| /* |
| * Copyright (C) 2009 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 android.view.accessibility; |
| |
| import android.annotation.IntDef; |
| import android.os.Parcel; |
| import android.os.Parcelable; |
| import android.text.TextUtils; |
| import android.util.Pools.SynchronizedPool; |
| |
| import com.android.internal.util.BitUtils; |
| |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * <p> |
| * This class represents accessibility events that are sent by the system when |
| * something notable happens in the user interface. For example, when a |
| * {@link android.widget.Button} is clicked, a {@link android.view.View} is focused, etc. |
| * </p> |
| * <p> |
| * An accessibility event is fired by an individual view which populates the event with |
| * data for its state and requests from its parent to send the event to interested |
| * parties. The parent can optionally modify or even block the event based on its broader |
| * understanding of the user interface's context. |
| * </p> |
| * <p> |
| * The main purpose of an accessibility event is to communicate changes in the UI to an |
| * {@link android.accessibilityservice.AccessibilityService}. The service may then inspect, |
| * if needed the user interface by examining the View hierarchy, as represented by a tree of |
| * {@link AccessibilityNodeInfo}s (snapshot of a View state) |
| * which can be used for exploring the window content. Note that the privilege for accessing |
| * an event's source, thus the window content, has to be explicitly requested. For more |
| * details refer to {@link android.accessibilityservice.AccessibilityService}. If an |
| * accessibility service has not requested to retrieve the window content the event will |
| * not contain reference to its source. Also for events of type |
| * {@link #TYPE_NOTIFICATION_STATE_CHANGED} the source is never available. |
| * </p> |
| * <p> |
| * This class represents various semantically different accessibility event |
| * types. Each event type has an associated set of related properties. In other |
| * words, each event type is characterized via a subset of the properties exposed |
| * by this class. For each event type there is a corresponding constant defined |
| * in this class. Follows a specification of the event types and their associated properties: |
| * </p> |
| * <div class="special reference"> |
| * <h3>Developer Guides</h3> |
| * <p>For more information about creating and processing AccessibilityEvents, read the |
| * <a href="{@docRoot}guide/topics/ui/accessibility/index.html">Accessibility</a> |
| * developer guide.</p> |
| * </div> |
| * <p> |
| * <b>VIEW TYPES</b></br> |
| * </p> |
| * <p> |
| * <b>View clicked</b> - represents the event of clicking on a {@link android.view.View} |
| * like {@link android.widget.Button}, {@link android.widget.CompoundButton}, etc.</br> |
| * <em>Type:</em>{@link #TYPE_VIEW_CLICKED}</br> |
| * <em>Properties:</em></br> |
| * <ul> |
| * <li>{@link #getEventType()} - The type of the event.</li> |
| * <li>{@link #getSource()} - The source info (for registered clients).</li> |
| * <li>{@link #getClassName()} - The class name of the source.</li> |
| * <li>{@link #getPackageName()} - The package name of the source.</li> |
| * <li>{@link #getEventTime()} - The event time.</li> |
| * </ul> |
| * </p> |
| * <p> |
| * <b>View long clicked</b> - represents the event of long clicking on a {@link android.view.View} |
| * like {@link android.widget.Button}, {@link android.widget.CompoundButton}, etc </br> |
| * <em>Type:</em>{@link #TYPE_VIEW_LONG_CLICKED}</br> |
| * <em>Properties:</em></br> |
| * <ul> |
| * <li>{@link #getEventType()} - The type of the event.</li> |
| * <li>{@link #getSource()} - The source info (for registered clients).</li> |
| * <li>{@link #getClassName()} - The class name of the source.</li> |
| * <li>{@link #getPackageName()} - The package name of the source.</li> |
| * <li>{@link #getEventTime()} - The event time.</li> |
| * </ul> |
| * </p> |
| * <p> |
| * <b>View selected</b> - represents the event of selecting an item usually in |
| * the context of an {@link android.widget.AdapterView}.</br> |
| * <em>Type:</em> {@link #TYPE_VIEW_SELECTED}</br> |
| * <em>Properties:</em></br> |
| * <ul> |
| * <li>{@link #getEventType()} - The type of the event.</li> |
| * <li>{@link #getSource()} - The source info (for registered clients).</li> |
| * <li>{@link #getClassName()} - The class name of the source.</li> |
| * <li>{@link #getPackageName()} - The package name of the source.</li> |
| * <li>{@link #getEventTime()} - The event time.</li> |
| * </ul> |
| * </p> |
| * <p> |
| * <b>View focused</b> - represents the event of focusing a |
| * {@link android.view.View}.</br> |
| * <em>Type:</em> {@link #TYPE_VIEW_FOCUSED}</br> |
| * <em>Properties:</em></br> |
| * <ul> |
| * <li>{@link #getEventType()} - The type of the event.</li> |
| * <li>{@link #getSource()} - The source info (for registered clients).</li> |
| * <li>{@link #getClassName()} - The class name of the source.</li> |
| * <li>{@link #getPackageName()} - The package name of the source.</li> |
| * <li>{@link #getEventTime()} - The event time.</li> |
| * </ul> |
| * </p> |
| * <p> |
| * <b>View text changed</b> - represents the event of changing the text of an |
| * {@link android.widget.EditText}.</br> |
| * <em>Type:</em> {@link #TYPE_VIEW_TEXT_CHANGED}</br> |
| * <em>Properties:</em></br> |
| * <ul> |
| * <li>{@link #getEventType()} - The type of the event.</li> |
| * <li>{@link #getSource()} - The source info (for registered clients).</li> |
| * <li>{@link #getClassName()} - The class name of the source.</li> |
| * <li>{@link #getPackageName()} - The package name of the source.</li> |
| * <li>{@link #getEventTime()} - The event time.</li> |
| * <li>{@link #getText()} - The new text of the source.</li> |
| * <li>{@link #getBeforeText()} - The text of the source before the change.</li> |
| * <li>{@link #getFromIndex()} - The text change start index.</li> |
| * <li>{@link #getAddedCount()} - The number of added characters.</li> |
| * <li>{@link #getRemovedCount()} - The number of removed characters.</li> |
| * </ul> |
| * </p> |
| * <p> |
| * <b>View text selection changed</b> - represents the event of changing the text |
| * selection of an {@link android.widget.EditText}.</br> |
| * <em>Type:</em> {@link #TYPE_VIEW_TEXT_SELECTION_CHANGED} </br> |
| * <em>Properties:</em></br> |
| * <ul> |
| * <li>{@link #getEventType()} - The type of the event.</li> |
| * <li>{@link #getSource()} - The source info (for registered clients).</li> |
| * <li>{@link #getClassName()} - The class name of the source.</li> |
