Add download label scene

app/build.gradle

@@ -73,6 +73,7 @@ dependencies {
     compile 'com.android.support:appcompat-v7:23.2.0'
     compile 'com.android.support:customtabs:23.2.0'
     compile 'com.android.support:design:23.2.0'
+    compile 'com.h6ah4i.android.widget.advrecyclerview:advrecyclerview:0.8.6'
     compile 'de.greenrobot:greendao:2.0.0'
     compile 'org.ccil.cowan.tagsoup:tagsoup:1.2.1'
 }

app/src/main/java/com/hippo/app/EditTextDialogBuilder.java

@@ -0,0 +1,77 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.app;
+
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.support.design.widget.TextInputLayout;
+import android.support.v7.app.AlertDialog;
+import android.view.KeyEvent;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.TextView;
+
+import com.hippo.ehviewer.R;
+
+public class EditTextDialogBuilder extends AlertDialog.Builder implements EditText.OnEditorActionListener {
+
+    private final TextInputLayout mTextInputLayout;
+    private final EditText mEditText;
+    private AlertDialog mDialog;
+
+    @SuppressLint("InflateParams")
+    public EditTextDialogBuilder(Context context, String text, String hint) {
+        super(context);
+        View view = LayoutInflater.from(context).inflate(R.layout.dialog_edittext_builder, null);
+        setView(view);
+        mTextInputLayout = (TextInputLayout) view;
+        mEditText = (EditText) view.findViewById(R.id.edit_text);
+        mEditText.setText(text);
+        mEditText.setOnEditorActionListener(this);
+        mTextInputLayout.setHint(hint);
+    }
+
+    public String getText() {
+        return mEditText.getText().toString();
+    }
+
+    public void setError(CharSequence error) {
+        mTextInputLayout.setError(error);
+    }
+
+    @Override
+    public AlertDialog create() {
+        mDialog = super.create();
+        return mDialog;
+    }
+
+    @Override
+    public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
+        if (mDialog != null) {
+            Button button = mDialog.getButton(DialogInterface.BUTTON_POSITIVE);
+            if (button != null) {
+                button.performClick();
+            }
+            return true;
+        } else {
+            return false;
+        }
+    }
+}

app/src/main/java/com/hippo/ehviewer/EhDB.java

@@ -417,4 +417,29 @@ public class EhDB {
         raw.setId(dao.insert(raw));
         return raw;
     }
+
+    public static synchronized void moveDownloadLabel(int fromPosition, int toPosition) {
+        if (fromPosition == toPosition) {
+            return;
+        }
+
+        boolean reverse = fromPosition > toPosition;
+        int offset = reverse ? toPosition : fromPosition;
+        int limit = reverse ? fromPosition - toPosition + 1 : toPosition - fromPosition + 1;
+
+        DownloadLabelDao dao = sDaoSession.getDownloadLabelDao();
+        List<DownloadLabelRaw> list = dao.queryBuilder().orderAsc(DownloadLabelDao.Properties.Time)
+                .offset(offset).limit(limit).list();
+
+        int step = reverse ? 1 : -1;
+        int start = reverse ? limit - 1 : 0;
+        int end = reverse ? 0 : limit - 1;
+        long toTime = list.get(end).getTime();
+        for (int i = end; reverse ? i < start : i > start; i += step) {
+            list.get(i).setTime(list.get(i + step).getTime());
+        }
+        list.get(start).setTime(toTime);
+
+        dao.updateInTx(list);
+    }
 }

app/src/main/java/com/hippo/ehviewer/download/DownloadManager.java

@@ -594,6 +594,29 @@ public class DownloadManager implements SpiderQueen.OnSpiderListener {
         }
     }
 
