resources: initial version of .arsc file decode

jadx-gui/src/main/java/jadx/gui/treemodel/JResource.java

@@ -1,8 +1,10 @@
 package jadx.gui.treemodel;
 
 import jadx.api.ResourceFile;
+import jadx.api.ResourceFileContent;
 import jadx.api.ResourceType;
 import jadx.core.codegen.CodeWriter;
+import jadx.core.xmlgen.ResContainer;
 import jadx.gui.utils.OverlayIcon;
 import jadx.gui.utils.Utils;
 
@@ -31,6 +33,7 @@ public class JResource extends JNode implements Comparable<JResource> {
 	}
 
 	private final String name;
+	private final String shortName;
 	private final List<JResource> files = new ArrayList<JResource>(1);
 	private final JResType type;
 	private final ResourceFile resFile;
@@ -40,12 +43,18 @@ public class JResource extends JNode implements Comparable<JResource> {
 	private Map<Integer, Integer> lineMapping;
 
 	public JResource(ResourceFile resFile, String name, JResType type) {
+		this(resFile, name, name, type);
+	}
+
+	public JResource(ResourceFile resFile, String name, String shortName, JResType type) {
 		this.resFile = resFile;
 		this.name = name;
+		this.shortName = shortName;
 		this.type = type;
 	}
 
 	public final void update() {
+		loadContent();
 		removeAllChildren();
 		for (JResource res : files) {
 			res.update();
@@ -53,6 +62,13 @@ public class JResource extends JNode implements Comparable<JResource> {
 		}
 	}
 
+	protected void loadContent() {
+		getContent();
+		for (JResource res : files) {
+			res.loadContent();
+		}
+	}
+
 	public String getName() {
 		return name;
 	}
@@ -65,16 +81,64 @@ public class JResource extends JNode implements Comparable<JResource> {
 		if (!loaded && resFile != null && type == JResType.FILE) {
 			loaded = true;
 			if (isSupportedForView(resFile.getType())) {
-				CodeWriter cw = resFile.getContent();
-				if (cw != null) {
-					lineMapping = cw.getLineMapping();
-					content = cw.toString();
+				ResContainer rc = resFile.getContent();
+				if (rc != null) {
+					addSubFiles(rc, this, 0);
 				}
 			}
 		}
 		return content;
 	}
 
+	protected void addSubFiles(ResContainer rc, JResource root, int depth) {
+		CodeWriter cw = rc.getContent();
+		if (cw != null) {
+			if (depth == 0) {
+				root.lineMapping = cw.getLineMapping();
+				root.content = cw.toString();
+			} else {
+				String name = rc.getName();
+				String[] path = name.split("/");
+				String shortName = path.length == 0 ? name : path[path.length - 1];
+				ResourceFileContent fileContent = new ResourceFileContent(shortName, ResourceType.XML, cw);
+				addPath(path, root, new JResource(fileContent, name, shortName, JResType.FILE));
+			}
+		}
+		List<ResContainer> subFiles = rc.getSubFiles();
+		if (!subFiles.isEmpty()) {
+			for (ResContainer subFile : subFiles) {
+				addSubFiles(subFile, root, depth + 1);
+			}
+		}
+	}
+
+	private static void addPath(String[] path, JResource root, JResource jResource) {
+		if (path.length == 1) {
+			root.getFiles().add(jResource);
+			return;
+		}
+		int last = path.length - 1;
+		for (int i = 0; i <= last; i++) {
+			String f = path[i];
+			if (i == last) {
+				root.getFiles().add(jResource);
+			} else {
+				root = getResDir(root, f);
+			}
+		}
+	}
+
+	private static JResource getResDir(JResource root, String dirName) {
+		for (JResource file : root.getFiles()) {
+			if (file.getName().equals(dirName)) {
+				return file;
+			}
+		}
+		JResource resDir = new JResource(null, dirName, JResType.DIR);
+		root.getFiles().add(resDir);
+		return resDir;
+	}
+
 	@Override
 	public Integer getSourceLine(int line) {
 		if (lineMapping == null) {
@@ -170,7 +234,7 @@ public class JResource extends JNode implements Comparable<JResource> {
 
 	@Override
 	public String makeString() {
-		return name;
+		return shortName;
 	}
 
 	@Override