GP-1743 - Added a method to GhiraScript to allow script writers to

disable reusing previously chosen values in the various 'ask' methods.

Ghidra/Features/Base/src/main/java/ghidra/app/script/GhidraScript.java

@@ -140,6 +140,7 @@ public abstract class GhidraScript extends FlatProgramAPI {
 	// Stores any parameters in a .properties file sharing the same base name as this GhidraScript
 	protected GhidraScriptProperties propertiesFileParams;
 	protected List<ResourceFile> potentialPropertiesFileLocs = new ArrayList<>();
+	private boolean reusePreviousChoices = true;
 	private CodeUnitFormat cuFormat;
 
 	// Stores any script-specific arguments
@@ -193,6 +194,25 @@ public abstract class GhidraScript extends FlatProgramAPI {
 		loadVariablesFromState();
 	}
 
+	/**
+	 * Sets whether the user's previously selected values should be used when showing the various
+	 * {@code ask} methods.   This is true by default, meaning that previous choices will be shown
+	 * instead of any provided default value.
+	 * @param reuse true to reuse values; false to not reuse previous values
+	 */
+	public void setReusePreviousChoices(boolean reuse) {
+		this.reusePreviousChoices = reuse;
+	}
+
+	/**
+	 * Returns whether scripts will reuse previously selected values when showing the various
+	 * {@code ask} methods.
+	 * @return true to reuse values; false to not reuse previous values
+	 */
+	public boolean getReusePreviousChoices() {
+		return reusePreviousChoices;
+	}
+
 	/**
 	 * Execute/run script and {@link #doCleanup} afterwards.
 	 *
@@ -1954,7 +1974,7 @@ public abstract class GhidraScript extends FlatProgramAPI {
 		Map<Class<?>, Object> map = getScriptMap(key1, key2);
 
 		T mappedValue = null;
-		if (clazz != null) {
+		if (clazz != null && reusePreviousChoices) {
 			mappedValue = (T) map.get(clazz);
 		}
 

Ghidra/Features/Base/src/test.slow/java/ghidra/app/script/GhidraScriptAskMethodsTest.java

@@ -622,13 +622,40 @@ public class GhidraScriptAskMethodsTest extends AbstractGhidraHeadedIntegrationT
 
 		createScript();
 
-		final String defaultValue = "a default value";
+		String defaultValue = "a default value";
 		String myString = ask_TextInput(() -> {
 			return script.askString("Default Test", "Enter a string here:", defaultValue);
 		});
 		assertEquals(defaultValue, myString);
 	}
 
+	@Test
+	public void testAskStringDefaultValue_DoNotReusePreviousValues() throws Exception {
+		createScript();
+
+		String defaultValue = "a default value";
+		String myString = ask_TextInput(() -> {
+			return script.askString("Default Test", "Enter a string here:", defaultValue);
+		});
+		assertEquals(defaultValue, myString);
+
+		script.setReusePreviousChoices(false);
+
+		String secondDefaultValue = "a new default value";
+		String secondString = ask_TextInput(() -> {
+			return script.askString("Default Test", "Enter a string here:", secondDefaultValue);
+		});
+		assertEquals(secondDefaultValue, secondString);
+
+		script.setReusePreviousChoices(true);
+
+		String thirdDefaultValue = "a third default value";
+		String thirdString = ask_TextInput(() -> {
+			return script.askString("Default Test", "Enter a string here:", thirdDefaultValue);
+		});
+		assertEquals(secondString, thirdString);
+	}
+
 	@Test
 	public void testAskChoice() throws Exception {
 		createScript();