commit a927929d99d76440e542f7c80e38119518e223fd
author Mark Renouf <mrenouf@google.com> Fri Apr 17 12:22:50 2020 -0400
committer Mark Renouf <mrenouf@google.com> Mon Apr 20 15:07:59 2020 +0000
tree 1bd4627e8ee135068e412164a7e7dcd52c41f7fd
parent 31b94bfc1e3dadf9794641c738ced9eb71617dc7

Scroll Capture Framework

This is an implementation of long screenshots supporting
interactive, incremental capture of scrolling content using
a cooperative API between the app process and the system.

Design goals:

 - Provide for tile based incremental screenshots of scrolling content
 - Support existing apps without developer action
 - Provide support for non View-based Apps & UI toolkits

Bug: 148131831
Test: atest \
      FrameworksCoreTests:android.view.ScrollCaptureClientTest \
      FrameworksCoreTests:android.view.ScrollCaptureTargetResolverTest \
      FrameworksCoreTests:com.android.internal.view.ViewGroupScrollCaptureTest \
      FrameworksCoreTests:android.view.ScrollViewCaptureHelperTest \
      WmTests:com.android.server.wm.DisplayContentTest

Merged-In: I6c66a623faba274c35b8fa857d3a72030a763aea
Change-Id: I6c66a623faba274c35b8fa857d3a72030a763aea

services/tests/wmtests/src/com/android/server/wm/DisplayContentTests.java

diff --git a/services/tests/wmtests/src/com/android/server/wm/DisplayContentTests.java b/services/tests/wmtests/src/com/android/server/wm/DisplayContentTests.java
index daff149..80fcf2e 100644
--- a/services/tests/wmtests/src/com/android/server/wm/DisplayContentTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/DisplayContentTests.java
@@ -41,6 +41,7 @@
 import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY;
 import static android.view.WindowManager.LayoutParams.TYPE_BASE_APPLICATION;
 import static android.view.WindowManager.LayoutParams.TYPE_NOTIFICATION_SHADE;
+import static android.view.WindowManager.LayoutParams.TYPE_SCREENSHOT;
 import static android.view.WindowManager.LayoutParams.TYPE_STATUS_BAR;
 import static android.view.WindowManager.LayoutParams.TYPE_VOICE_INTERACTION;
 import static android.view.WindowManager.LayoutParams.TYPE_WALLPAPER;
@@ -74,6 +75,7 @@
 import static org.mockito.ArgumentMatchers.eq;
 
 import android.annotation.SuppressLint;
+import android.app.ActivityTaskManager;
 import android.app.WindowConfiguration;
 import android.content.res.Configuration;
 import android.graphics.Rect;
@@ -1207,6 +1209,31 @@
         assertNull(taskDisplayArea.getOrCreateRootHomeTask());
     }
 
+    @Test
+    public void testFindScrollCaptureTargetWindow_behindWindow() {
+        DisplayContent display = createNewDisplay();
+        ActivityStack stack = createTaskStackOnDisplay(display);
+        Task task = createTaskInStack(stack, 0 /* userId */);
+        WindowState activityWindow = createAppWindow(task, TYPE_APPLICATION, "App Window");
+        WindowState behindWindow = createWindow(null, TYPE_SCREENSHOT, display, "Screenshot");
+
+        WindowState result = display.findScrollCaptureTargetWindow(behindWindow,
+                ActivityTaskManager.INVALID_TASK_ID);
+        assertEquals(activityWindow, result);
+    }
+
+    @Test
+    public void testFindScrollCaptureTargetWindow_taskId() {
+        DisplayContent display = createNewDisplay();
+        ActivityStack stack = createTaskStackOnDisplay(display);
+        Task task = createTaskInStack(stack, 0 /* userId */);
+        WindowState window = createAppWindow(task, TYPE_APPLICATION, "App Window");
+        WindowState behindWindow = createWindow(null, TYPE_SCREENSHOT, display, "Screenshot");
+
+        WindowState result = display.findScrollCaptureTargetWindow(null, task.mTaskId);
+        assertEquals(window, result);
+    }
+
     private boolean isOptionsPanelAtRight(int displayId) {
         return (mWm.getPreferredOptionsPanelGravity(displayId) & Gravity.RIGHT) == Gravity.RIGHT;
     }