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1 /* |
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2 * Copyright (c) 1999, 2017, Oracle and/or its affiliates. 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. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 #ifdef HEADLESS |
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27 #error This file should not be included in headless library |
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28 #endif |
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29 |
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30 #include "jvm_md.h" |
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31 #include <dlfcn.h> |
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32 |
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33 #include "awt_p.h" |
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34 #include "awt_GraphicsEnv.h" |
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35 #define XK_MISCELLANY |
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36 #include <X11/keysymdef.h> |
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37 #include <X11/Xutil.h> |
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38 #include <X11/Xmd.h> |
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39 #include <X11/extensions/xtestext1.h> |
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40 #include <X11/extensions/XTest.h> |
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41 #include <X11/extensions/XInput.h> |
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42 #include <X11/extensions/XI.h> |
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43 #include <jni.h> |
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44 #include <sizecalc.h> |
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45 #include "robot_common.h" |
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46 #include "canvas.h" |
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47 #include "wsutils.h" |
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48 #include "list.h" |
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49 #include "multiVis.h" |
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50 #include "gtk_interface.h" |
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51 |
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52 #if defined(__linux__) || defined(MACOSX) |
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53 #include <sys/socket.h> |
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54 #endif |
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55 |
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56 static Bool (*compositeQueryExtension) (Display*, int*, int*); |
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57 static Status (*compositeQueryVersion) (Display*, int*, int*); |
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58 static Window (*compositeGetOverlayWindow) (Display *, Window); |
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59 |
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60 extern struct X11GraphicsConfigIDs x11GraphicsConfigIDs; |
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61 |
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62 static jint * masks; |
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63 static jint num_buttons; |
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64 |
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65 static void *xCompositeHandle; |
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66 |
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67 static const char* XCOMPOSITE = JNI_LIB_NAME("Xcomposite"); |
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68 static const char* XCOMPOSITE_VERSIONED = VERSIONED_JNI_LIB_NAME("Xcomposite", "1"); |
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69 |
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70 static Bool checkXCompositeFunctions(void) { |
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71 return (compositeQueryExtension != NULL && |
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72 compositeQueryVersion != NULL && |
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73 compositeGetOverlayWindow != NULL); |
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74 } |
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75 |
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76 static void initXCompositeFunctions(void) { |
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77 |
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78 if (xCompositeHandle == NULL) { |
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79 xCompositeHandle = dlopen(XCOMPOSITE, RTLD_LAZY | RTLD_GLOBAL); |
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80 if (xCompositeHandle == NULL) { |
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81 xCompositeHandle = dlopen(XCOMPOSITE_VERSIONED, RTLD_LAZY | RTLD_GLOBAL); |
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82 } |
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83 } |
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84 //*(void **)(&asyncGetCallTraceFunction) |
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85 if (xCompositeHandle != NULL) { |
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86 *(void **)(&compositeQueryExtension) = dlsym(xCompositeHandle, "XCompositeQueryExtension"); |
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87 *(void **)(&compositeQueryVersion) = dlsym(xCompositeHandle, "XCompositeQueryVersion"); |
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88 *(void **)(&compositeGetOverlayWindow) = dlsym(xCompositeHandle, "XCompositeGetOverlayWindow"); |
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89 } |
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90 |
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91 if (xCompositeHandle && !checkXCompositeFunctions()) { |
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92 dlclose(xCompositeHandle); |
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93 } |
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94 } |
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95 |
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96 static int32_t isXTestAvailable() { |
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97 int32_t major_opcode, first_event, first_error; |
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98 int32_t event_basep, error_basep, majorp, minorp; |
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99 int32_t isXTestAvailable; |
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100 |
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101 /* check if XTest is available */ |
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102 isXTestAvailable = XQueryExtension(awt_display, XTestExtensionName, &major_opcode, &first_event, &first_error); |
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103 if (isXTestAvailable) { |
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104 DTRACE_PRINTLN3("RobotPeer: XQueryExtension(XTEST) returns major_opcode = %d, first_event = %d, first_error = %d", |
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105 major_opcode, first_event, first_error); |
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106 /* check if XTest version is OK */ |
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107 XTestQueryExtension(awt_display, &event_basep, &error_basep, &majorp, &minorp); |
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108 DTRACE_PRINTLN4("RobotPeer: XTestQueryExtension returns event_basep = %d, error_basep = %d, majorp = %d, minorp = %d", |
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109 event_basep, error_basep, majorp, minorp); |
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110 if (majorp < 2 || (majorp == 2 && minorp < 2)) { |
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111 /* bad version*/ |
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112 DTRACE_PRINTLN2("XRobotPeer: XTEST version is %d.%d \n", majorp, minorp); |
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113 if (majorp == 2 && minorp == 1) { |
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114 DTRACE_PRINTLN("XRobotPeer: XTEST is 2.1 - no grab is available\n"); |
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115 } else { |
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116 isXTestAvailable = False; |
