From 04223cfedb0e31308da83ef817124330b0c49c75 Mon Sep 17 00:00:00 2001
From: Armand Tresova <xjsv24@gmail.com>
Date: Sun, 4 Feb 2018 14:19:02 -0500
Subject: [PATCH] Moved docs to root & added missing common.js

---
 {en-US/docs => docs}/Display.png  | Bin
 {en-US/docs => docs}/Settings.png | Bin
 en-US/js/common.js                |  91 ++++++++++++++++++++++++++++++
 3 files changed, 91 insertions(+)
 rename {en-US/docs => docs}/Display.png (100%)
 rename {en-US/docs => docs}/Settings.png (100%)
 create mode 100644 en-US/js/common.js

diff --git a/en-US/docs/Display.png b/docs/Display.png
similarity index 100%
rename from en-US/docs/Display.png
rename to docs/Display.png
diff --git a/en-US/docs/Settings.png b/docs/Settings.png
similarity index 100%
rename from en-US/docs/Settings.png
rename to docs/Settings.png
diff --git a/en-US/js/common.js b/en-US/js/common.js
new file mode 100644
index 0000000..f47a49c
--- /dev/null
+++ b/en-US/js/common.js
@@ -0,0 +1,91 @@
+$.support.cors = true;
+var isUpToDateResults = true;
+
+function debug(msg) {
+    switch(typeof msg) {
+        case 'object':
+            for(var propName in msg) {
+                System.Debug.outputString(propName + ': ' + msg[propName]);
+            }
+            break;
+        case 'array':
+            for (var i = 0; i < msg.length; i++) {
+                System.Debug.outputString(msg[i]);
+            }
+            break;
+        default:
+            System.Debug.outputString(msg);
+            break;
+    }
+}
+
+// compare two versions, return true if local is up to date, false otherwise
+// if both versions are in the form of major[.minor][.patch] then the comparison parses and compares as such
+// otherwise the versions are treated as strings and normal string compare is done
+var VPAT = /^\d+(\.\d+){0,2}$/;
+function isUpToDate(local, remote) {
+    if (!local || !remote || local.length === 0 || remote.length === 0)
+        return false;
+    if (local == remote)
+        return true;
+    if (VPAT.test(local) && VPAT.test(remote)) {
+        var lparts = local.split('.');
+        while(lparts.length < 3)
+            lparts.push('0');
+        var rparts = remote.split('.');
+        while (rparts.length < 3)
+            rparts.push('0');
+        for (var i = 0; i < 3; i++) {
+            var l = parseInt(lparts[i], 10);
+            var r = parseInt(rparts[i], 10);
+            if (l === r)
+                continue;
+            return l > r;
+        }
+        return true;
+    } else {
+        return local >= remote;
+    }
+}
+
+function checkForUpdate() {
+    $.getJSON('https://api.github.com/repos/XjSv/Cryptocurrencies-Price-Tracker-Gadget/tags', function(data) {
+        var currentVersion = System.Gadget.version;
+        var latestVersion = data[0].name.slice(1); // Get the latest tag name and remove the 'v'.
+        isUpToDateResults = isUpToDate(currentVersion, latestVersion);
+
+        if (!isUpToDateResults) {
+            var latestVersionDownloadLink = 'https://github.com/XjSv/Cryptocurrencies-Price-Tracker-Gadget/releases/download/v' + latestVersion + '/CryptocurrenciesPriceTracker.gadget'
+            $('#out-of-date').html('<a onclick="System.Gadget.close()" href="' + latestVersionDownloadLink + '">v' + latestVersion + ' is available!</a>');
+        }
+    });
+}
+
+checkForUpdate(); // Initially check for an update on init
+setTimeout(checkForUpdate, 86400000); // Then check for updates every 24 hours.
+
+function saveSetting(theSettingName, aSettingValue) {
+    try {
+        System.Gadget.Settings.writeString(theSettingName, aSettingValue);
+    } catch (objException) {
+        debug('Write Setting Exception');
+        debug(objException);
+    }
+}
+
+function readSetting(theSettingName, defaultValueIfEmpty) {
+    var retVal = '';
+    try {
+        retVal = System.Gadget.Settings.readString(theSettingName);
+    } catch (objException)  {
+        debug('Read Setting Exception');
+        debug(objException);
+        retVal = '';
+    }
+
+    if (retVal == '') {
+        return defaultValueIfEmpty;
+    } else {
+        return retVal;
+    }
+}
\ No newline at end of file