Android - Introduce "keyboard accessory" for Autofill suggestions.

chrome/android/java/src/org/chromium/chrome/browser/autofill/AutofillKeyboardAccessoryBridge.java

Index: chrome/android/java/src/org/chromium/chrome/browser/autofill/AutofillKeyboardAccessoryBridge.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/autofill/AutofillKeyboardAccessoryBridge.java b/chrome/android/java/src/org/chromium/chrome/browser/autofill/AutofillKeyboardAccessoryBridge.java
new file mode 100644
index 0000000000000000000000000000000000000000..d99de663c4272fc54247d1aa21024f5135470c52
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/autofill/AutofillKeyboardAccessoryBridge.java
@@ -0,0 +1,116 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.chrome.browser.autofill;
+
+import org.chromium.base.CalledByNative;
+import org.chromium.base.JNINamespace;
+import org.chromium.chrome.browser.ResourceId;
+import org.chromium.ui.DropdownItem;
+import org.chromium.ui.autofill.AutofillKeyboardAccessory;
+import org.chromium.ui.autofill.AutofillKeyboardAccessory.AutofillKeyboardAccessoryDelegate;
+import org.chromium.ui.autofill.AutofillSuggestion;
+import org.chromium.ui.base.WindowAndroid;
+
+/**
+* JNI call glue for AutofillExternalDelagate C++ and Java objects.
+* This provides an alternative UI for Autofill suggestions, and replaces AutofillPopupBridge when
+* --enable-autofill-keyboard-accessory-view is passed on the command line.
+*/
+@JNINamespace("autofill")
+public class AutofillKeyboardAccessoryBridge implements AutofillKeyboardAccessoryDelegate {
+    private long mNativeAutofillKeyboardAccessory;
+    private AutofillKeyboardAccessory mAccessoryView;
+
+    private AutofillKeyboardAccessoryBridge() {
+    }
+
+    @CalledByNative
+    private static AutofillKeyboardAccessoryBridge create() {
+        return new AutofillKeyboardAccessoryBridge();
+    }
+
+    @Override
+    public void dismissed() {
+        if (mNativeAutofillKeyboardAccessory == 0) return;
+        nativeViewDismissed(mNativeAutofillKeyboardAccessory);
+    }
+
+    @Override
+    public void suggestionSelected(int listIndex) {
+        if (mNativeAutofillKeyboardAccessory == 0) return;
+        nativeSuggestionSelected(mNativeAutofillKeyboardAccessory, listIndex);
+    }
+
+    /**
+     * Initializes this object.
+     * This function should be called at most one time.
+     * @param nativeAutofillKeyboardAccessory Handle to the native counterpart.
+     * @param windowAndroid The window on which to show the suggestions.
+     */
+    @CalledByNative
+    private void init(long nativeAutofillKeyboardAccessory, WindowAndroid windowAndroid) {
+        if (windowAndroid == null || windowAndroid.getActivity().get() == null) {
+            nativeViewDismissed(nativeAutofillKeyboardAccessory);
+            dismissed();
+            return;
+        }
+
+        mNativeAutofillKeyboardAccessory = nativeAutofillKeyboardAccessory;
+        mAccessoryView = new AutofillKeyboardAccessory(windowAndroid, this);
+    }
+
+    /**
+     * Clears the reference to the native view.
+     */
+    @CalledByNative
+    private void resetNativeViewPointer() {
+        mNativeAutofillKeyboardAccessory = 0;
+    }
+
+    /**
+     * Hides the Autofill view.
+     */
+    @CalledByNative
+    private void dismiss() {
+        if (mAccessoryView != null) mAccessoryView.dismiss();
+    }
+
+    /**
+     * Shows an Autofill view with specified suggestions.
+     * @param suggestions Autofill suggestions to be displayed.
+     */
+    @CalledByNative
+    private void show(AutofillSuggestion[] suggestions, boolean isRtl) {
+        if (mAccessoryView != null) mAccessoryView.showWithSuggestions(suggestions, isRtl);
+    }
+
+    // Helper methods for AutofillSuggestion. These are copied from AutofillPopupBridge (which
+    // should
+    // eventually disappear).
+
+    @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 label First line of the suggestion.
+     * @param sublabel Second line of the suggestion.
+     * @param iconId The resource ID for the icon associated with the suggestion, or 0 for no icon.
+     * @param suggestionId Identifier for the suggestion type.
+     */
+    @CalledByNative
+    private static void addToAutofillSuggestionArray(AutofillSuggestion[] array, int index,
+            String label, String sublabel, int iconId, int suggestionId) {
+        int drawableId = iconId == 0 ? DropdownItem.NO_ICON : ResourceId.mapToDrawableId(iconId);
+        array[index] = new AutofillSuggestion(label, sublabel, drawableId, suggestionId);
+    }
+
+    private native void nativeViewDismissed(long nativeAutofillKeyboardAccessoryView);
+    private native void nativeSuggestionSelected(
+            long nativeAutofillKeyboardAccessoryView, int listIndex);
+}