+    public void addLabel(String label) {
+        if (label == null || containLabel(label)) {
+            return;
+        }
+
+        mLabelList.add(EhDB.addDownloadLabel(label));
+        mMap.put(label, new LinkedList<DownloadInfo>());
+
+        if (mDownloadInfoListener != null) {
+            mDownloadInfoListener.onUpdateLabels();
+        }
+    }
+
+    public void moveLabel(int fromPosition, int toPosition) {
+        final DownloadLabelRaw item = mLabelList.remove(fromPosition);
+        mLabelList.add(toPosition, item);
+        EhDB.moveDownloadLabel(fromPosition, toPosition);
+
+        if (mDownloadInfoListener != null) {
+            mDownloadInfoListener.onUpdateLabels();
+        }
+    }
+
     boolean isIdle() {
         return mCurrentTask == null && mWaitList.isEmpty();
     }
@@ -901,10 +924,15 @@ public class DownloadManager implements SpiderQueen.OnSpiderListener {
         void onUpdateAll();
 
         /**
-         * Maybe all data is changed, maybe size is changed
+         * Maybe all data is changed, maybe list is changed
          */
         void onReload();
 
+        /**
+         * The list is gone
+         */
+        void onChange();
+
         /**
          * Remove the special info from the special position
          */

app/src/main/java/com/hippo/ehviewer/ui/scene/DownloadLabelScene.java

@@ -0,0 +1,324 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.ehviewer.ui.scene;
+
+import android.content.DialogInterface;
+import android.graphics.drawable.NinePatchDrawable;
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v7.app.AlertDialog;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
+import android.text.TextUtils;
+import android.view.LayoutInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.TextView;
+
+import com.h6ah4i.android.widget.advrecyclerview.animator.GeneralItemAnimator;
+import com.h6ah4i.android.widget.advrecyclerview.animator.SwipeDismissItemAnimator;
+import com.h6ah4i.android.widget.advrecyclerview.draggable.DraggableItemAdapter;
+import com.h6ah4i.android.widget.advrecyclerview.draggable.ItemDraggableRange;
+import com.h6ah4i.android.widget.advrecyclerview.draggable.RecyclerViewDragDropManager;
+import com.h6ah4i.android.widget.advrecyclerview.swipeable.RecyclerViewSwipeManager;
+import com.h6ah4i.android.widget.advrecyclerview.swipeable.SwipeableItemAdapter;
+import com.h6ah4i.android.widget.advrecyclerview.swipeable.SwipeableItemConstants;
+import com.h6ah4i.android.widget.advrecyclerview.swipeable.action.SwipeResultAction;
+import com.h6ah4i.android.widget.advrecyclerview.touchguard.RecyclerViewTouchActionGuardManager;
+import com.h6ah4i.android.widget.advrecyclerview.utils.AbstractDraggableSwipeableItemViewHolder;
+import com.hippo.app.EditTextDialogBuilder;
+import com.hippo.easyrecyclerview.EasyRecyclerView;
+import com.hippo.ehviewer.EhApplication;
+import com.hippo.ehviewer.R;
+import com.hippo.ehviewer.dao.DownloadLabelRaw;
+import com.hippo.util.ActivityHelper;
+import com.hippo.vector.VectorDrawable;
+import com.hippo.view.ViewTransition;
+import com.hippo.widget.SimpleImageView;
+import com.hippo.yorozuya.ViewUtils;
+
+import java.util.List;
+
+public class DownloadLabelScene extends ToolbarScene {
+
+    @Nullable
+    private EasyRecyclerView mRecyclerView;
+    @Nullable
+    private ViewTransition mViewTransition;
+
+    @Nullable
+    private RecyclerView.Adapter mAdapter;
+
+    @Nullable
+    public List<DownloadLabelRaw> mList = null;
+
+    @Override
+    public void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        mList = EhApplication.getDownloadManager(getContext()).getLabelList();
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        mList = null;
+    }
+
+    @SuppressWarnings("deprecation")
+    @Nullable
+    @Override
+    public View onCreateView2(LayoutInflater inflater,
+            @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+        View view = inflater.inflate(R.layout.scene_download_label, container, false);
+
+        mRecyclerView = (EasyRecyclerView) view.findViewById(R.id.recycler_view);
+        View tip = view.findViewById(R.id.tip);
+        SimpleImageView tipImage = (SimpleImageView) tip.findViewById(R.id.tip_image);