| * <li>{@link #getPackageName()} - The package name of the source.</li> |
| * <li>{@link #getEventTime()} - The event time.</li> |
| * </ul> |
| * </p> |
| * <b>View text traversed at movement granularity</b> - represents the event of traversing the |
| * text of a view at a given granularity. For example, moving to the next word.</br> |
| * <em>Type:</em> {@link #TYPE_VIEW_TEXT_TRAVERSED_AT_MOVEMENT_GRANULARITY} </br> |
| * <em>Properties:</em></br> |
| * <ul> |
| * <li>{@link #getEventType()} - The type of the event.</li> |
| * <li>{@link #getSource()} - The source info (for registered clients).</li> |
| * <li>{@link #getClassName()} - The class name of the source.</li> |
| * <li>{@link #getPackageName()} - The package name of the source.</li> |
| * <li>{@link #getEventTime()} - The event time.</li> |
| * <li>{@link #getMovementGranularity()} - Sets the granularity at which a view's text |
| * was traversed.</li> |
| * <li>{@link #getText()} - The text of the source's sub-tree.</li> |
| * <li>{@link #getFromIndex()} - The start the text that was skipped over in this movement. |
| * This is the starting point when moving forward through the text, but not when moving |
| * back.</li> |
| * <li>{@link #getToIndex()} - The end of the text that was skipped over in this movement. |
| * This is the ending point when moving forward through the text, but not when moving |
| * back.</li> |
| * <li>{@link #getAction()} - Gets traversal action which specifies the direction.</li> |
| * </ul> |
| * </p> |
| * <p> |
| * <b>View scrolled</b> - represents the event of scrolling a view. </br> |
| * <em>Type:</em> {@link #TYPE_VIEW_SCROLLED}</br> |
| * <em>Properties:</em></br> |
| * <ul> |
| * <li>{@link #getEventType()} - The type of the event.</li> |
| * <li>{@link #getSource()} - The source info (for registered clients).</li> |
| * <li>{@link #getClassName()} - The class name of the source.</li> |
| * <li>{@link #getPackageName()} - The package name of the source.</li> |
| * <li>{@link #getEventTime()} - The event time.</li> |
| * <li>{@link #getScrollDeltaX()} - The difference in the horizontal position.</li> |
| * <li>{@link #getScrollDeltaY()} - The difference in the vertical position.</li> |
| * </ul> |
| * </p> |
| * <p> |
| * <b>TRANSITION TYPES</b></br> |
| * </p> |
| * <p> |
| * <b>Window state changed</b> - represents the event of a change to a section of |
| * the user interface that is visually distinct. Should be sent from either the |
| * root view of a window or from a view that is marked as a pane |
| * {@link android.view.View#setAccessibilityPaneTitle(CharSequence)}. Not that changes |
| * to true windows are represented by {@link #TYPE_WINDOWS_CHANGED}.</br> |
| * <em>Type:</em> {@link #TYPE_WINDOW_STATE_CHANGED}</br> |
| * <em>Properties:</em></br> |
| * <ul> |
| * <li>{@link #getEventType()} - The type of the event.</li> |
| * <li>{@link #getContentChangeTypes()} - The type of state changes.</li> |
| * <li>{@link #getSource()} - The source info (for registered clients).</li> |
| * <li>{@link #getClassName()} - The class name of the source.</li> |
| * <li>{@link #getPackageName()} - The package name of the source.</li> |
| * <li>{@link #getEventTime()} - The event time.</li> |
| * <li>{@link #getText()} - The text of the source's sub-tree, including the pane titles.</li> |
| * </ul> |
| * </p> |
| * <p> |
| * <b>Window content changed</b> - represents the event of change in the |
| * content of a window. This change can be adding/removing view, changing |
| * a view size, etc.</br> |
| * </p> |
| * <p> |
| * <em>Type:</em> {@link #TYPE_WINDOW_CONTENT_CHANGED}</br> |
| * <em>Properties:</em></br> |
| * <ul> |
| * <li>{@link #getEventType()} - The type of the event.</li> |
| * <li>{@link #getContentChangeTypes()} - The type of content changes.</li> |
| * <li>{@link #getSource()} - The source info (for registered clients).</li> |
| * <li>{@link #getClassName()} - The class name of the source.</li> |
| * <li>{@link #getPackageName()} - The package name of the source.</li> |
| * <li>{@link #getEventTime()} - The event time.</li> |
| * </ul> |
| * </p> |
| * <p> |
| * <b>Windows changed</b> - represents a change in the windows shown on |
| * the screen such as a window appeared, a window disappeared, a window size changed, |
| * a window layer changed, etc. These events should only come from the system, which is responsible |
| * for managing windows. The list of windows is available from |
| * {@link android.accessibilityservice.AccessibilityService#getWindows()}. |
| * For regions of the user interface that are presented as windows but are |
| * controlled by an app's process, use {@link #TYPE_WINDOW_STATE_CHANGED}.</br> |
| * <em>Type:</em> {@link #TYPE_WINDOWS_CHANGED}</br> |
| * <em>Properties:</em></br> |
| * <ul> |
| * <li>{@link #getEventType()} - The type of the event.</li> |
| * <li>{@link #getEventTime()} - The event time.</li> |
| * <li>{@link #getWindowChanges()}</li> - The specific change to the source window |
| * </ul> |
| * <em>Note:</em> You can retrieve the {@link AccessibilityWindowInfo} for the window |
| * source of the event by looking through the list returned by |
| * {@link android.accessibilityservice.AccessibilityService#getWindows()} for the window whose ID |
| * matches {@link #getWindowId()}. |
| * </p> |
| * <p> |
| * <b>NOTIFICATION TYPES</b></br> |
| * </p> |
| * <p> |
| * <b>Notification state changed</b> - represents the event showing a transient piece of information |
| * to the user. This information may be a {@link android.app.Notification} or |
| * {@link android.widget.Toast}.</br> |
| * <em>Type:</em> {@link #TYPE_NOTIFICATION_STATE_CHANGED}</br> |
| * <em>Properties:</em></br> |
| * <ul> |
| * <li>{@link #getEventType()} - The type of the event.</li> |
| * <li>{@link #getClassName()} - The class name of the source.</li> |
| * <li>{@link #getPackageName()} - The package name of the source.</li> |
| * <li>{@link #getEventTime()} - The event time.</li> |
| * <li>{@link #getParcelableData()} - The posted {@link android.app.Notification}, if |
| * applicable.</li> |
| * <li>{@link #getText()} - Displayed text of the {@link android.widget.Toast}, if applicable, |
| * or may contain text from the {@link android.app.Notification}, although |
| * {@link #getParcelableData()} is a richer set of data for {@link android.app.Notification}.</li> |
| * </ul> |
| * </p> |
| * <p> |
| * <b>EXPLORATION TYPES</b></br> |
| * </p> |
| * <p> |
| * <b>View hover enter</b> - represents the event of beginning to hover |
| * over a {@link android.view.View}. The hover may be generated via |
| * exploring the screen by touch or via a pointing device.</br> |
