Display a warning message if the device is probably a Peak (based on the screen resolution), so that the user knows that the text is very small in Firefox OS 1.0.1. This should be fixed in Firefox OS 1.1

This improves a bit #8

js/app.js

@@ -292,13 +292,41 @@ define(function(require) {
         $('#searchingForTitles').hide();
     }
     
+    /**
+     * Checks if the device is a Peak
+     * If it is, display a warning message about the size of text if the version of Firefox OS is 1.0.1
+     */
+    function checkPeakDevice() {
+        // We only test the screen resolution : it is higly unreliable, I know...
+        // But it's only a warning message. So, at worst, a false positive is not a big deal
+        // Among the Firefox OS devices on the market, it is, AFAIK, the only one with this resolution for now
+        // I will update this application with this message removed, as soon as Firefox OS 1.1 is deployed OTA on Peak
+        if (!cookies.hasItem("warnedPeak101") && 
+            ((screen.width===540 && screen.height===960)
+            || (screen.width===960 && screen.height===540))) {
+        
+            // If the focus is on the search field, we have to move it,
+            // else the keyboard hides the message
+            if ($("#prefix").is(":focus")) {
+                $("searchTitles").focus();
+            }
+            
+            alert("Your screen resolution suggests you might using the 'Peak' device from Geeksphone. "
+                + "If it is the case, please check you're using the 1.1 version of Firefox OS (or later). "
+                + "If you're still using version 1.0.1, the application will work but the text will be very small, "
+                + "and hyperlinks difficult to click. "
+                + "The update to 1.1 should be soon automatically deployed by Geeksphone. "
+                + "NB : This message will not be displayed again");
+            // We will not display this warning any more
+            cookies.setItem("warnedPeak101",true);
+        }
+    }
     
     /**
-     * Handles the click on a title
-     * @param {type} event
-     * @returns {undefined}
+     * Checks if the small archive is in use
+     * If it is, display a warning message about the hyperlinks not working
      */
-    function handleTitleClick(event) {
+    function checkSmallArchive() {
         if (localArchive.language === "small" && !cookies.hasItem("warnedSmallArchive")) {
             // The user selected the "small" archive, which is quite incomplete
             // So let's display a warning to the user
@@ -312,6 +340,20 @@ define(function(require) {
             // We will not display this warning again for one day
             cookies.setItem("warnedSmallArchive",true,86400);
         }
+    }
+    
+    
+    /**
+     * Handles the click on a title
+     * @param {type} event
+     * @returns {undefined}
+     */
+    function handleTitleClick(event) {
+        // If we use the small archive, a warning should be displayed to the user
+        checkSmallArchive();
+        
+        // If the device is a Peak, a warning should be displayed to the user about version 1.0.1 of Firefox OS
+        checkPeakDevice();
 
         var titleId = event.target.getAttribute("titleId");
         $("#titleList").empty();