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117 } |
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118 } else { |
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119 /* allow XTest calls even if someone else has the grab; e.g. during |
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120 * a window resize operation. Works only with XTEST2.2*/ |
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121 XTestGrabControl(awt_display, True); |
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122 } |
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123 } else { |
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124 DTRACE_PRINTLN("RobotPeer: XTEST extension is unavailable"); |
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125 } |
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126 |
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127 return isXTestAvailable; |
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128 } |
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129 |
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130 static Bool hasXCompositeOverlayExtension(Display *display) { |
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131 |
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132 int xoverlay = False; |
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133 int eventBase, errorBase; |
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134 if (checkXCompositeFunctions() && |
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135 compositeQueryExtension(display, &eventBase, &errorBase)) |
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136 { |
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137 int major = 0; |
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138 int minor = 0; |
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139 |
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140 compositeQueryVersion(display, &major, &minor); |
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141 if (major > 0 || minor >= 3) { |
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142 xoverlay = True; |
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143 } |
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144 } |
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145 |
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146 return xoverlay; |
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147 } |
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148 |
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149 static jboolean isXCompositeDisplay(Display *display, int screenNumber) { |
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150 |
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151 char NET_WM_CM_Sn[25]; |
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152 snprintf(NET_WM_CM_Sn, sizeof(NET_WM_CM_Sn), "_NET_WM_CM_S%d\0", screenNumber); |
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153 |
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154 Atom managerSelection = XInternAtom(display, NET_WM_CM_Sn, 0); |
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155 Window owner = XGetSelectionOwner(display, managerSelection); |
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156 |
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157 return owner != 0; |
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158 } |
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159 |
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160 static XImage *getWindowImage(Display * display, Window window, |
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161 int32_t x, int32_t y, |
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162 int32_t w, int32_t h) { |
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163 XImage *image; |
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164 int32_t transparentOverlays; |
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165 int32_t numVisuals; |
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166 XVisualInfo *pVisuals; |
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167 int32_t numOverlayVisuals; |
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168 OverlayInfo *pOverlayVisuals; |
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169 int32_t numImageVisuals; |
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170 XVisualInfo **pImageVisuals; |
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171 list_ptr vis_regions; /* list of regions to read from */ |
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172 list_ptr vis_image_regions ; |
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173 int32_t allImage = 0 ; |
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174 int32_t format = ZPixmap; |
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175 |
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176 /* prevent user from moving stuff around during the capture */ |
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177 XGrabServer(display); |
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178 |
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179 /* |
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180 * The following two functions live in multiVis.c-- they are pretty |
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181 * much verbatim taken from the source to the xwd utility from the |
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182 * X11 source. This version of the xwd source was somewhat better written |
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183 * for reuse compared to Sun's version. |
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184 * |
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185 * ftp.x.org/pub/R6.3/xc/programs/xwd |
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186 * |
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187 * We use these functions since they do the very tough job of capturing |
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188 * the screen correctly when it contains multiple visuals. They take into |
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189 * account the depth/colormap of each visual and produce a capture as a |
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190 * 24-bit RGB image so we don't have to fool around with colormaps etc. |
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191 */ |
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192 |
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193 GetMultiVisualRegions( |
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194 display, |
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195 window, |
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196 x, y, w, h, |
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197 &transparentOverlays, |
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198 &numVisuals, |
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199 &pVisuals, |
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200 &numOverlayVisuals, |
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201 &pOverlayVisuals, |
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202 &numImageVisuals, |
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203 &pImageVisuals, |
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204 &vis_regions, |
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205 &vis_image_regions, |
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206 &allImage ); |
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207 |
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208 image = ReadAreaToImage( |
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209 display, |
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210 window, |
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211 x, y, w, h, |
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212 numVisuals, |
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213 pVisuals, |
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214 numOverlayVisuals, |
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215 pOverlayVisuals, |
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216 numImageVisuals, |
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217 pImageVisuals, |
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218 vis_regions, |
