X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=testing%2FMCTXWeb%2Fpublic_html%2Fstatic%2Fmctx.gui.js;h=773fa2335bf48b79e05749595542dcd22b407a91;hb=71c13fe3c04db7f93a69cbc6a6c7c3dc2393bf3f;hp=7c87c3790f75460345114cf573d0ab8ee1a4562a;hpb=7805efadd8cfde75fafc29a3bfa23cd3023121dc;p=matches%2FMCTX3420.git

diff --git a/testing/MCTXWeb/public_html/static/mctx.gui.js b/testing/MCTXWeb/public_html/static/mctx.gui.js
index 7c87c37..773fa23 100644
--- a/testing/MCTXWeb/public_html/static/mctx.gui.js
+++ b/testing/MCTXWeb/public_html/static/mctx.gui.js
@@ -1,14 +1,28 @@
 /**
  * MCTX3420 2013 GUI stuff.
+ * Coding style:
+ *  - Always end statements with semicolons
+ *  - Egyptian brackets are highly recommended (*cough*).
+ *  - Don't use synchronous stuff - hook events into callbacks
+ *  - $.fn functions should return either themselves or some useful object
+ *    to allow for chaining of method calls
  */
 
 mctx = {};
-mctx.api = location.protocol + "//" +  location.host + "/api/";
+//Don't use this in the final version
+mctx.location = window.location.pathname;
+mctx.location = mctx.location.substring(0, mctx.location.lastIndexOf('/')) + "/";
+//mctx.location = location.protocol + "//" + location.host + "/";
+mctx.api = location.protocol + "//" + location.host + "/" + "api/";
 mctx.expected_api_version = 0;
-mctx.key = undefined;
 mctx.has_control = false;
+mctx.debug = true;
 
-mctx.return_codes = {
+mctx.statusCodes = {
+  STATUS_OK : 1
+};
+
+mctx.statusCodesDescription = {
   "1" : "Ok",
   "-1" : "General error",
   "-2" : "Unauthorized",
@@ -22,7 +36,8 @@ mctx.sensors = {
   2 : {name : "Strain gauge 3"},
   3 : {name : "Strain gauge 4"},
   4 : {name : "Pressure sensor 1"},
-  5 : {name : "Pressure sensor 2"}
+  5 : {name : "Pressure sensor 2"},
+  6 : {name : "Pressure sensor 3"}
 };
 
 mctx.actuators = {
@@ -36,13 +51,68 @@ mctx.strain_gauges = {};
 mctx.strain_gauges.ids = [0, 1, 2, 3];
 mctx.strain_gauges.time_limit = 20;
 
+/**
+ * Logs a message if mctx.debug is enabled. This function takes
+ * a variable number of arguments and passes them 
+ * to alert or console.log (based on browser support).
+ * @returns {undefined}
+ */
+function debugLog () {
+  if (mctx.debug) {
+    if (typeof console === "undefined" || typeof console.log === "undefined") {
+      for (var i = 0; i < arguments.length; i++) {
+        alert(arguments[i]);
+      }
+    } else {
+      console.log.apply(this, arguments);
+    }
+  }
+}
+
 /**
  * Writes the current date to wherever it's called.
  */
-function getDate(){
+function getDate() {
 	document.write((new Date()).toDateString());
 }
 
+/**
+ * Should be run before the load of any GUI page.
+ * To hook events to be called after this function runs,
+ * use the 'always' method, e.g runBeforeLoad().always(function() {my stuff});
+ * @param {type} isLoginPage
+ * @returns The return value of calling $.ajax
+ */
+function runBeforeLoad(isLoginPage) {
+  return $.ajax({
+    url : mctx.api + "identify"
+  }).done(function (data) {
+    if (data.logged_in && isLoginPage) {
+      if (mctx.debug) {
+        debugLog("Redirect disabled!");
+      } else {
+        window.location = mctx.location;
+      }
+    } else if (!data.logged_in && !isLoginPage) {
+      if (mctx.debug) {
+        debugLog("Redirect disabled!");
+      } else {
+        //Note: this only clears the nameless cookie
+        document.cookie = ""; 
+        window.location = mctx.location + "login.html";
+      }
+    } else {
+      mctx.friendlyName = data.friendly_name;
+    }
+  }).fail(function (jqHXR) {
+    if (mctx.debug) {
+      debugLog("Failed to ident server. Is API running?")
+    } else if (!isLoginPage) {
+      window.location = mctx.location + "login.html";
+    }
+  });
+}
+
 /**
  * Populates a submenu of the navigation bar
  * @param {string} header The header
@@ -55,7 +125,7 @@ $.fn.populateSubmenu = function(header, items, translator) {
   var submenuHeader = $("<li/>").append($("<a/>", {text : header, href : "#"}));
   var submenu = $("<ul/>", {"class" : "submenu"});
   
