| /* |
| * 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.Shared.MAX_DOCS_IN_INTENT; |
| 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.Canvas; |
| import android.graphics.Point; |
| import android.graphics.Rect; |
| import android.graphics.drawable.Drawable; |
| import android.net.Uri; |
| import android.os.AsyncTask; |
| import android.os.Bundle; |
| import android.os.Parcel; |
| import android.os.Parcelable; |
| import android.provider.DocumentsContract; |
| import android.provider.DocumentsContract.Document; |
| import android.support.annotation.Nullable; |
| import android.support.design.widget.Snackbar; |
| import android.support.v13.view.DragStartHelper; |
| import android.support.v4.view.accessibility.AccessibilityNodeInfoCompat; |
| import android.support.v4.view.accessibility.AccessibilityNodeInfoCompat.AccessibilityActionCompat; |
| 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.Recycler; |
| 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.DragEvent; |
| import android.view.GestureDetector; |
| import android.view.HapticFeedbackConstants; |
| import android.view.KeyEvent; |
| import android.view.LayoutInflater; |
| import android.view.Menu; |
| import android.view.MenuItem; |
| import android.view.MotionEvent; |
| import android.view.View; |
| 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.DocumentsActivity; |
| import com.android.documentsui.DocumentsApplication; |
| import com.android.documentsui.Events; |
| import com.android.documentsui.Events.MotionInputEvent; |
| 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.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 com.google.common.collect.Lists; |
| |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Objects; |
| import java.util.Set; |
| |
| /** |
| * Display the documents inside a single directory. |
| */ |
| public class DirectoryFragment extends Fragment |
| implements DocumentsAdapter.Environment, LoaderCallbacks<DirectoryResult> { |
| |
| @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 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; |
| // Save selection found during creation so it can be restored during directory loading. |
| private Selection mSelection = null; |
| private boolean mSearchMode = false; |
| private @Nullable ActionMode mActionMode; |
| |
| @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())); |
| |
| // 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); |
| final Selection selection = args.getParcelable(Shared.EXTRA_SELECTION); |
| mSelection = selection != null ? selection : new Selection(); |
| mSearchMode = args.getBoolean(Shared.EXTRA_SEARCH_MODE); |
| |
| mIconHelper = new IconHelper(context, MODE_GRID); |
| |
| mAdapter = new SectionBreakDocumentsAdapterWrapper( |
| this, new ModelBackedDocumentsAdapter(this, mIconHelper)); |
| |
| mRecView.setAdapter(mAdapter); |
| |
| // Switch Access Accessibility API needs an {@link AccessibilityDelegate} to know the proper |
| // route when user selects an UI element. It usually guesses this if the element has an |
| // {@link OnClickListener}, but since we do not have one for itemView, we will need to |
| // manually route it to the right behavior. RecyclerView has its own AccessibilityDelegate, |
| // and routes it to its LayoutManager; so we must override the LayoutManager's accessibility |
| // methods to route clicks correctly. |
| mLayout = new GridLayoutManager(getContext(), mColumnCount) { |
| @Override |
| public void onInitializeAccessibilityNodeInfoForItem( |
| RecyclerView.Recycler recycler, RecyclerView.State state, |
| View host, AccessibilityNodeInfoCompat info) { |
| super.onInitializeAccessibilityNodeInfoForItem(recycler, state, host, info); |
| info.addAction(AccessibilityActionCompat.ACTION_CLICK); |
| } |
| |
| @Override |
| public boolean performAccessibilityActionForItem( |
| RecyclerView.Recycler recycler, RecyclerView.State state, View view, |
