Remove incomplete battery status/power API

It was initially implemented in #5871 for Godot 3.0, but never really
completed or thoroughly tested for most platforms. It then stayed in
limbo and nobody seems really keen to finish it, so it's better to
remove it in 4.0, and re-add eventually (possibly with a different API)
if there's demand and an implementation confirmed working on all
platforms.

Closes #8770.

2 files changed, 0 insertions, 24 deletions

diff --git a/core/os/os.cpp b/core/os/os.cpp
index 13be4a5c37..d1b6ccab54 100644
--- a/core/os/os.cpp
+++ b/core/os/os.cpp
@@ -586,16 +586,6 @@ bool OS::is_vsync_via_compositor_enabled() const {
 	return _vsync_via_compositor;
 }
 
-OS::PowerState OS::get_power_state() {
-	return POWERSTATE_UNKNOWN;
-}
-int OS::get_power_seconds_left() {
-	return -1;
-}
-int OS::get_power_percent_left() {
-	return -1;
-}
-
 void OS::set_has_server_feature_callback(HasServerFeatureCallback p_callback) {
 
 	has_server_feature_callback = p_callback;
diff --git a/core/os/os.h b/core/os/os.h
index 1bb910cb0d..e4661e4583 100644
--- a/core/os/os.h
+++ b/core/os/os.h
@@ -78,14 +78,6 @@ public:
 	typedef void (*ImeCallback)(void *p_inp, String p_text, Point2 p_selection);
 	typedef bool (*HasServerFeatureCallback)(const String &p_feature);
 
-	enum PowerState {
-		POWERSTATE_UNKNOWN, /**< cannot determine power status */
-		POWERSTATE_ON_BATTERY, /**< Not plugged in, running on the battery */
-		POWERSTATE_NO_BATTERY, /**< Plugged in, no battery available */
-		POWERSTATE_CHARGING, /**< Plugged in, charging battery */
-		POWERSTATE_CHARGED /**< Plugged in, battery charged */
-	};
-
 	enum RenderThreadMode {
 
 		RENDER_THREAD_UNSAFE,
@@ -517,10 +509,6 @@ public:
 	void set_vsync_via_compositor(bool p_enable);
 	bool is_vsync_via_compositor_enabled() const;
 
-	virtual OS::PowerState get_power_state();
-	virtual int get_power_seconds_left();
-	virtual int get_power_percent_left();
-
 	virtual void force_process_input(){};
 	bool has_feature(const String &p_feature);
 
@@ -542,6 +530,4 @@ public:
 	virtual ~OS();
 };
 
-VARIANT_ENUM_CAST(OS::PowerState);
-
 #endif