installer: normalize X=confirm O=back via EnterButtonAssignment

installer/ui.c

@@ -10,6 +10,7 @@
 #include <orbis/ImeDialog.h>
 #include <orbis/UserService.h>
 #include <orbis/Sysmodule.h>
+#include <orbis/SystemService.h>
 #include <orbis/libkernel.h>
 #include <orbis/_types/user.h>
 
@@ -23,6 +24,7 @@ static void base_init(OrbisMsgDialogParam *param){
 }
 
 static int ui_ready = 0;
+static int g_cross_default = 1; /* true unless system says Circle=confirm */
 
 int ui_init(void){
     if(ui_ready) return 0;
@@ -56,6 +58,15 @@ int ui_init(void){
         sceSysmoduleUnloadModule(ORBIS_SYSMODULE_MESSAGE_DIALOG);
         return -1;
     }
+    /* The dialog's fixed mapping treats Circle as the confirm button
+     * (Japanese-style). Poll the user's Enter Button Assignment so
+     * we can invert the Yes/No interpretation and always make X
+     * confirm — the behaviour every other app on the console uses. */
+    {
+        int32_t v = 0;
+        if (sceSystemServiceParamGetInt(ORBIS_SYSTEM_SERVICE_PARAM_ID_ENTER_BUTTON_ASSIGN, &v) == 0)
+            g_cross_default = (v == ORBIS_SYSTEM_PARAM_ENTER_BUTTON_ASSIGN_CROSS);
+    }
     ui_ready = 1;
     return 0;
 }
@@ -91,8 +102,10 @@ int ui_confirm(const char *msg){
     base_init(&param);
     memset(&um, 0, sizeof um);
     um.msg = msg;
-    /* X = enter (Yes focused), O = back/decline. The default FOCUS_NO
-     * variant puts the confirm button on No, which inverts the wizard. */
+    /* Yes/No dialog. The dialog's fixed layout treats Circle as
+     * confirm and Cross as cancel (Japanese default); the user's
+     * system setting flips this. We read the assign and invert so
+     * that X always confirms — the behaviour every other app uses. */
     um.buttonType = ORBIS_MSG_DIALOG_BUTTON_TYPE_YESNO;
     param.userMsgParam = &um;
     if(sceMsgDialogOpen(&param) < 0){ sceMsgDialogTerminate(); return -1; }
@@ -101,7 +114,14 @@ int ui_confirm(const char *msg){
     sceMsgDialogClose();
     sceMsgDialogGetResult(&res);
     sceMsgDialogTerminate();
-    return res.buttonId == ORBIS_MSG_DIALOG_BUTTON_ID_YES ? 1 : 0;
+    /* Button mapping: the dialog's fixed layout treats Circle as
+     * confirm and Cross as cancel (Japanese default). The user's
+     * system setting flips this. Invert the interpretation when
+     * Circle is the system assign so that X always confirms — the
+     * behaviour every other app on the console uses. */
+    int yes = (res.buttonId == ORBIS_MSG_DIALOG_BUTTON_ID_YES)
+           ^ (g_cross_default == 0);
+    return yes ? 1 : 0;
 }
 
 static int progress_open = 0;