Implementing a package install progress listener for L

issue: 15835307

Change-Id: I71aaea087963f2e0e1206447190cbe23c174057d

src/com/android/launcher3/compat/PackageInstallerCompatVL.java

@@ -0,0 +1,159 @@
+/*
+ * Copyright (C) 2014 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.compat;
+
+import android.content.Context;
+import android.content.pm.InstallSessionInfo;
+import android.content.pm.PackageInstaller;
+import android.content.pm.PackageInstaller.SessionCallback;
+import android.util.Log;
+import android.util.SparseArray;
+
+import com.android.launcher3.LauncherAppState;
+import com.android.launcher3.ShortcutInfo;
+
+import java.util.ArrayList;
+
+public class PackageInstallerCompatVL extends PackageInstallerCompat {
+
+    private static final String TAG = "PackageInstallerCompatVL";
+    private static final boolean DEBUG = false;
+
+    private final SparseArray<InstallSessionInfo> mPendingReplays = new SparseArray<>();
+    private final PackageInstaller mInstaller;
+
+    private boolean mResumed;
+    private boolean mBound;
+
+    PackageInstallerCompatVL(Context context) {
+        mInstaller = context.getPackageManager().getPackageInstaller();
+
+        mResumed = false;
+        mBound = false;
+
+        mInstaller.addSessionCallback(mCallback);
+        // On start, send updates for all active sessions
+        for (InstallSessionInfo info : mInstaller.getAllSessions()) {
+            mPendingReplays.append(info.getSessionId(), info);
+        }
+    }
+
+    @Override
+    public void onStop() {
+        mInstaller.removeSessionCallback(mCallback);
+    }
+
+    @Override
+    public void onFinishBind() {
+        mBound = true;
+        replayUpdates(null);
+    }
+
+    @Override
+    public void onPause() {
+        mResumed = false;
+    }
+
+    @Override
+    public void onResume() {
+        mResumed = true;
+        replayUpdates(null);
+    }
+
+    @Override
+    public void recordPackageUpdate(String packageName, int state, int progress) {
+        // No op
+    }
+
+    private void replayUpdates(PackageInstallInfo newInfo) {
+        if (DEBUG) Log.d(TAG, "updates resumed");
+        if (!mResumed || !mBound) {
+            // Not yet ready
+            return;
+        }
+        if ((mPendingReplays.size() == 0) && (newInfo == null)) {
+            // Nothing to update
+            return;
+        }
+
+        LauncherAppState app = LauncherAppState.getInstanceNoCreate();
+        if (app == null) {
+            // Try again later
+            if (DEBUG) Log.d(TAG, "app is null, delaying send");
+            return;
+        }
+
+        ArrayList<PackageInstallInfo> updates = new ArrayList<>();
+        if (newInfo != null) {
+            updates.add(newInfo);
+        }
+        for (int i = mPendingReplays.size() - 1; i > 0; i--) {
+            InstallSessionInfo session = mPendingReplays.valueAt(i);
+            if (session.getAppPackageName() != null) {
+                updates.add(new PackageInstallInfo(session.getAppPackageName(),
+                        ShortcutInfo.PACKAGE_STATE_INSTALLING,
+                        (int) (session.getProgress() * 100)));
+            }
+        }
+        mPendingReplays.clear();
+        if (!updates.isEmpty()) {
+            app.setPackageState(updates);
+        }
+    }
+
+    private final SessionCallback mCallback = new SessionCallback() {
+
+        @Override
+        public void onCreated(int sessionId) {
+            InstallSessionInfo session = mInstaller.getSessionInfo(sessionId);
+            if (session != null) {
+                mPendingReplays.put(sessionId, session);
+                replayUpdates(null);
+            }
+        }
+
+        @Override
+        public void onFinished(int sessionId, boolean success) {
+            mPendingReplays.remove(sessionId);
+            InstallSessionInfo session = mInstaller.getSessionInfo(sessionId);
+            if ((session != null) && (session.getAppPackageName() != null)) {
+                // Replay all updates with a one time update for this installed package. No
+                // need to store this record for future updates, as the app list will get
+                // refreshed on resume.
+                replayUpdates(new PackageInstallInfo(session.getAppPackageName(),
+                        success ? ShortcutInfo.PACKAGE_STATE_DEFAULT
+                                : ShortcutInfo.PACKAGE_STATE_ERROR, 0));
+            }
+        }
+
+        @Override
+        public void onProgressChanged(int sessionId, float progress) {
+            InstallSessionInfo session = mInstaller.getSessionInfo(sessionId);
+            if (session != null) {
+                mPendingReplays.put(sessionId, session);
+                replayUpdates(null);
+            }
+        }
+
+        @Override
+        public void onOpened(int sessionId) { }
+
+        @Override
+        public void onClosed(int sessionId) { }
+
+    };
+}