| int action, Bundle args) { |
| // We are only handling click events; route all other to default implementation |
| if (action == AccessibilityNodeInfoCompat.ACTION_CLICK) { |
| RecyclerView.ViewHolder vh = mRecView.getChildViewHolder(view); |
| if (vh instanceof DocumentHolder) { |
| DocumentHolder dh = (DocumentHolder) vh; |
| if (dh.mEventListener != null) { |
| dh.mEventListener.onActivate(dh); |
| return true; |
| } |
| } |
| } |
| return super.performAccessibilityActionForItem(recycler, state, view, action, |
| args); |
| } |
| }; |
| SpanSizeLookup lookup = mAdapter.createSpanSizeLookup(); |
| if (lookup != null) { |
| mLayout.setSpanSizeLookup(lookup); |
| } |
| mRecView.setLayoutManager(mLayout); |
| |
| mGestureDetector = |
| new ListeningGestureDetector(this.getContext(), mDragHelper, new GestureListener()); |
| |
| mRecView.addOnItemTouchListener(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); |
| |
| mSelectionManager.addCallback(new SelectionModeListener()); |
| |
| 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); |
| |
| mTuner = FragmentTuner.pick(getContext(), state); |
| mClipper = new DocumentClipper(context); |
| |
| 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); |
| } |
| |
| @Override |
| public void onSaveInstanceState(Bundle outState) { |
| super.onSaveInstanceState(outState); |
| |
| mSelectionManager.getSelection(mSelection); |
| |
| outState.putInt(Shared.EXTRA_TYPE, mType); |
| outState.putParcelable(Shared.EXTRA_ROOT, mRoot); |
| outState.putParcelable(Shared.EXTRA_DOC, mDocument); |
| outState.putString(Shared.EXTRA_QUERY, mQuery); |
| |
| // Workaround. To avoid crash, write only up to 512 KB of selection. |
| // If more files are selected, then the selection will be lost. |
| final Parcel parcel = Parcel.obtain(); |
| try { |
| mSelection.writeToParcel(parcel, 0); |
| if (parcel.dataSize() <= 512 * 1024) { |
| outState.putParcelable(Shared.EXTRA_SELECTION, mSelection); |
| } |
| } finally { |
| parcel.recycle(); |
| } |
| |
| 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); |
| } |
| } |
| |
| 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( |
| getActivity(), |
| getDisplayState().selectedDocumentsForCopy, |
| getDisplayState().stack.peek(), |
| (DocumentStack) data.getParcelableExtra(Shared.EXTRA_STACK), |
| operationType); |
| } |
| |
| protected boolean onDoubleTap(MotionEvent e) { |
| if (Events.isMouseEvent(e)) { |
| String id = getModelId(e); |
| if (id != null) { |
| return handleViewItem(id); |
| } |
| } |
| return false; |
| } |
| |
| 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); |
| ((BaseActivity) getActivity()).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(); |
| mSelectionManager.handleLayoutChanged(); // RecyclerView doesn't do this for us |
| 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; |
| } |
| |
| /** |
| * 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, FragmentTuner.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; |
| } |
| |
| if (mSelected.size() >= MAX_DOCS_IN_INTENT) { |
| Snackbars.makeSnackbar( |
| getActivity(), |
| R.string.too_many_selected, |
| Snackbar.LENGTH_SHORT) |
| .show(); |
| return false; |
| } |
| } |
| 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) { |
| 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); |
| mTuner.updateActionMenu(mMenu, this); |
| Menus.disableHiddenItems(mMenu); |
| } |
| |
| @Override |
| public boolean onActionItemClicked(ActionMode mode, MenuItem item) { |
| Selection selection = mSelectionManager.getSelection(new Selection()); |
| |
| switch (item.getItemId()) { |
| case R.id.menu_open: |
| openDocuments(selection); |
| mode.finish(); |
| return true; |
| |
| case R.id.menu_share: |
| shareDocuments(selection); |
| // TODO: Only finish selection if share action is completed. |
| mode.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: |
| // TODO: Only finish selection mode if copy-to is not canceled. |
