Implement Undo/Redo for StyledText apache#4708

Fix Variable insertion apache#4591
If StyledText widget, position the variables list under the caret
Fix StyledText "disabled" look with dark mode
Add key CTRL+A for select all in TextComposite
Use TextComposite in ActionEvalDialog
Reduce code duplication

plugins/actions/eval/src/main/java/org/apache/hop/workflow/actions/eval/ActionEvalDialog.java

@@ -24,8 +24,11 @@
 import org.apache.hop.ui.core.PropsUi;
 import org.apache.hop.ui.core.dialog.BaseDialog;
 import org.apache.hop.ui.core.dialog.MessageBox;
+import org.apache.hop.ui.core.widget.JavaScriptStyledTextComp;
 import org.apache.hop.ui.core.widget.StyledTextComp;
+import org.apache.hop.ui.core.widget.TextComposite;
 import org.apache.hop.ui.pipeline.transform.BaseTransformDialog;
+import org.apache.hop.ui.util.EnvironmentUtils;
 import org.apache.hop.ui.workflow.action.ActionDialog;
 import org.apache.hop.ui.workflow.dialog.WorkflowDialog;
 import org.apache.hop.workflow.WorkflowMeta;
@@ -52,7 +55,7 @@ public class ActionEvalDialog extends ActionDialog {
 
   private Text wName;
 
-  private StyledTextComp wScript;
+  private TextComposite wScript;
 
   private Label wlPosition;
 
@@ -133,16 +136,30 @@ public IAction open() {
     fdlScript.left = new FormAttachment(0, 0);
     fdlScript.top = new FormAttachment(wName, margin);
     wlScript.setLayoutData(fdlScript);
-    wScript =
-        new StyledTextComp(
-            action, shell, SWT.MULTI | SWT.LEFT | SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
+
+    if (EnvironmentUtils.getInstance().isWeb()) {
+      wScript =
+          new StyledTextComp(
+              action,
+              shell,
+              SWT.MULTI | SWT.LEFT | SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL,
+              false);
+    } else {
+      wScript =
+          new JavaScriptStyledTextComp(
+              action,
+              shell,
+              SWT.MULTI | SWT.LEFT | SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL,
+              false);
+      wScript.addLineStyleListener();
+    }
     wScript.setText(BaseMessages.getString(PKG, "ActionEval.Script.Default"));
     PropsUi.setLook(wScript, Props.WIDGET_STYLE_FIXED);
     wScript.addModifyListener(lsMod);
     FormData fdScript = new FormData();
     fdScript.left = new FormAttachment(0, 0);
     fdScript.top = new FormAttachment(wlScript, margin);
-    fdScript.right = new FormAttachment(100, -10);
+    fdScript.right = new FormAttachment(100, 0);
     fdScript.bottom = new FormAttachment(wlPosition, -margin);
     wScript.setLayoutData(fdScript);
     wScript.addModifyListener(arg0 -> setPosition());

plugins/actions/sql/src/main/java/org/apache/hop/workflow/actions/sql/ActionSqlDialog.java

@@ -289,7 +289,7 @@ public IAction open() {
     FormData fdSql = new FormData();
     fdSql.left = new FormAttachment(0, 0);
     fdSql.top = new FormAttachment(wlSql, margin);
-    fdSql.right = new FormAttachment(100, -20);
+    fdSql.right = new FormAttachment(100, -margin);
     fdSql.bottom = new FormAttachment(wlPosition, -margin);
     wSql.setLayoutData(fdSql);
     wSql.addListener(SWT.Modify, e -> setPosition());

plugins/actions/sql/src/main/resources/org/apache/hop/workflow/actions/sql/messages/messages_en_US.properties

@@ -35,7 +35,7 @@ ActionSQL.NoDatabaseConnection=No database connection is defined.
 ActionSQL.NoSQLFileSpecified=Please specify SQL filename\!
 ActionSQL.Position.Label=Line {0} Column {1}
 ActionSQL.Script.Label=SQL Script\: 
-ActionSQL.SendOneStatement.Label=Send SQL as single statement?
+ActionSQL.SendOneStatement.Label=Send SQL as single statement
 ActionSQL.SendOneStatement.Tooltip=Consider SQL as one running statement\nOtherwise ';' will be taken as statement end.
 ActionSQL.SQLFileExists=SQL file [{0}] exists
 ActionSQL.SQLFileNotExist=We can not find file [{0}]\!

plugins/actions/waitforsql/src/main/java/org/apache/hop/workflow/actions/waitforsql/ActionWaitForSqlDialog.java

