src/apps/haikudepot/ui/MessagePackageListener.cpp

   1 /*
   2  * Copyright 2013-2014, Stephan Aßmus <superstippi@gmx.de>.
   3  * All rights reserved. Distributed under the terms of the MIT License.
   4  */
   5
   6
   7 #include "MessagePackageListener.h"
   8
   9 #include <Messenger.h>
  10 #include <View.h>
  11
  12 #include "PackageInfo.h"
  13
  14
  15 // #pragma mark - MessagePackageListener
  16
  17
  18 MessagePackageListener::MessagePackageListener(BHandler* target)
  19         :
  20         fTarget(target),
  21         fChangesMask(0xffffffff)
  22 {
  23 }
  24
  25
  26 MessagePackageListener::~MessagePackageListener()
  27 {
  28 }
  29
  30
  31 void
  32 MessagePackageListener::PackageChanged(const PackageInfoEvent& event)
  33 {
  34         if ((event.Changes() & fChangesMask) == 0)
  35                 return;
  36
  37         BMessenger messenger(fTarget);
  38         if (!messenger.IsValid())
  39                 return;
  40
  41         BMessage message(MSG_UPDATE_PACKAGE);
  42         message.AddString("name", event.Package()->Name());
  43         message.AddUInt32("changes", event.Changes());
  44
  45         messenger.SendMessage(&message);
  46 }
  47
  48
  49 void
  50 MessagePackageListener::SetChangesMask(uint32 mask)
  51 {
  52         fChangesMask = mask;
  53 }
  54
  55
  56 // #pragma mark - OnePackageMessagePackageListener
  57
  58
  59 OnePackageMessagePackageListener::OnePackageMessagePackageListener(BHandler* target)
  60         :
  61         MessagePackageListener(target)
  62 {
  63 }
  64
  65
  66 OnePackageMessagePackageListener::~OnePackageMessagePackageListener()
  67 {
  68 }
  69
  70
  71 void
  72 OnePackageMessagePackageListener::SetPackage(const PackageInfoRef& package)
  73 {
  74         if (fPackage == package)
  75                 return;
  76
  77         PackageInfoListenerRef listener(this);
  78
  79         if (fPackage.Get() != NULL)
  80                 fPackage->RemoveListener(listener);
  81
  82         fPackage = package;
  83
  84         if (fPackage.Get() != NULL)
  85                 fPackage->AddListener(listener);
  86 }
  87
  88
  89 const PackageInfoRef&
  90 OnePackageMessagePackageListener::Package() const
  91 {
  92         return fPackage;
  93 }