+        tipImage.setDrawable(VectorDrawable.create(getContext(), R.xml.sadpanda_head));
+        mViewTransition = new ViewTransition(mRecyclerView, tip);
+
+        if (mRecyclerView != null) {
+            // touch guard manager  (this class is required to suppress scrolling while swipe-dismiss animation is running)
+            RecyclerViewTouchActionGuardManager guardManager = new RecyclerViewTouchActionGuardManager();
+            guardManager.setInterceptVerticalScrollingWhileAnimationRunning(true);
+            guardManager.setEnabled(true);
+
+            // drag & drop manager
+            RecyclerViewDragDropManager dragDropManager = new RecyclerViewDragDropManager();
+            dragDropManager.setDraggingItemShadowDrawable(
+                    (NinePatchDrawable) getResources().getDrawable(R.drawable.shadow_8dp));
+
+            // swipe manager
+            RecyclerViewSwipeManager swipeManager = new RecyclerViewSwipeManager();
+
+            RecyclerView.Adapter adapter = new LabelAdapter();
+            adapter.setHasStableIds(true);
+            adapter = dragDropManager.createWrappedAdapter(adapter); // wrap for dragging
+            adapter = swipeManager.createWrappedAdapter(adapter); // wrap for swiping
+            mAdapter = adapter;
+
+            final GeneralItemAnimator animator = new SwipeDismissItemAnimator();
+            animator.setSupportsChangeAnimations(false);
+
+            mRecyclerView.hasFixedSize();
+            mRecyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
+            mRecyclerView.setAdapter(adapter);
+            mRecyclerView.setItemAnimator(animator);
+
+            guardManager.attachRecyclerView(mRecyclerView);
+            swipeManager.attachRecyclerView(mRecyclerView);
+            dragDropManager.attachRecyclerView(mRecyclerView);
+        }
+
+        updateView();
+
+        return view;
+    }
+
+    @Override
+    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+        setTitle(R.string.label);
+        setNavigationIcon(VectorDrawable.create(getContext(), R.xml.ic_arrow_left_dark_x24));
+
+        // Clear nav checked item
+        setNavCheckedItem(0);
+
+        // Hide IME
+        ActivityHelper.hideSoftInput(getActivity());
+    }
+
+    @Override
+    public void onNavigationClick() {
+        onBackPressed();
+    }
+
+    @Override
+    public int getMenuResId() {
+        return R.menu.scene_download_label;
+    }
+
+    @Override
+    public boolean onMenuItemClick(MenuItem item) {
+        int id = item.getItemId();
+        switch (id) {
+            case R.id.action_add: {
+                EditTextDialogBuilder builder = new EditTextDialogBuilder(getContext(), null, getString(R.string.label));
+                builder.setTitle(R.string.new_label_title);
+                builder.setPositiveButton(android.R.string.ok, null);
+                AlertDialog dialog = builder.show();
+                new NewLabelDialogHelper(builder, dialog);
+            }
+        }
+        return false;
+    }
+
+    private void updateView() {
+        if (mViewTransition != null) {
+            if (mList != null && mList.size() > 0) {
+                mViewTransition.showView(0);
+            } else {
+                mViewTransition.showView(1);
+            }
+        }
+    }
+
+    private class NewLabelDialogHelper implements View.OnClickListener {
+
+        private final EditTextDialogBuilder mBuilder;
+        private final AlertDialog mDialog;
+
+        public NewLabelDialogHelper(EditTextDialogBuilder builder, AlertDialog dialog) {
+            mBuilder = builder;
+            mDialog = dialog;
+            Button button = dialog.getButton(DialogInterface.BUTTON_POSITIVE);
+            if (button != null) {
+                button.setOnClickListener(this);
+            }
+        }
+
+        @Override
+        public void onClick(View v) {
+            String text = mBuilder.getText();
+            if (TextUtils.isEmpty(text)) {
+                mBuilder.setError(getString(R.string.label_text_is_empty));
+            } else if (getString(R.string.default_download_label_name).equals(text)) {
