+++ /dev/null
-<div class="body-wrap" xmlns:ext="http://www.extjs.com"><div class="top-tools"><a class="inner-link" href="#Ext.data.Connection-props"><img src="resources/images/default/s.gif" class="item-icon icon-prop">Properties</a> <a class="inner-link" href="#Ext.data.Connection-methods"><img src="resources/images/default/s.gif" class="item-icon icon-method">Methods</a> <a class="inner-link" href="#Ext.data.Connection-events"><img src="resources/images/default/s.gif" class="item-icon icon-event">Events</a> <a class="inner-link" href="#Ext.data.Connection-configs"><img src="resources/images/default/s.gif" class="item-icon icon-config">Config Options</a> <a class="bookmark" href="../docs/?class=Ext.data.Connection"><img src="resources/images/default/s.gif" class="item-icon icon-fav">Direct Link</a> </div><div class="inheritance res-block"><pre class="res-block-inner"><a href="output/Ext.util.Observable.html" ext:member="" ext:cls="Ext.util.Observable">Observable</a>
- <img src="resources/elbow-end.gif">Connection</pre></div><h1>Class <a href="source/Connection.html#cls-Ext.data.Connection">Ext.data.Connection</a></h1><table cellspacing="0"><tr><td class="label">Package:</td><td class="hd-info">Ext.data</td></tr><tr><td class="label">Defined In:</td><td class="hd-info"><a href="source/Connection.html#cls-Ext.data.Connection">Connection.js</a></td></tr><tr><td class="label">Class:</td><td class="hd-info"><a href="source/Connection.html#cls-Ext.data.Connection">Connection</a></td></tr><tr><td class="label">Subclasses:</td><td class="hd-info"><a href="output/Ext.Ajax.html" ext:cls="Ext.Ajax">Ajax</a></td></tr><tr><td class="label">Extends:</td><td class="hd-info"><a href="output/Ext.util.Observable.html" ext:cls="Ext.util.Observable" ext:member="">Observable</a></td></tr></table><div class="description"><p>The class encapsulates a connection to the page's originating domain, allowing requests to be made
-either to a configured URL, or to a URL specified at request time.</p>
-<p>Requests made by this class are asynchronous, and will return immediately. No data from
-the server will be available to the statement immediately following the <a href="output/Ext.data.Connection.html#Ext.data.Connection-request" ext:member="request" ext:cls="Ext.data.Connection">request</a> call.
-To process returned data, use a
-<a href="#request-option-success" ext:member="request-option-success" ext:cls="Ext.data.Connection">success callback</a>
-in the request options object,
-or an <a href="output/Ext.data.Connection.html#Ext.data.Connection-requestcomplete" ext:member="requestcomplete" ext:cls="Ext.data.Connection">event listener</a>.</p>
-<p><h3>File Uploads</h3><a href="#request-option-isUpload" ext:member="request-option-isUpload" ext:cls="Ext.data.Connection">File uploads</a> are not performed using normal "Ajax" techniques, that
-is they are <b>not</b> performed using XMLHttpRequests. Instead the form is submitted in the standard
-manner with the DOM <tt><form></tt> element temporarily modified to have its
-<a href="http://www.w3.org/TR/REC-html40/present/frames.html#adef-target">target</a> set to refer
-to a dynamically generated, hidden <tt><iframe></tt> which is inserted into the document
-but removed after the return data has been gathered.</p>
-<p>The server response is parsed by the browser to create the document for the IFRAME. If the
-server is using JSON to send the return object, then the
-<a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.17">Content-Type</a> header
-must be set to "text/html" in order to tell the browser to insert the text unchanged into the document body.</p>
-<p>Characters which are significant to an HTML parser must be sent as HTML entities, so encode
-"<" as "&lt;", "&" as "&amp;" etc.</p>
-<p>The response text is retrieved from the document, and a fake XMLHttpRequest object
-is created containing a <tt>responseText</tt> property in order to conform to the
-requirements of event handlers and callbacks.</p>
-<p>Be aware that file upload packets are sent with the content type <a href="http://www.faqs.org/rfcs/rfc2388.html">multipart/form</a>
-and some server technologies (notably JEE) may require some custom processing in order to
-retrieve parameter names and parameter values from the packet content.</p>
-<p>Also note that it's not possible to check the response code of the hidden iframe, so the success handler will ALWAYS fire.</p></div><div class="hr"></div><a id="Ext.data.Connection-configs"></a><h2>Config Options</h2><table cellspacing="0" class="member-table"><tbody><tr><th colspan="2" class="sig-header">Config Options</th><th class="msource-header">Defined By</th></tr><tr class="config-row "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.Connection-autoAbort"></a><b><a href="source/Connection.html#cfg-Ext.data.Connection-autoAbort">autoAbort</a></b> : Boolean<div class="mdesc">Whether this request should abort any pending requests. (defaults to false)</div></td><td class="msource">Connection</td></tr><tr class="config-row "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.Connection-defaultHeaders"></a><b><a href="source/Connection.html#cfg-Ext.data.Connection-defaultHeaders">defaultHeaders</a></b> : Object<div class="mdesc">An object containing request headers which are added
