private String getParentDir(String path) {
try {
path = new URI(Util.PathToURI(path + "/..")).normalize().getPath();
} catch (URISyntaxException e) {
e.printStackTrace();
}
return Util.stripTrailingSlash(path);
}
public boolean browse(String directoryName) {
if (this.mCurrentDir == null) {
// We're on the storage list
String storages[] = Util.getMediaDirectories();
for (String storage : storages) {
storage = Util.stripTrailingSlash(storage);
if (storage.endsWith(directoryName)) {
this.mCurrentRoot = storage;
this.mCurrentDir = storage;
this.mCurrentDir = Util.stripTrailingSlash(this.mCurrentDir);
break;
}
}
} else {
try {
this.mCurrentDir =
new URI(Util.PathToURI(this.mCurrentDir + "/" + directoryName)).normalize().getPath();
this.mCurrentDir = Util.stripTrailingSlash(this.mCurrentDir);
if (this.mCurrentDir.equals(getParentDir(this.mCurrentRoot))) {
// Returning on the storage list
this.mCurrentDir = null;
this.mCurrentRoot = null;
}
} catch (URISyntaxException e) {
Log.e(TAG, "URISyntaxException in browse()", e);
return false;
} catch (NullPointerException e) {
Log.e(TAG, "NullPointerException in browse()", e);
return false;
}
}
Log.d(TAG, "Browsing to " + this.mCurrentDir);
if (directoryName.equals("..")) this.mCurrentNode = this.mCurrentNode.parent;
else {
this.mCurrentNode = this.mCurrentNode.getChildNode(directoryName);
if (mCurrentNode.subfolderCount() < 1) {
// Clear the ".." entry
this.mCurrentNode.children.clear();
this.populateNode(mCurrentNode, mCurrentDir);
}
}
this.notifyDataSetChanged();
return true;
}
public String getMediaLocation(int position) {
if (position >= mCurrentNode.children.size()) return null;
return Util.PathToURI(this.mCurrentDir + "/" + mCurrentNode.children.get(position).name);
}