X-Git-Url: https://gitweb.stoutner.com/?p=PrivacyBrowserAndroid.git;a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2Factivities%2FBookmarksDatabaseViewActivity.java;h=dd9c42cfeca92c5ff626cfddb326538e91c87c9c;hp=1f011f72618dc53dfb8ac55a0ee70de24e8ccab3;hb=572449f6c66adfc1a3d88e761cb87581a7961df3;hpb=b17095e4a30d08098614c82d8ddab67896c8ceb0 diff --git a/app/src/main/java/com/stoutner/privacybrowser/activities/BookmarksDatabaseViewActivity.java b/app/src/main/java/com/stoutner/privacybrowser/activities/BookmarksDatabaseViewActivity.java index 1f011f72..dd9c42cf 100644 --- a/app/src/main/java/com/stoutner/privacybrowser/activities/BookmarksDatabaseViewActivity.java +++ b/app/src/main/java/com/stoutner/privacybrowser/activities/BookmarksDatabaseViewActivity.java @@ -30,7 +30,6 @@ import android.graphics.drawable.BitmapDrawable; import android.graphics.drawable.Drawable; import android.os.Bundle; import android.support.design.widget.Snackbar; -import android.support.v4.app.NavUtils; import android.support.v4.content.ContextCompat; import android.support.v4.widget.CursorAdapter; import android.support.v4.widget.ResourceCursorAdapter; @@ -39,11 +38,14 @@ import android.support.v7.app.AppCompatActivity; // `AppCompatDialogFragment` is required instead of `DialogFragment` or an error is produced on API <=22. import android.support.v7.app.AppCompatDialogFragment; import android.support.v7.widget.Toolbar; +import android.util.SparseBooleanArray; +import android.view.ActionMode; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.view.WindowManager; +import android.widget.AbsListView; import android.widget.AdapterView; import android.widget.EditText; import android.widget.ImageView; @@ -59,18 +61,19 @@ import com.stoutner.privacybrowser.helpers.BookmarksDatabaseHelper; import java.io.ByteArrayOutputStream; -public class BookmarksDatabaseViewActivity extends AppCompatActivity implements EditBookmarkDatabaseViewDialog.EditBookmarkDatabaseViewListener, EditBookmarkFolderDatabaseViewDialog.EditBookmarkFolderDatabaseViewListener { +public class BookmarksDatabaseViewActivity extends AppCompatActivity implements EditBookmarkDatabaseViewDialog.EditBookmarkDatabaseViewListener, + EditBookmarkFolderDatabaseViewDialog.EditBookmarkFolderDatabaseViewListener { // Instantiate the constants. private static final int ALL_FOLDERS_DATABASE_ID = -2; private static final int HOME_FOLDER_DATABASE_ID = -1; - // `bookmarksDatabaseHelper` is used in `onCreate()`, `updateBookmarksListView()`, and `onDestroy()`. + // `bookmarksDatabaseHelper` is used in `onCreate()`, `updateBookmarksListView()`, `selectAllBookmarksInFolder()`, and `onDestroy()`. private BookmarksDatabaseHelper bookmarksDatabaseHelper; // `bookmarksCursor` is used in `onCreate()`, `updateBookmarksListView()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`, and `onDestroy()`. private Cursor bookmarksCursor; - // `bookmarksCursorAdapter` is used in `onCreate()` and `updateBookmarksListView()`. + // `bookmarksCursorAdapter` is used in `onCreate()`, `selectAllBookmarksInFolder()`, and `updateBookmarksListView()`. private CursorAdapter bookmarksCursorAdapter; // `oldFolderNameString` is used in `onCreate()` and `onSaveBookmarkFolder()`. @@ -85,6 +88,12 @@ public class BookmarksDatabaseViewActivity extends AppCompatActivity implements // `sortByDisplayOrder` is used in `onCreate()`, `onOptionsItemSelected()`, and `updateBookmarksListView()`. private boolean sortByDisplayOrder; + // `bookmarksDeletedSnackbar` is used in `onCreate()`, `onOptionsItemSelected()`, and `onBackPressed()`. + private Snackbar bookmarksDeletedSnackbar; + + // `closeActivityAfterDismissingSnackbar` is used in `onCreate()`, `onOptionsItemSelected()`, and `onBackPressed()`. + private boolean closeActivityAfterDismissingSnackbar; + @Override public void onCreate(Bundle savedInstanceState) { // Disable screenshots if not allowed. @@ -119,7 +128,7 @@ public class BookmarksDatabaseViewActivity extends AppCompatActivity implements appBar.setCustomView(R.layout.spinner); appBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM | ActionBar.DISPLAY_HOME_AS_UP); - // Initialize the database handler. `this` specifies the context. The two `null`s do not specify the database name or a `CursorFactory`. The `0` is to specify a database version, but that is set instead using a constant in `BookmarksDatabaseHelper`. + // Initialize the database handler. `this` specifies the context. The `0` is to specify a database version, but that is set instead using a constant in `BookmarksDatabaseHelper`. bookmarksDatabaseHelper = new BookmarksDatabaseHelper(this, null, null, 0); // Setup a matrix cursor for "All Folders" and "Home Folder". @@ -128,8 +137,8 @@ public class BookmarksDatabaseViewActivity extends AppCompatActivity implements matrixCursor.addRow(new Object[]{ALL_FOLDERS_DATABASE_ID, getString(R.string.all_folders)}); matrixCursor.addRow(new Object[]{HOME_FOLDER_DATABASE_ID, getString(R.string.home_folder)}); - // Get a `Cursor` with the list of all the folders. - Cursor foldersCursor = bookmarksDatabaseHelper.getAllFoldersCursor(); + // Get a cursor with the list of all the folders. + Cursor foldersCursor = bookmarksDatabaseHelper.getAllFolders(); // Combine `matrixCursor` and `foldersCursor`. MergeCursor foldersMergeCursor = new MergeCursor(new Cursor[]{matrixCursor, foldersCursor}); @@ -153,7 +162,7 @@ public class BookmarksDatabaseViewActivity extends AppCompatActivity implements Spinner folderSpinner = findViewById(R.id.spinner); folderSpinner.setAdapter(foldersCursorAdapter); - // Handle clicks on the spinner dropdown. + // Handle taps on the spinner dropdown. folderSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { @Override public void onItemSelected(AdapterView parent, View view, int position, long id) { @@ -180,7 +189,7 @@ public class BookmarksDatabaseViewActivity extends AppCompatActivity implements ListView bookmarksListView = findViewById(R.id.bookmarks_databaseview_listview); // Get a `Cursor` with the current contents of the bookmarks database. - bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor(); + bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarks(); // Setup a `CursorAdapter` with `this` context. `false` disables autoRequery. bookmarksCursorAdapter = new CursorAdapter(this, bookmarksCursor, false) { @@ -269,7 +278,7 @@ public class BookmarksDatabaseViewActivity extends AppCompatActivity implements // Set a listener to edit a bookmark when it is tapped. bookmarksListView.setOnItemClickListener((AdapterView parent, View view, int position, long id) -> { - // Convert the database ID to an `int`. + // Convert the database ID to an int. int databaseId = (int) id; // Show the edit bookmark or edit bookmark folder dialog. @@ -286,6 +295,218 @@ public class BookmarksDatabaseViewActivity extends AppCompatActivity implements editBookmarkDatabaseViewDialog.show(getSupportFragmentManager(), getResources().getString(R.string.edit_bookmark)); } }); + + // Handle long presses on the list view. + bookmarksListView.setMultiChoiceModeListener(new AbsListView.MultiChoiceModeListener() { + // Instantiate the common variables. + MenuItem selectAllMenuItem; + MenuItem deleteMenuItem; + boolean deletingBookmarks; + + @Override + public boolean onCreateActionMode(ActionMode mode, Menu menu) { + // Inflate the menu for the contextual app bar. + getMenuInflater().inflate(R.menu.bookmarks_databaseview_context_menu, menu); + + // Set the title. + mode.setTitle(R.string.bookmarks); + + // Get handles for the menu items. + selectAllMenuItem = menu.findItem(R.id.select_all); + deleteMenuItem = menu.findItem(R.id.delete); + + // Disable the delete menu item if a delete is pending. + deleteMenuItem.setEnabled(!deletingBookmarks); + + // Make it so. + return