Improved sharing

app/src/main/java/eu/faircode/email/AdapterMessage.java

@@ -315,8 +315,6 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
 
     private static final int MAX_RECIPIENTS_COMPACT = 3;
     private static final int MAX_RECIPIENTS_NORMAL = 7;
-    private static final int MAX_QUOTE_LEVEL = 3;
-    private static final int MAX_TRANSLATABLE_TEXT_SIZE = 50 * 1024;
 
     public class ViewHolder extends RecyclerView.ViewHolder implements
             View.OnClickListener,
@@ -5249,7 +5247,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
                     String link = "message://email.faircode.eu/link/#" + message.id;
 
                     Document document = JsoupEx.parse(file);
-                    HtmlHelper.truncate(document, HtmlHelper.MAX_FULL_TEXT_SIZE / 2);
+                    HtmlHelper.truncate(document, HtmlHelper.MAX_SHARE_TEXT_SIZE);
 
                     Element a = document.createElement("a");
                     a.text(context.getString(R.string.app_name));
@@ -5442,9 +5440,9 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
             Bundle args = new Bundle();
             args.putLong("id", message.id);
 
-            new SimpleTask<String>() {
+            new SimpleTask<File>() {
                 @Override
-                protected String onExecute(Context context, Bundle args) throws IOException {
+                protected File onExecute(Context context, Bundle args) throws IOException {
                     Long id = args.getLong("id");
 
                     File file = EntityMessage.getFile(context, id);
@@ -5462,15 +5460,19 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
                             element.attr("computed", computed);
                     }
 
-                    return d.html();
+                    File dir = new File(context.getCacheDir(), "shared");
+                    if (!dir.exists())
+                        dir.mkdir();
+
+                    File share = new File(dir, message.id + ".txt");
+                    Helper.writeText(share, d.html());
+
+                    return share;
                 }
 
                 @Override
-                protected void onExecuted(Bundle args, String html) {
-                    Intent intent = new Intent(Intent.ACTION_SEND);
-                    intent.setType("text/plain");
-                    intent.putExtra(Intent.EXTRA_TEXT, html);
-                    context.startActivity(intent);
+                protected void onExecuted(Bundle args, File share) {
+                    Helper.share(context, share, "text/plain", share.getName());
                 }
 
                 @Override
@@ -7017,7 +7019,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
                     String html = Helper.readText(file);
                     Document d = HtmlHelper.sanitizeCompose(context, html, false);
                     d.select("blockquote").remove();
-                    HtmlHelper.truncate(d, MAX_TRANSLATABLE_TEXT_SIZE);
+                    HtmlHelper.truncate(d, HtmlHelper.MAX_TRANSLATABLE_TEXT_SIZE);
                     SpannableStringBuilder ssb = HtmlHelper.fromDocument(context, d, null, null);
                     return ssb.toString()
                             .replace("\uFFFC", "") // Object replacement character

app/src/main/java/eu/faircode/email/HtmlHelper.java

@@ -131,6 +131,10 @@ public class HtmlHelper {
     static final float FONT_SMALL = 0.8f;
     static final float FONT_LARGE = 1.25f;
 
+    static final int MAX_FULL_TEXT_SIZE = 1024 * 1024; // characters
+    static final int MAX_SHARE_TEXT_SIZE = 50 * 1024; // characters
+    static final int MAX_TRANSLATABLE_TEXT_SIZE = 50 * 1024; // characters
+
     private static final int DEFAULT_FONT_SIZE = 16; // pixels
     private static final int DEFAULT_FONT_SIZE_PT = 12; // points
     private static final int GRAY_THRESHOLD = Math.round(255 * 0.2f);
@@ -140,7 +144,6 @@ public class HtmlHelper {
     private static final int MAX_ALT = 250;
     private static final int MAX_AUTO_LINK = 250;
     private static final int MAX_FORMAT_TEXT_SIZE = 200 * 1024; // characters
-    static final int MAX_FULL_TEXT_SIZE = 1024 * 1024; // characters
     private static final int SMALL_IMAGE_SIZE = 5; // pixels
     private static final int TRACKING_PIXEL_SURFACE = 25; // pixels
     private static final float[] HEADING_SIZES = {1.5f, 1.4f, 1.3f, 1.2f, 1.1f, 1f};