| /* |
| * Copyright (C) 2013 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.documentsui.dirlist; |
| |
| import static com.android.documentsui.Shared.DEBUG; |
| import static com.android.documentsui.State.MODE_GRID; |
| import static com.android.documentsui.State.MODE_LIST; |
| import static com.android.documentsui.State.SORT_ORDER_UNKNOWN; |
| import static com.android.documentsui.model.DocumentInfo.getCursorInt; |
| import static com.android.documentsui.model.DocumentInfo.getCursorString; |
| |
| import android.annotation.IntDef; |
| import android.annotation.StringRes; |
| import android.app.Activity; |
| import android.app.ActivityManager; |
| import android.app.AlertDialog; |
| import android.app.Fragment; |
| import android.app.FragmentManager; |
| import android.app.FragmentTransaction; |
| import android.app.LoaderManager.LoaderCallbacks; |
| import android.content.ClipData; |
| import android.content.Context; |
| import android.content.DialogInterface; |
| import android.content.Intent; |
| import android.content.Loader; |
| import android.database.Cursor; |
| import android.graphics.drawable.Drawable; |
| import android.net.Uri; |
| import android.os.AsyncTask; |
| import android.os.Bundle; |
| import android.os.Parcelable; |
| import android.provider.DocumentsContract; |
| import android.provider.DocumentsContract.Document; |
| import android.support.v13.view.DragStartHelper; |
| import android.support.v7.widget.GridLayoutManager; |
| import android.support.v7.widget.GridLayoutManager.SpanSizeLookup; |
| import android.support.v7.widget.RecyclerView; |
| import android.support.v7.widget.RecyclerView.OnItemTouchListener; |
| import android.support.v7.widget.RecyclerView.RecyclerListener; |
| import android.support.v7.widget.RecyclerView.ViewHolder; |
| import android.text.BidiFormatter; |
| import android.text.TextUtils; |
| import android.util.Log; |
| import android.util.SparseArray; |
| import android.view.ActionMode; |
| import android.view.ContextMenu; |
| import android.view.DragEvent; |
| import android.view.GestureDetector; |
| import android.view.HapticFeedbackConstants; |
| import android.view.KeyEvent; |
| import android.view.LayoutInflater; |
| import android.view.Menu; |
| import android.view.MenuInflater; |
| import android.view.MenuItem; |
| import android.view.MotionEvent; |
| import android.view.View; |
| import android.view.View.OnTouchListener; |
| import android.view.ViewGroup; |
| import android.widget.ImageView; |
| import android.widget.TextView; |
| import android.widget.Toolbar; |
| |
| import com.android.documentsui.BaseActivity; |
| import com.android.documentsui.DirectoryLoader; |
| import com.android.documentsui.DirectoryResult; |
| import com.android.documentsui.DocumentClipper; |
| import com.android.documentsui.DocumentClipper.ClipDetails; |
| import com.android.documentsui.DocumentsActivity; |
| import com.android.documentsui.DocumentsApplication; |
| import com.android.documentsui.Events; |
| import com.android.documentsui.Events.MotionInputEvent; |
| import com.android.documentsui.ItemDragListener; |
| import com.android.documentsui.MenuManager; |
| import com.android.documentsui.Menus; |
| import com.android.documentsui.MessageBar; |
| import com.android.documentsui.Metrics; |
| import com.android.documentsui.MimePredicate; |
| import com.android.documentsui.R; |
| import com.android.documentsui.RecentsLoader; |
| import com.android.documentsui.RetainedState; |
| import com.android.documentsui.RootsCache; |
| import com.android.documentsui.Shared; |
| import com.android.documentsui.Snackbars; |
| import com.android.documentsui.State; |
| import com.android.documentsui.State.ViewMode; |
| import com.android.documentsui.dirlist.MultiSelectManager.Selection; |
| import com.android.documentsui.model.DocumentInfo; |
| import com.android.documentsui.model.DocumentStack; |
| import com.android.documentsui.model.RootInfo; |
| import com.android.documentsui.services.FileOperationService; |
| import com.android.documentsui.services.FileOperationService.OpType; |
| import com.android.documentsui.services.FileOperations; |
| |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Objects; |
| |
| import javax.annotation.Nullable; |
| |
| /** |
| * Display the documents inside a single directory. |
| */ |
| public class DirectoryFragment extends Fragment |
| implements DocumentsAdapter.Environment, LoaderCallbacks<DirectoryResult>, |
| ItemDragListener.DragHost { |
| |
| @IntDef(flag = true, value = { |
| TYPE_NORMAL, |
| TYPE_RECENT_OPEN |
| }) |
| @Retention(RetentionPolicy.SOURCE) |
| public @interface ResultType {} |
| public static final int TYPE_NORMAL = 1; |
| public static final int TYPE_RECENT_OPEN = 2; |
| |
| @IntDef(flag = true, value = { |
| REQUEST_COPY_DESTINATION |
| }) |
| @Retention(RetentionPolicy.SOURCE) |
| public @interface RequestCode {} |
| public static final int REQUEST_COPY_DESTINATION = 1; |
| |
| private static final String TAG = "DirectoryFragment"; |
| private static final int LOADER_ID = 42; |
| |
| private Model mModel; |
| private MultiSelectManager mSelectionManager; |
| private Model.UpdateListener mModelUpdateListener = new ModelUpdateListener(); |
| private ItemEventListener mItemEventListener = new ItemEventListener(); |
| private SelectionModeListener mSelectionModeListener; |
| private FocusManager mFocusManager; |
| |
| private IconHelper mIconHelper; |
| |
| private View mEmptyView; |
| private RecyclerView mRecView; |
| private ListeningGestureDetector mGestureDetector; |
| |
| private String mStateKey; |
| |
| private int mLastSortOrder = SORT_ORDER_UNKNOWN; |
| private DocumentsAdapter mAdapter; |
| private FragmentTuner mTuner; |
| private DocumentClipper mClipper; |
| private GridLayoutManager mLayout; |
| private int mColumnCount = 1; // This will get updated when layout changes. |
| |
| private LayoutInflater mInflater; |
| private MessageBar mMessageBar; |
| private View mProgressBar; |
| |
| // Directory fragment state is defined by: root, document, query, type, selection |
| private @ResultType int mType = TYPE_NORMAL; |
| private RootInfo mRoot; |
| private DocumentInfo mDocument; |
| private String mQuery = null; |
| // Note, we use !null to indicate that selection was restored (from rotation). |
| // So don't fiddle with this field unless you've got the bigger picture in mind. |
| private @Nullable Selection mRestoredSelection = null; |
| private boolean mSearchMode = false; |
| |
| private @Nullable BandController mBandController; |
| private @Nullable ActionMode mActionMode; |
| |
| private DirectoryDragListener mOnDragListener; |
| private MenuManager mMenuManager; |
| |
| /** |
| * A callback to show snackbar at the beginning of moving and copying. |
| */ |
| private final FileOperations.Callback mFileOpCallback = (status, opType, docCount) -> { |
| if (status == FileOperations.Callback.STATUS_REJECTED) { |
| Snackbars.showPasteFailed(getActivity()); |
| return; |
| } |
| |
| if (docCount == 0) { |
| // Nothing has been pasted, so there is no need to show a snackbar. |
| return; |
| } |
| |
| switch (opType) { |
| case FileOperationService.OPERATION_MOVE: |
| Snackbars.showMove(getActivity(), docCount); |
| break; |
| case FileOperationService.OPERATION_COPY: |
| Snackbars.showCopy(getActivity(), docCount); |
| break; |
| default: |
| throw new UnsupportedOperationException("Unsupported Operation: " + opType); |
| } |
| }; |
| |
| @Override |
| public View onCreateView( |
| LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { |
| mInflater = inflater; |
| final View view = inflater.inflate(R.layout.fragment_directory, container, false); |
| |
| mMessageBar = MessageBar.create(getChildFragmentManager()); |
| mProgressBar = view.findViewById(R.id.progressbar); |
| mEmptyView = view.findViewById(android.R.id.empty); |
| mRecView = (RecyclerView) view.findViewById(R.id.dir_list); |
| mRecView.setRecyclerListener( |
