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diff --git a/files/pt-br/web/api/element/click_event/index.html b/files/pt-br/web/api/element/click_event/index.html new file mode 100644 index 0000000000..1044c53281 --- /dev/null +++ b/files/pt-br/web/api/element/click_event/index.html @@ -0,0 +1,276 @@ +--- +title: click +slug: Web/API/Element/click_event +translation_of: Web/API/Element/click_event +--- +<p>O evento <code>click</code> event é disparado quando o botão de um dispositivo apontador (normalmente o botão de um mouse) é pressionado e solto logo em seguida em um mesmo elemento.</p> + +<h2 id="Informações_gerais">Informações gerais</h2> + +<dl> + <dt style="float: left; text-align: right; width: 120px;">Especificação</dt> + <dd style="margin: 0 0 0 120px;"><a class="external" href="http://www.w3.org/TR/DOM-Level-3-Events/#event-type-click">DOM L3</a></dd> + <dt style="float: left; text-align: right; width: 120px;">Interface</dt> + <dd style="margin: 0 0 0 120px;">{{domxref("MouseEvent")}}</dd> + <dt style="float: left; text-align: right; width: 120px;">Bubbles</dt> + <dd style="margin: 0 0 0 120px;">Sim</dd> + <dt style="float: left; text-align: right; width: 120px;">Cancelável</dt> + <dd style="margin: 0 0 0 120px;">Sim</dd> + <dt style="float: left; text-align: right; width: 120px;">Target</dt> + <dd style="margin: 0 0 0 120px;">Element</dd> + <dt style="float: left; text-align: right; width: 120px;">Ação padrão</dt> + <dd style="margin: 0 0 0 120px;">Variável</dd> +</dl> + +<h2 id="Propriedades">Propriedades</h2> + +<table class="standard-table"> + <thead> + <tr> + <th scope="col">Property</th> + <th scope="col">Type</th> + <th scope="col">Description</th> + </tr> + </thead> + <tbody> + <tr> + <td><code>target</code> {{readonlyInline}}</td> + <td><a href="/en-US/docs/Web/API/EventTarget" title="EventTarget is an interface implemented by objects that can receive events and may have listeners for them."><code>EventTarget</code></a></td> + <td>O alvo do evento (o mais alto na arvore de DOM).</td> + </tr> + <tr> + <td><code>type</code> {{readonlyInline}}</td> + <td><code><a href="/en-US/docs/Web/API/DOMString" title="DOMString is a UTF-16 String. As JavaScript already uses such strings, DOMString is mapped directly to a String.">DOMString</a></code></td> + <td>Tipo do evento.</td> + </tr> + <tr> + <td><code>bubbles</code> {{readonlyInline}}</td> + <td><a href="/en-US/docs/Web/API/Boolean" title="The Boolean object is an object wrapper for a boolean value."><code>Boolean</code></a></td> + <td>Se o evento "bubbles" naturalmente ou não.</td> + </tr> + <tr> + <td><code>cancelable</code> {{readonlyInline}}</td> + <td><a href="/en-US/docs/Web/API/Boolean" title="The Boolean object is an object wrapper for a boolean value."><code>Boolean</code></a></td> + <td>Se o evento é cancelável ou não</td> + </tr> + <tr> + <td><code>view</code> {{readonlyInline}}</td> + <td><a class="new" href="/en-US/docs/Web/API/WindowProxy" rel="nofollow" title="The documentation about this has not yet been written; please consider contributing!"><code>WindowProxy</code></a></td> + <td><a href="/en-US/docs/Web/API/Document/defaultView" title="In browsers, document.defaultView returns the window object associated with a document, or null if none is available."><code>document.defaultView</code></a> (<code>window</code> do documento)</td> + </tr> + <tr> + <td><code>detail</code> {{readonlyInline}}</td> + <td><code>long</code> (<code>float</code>)</td> + <td> + <p>Um contador de cliques consecutivos que ocorrem em um curto espaço de tempo, incrementado em 1.</p> + </td> + </tr> + <tr> + <td><code>currentTarget</code> {{readonlyInline}}</td> + <td>EventTarget</td> + <td>O node que contem o eventListener.</td> + </tr> + <tr> + <td><code>relatedTarget</code> {{readonlyInline}}</td> + <td>EventTarget</td> + <td>Para eventos <code>mouseover</code>, <code>mouseout</code>, <code>mouseenter</code> e <code>mouseleave</code>: o alvo do evento complementar (o <code>mouseleave</code> no caso de um evento <code>mouseenter</code> ). <code>null</code> , se falso.</td> + </tr> + <tr> + <td><code>screenX</code> {{readonlyInline}}</td> + <td>long</td> + <td>A coordenada X do ponteiro do mouse na tela.