-to each request made by this object. (defaults to undefined)</div></td><td class="msource">Connection</td></tr><tr class="config-row "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.Connection-disableCaching"></a><b><a href="source/Connection.html#cfg-Ext.data.Connection-disableCaching">disableCaching</a></b> : Boolean<div class="mdesc">True to add a unique cache-buster param to GET requests. (defaults to true)</div></td><td class="msource">Connection</td></tr><tr class="config-row "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.Connection-disableCachingParam"></a><b><a href="source/Connection.html#cfg-Ext.data.Connection-disableCachingParam">disableCachingParam</a></b> : String<div class="mdesc">Change the parameter which is sent went disabling caching
-through a cache buster. Defaults to '_dc'</div></td><td class="msource">Connection</td></tr><tr class="config-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.Connection-extraParams"></a><b><a href="source/Connection.html#cfg-Ext.data.Connection-extraParams">extraParams</a></b> : Object<div class="mdesc"><div class="short">An object containing properties which are used as
-extra parameters to each request made by this object. (defaults to ...</div><div class="long">An object containing properties which are used as
-extra parameters to each request made by this object. (defaults to undefined)</div></div></td><td class="msource">Connection</td></tr><tr class="config-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-listeners"></a><b><a href="source/Observable.html#cfg-Ext.util.Observable-listeners">listeners</a></b> : Object<div class="mdesc"><div class="short">A config object containing one or more event handlers to be added to this
-object during initialization. This should ...</div><div class="long"><p>A config object containing one or more event handlers to be added to this
-object during initialization. This should be a valid listeners config object as specified in the
-<a href="output/Ext.util.Observable.html#Ext.util.Observable-addListener" ext:member="addListener" ext:cls="Ext.util.Observable">addListener</a> example for attaching multiple handlers at once.</p>
-<br><p><b><u>DOM events from ExtJs <a href="output/Ext.Component.html" ext:cls="Ext.Component">Components</a></u></b></p>
-<br><p>While <i>some</i> ExtJs Component classes export selected DOM events (e.g. "click", "mouseover" etc), this
-is usually only done when extra value can be added. For example the <a href="output/Ext.DataView.html" ext:cls="Ext.DataView">DataView</a>'s
-<b><code><a href="output/Ext.DataView.html#Ext.DataView-click" ext:member="click" ext:cls="Ext.DataView">click</a></code></b> event passing the node clicked on. To access DOM
-events directly from a Component's HTMLElement, listeners must be added to the <i><a href="output/Ext.Component.html#Ext.Component-getEl" ext:member="getEl" ext:cls="Ext.Component">Element</a></i> after the Component
-has been rendered. A plugin can simplify this step:<pre><code><i>// Plugin is configured <b>with</b> a listeners config object.</i>
-<i>// The Component is appended to the argument list of all handler functions.</i>
-Ext.DomObserver = Ext.extend(Object, {
- constructor: <b>function</b>(config) {
- this.listeners = config.listeners ? config.listeners : config;
- },
-
- <i>// Component passes itself into plugin's init method</i>
- init: <b>function</b>(c) {
- <b>var</b> p, l = this.listeners;
- <b>for</b> (p <b>in</b> l) {
- <b>if</b> (Ext.isFunction(l[p])) {
- l[p] = this.createHandler(l[p], c);
- } <b>else</b> {
- l[p].fn = this.createHandler(l[p].fn, c);
- }
- }
-
- <i>// Add the listeners to the Element immediately following the render call</i>
- c.render = c.render.<a href="output/Function.html#Function-createSequence" ext:member="createSequence" ext:cls="Function">createSequence</a>(<b>function</b>() {
- <b>var</b> e = c.getEl();
- <b>if</b> (e) {
- e.on(l);
- }
- });
- },
-
- createHandler: <b>function</b>(fn, c) {
- <b>return</b> <b>function</b>(e) {
- fn.call(this, e, c);
- };
- }
-});
-
-<b>var</b> combo = <b>new</b> Ext.form.ComboBox({
-
- <i>// Collapse combo when its element is clicked on</i>
- plugins: [ <b>new</b> Ext.DomObserver({
- click: <b>function</b>(evt, comp) {
- comp.collapse();
- }
- })],
- store: myStore,
- typeAhead: true,
- mode: <em>'local'</em>,
- triggerAction: <em>'all'</em>
-});</code></pre></p></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#listeners" ext:member="#listeners" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="config-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.Connection-method"></a><b><a href="source/Connection.html#cfg-Ext.data.Connection-method">method</a></b> : String<div class="mdesc"><div class="short">The default HTTP method to be used for requests.