| new RecyclerListener() { |
| @Override |
| public void onViewRecycled(ViewHolder holder) { |
| cancelThumbnailTask(holder.itemView); |
| } |
| }); |
| |
| mRecView.setItemAnimator(new DirectoryItemAnimator(getActivity())); |
| |
| mOnDragListener = new DirectoryDragListener(this); |
| |
| // Make the recycler and the empty views responsive to drop events. |
| mRecView.setOnDragListener(mOnDragListener); |
| mEmptyView.setOnDragListener(mOnDragListener); |
| |
| return view; |
| } |
| |
| @Override |
| public void onDestroyView() { |
| mSelectionManager.clearSelection(); |
| |
| // Cancel any outstanding thumbnail requests |
| final int count = mRecView.getChildCount(); |
| for (int i = 0; i < count; i++) { |
| final View view = mRecView.getChildAt(i); |
| cancelThumbnailTask(view); |
| } |
| |
| super.onDestroyView(); |
| } |
| |
| @Override |
| public void onActivityCreated(Bundle savedInstanceState) { |
| super.onActivityCreated(savedInstanceState); |
| |
| final Context context = getActivity(); |
| final State state = getDisplayState(); |
| |
| // Read arguments when object created for the first time. |
| // Restore state if fragment recreated. |
| Bundle args = savedInstanceState == null ? getArguments() : savedInstanceState; |
| mRoot = args.getParcelable(Shared.EXTRA_ROOT); |
| mDocument = args.getParcelable(Shared.EXTRA_DOC); |
| mStateKey = buildStateKey(mRoot, mDocument); |
| mQuery = args.getString(Shared.EXTRA_QUERY); |
| mType = args.getInt(Shared.EXTRA_TYPE); |
| mSearchMode = args.getBoolean(Shared.EXTRA_SEARCH_MODE); |
| |
| // Restore any selection we may have squirreled away in retained state. |
| @Nullable RetainedState retained = getBaseActivity().getRetainedState(); |
| if (retained != null && retained.hasSelection()) { |
| // We claim the selection for ourselves and null it out once used |
| // so we don't have a rando selection hanging around in RetainedState. |
| mRestoredSelection = retained.selection; |
| retained.selection = null; |
| } |
| |
| mIconHelper = new IconHelper(context, MODE_GRID); |
| |
| mAdapter = new SectionBreakDocumentsAdapterWrapper( |
| this, new ModelBackedDocumentsAdapter(this, mIconHelper)); |
| |
| mRecView.setAdapter(mAdapter); |
| |
| mLayout = new GridLayoutManager(getContext(), mColumnCount); |
| SpanSizeLookup lookup = mAdapter.createSpanSizeLookup(); |
| if (lookup != null) { |
| mLayout.setSpanSizeLookup(lookup); |
| } |
| mRecView.setLayoutManager(mLayout); |
| |
| mGestureDetector = |
| new ListeningGestureDetector(this.getContext(), mDragHelper, new GestureListener()); |
| |
| mRecView.addOnItemTouchListener(mGestureDetector); |
| mEmptyView.setOnTouchListener(mGestureDetector); |
| |
| // TODO: instead of inserting the view into the constructor, extract listener-creation code |
| // and set the listener on the view after the fact. Then the view doesn't need to be passed |
| // into the selection manager. |
| mSelectionManager = new MultiSelectManager( |
| mRecView, |
| mAdapter, |
| state.allowMultiple |
| ? MultiSelectManager.MODE_MULTIPLE |
| : MultiSelectManager.MODE_SINGLE, |
| null); |
| |
| if (state.allowMultiple) { |
| mBandController = new BandController(mRecView, mAdapter, mSelectionManager); |
| } |
| |
| mSelectionModeListener = new SelectionModeListener(); |
| mSelectionManager.addCallback(mSelectionModeListener); |
| |
| mModel = new Model(); |
| mModel.addUpdateListener(mAdapter); |
| mModel.addUpdateListener(mModelUpdateListener); |
| |
| // Make sure this is done after the RecyclerView is set up. |
| mFocusManager = new FocusManager(context, mRecView, mModel); |
| |
| final BaseActivity activity = getBaseActivity(); |
| mTuner = activity.createFragmentTuner(); |
| mMenuManager = activity.getMenuManager(); |
| mClipper = DocumentsApplication.getDocumentClipper(getContext()); |
| |
| final ActivityManager am = (ActivityManager) context.getSystemService( |
| Context.ACTIVITY_SERVICE); |
| boolean svelte = am.isLowRamDevice() && (mType == TYPE_RECENT_OPEN); |
| mIconHelper.setThumbnailsEnabled(!svelte); |
| |
| // Kick off loader at least once |
| getLoaderManager().restartLoader(LOADER_ID, null, this); |
| } |
| |
| public void retainState(RetainedState state) { |
| state.selection = mSelectionManager.getSelection(new Selection()); |
| } |
| |
| @Override |
| public void onSaveInstanceState(Bundle outState) { |
| super.onSaveInstanceState(outState); |
| |
| outState.putInt(Shared.EXTRA_TYPE, mType); |
| outState.putParcelable(Shared.EXTRA_ROOT, mRoot); |
| outState.putParcelable(Shared.EXTRA_DOC, mDocument); |
| outState.putString(Shared.EXTRA_QUERY, mQuery); |
| outState.putBoolean(Shared.EXTRA_SEARCH_MODE, mSearchMode); |
| } |
| |
| @Override |
| public void onActivityResult(@RequestCode int requestCode, int resultCode, Intent data) { |
| switch (requestCode) { |
| case REQUEST_COPY_DESTINATION: |
| handleCopyResult(resultCode, data); |
| break; |
| default: |
| throw new UnsupportedOperationException("Unknown request code: " + requestCode); |
| } |
| } |
| |
| @Override |
| public void onCreateContextMenu(ContextMenu menu, |
| View v, |
| ContextMenu.ContextMenuInfo menuInfo) { |
| super.onCreateContextMenu(menu, v, menuInfo); |
| MenuInflater inflater = getActivity().getMenuInflater(); |
| inflater.inflate(R.menu.context_menu, menu); |
| |
| menu.add(Menu.NONE, R.id.menu_create_dir, Menu.NONE, R.string.menu_create_dir); |
| menu.add(Menu.NONE, R.id.menu_delete, Menu.NONE, R.string.menu_delete); |
| menu.add(Menu.NONE, R.id.menu_rename, Menu.NONE, R.string.menu_rename); |
| |
| if (v == mRecView || v == mEmptyView) { |
| mMenuManager.updateContextMenu(menu, null, getBaseActivity().getDirectoryDetails()); |
| } else { |
| mMenuManager.updateContextMenu(menu, mSelectionModeListener, |
| getBaseActivity().getDirectoryDetails()); |
| } |
| } |
| |
| @Override |
| public boolean onContextItemSelected(MenuItem item) { |
| return handleMenuItemClick(item); |
| } |
| |
| private void handleCopyResult(int resultCode, Intent data) { |
| if (resultCode == Activity.RESULT_CANCELED || data == null) { |
| // User pressed the back button or otherwise cancelled the destination pick. Don't |
| // proceed with the copy. |
| return; |
| } |
| |
| @OpType int operationType = data.getIntExtra( |
| FileOperationService.EXTRA_OPERATION, |
| FileOperationService.OPERATION_COPY); |
| |
| FileOperations.start( |
| getContext(), |
| getDisplayState().selectedDocumentsForCopy, |
| getDisplayState().stack.peek(), |
| (DocumentStack) data.getParcelableExtra(Shared.EXTRA_STACK), |
| operationType, |
| mFileOpCallback); |
| } |
| |
| protected boolean onDoubleTap(MotionInputEvent event) { |
| if (event.isMouseEvent()) { |
| String id = getModelId(event); |
| if (id != null) { |
| return handleViewItem(id); |
| } |
| } |
| return false; |
| } |
| |
| protected boolean onRightClick(MotionEvent e) { |
| // First get target to see if it's a blank window or a file/doc |
| final MotionInputEvent event = MotionInputEvent.obtain(e, mRecView); |
| try { |
| if (event.getItemPosition() != RecyclerView.NO_POSITION) { |
| final DocumentHolder holder = getTarget(event); |
| String modelId = getModelId(holder.itemView); |
| if (!mSelectionManager.getSelection().contains(modelId)) { |
| mSelectionManager.clearSelection(); |
| // Set selection on the one single item |
| List<String> ids = Collections.singletonList(modelId); |
| mSelectionManager.setItemsSelected(ids, true); |
| } |
| |
| // We are registering for context menu here so long-press doesn't trigger this |
| // floating context menu, and then quickly unregister right afterwards |
| registerForContextMenu(holder.itemView); |
| mRecView.showContextMenuForChild(holder.itemView, |
| e.getX() - holder.itemView.getLeft(), e.getY() - holder.itemView.getTop()); |
| unregisterForContextMenu(holder.itemView); |
| } |
| // If there was no corresponding item pos, that means user right-clicked on the blank |
| // pane |