@@ -539,7 +539,7 @@ public void widgetSelected(SelectionEvent e) {
     FormData fdSql = new FormData();
     fdSql.left = new FormAttachment(0, 0);
     fdSql.top = new FormAttachment(wbSqlTable, margin);
-    fdSql.right = new FormAttachment(100, -10);
+    fdSql.right = new FormAttachment(100, 0);
     fdSql.bottom = new FormAttachment(wlPosition, -margin);
     wSql.setLayoutData(fdSql);
 

plugins/transforms/janino/src/main/java/org/apache/hop/pipeline/transforms/userdefinedjavaclass/UserDefinedJavaClassDialog.java

@@ -1626,7 +1626,7 @@ private void treeDblClick(Event event) {
       if (item.getParentItem().equals(wTreeClassesItem)) {
         setActiveCtab(item.getText());
       } else if (!item.getData().equals("Snippit")) {
-        int iStart = wScript.getCaretOffset();
+        int iStart = wScript.getCaretPosition();
         int selCount = wScript.getSelectionCount(); // this selection
         // will be replaced
         // by wScript.insert

plugins/transforms/javascript/src/main/java/org/apache/hop/pipeline/transforms/javascript/ScriptValuesDialog.java

@@ -1596,8 +1596,7 @@ private void treeDblClick(Event event) {
       if (item.getParentItem().equals(wTreeScriptsItem)) {
         setActiveCtab(item.getText());
       } else if (!item.getData().equals(CONST_FUNCTION)) {
-        // int iStart = wScript.getTextWidget().getCaretOffset();
-        int iStart = wScript.getCaretOffset();
+        int iStart = wScript.getCaretPosition();
         int selCount =
             wScript.getSelectionCount(); // this selection will be replaced by wScript.insert
         iStart =

plugins/transforms/ldap/src/main/java/org/apache/hop/pipeline/transforms/ldapinput/LdapInputDialog.java

@@ -40,7 +40,6 @@
 import org.apache.hop.ui.core.gui.GuiResource;
 import org.apache.hop.ui.core.widget.ColumnInfo;
 import org.apache.hop.ui.core.widget.ComboVar;
-import org.apache.hop.ui.core.widget.ControlSpaceKeyAdapter;
 import org.apache.hop.ui.core.widget.PasswordTextVar;
 import org.apache.hop.ui.core.widget.StyledTextComp;
 import org.apache.hop.ui.core.widget.TableView;
@@ -744,7 +743,8 @@ public void focusGained(org.eclipse.swt.events.FocusEvent e) {
         new StyledTextComp(
             variables,
             wSearchGroup,
-            SWT.MULTI | SWT.LEFT | SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
+            SWT.MULTI | SWT.LEFT | SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL,
+            true);
     wFilterString.setToolTipText(
         BaseMessages.getString(PKG, "LdapInputDialog.FilterString.Tooltip"));
     PropsUi.setLook(wFilterString);
@@ -755,7 +755,6 @@ public void focusGained(org.eclipse.swt.events.FocusEvent e) {
     fdFilterString.right = new FormAttachment(100, -2 * margin);
     fdFilterString.bottom = new FormAttachment(100, -margin);
     wFilterString.setLayoutData(fdFilterString);
-    wFilterString.addKeyListener(new ControlSpaceKeyAdapter(variables, wFilterString));
 
     FormData fdSearchGroup = new FormData();
     fdSearchGroup.left = new FormAttachment(0, margin);

plugins/transforms/sql/src/main/java/org/apache/hop/pipeline/transforms/sql/ExecSqlDialog.java

@@ -267,7 +267,7 @@ public void mouseUp(MouseEvent e) {
     FormData fdlReadField = new FormData();
     fdlReadField.left = new FormAttachment(middle, margin);
     fdlReadField.right = new FormAttachment(middle * 2, -margin);
-    fdlReadField.bottom = new FormAttachment(wOk, -3 * margin);
+    fdlReadField.bottom = new FormAttachment(wOk, -margin);
     wlReadField.setLayoutData(fdlReadField);
     wReadField = new Text(shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER);
     PropsUi.setLook(wReadField);

plugins/transforms/tableinput/src/main/java/org/apache/hop/pipeline/transforms/tableinput/TableInputDialog.java

@@ -284,7 +284,7 @@ public void widgetSelected(SelectionEvent arg0) {
     FormData fdSql = new FormData();
     fdSql.left = new FormAttachment(0, 0);
     fdSql.top = new FormAttachment(wbTable, margin);
-    fdSql.right = new FormAttachment(100, -2 * margin);
+    fdSql.right = new FormAttachment(100, -margin);
     fdSql.bottom = new FormAttachment(wlPosition, -margin);
     wSql.setLayoutData(fdSql);
     wSql.addModifyListener(

plugins/transforms/writetolog/src/main/java/org/apache/hop/pipeline/transforms/writetolog/WriteToLogDialog.java