-(defaults to undefined; if not set, but request params are present, ...</div><div class="long">The default HTTP method to be used for requests.
-(defaults to undefined; if not set, but <a href="output/Ext.data.Connection.html#Ext.data.Connection-request" ext:member="request" ext:cls="Ext.data.Connection">request</a> params are present, POST will be used;
-otherwise, GET will be used.)</div></div></td><td class="msource">Connection</td></tr><tr class="config-row "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.Connection-timeout"></a><b><a href="source/Connection.html#cfg-Ext.data.Connection-timeout">timeout</a></b> : Number<div class="mdesc">The timeout in milliseconds to be used for requests. (defaults to 30000)</div></td><td class="msource">Connection</td></tr><tr class="config-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.Connection-url"></a><b><a href="source/Connection.html#cfg-Ext.data.Connection-url">url</a></b> : String<div class="mdesc"><div class="short">The default URL to be used for requests to the server. Defaults to undefined.
-The url config may be a function which ...</div><div class="long"><p>The default URL to be used for requests to the server. Defaults to undefined.</p>
-<p>The <code>url</code> config may be a function which <i>returns</i> the URL to use for the Ajax request. The scope
-(<code><b>this</b></code> reference) of the function is the <code>scope</code> option passed to the <a href="output/Ext.data.Connection.html#Ext.data.Connection-request" ext:member="request" ext:cls="Ext.data.Connection">request</a> method.</p></div></div></td><td class="msource">Connection</td></tr></tbody></table><a id="Ext.data.Connection-props"></a><h2>Public Properties</h2><div class="no-members">This class has no public properties.</div><a id="Ext.data.Connection-methods"></a><h2>Public Methods</h2><table cellspacing="0" class="member-table"><tbody><tr><th colspan="2" class="sig-header">Method</th><th class="msource-header">Defined By</th></tr><tr class="method-row expandable"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.Connection-Connection"></a><b><a href="source/Connection.html#cls-Ext.data.Connection">Connection</a></b>( <code>Object config</code> )
- <div class="mdesc"><div class="short"></div><div class="long"><div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>config</code> : Object<div class="sub-desc">a configuration object.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Connection</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.Connection-abort"></a><b><a href="source/Connection.html#method-Ext.data.Connection-abort">abort</a></b>( <span title="Optional" class="optional">[<code>Number transactionId</code>]</span> )
- :
- void<div class="mdesc"><div class="short">Aborts any outstanding request.</div><div class="long">Aborts any outstanding request.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>transactionId</code> : Number<div class="sub-desc">(Optional) defaults to the last transaction</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Connection</td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-addEvents"></a><b><a href="source/Observable.html#method-Ext.util.Observable-addEvents">addEvents</a></b>( <code>Object|String o</code>, <code>string Optional.</code> )
- :
- void<div class="mdesc"><div class="short">Adds the specified events to the list of events which this Observable may fire.</div><div class="long">Adds the specified events to the list of events which this Observable may fire.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>o</code> : Object|String<div class="sub-desc">Either an object with event names as properties with a value of <code>true</code>
-or the first event name string if multiple event names are being passed as separate parameters.</div></li><li><code>Optional.</code> : string<div class="sub-desc">Event name if multiple event names are being passed as separate parameters.
-Usage:<pre><code>this.addEvents(<em>'storeloaded'</em>, <em>'storecleared'</em>);</code></pre></div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#addEvents" ext:member="#addEvents" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-addListener"></a><b><a href="source/Observable.html#method-Ext.util.Observable-addListener">addListener</a></b>( <code>String eventName</code>, <code>Function handler</code>, <span title="Optional" class="optional">[<code>Object scope</code>]</span>, <span title="Optional" class="optional">[<code>Object options</code>]</span> )
- :
- void<div class="mdesc"><div class="short">Appends an event handler to this object.</div><div class="long">Appends an event handler to this object.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The name of the event to listen for.</div></li><li><code>handler</code> : Function<div class="sub-desc">The method the event invokes.</div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope (<code><b>this</b></code> reference) in which the handler function is executed.
