Allow unpausing with keys bound to pause.

Core/KeyMap.h

@@ -219,4 +219,4 @@ namespace KeyMap {
 	bool IsKeyMapped(InputDeviceID device, int key);
 
 	bool HasChanged(int &prevGeneration);
-}
+}  // namespace KeyMap

UI/PauseScreen.cpp

@@ -32,6 +32,7 @@
 #include "Common/VR/PPSSPPVR.h"
 #include "Common/UI/AsyncImageFileView.h"
 
+#include "Core/KeyMap.h"
 #include "Core/Reporting.h"
 #include "Core/SaveState.h"
 #include "Core/System.h"
@@ -271,6 +272,24 @@ GamePauseScreen::~GamePauseScreen() {
 	__DisplaySetWasPaused();
 }
 
+bool GamePauseScreen::key(const KeyInput &key) {
+	if (!UIScreen::key(key) && (key.flags & KEY_DOWN)) {
+		// Special case to be able to unpause with a bound pause key.
+		// Normally we can't bind keys used in the UI.
+		InputMapping mapping(key.deviceId, key.keyCode);
+		std::vector<int> pspButtons;
+		KeyMap::InputMappingToPspButton(mapping, &pspButtons);
+		for (auto button : pspButtons) {
+			if (button == VIRTKEY_PAUSE) {
+				TriggerFinish(DR_CANCEL);
+				return true;
+			}
+		}
+		return false;
+	}
+	return false;
+}
+
 void GamePauseScreen::CreateSavestateControls(UI::LinearLayout *leftColumnItems, bool vertical) {
 	auto pa = GetI18NCategory(I18NCat::PAUSE);
 

UI/PauseScreen.h

@@ -36,6 +36,7 @@ public:
 	~GamePauseScreen();
 
 	void dialogFinished(const Screen *dialog, DialogResult dr) override;
+	bool key(const KeyInput &key) override;
 
 	const char *tag() const override { return "GamePause"; }