(iOS) Implement get_powerstate

apple/iOS/platform.m

@@ -65,6 +65,41 @@ void apple_rarch_exited(void)
 
 apple_frontend_settings_t apple_frontend_settings;
 
+enum frontend_powerstate ios_get_powerstate(int *seconds, int *percent)
+{
+    float level;
+    enum frontend_powerstate ret = FRONTEND_POWERSTATE_NONE;
+    UIDevice *uidev = [UIDevice currentDevice];
+    
+    if (!uidev)
+        return ret;
+    
+    [uidev setBatteryMonitoringEnabled:true];
+    
+    switch (uidev.batteryState)
+    {
+        case UIDeviceBatteryStateCharging:
+            ret = FRONTEND_POWERSTATE_CHARGING;
+            break;
+        case UIDeviceBatteryStateFull:
+            ret = FRONTEND_POWERSTATE_CHARGED;
+            break;
+        case UIDeviceBatteryStateUnplugged:
+            ret = FRONTEND_POWERSTATE_ON_POWER_SOURCE;
+            break;
+        case UIDeviceBatteryStateUnknown:
+            break;
+    }
+    
+    level = uidev.batteryLevel;
+    
+    *percent = ((level < 0.0f) ? -1 : ((int)((level * 100) + 0.5f)));
+
+    [uidev setBatteryMonitoringEnabled:false];
+    
+    return ret;
+}
+
 void get_ios_version(int *major, int *minor)
 {
     NSArray *decomposed_os_version = [[UIDevice currentDevice].systemVersion componentsSeparatedByString:@"."];

frontend/drivers/platform_apple.c

@@ -33,10 +33,12 @@
 
 #if defined(IOS)
 void get_ios_version(int *major, int *minor);
+
+enum frontend_powerstate ios_get_powerstate(int *seconds, int *percent);
 #endif
 
 #if defined(OSX)
-/* Carbon is so verbose... */
+
 #define PMGMT_STRMATCH(a,b) (CFStringCompare(a, b, 0) == kCFCompareEqualTo)
 #define PMGMT_GETVAL(k,v)   CFDictionaryGetValueIfPresent(dict, CFSTR(k), (const void **) v)
 
@@ -456,7 +458,8 @@ static enum frontend_powerstate frontend_apple_get_powerstate(int *seconds, int
 end:
    if (blob)
       CFRelease(blob);
-
+#elif defined(IOS)
+   ret = ios_get_powerstate(seconds, percent);
 #endif
    return ret;
 }