create chunked module and add iajax. Update pkg to handled chunked responses

git-svn-id: file:///root/webif/svn/humax/pkg/src/webif/trunk@273 2a923420-c742-0410-a762-8d5b09965624

var/mongoose/cgi-bin/opkg.jim

@@ -2,7 +2,7 @@
 
 package require cgi
 source /mod/var/mongoose/lib/setup
-require pkg.class
+require pkg.class chunked
 
 puts "Content-Type: text/html"
 puts "Transfer-Encoding: chunked"
@@ -11,22 +11,8 @@ puts ""
 cgi_input
 #cgi_dump
 
-#set _cgi(cmd) {remove binutils}
+set cmd [cgi_get cmd update]
 
-if {![dict exists $_cgi cmd]} { set _cgi(cmd) update }
-
-set cmd [dict get $_cgi cmd]
-
-proc chunk {chk} {
-	puts -nonewline [format "%x\r\n" [string length $chk]]
-	puts -nonewline "$chk\r\n"
-	flush stdout
-}
-
-# Kick the browser into life...
-chunk [string range [format "%301d" 0] 1 end-1]
-
-#puts [exec /mod/var/mongoose/lib/opkg {*}$cmd]
 set bcmd "|/mod/var/mongoose/lib/opkg $cmd"
 set fd [open $bcmd r]
 while {[gets $fd line] >= 0} {

var/mongoose/html/js/iajax.js

@@ -0,0 +1,50 @@
+
+jQuery.ajaxPrefilter(function(options, _, jqXHR) {
+
+    if (jQuery.isFunction(options.progress)) {
+
+        var xhrFactory = options.xhr,
+            interval;
+
+        options.xhr = function() {
+            
+            var xhr = xhrFactory.apply(this, arguments),
+                partial = "",
+                prevcount = 1;
+
+            interval = setInterval(function() {
+
+                var responseText,
+                    jQueryPartial;
+
+                try {
+
+                    responseText = xhr.responseText;
+                    
+                    if (responseText && (responseText.length > partial.length))
+		    {
+
+                        partial = responseText;
+                        jQueryPartial = $(partial).filter("*")
+
+                        if (jQueryPartial.length > prevcount) {
+                            prevcount = jQueryPartial.length;
+                            options.progress(jQueryPartial.filter("*:not(:last)"));
+                        }
+                    }
+                } catch(e) {
+                    alert(e);
+                }
+            }, options.progressInterval);
+
+            return xhr;
+        };
+        function stop()
+	{
+            if (interval)
+                clearInterval(interval);
+        }
+        jqXHR.then(stop, stop);
+    }
+});
+

var/mongoose/html/pkg.shtml

@@ -42,12 +42,17 @@ Update package list from Internet
 	<div id=dspinner><img border=0 src=/img/loading.gif>Processing request...</div>
 </div>
 
+<script type=text/javascript src=/js/iajax.js></script>
 <script type=text/javascript>
 
 var opkg = '/cgi-bin/opkg.jim?cmd=';
 
 $(document).ready(function() {
-	$('#opkgupdate').button().show('slow');
+
+	$('#opkgupdate')
+	    .button()
+	    .click(function() { execopkg('update'); })
+	    .fadeIn('slow');
 
 	$('#pkgtabs').tabs({
 		load: setup_buttons,
@@ -66,6 +71,37 @@ $(document).ready(function() {
 		close: function(e,u) { window.location.reload(true); }
 	});
 
+	jQuery.ajaxSetup({progressInterval: 1});
+
+	function loaddata(data, isfinal)
+	{
+		console.log('loaddata called, final=' + isfinal);
+		console.log('Data: ' + data);
+		$('#dresults').append(data);
+		if (isfinal)
+			$('#dspinner').hide('slow');
+	}
+
+	function execopkg(arg)
+	{
+		$('#dspinner').show();
+		$dialog.dialog('open');
+		$('#dresults').empty();
+		$.ajax({
+			type: "GET",
+			url: opkg + arg,
+			progress: loaddata,
+			success: function(data) {
+				console.log("ajax success");
+				loaddata(data, true);
+			},
+			error: function(_, _, e) {
+				console.log("ajax error");
+				alert(e);
+			}
+		});
+	}
+
 	function setup_buttons()
 	{
 		$('button.remove, button.install, button.upgrade')
@@ -75,20 +111,10 @@ $(document).ready(function() {
 			    !confirm('Please confirm removal of the ' +
 			    $(this).attr('id') + ' package.'))
 				return;
-			$('#dspinner').show();
-			$('#dresults').load(opkg + encodeURIComponent(
-			    $(this).attr('action') + ' ' + $(this).attr('id')),
-			    function() { $('#dspinner').hide('slow') });
-			$dialog.dialog('open');
+			execopkg(encodeURIComponent($(this).attr('action') +
+			    ' ' + $(this).attr('id')));
 		}).fadeIn('slow');
 	}
-
-	$('#opkgupdate').click(function() {
-		$('#result_txt').load(opkg + 'update', function() {
-			$('#results').delay(3000).slideUp('slow');
-		});
-		$('#results').slideDown('slow');
-	});
 });
 
 

var/mongoose/lib/chunked

@@ -0,0 +1,10 @@
+
+proc chunk {chk} {
+	puts -nonewline [format "%x\r\n" [string length $chk]]
+	puts -nonewline "$chk\r\n"
+	flush stdout
+}
+
+# Kick the browser into life...
+chunk [string range [format "%301d" 0] 1 end-1]
+