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/*
* Copyright (C) 2006 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.Activity;
import android.app.AlertDialog;
import android.app.Fragment;
import android.app.LoaderManager;
import android.content.ClipData;
import android.content.ClipboardManager;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.content.CursorLoader;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.Loader;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.provider.BrowserContract;
import android.provider.BrowserContract.Accounts;
import android.text.TextUtils;
import android.util.Pair;
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.OnClickListener;
import android.view.ViewGroup;
import android.webkit.WebIconDatabase.IconListener;
import android.widget.Adapter;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.Button;
import android.widget.GridView;
import android.widget.Toast;
import java.util.Stack;
/**
* View showing the user's bookmarks in the browser.
*/
public class BrowserBookmarksPage extends Fragment implements View.OnCreateContextMenuListener,
LoaderManager.LoaderCallbacks<Cursor>, OnItemClickListener, IconListener, OnClickListener,
OnItemSelectedListener {
static final int BOOKMARKS_SAVE = 1;
static final String LOGTAG = "browser";
static final int LOADER_BOOKMARKS = 1;
static final int LOADER_ACCOUNTS_THEN_BOOKMARKS = 2;
static final String EXTRA_SHORTCUT = "create_shortcut";
static final String EXTRA_DISABLE_WINDOW = "disable_new_window";
static final String ACCOUNT_NAME_UNSYNCED = "Unsynced";
public static final String PREF_ACCOUNT_TYPE = "acct_type";
public static final String PREF_ACCOUNT_NAME = "acct_name";
static final String DEFAULT_ACCOUNT = "local";
BookmarksHistoryCallbacks mCallbacks;
GridView mGrid;
BrowserBookmarksAdapter mAdapter;
boolean mDisableNewWindow;
BookmarkItem mContextHeader;
boolean mCanceled = false;
boolean mCreateShortcut;
View mEmptyView;
View mContentView;
Stack<Pair<String, Uri>> mFolderStack = new Stack<Pair<String, Uri>>();
Button mUpButton;
@Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
switch (id) {
case LOADER_BOOKMARKS: {
String accountType = null;
String accountName = null;
if (args != null) {
accountType = args.getString(BookmarksLoader.ARG_ACCOUNT_TYPE);
accountName = args.getString(BookmarksLoader.ARG_ACCOUNT_NAME);
}
return new BookmarksLoader(getActivity(), accountType, accountName);
}
case LOADER_ACCOUNTS_THEN_BOOKMARKS: {
return new CursorLoader(getActivity(), Accounts.CONTENT_URI,
new String[] { Accounts.ACCOUNT_TYPE, Accounts.ACCOUNT_NAME }, null, null,
null);
}
}
throw new UnsupportedOperationException("Unknown loader id " + id);
}
@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
switch (loader.getId()) {
case LOADER_BOOKMARKS: {
// Set the visibility of the empty vs. content views
if (cursor == null || cursor.getCount() == 0) {
mEmptyView.setVisibility(View.VISIBLE);
mGrid.setVisibility(View.GONE);
} else {
mEmptyView.setVisibility(View.GONE);
mGrid.setVisibility(View.VISIBLE);
}
// Fill in the "up" button if needed
BookmarksLoader bl = (BookmarksLoader) loader;
String path = bl.getUri().getPath();
boolean rootFolder =
BrowserContract.Bookmarks.CONTENT_URI_DEFAULT_FOLDER.getPath().equals(path);
if (rootFolder) {
mUpButton.setText(R.string.defaultBookmarksUpButton);
mUpButton.setEnabled(false);
} else {
mUpButton.setText(mFolderStack.peek().first);
mUpButton.setEnabled(true);
}
mUpButton.setVisibility(View.VISIBLE);
// Give the new data to the adapter
mAdapter.changeCursor(cursor);
break;
}
case LOADER_ACCOUNTS_THEN_BOOKMARKS: {
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(
getActivity());
String storedAccountType = prefs.getString(PREF_ACCOUNT_TYPE, null);
