IDEA-89035 File Tab Alphabetical

platform/platform-api/src/com/intellij/ui/tabs/impl/JBEditorTabs.java

@@ -19,6 +19,7 @@ import com.intellij.openapi.Disposable;
 import com.intellij.openapi.actionSystem.ActionManager;
 import com.intellij.openapi.application.ApplicationManager;
 import com.intellij.openapi.project.Project;
+import com.intellij.openapi.util.registry.Registry;
 import com.intellij.openapi.wm.IdeFocusManager;
 import com.intellij.ui.ColorUtil;
 import com.intellij.ui.tabs.JBTabsPosition;
@@ -39,6 +40,7 @@ import java.util.List;
  * @author pegov
  */
 public class JBEditorTabs extends JBTabsImpl {
+  private static final String TABS_ALPHABETICAL_KEY = "tabs.alphabetical";
 
   public JBEditorTabs(@Nullable Project project, ActionManager actionManager, IdeFocusManager focusManager, @NotNull Disposable parent) {
     super(project, actionManager, focusManager, parent);
@@ -113,7 +115,15 @@ public class JBEditorTabs extends JBTabsImpl {
     g2d.setColor(new Color(255, 255, 255, 100));
     g2d.drawRect(_x, _y, _width - 1, _height - 1);
   }
-  
+
+  public static boolean isAlphabeticalMode() {
+    return Registry.is(TABS_ALPHABETICAL_KEY);
+  }
+
+  public static void setAlphabeticalMode(boolean on) {
+    Registry.get(TABS_ALPHABETICAL_KEY).setValue(on);
+  }
+
   private static Color multiplyColor(Color c) {
     return new Color(c.getRed() * c.getRed() / 255, c.getGreen() * c.getGreen() / 255, c.getBlue() * c.getBlue() / 255);
   }

platform/platform-api/src/com/intellij/ui/tabs/impl/singleRow/SingleRowLayout.java

@@ -15,6 +15,7 @@
  */
 package com.intellij.ui.tabs.impl.singleRow;
 
+import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.ui.tabs.JBTabsPosition;
 import com.intellij.ui.tabs.TabInfo;
 import com.intellij.ui.tabs.TabsUtil;
@@ -25,6 +26,8 @@ import javax.swing.*;
 import java.awt.*;
 import java.awt.event.MouseAdapter;
 import java.awt.event.MouseEvent;
+import java.util.Collections;
+import java.util.Comparator;
 import java.util.List;
 
 public class SingleRowLayout extends TabLayout {
@@ -140,6 +143,15 @@ public class SingleRowLayout extends TabLayout {
   }
 
   public LayoutPassInfo layoutSingleRow(List<TabInfo> visibleInfos)  {
+    if (JBEditorTabs.isAlphabeticalMode()) {
+      Collections.sort(visibleInfos, new Comparator<TabInfo>() {
+        @Override
+        public int compare(TabInfo o1, TabInfo o2) {
+          return StringUtil.naturalCompare(o1.getText(), o2.getText());
+        }
+      });
+    }
+
     SingleRowPassInfo data = new SingleRowPassInfo(this, visibleInfos);
 
     final boolean layoutLabels = checkLayoutLabels(data);
@@ -147,13 +159,11 @@ public class SingleRowLayout extends TabLayout {
       data = myLastSingRowLayout;
     }
 
-
     final TabInfo selected = myTabs.getSelectedInfo();
     prepareLayoutPassInfo(data, selected);
 
     myTabs.resetLayout(layoutLabels || myTabs.isHideTabs());
 
-
     if (layoutLabels && !myTabs.isHideTabs()) {
       data.position = getStrategy().getStartPosition(data) - getScrollOffset();
 

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

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2000-2012 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.ide.ui.UISettings;
+import com.intellij.openapi.actionSystem.AnActionEvent;
+import com.intellij.openapi.actionSystem.ToggleAction;
+import com.intellij.ui.tabs.impl.JBEditorTabs;
+
+import javax.swing.*;
+
+/**
+ * @author Konstantin Bulenkov
+ */
+public class TabsAlphabeticalModeSwitcher extends ToggleAction {
+  @Override
+  public boolean isSelected(AnActionEvent e) {
+    return JBEditorTabs.isAlphabeticalMode();
+  }
+
+  @Override
+  public void setSelected(AnActionEvent e, boolean state) {
+    JBEditorTabs.setAlphabeticalMode(state);
+  }
+
+  @Override
+  public void update(AnActionEvent e) {
+    super.update(e);
+    final int place = UISettings.getInstance().EDITOR_TAB_PLACEMENT;
+    e.getPresentation().setEnabled(UISettings.getInstance().SCROLL_TAB_LAYOUT_IN_EDITOR
+                                   || place == SwingConstants.LEFT
+                                   || place == SwingConstants.RIGHT);
+  }
+}

platform/platform-resources-en/src/misc/registry.properties

@@ -258,3 +258,4 @@ dark.laf.available=true
 
 actionSystem.force.alt.gr=false
 completion.show.intention.icon=true
+tabs.alphabetical=false

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

@@ -346,6 +346,7 @@
             <action id="TabsPlacementLeft"   text="Left"   class="com.intellij.ide.actions.TabsPlacementAction$Left" />
             <action id="TabsPlacementRight"  text="Right"  class="com.intellij.ide.actions.TabsPlacementAction$Right" />
           </group>
+          <action id="TabsAlphabeticalMode" class="com.intellij.ide.actions.TabsAlphabeticalModeSwitcher" text="Alphabetical Mode"/>
         </group>
 
         <group id="BackgroundTasks" popup="true">
@@ -436,6 +437,7 @@
       <reference ref="ChangeSplitOrientation"/>
       <reference ref="PinActiveTab"/>
       <reference ref="TabsPlacementGroup"/>
+      <reference ref="TabsAlphabeticalMode"/>
       <separator/>
       <reference ref="NextTab"/>
       <reference ref="PreviousTab"/>