fix: changing Shortcuts.kts logic to use HashableKeys. (#1616) (#1619) (

#1620)

* As the ShortcutRegistration will always use HashableKeys, hence why we need to use it in our tests as well to not have any differences
between our tests and real-life application. (now we used simple Key objects, but we need to use HashableKeys)

* Cleaned up the code a bit to use the HashableKey creation only in the MockFilterJsonObject class.
(Based on @mcollovati  review, thank you)

* Put the getHashableKey() method into the class (mock JSON), so where we use it (suggestion by @mcollovati, thanks!).

* One more time, even nicer this way, like this one :) (Thanks again @mcollovati)

* Revert GridTester changes, and fix java doc for the newly added getHashableKey() method, fix imports.

* Using a bit more Kotlinish syntax for reflection (private inner class constructor), and being more strict on that we are using ShortcutRegistration class. (discussed with @mcollovati that this could be a better way)

* Enabling Shortcut related tests (were disabled by another dependency FIX pr to merge it to master)

(cherry picked from commit baf3886)

Co-authored-by: czp13 <61667986+czp13@users.noreply.github.com>

vaadin-testbench-unit/src/main/kotlin/com/vaadin/testbench/unit/internal/Shortcuts.kt

@@ -2,7 +2,6 @@ package com.vaadin.testbench.unit.internal
 
 import com.vaadin.flow.component.Component
 import com.vaadin.flow.component.Key
-import com.vaadin.flow.component.KeyModifier
 import com.vaadin.flow.component.ShortcutRegistration
 import elemental.json.impl.JreJsonFactory
 import elemental.json.impl.JreJsonObject
@@ -12,17 +11,30 @@ import elemental.json.impl.JreJsonObject
  * If this stuff stops working, place a breakpoint into the [getBoolean]/[hasKey] function,
  * to see what kind of keys you're receiving and whether it matches [filter].
  */
-private class MockFilterJsonObject(val key: Key, val modifiers: Set<KeyModifier>) : JreJsonObject(JreJsonFactory()) {
+private class MockFilterJsonObject(val key: Key, val modifiers: Set<Key>) : JreJsonObject(JreJsonFactory()) {
  val filter: String
  init {
+
  // compute the filter
  filter = mgenerateEventKeyFilter.invoke(null, key).toString() + " && " +
- mgenerateEventModifierFilter.invoke(null, modifiers).toString()
+ // we call the private method with Hashable keys implementations as the ShortcutRegistration class is
+ // called by these objects/classes in regular cases.
+ mgenerateEventModifierFilter.invoke(null, modifiers.map { getHashableKey(it)}).toString()
 
  // populate the json object so that KeyDownEvent can be created from it
  put("event.key", key.keys.first())
  }
 
+ /**
+ * Returns a HashableKey instance for the given key modifier.
+ * @param keyModifier the key modifier
+ * @return the HashableKey instance
+ *
+ */
+ private fun getHashableKey(keyModifier: Key): Any? {
+ return chashableKey.newInstance(keyModifier)
+ }
+
  override fun hasKey(key: String): Boolean {
  // the "key" is a JavaScript expression which matches the key pressed.
  // we need to match it against the 'filter'
@@ -54,9 +66,14 @@ private class MockFilterJsonObject(val key: Key, val modifiers: Set<KeyModifier>
  companion object {
  private val mgenerateEventKeyFilter = ShortcutRegistration::class.java.getDeclaredMethod("generateEventKeyFilter", Key::class.java)
  private val mgenerateEventModifierFilter = ShortcutRegistration::class.java.getDeclaredMethod("generateEventModifierFilter", Collection::class.java)
+ private val chashableKey = ShortcutRegistration::class.java
+ .classLoader
+ .loadClass("com.vaadin.flow.component.ShortcutRegistration\$HashableKey")
+ .declaredConstructors[0]
  init {
  mgenerateEventKeyFilter.isAccessible = true
  mgenerateEventModifierFilter.isAccessible = true
+ chashableKey.isAccessible = true
  }
  }
 }
@@ -86,8 +103,7 @@ public fun Component._fireShortcut(key: Key, vararg modifiers: Key) {
  // contains a boolean value with key 'filter'. We need to fake the json object
  // as if it contained all filters (otherwise `matchesFilter()` would NPE on missing key)
  // and respond true only to the matching filter.
- @Suppress("UNCHECKED_CAST")
- val data = MockFilterJsonObject(key, modifiers.toSet() as Set<KeyModifier>)
+ val data = MockFilterJsonObject(key, modifiers.toSet())
 
  // the shortcut registration is only updated in [UI.beforeClientResponse]; run the registration code now.
  MockVaadin.clientRoundtrip()