1 files changed, 62 insertions, 0 deletions
diff --git a/source/3rd-party/SDL2/src/power/emscripten/SDL_syspower.c b/source/3rd-party/SDL2/src/power/emscripten/SDL_syspower.c
new file mode 100644
index 0000000..9b92168
--- /dev/null
+++ b/source/3rd-party/SDL2/src/power/emscripten/SDL_syspower.c
@@ -0,0 +1,62 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "../../SDL_internal.h"
+
+#ifndef SDL_POWER_DISABLED
+#if SDL_POWER_EMSCRIPTEN
+
+#include <emscripten/html5.h>
+
+#include "SDL_power.h"
+
+SDL_bool
+SDL_GetPowerInfo_Emscripten(SDL_PowerState *state, int *seconds, int *percent)
+{
+    EmscriptenBatteryEvent batteryState;
+    int haveBattery = 0;
+
+    if (emscripten_get_battery_status(&batteryState) == EMSCRIPTEN_RESULT_NOT_SUPPORTED)
+        return SDL_FALSE;
+
+    haveBattery = batteryState.level != 1.0 || !batteryState.charging || batteryState.chargingTime != 0.0;
+
+    if (!haveBattery) {
+        *state = SDL_POWERSTATE_NO_BATTERY;
+        *seconds = -1;
+        *percent = -1;
+        return SDL_TRUE;
+    }
+
+    if (batteryState.charging)
+        *state = batteryState.chargingTime == 0.0 ? SDL_POWERSTATE_CHARGED : SDL_POWERSTATE_CHARGING;
+    else
+        *state = SDL_POWERSTATE_ON_BATTERY;
+
+    *seconds = batteryState.dischargingTime;
+    *percent = batteryState.level * 100;
+
+    return SDL_TRUE;
+}
+
+#endif /* SDL_POWER_EMSCRIPTEN */
+#endif /* SDL_POWER_DISABLED */
+
+/* vi: set ts=4 sw=4 expandtab: */