1393 lines
52 KiB
Java
1393 lines
52 KiB
Java
/**
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* Copyright (c) 2010, The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.content;
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import static android.content.ContentProvider.maybeAddUserId;
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import static android.content.ContentResolver.SCHEME_ANDROID_RESOURCE;
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import static android.content.ContentResolver.SCHEME_CONTENT;
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import static android.content.ContentResolver.SCHEME_FILE;
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import static com.android.window.flags.Flags.FLAG_DELEGATE_UNHANDLED_DRAGS;
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import android.annotation.FlaggedApi;
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import android.annotation.NonNull;
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import android.annotation.Nullable;
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import android.compat.annotation.UnsupportedAppUsage;
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import android.content.pm.ActivityInfo;
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import android.content.res.AssetFileDescriptor;
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import android.graphics.Bitmap;
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import android.net.Uri;
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import android.os.Build;
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import android.os.Parcel;
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import android.os.Parcelable;
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import android.os.StrictMode;
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import android.text.Html;
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import android.text.Spannable;
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import android.text.SpannableStringBuilder;
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import android.text.Spanned;
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import android.text.TextUtils;
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import android.text.style.URLSpan;
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import android.util.Log;
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import android.util.proto.ProtoOutputStream;
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import android.view.textclassifier.TextLinks;
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import com.android.internal.util.ArrayUtils;
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import libcore.io.IoUtils;
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import java.io.FileInputStream;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* Representation of a clipped data on the clipboard.
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*
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* <p>ClipData is a complex type containing one or more Item instances,
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* each of which can hold one or more representations of an item of data.
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* For display to the user, it also has a label.</p>
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*
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* <p>A ClipData contains a {@link ClipDescription}, which describes
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* important meta-data about the clip. In particular, its
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* {@link ClipDescription#getMimeType(int) getDescription().getMimeType(int)}
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* must return correct MIME type(s) describing the data in the clip. For help
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* in correctly constructing a clip with the correct MIME type, use
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* {@link #newPlainText(CharSequence, CharSequence)},
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* {@link #newUri(ContentResolver, CharSequence, Uri)}, and
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* {@link #newIntent(CharSequence, Intent)}.
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*
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* <p>Each Item instance can be one of three main classes of data: a simple
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* CharSequence of text, a single Intent object, or a Uri. See {@link Item}
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* for more details.
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*
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* <div class="special reference">
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* <h3>Developer Guides</h3>
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* <p>For more information about using the clipboard framework, read the
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* <a href="{@docRoot}guide/topics/clipboard/copy-paste.html">Copy and Paste</a>
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* developer guide.</p>
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* </div>
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*
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* <a name="ImplementingPaste"></a>
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* <h3>Implementing Paste or Drop</h3>
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*
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* <p>To implement a paste or drop of a ClipData object into an application,
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* the application must correctly interpret the data for its use. If the {@link Item}
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* it contains is simple text or an Intent, there is little to be done: text
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* can only be interpreted as text, and an Intent will typically be used for
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* creating shortcuts (such as placing icons on the home screen) or other
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* actions.
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*
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* <p>If all you want is the textual representation of the clipped data, you
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* can use the convenience method {@link Item#coerceToText Item.coerceToText}.
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* In this case there is generally no need to worry about the MIME types
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* reported by {@link ClipDescription#getMimeType(int) getDescription().getMimeType(int)},
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* since any clip item can always be converted to a string.
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*
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* <p>More complicated exchanges will be done through URIs, in particular
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* "content:" URIs. A content URI allows the recipient of a ClipData item
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* to interact closely with the ContentProvider holding the data in order to
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* negotiate the transfer of that data. The clip must also be filled in with
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* the available MIME types; {@link #newUri(ContentResolver, CharSequence, Uri)}
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* will take care of correctly doing this.
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*
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* <p>For example, here is the paste function of a simple NotePad application.
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* When retrieving the data from the clipboard, it can do either two things:
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* if the clipboard contains a URI reference to an existing note, it copies
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* the entire structure of the note into a new note; otherwise, it simply
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* coerces the clip into text and uses that as the new note's contents.
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*
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* {@sample development/samples/NotePad/src/com/example/android/notepad/NoteEditor.java
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* paste}
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*
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* <p>In many cases an application can paste various types of streams of data. For
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* example, an e-mail application may want to allow the user to paste an image
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* or other binary data as an attachment. This is accomplished through the
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* ContentResolver {@link ContentResolver#getStreamTypes(Uri, String)} and
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* {@link ContentResolver#openTypedAssetFileDescriptor(Uri, String, android.os.Bundle)}
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* methods. These allow a client to discover the type(s) of data that a particular
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* content URI can make available as a stream and retrieve the stream of data.
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*
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* <p>For example, the implementation of {@link Item#coerceToText Item.coerceToText}
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* itself uses this to try to retrieve a URI clip as a stream of text:
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*
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* {@sample frameworks/base/core/java/android/content/ClipData.java coerceToText}
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*
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* <a name="ImplementingCopy"></a>
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* <h3>Implementing Copy or Drag</h3>
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*
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* <p>To be the source of a clip, the application must construct a ClipData
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* object that any recipient can interpret best for their context. If the clip
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* is to contain a simple text, Intent, or URI, this is easy: an {@link Item}
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* containing the appropriate data type can be constructed and used.
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*
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* <p>More complicated data types require the implementation of support in
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* a ContentProvider for describing and generating the data for the recipient.
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* A common scenario is one where an application places on the clipboard the
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* content: URI of an object that the user has copied, with the data at that
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* URI consisting of a complicated structure that only other applications with
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* direct knowledge of the structure can use.
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*
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* <p>For applications that do not have intrinsic knowledge of the data structure,
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* the content provider holding it can make the data available as an arbitrary
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* number of types of data streams. This is done by implementing the
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* ContentProvider {@link ContentProvider#getStreamTypes(Uri, String)} and
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* {@link ContentProvider#openTypedAssetFile(Uri, String, android.os.Bundle)}
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* methods.
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*
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* <p>Going back to our simple NotePad application, this is the implementation
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* it may have to convert a single note URI (consisting of a title and the note
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* text) into a stream of plain text data.
