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1 // Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // |
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15 /** |
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16 * @file apmstd.h |
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17 * |
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18 * @internalComponent |
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19 * @released |
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20 */ |
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21 #if !defined (__APMSTD_H__) |
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22 #define __APMSTD_H__ |
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23 |
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24 #include "commontypes.h" |
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25 |
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26 /** |
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27 @publishedAll |
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28 @released |
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29 |
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30 The largest possible value for a TInt16. |
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31 */ |
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32 const TInt KMaxTInt16=0x7fff; |
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33 |
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34 /** |
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35 @publishedAll |
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36 @released |
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37 |
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38 The smallest possible value for a TInt16. |
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39 */ |
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40 const TInt KMinTInt16=(-32768); |
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41 |
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42 /** |
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43 @publishedAll |
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44 @released |
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45 */ |
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46 const TInt KMaxDataTypeLength=256; |
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47 |
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48 /** Defines the priority associated with a data type. |
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49 |
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50 The priority is used by a device to resolve the current preferred handler |
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51 of a data type, in the absence of any user preferences. |
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52 |
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53 @publishedAll |
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54 @released |
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55 @see TDataTypeWithPriority */ |
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56 typedef TInt32 TDataTypePriority; |
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57 |
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58 /** Reserved for future use. |
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59 |
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60 @publishedAll |
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61 @released */ |
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62 const TInt32 KDataTypePriorityUserSpecified=KMaxTInt16; |
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63 |
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64 /** Trusted applications may use this priority value to ensure |
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65 their MIME type associations cannot be overridden by |
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66 self signed (untrusted) applications. |
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67 |
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68 @publishedAll |
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69 @released |
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70 @see TDataTypeWithPriority */ |
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71 const TInt32 KDataTypePriorityTrustedHigh = 0xC000; |
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72 |
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73 /** This is Threshold priority for Un-Trusted apps i.e., for the applications which reside |
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74 in \\private\\10003a3f\\import\\apps and have a SID which is in the unprotected range. This is to avoid Un-Trusted app's claiming for priority higher |
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75 than the threshold, if they claim for priority higher than the Threshold then it would be |
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76 reduced to KDataTypeUnTrustedPriorityThreshold. |
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77 |
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78 @publishedAll |
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79 @released */ |
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80 const TInt32 KDataTypeUnTrustedPriorityThreshold=KMaxTInt16; |
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81 |
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82 /** A priority value associated with a data (MIME) type. Associating an application |
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83 with a data type at this priority means that this application, and no other, |
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84 should ever handle the data type. Use sparingly. |
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85 |
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86 @publishedAll |
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87 @released |
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88 @see TDataTypeWithPriority */ |
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89 const TInt32 KDataTypePriorityHigh=10000; |
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90 |
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91 /** A priority value associated with a data (MIME) type. Associating an application |
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92 with a data type at this priority means that the data type is the primary |
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93 type for that application. For example, "text/plain" files for a text editor. |
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94 |
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95 @publishedAll |
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96 @released |
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97 @see TDataTypeWithPriority */ |
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98 const TInt32 KDataTypePriorityNormal=0; |
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99 |
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100 /** A priority value associated with a data (MIME) type. Associating an application |
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101 with a data type at this priority means that the data type is a secondary |
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102 type for that application. For example, "text/plain" files for a web browser. |
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103 |
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104 @publishedAll |
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105 @released |
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106 @see TDataTypeWithPriority */ |
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107 const TInt32 KDataTypePriorityLow=-10000; |
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108 |
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109 /** A priority value associated with a data (MIME) type. Associating an application |
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110 with a data type at this priority means that the data type is a last resort |
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111 for that application. Use sparingly. |
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112 |
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113 @publishedAll |
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114 @released |
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115 @see TDataTypeWithPriority */ |
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116 const TInt32 KDataTypePriorityLastResort=-20000; |
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117 |
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118 /** Reserved for future use. |
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119 |
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120 @publishedAll |
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121 @released */ |
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122 const TInt32 KDataTypePriorityNotSupported=KMinTInt16; |
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123 |
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124 /** This is a special priority that overrides any user settings. Applications must |
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125 have EWriteDeviceData to use this priority. If they have not then they will be |
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126 downgraded to KDataTypePriorityNormal. |
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127 |
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128 @publishedPartner |
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129 @released |
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130 @see TDataTypeWithPriority */ |
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131 const TInt32 KDataTypePrioritySystem = 0xFFF9; |
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132 |
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133 |
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134 /** A data type. |
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135 |
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136 The class maintains a string that describes the data type and an associated |
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137 UID. |
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138 |
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139 A data type is also referred to as a MIME type. |
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140 |
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141 @publishedAll |
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142 @released */ |
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143 class TDataType |
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144 { |
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145 public: |
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146 TDataType(); |
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147 ~TDataType(); |
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148 TDataType(const PtrC8* aDataType); |
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149 Ptr8* GetDataType(); |
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150 |
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151 private: |
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152 Ptr8* iDataType; |
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153 TUid iUid; |
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154 }; |
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155 |
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156 class TDataTypeWithPriority |
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157 /** A data (MIME) type and a priority value for that data type. |
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158 |
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159 The priority is used to resolve the current preferred handler of a data type, |
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160 in the absence of any user preferences. An AIF file can associate an application |
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161 with a data (MIME) type that is not native to Symbian OS. A priority value |
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162 can be specified that allows the device to choose the highest priority application |
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163 that can handle that data type. |
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164 |
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165 @publishedAll |
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166 @released |
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167 @see TDataType |
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168 @see TDataTypePriority */ |
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169 { |
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170 public: |
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171 TDataTypeWithPriority(); |
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172 TDataTypeWithPriority(const TDataType& aDataType, TDataTypePriority aPriority); |
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173 |
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174 public: |
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175 /** The data type. */ |
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176 TDataType iDataType; |
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177 /** The priority value. */ |
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178 TDataTypePriority iPriority; |
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179 }; |
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180 |
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181 #endif |