Initial UI structure for autofill dialog

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

+// Copyright (c) 2013 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 java.util.ArrayList;
+import java.util.List;
+
+import android.app.AlertDialog;
+import android.content.Context;
+import android.content.DialogInterface;
+
+import android.content.DialogInterface.OnClickListener;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.ScrollView;
+import android.widget.AdapterView.OnItemSelectedListener;
+
+import org.chromium.chrome.R;
+
+/**
+ * This is the dialog that will act as the java side controller between the
+ * AutofillDialogGlue object and the UI elements on the page. It contains the
+ * title and the content views and relays messages from the backend to them.
+ */
+public class AutofillDialog extends AlertDialog
+        implements OnClickListener, OnItemSelectedListener {
+    private AutofillDialogContentView mContentView;
+    private AutofillDialogTitleView mTitleView;
+    private boolean mWillDismiss = false;
+
+    protected AutofillDialog(Context context) {
+        super(context);
+
+        addTitleWithPlaceholders();
+
+        ScrollView scroll = new ScrollView(context);
+        mContentView = (AutofillDialogContentView) getLayoutInflater().
+                inflate(R.layout.autofill_dialog_content, null);
+        scroll.addView(mContentView);
+        setView(scroll);
+
+        setButton(AlertDialog.BUTTON_NEGATIVE,
+                getContext().getResources().getString(R.string.autofill_negative_button), this);
+        setButton(AlertDialog.BUTTON_POSITIVE,
+                getContext().getResources().getString(R.string.autofill_positive_button), this);
+
+        mContentView.setOnItemSelectedListener(this);
+    }
+
+    @Override
+    public void dismiss() {
+        if (mWillDismiss) super.dismiss();
+    }
+
+    @Override
+    public void onClick(DialogInterface dialog, int which) {
+        if (mContentView.getCurrentLayout() == AutofillDialogContentView.LAYOUT_STEADY) {
+            mWillDismiss = true;
+            return;
+        }
+
+        mContentView.changeLayoutTo(AutofillDialogContentView.LAYOUT_STEADY);
+        getButton(BUTTON_POSITIVE).setText(R.string.autofill_positive_button);
+        mWillDismiss = false;
+    }
+
+    @Override
+    public void onItemSelected(AdapterView<?> spinner, View view, int position,
+            long id) {
+        if (spinner.getId() == R.id.accounts_spinner) {
+            mContentView.changeLayoutTo(AutofillDialogContentView.LAYOUT_FETCHING);
+            return;
+        }
+
+        if (!mContentView.selectionShouldChangeLayout(spinner, position) ||
+                mContentView.getCurrentLayout() != AutofillDialogContentView.LAYOUT_STEADY) {
+            return;
+        }
+
+        int newLayout = spinner.getId() == R.id.address_spinner ?
+                AutofillDialogContentView.LAYOUT_EDITING_SHIPPING :
+                        AutofillDialogContentView.LAYOUT_EDITING_BILLING;
+        mContentView.changeLayoutTo(newLayout);
+        spinner.setSelection(0);
+        getButton(BUTTON_POSITIVE).setText(R.string.autofill_positive_button_editing);
+    }
+
+    @Override
+    public void onNothingSelected(AdapterView<?> spinner) {
+    }
+
+    //TODO(yusufo): Remove this. updateAccountChooserAndAddTitle will get initiated from glue.
+    private void addTitleWithPlaceholders() {
+        List<String> accounts = new ArrayList<String>();
+        accounts.add("placeholder@gmail.com");
+        accounts.add("placeholder@google.com");
+        updateAccountChooserAndAddTitle(accounts);
+    }
+
+    /**
+     * Update account chooser dropdown with given accounts and create the title view if needed.
+     * @param accounts The accounts to be used for the dropdown.
+     */
+    public void updateAccountChooserAndAddTitle(List<String> accounts) {
+        if (mTitleView == null) {
+            mTitleView = new AutofillDialogTitleView(getContext(), accounts);
+            mTitleView.setOnItemSelectedListener(this);
+            setCustomTitle(mTitleView);
+            return;
+        }
+        // TODO(yusufo): Add code to update accounts after title is created.
+    }
+}