Implement the autofill UI for chromium powered android webview.

android_webview/java/src/org/chromium/android_webview/AwContents.java

Index: android_webview/java/src/org/chromium/android_webview/AwContents.java
diff --git a/android_webview/java/src/org/chromium/android_webview/AwContents.java b/android_webview/java/src/org/chromium/android_webview/AwContents.java
index 9a0831470a30ff4e28a31905f8a52661138e3c59..1c5c8880e371eb285af42eb66f1225f74e6b92e0 100644
--- a/android_webview/java/src/org/chromium/android_webview/AwContents.java
+++ b/android_webview/java/src/org/chromium/android_webview/AwContents.java
@@ -28,6 +28,7 @@ import android.view.inputmethod.EditorInfo;
 import android.view.inputmethod.InputConnection;
 import android.webkit.GeolocationPermissions;
 import android.webkit.ValueCallback;
+import android.widget.AbsoluteLayout;
 
 import com.google.common.annotations.VisibleForTesting;
 
@@ -38,6 +39,7 @@ import org.chromium.content.browser.ContentSettings;
 import org.chromium.content.browser.ContentVideoView;
 import org.chromium.content.browser.ContentViewClient;
 import org.chromium.content.browser.ContentViewCore;
+import org.chromium.content.browser.RenderCoordinates;
 import org.chromium.content.browser.ContentViewStatics;
 import org.chromium.content.browser.LoadUrlParams;
 import org.chromium.content.browser.NavigationHistory;
@@ -46,6 +48,9 @@ import org.chromium.content.common.CleanupReference;
 import org.chromium.components.navigation_interception.InterceptNavigationDelegate;
 import org.chromium.components.navigation_interception.NavigationParams;
 import org.chromium.net.GURLUtils;
+import org.chromium.ui.ViewAndroidDelegate;
+import org.chromium.ui.autofill.AutofillPopup;
+import org.chromium.ui.autofill.AutofillSuggestion;
 import org.chromium.ui.gfx.DeviceDisplayInfo;
 
 import java.io.File;
@@ -140,6 +145,8 @@ public class AwContents {
     private boolean mContainerViewFocused;
     private boolean mWindowFocused;
 
+    private AutofillPopup mAutofillPopup;
+
     private static final class DestroyRunnable implements Runnable {
         private int mNativeAwContents;
         private DestroyRunnable(int nativeAwContents) {
@@ -1253,6 +1260,13 @@ public class AwContents {
         return mContentViewCore.performAccessibilityAction(action, arguments);
     }
 
+    /**
+     * @see android.webkit.WebView#clearFormData()

[benm (inactive), 2013/06/04 13:35:18]

might be worth a note to say that this is poorly named for legacy reasons, the
intent is to simply hide the popup

[sgurun-gerrit only, 2013/06/15 01:16:51]

Done.

+     */
+    public void clearFormData() {
+        hideAutofillPopup();
+    }
+
     //--------------------------------------------------------------------------------------------
     //  Methods called from native via JNI
     //--------------------------------------------------------------------------------------------
@@ -1380,6 +1394,80 @@ public class AwContents {
         mLayoutSizer.onPageScaleChanged(pageScaleFactor);
     }
 
+    @CalledByNative
+    private void showAutofillPopup(float x, float y, float width, float height,
+            AutofillSuggestion[] suggestions) {
+        if (mAutofillPopup == null) {
+            mAutofillPopup = new AutofillPopup(
+                mContentViewCore.getContext(),
+                getViewAndroidDelegate(),
+                new AutofillPopup.AutofillPopupDelegate() {
+                    public void requestHide() { }
+                    public void suggestionSelected(int listIndex) {
+                        nativeSuggestionSelected(mNativeAwContents, listIndex);
+                    }
+                });
+        }
+        mAutofillPopup.setAnchorRect(x, y, width, height);
+        mAutofillPopup.show(suggestions);
+    }
+
+    @CalledByNative
+    private void hideAutofillPopup() {
+        if (mAutofillPopup == null)
+            return;
+        mAutofillPopup.hide();
+        mAutofillPopup = null;
+    }
+
+    private ViewAndroidDelegate getViewAndroidDelegate() {
+        return new ViewAndroidDelegate() {
+            @Override
+            public View acquireAnchorView() {
+                View anchorView = new View(mContentViewCore.getContext());
+                mContainerView.addView(anchorView);
+                return anchorView;
+            }
+
+            @Override
+            public void setAnchorViewPosition(
+                    View view, float x, float y, float width, float height) {
+                assert(view.getParent() == mContainerView);
+
+                int leftMargin = (int)Math.round(x * mDIPScale);
+                int topMargin = (int)mContentViewCore.getRenderCoordinates().getContentOffsetYPix()
+                        + (int)Math.round(y * mDIPScale);
+
+                AbsoluteLayout.LayoutParams lp = new AbsoluteLayout.LayoutParams((int)width,
+                        (int)height, leftMargin, topMargin);
+                view.setLayoutParams(lp);
+            }
+
+            @Override
+            public void releaseAnchorView(View anchorView) {
+                mContainerView.removeView(anchorView);
+            }
+        };
+    }
+
+
+    @CalledByNative
+    private static AutofillSuggestion[] createAutofillSuggestionArray(int size) {
+        return new AutofillSuggestion[size];
+    }
+    /**
+     * @param array AutofillSuggestion array that should get a new suggestion added.
+     * @param index Index in the array where to place a new suggestion.
+     * @param name Name of the suggestion.
+     * @param label Label of the suggestion.
+     * @param uniqueId Unique suggestion id.
+     */
+    @CalledByNative
+    private static void addToAutofillSuggestionArray(AutofillSuggestion[] array, int index,
+            String name, String label, int uniqueId) {
+        array[index] = new AutofillSuggestion(name, label, uniqueId);
+    }
+
     // -------------------------------------------------------------------------------------------
     // Helper methods
     // -------------------------------------------------------------------------------------------
@@ -1492,4 +1580,7 @@ public class AwContents {
 
     private native void nativeInvokeGeolocationCallback(
             int nativeAwContents, boolean value, String requestingFrame);
+
+
+    private native void nativeSuggestionSelected(int nativeAwContents, int position);
 }