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/*
* Copyright (C) 2008 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.content.pm;
import android.graphics.drawable.Drawable;
import android.os.Parcel;
import android.util.Printer;
/**
* Base class containing information common to all application components
* ({@link ActivityInfo}, {@link ServiceInfo}). This class is not intended
* to be used by itself; it is simply here to share common definitions
* between all application components. As such, it does not itself
* implement Parcelable, but does provide convenience methods to assist
* in the implementation of Parcelable in subclasses.
*/
public class ComponentInfo extends PackageItemInfo {
/**
* Global information about the application/package this component is a
* part of.
*/
public ApplicationInfo applicationInfo;
/**
* The name of the process this component should run in.
* From the "android:process" attribute or, if not set, the same
* as <var>applicationInfo.processName</var>.
*/
public String processName;
/**
* A string resource identifier (in the package's resources) containing
* a user-readable description of the component. From the "description"
* attribute or, if not set, 0.
*/
public int descriptionRes;
/**
* Indicates whether or not this component may be instantiated. Note that this value can be
* overriden by the one in its parent {@link ApplicationInfo}.
*/
public boolean enabled = true;
/**
* Set to true if this component is available for use by other applications.
* Comes from {@link android.R.attr#exported android:exported} of the
* <activity>, <receiver>, <service>, or
* <provider> tag.
*/
public boolean exported = false;
public ComponentInfo() {
}
public ComponentInfo(ComponentInfo orig) {
super(orig);
applicationInfo = orig.applicationInfo;
processName = orig.processName;
descriptionRes = orig.descriptionRes;
enabled = orig.enabled;
exported = orig.exported;
}
@Override public CharSequence loadLabel(PackageManager pm) {
if (nonLocalizedLabel != null) {
return nonLocalizedLabel;
}
ApplicationInfo ai = applicationInfo;
CharSequence label;
if (labelRes != 0) {
label = pm.getText(packageName, labelRes, ai);
if (label != null) {
return label;
}
}
if (ai.nonLocalizedLabel != null) {
return ai.nonLocalizedLabel;
}
if (ai.labelRes != 0) {
label = pm.getText(packageName, ai.labelRes, ai);
if (label != null) {
return label;
}
}
return name;
}
/**
* Return whether this component and its enclosing application are enabled.
*/
public boolean isEnabled() {
return enabled && applicationInfo.enabled;
}
/**
* Return the icon resource identifier to use for this component. If
* the component defines an icon, that is used; else, the application
* icon is used.
*
* @return The icon associated with this component.
*/
public final int getIconResource() {
return icon != 0 ? icon : applicationInfo.icon;
}
protected void dumpFront(Printer pw, String prefix) {
super.dumpFront(pw, prefix);
pw.println(prefix + "enabled=" + enabled + " exported=" + exported
+ " processName=" + processName);
if (descriptionRes != 0) {
pw.println(prefix + "description=" + descriptionRes);
}
}
protected void dumpBack(Printer pw, String prefix) {
if (applicationInfo != null) {
pw.println(prefix + "ApplicationInfo:");
applicationInfo.dump(pw, prefix + " ");
} else {
pw.println(prefix + "ApplicationInfo: null");
}
super.dumpBack(pw, prefix);
}
public void writeToParcel(Parcel dest, int parcelableFlags) {
super.writeToParcel(dest, parcelableFlags);
applicationInfo.writeToParcel(dest, parcelableFlags);
dest.writeString(processName);
dest.writeInt(descriptionRes);
dest.writeInt(enabled ? 1 : 0);
dest.writeInt(exported ? 1 : 0);
}
protected ComponentInfo(Parcel source) {
super(source);
applicationInfo = ApplicationInfo.CREATOR.createFromParcel(source);
processName = source.readString();
descriptionRes = source.readInt();
enabled = (source.readInt() != 0);
exported = (source.readInt() != 0);
}
/**
* @hide
*/
@Override protected Drawable loadDefaultIcon(PackageManager pm) {
return applicationInfo.loadIcon(pm);
}
/**
* @hide
*/
@Override
protected Drawable loadDefaultLogo(PackageManager pm) {
return applicationInfo.loadLogo(pm);
}
/**
* @hide
*/
@Override protected ApplicationInfo getApplicationInfo() {
return applicationInfo;
}
}
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