| * <em>Type:</em> {@link #TYPE_VIEW_HOVER_ENTER}</br> |
| * <em>Properties:</em></br> |
| * <ul> |
| * <li>{@link #getEventType()} - The type of the event.</li> |
| * <li>{@link #getSource()} - The source info (for registered clients).</li> |
| * <li>{@link #getClassName()} - The class name of the source.</li> |
| * <li>{@link #getPackageName()} - The package name of the source.</li> |
| * <li>{@link #getEventTime()} - The event time.</li> |
| * </ul> |
| * </p> |
| * <b>View hover exit</b> - represents the event of stopping to hover |
| * over a {@link android.view.View}. The hover may be generated via |
| * exploring the screen by touch or via a pointing device.</br> |
| * <em>Type:</em> {@link #TYPE_VIEW_HOVER_EXIT}</br> |
| * <em>Properties:</em></br> |
| * <ul> |
| * <li>{@link #getEventType()} - The type of the event.</li> |
| * <li>{@link #getSource()} - The source info (for registered clients).</li> |
| * <li>{@link #getClassName()} - The class name of the source.</li> |
| * <li>{@link #getPackageName()} - The package name of the source.</li> |
| * <li>{@link #getEventTime()} - The event time.</li> |
| * </ul> |
| * </p> |
| * <p> |
| * <b>Touch interaction start</b> - represents the event of starting a touch |
| * interaction, which is the user starts touching the screen.</br> |
| * <em>Type:</em> {@link #TYPE_TOUCH_INTERACTION_START}</br> |
| * <em>Properties:</em></br> |
| * <ul> |
| * <li>{@link #getEventType()} - The type of the event.</li> |
| * </ul> |
| * <em>Note:</em> This event is fired only by the system and is not passed to the |
| * view tree to be populated.</br> |
| * </p> |
| * <p> |
| * <b>Touch interaction end</b> - represents the event of ending a touch |
| * interaction, which is the user stops touching the screen.</br> |
| * <em>Type:</em> {@link #TYPE_TOUCH_INTERACTION_END}</br> |
| * <em>Properties:</em></br> |
| * <ul> |
| * <li>{@link #getEventType()} - The type of the event.</li> |
| * </ul> |
| * <em>Note:</em> This event is fired only by the system and is not passed to the |
| * view tree to be populated.</br> |
| * </p> |
| * <p> |
| * <b>Touch exploration gesture start</b> - represents the event of starting a touch |
| * exploring gesture.</br> |
| * <em>Type:</em> {@link #TYPE_TOUCH_EXPLORATION_GESTURE_START}</br> |
| * <em>Properties:</em></br> |
| * <ul> |
| * <li>{@link #getEventType()} - The type of the event.</li> |
| * </ul> |
| * <em>Note:</em> This event is fired only by the system and is not passed to the |
| * view tree to be populated.</br> |
| * </p> |
| * <p> |
| * <b>Touch exploration gesture end</b> - represents the event of ending a touch |
| * exploring gesture.</br> |
| * <em>Type:</em> {@link #TYPE_TOUCH_EXPLORATION_GESTURE_END}</br> |
| * <em>Properties:</em></br> |
| * <ul> |
| * <li>{@link #getEventType()} - The type of the event.</li> |
| * </ul> |
| * <em>Note:</em> This event is fired only by the system and is not passed to the |
| * view tree to be populated.</br> |
| * </p> |
| * <p> |
| * <b>Touch gesture detection start</b> - represents the event of starting a user |
| * gesture detection.</br> |
| * <em>Type:</em> {@link #TYPE_GESTURE_DETECTION_START}</br> |
| * <em>Properties:</em></br> |
| * <ul> |
| * <li>{@link #getEventType()} - The type of the event.</li> |
| * </ul> |
| * <em>Note:</em> This event is fired only by the system and is not passed to the |
| * view tree to be populated.</br> |
| * </p> |
| * <p> |
| * <b>Touch gesture detection end</b> - represents the event of ending a user |
| * gesture detection.</br> |
| * <em>Type:</em> {@link #TYPE_GESTURE_DETECTION_END}</br> |
| * <em>Properties:</em></br> |
| * <ul> |
| * <li>{@link #getEventType()} - The type of the event.</li> |
| * </ul> |
| * <em>Note:</em> This event is fired only by the system and is not passed to the |
| * view tree to be populated.</br> |
| * </p> |
| * <p> |
| * <b>MISCELLANEOUS TYPES</b></br> |
| * </p> |
| * <p> |
| * <b>Announcement</b> - represents the event of an application requesting a screen reader to make |
| * an announcement. Because the event carries no semantic meaning, this event is appropriate only |
| * in exceptional situations where additional screen reader output is needed but other types of |
| * accessibility services do not need to be aware of the change.</br> |
| * <em>Type:</em> {@link #TYPE_ANNOUNCEMENT}</br> |
| * <em>Properties:</em></br> |
| * <ul> |
| * <li>{@link #getEventType()} - The type of the event.</li> |
| * <li>{@link #getSource()} - The source info (for registered clients).</li> |
| * <li>{@link #getClassName()} - The class name of the source.</li> |
| * <li>{@link #getPackageName()} - The package name of the source.</li> |
| * <li>{@link #getEventTime()} - The event time.</li> |
| * <li>{@link #getText()} - The text of the announcement.</li> |
| * </ul> |
| * </p> |
| * |
| * @see android.view.accessibility.AccessibilityManager |
| * @see android.accessibilityservice.AccessibilityService |
| * @see AccessibilityNodeInfo |
| */ |
| public final class AccessibilityEvent extends AccessibilityRecord implements Parcelable { |
| private static final boolean DEBUG = false; |
| /** @hide */ |
| public static final boolean DEBUG_ORIGIN = false; |
| |
| /** |
| * Invalid selection/focus position. |
| * |
| * @see #getCurrentItemIndex() |
| */ |
| public static final int INVALID_POSITION = -1; |
| |
| /** |
| * Maximum length of the text fields. |
| * |
| * @see #getBeforeText() |
| * @see #getText() |
| * </br> |
| * Note: This constant is no longer needed since there |
| * is no limit on the length of text that is contained |
| * in an accessibility event anymore. |
| */ |
| @Deprecated |
| public static final int MAX_TEXT_LENGTH = 500; |
| |
| /** |
| * Represents the event of clicking on a {@link android.view.View} like |
| * {@link android.widget.Button}, {@link android.widget.CompoundButton}, etc. |
| */ |
| public static final int TYPE_VIEW_CLICKED = 0x00000001; |
| |
| /** |
| * Represents the event of long clicking on a {@link android.view.View} like |
| * {@link android.widget.Button}, {@link android.widget.CompoundButton}, etc. |
| */ |
| public static final int TYPE_VIEW_LONG_CLICKED = 0x00000002; |
| |
| /** |
| * Represents the event of selecting an item usually in the context of an |
| * {@link android.widget.AdapterView}. |
| */ |
| public static final int TYPE_VIEW_SELECTED = 0x00000004; |
| |
| /** |
| * Represents the event of setting input focus of a {@link android.view.View}. |
| */ |
| public static final int TYPE_VIEW_FOCUSED = 0x00000008; |
| |
| /** |
| * Represents the event of changing the text of an {@link android.widget.EditText}. |