-<b>If omitted, defaults to the object which fired the event.</b></div></li><li><code>options</code> : Object<div class="sub-desc">(optional) An object containing handler configuration.
-properties. This may contain any of the following properties:<ul>
-<li><b>scope</b> : Object<div class="sub-desc">The scope (<code><b>this</b></code> reference) in which the handler function is executed.
-<b>If omitted, defaults to the object which fired the event.</b></div></li>
-<li><b>delay</b> : Number<div class="sub-desc">The number of milliseconds to delay the invocation of the handler after the event fires.</div></li>
-<li><b>single</b> : Boolean<div class="sub-desc">True to add a handler to handle just the next firing of the event, and then remove itself.</div></li>
-<li><b>buffer</b> : Number<div class="sub-desc">Causes the handler to be scheduled to run in an <a href="output/Ext.util.DelayedTask.html" ext:cls="Ext.util.DelayedTask">Ext.util.DelayedTask</a> delayed
-by the specified number of milliseconds. If the event fires again within that time, the original
-handler is <em>not</em> invoked, but the new handler is scheduled in its place.</div></li>
-<li><b>target</b> : Observable<div class="sub-desc">Only call the handler if the event was fired on the target Observable, <i>not</i>
-if the event was bubbled up from a child Observable.</div></li>
-</ul><br>
-<p>
-<b>Combining Options</b><br>
-Using the options argument, it is possible to combine different types of listeners:<br>
-<br>
-A delayed, one-time listener.
-<pre><code>myDataView.on(<em>'click'</em>, this.onClick, this, {
-single: true,
-delay: 100
-});</code></pre>
-<p>
-<b>Attaching multiple handlers in 1 call</b><br>
-The method also allows for a single argument to be passed which is a config object containing properties
-which specify multiple handlers.
-<p>
-<pre><code>myGridPanel.on({
-<em>'click'</em> : {
- fn: this.onClick,
- scope: this,
- delay: 100
-},
-<em>'mouseover'</em> : {
- fn: this.onMouseOver,
- scope: this
-},
-<em>'mouseout'</em> : {
- fn: this.onMouseOut,
- scope: this
-}
-});</code></pre>
-<p>
-Or a shorthand syntax:<br>
-<pre><code>myGridPanel.on({
-<em>'click'</em> : this.onClick,
-<em>'mouseover'</em> : this.onMouseOver,
-<em>'mouseout'</em> : this.onMouseOut,
- scope: this
-});</code></pre></div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#addListener" ext:member="#addListener" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-enableBubble"></a><b><a href="source/Observable-more.html#method-Ext.util.Observable-enableBubble">enableBubble</a></b>( <code>String/Array events</code> )
- :
- void<div class="mdesc"><div class="short">Enables events fired by this Observable to bubble up an owner hierarchy by calling
-this.getBubbleTarget() if present....</div><div class="long"><p>Enables events fired by this Observable to bubble up an owner hierarchy by calling
-<code>this.getBubbleTarget()</code> if present. There is no implementation in the Observable base class.</p>
-<p>This is commonly used by Ext.Components to bubble events to owner Containers. See <a href="output/Ext.Component.getBubbleTarget.html" ext:cls="Ext.Component.getBubbleTarget">Ext.Component.getBubbleTarget</a>. The default
-implementation in Ext.Component returns the Component's immediate owner. But if a known target is required, this can be overridden to
-access the required target more quickly.</p>
-<p>Example:</p><pre><code>Ext.override(Ext.form.Field, {
- <i>// Add functionality to Field's initComponent to enable the change event to bubble</i>
- initComponent : Ext.form.Field.prototype.initComponent.createSequence(<b>function</b>() {
- this.enableBubble(<em>'change'</em>);
- }),
-
- <i>// We know that we want Field's events to bubble directly to the FormPanel.</i>
- getBubbleTarget : <b>function</b>() {
- <b>if</b> (!this.formPanel) {
- this.formPanel = this.findParentByType(<em>'form'</em>);
- }
- <b>return</b> this.formPanel;
- }
-});
-
-<b>var</b> myForm = <b>new</b> Ext.formPanel({
- title: <em>'User Details'</em>,
- items: [{
- ...