@@ -210,7 +210,7 @@ public String open() {
     FormData fdLogMessage = new FormData();
     fdLogMessage.left = new FormAttachment(middle, 0);
     fdLogMessage.top = new FormAttachment(wLimitRowsNumber, margin);
-    fdLogMessage.right = new FormAttachment(100, -2 * margin);
+    fdLogMessage.right = new FormAttachment(100, -margin);
     fdLogMessage.height = (int) (125 * props.getZoomFactor());
     wLogMessage.setLayoutData(fdLogMessage);
     wLogMessage.addListener(SWT.Modify, lsModify);

ui/src/main/java/org/apache/hop/ui/core/widget/ControlSpaceKeyAdapter.java

@@ -36,12 +36,9 @@
 import org.apache.hop.ui.core.gui.GuiResource;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.custom.CCombo;
-import org.eclipse.swt.events.FocusAdapter;
-import org.eclipse.swt.events.FocusEvent;
+import org.eclipse.swt.custom.StyledText;
 import org.eclipse.swt.events.KeyAdapter;
 import org.eclipse.swt.events.KeyEvent;
-import org.eclipse.swt.events.SelectionAdapter;
-import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.graphics.Point;
 import org.eclipse.swt.graphics.Rectangle;
 import org.eclipse.swt.layout.FormLayout;
@@ -55,8 +52,6 @@ public class ControlSpaceKeyAdapter extends KeyAdapter {
 
   private static final Class<?> PKG = ControlSpaceKeyAdapter.class;
 
-  private static final PropsUi props = PropsUi.getInstance();
-
   private final IGetCaretPosition getCaretPositionInterface;
 
   private final IInsertText insertTextInterface;
@@ -95,31 +90,31 @@ public ControlSpaceKeyAdapter(
    * in chinese window, Ctrl-SPACE is reversed by system for input chinese character. use
    * Ctrl-ALT-SPACE instead.
    *
-   * @param e the keyevent
+   * @param event the keyevent
    * @return true when ctrl-SPACE is pressed
    */
-  private boolean isHotKey(KeyEvent e) {
+  private boolean isHotKey(KeyEvent event) {
     if (System.getProperty("user.language").equals("zh")) {
-      return e.character == ' '
-          && ((e.stateMask & SWT.CONTROL) != 0)
-          && ((e.stateMask & SWT.ALT) != 0);
+      return event.character == ' '
+          && ((event.stateMask & SWT.CONTROL) != 0)
+          && ((event.stateMask & SWT.ALT) != 0);
     } else if (OsHelper.isMac()) {
       // character is empty when pressing special key in macOs
-      return e.keyCode == 32
-          && ((e.stateMask & SWT.CONTROL) != 0)
-          && ((e.stateMask & SWT.ALT) == 0);
+      return event.keyCode == 32
+          && ((event.stateMask & SWT.CONTROL) != 0)
+          && ((event.stateMask & SWT.ALT) == 0);
     } else {
-      return e.character == ' '
-          && ((e.stateMask & SWT.CONTROL) != 0)
-          && ((e.stateMask & SWT.ALT) == 0);
+      return event.character == ' '
+          && ((event.stateMask & SWT.CONTROL) != 0)
+          && ((event.stateMask & SWT.ALT) == 0);
     }
   }
 
   @Override
-  public void keyPressed(KeyEvent e) {
+  public void keyPressed(KeyEvent event) {
     // CTRL-<SPACE> --> Insert a variable
-    if (isHotKey(e)) {
-      e.doit = false;
+    if (isHotKey(event)) {
+      event.doit = false;
 
       // textField.setData(TRUE) indicates we have transitioned from the textbox to list mode...
       // This will be set to false when the list selection has been processed
@@ -136,11 +131,21 @@ public void keyPressed(KeyEvent e) {
       // Drop down a list of variables...
       //
       Rectangle bounds = control.getBounds();
-      Point location = GuiResource.calculateControlPosition(control);
+      Point location;
+      if (control instanceof StyledText styledText) {
+        // Position the list under the caret
+        location = styledText.getLocationAtOffset(styledText.getCaretOffset());
+        location.y += styledText.getLineHeight();
+        location = styledText.toDisplay(location);
+      } else {
+        // Position the list under the control
+        location = GuiResource.calculateControlPosition(control);
+        location.y += bounds.height;
+      }
 
       final Shell shell = new Shell(control.getShell(), SWT.NONE);
       shell.setSize(bounds.width > 300 ? bounds.width : 300, 200);
-      shell.setLocation(location.x, location.y + bounds.height);
+      shell.setLocation(location.x, location.y);
       shell.setLayout(new FormLayout());
       final List list = new List(shell, SWT.SINGLE | SWT.H_SCROLL | SWT.V_SCROLL);
       PropsUi.setLook(list);
@@ -149,59 +154,50 @@ public void keyPressed(KeyEvent e) {
       final ToolTip toolTip = new ToolTip(list.getShell(), SWT.BALLOON);
       toolTip.setAutoHide(true);
 
