Factor out ContentViewAndroidDelegate

android_webview/javatests/src/org/chromium/android_webview/test/AwContentsTest.java

Index: android_webview/javatests/src/org/chromium/android_webview/test/AwContentsTest.java
diff --git a/android_webview/javatests/src/org/chromium/android_webview/test/AwContentsTest.java b/android_webview/javatests/src/org/chromium/android_webview/test/AwContentsTest.java
index 05331b2bd09888cfdf8f0950e9b7c4bc9c8b8dd1..57a2b86893918bad6bf5f3b21df9085925a2a4ad 100644
--- a/android_webview/javatests/src/org/chromium/android_webview/test/AwContentsTest.java
+++ b/android_webview/javatests/src/org/chromium/android_webview/test/AwContentsTest.java
@@ -17,11 +17,14 @@ import android.test.suitebuilder.annotation.SmallTest;
 import android.util.Pair;
 import android.view.KeyEvent;
 import android.view.View;
+import android.view.ViewGroup.LayoutParams;
 import android.webkit.JavascriptInterface;
+import android.widget.FrameLayout;
 
 import org.apache.http.Header;
 import org.apache.http.HttpRequest;
 import org.chromium.android_webview.AwContents;
+import org.chromium.android_webview.AwContents.AwContentViewAndroidDelegate;
 import org.chromium.android_webview.AwSettings;
 import org.chromium.android_webview.AwSwitches;
 import org.chromium.android_webview.test.TestAwContentsClient.OnDownloadStartHelper;
@@ -36,6 +39,7 @@ import org.chromium.content.browser.ChildProcessConnection;
 import org.chromium.content.browser.ChildProcessLauncher;
 import org.chromium.content.browser.test.util.CallbackHelper;
 import org.chromium.net.test.util.TestWebServer;
+import org.chromium.ui.base.ViewAndroidDelegate;
 
 import java.io.InputStream;
 import java.net.URL;
@@ -614,4 +618,162 @@ public class AwContentsTest extends AwTestBase {
                         mContentsClient.getOnEvaluateJavaScriptResultHelper(), "21 + 21"));
     }
 
