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Commit 7c35b036 authored by Ben Lin's avatar Ben Lin
Browse files

Isolate Menu/Action management into dedicated manager classes. 

We are now also returning fragmentTuner at the activity level, so that
directoryFragment does not have to do a .pick() logic depending on the
activity type. Rather, the logic lies within the activity itself.

Bug: 24416336
Change-Id: Idb200864f6c9468b9193781f6ac505b557ffbce9
parent 9e177b7d

src/com/android/documentsui/BaseActivity.java

+3 −0
Original line number Diff line number Diff line
@@ -54,6 +54,7 @@ import com.android.documentsui.SearchViewManager.SearchManagerListener; 
import com.android.documentsui.State.ViewMode;

import com.android.documentsui.dirlist.AnimationView;

import com.android.documentsui.dirlist.DirectoryFragment;

import com.android.documentsui.dirlist.FragmentTuner;

import com.android.documentsui.dirlist.Model;

import com.android.documentsui.model.DocumentInfo;

import com.android.documentsui.model.DocumentStack;
@@ -95,6 +96,8 @@ public abstract class BaseActivity extends Activity 


    public abstract void onDocumentPicked(DocumentInfo doc, Model model);

    public abstract void onDocumentsPicked(List<DocumentInfo> docs);

    public abstract FragmentTuner createFragmentTuner();

    public abstract MenuManager getMenuManager();



    abstract void onTaskFinished(Uri... uris);

    abstract void refreshDirectory(int anim);

src/com/android/documentsui/DocumentsActivity.java

+20 −30
Original line number Diff line number Diff line
@@ -43,10 +43,13 @@ import android.util.Log; 
import android.view.Menu;

import android.view.MenuItem;



import com.android.documentsui.MenuManager.DirectoryDetails;

import com.android.documentsui.RecentsProvider.RecentColumns;

import com.android.documentsui.RecentsProvider.ResumeColumns;

import com.android.documentsui.dirlist.AnimationView;

import com.android.documentsui.dirlist.DirectoryFragment;

import com.android.documentsui.dirlist.FragmentTuner;

import com.android.documentsui.dirlist.FragmentTuner.DocumentsTuner;

import com.android.documentsui.dirlist.Model;

import com.android.documentsui.model.DocumentInfo;

import com.android.documentsui.model.DurableUtils;
@@ -64,6 +67,8 @@ import java.util.List; 
public class DocumentsActivity extends BaseActivity {

    private static final int CODE_FORWARD = 42;

    private static final String TAG = "DocumentsActivity";

    private DocumentsMenuManager mMenuManager;

    private DirectoryDetails mDetails;



    public DocumentsActivity() {

        super(R.layout.documents_activity, TAG);
@@ -72,6 +77,8 @@ public class DocumentsActivity extends BaseActivity { 
    @Override

    public void onCreate(Bundle icicle) {

        super.onCreate(icicle);

        mMenuManager = new DocumentsMenuManager(mSearchManager, getDisplayState());

        mDetails = new DirectoryDetails(this);



        if (mState.action == ACTION_CREATE) {

            final String mimeType = getIntent().getType();
@@ -214,44 +221,15 @@ public class DocumentsActivity extends BaseActivity { 
    @Override

    public boolean onPrepareOptionsMenu(Menu menu) {

        super.onPrepareOptionsMenu(menu);

        mMenuManager.updateOptionMenu(menu, mDetails);



        final DocumentInfo cwd = getCurrentDirectory();



        boolean picking = mState.action == ACTION_CREATE

                || mState.action == ACTION_OPEN_TREE

                || mState.action == ACTION_PICK_COPY_DESTINATION;



        if (picking) {

            // May already be hidden because the root

            // doesn't support search.

            mSearchManager.showMenu(false);

        }



        final MenuItem createDir = menu.findItem(R.id.menu_create_dir);

        final MenuItem grid = menu.findItem(R.id.menu_grid);

        final MenuItem list = menu.findItem(R.id.menu_list);

        final MenuItem fileSize = menu.findItem(R.id.menu_file_size);





        createDir.setVisible(picking);

        createDir.setEnabled(canCreateDirectory());



        // No display options in recent directories

        boolean inRecents = cwd == null;

        if (picking && inRecents) {

            grid.setVisible(false);

            list.setVisible(false);

        }



        fileSize.setVisible(fileSize.isVisible() && !picking);



        if (mState.action == ACTION_CREATE) {

            final FragmentManager fm = getFragmentManager();

            SaveFragment.get(fm).prepareForDirectory(cwd);

        }



        Menus.disableHiddenItems(menu);



        return true;

    }
@@ -424,6 +402,18 @@ public class DocumentsActivity extends BaseActivity { 
        return (DocumentsActivity) fragment.getActivity();

    }



    @Override

    public FragmentTuner createFragmentTuner() {

        // Currently DocumentsTuner maintains a state specific to the fragment instance. Because of

        // that, we create a new instance everytime it is needed

        return new DocumentsTuner(this, getDisplayState());

    }



    @Override

    public MenuManager getMenuManager() {

        return mMenuManager;

    }



    /**

     * Loads the last used path (stack) from Recents (history).

