Allow the vendor specific initialization of display_settings.xml. (0d5e62e5) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/wm/DisplayWindowSettings.java

+26 −2

Original line number	Diff line number	Diff line
		@@ -30,6 +30,7 @@ import android.annotation.IntDef;
		import android.annotation.Nullable;
		import android.app.WindowConfiguration;
		import android.os.Environment;
		import android.os.FileUtils;
		import android.provider.Settings;
		import android.util.AtomicFile;
		import android.util.Slog;
		@@ -64,6 +65,11 @@ import java.util.HashMap;
		class DisplayWindowSettings {
		private static final String TAG = TAG_WITH_CLASS_NAME ? "DisplayWindowSettings" : TAG_WM;

		private static final String SYSTEM_DIRECTORY = "system";
		private static final String DISPLAY_SETTINGS_FILE_NAME = "display_settings.xml";
		private static final String VENDOR_DISPLAY_SETTINGS_PATH = "etc/" + DISPLAY_SETTINGS_FILE_NAME;
		private static final String WM_DISPLAY_COMMIT_TAG = "wm-displays";

		private static final int IDENTIFIER_UNIQUE_ID = 0;
		private static final int IDENTIFIER_PORT = 1;
		@IntDef(prefix = { "IDENTIFIER_" }, value = {
		@@ -688,8 +694,26 @@ class DisplayWindowSettings {
		private final AtomicFile mAtomicFile;

		AtomicFileStorage() {
		final File folder = new File(Environment.getDataDirectory(), "system");
		mAtomicFile = new AtomicFile(new File(folder, "display_settings.xml"), "wm-displays");
		final File folder = new File(Environment.getDataDirectory(), SYSTEM_DIRECTORY);
		final File settingsFile = new File(folder, DISPLAY_SETTINGS_FILE_NAME);
		// If display_settings.xml doesn't exist, try to copy the vendor's one instead
		// in order to provide the vendor specific initialization.
		if (!settingsFile.exists()) {
		copyVendorSettings(settingsFile);
		}
		mAtomicFile = new AtomicFile(settingsFile, WM_DISPLAY_COMMIT_TAG);
		}

		private static void copyVendorSettings(File target) {
		final File vendorFile = new File(Environment.getVendorDirectory(),
		VENDOR_DISPLAY_SETTINGS_PATH);
		if (vendorFile.canRead()) {
		try {
		FileUtils.copy(vendorFile, target);
		} catch (IOException e) {
		Slog.e(TAG, "Failed to copy vendor display_settings.xml");
		}
		}
		}

		@Override