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*
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* {@sample development/samples/NotePad/src/com/example/android/notepad/NotePadProvider.java
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* stream}
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*
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* <p>The copy operation in our NotePad application is now just a simple matter
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* of making a clip containing the URI of the note being copied:
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*
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* {@sample development/samples/NotePad/src/com/example/android/notepad/NotesList.java
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* copy}
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*
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* <p>Note if a paste operation needs this clip as text (for example to paste
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* into an editor), then {@link Item#coerceToText(Context)} will ask the content
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* provider for the clip URI as text and successfully paste the entire note.
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*/
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@android.ravenwood.annotation.RavenwoodKeepWholeClass
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public class ClipData implements Parcelable {
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private static final String TAG = "ClipData";
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static final String[] MIMETYPES_TEXT_PLAIN = new String[] {
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ClipDescription.MIMETYPE_TEXT_PLAIN };
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static final String[] MIMETYPES_TEXT_HTML = new String[] {
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ClipDescription.MIMETYPE_TEXT_HTML };
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static final String[] MIMETYPES_TEXT_URILIST = new String[] {
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ClipDescription.MIMETYPE_TEXT_URILIST };
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static final String[] MIMETYPES_TEXT_INTENT = new String[] {
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ClipDescription.MIMETYPE_TEXT_INTENT };
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final ClipDescription mClipDescription;
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final Bitmap mIcon;
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final ArrayList<Item> mItems;
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// This is false by default unless the ClipData is obtained via
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// {@link #copyForTransferWithActivityInfo}.
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private boolean mParcelItemActivityInfos;
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/**
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* Description of a single item in a ClipData.
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*
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* <p>The types than an individual item can currently contain are:</p>
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*
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* <ul>
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* <li> Text: a basic string of text. This is actually a CharSequence,
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* so it can be formatted text supported by corresponding Android built-in
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* style spans. (Custom application spans are not supported and will be
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* stripped when transporting through the clipboard.)
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* <li> Intent: an arbitrary Intent object. A typical use is the shortcut
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* to create when pasting a clipped item on to the home screen.
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* <li> Uri: a URI reference. This may be any URI (such as an http: URI
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* representing a bookmark), however it is often a content: URI. Using
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* content provider references as clips like this allows an application to
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* share complex or large clips through the standard content provider
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* facilities.
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* </ul>
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*/
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public static class Item {
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final CharSequence mText;
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final String mHtmlText;
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final Intent mIntent;
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final IntentSender mIntentSender;
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@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
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Uri mUri;
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private TextLinks mTextLinks;
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// Additional activity info resolved by the system. This is only parceled with the ClipData
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// if the data is obtained from {@link #copyForTransferWithActivityInfo}
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private ActivityInfo mActivityInfo;
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/**
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* A builder for a ClipData Item.
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*/
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@FlaggedApi(FLAG_DELEGATE_UNHANDLED_DRAGS)
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public static final class Builder {
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private CharSequence mText;
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private String mHtmlText;
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private Intent mIntent;
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private IntentSender mIntentSender;
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private Uri mUri;
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/**
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* Sets the text for the item to be constructed.
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*/
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@FlaggedApi(FLAG_DELEGATE_UNHANDLED_DRAGS)
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@NonNull
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public Builder setText(@Nullable CharSequence text) {
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mText = text;
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return this;
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}
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/**
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* Sets the HTML text for the item to be constructed.
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*/
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@FlaggedApi(FLAG_DELEGATE_UNHANDLED_DRAGS)
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@NonNull
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public Builder setHtmlText(@Nullable String htmlText) {
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mHtmlText = htmlText;
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return this;
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}
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/**
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* Sets the Intent for the item to be constructed.
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*/
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@FlaggedApi(FLAG_DELEGATE_UNHANDLED_DRAGS)
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@NonNull
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public Builder setIntent(@Nullable Intent intent) {
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mIntent = intent;
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return this;
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}
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/**
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* Sets the {@link IntentSender} for the item to be constructed. To prevent receiving
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* apps from improperly manipulating the intent to launch another activity as this
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* caller, the provided IntentSender must be immutable.
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*
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* If there is a fixed lifetime for this ClipData (ie. for drag and drop), the system
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* will cancel the IntentSender when it is no longer used.
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*/
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@FlaggedApi(FLAG_DELEGATE_UNHANDLED_DRAGS)
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@NonNull
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public Builder setIntentSender(@Nullable IntentSender intentSender) {
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if (intentSender != null && !intentSender.isImmutable()) {
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throw new IllegalArgumentException("Expected intent sender to be immutable");
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}
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mIntentSender = intentSender;
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return this;
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}
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/**
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* Sets the URI for the item to be constructed.
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*/
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@FlaggedApi(FLAG_DELEGATE_UNHANDLED_DRAGS)
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@NonNull
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public Builder setUri(@Nullable Uri uri) {
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mUri = uri;
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return this;
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}
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/**
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* Constructs a new Item with the properties set on this builder.
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*/
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@FlaggedApi(FLAG_DELEGATE_UNHANDLED_DRAGS)
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@NonNull
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public Item build() {
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return new Item(mText, mHtmlText, mIntent, mIntentSender, mUri);
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}
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}
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/** @hide */
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public Item(Item other) {
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mText = other.mText;
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mHtmlText = other.mHtmlText;
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mIntent = other.mIntent;
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mIntentSender = other.mIntentSender;
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mUri = other.mUri;
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mActivityInfo = other.mActivityInfo;
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mTextLinks = other.mTextLinks;
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}
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/**
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* Create an Item consisting of a single block of (possibly styled) text.
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*/
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public Item(CharSequence text) {
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this(text, null, null, null, null);
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}
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/**
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* Create an Item consisting of a single block of (possibly styled) text,
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* with an alternative HTML formatted representation. You <em>must</em>
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* supply a plain text representation in addition to HTML text; coercion
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* will not be done from HTML formatted text into plain text.
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* <p><strong>Warning:</strong> Use content: URI for sharing large clip data.
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* ClipData.Item doesn't accept an HTML text if it's larger than 800KB.
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* </p>
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*/
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public Item(CharSequence text, String htmlText) {
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this(text, htmlText, null, null, null);
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}
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/**
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* Create an Item consisting of an arbitrary Intent.
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*/
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public Item(Intent intent) {
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this(null, null, intent, null, null);
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}
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/**
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* Create an Item consisting of an arbitrary URI.