| // We would want to show different options then, and not select any item |
| // The blank pane could be the recyclerView or the emptyView, so we need to register |
| // according to whichever one is visible |
| else if (mEmptyView.getVisibility() == View.VISIBLE) { |
| registerForContextMenu(mEmptyView); |
| mEmptyView.showContextMenu(e.getX(), e.getY()); |
| unregisterForContextMenu(mEmptyView); |
| return true; |
| } else { |
| registerForContextMenu(mRecView); |
| mRecView.showContextMenu(e.getX(), e.getY()); |
| unregisterForContextMenu(mRecView); |
| } |
| } finally { |
| event.recycle(); |
| } |
| return true; |
| } |
| |
| private boolean handleViewItem(String id) { |
| final Cursor cursor = mModel.getItem(id); |
| |
| if (cursor == null) { |
| Log.w(TAG, "Can't view item. Can't obtain cursor for modeId" + id); |
| return false; |
| } |
| |
| final String docMimeType = getCursorString(cursor, Document.COLUMN_MIME_TYPE); |
| final int docFlags = getCursorInt(cursor, Document.COLUMN_FLAGS); |
| if (mTuner.isDocumentEnabled(docMimeType, docFlags)) { |
| final DocumentInfo doc = DocumentInfo.fromDirectoryCursor(cursor); |
| getBaseActivity().onDocumentPicked(doc, mModel); |
| mSelectionManager.clearSelection(); |
| return true; |
| } |
| return false; |
| } |
| |
| @Override |
| public void onStop() { |
| super.onStop(); |
| |
| // Remember last scroll location |
| final SparseArray<Parcelable> container = new SparseArray<Parcelable>(); |
| getView().saveHierarchyState(container); |
| final State state = getDisplayState(); |
| state.dirState.put(mStateKey, container); |
| } |
| |
| public void onDisplayStateChanged() { |
| updateDisplayState(); |
| } |
| |
| public void onSortOrderChanged() { |
| // Sort order is implemented as a sorting wrapper around directory |
| // results. So when sort order changes, we force a reload of the directory. |
| getLoaderManager().restartLoader(LOADER_ID, null, this); |
| } |
| |
| public void onViewModeChanged() { |
| // Mode change is just visual change; no need to kick loader. |
| updateDisplayState(); |
| } |
| |
| private void updateDisplayState() { |
| State state = getDisplayState(); |
| updateLayout(state.derivedMode); |
| mRecView.setAdapter(mAdapter); |
| } |
| |
| /** |
| * Updates the layout after the view mode switches. |
| * @param mode The new view mode. |
| */ |
| private void updateLayout(@ViewMode int mode) { |
| mColumnCount = calculateColumnCount(mode); |
| if (mLayout != null) { |
| mLayout.setSpanCount(mColumnCount); |
| } |
| |
| int pad = getDirectoryPadding(mode); |
| mRecView.setPadding(pad, pad, pad, pad); |
| mRecView.requestLayout(); |
| if (mBandController != null) { |
| mBandController.handleLayoutChanged(); |
| } |
| mIconHelper.setViewMode(mode); |
| } |
| |
| private int calculateColumnCount(@ViewMode int mode) { |
| if (mode == MODE_LIST) { |
| // List mode is a "grid" with 1 column. |
| return 1; |
| } |
| |
| int cellWidth = getResources().getDimensionPixelSize(R.dimen.grid_width); |
| int cellMargin = 2 * getResources().getDimensionPixelSize(R.dimen.grid_item_margin); |
| int viewPadding = mRecView.getPaddingLeft() + mRecView.getPaddingRight(); |
| |
| // RecyclerView sometimes gets a width of 0 (see b/27150284). Clamp so that we always lay |
| // out the grid with at least 2 columns. |
| int columnCount = Math.max(2, |
| (mRecView.getWidth() - viewPadding) / (cellWidth + cellMargin)); |
| |
| return columnCount; |
| } |
| |
| private int getDirectoryPadding(@ViewMode int mode) { |
| switch (mode) { |
| case MODE_GRID: |
| return getResources().getDimensionPixelSize(R.dimen.grid_container_padding); |
| case MODE_LIST: |
| return getResources().getDimensionPixelSize(R.dimen.list_container_padding); |
| default: |
| throw new IllegalArgumentException("Unsupported layout mode: " + mode); |
| } |
| } |
| |
| @Override |
| public int getColumnCount() { |
| return mColumnCount; |
| } |
| |
| // Support method to replace getOwner().foo() with something |
| // slightly less clumsy like: getOwner().foo(). |
| private BaseActivity getBaseActivity() { |
| return (BaseActivity) getActivity(); |
| } |
| |
| /** |
| * Manages the integration between our ActionMode and MultiSelectManager, initiating |
| * ActionMode when there is a selection, canceling it when there is no selection, |
| * and clearing selection when action mode is explicitly exited by the user. |
| */ |
| private final class SelectionModeListener implements MultiSelectManager.Callback, |
| ActionMode.Callback, MenuManager.SelectionDetails { |
| |
| private Selection mSelected = new Selection(); |
| |
| // Partial files are files that haven't been fully downloaded. |
| private int mPartialCount = 0; |
| private int mDirectoryCount = 0; |
| private int mNoDeleteCount = 0; |
| private int mNoRenameCount = 0; |
| |
| private Menu mMenu; |
| |
| @Override |
| public boolean onBeforeItemStateChange(String modelId, boolean selected) { |
| if (selected) { |
| final Cursor cursor = mModel.getItem(modelId); |
| if (cursor == null) { |
| Log.w(TAG, "Can't obtain cursor for modelId: " + modelId); |
| return false; |
| } |
| |
| final String docMimeType = getCursorString(cursor, Document.COLUMN_MIME_TYPE); |
| final int docFlags = getCursorInt(cursor, Document.COLUMN_FLAGS); |
| if (!mTuner.canSelectType(docMimeType, docFlags)) { |
| return false; |
| } |
| return mTuner.canSelectType(docMimeType, docFlags); |
| } |
| return true; |
| } |
| |
| @Override |
| public void onItemStateChanged(String modelId, boolean selected) { |
| final Cursor cursor = mModel.getItem(modelId); |
| if (cursor == null) { |
| Log.w(TAG, "Model returned null cursor for document: " + modelId |
| + ". Ignoring state changed event."); |
| return; |
| } |
| |
| // TODO: Should this be happening in onSelectionChanged? Technically this callback is |
| // triggered on "silent" selection updates (i.e. we might be reacting to unfinalized |
| // selection changes here) |
| final String mimeType = getCursorString(cursor, Document.COLUMN_MIME_TYPE); |
| if (MimePredicate.isDirectoryType(mimeType)) { |
| mDirectoryCount += selected ? 1 : -1; |
| } |
| |
| final int docFlags = getCursorInt(cursor, Document.COLUMN_FLAGS); |
| if ((docFlags & Document.FLAG_PARTIAL) != 0) { |
| mPartialCount += selected ? 1 : -1; |
| } |
| if ((docFlags & Document.FLAG_SUPPORTS_DELETE) == 0) { |
| mNoDeleteCount += selected ? 1 : -1; |
| } |
| if ((docFlags & Document.FLAG_SUPPORTS_RENAME) == 0) { |
| mNoRenameCount += selected ? 1 : -1; |
| } |
| } |
| |
| @Override |
| public void onSelectionChanged() { |
| mSelectionManager.getSelection(mSelected); |
| if (mSelected.size() > 0) { |
| if (DEBUG) Log.d(TAG, "Maybe starting action mode."); |
| if (mActionMode == null) { |
| if (DEBUG) Log.d(TAG, "Yeah. Starting action mode."); |
| mActionMode = getActivity().startActionMode(this); |
| } |
| updateActionMenu(); |
| } else { |
| if (DEBUG) Log.d(TAG, "Finishing action mode."); |
| if (mActionMode != null) { |
| mActionMode.finish(); |
| } |
| } |
| |
| if (mActionMode != null) { |
| assert(!mSelected.isEmpty()); |
| final String title = Shared.getQuantityString(getActivity(), |
| R.plurals.elements_selected, mSelected.size()); |
| mActionMode.setTitle(title); |
| mRecView.announceForAccessibility(title); |
| } |
| } |
| |
| // Called when the user exits the action mode |
| @Override |
| public void onDestroyActionMode(ActionMode mode) { |
| if (DEBUG) Log.d(TAG, "Handling action mode destroyed."); |
| mActionMode = null; |
| // clear selection |
| mSelectionManager.clearSelection(); |
| mSelected.clear(); |
| |
| mDirectoryCount = 0; |
| mPartialCount = 0; |
| mNoDeleteCount = 0; |
| mNoRenameCount = 0; |
| |
| // Re-enable TalkBack for the toolbars, as they are no longer covered by action mode. |
| final Toolbar toolbar = (Toolbar) getActivity().findViewById(R.id.toolbar); |
| toolbar.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_AUTO); |
| |
| // This toolbar is not present in the fixed_layout |