+                mBuilder.setError(getString(R.string.label_text_is_invalid));
+            } else if (EhApplication.getDownloadManager(getContext()).containLabel(text)) {
+                mBuilder.setError(getString(R.string.label_text_exist));
+            } else {
+                mBuilder.setError(null);
+                mDialog.dismiss();
+                EhApplication.getDownloadManager(getContext()).addLabel(text);
+                if (mAdapter != null && mList != null) {
+                    mAdapter.notifyItemInserted(mList.size() - 1);
+                }
+                if (mViewTransition != null) {
+                    if (mList != null && mList.size() > 0) {
+                        mViewTransition.showView(0);
+                    } else {
+                        mViewTransition.showView(1);
+                    }
+                }
+            }
+        }
+    }
+
+    private class LabelHolder extends AbstractDraggableSwipeableItemViewHolder
+            implements View.OnClickListener {
+
+        public final View swipeHandler;
+        public final TextView label;
+        public final View dragHandler;
+
+        public LabelHolder(View itemView) {
+            super(itemView);
+
+            swipeHandler = itemView.findViewById(R.id.swipe_handler);
+            label = (TextView) itemView.findViewById(R.id.label);
+            dragHandler = itemView.findViewById(R.id.drag_handler);
+
+            label.setOnClickListener(this);
+        }
+
+        @Override
+        public void onClick(View v) {
+            // TODO
+        }
+
+        @Override
+        public View getSwipeableContainerView() {
+            return swipeHandler;
+        }
+    }
+
+    private class LabelAdapter extends RecyclerView.Adapter<LabelHolder>
+            implements DraggableItemAdapter<LabelHolder>,
+            SwipeableItemAdapter<LabelHolder> {
+
+
+        @Override
+        public LabelHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+            return new LabelHolder(getActivity().getLayoutInflater()
+                    .inflate(R.layout.item_download_label, parent, false));
+        }
+
+        @Override
+        public void onBindViewHolder(LabelHolder holder, int position) {
+            if (mList != null) {
+                holder.label.setText(mList.get(position).getLabel());
+            }
+        }
+
+        @Override
+        public long getItemId(int position) {
+            return mList != null ? mList.get(position).getId() : 0;
+        }
+
+        @Override
+        public int getItemCount() {
+            return mList != null ? mList.size() : 0;
+        }
+
+        @Override
+        public boolean onCheckCanStartDrag(LabelHolder holder, int position, int x, int y) {
+            return ViewUtils.isViewUnder(holder.dragHandler, x, y, 0);
+        }
+
+        @Override
+        public ItemDraggableRange onGetItemDraggableRange(LabelHolder holder, int position) {
+            return null;
+        }
+
+        @Override
+        public void onMoveItem(int fromPosition, int toPosition) {
+            if (fromPosition == toPosition) {
+                return;
+            }
+
+            EhApplication.getDownloadManager(getContext()).moveLabel(fromPosition, toPosition);
+            if (mAdapter != null && mList != null) {
+                notifyItemMoved(fromPosition, toPosition);
+            }
+        }
+
+        @Override
+        public int onGetSwipeReactionType(LabelHolder holder, int position, int x, int y) {
+            return SwipeableItemConstants.REACTION_CAN_SWIPE_BOTH_H;
+        }
+
+        @Override
+        public void onSetSwipeBackground(LabelHolder holder, int position, int type) {
+            // Empty
+        }
+
+        @Override
+        public SwipeResultAction onSwipeItem(LabelHolder holder, int position, int result) {
+            switch (result) {
+                // swipe right
+                case SwipeableItemConstants.RESULT_SWIPED_RIGHT:
+                case SwipeableItemConstants.RESULT_SWIPED_LEFT:
+                    return null;
+                case SwipeableItemConstants.RESULT_CANCELED:
+                default:
+                    return null;
+            }
+        }
+    }
+}

