Merge remote-tracking branch

'origin/GP-4728-dragonmacher-edit-structure-field--SQUASHED'
(Closes #5717)

Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/analysis/DefaultDataTypeManagerService.java

@@ -54,6 +54,11 @@ public class DefaultDataTypeManagerService extends DefaultDataTypeArchiveService
 		throw new UnsupportedOperationException();
 	}
 
+	@Override
+	public void edit(Structure structure, String fieldName) {
+		throw new UnsupportedOperationException();
+	}
+
 	@Override
 	public DataType getDataType(String filterText) {
 		throw new UnsupportedOperationException();

Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/compositeeditor/CompositeEditorPanel.java

@@ -20,8 +20,7 @@ import java.awt.datatransfer.DataFlavor;
 import java.awt.dnd.*;
 import java.awt.event.*;
 import java.math.BigInteger;
-import java.util.Arrays;
-import java.util.EventObject;
+import java.util.*;
 import java.util.List;
 
 import javax.swing.*;
@@ -218,6 +217,47 @@ public abstract class CompositeEditorPanel extends JPanel
 		}
 	}
 
+	/**
+	 * Select the field by the given name in this panel's table.
+	 * 
+	 * @param fieldName the field name
+	 */
+	public void selectField(String fieldName) {
+
+		if (!model.isLoaded()) {
+			return; // disposed; not sure if this can happen
+		}
+
+		// Find the given field by name in the current editor, which, if edited, may not match the
+		// original data type.  If the user has renamed the field, but not saved the editor, then
+		// we may not find the field.
+		int row = findRowForFieldName(fieldName);
+		if (row == -1) {
+			return;
+		}
+
+		table.getSelectionModel().setSelectionInterval(row, row);
+	}
+
+	private int findRowForFieldName(String fieldName) {
+		int n = model.getRowCount();
+		for (int row = 0; row < n; row++) {
+
+			DataTypeComponent dtc = model.getComponent(row);
+			if (dtc != null) {
+				String dtcFieldName = dtc.getFieldName();
+				if (Objects.equals(fieldName, dtcFieldName)) {
+					return row;
+				}
+				String defaultName = dtc.getDefaultFieldName();
+				if (Objects.equals(fieldName, defaultName)) {
+					return row;
+				}
+			}
+		}
+		return -1;
+	}
+
 	protected void cancelCellEditing() {
 		TableCellEditor cellEditor = table.getCellEditor();
 		if (cellEditor != null) {
@@ -1416,5 +1456,4 @@ public abstract class CompositeEditorPanel extends JPanel
 			KeyBindingUtils.clearKeyBinding(this, keyStroke);
 		}
 	}
-
 }

Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/compositeeditor/StructureEditorProvider.java

@@ -89,4 +89,10 @@ public class StructureEditorProvider extends CompositeEditorProvider {
 	public String getHelpTopic() {
 		return "DataTypeEditors";
 	}
+
+	public void selectField(String fieldName) {
+		if (fieldName != null) {
+			editorPanel.selectField(fieldName);
+		}
+	}
 }

Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/datamgr/DataTypeManagerPlugin.java

@@ -492,20 +492,14 @@ public class DataTypeManagerPlugin extends ProgramPlugin
 
 	@Override
 	public void edit(DataType dt) {
-		DataTypeManager dataTypeManager = dt.getDataTypeManager();
-		if (dataTypeManager == null) {
-			throw new IllegalArgumentException(
-				"DataType " + dt.getPathName() + " has no DataTypeManager!  Make sure the " +
-					"given DataType has been resolved by a DataTypeManager");
-		}
-		CategoryPath categoryPath = dt.getCategoryPath();
-		if (categoryPath == null) {
-			throw new IllegalArgumentException(
-				"DataType " + dt.getName() + " has no category path!");
-		}
 		editorManager.edit(dt);
 	}
 