String storedAccountName = prefs.getString(PREF_ACCOUNT_NAME, null);
String accountType =
TextUtils.isEmpty(storedAccountType) ? DEFAULT_ACCOUNT : storedAccountType;
String accountName =
TextUtils.isEmpty(storedAccountName) ? DEFAULT_ACCOUNT : storedAccountName;
Bundle args = null;
if (cursor == null || !cursor.moveToFirst()) {
// No accounts, set the prefs to the default
accountType = DEFAULT_ACCOUNT;
accountName = DEFAULT_ACCOUNT;
} else {
int accountPosition = -1;
if (!DEFAULT_ACCOUNT.equals(accountType) &&
!DEFAULT_ACCOUNT.equals(accountName)) {
// Check to see if the account in prefs still exists
cursor.moveToFirst();
do {
if (accountType.equals(cursor.getString(0))
&& accountName.equals(cursor.getString(1))) {
accountPosition = cursor.getPosition();
break;
}
} while (cursor.moveToNext());
}
if (accountPosition == -1) {
if (!(DEFAULT_ACCOUNT.equals(accountType)
&& DEFAULT_ACCOUNT.equals(accountName))) {
// No account is set in prefs and there is at least one,
// so pick the first one as the default
cursor.moveToFirst();
accountType = cursor.getString(0);
accountName = cursor.getString(1);
}
}
args = new Bundle();
args.putString(BookmarksLoader.ARG_ACCOUNT_TYPE, accountType);
args.putString(BookmarksLoader.ARG_ACCOUNT_NAME, accountName);
}
// The stored account name wasn't found, update the stored account with a valid one
if (!accountType.equals(storedAccountType)
|| !accountName.equals(storedAccountName)) {
prefs.edit()
.putString(PREF_ACCOUNT_TYPE, accountType)
.putString(PREF_ACCOUNT_NAME, accountName)
.apply();
}
getLoaderManager().initLoader(LOADER_BOOKMARKS, args, this);
break;
}
}
}
@Override
public void onClick(View view) {
if (view == mUpButton) {
Pair<String, Uri> pair = mFolderStack.pop();
BookmarksLoader loader =
(BookmarksLoader) ((Loader) getLoaderManager().getLoader(LOADER_BOOKMARKS));
loader.setUri(pair.second);
loader.forceLoad();
}
}
@Override
public boolean onContextItemSelected(MenuItem item) {
final Activity activity = getActivity();
// It is possible that the view has been canceled when we get to
// this point as back has a higher priority
if (mCanceled) {
return true;
}
AdapterView.AdapterContextMenuInfo i =
(AdapterView.AdapterContextMenuInfo)item.getMenuInfo();
// If we have no menu info, we can't tell which item was selected.
if (i == null) {
return true;
}
switch (item.getItemId()) {
case R.id.open_context_menu_id:
loadUrl(i.position);
break;
case R.id.edit_context_menu_id:
editBookmark(i.position);
break;
case R.id.shortcut_context_menu_id:
activity.sendBroadcast(createShortcutIntent(i.position));
break;
case R.id.delete_context_menu_id:
displayRemoveBookmarkDialog(i.position);
break;
case R.id.new_window_context_menu_id:
openInNewWindow(i.position);
break;
case R.id.share_link_context_menu_id: {
Cursor cursor = (Cursor) mAdapter.getItem(i.position);
BrowserActivity.sharePage(activity,
cursor.getString(BookmarksLoader.COLUMN_INDEX_TITLE),
cursor.getString(BookmarksLoader.COLUMN_INDEX_URL),
getBitmap(cursor, BookmarksLoader.COLUMN_INDEX_FAVICON),
getBitmap(cursor, BookmarksLoader.COLUMN_INDEX_THUMBNAIL));
break;
}
case R.id.copy_url_context_menu_id:
copy(getUrl(i.position));
break;
case R.id.homepage_context_menu_id: {
BrowserSettings.getInstance().setHomePage(activity, getUrl(i.position));
Toast.makeText(activity, R.string.homepage_set, Toast.LENGTH_LONG).show();
break;
}
// Only for the Most visited page
case R.id.save_to_bookmarks_menu_id: {
Cursor cursor = (Cursor) mAdapter.getItem(i.position);
String name = cursor.getString(BookmarksLoader.COLUMN_INDEX_TITLE);
String url = cursor.getString(BookmarksLoader.COLUMN_INDEX_URL);
// If the site is bookmarked, the item becomes remove from
// bookmarks.