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*/
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public Item(Uri uri) {
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this(null, null, null, null, uri);
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}
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/**
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* Create a complex Item, containing multiple representations of
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* text, Intent, and/or URI.
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*/
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public Item(CharSequence text, Intent intent, Uri uri) {
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this(text, null, intent, null, uri);
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}
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/**
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* Create a complex Item, containing multiple representations of
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* text, HTML text, Intent, and/or URI. If providing HTML text, you
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* <em>must</em> supply a plain text representation as well; coercion
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* will not be done from HTML formatted text into plain text.
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*/
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public Item(CharSequence text, String htmlText, Intent intent, Uri uri) {
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this(text, htmlText, intent, null, uri);
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}
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/**
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* Builder ctor.
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*/
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private Item(CharSequence text, String htmlText, Intent intent, IntentSender intentSender,
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Uri uri) {
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if (htmlText != null && text == null) {
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throw new IllegalArgumentException(
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"Plain text must be supplied if HTML text is supplied");
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}
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mText = text;
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mHtmlText = htmlText;
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mIntent = intent;
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mIntentSender = intentSender;
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mUri = uri;
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}
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/**
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* Retrieve the raw text contained in this Item.
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*/
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public CharSequence getText() {
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return mText;
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}
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/**
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* Retrieve the raw HTML text contained in this Item.
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*/
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public String getHtmlText() {
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return mHtmlText;
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}
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/**
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* Retrieve the raw Intent contained in this Item.
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*/
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public Intent getIntent() {
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return mIntent;
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}
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/**
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* Returns the {@link IntentSender} in this Item.
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*/
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@FlaggedApi(FLAG_DELEGATE_UNHANDLED_DRAGS)
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@Nullable
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public IntentSender getIntentSender() {
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return mIntentSender;
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}
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/**
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* Retrieve the raw URI contained in this Item.
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*/
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public Uri getUri() {
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return mUri;
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}
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/**
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* Retrieve the activity info contained in this Item.
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* @hide
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*/
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public ActivityInfo getActivityInfo() {
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return mActivityInfo;
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}
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/**
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* Updates the activity info for in this Item.
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* @hide
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*/
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public void setActivityInfo(ActivityInfo info) {
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mActivityInfo = info;
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}
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/**
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* Returns the results of text classification run on the raw text contained in this item,
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* if it was performed, and if any entities were found in the text. Classification is
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* generally only performed on the first item in clip data, and only if the text is below a
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* certain length.
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*
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* <p>Returns {@code null} if classification was not performed, or if no entities were
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* found in the text.
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*
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* @see ClipDescription#getConfidenceScore(String)
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*/
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@Nullable
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public TextLinks getTextLinks() {
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return mTextLinks;
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}
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/**
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* @hide
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*/
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public void setTextLinks(TextLinks textLinks) {
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mTextLinks = textLinks;
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}
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/**
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* Turn this item into text, regardless of the type of data it
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* actually contains.
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*
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* <p>The algorithm for deciding what text to return is:
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* <ul>
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* <li> If {@link #getText} is non-null, return that.
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* <li> If {@link #getUri} is non-null, try to retrieve its data
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* as a text stream from its content provider. If this succeeds, copy
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* the text into a String and return it. If it is not a content: URI or
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* the content provider does not supply a text representation, return
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* the raw URI as a string.
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* <li> If {@link #getIntent} is non-null, convert that to an intent:
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* URI and return it.
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* <li> Otherwise, return an empty string.
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* </ul>
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*
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* @param context The caller's Context, from which its ContentResolver
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* and other things can be retrieved.
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* @return Returns the item's textual representation.
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*/
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//BEGIN_INCLUDE(coerceToText)
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public CharSequence coerceToText(Context context) {
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// If this Item has an explicit textual value, simply return that.
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CharSequence text = getText();
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if (text != null) {
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return text;
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}
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// Gracefully handle cases where resolver isn't available
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ContentResolver resolver = null;
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try {
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resolver = context.getContentResolver();
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} catch (Exception e) {
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Log.w(TAG, "Failed to obtain ContentResolver: " + e);
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}
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// If this Item has a URI value, try using that.
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Uri uri = getUri();
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if (uri != null && resolver != null) {
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// First see if the URI can be opened as a plain text stream
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// (of any sub-type). If so, this is the best textual
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// representation for it.
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AssetFileDescriptor descr = null;
|
|
FileInputStream stream = null;
|
|
InputStreamReader reader = null;
|
|
try {
|
|
try {
|
|
// Ask for a stream of the desired type.
|
|
descr = resolver.openTypedAssetFileDescriptor(uri, "text/*", null);
|
|
} catch (SecurityException e) {
|
|
Log.w(TAG, "Failure opening stream", e);
|
|
} catch (FileNotFoundException|RuntimeException e) {
|
|
// Unable to open content URI as text... not really an
|
|
// error, just something to ignore.
|
|
}
|
|
if (descr != null) {
|
|
try {
|
|
stream = descr.createInputStream();
|
|
reader = new InputStreamReader(stream, "UTF-8");
|
|
|
|
// Got it... copy the stream into a local string and return it.
|
|
final StringBuilder builder = new StringBuilder(128);
|
|
char[] buffer = new char[8192];
|
|
int len;
|
|
while ((len=reader.read(buffer)) > 0) {
|
|
builder.append(buffer, 0, len);
|
|
}
|
|
return builder.toString();
|
|
} catch (IOException e) {
|
|
// Something bad has happened.
|
|
Log.w(TAG, "Failure loading text", e);
|
|
return e.toString();
|
|
}
|
|
}
|
|
} finally {
|
|
IoUtils.closeQuietly(descr);
|
|
IoUtils.closeQuietly(stream);
|
|
IoUtils.closeQuietly(reader);
|
|
}
|
|
}
|
|
if (uri != null) {
|
|
// If we couldn't open the URI as a stream, use the URI itself as a textual
|
|
// representation (but not for "content", "android.resource" or "file" schemes).
|
|
final String scheme = uri.getScheme();
|
|
if (SCHEME_CONTENT.equals(scheme)
|
|
|| SCHEME_ANDROID_RESOURCE.equals(scheme)
|
|
|| SCHEME_FILE.equals(scheme)) {
|
|
return "";
|
|
}
|
|
return uri.toString();
|
|
}
|
|
|
|
// Finally, if all we have is an Intent, then we can just turn that
|
|
// into text. Not the most user-friendly thing, but it's something.
