Add logic to parse previewImage from dreams. (73300b8a) · Commits · e / os / android_frameworks_base

packages/SettingsLib/src/com/android/settingslib/dream/DreamBackend.java

+59 −30

Original line number	Diff line number	Diff line
		@@ -17,6 +17,7 @@
		package com.android.settingslib.dream;

		import android.annotation.IntDef;
		import android.annotation.Nullable;
		import android.content.ComponentName;
		import android.content.Context;
		import android.content.Intent;
		@@ -59,6 +60,7 @@ public class DreamBackend {
		public ComponentName componentName;
		public ComponentName settingsComponentName;
		public CharSequence description;
		public Drawable previewImage;

		@Override
		public String toString() {
		@@ -120,15 +122,22 @@ public class DreamBackend {
		PackageManager.GET_META_DATA);
		List<DreamInfo> dreamInfos = new ArrayList<>(resolveInfos.size());
		for (ResolveInfo resolveInfo : resolveInfos) {
		if (resolveInfo.serviceInfo == null)
		if (resolveInfo.serviceInfo == null) {
		continue;
		}
		DreamInfo dreamInfo = new DreamInfo();
		dreamInfo.caption = resolveInfo.loadLabel(pm);
		dreamInfo.icon = resolveInfo.loadIcon(pm);
		dreamInfo.description = getDescription(resolveInfo, pm);
		dreamInfo.componentName = getDreamComponentName(resolveInfo);
		dreamInfo.isActive = dreamInfo.componentName.equals(activeDream);
		dreamInfo.settingsComponentName = getSettingsComponentName(pm, resolveInfo);

		final DreamMetadata dreamMetadata = getDreamMetadata(pm, resolveInfo);
		if (dreamMetadata != null) {
		dreamInfo.settingsComponentName = dreamMetadata.mSettingsActivity;
		dreamInfo.previewImage = dreamMetadata.mPreviewImage;
		}

		dreamInfos.add(dreamInfo);
		}
		Collections.sort(dreamInfos, mComparator);
		@@ -325,58 +334,78 @@ public class DreamBackend {
		}

		private static ComponentName getDreamComponentName(ResolveInfo resolveInfo) {
		if (resolveInfo == null \|\| resolveInfo.serviceInfo == null)
		if (resolveInfo == null \|\| resolveInfo.serviceInfo == null) {
		return null;
		}
		return new ComponentName(resolveInfo.serviceInfo.packageName, resolveInfo.serviceInfo.name);
		}

		private static ComponentName getSettingsComponentName(PackageManager pm, ResolveInfo resolveInfo) {
		if (resolveInfo == null
		\|\| resolveInfo.serviceInfo == null
		\|\| resolveInfo.serviceInfo.metaData == null)
		private static final class DreamMetadata {
		@Nullable
		Drawable mPreviewImage;
		@Nullable
		ComponentName mSettingsActivity;
		}

		@Nullable
		private static TypedArray readMetadata(PackageManager pm, ServiceInfo serviceInfo) {
		if (serviceInfo == null \|\| serviceInfo.metaData == null) {
		return null;
		String cn = null;
		XmlResourceParser parser = null;
		Exception caughtException = null;
		try {
		parser = resolveInfo.serviceInfo.loadXmlMetaData(pm, DreamService.DREAM_META_DATA);
		}
		try (XmlResourceParser parser =
		serviceInfo.loadXmlMetaData(pm, DreamService.DREAM_META_DATA)) {
		if (parser == null) {
		Log.w(TAG, "No " + DreamService.DREAM_META_DATA + " meta-data");
		return null;
		}
		Resources res = pm.getResourcesForApplication(resolveInfo.serviceInfo.applicationInfo);
		Resources res = pm.getResourcesForApplication(serviceInfo.applicationInfo);
		AttributeSet attrs = Xml.asAttributeSet(parser);
		int type;
		while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
		&& type != XmlPullParser.START_TAG) {
		while (true) {
		final int type = parser.next();
		if (type == XmlPullParser.END_DOCUMENT \|\| type == XmlPullParser.START_TAG) {
		break;
		}
		}
		String nodeName = parser.getName();
		if (!"dream".equals(nodeName)) {
		Log.w(TAG, "Meta-data does not start with dream tag");
		return null;
		}
		TypedArray sa = res.obtainAttributes(attrs, com.android.internal.R.styleable.Dream);
		cn = sa.getString(com.android.internal.R.styleable.Dream_settingsActivity);
		sa.recycle();
		return res.obtainAttributes(attrs, com.android.internal.R.styleable.Dream);
		} catch (PackageManager.NameNotFoundException \| IOException \| XmlPullParserException e) {
		caughtException = e;
		} finally {
		if (parser != null) parser.close();
		}
		if (caughtException != null) {
		Log.w(TAG, "Error parsing : " + resolveInfo.serviceInfo.packageName, caughtException);
		Log.w(TAG, "Error parsing : " + serviceInfo.packageName, e);
		return null;
		}
		if (cn != null && cn.indexOf('/') < 0) {
		cn = resolveInfo.serviceInfo.packageName + "/" + cn;
		}
		return cn == null ? null : ComponentName.unflattenFromString(cn);

		private static ComponentName convertToComponentName(String flattenedString,
		ServiceInfo serviceInfo) {
		if (flattenedString == null) return null;

		if (flattenedString.indexOf('/') < 0) {
		flattenedString = serviceInfo.packageName + "/" + flattenedString;
		}
		return ComponentName.unflattenFromString(flattenedString);
		}

		private static DreamMetadata getDreamMetadata(PackageManager pm, ResolveInfo resolveInfo) {
		DreamMetadata result = new DreamMetadata();
		if (resolveInfo == null) return result;
		TypedArray rawMetadata = readMetadata(pm, resolveInfo.serviceInfo);
		if (rawMetadata == null) return result;
		result.mSettingsActivity = convertToComponentName(rawMetadata.getString(
		com.android.internal.R.styleable.Dream_settingsActivity), resolveInfo.serviceInfo);
		result.mPreviewImage = rawMetadata.getDrawable(
		com.android.internal.R.styleable.Dream_previewImage);
		rawMetadata.recycle();
		return result;
		}

		private static void logd(String msg, Object... args) {
		if (DEBUG)
		if (DEBUG) {
		Log.d(TAG, args == null \|\| args.length == 0 ? msg : String.format(msg, args));
		}
		}

		private static class DreamInfoComparator implements Comparator<DreamInfo> {
		private final ComponentName mDefaultDream;