40 public int handleError(long display, XErrorEvent err) { |
40 public int handleError(long display, XErrorEvent err) { |
41 return XErrorHandlerUtil.SAVED_XERROR_HANDLER(display, err); |
41 return XErrorHandlerUtil.SAVED_XERROR_HANDLER(display, err); |
42 } |
42 } |
43 } |
43 } |
44 |
44 |
45 /** |
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46 * This is a base synthetic error handler containing a boolean flag which allows |
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47 * to show that an error is handled or not. |
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48 */ |
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49 public static class XErrorHandlerWithFlag extends XBaseErrorHandler { |
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50 private volatile boolean errorOccurred = false; |
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51 |
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52 public boolean getErrorOccurredFlag() { |
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53 return errorOccurred; |
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54 } |
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55 |
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56 /** |
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57 * Sets an internal boolean flag to a particular value. Should be always called with |
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58 * <code>false</code> value of the parameter <code>errorOccurred</code> before this |
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59 * error handler is set as current. |
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60 * @param errorOccurred <code>true</code> to indicate that an error was handled, |
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61 * <code>false</code> to reset the internal boolean flag |
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62 */ |
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63 public void setErrorOccurredFlag(boolean errorOccurred) { |
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64 this.errorOccurred = errorOccurred; |
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65 } |
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66 } |
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67 |
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68 /* |
45 /* |
69 * Instead of validating window id, we simply call XGetWindowProperty, |
46 * Instead of validating window id, we simply call XGetWindowProperty, |
70 * but temporary install this function as the error handler to ignore |
47 * but temporary install this function as the error handler to ignore |
71 * BadWindow error. |
48 * BadWindow error. |
72 */ |
49 */ |
97 private static VerifyChangePropertyHandler theInstance = new VerifyChangePropertyHandler(); |
74 private static VerifyChangePropertyHandler theInstance = new VerifyChangePropertyHandler(); |
98 public static VerifyChangePropertyHandler getInstance() { |
75 public static VerifyChangePropertyHandler getInstance() { |
99 return theInstance; |
76 return theInstance; |
100 } |
77 } |
101 } |
78 } |
102 |
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103 /** |
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104 * This is a synthetic error handler for errors generated by the native function |
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105 * <code>XShmAttach</code>. If an error is handled, an internal boolean flag of the |
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106 * handler is set to <code>true</code>. |
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107 */ |
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108 public static final class XShmAttachHandler extends XErrorHandlerWithFlag { |
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109 private XShmAttachHandler() {} |
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110 |
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111 @Override |
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112 public int handleError(long display, XErrorEvent err) { |
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113 if (err.get_minor_code() == XConstants.X_ShmAttach) { |
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114 setErrorOccurredFlag(true); |
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115 return 0; |
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116 } |
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117 return super.handleError(display, err); |
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118 } |
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119 |
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120 // Shared instance |
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121 private static XShmAttachHandler theInstance = new XShmAttachHandler(); |
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122 public static XShmAttachHandler getInstance() { |
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123 return theInstance; |
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124 } |
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125 } |
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126 |
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127 /** |
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128 * This is a synthetic error handler for <code>BadAlloc</code> errors generated by the |
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129 * native <code>glX*</code> functions. Its internal boolean flag is set to <code>true</code>, |
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130 * if an error is handled. |
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131 */ |
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132 public static final class GLXBadAllocHandler extends XErrorHandlerWithFlag { |
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133 private GLXBadAllocHandler() {} |
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134 |
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135 @Override |
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136 public int handleError(long display, XErrorEvent err) { |
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137 if (err.get_error_code() == XConstants.BadAlloc) { |
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138 setErrorOccurredFlag(true); |
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139 return 0; |
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140 } |
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141 return super.handleError(display, err); |
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142 } |
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143 |
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144 private static GLXBadAllocHandler theInstance = new GLXBadAllocHandler(); |
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145 public static GLXBadAllocHandler getInstance() { |
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146 return theInstance; |
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147 } |
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148 } |
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149 } |
79 } |