|
|
Intent intent = getIntent();
|
|
if (intent != null) {
|
|
return intent.toUri(Intent.URI_INTENT_SCHEME);
|
|
}
|
|
|
|
// Shouldn't get here, but just in case...
|
|
return "";
|
|
}
|
|
//END_INCLUDE(coerceToText)
|
|
|
|
/**
|
|
* Like {@link #coerceToHtmlText(Context)}, but any text that would
|
|
* be returned as HTML formatting will be returned as text with
|
|
* style spans.
|
|
* @param context The caller's Context, from which its ContentResolver
|
|
* and other things can be retrieved.
|
|
* @return Returns the item's textual representation.
|
|
*/
|
|
@android.ravenwood.annotation.RavenwoodThrow
|
|
public CharSequence coerceToStyledText(Context context) {
|
|
CharSequence text = getText();
|
|
if (text instanceof Spanned) {
|
|
return text;
|
|
}
|
|
String htmlText = getHtmlText();
|
|
if (htmlText != null) {
|
|
try {
|
|
CharSequence newText = Html.fromHtml(htmlText);
|
|
if (newText != null) {
|
|
return newText;
|
|
}
|
|
} catch (RuntimeException e) {
|
|
// If anything bad happens, we'll fall back on the plain text.
|
|
}
|
|
}
|
|
|
|
if (text != null) {
|
|
return text;
|
|
}
|
|
return coerceToHtmlOrStyledText(context, true);
|
|
}
|
|
|
|
/**
|
|
* Turn this item into HTML text, regardless of the type of data it
|
|
* actually contains.
|
|
*
|
|
* <p>The algorithm for deciding what text to return is:
|
|
* <ul>
|
|
* <li> If {@link #getHtmlText} is non-null, return that.
|
|
* <li> If {@link #getText} is non-null, return that, converting to
|
|
* valid HTML text. If this text contains style spans,
|
|
* {@link Html#toHtml(Spanned) Html.toHtml(Spanned)} is used to
|
|
* convert them to HTML formatting.
|
|
* <li> If {@link #getUri} is non-null, try to retrieve its data
|
|
* as a text stream from its content provider. If the provider can
|
|
* supply text/html data, that will be preferred and returned as-is.
|
|
* Otherwise, any text/* data will be returned and escaped to HTML.
|
|
* If it is not a content: URI or the content provider does not supply
|
|
* a text representation, HTML text containing a link to the URI
|
|
* will be returned.
|
|
* <li> If {@link #getIntent} is non-null, convert that to an intent:
|
|
* URI and return as an HTML link.
|
|
* <li> Otherwise, return an empty string.
|
|
* </ul>
|
|
*
|
|
* @param context The caller's Context, from which its ContentResolver
|
|
* and other things can be retrieved.
|
|
* @return Returns the item's representation as HTML text.
|
|
*/
|
|
@android.ravenwood.annotation.RavenwoodThrow
|
|
public String coerceToHtmlText(Context context) {
|
|
// If the item has an explicit HTML value, simply return that.
|
|
String htmlText = getHtmlText();
|
|
if (htmlText != null) {
|
|
return htmlText;
|
|
}
|
|
|
|
// If this Item has a plain text value, return it as HTML.
|
|
CharSequence text = getText();
|
|
if (text != null) {
|
|
if (text instanceof Spanned) {
|
|
return Html.toHtml((Spanned)text);
|
|
}
|
|
return Html.escapeHtml(text);
|
|
}
|
|
|
|
text = coerceToHtmlOrStyledText(context, false);
|
|
return text != null ? text.toString() : null;
|
|
}
|
|
|
|
@android.ravenwood.annotation.RavenwoodThrow
|
|
private CharSequence coerceToHtmlOrStyledText(Context context, boolean styled) {
|
|
// If this Item has a URI value, try using that.
|
|
if (mUri != null) {
|
|
|
|
// Check to see what data representations the content
|
|
// provider supports. We would like HTML text, but if that
|
|
// is not possible we'll live with plan text.
|
|
String[] types = null;
|
|
try {
|
|
types = context.getContentResolver().getStreamTypes(mUri, "text/*");
|
|
} catch (SecurityException e) {
|
|
// No read permission for mUri, assume empty stream types list.
|
|
}
|
|
boolean hasHtml = false;
|
|
boolean hasText = false;
|
|
if (types != null) {
|
|
for (String type : types) {
|
|
if ("text/html".equals(type)) {
|
|
hasHtml = true;
|
|
} else if (type.startsWith("text/")) {
|
|
hasText = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
// If the provider can serve data we can use, open and load it.
|
|
if (hasHtml || hasText) {
|
|
FileInputStream stream = null;
|
|
try {
|
|
// Ask for a stream of the desired type.
|
|
AssetFileDescriptor descr = context.getContentResolver()
|
|
.openTypedAssetFileDescriptor(mUri,
|
|
hasHtml ? "text/html" : "text/plain", null);
|
|
stream = descr.createInputStream();
|
|
InputStreamReader reader = new InputStreamReader(stream, "UTF-8");
|
|
|
|
// Got it... copy the stream into a local string and return it.
|
|
StringBuilder builder = new StringBuilder(128);
|
|
char[] buffer = new char[8192];
|
|
int len;
|
|
while ((len=reader.read(buffer)) > 0) {
|
|
builder.append(buffer, 0, len);
|
|
}
|
|
String text = builder.toString();
|
|
if (hasHtml) {
|
|
if (styled) {
|
|
// We loaded HTML formatted text and the caller
|
|
// want styled text, convert it.
|
|
try {
|
|
CharSequence newText = Html.fromHtml(text);
|
|
return newText != null ? newText : text;
|
|
} catch (RuntimeException e) {
|
|
return text;
|
|
}
|
|
} else {
|
|
// We loaded HTML formatted text and that is what
|
|
// the caller wants, just return it.
|
|
return text.toString();
|
|
}
|
|
}
|
|
if (styled) {
|
|
// We loaded plain text and the caller wants styled
|
|
// text, that is all we have so return it.
|
|
return text;
|
|
} else {
|
|
// We loaded plain text and the caller wants HTML
|
|
// text, escape it for HTML.