+	@Override
+	public void edit(Structure dt, String fieldName) {
+		editorManager.edit(dt, fieldName);
+	}
+
 	@Override
 	public DataTypeManager getBuiltInDataTypesManager() {
 		return dataTypeManagerHandler.getBuiltInDataTypesManager();

Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/datamgr/editor/DataTypeEditorManager.java

@@ -97,17 +97,8 @@ public class DataTypeEditorManager implements EditorListener {
 	 */
 	public void edit(DataType dataType) {
 
-		DataTypeManager dataTypeManager = dataType.getDataTypeManager();
-		if (dataTypeManager == null) {
-			throw new IllegalArgumentException(
-				"Datatype " + dataType.getName() + " doesn't have a data type manager specified.");
-		}
-
-		EditorProvider editor = getEditor(dataType);
+		EditorProvider editor = reuseExistingEditor(dataType);
 		if (editor != null) {
-			ComponentProvider componentProvider = editor.getComponentProvider();
-			plugin.getTool().showComponentProvider(componentProvider, true);
-			componentProvider.toFront();
 			return;
 		}
 
@@ -124,13 +115,58 @@ public class DataTypeEditorManager implements EditorListener {
 		else if (dataType instanceof FunctionDefinition) {
 			editFunctionSignature((FunctionDefinition) dataType);
 		}
-		if (editor == null) {
+
+		if (editor != null) {
+			editor.addEditorListener(this);
+			editorList.add(editor);
+		}
+	}
+
+	/**
+	 * Displays a data type editor for editing the given Structure. If the structure is is already 
+	 * being edited then it is brought to the front. Otherwise, a new editor is created and 
+	 * displayed.
+	 * @param structure the structure.
+	 * @param fieldName the optional name of the field to select in the editor.
+	 */
+	public void edit(Structure structure, String fieldName) {
+
+		StructureEditorProvider editor = (StructureEditorProvider) getEditor(structure);
+		if (editor != null) {
+			reuseExistingEditor(structure);
+			editor.selectField(fieldName);
 			return;
 		}
+
+		editor = new StructureEditorProvider(plugin, structure,
+			showStructureNumbersInHex());
+		editor.selectField(fieldName);
 		editor.addEditorListener(this);
 		editorList.add(editor);
 	}
 
+	private EditorProvider reuseExistingEditor(DataType dataType) {
+		DataTypeManager dataTypeManager = dataType.getDataTypeManager();
+		if (dataTypeManager == null) {
+			throw new IllegalArgumentException(
+				"Datatype " + dataType.getName() + " doesn't have a data type manager specified.");
+		}
+
+		CategoryPath categoryPath = dataType.getCategoryPath();
+		if (categoryPath == null) {
+			throw new IllegalArgumentException(
+				"DataType " + dataType.getName() + " has no category path!");
+		}
+
+		EditorProvider editor = getEditor(dataType);
+		if (editor != null) {
+			ComponentProvider componentProvider = editor.getComponentProvider();
+			plugin.getTool().showComponentProvider(componentProvider, true);
+			componentProvider.toFront();
+		}
+		return editor;
+	}
+
 	private void installEditorActions() {
 
 		// composite editor actions

Ghidra/Features/Base/src/main/java/ghidra/app/services/DataTypeManagerService.java

@@ -22,8 +22,7 @@ import javax.swing.tree.TreePath;
 
 import ghidra.app.plugin.core.datamgr.DataTypeManagerPlugin;
 import ghidra.framework.plugintool.ServiceInfo;
-import ghidra.program.model.data.DataType;
-import ghidra.program.model.data.DataTypeManagerChangeListener;
+import ghidra.program.model.data.*;
 import ghidra.util.HelpLocation;
 
 /**
@@ -88,14 +87,24 @@ public interface DataTypeManagerService extends DataTypeQueryService, DataTypeAr
 	public boolean isEditable(DataType dt);
 
