add sanity check & debug mode to prefs; misc code cleanups

[tt-rss.git] / prefs.js

diff --git a/prefs.js b/prefs.js
index 19fcc8b6a035d4572b0972be6a407e0b5b96ec54..eed755d5afd830d48a2fe8645bb8c22569738311 100644 (file)
--- a/prefs.js
+++ b/prefs.js
@@ -10,6 +10,8 @@ var piggie_fwd = true;
 
 var xmlhttp = Ajax.getTransport();
 
+var init_params = new Array();
+
 function expand_feed_callback() {
        if (xmlhttp.readyState == 4) {
                try {   
@@ -1157,9 +1159,69 @@ function selectTab(id, noupdate) {
                }
        }
 
+       if (active_tab != id) {
+               storeInitParam("prefs_active_tab", id);
+       }
+
        active_tab = id;
+}
+
+function backend_sanity_check_callback() {
 
-       setCookie('ttrss_pref_acttab', active_tab);
+       if (xmlhttp.readyState == 4) {
+
+               try {
+               
+                       if (!xmlhttp.responseXML) {
+                               fatalError(3, "[D001, Received reply is not XML]: " + xmlhttp.responseText);
+                               return;
+                       }
+       
+                       var reply = xmlhttp.responseXML.firstChild.firstChild;
+       
+                       if (!reply) {
+                               fatalError(3, "[D002, Invalid RPC reply]: " + xmlhttp.responseText);
+                               return;
+                       }
+       
+                       var error_code = reply.getAttribute("error-code");
+               
+                       if (error_code && error_code != 0) {
+                               return fatalError(error_code, reply.getAttribute("error-msg"));
+                       }
+       
+                       debug("sanity check ok");
+
+                       var params = reply.nextSibling;
+
+                       if (params) {
+                               debug('reading init-params...');
+                               var param = params.firstChild;
+
+                               while (param) {
+                                       var k = param.getAttribute("key");
+                                       var v = param.getAttribute("value");
+                                       debug(k + " => " + v);
+                                       init_params[k] = v;                                     
+                                       param = param.nextSibling;
+                               }
+                       }
+
+                       init_second_stage();
+
+               } catch (e) {
+                       exception_error("backend_sanity_check_callback", e);
+               }
+       } 
+}
+
+function init_second_stage() {
+
+       active_tab = getInitParam("prefs_active_tab");
+       if (!active_tab) active_tab = "genConfig";
+       selectTab(active_tab);
+       
+       notify("");
 
 }
 
@@ -1170,6 +1232,11 @@ function init() {
                if (arguments.callee.done) return;
                arguments.callee.done = true;           
 
+               if (getURLParam('debug')) {
+                       document.getElementById('debug_output').style.display = 'block';
+                       debug('debug mode activated');
+               }
+
                // IE kludge
                if (!xmlhttp) {
                        document.getElementById("prefContent").innerHTML = 
@@ -1178,12 +1245,10 @@ function init() {
                        return;
                }
 
-               active_tab = getCookie("ttrss_pref_acttab");
-               if (!active_tab) active_tab = "genConfig";
-               selectTab(active_tab);
-       
-               document.onkeydown = hotkey_handler;
-               notify("");
+               xmlhttp.open("GET", "backend.php?op=rpc&subop=sanityCheck", true);
+               xmlhttp.onreadystatechange=backend_sanity_check_callback;
+               xmlhttp.send(null);
+
        } catch (e) {
                exception_error("init", e);
        }