Partial implementation of virtualedit config

src/com/maddyhome/idea/vim/action/motion/leftright/MotionArrowRightAction.kt

@@ -27,6 +27,8 @@ import com.maddyhome.idea.vim.command.Argument
 import com.maddyhome.idea.vim.command.MotionType
 import com.maddyhome.idea.vim.handler.NonShiftedSpecialKeyHandler
 import com.maddyhome.idea.vim.helper.StringHelper.parseKeys
+import com.maddyhome.idea.vim.helper.commandState
+import com.maddyhome.idea.vim.helper.isEndAllowed
 import java.awt.event.KeyEvent
 import javax.swing.KeyStroke
 
@@ -39,7 +41,8 @@ class MotionArrowRightAction : NonShiftedSpecialKeyHandler(), ComplicatedKeysAct
   )
 
   override fun offset(editor: Editor, caret: Caret, context: DataContext, count: Int, rawCount: Int, argument: Argument?): Int {
-    return VimPlugin.getMotion().moveCaretHorizontal(editor, caret, count, false)
+    val allowPastEnd = editor.commandState.mode.isEndAllowed
+    return VimPlugin.getMotion().moveCaretHorizontal(editor, caret, count, allowPastEnd)
   }
 }
 

src/com/maddyhome/idea/vim/action/motion/updown/MotionArrowDownAction.kt

@@ -44,11 +44,11 @@ class MotionArrowDownAction : NonShiftedSpecialKeyHandler(), ComplicatedKeysActi
   }
 
   override fun preOffsetComputation(editor: Editor, caret: Caret, context: DataContext, cmd: Command): Boolean {
-    col = EditorHelper.prepareLastColumn(editor, caret)
+    col = EditorHelper.prepareLastColumn(caret)
     return true
   }
 
   override fun postMove(editor: Editor, caret: Caret, context: DataContext, cmd: Command) {
-    EditorHelper.updateLastColumn(editor, caret, col)
+    EditorHelper.updateLastColumn(caret, col)
   }
 }

src/com/maddyhome/idea/vim/action/motion/updown/MotionArrowUpAction.kt

@@ -44,11 +44,11 @@ class MotionArrowUpAction : NonShiftedSpecialKeyHandler(), ComplicatedKeysAction
   }
 
   override fun preOffsetComputation(editor: Editor, caret: Caret, context: DataContext, cmd: Command): Boolean {
-    col = EditorHelper.prepareLastColumn(editor, caret)
+    col = EditorHelper.prepareLastColumn(caret)
     return true
   }
 
   override fun postMove(editor: Editor, caret: Caret, context: DataContext, cmd: Command) {
-    EditorHelper.updateLastColumn(editor, caret, col)
+    EditorHelper.updateLastColumn(caret, col)
   }
 }

src/com/maddyhome/idea/vim/action/motion/updown/MotionDownActions.kt

@@ -36,12 +36,12 @@ sealed class MotionDownBase : MotionActionHandler.ForEachCaret() {
   private var col: Int = 0
 
   override fun preOffsetComputation(editor: Editor, caret: Caret, context: DataContext, cmd: Command): Boolean {
-    col = EditorHelper.prepareLastColumn(editor, caret)
+    col = EditorHelper.prepareLastColumn(caret)
     return true
   }
 
   override fun postMove(editor: Editor, caret: Caret, context: DataContext, cmd: Command) {
-    EditorHelper.updateLastColumn(editor, caret, col)
+    EditorHelper.updateLastColumn(caret, col)
   }
 }
 

src/com/maddyhome/idea/vim/action/motion/updown/MotionShiftDownAction.kt

@@ -24,8 +24,7 @@ import com.maddyhome.idea.vim.VimPlugin
 import com.maddyhome.idea.vim.command.Command
 import com.maddyhome.idea.vim.group.MotionGroup
 import com.maddyhome.idea.vim.handler.ShiftedArrowKeyHandler
-import com.maddyhome.idea.vim.helper.EditorHelper
-import com.maddyhome.idea.vim.helper.vimForEachCaret
+import com.maddyhome.idea.vim.helper.*
 
 /**
  * @author Alex Plate
@@ -38,10 +37,10 @@ class MotionShiftDownAction : ShiftedArrowKeyHandler() {
   override fun motionWithKeyModel(editor: Editor, context: DataContext, cmd: Command) {
     editor.vimForEachCaret { caret ->
       val vertical = VimPlugin.getMotion().moveCaretVertical(editor, caret, cmd.count)
-      val col = EditorHelper.prepareLastColumn(editor, caret)
+      val col = EditorHelper.prepareLastColumn(caret)
       MotionGroup.moveCaret(editor, caret, vertical)
 