| // Need to plum down into handling the way we do with deleteDocuments. |
| mode.finish(); |
| transferDocuments(selection, FileOperationService.OPERATION_COPY); |
| return true; |
| |
| case R.id.menu_move_to: |
| // Exit selection mode first, so we avoid deselecting deleted documents. |
| mode.finish(); |
| transferDocuments(selection, FileOperationService.OPERATION_MOVE); |
| return true; |
| |
| case R.id.menu_copy_to_clipboard: |
| copySelectedToClipboard(); |
| 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. |
| mode.finish(); |
| renameDocuments(selection); |
| return true; |
| |
| default: |
| if (DEBUG) Log.d(TAG, "Unhandled menu item selected: " + item); |
| return false; |
| } |
| } |
| } |
| |
| 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); |
| |
| // Model must be accessed in UI thread, since underlying cursor is not threadsafe. |
| List<DocumentInfo> docs = mModel.getDocuments(selected); |
| // TODO: Implement support in Files activity for opening multiple docs. |
| BaseActivity.get(DirectoryFragment.this).onDocumentsPicked(docs); |
| } |
| |
| private void shareDocuments(final Selection selected) { |
| Metrics.logUserAction(getContext(), Metrics.USER_ACTION_SHARE); |
| |
| // Model must be accessed in UI thread, since underlying cursor is not threadsafe. |
| List<DocumentInfo> docs = mModel.getDocuments(selected); |
| 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); |
| } |
| |
| 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(); |
| |
| // Model must be accessed in UI thread, since underlying cursor is not threadsafe. |
| List<DocumentInfo> docs = mModel.getDocuments(selected); |
| |
| TextView message = |
| (TextView) mInflater.inflate(R.layout.dialog_delete_confirmation, null); |
| message.setText(generateDeleteMessage(docs)); |
| |
| // This "insta-hides" files that are being deleted, because |
| // the delete operation may be not execute immediately (it |
| // may be queued up on the FileOperationService.) |
| // To hide the files locally, we call the hide method on the adapter |
| // ...which a live object...cannot be parceled. |
| // For that reason, 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.yes, |
| 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."); |
| } |
| // Hide the files in the UI...since the operation |
| // might be queued up on FileOperationService. |
| // We're walking a line here. |
| mAdapter.hide(selected.getAll()); |
| FileOperations.delete( |
| getActivity(), docs, srcParent, getDisplayState().stack); |
| } |
| }) |
| .setNegativeButton(android.R.string.no, null) |
| .show(); |
| } |
| |
| 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)); |
| |
| // Model must be accessed in UI thread, since underlying cursor is not threadsafe. |
| List<DocumentInfo> docs = mModel.getDocuments(selected); |
| // 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); |
| } |
| |
| 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); |
| |
| // Model must be accessed in UI thread, since underlying cursor is not threadsafe. |
| List<DocumentInfo> docs = mModel.getDocuments(selected); |
| RenameDocumentFragment.show(getFragmentManager(), docs.get(0)); |
| } |
| |
| @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 ((BaseActivity) getActivity()).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]; |
| } |
| |
| private void copyFromClipboard() { |
| new AsyncTask<Void, Void, List<DocumentInfo>>() { |
| |
| @Override |
| protected List<DocumentInfo> doInBackground(Void... params) { |
| return mClipper.getClippedDocuments(); |
| } |
| |
| @Override |
| protected void onPostExecute(List<DocumentInfo> docs) { |
| DocumentInfo destination = |
| ((BaseActivity) getActivity()).getCurrentDirectory(); |
| copyDocuments(docs, destination); |
| } |
| }.execute(); |
| } |
| |
| private void copyFromClipData(final ClipData clipData, final DocumentInfo destination) { |
| assert(clipData != null); |
| |
