Added the ability to move passwords around. (#210)

* Added the ability to move passwords around.
* Generified the PasswordRecyclerAdapter and the FolderRecyclerAdapter into EntryRecyclerAdapter

1 files changed, 227 insertions, 0 deletions

diff --git a/app/src/main/java/com/zeapo/pwdstore/SelectFolderFragment.java b/app/src/main/java/com/zeapo/pwdstore/SelectFolderFragment.java
new file mode 100644
index 00000000..c9bc3596
--- /dev/null
+++ b/app/src/main/java/com/zeapo/pwdstore/SelectFolderFragment.java
@@ -0,0 +1,227 @@
+package com.zeapo.pwdstore;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.preference.PreferenceManager;
+import android.support.design.widget.FloatingActionButton;
+import android.support.v4.app.Fragment;
+import android.support.v7.app.AppCompatActivity;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.zeapo.pwdstore.crypto.PgpHandler;
+import com.zeapo.pwdstore.utils.FolderRecyclerAdapter;
+import com.zeapo.pwdstore.utils.PasswordItem;
+import com.zeapo.pwdstore.utils.PasswordRepository;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.Stack;
+
+/**
+ * A fragment representing a list of Items.
+ * <p />
+ * Large screen devices (such as tablets) are supported by replacing the ListView
+ * with a GridView.
+ * <p />
+ */
+public class SelectFolderFragment extends Fragment{
+
+    public interface OnFragmentInteractionListener {
+        public void onFragmentInteraction(PasswordItem item);
+    }
+
+    // store the pass files list in a stack
+    private Stack<ArrayList<PasswordItem>> passListStack;
+    private Stack<File> pathStack;
+    private Stack<Integer> scrollPosition;
+    private FolderRecyclerAdapter recyclerAdapter;
+    private RecyclerView recyclerView;
+    private RecyclerView.LayoutManager mLayoutManager;
+    private OnFragmentInteractionListener mListener;
+    private SharedPreferences settings;
+
+    /**
+     * Mandatory empty constructor for the fragment manager to instantiate the
+     * fragment (e.g. upon screen orientation changes).
+     */
+    public SelectFolderFragment() {   }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        String path = getArguments().getString("Path");
+
+        settings = PreferenceManager.getDefaultSharedPreferences(getActivity());
+        passListStack = new Stack<ArrayList<PasswordItem>>();
+        scrollPosition = new Stack<Integer>();
+        pathStack = new Stack<File>();
+        recyclerAdapter = new FolderRecyclerAdapter((PgpHandler) getActivity(), mListener,
+                                                      PasswordRepository.getPasswords(new File(path), PasswordRepository.getRepositoryDirectory(getActivity())));
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        View view = inflater.inflate(R.layout.password_recycler_view, container, false);
+
+        // use a linear layout manager
+        mLayoutManager = new LinearLayoutManager(getActivity());
+
+        recyclerView = (RecyclerView) view.findViewById(R.id.pass_recycler);
+        recyclerView.setLayoutManager(mLayoutManager);
+
+        // use divider
+        recyclerView.addItemDecoration(new DividerItemDecoration(getActivity(), R.drawable.divider));
+
+        // Set the adapter
+        recyclerView.setAdapter(recyclerAdapter);
+
+        final FloatingActionButton fab = (FloatingActionButton) view.findViewById(R.id.fab);
+        fab.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                ((PasswordStore) getActivity()).createPassword();
+            }
+        });
+
+        registerForContextMenu(recyclerView);
+        return view;
+    }
+
+    @Override
+    public void onAttach(final Context context) {
+        super.onAttach(context);
+        try {
+            mListener = new OnFragmentInteractionListener() {
+                public void onFragmentInteraction(PasswordItem item) {
+                    if (item.getType() == PasswordItem.TYPE_CATEGORY) {
+                        // push the current password list (non filtered plz!)
+                        passListStack.push(pathStack.isEmpty() ?
+                                                PasswordRepository.getPasswords(PasswordRepository.getRepositoryDirectory(context)) :
+                                                PasswordRepository.getPasswords(pathStack.peek(), PasswordRepository.getRepositoryDirectory(context)));