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219 vis_image_regions, |
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220 format, |
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221 allImage ); |
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222 |
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223 /* allow user to do stuff again */ |
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224 XUngrabServer(display); |
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225 |
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226 /* make sure the grab/ungrab is flushed */ |
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227 XSync(display, False); |
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228 |
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229 return image; |
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230 } |
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231 |
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232 /*********************************************************************************************/ |
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233 |
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234 // this should be called from XRobotPeer constructor |
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235 JNIEXPORT void JNICALL |
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236 Java_sun_awt_X11_XRobotPeer_setup (JNIEnv * env, jclass cls, jint numberOfButtons, jintArray buttonDownMasks) |
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237 { |
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238 int32_t xtestAvailable; |
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239 jint *tmp; |
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240 int i; |
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241 |
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242 DTRACE_PRINTLN("RobotPeer: setup()"); |
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243 |
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244 num_buttons = numberOfButtons; |
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245 tmp = (*env)->GetIntArrayElements(env, buttonDownMasks, JNI_FALSE); |
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246 CHECK_NULL(tmp); |
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247 |
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248 masks = (jint *)SAFE_SIZE_ARRAY_ALLOC(malloc, sizeof(jint), num_buttons); |
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249 if (masks == (jint *) NULL) { |
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250 (*env)->ExceptionClear(env); |
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251 (*env)->ReleaseIntArrayElements(env, buttonDownMasks, tmp, 0); |
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252 JNU_ThrowOutOfMemoryError((JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2), NULL); |
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253 return; |
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254 } |
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255 for (i = 0; i < num_buttons; i++) { |
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256 masks[i] = tmp[i]; |
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257 } |
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258 (*env)->ReleaseIntArrayElements(env, buttonDownMasks, tmp, 0); |
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259 |
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260 AWT_LOCK(); |
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261 xtestAvailable = isXTestAvailable(); |
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262 DTRACE_PRINTLN1("RobotPeer: XTest available = %d", xtestAvailable); |
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263 if (!xtestAvailable) { |
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264 JNU_ThrowByName(env, "java/awt/AWTException", "java.awt.Robot requires your X server support the XTEST extension version 2.2"); |
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265 } |
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266 |
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267 AWT_UNLOCK(); |
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268 } |
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269 |
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270 |
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271 JNIEXPORT void JNICALL |
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272 Java_sun_awt_X11_XRobotPeer_getRGBPixelsImpl( JNIEnv *env, |
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273 jclass cls, |
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274 jobject xgc, |
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275 jint jx, |
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276 jint jy, |
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277 jint jwidth, |
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278 jint jheight, |
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279 jintArray pixelArray, |
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280 jboolean useGtk) { |
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281 XImage *image; |
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282 jint *ary; /* Array of jints for sending pixel values back |
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283 * to parent process. |
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284 */ |
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285 Window rootWindow; |
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286 XWindowAttributes attr; |
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287 AwtGraphicsConfigDataPtr adata; |
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288 |
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289 DTRACE_PRINTLN6("RobotPeer: getRGBPixelsImpl(%lx, %d, %d, %d, %d, %x)", xgc, jx, jy, jwidth, jheight, pixelArray); |
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290 |
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291 if (jwidth <= 0 || jheight <= 0) { |
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292 return; |
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293 } |
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294 |
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295 adata = (AwtGraphicsConfigDataPtr) JNU_GetLongFieldAsPtr(env, xgc, x11GraphicsConfigIDs.aData); |
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296 DASSERT(adata != NULL); |
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297 |
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298 AWT_LOCK(); |
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299 |
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300 rootWindow = XRootWindow(awt_display, adata->awt_visInfo.screen); |
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301 |
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302 if (!useGtk) { |
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303 if (hasXCompositeOverlayExtension(awt_display) && |
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304 isXCompositeDisplay(awt_display, adata->awt_visInfo.screen)) |
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305 { |
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306 rootWindow = compositeGetOverlayWindow(awt_display, rootWindow); |
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307 } |
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308 } |
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309 |
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310 if (!XGetWindowAttributes(awt_display, rootWindow, &attr) |
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311 || jx + jwidth <= attr.x |
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312 || attr.x + attr.width <= jx |
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313 || jy + jheight <= attr.y |
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314 || attr.y + attr.height <= jy) { |
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315 |
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316 AWT_UNLOCK(); |
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317 return; // Does not intersect with root window |
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318 } |
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319 |