|
|
return Html.escapeHtml(text);
|
|
}
|
|
|
|
} catch (SecurityException e) {
|
|
Log.w(TAG, "Failure opening stream", e);
|
|
|
|
} catch (FileNotFoundException e) {
|
|
// Unable to open content URI as text... not really an
|
|
// error, just something to ignore.
|
|
|
|
} catch (IOException e) {
|
|
// Something bad has happened.
|
|
Log.w(TAG, "Failure loading text", e);
|
|
return Html.escapeHtml(e.toString());
|
|
|
|
} finally {
|
|
if (stream != null) {
|
|
try {
|
|
stream.close();
|
|
} catch (IOException e) {
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// If we couldn't open the URI as a stream, use the URI itself as a textual
|
|
// representation (but not for "content", "android.resource" or "file" schemes).
|
|
final String scheme = mUri.getScheme();
|
|
if (SCHEME_CONTENT.equals(scheme)
|
|
|| SCHEME_ANDROID_RESOURCE.equals(scheme)
|
|
|| SCHEME_FILE.equals(scheme)) {
|
|
return "";
|
|
}
|
|
|
|
if (styled) {
|
|
return uriToStyledText(mUri.toString());
|
|
} else {
|
|
return uriToHtml(mUri.toString());
|
|
}
|
|
}
|
|
|
|
// Finally, if all we have is an Intent, then we can just turn that
|
|
// into text. Not the most user-friendly thing, but it's something.
|
|
if (mIntent != null) {
|
|
if (styled) {
|
|
return uriToStyledText(mIntent.toUri(Intent.URI_INTENT_SCHEME));
|
|
} else {
|
|
return uriToHtml(mIntent.toUri(Intent.URI_INTENT_SCHEME));
|
|
}
|
|
}
|
|
|
|
// Shouldn't get here, but just in case...
|
|
return "";
|
|
}
|
|
|
|
private String uriToHtml(String uri) {
|
|
StringBuilder builder = new StringBuilder(256);
|
|
builder.append("<a href=\"");
|
|
builder.append(Html.escapeHtml(uri));
|
|
builder.append("\">");
|
|
builder.append(Html.escapeHtml(uri));
|
|
builder.append("</a>");
|
|
return builder.toString();
|
|
}
|
|
|
|
private CharSequence uriToStyledText(String uri) {
|
|
SpannableStringBuilder builder = new SpannableStringBuilder();
|
|
builder.append(uri);
|
|
builder.setSpan(new URLSpan(uri), 0, builder.length(),
|
|
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
|
|
return builder;
|
|
}
|
|
|
|
@Override
|
|
public String toString() {
|
|
StringBuilder b = new StringBuilder(128);
|
|
|
|
b.append("ClipData.Item { ");
|
|
toShortString(b, true);
|
|
b.append(" }");
|
|
|
|
return b.toString();
|
|
}
|
|
|
|
/**
|
|
* Appends this item to the given builder.
|
|
* @param redactContent If true, redacts common forms of PII; otherwise appends full
|
|
* details.
|
|
* @hide
|
|
*/
|
|
public void toShortString(StringBuilder b, boolean redactContent) {
|
|
boolean first = true;
|
|
if (mHtmlText != null) {
|
|
first = false;
|
|
if (redactContent) {
|
|
b.append("H(").append(mHtmlText.length()).append(')');
|
|
} else {
|
|
b.append("H:").append(mHtmlText);
|
|
}
|
|
}
|
|
if (mText != null) {
|
|
if (!first) {
|
|
b.append(' ');
|
|
}
|
|
first = false;
|
|
if (redactContent) {
|
|
b.append("T(").append(mText.length()).append(')');
|
|
} else {
|
|
b.append("T:").append(mText);
|
|
}
|
|
}
|
|
if (mUri != null) {
|
|
if (!first) {
|
|
b.append(' ');
|
|
}
|
|
first = false;
|
|
if (redactContent) {
|
|
b.append("U(").append(mUri.getScheme()).append(')');
|
|
} else {
|
|
b.append("U:").append(mUri);
|
|
}
|
|
}
|
|
if (mIntent != null) {
|
|
if (!first) {
|
|
b.append(' ');
|
|
}
|
|
first = false;
|
|
b.append("I:");
|
|
mIntent.toShortString(b, redactContent, true, true, true);
|
|
}
|
|
}
|
|
|
|
/** @hide */
|
|
public void dumpDebug(ProtoOutputStream proto, long fieldId) {
|
|
final long token = proto.start(fieldId);
|
|
|
|
if (mHtmlText != null) {
|
|
proto.write(ClipDataProto.Item.HTML_TEXT, mHtmlText);
|
|
} else if (mText != null) {
|
|
proto.write(ClipDataProto.Item.TEXT, mText.toString());
|
|
} else if (mUri != null) {
|
|
proto.write(ClipDataProto.Item.URI, mUri.toString());
|
|
} else if (mIntent != null) {
|
|
mIntent.dumpDebug(proto, ClipDataProto.Item.INTENT, true, true, true, true);
|
|
} else {
|
|
proto.write(ClipDataProto.Item.NOTHING, true);
|
|
}
|
|
|
|
proto.end(token);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Create a new clip.
|
|
*
|
|
* @param label Label to show to the user describing this clip.
|
|
* @param mimeTypes An array of MIME types this data is available as.
|
|
* @param item The contents of the first item in the clip.
|
|
*/
|
|
public ClipData(CharSequence label, String[] mimeTypes, Item item) {
|
|
mClipDescription = new ClipDescription(label, mimeTypes);
|
|
if (item == null) {
|
|
throw new NullPointerException("item is null");
|
|
}
|
|
mIcon = null;
|
|
mItems = new ArrayList<>();
|
|
mItems.add(item);
|
|
mClipDescription.setIsStyledText(isStyledText());
|
|
}
|
|
|
|
/**
|
|
* Create a new clip.
|
|
*
|
|
* @param description The ClipDescription describing the clip contents.
|
|
* @param item The contents of the first item in the clip.
|
|
*/
|
|
public ClipData(ClipDescription description, Item item) {
|
|
mClipDescription = description;
|
|
if (item == null) {
|
|
throw new NullPointerException("item is null");
|
|
}
|
|
mIcon = null;
|
|
mItems = new ArrayList<>();
|
|
mItems.add(item);
|
|
mClipDescription.setIsStyledText(isStyledText());
|
|
}
|
|
|
|
/**
|
|
* Create a new clip.