| final Toolbar rootsToolbar = (Toolbar) getActivity().findViewById(R.id.roots_toolbar); |
| if (rootsToolbar != null) { |
| rootsToolbar.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_AUTO); |
| } |
| } |
| |
| @Override |
| public boolean onCreateActionMode(ActionMode mode, Menu menu) { |
| if (mRestoredSelection != null) { |
| // This is a careful little song and dance to avoid haptic feedback |
| // when selection has been restored after rotation. We're |
| // also responsible for cleaning up restored selection so the |
| // object dones't unnecessarily hang around. |
| mRestoredSelection = null; |
| } else { |
| mRecView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); |
| } |
| |
| int size = mSelectionManager.getSelection().size(); |
| mode.getMenuInflater().inflate(R.menu.mode_directory, menu); |
| mode.setTitle(TextUtils.formatSelectedCount(size)); |
| |
| if (size > 0) { |
| // Hide the toolbars if action mode is enabled, so TalkBack doesn't navigate to |
| // these controls when using linear navigation. |
| final Toolbar toolbar = (Toolbar) getActivity().findViewById(R.id.toolbar); |
| toolbar.setImportantForAccessibility( |
| View.IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS); |
| |
| // This toolbar is not present in the fixed_layout |
| final Toolbar rootsToolbar = (Toolbar) getActivity().findViewById( |
| R.id.roots_toolbar); |
| if (rootsToolbar != null) { |
| rootsToolbar.setImportantForAccessibility( |
| View.IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS); |
| } |
| return true; |
| } |
| |
| return false; |
| } |
| |
| @Override |
| public boolean onPrepareActionMode(ActionMode mode, Menu menu) { |
| mMenu = menu; |
| updateActionMenu(); |
| return true; |
| } |
| |
| @Override |
| public boolean containsDirectories() { |
| return mDirectoryCount > 0; |
| } |
| |
| @Override |
| public boolean containsPartialFiles() { |
| return mPartialCount > 0; |
| } |
| |
| @Override |
| public boolean canDelete() { |
| return mNoDeleteCount == 0; |
| } |
| |
| @Override |
| public boolean canRename() { |
| return mNoRenameCount == 0 && mSelectionManager.getSelection().size() == 1; |
| } |
| |
| private void updateActionMenu() { |
| assert(mMenu != null); |
| mMenuManager.updateActionMenu(mMenu, this); |
| Menus.disableHiddenItems(mMenu); |
| } |
| |
| @Override |
| public boolean onActionItemClicked(ActionMode mode, MenuItem item) { |
| return handleMenuItemClick(item); |
| } |
| } |
| |
| private boolean handleMenuItemClick(MenuItem item) { |
| Selection selection = mSelectionManager.getSelection(new Selection()); |
| |
| switch (item.getItemId()) { |
| case R.id.menu_open: |
| openDocuments(selection); |
| mActionMode.finish(); |
| return true; |
| |
| case R.id.menu_share: |
| shareDocuments(selection); |
| // TODO: Only finish selection if share action is completed. |
| mActionMode.finish(); |
| return true; |
| |
| case R.id.menu_delete: |
| // deleteDocuments will end action mode if the documents are deleted. |
| // It won't end action mode if user cancels the delete. |
| deleteDocuments(selection); |
| return true; |
| |
| case R.id.menu_copy_to: |
| transferDocuments(selection, FileOperationService.OPERATION_COPY); |
| // TODO: Only finish selection mode if copy-to is not canceled. |
| // Need to plum down into handling the way we do with deleteDocuments. |
| mActionMode.finish(); |
| return true; |
| |
| case R.id.menu_move_to: |
| // Exit selection mode first, so we avoid deselecting deleted documents. |
| mActionMode.finish(); |
| transferDocuments(selection, FileOperationService.OPERATION_MOVE); |
| return true; |
| |
| case R.id.menu_cut_to_clipboard: |
| cutSelectedToClipboard(); |
| return true; |
| |
| case R.id.menu_copy_to_clipboard: |
| copySelectedToClipboard(); |
| return true; |
| |
| case R.id.menu_paste_from_clipboard: |
| pasteFromClipboard(); |
| return true; |
| |
| case R.id.menu_select_all: |
| selectAllFiles(); |
| return true; |
| |
| case R.id.menu_rename: |
| // Exit selection mode first, so we avoid deselecting deleted |
| // (renamed) documents. |
| mActionMode.finish(); |
| renameDocuments(selection); |
| return true; |
| |
| default: |
| // See if BaseActivity can handle this particular MenuItem |
| if (!getBaseActivity().onOptionsItemSelected(item)) { |
| if (DEBUG) Log.d(TAG, "Unhandled menu item selected: " + item); |
| return false; |
| } |
| return true; |
| } |
| } |
| |
| public final boolean onBackPressed() { |
| if (mSelectionManager.hasSelection()) { |
| if (DEBUG) Log.d(TAG, "Clearing selection on selection manager."); |
| mSelectionManager.clearSelection(); |
| return true; |
| } |
| return false; |
| } |
| |
| private void cancelThumbnailTask(View view) { |
| final ImageView iconThumb = (ImageView) view.findViewById(R.id.icon_thumb); |
| if (iconThumb != null) { |
| mIconHelper.stopLoading(iconThumb); |
| } |
| } |
| |
| private void openDocuments(final Selection selected) { |
| Metrics.logUserAction(getContext(), Metrics.USER_ACTION_OPEN); |
| |
| new GetDocumentsTask() { |
| @Override |
| void onDocumentsReady(List<DocumentInfo> docs) { |
| // TODO: Implement support in Files activity for opening multiple docs. |
| BaseActivity.get(DirectoryFragment.this).onDocumentsPicked(docs); |
| } |
| }.execute(selected); |
| } |
| |
| private void shareDocuments(final Selection selected) { |
| Metrics.logUserAction(getContext(), Metrics.USER_ACTION_SHARE); |
| |
| new GetDocumentsTask() { |
| @Override |
| void onDocumentsReady(List<DocumentInfo> docs) { |
| Intent intent; |
| |
| // Filter out directories and virtual files - those can't be shared. |
| List<DocumentInfo> docsForSend = new ArrayList<>(); |
| for (DocumentInfo doc: docs) { |
| if (!doc.isDirectory() && !doc.isVirtualDocument()) { |
| docsForSend.add(doc); |
| } |
| } |
| |
| if (docsForSend.size() == 1) { |
| final DocumentInfo doc = docsForSend.get(0); |
| |
| intent = new Intent(Intent.ACTION_SEND); |
| intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); |
| intent.addCategory(Intent.CATEGORY_DEFAULT); |
| intent.setType(doc.mimeType); |
| intent.putExtra(Intent.EXTRA_STREAM, doc.derivedUri); |
| |
| } else if (docsForSend.size() > 1) { |
| intent = new Intent(Intent.ACTION_SEND_MULTIPLE); |
| intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); |
| intent.addCategory(Intent.CATEGORY_DEFAULT); |
| |
| final ArrayList<String> mimeTypes = new ArrayList<>(); |
| final ArrayList<Uri> uris = new ArrayList<>(); |
| for (DocumentInfo doc : docsForSend) { |
| mimeTypes.add(doc.mimeType); |
| uris.add(doc.derivedUri); |
| } |
| |
| intent.setType(findCommonMimeType(mimeTypes)); |
| intent.putParcelableArrayListExtra(Intent.EXTRA_STREAM, uris); |
| |
| } else { |
| return; |
| } |
| |
| intent = Intent.createChooser(intent, getActivity().getText(R.string.share_via)); |
| startActivity(intent); |
| } |
| }.execute(selected); |
| } |
| |
| private String generateDeleteMessage(final List<DocumentInfo> docs) { |
| String message; |
| int dirsCount = 0; |
| |
| for (DocumentInfo doc : docs) { |
| if (doc.isDirectory()) { |
| ++dirsCount; |
| } |
| } |
| |
| if (docs.size() == 1) { |
| // Deleteing 1 file xor 1 folder in cwd |
| |
| // Address b/28772371, where including user strings in message can result in |
| // broken bidirectional support. |
| String displayName = BidiFormatter.getInstance().unicodeWrap(docs.get(0).displayName); |
| message = dirsCount == 0 |
| ? getActivity().getString(R.string.delete_filename_confirmation_message, |
| displayName) |
| : getActivity().getString(R.string.delete_foldername_confirmation_message, |
| displayName); |
| } else if (dirsCount == 0) { |
| // Deleting only files in cwd |
| message = Shared.getQuantityString(getActivity(), |
| R.plurals.delete_files_confirmation_message, docs.size()); |
| } else if (dirsCount == docs.size()) { |
| // Deleting only folders in cwd |
| message = Shared.getQuantityString(getActivity(), |