app/src/main/java/com/hippo/ehviewer/ui/scene/DownloadScene.java

@@ -125,6 +125,14 @@ public class DownloadScene extends ToolbarScene
         }
     }
 
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        mList = null;
+        DownloadManager manager = EhApplication.getDownloadManager(getContext());
+        manager.setDownloadInfoListener(null);
+    }
+
     private void updateForLabel() {
         DownloadManager manager = EhApplication.getDownloadManager(getContext());
         if (mLabel == null) {
@@ -271,8 +279,6 @@ public class DownloadScene extends ToolbarScene
     public void onDestroyView() {
         super.onDestroyView();
 
-        DownloadManager manager = EhApplication.getDownloadManager(getContext());
-        manager.setDownloadInfoListener(null);
         mRecyclerView = null;
         mFabLayout = null;
         mViewTransition = null;
@@ -293,7 +299,7 @@ public class DownloadScene extends ToolbarScene
                 int id = item.getItemId();
                 switch (id) {
                     case R.id.action_settings:
-                        // TODO
+                        startScene(new Announcer(DownloadLabelScene.class));
                         return true;
                 }
                 return false;
@@ -338,12 +344,6 @@ public class DownloadScene extends ToolbarScene
         return view;
     }
 
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
-        mList = null;
-    }
-
     @Override
     public void onBackPressed() {
         if (mRecyclerView != null && mRecyclerView.isInCustomChoice()) {
@@ -546,6 +546,19 @@ public class DownloadScene extends ToolbarScene
         }
     }
 
+    @Override
+    public void onChange() {
+        mLabel = null;
+        updateForLabel();
+        if (mViewTransition != null) {
+            if (mList == null || mList.size() == 0) {
+                mViewTransition.showView(1);
+            } else {
+                mViewTransition.showView(0);
+            }
+        }
+    }
+
     @Override
     public void onRemove(@NonNull DownloadInfo info, @NonNull List<DownloadInfo> list, int position) {
         if (mList != list) {

app/src/main/java/com/hippo/widget/ShadowLinearLayout.java

@@ -0,0 +1,96 @@
+/*
+ * Copyright 2015 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.widget;
+
+import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.Rect;
+import android.graphics.drawable.NinePatchDrawable;
+import android.os.Build;
+import android.support.annotation.NonNull;
+import android.util.AttributeSet;
+import android.view.ViewOutlineProvider;
+import android.widget.LinearLayout;
+
+import com.hippo.ehviewer.R;
+import com.hippo.yorozuya.LayoutUtils;
+
+public class ShadowLinearLayout extends LinearLayout {
+
+    private NinePatchDrawable mShadow;
+    private final Rect mShadowPaddings = new Rect();
+
+    public ShadowLinearLayout(Context context) {
+        super(context);
+        init(context);
+    }
+
+    public ShadowLinearLayout(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        init(context);
+    }
+
+    public ShadowLinearLayout(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+        init(context);
+    }
+
+    private void init(Context context) {
+        // TODO not only 2dp
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+            setOutlineProvider(ViewOutlineProvider.BOUNDS);
+            setElevation(LayoutUtils.dp2pix(context, 2));
+        } else {
+            setShadow((NinePatchDrawable) context.getResources().getDrawable(R.drawable.shadow_2dp)); // TODO draktheme
+        }
+    }
+
+    private void setShadow(NinePatchDrawable shadow) {
+        mShadow = shadow;
+        mShadow.getPadding(mShadowPaddings);
+        updateShadowBounds();
+        setWillNotDraw(false);
+    }
+
+    private void updateShadowBounds() {
+        NinePatchDrawable shadow = mShadow;
+        if (shadow == null) {
+            return;
+        }
+
+        int width = getWidth();
+        int height = getHeight();
+        Rect paddings = mShadowPaddings;
+        if (width != 0 && height != 0) {
+            shadow.setBounds(-paddings.left, -paddings.top, width + paddings.right, height + paddings.bottom);
+        }
+    }
+
+    @Override
+    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
+        super.onLayout(changed, left, top, right, bottom);
+        updateShadowBounds();
+    }
+
+    @Override
+    public void draw(@NonNull Canvas canvas) {
+        if (mShadow != null) {
+            mShadow.draw(canvas);
+        }
+        super.draw(canvas);
+    }
+}