-      list.addSelectionListener(
-          new SelectionAdapter() {
-            // Enter or double-click: picks the variable
-            //
-            @Override
-            public synchronized void widgetDefaultSelected(SelectionEvent e) {
-              applyChanges(shell, list, control, position, insertTextInterface);
+      // Double-click: picks the variable
+      list.addListener(
+          SWT.DefaultSelection,
+          e -> applyChanges(shell, list, control, position, insertTextInterface));
+
+      // Select a variable name: display the value in a tool tip
+      list.addListener(
+          SWT.Selection,
+          e -> {
+            if (list.getSelectionCount() <= 0) {
+              return;
             }
-
-            // Select a variable name: display the value in a tool tip
-            //
-            @Override
-            public void widgetSelected(SelectionEvent event) {
-              if (list.getSelectionCount() <= 0) {
-                return;
-              }
-              String name = list.getSelection()[0];
-              String value = variables.getVariable(name);
-              Rectangle shellBounds = shell.getBounds();
-              String message =
-                  BaseMessages.getString(PKG, "TextVar.VariableValue.Message", name, value);
-              if (name.startsWith(Const.INTERNAL_VARIABLE_PREFIX)) {
-                message += BaseMessages.getString(PKG, "TextVar.InternalVariable.Message");
-              }
-              toolTip.setText(message);
-              toolTip.setVisible(false);
-              toolTip.setLocation(
-                  shell.getLocation().x, shell.getLocation().y + shellBounds.height);
-              toolTip.setVisible(true);
+            String name = list.getSelection()[0];
+            String value = variables.getVariable(name);
+            Rectangle shellBounds = shell.getBounds();
+            String message =
+                BaseMessages.getString(PKG, "TextVar.VariableValue.Message", name, value);
+            if (name.startsWith(Const.INTERNAL_VARIABLE_PREFIX)) {
+              message += BaseMessages.getString(PKG, "TextVar.InternalVariable.Message");
             }
+            toolTip.setText(message);
+            toolTip.setVisible(false);
+            toolTip.setLocation(shell.getLocation().x, shell.getLocation().y + shellBounds.height);
+            toolTip.setVisible(true);
           });
 
-      list.addKeyListener(
-          new KeyAdapter() {
-
-            @Override
-            public synchronized void keyPressed(KeyEvent e) {
-              if (e.keyCode == SWT.CR
-                  && ((e.keyCode & SWT.CONTROL) == 0)
-                  && ((e.keyCode & SWT.SHIFT) == 0)) {
-                applyChanges(shell, list, control, position, insertTextInterface);
-              }
+      // Enter key pressed: picks the variable
+      list.addListener(
+          SWT.KeyDown,
+          e -> {
+            if (e.keyCode == SWT.CR
+                && ((e.stateMask & SWT.CONTROL) == 0)
+                && ((e.stateMask & SWT.SHIFT) == 0)) {
+              applyChanges(shell, list, control, position, insertTextInterface);
             }
           });
 
-      list.addFocusListener(
-          new FocusAdapter() {
-            @Override
-            public void focusLost(FocusEvent event) {
-              shell.dispose();
-              if (!control.isDisposed()) {
-                control.setData(Boolean.FALSE);
-              }
+      // Focus lost: close the list
+      list.addListener(
+          SWT.FocusOut,
+          e -> {
+            shell.dispose();
+            if (!control.isDisposed()) {
+              control.setData(Boolean.FALSE);
             }
           });
 
@@ -226,13 +222,13 @@ private static void applyChanges(
       if (list.getSelectionCount() <= 0) {
         return;
       }
-      if (control instanceof Text textControl) {
-        textControl.insert(extra);
+      if (control instanceof Text text) {
+        text.insert(extra);
       } else if (control instanceof CCombo combo) {
-        combo.setText(
-            extra); // We can't know the location of the cursor yet. All we can do is overwrite.
-      } else if (control instanceof StyledTextComp styledTextCompControl) {
-        styledTextCompControl.insert(extra);
+        // We can't know the location of the cursor yet. All we can do is overwrite.
+        combo.setText(extra);
+      } else if (control instanceof StyledText styledText) {
+        styledText.insert(extra);
       }
     }
     if (!shell.isDisposed()) {