| R.plurals.delete_folders_confirmation_message, docs.size()); |
| } else { |
| // Deleting mixed items (files and folders) in cwd |
| message = Shared.getQuantityString(getActivity(), |
| R.plurals.delete_items_confirmation_message, docs.size()); |
| } |
| return message; |
| } |
| |
| private void deleteDocuments(final Selection selected) { |
| Metrics.logUserAction(getContext(), Metrics.USER_ACTION_DELETE); |
| |
| assert(!selected.isEmpty()); |
| |
| final DocumentInfo srcParent = getDisplayState().stack.peek(); |
| new GetDocumentsTask() { |
| @Override |
| void onDocumentsReady(final List<DocumentInfo> docs) { |
| |
| TextView message = |
| (TextView) mInflater.inflate(R.layout.dialog_delete_confirmation, null); |
| message.setText(generateDeleteMessage(docs)); |
| |
| // For now, we implement this dialog NOT |
| // as a fragment (which can survive rotation and have its own state), |
| // but as a simple runtime dialog. So rotating a device with an |
| // active delete dialog...results in that dialog disappearing. |
| // We can do better, but don't have cycles for it now. |
| new AlertDialog.Builder(getActivity()) |
| .setView(message) |
| .setPositiveButton( |
| android.R.string.ok, |
| new DialogInterface.OnClickListener() { |
| @Override |
| public void onClick(DialogInterface dialog, int id) { |
| // Finish selection mode first which clears selection so we |
| // don't end up trying to deselect deleted documents. |
| // This is done here, rather in the onActionItemClicked |
| // so we can avoid de-selecting items in the case where |
| // the user cancels the delete. |
| if (mActionMode != null) { |
| mActionMode.finish(); |
| } else { |
| Log.w(TAG, "Action mode is null before deleting documents."); |
| } |
| |
| FileOperations.delete( |
| getActivity(), docs, srcParent, getDisplayState().stack); |
| } |
| }) |
| .setNegativeButton(android.R.string.cancel, null) |
| .show(); |
| } |
| }.execute(selected); |
| } |
| |
| private void transferDocuments(final Selection selected, final @OpType int mode) { |
| if(mode == FileOperationService.OPERATION_COPY) { |
| Metrics.logUserAction(getContext(), Metrics.USER_ACTION_COPY_TO); |
| } else if (mode == FileOperationService.OPERATION_MOVE) { |
| Metrics.logUserAction(getContext(), Metrics.USER_ACTION_MOVE_TO); |
| } |
| |
| // Pop up a dialog to pick a destination. This is inadequate but works for now. |
| // TODO: Implement a picker that is to spec. |
| final Intent intent = new Intent( |
| Shared.ACTION_PICK_COPY_DESTINATION, |
| Uri.EMPTY, |
| getActivity(), |
| DocumentsActivity.class); |
| |
| |
| // Relay any config overrides bits present in the original intent. |
| Intent original = getActivity().getIntent(); |
| if (original != null && original.hasExtra(Shared.EXTRA_PRODUCTIVITY_MODE)) { |
| intent.putExtra( |
| Shared.EXTRA_PRODUCTIVITY_MODE, |
| original.getBooleanExtra(Shared.EXTRA_PRODUCTIVITY_MODE, false)); |
| } |
| |
| // Set an appropriate title on the drawer when it is shown in the picker. |
| // Coupled with the fact that we auto-open the drawer for copy/move operations |
| // it should basically be the thing people see first. |
| int drawerTitleId = mode == FileOperationService.OPERATION_MOVE |
| ? R.string.menu_move : R.string.menu_copy; |
| intent.putExtra(DocumentsContract.EXTRA_PROMPT, getResources().getString(drawerTitleId)); |
| |
| new GetDocumentsTask() { |
| @Override |
| void onDocumentsReady(List<DocumentInfo> docs) { |
| // TODO: Can this move to Fragment bundle state? |
| getDisplayState().selectedDocumentsForCopy = docs; |
| |
| // Determine if there is a directory in the set of documents |
| // to be copied? Why? Directory creation isn't supported by some roots |
| // (like Downloads). This informs DocumentsActivity (the "picker") |
| // to restrict available roots to just those with support. |
| intent.putExtra(Shared.EXTRA_DIRECTORY_COPY, hasDirectory(docs)); |
| intent.putExtra(FileOperationService.EXTRA_OPERATION, mode); |
| |
| // This just identifies the type of request...we'll check it |
| // when we reveive a response. |
| startActivityForResult(intent, REQUEST_COPY_DESTINATION); |
| } |
| |
| }.execute(selected); |
| } |
| |
| private static boolean hasDirectory(List<DocumentInfo> docs) { |
| for (DocumentInfo info : docs) { |
| if (Document.MIME_TYPE_DIR.equals(info.mimeType)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| private void renameDocuments(Selection selected) { |
| Metrics.logUserAction(getContext(), Metrics.USER_ACTION_RENAME); |
| |
| // Batch renaming not supported |
| // Rename option is only available in menu when 1 document selected |
| assert(selected.size() == 1); |
| |
| new GetDocumentsTask() { |
| @Override |
| void onDocumentsReady(List<DocumentInfo> docs) { |
| RenameDocumentFragment.show(getFragmentManager(), docs.get(0)); |
| } |
| }.execute(selected); |
| } |
| |
| @Override |
| public void initDocumentHolder(DocumentHolder holder) { |
| holder.addEventListener(mItemEventListener); |
| holder.itemView.setOnFocusChangeListener(mFocusManager); |
| } |
| |
| @Override |
| public void onBindDocumentHolder(DocumentHolder holder, Cursor cursor) { |
| setupDragAndDropOnDocumentView(holder.itemView, cursor); |
| } |
| |
| @Override |
| public State getDisplayState() { |
| return getBaseActivity().getDisplayState(); |
| } |
| |
| @Override |
| public Model getModel() { |
| return mModel; |
| } |
| |
| @Override |
| public boolean isDocumentEnabled(String docMimeType, int docFlags) { |
| return mTuner.isDocumentEnabled(docMimeType, docFlags); |
| } |
| |
| private void showEmptyDirectory() { |
| showEmptyView(R.string.empty, R.drawable.cabinet); |
| } |
| |
| private void showNoResults(RootInfo root) { |
| CharSequence msg = getContext().getResources().getText(R.string.no_results); |
| showEmptyView(String.format(String.valueOf(msg), root.title), R.drawable.cabinet); |
| } |
| |
| private void showQueryError() { |
| showEmptyView(R.string.query_error, R.drawable.hourglass); |
| } |
| |
| private void showEmptyView(@StringRes int id, int drawable) { |
| showEmptyView(getContext().getResources().getText(id), drawable); |
| } |
| |
| private void showEmptyView(CharSequence msg, int drawable) { |
| View content = mEmptyView.findViewById(R.id.content); |
| TextView msgView = (TextView) mEmptyView.findViewById(R.id.message); |
| ImageView imageView = (ImageView) mEmptyView.findViewById(R.id.artwork); |
| msgView.setText(msg); |
| imageView.setImageResource(drawable); |
| |
| mEmptyView.setVisibility(View.VISIBLE); |
| mEmptyView.requestFocus(); |
| mRecView.setVisibility(View.GONE); |
| } |
| |
| private void showDirectory() { |
| mEmptyView.setVisibility(View.GONE); |
| mRecView.setVisibility(View.VISIBLE); |
| mRecView.requestFocus(); |
| } |
| |
| private String findCommonMimeType(List<String> mimeTypes) { |
| String[] commonType = mimeTypes.get(0).split("/"); |
| if (commonType.length != 2) { |
| return "*/*"; |
| } |
| |
| for (int i = 1; i < mimeTypes.size(); i++) { |
| String[] type = mimeTypes.get(i).split("/"); |
| if (type.length != 2) continue; |
| |
| if (!commonType[1].equals(type[1])) { |
| commonType[1] = "*"; |
| } |
| |
| if (!commonType[0].equals(type[0])) { |
| commonType[0] = "*"; |
| commonType[1] = "*"; |
| break; |
| } |
| } |
| |
| return commonType[0] + "/" + commonType[1]; |
| } |
| |
| public void copySelectedToClipboard() { |
| Metrics.logUserAction(getContext(), Metrics.USER_ACTION_COPY_CLIPBOARD); |
| |
| Selection selection = mSelectionManager.getSelection(new Selection()); |
| if (selection.isEmpty()) { |
| return; |
| } |
| mSelectionManager.clearSelection(); |
| |
| // Clips the docs in the background, then displays a message |
| new ClipTask( |
| getActivity(), |
| () -> { |
| mClipper.clipDocumentsForCopy(mModel::getItemUri, selection); |
| }, |
| selection.size()).execute(); |
| } |
| |
| public void cutSelectedToClipboard() { |
