1 /* |
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2 * Copyright 2000-2004 Sun Microsystems, Inc. All Rights Reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Sun designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Sun in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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22 * CA 95054 USA or visit www.sun.com if you need additional information or |
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23 * have any questions. |
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24 */ |
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25 |
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26 #ifndef AWT_DATATRANSFERER_H |
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27 #define AWT_DATATRANSFERER_H |
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28 |
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29 #include <X11/Intrinsic.h> |
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30 #include <inttypes.h> |
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31 |
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32 #define _XA_DELETE "DELETE" |
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33 #define _XA_FILENAME "FILE_NAME" |
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34 #define _XA_HOSTNAME "HOST_NAME" |
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35 #define _XA_NULL "NULL" |
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36 #define _DT_FILENAME "_DT_NETFILE" |
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37 |
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38 #define AWT_DND_POLL_INTERVAL ((unsigned long)250) /* milliseconds */ |
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39 |
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40 typedef struct { |
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41 jobject source; |
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42 jobject transferable; |
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43 jobject formatMap; |
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44 jlongArray formats; |
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45 } awt_convertDataCallbackStruct; |
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46 |
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47 extern XContext awt_convertDataContext; /* XContext is not 64 bits */ |
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48 |
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49 extern Atom XA_TARGETS; |
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50 |
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51 /* |
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52 * Single routine to convert to target FILE_NAME or _DT_FILENAME |
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53 */ |
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54 Boolean |
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55 convertFileType(jbyteArray data, Atom * type, XtPointer * value, |
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56 unsigned long *length, int32_t *format); |
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57 |
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58 Boolean |
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59 awt_convertData(Widget w, Atom * selection, Atom * target, Atom * type, |
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60 XtPointer * value, unsigned long *length, int32_t *format); |
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61 |
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62 jlongArray |
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63 get_selection_targets(JNIEnv *env, Atom selection, Time time_stamp); |
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64 |
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65 jlongArray |
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66 getSelectionTargetsHelper(JNIEnv* env, XtPointer value, unsigned long length); |
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67 |
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68 jbyteArray |
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69 get_selection_data(JNIEnv *env, Atom selection, Atom format, Time time_stamp); |
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70 |
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71 void |
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72 awt_cleanupConvertDataContext(JNIEnv *env, Atom selectionAtom); |
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73 |
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74 /* |
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75 * NOTE: You need these macros only if you take care of performance, since they |
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76 * provide proper caching. Otherwise you can use JNU_CallMethodByName etc. |
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77 */ |
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78 |
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79 /* |
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80 * This macro defines a function which returns the class for the specified |
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81 * class name with proper caching and error handling. |
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82 */ |
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83 #define DECLARE_JAVA_CLASS(javaclazz, name) \ |
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84 static jclass \ |
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85 get_ ## javaclazz(JNIEnv* env) { \ |
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86 static jclass javaclazz = NULL; \ |
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87 \ |
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88 if (JNU_IsNull(env, javaclazz)) { \ |
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89 jclass javaclazz ## Local = (*env)->FindClass(env, name); \ |
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90 \ |
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91 if (!JNU_IsNull(env, javaclazz ## Local)) { \ |
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92 javaclazz = (jclass)(*env)->NewGlobalRef(env, javaclazz ## Local); \ |
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93 (*env)->DeleteLocalRef(env, javaclazz ## Local); \ |
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94 if (JNU_IsNull(env, javaclazz)) { \ |
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95 JNU_ThrowOutOfMemoryError(env, ""); \ |
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96 } \ |
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97 } \ |
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98 \ |
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99 if (!JNU_IsNull(env, ((*env)->ExceptionOccurred(env)))) { \ |
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100 (*env)->ExceptionDescribe(env); \ |
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101 (*env)->ExceptionClear(env); \ |
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102 } \ |
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103 } \ |
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104 \ |
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105 DASSERT(!JNU_IsNull(env, javaclazz)); \ |
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106 \ |
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107 return javaclazz; \ |
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108 } |
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109 |
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110 /* |
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111 * The following macros defines blocks of code which retrieve a method of the |
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112 * specified class identified with the specified name and signature. |
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113 * The specified class should be previously declared with DECLARE_JAVA_CLASS. |
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114 * These macros should be placed at the beginning of a block, after definition |
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115 * of local variables, but before the code begins. |
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116 */ |
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117 #define DECLARE_VOID_JAVA_METHOD(method, javaclazz, name, signature) \ |
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118 static jmethodID method = NULL; \ |
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119 \ |
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120 if (JNU_IsNull(env, method)) { \ |
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121 jclass clazz = get_ ## javaclazz(env); \ |
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122 \ |
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123 if (JNU_IsNull(env, clazz)) { \ |
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124 return; \ |
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125 } \ |
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126 \ |
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127 method = (*env)->GetMethodID(env, clazz, name, signature); \ |
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128 \ |
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129 if ((*env)->ExceptionCheck(env) == JNI_TRUE) { \ |
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130 (*env)->ExceptionDescribe(env); \ |
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131 (*env)->ExceptionClear(env); \ |
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132 } \ |
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133 \ |
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134 if (JNU_IsNull(env, method)) { \ |
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135 DASSERT(False); \ |
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136 return; \ |
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137 } \ |
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138 } |
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139 |
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140 #define DECLARE_BOOLEAN_JAVA_METHOD(method, javaclazz, name, signature) \ |
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141 static jmethodID method = NULL; \ |
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142 \ |
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143 if (JNU_IsNull(env, method)) { \ |
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144 jclass clazz = get_ ## javaclazz(env); \ |
