Allow deleting of waypoints with the 'X' key (resolves #14)

CHANGELOG.md

@@ -3,6 +3,7 @@
 - Right click and spacebar can now be swapped, allowing to place waypoints with right click and removing them with spacebar
 - The module can now be configured use a fixed color instead of the player color for the first speed range
 - On gridless maps the ruler will now change it's color to indicate the different speed ranges
+- As an alternative to right click (or spacebar, if you have swapped right and spacebar behavior) waypoints can now also be deleted with the `X` key
 
 ### Bugfixes
 - Disabling snap to grid with shift now works as expected

src/main.js

@@ -8,6 +8,7 @@ Hooks.once("init", () => {
 	registerSettings()
 	hookTokenDragHandlers()
 	hookRulerFunctions()
+	hookKeyboardManagerFunctions()
 	patchRulerHighlightMeasurement()
 
 	availableSpeedProviders["native"] = nativeSpeedProvider
@@ -100,6 +101,31 @@ function hookRulerFunctions() {
 	}
 }
 
+function hookKeyboardManagerFunctions() {
+	const originalHandleKeys = KeyboardManager.prototype._handleKeys
+	KeyboardManager.prototype._handleKeys = function (event, key, up) {
+		const eventHandled = handleKeys.call(this, event, key, up)
+		if (!eventHandled)
+			originalHandleKeys.call(this, event, key, up)
+	}
+}
+
+function handleKeys(event, key, up) {
+	if (up || event.repeat || this.hasFocus)
+		return false
+
+	if (key.toLowerCase() === "x") return onKeyDownX()
+	return false
+}
+
+function onKeyDownX() {
+	if (!canvas.controls.ruler.isDragRuler)
+		return false
+
+	deleteWaypoint()
+	return true
+}
+
 function onTokenLeftDragStart(event) {
 	canvas.controls.ruler.draggedToken = this
 	const tokenCenter = {x: this.x + canvas.grid.grid.w / 2, y: this.y + canvas.grid.grid.h / 2}