For #22: implement share action

Base implementation. Contact and other specific implementations yet to be added.

app/src/main/java/com/czlucius/scan/objects/Type.java

@@ -34,6 +34,7 @@
 import com.czlucius.scan.objects.actions.EmailAction;
 import com.czlucius.scan.objects.actions.CallPhoneAction;
 import com.czlucius.scan.objects.actions.SMSAction;
+import com.czlucius.scan.objects.actions.ShareAction;
 import com.czlucius.scan.objects.actions.URLAction;
 import com.czlucius.scan.objects.actions.ViewLocationAction;
 import com.czlucius.scan.objects.data.Contact;
@@ -62,6 +63,7 @@ public class Type {
 
     private Type(List<Action> actions, String typeName, int typeInt) {
         actions.add(0, CopyAction.getInstance());
+        actions.add(1, ShareAction.getInstance());
         this.actions = actions;
         this.typeName = typeName;
         this.typeInt = typeInt;

app/src/main/java/com/czlucius/scan/objects/actions/ShareAction.java

@@ -0,0 +1,47 @@
+/*
+ * Code Scanner. An android app to scan and create codes(barcodes, QR codes, etc)
+ * Copyright (C) 2021 Lucius Chee Zihan
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.czlucius.scan.objects.actions;
+
+import android.content.Context;
+import android.content.Intent;
+
+import androidx.annotation.Nullable;
+
+import com.czlucius.scan.App;
+import com.czlucius.scan.R;
+import com.czlucius.scan.objects.data.Data;
+
+public class ShareAction extends Action {
+    private static Action INSTANCE;
+    private ShareAction() {
+        super(App.getStringGlobal(R.string.share, "Share"), R.drawable.ic_round_share_24);
+    }
+    public static Action getInstance() {
+        if (INSTANCE == null) {
+            INSTANCE = new ShareAction();
+        }
+        return INSTANCE;
+    }
+
+    @Override
+    public void performAction(Context context, Data data) {
+        Intent intent = data.constructShareIntent();
+        context.startActivity(intent);
+    }
+}

app/src/main/java/com/czlucius/scan/objects/data/Contact.java

@@ -19,6 +19,8 @@
 package com.czlucius.scan.objects.data;
 
 
+import android.content.Intent;
+
 import androidx.annotation.NonNull;
 
 import com.czlucius.scan.App;
@@ -198,5 +200,15 @@ public boolean isEmpty() {
                 && urls.length == 0;
     }
 
+    @Override
+    public Intent constructShareIntent() {
+        // TODO ----------------------------------------------------------
+        // The standard way to share this is just by sharing the VCF(VCard contact) file
+        // A lot of contact apps (Google Contacts, Samsung Contacts, Simple Contacts from F-Droid do this
+        // Just create the VCard from the data, then write it to a file (.vcf), then share it like how you share the QR code image
+
+        return super.constructShareIntent();
+    }
+
 
 }

app/src/main/java/com/czlucius/scan/objects/data/Data.java

@@ -18,6 +18,8 @@
 
 package com.czlucius.scan.objects.data;
 
+import android.content.Intent;
+
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
@@ -31,6 +33,16 @@ public abstract class Data {
 
     public abstract boolean isEmpty();
 
+    public Intent constructShareIntent()
+    {
+        Intent sendIntent = new Intent();
+        sendIntent.setAction(Intent.ACTION_SEND);
+        sendIntent.putExtra(Intent.EXTRA_TEXT, getStringRepresentation());
+        sendIntent.setType("text/plain");
+
+        return sendIntent;
+    }
+
 
     public String getSummary() {
         return getStringRepresentation();

app/src/main/res/drawable/ic_round_share_24.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M18,16.08c-0.76,0 -1.44,0.3 -1.96,0.77L8.91,12.7c0.05,-0.23 0.09,-0.46 0.09,-0.7s-0.04,-0.47 -0.09,-0.7l7.05,-4.11c0.54,0.5 1.25,0.81 2.04,0.81 1.66,0 3,-1.34 3,-3s-1.34,-3 -3,-3 -3,1.34 -3,3c0,0.24 0.04,0.47 0.09,0.7L8.04,9.81C7.5,9.31 6.79,9 6,9c-1.66,0 -3,1.34 -3,3s1.34,3 3,3c0.79,0 1.5,-0.31 2.04,-0.81l7.12,4.16c-0.05,0.21 -0.08,0.43 -0.08,0.65 0,1.61 1.31,2.92 2.92,2.92s2.92,-1.31 2.92,-2.92 -1.31,-2.92 -2.92,-2.92z"/>
+</vector>