UIEvent
UIEvent 介面是使用者介面的事件的基本型態。
UIEvent 是從 Event 衍伸過來。 雖然為了相容性，仍留著 UIEvent.initUIEvent() 方法，建立 UIEvent 物件最好是選擇以 UIEvent() constructor 建立。
許多介面直接或間接繼承此介面，例如：MouseEvent、TouchEvent、FocusEvent、KeyboardEvent、WheelEvent、InputEvent 和 CompositionEvent。
建構式
UIEvent()-
建立一個
UIEvent物件 。
屬性
此介面亦繼承其父－－ Event 的屬性：
UIEvent.cancelBubble-
Is a
Booleanindicating whether the bubbling of the event has been canceled or not. UIEvent.detailRead only-
Returns a
longwith details about the event, depending on the event type. UIEvent.isCharRead only-
Returns a
Booleanindicating whether the event produced a key character or not. UIEvent.layerXRead only-
Returns the horizontal coordinate of the event relative to the current layer.
UIEvent.layerYRead only-
Returns the vertical coordinate of the event relative to the current layer.
UIEvent.pageXRead only-
Returns the horizontal coordinate of the event relative to the whole document.
UIEvent.pageYRead only-
Returns the vertical coordinate of the event relative to the whole document.
UIEvent.sourceCapabilitiesRead only-
Returns an instance of the InputDeviceCapabilities interface which provides information about the physical device responsible for generating a touch event.
UIEvent.viewRead only-
Returns a
WindowProxythat contains the view that generated the event. UIEvent.whichRead only-
Returns the numeric
keyCodeof the key pressed, or the character code (charCode) for an alphanumeric key pressed.
方法
此介面亦繼承其父－－ Event 的方法：
UIEvent.initUIEvent()-
初始化
UIEvent物件。若該事件已經觸發的話，此方法就不會執行任何東西。
規範
| Specification |
|---|
| UI Events # idl-uievent |