[WebLayer] Fix action mode popup when selecting text

This enables the action mode bar, which has the "Copy", "Select", "Share
all" and "Web search" options when text is selected.

Change-Id: Id91ce30e7f389d9105626f1f463fa687751dfa65
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1900570
Commit-Queue: Clark DuVall <cduvall@chromium.org>
Reviewed-by: Scott Violet <sky@chromium.org>
Cr-Commit-Position: refs/heads/master@{#712858}

weblayer/browser/java/BUILD.gn

@@ -33,6 +33,7 @@ android_library("java") {
     "org/chromium/weblayer_private/ContentView.java",
     "org/chromium/weblayer_private/ContentViewRenderView.java",
     "org/chromium/weblayer_private/DownloadCallbackProxy.java",
+    "org/chromium/weblayer_private/ActionModeCallback.java",
     "org/chromium/weblayer_private/FullscreenCallbackProxy.java",
     "org/chromium/weblayer_private/NavigationControllerImpl.java",
     "org/chromium/weblayer_private/NavigationImpl.java",

weblayer/browser/java/org/chromium/weblayer_private/ActionModeCallback.java

+// Copyright 2019 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.weblayer_private;
+
+import android.app.SearchManager;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.view.ActionMode;
+import android.view.Menu;
+import android.view.MenuItem;
+
+import org.chromium.base.PackageManagerUtils;
+import org.chromium.content_public.browser.ActionModeCallbackHelper;
+import org.chromium.content_public.browser.SelectionPopupController;
+import org.chromium.content_public.browser.WebContents;
+
+/**
+ * A class that handles selection action mode for WebLayer.
+ */
+public final class ActionModeCallback implements ActionMode.Callback {
+    private final ActionModeCallbackHelper mHelper;
+
+    public ActionModeCallback(WebContents webContents) {
+        mHelper =
+                SelectionPopupController.fromWebContents(webContents).getActionModeCallbackHelper();
+    }
+
+    @Override
+    public final boolean onCreateActionMode(ActionMode mode, Menu menu) {
+        int allowedActionModes = ActionModeCallbackHelper.MENU_ITEM_PROCESS_TEXT
+                | ActionModeCallbackHelper.MENU_ITEM_SHARE;
+        if (isWebSearchAvailable()) {
+            allowedActionModes |= ActionModeCallbackHelper.MENU_ITEM_WEB_SEARCH;
+        }
+        mHelper.setAllowedMenuItems(allowedActionModes);
+        mHelper.onCreateActionMode(mode, menu);
+        return true;
+    }
+
+    private boolean isWebSearchAvailable() {
+        Intent intent = new Intent(Intent.ACTION_WEB_SEARCH);
+        intent.putExtra(SearchManager.EXTRA_NEW_SEARCH, true);
+        return !PackageManagerUtils.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY)
+                        .isEmpty();
+    }
+
+    @Override
+    public final boolean onPrepareActionMode(ActionMode mode, Menu menu) {
+        return mHelper.onPrepareActionMode(mode, menu);
+    }
+
+    @Override
+    public final boolean onActionItemClicked(ActionMode mode, MenuItem item) {
+        return mHelper.onActionItemClicked(mode, item);
+    }
+
+    @Override
+    public final void onDestroyActionMode(ActionMode mode) {
+        mHelper.onDestroyActionMode();
+    }
+}

weblayer/browser/java/org/chromium/weblayer_private/BrowserControllerImpl.java

@@ -12,6 +12,7 @@ import org.chromium.base.Callback;
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.JNINamespace;
 import org.chromium.base.annotations.NativeMethods;
+import org.chromium.content_public.browser.SelectionPopupController;
 import org.chromium.content_public.browser.ViewEventSink;
 import org.chromium.content_public.browser.WebContents;
 import org.chromium.ui.base.ViewAndroidDelegate;
@@ -120,6 +121,8 @@ public final class BrowserControllerImpl extends IBrowserController.Stub {
         mFragment = fragment;
         mWebContents.setTopLevelNativeWindow(fragment.getWindowAndroid());
         mViewAndroidDelegate.setContainerView(fragment.getViewAndroidDelegateContainerView());
+        SelectionPopupController.fromWebContents(mWebContents)
+                .setActionModeCallback(new ActionModeCallback(mWebContents));
     }
 
     public BrowserFragmentControllerImpl getFragment() {