     * The path selected is based on the calling package name. So the last

src/com/android/documentsui/DocumentsMenuManager.java

0 → 100644
+87 −0
Original line number Diff line number Diff line 
/*

 * 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 static com.android.documentsui.State.ACTION_CREATE;

import static com.android.documentsui.State.ACTION_GET_CONTENT;

import static com.android.documentsui.State.ACTION_OPEN;

import static com.android.documentsui.State.ACTION_OPEN_TREE;

import static com.android.documentsui.State.ACTION_PICK_COPY_DESTINATION;



import android.view.Menu;

import android.view.MenuItem;



final class DocumentsMenuManager implements MenuManager {



  private final State mState;

  private final SearchViewManager mSearchManager;



  public DocumentsMenuManager(SearchViewManager searchManager, State displayState) {

       mSearchManager = searchManager;

       mState = displayState;

  }



  @Override

  public void updateActionMenu(Menu menu, MenuManager.SelectionDetails selection) {

      MenuItem open = menu.findItem(R.id.menu_open);

      MenuItem share = menu.findItem(R.id.menu_share);

      MenuItem delete = menu.findItem(R.id.menu_delete);

      MenuItem rename = menu.findItem(R.id.menu_rename);

      MenuItem selectAll = menu.findItem(R.id.menu_select_all);



      open.setVisible(mState.action == ACTION_GET_CONTENT

              || mState.action == ACTION_OPEN);

      share.setVisible(false);

      delete.setVisible(false);

      rename.setVisible(false);

      selectAll.setVisible(mState.allowMultiple);



      Menus.disableHiddenItems(menu);

  }



    @Override

    public void updateOptionMenu(Menu menu, DirectoryDetails details) {



        boolean picking = mState.action == ACTION_CREATE

                || mState.action == ACTION_OPEN_TREE

                || mState.action == ACTION_PICK_COPY_DESTINATION;



        if (picking) {

            // May already be hidden because the root

            // doesn't support search.

            mSearchManager.showMenu(false);

        }



        final MenuItem createDir = menu.findItem(R.id.menu_create_dir);

        final MenuItem fileSize = menu.findItem(R.id.menu_file_size);



        createDir.setVisible(picking);

        createDir.setEnabled(details.canCreateDirectory());



        // No display options in recent directories

        if (picking && details.isInRecents()) {

            final MenuItem grid = menu.findItem(R.id.menu_grid);

            final MenuItem list = menu.findItem(R.id.menu_list);

            grid.setVisible(false);

            list.setVisible(false);

        }



        fileSize.setVisible(fileSize.isVisible() && !picking);



        Menus.disableHiddenItems(menu);

    }

}

src/com/android/documentsui/FilesActivity.java

+23 −17
Original line number Diff line number Diff line
@@ -36,10 +36,13 @@ import android.view.KeyEvent; 
import android.view.Menu;

import android.view.MenuItem;



import com.android.documentsui.MenuManager.DirectoryDetails;

import com.android.documentsui.OperationDialogFragment.DialogType;

import com.android.documentsui.RecentsProvider.ResumeColumns;

import com.android.documentsui.dirlist.AnimationView;

import com.android.documentsui.dirlist.DirectoryFragment;

import com.android.documentsui.dirlist.FragmentTuner;

import com.android.documentsui.dirlist.FragmentTuner.FilesTuner;

import com.android.documentsui.dirlist.Model;

import com.android.documentsui.model.DocumentInfo;

import com.android.documentsui.model.DocumentStack;
@@ -67,6 +70,8 @@ public class FilesActivity extends BaseActivity { 
    // We use the time gap to figure out whether to close app or reopen the drawer.

    private long mDrawerLastFiddled;

    private DocumentClipper mClipper;

    private FilesMenuManager mMenuManager;

    private DirectoryDetails mDetails;



    public FilesActivity() {

        super(R.layout.files_activity, TAG);
@@ -77,6 +82,13 @@ public class FilesActivity extends BaseActivity { 
        super.onCreate(icicle);



        mClipper = DocumentsApplication.getDocumentClipper(this);

        mMenuManager = new FilesMenuManager(mSearchManager);

        mDetails = new DirectoryDetails(this) {

            @Override

            public boolean hasItemsToPaste() {

                return mClipper.hasItemsToPaste();