| */ |
| public static final int TYPE_VIEW_TEXT_CHANGED = 0x00000010; |
| |
| /** |
| * Represents the event of a change to a visually distinct section of the user interface. |
| * These events should only be dispatched from {@link android.view.View}s that have |
| * accessibility pane titles, and replaces {@link #TYPE_WINDOW_CONTENT_CHANGED} for those |
| * sources. Details about the change are available from {@link #getContentChangeTypes()}. |
| */ |
| public static final int TYPE_WINDOW_STATE_CHANGED = 0x00000020; |
| |
| /** |
| * Represents the event showing a {@link android.app.Notification}. |
| */ |
| public static final int TYPE_NOTIFICATION_STATE_CHANGED = 0x00000040; |
| |
| /** |
| * Represents the event of a hover enter over a {@link android.view.View}. |
| */ |
| public static final int TYPE_VIEW_HOVER_ENTER = 0x00000080; |
| |
| /** |
| * Represents the event of a hover exit over a {@link android.view.View}. |
| */ |
| public static final int TYPE_VIEW_HOVER_EXIT = 0x00000100; |
| |
| /** |
| * Represents the event of starting a touch exploration gesture. |
| */ |
| public static final int TYPE_TOUCH_EXPLORATION_GESTURE_START = 0x00000200; |
| |
| /** |
| * Represents the event of ending a touch exploration gesture. |
| */ |
| public static final int TYPE_TOUCH_EXPLORATION_GESTURE_END = 0x00000400; |
| |
| /** |
| * Represents the event of changing the content of a window and more |
| * specifically the sub-tree rooted at the event's source. |
| */ |
| public static final int TYPE_WINDOW_CONTENT_CHANGED = 0x00000800; |
| |
| /** |
| * Represents the event of scrolling a view. This event type is generally not sent directly. |
| * @see View#onScrollChanged(int, int, int, int) |
| */ |
| public static final int TYPE_VIEW_SCROLLED = 0x00001000; |
| |
| /** |
| * Represents the event of changing the selection in an {@link android.widget.EditText}. |
| */ |
| public static final int TYPE_VIEW_TEXT_SELECTION_CHANGED = 0x00002000; |
| |
| /** |
| * Represents the event of an application making an announcement. |
| */ |
| public static final int TYPE_ANNOUNCEMENT = 0x00004000; |
| |
| /** |
| * Represents the event of gaining accessibility focus. |
| */ |
| public static final int TYPE_VIEW_ACCESSIBILITY_FOCUSED = 0x00008000; |
| |
| /** |
| * Represents the event of clearing accessibility focus. |
| */ |
| public static final int TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED = 0x00010000; |
| |
| /** |
| * Represents the event of traversing the text of a view at a given movement granularity. |
| */ |
| public static final int TYPE_VIEW_TEXT_TRAVERSED_AT_MOVEMENT_GRANULARITY = 0x00020000; |
| |
| /** |
| * Represents the event of beginning gesture detection. |
| */ |
| public static final int TYPE_GESTURE_DETECTION_START = 0x00040000; |
| |
| /** |
| * Represents the event of ending gesture detection. |
| */ |
| public static final int TYPE_GESTURE_DETECTION_END = 0x00080000; |
| |
| /** |
| * Represents the event of the user starting to touch the screen. |
| */ |
| public static final int TYPE_TOUCH_INTERACTION_START = 0x00100000; |
| |
| /** |
| * Represents the event of the user ending to touch the screen. |
| */ |
| public static final int TYPE_TOUCH_INTERACTION_END = 0x00200000; |
| |
| /** |
| * Represents the event change in the system windows shown on the screen. This event type should |
| * only be dispatched by the system. |
| */ |
| public static final int TYPE_WINDOWS_CHANGED = 0x00400000; |
| |
| /** |
| * Represents the event of a context click on a {@link android.view.View}. |
| */ |
| public static final int TYPE_VIEW_CONTEXT_CLICKED = 0x00800000; |
| |
| /** |
| * Represents the event of the assistant currently reading the users screen context. |
| */ |
| public static final int TYPE_ASSIST_READING_CONTEXT = 0x01000000; |
| |
| /** |
| * Change type for {@link #TYPE_WINDOW_CONTENT_CHANGED} event: |
| * The type of change is not defined. |
| */ |
| public static final int CONTENT_CHANGE_TYPE_UNDEFINED = 0x00000000; |
| |
| /** |
| * Change type for {@link #TYPE_WINDOW_CONTENT_CHANGED} event: |
| * One or more content changes occurred in the the subtree rooted at the source node, |
| * or the subtree's structure changed when a node was added or removed. |
| */ |
| public static final int CONTENT_CHANGE_TYPE_SUBTREE = 0x00000001; |
| |
| /** |
| * Change type for {@link #TYPE_WINDOW_CONTENT_CHANGED} event: |
| * The node's text changed. |
| */ |
| public static final int CONTENT_CHANGE_TYPE_TEXT = 0x00000002; |
| |
| /** |
| * Change type for {@link #TYPE_WINDOW_CONTENT_CHANGED} event: |
| * The node's content description changed. |
| */ |
| public static final int CONTENT_CHANGE_TYPE_CONTENT_DESCRIPTION = 0x00000004; |
| |
| /** |
| * Change type for {@link #TYPE_WINDOW_STATE_CHANGED} event: |
| * The node's pane title changed. |
| */ |
| public static final int CONTENT_CHANGE_TYPE_PANE_TITLE = 0x00000008; |
| |
| /** |
| * Change type for {@link #TYPE_WINDOW_STATE_CHANGED} event: |
| * The node has a pane title, and either just appeared or just was assigned a title when it |
| * had none before. |
| */ |
| public static final int CONTENT_CHANGE_TYPE_PANE_APPEARED = 0x00000010; |
| |
| /** |
| * Change type for {@link #TYPE_WINDOW_STATE_CHANGED} event: |
| * Can mean one of two slightly different things. The primary meaning is that the node has |
| * a pane title, and was removed from the node hierarchy. It will also be sent if the pane |
| * title is set to {@code null} after it contained a title. |
| * No source will be returned if the node is no longer on the screen. To make the change more |
| * clear for the user, the first entry in {@link #getText()} will return the value that would |
| * have been returned by {@code getSource().getPaneTitle()}. |
| */ |
| public static final int CONTENT_CHANGE_TYPE_PANE_DISAPPEARED = 0x00000020; |
| |
| /** |
| * Change type for {@link #TYPE_WINDOWS_CHANGED} event: |
| * The window was added. |
| */ |
| public static final int WINDOWS_CHANGE_ADDED = 0x00000001; |
| |
| /** |
| * Change type for {@link #TYPE_WINDOWS_CHANGED} event: |
| * A window was removed. |
| */ |
| public static final int WINDOWS_CHANGE_REMOVED = 0x00000002; |
| |
| /** |
| * Change type for {@link #TYPE_WINDOWS_CHANGED} event: |
| * The window's title changed. |
| */ |
| public static final int WINDOWS_CHANGE_TITLE = 0x00000004; |
| |
| /** |
| * Change type for {@link #TYPE_WINDOWS_CHANGED} event: |
| * The window's bounds changed. |
| */ |
| public static final int WINDOWS_CHANGE_BOUNDS = 0x00000008; |
| |
| /** |
| * Change type for {@link #TYPE_WINDOWS_CHANGED} event: |