|
|
*
|
|
* @param description The ClipDescription describing the clip contents.
|
|
* @param items The items in the clip. Not that a defensive copy of this
|
|
* list is not made, so caution should be taken to ensure the
|
|
* list is not available for further modification.
|
|
* @hide
|
|
*/
|
|
public ClipData(ClipDescription description, ArrayList<Item> items) {
|
|
mClipDescription = description;
|
|
if (items == null) {
|
|
throw new NullPointerException("item is null");
|
|
}
|
|
mIcon = null;
|
|
mItems = items;
|
|
}
|
|
|
|
/**
|
|
* Create a new clip that is a copy of another clip. This does a deep-copy
|
|
* of all items in the clip.
|
|
*
|
|
* @param other The existing ClipData that is to be copied.
|
|
*/
|
|
public ClipData(ClipData other) {
|
|
mClipDescription = other.mClipDescription;
|
|
mIcon = other.mIcon;
|
|
mItems = new ArrayList<>(other.mItems);
|
|
}
|
|
|
|
/**
|
|
* Returns a copy of the ClipData which will parcel the Item's activity infos.
|
|
* @hide
|
|
*/
|
|
public ClipData copyForTransferWithActivityInfo() {
|
|
ClipData copy = new ClipData(this);
|
|
copy.mParcelItemActivityInfos = true;
|
|
return copy;
|
|
}
|
|
|
|
/**
|
|
* Returns whether this clip data will parcel the Item's activity infos.
|
|
* @hide
|
|
*/
|
|
public boolean willParcelWithActivityInfo() {
|
|
return mParcelItemActivityInfos;
|
|
}
|
|
|
|
/**
|
|
* Create a new ClipData holding data of the type
|
|
* {@link ClipDescription#MIMETYPE_TEXT_PLAIN}.
|
|
*
|
|
* @param label User-visible label for the clip data.
|
|
* @param text The actual text in the clip.
|
|
* @return Returns a new ClipData containing the specified data.
|
|
*/
|
|
static public ClipData newPlainText(CharSequence label, CharSequence text) {
|
|
Item item = new Item(text);
|
|
return new ClipData(label, MIMETYPES_TEXT_PLAIN, item);
|
|
}
|
|
|
|
/**
|
|
* Create a new ClipData holding data of the type
|
|
* {@link ClipDescription#MIMETYPE_TEXT_HTML}.
|
|
*
|
|
* @param label User-visible label for the clip data.
|
|
* @param text The text of clip as plain text, for receivers that don't
|
|
* handle HTML. This is required.
|
|
* @param htmlText The actual HTML text in the clip.
|
|
* @return Returns a new ClipData containing the specified data.
|
|
*/
|
|
static public ClipData newHtmlText(CharSequence label, CharSequence text,
|
|
String htmlText) {
|
|
Item item = new Item(text, htmlText);
|
|
return new ClipData(label, MIMETYPES_TEXT_HTML, item);
|
|
}
|
|
|
|
/**
|
|
* Create a new ClipData holding an Intent with MIME type
|
|
* {@link ClipDescription#MIMETYPE_TEXT_INTENT}.
|
|
*
|
|
* @param label User-visible label for the clip data.
|
|
* @param intent The actual Intent in the clip.
|
|
* @return Returns a new ClipData containing the specified data.
|
|
*/
|
|
static public ClipData newIntent(CharSequence label, Intent intent) {
|
|
Item item = new Item(intent);
|
|
return new ClipData(label, MIMETYPES_TEXT_INTENT, item);
|
|
}
|
|
|
|
/**
|
|
* Create a new ClipData holding a URI. If the URI is a content: URI,
|
|
* this will query the content provider for the MIME type of its data and
|
|
* use that as the MIME type. Otherwise, it will use the MIME type
|
|
* {@link ClipDescription#MIMETYPE_TEXT_URILIST}.
|
|
*
|
|
* @param resolver ContentResolver used to get information about the URI.
|
|
* @param label User-visible label for the clip data.
|
|
* @param uri The URI in the clip.
|
|
* @return Returns a new ClipData containing the specified data.
|
|
*/
|
|
static public ClipData newUri(ContentResolver resolver, CharSequence label,
|
|
Uri uri) {
|
|
Item item = new Item(uri);
|
|
String[] mimeTypes = getMimeTypes(resolver, uri);
|
|
return new ClipData(label, mimeTypes, item);
|
|
}
|
|
|
|
/**
|
|
* Finds all applicable MIME types for a given URI.
|
|
*
|
|
* @param resolver ContentResolver used to get information about the URI.
|
|
* @param uri The URI.
|
|
* @return Returns an array of MIME types.
|
|
*/
|
|
private static String[] getMimeTypes(ContentResolver resolver, Uri uri) {
|
|
String[] mimeTypes = null;
|
|
if (SCHEME_CONTENT.equals(uri.getScheme())) {
|
|
String realType = resolver.getType(uri);
|
|
mimeTypes = resolver.getStreamTypes(uri, "*/*");
|
|
if (realType != null) {
|
|
if (mimeTypes == null) {
|
|
mimeTypes = new String[] { realType };
|
|
} else if (!ArrayUtils.contains(mimeTypes, realType)) {
|
|
String[] tmp = new String[mimeTypes.length + 1];
|
|
tmp[0] = realType;
|
|
System.arraycopy(mimeTypes, 0, tmp, 1, mimeTypes.length);
|
|
mimeTypes = tmp;
|
|
}
|
|
}
|
|
}
|
|
if (mimeTypes == null) {
|
|
mimeTypes = MIMETYPES_TEXT_URILIST;
|
|
}
|
|
return mimeTypes;
|
|
}
|
|
|
|
/**
|
|
* Create a new ClipData holding an URI with MIME type
|
|
* {@link ClipDescription#MIMETYPE_TEXT_URILIST}.
|
|
* Unlike {@link #newUri(ContentResolver, CharSequence, Uri)}, nothing
|
|
* is inferred about the URI -- if it is a content: URI holding a bitmap,
|
|
* the reported type will still be uri-list. Use this with care!
|
|
*
|
|
* @param label User-visible label for the clip data.
|
|
* @param uri The URI in the clip.
|
|
* @return Returns a new ClipData containing the specified data.