Bookmarks.removeFromBookmarks(activity, activity.getContentResolver(), url, name);
break;
}
default:
return super.onContextItemSelected(item);
}
return true;
}
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 void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
Cursor cursor = (Cursor) mAdapter.getItem(info.position);
boolean isFolder
= cursor.getInt(BookmarksLoader.COLUMN_INDEX_IS_FOLDER) != 0;
if (isFolder) return;
final Activity activity = getActivity();
MenuInflater inflater = activity.getMenuInflater();
inflater.inflate(R.menu.bookmarkscontext, menu);
if (mDisableNewWindow) {
menu.findItem(R.id.new_window_context_menu_id).setVisible(false);
}
if (mContextHeader == null) {
mContextHeader = new BookmarkItem(activity);
} else if (mContextHeader.getParent() != null) {
((ViewGroup) mContextHeader.getParent()).removeView(mContextHeader);
}
populateBookmarkItem(cursor, mContextHeader);
menu.setHeaderView(mContextHeader);
}
private void populateBookmarkItem(Cursor cursor, BookmarkItem item) {
String url = cursor.getString(BookmarksLoader.COLUMN_INDEX_URL);
item.setUrl(url);
item.setName(cursor.getString(BookmarksLoader.COLUMN_INDEX_TITLE));
Bitmap bitmap = getBitmap(cursor, BookmarksLoader.COLUMN_INDEX_FAVICON);
if (bitmap == null) {
bitmap = CombinedBookmarkHistoryActivity.getIconListenerSet().getFavicon(url);
}
item.setFavicon(bitmap);
}
/**
* Create a new BrowserBookmarksPage.
*/
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
Bundle args = getArguments();
mCreateShortcut = args == null ? false : args.getBoolean("create_shortcut", false);
mDisableNewWindow = args == null ? false : args.getBoolean("disable_new_window", false);
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
mCallbacks = (BookmarksHistoryCallbacks) activity;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
Context context = getActivity();
View root = inflater.inflate(R.layout.bookmarks, container, false);
mEmptyView = root.findViewById(android.R.id.empty);
mContentView = root.findViewById(android.R.id.content);
mGrid = (GridView) root.findViewById(R.id.grid);
mGrid.setOnItemClickListener(this);
mGrid.setColumnWidth(BrowserActivity.getDesiredThumbnailWidth(getActivity()));
if (!mCreateShortcut) {
mGrid.setOnCreateContextMenuListener(this);
}
mUpButton = (Button) root.findViewById(R.id.up);
mUpButton.setEnabled(false);
mUpButton.setOnClickListener(this);
mUpButton.setVisibility(View.GONE);
mAdapter = new BrowserBookmarksAdapter(getActivity());
mGrid.setAdapter(mAdapter);
// Start the loaders
LoaderManager lm = getLoaderManager();
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
String accountType = prefs.getString(PREF_ACCOUNT_TYPE, DEFAULT_ACCOUNT);
String accountName = prefs.getString(PREF_ACCOUNT_NAME, DEFAULT_ACCOUNT);
if (!TextUtils.isEmpty(accountType) && !TextUtils.isEmpty(accountName)) {
// There is an account set, load up that one
Bundle args = null;
if (!DEFAULT_ACCOUNT.equals(accountType) && !DEFAULT_ACCOUNT.equals(accountName)) {
args = new Bundle();
args.putString(BookmarksLoader.ARG_ACCOUNT_TYPE, accountType);
args.putString(BookmarksLoader.ARG_ACCOUNT_NAME, accountName);
}
lm.restartLoader(LOADER_BOOKMARKS, args, this);
} else {
// No account set, load the account list first
lm.restartLoader(LOADER_ACCOUNTS_THEN_BOOKMARKS, null, this);
}
// Add our own listener in case there are favicons that have yet to be loaded.