| Metrics.logUserAction(getContext(), Metrics.USER_ACTION_CUT_CLIPBOARD); |
| |
| Selection selection = mSelectionManager.getSelection(new Selection()); |
| if (selection.isEmpty()) { |
| return; |
| } |
| mSelectionManager.clearSelection(); |
| |
| // Clips the docs in the background, then displays a message |
| new ClipTask( |
| getActivity(), |
| () -> { |
| mClipper.clipDocumentsForCut( |
| mModel::getItemUri, |
| selection, |
| getDisplayState().stack.peek()); |
| }, |
| selection.size()).execute(); |
| } |
| |
| public void pasteFromClipboard() { |
| Metrics.logUserAction(getContext(), Metrics.USER_ACTION_PASTE_CLIPBOARD); |
| |
| BaseActivity activity = (BaseActivity) getActivity(); |
| DocumentInfo destination = activity.getCurrentDirectory(); |
| mClipper.copyFromClipboard(destination, activity.getDisplayState().stack, mFileOpCallback); |
| getActivity().invalidateOptionsMenu(); |
| } |
| |
| public void selectAllFiles() { |
| Metrics.logUserAction(getContext(), Metrics.USER_ACTION_SELECT_ALL); |
| |
| // Exclude disabled files |
| List<String> enabled = new ArrayList<String>(); |
| for (String id : mAdapter.getModelIds()) { |
| Cursor cursor = getModel().getItem(id); |
| if (cursor == null) { |
| Log.w(TAG, "Skipping selection. Can't obtain cursor for modeId: " + id); |
| continue; |
| } |
| String docMimeType = getCursorString(cursor, Document.COLUMN_MIME_TYPE); |
| int docFlags = getCursorInt(cursor, Document.COLUMN_FLAGS); |
| if (isDocumentEnabled(docMimeType, docFlags)) { |
| enabled.add(id); |
| } |
| } |
| |
| // Only select things currently visible in the adapter. |
| boolean changed = mSelectionManager.setItemsSelected(enabled, true); |
| if (changed) { |
| updateDisplayState(); |
| } |
| } |
| |
| /** |
| * Attempts to restore focus on the directory listing. |
| */ |
| public void requestFocus() { |
| mFocusManager.restoreLastFocus(); |
| } |
| |
| private void setupDragAndDropOnDocumentView(View view, Cursor cursor) { |
| final String docMimeType = getCursorString(cursor, Document.COLUMN_MIME_TYPE); |
| if (Document.MIME_TYPE_DIR.equals(docMimeType)) { |
| // Make a directory item a drop target. Drop on non-directories and empty space |
| // is handled at the list/grid view level. |
| view.setOnDragListener(mOnDragListener); |
| } |
| |
| if (mTuner.dragAndDropEnabled()) { |
| // Make all items draggable. |
| view.setOnLongClickListener(onLongClickListener); |
| } |
| } |
| |
| public void clearSelection() { |
| mSelectionManager.clearSelection(); |
| } |
| |
| @Override |
| public void runOnUiThread(Runnable runnable) { |
| getActivity().runOnUiThread(runnable); |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * In DirectoryFragment, we spring loads the hovered folder. |
| */ |
| @Override |
| public void onViewHovered(View view) { |
| BaseActivity activity = (BaseActivity) getActivity(); |
| if (getModelId(view) != null) { |
| activity.springOpenDirectory(getDestination(view)); |
| } |
| |
| activity.setRootsDrawerOpen(false); |
| } |
| |
| public boolean handleDropEvent(View v, DragEvent event) { |
| BaseActivity activity = (BaseActivity) getActivity(); |
| activity.setRootsDrawerOpen(false); |
| |
| ClipData clipData = event.getClipData(); |
| assert (clipData != null); |
| |
| ClipDetails clipDetails = mClipper.getClipDetails(clipData); |
| assert(clipDetails.opType == FileOperationService.OPERATION_COPY); |
| |
| // Don't copy from the cwd into the cwd. Note: this currently doesn't work for |
| // multi-window drag, because localState isn't carried over from one process to |
| // another. |
| Object src = event.getLocalState(); |
| DocumentInfo dst = getDestination(v); |
| if (Objects.equals(src, dst)) { |
| if (DEBUG) Log.d(TAG, "Drop target same as source. Ignoring."); |
| return false; |
| } |
| |
| // Recognize multi-window drag and drop based on the fact that localState is not |
| // carried between processes. It will stop working when the localsState behavior |
| // is changed. The info about window should be passed in the localState then. |
| // The localState could also be null for copying from Recents in single window |
| // mode, but Recents doesn't offer this functionality (no directories). |
| Metrics.logUserAction(getContext(), |
| src == null ? Metrics.USER_ACTION_DRAG_N_DROP_MULTI_WINDOW |
| : Metrics.USER_ACTION_DRAG_N_DROP); |
| |
| mClipper.copyFromClipData(dst, getDisplayState().stack, clipData, mFileOpCallback); |
| return true; |
| } |
| |
| private DocumentInfo getDestination(View v) { |
| String id = getModelId(v); |
| if (id != null) { |
| Cursor dstCursor = mModel.getItem(id); |
| if (dstCursor == null) { |
| Log.w(TAG, "Invalid destination. Can't obtain cursor for modelId: " + id); |
| return null; |
| } |
| return DocumentInfo.fromDirectoryCursor(dstCursor); |
| } |
| |
| if (v == mRecView || v == mEmptyView) { |
| return getDisplayState().stack.peek(); |
| } |
| |
| return null; |
| } |
| |
| @Override |
| public void setDropTargetHighlight(View v, boolean highlight) { |
| // Note: use exact comparison - this code is searching for views which are children of |
| // the RecyclerView instance in the UI. |
| if (v.getParent() == mRecView) { |
| RecyclerView.ViewHolder vh = mRecView.getChildViewHolder(v); |
| if (vh instanceof DocumentHolder) { |
| ((DocumentHolder) vh).setHighlighted(highlight); |
| } |
| } |
| } |
| |
| /** |
| * Gets the model ID for a given motion event (using the event position) |
| */ |
| private String getModelId(MotionInputEvent e) { |
| RecyclerView.ViewHolder vh = getTarget(e); |
| if (vh instanceof DocumentHolder) { |
| return ((DocumentHolder) vh).modelId; |
| } else { |
| return null; |
| } |
| } |
| |
| private @Nullable DocumentHolder getTarget(MotionInputEvent e) { |
| View childView = mRecView.findChildViewUnder(e.getX(), e.getY()); |
| if (childView != null) { |
| return (DocumentHolder) mRecView.getChildViewHolder(childView); |
| } else { |
| return null; |
| } |
| } |
| |
| /** |
| * Gets the model ID for a given RecyclerView item. |
| * @param view A View that is a document item view, or a child of a document item view. |
| * @return The Model ID for the given document, or null if the given view is not associated with |
| * a document item view. |
| */ |
| protected @Nullable String getModelId(View view) { |
| View itemView = mRecView.findContainingItemView(view); |
| if (itemView != null) { |
| RecyclerView.ViewHolder vh = mRecView.getChildViewHolder(itemView); |
| if (vh instanceof DocumentHolder) { |
| return ((DocumentHolder) vh).modelId; |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Abstract task providing support for loading documents *off* |
| * the main thread. And if it isn't obvious, creating a list |
| * of documents (especially large lists) can be pretty expensive. |
| */ |
| private abstract class GetDocumentsTask |
| extends AsyncTask<Selection, Void, List<DocumentInfo>> { |
| @Override |
| protected final List<DocumentInfo> doInBackground(Selection... selected) { |
| return mModel.getDocuments(selected[0]); |
| } |
| |
| @Override |
| protected final void onPostExecute(List<DocumentInfo> docs) { |
| onDocumentsReady(docs); |
| } |
| |
| abstract void onDocumentsReady(List<DocumentInfo> docs); |
| } |
| |
| @Override |
| public boolean isSelected(String modelId) { |
| return mSelectionManager.getSelection().contains(modelId); |
| } |
| |
| private class ItemEventListener implements DocumentHolder.EventListener { |
| @Override |
| public boolean onActivate(DocumentHolder doc) { |
| // Toggle selection if we're in selection mode, othewise, view item. |
| if (mSelectionManager.hasSelection()) { |
| mSelectionManager.toggleSelection(doc.modelId); |
| } else { |
| handleViewItem(doc.modelId); |
| } |
| return true; |
| } |
| |
| @Override |
| public boolean onSelect(DocumentHolder doc) { |
| mSelectionManager.toggleSelection(doc.modelId); |
| mSelectionManager.setSelectionRangeBegin(doc.getAdapterPosition()); |
| return true; |
| } |
| |
