blob: 6083415d52924baa6d3b7a2f2e2d4592c31a6ea8 [file] [log] [blame]
package com.android.launcher3;
import static android.appwidget.AppWidgetManager.INVALID_APPWIDGET_ID;
import static android.appwidget.AppWidgetProviderInfo.WIDGET_FEATURE_RECONFIGURABLE;
import static com.android.launcher3.ItemInfoWithIcon.FLAG_SYSTEM_MASK;
import static com.android.launcher3.ItemInfoWithIcon.FLAG_SYSTEM_NO;
import static com.android.launcher3.LauncherSettings.Favorites.CONTAINER_DESKTOP;
import static com.android.launcher3.accessibility.LauncherAccessibilityDelegate.RECONFIGURE;
import static com.android.launcher3.accessibility.LauncherAccessibilityDelegate.UNINSTALL;
import android.appwidget.AppWidgetHostView;
import android.appwidget.AppWidgetProviderInfo;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.LauncherActivityInfo;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Bundle;
import android.os.UserHandle;
import android.os.UserManager;
import android.util.ArrayMap;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
import android.widget.Toast;
import com.android.launcher3.Launcher.OnResumeCallback;
import com.android.launcher3.compat.LauncherAppsCompat;
import com.android.launcher3.dragndrop.DragOptions;
import com.android.launcher3.logging.LoggerUtils;
import com.android.launcher3.userevent.nano.LauncherLogProto.ControlType;
import com.android.launcher3.userevent.nano.LauncherLogProto.Target;
import com.android.launcher3.util.Themes;
import java.net.URISyntaxException;
/**
* Drop target which provides a secondary option for an item.
* For app targets: shows as uninstall
* For configurable widgets: shows as setup
*/
public class SecondaryDropTarget extends ButtonDropTarget implements OnAlarmListener {
private static final String TAG = "SecondaryDropTarget";
private static final long CACHE_EXPIRE_TIMEOUT = 5000;
private final ArrayMap<UserHandle, Boolean> mUninstallDisabledCache = new ArrayMap<>(1);
private final Alarm mCacheExpireAlarm;
protected int mCurrentAccessibilityAction = -1;
public SecondaryDropTarget(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public SecondaryDropTarget(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
mCacheExpireAlarm = new Alarm();
mCacheExpireAlarm.setOnAlarmListener(this);
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
setupUi(UNINSTALL);
}
protected void setupUi(int action) {
if (action == mCurrentAccessibilityAction) {
return;
}
mCurrentAccessibilityAction = action;
if (action == UNINSTALL) {
mHoverColor = getResources().getColor(R.color.uninstall_target_hover_tint);
setDrawable(R.drawable.ic_uninstall_shadow);
updateText(R.string.uninstall_drop_target_label);
} else {
mHoverColor = Themes.getColorAccent(getContext());
setDrawable(R.drawable.ic_setup_shadow);
updateText(R.string.gadget_setup_text);
}
}
@Override
public void onAlarm(Alarm alarm) {
mUninstallDisabledCache.clear();
}
@Override
public int getAccessibilityAction() {
return mCurrentAccessibilityAction;
}
@Override
public Target getDropTargetForLogging() {
Target t = LoggerUtils.newTarget(Target.Type.CONTROL);
t.controlType = mCurrentAccessibilityAction == UNINSTALL ? ControlType.UNINSTALL_TARGET
: ControlType.SETTINGS_BUTTON;
return t;
}
@Override
protected boolean supportsDrop(ItemInfo info) {
return supportsAccessibilityDrop(info, getViewUnderDrag(info));
}
@Override
public boolean supportsAccessibilityDrop(ItemInfo info, View view) {
if (view instanceof AppWidgetHostView) {
if (getReconfigurableWidgetId(view) != INVALID_APPWIDGET_ID) {
setupUi(RECONFIGURE);
return true;
}
return false;
}
setupUi(UNINSTALL);
Boolean uninstallDisabled = mUninstallDisabledCache.get(info.user);
if (uninstallDisabled == null) {
UserManager userManager =
(UserManager) getContext().getSystemService(Context.USER_SERVICE);
Bundle restrictions = userManager.getUserRestrictions(info.user);
uninstallDisabled = restrictions.getBoolean(UserManager.DISALLOW_APPS_CONTROL, false)
|| restrictions.getBoolean(UserManager.DISALLOW_UNINSTALL_APPS, false);
mUninstallDisabledCache.put(info.user, uninstallDisabled);
}
// Cancel any pending alarm and set cache expiry after some time
mCacheExpireAlarm.setAlarm(CACHE_EXPIRE_TIMEOUT);
if (uninstallDisabled) {
return false;
}
if (info instanceof ItemInfoWithIcon) {
ItemInfoWithIcon iconInfo = (ItemInfoWithIcon) info;
if ((iconInfo.runtimeStatusFlags & FLAG_SYSTEM_MASK) != 0) {
return (iconInfo.runtimeStatusFlags & FLAG_SYSTEM_NO) != 0;
}
}
return getUninstallTarget(info) != null;
}
/**
* @return the component name that should be uninstalled or null.
