Fixing drawing order issue in bg gradient

- Synchronizing icon button animations + some initial code refactoring for icon buttons
- Fixing crash in non-xlarge devices
- Adding fix to prevent customization bg protection from being drawn in all apps

Change-Id: If231a1bf4b32f59fb1de85ff67143ee08d2c93a1

1 files changed, 136 insertions, 0 deletions

diff --git a/src/com/android/launcher2/IconDropTarget.java b/src/com/android/launcher2/IconDropTarget.java
new file mode 100644
index 000000000..5b375c3ff
--- /dev/null
+++ b/src/com/android/launcher2/IconDropTarget.java
@@ -0,0 +1,136 @@
+/*
+ * 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.ComponentName;
+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;
+
+import com.android.launcher.R;
+
+/**
+ * Implements a DropTarget which allows applications to be dropped on it,
+ * in order to launch the application info for that app.
+ */
+public class IconDropTarget extends ImageView implements DropTarget, DragController.DragListener {
+    protected Launcher mLauncher;
+
+    /**
+     * If true, this View responsible for managing its own visibility, and that of its handle.
+     * This is generally the case, but it will be set to false when this is part of the
+     * Contextual Action Bar.
+     */
+    protected boolean mDragAndDropEnabled;
+
+    /** Whether this drop target is active for the current drag */
+    protected boolean mActive;
+
+    /** The view that this view should appear in the place of. */
+    protected View mHandle = null;
+
+    /** The paint applied to the drag view on hover */
+    protected final Paint mHoverPaint = new Paint();
+
+    /** Drag zone padding */
+    protected int mInnerDragPadding;
+    protected int mOuterDragPadding;
+
+    public IconDropTarget(Context context, AttributeSet attrs) {
+        this(context, attrs, 0);
+    }
+
+    public IconDropTarget(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+        mDragAndDropEnabled = true;
+    }
+
+    void setLauncher(Launcher launcher) {
+        mLauncher = launcher;
+    }
+
+    void setHandle(View view) {
+        mHandle = view;
+    }
+
+    void setDragAndDropEnabled(boolean enabled) {
+        mDragAndDropEnabled = enabled;
+    }
+
+    public boolean acceptDrop(DragSource source, int x, int y, int xOffset, int yOffset,
+            DragView dragView, Object dragInfo) {
+        return false;
+    }
+
+    public void onDrop(DragSource source, int x, int y, int xOffset, int yOffset,
+            DragView dragView, Object dragInfo) {
+        // Do nothing
+    }
+
+    public void onDragEnter(DragSource source, int x, int y, int xOffset, int yOffset,
+            DragView dragView, Object dragInfo) {
+        if (mDragAndDropEnabled) {
+            dragView.setPaint(mHoverPaint);
+        }
+    }
+
+    public void onDragOver(DragSource source, int x, int y, int xOffset, int yOffset,
+            DragView dragView, Object dragInfo) {
+        // Do nothing
+    }
+
+    public void onDragExit(DragSource source, int x, int y, int xOffset, int yOffset,
+            DragView dragView, Object dragInfo) {
+        if (mDragAndDropEnabled) {
+            dragView.setPaint(null);
+        }
+    }
+
+    public void onDragStart(DragSource source, Object info, int dragAction) {
+        // Do nothing
+    }
+
+    public boolean isDropEnabled() {
+        return mDragAndDropEnabled && mActive;
+    }
+
+    public void onDragEnd() {
+        // Do nothing
+    }
+
+    @Override
+    public void getHitRect(Rect outRect) {
+        super.getHitRect(outRect);
+        if (LauncherApplication.isScreenXLarge()) {
+            outRect.top -= mOuterDragPadding;
+            outRect.left -= mInnerDragPadding;
+            outRect.bottom += mOuterDragPadding;
+            outRect.right += mOuterDragPadding;
+        }
+    }
+
+    @Override
+    public DropTarget getDropTargetDelegate(DragSource source, int x, int y, int xOffset,
+            int yOffset, DragView dragView, Object dragInfo) {
+        return null;
+    }
+}