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diff --git a/files/ru/web/api/htmlformelement/index.html b/files/ru/web/api/htmlformelement/index.html new file mode 100644 index 0000000000..6e83b5de3a --- /dev/null +++ b/files/ru/web/api/htmlformelement/index.html @@ -0,0 +1,273 @@ +--- +title: HTMLFormElement +slug: Web/API/HTMLFormElement +tags: + - API + - HTML DOM + - Interface + - NeedsTranslation + - Reference + - TopicStub +translation_of: Web/API/HTMLFormElement +--- +<div>{{APIRef("HTML DOM")}}</div> + +<p>The <strong><code>HTMLFormElement</code></strong> interface provides methods to create and modify {{HTMLElement("form")}} elements; it inherits from properties and methods of the {{domxref("HTMLElement")}} interface.</p> + +<h2 id="Properties">Properties</h2> + +<p><em>Inherits properties from its parent, {{domxref("HTMLElement")}}.</em></p> + +<dl> + <dt>{{domxref("HTMLFormElement.acceptCharset")}}</dt> + <dd>Is a {{domxref("DOMString")}} that reflects the {{ htmlattrxref("accept-charset", "form") }} HTML attribute, containing a list of character encodings that the server accepts.</dd> + <dt>{{domxref("HTMLFormElement.action")}}</dt> + <dd>Is a {{domxref("DOMString")}} that reflects the {{ htmlattrxref("action", "form") }} HTML attribute, containing the URI of a program that processes the information submitted by the form.</dd> + <dt>{{domxref("HTMLFormElement.autocomplete")}}</dt> + <dd>Is a {{domxref("DOMString")}} that reflects the {{ htmlattrxref("autocomplete", "form") }} HTML attribute, containing a string that indicates whether the controls in this form can have their values automatically populated by the browser.</dd> + <dt>{{domxref("HTMLFormElement.elements")}}<code><a href="/en/DOM/form.elements" title="en/DOM/form.elements"> </a></code>{{readonlyinline}}</dt> + <dd>Returns a live {{domxref("HTMLFormControlsCollection")}} containing all the form controls belonging to this form element.</dd> + <dt>{{domxref("HTMLFormElement.encoding")}}</dt> + <dd>Is a synonym for <code>enctype</code>.</dd> + <dt>{{domxref("HTMLFormElement.enctype")}}</dt> + <dd>Is a {{domxref("DOMString")}} reflects the {{ htmlattrxref("enctype", "form") }} HTML attribute, indicating the type of content that is used to transmit the form to the server. Only specified values can be set.</dd> + <dt>{{domxref("HTMLFormElement.length")}} {{readonlyinline}}</dt> + <dd>Returns a <code>long</code> that represents the number of controls in the form.</dd> + <dt>{{domxref("HTMLFormElement.method")}}</dt> + <dd>Is a {{domxref("DOMString")}} that reflects the {{ htmlattrxref("method", "form") }} HTML attribute, indicating the HTTP method used to submit the form. Only specified values can be set.</dd> + <dt>{{domxref("HTMLFormElement.name")}}</dt> + <dd>Is a {{domxref("DOMString")}} that reflects the {{ htmlattrxref("name", "form") }} HTML attribute, containing the name of the form.</dd> + <dt>{{domxref("HTMLFormElement.noValidate")}}</dt> + <dd>Is a {{jsxref("Boolean")}} that reflects the {{ htmlattrxref("novalidate", "form") }} HTML attribute, indicating that the form should not be validated.</dd> + <dt>{{domxref("HTMLFormElement.target")}}</dt> + <dd>Is a {{domxref("DOMString")}} that reflects the {{ htmlattrxref("target", "form") }} HTML attribute, indicating where to display the results received from submitting the form.</dd> +</dl> + +<h2 id="Methods">Methods</h2> + +<p><em>Inherits methods from its parent, {{domxref("HTMLElement")}}</em><em>.</em></p> + +<dl> + <dt>{{domxref("HTMLFormElement.checkValidity()")}}</dt> + <dd>Returns a {{jsxref("Boolean")}} that is <code>true</code> if the element's child controls are subject to constraint validation and satify those contraints, <span style="line-height: 1.5;">or </span><code style="font-style: normal; line-height: 1.5;">false</code><span style="line-height: 1.5;"> if some controls do not satisfy their constraints. Fires an event named {{event("invalid")}} at any control that does not satisfy its constraints; such controls are considered invalid if the event is not canceled. It is up to the programmer to decide how to respond to <code style="font-style: normal; line-height: 1.5;">false</code>.