| @Override |
| public boolean onKey(DocumentHolder doc, int keyCode, KeyEvent event) { |
| // Only handle key-down events. This is simpler, consistent with most other UIs, and |
| // enables the handling of repeated key events from holding down a key. |
| if (event.getAction() != KeyEvent.ACTION_DOWN) { |
| return false; |
| } |
| |
| // Ignore tab key events. Those should be handled by the top-level key handler. |
| if (keyCode == KeyEvent.KEYCODE_TAB) { |
| return false; |
| } |
| |
| if (mFocusManager.handleKey(doc, keyCode, event)) { |
| // Handle range selection adjustments. Extending the selection will adjust the |
| // bounds of the in-progress range selection. Each time an unshifted navigation |
| // event is received, the range selection is restarted. |
| if (shouldExtendSelection(doc, event)) { |
| if (!mSelectionManager.isRangeSelectionActive()) { |
| // Start a range selection if one isn't active |
| mSelectionManager.startRangeSelection(doc.getAdapterPosition()); |
| } |
| mSelectionManager.snapRangeSelection(mFocusManager.getFocusPosition()); |
| } else { |
| mSelectionManager.endRangeSelection(); |
| } |
| return true; |
| } |
| |
| // Handle enter key events |
| switch (keyCode) { |
| case KeyEvent.KEYCODE_ENTER: |
| if (event.isShiftPressed()) { |
| return onSelect(doc); |
| } |
| // For non-shifted enter keypresses, fall through. |
| case KeyEvent.KEYCODE_DPAD_CENTER: |
| case KeyEvent.KEYCODE_BUTTON_A: |
| return onActivate(doc); |
| case KeyEvent.KEYCODE_FORWARD_DEL: |
| // This has to be handled here instead of in a keyboard shortcut, because |
| // keyboard shortcuts all have to be modified with the 'Ctrl' key. |
| if (mSelectionManager.hasSelection()) { |
| Selection selection = mSelectionManager.getSelection(new Selection()); |
| deleteDocuments(selection); |
| } |
| // Always handle the key, even if there was nothing to delete. This is a |
| // precaution to prevent other handlers from potentially picking up the event |
| // and triggering extra behaviours. |
| return true; |
| } |
| |
| return false; |
| } |
| |
| private boolean shouldExtendSelection(DocumentHolder doc, KeyEvent event) { |
| if (!Events.isNavigationKeyCode(event.getKeyCode()) || !event.isShiftPressed()) { |
| return false; |
| } |
| |
| // TODO: Combine this method with onBeforeItemStateChange, as both of them are almost |
| // the same, and responsible for the same thing (whether to select or not). |
| final Cursor cursor = mModel.getItem(doc.modelId); |
| if (cursor == null) { |
| Log.w(TAG, "Couldn't obtain cursor for modelId: " + doc.modelId); |
| return false; |
| } |
| |
| final String docMimeType = getCursorString(cursor, Document.COLUMN_MIME_TYPE); |
| final int docFlags = getCursorInt(cursor, Document.COLUMN_FLAGS); |
| return mTuner.canSelectType(docMimeType, docFlags); |
| } |
| } |
| |
| private final class ModelUpdateListener implements Model.UpdateListener { |
| @Override |
| public void onModelUpdate(Model model) { |
| if (model.info != null || model.error != null) { |
| mMessageBar.setInfo(model.info); |
| mMessageBar.setError(model.error); |
| mMessageBar.show(); |
| } |
| |
| mProgressBar.setVisibility(model.isLoading() ? View.VISIBLE : View.GONE); |
| |
| if (model.isEmpty()) { |
| if (mSearchMode) { |
| showNoResults(getDisplayState().stack.root); |
| } else { |
| showEmptyDirectory(); |
| } |
| } else { |
| showDirectory(); |
| mAdapter.notifyDataSetChanged(); |
| } |
| |
| if (!model.isLoading()) { |
| getBaseActivity().notifyDirectoryLoaded( |
| model.doc != null ? model.doc.derivedUri : null); |
| } |
| } |
| |
| @Override |
| public void onModelUpdateFailed(Exception e) { |
| showQueryError(); |
| } |
| } |
| |
| private Drawable getDragIcon(Selection selection) { |
| if (selection.size() == 1) { |
| DocumentInfo doc = getSingleSelectedDocument(selection); |
| return mIconHelper.getDocumentIcon(getContext(), doc); |
| } |
| return getContext().getDrawable(R.drawable.ic_doc_generic); |
| } |
| |
| private String getDragTitle(Selection selection) { |
| assert (!selection.isEmpty()); |
| if (selection.size() == 1) { |
| DocumentInfo doc = getSingleSelectedDocument(selection); |
| return doc.displayName; |
| } |
| |
| return Shared.getQuantityString(getContext(), R.plurals.elements_dragged, selection.size()); |
| } |
| |
| private DocumentInfo getSingleSelectedDocument(Selection selection) { |
| assert (selection.size() == 1); |
| final List<DocumentInfo> docs = mModel.getDocuments(mSelectionManager.getSelection()); |
| assert (docs.size() == 1); |
| return docs.get(0); |
| } |
| |
| private DragStartHelper.OnDragStartListener mOnDragStartListener = |
| new DragStartHelper.OnDragStartListener() { |
| @Override |
| public boolean onDragStart(View v, DragStartHelper helper) { |
| Selection selection = mSelectionManager.getSelection(); |
| |
| if (v == null) { |
| Log.d(TAG, "Ignoring drag event, null view"); |
| return false; |
| } |
| if (!isSelected(getModelId(v))) { |
| Log.d(TAG, "Ignoring drag event, unselected view."); |
| return false; |
| } |
| |
| // NOTE: Preparation of the ClipData object can require a lot of time |
| // and ideally should be done in the background. Unfortunately |
| // the current code layout and framework assumptions don't support |
| // this. So for now, we could end up doing a bunch of i/o on main thread. |
| v.startDragAndDrop( |
| mClipper.getClipDataForDocuments( |
| mModel::getItemUri, |
| selection, |
| FileOperationService.OPERATION_COPY), |
| new DragShadowBuilder( |
| getActivity(), |
| getDragTitle(selection), |
| getDragIcon(selection)), |
| getDisplayState().stack.peek(), |
| View.DRAG_FLAG_GLOBAL |
| | View.DRAG_FLAG_GLOBAL_URI_READ |
| | View.DRAG_FLAG_GLOBAL_URI_WRITE); |
| |
| return true; |
| } |
| }; |
| |
| |
| private DragStartHelper mDragHelper = new DragStartHelper(null, mOnDragStartListener); |
| |
| private View.OnLongClickListener onLongClickListener = new View.OnLongClickListener() { |
| @Override |
| public boolean onLongClick(View v) { |
| return mDragHelper.onLongClick(v); |
| } |
| }; |
| |
| // Previously we listened to events with one class, only to bounce them forward |
| // to GestureDetector. We're still doing that here, but with a single class |
| // that reduces overall complexity in our glue code. |
| private static final class ListeningGestureDetector extends GestureDetector |
| implements OnItemTouchListener, OnTouchListener { |
| |
| private DragStartHelper mDragHelper; |
| private GestureListener mGestureListener; |
| |
| public ListeningGestureDetector( |
| Context context, DragStartHelper dragHelper, GestureListener listener) { |
| super(context, listener); |
| mDragHelper = dragHelper; |
| mGestureListener = listener; |
| setOnDoubleTapListener(listener); |
| } |
| |
| @Override |
| public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) { |
| if (e.getAction() == MotionEvent.ACTION_DOWN && Events.isMouseEvent(e)) { |
| mGestureListener.setLastButtonState(e.getButtonState()); |
| } |
| |
| // Detect drag events. When a drag is detected, intercept the rest of the gesture. |
| View itemView = rv.findChildViewUnder(e.getX(), e.getY()); |
| if (itemView != null && mDragHelper.onTouch(itemView, e)) { |
| return true; |
| } |
| // Forward unhandled events to the GestureDetector. |
| onTouchEvent(e); |
| |
| return false; |
| } |
| |
| @Override |
| public void onTouchEvent(RecyclerView rv, MotionEvent e) { |
| View itemView = rv.findChildViewUnder(e.getX(), e.getY()); |
| mDragHelper.onTouch(itemView, e); |
| // Note: even though this event is being handled as part of a drag gesture, continue |
| // forwarding to the GestureDetector. The detector needs to see the entire cluster of |
| // events in order to properly interpret gestures. |
| onTouchEvent(e); |
| } |
| |
| @Override |
| public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {} |
| |
| // For mEmptyView right-click context menu |
| @Override |
