Saved Pages tab

 Bug: 4982126
 Add saved pages tab
 Remove "save page" menu option
 Add "save for offline reading" menu option
 Smooth animation to combo view

Change-Id: Ia67552a6f6a5474a6dfcff6790a341d4d36d5a77

1 files changed, 233 insertions, 0 deletions

diff --git a/src/com/android/browser/BrowserSnapshotPage.java b/src/com/android/browser/BrowserSnapshotPage.java
new file mode 100644
index 00000000..06b2e429
--- /dev/null
+++ b/src/com/android/browser/BrowserSnapshotPage.java
@@ -0,0 +1,233 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * 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.android.browser;
+
+import android.app.Fragment;
+import android.app.LoaderManager.LoaderCallbacks;
+import android.content.ContentResolver;
+import android.content.ContentUris;
+import android.content.Context;
+import android.content.CursorLoader;
+import android.content.Loader;
+import android.database.Cursor;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.net.Uri;
+import android.os.Bundle;
+import android.view.ContextMenu;
+import android.view.ContextMenu.ContextMenuInfo;
+import android.view.LayoutInflater;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.View.MeasureSpec;
+import android.view.ViewGroup;
+import android.widget.AdapterView;
+import android.widget.AdapterView.AdapterContextMenuInfo;
+import android.widget.AdapterView.OnItemClickListener;
+import android.widget.GridView;
+import android.widget.ImageView;
+import android.widget.ResourceCursorAdapter;
+import android.widget.TextView;
+
+import com.android.browser.provider.BrowserProvider2.Snapshots;
+
+import java.text.DateFormat;
+import java.util.Date;
+
+public class BrowserSnapshotPage extends Fragment implements
+        LoaderCallbacks<Cursor>, OnItemClickListener {
+
+    public static final String EXTRA_ANIMATE_ID = "animate_id";
+
+    private static final int LOADER_SNAPSHOTS = 1;
+    private static final String[] PROJECTION = new String[] {
+        Snapshots._ID,
+        Snapshots.TITLE,
+        "length(" + Snapshots.VIEWSTATE + ")",
+        Snapshots.THUMBNAIL,
+        Snapshots.FAVICON,
+        Snapshots.URL,
+    };
+    private static final int SNAPSHOT_TITLE = 1;
+    private static final int SNAPSHOT_VIEWSTATE_LENGTH = 2;
+    private static final int SNAPSHOT_THUMBNAIL = 3;
+    private static final int SNAPSHOT_FAVICON = 4;
+    private static final int SNAPSHOT_URL = 5;
+
+    GridView mGrid;
+    View mEmpty;
+    SnapshotAdapter mAdapter;
+    UiController mUiController;
+
+    public static BrowserSnapshotPage newInstance(UiController uiController,
+            Bundle extras) {
+        BrowserSnapshotPage instance = new BrowserSnapshotPage();
+        instance.mUiController = uiController;
+        instance.setArguments(extras);
+        return instance;
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+            Bundle savedInstanceState) {
+        View view = inflater.inflate(R.layout.snapshots, container, false);
+        mEmpty = view.findViewById(android.R.id.empty);
+        mGrid = (GridView) view.findViewById(R.id.grid);
+        setupGrid(inflater);
+        getLoaderManager().initLoader(LOADER_SNAPSHOTS, null, this);
+        return view;
+    }
+
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        getLoaderManager().destroyLoader(LOADER_SNAPSHOTS);
+        mAdapter.changeCursor(null);
+        mAdapter = null;
+    }
+
+    void setupGrid(LayoutInflater inflater) {
+        View item = inflater.inflate(R.layout.snapshot_item, mGrid, false);
+        int mspec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
+        item.measure(mspec, mspec);
+        int width = item.getMeasuredWidth();
+        mGrid.setColumnWidth(width);
+        mGrid.setOnItemClickListener(this);
+        mGrid.setOnCreateContextMenuListener(this);
+    }
+
+    @Override
+    public Loader<Cursor> onCreateLoader(int id, Bundle args) {
+        if (id == LOADER_SNAPSHOTS) {
+            // TODO: Sort by date created
+            return new CursorLoader(getActivity(),
+                    Snapshots.CONTENT_URI, PROJECTION,
+                    null, null, null);
+        }
+        return null;
+    }
+
+    @Override
