upd examples

applications/system/js_app/examples/apps/Scripts/js_examples/blebeacon.js

@@ -1,3 +1,6 @@
+// Script cannot work without blebeacon module so check before
+checkSdkFeatures(["blebeacon"]);
+
 let blebeacon = require("blebeacon");
 
 // Stop if previous background beacon is active

applications/system/js_app/examples/apps/Scripts/js_examples/i2c.js

@@ -1,3 +1,6 @@
+// Script cannot work without i2c module so check before
+checkSdkFeatures(["i2c"]);
+
 // Connect an 24C32N EEPROM to the I2C bus of the board. SDA=pin 15, SCL=pin 16, VCC=pin 9, GND=pin 8.
 let i2c = require("i2c");
 

applications/system/js_app/examples/apps/Scripts/js_examples/spi.js

@@ -1,12 +1,16 @@
+// Script cannot work without spi module so check before
+checkSdkFeatures(["spi"]);
+
 // Connect a w25q32 SPI device to the Flipper Zero.
 // D1=pin 2 (MOSI), SLK=pin 5 (SCK), GND=pin 8 (GND), D0=pin 3 (MISO), CS=pin 4 (CS), VCC=pin 9 (3V3)
 let spi = require("spi");
 
 // Display textbox so user can scroll to see all output.
 let eventLoop = require("event_loop");
 let gui = require("gui");
+let textBoxView = require("gui/text_box");
 let text = "SPI demo\n";
-let textBox = require("gui/text_box").makeWith({
+let textBox = textBoxView.makeWith({
     focus: "end",
     font: "text",
     text: text,

applications/system/js_app/examples/apps/Scripts/js_examples/subghz.js

@@ -1,3 +1,6 @@
+// Script cannot work without subghz module so check before
+checkSdkFeatures(["subghz"]);
+
 let subghz = require("subghz");
 subghz.setup();
 

applications/system/js_app/examples/apps/Scripts/js_examples/usbdisk.js

@@ -1,10 +1,39 @@
+// Script cannot work without usbdisk module so check before
+checkSdkFeatures(["usbdisk"]);
+
 let usbdisk = require("usbdisk");
+let storage = require("storage");
+
+let imagePath = "/ext/apps_data/mass_storage/128MB.img";
+let imageSize = 128 * 1024 * 1024;
+
+let imageExisted = storage.fileExists(imagePath);
+if (imageExisted) {
+    print("Disk image '128MB' already exists");
+} else {
+    // CreateImage isn't necessary to overall function, check when its used not at script start
+    if (doesSdkSupport(["usbdisk-createimage"])) {
+        print("Creating disk image '128MB'...");
+        usbdisk.createImage(imagePath, imageSize);
+    } else {
+        die("Disk image '128MB' not present, can't auto-create");
+    }
+}
+
 print("Starting UsbDisk...");
 usbdisk.start("/ext/apps_data/mass_storage/128MB.img");
+
 print("Started, waiting until ejected...");
 while (!usbdisk.wasEjected()) {
     delay(1000);
 }
+
 print("Ejected, stopping UsbDisk...");
 usbdisk.stop();
+
+if (!imageExisted) {
+    print("Removing disk image...");
+    storage.remove(imagePath);
+}
+
 print("Done");

applications/system/js_app/examples/apps/Scripts/js_examples/widget.js

@@ -1,17 +1,20 @@
+// Script cannot work without widget module so check before
+checkSdkFeatures(["widget"]);
+
 let widget = require("widget");
 
 let demo_seconds = 30;
 
-print("Loading file", __filepath);
-print("From directory", __dirpath);
+print("Loading file", __filename);
+print("From directory", __dirname);
 
 // addText supports "Primary" and "Secondary" font sizes.
 widget.addText(10, 10, "Primary", "Example JS widget");
 widget.addText(10, 20, "Secondary", "Example widget from JS!");
 
 // load a Xbm file from the same directory as this script.
-widget.addText(0, 30, "Secondary", __filepath);
-let logo = widget.loadImageXbm(__dirpath + "/widget-js.fxbm");
+widget.addText(0, 30, "Secondary", __filename);
+let logo = widget.loadImageXbm(__dirname + "/widget-js.fxbm");
 
 // add a line (x1, y1, x2, y2)
 widget.addLine(10, 35, 120, 35);