| /* |
| * Copyright (C) 2016 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; |
| |
| import android.view.Menu; |
| import android.view.MenuItem; |
| |
| import com.android.documentsui.base.RootInfo; |
| import com.android.documentsui.dirlist.DirectoryFragment; |
| |
| public abstract class MenuManager { |
| |
| final State mState; |
| final SearchViewManager mSearchManager; |
| |
| public MenuManager(SearchViewManager searchManager, State displayState) { |
| mSearchManager = searchManager; |
| mState = displayState; |
| } |
| |
| /** @see ActionModeController */ |
| public void updateActionMenu(Menu menu, SelectionDetails selection) { |
| updateOpenInActionMode(menu.findItem(R.id.menu_open), selection); |
| updateDelete(menu.findItem(R.id.menu_delete), selection); |
| updateShare(menu.findItem(R.id.menu_share), selection); |
| updateRename(menu.findItem(R.id.menu_rename), selection); |
| updateSelectAll(menu.findItem(R.id.menu_select_all)); |
| updateMoveTo(menu.findItem(R.id.menu_move_to), selection); |
| updateCopyTo(menu.findItem(R.id.menu_copy_to), selection); |
| |
| Menus.disableHiddenItems(menu); |
| } |
| |
| /** @see BaseActivity#onPrepareOptionsMenu */ |
| public void updateOptionMenu(Menu menu, DirectoryDetails directoryDetails) { |
| updateCreateDir(menu.findItem(R.id.menu_create_dir), directoryDetails); |
| updateSettings(menu.findItem(R.id.menu_settings), directoryDetails); |
| updateNewWindow(menu.findItem(R.id.menu_new_window), directoryDetails); |
| updateModePicker(menu.findItem( |
| R.id.menu_grid), menu.findItem(R.id.menu_list), directoryDetails); |
| // Sort menu item is managed by SortMenuManager |
| updateAdvanced(menu.findItem(R.id.menu_advanced), directoryDetails); |
| |
| Menus.disableHiddenItems(menu); |
| } |
| |
| /** |
| * @see DirectoryFragment#onCreateContextMenu |
| * |
| * Called when user tries to generate a context menu anchored to a file when the selection |
| * doesn't contain any folder. |
| * |
| * @param selectionDetails |
| * containsFiles may return false because this may be called when user right clicks on an |
| * unselectable item in pickers |
| */ |
| public void updateContextMenuForFiles(Menu menu, SelectionDetails selectionDetails) { |
| assert(selectionDetails != null); |
| |
| MenuItem share = menu.findItem(R.id.menu_share); |
| MenuItem open = menu.findItem(R.id.menu_open); |
| MenuItem openWith = menu.findItem(R.id.menu_open_with); |
| MenuItem rename = menu.findItem(R.id.menu_rename); |
| |
| updateShare(share, selectionDetails); |
| updateOpenInContextMenu(open, selectionDetails); |
| updateOpenWith(openWith, selectionDetails); |
| updateRename(rename, selectionDetails); |
| |
| updateContextMenu(menu, selectionDetails); |
| } |
| |
| /** |
| * @see DirectoryFragment#onCreateContextMenu |
| * |
| * Called when user tries to generate a context menu anchored to a folder when the selection |
| * doesn't contain any file. |
| * |
| * @param selectionDetails |
| * containDirectories may return false because this may be called when user right clicks on |
| * an unselectable item in pickers |
| */ |
| public void updateContextMenuForDirs(Menu menu, SelectionDetails selectionDetails) { |
| assert(selectionDetails != null); |
| |
| MenuItem openInNewWindow = menu.findItem(R.id.menu_open_in_new_window); |
| MenuItem rename = menu.findItem(R.id.menu_rename); |
| MenuItem pasteInto = menu.findItem(R.id.menu_paste_into_folder); |
| |
| updateOpenInNewWindow(openInNewWindow, selectionDetails); |
| updateRename(rename, selectionDetails); |
| updatePasteInto(pasteInto, selectionDetails); |
| |
| updateContextMenu(menu, selectionDetails); |
| } |
| |
| /** |
| * @see DirectoryFragment#onCreateContextMenu |
| * |
| * Update shared context menu items of both files and folders context menus. |
| */ |
| public void updateContextMenu(Menu menu, SelectionDetails selectionDetails) { |
| assert(selectionDetails != null); |
| |
| MenuItem cut = menu.findItem(R.id.menu_cut_to_clipboard); |
| MenuItem copy = menu.findItem(R.id.menu_copy_to_clipboard); |
| MenuItem delete = menu.findItem(R.id.menu_delete); |
| |
| final boolean canCopy = |
| selectionDetails.size() > 0 && !selectionDetails.containsPartialFiles(); |
| final boolean canDelete = selectionDetails.canDelete(); |
| cut.setEnabled(canCopy && canDelete); |
| copy.setEnabled(canCopy); |
| delete.setEnabled(canDelete); |
| } |
| |
