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1 // Copyright (c) 2007-2009 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 #include "registeredsurfacemap.h" |
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17 #include "panics.h" |
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18 #include <graphics/wsscene.h> |
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19 #include <w32std.h> |
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20 |
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21 /** |
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22 Destructor for the surface map, will unregister every surface in every client. |
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23 */ |
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24 CRegisteredSurfaceMap::~CRegisteredSurfaceMap() |
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25 { |
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26 TInt tempCount = iSessionSurfaces.Count(); |
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27 for (TInt ii = 0; ii < tempCount; ii++) |
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28 { |
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29 iSessionSurfaces[ii].RemoveAll(iScene); |
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30 } |
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31 iSessionSurfaces.Close(); |
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32 } |
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33 |
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34 /** |
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35 Constructor for the surface map. |
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36 */ |
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37 CRegisteredSurfaceMap::CRegisteredSurfaceMap(MWsScene& aScene):iScene(aScene) |
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38 {} |
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39 |
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40 /** |
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41 Basic compare function, looking at the address of each session. |
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42 @param aLeft Left session for comparison. |
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43 @param aRight Right session for comparison. |
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44 @return Negative if left is smaller than right, positive if left is greater than right, |
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45 zero if they are the same. |
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46 */ |
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47 TInt CRegisteredSurfaceMap::CompareDeviceSurfaces (const TSessionSurfaces& aLeft, const TSessionSurfaces& aRight) |
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48 { |
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49 return (TInt)&aLeft.Session()-(TInt)&aRight.Session(); |
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50 } |
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51 |
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52 /** |
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53 Function to register a surface on a client. Will go through a process to add the surface to a list |
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54 for the client to keep track of which surfaces are registered for which clients. |
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55 @param aClient The client for which to register the surface. |
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56 @param aSurfaceId The surface to register on the client. |
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57 @return KErrNone on success or a system-wide error code. |
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58 @see CWsClient::RegisterSurface |
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59 */ |
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60 TInt CRegisteredSurfaceMap::Add(const CWsClient& aClient, const TSurfaceId& aSurfaceId) |
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61 { |
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62 TInt err; |
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63 TInt tempPos; |
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64 TSessionSurfaces tempDeviceSurface(aClient); |
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65 |
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66 //find client |
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67 err = iSessionSurfaces.FindInOrder(tempDeviceSurface, tempPos, TLinearOrder<TSessionSurfaces>(CompareDeviceSurfaces)); |
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68 |
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69 //if the client is found |
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70 if (err == KErrNone) |
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71 { |
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72 err = iSessionSurfaces[tempPos].AddSurfaceId(aSurfaceId, iScene); |
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73 } |
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74 else |
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75 { |
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76 if (err == KErrNotFound) |
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77 { |
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78 err = iSessionSurfaces.Insert(tempDeviceSurface, tempPos); |
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79 if (err == KErrNone) |
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80 { |
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81 err = iSessionSurfaces[tempPos].AddSurfaceId(aSurfaceId, iScene); |
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82 if ((err != KErrNone) && (err != KErrInUse)) //it didnt manage to register the surface id |
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83 { |
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84 iSessionSurfaces.Remove(tempPos); |
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85 } |
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86 } |
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87 } |
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88 } |
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89 return err; |
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90 } |
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91 |
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92 /** |
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93 Function to unregister a specific surface on a specific client. Goes through a process to check |
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94 that the surface is registered for the client before remove it from the list and unregistering it. |
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95 @param aClient The client for which to unregister the surface. |
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96 @param aSurfaceId The surface to unregister on the client. |
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97 @return KErrNone on success or a system-wide error code. |
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98 @see CWsClient::UnregisterSurface |
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99 */ |
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100 TInt CRegisteredSurfaceMap::Remove(CWsClient& aClient, const TSurfaceId& aSurfaceId) |
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101 { |
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102 TInt err; |
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103 TInt tempPos; |
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104 TSessionSurfaces tempDeviceSurface(aClient); |
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105 |
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106 //find client |
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107 err = iSessionSurfaces.FindInOrder(tempDeviceSurface, tempPos, TLinearOrder<TSessionSurfaces>(CompareDeviceSurfaces)); |
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108 TInt surfaceAmountLeftOrError; |
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109 //if found |
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110 if (err == KErrNone) |
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111 { |
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112 surfaceAmountLeftOrError = iSessionSurfaces[tempPos].RemoveSurfaceId(aSurfaceId, iScene); |
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113 if (surfaceAmountLeftOrError == 0) //there are no more surfaces registered for the client |
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114 { |
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115 iSessionSurfaces.Remove(tempPos); |
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116 } |
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117 if (surfaceAmountLeftOrError < 0) //if an error was returned |
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118 { |
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119 err = surfaceAmountLeftOrError; |
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120 } |
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121 } |
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122 return err; |
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123 } |
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124 |
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125 /** |
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126 Function that will unregister all surfaces for a specific client. |
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127 @param aClient The client for which to unregister all clients. |
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128 @return KErrNone on success or a system-wide error code. |
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129 @see CWsTop::ClearSurfaceMap |
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130 @see CWsClient::~CWsClient() |
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131 */ |
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132 TInt CRegisteredSurfaceMap::RemoveAll(CWsClient& aClient) |
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133 { |
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134 TInt err; |
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135 TInt tempPos; |
