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      1 /*
      2  * Copyright 2010, The Android Open Source Project
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  *  * Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  *  * Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "PackageNotifier.h"
     28 
     29 #if ENABLE(APPLICATION_INSTALLED)
     30 
     31 #include <wtf/Assertions.h>
     32 #include <wtf/StdLibExtras.h>
     33 
     34 namespace WebCore {
     35 
     36 PackageNotifier::PackageNotifier()
     37         : m_onResultAvailable(0), m_isInitialized(false), m_timer(this, &PackageNotifier::timerFired)  { }
     38 
     39 void PackageNotifier::setOnResultAvailable(Callback callback)
     40 {
     41     m_onResultAvailable = callback;
     42 }
     43 
     44 void PackageNotifier::addPackageNames(const HashSet<String>& packageNames)
     45 {
     46     if (!m_isInitialized)
     47         m_isInitialized = true;
     48 
     49     typedef HashSet<String>::const_iterator NamesIterator;
     50     for (NamesIterator iter = packageNames.begin(); iter != packageNames.end(); ++iter)
     51         m_packageNames.add(*iter);
     52 
     53     if (m_onResultAvailable)
     54         m_onResultAvailable();
     55 }
     56 
     57 void PackageNotifier::addPackageName(const String& packageName)
     58 {
     59     ASSERT(m_isInitialized);
     60     m_packageNames.add(packageName);
     61 }
     62 
     63 void PackageNotifier::removePackageName(const String& packageName)
     64 {
     65     ASSERT(m_isInitialized);
     66     m_packageNames.remove(packageName);
     67 }
     68 
     69 void PackageNotifier::requestPackageResult()
     70 {
     71     if (!m_isInitialized || m_timer.isActive())
     72         return;
     73 
     74     m_timer.startOneShot(0);
     75 }
     76 
     77 void PackageNotifier::timerFired(Timer<PackageNotifier>*)
     78 {
     79     m_timer.stop();
     80     if (m_onResultAvailable)
     81         m_onResultAvailable();
     82 }
     83 
     84 bool PackageNotifier::isPackageInstalled(const String& packageName)
     85 {
     86     return m_packageNames.contains(packageName);
     87 }
     88 
     89 PackageNotifier& packageNotifier()
     90 {
     91     AtomicallyInitializedStatic(PackageNotifier*, packageNotifier = new PackageNotifier);
     92     return *packageNotifier;
     93 }
     94 
     95 }
     96 
     97 #endif // ENABLE(APPLICATION_INSTALLED)
     98