/* * 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.queries; import static com.android.documentsui.base.SharedMinimal.DEBUG; import android.content.Context; import android.support.annotation.VisibleForTesting; import android.text.TextUtils; import android.util.Log; import com.android.documentsui.DocumentsApplication; import com.android.documentsui.R; import com.android.documentsui.base.DebugFlags; import com.android.documentsui.base.EventHandler; import com.android.documentsui.base.Features; import java.util.ArrayList; import java.util.List; public final class CommandInterceptor implements EventHandler { @VisibleForTesting static final String COMMAND_PREFIX = ":"; private static final String TAG = "CommandInterceptor"; private final List> mCommands = new ArrayList<>(); private Features mFeatures; public CommandInterceptor(Features features) { mFeatures = features; mCommands.add(this::quickViewer); mCommands.add(this::gestureScale); mCommands.add(this::jobProgressDialog); mCommands.add(this::archiveCreation); mCommands.add(this::docInspector); mCommands.add(this::docDetails); mCommands.add(this::forcePaging); } public void add(EventHandler handler) { mCommands.add(handler); } @Override public boolean accept(String query) { if (!mFeatures.isDebugSupportEnabled()) { return false; } if (!mFeatures.isCommandInterceptorEnabled()) { if (DEBUG) Log.v(TAG, "Skipping input, command interceptor disabled."); return false; } if (query.length() > COMMAND_PREFIX.length() && query.startsWith(COMMAND_PREFIX)) { String[] tokens = query.substring(COMMAND_PREFIX.length()).split("\\s+"); for (EventHandler command : mCommands) { if (command.accept(tokens)) { return true; } } Log.d(TAG, "Unrecognized debug command: " + query); } return false; } private boolean quickViewer(String[] tokens) { if ("qv".equals(tokens[0])) { if (tokens.length == 2 && !TextUtils.isEmpty(tokens[1])) { DebugFlags.setQuickViewer(tokens[1]); Log.i(TAG, "Set quick viewer to: " + tokens[1]); return true; } else { Log.w(TAG, "Invalid command structure: " + TextUtils.join(" ", tokens)); } } else if ("deqv".equals(tokens[0])) { Log.i(TAG, "Unset quick viewer"); DebugFlags.setQuickViewer(null); return true; } return false; } private boolean gestureScale(String[] tokens) { if ("gs".equals(tokens[0])) { if (tokens.length == 2 && !TextUtils.isEmpty(tokens[1])) { boolean enabled = asBool(tokens[1]); mFeatures.forceFeature(R.bool.feature_gesture_scale, enabled); Log.i(TAG, "Set gesture scale enabled to: " + enabled); return true; } Log.w(TAG, "Invalid command structure: " + TextUtils.join(" ", tokens)); } return false; } private boolean jobProgressDialog(String[] tokens) { if ("jpd".equals(tokens[0])) { if (tokens.length == 2 && !TextUtils.isEmpty(tokens[1])) { boolean enabled = asBool(tokens[1]); mFeatures.forceFeature(R.bool.feature_job_progress_dialog, enabled); Log.i(TAG, "Set job progress dialog enabled to: " + enabled); return true; } Log.w(TAG, "Invalid command structure: " + TextUtils.join(" ", tokens)); } return false; } private boolean archiveCreation(String[] tokens) { if ("zip".equals(tokens[0])) { if (tokens.length == 2 && !TextUtils.isEmpty(tokens[1])) { boolean enabled = asBool(tokens[1]); mFeatures.forceFeature(R.bool.feature_archive_creation, enabled); Log.i(TAG, "Set gesture scale enabled to: " + enabled); return true; } Log.w(TAG, "Invalid command structure: " + TextUtils.join(" ", tokens)); } return false; } private boolean docInspector(String[] tokens) { if ("inspect".equals(tokens[0])) { if (tokens.length == 2 && !TextUtils.isEmpty(tokens[1])) { boolean enabled = asBool(tokens[1]); mFeatures.forceFeature(R.bool.feature_inspector, enabled); Log.i(TAG, "Set doc inspector enabled to: " + enabled); return true; } Log.w(TAG, "Invalid command structure: " + TextUtils.join(" ", tokens)); } return false; } private boolean docDetails(String[] tokens) { if ("docinfo".equals(tokens[0])) { if (tokens.length == 2 && !TextUtils.isEmpty(tokens[1])) { boolean enabled = asBool(tokens[1]); DebugFlags.setDocumentDetailsEnabled(enabled); Log.i(TAG, "Set doc details enabled to: " + enabled); return true; } Log.w(TAG, "Invalid command structure: " + TextUtils.join(" ", tokens)); } return false; } private boolean forcePaging(String[] tokens) { if ("page".equals(tokens[0])) { if (tokens.length >= 2) { try { int offset = Integer.parseInt(tokens[1]); int limit = (tokens.length == 3) ? Integer.parseInt(tokens[2]) : -1; DebugFlags.setForcedPaging(offset, limit); Log.i(TAG, "Set forced paging to offset: " + offset + ", limit: " + limit); return true; } catch (NumberFormatException e) { Log.w(TAG, "Command input does not contain valid numbers: " + TextUtils.join(" ", tokens)); return false; } } else { Log.w(TAG, "Invalid command structure: " + TextUtils.join(" ", tokens)); } } else if ("deqv".equals(tokens[0])) { Log.i(TAG, "Unset quick viewer"); DebugFlags.setQuickViewer(null); return true; } return false; } private final boolean asBool(String val) { if (val == null || val.equals("0")) { return false; } if (val.equals("1")) { return true; } return Boolean.valueOf(val); } public static final class DumpRootsCacheHandler implements EventHandler { private final Context mContext; public DumpRootsCacheHandler(Context context) { mContext = context; } @Override public boolean accept(String[] tokens) { if ("dumpCache".equals(tokens[0])) { DocumentsApplication.getProvidersCache(mContext).logCache(); return true; } return false; } } /** * Wraps {@link CommandInterceptor} in a tiny decorator that adds support for * enabling CommandInterceptor feature based on some magic query input. * *

It's like super meta, maaaannn. */ public static final EventHandler createDebugModeFlipper( Features features, Runnable debugFlipper, CommandInterceptor interceptor) { if (!features.isDebugSupportEnabled()) { return interceptor; } String magicString1 = COMMAND_PREFIX + "wwssadadba"; String magicString2 = "up up down down left right left right b a"; return new EventHandler() { @Override public boolean accept(String query) { assert(features.isDebugSupportEnabled()); if (magicString1.equals(query) || magicString2.equals(query)) { debugFlipper.run(); } return interceptor.accept(query); } }; } }