            }

        };



        RootsFragment.show(getFragmentManager(), null);
@@ -198,23 +210,7 @@ public class FilesActivity extends BaseActivity { 
    @Override

    public boolean onPrepareOptionsMenu(Menu menu) {

        super.onPrepareOptionsMenu(menu);



        final RootInfo root = getCurrentRoot();



        final MenuItem createDir = menu.findItem(R.id.menu_create_dir);

        final MenuItem pasteFromCb = menu.findItem(R.id.menu_paste_from_clipboard);

        final MenuItem settings = menu.findItem(R.id.menu_settings);

        final MenuItem newWindow = menu.findItem(R.id.menu_new_window);



        createDir.setVisible(true);

        createDir.setEnabled(canCreateDirectory());

        pasteFromCb.setEnabled(mClipper.hasItemsToPaste());

        settings.setVisible(root.hasSettings());

        newWindow.setVisible(Shared.shouldShowFancyFeatures(this));



        Menus.disableHiddenItems(menu, pasteFromCb);

        // It hides icon if searching in progress

        mSearchManager.updateMenu();

        mMenuManager.updateOptionMenu(menu, mDetails);

        return true;

    }
@@ -462,6 +458,16 @@ public class FilesActivity extends BaseActivity { 
        finish();

    }



    @Override

    public FragmentTuner createFragmentTuner() {

      return new FilesTuner(this, getDisplayState());

    }



    @Override

    public MenuManager getMenuManager() {

      return mMenuManager;

    }



    /**

     * Builds a stack for the specific Uris. Multi roots are not supported, as it's impossible

     * to know which root to select. Also, the stack doesn't contain intermediate directories.

src/com/android/documentsui/FilesMenuManager.java

0 → 100644
+87 −0
Original line number Diff line number Diff line 
/*

 * 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.R;



final class FilesMenuManager implements MenuManager {



    private final SearchViewManager mSearchManager;



    public FilesMenuManager(SearchViewManager searchManager) {

        mSearchManager = searchManager;

    }



    @Override

    public void updateActionMenu(Menu menu, SelectionDetails selection) {



        menu.findItem(R.id.menu_open).setVisible(false); // "open" is never used in Files.



        // Commands accessible only via keyboard...

        MenuItem copy = menu.findItem(R.id.menu_copy_to_clipboard);

        MenuItem paste = menu.findItem(R.id.menu_paste_from_clipboard);



        // Commands visible in the UI...

        MenuItem rename = menu.findItem(R.id.menu_rename);

        MenuItem moveTo = menu.findItem(R.id.menu_move_to);

        MenuItem copyTo = menu.findItem(R.id.menu_copy_to);

        MenuItem share = menu.findItem(R.id.menu_share);

        MenuItem delete = menu.findItem(R.id.menu_delete);



        // Commands usually on action-bar, so we always manage visibility.

        share.setVisible(!selection.containsDirectories() && !selection.containsPartialFiles());

        delete.setVisible(selection.canDelete());



        // Commands always in overflow, so we don't bother showing/hiding...

        copyTo.setVisible(true);

        moveTo.setVisible(true);

        rename.setVisible(true);



        // copy is not visible, keyboard only

        copy.setEnabled(!selection.containsPartialFiles());



        copyTo.setEnabled(!selection.containsPartialFiles());

        moveTo.setEnabled(!selection.containsPartialFiles() && selection.canDelete());

        rename.setEnabled(!selection.containsPartialFiles() && selection.canRename());



        Menus.disableHiddenItems(menu, copy, paste);

    }



    @Override

    public void updateOptionMenu(Menu menu, DirectoryDetails details) {



        final MenuItem createDir = menu.findItem(R.id.menu_create_dir);

        final MenuItem pasteFromCb = menu.findItem(R.id.menu_paste_from_clipboard);

        final MenuItem settings = menu.findItem(R.id.menu_settings);

        final MenuItem newWindow = menu.findItem(R.id.menu_new_window);



        createDir.setVisible(true);

        createDir.setEnabled(details.canCreateDirectory());

        pasteFromCb.setEnabled(details.hasItemsToPaste());

        settings.setVisible(details.hasRootSettings());

        newWindow.setVisible(details.shouldShowFancyFeatures());



        Menus.disableHiddenItems(menu, pasteFromCb);



        // It hides icon if searching in progress

        mSearchManager.updateMenu();

    }



}