- }],
- listeners: {
- change: <b>function</b>() {
- <i>// Title goes red <b>if</b> form has been modified.</i>
- myForm.header.setStyle(<em>'color'</em>, <em>'red'</em>);
- }
- }
-});</code></pre><div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>events</code> : String/Array<div class="sub-desc">The event name to bubble, or an Array of event names.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#enableBubble" ext:member="#enableBubble" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-fireEvent"></a><b><a href="source/Observable.html#method-Ext.util.Observable-fireEvent">fireEvent</a></b>( <code>String eventName</code>, <code>Object... args</code> )
- :
- Boolean<div class="mdesc"><div class="short">Fires the specified event with the passed parameters (minus the event name).
-An event may be set to bubble up an Obse...</div><div class="long"><p>Fires the specified event with the passed parameters (minus the event name).</p>
-<p>An event may be set to bubble up an Observable parent hierarchy (See <a href="output/Ext.Component.html#Ext.Component-getBubbleTarget" ext:member="getBubbleTarget" ext:cls="Ext.Component">Ext.Component.getBubbleTarget</a>)
-by calling <a href="output/Ext.util.Observable.html#Ext.util.Observable-enableBubble" ext:member="enableBubble" ext:cls="Ext.util.Observable">enableBubble</a>.</p><div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The name of the event to fire.</div></li><li><code>args</code> : Object...<div class="sub-desc">Variable number of parameters are passed to handlers.</div></li></ul><strong>Returns:</strong><ul><li><code>Boolean</code><div class="sub-desc">returns false if any of the handlers return false otherwise it returns true.</div></li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#fireEvent" ext:member="#fireEvent" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-hasListener"></a><b><a href="source/Observable.html#method-Ext.util.Observable-hasListener">hasListener</a></b>( <code>String eventName</code> )
- :
- Boolean<div class="mdesc"><div class="short">Checks to see if this object has any listeners for a specified event</div><div class="long">Checks to see if this object has any listeners for a specified event<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The name of the event to check for</div></li></ul><strong>Returns:</strong><ul><li><code>Boolean</code><div class="sub-desc">True if the event is being listened for, else false</div></li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#hasListener" ext:member="#hasListener" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.Connection-isLoading"></a><b><a href="source/Connection.html#method-Ext.data.Connection-isLoading">isLoading</a></b>( <span title="Optional" class="optional">[<code>Number transactionId</code>]</span> )
- :
- Boolean<div class="mdesc"><div class="short">Determine whether this object has a request outstanding.</div><div class="long">Determine whether this object has a request outstanding.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>transactionId</code> : Number<div class="sub-desc">(Optional) defaults to the last transaction</div></li></ul><strong>Returns:</strong><ul><li><code>Boolean</code><div class="sub-desc">True if there is an outstanding request.</div></li></ul></div></div></div></td><td class="msource">Connection</td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-on"></a><b><a href="source/Observable.html#method-Ext.util.Observable-on">on</a></b>( <code>String eventName</code>, <code>Function handler</code>, <span title="Optional" class="optional">[<code>Object scope</code>]</span>, <span title="Optional" class="optional">[<code>Object options</code>]</span> )
- :
- void<div class="mdesc"><div class="short">Appends an event handler to this object (shorthand for addListener.)</div><div class="long">Appends an event handler to this object (shorthand for <a href="output/Ext.util.Observable.html#Ext.util.Observable-addListener" ext:member="addListener" ext:cls="Ext.util.Observable">addListener</a>.)<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The type of event to listen for</div></li><li><code>handler</code> : Function<div class="sub-desc">The method the event invokes</div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope (<code><b>this</b></code> reference) in which the handler function is executed.
-<b>If omitted, defaults to the object which fired the event.</b></div></li><li><code>options</code> : Object<div class="sub-desc">(optional) An object containing handler configuration.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#on" ext:member="#on" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-purgeListeners"></a><b><a href="source/Observable.html#method-Ext.util.Observable-purgeListeners">purgeListeners</a></b>()
- :
- void<div class="mdesc"><div class="short">Removes all listeners for this object</div><div class="long">Removes all listeners for this object<div class="mdetail-params"><strong>Parameters:</strong><ul><li>None.</li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#purgeListeners" ext:member="#purgeListeners" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-relayEvents"></a><b><a href="source/Observable-more.html#method-Ext.util.Observable-relayEvents">relayEvents</a></b>( <code>Object o</code>, <code>Array events</code> )
- :
- void<div class="mdesc"><div class="short">Relays selected events from the specified Observable as if the events were fired by this.</div><div class="long">Relays selected events from the specified Observable as if the events were fired by <tt><b>this</b></tt>.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>o</code> : Object<div class="sub-desc">The Observable whose events this object is to relay.</div></li><li><code>events</code> : Array<div class="sub-desc">Array of event names to relay.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#relayEvents" ext:member="#relayEvents" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-removeListener"></a><b><a href="source/Observable.html#method-Ext.util.Observable-removeListener">removeListener</a></b>( <code>String eventName</code>, <code>Function handler</code>, <span title="Optional" class="optional">[<code>Object scope</code>]</span> )
- :
- void<div class="mdesc"><div class="short">Removes an event handler.</div><div class="long">Removes an event handler.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The type of event the handler was associated with.</div></li><li><code>handler</code> : Function<div class="sub-desc">The handler to remove. <b>This must be a reference to the function passed into the <a href="output/Ext.util.Observable.html#Ext.util.Observable-addListener" ext:member="addListener" ext:cls="Ext.util.Observable">addListener</a> call.</b></div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope originally specified for the handler.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#removeListener" ext:member="#removeListener" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.Connection-request"></a><b><a href="source/Connection.html#method-Ext.data.Connection-request">request</a></b>( <code>Object options</code> )
- :
- Number<div class="mdesc"><div class="short">Sends an HTTP request to a remote server.