| /** |
| * @see DirectoryFragment#onCreateContextMenu |
| * |
| * Called when user tries to generate a context menu anchored to an empty pane. |
| */ |
| public void updateContextMenuForContainer(Menu menu, DirectoryDetails directoryDetails) { |
| MenuItem paste = menu.findItem(R.id.menu_paste_from_clipboard); |
| MenuItem selectAll = menu.findItem(R.id.menu_select_all); |
| |
| paste.setEnabled(directoryDetails.hasItemsToPaste() && directoryDetails.canCreateDoc()); |
| updateSelectAll(selectAll); |
| } |
| |
| /** |
| * @see RootsFragment#onCreateContextMenu |
| */ |
| public void updateRootContextMenu(Menu menu, RootInfo root) { |
| MenuItem settings = menu.findItem(R.id.menu_settings); |
| MenuItem eject = menu.findItem(R.id.menu_eject_root); |
| |
| updateSettings(settings, root); |
| updateEject(eject, root); |
| } |
| |
| void updateModePicker(MenuItem grid, MenuItem list, DirectoryDetails directoryDetails) { |
| grid.setVisible(mState.derivedMode != State.MODE_GRID); |
| list.setVisible(mState.derivedMode != State.MODE_LIST); |
| } |
| |
| void updateAdvanced(MenuItem advanced, DirectoryDetails directoryDetails) { |
| advanced.setVisible(mState.showAdvancedOption); |
| advanced.setTitle(mState.showAdvancedOption && mState.showAdvanced |
| ? R.string.menu_advanced_hide : R.string.menu_advanced_show); |
| } |
| |
| void updateSettings(MenuItem settings, DirectoryDetails directoryDetails) { |
| settings.setVisible(false); |
| } |
| |
| void updateSettings(MenuItem settings, RootInfo root) { |
| settings.setVisible(false); |
| } |
| |
| void updateEject(MenuItem eject, RootInfo root) { |
| eject.setVisible(false); |
| } |
| |
| void updateNewWindow(MenuItem newWindow, DirectoryDetails directoryDetails) { |
| newWindow.setVisible(false); |
| } |
| |
| void updateOpenInActionMode(MenuItem open, SelectionDetails selectionDetails) { |
| open.setVisible(false); |
| } |
| |
| void updateOpenWith(MenuItem openWith, SelectionDetails selectionDetails) { |
| openWith.setVisible(false); |
| } |
| |
| void updateOpenInNewWindow(MenuItem openInNewWindow, SelectionDetails selectionDetails) { |
| openInNewWindow.setVisible(false); |
| } |
| |
| void updateShare(MenuItem share, SelectionDetails selectionDetails) { |
| share.setVisible(false); |
| } |
| |
| void updateDelete(MenuItem delete, SelectionDetails selectionDetails) { |
| delete.setVisible(false); |
| } |
| |
| void updateRename(MenuItem rename, SelectionDetails selectionDetails) { |
| rename.setVisible(false); |
| } |
| |
| void updateMoveTo(MenuItem moveTo, SelectionDetails selectionDetails) { |
| moveTo.setVisible(false); |
| } |
| |
| void updateCopyTo(MenuItem copyTo, SelectionDetails selectionDetails) { |
| copyTo.setVisible(false); |
| } |
| |
| void updatePasteInto(MenuItem pasteInto, SelectionDetails selectionDetails) { |
| pasteInto.setVisible(false); |
| } |
| |
| abstract void updateOpenInContextMenu(MenuItem open, SelectionDetails selectionDetails); |
| abstract void updateSelectAll(MenuItem selectAll); |
| abstract void updateCreateDir(MenuItem createDir, DirectoryDetails directoryDetails); |
| |
| /** |
| * Access to meta data about the selection. |
| */ |
| public interface SelectionDetails { |
| boolean containsDirectories(); |
| |
| boolean containsFiles(); |
| |
| int size(); |
| |
| boolean containsPartialFiles(); |
| |
| // TODO: Update these to express characteristics instead of answering concrete questions, |
| // since the answer to those questions is (or can be) activity specific. |
| boolean canDelete(); |
| |
| boolean canRename(); |
| |
| boolean canPasteInto(); |
| } |
| |
| public static class DirectoryDetails { |
| private final BaseActivity mActivity; |
| |
| public DirectoryDetails(BaseActivity activity) { |
| mActivity = activity; |
| } |
| |
| public boolean shouldShowFancyFeatures() { |
| return Shared.shouldShowFancyFeatures(mActivity); |
| } |
| |
| public boolean hasRootSettings() { |
| return mActivity.getCurrentRoot().hasSettings(); |
| } |
| |
| public boolean hasItemsToPaste() { |
| return false; |
| } |
| |
| public boolean canCreateDoc() { |
| return isInRecents() ? false : mActivity.getCurrentDirectory().isCreateSupported(); |
| } |
| |
| public boolean isInRecents() { |
| return mActivity.getCurrentDirectory() == null; |
| } |
| |
| public boolean canCreateDirectory() { |
| return mActivity.canCreateDirectory(); |
| } |
| } |
| } |