| * The window's layer changed. |
| */ |
| public static final int WINDOWS_CHANGE_LAYER = 0x00000010; |
| |
| /** |
| * Change type for {@link #TYPE_WINDOWS_CHANGED} event: |
| * The window's {@link AccessibilityWindowInfo#isActive()} changed. |
| */ |
| public static final int WINDOWS_CHANGE_ACTIVE = 0x00000020; |
| |
| /** |
| * Change type for {@link #TYPE_WINDOWS_CHANGED} event: |
| * The window's {@link AccessibilityWindowInfo#isFocused()} changed. |
| */ |
| public static final int WINDOWS_CHANGE_FOCUSED = 0x00000040; |
| |
| /** |
| * Change type for {@link #TYPE_WINDOWS_CHANGED} event: |
| * The window's {@link AccessibilityWindowInfo#isAccessibilityFocused()} changed. |
| */ |
| public static final int WINDOWS_CHANGE_ACCESSIBILITY_FOCUSED = 0x00000080; |
| |
| /** |
| * Change type for {@link #TYPE_WINDOWS_CHANGED} event: |
| * The window's parent changed. |
| */ |
| public static final int WINDOWS_CHANGE_PARENT = 0x00000100; |
| |
| /** |
| * Change type for {@link #TYPE_WINDOWS_CHANGED} event: |
| * The window's children changed. |
| */ |
| public static final int WINDOWS_CHANGE_CHILDREN = 0x00000200; |
| |
| /** |
| * Change type for {@link #TYPE_WINDOWS_CHANGED} event: |
| * The window either entered or exited picture-in-picture mode. |
| */ |
| public static final int WINDOWS_CHANGE_PIP = 0x00000400; |
| |
| /** @hide */ |
| @Retention(RetentionPolicy.SOURCE) |
| @IntDef(flag = true, prefix = { "WINDOWS_CHANGE_" }, value = { |
| WINDOWS_CHANGE_ADDED, |
| WINDOWS_CHANGE_REMOVED, |
| WINDOWS_CHANGE_TITLE, |
| WINDOWS_CHANGE_BOUNDS, |
| WINDOWS_CHANGE_LAYER, |
| WINDOWS_CHANGE_ACTIVE, |
| WINDOWS_CHANGE_FOCUSED, |
| WINDOWS_CHANGE_ACCESSIBILITY_FOCUSED, |
| WINDOWS_CHANGE_PARENT, |
| WINDOWS_CHANGE_CHILDREN, |
| WINDOWS_CHANGE_PIP |
| }) |
| public @interface WindowsChangeTypes {} |
| |
| /** @hide */ |
| @Retention(RetentionPolicy.SOURCE) |
| @IntDef(flag = true, prefix = { "CONTENT_CHANGE_TYPE_" }, |
| value = { |
| CONTENT_CHANGE_TYPE_UNDEFINED, |
| CONTENT_CHANGE_TYPE_SUBTREE, |
| CONTENT_CHANGE_TYPE_TEXT, |
| CONTENT_CHANGE_TYPE_CONTENT_DESCRIPTION, |
| CONTENT_CHANGE_TYPE_PANE_TITLE |
| }) |
| public @interface ContentChangeTypes {} |
| |
| /** @hide */ |
| @IntDef(flag = true, prefix = { "TYPE_" }, value = { |
| TYPE_VIEW_CLICKED, |
| TYPE_VIEW_LONG_CLICKED, |
| TYPE_VIEW_SELECTED, |
| TYPE_VIEW_FOCUSED, |
| TYPE_VIEW_TEXT_CHANGED, |
| TYPE_WINDOW_STATE_CHANGED, |
| TYPE_NOTIFICATION_STATE_CHANGED, |
| TYPE_VIEW_HOVER_ENTER, |
| TYPE_VIEW_HOVER_EXIT, |
| TYPE_TOUCH_EXPLORATION_GESTURE_START, |
| TYPE_TOUCH_EXPLORATION_GESTURE_END, |
| TYPE_WINDOW_CONTENT_CHANGED, |
| TYPE_VIEW_SCROLLED, |
| TYPE_VIEW_TEXT_SELECTION_CHANGED, |
| TYPE_ANNOUNCEMENT, |
| TYPE_VIEW_ACCESSIBILITY_FOCUSED, |
| TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED, |
| TYPE_VIEW_TEXT_TRAVERSED_AT_MOVEMENT_GRANULARITY, |
| TYPE_GESTURE_DETECTION_START, |
| TYPE_GESTURE_DETECTION_END, |
| TYPE_TOUCH_INTERACTION_START, |
| TYPE_TOUCH_INTERACTION_END, |
| TYPE_WINDOWS_CHANGED, |
| TYPE_VIEW_CONTEXT_CLICKED, |
| TYPE_ASSIST_READING_CONTEXT |
| }) |
| @Retention(RetentionPolicy.SOURCE) |
| public @interface EventType {} |
| |
| /** |
| * Mask for {@link AccessibilityEvent} all types. |
| * |
| * @see #TYPE_VIEW_CLICKED |
| * @see #TYPE_VIEW_LONG_CLICKED |
| * @see #TYPE_VIEW_SELECTED |
| * @see #TYPE_VIEW_FOCUSED |
| * @see #TYPE_VIEW_TEXT_CHANGED |
| * @see #TYPE_WINDOW_STATE_CHANGED |
| * @see #TYPE_NOTIFICATION_STATE_CHANGED |
| * @see #TYPE_VIEW_HOVER_ENTER |
| * @see #TYPE_VIEW_HOVER_EXIT |
| * @see #TYPE_TOUCH_EXPLORATION_GESTURE_START |
| * @see #TYPE_TOUCH_EXPLORATION_GESTURE_END |
| * @see #TYPE_WINDOW_CONTENT_CHANGED |
| * @see #TYPE_VIEW_SCROLLED |
| * @see #TYPE_VIEW_TEXT_SELECTION_CHANGED |
| * @see #TYPE_ANNOUNCEMENT |
| * @see #TYPE_VIEW_TEXT_TRAVERSED_AT_MOVEMENT_GRANULARITY |
| * @see #TYPE_GESTURE_DETECTION_START |
| * @see #TYPE_GESTURE_DETECTION_END |
| * @see #TYPE_TOUCH_INTERACTION_START |
| * @see #TYPE_TOUCH_INTERACTION_END |
| * @see #TYPE_WINDOWS_CHANGED |
| * @see #TYPE_VIEW_CONTEXT_CLICKED |
| */ |
| public static final int TYPES_ALL_MASK = 0xFFFFFFFF; |
| |
| private static final int MAX_POOL_SIZE = 10; |
| private static final SynchronizedPool<AccessibilityEvent> sPool = |
| new SynchronizedPool<>(MAX_POOL_SIZE); |
| |
| private @EventType int mEventType; |
| private CharSequence mPackageName; |
| private long mEventTime; |
| int mMovementGranularity; |
| int mAction; |
| int mContentChangeTypes; |
| int mWindowChangeTypes; |
| |
| /** |
| * The stack trace describing where this event originated from on the app side. |
| * Only populated if {@link #DEBUG_ORIGIN} is enabled |
| * Can be inspected(e.g. printed) from an |
| * {@link android.accessibilityservice.AccessibilityService} to trace where particular events |
| * are being dispatched from. |
| * |
| * @hide |
| */ |
| public StackTraceElement[] originStackTrace = null; |
| |
| private ArrayList<AccessibilityRecord> mRecords; |
| |
| /* |
| * Hide constructor from clients. |
| */ |
| private AccessibilityEvent() { |
| } |
| |
| /** |
| * Initialize an event from another one. |
| * |
| * @param event The event to initialize from. |
| */ |
| void init(AccessibilityEvent event) { |
| super.init(event); |
| mEventType = event.mEventType; |
| mMovementGranularity = event.mMovementGranularity; |
| mAction = event.mAction; |
| mContentChangeTypes = event.mContentChangeTypes; |
| mWindowChangeTypes = event.mWindowChangeTypes; |
| mEventTime = event.mEventTime; |
| mPackageName = event.mPackageName; |
| if (DEBUG_ORIGIN) originStackTrace = event.originStackTrace; |
| } |
| |
| /** |
| * Sets if this instance is sealed. |
| * |
| * @param sealed Whether is sealed. |
| * |
| * @hide |
| */ |
| @Override |
| public void setSealed(boolean sealed) { |
| super.setSealed(sealed); |
| final List<AccessibilityRecord> records = mRecords; |
| if (records != null) { |
| final int recordCount = records.size(); |
| for (int i = 0; i < recordCount; i++) { |
| AccessibilityRecord record = records.get(i); |
| record.setSealed(sealed); |
| } |
| } |
| } |
| |
| /** |
| * Gets the number of records contained in the event. |
| * |
| * @return The number of records. |
| */ |
| public int getRecordCount() { |
| return mRecords == null ? 0 : mRecords.size(); |
| } |
| |
| /** |
| * Appends an {@link AccessibilityRecord} to the end of event records. |
| * |
| * @param record The record to append. |
| * |
| * @throws IllegalStateException If called from an AccessibilityService. |
| */ |
| public void appendRecord(AccessibilityRecord record) { |
| enforceNotSealed(); |
| if (mRecords == null) { |
