Add PROPERTY_HINT_INPUT_NAME

Added PROPERTY_HINT_INPUT_NAME for StringName based off godotengine/godot-proposals#7559

Author: Dynamic-Pistol

core/core_constants.cpp

@@ -679,6 +679,7 @@ void register_global_constants() {
 	BIND_CORE_ENUM_CONSTANT(PROPERTY_HINT_TOOL_BUTTON);
 	BIND_CORE_ENUM_CONSTANT(PROPERTY_HINT_ONESHOT);
 	BIND_CORE_ENUM_CONSTANT(PROPERTY_HINT_GROUP_ENABLE);
+	BIND_CORE_ENUM_CONSTANT(PROPERTY_HINT_INPUT_NAME);
 	BIND_CORE_ENUM_CONSTANT(PROPERTY_HINT_MAX);
 
 	BIND_CORE_BITFIELD_FLAG(PROPERTY_USAGE_NONE);

core/input/input_event.cpp

@@ -1668,7 +1668,7 @@ void InputEventAction::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_event_index", "index"), &InputEventAction::set_event_index);
 	ClassDB::bind_method(D_METHOD("get_event_index"), &InputEventAction::get_event_index);
 
-	ADD_PROPERTY(PropertyInfo(Variant::STRING_NAME, "action"), "set_action", "get_action");
+	ADD_PROPERTY(PropertyInfo(Variant::STRING_NAME, "action", PROPERTY_HINT_INPUT_NAME, "show_builtin,loose_mode"), "set_action", "get_action");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "pressed"), "set_pressed", "is_pressed");
 	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "strength", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_strength", "get_strength");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "event_index", PROPERTY_HINT_RANGE, "-1,31,1"), "set_event_index", "get_event_index"); // The max value equals to Input::MAX_EVENT - 1.

core/object/object.h

@@ -94,6 +94,7 @@ enum PropertyHint {
 	PROPERTY_HINT_ONESHOT, ///< the property will be changed by self after setting, such as AudioStreamPlayer.playing, Particles.emitting.
 	PROPERTY_HINT_NO_NODEPATH, /// < this property will not contain a NodePath, regardless of type (Array, Dictionary, List, etc.). Needed for SceneTreeDock.
 	PROPERTY_HINT_GROUP_ENABLE, ///< used to make the property's group checkable. Only use for boolean types.
+	PROPERTY_HINT_INPUT_NAME,
 	PROPERTY_HINT_MAX,
 };
 

doc/classes/@GlobalScope.xml

@@ -2957,7 +2957,12 @@
 		<constant name="PROPERTY_HINT_GROUP_ENABLE" value="42" enum="PropertyHint">
 			Hints that a boolean property will enable the feature associated with the group that it occurs in. Only works within a group or subgroup.
 		</constant>
-		<constant name="PROPERTY_HINT_MAX" value="43" enum="PropertyHint">
+		<constant name="PROPERTY_HINT_INPUT_NAME" value="43" enum="PropertyHint">
+			Hints that a [String] or [StringName] property is the name of an input action. This allows the selection of any action name from the Input Map in the Project Settings. The hint string may contain two options separated by commas:
+			- If it contains [code]"show_builtin"[/code], built-in input actions are included in the selection.
+			- If it contains [code]"loose_mode"[/code], loose mode is enabled. This allows inserting any action name even if it's not present in the input map.
+		</constant>
+		<constant name="PROPERTY_HINT_MAX" value="44" enum="PropertyHint">
 			Represents the size of the [enum PropertyHint] enum.
 		</constant>
 		<constant name="PROPERTY_USAGE_NONE" value="0" enum="PropertyUsageFlags" is_bitfield="true">

editor/editor_properties.cpp

@@ -31,6 +31,7 @@
 #include "editor_properties.h"
 
 #include "core/config/project_settings.h"
+#include "core/input/input_map.h"
 #include "editor/create_dialog.h"
 #include "editor/editor_node.h"
 #include "editor/editor_properties_array_dict.h"
@@ -3570,6 +3571,38 @@ static EditorPropertyRangeHint _parse_range_hint(PropertyHint p_hint, const Stri
 	return hint;
 }
 