</td> + </tr> + <tr> + <td><code>screenY</code> {{readonlyInline}}</td> + <td>long</td> + <td>A coordenada Y do ponteiro do mouse na tela.</td> + </tr> + <tr> + <td><code>clientX</code> {{readonlyInline}}</td> + <td>long</td> + <td>A coordenada X do ponteiro do mouse no DOM atual.</td> + </tr> + <tr> + <td><code>clientY</code> {{readonlyInline}}</td> + <td>long</td> + <td>A coordenada Y do ponteiro do mouse no DOM atual.</td> + </tr> + <tr> + <td><code>button</code> {{readonlyInline}}</td> + <td>unsigned short</td> + <td>The button number that was pressed when the mouse event was fired: Left button=0, middle button=1 (if present), right button=2. For mice configured for left handed use in which the button actions are reversed the values are instead read from right to left.</td> + </tr> + <tr> + <td><code>buttons</code> {{readonlyInline}}</td> + <td>unsigned short</td> + <td>The buttons being pressed when the mouse event was fired: Left button=1, Right button=2, Middle (wheel) button=4, 4th button (typically, "Browser Back" button)=8, 5th button (typically, "Browser Forward" button)=16. If two or more buttons are pressed, returns the logical sum of the values. E.g., if Left button and Right button are pressed, returns 3 (=1 | 2). <a href="/en-US/docs/Web/API/MouseEvent">More info</a>.</td> + </tr> + <tr> + <td><code>mozPressure</code> {{readonlyInline}}</td> + <td>float</td> + <td>The amount of pressure applied to a touch or tabdevice when generating the event; this value ranges between 0.0 (minimum pressure) and 1.0 (maximum pressure).</td> + </tr> + <tr> + <td><code>ctrlKey</code> {{readonlyInline}}</td> + <td>boolean</td> + <td><code>true</code> if the control key was down when the event was fired. <code>false</code> otherwise.</td> + </tr> + <tr> + <td><code>shiftKey</code> {{readonlyInline}}</td> + <td>boolean</td> + <td><code>true</code> if the shift key was down when the event was fired. <code>false</code> otherwise.</td> + </tr> + <tr> + <td><code>altKey</code> {{readonlyInline}}</td> + <td>boolean</td> + <td><code>true</code> if the alt key was down when the event was fired. <code>false</code> otherwise.</td> + </tr> + <tr> + <td><code>metaKey</code> {{readonlyInline}}</td> + <td>boolean</td> + <td><code>true</code> if the meta key was down when the event was fired. <code>false</code> otherwise.</td> + </tr> + </tbody> +</table> + +<h2 id="Exemplo">Exemplo</h2> + +<pre class="brush: js"><div id="test"></div> + +<script> + document.getElementById("test").addEventListener("click", function( event ) { + // mostra o contador de cliques dentro da div clicada + event.target.innerHTML = "Total de cliques: " + event.detail; + }, false); +</script> +</pre> + +<h2 id="Compatibilidade_nos_Browsers">Compatibilidade nos Browsers</h2> + +<h3 id="Internet_Explorer">Internet Explorer</h3> + +<p>O Internet Explorer 8 e 9 apresentam um bug onde o elemento com a propriedade {{cssxref("background-color")}} é definida como <a href="/en-US/docs/Web/CSS/color_value#transparent_keyword"><code>transparent</code></a> that are overlaid on top of other element(s) won't receive <code>click</code> events. Todos os eventos <code>click</code> serão disparados no elemento underlying instead. Veja uma demonstração <a href="http://jsfiddle.net/YUKma/show/">neste exemplo</a>.</p> + +<p>Soluções de contorno para este bug:</p> + +<ul> + <li>Somente para o IE9: + <ul> + <li>Defina o <code>{{cssxref("background-color")}} como: <a href="/en-US/docs/Web/CSS/color_value#rgba()">rgba</a>(0,0,0,0)</code></li> + <li>Defina a <code>{{cssxref("opacity")}} como: 0</code> e defina explicitamente {{cssxref("background-color")}} com outro valor diferente de <a href="/en-US/docs/Web/CSS/color_value#transparent_keyword"><code>transparent</code></a></li> + </ul> + </li> + <li>Para IE8 e IE9: Defina a propriedade <code><a href="http://msdn.microsoft.com/en-us/library/ms532847(v=vs.85).aspx">filter</a> como: alpha(opacity=0);</code> e o {{cssxref("background-color")}} com outro valor diferente de <a href="/en-US/docs/Web/CSS/color_value#transparent_keyword"><code>transparent</code></a></li> +</ul> + +<h3 id="Safari_Mobile">Safari Mobile</h3> + +<p>Safari