Adding drag target bar.

Change-Id: Ia00ed30264ea5f1d3c919111d15588ef441bfe20

1 files changed, 88 insertions, 0 deletions

diff --git a/src/com/android/launcher2/SearchDropTargetBar.java b/src/com/android/launcher2/SearchDropTargetBar.java
new file mode 100644
index 000000000..7a208b761
--- /dev/null
+++ b/src/com/android/launcher2/SearchDropTargetBar.java
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2011 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.content.res.Resources;
+import android.graphics.PorterDuff;
+import android.graphics.PorterDuffColorFilter;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.FrameLayout;
+
+import com.android.launcher.R;
+
+/*
+ * Ths bar will manage the transition between the QSB search bar and the delete drop
+ * targets so that each of the individual IconDropTargets don't have to.
+ */
+public class SearchDropTargetBar extends FrameLayout implements DragController.DragListener {
+
+    private static final int sTransitionInDuration = 275;
+    private static final int sTransitionOutDuration = 200;
+
+    private View mQSBSearchBar;
+    private View mDropTargetBar;
+    private IconDropTarget mInfoDropTarget;
+    private IconDropTarget mDeleteDropTarget;
+
+    public SearchDropTargetBar(Context context, AttributeSet attrs) {
+        this(context, attrs, 0);
+    }
+
+    public SearchDropTargetBar(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+    }
+
+    public void setup(Launcher launcher, DragController dragController) {
+        dragController.addDragListener(this);
+        dragController.addDragListener(mInfoDropTarget);
+        dragController.addDragListener(mDeleteDropTarget);
+        dragController.addDropTarget(mInfoDropTarget);
+        dragController.addDropTarget(mDeleteDropTarget);
+        mInfoDropTarget.setLauncher(launcher);
+        mDeleteDropTarget.setLauncher(launcher);
+    }
+
+    @Override
+    protected void onFinishInflate() {
+        super.onFinishInflate();
+
+        // Get the individual components
+        mQSBSearchBar = findViewById(R.id.qsb_search_bar);
+        mDropTargetBar = findViewById(R.id.drag_target_bar);
+        mInfoDropTarget = (IconDropTarget) mDropTargetBar.findViewById(R.id.info_target);
+        mDeleteDropTarget = (IconDropTarget) mDropTargetBar.findViewById(R.id.delete_target);
+    }
+
+    /*
+     * DragController.DragListener implementation
+     */
+    @Override
+    public void onDragStart(DragSource source, Object info, int dragAction) {
+        // Animate out the QSB search bar, and animate in the drop target bar
+        mQSBSearchBar.animate().alpha(0f).setDuration(sTransitionOutDuration);
+        mDropTargetBar.animate().alpha(1f).setDuration(sTransitionInDuration);
+    }
+
+    @Override
+    public void onDragEnd() {
+        // Restore the QSB search bar, and animate out the drop target bar
+        mDropTargetBar.animate().alpha(0f).setDuration(sTransitionOutDuration);
+        mQSBSearchBar.animate().alpha(1f).setDuration(sTransitionInDuration);
+    }
+}