Fixing bug where last tab would be destroyed on exit in certain cases

app/src/main/java/acr/browser/lightning/browser/BrowserPresenter.java

@@ -1,6 +1,7 @@
 package acr.browser.lightning.browser;
 
 import android.app.Activity;
+import android.app.Application;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.support.annotation.NonNull;
@@ -17,7 +18,9 @@ import acr.browser.lightning.BuildConfig;
 import acr.browser.lightning.R;
 import acr.browser.lightning.activity.TabsManager;
 import acr.browser.lightning.app.BrowserApp;
+import acr.browser.lightning.constant.BookmarkPage;
 import acr.browser.lightning.constant.Constants;
+import acr.browser.lightning.constant.StartPage;
 import acr.browser.lightning.controller.UIController;
 import acr.browser.lightning.preference.PreferenceManager;
 
@@ -34,6 +37,7 @@ public class BrowserPresenter {
     private static final String TAG = "BrowserPresenter";
 
     @NonNull private final TabsManager mTabsModel;
+    @Inject Application mApplication;
     @Inject PreferenceManager mPreferences;
 
     @NonNull private final BrowserView mView;
@@ -144,6 +148,19 @@ public class BrowserPresenter {
 
     }
 
+    @NonNull
+    private String mapHomepageToCurrentUrl() {
+        String homepage = mPreferences.getHomepage();
+        switch (homepage) {
+            case Constants.SCHEME_HOMEPAGE:
+                return Constants.FILE + StartPage.getStartPageFile(mApplication);
+            case Constants.SCHEME_BOOKMARKS:
+                return Constants.FILE + BookmarkPage.getBookmarkPage(mApplication, null);
+            default:
+                return homepage;
+        }
+    }
+
     /**
      * Deletes the tab at the specified position.
      *
@@ -166,8 +183,8 @@ public class BrowserPresenter {
         boolean shouldClose = mShouldClose && isShown && tabToDelete.isNewTab();
         final LightningView currentTab = mTabsModel.getCurrentTab();
         if (mTabsModel.size() == 1 && currentTab != null &&
-            (UrlUtils.isStartPageUrl(currentTab.getUrl()) ||
+            URLUtil.isFileUrl(currentTab.getUrl()) &&
-                currentTab.getUrl().equals(mPreferences.getHomepage()))) {
+            currentTab.getUrl().equals(mapHomepageToCurrentUrl())) {
             mView.closeActivity();
             return;
         } else {

app/src/main/java/acr/browser/lightning/constant/BookmarkPage.java

@@ -81,7 +81,7 @@ public final class BookmarkPage {
     private static final String DEFAULT_ICON = "default.png";
 
     @NonNull
-    private static File getBookmarkPage(@NonNull Application application, @Nullable String folder) {
+    public static File getBookmarkPage(@NonNull Application application, @Nullable String folder) {
         String prefix = !TextUtils.isEmpty(folder) ? folder + '-' : "";
         return new File(application.getFilesDir(), prefix + FILENAME);
     }

app/src/main/java/acr/browser/lightning/constant/StartPage.java

@@ -55,7 +55,7 @@ public class StartPage {
     private static final String END = "\" + document.getElementById(\"search_input\").value;document.getElementById(\"search_input\").value = \"\";}return false;}</script></body></html>";
 
     @NonNull
-    private static File getStartPageFile(@NonNull Application application) {
+    public static File getStartPageFile(@NonNull Application application) {
         return new File(application.getFilesDir(), FILENAME);
     }