SAAS-1040 - station logo functionality improvements

airtime_mvc/public/js/airtime/common/common.js

@@ -212,6 +212,41 @@ function validateTimeRange() {
     };
 }
 
+// validate uploaded images
+function validateImage(img, el) {
+    // remove any existing error messages
+    if ($("#img-err")) { $("#img-err").remove(); }
+
+    if (img.size > 2048000) { // 2MB - pull this from somewhere instead?
+        // hack way of inserting an error message
+        var err = $.i18n._("Selected file is too large");
+        el.parent().after(
+            "<ul id='img-err' class='errors'>" +
+            "<li>" + err + "</li>" +
+            "</ul>");
+        return false;
+    } else if (validateMimeType(img.type) < 0) {
+        var err = $.i18n._("File format is not supported");
+        el.parent().after(
+            "<ul id='img-err' class='errors'>" +
+            "<li>" + err + "</li>" +
+            "</ul>");
+        return false;
+    }
+    return true;
+}
+
+// validate image mime type
+function validateMimeType(mime) {
+    var extensions = [
+        'image/jpeg',
+        'image/png',
+        'image/gif'
+        // BMP?
+    ];
+    return $.inArray(mime, extensions);
+}
+
 function pad(number, length) {
     return sprintf("%'0"+length+"d", number);
 }