+    @DisableHardwareAccelerationForTest
+    @Feature({"AndroidWebView"})
+    @SmallTest
+    public void testMovedAndRemovedAnchorViewIsNotTransferred() throws Throwable {
+        // Add, move and remove anchorView
+        AwTestContainerView containerView = createAwTestContainerViewOnMainSync(mContentsClient);
+        View anchorView = addAnchorViewTest(containerView, 1, 1f, 2f);
+        ViewAndroidDelegate delegate =
+                containerView.getAwContents().getContentViewCore().getViewAndroidDelegate();
+        removeAnchorViewTest(containerView, delegate, anchorView, 0);
+
+        // Replace container view
+        FrameLayout updatedContainerView = updateContainerView(containerView);
+
+        // Verify that no anchor view is transferred between containerViews
+        assertEquals(0, containerView.getChildCount());
+        assertEquals(0, updatedContainerView.getChildCount());
+    }
+
+    @DisableHardwareAccelerationForTest
+    @Feature({"AndroidWebView"})
+    @SmallTest
+    public void testTransferAnchorView() throws Throwable {
+        // Add anchor view
+        AwTestContainerView containerView = createAwTestContainerViewOnMainSync(mContentsClient);
+        View anchorView = addAnchorViewTest(containerView, 1);
+        LayoutParams layoutParams = anchorView.getLayoutParams();
+
+        // Replace container view
+        FrameLayout updatedContainerView = updateContainerView(containerView);
+        verifyAnchorViewCorrectlyTransferred(
+                containerView, anchorView, updatedContainerView, layoutParams);
+    }
+
+    @DisableHardwareAccelerationForTest
+    @Feature({"AndroidWebView"})
+    @SmallTest
+    public void testTransferMovedAnchorView() throws Throwable {
+        // Add anchor view and move it
+        AwTestContainerView containerView = createAwTestContainerViewOnMainSync(mContentsClient);
+        View anchorView = addAnchorViewTest(containerView, 1, 1f, 2f);
+        ViewAndroidDelegate delegate =
+                containerView.getAwContents().getContentViewCore().getViewAndroidDelegate();
+        LayoutParams layoutParams = anchorView.getLayoutParams();
+
+        // Replace container view
+        FrameLayout updatedContainerView = updateContainerView(containerView);
+
+        verifyAnchorViewCorrectlyTransferred(
+                containerView, anchorView, updatedContainerView, layoutParams);
+    }
+
+    @DisableHardwareAccelerationForTest
+    @Feature({"AndroidWebView"})
+    @SmallTest
+    public void testRemoveTransferedAnchorView() throws Throwable {
+        // Add anchor view
+        AwTestContainerView containerView = createAwTestContainerViewOnMainSync(mContentsClient);
+        View anchorView = addAnchorViewTest(containerView, 1);
+
+        // Replace container view
+        FrameLayout updatedContainerView = updateContainerView(containerView);
+
+        verifyAnchorViewCorrectlyTransferred(containerView, anchorView, updatedContainerView);
+
+        // Remove transferred anchor view
+        ViewAndroidDelegate delegate =
+                containerView.getAwContents().getContentViewCore().getViewAndroidDelegate();
+        removeAnchorViewTest(updatedContainerView, delegate, anchorView, 0);
+    }
+
+    @DisableHardwareAccelerationForTest
+    @Feature({"AndroidWebView"})
+    @SmallTest
+    public void testMoveTransferedAnchorView() throws Throwable {
+        // Add anchor view
+        AwTestContainerView containerView = createAwTestContainerViewOnMainSync(mContentsClient);
+        View anchorView = addAnchorViewTest(containerView, 1);
+        LayoutParams layoutParams = anchorView.getLayoutParams();
+
+        // Replace container view
+        FrameLayout updatedContainerView = updateContainerView(containerView);
+
+        verifyAnchorViewCorrectlyTransferred(
+                containerView, anchorView, updatedContainerView, layoutParams);
+    }
+
+    @DisableHardwareAccelerationForTest
+    @Feature({"AndroidWebView"})
+    @SmallTest
+    public void testTransferMultipleMovedAnchorViews() throws Throwable {
+        // Add and move anchorView1
+        AwTestContainerView containerView = createAwTestContainerViewOnMainSync(mContentsClient);
+        View anchorView1 = addAnchorViewTest(containerView, 1, 1f, 2f);
+        ViewAndroidDelegate delegate =
+                containerView.getAwContents().getContentViewCore().getViewAndroidDelegate();
+        LayoutParams layoutParams1 = anchorView1.getLayoutParams();
+
+        // Add and move anchorView2
+        View anchorView2 = addAnchorViewTest(containerView, 2, 2f, 4f);
+        LayoutParams layoutParams2 = anchorView2.getLayoutParams();
+
+        // Replace containerView
+        FrameLayout updatedContainerView = updateContainerView(containerView);
+
+        // Verify that anchor views are transfered in the same order
+        // and with the same layout params.
+        assertEquals(0, containerView.getChildCount());
+        assertEquals(2, updatedContainerView.getChildCount());
+        assertSame(anchorView1, updatedContainerView.getChildAt(0));
+        assertTrue(areEqual(layoutParams1, anchorView1.getLayoutParams()));
+        assertSame(anchorView2, updatedContainerView.getChildAt(1));
+        assertTrue(areEqual(layoutParams2, anchorView2.getLayoutParams()));
+    }
+
+    private View addAnchorViewTest(AwTestContainerView containerView, int expectedCount) {
+        return addAnchorViewTest(containerView, expectedCount, 0.f, 0.f);
+    }
+
+    private View addAnchorViewTest(AwTestContainerView containerView, int expectedCount,
+            float coord, float dimen) {
+        View anchorView = containerView.getAwContents().getContentViewCore().acquireAnchorView(
+                coord, coord, dimen, dimen);
+        assertEquals(expectedCount, containerView.getChildCount());
+        assertSame(anchorView, containerView.getChildAt(expectedCount - 1));
+        return anchorView;
+    }
+
+    private void removeAnchorViewTest(FrameLayout containerView, ViewAndroidDelegate delegate,
+            View anchorView1, int expectedCount) {
+        delegate.releaseAnchorView(anchorView1);
+        assertEquals(expectedCount, containerView.getChildCount());
+    }
+
+    private FrameLayout updateContainerView(AwTestContainerView containerView) {
+        FrameLayout updatedContainerView = new FrameLayout(getActivity());
+        AwContentViewAndroidDelegate delegate = (AwContentViewAndroidDelegate)
+                containerView.getAwContents().getContentViewCore().getViewAndroidDelegate();
+        delegate.updateCurrentContainerView(updatedContainerView);
+        return updatedContainerView;
+    }
+
+    private void verifyAnchorViewCorrectlyTransferred(FrameLayout containerView, View anchorView,
+            FrameLayout updatedContainerView, LayoutParams expectedParams) {
+        assertTrue(areEqual(expectedParams, anchorView.getLayoutParams()));
+        verifyAnchorViewCorrectlyTransferred(containerView, anchorView, updatedContainerView);
+    }
+
+    private void verifyAnchorViewCorrectlyTransferred(FrameLayout containerView, View anchorView,
+            FrameLayout updatedContainerView) {
+        assertEquals(0, containerView.getChildCount());
+        assertEquals(1, updatedContainerView.getChildCount());
+        assertSame(anchorView, updatedContainerView.getChildAt(0));
+    }
+
+    private boolean areEqual(LayoutParams params1, LayoutParams params2) {
+        return params1.height == params2.height && params1.width == params2.width;
+    }
 }