 	/**
-	 * Pop up an editor dialog for the given data type.
+	 * Pop up an editor window for the given data type.
 	 * 
-	 * @param dt data type that either a Structure or a Union; built in types cannot be edited
+	 * @param dt the data type; built in types cannot be edited
 	 * @throws IllegalArgumentException if the given has not been resolved by a DataTypeManager;
-	 *         in other words, if {@link DataType#getDataTypeManager()} returns null.
+	 *         in other words, if {@link DataType#getDataTypeManager()} returns null
 	 */
 	public void edit(DataType dt);
 
+	/**
+	 * Pop up an editor window for the given structure.
+	 * 
+	 * @param structure the structure
+	 * @param fieldName the optional structure field name to select in the editor window
+	 * @throws IllegalArgumentException if the given has not been resolved by a DataTypeManager;
+	 *         in other words, if {@link DataType#getDataTypeManager()} returns null
+	 */
+	public void edit(Structure structure, String fieldName);
+
 	/**
 	 * Selects the given data type in the display of data types.  A null <code>dataType</code>
 	 * value will clear the current selection.

Ghidra/Features/Base/src/test/java/ghidra/app/services/TestDoubleDataTypeManagerService.java

@@ -99,6 +99,11 @@ public class TestDoubleDataTypeManagerService implements DataTypeManagerService
 		throw new UnsupportedOperationException();
 	}
 
+	@Override
+	public void edit(Structure structure, String fieldName) {
+		throw new UnsupportedOperationException();
+	}
+
 	@Override
 	public void closeArchive(DataTypeManager dtm) {
 		throw new UnsupportedOperationException();

Ghidra/Features/Decompiler/src/main/java/ghidra/app/plugin/core/decompile/actions/EditDataTypeAction.java

@@ -17,14 +17,16 @@ package ghidra.app.plugin.core.decompile.actions;
 
 import docking.ActionContext;
 import docking.action.MenuData;
+import ghidra.app.decompiler.ClangFieldToken;
+import ghidra.app.decompiler.ClangToken;
+import ghidra.app.decompiler.component.DecompilerPanel;
 import ghidra.app.decompiler.component.DecompilerUtils;
 import ghidra.app.plugin.core.datamgr.util.DataTypeUtils;
 import ghidra.app.plugin.core.decompile.DecompilerActionContext;
 import ghidra.app.services.DataTypeManagerService;
 import ghidra.app.util.HelpTopics;
 import ghidra.framework.plugintool.PluginTool;
-import ghidra.program.model.data.DataType;
-import ghidra.program.model.data.DataTypeManager;
+import ghidra.program.model.data.*;
 import ghidra.program.model.listing.Function;
 import ghidra.util.HelpLocation;
 import ghidra.util.UndefinedFunction;
@@ -74,9 +76,31 @@ public class EditDataTypeAction extends AbstractDecompilerAction {
 		if (baseDtDTM != dataTypeManager) {
 			baseDataType = baseDataType.clone(dataTypeManager);
 		}
-		final DataTypeManagerService service =
+
+		DataTypeManagerService service =
 			context.getTool().getService(DataTypeManagerService.class);
-		service.edit(baseDataType);
+
+		if (dataType instanceof Structure structure) {
+			editStructure(service, structure, context);
+		}
+		else {
+			service.edit(baseDataType);
+		}
 	}
 
+	private void editStructure(DataTypeManagerService service, Structure structure,
+			DecompilerActionContext context) {
+
+		DecompilerPanel decompilerPanel = context.getDecompilerPanel();
+		ClangToken tokenAtCursor = decompilerPanel.getTokenAtCursor();
+		if (tokenAtCursor instanceof ClangFieldToken) {
+			String fieldName = tokenAtCursor.getText();
+			if (fieldName != null) {
+				service.edit(structure, fieldName);
+				return;
+			}
+		}
+
+		service.edit(structure);
+	}
 }