CombinedBookmarkHistoryActivity.getIconListenerSet().addListener(this);
return root;
}
@Override
public void onReceivedIcon(String url, Bitmap icon) {
// A new favicon has been loaded, so let anything attached to the adapter know about it
// so new icons will be loaded.
mAdapter.notifyDataSetChanged();
}
@Override
public void onItemClick(AdapterView parent, View v, int position, long id) {
// It is possible that the view has been canceled when we get to
// this point as back has a higher priority
if (mCanceled) {
android.util.Log.e(LOGTAG, "item clicked when dismissing");
return;
}
if (mCreateShortcut) {
Intent intent = createShortcutIntent(position);
// the activity handles the intent in startActivityFromFragment
startActivity(intent);
return;
}
Cursor cursor = (Cursor) mAdapter.getItem(position);
boolean isFolder = cursor.getInt(BookmarksLoader.COLUMN_INDEX_IS_FOLDER) != 0;
if (!isFolder) {
mCallbacks.onUrlSelected(getUrl(position), false);
} else {
String title;
if (mFolderStack.size() != 0) {
title = cursor.getString(BookmarksLoader.COLUMN_INDEX_TITLE);
} else {
// TODO localize
title = "Bookmarks";
}
LoaderManager manager = getLoaderManager();
BookmarksLoader loader =
(BookmarksLoader) ((Loader) manager.getLoader(LOADER_BOOKMARKS));
mFolderStack.push(new Pair(title, loader.getUri()));
Uri uri = ContentUris.withAppendedId(
BrowserContract.Bookmarks.CONTENT_URI_DEFAULT_FOLDER, id);
loader.setUri(uri);
loader.forceLoad();
}
}
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
Adapter adapter = parent.getAdapter();
String accountType = "com.google";
String accountName = adapter.getItem(position).toString();
Bundle args = null;
if (ACCOUNT_NAME_UNSYNCED.equals(accountName)) {
accountType = DEFAULT_ACCOUNT;
accountName = DEFAULT_ACCOUNT;
} else {
args = new Bundle();
args.putString(BookmarksLoader.ARG_ACCOUNT_TYPE, accountType);
args.putString(BookmarksLoader.ARG_ACCOUNT_NAME, accountName);
}
// Remember the selection for later
PreferenceManager.getDefaultSharedPreferences(getActivity()).edit()
.putString(PREF_ACCOUNT_TYPE, accountType)
.putString(PREF_ACCOUNT_NAME, accountName)
.apply();
getLoaderManager().restartLoader(LOADER_BOOKMARKS, args, this);
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
// Do nothing
}
private Intent createShortcutIntent(int position) {
Cursor cursor = (Cursor) mAdapter.getItem(position);
String url = cursor.getString(BookmarksLoader.COLUMN_INDEX_URL);
String title = cursor.getString(BookmarksLoader.COLUMN_INDEX_URL);
Bitmap touchIcon = getBitmap(cursor, BookmarksLoader.COLUMN_INDEX_TOUCH_ICON);
Bitmap favicon = getBitmap(cursor, BookmarksLoader.COLUMN_INDEX_FAVICON);
return BookmarkUtils.createAddToHomeIntent(getActivity(), url, title, touchIcon, favicon);
}
private void loadUrl(int position) {
mCallbacks.onUrlSelected(getUrl(position), false);
}
private void openInNewWindow(int position) {
mCallbacks.onUrlSelected(getUrl(position), true);
}
private void editBookmark(int position) {
Intent intent = new Intent(getActivity(), AddBookmarkPage.class);
Cursor cursor = (Cursor) mAdapter.getItem(position);
Bundle item = new Bundle();
item.putString(BrowserContract.Bookmarks.TITLE,
cursor.getString(BookmarksLoader.COLUMN_INDEX_TITLE));
item.putString(BrowserContract.Bookmarks.URL,
cursor.getString(BookmarksLoader.COLUMN_INDEX_URL));
