Add ability to close all tabs except current tab

app/src/main/java/acr/browser/lightning/activity/BrowserActivity.java

@@ -834,19 +834,23 @@ public abstract class BrowserActivity extends ThemableBrowserActivity implements
         }
         AlertDialog.Builder builder = new AlertDialog.Builder(this);
         ArrayAdapter<String> adapter = new ArrayAdapter<>(this,
-                android.R.layout.simple_dropdown_item_1line);
-        adapter.add(this.getString(R.string.close_tab));
+                android.R.layout.simple_list_item_1);
         adapter.add(this.getString(R.string.close_all_tabs));
+        adapter.add(this.getString(R.string.close_other_tabs));
+        adapter.add(this.getString(R.string.close_tab));
         builder.setAdapter(adapter, new DialogInterface.OnClickListener() {
 
             @Override
             public void onClick(DialogInterface dialog, int which) {
                 switch (which) {
                     case 0:
-                        deleteTab(position);
+                        closeBrowser();
                         break;
                     case 1:
-                        closeBrowser();
+                        mPresenter.closeAllOtherTabs();
+                        break;
+                    case 2:
+                        deleteTab(position);
                         break;
                     default:
                         break;

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

@@ -77,6 +77,18 @@ public class BrowserPresenter {
         mCurrentTab = newTab;
     }
 
+    public void closeAllOtherTabs() {
+
+        while (mTabsModel.last() != mTabsModel.indexOfCurrentTab()) {
+            deleteTab(mTabsModel.last());
+        }
+
+        while (0 != mTabsModel.indexOfCurrentTab()) {
+            deleteTab(0);
+        }
+
+    }
+
     public void deleteTab(int position) {
         final LightningView tabToDelete = mTabsModel.getTabAtPosition(position);
 

app/src/main/res/values/strings.xml

@@ -193,6 +193,7 @@
     <string name="settings_about_explain">Details about version, author and license.</string>
     <string name="close_tab">Close tab</string>
     <string name="close_all_tabs">Close all tabs</string>
+    <string name="close_other_tabs">Close other tabs</string>
     <string name="third_party">Block 3rd Party Cookies</string>
     <string name="color_mode">Enable Color Mode</string>
     <string name="reading_mode">Reader Mode</string>