| new AsyncTask<Void, Void, List<DocumentInfo>>() { |
| |
| @Override |
| protected List<DocumentInfo> doInBackground(Void... params) { |
| return mClipper.getDocumentsFromClipData(clipData); |
| } |
| |
| @Override |
| protected void onPostExecute(List<DocumentInfo> docs) { |
| copyDocuments(docs, destination); |
| } |
| }.execute(); |
| } |
| |
| private void copyDocuments(final List<DocumentInfo> docs, final DocumentInfo destination) { |
| BaseActivity activity = (BaseActivity) getActivity(); |
| if (!canCopy(docs, activity.getCurrentRoot(), destination)) { |
| Snackbars.makeSnackbar( |
| getActivity(), |
| R.string.clipboard_files_cannot_paste, |
| Snackbar.LENGTH_SHORT) |
| .show(); |
| return; |
| } |
| |
| if (docs.isEmpty()) { |
| return; |
| } |
| |
| final DocumentStack curStack = getDisplayState().stack; |
| DocumentStack tmpStack = new DocumentStack(); |
| if (destination != null) { |
| tmpStack.push(destination); |
| tmpStack.addAll(curStack); |
| } else { |
| tmpStack = curStack; |
| } |
| |
| FileOperations.copy(getActivity(), docs, tmpStack); |
| } |
| |
| public void copySelectedToClipboard() { |
| Metrics.logUserAction(getContext(), Metrics.USER_ACTION_COPY_CLIPBOARD); |
| |
| Selection selection = mSelectionManager.getSelection(new Selection()); |
| if (!selection.isEmpty()) { |
| copySelectionToClipboard(selection); |
| mSelectionManager.clearSelection(); |
| } |
| } |
| |
| void copySelectionToClipboard(Selection selected) { |
| assert(!selected.isEmpty()); |
| |
| // Model must be accessed in UI thread, since underlying cursor is not threadsafe. |
| List<DocumentInfo> docs = mModel.getDocuments(selected); |
| mClipper.clipDocuments(docs); |
| Activity activity = getActivity(); |
| Snackbars.makeSnackbar(activity, |
| activity.getResources().getQuantityString( |
| R.plurals.clipboard_files_clipped, docs.size(), docs.size()), |
| Snackbar.LENGTH_SHORT).show(); |
| } |
| |
| public void pasteFromClipboard() { |
| Metrics.logUserAction(getContext(), Metrics.USER_ACTION_PASTE_CLIPBOARD); |
| |
| copyFromClipboard(); |
| getActivity().invalidateOptionsMenu(); |
| } |
| |
| /** |
| * Returns true if the list of files can be copied to destination. Note that this |
| * is a policy check only. Currently the method does not attempt to verify |
| * available space or any other environmental aspects possibly resulting in |
| * failure to copy. |
| * |
| * @return true if the list of files can be copied to destination. |
| */ |
| private boolean canCopy(List<DocumentInfo> files, RootInfo root, DocumentInfo dest) { |
| if (dest == null || !dest.isDirectory() || !dest.isCreateSupported()) { |
| return false; |
| } |
| |
| // Can't copy folders to downloads, because we don't show folders there. |
| if (root.isDownloads()) { |
| for (DocumentInfo docs : files) { |
| if (docs.isDirectory()) { |
| return false; |
| } |
| } |
| } |
| |
| return true; |
| } |
| |
| public void selectAllFiles() { |
| Metrics.logUserAction(getContext(), Metrics.USER_ACTION_SELECT_ALL); |
| |
| // Exclude disabled files. |
| Set<String> enabled = new HashSet<String>(); |
| List<String> modelIds = mAdapter.getModelIds(); |
| |
| // Get the current selection. |
| String[] alreadySelected = mSelectionManager.getSelection().getAll(); |
| for (String id : alreadySelected) { |
| enabled.add(id); |
| } |
| |
| for (String id : modelIds) { |
| 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 (mTuner.canSelectType(docMimeType, docFlags)) { |
| if (enabled.size() >= MAX_DOCS_IN_INTENT) { |
| Snackbars.makeSnackbar( |
| getActivity(), |
| R.string.too_many_in_select_all, |
| Snackbar.LENGTH_SHORT) |
| .show(); |
| break; |
| } |
| 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); |
| } |
| } |
| |
| private View.OnDragListener mOnDragListener = new View.OnDragListener() { |
| @Override |
| public boolean onDrag(View v, DragEvent event) { |
| switch (event.getAction()) { |
| case DragEvent.ACTION_DRAG_STARTED: |