+    public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
+        if (loader.getId() == LOADER_SNAPSHOTS) {
+            if (mAdapter == null) {
+                mAdapter = new SnapshotAdapter(getActivity(), data);
+                mGrid.setAdapter(mAdapter);
+            } else {
+                mAdapter.changeCursor(data);
+            }
+            boolean empty = mAdapter.isEmpty();
+            mGrid.setVisibility(empty ? View.GONE : View.VISIBLE);
+            mEmpty.setVisibility(empty ? View.VISIBLE : View.GONE);
+        }
+    }
+
+    @Override
+    public void onLoaderReset(Loader<Cursor> loader) {
+    }
+
+    @Override
+    public void onCreateContextMenu(ContextMenu menu, View v,
+            ContextMenuInfo menuInfo) {
+        MenuInflater inflater = getActivity().getMenuInflater();
+        inflater.inflate(R.menu.snapshots_context, menu);
+        // Create the header, re-use BookmarkItem (has the layout we want)
+        BookmarkItem header = new BookmarkItem(getActivity());
+        AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
+        populateBookmarkItem(mAdapter.getItem(info.position), header);
+        menu.setHeaderView(header);
+    }
+
+    private void populateBookmarkItem(Cursor cursor, BookmarkItem item) {
+        item.setName(cursor.getString(SNAPSHOT_TITLE));
+        item.setUrl(cursor.getString(SNAPSHOT_URL));
+        item.setFavicon(getBitmap(cursor, SNAPSHOT_FAVICON));
+    }
+
+    static Bitmap getBitmap(Cursor cursor, int columnIndex) {
+        byte[] data = cursor.getBlob(columnIndex);
+        if (data == null) {
+            return null;
+        }
+        return BitmapFactory.decodeByteArray(data, 0, data.length);
+    }
+
+    @Override
+    public boolean onContextItemSelected(MenuItem item) {
+        if (item.getItemId() == R.id.delete_context_menu_id) {
+            AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
+            deleteSnapshot(info.id);
+            return true;
+        }
+        return super.onContextItemSelected(item);
+    }
+
+    void deleteSnapshot(long id) {
+        final Uri uri = ContentUris.withAppendedId(Snapshots.CONTENT_URI, id);
+        final ContentResolver cr = getActivity().getContentResolver();
+        new Thread() {
+            @Override
+            public void run() {
+                cr.delete(uri, null, null);
+            }
+        }.start();
+
+    }
+
+    @Override
+    public void onItemClick(AdapterView<?> parent, View view, int position,
+            long id) {
+        mUiController.removeComboView();
+        mUiController.createNewSnapshotTab(id, true);
+    }
+
+    private static class SnapshotAdapter extends ResourceCursorAdapter {
+
+        public SnapshotAdapter(Context context, Cursor c) {
+            super(context, R.layout.snapshot_item, c, 0);
+        }
+
+        @Override
+        public void bindView(View view, Context context, Cursor cursor) {
+            ImageView thumbnail = (ImageView) view.findViewById(R.id.thumb);
+            byte[] thumbBlob = cursor.getBlob(SNAPSHOT_THUMBNAIL);
+            if (thumbBlob == null) {
+                thumbnail.setImageResource(R.drawable.browser_thumbnail);
+            } else {
+                Bitmap thumbBitmap = BitmapFactory.decodeByteArray(
+                        thumbBlob, 0, thumbBlob.length);
+                thumbnail.setImageBitmap(thumbBitmap);
+            }
+            TextView title = (TextView) view.findViewById(R.id.title);
+            title.setText(cursor.getString(SNAPSHOT_TITLE));
+            TextView size = (TextView) view.findViewById(R.id.size);
+            int stateLen = cursor.getInt(SNAPSHOT_VIEWSTATE_LENGTH);
+            size.setText(String.format("%.1fMB", stateLen / 1024f / 1024f));
+            // We don't actually have the date in the database yet
+            // Use the current date as a placeholder
+            TextView date = (TextView) view.findViewById(R.id.date);
+            DateFormat dateFormat = DateFormat.getDateInstance(DateFormat.SHORT);
+            date.setText(dateFormat.format(new Date()));
+        }
+
+        @Override
+        public Cursor getItem(int position) {
+            return (Cursor) super.getItem(position);
+        }
+    }
+
+}