From a0ba4eb569ae9ec0e05a7ba8532ab304e6852f84 Mon Sep 17 00:00:00 2001
From: Tarek Soliman
Date: Fri, 17 Feb 2012 17:08:58 -0600
Subject: KEYMAPPER: Rewrite the EventMapper API

---
 backends/keymapper/keymapper.cpp | 45 +++++++++++++++++++---------------------
 backends/keymapper/keymapper.h   | 25 ++++++++--------------
 2 files changed, 30 insertions(+), 40 deletions(-)

(limited to 'backends')

diff --git a/backends/keymapper/keymapper.cpp b/backends/keymapper/keymapper.cpp
index cda34ff052..7ada676516 100644
--- a/backends/keymapper/keymapper.cpp
+++ b/backends/keymapper/keymapper.cpp
@@ -180,38 +180,35 @@ void Keymapper::popKeymap(const char *name) {
 
 }
 
-bool Keymapper::notifyEvent(const Common::Event &ev) {
-	bool mapped = false;
+List<Event> Keymapper::mapEvent(const Event &ev, EventSource *source) {
+	if (source && !source->allowMapping()) {
+		return DefaultEventMapper::mapEvent(ev, source);
+	}
+
+	List<Event> mappedEvents;
 
 	if (ev.type == Common::EVENT_KEYDOWN)
-		mapped = mapKeyDown(ev.kbd);
+		mappedEvents = mapKeyDown(ev.kbd);
 	else if (ev.type == Common::EVENT_KEYUP)
-		mapped = mapKeyUp(ev.kbd);
+		mappedEvents = mapKeyUp(ev.kbd);
 
-	if (mapped)
-		return true;
+	if (!mappedEvents.empty())
+		return mappedEvents;
 	else
-		return mapEvent(ev);
-}
-
-bool Keymapper::mapEvent(const Common::Event &ev) {
-	// pass through - copy the event
-	Event evt = ev;
-	addEvent(evt);
-	return true;
+		return DefaultEventMapper::mapEvent(ev, source);
 }
 
-bool Keymapper::mapKeyDown(const KeyState& key) {
+List<Event> Keymapper::mapKeyDown(const KeyState& key) {
 	return mapKey(key, true);
 }
 
-bool Keymapper::mapKeyUp(const KeyState& key) {
+List<Event> Keymapper::mapKeyUp(const KeyState& key) {
 	return mapKey(key, false);
 }
 
-bool Keymapper::mapKey(const KeyState& key, bool keyDown) {
+List<Event> Keymapper::mapKey(const KeyState& key, bool keyDown) {
 	if (!_enabled || _activeMaps.empty())
-		return false;
+		return List<Event>();
 
 	Action *action = 0;
 
@@ -238,11 +235,9 @@ bool Keymapper::mapKey(const KeyState& key, bool keyDown) {
 	}
 
 	if (!action)
-		return false;
+		return List<Event>();
 
-	executeAction(action, keyDown);
-
-	return true;
+	return executeAction(action, keyDown);
 }
 
 Action *Keymapper::getAction(const KeyState& key) {
@@ -251,7 +246,8 @@ Action *Keymapper::getAction(const KeyState& key) {
 	return action;
 }
 
-void Keymapper::executeAction(const Action *action, bool keyDown) {
+List<Event> Keymapper::executeAction(const Action *action, bool keyDown) {
+	List<Event> mappedEvents;
 	List<Event>::const_iterator it;
 
 	for (it = action->events.begin(); it != action->events.end(); ++it) {
@@ -291,8 +287,9 @@ void Keymapper::executeAction(const Action *action, bool keyDown) {
 		}
 
 		evt.mouse = _eventMan->getMousePos();
-		addEvent(evt);
+		mappedEvents.push_back(evt);
 	}
+	return mappedEvents;
 }
 
 const HardwareKey *Keymapper::findHardwareKey(const KeyState& key) {
diff --git a/backends/keymapper/keymapper.h b/backends/keymapper/keymapper.h
index 626df013ac..31bfcbc080 100644
--- a/backends/keymapper/keymapper.h
+++ b/backends/keymapper/keymapper.h
@@ -39,7 +39,7 @@ namespace Common {
 const char *const kGuiKeymapName = "gui";
 const char *const kGlobalKeymapName = "global";
 
-class Keymapper : public Common::EventMapper, private Common::ArtificialEventSource {
+class Keymapper : public Common::DefaultEventMapper {
 public:
 
 	struct MapRecord {
@@ -77,6 +77,9 @@ public:
 	Keymapper(EventManager *eventMan);
 	~Keymapper();
 
+	// EventMapper interface
+	virtual List<Event> mapEvent(const Event &ev, EventSource *source);
+
 	/**
 	 * Registers a HardwareKeySet with the Keymapper
 	 * @note should only be called once (during backend initialisation)
@@ -137,37 +140,27 @@ public:
 	 */
 	void popKeymap(const char *name = 0);
 
-	// Implementation of the EventMapper interface
-	bool notifyEvent(const Common::Event &ev);
-	bool pollEvent(Common::Event &ev) { return Common::ArtificialEventSource::pollEvent(ev); }
-
 	/**
 	 * @brief Map a key press event.
 	 * If the active keymap contains a Action mapped to the given key, then
 	 * the Action's events are pushed into the EventManager's event queue.
 	 * @param key		key that was pressed
 	 * @param keyDown	true for key down, false for key up
-	 * @return			true if key was mapped
+	 * @return			mapped events
 	 */
-	bool mapKey(const KeyState& key, bool keyDown);
+	List<Event> mapKey(const KeyState& key, bool keyDown);
 
 	/**
 	 * @brief Map a key down event.
 	 * @see mapKey
 	 */
-	bool mapKeyDown(const KeyState& key);
+	List<Event> mapKeyDown(const KeyState& key);
 
 	/**
 	 * @brief Map a key up event.
 	 * @see mapKey
 	 */
-	bool mapKeyUp(const KeyState& key);
-
-	/**
-	 * Map non-key incoming events
-	 * @param ev incoming event
-	 */
-	bool mapEvent(const Common::Event &ev);
+	List<Event> mapKeyUp(const KeyState& key);
 
 	/**
 	 * Enable/disable the keymapper
@@ -195,7 +188,7 @@ private:
 	void pushKeymap(Keymap *newMap, bool transparent, bool global);
 
 	Action *getAction(const KeyState& key);
-	void executeAction(const Action *act, bool keyDown);
+	List<Event> executeAction(const Action *act, bool keyDown);
 
 	EventManager *_eventMan;
 
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