| public boolean onTouch(View v, MotionEvent event) { |
| if (event.getButtonState() == MotionEvent.BUTTON_SECONDARY) { |
| return mGestureListener.onRightClick(event); |
| } |
| return false; |
| } |
| } |
| |
| /** |
| * The gesture listener for items in the list/grid view. Interprets gestures and sends the |
| * events to the target DocumentHolder, whence they are routed to the appropriate listener. |
| */ |
| private class GestureListener extends GestureDetector.SimpleOnGestureListener { |
| // From the RecyclerView, we get two events sent to |
| // ListeningGestureDetector#onInterceptTouchEvent on a mouse click; we first get an |
| // ACTION_DOWN Event for clicking on the mouse, and then an ACTION_UP event from releasing |
| // the mouse click. ACTION_UP event doesn't have information regarding the button (primary |
| // vs. secondary), so we have to save that somewhere first from ACTION_DOWN, and then reuse |
| // it later. The ACTION_DOWN event doesn't get forwarded to GestureListener, so we have open |
| // up a public set method to set it. |
| private int mLastButtonState = -1; |
| |
| public void setLastButtonState(int state) { |
| mLastButtonState = state; |
| } |
| |
| @Override |
| public boolean onSingleTapUp(MotionEvent e) { |
| // Single tap logic: |
| // We first see if it's a mouse event, and if it was right click by checking on |
| // @{code ListeningGestureDetector#mLastButtonState} |
| // If the selection manager is active, it gets first whack at handling tap |
| // events. Otherwise, tap events are routed to the target DocumentHolder. |
| if (Events.isMouseEvent(e) && mLastButtonState == MotionEvent.BUTTON_SECONDARY) { |
| mLastButtonState = -1; |
| return onRightClick(e); |
| } |
| |
| final MotionInputEvent event = MotionInputEvent.obtain(e, mRecView); |
| try { |
| boolean handled = mSelectionManager.onSingleTapUp(event); |
| |
| if (handled) { |
| return handled; |
| } |
| |
| // Give the DocumentHolder a crack at the event. |
| DocumentHolder holder = DirectoryFragment.this.getTarget(event); |
| if (holder != null) { |
| handled = holder.onSingleTapUp(e); |
| } |
| |
| return handled; |
| } finally { |
| event.recycle(); |
| } |
| } |
| |
| @Override |
| public void onLongPress(MotionEvent e) { |
| // Long-press events get routed directly to the selection manager. They can be |
| // changed to route through the DocumentHolder if necessary. |
| final MotionInputEvent event = MotionInputEvent.obtain(e, mRecView); |
| try { |
| mSelectionManager.onLongPress(event); |
| } finally { |
| event.recycle(); |
| } |
| } |
| |
| @Override |
| public boolean onDoubleTap(MotionEvent e) { |
| // Double-tap events are handled directly by the DirectoryFragment. They can be changed |
| // to route through the DocumentHolder if necessary. |
| final MotionInputEvent event = MotionInputEvent.obtain(e, mRecView); |
| return DirectoryFragment.this.onDoubleTap(event); |
| } |
| |
| public boolean onRightClick(MotionEvent e) { |
| return DirectoryFragment.this.onRightClick(e); |
| } |
| } |
| |
| public static void showDirectory( |
| FragmentManager fm, RootInfo root, DocumentInfo doc, int anim) { |
| create(fm, TYPE_NORMAL, root, doc, null, anim); |
| } |
| |
| public static void showRecentsOpen(FragmentManager fm, int anim) { |
| create(fm, TYPE_RECENT_OPEN, null, null, null, anim); |
| } |
| |
| public static void reloadSearch(FragmentManager fm, RootInfo root, DocumentInfo doc, |
| String query) { |
| DirectoryFragment df = get(fm); |
| |
| df.mQuery = query; |
| df.mRoot = root; |
| df.mDocument = doc; |
| df.mSearchMode = query != null; |
| df.getLoaderManager().restartLoader(LOADER_ID, null, df); |
| } |
| |
| public static void reload(FragmentManager fm, int type, RootInfo root, DocumentInfo doc, |
| String query) { |
| DirectoryFragment df = get(fm); |
| df.mType = type; |
| df.mQuery = query; |
| df.mRoot = root; |
| df.mDocument = doc; |
| df.mSearchMode = query != null; |
| df.getLoaderManager().restartLoader(LOADER_ID, null, df); |
| } |
| |
| public static void create(FragmentManager fm, int type, RootInfo root, DocumentInfo doc, |
| String query, int anim) { |
| final Bundle args = new Bundle(); |
| args.putInt(Shared.EXTRA_TYPE, type); |
| args.putParcelable(Shared.EXTRA_ROOT, root); |
| args.putParcelable(Shared.EXTRA_DOC, doc); |
| args.putString(Shared.EXTRA_QUERY, query); |
| args.putParcelable(Shared.EXTRA_SELECTION, new Selection()); |
| |
| final FragmentTransaction ft = fm.beginTransaction(); |
| AnimationView.setupAnimations(ft, anim, args); |
| |
| final DirectoryFragment fragment = new DirectoryFragment(); |
| fragment.setArguments(args); |
| |
| ft.replace(getFragmentId(), fragment); |
| ft.commitAllowingStateLoss(); |
| } |
| |
| private static String buildStateKey(RootInfo root, DocumentInfo doc) { |
| final StringBuilder builder = new StringBuilder(); |
| builder.append(root != null ? root.authority : "null").append(';'); |
| builder.append(root != null ? root.rootId : "null").append(';'); |
| builder.append(doc != null ? doc.documentId : "null"); |
| return builder.toString(); |
| } |
| |
| public static @Nullable DirectoryFragment get(FragmentManager fm) { |
| // TODO: deal with multiple directories shown at once |
| Fragment fragment = fm.findFragmentById(getFragmentId()); |
| return fragment instanceof DirectoryFragment |
| ? (DirectoryFragment) fragment |
| : null; |
| } |
| |
| private static int getFragmentId() { |
| return R.id.container_directory; |
| } |
| |
| @Override |
| public Loader<DirectoryResult> onCreateLoader(int id, Bundle args) { |
| Context context = getActivity(); |
| State state = getDisplayState(); |
| |
| Uri contentsUri; |
| switch (mType) { |
| case TYPE_NORMAL: |
| contentsUri = mSearchMode ? DocumentsContract.buildSearchDocumentsUri( |
| mRoot.authority, mRoot.rootId, mQuery) |
| : DocumentsContract.buildChildDocumentsUri( |
| mDocument.authority, mDocument.documentId); |
| if (mTuner.managedModeEnabled()) { |
| contentsUri = DocumentsContract.setManageMode(contentsUri); |
| } |
| return new DirectoryLoader( |
| context, mType, mRoot, mDocument, contentsUri, state.userSortOrder, |
| mSearchMode); |
| case TYPE_RECENT_OPEN: |
| final RootsCache roots = DocumentsApplication.getRootsCache(context); |
| return new RecentsLoader(context, roots, state); |
| |
| default: |
| throw new IllegalStateException("Unknown type " + mType); |
| } |
| } |
| |
| @Override |
| public void onLoadFinished(Loader<DirectoryResult> loader, DirectoryResult result) { |
| if (!isAdded()) return; |
| |
| if (mSearchMode) { |
| Metrics.logUserAction(getContext(), Metrics.USER_ACTION_SEARCH); |
| } |
| |
| State state = getDisplayState(); |
| |
| mAdapter.notifyDataSetChanged(); |
| mModel.update(result); |
| |
| state.derivedSortOrder = result.sortOrder; |
| |
| updateLayout(state.derivedMode); |
| |
| if (mRestoredSelection != null) { |
| mSelectionManager.restoreSelection(mRestoredSelection); |
| // Note, we'll take care of cleaning up retained selection |
| // in the selection handler where we already have some |
| // specialized code to handle when selection was restored. |
| } |
| |
| // Restore any previous instance state |
| final SparseArray<Parcelable> container = state.dirState.remove(mStateKey); |
| if (container != null && !getArguments().getBoolean(Shared.EXTRA_IGNORE_STATE, false)) { |
| getView().restoreHierarchyState(container); |
| } else if (mLastSortOrder != state.derivedSortOrder) { |
| // The derived sort order takes the user sort order into account, but applies |
| // directory-specific defaults when the user doesn't explicitly set the sort |
| // order. Scroll to the top if the sort order actually changed. |
| mRecView.smoothScrollToPosition(0); |
| } |
| |
| mLastSortOrder = state.derivedSortOrder; |
| |
| mTuner.onModelLoaded(mModel, mType, mSearchMode); |
| |
| } |
| |
| @Override |
| public void onLoaderReset(Loader<DirectoryResult> loader) { |
| mModel.update(null); |
| } |
| } |