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320 gboolean gtk_failed = TRUE; |
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321 jint _x, _y; |
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322 |
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323 jint x = MAX(jx, attr.x); |
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324 jint y = MAX(jy, attr.y); |
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325 jint width = MIN(jx + jwidth, attr.x + attr.width) - x; |
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326 jint height = MIN(jy + jheight, attr.y + attr.height) - y; |
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327 |
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328 int dx = attr.x > jx ? attr.x - jx : 0; |
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329 int dy = attr.y > jy ? attr.y - jy : 0; |
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330 |
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331 int index; |
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332 |
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333 if (useGtk) { |
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334 gtk->gdk_threads_enter(); |
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335 gtk_failed = gtk->get_drawable_data(env, pixelArray, x, y, width, |
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336 height, jwidth, dx, dy, 1); |
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337 gtk->gdk_threads_leave(); |
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338 } |
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339 |
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340 if (gtk_failed) { |
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341 image = getWindowImage(awt_display, rootWindow, x, y, width, height); |
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342 |
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343 ary = (*env)->GetPrimitiveArrayCritical(env, pixelArray, NULL); |
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344 |
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345 if (!ary) { |
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346 XDestroyImage(image); |
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347 AWT_UNLOCK(); |
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348 return; |
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349 } |
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350 |
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351 /* convert to Java ARGB pixels */ |
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352 for (_y = 0; _y < height; _y++) { |
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353 for (_x = 0; _x < width; _x++) { |
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354 jint pixel = (jint) XGetPixel(image, _x, _y); |
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355 /* Note ignore upper |
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356 * 32-bits on 64-bit |
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357 * OSes. |
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358 */ |
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359 pixel |= 0xff000000; /* alpha - full opacity */ |
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360 |
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361 index = (_y + dy) * jwidth + (_x + dx); |
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362 ary[index] = pixel; |
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363 } |
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364 } |
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365 |
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366 XDestroyImage(image); |
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367 (*env)->ReleasePrimitiveArrayCritical(env, pixelArray, ary, 0); |
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368 } |
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369 AWT_UNLOCK(); |
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370 } |
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371 |
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372 JNIEXPORT void JNICALL |
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373 Java_sun_awt_X11_XRobotPeer_keyPressImpl (JNIEnv *env, |
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374 jclass cls, |
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375 jint keycode) { |
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376 |
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377 AWT_LOCK(); |
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378 |
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379 DTRACE_PRINTLN1("RobotPeer: keyPressImpl(%i)", keycode); |
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380 |
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381 XTestFakeKeyEvent(awt_display, |
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382 XKeysymToKeycode(awt_display, awt_getX11KeySym(keycode)), |
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383 True, |
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384 CurrentTime); |
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385 |
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386 XSync(awt_display, False); |
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387 |
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388 AWT_UNLOCK(); |
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389 |
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390 } |
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391 |
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392 JNIEXPORT void JNICALL |
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393 Java_sun_awt_X11_XRobotPeer_keyReleaseImpl (JNIEnv *env, |
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394 jclass cls, |
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395 jint keycode) { |
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396 AWT_LOCK(); |
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397 |
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398 DTRACE_PRINTLN1("RobotPeer: keyReleaseImpl(%i)", keycode); |
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399 |
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400 XTestFakeKeyEvent(awt_display, |
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401 XKeysymToKeycode(awt_display, awt_getX11KeySym(keycode)), |
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402 False, |
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403 CurrentTime); |
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404 |
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405 XSync(awt_display, False); |
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406 |
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407 AWT_UNLOCK(); |
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408 } |
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409 |
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410 JNIEXPORT void JNICALL |
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411 Java_sun_awt_X11_XRobotPeer_mouseMoveImpl (JNIEnv *env, |
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412 jclass cls, |
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413 jobject xgc, |
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414 jint root_x, |
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415 jint root_y) { |
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416 |
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417 AwtGraphicsConfigDataPtr adata; |
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418 |
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419 AWT_LOCK(); |
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420 |
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421 DTRACE_PRINTLN3("RobotPeer: mouseMoveImpl(%lx, %i, %i)", xgc, root_x, root_y); |
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422 |
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423 adata = (AwtGraphicsConfigDataPtr) JNU_GetLongFieldAsPtr(env, xgc, x11GraphicsConfigIDs.aData); |
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424 DASSERT(adata != NULL); |
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425 |
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426 XWarpPointer(awt_display, None, XRootWindow(awt_display, adata->awt_visInfo.screen), 0, 0, 0, 0, root_x, root_y); |