|
|
*/
|
|
static public ClipData newRawUri(CharSequence label, Uri uri) {
|
|
Item item = new Item(uri);
|
|
return new ClipData(label, MIMETYPES_TEXT_URILIST, item);
|
|
}
|
|
|
|
/**
|
|
* Return the {@link ClipDescription} associated with this data, describing
|
|
* what it contains.
|
|
*/
|
|
public ClipDescription getDescription() {
|
|
return mClipDescription;
|
|
}
|
|
|
|
/**
|
|
* Add a new Item to the overall ClipData container.
|
|
* <p> This method will <em>not</em> update the list of available MIME types in the
|
|
* {@link ClipDescription}. It should be used only when adding items which do not add new
|
|
* MIME types to this clip. If this is not the case, use {@link #addItem(ContentResolver, Item)}
|
|
* or call {@link #ClipData(CharSequence, String[], Item)} with a complete list of MIME types.
|
|
* @param item Item to be added.
|
|
*/
|
|
public void addItem(Item item) {
|
|
if (item == null) {
|
|
throw new NullPointerException("item is null");
|
|
}
|
|
mItems.add(item);
|
|
if (mItems.size() == 1) {
|
|
mClipDescription.setIsStyledText(isStyledText());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Add a new Item to the overall ClipData container.
|
|
* <p> Unlike {@link #addItem(Item)}, this method will update the list of available MIME types
|
|
* in the {@link ClipDescription}.
|
|
* @param resolver ContentResolver used to get information about the URI possibly contained in
|
|
* the item.
|
|
* @param item Item to be added.
|
|
*/
|
|
public void addItem(ContentResolver resolver, Item item) {
|
|
addItem(item);
|
|
|
|
if (item.getHtmlText() != null) {
|
|
mClipDescription.addMimeTypes(MIMETYPES_TEXT_HTML);
|
|
} else if (item.getText() != null) {
|
|
mClipDescription.addMimeTypes(MIMETYPES_TEXT_PLAIN);
|
|
}
|
|
|
|
if (item.getIntent() != null) {
|
|
mClipDescription.addMimeTypes(MIMETYPES_TEXT_INTENT);
|
|
}
|
|
|
|
if (item.getUri() != null) {
|
|
mClipDescription.addMimeTypes(getMimeTypes(resolver, item.getUri()));
|
|
}
|
|
}
|
|
|
|
/** @hide */
|
|
@UnsupportedAppUsage
|
|
public Bitmap getIcon() {
|
|
return mIcon;
|
|
}
|
|
|
|
/**
|
|
* Return the number of items in the clip data.
|
|
*/
|
|
public int getItemCount() {
|
|
return mItems.size();
|
|
}
|
|
|
|
/**
|
|
* Return a single item inside of the clip data. The index can range
|
|
* from 0 to {@link #getItemCount()}-1.
|
|
*/
|
|
public Item getItemAt(int index) {
|
|
return mItems.get(index);
|
|
}
|
|
|
|
/** @hide */
|
|
public void setItemAt(int index, Item item) {
|
|
mItems.set(index, item);
|
|
}
|
|
|
|
/**
|
|
* Prepare this {@link ClipData} to leave an app process.
|
|
*
|
|
* @hide
|
|
*/
|
|
@android.ravenwood.annotation.RavenwoodKeep
|
|
public void prepareToLeaveProcess(boolean leavingPackage) {
|
|
// Assume that callers are going to be granting permissions
|
|
prepareToLeaveProcess(leavingPackage, Intent.FLAG_GRANT_READ_URI_PERMISSION);
|
|
}
|
|
|
|
/**
|
|
* Prepare this {@link ClipData} to leave an app process.
|
|
*
|
|
* @hide
|
|
*/
|
|
@android.ravenwood.annotation.RavenwoodReplace
|
|
public void prepareToLeaveProcess(boolean leavingPackage, int intentFlags) {
|
|
final int size = mItems.size();
|
|
for (int i = 0; i < size; i++) {
|
|
final Item item = mItems.get(i);
|
|
if (item.mIntent != null) {
|
|
item.mIntent.prepareToLeaveProcess(leavingPackage);
|
|
}
|
|
if (item.mUri != null && leavingPackage) {
|
|
if (StrictMode.vmFileUriExposureEnabled()) {
|
|
item.mUri.checkFileUriExposed("ClipData.Item.getUri()");
|
|
}
|
|
if (StrictMode.vmContentUriWithoutPermissionEnabled()) {
|
|
item.mUri.checkContentUriWithoutPermission("ClipData.Item.getUri()",
|
|
intentFlags);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/** @hide */
|
|
public void prepareToLeaveProcess$ravenwood(boolean leavingPackage, int intentFlags) {
|
|
// No process boundaries on Ravenwood; ignored
|
|
}
|
|
|
|
/** {@hide} */
|
|
@android.ravenwood.annotation.RavenwoodThrow
|
|
public void prepareToEnterProcess(AttributionSource source) {
|
|
final int size = mItems.size();
|
|
for (int i = 0; i < size; i++) {
|
|
final Item item = mItems.get(i);
|
|
if (item.mIntent != null) {
|
|
// We can't recursively claim that this data is from a protected
|
|
// component, since it may have been filled in by a malicious app
|
|
item.mIntent.prepareToEnterProcess(false, source);
|
|
}
|
|
}
|
|
}
|
|
|
|
/** @hide */
|
|
@android.ravenwood.annotation.RavenwoodThrow
|
|
public void fixUris(int contentUserHint) {
|
|
final int size = mItems.size();
|
|
for (int i = 0; i < size; i++) {
|
|
final Item item = mItems.get(i);
|
|
if (item.mIntent != null) {
|
|
item.mIntent.fixUris(contentUserHint);
|
|
}
|
|
if (item.mUri != null) {
|
|
item.mUri = maybeAddUserId(item.mUri, contentUserHint);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Only fixing the data field of the intents
|
|
* @hide
|
|
*/
|
|
@android.ravenwood.annotation.RavenwoodThrow
|
|
public void fixUrisLight(int contentUserHint) {
|
|
final int size = mItems.size();
|
|
for (int i = 0; i < size; i++) {
|
|
final Item item = mItems.get(i);
|
|
if (item.mIntent != null) {
|
|
Uri data = item.mIntent.getData();
|
|
if (data != null) {
|
|
item.mIntent.setData(maybeAddUserId(data, contentUserHint));
|
|
}
|
|
}
|
|
if (item.mUri != null) {
|
|
item.mUri = maybeAddUserId(item.mUri, contentUserHint);
|
|
}
|
|
}
|
|
}
|
|
|
|
private boolean isStyledText() {
|
|
if (mItems.isEmpty()) {
|
|
return false;
|
|
}
|
|
final CharSequence text = mItems.get(0).getText();
|
|
if (text instanceof Spanned) {
|
|
Spanned spanned = (Spanned) text;
|
|
if (TextUtils.hasStyleSpan(spanned)) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
@Override
|
|
public String toString() {
|
|
StringBuilder b = new StringBuilder(128);
|
|
|
|
b.append("ClipData { ");
|
|
toShortString(b, true);
|
|
b.append(" }");
|
|
|
|
return b.toString();
|
|
}
|
|
|
|
/**
|
|
* Appends this clip to the given builder.