-Important: Ajax server requests are asynchronous, and this call will
-return...</div><div class="long"><p>Sends an HTTP request to a remote server.</p>
-<p><b>Important:</b> Ajax server requests are asynchronous, and this call will
-return before the response has been received. Process any returned data
-in a callback function.</p>
-<pre><code>Ext.Ajax.request({
- url: <em>'ajax_demo/sample.json'</em>,
- success: <b>function</b>(response, opts) {
- <b>var</b> obj = Ext.decode(response.responseText);
- console.dir(obj);
- },
- failure: <b>function</b>(response, opts) {
- console.log(<em>'server-side failure <b>with</b> status code '</em> + response.status);
- }
-});</code></pre>
-<p>To execute a callback function in the correct scope, use the <tt>scope</tt> option.</p><div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>options</code> : Object<div class="sub-desc">An object which may contain the following properties:<ul>
-<li><b>url</b> : String/Function (Optional)<div class="sub-desc">The URL to
-which to send the request, or a function to call which returns a URL string. The scope of the
-function is specified by the <tt>scope</tt> option. Defaults to the configured
-<tt><a href="output/Ext.data.Connection.html#Ext.data.Connection-url" ext:member="url" ext:cls="Ext.data.Connection">url</a></tt>.</div></li>
-<li><b>params</b> : Object/String/Function (Optional)<div class="sub-desc">
-An object containing properties which are used as parameters to the
-request, a url encoded string or a function to call to get either. The scope of the function
-is specified by the <tt>scope</tt> option.</div></li>
-<li><b>method</b> : String (Optional)<div class="sub-desc">The HTTP method to use
-for the request. Defaults to the configured method, or if no method was configured,
-"GET" if no parameters are being sent, and "POST" if parameters are being sent. Note that
-the method name is case-sensitive and should be all caps.</div></li>
-<li><b>callback</b> : Function (Optional)<div class="sub-desc">The
-function to be called upon receipt of the HTTP response. The callback is
-called regardless of success or failure and is passed the following
-parameters:<ul>
-<li><b>options</b> : Object<div class="sub-desc">The parameter to the request call.</div></li>
-<li><b>success</b> : Boolean<div class="sub-desc">True if the request succeeded.</div></li>
-<li><b>response</b> : Object<div class="sub-desc">The XMLHttpRequest object containing the response data.
-See <a href="http://www.w3.org/TR/XMLHttpRequest/">http://www.w3.org/TR/XMLHttpRequest/</a> for details about
-accessing elements of the response.</div></li>
-</ul></div></li>
-<li><a id="request-option-success"></a><b>success</b> : Function (Optional)<div class="sub-desc">The function
-to be called upon success of the request. The callback is passed the following
-parameters:<ul>
-<li><b>response</b> : Object<div class="sub-desc">The XMLHttpRequest object containing the response data.</div></li>
-<li><b>options</b> : Object<div class="sub-desc">The parameter to the request call.</div></li>
-</ul></div></li>
-<li><b>failure</b> : Function (Optional)<div class="sub-desc">The function
-to be called upon failure of the request. The callback is passed the
-following parameters:<ul>
-<li><b>response</b> : Object<div class="sub-desc">The XMLHttpRequest object containing the response data.</div></li>
-<li><b>options</b> : Object<div class="sub-desc">The parameter to the request call.</div></li>
-</ul></div></li>
-<li><b>scope</b> : Object (Optional)<div class="sub-desc">The scope in
-which to execute the callbacks: The "this" object for the callback function. If the <tt>url</tt>, or <tt>params</tt> options were
-specified as functions from which to draw values, then this also serves as the scope for those function calls.
