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1 /* |
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2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 #include "AknTaskList.h" |
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18 #include <apgwgnam.h> |
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19 #include "AknPanic.h" |
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20 |
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21 EXPORT_C CAknTaskList* CAknTaskList::NewL(RWsSession& aWsSession) |
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22 { |
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23 CAknTaskList* self = NewLC(aWsSession); |
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24 CleanupStack::Pop(self); |
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25 return self; |
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26 } |
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27 |
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28 EXPORT_C CAknTaskList* CAknTaskList::NewLC(RWsSession& aWsSession) |
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29 { |
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30 CAknTaskList* self = new(ELeave) CAknTaskList(aWsSession); |
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31 CleanupStack::PushL(self); |
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32 self->ConstructL(); |
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33 return self; |
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34 } |
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35 |
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36 CAknTaskList::CAknTaskList(RWsSession& aWsSession) |
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37 : iWs(aWsSession) |
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38 { |
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39 } |
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40 |
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41 void CAknTaskList::ConstructL() |
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42 { |
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43 UpdateListL(); |
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44 } |
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45 |
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46 EXPORT_C CAknTaskList::~CAknTaskList() |
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47 { |
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48 iWgs.Close(); |
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49 } |
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50 |
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51 EXPORT_C void CAknTaskList::UpdateListL() |
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52 { |
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53 User::LeaveIfError(iWs.WindowGroupList(0, &iWgs)); |
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54 } |
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55 |
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56 EXPORT_C const RArray<RWsSession::TWindowGroupChainInfo>& CAknTaskList::WgArray() const |
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57 { |
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58 return iWgs; |
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59 } |
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60 |
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61 EXPORT_C TApaTask CAknTaskList::FindRootApp(TUid aAppUid) const |
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62 { |
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63 TApaTask task(iWs); |
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64 task.SetWgId(0); // initialise task to non-existant task |
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65 // wgId = 0 tells FindAppByUid to start looking for apps |
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66 TInt wgId=0; |
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67 FOREVER |
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68 { |
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69 CApaWindowGroupName::FindByAppUid(aAppUid, iWs, wgId); |
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70 // KErrNotFound means that no more apps can be found |
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71 if (wgId == KErrNotFound) |
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72 break; |
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73 if (IsRootWindowGroup(wgId)) |
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74 { |
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75 // Found a root wg with the right app UID, return it. |
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76 task.SetWgId(wgId); |
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77 break; |
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78 } |
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79 } |
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80 return task; |
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81 } |
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82 |
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83 EXPORT_C TBool CAknTaskList::IsRootWindowGroup(TInt aWgId) const |
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84 { |
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85 TInt count = iWgs.Count(); |
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86 for (TInt ii=0; ii<count; ii++) |
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87 { |
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88 const RWsSession::TWindowGroupChainInfo& info = iWgs[ii]; |
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89 // find the window group id and check that it has no parent |
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90 if (info.iId == aWgId) |
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91 return (info.iParentId <= 0); |
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92 } |
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93 return EFalse; |
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94 } |
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95 |
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96 EXPORT_C TInt CAknTaskList::FindParentWgId(TInt aWgId) const |
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97 { |
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98 TInt count = iWgs.Count(); |
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99 for (TInt ii=0; ii<count; ii++) |
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100 { |
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101 const RWsSession::TWindowGroupChainInfo& info = iWgs[ii]; |
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102 if (info.iId == aWgId && info.iParentId > 0 && info.iParentId != info.iId) |
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103 return info.iParentId; |
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104 } |
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105 return 0; |
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106 } |
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107 |
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108 EXPORT_C TInt CAknTaskList::FindChildWgId(TInt aWgId) const |
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109 { |
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110 TInt count = iWgs.Count(); |
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111 for (TInt ii=0; ii<count; ii++) |
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112 { |
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113 const RWsSession::TWindowGroupChainInfo& info = iWgs[ii]; |
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114 if (info.iParentId == aWgId && info.iId > 0 && info.iParentId != info.iId) |
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115 return info.iId; |
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116 } |
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117 return 0; |
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118 } |
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119 |
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120 |
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121 |
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122 |
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123 |