Week picker for android

content/public/android/java/src/org/chromium/content/browser/input/TwoFieldDatePickerDialog.java

Index: content/public/android/java/src/org/chromium/content/browser/input/TwoFieldDatePickerDialog.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/input/TwoFieldDatePickerDialog.java b/content/public/android/java/src/org/chromium/content/browser/input/TwoFieldDatePickerDialog.java
new file mode 100644
index 0000000000000000000000000000000000000000..f78f77262b0fb9dabb73c5d72edf9d45d13df105
--- /dev/null
+++ b/content/public/android/java/src/org/chromium/content/browser/input/TwoFieldDatePickerDialog.java
@@ -0,0 +1,124 @@
+// Copyright (c) 2012 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.content.browser.input;
+
+import android.app.AlertDialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.DialogInterface.OnClickListener;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
+
+import org.chromium.content.browser.input.TwoFieldDatePicker.OnMonthOrWeekChangedListener;
+import org.chromium.content.R;
+
+public abstract class TwoFieldDatePickerDialog extends AlertDialog implements OnClickListener,
+        OnMonthOrWeekChangedListener {
+
+    private static final String YEAR = "year";
+    private static final String POSITION_IN_YEAR = "position_in_year";
+
+    protected final TwoFieldDatePicker mPicker;
+    protected final  OnValueSetListener mCallBack;
+
+    /**
+     * The callback used to indicate the user is done filling in the date.
+     */
+    public interface OnValueSetListener {
+
+        /**
+         * @param year The year that was set.
+         * @param positionInYear The week in year.
+         *  with {@link java.util.Calendar}.
+         */
+        void onValueSet(int year, int positionInYear);
+     }
+
+    /**
+     * @param context The context the dialog is to run in.
+     * @param callBack How the parent is notified that the date is set.
+     * @param year The initial year of the dialog.
+     * @param weekOfYear The initial week of the dialog.
+     */
+    public TwoFieldDatePickerDialog(Context context,
+             OnValueSetListener callBack,
+            int year,
+            int positionInYear,
+            long minValue,
+            long maxValue) {
+        this(context, 0, callBack, year, positionInYear, minValue, maxValue);
+    }
+
+    /**
+     * @param context The context the dialog is to run in.
+     * @param theme the theme to apply to this dialog
+     * @param callBack How the parent is notified that the date is set.
+     * @param year The initial year of the dialog.
+     * @param weekOfYear The initial week of the dialog.
+     */
+    public TwoFieldDatePickerDialog(Context context,
+            int theme,
+             OnValueSetListener callBack,
+            int year,
+            int positionInYear,
+            long minValue,
+            long maxValue) {
+        super(context, theme);
+
+        mCallBack = callBack;
+
+        setButton(BUTTON_POSITIVE, context.getText(
+                R.string.date_picker_dialog_set), this);
+        setButton(BUTTON_NEGATIVE, context.getText(android.R.string.cancel),
+                (OnClickListener) null);
+        setIcon(0);
+
+        mPicker = createPicker(context, minValue, maxValue);
+        setView(mPicker);
+        mPicker.init(year, positionInYear, this);
+    }
+
+    protected TwoFieldDatePicker createPicker(Context context, long minValue, long maxValue) {
+        return null;
+    }
+
+    @Override
+    public void onClick(DialogInterface dialog, int which) {
+        tryNotifyDateSet();
+    }
+
+    /**
+     * Notifies the listener, if such, that a date has been set.
+     */
+    protected abstract void tryNotifyDateSet();
+
+    @Override
+    protected void onStop() {
+        if (Build.VERSION.SDK_INT >= 16) {
+            // The default behavior of dialogs changed in JellyBean and onwards.
+            // Dismissing a dialog (by pressing back for example)
+            // applies the chosen date. This code is added here so that the custom
+            // pickers behave the same as the internal DatePickerDialog.
+            tryNotifyDateSet();
+        }
+        super.onStop();
+    }
+
+    @Override
+    public void onMonthOrWeekChanged(TwoFieldDatePicker view, int year, int positionInYear) {
+        mPicker.init(year, positionInYear, null);
+    }
+
+    /**
+     * Sets the current date.
+     *
+     * @param year The date week year.
+     * @param weekOfYear The date week.
+     */
+    public void updateDate(int year, int weekOfYear) {
+        mPicker.updateDate(year, weekOfYear);
+    }
+}