/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.documentsui.model;
import static com.android.documentsui.model.DocumentInfo.getCursorInt;
import static com.android.documentsui.model.DocumentInfo.getCursorLong;
import static com.android.documentsui.model.DocumentInfo.getCursorString;
import android.content.Context;
import android.database.Cursor;
import android.graphics.drawable.Drawable;
import android.os.Parcel;
import android.os.Parcelable;
import android.provider.DocumentsContract.Root;
import android.text.TextUtils;
import com.android.documentsui.IconUtils;
import com.android.documentsui.R;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.ProtocolException;
import java.util.Objects;
/**
* Representation of a {@link Root}.
*/
public class RootInfo implements Durable, Parcelable {
private static final int VERSION_INIT = 1;
private static final int VERSION_DROP_TYPE = 2;
public String authority;
public String rootId;
public int flags;
public int icon;
public String title;
public String summary;
public String documentId;
public long availableBytes;
public String mimeTypes;
/** Derived fields that aren't persisted */
public String[] derivedMimeTypes;
public int derivedIcon;
public RootInfo() {
reset();
}
@Override
public void reset() {
authority = null;
rootId = null;
flags = 0;
icon = 0;
title = null;
summary = null;
documentId = null;
availableBytes = -1;
mimeTypes = null;
derivedMimeTypes = null;
derivedIcon = 0;
}
@Override
public void read(DataInputStream in) throws IOException {
final int version = in.readInt();
switch (version) {
case VERSION_DROP_TYPE:
authority = DurableUtils.readNullableString(in);
rootId = DurableUtils.readNullableString(in);
flags = in.readInt();
icon = in.readInt();
title = DurableUtils.readNullableString(in);
summary = DurableUtils.readNullableString(in);
documentId = DurableUtils.readNullableString(in);
availableBytes = in.readLong();
mimeTypes = DurableUtils.readNullableString(in);
deriveFields();
break;
default:
throw new ProtocolException("Unknown version " + version);
}
}
@Override
public void write(DataOutputStream out) throws IOException {
out.writeInt(VERSION_DROP_TYPE);
DurableUtils.writeNullableString(out, authority);
DurableUtils.writeNullableString(out, rootId);
out.writeInt(flags);
out.writeInt(icon);
DurableUtils.writeNullableString(out, title);
DurableUtils.writeNullableString(out, summary);
DurableUtils.writeNullableString(out, documentId);
out.writeLong(availableBytes);
DurableUtils.writeNullableString(out, mimeTypes);
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
DurableUtils.writeToParcel(dest, this);
}
public static final Creator<RootInfo> CREATOR = new Creator<RootInfo>() {
@Override
public RootInfo createFromParcel(Parcel in) {
final RootInfo root = new RootInfo();
DurableUtils.readFromParcel(in, root);
return root;
}
@Override
public RootInfo[] newArray(int size) {
return new RootInfo[size];
}
};
public static RootInfo fromRootsCursor(String authority, Cursor cursor) {
final RootInfo root = new RootInfo();
root.authority = authority;
root.rootId = getCursorString(cursor, Root.COLUMN_ROOT_ID);
root.flags = getCursorInt(cursor, Root.COLUMN_FLAGS);
root.icon = getCursorInt(cursor, Root.COLUMN_ICON);
root.title = getCursorString(cursor, Root.COLUMN_TITLE);
root.summary = getCursorString(cursor, Root.COLUMN_SUMMARY);
root.documentId = getCursorString(cursor, Root.COLUMN_DOCUMENT_ID);
root.availableBytes = getCursorLong(cursor, Root.COLUMN_AVAILABLE_BYTES);
root.mimeTypes = getCursorString(cursor, Root.COLUMN_MIME_TYPES);
root.deriveFields();
return root;
}
private void deriveFields() {
derivedMimeTypes = (mimeTypes != null) ? mimeTypes.split("\n") : null;
// TODO: remove these special case icons
if (isExternalStorage()) {
derivedIcon = R.drawable.ic_root_sdcard;
} else if (isDownloads()) {
derivedIcon = R.drawable.ic_root_download;
} else if (isImages()) {
derivedIcon = R.drawable.ic_doc_image;
} else if (isVideos()) {
derivedIcon = R.drawable.ic_doc_video;
} else if (isAudio()) {
derivedIcon = R.drawable.ic_doc_audio;
}
}
public boolean isRecents() {
return authority == null && rootId == null;
}
public boolean isExternalStorage() {
return "com.android.externalstorage.documents".equals(authority);
}
public boolean isDownloads() {
return "com.android.providers.downloads.documents".equals(authority);
}
public boolean isImages() {
return "com.android.providers.media.documents".equals(authority)
&& "images_root".equals(rootId);
}
public boolean isVideos() {
return "com.android.providers.media.documents".equals(authority)
&& "videos_root".equals(rootId);
}
public boolean isAudio() {
return "com.android.providers.media.documents".equals(authority)
&& "audio_root".equals(rootId);
}
@Override
public String toString() {
return "Root{authority=" + authority + ", rootId=" + rootId + ", title=" + title + "}";
}
public Drawable loadIcon(Context context) {
if (derivedIcon != 0) {
return context.getDrawable(derivedIcon);
} else {
return IconUtils.loadPackageIcon(context, authority, icon);
}
}
public Drawable loadDrawerIcon(Context context) {
if (derivedIcon != 0) {
return IconUtils.applyTintColor(context, derivedIcon, R.color.item_root_icon);
} else {
return IconUtils.loadPackageIcon(context, authority, icon);
}
}
public Drawable loadGridIcon(Context context) {
if (derivedIcon != 0) {
return IconUtils.applyTintAttr(context, derivedIcon,
android.R.attr.textColorPrimaryInverse);
} else {
return IconUtils.loadPackageIcon(context, authority, icon);
}
}
public Drawable loadToolbarIcon(Context context) {
if (derivedIcon != 0) {
return IconUtils.applyTintAttr(context, derivedIcon,
android.R.attr.colorControlNormal);
} else {
return IconUtils.loadPackageIcon(context, authority, icon);
}
}
@Override
public boolean equals(Object o) {
if (o instanceof RootInfo) {
final RootInfo root = (RootInfo) o;
return Objects.equals(authority, root.authority) && Objects.equals(rootId, root.rootId);
} else {
return false;
}
}
@Override
public int hashCode() {
return Objects.hash(authority, rootId);
}
public String getDirectoryString() {
return !TextUtils.isEmpty(summary) ? summary : title;
}
}