|
|
* @param redactContent If true, redacts common forms of PII; otherwise appends full details.
|
|
* @hide
|
|
*/
|
|
public void toShortString(StringBuilder b, boolean redactContent) {
|
|
boolean first;
|
|
if (mClipDescription != null) {
|
|
first = !mClipDescription.toShortString(b, redactContent);
|
|
} else {
|
|
first = true;
|
|
}
|
|
if (mIcon != null) {
|
|
if (!first) {
|
|
b.append(' ');
|
|
}
|
|
first = false;
|
|
b.append("I:");
|
|
b.append(mIcon.getWidth());
|
|
b.append('x');
|
|
b.append(mIcon.getHeight());
|
|
}
|
|
if (mItems.size() != 1) {
|
|
if (!first) {
|
|
b.append(' ');
|
|
}
|
|
first = false;
|
|
b.append(mItems.size()).append(" items:");
|
|
}
|
|
for (int i = 0; i < mItems.size(); i++) {
|
|
if (!first) {
|
|
b.append(' ');
|
|
}
|
|
first = false;
|
|
b.append('{');
|
|
mItems.get(i).toShortString(b, redactContent);
|
|
b.append('}');
|
|
}
|
|
}
|
|
|
|
/** @hide */
|
|
public void dumpDebug(ProtoOutputStream proto, long fieldId) {
|
|
final long token = proto.start(fieldId);
|
|
|
|
if (mClipDescription != null) {
|
|
mClipDescription.dumpDebug(proto, ClipDataProto.DESCRIPTION);
|
|
}
|
|
if (mIcon != null) {
|
|
final long iToken = proto.start(ClipDataProto.ICON);
|
|
proto.write(ClipDataProto.Icon.WIDTH, mIcon.getWidth());
|
|
proto.write(ClipDataProto.Icon.HEIGHT, mIcon.getHeight());
|
|
proto.end(iToken);
|
|
}
|
|
for (int i = 0; i < mItems.size(); i++) {
|
|
mItems.get(i).dumpDebug(proto, ClipDataProto.ITEMS);
|
|
}
|
|
|
|
proto.end(token);
|
|
}
|
|
|
|
/** @hide */
|
|
public void collectUris(List<Uri> out) {
|
|
for (int i = 0; i < mItems.size(); ++i) {
|
|
ClipData.Item item = getItemAt(i);
|
|
|
|
if (item.getUri() != null) {
|
|
out.add(item.getUri());
|
|
}
|
|
|
|
Intent intent = item.getIntent();
|
|
if (intent != null) {
|
|
if (intent.getData() != null) {
|
|
out.add(intent.getData());
|
|
}
|
|
if (intent.getClipData() != null) {
|
|
intent.getClipData().collectUris(out);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public int describeContents() {
|
|
return 0;
|
|
}
|
|
|
|
@Override
|
|
public void writeToParcel(Parcel dest, int flags) {
|
|
mClipDescription.writeToParcel(dest, flags);
|
|
if (mIcon != null) {
|
|
dest.writeInt(1);
|
|
mIcon.writeToParcel(dest, flags);
|
|
} else {
|
|
dest.writeInt(0);
|
|
}
|
|
final int N = mItems.size();
|
|
dest.writeInt(N);
|
|
for (int i=0; i<N; i++) {
|
|
Item item = mItems.get(i);
|
|
TextUtils.writeToParcel(item.mText, dest, flags);
|
|
dest.writeString8(item.mHtmlText);
|
|
dest.writeTypedObject(item.mIntent, flags);
|
|
dest.writeTypedObject(item.mIntentSender, flags);
|
|
dest.writeTypedObject(item.mUri, flags);
|
|
dest.writeTypedObject(mParcelItemActivityInfos ? item.mActivityInfo : null, flags);
|
|
dest.writeTypedObject(item.mTextLinks, flags);
|
|
}
|
|
}
|
|
|
|
ClipData(Parcel in) {
|
|
mClipDescription = new ClipDescription(in);
|
|
if (in.readInt() != 0) {
|
|
mIcon = Bitmap.CREATOR.createFromParcel(in);
|
|
} else {
|
|
mIcon = null;
|
|
}
|
|
mItems = new ArrayList<>();
|
|
final int N = in.readInt();
|
|
for (int i=0; i<N; i++) {
|
|
CharSequence text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in);
|
|
String htmlText = in.readString8();
|
|
Intent intent = in.readTypedObject(Intent.CREATOR);
|
|
IntentSender intentSender = in.readTypedObject(IntentSender.CREATOR);
|
|
Uri uri = in.readTypedObject(Uri.CREATOR);
|
|
ActivityInfo info = in.readTypedObject(ActivityInfo.CREATOR);
|
|
TextLinks textLinks = in.readTypedObject(TextLinks.CREATOR);
|
|
Item item = new Item(text, htmlText, intent, intentSender, uri);
|
|
item.setActivityInfo(info);
|
|
item.setTextLinks(textLinks);
|
|
mItems.add(item);
|
|
}
|
|
}
|
|
|
|
public static final @android.annotation.NonNull Parcelable.Creator<ClipData> CREATOR =
|
|
new Parcelable.Creator<>() {
|
|
|
|
@Override
|
|
public ClipData createFromParcel(Parcel source) {
|
|
return new ClipData(source);
|
|
}
|
|
|
|
@Override
|
|
public ClipData[] newArray(int size) {
|
|
return new ClipData[size];
|
|
}
|
|
};
|
|
}
|