Updating drop button targets
> Splitting DeleteDropTarget into delete and uninstall
> Showing UninstallDropTarget for app shortcuts on workspace
> Showing InfoDropTarget only when developer options is enabled
Change-Id: I4396571d2199d1581bb9c733aef88ab9b0ebd79d
diff --git a/src/com/android/launcher3/UninstallDropTarget.java b/src/com/android/launcher3/UninstallDropTarget.java
new file mode 100644
index 0000000..4a7fffe
--- /dev/null
+++ b/src/com/android/launcher3/UninstallDropTarget.java
@@ -0,0 +1,122 @@
+package com.android.launcher3;
+
+import android.content.ComponentName;
+import android.content.Context;
+import android.os.Build;
+import android.os.Bundle;
+import android.os.UserManager;
+import android.util.AttributeSet;
+import android.util.Pair;
+
+import com.android.launcher3.R;
+import com.android.launcher3.compat.UserHandleCompat;
+import com.android.launcher3.util.Thunk;
+
+public class UninstallDropTarget extends ButtonDropTarget {
+
+ public UninstallDropTarget(Context context, AttributeSet attrs) {
+ this(context, attrs, 0);
+ }
+
+ public UninstallDropTarget(Context context, AttributeSet attrs, int defStyle) {
+ super(context, attrs, defStyle);
+ }
+
+ @Override
+ protected void onFinishInflate() {
+ super.onFinishInflate();
+ // Get the hover color
+ mHoverColor = getResources().getColor(R.color.delete_target_hover_tint);
+
+ setDrawable(R.drawable.uninstall_target_selector);
+ }
+
+ @Override
+ protected boolean supportsDrop(DragSource source, Object info) {
+ if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
+ UserManager userManager = (UserManager)
+ getContext().getSystemService(Context.USER_SERVICE);
+ Bundle restrictions = userManager.getUserRestrictions();
+ if (restrictions.getBoolean(UserManager.DISALLOW_APPS_CONTROL, false)
+ || restrictions.getBoolean(UserManager.DISALLOW_UNINSTALL_APPS, false)) {
+ return false;
+ }
+ }
+
+ Pair<ComponentName, Integer> componentInfo = getAppInfoFlags(info);
+ return componentInfo != null && (componentInfo.second & AppInfo.DOWNLOADED_FLAG) != 0;
+ }
+
+ /**
+ * @return the component name and flags if {@param info} is an AppInfo or an app shortcut.
+ */
+ private static Pair<ComponentName, Integer> getAppInfoFlags(Object item) {
+ if (item instanceof AppInfo) {
+ AppInfo info = (AppInfo) item;
+ return Pair.create(info.componentName, info.flags);
+ } else if (item instanceof ShortcutInfo) {
+ ShortcutInfo info = (ShortcutInfo) item;
+ ComponentName component = info.getTargetComponent();
+ if (info.itemType == LauncherSettings.BaseLauncherColumns.ITEM_TYPE_APPLICATION
+ && component != null) {
+ return Pair.create(component, info.flags);
+ }
+ }
+ return null;
+ }
+
+ @Override
+ public void onDrop(DragObject d) {
+ // Differ item deletion
+ if (d.dragSource instanceof UninstallSource) {
+ ((UninstallSource) d.dragSource).deferCompleteDropAfterUninstallActivity();
+ }
+ super.onDrop(d);
+ }
+
+ @Override
+ void completeDrop(final DragObject d) {
+ final Pair<ComponentName, Integer> componentInfo = getAppInfoFlags(d.dragInfo);
+ final UserHandleCompat user = ((ItemInfo) d.dragInfo).user;
+ if (mLauncher.startApplicationUninstallActivity(
+ componentInfo.first, componentInfo.second, user)) {
+
+ final Runnable checkIfUninstallWasSuccess = new Runnable() {
+ @Override
+ public void run() {
+ String packageName = componentInfo.first.getPackageName();
+ boolean uninstallSuccessful = !AllAppsList.packageHasActivities(
+ getContext(), packageName, user);
+ sendUninstallResult(d.dragSource, uninstallSuccessful);
+ }
+ };
+ mLauncher.addOnResumeCallback(checkIfUninstallWasSuccess);
+ } else {
+ sendUninstallResult(d.dragSource, false);
+ }
+ }
+
+ @Thunk void sendUninstallResult(DragSource target, boolean result) {
+ if (target instanceof UninstallSource) {
+ ((UninstallSource) target).onUninstallActivityReturned(result);
+ }
+ }
+
+ /**
+ * Interface defining an object that can provide uninstallable drag objects.
+ */
+ public static interface UninstallSource {
+
+ /**
+ * A pending uninstall operation was complete.
+ * @param result true if uninstall was successful, false otherwise.
+ */
+ void onUninstallActivityReturned(boolean result);
+
+ /**
+ * Indicates that an uninstall request are made and the actual result may come
+ * after some time.
+ */
+ void deferCompleteDropAfterUninstallActivity();
+ }
+}