-Defaults to the browser window.</div></li>
-<li><b>timeout</b> : Number (Optional)<div class="sub-desc">The timeout in milliseconds to be used for this request. Defaults to 30 seconds.</div></li>
-<li><b>form</b> : Element/HTMLElement/String (Optional)<div class="sub-desc">The <tt><form></tt>
-Element or the id of the <tt><form></tt> to pull parameters from.</div></li>
-<li><a id="request-option-isUpload"></a><b>isUpload</b> : Boolean (Optional)<div class="sub-desc"><b>Only meaningful when used
-with the <tt>form</tt> option</b>.
-<p>True if the form object is a file upload (will be set automatically if the form was
-configured with <b><tt>enctype</tt></b> "multipart/form-data").</p>
-<p>File uploads are not performed using normal "Ajax" techniques, that is they are <b>not</b>
-performed using XMLHttpRequests. Instead the form is submitted in the standard manner with the
-DOM <tt><form></tt> element temporarily modified to have its
-<a href="http://www.w3.org/TR/REC-html40/present/frames.html#adef-target">target</a> set to refer
-to a dynamically generated, hidden <tt><iframe></tt> which is inserted into the document
-but removed after the return data has been gathered.</p>
-<p>The server response is parsed by the browser to create the document for the IFRAME. If the
-server is using JSON to send the return object, then the
-<a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.17">Content-Type</a> header
-must be set to "text/html" in order to tell the browser to insert the text unchanged into the document body.</p>
-<p>The response text is retrieved from the document, and a fake XMLHttpRequest object
-is created containing a <tt>responseText</tt> property in order to conform to the
-requirements of event handlers and callbacks.</p>
-<p>Be aware that file upload packets are sent with the content type <a href="http://www.faqs.org/rfcs/rfc2388.html">multipart/form</a>
-and some server technologies (notably JEE) may require some custom processing in order to
-retrieve parameter names and parameter values from the packet content.</p>
-</div></li>
-<li><b>headers</b> : Object (Optional)<div class="sub-desc">Request
-headers to set for the request.</div></li>
-<li><b>xmlData</b> : Object (Optional)<div class="sub-desc">XML document
-to use for the post. Note: This will be used instead of params for the post
-data. Any params will be appended to the URL.</div></li>
-<li><b>jsonData</b> : Object/String (Optional)<div class="sub-desc">JSON
-data to use as the post. Note: This will be used instead of params for the post
-data. Any params will be appended to the URL.</div></li>
-<li><b>disableCaching</b> : Boolean (Optional)<div class="sub-desc">True
-to add a unique cache-buster param to GET requests.</div></li>
-</ul></p>
-<p>The options object may also contain any other property which might be needed to perform
-postprocessing in a callback because it is passed to callback functions.</p></div></li></ul><strong>Returns:</strong><ul><li><code>Number</code><div class="sub-desc">transactionId The id of the server transaction. This may be used
-to cancel the request.</div></li></ul></div></div></div></td><td class="msource">Connection</td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-resumeEvents"></a><b><a href="source/Observable.html#method-Ext.util.Observable-resumeEvents">resumeEvents</a></b>()
- :
- void<div class="mdesc"><div class="short">Resume firing events. (see suspendEvents)
-If events were suspended using the queueSuspended parameter, then all
-event...</div><div class="long">Resume firing events. (see <a href="output/Ext.util.Observable.html#Ext.util.Observable-suspendEvents" ext:member="suspendEvents" ext:cls="Ext.util.Observable">suspendEvents</a>)
-If events were suspended using the <tt><b>queueSuspended</b></tt> parameter, then all
-events fired during event suspension will be sent to any listeners now.<div class="mdetail-params"><strong>Parameters:</strong><ul><li>None.</li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#resumeEvents" ext:member="#resumeEvents" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-suspendEvents"></a><b><a href="source/Observable.html#method-Ext.util.Observable-suspendEvents">suspendEvents</a></b>( <code>Boolean queueSuspended</code> )
- :
- void<div class="mdesc"><div class="short">Suspend the firing of all events. (see resumeEvents)</div><div class="long">Suspend the firing of all events. (see <a href="output/Ext.util.Observable.html#Ext.util.Observable-resumeEvents" ext:member="resumeEvents" ext:cls="Ext.util.Observable">resumeEvents</a>)<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>queueSuspended</code> : Boolean<div class="sub-desc">Pass as true to queue up suspended events to be fired
-after the <a href="output/Ext.util.Observable.html#Ext.util.Observable-resumeEvents" ext:member="resumeEvents" ext:cls="Ext.util.Observable">resumeEvents</a> call instead of discarding all suspended events;</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#suspendEvents" ext:member="#suspendEvents" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-un"></a><b><a href="source/Observable.html#method-Ext.util.Observable-un">un</a></b>( <code>String eventName</code>, <code>Function handler</code>, <span title="Optional" class="optional">[<code>Object scope</code>]</span> )