app/src/main/res/layout/dialog_edittext_builder.xml

@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2016 Hippo Seven
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<android.support.design.widget.TextInputLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:paddingLeft="?attr/dialogPreferredPadding"
+    android:paddingTop="@dimen/abc_dialog_padding_top_material"
+    android:paddingRight="?attr/dialogPreferredPadding">
+
+    <android.support.design.widget.TextInputEditText
+        android:id="@+id/edit_text"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:imeOptions="actionDone"
+        android:inputType="text"
+        android:maxLines="1"
+        android:singleLine="true"/>
+
+</android.support.design.widget.TextInputLayout>

app/src/main/res/layout/item_download_label.xml

@@ -0,0 +1,62 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2016 Hippo Seven
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<FrameLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:clipChildren="false">
+
+    <com.hippo.widget.ShadowLinearLayout
+        android:id="@+id/swipe_handler"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        android:background="@android:color/white">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+
+            <TextView
+                android:id="@+id/label"
+                android:layout_width="0dp"
+                android:layout_height="48dp"
+                android:layout_weight="1"
+                android:paddingLeft="16dp"
+                android:paddingRight="16dp"
+                android:gravity="center_vertical"
+                android:singleLine="true"
+                android:ellipsize="end"
+                android:textSize="@dimen/text_little_small"/>
+
+            <View
+                android:id="@+id/drag_handler"
+                android:layout_width="48dp"
+                android:layout_height="match_parent"
+                android:background="?attr/colorAccent"/>
+
+        </LinearLayout>
+
+        <View
+            android:layout_width="wrap_content"
+            android:layout_height="1dp"
+            android:background="@color/divider"/>
+
+    </com.hippo.widget.ShadowLinearLayout>
+</FrameLayout>

app/src/main/res/layout/scene_download_label.xml

@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2016 Hippo Seven
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<FrameLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <com.hippo.easyrecyclerview.EasyRecyclerView
+        android:id="@+id/recycler_view"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:padding="@dimen/keyline_margin"
+        android:clipChildren="false"
+        android:clipToPadding="false"/>
+
+    <LinearLayout
+        android:id="@+id/tip"
+        android:layout_width="240dp"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:orientation="vertical">
+
+        <com.hippo.widget.SimpleImageView
+            android:id="@+id/tip_image"
+            android:layout_width="168dp"
+            android:layout_height="168dp"
+            android:layout_gravity="center_horizontal"/>
+
+        <TextView
+            style="@style/TextAppearance.AppCompat.Medium"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_horizontal"
+            android:gravity="center_horizontal"
+            android:paddingTop="16dp"
+            android:paddingBottom="16dp"
+            android:text="@string/no_download_label"/>
+
+    </LinearLayout>
+</FrameLayout>

app/src/main/res/layout/scene_login.xml

@@ -48,7 +48,7 @@
                 android:layout_gravity="center_horizontal"
                 android:minWidth="@dimen/single_max_width">
 
-                <EditText
+                <android.support.design.widget.TextInputEditText
                     android:id="@+id/username"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
@@ -67,7 +67,7 @@
                 android:layout_gravity="center_horizontal"
                 android:minWidth="@dimen/single_max_width">
 
-                <EditText
+                <android.support.design.widget.TextInputEditText
                     android:id="@+id/password"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"

app/src/main/res/menu/scene_download_label.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2016 Hippo Seven
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<menu
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <item
+        android:id="@+id/action_add"
+        android:icon="@drawable/ic_add_dark_x24"
+        android:title="@string/add"
+        app:showAsAction="always"/>
+
+</menu>

app/src/main/res/values/strings.xml

@@ -240,6 +240,14 @@
     <string name="download_move_dialog_title">Move</string>
     <string name="label">Label</string>
 
+    <!-- Download label -->
+    <string name="no_download_label">No labels</string>
+    <string name="add">Add</string>
+    <string name="new_label_title">New label</string>
+    <string name="label_text_is_empty">Label text is empty</string>
+    <string name="label_text_is_invalid">\"Default\" is an invalid label</string>
+    <string name="label_text_exist">Label text exists</string>
+
     <!-- Gallery Activity -->
     <string name="page_menu_title">Page %d</string>
     <string name="page_menu_refresh">@string/refresh</string>