http://www.w3.org/DOM/DOMTM git-svn-id: https://svn.apache.org/repos/asf/xml/commons/trunk@225913 13f79535-47bb-0310-9956-ffa450edef68
170 lines
7.1 KiB
XML
170 lines
7.1 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Id$ -->
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<!-- Event interface -->
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<interface name="Event" id="Events-Event" since="DOM Level 2">
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<descr>
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<p>The <code>Event</code> interface is used to provide contextual information about an event
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to the handler processing the event. An object which implements the <code>Event</code> interface
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is generally passed as the first parameter to an event handler. More specific
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context information is passed to event handlers by deriving additional interfaces from
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<code>Event</code> which contain information directly relating to the type of event
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they accompany. These derived interfaces are also implemented by the object passed to the
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event listener.
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</p>
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</descr>
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<group id="Events-Event-eventPhaseType" name="PhaseType">
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<descr><p>An integer indicating which phase of event flow is being processed.</p></descr>
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<constant name="CAPTURING_PHASE" type="unsigned short" value="1">
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<descr><p>The current event phase is the capturing phase.</p></descr>
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</constant>
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<constant name="AT_TARGET" type="unsigned short" value="2">
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<descr><p>The event is currently being evaluated at the target <code>EventTarget</code>.</p></descr>
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</constant>
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<constant name="BUBBLING_PHASE" type="unsigned short" value="3">
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<descr><p>The current event phase is the bubbling phase.</p></descr>
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</constant>
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</group>
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<attribute type="DOMString" name="type" readonly="yes" id="Events-Event-type">
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<descr>
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<p>The name of the event (case-insensitive). The name must be an <termref def="dt-XML-name">XML
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name</termref>.</p>
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</descr>
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</attribute>
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<attribute type="EventTarget" name="target" readonly="yes" id="Events-Event-target">
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<descr>
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<p>Used to indicate the <code>EventTarget</code> to which the event
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was originally dispatched.
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</p>
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</descr>
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</attribute>
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<attribute type="EventTarget" name="currentTarget" readonly="yes" id="Events-Event-currentTarget">
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<descr>
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<p>Used to indicate the <code>EventTarget</code> whose
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<code>EventListeners</code> are currently being processed. This is particularly
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useful during capturing and bubbling.
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</p>
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</descr>
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</attribute>
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<attribute type="unsigned short" name="eventPhase" readonly="yes" id="Events-Event-eventPhase">
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<descr>
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<p>Used to indicate which phase of event flow is currently
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being evaluated.
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</p>
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</descr>
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</attribute>
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<attribute type="boolean" name="bubbles" readonly="yes" id="Events-Event-canBubble">
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<descr>
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<p>Used to indicate whether or not an event is a bubbling event.
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If the event can bubble the value is true, else the value is false.
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</p>
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</descr>
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</attribute>
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<attribute type="boolean" name="cancelable" readonly="yes" id="Events-Event-canCancel">
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<descr>
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<p>Used to indicate whether or not an event can have its default
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action prevented. If the default action can be prevented the value is true, else the value is false.
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</p>
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</descr>
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</attribute>
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<attribute type="DOMTimeStamp" name="timeStamp" readonly="yes" id="Events-Event-timeStamp">
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<descr>
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<p>
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Used to specify the time (in milliseconds relative
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to the epoch) at which the event was created. Due to the fact that some
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systems may not provide this information the value of
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<code>timeStamp</code> may be not available for all events. When not
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available, a value of 0 will be returned. Examples of epoch time are
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the time of the system start or 0:0:0 UTC 1st January 1970.
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</p>
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</descr>
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</attribute>
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<method name="stopPropagation" id="Events-Event-stopPropagation">
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<descr>
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<p>The <code>stopPropagation</code> method is used prevent further propagation of an event during
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event flow. If this method is called by any <code>EventListener</code> the event will cease
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propagating through the tree. The event will complete dispatch to all listeners on the current
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<code>EventTarget</code> before event flow stops. This method may be used during any stage of
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event flow.</p>
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</descr>
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<parameters>
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</parameters>
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<returns type="void">
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<descr><p></p></descr>
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</returns>
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<raises>
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<!-- No exceptions -->
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</raises>
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</method>
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<method name="preventDefault" id="Events-Event-preventDefault">
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<descr>
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<p>If an event is cancelable, the <code>preventDefault</code> method is used
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to signify that the event is to be canceled, meaning any default action normally
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taken by the implementation as a result of the event will not occur. If, during any stage of event flow,
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the <code>preventDefault</code> method is called the event is canceled.
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Any default action associated with the event will not occur. Calling this method
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for a non-cancelable event has no effect. Once <code>preventDefault</code> has been
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called it will remain in effect throughout the remainder of the event's propagation. This
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method may be used during any stage of event flow.
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</p>
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</descr>
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<parameters>
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</parameters>
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<returns type="void">
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<descr><p></p></descr>
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</returns>
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<raises>
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<!-- No exceptions -->
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</raises>
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</method>
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<method name="initEvent" id="Events-Event-initEvent">
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<descr>
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<p>The <code>initEvent</code> method is used to initialize the value of an <code>Event</code> created through
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the <code>DocumentEvent</code> interface. This method may only be called before the <code>Event</code> has
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been dispatched via the <code>dispatchEvent</code> method, though it may be called multiple times during that
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phase if necessary. If called multiple times the final invocation takes precedence. If called from a
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subclass of <code>Event</code> interface only the values specified in the <code>initEvent</code> method are
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modified, all other attributes are left unchanged.</p>
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</descr>
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<parameters>
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<param name="eventTypeArg" type="DOMString" attr="in">
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<descr><p>Specifies the event type. This type may be any event type currently
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defined in this specification or a new event type.. The string must
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be an <termref def="dt-XML-name">XML name</termref>. </p>
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<p>Any new event type must not begin with any upper, lower, or mixed case version
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of the string "DOM". This prefix is reserved for future DOM event sets. It is also
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strongly recommended that third parties adding their own events use their own prefix to avoid
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confusion and lessen the probability of conflicts with other new events.</p>
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</descr>
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</param>
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<param name="canBubbleArg" type="boolean" attr="in">
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<descr><p>Specifies whether or not the event can bubble.</p>
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</descr>
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</param>
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<param name="cancelableArg" type="boolean" attr="in">
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<descr><p>Specifies whether or not the event's default
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action can be prevented.</p>
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</descr>
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</param>
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</parameters>
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<returns type="void">
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<descr><p></p></descr>
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</returns>
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<raises>
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<!-- No exceptions -->
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</raises>
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</method>
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</interface>
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