-  for (item in items) {
+  for (var item in items) {
     var info = translator(item, items);
     submenu.append($("<li/>").append(
           $("<a/>", {text : info.text, 
@@ -89,10 +159,11 @@ $.fn.populateNavbar = function () {
 
 /**
  * Sets the camera autoupdater
+ * Obsolete?
  * @returns {$.fn}
  */
 $.fn.setCamera = function () {
-  var url = mctx.api + "image";
+  var url = mctx.api + "image";  //http://beaglebone/api/image
   var update = true;
 
   //Stop updating if we can't retrieve an image!
@@ -118,6 +189,10 @@ $.fn.setCamera = function () {
   return this;
 };
 
+/**
+ * Sets the strain graphs to graph stuff. Obsolete?
+ * @returns {$.fn}
+ */
 $.fn.setStrainGraphs = function () {
   var sensor_url = mctx.api + "sensors";
   var graphdiv = this;
@@ -143,39 +218,91 @@ $.fn.setStrainGraphs = function () {
       }
       $.plot(graphdiv, data);
       setTimeout(updater, 500);
-    }, function () {alert("It crashed");});
+    }, function () {debugLog("It crashed");});
   };
   
   updater();
   return this;
 };
 
+/**
+ * Performs a login attempt.
+ * @returns The AJAX object of the login request */
 $.fn.login = function () {
   var username = this.find("input[name='username']").val();
   var password = this.find("input[name='pass']").val();
-  var force = this.find("input[name='force']").is(":checked");
-  var url = mctx.api + "control";
-  
-  var authFunc = function(xhr) {
-    xhr.setRequestHeader("Authorization",
-        "Basic " + base64.encode(username + ":" + password));
+  var out = this.find("#result");
+  var redirect = function () {
+    window.location.href = mctx.location;
   };
-
-  $.ajax({
-    url : url,
-    data : {action : "lock", force : (force ? true : undefined)},
-    beforeSend : authFunc
+  
+  out.removeAttr("class");
+  out.text("Logging in...");
+  
+  return $.ajax({
+    url : mctx.api + "bind",
+    data : {user: username, pass : password}
   }).done(function (data) {
-    mctx.key = data.key;
     if (data.status < 0) {
-      alert("no - " + data.description);
+      mctx.has_control = false;
+      out.attr("class", "fail");
+      out.text("Login failed: " + data.description);
     } else {
+      //todo: error check
       mctx.has_control = true;
-      alert("yes - " + mctx.key);
+      out.attr("class", "pass");
+      out.text("Login ok!");
+      setTimeout(redirect, 800);      
     }
   }).fail(function (jqXHR) {
-    mctx.key = undefined;
     mctx.has_control = false;
-    alert("no");
+    out.attr("class", "fail");
+    out.text("Login request failed - connection issues.")
   });
-};
\ No newline at end of file
+};
+
+/**
+ * Performs a logout request. The nameless cookie is
+ * always cleared and the browser redirected to the login page,
+ * independent of whether or not logout succeeded.
+ * @returns  The AJAX object of the logout request.
+ */
+$.fn.logout = function () {
+  return $.ajax({
+    url : mctx.api + "unbind"
+  }).always(function () {
+    //Note: this only clears the nameless cookie
+    document.cookie = ""; 
+    window.location = mctx.location + "login.html";
+  });
+};
+
+/**
+ * Sets the error log to continuously update.
+ * @returns itself */
+$.fn.setErrorLog = function () {
+  var url = mctx.api + "errorlog";
+  var outdiv = this;
+  
+  var updater = function () {
+    $.ajax({url : url}).done(function (data) {
+      outdiv.text(data);
+      outdiv.scrollTop(
+        outdiv[0].scrollHeight - outdiv.height()
+      );
+      setTimeout(updater, 2000);
+    }).fail(function (jqXHR) {
+      if (jqXHR.status === 502 || jqXHR.status === 0) {
+        outdiv.text("Failed to retrieve the error log.");
+      }
+      setTimeout(updater, 4000);
+    });
+  };
+  
+  updater();
+  return this;
+};
+
+$(document).ajaxError(function (event, jqXHR) {
+  //console.log("AJAX query failed with: " + jqXHR.status + " (" + jqXHR.statusText + ")");
+});
\ No newline at end of file