Allow copying and viewing account credentials in PasswordEntryEditor

chrome/android/java/src/org/chromium/chrome/browser/preferences/password/PasswordEntryEditor.java

Index: chrome/android/java/src/org/chromium/chrome/browser/preferences/password/PasswordEntryEditor.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/preferences/password/PasswordEntryEditor.java b/chrome/android/java/src/org/chromium/chrome/browser/preferences/password/PasswordEntryEditor.java
index fc894c30947f1f7215739bd6dcf50b32c1053267..19589780d75e14a8f00d7db42d6c28222667a75d 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/preferences/password/PasswordEntryEditor.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/preferences/password/PasswordEntryEditor.java
@@ -5,7 +5,15 @@
 package org.chromium.chrome.browser.preferences.password;
 
 import android.app.Fragment;
+import android.app.FragmentManager;
+import android.app.FragmentTransaction;
+import android.app.KeyguardManager;
+import android.content.ClipData;
+import android.content.ClipboardManager;
+import android.content.Context;
+import android.os.Build;
 import android.os.Bundle;
+import android.text.InputType;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuInflater;
@@ -13,12 +21,15 @@ import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.Button;
+import android.widget.ImageButton;
 import android.widget.TextView;
 
+import org.chromium.base.VisibleForTesting;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.ChromeFeatureList;
 import org.chromium.chrome.browser.PasswordUIView;
 import org.chromium.chrome.browser.PasswordUIView.PasswordListObserver;
+import org.chromium.ui.widget.Toast;
 
 /**
  * Password entry editor that allows to view and delete passwords stored in Chrome.
@@ -32,8 +43,23 @@ public class PasswordEntryEditor extends Fragment {
     // If false this represents a saved name/password.
     private boolean mException;
 
+    @VisibleForTesting
     public static final String VIEW_PASSWORDS = "view-passwords";
 