+static EditorProperty *get_input_action_editor(const String &p_hint_text, bool is_string_name) {
+	// TODO: Should probably use a better editor GUI with a search bar.
+	// Said GUI could also handle showing builtin options, requiring 1 less hint.
+	EditorPropertyTextEnum *editor = memnew(EditorPropertyTextEnum);
+	Vector<String> options;
+	Vector<String> builtin_options;
+	List<PropertyInfo> pinfo;
+	ProjectSettings::get_singleton()->get_property_list(&pinfo);
+	Vector<String> hints = p_hint_text.remove_char(' ').split(",", false);
+
+	HashMap<String, List<Ref<InputEvent>>> builtins = InputMap::get_singleton()->get_builtins();
+	bool show_builtin = hints.has("show_builtin");
+
+	for (const PropertyInfo &pi : pinfo) {
+		if (!pi.name.begins_with("input/")) {
+			continue;
+		}
+
+		const String action_name = pi.name.get_slicec('/', 1);
+		if (builtins.has(action_name)) {
+			if (show_builtin) {
+				builtin_options.append(action_name);
+			}
+		} else {
+			options.append(action_name);
+		}
+	}
+	options.append_array(builtin_options);
+	editor->setup(options, is_string_name, hints.has("loose_mode"));
+	return editor;
+}
+
 EditorProperty *EditorInspectorDefaultPlugin::get_editor_for_property(Object *p_object, const Variant::Type p_type, const String &p_path, const PropertyHint p_hint, const String &p_hint_text, const BitField<PropertyUsageFlags> p_usage, const bool p_wide) {
 	double default_float_step = EDITOR_GET("interface/inspector/default_float_step");
 
@@ -3680,6 +3713,8 @@ EditorProperty *EditorInspectorDefaultPlugin::get_editor_for_property(Object *p_
 				Vector<String> options = p_hint_text.split(",", false);
 				editor->setup(options, false, (p_hint == PROPERTY_HINT_ENUM_SUGGESTION));
 				return editor;
+			} else if (p_hint == PROPERTY_HINT_INPUT_NAME) {
+				return get_input_action_editor(p_hint_text, false);
 			} else if (p_hint == PROPERTY_HINT_MULTILINE_TEXT) {
 				EditorPropertyMultilineText *editor = memnew(EditorPropertyMultilineText);
 				return editor;
@@ -3832,6 +3867,8 @@ EditorProperty *EditorInspectorDefaultPlugin::get_editor_for_property(Object *p_
 				Vector<String> options = p_hint_text.split(",", false);
 				editor->setup(options, true, (p_hint == PROPERTY_HINT_ENUM_SUGGESTION));
 				return editor;
+			} else if (p_hint == PROPERTY_HINT_INPUT_NAME) {
+				return get_input_action_editor(p_hint_text, true);
 			} else {
 				EditorPropertyText *editor = memnew(EditorPropertyText);
 				if (p_hint == PROPERTY_HINT_PLACEHOLDER_TEXT) {

modules/gdscript/tests/scripts/utils.notest.gd

@@ -206,6 +206,8 @@ static func get_property_hint_name(hint: PropertyHint) -> String:
 			return "PROPERTY_HINT_PASSWORD"
 		PROPERTY_HINT_TOOL_BUTTON:
 			return "PROPERTY_HINT_TOOL_BUTTON"
+		PROPERTY_HINT_INPUT_NAME:
+			return "PROPERTY_HINT_INPUT_NAME"
 
 	printerr("Argument `hint` is invalid. Use `PROPERTY_HINT_*` constants.")
 	return "<invalid hint>"

scene/2d/physics/touch_screen_button.cpp

@@ -438,7 +438,7 @@ void TouchScreenButton::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "shape_centered"), "set_shape_centered", "is_shape_centered");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "shape_visible"), "set_shape_visible", "is_shape_visible");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "passby_press"), "set_passby_press", "is_passby_press_enabled");
-	ADD_PROPERTY(PropertyInfo(Variant::STRING_NAME, "action"), "set_action", "get_action");
+	ADD_PROPERTY(PropertyInfo(Variant::STRING_NAME, "action", PROPERTY_HINT_INPUT_NAME, "show_builtin,loose_mode"), "set_action", "get_action");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "visibility_mode", PROPERTY_HINT_ENUM, "Always,TouchScreen Only"), "set_visibility_mode", "get_visibility_mode");
 
 	ADD_SIGNAL(MethodInfo("pressed"));