</span></dd> + <dt>{{domxref("HTMLFormElement.item()")}}</dt> + <dd>Gets the item in the <code>elements</code> collection at the specified index, or null if there is no item at that index. You can also specify the index in array-style brackets or parentheses after the form object name, without calling this method explicitly.</dd> + <dt>{{domxref("HTMLFormElement.namedItem()")}}</dt> + <dd>Gets the item or list of items in <code>elements</code> collection whose <code>name</code> or <code>id</code> match the specified name, or null if no items match. You can also specify the name in array-style brackets or parentheses after the form object name, without calling this method explicitly.</dd> + <dt>{{domxref("HTMLFormElement.submit()")}}</dt> + <dd>Submits the form to the server.</dd> + <dt>{{domxref("HTMLFormElement.reset()")}}</dt> + <dd>Resets the forms to its initial state.</dd> +</dl> + +<dl> + <dt>{{domxref("HTMLFormElement.reportValidity()")}}</dt> + <dd>Returns<span style="line-height: 1.5;"> </span><code style="font-style: normal; line-height: 1.5;">true</code><span style="line-height: 1.5;"> if the element's child controls satisfy their validation constraints. </span><span style="line-height: 1.5;">When</span><span style="line-height: 1.5;"> </span><code style="font-style: normal; line-height: 1.5;">false</code><span style="line-height: 1.5;"> is returned, cancelable</span><span style="line-height: 1.5;"> <code><a href="https://developer.mozilla.org/en-US/docs/Web/Events/invalid" title="/en-US/docs/Web/Events/invalid">invalid</a></code> events are fired for each invalid child and validation problems are reported to the user.</span></dd> +</dl> + +<h2 id="Examples">Examples</h2> + +<p>The following example shows how to create a new form element, modify its attributes and submit it.</p> + +<pre class="brush: js">// Create a form +var f = document.createElement("form"); + +// Add it to the document body +document.body.appendChild(f); + +// Add action and method attributes +f.action = "/cgi-bin/some.cgi"; +f.method = "POST" + +// Call the form's submit method +f.submit(); +</pre> + +<p>In addition, the following complete HTML document shows how to extract information from a form element and to set some of its attributes.</p> + +<pre class="brush: html"><title>Form example</title> +<script type="text/javascript"> + function getFormInfo() { + var info; + + // Get a reference using the forms collection + var f = document.forms["formA"]; + info = "f.elements: " + f.elements + "\n" + + "f.length: " + f.length + "\n" + + "f.name: " + f.name + "\n" + + "f.acceptCharset: " + f.acceptCharset + "\n" + + "f.action: " + f.action + "\n" + + "f.enctype: " + f.enctype + "\n" + + "f.encoding: " + f.encoding + "\n" + + "f.method: " + f.method + "\n" + + "f.target: " + f.target; + document.forms["formA"].elements['tex'].value = info; + } + + // A reference to the form is passed from the + // button's onclick attribute using 'this.form' + function setFormInfo(f) { + f.method = "GET"; + f.action = "/cgi-bin/evil_executable.cgi"; + f.name = "totally_new"; + } +</script> + +<h1>Form example</h1> + +<form name="formA" id="formA" + action="/cgi-bin/test" method="POST"> + <p>Click "Info" to see information about the form. + Click set to change settings, then info again + to see their effect</p> + <p> + <input type="button" value="info" + onclick="getFormInfo();"> + <input type="button" value="set" + onclick="setFormInfo(this.form);"> + <input type="reset" value="reset"> + <br> + <textarea id="tex" style="height:15em; width:20em"> + </textarea> + </p> +</form> +</pre> + +<p>The following example shows how to submit a form in a <a href="/en-US/docs/DOM/window.open" title="/en-US/docs/DOM/window.open">popup window</a>.</p> + +<pre class="brush: html"><!doctype html> +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> +<title>MDN Example</title> +<script type="text/javascript"> +function popupSend (oFormElement) { + if (oFormElement.method && oFormElement.method.toLowerCase() !