jquery-ui/tests/jquery.simulate.js
2012-02-29 22:08:47 -05:00

260 lines
6.8 KiB
JavaScript

/*
* jquery.simulate - simulate browser mouse and keyboard events
*
* Copyright 2011, AUTHORS.txt (http://jqueryui.com/about)
* Dual licensed under the MIT or GPL Version 2 licenses.
* http://jquery.org/license
*/
;(function( $ ) {
var rkeyEvent = /^key/,
rmouseEvent = /^(?:mouse|contextmenu)|click/;
$.fn.simulate = function( type, options ) {
return this.each(function() {
new $.simulate( this, type, options );
});
};
$.simulate = function( elem, type, options ) {
var method = $.camelCase( "simulate-" + type );
this.target = elem;
this.options = options;
if ( this[ method ] ) {
this[ method ]();
} else {
this.simulateEvent( elem, type, options );
}
};
$.extend( $.simulate.prototype, {
simulateEvent: function( elem, type, options ) {
var event = this.createEvent( type, options );
this.dispatchEvent( elem, type, event, options );
},
createEvent: function( type, options ) {
if ( rkeyEvent.test( type ) ) {
return this.keyEvent( type, options );
}
if ( rmouseEvent.test( type ) ) {
return this.mouseEvent( type, options );
}
},
mouseEvent: function( type, options ) {
var event, eventDoc, doc, body;
options = $.extend({
bubbles: true,
cancelable: (type !== "mousemove"),
view: window,
detail: 0,
screenX: 0,
screenY: 0,
// TODO: default clientX/Y to a position within the target element
clientX: 1,
clientY: 1,
ctrlKey: false,
altKey: false,
shiftKey: false,
metaKey: false,
button: 0,
relatedTarget: undefined
}, options );
if ( document.createEvent ) {
event = document.createEvent( "MouseEvents" );
event.initMouseEvent( type, options.bubbles, options.cancelable,
options.view, options.detail,
options.screenX, options.screenY, options.clientX, options.clientY,
options.ctrlKey, options.altKey, options.shiftKey, options.metaKey,
options.button, options.relatedTarget || document.body.parentNode );
// IE 9+ creates events with pageX and pageY set to 0.
// Trying to modify the properties throws an error,
// so we define getters to return the correct values.
if ( event.pageX === 0 && event.pageY === 0 && Object.defineProperty ) {
eventDoc = event.relatedTarget.ownerDocument || document;
doc = eventDoc.documentElement;
body = eventDoc.body;
Object.defineProperty( event, "pageX", {
get: function() {
return options.clientX +
( doc && doc.scrollLeft || body && body.scrollLeft || 0 ) -
( doc && doc.clientLeft || body && body.clientLeft || 0 );
}
});
Object.defineProperty( event, "pageY", {
get: function() {
return options.clientY +
( doc && doc.scrollTop || body && body.scrollTop || 0 ) -
( doc && doc.clientTop || body && body.clientTop || 0 );
}
});
}
} else if ( document.createEventObject ) {
event = document.createEventObject();
$.extend( event, options );
// TODO: what is this mapping for?
event.button = { 0:1, 1:4, 2:2 }[ event.button ] || event.button;
}
return event;
},
keyEvent: function( type, options ) {
var event;
options = $.extend({
bubbles: true,
cancelable: true,
view: window,
ctrlKey: false,
altKey: false,
shiftKey: false,
metaKey: false,
keyCode: 0,
charCode: undefined
}, options );
if ( document.createEvent ) {
try {
event = document.createEvent( "KeyEvents" );
event.initKeyEvent( type, options.bubbles, options.cancelable, options.view,
options.ctrlKey, options.altKey, options.shiftKey, options.metaKey,
options.keyCode, options.charCode );
// TODO: what is this supporting?
} catch( err ) {
event = document.createEvent( "Events" );
event.initEvent( type, options.bubbles, options.cancelable );
$.extend( event, {
view: options.view,
ctrlKey: options.ctrlKey,
altKey: options.altKey,
shiftKey: options.shiftKey,
metaKey: options.metaKey,
keyCode: options.keyCode,
charCode: options.charCode
});
}
} else if ( document.createEventObject ) {
event = document.createEventObject();
$.extend( event, options );
}
// TODO: can we hook into core's logic?
if ( $.browser.msie || $.browser.opera ) {
// TODO: is charCode ever <0 ? Can we just use charCode || keyCode?
event.keyCode = (options.charCode > 0) ? options.charCode : options.keyCode;
event.charCode = undefined;
}
return event;
},
// TODO: does this need type? Can't we just check event.type?
dispatchEvent: function( elem, type, event ) {
if ( elem.dispatchEvent ) {
elem.dispatchEvent( event );
} else if ( elem.fireEvent ) {
elem.fireEvent( "on" + type, event );
}
},
simulateFocus: function() {
var focusinEvent,
triggered = false,
element = $( this.target );
function trigger() {
triggered = true;
}
element.bind( "focus", trigger );
element[ 0 ].focus();
if ( !triggered ) {
focusinEvent = $.Event( "focusin" );
focusinEvent.preventDefault();
element.trigger( focusinEvent );
element.triggerHandler( "focus" );
}
element.unbind( "focus", trigger );
},
simulateBlur: function() {
var focusoutEvent,
triggered = false,
element = $( this.target );
function trigger() {
triggered = true;
}
element.bind( "blur", trigger );
element[ 0 ].blur();
// blur events are async in IE
setTimeout(function() {
// IE won't let the blur occur if the window is inactive
if ( element[ 0 ].ownerDocument.activeElement === element[ 0 ] ) {
element[ 0 ].ownerDocument.body.focus();
}
// Firefox won't trigger events if the window is inactive
// IE doesn't trigger events if we had to manually focus the body
if ( !triggered ) {
focusoutEvent = $.Event( "focusout" );
focusoutEvent.preventDefault();
element.trigger( focusoutEvent );
element.triggerHandler( "blur" );
}
element.unbind( "blur", trigger );
}, 1 );
}
});
/** complex events **/
function findCenter( elem ) {
var offset,
document = $( elem.ownerDocument );
elem = $( elem );
offset = elem.offset();
return {
x: offset.left + elem.outerWidth() / 2 - document.scrollLeft(),
y: offset.top + elem.outerHeight() / 2 - document.scrollTop()
};
}
$.extend( $.simulate.prototype, {
simulateDrag: function() {
var target = this.target,
options = this.options,
center = findCenter( target ),
x = Math.floor( center.x ),
y = Math.floor( center.y ),
dx = options.dx || 0,
dy = options.dy || 0,
target = this.target,
coord = { clientX: x, clientY: y };
this.simulateEvent( target, "mousedown", coord );
coord = { clientX: x + 1, clientY: y + 1 };
this.simulateEvent( document, "mousemove", coord );
coord = { clientX: x + dx, clientY: y + dy };
this.simulateEvent( document, "mousemove", coord );
this.simulateEvent( document, "mousemove", coord );
this.simulateEvent( target, "mouseup", coord );
this.simulateEvent( target, "click", coord );
}
});
})( jQuery );