| mRecords = new ArrayList<AccessibilityRecord>(); |
| } |
| mRecords.add(record); |
| } |
| |
| /** |
| * Gets the record at a given index. |
| * |
| * @param index The index. |
| * @return The record at the specified index. |
| */ |
| public AccessibilityRecord getRecord(int index) { |
| if (mRecords == null) { |
| throw new IndexOutOfBoundsException("Invalid index " + index + ", size is 0"); |
| } |
| return mRecords.get(index); |
| } |
| |
| /** |
| * Gets the event type. |
| * |
| * @return The event type. |
| */ |
| public @EventType int getEventType() { |
| return mEventType; |
| } |
| |
| /** |
| * Gets the bit mask of change types signaled by a |
| * {@link #TYPE_WINDOW_CONTENT_CHANGED} event or {@link #TYPE_WINDOW_STATE_CHANGED}. A single |
| * event may represent multiple change types. |
| * |
| * @return The bit mask of change types. One or more of: |
| * <ul> |
| * <li>{@link #CONTENT_CHANGE_TYPE_CONTENT_DESCRIPTION} |
| * <li>{@link #CONTENT_CHANGE_TYPE_SUBTREE} |
| * <li>{@link #CONTENT_CHANGE_TYPE_TEXT} |
| * <li>{@link #CONTENT_CHANGE_TYPE_PANE_TITLE} |
| * <li>{@link #CONTENT_CHANGE_TYPE_UNDEFINED} |
| * </ul> |
| */ |
| @ContentChangeTypes |
| public int getContentChangeTypes() { |
| return mContentChangeTypes; |
| } |
| |
| private static String contentChangeTypesToString(int types) { |
| return BitUtils.flagsToString(types, AccessibilityEvent::singleContentChangeTypeToString); |
| } |
| |
| private static String singleContentChangeTypeToString(int type) { |
| switch (type) { |
| case CONTENT_CHANGE_TYPE_CONTENT_DESCRIPTION: { |
| return "CONTENT_CHANGE_TYPE_CONTENT_DESCRIPTION"; |
| } |
| case CONTENT_CHANGE_TYPE_SUBTREE: return "CONTENT_CHANGE_TYPE_SUBTREE"; |
| case CONTENT_CHANGE_TYPE_TEXT: return "CONTENT_CHANGE_TYPE_TEXT"; |
| case CONTENT_CHANGE_TYPE_PANE_TITLE: return "CONTENT_CHANGE_TYPE_PANE_TITLE"; |
| case CONTENT_CHANGE_TYPE_UNDEFINED: return "CONTENT_CHANGE_TYPE_UNDEFINED"; |
| default: return Integer.toHexString(type); |
| } |
| } |
| |
| /** |
| * Sets the bit mask of node tree changes signaled by an |
| * {@link #TYPE_WINDOW_CONTENT_CHANGED} event. |
| * |
| * @param changeTypes The bit mask of change types. |
| * @throws IllegalStateException If called from an AccessibilityService. |
| * @see #getContentChangeTypes() |
| */ |
| public void setContentChangeTypes(@ContentChangeTypes int changeTypes) { |
| enforceNotSealed(); |
| mContentChangeTypes = changeTypes; |
| } |
| |
| /** |
| * Get the bit mask of change types signaled by a {@link #TYPE_WINDOWS_CHANGED} event. A |
| * single event may represent multiple change types. |
| * |
| * @return The bit mask of change types. |
| */ |
| @WindowsChangeTypes |
| public int getWindowChanges() { |
| return mWindowChangeTypes; |
| } |
| |
| /** @hide */ |
| public void setWindowChanges(@WindowsChangeTypes int changes) { |
| mWindowChangeTypes = changes; |
| } |
| |
| private static String windowChangeTypesToString(@WindowsChangeTypes int types) { |
| return BitUtils.flagsToString(types, AccessibilityEvent::singleWindowChangeTypeToString); |
| } |
| |
| private static String singleWindowChangeTypeToString(int type) { |
| switch (type) { |
| case WINDOWS_CHANGE_ADDED: return "WINDOWS_CHANGE_ADDED"; |
| case WINDOWS_CHANGE_REMOVED: return "WINDOWS_CHANGE_REMOVED"; |
| case WINDOWS_CHANGE_TITLE: return "WINDOWS_CHANGE_TITLE"; |
| case WINDOWS_CHANGE_BOUNDS: return "WINDOWS_CHANGE_BOUNDS"; |
| case WINDOWS_CHANGE_LAYER: return "WINDOWS_CHANGE_LAYER"; |
| case WINDOWS_CHANGE_ACTIVE: return "WINDOWS_CHANGE_ACTIVE"; |
| case WINDOWS_CHANGE_FOCUSED: return "WINDOWS_CHANGE_FOCUSED"; |
| case WINDOWS_CHANGE_ACCESSIBILITY_FOCUSED: |
| return "WINDOWS_CHANGE_ACCESSIBILITY_FOCUSED"; |
| case WINDOWS_CHANGE_PARENT: return "WINDOWS_CHANGE_PARENT"; |
| case WINDOWS_CHANGE_CHILDREN: return "WINDOWS_CHANGE_CHILDREN"; |
| default: return Integer.toHexString(type); |
| } |
| } |
| |
| /** |
| * Sets the event type. |
| * |
| * @param eventType The event type. |
| * |
| * @throws IllegalStateException If called from an AccessibilityService. |
| */ |
| public void setEventType(@EventType int eventType) { |
| enforceNotSealed(); |
| mEventType = eventType; |
| } |
| |
| /** |
| * Gets the time in which this event was sent. |
| * |
| * @return The event time. |
| */ |
| public long getEventTime() { |
| return mEventTime; |
| } |
| |
| /** |
| * Sets the time in which this event was sent. |
| * |
| * @param eventTime The event time. |
| * |
| * @throws IllegalStateException If called from an AccessibilityService. |
| */ |
| public void setEventTime(long eventTime) { |
| enforceNotSealed(); |
| mEventTime = eventTime; |
| } |
| |
| /** |
| * Gets the package name of the source. |
| * |
| * @return The package name. |
| */ |
| public CharSequence getPackageName() { |
| return mPackageName; |
| } |
| |
| /** |
| * Sets the package name of the source. |
| * |
| * @param packageName The package name. |
| * |
| * @throws IllegalStateException If called from an AccessibilityService. |
| */ |
| public void setPackageName(CharSequence packageName) { |
| enforceNotSealed(); |
| mPackageName = packageName; |
| } |
| |
| /** |
| * Sets the movement granularity that was traversed. |
| * |
| * @param granularity The granularity. |
| * |
| * @throws IllegalStateException If called from an AccessibilityService. |
| */ |
| public void setMovementGranularity(int granularity) { |
| enforceNotSealed(); |
| mMovementGranularity = granularity; |
| } |
| |
| /** |
| * Gets the movement granularity that was traversed. |
| * |
| * @return The granularity. |
| */ |
| public int getMovementGranularity() { |
| return mMovementGranularity; |
| } |
| |
| /** |
| * Sets the performed action that triggered this event. |
| * <p> |
| * Valid actions are defined in {@link AccessibilityNodeInfo}: |
| * <ul> |
| * <li>{@link AccessibilityNodeInfo#ACTION_ACCESSIBILITY_FOCUS} |
| * <li>{@link AccessibilityNodeInfo#ACTION_CLEAR_ACCESSIBILITY_FOCUS} |
| * <li>{@link AccessibilityNodeInfo#ACTION_CLEAR_FOCUS} |
| * <li>{@link AccessibilityNodeInfo#ACTION_CLEAR_SELECTION} |
| * <li>{@link AccessibilityNodeInfo#ACTION_CLICK} |
| * <li>etc. |
| * </ul> |
| * |
| * @param action The action. |
| * @throws IllegalStateException If called from an AccessibilityService. |
| * @see AccessibilityNodeInfo#performAction(int) |
| */ |
| public void setAction(int action) { |
| enforceNotSealed(); |
| mAction = action; |
| } |
| |
| /** |
| * Gets the performed action that triggered this event. |
| * |
| * @return The action. |
| */ |
| public int getAction() { |
| return mAction; |
| } |
| |
| /** |
| * Convenience method to obtain a {@link #TYPE_WINDOWS_CHANGED} event for a specific window and |
