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1 /* |
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2 * Copyright (c) 2008-2009 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: Utility class for publishing the zoom state |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 // Class header |
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21 #include "glxzoomstatepublisher.h" |
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22 |
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23 // External includes |
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24 #include <bldvariant.hrh> // for feature flag |
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25 #include <cfclient.h> |
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26 #include <cflistener.h> |
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27 |
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28 // Internal includes |
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29 #include <glxlog.h> |
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30 |
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31 /** |
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32 * @internal reviewed 5/02/2007 by Alex Birkett |
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33 */ |
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34 |
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35 // ----------------------------------------------------------------------------- |
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36 // NGlxZoomStatePublisher |
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37 // ----------------------------------------------------------------------------- |
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38 namespace NGlxZoomStatePublisher |
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39 { |
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40 #ifdef GLX_PUBLISH_ZOOMING_STATE |
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41 // local constants |
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42 _LIT( KGlxContextSource, "Application" ); |
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43 _LIT( KGlxContextType, "Photos.Zoom" ); |
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44 _LIT_SECURITY_POLICY_PASS( KGlxContextSec ); |
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45 |
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46 _LIT( KGlxContextValueEnabled, "Enabled" ); |
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47 _LIT( KGlxContextValueDisabled, "Disabled" ); |
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48 |
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49 /** |
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50 * Implementation of MCFListener, needed |
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51 * since CCFClient takes a reference |
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52 */ |
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53 class TemporaryListener : public MCFListener |
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54 { |
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55 private: // From MCFListener |
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56 /// @ref MCFListener |
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57 void ContextIndicationL( |
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58 const CCFContextIndication& /*aChangedContext*/ ) |
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59 { |
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60 // nothing to do |
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61 } |
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62 /// @ref MCFListener |
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63 void ActionIndicationL( |
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64 const CCFActionIndication& /*aActionToExecute*/ ) |
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65 { |
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66 // nothing to do |
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67 } |
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68 /// @ref MCFListener |
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69 void HandleContextFrameworkError( |
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70 TCFError /*aError*/, |
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71 const TDesC& /*aSource*/, |
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72 const TDesC& /*aType*/ ) |
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73 { |
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74 // nothing to do |
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75 } |
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76 /// @ref MCFListener |
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77 TAny* Extension( const TUid& /*aExtensionUid*/ ) const |
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78 { |
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79 // nothing to do |
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80 return NULL; |
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81 } |
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82 }; |
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83 |
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84 // ----------------------------------------------------------------------------- |
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85 // PublishStateL |
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86 // ----------------------------------------------------------------------------- |
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87 EXPORT_C void PublishStateL( TBool aEnabled ) |
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88 { |
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89 TRACER( "NGlxZoomStatePublisher::PublishStateL" ); |
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90 // publish zooming state if the feature is enabled |
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91 TemporaryListener templistener; |
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92 // create client and keep it on the cleanupstack |
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93 CCFClient* client = CCFClient::NewLC( templistener ); |
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94 // define the context |
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95 TInt err = client->DefineContext( |
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96 KGlxContextSource, KGlxContextType, KGlxContextSec ); |
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97 // if either success or context already there |
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98 if( ( err == KErrNone )|| |
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99 ( err == KErrAlreadyExists ) ) |
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100 { |
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101 // create context object and keep it on the cleanupstack |
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102 CCFContextObject* context = CCFContextObject::NewLC(); |
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103 // set source and type |
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104 context->SetSourceL( KGlxContextSource ); |
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105 context->SetTypeL( KGlxContextType ); |
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106 // default zoom state is disabled |
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107 context->SetValueL( KGlxContextValueDisabled ); |
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108 if( aEnabled ) |
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109 { |
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110 // enable zoom state |
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111 context->SetValueL( KGlxContextValueEnabled ); |
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112 } |
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113 // publish, cant really deal with the error so just ignore it |
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114 (void)client->PublishContext( *context ); |
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115 CleanupStack::PopAndDestroy( context ); |
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116 } |
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117 // release client |
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118 CleanupStack::PopAndDestroy( client ); |
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119 } // PublishStateL |
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120 #else |
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121 // ----------------------------------------------------------------------------- |
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122 // PublishStateL |
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123 // ----------------------------------------------------------------------------- |
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124 EXPORT_C void PublishStateL( TBool /*aEnabled*/ ) |
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125 { |
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126 } |
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127 #endif |
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128 } // namespace |
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129 |