1 /* |
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2 * Copyright (c) 2003, 2008, 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 "awt_p.h" |
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31 #include "awt_Component.h" |
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32 |
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33 #include <jni.h> |
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34 #include <jni_util.h> |
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35 |
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36 extern int awt_numScreens; |
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37 extern AwtScreenDataPtr x11Screens; |
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38 extern struct ComponentIDs componentIDs; |
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39 extern struct MComponentPeerIDs mComponentPeerIDs; |
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40 |
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41 /* |
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42 * Class: sun_awt_DefaultMouseInfoPeer |
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43 * Method: fillPointWithCoords |
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44 * Signature: (Ljava/awt/Point)I |
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45 */ |
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46 JNIEXPORT jint JNICALL |
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47 Java_sun_awt_DefaultMouseInfoPeer_fillPointWithCoords(JNIEnv *env, jclass cls, |
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48 jobject point) |
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49 { |
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50 static jclass pointClass = NULL; |
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51 jclass pointClassLocal; |
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52 static jfieldID xID, yID; |
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53 Window rootWindow, childWindow; |
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54 int i; |
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55 int32_t xr, yr, xw, yw; |
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56 uint32_t keys; |
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57 Bool pointerFound; |
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58 |
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59 AWT_LOCK(); |
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60 if (pointClass == NULL) { |
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61 pointClassLocal = (*env)->FindClass(env, "java/awt/Point"); |
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62 DASSERT(pointClassLocal != NULL); |
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63 if (pointClassLocal == NULL) { |
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64 AWT_UNLOCK(); |
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65 return (jint)0; |
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66 } |
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67 pointClass = (jclass)(*env)->NewGlobalRef(env, pointClassLocal); |
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68 (*env)->DeleteLocalRef(env, pointClassLocal); |
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69 xID = (*env)->GetFieldID(env, pointClass, "x", "I"); |
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70 yID = (*env)->GetFieldID(env, pointClass, "y", "I"); |
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71 } |
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72 |
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73 for (i = 0; i < awt_numScreens; i++) { |
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74 pointerFound = XQueryPointer(awt_display, x11Screens[i].root, |
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75 &rootWindow, &childWindow, |
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76 &xr, &yr, &xw, &yw, &keys); |
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77 if (pointerFound) { |
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78 (*env)->SetIntField(env, point, xID, xr); |
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79 (*env)->SetIntField(env, point, yID, yr); |
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80 AWT_UNLOCK(); |
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81 return (jint)i; |
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82 } |
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83 } |
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84 /* This should never happen */ |
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85 DASSERT(FALSE); |
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86 AWT_UNLOCK(); |
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87 return (jint)0; |
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88 } |
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89 |
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90 /* |
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91 * Class: sun_awt_DefaultMouseInfoPeer |
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92 * Method: isWindowUnderMouse |
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93 * Signature: (Ljava/awt/Window)Z |
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94 */ |
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95 JNIEXPORT jboolean JNICALL Java_sun_awt_DefaultMouseInfoPeer_isWindowUnderMouse |
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96 (JNIEnv * env, jclass cls, jobject window) |
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97 { |
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98 Window rootWindow = None, parentWindow = None, siblingWindow = None; |
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99 Window * children = NULL; |
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100 int i = 0; |
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101 int is_the_same_screen = 0; |
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102 int32_t xr = 0, yr = 0, xw = 0, yw = 0; |
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103 uint32_t keys = 0; |
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104 uint32_t nchildren = 0; |
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105 Bool pointerFound = 0; |
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106 struct FrameData *wdata = NULL; |
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107 jobject winPeer = NULL; |
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108 |
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109 if ((*env)->EnsureLocalCapacity(env, 1) < 0) { |
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110 return JNI_FALSE; |
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111 } |
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112 winPeer = (*env)->GetObjectField(env, window, componentIDs.peer); |
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113 if (JNU_IsNull(env, winPeer)) { |
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114 return JNI_FALSE; |
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115 } |
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116 |
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117 wdata = (struct FrameData *) |
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118 JNU_GetLongFieldAsPtr(env, winPeer, mComponentPeerIDs.pData); |
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119 (*env)->DeleteLocalRef(env, winPeer); |
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120 |
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121 if (wdata == NULL) { |
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122 return JNI_FALSE; |
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123 } |
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124 |
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125 AWT_LOCK(); |
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126 |
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127 XQueryTree(awt_display, XtWindow(wdata->winData.comp.widget), |
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128 &rootWindow, &parentWindow, &children, &nchildren); |
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129 |
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130 is_the_same_screen = XQueryPointer(awt_display, parentWindow, |
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131 &rootWindow, &siblingWindow, &xr, &yr, &xw, &yw, &keys); |
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132 |
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133 if (siblingWindow == XtWindow(wdata->winData.comp.widget) && is_the_same_screen) { |
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134 AWT_UNLOCK(); |
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135 return JNI_TRUE; |
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136 } |
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137 |
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138 AWT_UNLOCK(); |
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139 return JNI_FALSE ; |
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140 |
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141 } |
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