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136 TSessionSurfaces tempDeviceSurface(aClient); |
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137 |
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138 //find client |
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139 err = iSessionSurfaces.FindInOrder(tempDeviceSurface, tempPos, TLinearOrder<TSessionSurfaces>(CompareDeviceSurfaces)); |
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140 |
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141 //if found |
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142 if (err == KErrNone) |
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143 { |
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144 err = iSessionSurfaces[tempPos].RemoveAll(iScene); |
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145 } |
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146 if (err == KErrNone || err == KErrInUse) |
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147 { |
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148 iSessionSurfaces.Remove(tempPos); |
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149 } |
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150 return err; |
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151 } |
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152 |
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153 TSessionSurfaces::TSessionSurfaces(const CWsClient& aSession):iSession(aSession) |
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154 {} |
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155 |
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156 TInt TSessionSurfaces::CompareIds(const TSurfaceId& aLeft, const TSurfaceId& aRight) |
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157 { |
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158 //Compare each internal id of the surface |
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159 TUint32 ll; |
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160 TUint32 rr; |
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161 TInt32 tempResult; |
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162 ll = aLeft.iInternal[0]; |
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163 rr = aRight.iInternal[0]; |
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164 tempResult = ll-rr; |
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165 if (tempResult == 0) |
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166 { |
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167 ll = aLeft.iInternal[1]; |
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168 rr = aRight.iInternal[1]; |
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169 tempResult = ll-rr; |
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170 if (tempResult == 0) |
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171 { |
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172 ll = aLeft.iInternal[2]; |
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173 rr = aRight.iInternal[2]; |
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174 tempResult = ll-rr; |
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175 if (tempResult == 0) |
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176 { |
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177 ll = aLeft.iInternal[3]; |
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178 rr = aRight.iInternal[3]; |
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179 tempResult = ll-rr; |
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180 } |
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181 } |
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182 } |
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183 if (tempResult != 0) //if they are different ids |
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184 { |
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185 if (ll < rr) |
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186 { |
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187 return -1; |
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188 } |
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189 else |
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190 { |
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191 return 1; |
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192 } |
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193 } |
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194 return 0; |
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195 } |
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196 |
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197 TInt TSessionSurfaces::AddSurfaceId(const TSurfaceId& aSurfaceId, MWsScene& aScene) |
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198 { |
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199 TInt err; |
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200 TInt tempPos; |
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201 //find surface id |
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202 err = iSurfaces.FindInOrder(aSurfaceId, tempPos, TLinearOrder<TSurfaceId>(CompareIds)); |
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203 |
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204 if (err == KErrNotFound) |
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205 { |
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206 err = iSurfaces.Insert(aSurfaceId, tempPos); |
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207 if (err == KErrNone) //successfully added surface, can now register |
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208 { |
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209 err = aScene.RegisterSurface(aSurfaceId); |
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210 } |
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211 } |
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212 else |
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213 { |
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214 if (err == KErrNone) |
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215 { |
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216 //shouldnt be registered more than once |
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217 err = KErrInUse; |
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218 } |
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219 } |
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220 return err; |
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221 } |
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222 |
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223 TInt TSessionSurfaces::RemoveSurfaceId(const TSurfaceId& aSurfaceId, MWsScene& aScene) |
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224 { |
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225 TInt surfaceAmountLeftOrError; |
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226 TInt tempPos; |
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227 |
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228 //find surface id |
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229 surfaceAmountLeftOrError = iSurfaces.FindInOrder(aSurfaceId, tempPos, |
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230 TLinearOrder<TSurfaceId>(CompareIds)); |
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231 if (surfaceAmountLeftOrError!=KErrNone) |
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232 surfaceAmountLeftOrError = iSurfaces.FindInOrder(aSurfaceId, tempPos, |
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233 TLinearOrder<TSurfaceId>(CompareIds)); |
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234 //if found |
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235 if (surfaceAmountLeftOrError == KErrNone) |
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236 { |
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237 |
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238 surfaceAmountLeftOrError = aScene.UnregisterSurface(aSurfaceId); |
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239 if ((surfaceAmountLeftOrError == KErrNone) || (surfaceAmountLeftOrError == KErrInUse)) |
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240 { |
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241 iSurfaces.Remove(tempPos); |
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242 surfaceAmountLeftOrError = iSurfaces.Count(); |
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243 } |
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244 else |
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245 { |
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246 WS_ASSERT_DEBUG(EFalse,EWsPanicSurfaceMapError); //Unexpected error |
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247 } |
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248 } |
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249 return surfaceAmountLeftOrError; |
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250 } |
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251 |
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252 TInt TSessionSurfaces::RemoveAll(MWsScene& aScene) |
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253 { |
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254 TInt err = KErrNone; |
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255 TInt returnValue = KErrNone; |
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256 TInt tempSize = iSurfaces.Count(); |
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257 for (TInt ii = 0; ii < tempSize; ii++) |
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258 { |
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259 err = aScene.UnregisterSurface(iSurfaces[ii]); |
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260 WS_ASSERT_ALWAYS((err == KErrNone) || (err == KErrInUse), EWsPanicSurfaceMapError); |
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261 if (err != KErrNone && returnValue == KErrNone) |
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262 { //return first error code |
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263 returnValue = err; |
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264 } |
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265 } |
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266 iSurfaces.Close(); |
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267 return returnValue; |
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268 } |