donjohanliebert/device_xiaomi_sm6150-common
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davinci: parts: Restore the LED's previous state after popup

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* We are using the left led as notification LED and hence it
  could be breathing or shining while we open or close the
  camera. So we don't just set it's brightness to 0 but read
  and store the state of the LED before enabling it and
  restoring that afterwards.

* To ensure that the left LED is shining while the camera
  opens or closes we set it's breathing effect to 0 before
  enabling the LEDs.

Change-Id: Ibdfbff3072398bc77ec3257b60622cfc50e8d857
This commit is contained in:
Arian 2020-05-09 17:38:52 +02:00
parent 1db9129db8
commit 472e0182dc
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GPG Key ID: 48029380598CE3B9
2 changed files with 10 additions and 1 deletions
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1
parts/src/org/lineageos/settings/popupcamera/Constants.java
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@ -36,6 +36,7 @@ public class Constants {
public static final String OPEN_CAMERA_STATE = "1";
public static final String FRONT_CAMERA_ID = "1";
public static final String LEFT_LED_BREATH_PATH = "/sys/class/leds/left/breath";
public static final String LEFT_LED_PATH = "/sys/class/leds/left/brightness";
public static final String RIGHT_LED_PATH = "/sys/class/leds/right/brightness";
public static final String POPUP_SOUND_PATH = "/system/media/audio/ui/";

10
parts/src/org/lineageos/settings/popupcamera/PopupCameraService.java
View File

@ -278,11 +278,19 @@ public class PopupCameraService extends Service implements Handler.Callback {
private void lightUp() {
if (mPopupCameraPreferences.isLedAllowed()) {
String ledBreathing = FileUtils.readOneLine(Constants.LEFT_LED_BREATH_PATH);
String ledBrightness = FileUtils.readOneLine(Constants.LEFT_LED_PATH);
FileUtils.writeLine(Constants.LEFT_LED_BREATH_PATH, "0");
FileUtils.writeLine(Constants.LEFT_LED_PATH, "255");
FileUtils.writeLine(Constants.RIGHT_LED_PATH, "255");
mHandler.postDelayed(() -> {
FileUtils.writeLine(Constants.LEFT_LED_PATH, "0");
if (ledBreathing.equals("1")) {
FileUtils.writeLine(Constants.LEFT_LED_BREATH_PATH, ledBreathing);
} else {
FileUtils.writeLine(Constants.LEFT_LED_PATH, ledBrightness);
}
FileUtils.writeLine(Constants.RIGHT_LED_PATH, "0");
}, 1200);
}