Add support for barcode scanner hardware

www/assets/js/add.js

@@ -4,36 +4,6 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  */
 
-$(".scanbarcodebtn").click(function () {
-    scanBarcode(function (code) {
-        playSound("scan");
-        if (code != "") {
-            addPackageByBarcode(code, $("input[name=itemtype]:checked").val(),
-                    function (ids) {
-                        var packageObj = getPackage(ids.packageID);
-                        // Reset item type to default
-                        $("input[name=itemtype][data-default=1]").prop("checked", true);
-                        $("#historylist").prepend('<li class="history-list-item item-content" data-package="' + ids.packageID + '">'
-                                + '  <div class="item-media">'
-                                + '    <i class="icon ' + getIconForType(packageObj.type) + '"></i>'
-                                + '  </div>'
-                                + '  <div class="item-inner">'
-                                + '    <div class="item-title">'
-                                + '      ' + packageObj.address
-                                + '    </div>'
-                                + '  </div>'
-                                + '</li>');
-                        $("#tap-to-remove-history-prompt").removeClass("display-none");
-                        $("#no-history").addClass("display-none");
-                    });
-        } else {
-            app.dialog.alert("Invalid barcode.", "Error");
-        }
-    }, function (error) {
-        app.dialog.alert(error, "Error");
-    });
-});
-
 $(".addpackagebtn").click(function () {
     if ($("input[name=number]").val().trim() == "") {
         playSound("error");
@@ -173,6 +143,41 @@ function setTabSwipable() {
     }
 }
 
+function addPackageBarcode(code) {
+    playSound("scan");
+    if (code != "") {
+        addPackageByBarcode(code, $("input[name=itemtype]:checked").val(),
+                function (ids) {
+                    var packageObj = getPackage(ids.packageID);
+                    // Reset item type to default
+                    $("input[name=itemtype][data-default=1]").prop("checked", true);
+                    $("#historylist").prepend('<li class="history-list-item item-content" data-package="' + ids.packageID + '">'
+                            + '  <div class="item-media">'
+                            + '    <i class="icon ' + getIconForType(packageObj.type) + '"></i>'
+                            + '  </div>'
+                            + '  <div class="item-inner">'
+                            + '    <div class="item-title">'
+                            + '      ' + packageObj.address
+                            + '    </div>'
+                            + '  </div>'
+                            + '</li>');
+                    $("#tap-to-remove-history-prompt").removeClass("display-none");
+                    $("#no-history").addClass("display-none");
+                });
+    } else {
+        app.dialog.alert("Invalid barcode.", "Error");
+    }
+}
+
+$(".scanbarcodebtn").click(function () {
+    scanBarcode(function (code) {
+        addPackageBarcode(code);
+    }, function (error) {
+        app.dialog.alert(error, "Error");
+    });
+});
+
+
 $(window).on('resize', setTabSwipable);
 
 setTabSwipable();

www/assets/js/hardscan.js

@@ -0,0 +1,56 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+function setupHardwareScanner() {
+    try {
+        onScan.detachFrom(document);
+    } catch (ex) {
+        // do nothing
+    }
+
+    if (getStorage("hardwarescanner") == "true") {
+        onScan.attachTo(document, {
+            suffixKeyCodes: [13], // enter-key expected at the end of a scan
+            reactToKeyDown: true,
+            reactToPaste: true, // Compatibility to built-in scanners in paste-mode (as opposed to keyboard-mode)
+            ignoreIfFocusOn: 'input',
+            stopPropagation: true,
+            preventDefault: true,
+            keyCodeMapper: function (evt) {
+                // Handle special char codes
+                switch (evt.which) {
+                    case 119: // F8, separates 42012345 from actual tracking barcode
+                        return "";
+                }
+
+                var char = String.fromCharCode(evt.which);
+                // Handle special characters
+                switch (char) {
+                    case "\u0010": // In some fields in UPS MI codes but pointless
+                        return "";
+                }
+                // Return everything that gets through the special cases above
+                return char;
+            },
+            onScan: function (code, qty) { // Alternative to document.addEventListener('scan')
+                console.log("Scanned: ", code);
+                switch (router.currentRoute.name) {
+                    case "add":
+                        addPackageBarcode(code);
+                        break;
+                    case "track":
+                        openTrackingHistory(code);
+                        break;
+                    case "scanner":
+                        addCodeToScannerList(code);
+                        break;
+                }
+            }
+        });
+    }
+}
+
+setupHardwareScanner();

www/assets/js/settings.js

@@ -94,6 +94,12 @@ $('.item-content[data-setting=wakelock] .toggle input').on("change", function ()
     }
 });
 
+$('.item-content[data-setting=hardwarescanner] .toggle input').on("change", function () {
+    var checked = $(this).prop('checked');
+    setStorage("hardwarescanner", checked);
+    setupHardwareScanner();
+});
+
 $('.item-content[data-setting=alertvolume] .range-slider').on('range:changed', function (e, range) {
     var val = app.range.get(".item-content[data-setting=alertvolume] .range-slider").getValue();
     setStorage("alertvolume", val);

www/assets/js/toolbox_scanner.js

@@ -29,11 +29,7 @@ function brokenScannerEsc() {
 function brokenScannerScan() {
     scanBarcode(function (code) {
         playSound("scan");
-        if (code != "" && code.length > 5 && code.match(/^[0-9A-Z]+$/i)) {
+        addCodeToScannerList(code);
-            addCodeToScannerList(code);
-        } else {
-            app.dialog.alert("That's not a valid tracking code.", "Error");
-        }
     }, function (error) {
         app.dialog.alert(error, "Error");
     });
@@ -52,6 +48,13 @@ function brokenScannerAddTextEntry() {
 function addCodeToScannerList(code) {
     code = code.toUpperCase();
 
+    if (code != "" && code.length > 5 && code.match(/^[0-9A-Z]+$/i)) {
+        // continue
+    } else {
+        app.dialog.alert("That's not a valid tracking code.", "Error");
+        return;
+    }
+
     var signatureregexes = [
         /^E[A-Z][0-9]{9}US$/, // Priority Mail Express
         /^[RV][A-Z][0-9]{9}[A-Z]{2}$/, // Registered mail

www/index.html

@@ -45,6 +45,7 @@
 <script src="node_modules/jsbarcode/dist/JsBarcode.all.min.js"></script>
 <script src="node_modules/bwip-js/dist/bwip-js-min.js"></script>
 <script src="node_modules/leaflet.locatecontrol/dist/L.Control.Locate.min.js"></script>
+<script src="node_modules/onscan.js/onscan.min.js"></script>
 
 <script src="settings.js"></script>
 
@@ -68,6 +69,8 @@
 <script src="routes.js"></script>
 <script src="assets/js/main.js"></script>
 
+<script src="assets/js/hardscan.js"></script>
+
 <script src="cache.js"></script>
 
 <script>

www/routes.js

@@ -521,6 +521,14 @@ var routes = [
                         link: true
                     }
             );
+            settings.push({
+                setting: "hardwarescanner",
+                title: "Use Hardware Scanner",
+                text: "Enable scanning barcodes with a real scanner (not just a camera)",
+                toggle: true,
+                checked: getStorage("hardwarescanner") == "true",
+                onclick: ""
+            });
             if (platform_type == "cordova" && cordova.platformId != "browser") {
                 settings.push({
                     setting: "wakelock",