-      EditorHelper.updateLastColumn(editor, caret, col)
+      EditorHelper.updateLastColumn(caret, col)
     }
   }
 

src/com/maddyhome/idea/vim/action/motion/updown/MotionShiftUpAction.kt

@@ -24,8 +24,7 @@ import com.maddyhome.idea.vim.VimPlugin
 import com.maddyhome.idea.vim.command.Command
 import com.maddyhome.idea.vim.group.MotionGroup
 import com.maddyhome.idea.vim.handler.ShiftedArrowKeyHandler
-import com.maddyhome.idea.vim.helper.EditorHelper
-import com.maddyhome.idea.vim.helper.vimForEachCaret
+import com.maddyhome.idea.vim.helper.*
 
 /**
  * @author Alex Plate
@@ -38,10 +37,10 @@ class MotionShiftUpAction : ShiftedArrowKeyHandler() {
   override fun motionWithKeyModel(editor: Editor, context: DataContext, cmd: Command) {
     editor.vimForEachCaret { caret ->
       val vertical = VimPlugin.getMotion().moveCaretVertical(editor, caret, -cmd.count)
-      val col = EditorHelper.prepareLastColumn(editor, caret)
+      val col = EditorHelper.prepareLastColumn(caret)
       MotionGroup.moveCaret(editor, caret, vertical)
 
-      EditorHelper.updateLastColumn(editor, caret, col)
+      EditorHelper.updateLastColumn(caret, col)
     }
   }
 

src/com/maddyhome/idea/vim/action/motion/updown/MotionUpActions.kt

@@ -36,12 +36,12 @@ sealed class MotionUpBase : MotionActionHandler.ForEachCaret() {
   private var col: Int = 0
 
   override fun preOffsetComputation(editor: Editor, caret: Caret, context: DataContext, cmd: Command): Boolean {
-    col = EditorHelper.prepareLastColumn(editor, caret)
+    col = EditorHelper.prepareLastColumn(caret)
     return true
   }
 
   override fun postMove(editor: Editor, caret: Caret, context: DataContext, cmd: Command) {
-    EditorHelper.updateLastColumn(editor, caret, col)
+    EditorHelper.updateLastColumn(caret, col)
   }
 }
 

src/com/maddyhome/idea/vim/command/CommandState.kt

@@ -21,11 +21,8 @@ import com.intellij.openapi.diagnostic.Logger
 import com.intellij.openapi.diagnostic.debug
 import com.intellij.openapi.editor.Editor
 import com.maddyhome.idea.vim.VimPlugin
-import com.maddyhome.idea.vim.command.CommandState
-import com.maddyhome.idea.vim.helper.DigraphResult
-import com.maddyhome.idea.vim.helper.DigraphSequence
-import com.maddyhome.idea.vim.helper.noneOfEnum
-import com.maddyhome.idea.vim.helper.vimCommandState
+import com.maddyhome.idea.vim.action.motion.updown.*
+import com.maddyhome.idea.vim.helper.*
 import com.maddyhome.idea.vim.key.CommandPartNode
 import com.maddyhome.idea.vim.option.OptionsManager.showmode
 import org.jetbrains.annotations.ApiStatus

src/com/maddyhome/idea/vim/group/ChangeGroup.java

@@ -766,15 +766,26 @@ public void beforeProcessKey(final @NotNull Editor editor,
    * @return true if able to delete the text, false if not
    */
   public boolean deleteEndOfLine(@NotNull Editor editor, @NotNull Caret caret, int count) {
+    int initialOffset = caret.getOffset();
     int offset = VimPlugin.getMotion().moveCaretToLineEndOffset(editor, caret, count - 1, true);
+
+    int startOffset = initialOffset;
+    if (offset == initialOffset) startOffset--; // handle delete from virtual space
+
     if (offset != -1) {
-      final TextRange rangeToDelete = new TextRange(caret.getOffset(), offset);
+      final TextRange rangeToDelete = new TextRange(startOffset, offset);
       editor.getCaretModel().getAllCarets().stream().filter(c -> c != caret && rangeToDelete.contains(c.getOffset()))
         .forEach(c -> editor.getCaretModel().removeCaret(c));
       boolean res = deleteText(editor, rangeToDelete, SelectionType.CHARACTER_WISE);
-      int pos = VimPlugin.getMotion().moveCaretHorizontal(editor, caret, -1, false);
-      if (pos != -1) {
-        MotionGroup.moveCaret(editor, caret, pos);
+
+      if (CommandStateHelper.getUsesVirtualSpace()) {
+        MotionGroup.moveCaret(editor, caret, startOffset);
+      }
+      else {
+        int pos = VimPlugin.getMotion().moveCaretHorizontal(editor, caret, -1, false);
+        if (pos != -1) {
+          MotionGroup.moveCaret(editor, caret, pos);
+        }
       }
 
       return res;