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, 162 insertions, 0 deletions

diff --git a/app/src/main/java/com/zeapo/pwdstore/utils/EntryRecyclerAdapter.java b/app/src/main/java/com/zeapo/pwdstore/utils/EntryRecyclerAdapter.java
new file mode 100644
index 00000000..78b81928
--- /dev/null
+++ b/app/src/main/java/com/zeapo/pwdstore/utils/EntryRecyclerAdapter.java
@@ -0,0 +1,162 @@
+package com.zeapo.pwdstore.utils;
+
+import android.app.Activity;
+import android.graphics.Color;
+import android.support.annotation.NonNull;
+import android.support.v4.content.ContextCompat;
+import android.support.v7.widget.RecyclerView;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import com.zeapo.pwdstore.R;
+
+import java.util.ArrayList;
+import java.util.Set;
+import java.util.TreeSet;
+
+public abstract class EntryRecyclerAdapter extends RecyclerView.Adapter<EntryRecyclerAdapter.ViewHolder> {
+    private final Activity activity;
+    protected final ArrayList<PasswordItem> values;
+    protected final Set<Integer> selectedItems = new TreeSet<>();
+
+    public EntryRecyclerAdapter(Activity activity, ArrayList<PasswordItem> values) {
+        this.activity = activity;
+        this.values = values;
+    }
+
+    // Return the size of your dataset (invoked by the layout manager)
+    @Override
+    public int getItemCount() {
+        return values.size();
+    }
+
+    public ArrayList<PasswordItem> getValues() {
+        return this.values;
+    }
+
+    public void clear() {
+        this.values.clear();
+        this.notifyDataSetChanged();
+    }
+
+    public void addAll(ArrayList<PasswordItem> list) {
+        this.values.addAll(list);
+        this.notifyDataSetChanged();
+    }
+
+    public void add(PasswordItem item) {
+        this.values.add(item);
+        this.notifyItemInserted(getItemCount());
+    }
+
+    public void toggleSelection(int position) {
+        if (!selectedItems.remove(position)) {
+            selectedItems.add(position);
+        }
+    }
+
+    // use this after an item is removed to update the positions of items in set
+    // that followed the removed position
+    public void updateSelectedItems(int position, Set<Integer> selectedItems) {
+        Set<Integer> temp = new TreeSet<>();
+        for (int selected : selectedItems) {
+            if (selected > position) {
+                temp.add(selected - 1);
+            } else {
+                temp.add(selected);
+            }
+        }
+        selectedItems.clear();
+        selectedItems.addAll(temp);
+    }
+
+    public void remove(int position) {
+        this.values.remove(position);
+        this.notifyItemRemoved(position);
+
+        // keep selectedItems updated so we know what to notifyItemChanged
+        // (instead of just using notifyDataSetChanged)
+        updateSelectedItems(position, selectedItems);
+    }
+
+    @NonNull
+    protected View.OnLongClickListener getOnLongClickListener(ViewHolder holder, PasswordItem pass) {
+        return new View.OnLongClickListener() {
+            @Override
+            public boolean onLongClick(View v) {
+                return false;
+            }
+        };
+    }
+
+    // Replace the contents of a view (invoked by the layout manager)
+    @Override
+    public void onBindViewHolder(final ViewHolder holder, int position) {
+        final PasswordItem pass = getValues().get(position);
+        holder.name.setText(pass.toString());
+        if (pass.getType() == PasswordItem.TYPE_CATEGORY) {
+            holder.typeImage.setImageResource(R.drawable.ic_folder_grey600_24dp);
+            holder.name.setText(pass.toString() + "/");
+        } else {
+            holder.typeImage.setImageResource(R.drawable.ic_action_secure);
+            holder.name.setText(pass.toString());
+        }
+
+        holder.type.setText(pass.getFullPathName());
+        if (pass.getType() == PasswordItem.TYPE_CATEGORY) {
+//            holder.card.setCardBackgroundColor(activity.getResources().getColor(R.color.blue_grey_200));
+        } else {
+//            holder.card.setCardBackgroundColor(activity.getResources().getColor(R.color.blue_grey_50));
+        }
+
+        holder.view.setOnClickListener(getOnClickListener(holder, pass));
+
+        holder.view.setOnLongClickListener(getOnLongClickListener(holder, pass));
+
+        // after removal, everything is rebound for some reason; views are shuffled?
+        boolean selected = selectedItems.contains(position);
+        holder.view.setSelected(selected);
+        if (selected) {
+            holder.itemView.setBackgroundResource(R.color.deep_orange_200);
+            holder.type.setTextColor(Color.BLACK);
+        } else {
+            holder.itemView.setBackgroundResource(Color.alpha(1));
+            holder.type.setTextColor(ContextCompat.getColor(activity, R.color.grey_500));
+        }
+    }
+
+    @NonNull
+    protected abstract View.OnClickListener getOnClickListener(ViewHolder holder, PasswordItem pass);
+
+    // Provide a reference to the views for each data item
+    // Complex data items may need more than one view per item, and
+    // you provide access to all the views for a data item in a view holder
+    public static class ViewHolder extends RecyclerView.ViewHolder {
+        // each data item is just a string in this case
+        public View view;
+        public TextView name;
+        public TextView type;
+        public ImageView typeImage;
+
+        public ViewHolder(View v) {
+            super(v);
+            view = v;
+            name = (TextView) view.findViewById(R.id.label);
+            type = (TextView) view.findViewById(R.id.type);
+            typeImage = (ImageView) view.findViewById(R.id.type_image);
+        }
+    }
+
+    // Create new views (invoked by the layout manager)
+    @Override
+    public PasswordRecyclerAdapter.ViewHolder onCreateViewHolder(ViewGroup parent,
+                                                                 int viewType) {
+        // create a new view
+        View v = LayoutInflater.from(parent.getContext())
+                .inflate(R.layout.password_row_layout, parent, false);
+        return new ViewHolder(v);
+    }
+}