Author: lou
Date: 2008-03-22 03:54:52 -0700 (Sat, 22 Mar 2008)
New Revision: 8346
Modified:
openlaszlo/trunk/lps/components/rpc/ajax.lzx
Log:
Change 20080322-lou-T by [EMAIL PROTECTED] on 2008-03-22 06:51:02 AST
in /Users/lou/src/svn/openlaszlo/trunk
for http://svn.openlaszlo.org/openlaszlo/trunk
Summary: Add introductory paragraphs and code snippet from 3.4
Bugs Fixed: LPP-5658 (partial)
Technical Reviewer: (pending)
QA Reviewer: (pending)
Doc Reviewer: (pending)
Tests: visual verify
Modified: openlaszlo/trunk/lps/components/rpc/ajax.lzx
===================================================================
--- openlaszlo/trunk/lps/components/rpc/ajax.lzx 2008-03-22 10:54:14 UTC
(rev 8345)
+++ openlaszlo/trunk/lps/components/rpc/ajax.lzx 2008-03-22 10:54:52 UTC
(rev 8346)
@@ -1,49 +1,7 @@
<library>
- <!--- Implements XMLHttpRequest
- http://developer.apple.com/internet/webcontent/xmlhttpreq.html
- http://www.whatwg.org/specs/web-apps/current-work/#scripted-http
-
- Incompatibilites with spec:
-
- Proxied:
-
- SOLO:
-
- + Cannot set HTTP headers (except maybe content-type?)
- + Cannot access response headers
- + Cannot send raw POST data(?)
- - but we could eventually send verbatim XML POST data payload
- using XML.sendAndLoad().
- Q: Does XML.sendAndLoad() handle a single text content node
- with no tags around it?
-
- + Cannot send repeated query args in a POST using LoadVars
-
- + Username/password HTTP Auth args to send() not supported.
- Can user/password be sent in URL? We cannot set our own auth headers in
SOLO mode...
-
- Questions:
- In the spec, when you use XMLHTTPRequest.send(string), what is it
supposed to
- do when the content is a string?
- Is it supposed to send the text verbatim as the POST content body?
- -->
-
<class name="XMLHttpRequest" extends="node">
- <!--- readyState Object status integer:
- 0 Uninitialised
- The initial value.
- 1 Open
- The open() method has been successfully called.
- 2 Sent
- The send() method has been successfully called, but no data has
yet been received.
- 3 Receiving
- Data is being received, but the data transfer is not yet
complete.
- 4 Loaded
- The data transfer has been completed.
-
- -->
<attribute name="readyState" value="0" type="number"/>
<!-- Event handler for an event that fires at every state change
@@ -228,8 +186,59 @@
this.dataset.setHeader(key,val);
</method>
-
-
+ <doc>
+ <tag name="shortdesc"><text>An implementation of XMLHttpRequest
(also called "AJAX")</text></tag>
+ <text>
+ <p>This class implements the XMLHTTPRequest as <a
href="http://developer.apple.com/internet/webcontent/xmlhttpreq.html";
shape="rect">
+ specified</a> by the <a
href="http://www.whatwg.org/specs/web-apps/current-work/#scripted-http";
shape="rect">WHATWG</a> consortium.</p>
+ <p>In SOLO deployed applications, this class departs from the
specification in these ways:</p>
+ <ul>
+
+ <li>Cannot set HTTP headers</li>
+
+ <li>Cannot access response headers</li>
+
+ <li>Cannot send raw POST data</li>
+
+ <li>Cannot send repeated query args in a POST using
LoadVars</li>
+
+ <li>Username/password Auth args to send() not
supported</li>
+
+ </ul>
+ <programlisting>
+ <script>
+ function loadXMLDoc(url) {
+ var req = new XMLHttpRequest();
+ req.onreadystatechange = processReqChange;
+ req.open("GET", url, true);
+ req.setRequestHeader('X-Test', 'one');
+ req.setRequestHeader('X-Test', 'two');
+ req.send(null);
+ }
+
+ function processReqChange(request) {
+ Debug.write("processReqChange: req.readyState",
request.readyState);
+ // only if request shows "loaded"
+ if (request.readyState == 4) {
+ // only if "OK"
+ if (request.status == 200) {
+ Debug.write("arg =", request);
+ Debug.write("request.status", request.status);
+ Debug.write("request.responseText:", request.responseText);
+ Debug.write("request.responseXML:", request.responseXML);
+ Debug.write("request.getAllResponseaders:",
+ request.getAllResponseHeaders());
+ } else {
+ Debug.write("There was a problem retrieving the XML data:\n" +
+ request.statusText);
+ }
+ }
+ }
+ </script>
+ </programlisting>
+ </text>
+ </doc>
+
</class>
</library>
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