true; + } + + @Override + public boolean onPrepareActionMode(ActionMode mode, Menu menu) { + // Do nothing. + return false; + } + + @Override + public void onItemCheckedStateChanged(ActionMode mode, int position, long id, boolean checked) { + // Calculate the number of selected bookmarks. + int numberOfSelectedBookmarks = bookmarksListView.getCheckedItemCount(); + + // Adjust the ActionMode according to the number of selected bookmarks. + mode.setSubtitle(getString(R.string.selected) + " " + numberOfSelectedBookmarks); + + // Do not show the select all menu item if all the bookmarks are already checked. + if (bookmarksListView.getCheckedItemCount() == bookmarksListView.getCount()) { + selectAllMenuItem.setVisible(false); + } else { + selectAllMenuItem.setVisible(true); + } + + // Convert the database ID to an int. + int databaseId = (int) id; + + // If a folder was selected, also select all the contents. + if (checked && bookmarksDatabaseHelper.isFolder(databaseId)) { + selectAllBookmarksInFolder(databaseId); + } + + // Do not allow a bookmark to be deselected if the folder is selected. + if (!checked) { + // Get the folder name. + String folderName = bookmarksDatabaseHelper.getParentFolderName((int) id); + + // If the bookmark is not in the root folder, check to see if the folder is selected. + if (!folderName.isEmpty()) { + // Get the database ID of the folder. + int folderDatabaseId = bookmarksDatabaseHelper.getFolderDatabaseId(folderName); + + // Move the bookmarks cursor to the first position. + bookmarksCursor.moveToFirst(); + + // Initialize the folder position variable. + int folderPosition = -1; + + // Get the position of the folder in the bookmarks cursor. + while ((folderPosition < 0) && (bookmarksCursor.getPosition() < bookmarksCursor.getCount())) { + // Check if the folder database ID matches the bookmark database ID. + if (folderDatabaseId == bookmarksCursor.getInt((bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper._ID)))) { + // Get the folder position. + folderPosition = bookmarksCursor.getPosition(); + + // Check if the folder is selected. + if (bookmarksListView.isItemChecked(folderPosition)) { + // Reselect the bookmark. + bookmarksListView.setItemChecked(position, true); + + // Display a snackbar explaining why the bookmark cannot be deselected. + Snackbar.make(bookmarksListView, R.string.cannot_deselect_bookmark, Snackbar.LENGTH_LONG).show(); + } + } + + // Increment the bookmarks cursor. + bookmarksCursor.moveToNext(); + } + } + } + } + + @Override + public boolean onActionItemClicked(ActionMode mode, MenuItem item) { + switch (item.getItemId()) { + case R.id.select_all: + // Get the total number of bookmarks. + int numberOfBookmarks = bookmarksListView.getCount(); + + // Select them all. + for (int i = 0; i < numberOfBookmarks; i++) { + bookmarksListView.setItemChecked(i, true); + } + break; + + case R.id.delete: + // Set the deleting bookmarks flag, which prevents the delete menu item from being enabled until the current process finishes. + deletingBookmarks = true; + + // Get an array of the selected row IDs. + long[] selectedBookmarksIdsLongArray = bookmarksListView.getCheckedItemIds(); + + // Get an array of checked bookmarks. `.clone()` makes a copy that won't change if the list view is reloaded, which is needed for re-selecting the bookmarks on undelete. + SparseBooleanArray selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.getCheckedItemPositions().clone(); + + // Update the bookmarks cursor with the current contents of the bookmarks database except for the specified database IDs. + switch (currentFolderDatabaseId) { + // Get a cursor with all the folders. + case ALL_FOLDERS_DATABASE_ID: + if (sortByDisplayOrder) { + bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksByDisplayOrderExcept(selectedBookmarksIdsLongArray); + } else { + bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksExcept(selectedBookmarksIdsLongArray); + } + break; + + // Get a cursor for the home folder. + case HOME_FOLDER_DATABASE_ID: + if (sortByDisplayOrder) { + bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrderExcept(selectedBookmarksIdsLongArray, ""); + } else { + bookmarksCursor = bookmarksDatabaseHelper.getBookmarksExcept(selectedBookmarksIdsLongArray, ""); + } + break; + + // Display the selected folder. + default: + // Get a cursor for the selected folder. + if (sortByDisplayOrder) { + bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrderExcept(selectedBookmarksIdsLongArray, currentFolderName); + } else { + bookmarksCursor = bookmarksDatabaseHelper.getBookmarksExcept(selectedBookmarksIdsLongArray, currentFolderName); + } + } + + // Update the list view. + bookmarksCursorAdapter.changeCursor(bookmarksCursor); + + // Show a Snackbar with the number of deleted bookmarks. + bookmarksDeletedSnackbar = Snackbar.make(findViewById(R.id.bookmarks_databaseview_coordinatorlayout), + getString(R.string.bookmarks_deleted) + " " + selectedBookmarksIdsLongArray.length, Snackbar.LENGTH_LONG) + .setAction(R.string.undo, view -> { + // Do nothing because everything will be handled by `onDismissed()` below. + }) + .addCallback(new Snackbar.Callback() { + @Override + public void onDismissed(Snackbar snackbar, int event) { + switch (event) { + // The user pushed the `Undo` button. + case Snackbar.Callback.DISMISS_EVENT_ACTION: + // Update the bookmarks list view with the current contents of the bookmarks database, including the "deleted bookmarks. + updateBookmarksListView(); + + // Re-select the previously selected bookmarks. + for (int i = 0; i < selectedBookmarksPositionsSparseBooleanArray.size(); i++) { + bookmarksListView.setItemChecked(selectedBookmarksPositionsSparseBooleanArray.keyAt(i), true); + } + break; + + // The Snackbar was dismissed without the `Undo` button being pushed. + default: + // Delete each selected bookmark. + for (long databaseIdLong : selectedBookmarksIdsLongArray) { + // Convert `databaseIdLong` to an int. + int databaseIdInt = (int) databaseIdLong; + + // Delete the selected bookmark. + bookmarksDatabaseHelper.deleteBookmark(databaseIdInt); + } + } + + // Reset the deleting bookmarks flag. + deletingBookmarks = false; + + // Enable the delete menu item. + deleteMenuItem.setEnabled(true); + + // Close the activity if back has been pressed. + if (closeActivityAfterDismissingSnackbar) { + onBackPressed(); + } + } + }); + + // Show the Snackbar. + bookmarksDeletedSnackbar.show(); + break; + } + + // Consume the click. + return false; + } + + @Override + public void onDestroyActionMode(ActionMode mode) { + // Do nothing. + } + }); } @Override @@ -304,8 +525,8 @@ public class BookmarksDatabaseViewActivity extends AppCompatActivity implements switch (menuItemId) { case android.R.id.home: // The home arrow is identified as `android.R.id.home`, not just `R.id.home`. - // Return to `MainWebViewActivity`. - NavUtils.navigateUpFromSameTask(this); + // Exit the activity. + onBackPressed(); break; case R.id.options_menu_sort: @@ -345,24 +566,59 @@ public class BookmarksDatabaseViewActivity extends AppCompatActivity implements return true; } + @Override + public void onBackPressed() { + // Check to see if a snackbar is currently displayed. If so, it must be closed before existing so that a pending delete is completed before reloading the list view in the bookmarks activity. + if ((bookmarksDeletedSnackbar != null) && bookmarksDeletedSnackbar.isShown()) { // Close the bookmarks deleted snackbar before going home. + // Set the close flag. + closeActivityAfterDismissingSnackbar = true; + + // Dismiss the snackbar. + bookmarksDeletedSnackbar.dismiss(); + } else { // Go home immediately. + // Update the current folder in the bookmarks activity. + switch (currentFolderDatabaseId) { + case ALL_FOLDERS_DATABASE_ID: + // Load the