feat: add PDF representations

Author: hansemannn

Classes/TiScannerModule.h

@@ -14,4 +14,14 @@
   VNDocumentCameraScan *_currentScan;
 }
 
+- (NSNumber *)isSupported:(id)unused;
+
+- (void)showScanner:(id)value;
+
+- (TiBlob *)imageOfPageAtIndex:(id)index;
+
+- (TiBlob *)pdfOfPageAtIndex:(id)index;
+
+- (TiBlob *)pdfOfAllPages:(id)unused;
+
 @end

Classes/TiScannerModule.m

@@ -5,6 +5,7 @@
  * Copyright (c) 2019 Your Company. All rights reserved.
  */
 
+#import <PDFKit/PDFKit.h>
 #import <TitaniumKit/TitaniumKit.h>
 #import "TiScannerModule.h"
 #import "TiBase.h"
@@ -51,6 +52,40 @@ - (TiBlob *)imageOfPageAtIndex:(id)index
   return blob;
 }
 
+- (TiBlob *)pdfOfPageAtIndex:(id)index
+{
+  ENSURE_SINGLE_ARG(index, NSNumber);
+
+  if (_currentScan == nil) {
+    return nil;
+  }
+
+  UIImage *image = [_currentScan imageOfPageAtIndex:[(NSNumber *)index integerValue]];
+
+  PDFDocument *pdfDocument = [PDFDocument new];
+  PDFPage *pdfPage = [[PDFPage alloc] initWithImage:image];
+  [pdfDocument insertPage:pdfPage atIndex:0];
+
+  return [[TiBlob alloc] initWithData:[pdfDocument dataRepresentation] mimetype:@"application/pdf"];
+}
+
+- (TiBlob *)pdfOfAllPages:(id)unused
+{
+  if (_currentScan == nil) {
+    return nil;
+  }
+
+  PDFDocument *pdfDocument = [PDFDocument new];
+
+  for (NSUInteger index = 0; index < _currentScan.pageCount; index++) {
+    UIImage *image = [_currentScan imageOfPageAtIndex:index];
+    PDFPage *pdfPage = [[PDFPage alloc] initWithImage:image];
+    [pdfDocument insertPage:pdfPage atIndex:index];
+  }
+
+  return [[TiBlob alloc] initWithData:[pdfDocument dataRepresentation] mimetype:@"application/pdf"];
+}
+
 #pragma mark Utils
 
 - (VNDocumentCameraViewController *)scannerViewController

README.md

@@ -8,23 +8,39 @@ document.
 
 ## Requirements
 
-- [x] Titanium SDK 8.2.0+
 - [x] iOS 13+
+- [x] Titanium SDK 8.2.0+
+- [x] Granted camera permissions
+
+## APIs
+
+### Methods
+
+- [x] `showScanner`
+- [x] `imageOfPageAtIndex(index)` (after the `success` event)
+- [x] `pdfOfPageAtIndex(index)` (after the `success` event)
+- [x] `pdfOfAllPages()` (after the `success` event)
+
+### Events
+
+- [x] `success`
+- [x] `error`
+- [x] `cancel`
 
 ## Example
 
 ```js
-var Scanner = require('ti.scanner');
+import Scanner from 'ti.scanner';
 
-var win = Ti.UI.createWindow({
+const win = Ti.UI.createWindow({
     backgroundColor: '#fff'
 });
 
-var btn = Ti.UI.createButton({
+const btn = Ti.UI.createButton({
     title: 'Scan Document'
 });
 
-btn.addEventListener('click', function () {
+btn.addEventListener('click', () => {
     Ti.Media.requestCameraPermissions(event => {
         if (!event.success) {
             alert('No camera permissions');
@@ -34,26 +50,26 @@ btn.addEventListener('click', function () {
     });
 });
 
-Scanner.addEventListener('cancel', function () {
+Scanner.addEventListener('cancel', () => {
     Ti.API.warn('Cancelled …');
 });
 
-Scanner.addEventListener('error', function (event) {
+Scanner.addEventListener('error', event => {
     Ti.API.error('Errored …');
     Ti.API.error(event.error);
 });
 
-Scanner.addEventListener('success', function (event) {
+Scanner.addEventListener('success', event => {
     Ti.API.warn('Succeeded …');
     Ti.API.warn(event);
 
-    var win2 = Ti.UI.createWindow({
-          backgroundColor: '#333'
+    const win2 = Ti.UI.createWindow({
+        backgroundColor: '#333'
     });
 
-    var image = Ti.UI.createImageView({
-          height: '70%',
-          image: Scanner.imageOfPageAtIndex(0) /* Or many images via "event.count" */
+    const image = Ti.UI.createImageView({
+        height: '70%',
+        image: Scanner.imageOfPageAtIndex(0) /* Or pdfOfPageAtIndex(0) if you need the PDF of it, or many images via "event.count" */
     });
 
     win2.add(image);

manifest

@@ -2,13 +2,13 @@
 # this is your module manifest and used by Titanium
 # during compilation, packaging, distribution, etc.
 #
-version: 2.0.0
+version: 2.1.0
 apiversion: 2
 architectures: arm64 x86_64
 description: titanium-scanner
 author: Hans Knöchel
 license: MIT
-copyright: Copyright (c) 2019 by Hans Knöchel
+copyright: Copyright (c) 2019-present by Hans Knöchel
 
 # these should not be edited
 name: titanium-scanner

module.xcconfig

@@ -12,4 +12,4 @@
 // Note: Titanium SDK 6.2.2+ detects and links frameworks automatically
 //
 
-OTHER_LDFLAGS=$(inherited) -weak_framework Vision -weak_framework VisionKit
+OTHER_LDFLAGS=$(inherited) -weak_framework Vision -weak_framework VisionKit -weak_framework PDFKit

titanium-scanner.xcodeproj/project.pbxproj

@@ -149,7 +149,7 @@
 		0867D690FE84028FC02AAC07 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 1240;
+				LastUpgradeCheck = 1250;
 			};
 			buildConfigurationList = 1DEB922208733DC00010E9CD /* Build configuration list for PBXProject "titanium-scanner" */;
 			compatibilityVersion = "Xcode 9.3";