+                        //push the category were we're going
+                        pathStack.push(item.getFile());
+                        scrollPosition.push(recyclerView.getVerticalScrollbarPosition());
+
+                        recyclerView.scrollToPosition(0);
+                        recyclerAdapter.clear();
+                        recyclerAdapter.addAll(PasswordRepository.getPasswords(item.getFile(), PasswordRepository.getRepositoryDirectory(context)));
+
+                        ((AppCompatActivity) getActivity()).getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+                    }
+                }
+
+                public void savePosition(Integer position) {
+
+                }
+            };
+        } catch (ClassCastException e) {
+            throw new ClassCastException(context.toString()
+                + " must implement OnFragmentInteractionListener");
+        }
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+//        mListener.savePosition(mListView.getFirstVisiblePosition());
+//        mListView.closeOpenedItems();
+    }
+
+    /**
+     * clears the adapter content and sets it back to the root view
+     */
+    public void updateAdapter() {
+        passListStack.clear();
+        pathStack.clear();
+        scrollPosition.clear();
+        recyclerAdapter.clear();
+        recyclerAdapter.addAll(PasswordRepository.getPasswords(PasswordRepository.getRepositoryDirectory(getActivity())));
+
+        ((AppCompatActivity) getActivity()).getSupportActionBar().setDisplayHomeAsUpEnabled(false);
+    }
+
+    /**
+     * refreshes the adapter with the latest opened category
+     */
+    public void refreshAdapter() {
+        recyclerAdapter.clear();
+        recyclerAdapter.addAll(pathStack.isEmpty() ?
+                                        PasswordRepository.getPasswords(PasswordRepository.getRepositoryDirectory(getActivity())) :
+                                        PasswordRepository.getPasswords(pathStack.peek(), PasswordRepository.getRepositoryDirectory(getActivity())));
+    }
+
+    /**
+     * filters the list adapter
+     * @param filter the filter to apply
+     */
+    public void filterAdapter(String filter) {
+        Log.d("FRAG", "filter: " + filter);
+
+        if (filter.isEmpty()) {
+            refreshAdapter();
+        } else {
+            recursiveFilter(filter, pathStack.isEmpty() ? null : pathStack.peek());
+        }
+    }
+
+    /**
+     * recursively filters a directory and extract all the matching items
+     * @param filter the filter to apply
+     * @param dir the directory to filter
+     */
+    private void recursiveFilter(String filter, File dir) {
+        // on the root the pathStack is empty
+        ArrayList<PasswordItem> passwordItems = dir == null ?
+                PasswordRepository.getPasswords(PasswordRepository.getRepositoryDirectory(getActivity())) :
+                PasswordRepository.getPasswords(dir, PasswordRepository.getRepositoryDirectory(getActivity()));
+
+        boolean rec = settings.getBoolean("filter_recursively", true);
+        for (PasswordItem item : passwordItems) {
+            if (item.getType() == PasswordItem.TYPE_CATEGORY && rec) {
+                recursiveFilter(filter, item.getFile());
+            }
+            boolean matches = item.toString().toLowerCase().contains(filter.toLowerCase());
+            boolean inAdapter = recyclerAdapter.getValues().contains(item);
+            if (matches && !inAdapter) {
+                recyclerAdapter.add(item);
+            } else if (!matches && inAdapter) {
+                recyclerAdapter.remove(recyclerAdapter.getValues().indexOf(item));
+            }
+        }
+    }
+
+    /**
+     * Goes back one level back in the path
+     */
+    public void popBack() {
+        if (passListStack.isEmpty())
+            return;
+
+        recyclerView.scrollToPosition(scrollPosition.pop());
+        recyclerAdapter.clear();
+        recyclerAdapter.addAll(passListStack.pop());
+        pathStack.pop();
+    }
+
+    /**
+     * gets the current directory
+     * @return the current directory
+     */
+    public File getCurrentDir() {
+        if (pathStack.isEmpty())
+            return PasswordRepository.getWorkTree();
+        else
+            return pathStack.peek();
+    }
+
+    public boolean isNotEmpty() {
+        return !passListStack.isEmpty();
+    }
+}