| * change set. |
| * |
| * @param windowId The ID of the window that changed |
| * @param windowChangeTypes The changes to populate |
| * @return An instance of a TYPE_WINDOWS_CHANGED, populated with the requested fields and with |
| * importantForAccessibility set to {@code true}. |
| * |
| * @hide |
| */ |
| public static AccessibilityEvent obtainWindowsChangedEvent( |
| int windowId, int windowChangeTypes) { |
| final AccessibilityEvent event = AccessibilityEvent.obtain(TYPE_WINDOWS_CHANGED); |
| event.setWindowId(windowId); |
| event.setWindowChanges(windowChangeTypes); |
| event.setImportantForAccessibility(true); |
| return event; |
| } |
| |
| /** |
| * Returns a cached instance if such is available or a new one is |
| * instantiated with its type property set. |
| * |
| * @param eventType The event type. |
| * @return An instance. |
| */ |
| public static AccessibilityEvent obtain(int eventType) { |
| AccessibilityEvent event = AccessibilityEvent.obtain(); |
| event.setEventType(eventType); |
| return event; |
| } |
| |
| /** |
| * Returns a cached instance if such is available or a new one is |
| * created. The returned instance is initialized from the given |
| * <code>event</code>. |
| * |
| * @param event The other event. |
| * @return An instance. |
| */ |
| public static AccessibilityEvent obtain(AccessibilityEvent event) { |
| AccessibilityEvent eventClone = AccessibilityEvent.obtain(); |
| eventClone.init(event); |
| |
| if (event.mRecords != null) { |
| final int recordCount = event.mRecords.size(); |
| eventClone.mRecords = new ArrayList<AccessibilityRecord>(recordCount); |
| for (int i = 0; i < recordCount; i++) { |
| final AccessibilityRecord record = event.mRecords.get(i); |
| final AccessibilityRecord recordClone = AccessibilityRecord.obtain(record); |
| eventClone.mRecords.add(recordClone); |
| } |
| } |
| |
| return eventClone; |
| } |
| |
| /** |
| * Returns a cached instance if such is available or a new one is |
| * instantiated. |
| * |
| * @return An instance. |
| */ |
| public static AccessibilityEvent obtain() { |
| AccessibilityEvent event = sPool.acquire(); |
| if (event == null) event = new AccessibilityEvent(); |
| if (DEBUG_ORIGIN) event.originStackTrace = Thread.currentThread().getStackTrace(); |
| return event; |
| } |
| |
| /** |
| * Recycles an instance back to be reused. |
| * <p> |
| * <b>Note: You must not touch the object after calling this function.</b> |
| * </p> |
| * |
| * @throws IllegalStateException If the event is already recycled. |
| */ |
| @Override |
| public void recycle() { |
| clear(); |
| sPool.release(this); |
| } |
| |
| /** |
| * Clears the state of this instance. |
| * |
| * @hide |
| */ |
| @Override |
| protected void clear() { |
| super.clear(); |
| mEventType = 0; |
| mMovementGranularity = 0; |
| mAction = 0; |
| mContentChangeTypes = 0; |
| mWindowChangeTypes = 0; |
| mPackageName = null; |
| mEventTime = 0; |
| if (mRecords != null) { |
| while (!mRecords.isEmpty()) { |
| AccessibilityRecord record = mRecords.remove(0); |
| record.recycle(); |
| } |
| } |
| if (DEBUG_ORIGIN) originStackTrace = null; |
| } |
| |
| /** |
| * Creates a new instance from a {@link Parcel}. |
| * |
| * @param parcel A parcel containing the state of a {@link AccessibilityEvent}. |
| */ |
| public void initFromParcel(Parcel parcel) { |
| mSealed = (parcel.readInt() == 1); |
| mEventType = parcel.readInt(); |
| mMovementGranularity = parcel.readInt(); |
| mAction = parcel.readInt(); |
| mContentChangeTypes = parcel.readInt(); |
| mWindowChangeTypes = parcel.readInt(); |
| mPackageName = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(parcel); |
| mEventTime = parcel.readLong(); |
| mConnectionId = parcel.readInt(); |
| readAccessibilityRecordFromParcel(this, parcel); |
| |
| // Read the records. |
| final int recordCount = parcel.readInt(); |
| if (recordCount > 0) { |
| mRecords = new ArrayList<>(recordCount); |
| for (int i = 0; i < recordCount; i++) { |
| AccessibilityRecord record = AccessibilityRecord.obtain(); |
| readAccessibilityRecordFromParcel(record, parcel); |
| record.mConnectionId = mConnectionId; |
| mRecords.add(record); |
| } |
| } |
| |
| if (DEBUG_ORIGIN) { |
| originStackTrace = new StackTraceElement[parcel.readInt()]; |
| for (int i = 0; i < originStackTrace.length; i++) { |
| originStackTrace[i] = new StackTraceElement( |
| parcel.readString(), |
| parcel.readString(), |
| parcel.readString(), |
| parcel.readInt()); |
| } |
| } |
| } |
| |
| /** |
| * Reads an {@link AccessibilityRecord} from a parcel. |
| * |
| * @param record The record to initialize. |
| * @param parcel The parcel to read from. |
| */ |
| private void readAccessibilityRecordFromParcel(AccessibilityRecord record, |
| Parcel parcel) { |
| record.mBooleanProperties = parcel.readInt(); |
| record.mCurrentItemIndex = parcel.readInt(); |
| record.mItemCount = parcel.readInt(); |
| record.mFromIndex = parcel.readInt(); |
| record.mToIndex = parcel.readInt(); |
| record.mScrollX = parcel.readInt(); |
| record.mScrollY = parcel.readInt(); |
| record.mScrollDeltaX = parcel.readInt(); |
| record.mScrollDeltaY = parcel.readInt(); |
| record.mMaxScrollX = parcel.readInt(); |
| record.mMaxScrollY = parcel.readInt(); |
| record.mAddedCount = parcel.readInt(); |
| record.mRemovedCount = parcel.readInt(); |
| record.mClassName = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(parcel); |
| record.mContentDescription = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(parcel); |
| record.mBeforeText = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(parcel); |
| record.mParcelableData = parcel.readParcelable(null); |
| parcel.readList(record.mText, null); |
| record.mSourceWindowId = parcel.readInt(); |
| record.mSourceNodeId = parcel.readLong(); |
| record.mSealed = (parcel.readInt() == 1); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void writeToParcel(Parcel parcel, int flags) { |
| parcel.writeInt(isSealed() ? 1 : 0); |
| parcel.writeInt(mEventType); |
| parcel.writeInt(mMovementGranularity); |
| parcel.writeInt(mAction); |
| parcel.writeInt(mContentChangeTypes); |
| parcel.writeInt(mWindowChangeTypes); |
| TextUtils.writeToParcel(mPackageName, parcel, 0); |
| parcel.writeLong(mEventTime); |
| parcel.writeInt(mConnectionId); |
| writeAccessibilityRecordToParcel(this, parcel, flags); |
| |
| // Write the records. |
| final int recordCount = getRecordCount(); |
| parcel.writeInt(recordCount); |
| for (int i = 0; i < recordCount; i++) { |
| AccessibilityRecord record = mRecords.get(i); |
| writeAccessibilityRecordToParcel(record, parcel, flags); |
| } |
| |