| // TODO: Check if the event contains droppable data. |
| return true; |
| |
| // TODO: Expand drop target directory on hover? |
| case DragEvent.ACTION_DRAG_ENTERED: |
| setDropTargetHighlight(v, true); |
| return true; |
| case DragEvent.ACTION_DRAG_EXITED: |
| setDropTargetHighlight(v, false); |
| return true; |
| |
| case DragEvent.ACTION_DRAG_LOCATION: |
| return true; |
| |
| case DragEvent.ACTION_DRAG_ENDED: |
| if (event.getResult()) { |
| // Exit selection mode if the drop was handled. |
| mSelectionManager.clearSelection(); |
| } |
| return true; |
| |
| case DragEvent.ACTION_DROP: |
| // After a drop event, always stop highlighting the target. |
| setDropTargetHighlight(v, false); |
| |
| ClipData clipData = event.getClipData(); |
| if (clipData == null) { |
| Log.w(TAG, "Received invalid drop event with null clipdata. Ignoring."); |
| return false; |
| } |
| |
| // 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); |
| |
| copyFromClipData(clipData, dst); |
| return true; |
| } |
| return false; |
| } |
| |
| 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; |
| } |
| |
| private 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(MotionEvent e) { |
| View view = mRecView.findChildViewUnder(e.getX(), e.getY()); |
| if (view == null) { |
| return null; |
| } |
| RecyclerView.ViewHolder vh = mRecView.getChildViewHolder(view); |
| if (vh instanceof DocumentHolder) { |
| return ((DocumentHolder) vh).modelId; |
| } 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. |
| */ |
| private 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; |
| } |
| |
| private List<DocumentInfo> getDraggableDocuments(View currentItemView) { |
| String modelId = getModelId(currentItemView); |
| if (modelId == null) { |
| return Collections.EMPTY_LIST; |
| } |
| |
| final List<DocumentInfo> selectedDocs = |
| mModel.getDocuments(mSelectionManager.getSelection()); |
| if (!selectedDocs.isEmpty()) { |
| if (!isSelected(modelId)) { |
| // There is a selection that does not include the current item, drag nothing. |
| return Collections.EMPTY_LIST; |
| } |
| return selectedDocs; |
| } |
| |
| final Cursor cursor = mModel.getItem(modelId); |
| if (cursor == null) { |
| Log.w(TAG, "Undraggable document. Can't obtain cursor for modelId " + modelId); |
| return Collections.EMPTY_LIST; |
| } |
| |
| return Lists.newArrayList( |
| DocumentInfo.fromDirectoryCursor(cursor)); |
| } |
| |
| private static class DragShadowBuilder extends View.DragShadowBuilder { |
| |
| private final Context mContext; |
| private final IconHelper mIconHelper; |
| private final LayoutInflater mInflater; |
| private final View mShadowView; |
| private final TextView mTitle; |
| private final ImageView mIcon; |
| private final int mWidth; |
| private final int mHeight; |
| |
| public DragShadowBuilder(Context context, IconHelper iconHelper, List<DocumentInfo> docs) { |
| mContext = context; |
| mIconHelper = iconHelper; |
| mInflater = LayoutInflater.from(context); |
| |
| mWidth = mContext.getResources().getDimensionPixelSize(R.dimen.drag_shadow_width); |
| mHeight= mContext.getResources().getDimensionPixelSize(R.dimen.drag_shadow_height); |
| |
| mShadowView = mInflater.inflate(R.layout.drag_shadow_layout, null); |
| mTitle = (TextView) mShadowView.findViewById(android.R.id.title); |
| mIcon = (ImageView) mShadowView.findViewById(android.R.id.icon); |
| |
| mTitle.setText(getTitle(docs)); |
| mIcon.setImageDrawable(getIcon(docs)); |
| } |
| |
| private Drawable getIcon(List<DocumentInfo> docs) { |
| if (docs.size() == 1) { |
| final DocumentInfo doc = docs.get(0); |
| return mIconHelper.getDocumentIcon(mContext, doc.authority, doc.documentId, |
| doc.mimeType, doc.icon); |
| } |
| return mContext.getDrawable(com.android.internal.R.drawable.ic_doc_generic); |
| } |
| |
| private String getTitle(List<DocumentInfo> docs) { |
| if (docs.size() == 1) { |
| final DocumentInfo doc = docs.get(0); |
| return doc.displayName; |
