return !this.form;
});
}
}
return radios;
};
$.widget( "ui.button", {
options: {
text: true,
label: null,
icons: {
primary: null,
secondary: null
}
},
_create: function() {
this.element.closest( "form" )
.unbind( "reset.button" )
.bind( "reset.button", formResetHandler );
this._determineButtonType();
this.hasTitle = !!this.buttonElement.attr( "title" );
var self = this,
options = this.options,
toggleButton = this.type === "checkbox" || this.type === "radio",
hoverClass = "ui-state-hover" + ( !toggleButton ? " ui-state-active" : "" ),
focusClass = "ui-state-focus";
if ( options.label === null ) {
options.label = this.buttonElement.html();
}
this.buttonElement
.addClass( baseClasses )
.attr( "role", "button" )
.bind( "mouseenter.button", function() {
if ( options.disabled ) {
return;
}
$( this ).addClass( "ui-state-hover" );
if ( this === lastActive ) {
$( this ).addClass( "ui-state-active" );
}
})
.bind( "mouseleave.button", function() {
if ( options.disabled ) {
return;
}
$( this ).removeClass( hoverClass );
})
.bind( "focus.button", function() {
// no need to check disabled, focus won't be triggered anyway
$( this ).addClass( focusClass );
})
.bind( "blur.button", function() {
$( this ).removeClass( focusClass );
});
if ( toggleButton ) {
this.element.bind( "change.button", function() {
self.refresh();
});
}
if ( this.type === "checkbox") {
this.buttonElement.bind( "click.button", function() {
if ( options.disabled ) {
return;
}
$( this ).toggleClass( "ui-state-active" );
self.buttonElement.attr( "aria-pressed", self.element[0].checked );
});
} else if ( this.type === "radio") {
this.buttonElement.bind( "click.button", function() {
if ( options.disabled ) {
return;
}
$( this ).addClass( "ui-state-active" );
self.buttonElement.attr( "aria-pressed", true );
var radio = self.element[ 0 ];
radioGroup( radio )
.not( radio )
.map(function() {
return $( this ).button( "widget" )[ 0 ];
})
.removeClass( "ui-state-active" )
.attr( "aria-pressed", false );
});
} else {
this.buttonElement
.bind( "mousedown.button", function() {
if ( options.disabled ) {
return;
}
$( this ).addClass( "ui-state-active" );
lastActive = this;
$( document ).one( "mouseup", function() {
lastActive = null;
});
})
.bind( "mouseup.button", function() {
if ( options.disabled ) {
return;
}
$( this ).removeClass( "ui-state-active" );
})
.bind( "keydown.button", function(event) {
if ( event.keyCode === $.ui.keyCode.SPACE || event.keyCode === $.ui.keyCode.ENTER ) {
$( this ).addClass( "ui-state-active" );
}
})
.bind( "keyup.button", function() {
$( this ).removeClass( "ui-state-active" );
});
if ( this.buttonElement.is("a") ) {
this.buttonElement.keyup(function(event) {
if ( event.keyCode === $.ui.keyCode.SPACE ) {
// TODO pass through original event correctly (just as 2nd argument doesn't work)
$( this ).click();
}
});
}
}
// TODO: pull out $.Widget's handling for the disabled option into
// $.Widget.prototype._setOptionDisabled so it's easy to proxy and can
// be overridden by individual plugins
$.Widget.prototype._setOption.call( this, "disabled", options.disabled );
this._resetButton();
},
_determineButtonType: function() {
if ( this.element.is(":checkbox") ) {
this.type = "checkbox";
} else {
if ( this.element.is(":radio") ) {
this.type = "radio";
} else {
if (this.element.is("input") ) {
this.type = "input";
} else {
this.type = "button";
}
}
}
if ( this.type === "checkbox" || this.type === "radio" ) {