| if (DEBUG_ORIGIN) { |
| if (originStackTrace == null) originStackTrace = Thread.currentThread().getStackTrace(); |
| parcel.writeInt(originStackTrace.length); |
| for (StackTraceElement element : originStackTrace) { |
| parcel.writeString(element.getClassName()); |
| parcel.writeString(element.getMethodName()); |
| parcel.writeString(element.getFileName()); |
| parcel.writeInt(element.getLineNumber()); |
| } |
| } |
| } |
| |
| /** |
| * Writes an {@link AccessibilityRecord} to a parcel. |
| * |
| * @param record The record to write. |
| * @param parcel The parcel to which to write. |
| */ |
| private void writeAccessibilityRecordToParcel(AccessibilityRecord record, Parcel parcel, |
| int flags) { |
| parcel.writeInt(record.mBooleanProperties); |
| parcel.writeInt(record.mCurrentItemIndex); |
| parcel.writeInt(record.mItemCount); |
| parcel.writeInt(record.mFromIndex); |
| parcel.writeInt(record.mToIndex); |
| parcel.writeInt(record.mScrollX); |
| parcel.writeInt(record.mScrollY); |
| parcel.writeInt(record.mScrollDeltaX); |
| parcel.writeInt(record.mScrollDeltaY); |
| parcel.writeInt(record.mMaxScrollX); |
| parcel.writeInt(record.mMaxScrollY); |
| parcel.writeInt(record.mAddedCount); |
| parcel.writeInt(record.mRemovedCount); |
| TextUtils.writeToParcel(record.mClassName, parcel, flags); |
| TextUtils.writeToParcel(record.mContentDescription, parcel, flags); |
| TextUtils.writeToParcel(record.mBeforeText, parcel, flags); |
| parcel.writeParcelable(record.mParcelableData, flags); |
| parcel.writeList(record.mText); |
| parcel.writeInt(record.mSourceWindowId); |
| parcel.writeLong(record.mSourceNodeId); |
| parcel.writeInt(record.mSealed ? 1 : 0); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public int describeContents() { |
| return 0; |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder builder = new StringBuilder(); |
| builder.append("EventType: ").append(eventTypeToString(mEventType)); |
| builder.append("; EventTime: ").append(mEventTime); |
| builder.append("; PackageName: ").append(mPackageName); |
| if (!DEBUG_CONCISE_TOSTRING || mMovementGranularity != 0) { |
| builder.append("; MovementGranularity: ").append(mMovementGranularity); |
| } |
| if (!DEBUG_CONCISE_TOSTRING || mAction != 0) { |
| builder.append("; Action: ").append(mAction); |
| } |
| if (!DEBUG_CONCISE_TOSTRING || mContentChangeTypes != 0) { |
| builder.append("; ContentChangeTypes: ").append( |
| contentChangeTypesToString(mContentChangeTypes)); |
| } |
| if (!DEBUG_CONCISE_TOSTRING || mWindowChangeTypes != 0) { |
| builder.append("; WindowChangeTypes: ").append( |
| windowChangeTypesToString(mWindowChangeTypes)); |
| } |
| super.appendTo(builder); |
| if (DEBUG || DEBUG_CONCISE_TOSTRING) { |
| if (!DEBUG_CONCISE_TOSTRING) { |
| builder.append("\n"); |
| } |
| if (DEBUG) { |
| builder.append("; SourceWindowId: ").append(mSourceWindowId); |
| builder.append("; SourceNodeId: ").append(mSourceNodeId); |
| } |
| for (int i = 0; i < getRecordCount(); i++) { |
| builder.append(" Record ").append(i).append(":"); |
| getRecord(i).appendTo(builder).append("\n"); |
| } |
| } else { |
| builder.append("; recordCount: ").append(getRecordCount()); |
| } |
| return builder.toString(); |
| } |
| |
| /** |
| * Returns the string representation of an event type. For example, |
| * {@link #TYPE_VIEW_CLICKED} is represented by the string TYPE_VIEW_CLICKED. |
| * |
| * @param eventType The event type |
| * @return The string representation. |
| */ |
| public static String eventTypeToString(int eventType) { |
| if (eventType == TYPES_ALL_MASK) { |
| return "TYPES_ALL_MASK"; |
| } |
| StringBuilder builder = new StringBuilder(); |
| int eventTypeCount = 0; |
| while (eventType != 0) { |
| final int eventTypeFlag = 1 << Integer.numberOfTrailingZeros(eventType); |
| eventType &= ~eventTypeFlag; |
| |
| if (eventTypeCount > 0) { |
| builder.append(", "); |
| } |
| builder.append(singleEventTypeToString(eventTypeFlag)); |
| |
| eventTypeCount++; |
| } |
| if (eventTypeCount > 1) { |
| builder.insert(0, '['); |
| builder.append(']'); |
| } |
| return builder.toString(); |
| } |
| |
| private static String singleEventTypeToString(int eventType) { |
| switch (eventType) { |
| case TYPE_VIEW_CLICKED: return "TYPE_VIEW_CLICKED"; |
| case TYPE_VIEW_LONG_CLICKED: return "TYPE_VIEW_LONG_CLICKED"; |
| case TYPE_VIEW_SELECTED: return "TYPE_VIEW_SELECTED"; |
| case TYPE_VIEW_FOCUSED: return "TYPE_VIEW_FOCUSED"; |
| case TYPE_VIEW_TEXT_CHANGED: return "TYPE_VIEW_TEXT_CHANGED"; |
| case TYPE_WINDOW_STATE_CHANGED: return "TYPE_WINDOW_STATE_CHANGED"; |
| case TYPE_VIEW_HOVER_ENTER: return "TYPE_VIEW_HOVER_ENTER"; |
| case TYPE_VIEW_HOVER_EXIT: return "TYPE_VIEW_HOVER_EXIT"; |
| case TYPE_NOTIFICATION_STATE_CHANGED: return "TYPE_NOTIFICATION_STATE_CHANGED"; |
| case TYPE_TOUCH_EXPLORATION_GESTURE_START: { |
| return "TYPE_TOUCH_EXPLORATION_GESTURE_START"; |
| } |
| case TYPE_TOUCH_EXPLORATION_GESTURE_END: return "TYPE_TOUCH_EXPLORATION_GESTURE_END"; |
| case TYPE_WINDOW_CONTENT_CHANGED: return "TYPE_WINDOW_CONTENT_CHANGED"; |
| case TYPE_VIEW_TEXT_SELECTION_CHANGED: return "TYPE_VIEW_TEXT_SELECTION_CHANGED"; |
| case TYPE_VIEW_SCROLLED: return "TYPE_VIEW_SCROLLED"; |
| case TYPE_ANNOUNCEMENT: return "TYPE_ANNOUNCEMENT"; |
| case TYPE_VIEW_ACCESSIBILITY_FOCUSED: return "TYPE_VIEW_ACCESSIBILITY_FOCUSED"; |
| case TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { |
| return "TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED"; |
| } |
| case TYPE_VIEW_TEXT_TRAVERSED_AT_MOVEMENT_GRANULARITY: { |
| return "TYPE_VIEW_TEXT_TRAVERSED_AT_MOVEMENT_GRANULARITY"; |
| } |
| case TYPE_GESTURE_DETECTION_START: return "TYPE_GESTURE_DETECTION_START"; |
| case TYPE_GESTURE_DETECTION_END: return "TYPE_GESTURE_DETECTION_END"; |
| case TYPE_TOUCH_INTERACTION_START: return "TYPE_TOUCH_INTERACTION_START"; |
| case TYPE_TOUCH_INTERACTION_END: return "TYPE_TOUCH_INTERACTION_END"; |
| case TYPE_WINDOWS_CHANGED: return "TYPE_WINDOWS_CHANGED"; |
| case TYPE_VIEW_CONTEXT_CLICKED: return "TYPE_VIEW_CONTEXT_CLICKED"; |
| case TYPE_ASSIST_READING_CONTEXT: return "TYPE_ASSIST_READING_CONTEXT"; |
| default: return Integer.toHexString(eventType); |
| } |
| } |
| |
| /** |
| * @see Parcelable.Creator |
| */ |
| public static final Parcelable.Creator<AccessibilityEvent> CREATOR = |
| new Parcelable.Creator<AccessibilityEvent>() { |
| public AccessibilityEvent createFromParcel(Parcel parcel) { |
| AccessibilityEvent event = AccessibilityEvent.obtain(); |
| event.initFromParcel(parcel); |
| return event; |
| } |
| |
| public AccessibilityEvent[] newArray(int size) { |
| return new AccessibilityEvent[size]; |
| } |
| }; |
| } |
