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---
title: Event.eventPhase
slug: Web/API/Event/eventPhase
tags:
- API
- DOM
- Gecko
- Gecko DOM Reference
- Property
- Reference
translation_of: Web/API/Event/eventPhase
---
<p>{{ ApiRef("DOM") }}</p>
<h3 id="Summary">Общая информация</h3>
<p>Отображает текущую фазу процесса обработки события.</p>
<h3 id="Syntax">Синтаксис</h3>
<pre class="eval"><em>var phase</em> = event.eventPhase;
</pre>
<p>Возвращает целое число, соответствующее одной из 4 констант:</p>
<ul>
<li><code>Event.NONE = 0</code></li>
<li><code>Event.CAPTURING_PHASE = 1</code></li>
<li><code>Event.AT_TARGET = 2</code></li>
<li><code>Event.BUBBLING_PHASE = 3</code></li>
</ul>
<p>Смысл констант смотри в <a class="external" href="http://www.w3.org/TR/DOM-Level-3-Events/#event-flow">section 3.1, Event dispatch and DOM event flow</a>, спецификации DOM Level 3.</p>
<h3 id="Пример">Пример</h3>
<pre><!DOCTYPE html>
<html>
<head> <title>Event Propagation</title>
<style type="text/css">
body { font-family:'Trebuchet MS'; }
div { margin: 20px; padding: 4px; border: thin black solid; }
#divInfo { margin: 18px; padding: 8px; background-color:white; font-size:80%; }
</style>
</head>
<body>
<h4>Event Propagation Chain</h4>
<ul>
<li>Click 'd1'</li>
<li>Analyse event propagation chain</li>
<li>Click next div and repeat the experience</li>
<li>Change Capturing mode</li>
<li>Repeat the experience</li>
</ul>
<input type="checkbox" id="chCapture" /> Use Capturing
<div id="d1">d1
<div id="d2">d2
<div id="d3">d3
<div id="d4">d4</div>
</div>
</div>
</div>
<div id="divInfo"></div>
<script>
var
clear = false,
divInfo = null,
divs = null,
useCapture = false;
window.onload = function ()
{
divInfo = document.getElementById("divInfo");
divs = document.getElementsByTagName('div');
chCapture = document.getElementById("chCapture");
chCapture.onclick = function ()
{
RemoveListeners();
AddListeners();
}
Clear();
AddListeners();
}
function RemoveListeners()
{
for (var i = 0; i < divs.length; i++)
{
var d = divs[i];
if (d.id != "divInfo")
{
d.removeEventListener("click", OnDivClick, true);
d.removeEventListener("click", OnDivClick, false);
}
}
}
function AddListeners()
{
for (var i = 0; i < divs.length; i++)
{
var d = divs[i];
if (d.id != "divInfo")
{
d.addEventListener("click", OnDivClick, false);
if (chCapture.checked)
d.addEventListener("click", OnDivClick, true);
d.onmousemove = function () { clear = true; };
}
}
}
function OnDivClick(e)
{
if (clear)
{
Clear();
clear = false;
}
if (e.eventPhase == 2)
e.currentTarget.style.backgroundColor = 'red';
var level =
e.eventPhase == 0 ? "none" :
e.eventPhase == 1 ? "capturing" :
e.eventPhase == 2 ? "target" :
e.eventPhase == 3 ? "bubbling" : "error";
divInfo.innerHTML += e.currentTarget.id + "; eventPhase: " + level + "<br/>";
}
function Clear()
{
for (var i = 0; i < divs.length; i++)
{
if (divs[i].id != "divInfo")
divs[i].style.backgroundColor = (i & 1) ? "#f6eedb" : "#cceeff";
}
divInfo.innerHTML = '';
}
</script>
</body>
</html></pre>
<h3 id="Specification">Спецификация</h3>
<p><a class="external" href="http://www.w3.org/TR/2000/REC-DOM-Level-2-Events-20001113/events.html#Events-Event-eventPhase">DOM Level 2 Events: Event.eventPhase </a></p>
<p>{{ languages( { "pl": "pl/DOM/event.eventPhase" } ) }}</p>
|
