Shows snackbar in translate infobar, after certain user actions.

chrome/android/java/src/org/chromium/chrome/browser/infobar/TranslateCompactInfoBar.java

 // Copyright 2017 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.infobar;
 
 import android.support.design.widget.TabLayout;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.widget.LinearLayout;
 
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.infobar.translate.TranslateMenu;
 import org.chromium.chrome.browser.infobar.translate.TranslateMenuHelper;
 import org.chromium.chrome.browser.infobar.translate.TranslateTabLayout;
+import org.chromium.chrome.browser.snackbar.Snackbar;
 
 /**
  * Java version of the compcat translate infobar
  */
 class TranslateCompactInfoBar extends InfoBar
         implements TabLayout.OnTabSelectedListener, TranslateMenuHelper.TranslateMenuListener {
     private static final int SOURCE_TAB_INDEX = 0;
     private static final int TARGET_TAB_INDEX = 1;
 
     private final TranslateOptions mOptions;
 
     private long mNativeTranslateInfoBarPtr;
     private TranslateTabLayout mTabLayout;
 
     private TranslateMenuHelper mMenuHelper;
 
     @CalledByNative
     private static InfoBar create(String sourceLanguageCode, String targetLanguageCode,
             String[] languages, String[] codes) {
         return new TranslateCompactInfoBar(
                 sourceLanguageCode, targetLanguageCode, languages, codes);
     }
 
     @CalledByNative
     private void showSnackbar(int snackbarType, int nativePtr) {
-        // TODO(ramyasharma): Show snackbar.
+        if (snackbarType == TranslateSnackbarType.NEVER_TRANSLATE) {
+            getSnackbarManager().showSnackbar(createSnackbar(
+                    getContext().getString(R.string.translate_snackbar_language_never,
+                            mOptions.sourceLanguageName()),
+                    Snackbar.UMA_TRANSLATE_NEVER));
+        } else if (snackbarType == TranslateSnackbarType.ALWAYS_TRANSLATE) {
+            getSnackbarManager().showSnackbar(createSnackbar(
+                    getContext().getString(R.string.translate_snackbar_always_translate,
+                            mOptions.sourceLanguageName(), mOptions.targetLanguageName()),
+                    Snackbar.UMA_TRANSLATE_ALWAYS));
+        } else if (snackbarType == TranslateSnackbarType.NEVER_TRANSLATE_SITE) {
+            getSnackbarManager().showSnackbar(
+                    createSnackbar(getContext().getString(R.string.translate_snackbar_site_never),
+                            Snackbar.UMA_TRANSLATE_NEVER_SITE));
+        }
     }
 
     TranslateCompactInfoBar(String sourceLanguageCode, String targetLanguageCode,
             String[] languages, String[] codes) {
         super(R.drawable.infobar_translate, null, null);
         // TODO(googleo): Set correct values for the last 2.
         mOptions = TranslateOptions.create(
                 sourceLanguageCode, targetLanguageCode, languages, codes, false, false);
     }
 
@@ skipping 129 matching lines @@
         // Reset source code in both UI and native.
         if (mOptions.setSourceLanguage(code)) {
             nativeApplyStringTranslateOption(
                     mNativeTranslateInfoBarPtr, TranslateOption.SOURCE_CODE, code);
             // Adjust UI.
             mTabLayout.replaceTabTitle(SOURCE_TAB_INDEX, mOptions.getRepresentationFromCode(code));
             startTranslating(mTabLayout.getSelectedTabPosition());
         }
     }
 
+    private Snackbar createSnackbar(String title, int type) {
+        return Snackbar
+                .make(title, new TranslateSnackbarController(), Snackbar.TYPE_NOTIFICATION, type)
+                .setSingleLine(false);
+    }
+
     private native void nativeApplyStringTranslateOption(
             long nativeTranslateCompactInfoBar, int option, String value);
     private native void nativeApplyBoolTranslateOption(
             long nativeTranslateCompactInfoBar, int option, boolean value);
     private native void nativeShowSnackbar(long nativeTranslateCompactInfoBar);
 }