1 files changed, 103 insertions, 0 deletions
diff --git a/quickstep/src/com/android/quickstep/views/FloatingAppPairView.kt b/quickstep/src/com/android/quickstep/views/FloatingAppPairView.kt
new file mode 100644
index 0000000000..e90aa13d97
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+++ b/quickstep/src/com/android/quickstep/views/FloatingAppPairView.kt
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2023 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.quickstep.views
+
+import android.content.Context
+import android.graphics.Canvas
+import android.graphics.Rect
+import android.graphics.RectF
+import android.graphics.drawable.Drawable
+import android.util.AttributeSet
+import android.view.View
+import android.view.ViewGroup
+import android.widget.FrameLayout
+import com.android.launcher3.R
+import com.android.launcher3.Utilities
+import com.android.launcher3.statemanager.StatefulActivity
+import com.android.launcher3.views.BaseDragLayer
+
+/**
+ * A temporary View that is created for the app pair launch animation and destroyed at the end.
+ * Matches the size & position of the app pair icon graphic, and expands to full screen.
+ */
+class FloatingAppPairView @JvmOverloads constructor(context: Context, attrs: AttributeSet? = null) :
+    FrameLayout(context, attrs) {
+    companion object {
+        fun getFloatingAppPairView(
+            launcher: StatefulActivity<*>,
+            originalView: View,
+            appIcon1: Drawable,
+            appIcon2: Drawable,
+            dividerPos: Int
+        ): FloatingAppPairView {
+            val dragLayer: ViewGroup = launcher.getDragLayer()
+            val floatingView =
+                launcher
+                    .getLayoutInflater()
+                    .inflate(R.layout.floating_app_pair_view, dragLayer, false)
+                    as FloatingAppPairView
+            floatingView.init(launcher, originalView, appIcon1, appIcon2, dividerPos)
+            dragLayer.addView(floatingView, dragLayer.childCount - 1)
+            return floatingView
+        }
+    }
+
+    val startingPosition = RectF()
+    private lateinit var background: FloatingAppPairBackground
+    var progress = 0f
+
+    /** Initializes the view, copying the bounds and location of the original icon view. */
+    fun init(
+        launcher: StatefulActivity<*>,
+        originalView: View,
+        appIcon1: Drawable,
+        appIcon2: Drawable,
+        dividerPos: Int
+    ) {
+        val viewBounds = Rect(0, 0, originalView.width, originalView.height)
+        Utilities.getBoundsForViewInDragLayer(
+            launcher.getDragLayer(),
+            originalView,
+            viewBounds,
+            false /* ignoreTransform */,
+            null /* recycle */,
+            startingPosition
+        )
+        val lp =
+            BaseDragLayer.LayoutParams(
+                Math.round(startingPosition.width()),
+                Math.round(startingPosition.height())
+            )
+        lp.ignoreInsets = true
+
+        // Position the floating view exactly on top of the original
+        lp.topMargin = Math.round(startingPosition.top)
+        lp.leftMargin = Math.round(startingPosition.left)
+
+        layout(lp.leftMargin, lp.topMargin, lp.leftMargin + lp.width, lp.topMargin + lp.height)
+        layoutParams = lp
+
+        // Prepare to draw app pair icon background
+        background = FloatingAppPairBackground(context, this, appIcon1, appIcon2, dividerPos)
+        background.setBounds(0, 0, lp.width, lp.height)
+    }
+
+    override fun dispatchDraw(canvas: Canvas) {
+        super.dispatchDraw(canvas)
+        background.draw(canvas)
+    }
+}