From c1c4740095fa68eb6ad67ca20249a49a170d18f9 Mon Sep 17 00:00:00 2001
From: Quinn Casey <qcasey1@gmail.com>
Date: Tue, 15 Dec 2020 09:24:48 -0800
Subject: [PATCH] Android Share Sheet intent (#26)

* initial share sheet addition

* add scanAmount to card

* use unique shareAmount to bypass scan listener

* commit new lock as per dart docs

* revert .plural

* use pubspec.lock from 0.0.7 release
---
 android/app/src/main/AndroidManifest.xml | 20 ++++++++++
 lib/routes/documents_route.dart          | 50 +++++++++++++++++++++++-
 pubspec.yaml                             |  1 +
 3 files changed, 69 insertions(+), 2 deletions(-)

diff --git a/android/app/src/main/AndroidManifest.xml b/android/app/src/main/AndroidManifest.xml
index ad0b8ae..33bf1ec 100644
--- a/android/app/src/main/AndroidManifest.xml
+++ b/android/app/src/main/AndroidManifest.xml
@@ -26,6 +26,26 @@
                 <action android:name="android.intent.action.MAIN"/>
                 <category android:name="android.intent.category.LAUNCHER"/>
             </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.SEND" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="application/pdf" />
+            </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.SEND_MULTIPLE" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="application/pdf" />
+            </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.SEND" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="image/*" />
+            </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.SEND_MULTIPLE" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="image/*" />
+            </intent-filter>
         </activity>
         <!-- Don't delete the meta-data below.
              This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
diff --git a/lib/routes/documents_route.dart b/lib/routes/documents_route.dart
index 965fc0b..97b685b 100644
--- a/lib/routes/documents_route.dart
+++ b/lib/routes/documents_route.dart
@@ -9,6 +9,8 @@ import 'package:shared_preferences/shared_preferences.dart';
 import 'package:cached_network_image/cached_network_image.dart';
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
 import 'package:get_it/get_it.dart';
+import 'package:receive_sharing_intent/receive_sharing_intent.dart';
+import 'dart:async';
 
 import 'package:paperless_app/routes/server_details_route.dart';
 import 'package:paperless_app/routes/settings_route.dart';
@@ -40,7 +42,10 @@ class _DocumentsRouteState extends State<DocumentsRoute> {
   String searchString;
   bool invertDocumentPreview = true;
   int scanAmount = 0;
+  int shareAmount = 0;
   ScanHandler scanHandler = ScanHandler();
+  StreamSubscription intentDataStreamSubscription;
+  List<SharedMediaFile> sharedFiles;
 
   final List<double> invertMatrix = [
     -1, 0, 0, 0, 255, //
@@ -288,7 +293,7 @@ class _DocumentsRouteState extends State<DocumentsRoute> {
             preferredSize: Size.fromHeight(5),
           ),
           Padding(
-            child: scanAmount > 0
+            child: scanAmount > 0 || shareAmount > 0
                 ? Card(
                     child: Row(
                       mainAxisAlignment: MainAxisAlignment.center,
@@ -298,7 +303,8 @@ class _DocumentsRouteState extends State<DocumentsRoute> {
                         SizedBox(width: 10),
                         Flexible(
                             child: Text(
-                          "Uploading 1 scanned document".plural(scanAmount),
+                          "Uploading 1 scanned document"
+                              .plural(scanAmount + shareAmount),
                           textAlign: TextAlign.center,
                         )),
                         SizedBox(width: 10),
@@ -351,6 +357,44 @@ class _DocumentsRouteState extends State<DocumentsRoute> {
     });
   }
 
+  void uploadSharedDocuments() async {
+    if (sharedFiles != null && sharedFiles.isNotEmpty) {
+      for (var f in sharedFiles) {
+        await API.instance.uploadFile(f.path);
+        setState(() {
+          shareAmount--;
+        });
+      }
+    }
+  }
+
+  void loadShareSheet() {
+    // For sharing images coming from outside the app while the app is in the memory
+    intentDataStreamSubscription = ReceiveSharingIntent.getMediaStream().listen(
+        (List<SharedMediaFile> value) {
+      setState(() {
+        sharedFiles = value;
+        if (sharedFiles != null) {
+          shareAmount += sharedFiles.length;
+        }
+      });
+      uploadSharedDocuments();
+    }, onError: (err) {
+      print("getIntentDataStream error: $err");
+    });
+
+    // For sharing images coming from outside the app while the app is closed
+    ReceiveSharingIntent.getInitialMedia().then((List<SharedMediaFile> value) {
+      setState(() {
+        sharedFiles = value;
+        if (sharedFiles != null) {
+          shareAmount += sharedFiles.length;
+        }
+      });
+      uploadSharedDocuments();
+    });
+  }
+
   @override
   void initState() {
     reloadDocuments();
@@ -361,12 +405,14 @@ class _DocumentsRouteState extends State<DocumentsRoute> {
     dateFormat = new DateFormat.yMMMMd();
     scrollController = new ScrollController()..addListener(_scrollListener);
     scanHandler.attachListener(onScanAmountChange);
+    loadShareSheet();
     super.initState();
   }
 
   @override
   void dispose() {
     scrollController.removeListener(_scrollListener);
+    intentDataStreamSubscription.cancel();
     super.dispose();
   }
 
diff --git a/pubspec.yaml b/pubspec.yaml
index c5a18c9..d367d59 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -33,6 +33,7 @@ dependencies:
   open_file: ^3.0.1
   settings_ui: ^0.2.0
   shared_preferences: '>=0.5.7+2 <2.0.0'
+  receive_sharing_intent: ^1.4.2
   sprintf: "^4.0.0"
   edge_detection:
     git: