[android] Password generation UI for android.

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

Index: chrome/android/java/src/org/chromium/chrome/browser/autofill/PasswordGenerationPopup.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/autofill/PasswordGenerationPopup.java b/chrome/android/java/src/org/chromium/chrome/browser/autofill/PasswordGenerationPopup.java
new file mode 100644
index 0000000000000000000000000000000000000000..dd5018689daec3f468c106045fa1b8562321d911
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+++ b/chrome/android/java/src/org/chromium/chrome/browser/autofill/PasswordGenerationPopup.java
@@ -0,0 +1,107 @@
+// 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 android.content.Context;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.PopupWindow;
+
+import org.chromium.ui.DropdownPopupWindow;
+import org.chromium.ui.base.ViewAndroidDelegate;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * The password generation popup that suggests an auto-generated password.
+ */
+public class PasswordGenerationPopup extends DropdownPopupWindow
+        implements AdapterView.OnItemClickListener, PopupWindow.OnDismissListener {
+    private final Context mContext;
+    private final Delegate mDelegate;
+
+    /**
+     * Handles touch interaction with the password generation popup.
+     */
+    public interface Delegate {
+        /**
+         * Opens the "saved passwords" link.
+         */
+        public void onSavedPasswordsLinkClicked();
+
+        /**
+         * Informs the controller that the popup was hidden.
+         */
+        public void onDismissed();
+
+        /**
+         * Handles the selection of the suggested password in the popup.
+         */
+        public void onPasswordSelected();
+    }
+
+    /**
+     * UI shows a generated password suggestion.
+     */
+    public static final int SUGGESTION = 0;
+
+    /**
+     * UI shows an explanation about storing passwords in Chrome.
+     */
+    public static final int EXPLANATION = 1;
+
+    /**
+     * Builds the password generation popup with data and behavior determined by the delegate.
+     * @param context Android context.
+     * @param viewAndroidDelegate View delegate used to add and remove views.
+     * @param delegate Describes data in the popup and handles touch interactions.
+     */
+    public PasswordGenerationPopup(Context context, ViewAndroidDelegate viewAndroidDelegate,
+            Delegate delegate) {
+        super(context, viewAndroidDelegate);
+        mContext = context;
+        mDelegate = delegate;
+
+        setOnItemClickListener(this);
+        setOnDismissListener(this);
+    }
+
+    /**
+     * Shows the password generation popup. The popup will be in either suggestion or editing mode.
+     * @param passwordGeneration Describes the state of the popup to show.
+     */
+    public void show(PasswordGeneration passwordGeneration) {
+        List<Integer> views = new ArrayList<Integer>();
+        if (passwordGeneration.isPasswordDisplayed()) {
+            views.add(SUGGESTION);
+        }
+        views.add(EXPLANATION);
+        setAdapter(new PasswordGenerationAdapter(mContext, views, passwordGeneration, mDelegate));
+        setRtl(passwordGeneration.isRtl());
+        show();
+    }
+
+    /**
+     * Handles clicks on popup list elements. Only suggestion element is enabled. Clicking on the
+     * suggestion element notifies the delegate that the suggested password was selected.
+     * @param parent The parent view where the click happened.
+     * @param view The view that was provided by the adapter that was clicked.
+     * @param position The position of the view in the adapter.
+     * @param id The row id of the clicked element.
+     */
+    @Override
+    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+        mDelegate.onPasswordSelected();
+    }
+
+    /**
+     * Handles dismissing the popup window. The delegate is notified to destroy the controller.
+     */
+    @Override
+    public void onDismiss() {
+        mDelegate.onDismissed();
+    }
+}