| } |
| return Shared.getQuantityString(mContext, R.plurals.elements_dragged, docs.size()); |
| } |
| |
| @Override |
| public void onProvideShadowMetrics( |
| Point shadowSize, Point shadowTouchPoint) { |
| shadowSize.set(mWidth, mHeight); |
| shadowTouchPoint.set(mWidth, mHeight); |
| } |
| |
| @Override |
| public void onDrawShadow(Canvas canvas) { |
| Rect r = canvas.getClipBounds(); |
| // Calling measure is necessary in order for all child views to get correctly laid out. |
| mShadowView.measure( |
| View.MeasureSpec.makeMeasureSpec(r.right- r.left, View.MeasureSpec.EXACTLY), |
| View.MeasureSpec.makeMeasureSpec(r.top- r.bottom, View.MeasureSpec.EXACTLY)); |
| mShadowView.layout(r.left, r.top, r.right, r.bottom); |
| mShadowView.draw(canvas); |
| } |
| } |
| |
| @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()) { |
| ((BaseActivity) getActivity()).notifyDirectoryLoaded( |
| model.doc != null ? model.doc.derivedUri : null); |
| } |
| } |
| |
| @Override |
| public void onModelUpdateFailed(Exception e) { |
| showQueryError(); |
| } |
| } |
| |
| private DragStartHelper.OnDragStartListener mOnDragStartListener = |
| new DragStartHelper.OnDragStartListener() { |
| @Override |
| public boolean onDragStart(View v, DragStartHelper helper) { |
| if (isSelected(getModelId(v))) { |
| List<DocumentInfo> docs = getDraggableDocuments(v); |
| if (docs.isEmpty()) { |
| return false; |
| } |
| v.startDragAndDrop( |
| mClipper.getClipDataForDocuments(docs), |
| new DragShadowBuilder(getActivity(), mIconHelper, docs), |
| getDisplayState().stack.peek(), |
| View.DRAG_FLAG_GLOBAL | View.DRAG_FLAG_GLOBAL_URI_READ | |
| View.DRAG_FLAG_GLOBAL_URI_WRITE |
| ); |
| return true; |
| } |
| |
| return false; |
| } |
| }; |
| |
| 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 { |
| |
| private int mLastTool = -1; |
| private DragStartHelper mDragHelper; |
| |
| public ListeningGestureDetector( |
| Context context, DragStartHelper dragHelper, GestureListener listener) { |
| super(context, listener); |
| mDragHelper = dragHelper; |
| setOnDoubleTapListener(listener); |
| } |
| |
| boolean mouseSpawnedLastEvent() { |
| return Events.isMouseType(mLastTool); |
| } |
| |
| boolean touchSpawnedLastEvent() { |
| return Events.isTouchType(mLastTool); |
| } |
| |
| @Override |
| public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) { |
| mLastTool = e.getToolType(0); |
| |
| // 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) {} |
| } |
| |
| /** |
| * 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 { |
| @Override |
| public boolean onSingleTapUp(MotionEvent e) { |
| // Single tap logic: |
| // If the selection manager is active, it gets first whack at handling tap |
| // events. Otherwise, tap events are routed to the target DocumentHolder. |
| boolean handled = mSelectionManager.onSingleTapUp( |
| new MotionInputEvent(e, mRecView)); |
| |
| if (handled) { |
| return handled; |
| } |
| |
| // Give the DocumentHolder a crack at the event. |
| DocumentHolder holder = getTarget(e); |
| if (holder != null) { |
| handled = holder.onSingleTapUp(e); |
| } |
| |
| return handled; |
| } |
| |
| @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. |
| mSelectionManager.onLongPress(new MotionInputEvent(e, mRecView)); |
| } |
| |
| @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. |
| return DirectoryFragment.this.onDoubleTap(e); |
| } |
| |
| private @Nullable DocumentHolder getTarget(MotionEvent e) { |
| View childView = mRecView.findChildViewUnder(e.getX(), e.getY()); |
| if (childView != null) { |
| return (DocumentHolder) mRecView.getChildViewHolder(childView); |
| } else { |
| return null; |
| } |
| } |
| } |
| |
| 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 (mSelection != null) { |
| mSelectionManager.setItemsSelected(mSelection.toList(), true); |
| mSelection.clear(); |
| } |
| |
| // 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); |
| } |
| } |