home folder. + BookmarksActivity.currentFolder = ""; + break; + + case HOME_FOLDER_DATABASE_ID: + // Load the home folder. + BookmarksActivity.currentFolder = ""; + break; + + default: + // Load the current folder. + BookmarksActivity.currentFolder = currentFolderName; + } + + // Reload the bookmarks list view when returning to the bookmarks activity. + BookmarksActivity.restartFromBookmarksDatabaseViewActivity = true; + + // Exit the bookmarks database view activity. + super.onBackPressed(); + } + } + private void updateBookmarksListView() { // Populate the bookmarks list view based on the spinner selection. switch (currentFolderDatabaseId) { // Get a cursor with all the folders. case ALL_FOLDERS_DATABASE_ID: if (sortByDisplayOrder) { - bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursorByDisplayOrder(); + bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksByDisplayOrder(); } else { - bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor(); + bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarks(); } break; // Get a cursor for the home folder. case HOME_FOLDER_DATABASE_ID: if (sortByDisplayOrder) { - bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursorByDisplayOrder(""); + bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(""); } else { - bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor(""); + bookmarksCursor = bookmarksDatabaseHelper.getBookmarks(""); } break; @@ -370,9 +626,9 @@ public class BookmarksDatabaseViewActivity extends AppCompatActivity implements default: // Get a cursor for the selected folder. if (sortByDisplayOrder) { - bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursorByDisplayOrder(currentFolderName); + bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolderName); } else { - bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor(currentFolderName); + bookmarksCursor = bookmarksDatabaseHelper.getBookmarks(currentFolderName); } } @@ -380,6 +636,54 @@ public class BookmarksDatabaseViewActivity extends AppCompatActivity implements bookmarksCursorAdapter.changeCursor(bookmarksCursor); } + private void selectAllBookmarksInFolder(int folderId) { + // Get a handle for the bookmarks list view. + ListView bookmarksListView = findViewById(R.id.bookmarks_databaseview_listview); + + // Get the folder name. + String folderName = bookmarksDatabaseHelper.getFolderName(folderId); + + // Get a cursor with the contents of the folder. + Cursor folderCursor = bookmarksDatabaseHelper.getBookmarks(folderName); + + // Move to the beginning of the cursor. + folderCursor.moveToFirst(); + + while (folderCursor.getPosition() < folderCursor.getCount()) { + // Get the bookmark database ID. + int bookmarkId = folderCursor.getInt(folderCursor.getColumnIndex(BookmarksDatabaseHelper._ID)); + + // Move the bookmarks cursor to the first position. + bookmarksCursor.moveToFirst(); + + // Initialize the bookmark position variable. + int bookmarkPosition = -1; + + // Get the position of this bookmark in the bookmarks cursor. + while ((bookmarkPosition < 0) && (bookmarksCursor.getPosition() < bookmarksCursor.getCount())) { + // Check if the bookmark IDs match. + if (bookmarkId == bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper._ID))) { + // Get the bookmark position. + bookmarkPosition = bookmarksCursor.getPosition(); + + // If this bookmark is a folder, select all the bookmarks inside it. + if (bookmarksDatabaseHelper.isFolder(bookmarkId)) { + selectAllBookmarksInFolder(bookmarkId); + } + + // Select the bookmark. + bookmarksListView.setItemChecked(bookmarkPosition, true); + } + + // Increment the bookmarks cursor position. + bookmarksCursor.moveToNext(); + } + + // Move to the next position. + folderCursor.moveToNext(); + } + } + @Override public void onSaveBookmark(AppCompatDialogFragment dialogFragment, int selectedBookmarkDatabaseId) { // Get handles for the views from dialog fragment.