byte[] data = cursor.getBlob(BookmarksLoader.COLUMN_INDEX_FAVICON);
if (data != null) {
item.putParcelable(BrowserContract.Bookmarks.FAVICON,
BitmapFactory.decodeByteArray(data, 0, data.length));
}
item.putInt("id", cursor.getInt(BookmarksLoader.COLUMN_INDEX_ID));
item.putLong(BrowserContract.Bookmarks.PARENT,
cursor.getLong(BookmarksLoader.COLUMN_INDEX_PARENT));
intent.putExtra("bookmark", item);
startActivityForResult(intent, BOOKMARKS_SAVE);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
switch(requestCode) {
case BOOKMARKS_SAVE:
if (resultCode == Activity.RESULT_OK) {
Bundle extras;
if (data != null && (extras = data.getExtras()) != null) {
// If there are extras, then we need to save
// the edited bookmark. This is done in updateRow()
String title = extras.getString("title");
String url = extras.getString("url");
if (title != null && url != null) {
updateRow(extras);
}
}
}
break;
}
}
/**
* Update a row in the database with new information.
* @param map Bundle storing id, title and url of new information
*/
public void updateRow(Bundle map) {
// Find the record
int id = map.getInt("id");
int position = -1;
Cursor cursor = mAdapter.getCursor();
for (cursor.moveToFirst(); !cursor.isAfterLast(); cursor.moveToNext()) {
if (cursor.getInt(BookmarksLoader.COLUMN_INDEX_ID) == id) {
position = cursor.getPosition();
break;
}
}
if (position < 0) {
return;
}
cursor.moveToPosition(position);
ContentValues values = new ContentValues();
String title = map.getString(BrowserContract.Bookmarks.TITLE);
if (!title.equals(cursor.getString(BookmarksLoader.COLUMN_INDEX_TITLE))) {
values.put(BrowserContract.Bookmarks.TITLE, title);
}
String url = map.getString(BrowserContract.Bookmarks.URL);
if (!url.equals(cursor.getString(BookmarksLoader.COLUMN_INDEX_URL))) {
values.put(BrowserContract.Bookmarks.URL, url);
}
if (map.getBoolean("invalidateThumbnail") == true) {
values.putNull(BrowserContract.Bookmarks.THUMBNAIL);
}
if (values.size() > 0) {
getActivity().getContentResolver().update(
ContentUris.withAppendedId(BrowserContract.Bookmarks.CONTENT_URI, id),
values, null, null);
}
}
private void displayRemoveBookmarkDialog(final int position) {
// Put up a dialog asking if the user really wants to
// delete the bookmark
Cursor cursor = (Cursor) mAdapter.getItem(position);
Context context = getActivity();
final ContentResolver resolver = context.getContentResolver();
final Uri uri = ContentUris.withAppendedId(BrowserContract.Bookmarks.CONTENT_URI,
cursor.getLong(BookmarksLoader.COLUMN_INDEX_ID));
new AlertDialog.Builder(context)
.setTitle(R.string.delete_bookmark)
.setIcon(android.R.drawable.ic_dialog_alert)
.setMessage(context.getString(R.string.delete_bookmark_warning,
cursor.getString(BookmarksLoader.COLUMN_INDEX_TITLE)))
.setPositiveButton(R.string.ok,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int whichButton) {
resolver.delete(uri, null, null);
}
})
.setNegativeButton(R.string.cancel, null)
.show();
}
private String getUrl(int position) {
Cursor cursor = (Cursor) mAdapter.getItem(position);
return cursor.getString(BookmarksLoader.COLUMN_INDEX_URL);
}
private void copy(CharSequence text) {
ClipboardManager cm = (ClipboardManager) getActivity().getSystemService(
Context.CLIPBOARD_SERVICE);
cm.setPrimaryClip(ClipData.newRawUri(null, null, Uri.parse(text.toString())));
}
}