IDEA-56406 Option: Open new editor tabs at the end (bottom end for multiple tabs).

platform/platform-impl/src/com/intellij/ide/actions/TabsAddedToTheEndSwitcher.java

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2000-2014 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.intellij.ide.actions;
+
+import com.intellij.openapi.actionSystem.RegistryToggleAction;
+
+/**
+ * @author Konstantin Bulenkov
+ */
+public class TabsAddedToTheEndSwitcher extends RegistryToggleAction {
+  public TabsAddedToTheEndSwitcher() {
+    super("ide.editor.tabs.open.at.the.end", "Open New Tabs At The End");
+  }
+}

platform/platform-impl/src/com/intellij/openapi/fileEditor/impl/EditorWindow.java

@@ -36,6 +36,7 @@ import com.intellij.openapi.project.Project;
 import com.intellij.openapi.ui.Splitter;
 import com.intellij.openapi.ui.ThreeComponentsSplitter;
 import com.intellij.openapi.util.*;
+import com.intellij.openapi.util.registry.Registry;
 import com.intellij.openapi.vfs.VirtualFile;
 import com.intellij.openapi.vfs.VirtualFileManager;
 import com.intellij.openapi.wm.IdeFocusManager;
@@ -719,13 +720,17 @@ public class EditorWindow {
       else {
         Integer initialIndex = editor.getFile().getUserData(INITIAL_INDEX_KEY);
         int indexToInsert = 0;
-        if (initialIndex == null) {
-          int selectedIndex = myTabbedPane.getSelectedIndex();
-          if (selectedIndex >= 0) {
-            indexToInsert = selectedIndex + 1;
-          }
+        if (Registry.is("ide.editor.tabs.open.at.the.end")) {
+          indexToInsert = myTabbedPane.getTabCount();
         } else {
-          indexToInsert = initialIndex;
+          if (initialIndex == null) {
+            int selectedIndex = myTabbedPane.getSelectedIndex();
+            if (selectedIndex >= 0) {
+              indexToInsert = selectedIndex + 1;
+            }
+          } else {
+            indexToInsert = initialIndex;
+          }
         }
 
         final VirtualFile file = editor.getFile();

platform/platform-resources/src/idea/PlatformActions.xml

@@ -397,7 +397,8 @@
             <action id="TabsPlacementRight"  text="Right"  class="com.intellij.ide.actions.TabsPlacementAction$Right" />
             <action id="TabsPlacementNone"   text="None"   class="com.intellij.ide.actions.TabsPlacementAction$None" />
           </group>
-          <action id="TabsAlphabeticalMode" class="com.intellij.ide.actions.TabsAlphabeticalModeSwitcher" text="Sort Tabs by Filename"/>
+          <action id="TabsAlphabeticalMode" class="com.intellij.ide.actions.TabsAlphabeticalModeSwitcher" text="Sort Tabs By Filename"/>
+          <action id="AddNewTabToTheEndMode" class="com.intellij.ide.actions.TabsAddedToTheEndSwitcher"/>
         </group>
 
         <group id="BackgroundTasks" popup="true">
@@ -497,6 +498,7 @@
       <reference ref="PinActiveTab"/>
       <reference ref="TabsPlacementGroup"/>
       <reference ref="TabsAlphabeticalMode"/>
+      <reference ref="AddNewTabToTheEndMode"/>
       <separator/>
       <reference ref="NextTab"/>
       <reference ref="PreviousTab"/>

platform/util/resources/misc/registry.properties

@@ -66,6 +66,9 @@ ide.checkDuplicateMnemonics.description=Check for duplicate mnemonics.
 ide.dnd.textHints=false
 ide.max.recent.projects=25
 
+ide.editor.tabs.open.at.the.end=false
+ide.editor.tabs.open.at.the.end.description=If true all new tabs will be opened at the end
+
 ide.hide.excluded.files=false
 ide.hide.excluded.files.restartRequired=true
 ide.hide.excluded.files.description=Do not show excluded files in Project View and exclude them from VCS