== "get") { + alert("This script supports the GET method only."); + return; + } + var oField, sFieldType, nFile, sSearch = ""; + for (var nItem = 0; nItem < oFormElement.elements.length; nItem++) { + oField = oFormElement.elements[nItem]; + if (!oField.hasAttribute("name")) { continue; } + sFieldType = oField.nodeName.toUpperCase() === "INPUT" ? oField.getAttribute("type").toUpperCase() : "TEXT"; + if (sFieldType === "FILE") { + for (nFile = 0; nFile < oField.files.length; sSearch += "&" + escape(oField.name) + "=" + escape(oField.files[nFile++].name)); + } else if ((sFieldType !== "RADIO" && sFieldType !== "CHECKBOX") || oField.checked) { + sSearch += "&" + escape(oField.name) + "=" + escape(oField.value); + } + } + open(oFormElement.action.replace(/(?:\?.*)?$/, sSearch.replace(/^&/, "?")), "submit-" + (oFormElement.name || Math.floor(Math.random() * 1e6)), "resizable=yes,scrollbars=yes,status=yes"); +} +</script> + +</head> + +<body> + +<form name="yourForm" action="test.php" method="get" onsubmit="popupSend(this); return false;"> + <p>First name: <input type="text" name="firstname" /><br /> + Last name: <input type="text" name="lastname" /><br /> + Password: <input type="password" name="pwd" /><br /> + <input type="radio" name="sex" value="male" /> Male <input type="radio" name="sex" value="female" /> Female</p> + <p><input type="checkbox" name="vehicle" value="Bike" />I have a bike<br /> + <input type="checkbox" name="vehicle" value="Car" />I have a car</p> + <p><input type="submit" value="Submit" /></p> +</form> + +</body> +</html></pre> + +<h3 id="Submitting_forms_and_uploading_files_using_XMLHttpRequest">Submitting forms and uploading files using <code>XMLHttpRequest</code></h3> + +<p>If you want to know how to serialize and submit a form using the <a href="/en-US/docs/DOM/XMLHttpRequest" title="/en-US/docs/DOM/XMLHttpRequest"><code>XMLHttpRequest</code></a> API, please read <a href="/en-US/docs/DOM/XMLHttpRequest/Using_XMLHttpRequest#Submitting_forms_and_uploading_files" title="/en-US/docs/DOM/XMLHttpRequest/Using_XMLHttpRequest#Submitting_forms_and_uploading_files">this paragraph</a>.</p> + +<h2 id="Specifications">Specifications</h2> + +<table class="standard-table"> + <tbody> + <tr> + <th scope="col">Specification</th> + <th scope="col">Status</th> + <th scope="col">Comment</th> + </tr> + <tr> + <td>{{SpecName('HTML WHATWG', "forms.html#the-form-element", "HTMLFormElement")}}</td> + <td>{{Spec2('HTML WHATWG')}}</td> + <td>No change from {{SpecName("HTML5 W3C")}}</td> + </tr> + <tr> + <td>{{SpecName('HTML5 W3C', "forms.html#the-form-element", "HTMLFormElement")}}</td> + <td>{{Spec2('HTML5 W3C')}}</td> + <td>The elements properties returns an {{domxref("HTMLFormControlsCollection")}} instead of a raw {{domxref("HTMLCollection")}}. This is mainly a technical change.<br> + The following method has been added: <code>checkValidity()</code>.<br> + The following properties have been added: <code>autocomplete</code>, <code>noValidate</code>, and <code>encoding</code>.</td> + </tr> + <tr> + <td>{{SpecName('DOM2 HTML', 'html.html#ID-40002357', 'HTMLFormElement')}}</td> + <td>{{Spec2('DOM2 HTML')}}</td> + <td>No change from {{SpecName("DOM1")}}.</td> + </tr> + <tr> + <td>{{SpecName('DOM1', 'level-one-html.html#ID-40002357', 'HTMLFormElement')}}</td> + <td>{{Spec2('DOM1')}}</td> + <td>Initial definition.</td> + </tr> + </tbody> +</table> + +<h2 id="Browser_compatibility">Browser compatibility</h2> + +<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>Opera</th> + <th>Safari (WebKit)</th> + </tr> + <tr> + <td>Basic support</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatGeckoDesktop(1.0)}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</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 Phone</th> + <th>Opera Mobile</th> + <th>Safari Mobile</th> + </tr> + <tr> + <td>Basic support</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatGeckoMobile(1.0)}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + </tr> + </tbody> +</table> +</div> + +<h2 id="See_also">See also</h2> + +<ul> + <li>The HTML element implementing this interface: {{ HTMLElement("form") }}.</li> +</ul> |