- :
- void<div class="mdesc"><div class="short">Removes an event handler (shorthand for removeListener.)</div><div class="long">Removes an event handler (shorthand for <a href="output/Ext.util.Observable.html#Ext.util.Observable-removeListener" ext:member="removeListener" ext:cls="Ext.util.Observable">removeListener</a>.)<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The type of event the handler was associated with.</div></li><li><code>handler</code> : Function<div class="sub-desc">The handler to remove. <b>This must be a reference to the function passed into the <a href="output/Ext.util.Observable.html#Ext.util.Observable-addListener" ext:member="addListener" ext:cls="Ext.util.Observable">addListener</a> call.</b></div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope originally specified for the handler.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#un" ext:member="#un" ext:cls="Ext.util.Observable">Observable</a></td></tr></tbody></table><a id="Ext.data.Connection-events"></a><h2>Public Events</h2><table cellspacing="0" class="member-table"><tbody><tr><th colspan="2" class="sig-header">Event</th><th class="msource-header">Defined By</th></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.Connection-beforerequest"></a><b><a href="source/Connection.html#event-Ext.data.Connection-beforerequest">beforerequest</a></b> :
- ( <code>Connection conn</code>, <code>Object options</code> )
- <div class="mdesc"><div class="short">Fires before a network request is made to retrieve a data object.</div><div class="long">Fires before a network request is made to retrieve a data object.<div class="mdetail-params"><strong style="font-weight: normal;">Listeners will be called with the following arguments:</strong><ul><li><code>conn</code> : Connection<div class="sub-desc">This Connection object.</div></li><li><code>options</code> : Object<div class="sub-desc">The options config object passed to the <a href="output/Ext.data.Connection.html#Ext.data.Connection-request" ext:member="request" ext:cls="Ext.data.Connection">request</a> method.</div></li></ul></div></div></div></td><td class="msource">Connection</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.Connection-requestcomplete"></a><b><a href="source/Connection.html#event-Ext.data.Connection-requestcomplete">requestcomplete</a></b> :
- ( <code>Connection conn</code>, <code>Object response</code>, <code>Object options</code> )
- <div class="mdesc"><div class="short">Fires if the request was successfully completed.</div><div class="long">Fires if the request was successfully completed.<div class="mdetail-params"><strong style="font-weight: normal;">Listeners will be called with the following arguments:</strong><ul><li><code>conn</code> : Connection<div class="sub-desc">This Connection object.</div></li><li><code>response</code> : Object<div class="sub-desc">The XHR object containing the response data.
-See <a href="http://www.w3.org/TR/XMLHttpRequest/">The XMLHttpRequest Object</a>
-for details.</div></li><li><code>options</code> : Object<div class="sub-desc">The options config object passed to the <a href="output/Ext.data.Connection.html#Ext.data.Connection-request" ext:member="request" ext:cls="Ext.data.Connection">request</a> method.</div></li></ul></div></div></div></td><td class="msource">Connection</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.Connection-requestexception"></a><b><a href="source/Connection.html#event-Ext.data.Connection-requestexception">requestexception</a></b> :
- ( <code>Connection conn</code>, <code>Object response</code>, <code>Object options</code> )
- <div class="mdesc"><div class="short">Fires if an error HTTP status was returned from the server.
-See <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-...</div><div class="long">Fires if an error HTTP status was returned from the server.
-See <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html">HTTP Status Code Definitions</a>
-for details of HTTP status codes.<div class="mdetail-params"><strong style="font-weight: normal;">Listeners will be called with the following arguments:</strong><ul><li><code>conn</code> : Connection<div class="sub-desc">This Connection object.</div></li><li><code>response</code> : Object<div class="sub-desc">The XHR object containing the response data.
-See <a href="http://www.w3.org/TR/XMLHttpRequest/">The XMLHttpRequest Object</a>
-for details.</div></li><li><code>options</code> : Object<div class="sub-desc">The options config object passed to the <a href="output/Ext.data.Connection.html#Ext.data.Connection-request" ext:member="request" ext:cls="Ext.data.Connection">request</a> method.</div></li></ul></div></div></div></td><td class="msource">Connection</td></tr></tbody></table></div>
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git.ithinksw.org / extjs.git / blobdiff