1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 package org.chromium.chrome.browser.printing; 6 7 import android.text.TextUtils; 8 9 import org.chromium.chrome.browser.Tab; 10 import org.chromium.printing.Printable; 11 12 import java.lang.ref.WeakReference; 13 14 /** 15 * Wraps printing related functionality of a {@link Tab} object. 16 * 17 * This class doesn't have any lifetime expectations with regards to Tab, since we keep a weak 18 * reference. 19 */ 20 public class TabPrinter implements Printable { 21 private static String sDefaultTitle; 22 23 private final WeakReference<Tab> mTab; 24 TabPrinter(Tab tab)25 public TabPrinter(Tab tab) { 26 mTab = new WeakReference<Tab>(tab); 27 } 28 setDefaultTitle(String defaultTitle)29 public static void setDefaultTitle(String defaultTitle) { 30 sDefaultTitle = defaultTitle; 31 } 32 33 @Override print()34 public boolean print() { 35 Tab tab = mTab.get(); 36 return tab != null && tab.print(); 37 } 38 39 @Override getTitle()40 public String getTitle() { 41 Tab tab = mTab.get(); 42 if (tab == null) return sDefaultTitle; 43 44 String title = tab.getTitle(); 45 if (!TextUtils.isEmpty(title)) return title; 46 47 String url = tab.getUrl(); 48 if (!TextUtils.isEmpty(url)) return url; 49 50 return sDefaultTitle; 51 } 52 } 53