*/
private ComponentName getUninstallTarget(ItemInfo item) {
Intent intent = null;
UserHandle user = null;
if (item != null &&
item.itemType == LauncherSettings.BaseLauncherColumns.ITEM_TYPE_APPLICATION) {
intent = item.getIntent();
user = item.user;
}
if (intent != null) {
LauncherActivityInfo info = LauncherAppsCompat.getInstance(mLauncher)
.resolveActivity(intent, user);
if (info != null
&& (info.getApplicationInfo().flags & ApplicationInfo.FLAG_SYSTEM) == 0) {
return info.getComponentName();
}
}
return null;
}
@Override
public void onDrop(DragObject d, DragOptions options) {
// Defer onComplete
d.dragSource = new DeferredOnComplete(d.dragSource, getContext());
super.onDrop(d, options);
}
@Override
public void completeDrop(final DragObject d) {
ComponentName target = performDropAction(getViewUnderDrag(d.dragInfo), d.dragInfo);
if (d.dragSource instanceof DeferredOnComplete) {
DeferredOnComplete deferred = (DeferredOnComplete) d.dragSource;
if (target != null) {
deferred.mPackageName = target.getPackageName();
mLauncher.setOnResumeCallback(deferred);
} else {
deferred.sendFailure();
}
}
}
private View getViewUnderDrag(ItemInfo info) {
if (info instanceof LauncherAppWidgetInfo && info.container == CONTAINER_DESKTOP &&
mLauncher.getWorkspace().getDragInfo() != null) {
return mLauncher.getWorkspace().getDragInfo().cell;
}
return null;
}
/**
* Verifies that the view is an reconfigurable widget and returns the corresponding widget Id,
* otherwise return {@code INVALID_APPWIDGET_ID}
*/
private int getReconfigurableWidgetId(View view) {
if (!(view instanceof AppWidgetHostView)) {
return INVALID_APPWIDGET_ID;
}
AppWidgetHostView hostView = (AppWidgetHostView) view;
AppWidgetProviderInfo widgetInfo = hostView.getAppWidgetInfo();
if (widgetInfo == null || widgetInfo.configure == null) {
return INVALID_APPWIDGET_ID;
}
if ( (LauncherAppWidgetProviderInfo.fromProviderInfo(getContext(), widgetInfo)
.getWidgetFeatures() & WIDGET_FEATURE_RECONFIGURABLE) == 0) {
return INVALID_APPWIDGET_ID;
}
return hostView.getAppWidgetId();
}
/**
* Performs the drop action and returns the target component for the dragObject or null if
* the action was not performed.
*/
protected ComponentName performDropAction(View view, ItemInfo info) {
if (mCurrentAccessibilityAction == RECONFIGURE) {
int widgetId = getReconfigurableWidgetId(view);
if (widgetId != INVALID_APPWIDGET_ID) {
mLauncher.getAppWidgetHost().startConfigActivity(mLauncher, widgetId, -1);
}
return null;
}
// else: mCurrentAccessibilityAction == UNINSTALL
ComponentName cn = getUninstallTarget(info);
if (cn == null) {
// System applications cannot be installed. For now, show a toast explaining that.
// We may give them the option of disabling apps this way.
Toast.makeText(mLauncher, R.string.uninstall_system_app_text, Toast.LENGTH_SHORT).show();
return null;
}
try {
Intent i = Intent.parseUri(mLauncher.getString(R.string.delete_package_intent), 0)
.setData(Uri.fromParts("package", cn.getPackageName(), cn.getClassName()))
.putExtra(Intent.EXTRA_USER, info.user);
mLauncher.startActivity(i);
return cn;
} catch (URISyntaxException e) {
Log.e(TAG, "Failed to parse intent to start uninstall activity for item=" + info);
return null;
}
}
@Override
public void onAccessibilityDrop(View view, ItemInfo item) {
performDropAction(view, item);
}
/**
* A wrapper around {@link DragSource} which delays the {@link #onDropCompleted} action until
* {@link #onLauncherResume}
*/
private class DeferredOnComplete implements DragSource, OnResumeCallback {
private final DragSource mOriginal;
private final Context mContext;
private String mPackageName;
private DragObject mDragObject;
public DeferredOnComplete(DragSource original, Context context) {
mOriginal = original;
mContext = context;
}
@Override
public void onDropCompleted(View target, DragObject d,
boolean success) {
mDragObject = d;
}
@Override
public void fillInLogContainerData(View v, ItemInfo info, Target target,
Target targetParent) {
mOriginal.fillInLogContainerData(v, info, target, targetParent);
}
@Override
public void onLauncherResume() {
// We use MATCH_UNINSTALLED_PACKAGES as the app can be on SD card as well.
if (LauncherAppsCompat.getInstance(mContext)
.getApplicationInfo(mPackageName, PackageManager.MATCH_UNINSTALLED_PACKAGES,
mDragObject.dragInfo.user) == null) {
mDragObject.dragSource = mOriginal;
mOriginal.onDropCompleted(SecondaryDropTarget.this, mDragObject, true);
} else {
sendFailure();
}
}
public void sendFailure() {
mDragObject.dragSource = mOriginal;
mDragObject.cancelled = true;
mOriginal.onDropCompleted(SecondaryDropTarget.this, mDragObject, false);
}
}
}