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KDE 4.4 PyKDE API Reference
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<h1>Event Class Reference</h1>
<code>from PyKDE4.khtml import *</code>
<p>
Subclasses: <a href="../khtml/DOM.UIEvent.html">DOM.UIEvent</a>, <a href="../khtml/DOM.MutationEvent.html">DOM.MutationEvent</a><br />
Namespace: DOM.Event<br />
<h2>Detailed Description</h2>
<p>Introduced in DOM Level 2
</p>
<p>
The Event interface is used to provide contextual information about an event
to the handler processing the event. An object which implements the Event
interface is generally passed as the first parameter to an event handler.
More specific context information is passed to event handlers by deriving
additional interfaces from Event which contain information directly relating
to the type of event they accompany. These derived interfaces are also
implemented by the object passed to the event listener.
</p>
<table border="0" cellpadding="0" cellspacing="0"><tr><td colspan="2"><br><h2>Enumerations</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="#PhaseType">PhaseType</a> </td><td class="memItemRight" valign="bottom">{ CAPTURING_PHASE, AT_TARGET, BUBBLING_PHASE }</td></tr>
<tr><td colspan="2"><br><h2>Methods</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#Event">__init__</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#Event">__init__</a> (self, <a href="../khtml/DOM.Event.html">DOM.Event</a> other)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="#bubbles">bubbles</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="#cancelable">cancelable</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../khtml/DOM.Node.html">DOM.Node</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#currentTarget">currentTarget</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">long </td><td class="memItemRight" valign="bottom"><a class="el" href="#eventPhase">eventPhase</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#initEvent">initEvent</a> (self, <a href="../khtml/DOM.DOMString.html">DOM.DOMString</a> eventTypeArg, bool canBubbleArg, bool cancelableArg)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="#isNull">isNull</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#preventDefault">preventDefault</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#stopPropagation">stopPropagation</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../khtml/DOM.Node.html">DOM.Node</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#target">target</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../khtml/DOM.DOMTimeStamp.html">DOM.DOMTimeStamp</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#timeStamp">timeStamp</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../khtml/DOM.DOMString.html">DOM.DOMString</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#type">type</a> (self)</td></tr>
</table>
<hr><h2>Method Documentation</h2><a class="anchor" name="Event"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">__init__</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"></div></div><a class="anchor" name="Event"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">__init__</td>
<td>(</td>
<td class="paramtype"> <em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../khtml/DOM.Event.html">DOM.Event</a> </td>
<td class="paramname"><em>other</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"></div></div><a class="anchor" name="bubbles"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">bool bubbles</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Used to indicate whether or not an event is a bubbling event. If the
event can bubble the value is true, else the value is false.
</p></div></div><a class="anchor" name="cancelable"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">bool cancelable</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Used to indicate whether or not an event can have its default action
prevented. If the default action can be prevented the value is true,
else the value is false.
</p></div></div><a class="anchor" name="currentTarget"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../khtml/DOM.Node.html">DOM.Node</a> currentTarget</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Used to indicate the EventTarget whose EventListeners are currently
being processed. This is particularly useful during capturing and
bubbling.
</p></div></div><a class="anchor" name="eventPhase"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">long eventPhase</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Used to indicate which phase of event flow is currently being evaluated.
</p></div></div><a class="anchor" name="initEvent"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> initEvent</td>
<td>(</td>
<td class="paramtype"> <em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../khtml/DOM.DOMString.html">DOM.DOMString</a> </td>
<td class="paramname"><em>eventTypeArg</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">bool </td>
<td class="paramname"><em>canBubbleArg</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">bool </td>
<td class="paramname"><em>cancelableArg</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>The initEvent method is used to initialize the value of an Event created
through the DocumentEvent interface. This method may only be called
before the Event has been dispatched via the dispatchEvent method,
though it may be called multiple times during that phase if necessary.
If called multiple times the final invocation takes precedence. If
called from a subclass of Event interface only the values specified in
the initEvent method are modified, all other attributes are left
unchanged.
</p>
<p>
</p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>eventTypeArg</em> </td><td> Specifies the event type. This type may be any event
type currently defined in this specification or a new event type.. The
string must be an XML name.
</td></tr>
</table></dl>
<p> Any new event type must not begin with any upper, lower, or mixed case
version of the string "DOM". This prefix is reserved for future DOM
event sets. It is also strongly recommended that third parties adding
their own events use their own prefix to avoid confusion and lessen the
probability of conflicts with other new events.
</p>
<p>
</p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>canBubbleArg</em> </td><td> Specifies whether or not the event can bubble.
</td></tr>
<tr><td></td><td valign="top"><em>cancelableArg</em> </td><td> Specifies whether or not the event's default action can be prevented.
</td></tr>
</table></dl>
<p>
</p></div></div><a class="anchor" name="isNull"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">bool isNull</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"></div></div><a class="anchor" name="preventDefault"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> preventDefault</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>If an event is cancelable, the preventDefault method is used to signify
that the event is to be canceled, meaning any default action normally
taken by the implementation as a result of the event will not occur. If,
during any stage of event flow, the preventDefault method is called the
event is canceled. Any default action associated with the event will not
occur. Calling this method for a non-cancelable event has no effect.
Once preventDefault has been called it will remain in effect throughout
the remainder of the event's propagation. This method may be used during
any stage of event flow.
</p></div></div><a class="anchor" name="stopPropagation"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> stopPropagation</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>The stopPropagation method is used prevent further propagation of an
event during event flow. If this method is called by any EventListener
the event will cease propagating through the tree. The event will
complete dispatch to all listeners on the current EventTarget before
event flow stops. This method may be used during any stage of event flow.
</p></div></div><a class="anchor" name="target"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../khtml/DOM.Node.html">DOM.Node</a> target</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Used to indicate the EventTarget to which the event was originally
dispatched.
</p></div></div><a class="anchor" name="timeStamp"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../khtml/DOM.DOMTimeStamp.html">DOM.DOMTimeStamp</a> timeStamp</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Used to specify the time (in milliseconds relative to the epoch) at
which the event was created. Due to the fact that some systems may not
provide this information the value of timeStamp may be not available for
all events. When not available, a value of 0 will be returned. Examples
of epoch time are the time of the system start or 0:0:0 UTC 1st January 1970.
</p></div></div><a class="anchor" name="type"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../khtml/DOM.DOMString.html">DOM.DOMString</a> type</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>The name of the event (case-insensitive). The name must be an XML name.
</p></div></div><hr><h2>Enumeration Documentation</h2><a class="anchor" name="PhaseType"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr><td class="memname">PhaseType</td>
</tr>
</table>
</div>
<div class="memdoc"><p>An integer indicating which phase of event flow is being processed.
</p>
<p>
AT_TARGET: The event is currently being evaluated at the target
EventTarget.
</p>
<p>
BUBBLING_PHASE: The current event phase is the bubbling phase.
</p>
<p>
CAPTURING_PHASE: The current event phase is the capturing phase.
</p><dl compact><dt><b>Enumerator: </b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0"><tr><td valign="top"><em>CAPTURING_PHASE</em> = 1</td><td><tr><td valign="top"><em>AT_TARGET</em> = 2</td><td><tr><td valign="top"><em>BUBBLING_PHASE</em> = 3</td><td></table>
</dl>
</div></div><p>
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