Merge "Wrapping folderLisners with weak reference, and storing it as an array"... (192ae6ca) · Commits · e / os / android_packages_apps_Trebuchet

src/com/android/launcher3/FolderInfo.java

+24 −27

Original line number	Diff line number	Diff line
		@@ -21,6 +21,7 @@ import android.content.Context;

		import com.android.launcher3.compat.UserHandleCompat;

		import java.lang.ref.WeakReference;
		import java.util.ArrayList;

		/**
		@@ -57,7 +58,11 @@ public class FolderInfo extends ItemInfo {
		*/
		public ArrayList<ShortcutInfo> contents = new ArrayList<ShortcutInfo>();

		ArrayList<FolderListener> listeners = new ArrayList<FolderListener>();
		/**
		* A collection of listeners for folder info changes. Since this listeners are implemented by
		* the UI objects, using a WeakReference prevents context leaks.
		*/
		private WeakReference<FolderListener> mListener;

		public FolderInfo() {
		itemType = LauncherSettings.Favorites.ITEM_TYPE_FOLDER;
		@@ -71,8 +76,9 @@ public class FolderInfo extends ItemInfo {
		*/
		public void add(ShortcutInfo item, boolean animate) {
		contents.add(item);
		for (int i = 0; i < listeners.size(); i++) {
		listeners.get(i).onAdd(item);
		FolderListener listener = mListener == null ? null : mListener.get();
		if (listener != null) {
		listener.onAdd(item);
		}
		itemsChanged(animate);
		}
		@@ -84,19 +90,13 @@ public class FolderInfo extends ItemInfo {
		*/
		public void remove(ShortcutInfo item, boolean animate) {
		contents.remove(item);
		for (int i = 0; i < listeners.size(); i++) {
		listeners.get(i).onRemove(item);
		FolderListener listener = mListener == null ? null : mListener.get();
		if (listener != null) {
		listener.onRemove(item);
		}
		itemsChanged(animate);
		}

		public void setTitle(CharSequence title) {
		this.title = title;
		for (int i = 0; i < listeners.size(); i++) {
		listeners.get(i).onTitleChanged(title);
		}
		}

		@Override
		void onAddToDatabase(Context context, ContentValues values) {
		super.onAddToDatabase(context, values);
		@@ -105,33 +105,30 @@ public class FolderInfo extends ItemInfo {

		}

		public void addListener(FolderListener listener) {
		listeners.add(listener);
		}

		void removeListener(FolderListener listener) {
		if (listeners.contains(listener)) {
		listeners.remove(listener);
		}
		/**
		* Registers a listener for info change events.
		*/
		public void setListener(FolderListener listener) {
		mListener = new WeakReference<>(listener);
		}

		public void itemsChanged(boolean animate) {
		for (int i = 0; i < listeners.size(); i++) {
		listeners.get(i).onItemsChanged(animate);
		FolderListener listener = mListener == null ? null : mListener.get();
		if (listener != null) {
		listener.onItemsChanged(animate);
		}
		}

		@Override
		void unbind() {
		super.unbind();
		listeners.clear();
		mListener = null;
		}

		public interface FolderListener {
		public void onAdd(ShortcutInfo item);
		public void onRemove(ShortcutInfo item);
		public void onTitleChanged(CharSequence title);
		public void onItemsChanged(boolean animate);
		void onAdd(ShortcutInfo item);
		void onRemove(ShortcutInfo item);
		void onItemsChanged(boolean animate);
		}

		@Override

src/com/android/launcher3/folder/Folder.java

+5 −7

Original line number	Diff line number	Diff line
		@@ -348,13 +348,14 @@ public class Folder extends LinearLayout implements DragSource, View.OnClickList
		mFolderName.setHint(sHintText);
		// Convert to a string here to ensure that no other state associated with the text field
		// gets saved.
		String newTitle = mFolderName.getText().toString();
		mInfo.setTitle(newTitle);
		mInfo.title = mFolderName.getText().toString();
		mFolderIcon.onTitleChanged(mInfo.title);

		LauncherModel.updateItemInDatabase(mLauncher, mInfo);

		if (commit) {
		sendCustomAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED,
		getContext().getString(R.string.folder_renamed, newTitle));
		getContext().getString(R.string.folder_renamed, mInfo.title));
		}

		// This ensures that focus is gained every time the field is clicked, which selects all
		@@ -448,7 +449,6 @@ public class Folder extends LinearLayout implements DragSource, View.OnClickList

		mItemsInvalidated = true;
		updateTextViewFocus();
		mInfo.addListener(this);

		if (!sDefaultFolderName.contentEquals(mInfo.title)) {
		mFolderName.setText(mInfo.title);
		@@ -1349,6 +1349,7 @@ public class Folder extends LinearLayout implements DragSource, View.OnClickList
		mLauncher, item, mInfo.id, 0, item.cellX, item.cellY);
		}

		@Override
		public void onRemove(ShortcutInfo item) {
		mItemsInvalidated = true;
		// If this item is being dragged from this open folder, we have already handled
		@@ -1385,9 +1386,6 @@ public class Folder extends LinearLayout implements DragSource, View.OnClickList
		updateTextViewFocus();
		}

		public void onTitleChanged(CharSequence title) {
		}

		public ArrayList<View> getItemsInReadingOrder() {
		if (mItemsInvalidated) {
		mItemsInReadingOrder.clear();

src/com/android/launcher3/folder/FolderIcon.java

+4 −3

Original line number	Diff line number	Diff line
		@@ -183,10 +183,9 @@ public class FolderIcon extends FrameLayout implements FolderListener {
		folder.setFolderIcon(icon);
		folder.bind(folderInfo);
		icon.setFolder(folder);

		folderInfo.addListener(icon);

		icon.setOnFocusChangeListener(launcher.mFocusHandler);

		folderInfo.setListener(new MultiFolderListener(folder, icon));
		return icon;
		}

		@@ -944,11 +943,13 @@ public class FolderIcon extends FrameLayout implements FolderListener {
		requestLayout();
		}

		@Override
		public void onAdd(ShortcutInfo item) {
		invalidate();
		requestLayout();
		}

		@Override
		public void onRemove(ShortcutInfo item) {
		invalidate();
		requestLayout();

src/com/android/launcher3/folder/MultiFolderListener.java

0 → 100644

+52 −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.launcher3.folder;

		import com.android.launcher3.FolderInfo.FolderListener;
		import com.android.launcher3.ShortcutInfo;

		/**
		* An implementation of {@link FolderListener} which passes the events to 2 children.
		*/
		public class MultiFolderListener implements FolderListener {

		private final FolderListener mListener1;
		private final FolderListener mListener2;

		public MultiFolderListener(FolderListener listener1, FolderListener listener2) {
		mListener1 = listener1;
		mListener2 = listener2;
		}

		@Override
		public void onAdd(ShortcutInfo item) {
		mListener1.onAdd(item);
		mListener2.onAdd(item);
		}

		@Override
		public void onRemove(ShortcutInfo item) {
		mListener1.onRemove(item);
		mListener2.onRemove(item);
		}

		@Override
		public void onItemsChanged(boolean animate) {
		mListener1.onItemsChanged(animate);
		mListener2.onItemsChanged(animate);
		}
		}