Add focus to directory after creating them via CreateDirFragment. (447dd5bd) · Commits · e / os / android_packages_apps_DocumentsUI

src/com/android/documentsui/BaseActivity.java

+1 −6

Original line number	Diff line number	Diff line
		@@ -138,6 +138,7 @@ public abstract class BaseActivity extends Activity
		abstract void refreshDirectory(int anim);
		/** Allows sub-classes to include information in a newly created State instance. */
		abstract void includeState(State initialState);
		abstract void onDirectoryCreated(DocumentInfo doc);

		public BaseActivity(@LayoutRes int layoutId, String tag) {
		mLayoutId = layoutId;
		@@ -332,12 +333,6 @@ public abstract class BaseActivity extends Activity
		CreateDirectoryFragment.show(getFragmentManager());
		}

		void onDirectoryCreated(DocumentInfo doc) {
		// By default we do nothing, just let the new directory appear.
		// DocumentsActivity auto-opens directories after creating them
		// As that is more attuned to the "picker" use cases it supports.
		}

		/**
		* Returns true if a directory can be created in the current location.
		* @return

src/com/android/documentsui/FilesActivity.java

+6 −0

Original line number	Diff line number	Diff line
		@@ -323,6 +323,12 @@ public class FilesActivity extends BaseActivity {
		}
		}

		@Override
		void onDirectoryCreated(DocumentInfo doc) {
		assert(doc.isDirectory());
		getDirectoryFragment().getFocusManager().onDirectoryCreated(doc.documentId);
		}

		@Override
		public void springOpenDirectory(DocumentInfo doc) {
		assert(doc.isContainer());

src/com/android/documentsui/dirlist/DirectoryFragment.java

+13 −2

Original line number	Diff line number	Diff line
		@@ -290,7 +290,14 @@ public class DirectoryFragment extends Fragment

		mRecView.setAdapter(mAdapter);

		mLayout = new GridLayoutManager(getContext(), mColumnCount);
		mLayout = new GridLayoutManager(getContext(), mColumnCount) {
		@Override
		public void onLayoutCompleted(RecyclerView.State state) {
		super.onLayoutCompleted(state);
		mFocusManager.onLayoutCompleted();
		}
		};

		SpanSizeLookup lookup = mAdapter.createSpanSizeLookup();
		if (lookup != null) {
		mLayout.setSpanSizeLookup(lookup);
		@@ -310,7 +317,7 @@ public class DirectoryFragment extends Fragment
		mModel.addUpdateListener(mModelUpdateListener);

		// Make sure this is done after the RecyclerView and the Model are set up.
		mFocusManager = new FocusManager(context, mRecView, mModel);
		mFocusManager = new FocusManager(mRecView, mModel, context.getColor(R.color.accent_dark));

		final int edgeHeight = (int) getResources().getDimension(R.dimen.autoscroll_edge_height);
		GestureSelector gestureSel = GestureSelector.create(
		@@ -1191,6 +1198,10 @@ public class DirectoryFragment extends Fragment
		return mModel;
		}

		public FocusManager getFocusManager() {
		return mFocusManager;
		}

		@Override
		public boolean isDocumentEnabled(String docMimeType, int docFlags) {
		return mTuner.isDocumentEnabled(docMimeType, docFlags);

src/com/android/documentsui/dirlist/FocusHandler.java

+4 −0

Original line number	Diff line number	Diff line
		@@ -38,6 +38,10 @@ interface FocusHandler extends View.OnFocusChangeListener {
		@Override
		void onFocusChange(View v, boolean hasFocus);

		void onLayoutCompleted();

		void onDirectoryCreated(String modelId);