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145 \ |
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146 if (JNU_IsNull(env, clazz)) { \ |
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147 return False; \ |
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148 } \ |
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149 \ |
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150 method = (*env)->GetMethodID(env, clazz, name, signature); \ |
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151 \ |
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152 if ((*env)->ExceptionCheck(env) == JNI_TRUE) { \ |
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153 (*env)->ExceptionDescribe(env); \ |
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154 (*env)->ExceptionClear(env); \ |
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155 } \ |
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156 \ |
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157 if (JNU_IsNull(env, method)) { \ |
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158 DASSERT(False); \ |
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159 return False; \ |
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160 } \ |
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161 } |
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162 |
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163 #define DECLARE_JINT_JAVA_METHOD(method, javaclazz, name, signature) \ |
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164 static jmethodID method = NULL; \ |
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165 \ |
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166 if (JNU_IsNull(env, method)) { \ |
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167 jclass clazz = get_ ## javaclazz(env); \ |
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168 \ |
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169 if (JNU_IsNull(env, clazz)) { \ |
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170 return java_awt_dnd_DnDConstants_ACTION_NONE; \ |
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171 } \ |
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172 \ |
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173 method = (*env)->GetMethodID(env, clazz, name, signature); \ |
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174 \ |
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175 if ((*env)->ExceptionCheck(env) == JNI_TRUE) { \ |
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176 (*env)->ExceptionDescribe(env); \ |
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177 (*env)->ExceptionClear(env); \ |
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178 } \ |
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179 \ |
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180 if (JNU_IsNull(env, method)) { \ |
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181 DASSERT(False); \ |
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182 return java_awt_dnd_DnDConstants_ACTION_NONE; \ |
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183 } \ |
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184 } |
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185 |
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186 #define DECLARE_OBJECT_JAVA_METHOD(method, javaclazz, name, signature) \ |
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187 static jmethodID method = NULL; \ |
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188 \ |
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189 if (JNU_IsNull(env, method)) { \ |
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190 jclass clazz = get_ ## javaclazz(env); \ |
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191 \ |
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192 if (JNU_IsNull(env, clazz)) { \ |
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193 return NULL; \ |
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194 } \ |
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195 \ |
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196 method = (*env)->GetMethodID(env, clazz, name, signature); \ |
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197 \ |
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198 if ((*env)->ExceptionCheck(env) == JNI_TRUE) { \ |
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199 (*env)->ExceptionDescribe(env); \ |
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200 (*env)->ExceptionClear(env); \ |
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201 } \ |
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202 \ |
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203 if (JNU_IsNull(env, method)) { \ |
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204 DASSERT(False); \ |
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205 return NULL; \ |
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206 } \ |
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207 } |
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208 |
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209 #define DECLARE_STATIC_OBJECT_JAVA_METHOD(method, javaclazz, name, signature) \ |
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210 static jmethodID method = NULL; \ |
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211 jclass clazz = get_ ## javaclazz(env); \ |
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212 \ |
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213 if (JNU_IsNull(env, clazz)) { \ |
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214 return NULL; \ |
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215 } \ |
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216 \ |
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217 if (JNU_IsNull(env, method)) { \ |
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218 method = (*env)->GetStaticMethodID(env, clazz, name, signature); \ |
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219 \ |
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220 if ((*env)->ExceptionCheck(env) == JNI_TRUE) { \ |
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221 (*env)->ExceptionDescribe(env); \ |
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222 (*env)->ExceptionClear(env); \ |
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223 } \ |
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224 \ |
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225 if (JNU_IsNull(env, method)) { \ |
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226 DASSERT(False); \ |
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227 return NULL; \ |
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228 } \ |
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229 } |
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230 |
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231 #define DECLARE_STATIC_VOID_JAVA_METHOD(method, javaclazz, name, signature) \ |
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232 static jmethodID method = NULL; \ |
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233 jclass clazz = get_ ## javaclazz(env); \ |
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234 \ |
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235 if (JNU_IsNull(env, clazz)) { \ |
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236 return; \ |
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237 } \ |
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238 \ |
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239 if (JNU_IsNull(env, method)) { \ |
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240 method = (*env)->GetStaticMethodID(env, clazz, name, signature); \ |
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241 \ |
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242 if ((*env)->ExceptionCheck(env) == JNI_TRUE) { \ |
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243 (*env)->ExceptionDescribe(env); \ |
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244 (*env)->ExceptionClear(env); \ |
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245 } \ |
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246 \ |
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247 if (JNU_IsNull(env, method)) { \ |
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248 DASSERT(False); \ |
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249 return; \ |
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250 } \ |
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251 } |
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252 |
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253 #define DECLARE_STATIC_JINT_JAVA_METHOD(method, javaclazz, name, signature) \ |
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254 static jmethodID method = NULL; \ |
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255 jclass clazz = get_ ## javaclazz(env); \ |
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256 \ |
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257 if (JNU_IsNull(env, clazz)) { \ |
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258 return java_awt_dnd_DnDConstants_ACTION_NONE; \ |
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259 } \ |
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260 \ |
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261 if (JNU_IsNull(env, method)) { \ |
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262 method = (*env)->GetStaticMethodID(env, clazz, name, signature); \ |
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263 \ |
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264 if ((*env)->ExceptionCheck(env) == JNI_TRUE) { \ |
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265 (*env)->ExceptionDescribe(env); \ |
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266 (*env)->ExceptionClear(env); \ |
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267 } \ |
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268 \ |
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269 if (JNU_IsNull(env, method)) { \ |
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270 DASSERT(False); \ |
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271 return java_awt_dnd_DnDConstants_ACTION_NONE; \ |
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272 } \ |
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273 } |
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274 |
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275 #endif /* AWT_DATATRANSFERER_H */ |
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