Refactor LauncherAppTransitionManager & polish for new app transitions.

* Add start delay when launcher resumes from all apps or landscape.
* Track the last app transition animator and cancel it before beginning a new one,
  otherwise the animators can conflict with each other.
  ie. Opening an app from all apps and then immediately pressing back to return to
      all apps.
* Use class overrride instead of UiFactory.

Bug: 70220260
Change-Id: I4755d45d820f9d551e443d6c4a148e8789c5bc57

1 files changed, 64 insertions, 0 deletions

diff --git a/src/com/android/launcher3/LauncherAppTransitionManager.java b/src/com/android/launcher3/LauncherAppTransitionManager.java
new file mode 100644
index 000000000..9d68dc9e8
--- /dev/null
+++ b/src/com/android/launcher3/LauncherAppTransitionManager.java
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2018 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.launcher3;
+
+
+import android.app.ActivityOptions;
+import android.graphics.Rect;
+import android.graphics.drawable.Drawable;
+import android.os.Bundle;
+import android.view.View;
+
+/**
+ * Manages the opening and closing app transitions from Launcher.
+ */
+public class LauncherAppTransitionManager {
+
+    public Bundle getDefaultActivityLaunchOptions(Launcher launcher, View v) {
+        if (Utilities.ATLEAST_MARSHMALLOW) {
+            int left = 0, top = 0;
+            int width = v.getMeasuredWidth(), height = v.getMeasuredHeight();
+            if (v instanceof BubbleTextView) {
+                // Launch from center of icon, not entire view
+                Drawable icon = ((BubbleTextView) v).getIcon();
+                if (icon != null) {
+                    Rect bounds = icon.getBounds();
+                    left = (width - bounds.width()) / 2;
+                    top = v.getPaddingTop();
+                    width = bounds.width();
+                    height = bounds.height();
+                }
+            }
+            return ActivityOptions.makeClipRevealAnimation(v, left, top, width, height)
+                    .toBundle();
+        } else if (Utilities.ATLEAST_LOLLIPOP_MR1) {
+            // On L devices, we use the device default slide-up transition.
+            // On L MR1 devices, we use a custom version of the slide-up transition which
+            // doesn't have the delay present in the device default.
+            return ActivityOptions.makeCustomAnimation(launcher, R.anim.task_open_enter,
+                    R.anim.no_anim).toBundle();
+        }
+        return null;
+    }
+
+    public Bundle getActivityLaunchOptions(Launcher launcher, View v) {
+        return getDefaultActivityLaunchOptions(launcher, v);
+    }
+
+    public void registerRemoteAnimations() {
+    }
+}