From cc0c376e3f9f12bc657a92165bf486e97de2d5bd Mon Sep 17 00:00:00 2001
From: Harshad Srinivasan <harshad1@zoho.com>
Date: Sun, 21 Mar 2021 21:16:26 -0700
Subject: [PATCH 1/4] Back with empty file is ok

---
 .../net/gsantner/markor/activity/DocumentEditFragment.java  | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/app/src/main/java/net/gsantner/markor/activity/DocumentEditFragment.java b/app/src/main/java/net/gsantner/markor/activity/DocumentEditFragment.java
index a342619693..c83af6d48f 100644
--- a/app/src/main/java/net/gsantner/markor/activity/DocumentEditFragment.java
+++ b/app/src/main/java/net/gsantner/markor/activity/DocumentEditFragment.java
@@ -421,8 +421,10 @@ public boolean onOptionsItemSelected(final MenuItem item) {
                 return true;
             }
             case android.R.id.home: {
-                if (saveDocument() && getActivity() != null) {
-                    getActivity().onBackPressed();
+                saveDocument();
+                final Activity activity = getActivity();
+                if (activity != null) {
+                    activity.onBackPressed();
                 }
                 return true;
             }

From ddbb838085a5c11478f9ce9f5d924f78f17477a3 Mon Sep 17 00:00:00 2001
From: Harshad Srinivasan <harshad1@zoho.com>
Date: Tue, 23 Mar 2021 09:58:10 -0700
Subject: [PATCH 2/4] Added explicit length test

---
 .../net/gsantner/markor/activity/DocumentEditFragment.java     | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/app/src/main/java/net/gsantner/markor/activity/DocumentEditFragment.java b/app/src/main/java/net/gsantner/markor/activity/DocumentEditFragment.java
index c83af6d48f..14bffb77b1 100644
--- a/app/src/main/java/net/gsantner/markor/activity/DocumentEditFragment.java
+++ b/app/src/main/java/net/gsantner/markor/activity/DocumentEditFragment.java
@@ -421,9 +421,8 @@ public boolean onOptionsItemSelected(final MenuItem item) {
                 return true;
             }
             case android.R.id.home: {
-                saveDocument();
                 final Activity activity = getActivity();
-                if (activity != null) {
+                if ((saveDocument() || _hlEditor.length() == 0) && activity != null) {
                     activity.onBackPressed();
                 }
                 return true;

From 1f662abaa737f6b11b659b96f399bae47ac0ab7a Mon Sep 17 00:00:00 2001
From: Harshad Srinivasan <harshad1@zoho.com>
Date: Tue, 23 Mar 2021 10:08:29 -0700
Subject: [PATCH 3/4] Added trim

---
 .../java/net/gsantner/markor/activity/DocumentEditFragment.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/src/main/java/net/gsantner/markor/activity/DocumentEditFragment.java b/app/src/main/java/net/gsantner/markor/activity/DocumentEditFragment.java
index 14bffb77b1..0f47a46ee4 100644
--- a/app/src/main/java/net/gsantner/markor/activity/DocumentEditFragment.java
+++ b/app/src/main/java/net/gsantner/markor/activity/DocumentEditFragment.java
@@ -422,7 +422,7 @@ public boolean onOptionsItemSelected(final MenuItem item) {
             }
             case android.R.id.home: {
                 final Activity activity = getActivity();
-                if ((saveDocument() || _hlEditor.length() == 0) && activity != null) {
+                if ((saveDocument() || _hlEditor.toString().trim().length() == 0) && activity != null) {
                     activity.onBackPressed();
                 }
                 return true;

From ef88960e46025280d39d72107d84f2d4e5555a56 Mon Sep 17 00:00:00 2001
From: Gregor Santner <gsantner@mailbox.org>
Date: Wed, 24 Mar 2021 00:39:11 +0100
Subject: [PATCH 4/4] Optimization for big texts

---
 .../net/gsantner/markor/activity/DocumentEditFragment.java    | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/app/src/main/java/net/gsantner/markor/activity/DocumentEditFragment.java b/app/src/main/java/net/gsantner/markor/activity/DocumentEditFragment.java
index 0f47a46ee4..3f01bb06ba 100644
--- a/app/src/main/java/net/gsantner/markor/activity/DocumentEditFragment.java
+++ b/app/src/main/java/net/gsantner/markor/activity/DocumentEditFragment.java
@@ -14,7 +14,6 @@
 import android.appwidget.AppWidgetManager;
 import android.content.ComponentName;
 import android.content.Context;
-import android.graphics.Bitmap;
 import android.graphics.Color;
 import android.graphics.Typeface;
 import android.graphics.drawable.Drawable;
@@ -24,6 +23,7 @@
 import android.support.v4.content.ContextCompat;
 import android.support.v7.app.AppCompatActivity;
 import android.support.v7.widget.Toolbar;
+import android.text.TextUtils;
 import android.util.TypedValue;
 import android.view.Gravity;
 import android.view.Menu;
@@ -422,7 +422,7 @@ public boolean onOptionsItemSelected(final MenuItem item) {
             }
             case android.R.id.home: {
                 final Activity activity = getActivity();
-                if ((saveDocument() || _hlEditor.toString().trim().length() == 0) && activity != null) {
+                if ((saveDocument() || (_hlEditor.length() < 10 && TextUtils.getTrimmedLength(_hlEditor.getEditableText()) == 0)) && activity != null) {
                     activity.onBackPressed();
                 }
                 return true;