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427 XSync(awt_display, False); |
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428 |
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429 AWT_UNLOCK(); |
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430 } |
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431 |
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432 /* |
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433 * Function joining the code of mousePressImpl and mouseReleaseImpl |
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434 */ |
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435 void mouseAction(JNIEnv *env, |
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436 jclass cls, |
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437 jint buttonMask, |
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438 Bool isMousePress) |
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439 { |
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440 AWT_LOCK(); |
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441 |
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442 DTRACE_PRINTLN1("RobotPeer: mouseAction(%i)", buttonMask); |
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443 DTRACE_PRINTLN1("RobotPeer: mouseAction, press = %d", isMousePress); |
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444 |
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445 if (buttonMask & java_awt_event_InputEvent_BUTTON1_MASK || |
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446 buttonMask & java_awt_event_InputEvent_BUTTON1_DOWN_MASK ) |
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447 { |
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448 XTestFakeButtonEvent(awt_display, 1, isMousePress, CurrentTime); |
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449 } |
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450 if ((buttonMask & java_awt_event_InputEvent_BUTTON2_MASK || |
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451 buttonMask & java_awt_event_InputEvent_BUTTON2_DOWN_MASK) && |
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452 (num_buttons >= 2)) { |
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453 XTestFakeButtonEvent(awt_display, 2, isMousePress, CurrentTime); |
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454 } |
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455 if ((buttonMask & java_awt_event_InputEvent_BUTTON3_MASK || |
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456 buttonMask & java_awt_event_InputEvent_BUTTON3_DOWN_MASK) && |
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457 (num_buttons >= 3)) { |
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458 XTestFakeButtonEvent(awt_display, 3, isMousePress, CurrentTime); |
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459 } |
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460 |
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461 if (num_buttons > 3){ |
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462 int32_t i; |
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463 int32_t button = 0; |
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464 for (i = 3; i<num_buttons; i++){ |
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465 if ((buttonMask & masks[i])) { |
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466 // arrays starts from zero index => +1 |
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467 // users wants to affect 4 or 5 button but they are assigned |
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468 // to the wheel so => we have to shift it to the right by 2. |
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469 button = i + 3; |
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470 XTestFakeButtonEvent(awt_display, button, isMousePress, CurrentTime); |
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471 } |
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472 } |
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473 } |
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474 |
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475 XSync(awt_display, False); |
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476 AWT_UNLOCK(); |
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477 } |
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478 |
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479 JNIEXPORT void JNICALL |
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480 Java_sun_awt_X11_XRobotPeer_mousePressImpl (JNIEnv *env, |
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481 jclass cls, |
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482 jint buttonMask) { |
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483 mouseAction(env, cls, buttonMask, True); |
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484 } |
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485 |
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486 JNIEXPORT void JNICALL |
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487 Java_sun_awt_X11_XRobotPeer_mouseReleaseImpl (JNIEnv *env, |
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488 jclass cls, |
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489 jint buttonMask) { |
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490 mouseAction(env, cls, buttonMask, False); |
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491 } |
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492 |
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493 JNIEXPORT void JNICALL |
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494 Java_sun_awt_X11_XRobotPeer_mouseWheelImpl (JNIEnv *env, |
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495 jclass cls, |
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496 jint wheelAmt) { |
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497 /* Mouse wheel is implemented as a button press of button 4 and 5, so it */ |
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498 /* probably could have been hacked into robot_mouseButtonEvent, but it's */ |
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499 /* cleaner to give it its own command type, in case the implementation */ |
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500 /* needs to be changed later. -bchristi, 6/20/01 */ |
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501 |
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502 int32_t repeat = abs(wheelAmt); |
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503 int32_t button = wheelAmt < 0 ? 4 : 5; /* wheel up: button 4 */ |
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504 /* wheel down: button 5 */ |
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505 int32_t loopIdx; |
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506 |
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507 AWT_LOCK(); |
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508 |
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509 DTRACE_PRINTLN1("RobotPeer: mouseWheelImpl(%i)", wheelAmt); |
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510 |
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511 for (loopIdx = 0; loopIdx < repeat; loopIdx++) { /* do nothing for */ |
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512 /* wheelAmt == 0 */ |
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513 XTestFakeButtonEvent(awt_display, button, True, CurrentTime); |
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514 XTestFakeButtonEvent(awt_display, button, False, CurrentTime); |
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515 } |
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516 XSync(awt_display, False); |
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517 |
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518 AWT_UNLOCK(); |
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519 } |
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520 |
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521 JNIEXPORT void JNICALL |
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522 Java_sun_awt_X11_XRobotPeer_loadNativeLibraries (JNIEnv *env, jclass cls) { |
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523 initXCompositeFunctions(); |
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524 } |