		/**
		* Requests focus on the item that last had focus. Scrolls to that item if necessary.
		*/

src/com/android/documentsui/dirlist/FocusManager.java

+44 −7

Original line number	Diff line number	Diff line
		@@ -18,8 +18,8 @@ package com.android.documentsui.dirlist;

		import static com.android.documentsui.model.DocumentInfo.getCursorString;

		import android.annotation.ColorRes;
		import android.annotation.Nullable;
		import android.content.Context;
		import android.database.Cursor;
		import android.os.Handler;
		import android.os.Looper;
		@@ -39,7 +39,6 @@ import android.view.View;
		import android.widget.TextView;

		import com.android.documentsui.Events;
		import com.android.documentsui.R;

		import java.util.ArrayList;
		import java.util.List;
		@@ -49,7 +48,7 @@ import java.util.TimerTask;
		/**
		* A class that handles navigation and focus within the DirectoryFragment.
		*/
		final class FocusManager implements FocusHandler {
		public final class FocusManager implements FocusHandler {
		private static final String TAG = "FocusManager";

		private RecyclerView mView;
		@@ -58,10 +57,11 @@ final class FocusManager implements FocusHandler {

		private TitleSearchHelper mSearchHelper;
		private Model mModel;
		private @Nullable String mPendingFocusId;

		private int mLastFocusPosition = RecyclerView.NO_POSITION;

		public FocusManager(Context context, RecyclerView view, Model model) {
		public FocusManager(RecyclerView view, Model model, @ColorRes int color) {
		assert (view != null);
		assert (model != null);
		mView = view;
		@@ -69,7 +69,7 @@ final class FocusManager implements FocusHandler {
		mLayout = (GridLayoutManager) view.getLayoutManager();
		mModel = model;

		mSearchHelper = new TitleSearchHelper(context);
		mSearchHelper = new TitleSearchHelper(color);
		}

		@Override
		@@ -126,6 +126,38 @@ final class FocusManager implements FocusHandler {
		}
		}

		/*
		* Attempts to reset focus on the item corresponding to {@code mPendingFocusId} if it exists and
		* has a valid position in the adapter. It then automatically resets {@code mPendingFocusId}.
		*/
		@Override
		public void onLayoutCompleted() {
		if (mPendingFocusId == null) {
		return;
		}

		int pos = mAdapter.getModelIds().indexOf(mPendingFocusId);
		if (pos != -1) {
		focusItem(pos);
		}
		mPendingFocusId = null;
		}

		/*
		* Attempts to put focus on the document associated with the given modelId. If item does not
		* exist yet in the layout, this sets a pending modelId to be used when
		* {@code #applyPendingFocus()} is called next time.
		*/
		@Override
		public void onDirectoryCreated(String modelId) {
		int pos = mAdapter.getModelIds().indexOf(modelId);
		if (pos != -1 && mView.findViewHolderForAdapterPosition(pos) != null) {
		focusItem(pos);
		} else {
		mPendingFocusId = modelId;
		}
		}

		@Override
		public int getFocusPosition() {
		return mLastFocusPosition;
		@@ -267,6 +299,11 @@ final class FocusManager implements FocusHandler {
		* @param callback A callback to call after the given item has been focused.
		*/
		private void focusItem(final int pos, @Nullable final FocusCallback callback) {
		if (mPendingFocusId != null) {
		Log.v(TAG, "clearing pending focus id: " + mPendingFocusId);
		mPendingFocusId = null;
		}

		// If the item is already in view, focus it; otherwise, scroll to it and focus it.
		RecyclerView.ViewHolder vh = mView.findViewHolderForAdapterPosition(pos);
		if (vh != null) {
		@@ -333,8 +370,8 @@ final class FocusManager implements FocusHandler {
		private KeyEvent mLastEvent;
		private Handler mUiRunner;

		public TitleSearchHelper(Context context) {
		mSpan = new BackgroundColorSpan(context.getColor(R.color.accent_dark));
		public TitleSearchHelper(@ColorRes int color) {
		mSpan = new BackgroundColorSpan(color);
		// Handler for running things on the main UI thread. Needed for updating the UI from a
		// timer (see #activate, below).
		mUiRunner = new Handler(Looper.getMainLooper());