+    private static final int VALID_REAUTHENTICATION_TIME_INTERVAL_MILLIS = 60000;
+
+    private ClipboardManager mClipboard;
+
+    private KeyguardManager mKeyguardManager;
+
+    private Bundle mExtras;
+
+    private View mView;
+
+    private boolean mViewButtonPressed;
+
+    private boolean mCopyButtonPressed;
+
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -46,36 +72,79 @@ public class PasswordEntryEditor extends Fragment {
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
             Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        View v;
-        if (ChromeFeatureList.isEnabled(VIEW_PASSWORDS)) {
-            v = inflater.inflate(R.layout.password_entry_editor_interactive, container, false);
+        if (shouldDisplayInteractivePasswordEntryEditor()) {
+            mView = inflater.inflate(R.layout.password_entry_editor_interactive, container, false);
         } else {
-            v = inflater.inflate(R.layout.password_entry_editor, container, false);
+            mView = inflater.inflate(R.layout.password_entry_editor, container, false);
         }
         getActivity().setTitle(R.string.password_entry_editor_title);
-
+        mClipboard = (ClipboardManager) getActivity().getApplicationContext()
+            .getSystemService(Context.CLIPBOARD_SERVICE);
         // Extras are set on this intent in class SavePasswordsPreferences.
-        Bundle extras = getArguments();
-        assert extras != null;
-        mID = extras.getInt(SavePasswordsPreferences.PASSWORD_LIST_ID);
+        mExtras = getArguments();
+        mID = mExtras.getInt(SavePasswordsPreferences.PASSWORD_LIST_ID);
         String name = null;
-        if (extras.containsKey(SavePasswordsPreferences.PASSWORD_LIST_NAME)) {
-            name = extras.getString(SavePasswordsPreferences.PASSWORD_LIST_NAME);
+        if (mExtras.containsKey(SavePasswordsPreferences.PASSWORD_LIST_NAME)) {
+            name = mExtras.getString(SavePasswordsPreferences.PASSWORD_LIST_NAME);
         }
-        TextView nameView = (TextView) v.findViewById(R.id.password_entry_editor_name);
+        TextView nameView = (TextView) mView.findViewById(R.id.password_entry_editor_name);
         if (name != null) {
             nameView.setText(name);
         } else {
             nameView.setText(R.string.section_saved_passwords_exceptions);
             mException = true;
         }
-        String url = extras.getString(SavePasswordsPreferences.PASSWORD_LIST_URL);
-        TextView urlView = (TextView) v.findViewById(R.id.password_entry_editor_url);
+        String url = mExtras.getString(SavePasswordsPreferences.PASSWORD_LIST_URL);
+        TextView urlView = (TextView) mView.findViewById(R.id.password_entry_editor_url);
         urlView.setText(url);
-        if (!ChromeFeatureList.isEnabled(VIEW_PASSWORDS)) {
-            hookupCancelDeleteButtons(v);
+        if (shouldDisplayInteractivePasswordEntryEditor()) {
+            mKeyguardManager = (KeyguardManager) getActivity()
+                    .getApplicationContext().getSystemService(Context.KEYGUARD_SERVICE);
+            ImageButton copyPasswordButton = (ImageButton) mView.findViewById(
+                    R.id.password_entry_editor_copy_password);
+            ImageButton viewPasswordButton = (ImageButton) mView.findViewById(
+                    R.id.password_entry_editor_view_password);
+            String password = mExtras.getString(SavePasswordsPreferences.PASSWORD_LIST_PASSWORD);
+            TextView passwordView = (TextView)
+                      mView.findViewById(R.id.password_entry_editor_password);
+            passwordView.setText(password);
+            passwordView.setInputType(InputType.TYPE_CLASS_TEXT
+                      | InputType.TYPE_TEXT_VARIATION_PASSWORD);
+            hookupPasswordButtons();
+            hookupCopyUsernameButton();
+            hookupCopySiteButton();
+        } else {
+            hookupCancelDeleteButtons();
         }
-        return v;
+        return mView;
+    }
+
+    public boolean shouldDisplayInteractivePasswordEntryEditor() {
+        return ChromeFeatureList.isEnabled(VIEW_PASSWORDS)
+                && Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP;
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+
+        if (mViewButtonPressed && authenticationStillValid()) {
+            displayPassword();
+        }
+
+        if (mCopyButtonPressed && authenticationStillValid()) {
+            copyPassword();
+        }
+    }
+
+    /**
+     * Verifies if authentication is still valid (the user authenticated less than 60 seconds ago
+     * and the startTime is not equal to 0.
+     */
+    private boolean authenticationStillValid() {
+        return SavePasswordsPreferences.getLastReauthTimeMillis() != 0
+                && System.currentTimeMillis() - SavePasswordsPreferences.getLastReauthTimeMillis()
+                        < VALID_REAUTHENTICATION_TIME_INTERVAL_MILLIS;
     }
 
     @Override
@@ -120,24 +189,132 @@ public class PasswordEntryEditor extends Fragment {
         passwordUIView.updatePasswordLists();
     }
 
-    private void hookupCancelDeleteButtons(View v) {
-        final Button deleteButton = (Button) v.findViewById(R.id.password_entry_editor_delete);
-        final Button cancelButton = (Button) v.findViewById(R.id.password_entry_editor_cancel);
+    private void hookupCancelDeleteButtons() {
+        final Button deleteButton = (Button) mView.findViewById(R.id.password_entry_editor_delete);
+        final Button cancelButton = (Button) mView.findViewById(R.id.password_entry_editor_cancel);
 
         deleteButton.setOnClickListener(new View.OnClickListener() {
-                @Override
-                public void onClick(View v) {
-                    removeItem();
-                    deleteButton.setEnabled(false);
-                    cancelButton.setEnabled(false);
-                }
-            });
+            @Override
+            public void onClick(View v) {
+                removeItem();
+                deleteButton.setEnabled(false);
+                cancelButton.setEnabled(false);
+            }
+        });
 
         cancelButton.setOnClickListener(new View.OnClickListener() {
-                @Override
-                public void onClick(View v) {
-                    getActivity().finish();
+            @Override
+            public void onClick(View v) {
+                getActivity().finish();
+            }
+        });
+    }
+
+    private void hookupCopyUsernameButton() {
+        final ImageButton copyUsernameButton = (ImageButton) mView.findViewById(
+                R.id.password_entry_editor_copy_username);
+        copyUsernameButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                ClipData clip = ClipData.newPlainText("username",
+                        getArguments().getString(SavePasswordsPreferences.PASSWORD_LIST_NAME));
+                mClipboard.setPrimaryClip(clip);
+                Toast.makeText(getActivity().getApplicationContext(),
+                        R.string.password_entry_editor_username_copied_into_clipboard,
+                                Toast.LENGTH_SHORT).show();
+            }
+        });
+    }
+
+    private void hookupCopySiteButton() {
+        final ImageButton copySiteButton = (ImageButton) mView.findViewById(
+                R.id.password_entry_editor_copy_site);
+        copySiteButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                ClipData clip = ClipData.newPlainText("site",
+                        getArguments().getString(SavePasswordsPreferences.PASSWORD_LIST_URL));
+                mClipboard.setPrimaryClip(clip);
+                Toast.makeText(getActivity().getApplicationContext(),
+                        R.string.password_entry_editor_site_copied_into_clipboard,
+                                Toast.LENGTH_SHORT).show();
+            }
+        });
+    }
+
+    private void displayPassword() {
+        ImageButton viewPasswordButton = (ImageButton) mView.findViewById(
+                R.id.password_entry_editor_view_password);
+        TextView passwordView = (TextView) mView.findViewById(
+                R.id.password_entry_editor_password);
+        passwordView.setText(mExtras.getString(
+                SavePasswordsPreferences.PASSWORD_LIST_PASSWORD));
+        passwordView.setInputType(InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
+        viewPasswordButton.setImageResource(R.drawable.ic_visibility_off);
+    }
+
+    private void copyPassword() {
+        ClipData clip = ClipData.newPlainText("password",
+                getArguments().getString(
+                        SavePasswordsPreferences.PASSWORD_LIST_PASSWORD));
+        mClipboard.setPrimaryClip(clip);
+        Toast.makeText(getActivity().getApplicationContext(),
+                R.string.password_entry_editor_password_copied_into_clipboard,
+                        Toast.LENGTH_SHORT).show();
+    }
+
+    private void displayReauthenticationFragment() {
+        Fragment passwordReauthentication = new PasswordReauthenticationFragment();
+        FragmentManager fragmentManager = getFragmentManager();
+        FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
+        fragmentTransaction.replace(R.id.password_entry_editor_interactive,
+                passwordReauthentication);
+        fragmentTransaction.addToBackStack(null);
+        fragmentTransaction.commit();
+    }
+
+    private void hookupPasswordButtons() {
+        final ImageButton copyPasswordButton = (ImageButton) mView.findViewById(
+                R.id.password_entry_editor_copy_password);
+        final ImageButton viewPasswordButton = (ImageButton) mView.findViewById(
+                R.id.password_entry_editor_view_password);
+        copyPasswordButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                if (!mKeyguardManager.isKeyguardSecure()) {
+                    Toast.makeText(getActivity().getApplicationContext(),
+                            R.string.password_entry_editor_set_lock_screen,
+                                    Toast.LENGTH_LONG).show();
+                } else if (authenticationStillValid()) {
+                    copyPassword();
+                } else {
+                    mCopyButtonPressed = true;
+                    displayReauthenticationFragment();
+                }
+            }
+        });
+        viewPasswordButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                TextView passwordView = (TextView) mView.findViewById(
+                        R.id.password_entry_editor_password);
+                if (!mKeyguardManager.isKeyguardSecure()) {
+                    Toast.makeText(getActivity().getApplicationContext(),
+                            R.string.password_entry_editor_set_lock_screen,
+                                     Toast.LENGTH_LONG).show();
+                } else if (passwordView.getInputType()
+                        == InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) {
+                    viewPasswordButton.setImageResource(R.drawable.ic_visibility);
+                    passwordView.setInputType(InputType.TYPE_CLASS_TEXT
+                            | InputType.TYPE_TEXT_VARIATION_PASSWORD);
+                } else if (authenticationStillValid()) {
+                    displayPassword();
+                } else {
+                    mViewButtonPressed = true;
+                    displayReauthenticationFragment();
                 }
-            });
+            }
+        });
     }
+
 }