Implement button to get application info for an app shortcut.
For now, it's just a drag target like the delete zone. Once all apps
and the home screen support a selection mode, this (and delete) will
be implemented as buttons in the Contextual Action Bar.
Change-Id: I6bf43d03eefda672ea34c583a7021137da22b184
diff --git a/src/com/android/launcher2/ApplicationInfoDropTarget.java b/src/com/android/launcher2/ApplicationInfoDropTarget.java
new file mode 100644
index 0000000..737d198
--- /dev/null
+++ b/src/com/android/launcher2/ApplicationInfoDropTarget.java
@@ -0,0 +1,143 @@
+/*
+ * Copyright (C) 2010 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.launcher2;
+
+import android.content.Context;
+import android.graphics.Paint;
+import android.graphics.PorterDuff;
+import android.graphics.PorterDuffColorFilter;
+import android.graphics.Rect;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.ImageView;
+
+/**
+ * Implements a DropTarget which allows applications to be dropped on it,
+ * in order to launch the application info for that app.
+ */
+public class ApplicationInfoDropTarget extends ImageView implements DropTarget, DragController.DragListener {
+ private Launcher mLauncher;
+ private DragController mDragController;
+ private boolean mActive = false;
+
+ private View mHandle;
+
+ private final Paint mPaint = new Paint();
+
+ public ApplicationInfoDropTarget(Context context, AttributeSet attrs) {
+ this(context, attrs, 0);
+ }
+
+ public ApplicationInfoDropTarget(Context context, AttributeSet attrs, int defStyle) {
+ super(context, attrs, defStyle);
+ }
+
+ @Override
+ protected void onFinishInflate() {
+ super.onFinishInflate();
+ }
+
+ /**
+ * Set the color that will be used as a filter over objects dragged over this object.
+ */
+ public void setDragColor(int color) {
+ mPaint.setColorFilter(new PorterDuffColorFilter(color, PorterDuff.Mode.SRC_ATOP));
+ }
+
+ public boolean acceptDrop(DragSource source, int x, int y, int xOffset, int yOffset,
+ DragView dragView, Object dragInfo) {
+
+ // acceptDrop is called just before onDrop. We do the work here, rather than
+ // in onDrop, because it allows us to reject the drop (by returning false)
+ // so that the object being dragged isn't removed from the home screen.
+
+ String packageName = null;
+ if (dragInfo instanceof ApplicationInfo) {
+ packageName = ((ApplicationInfo)dragInfo).componentName.getPackageName();
+ } else if (dragInfo instanceof ShortcutInfo) {
+ packageName = ((ShortcutInfo)dragInfo).intent.getComponent().getPackageName();
+ }
+ mLauncher.startApplicationDetailsActivity(packageName);
+ return false;
+ }
+
+ public Rect estimateDropLocation(DragSource source, int x, int y, int xOffset, int yOffset,
+ DragView dragView, Object dragInfo, Rect recycle) {
+ return null;
+ }
+
+ public void onDrop(DragSource source, int x, int y, int xOffset, int yOffset,
+ DragView dragView, Object dragInfo) {
+
+ }
+
+ public void onDragEnter(DragSource source, int x, int y, int xOffset, int yOffset,
+ DragView dragView, Object dragInfo) {
+ dragView.setPaint(mPaint);
+ }
+
+ public void onDragOver(DragSource source, int x, int y, int xOffset, int yOffset,
+ DragView dragView, Object dragInfo) {
+ }
+
+ public void onDragExit(DragSource source, int x, int y, int xOffset, int yOffset,
+ DragView dragView, Object dragInfo) {
+ // TODO: Animate out
+ dragView.setPaint(null);
+ }
+
+ public void onDragStart(DragSource source, Object info, int dragAction) {
+ if (info != null) {
+ mActive = true;
+
+ // TODO: Animate these in and out
+
+ // Only show the info icon when an application is selected
+ if (((ItemInfo)info).itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION) {
+ setVisibility(VISIBLE);
+ }
+ mHandle.setVisibility(INVISIBLE);
+ }
+ }
+
+ public void onDragEnd() {
+ if (mActive) {
+ mActive = false;
+ // TODO: Animate these in and out
+ setVisibility(GONE);
+ mHandle.setVisibility(VISIBLE);
+ }
+ }
+
+ void setLauncher(Launcher launcher) {
+ mLauncher = launcher;
+ }
+
+ void setDragController(DragController dragController) {
+ mDragController = dragController;
+ }
+
+ void setHandle(View view) {
+ mHandle = view;
+ }
+
+ @Override
+ public DropTarget getDropTargetDelegate(DragSource source, int x, int y, int xOffset, int yOffset,
+ DragView dragView, Object dragInfo) {
+ return null;
+ }
+}