// we don't search against the document in case the element
// is disconnected from the DOM
this.buttonElement = this.element.parents().last()
.find( "[for=" + this.element.attr("id") + "]" );
this.element.addClass('ui-helper-hidden-accessible');
var checked = this.element.is( ":checked" );
if ( checked ) {
this.buttonElement.addClass( "ui-state-active" );
}
this.buttonElement.attr( "aria-pressed", checked );
} else {
this.buttonElement = this.element;
}
},
widget: function() {
return this.buttonElement;
},
destroy: function() {
this.buttonElement
.removeClass( baseClasses + " ui-helper-hidden-accessible " + otherClasses )
.removeAttr( "role" )
.removeAttr( "aria-pressed" )
.html( this.buttonElement.find(".ui-button-text").html() );
if ( !this.hasTitle ) {
this.buttonElement.removeAttr( "title" );
}
$.Widget.prototype.destroy.call( this );
},
_setOption: function( key, value ) {
$.Widget.prototype._setOption.apply( this, arguments );
this._resetButton();
},
refresh: function() {
if ( this.type === "radio" ) {
radioGroup( this.element[0] ).each(function() {
if ( $( this ).is( ":checked" ) ) {
$( this ).button( "widget" )
.addClass( "ui-state-active" )
.attr( "aria-pressed", true );
} else {
$( this ).button( "widget" )
.removeClass( "ui-state-active" )
.attr( "aria-pressed", false );
}
});
} else if ( this.type === "checkbox" ) {
if ( this.element.is( ":checked" ) ) {
this.buttonElement
.addClass( "ui-state-active" )
.attr( "aria-pressed", true );
} else {
this.buttonElement
.removeClass( "ui-state-active" )
.attr( "aria-pressed", false );
}
}
},
_resetButton: function() {
if ( this.type === "input" ) {
if ( this.options.label ) {
this.element.val( this.options.label );
}
return;
}
var buttonElement = this.buttonElement,
buttonText = $( "<span></span>" )
.addClass( "ui-button-text" )
.html( this.options.label )
.appendTo( buttonElement.empty() )
.text(),
icons = this.options.icons,
multipleIcons = icons.primary && icons.secondary;
if ( icons.primary || icons.secondary ) {
buttonElement.addClass( "ui-button-text-icon" +
( multipleIcons ? "s" : "" ) );
if ( icons.primary ) {
buttonElement.prepend( "<span class='ui-button-icon-primary ui-icon " + icons.primary + "'></span>" );
}
if ( icons.secondary ) {
buttonElement.append( "<span class='ui-button-icon-secondary ui-icon " + icons.secondary + "'></span>" );
}
if ( !this.options.text ) {
buttonElement
.addClass( multipleIcons ? "ui-button-icons-only" : "ui-button-icon-only" )
.removeClass( "ui-button-text-icons ui-button-text-icon" );
if ( !this.hasTitle ) {
buttonElement.attr( "title", buttonText );
}
}
} else {
buttonElement.addClass( "ui-button-text-only" );
}
}
});
$.widget( "ui.buttonset", {
_create: function() {
this.element.addClass( "ui-button-set" );
this.buttons = this.element.find( ":button, :submit, :reset, :checkbox, :radio, a, :data(button)" )
.button()
.map(function() {
return $( this ).button( "widget" )[ 0 ];
})
.removeClass( "ui-corner-all" )
.filter( ":first" )
.addClass( "ui-corner-left" )
.end()
.filter( ":last" )
.addClass( "ui-corner-right" )
.end()
.end();
},
_setOption: function( key, value ) {
if ( key === "disabled" ) {
this.buttons.button( "option", key, value );
}
$.Widget.prototype._setOption.apply( this, arguments );
},
destroy: function() {
this.element.removeClass( "ui-button-set" );
this.buttons
.button( "destroy" )
.removeClass( "ui-corner-left ui-corner-right" );
$.Widget.prototype.destroy.call( this );
}
});
}( jQuery ));