Mobile 7.0+ (and likely earlier versions too) <a href="https://bugs.webkit.org/show_bug.cgi?id=153887">suffers from a bug</a> where <code>click</code> events aren't fired on elements that aren't typically interactive (e.g. {{HTMLElement("div")}}) and which also don't have event listeners directly attached to the elements themselves (i.e. <a href="http://davidwalsh.name/event-delegate">event delegation</a> is being used). See <a href="http://jsfiddle.net/cvrhulu/k9t0sdnf/show/">this live example</a> for a demonstration. See also <a href="https://developer.apple.com/library/safari/documentation/appleapplications/reference/safariwebcontent/HandlingEvents/HandlingEvents.html#//apple_ref/doc/uid/TP40006511-SW6">Safari's docs on making elements clickable</a> and the <a href="https://developer.apple.com/library/safari/documentation/appleapplications/reference/safariwebcontent/HandlingEvents/HandlingEvents.html#//apple_ref/doc/uid/TP40006511-SW7">definition of "clickable element"</a>.</p> + +<p>Known workarounds for this bug:</p> + +<ul> + <li>Set {{cssxref("cursor")}}<code>: pointer;</code> on the element or any of its ancestors.</li> + <li>Add a dummy <code>onclick="void(0)"</code> attribute to the element or any of its ancestors up to but not including {{HTMLElement("body")}}.</li> + <li>Use a typically interactive element (e.g. {{HTMLElement("a")}}) instead of one that isn't typically interactive (e.g. {{HTMLElement("div")}}).</li> + <li>Stop using <code>click</code> <a href="http://davidwalsh.name/event-delegate">event delegation</a>.</li> +</ul> + +<p>Safari Mobile considers the following elements to be typically interactive (and thus they aren't affected by this bug):</p> + +<ul> + <li>{{HTMLElement("a")}} (but it must have an <code>href</code>)</li> + <li>{{HTMLElement("area")}} (but it must have an <code>href</code>)</li> + <li>{{HTMLElement("button")}}</li> + <li>{{HTMLElement("img")}}</li> + <li>{{HTMLElement("input")}}</li> + <li>{{HTMLElement("label")}} (but it must be associated with a form control)</li> + <li>{{HTMLElement("textarea")}}</li> + <li><em>This list is incomplete; you can help MDN by doing further testing/research and expanding it.</em></li> +</ul> + +<p>{{CompatibilityTable}}</p> + +<div id="compat-desktop"> +<table class="compat-table"> + <tbody> + <tr> + <th>Feature</th> + <th>Chrome</th> + <th>Firefox (Gecko)</th> + <th>Internet Explorer</th> + <th>Edge</th> + <th>Opera</th> + <th>Safari</th> + </tr> + <tr> + <td>Basic support</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + </tr> + <tr> + <td>On disabled form elements</td> + <td>{{CompatVersionUnknown}}<sup>[1]</sup></td> + <td>{{CompatNo}}</td> + <td>{{CompatVersionUnknown}}<sup>[2]</sup></td> + <td>{{CompatNo}}</td> + <td>{{CompatVersionUnknown}}<sup>[1]</sup></td> + <td>{{CompatUnknown}}</td> + </tr> + </tbody> +</table> +</div> + +<div id="compat-mobile"> +<table class="compat-table"> + <tbody> + <tr> + <th>Feature</th> + <th>Android</th> + <th>Firefox Mobile (Gecko)</th> + <th>IE Mobile</th> + <th>Opera Mobile</th> + <th>Safari Mobile</th> + </tr> + <tr> + <td>Basic support</td> + <td>{{CompatUnknown}}</td> + <td>{{CompatUnknown}}</td> + <td>{{CompatUnknown}}</td> + <td>{{CompatUnknown}}</td> + <td>{{CompatUnknown}}</td> + </tr> + <tr> + <td>On disabled form elements</td> + <td>{{CompatUnknown}}</td> + <td>{{CompatUnknown}}</td> + <td>{{CompatUnknown}}</td> + <td>{{CompatUnknown}}</td> + <td>{{CompatUnknown}}</td> + </tr> + </tbody> +</table> +</div> + +<p>[1] Only works for {{HTMLElement("textarea")}} elements and some {{HTMLElement("input")}} element types.</p> + +<p>[2] Internet Explorer only triggers the <code>click</code> event on {{HTMLElement("input")}} elements of type <code>checkbox</code> or <code>radio</code> when the element is double-clicked.</p> + +<h2 id="See_also">See also</h2> + +<ul> + <li>{{event("mousedown")}}</li> + <li>{{event("mouseup")}}</li> + <li>{{event("mousemove")}}</li> + <li>{{event("click")}}</li> + <li>{{event("dblclick")}}</li> + <li>{{event("mouseover")}}</li> + <li>{{event("mouseout")}}</li> + <li>{{event("mouseenter")}}</li> + <li>{{event("mouseleave")}}</li> + <li>{{event("contextmenu")}}</li> +</ul> |