J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2003-2005 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | #ifdef HEADLESS |
| 27 | #error This file should not be included in headless library |
| 28 | #endif |
| 29 | |
| 30 | #include "awt_p.h" |
| 31 | #include "awt_Component.h" |
| 32 | |
| 33 | #include <jni.h> |
| 34 | #include <jni_util.h> |
| 35 | |
| 36 | extern int awt_numScreens; |
| 37 | extern AwtScreenDataPtr x11Screens; |
| 38 | extern struct ComponentIDs componentIDs; |
| 39 | extern struct MComponentPeerIDs mComponentPeerIDs; |
| 40 | |
| 41 | /* |
| 42 | * Class: sun_awt_DefaultMouseInfoPeer |
| 43 | * Method: fillPointWithCoords |
| 44 | * Signature: (Ljava/awt/Point)I |
| 45 | */ |
| 46 | JNIEXPORT jint JNICALL |
| 47 | Java_sun_awt_DefaultMouseInfoPeer_fillPointWithCoords(JNIEnv *env, jclass cls, |
| 48 | jobject point) |
| 49 | { |
| 50 | static jclass pointClass = NULL; |
| 51 | jclass pointClassLocal; |
| 52 | static jfieldID xID, yID; |
| 53 | Window rootWindow, childWindow; |
| 54 | int i; |
| 55 | int32_t xr, yr, xw, yw; |
| 56 | uint32_t keys; |
| 57 | BOOL pointerFound; |
| 58 | |
| 59 | AWT_LOCK(); |
| 60 | if (pointClass == NULL) { |
| 61 | pointClassLocal = (*env)->FindClass(env, "java/awt/Point"); |
| 62 | DASSERT(pointClassLocal != NULL); |
| 63 | if (pointClassLocal == NULL) { |
| 64 | AWT_UNLOCK(); |
| 65 | return (jint)0; |
| 66 | } |
| 67 | pointClass = (jclass)(*env)->NewGlobalRef(env, pointClassLocal); |
| 68 | (*env)->DeleteLocalRef(env, pointClassLocal); |
| 69 | xID = (*env)->GetFieldID(env, pointClass, "x", "I"); |
| 70 | yID = (*env)->GetFieldID(env, pointClass, "y", "I"); |
| 71 | } |
| 72 | |
| 73 | for (i = 0; i < awt_numScreens; i++) { |
| 74 | pointerFound = XQueryPointer(awt_display, x11Screens[i].root, |
| 75 | &rootWindow, &childWindow, |
| 76 | &xr, &yr, &xw, &yw, &keys); |
| 77 | if (pointerFound) { |
| 78 | (*env)->SetIntField(env, point, xID, xr); |
| 79 | (*env)->SetIntField(env, point, yID, yr); |
| 80 | AWT_UNLOCK(); |
| 81 | return (jint)i; |
| 82 | } |
| 83 | } |
| 84 | /* This should never happen */ |
| 85 | DASSERT(FALSE); |
| 86 | AWT_UNLOCK(); |
| 87 | return (jint)0; |
| 88 | } |
| 89 | |
| 90 | /* |
| 91 | * Class: sun_awt_DefaultMouseInfoPeer |
| 92 | * Method: isWindowUnderMouse |
| 93 | * Signature: (Ljava/awt/Window)Z |
| 94 | */ |
| 95 | JNIEXPORT jboolean JNICALL Java_sun_awt_DefaultMouseInfoPeer_isWindowUnderMouse |
| 96 | (JNIEnv * env, jclass cls, jobject window) |
| 97 | { |
| 98 | Window rootWindow = None, parentWindow = None, siblingWindow = None; |
| 99 | Window * children = NULL; |
| 100 | int i = 0; |
| 101 | int is_the_same_screen = 0; |
| 102 | int32_t xr = 0, yr = 0, xw = 0, yw = 0; |
| 103 | uint32_t keys = 0; |
| 104 | uint32_t nchildren = 0; |
| 105 | BOOL pointerFound = 0; |
| 106 | struct FrameData *wdata = NULL; |
| 107 | jobject winPeer = NULL; |
| 108 | |
| 109 | if ((*env)->EnsureLocalCapacity(env, 1) < 0) { |
| 110 | return JNI_FALSE; |
| 111 | } |
| 112 | winPeer = (*env)->GetObjectField(env, window, componentIDs.peer); |
| 113 | if (JNU_IsNull(env, winPeer)) { |
| 114 | return JNI_FALSE; |
| 115 | } |
| 116 | |
| 117 | wdata = (struct FrameData *) |
| 118 | JNU_GetLongFieldAsPtr(env, winPeer, mComponentPeerIDs.pData); |
| 119 | (*env)->DeleteLocalRef(env, winPeer); |
| 120 | |
| 121 | if (wdata == NULL) { |
| 122 | return JNI_FALSE; |
| 123 | } |
| 124 | |
| 125 | AWT_LOCK(); |
| 126 | |
| 127 | XQueryTree(awt_display, XtWindow(wdata->winData.comp.widget), |
| 128 | &rootWindow, &parentWindow, &children, &nchildren); |
| 129 | |
| 130 | is_the_same_screen = XQueryPointer(awt_display, parentWindow, |
| 131 | &rootWindow, &siblingWindow, &xr, &yr, &xw, &yw, &keys); |
| 132 | |
| 133 | if (siblingWindow == XtWindow(wdata->winData.comp.widget) && is_the_same_screen) { |
| 134 | AWT_UNLOCK(); |
| 135 | return JNI_TRUE; |
| 136 | } |
| 137 | |
| 138 | AWT_UNLOCK(); |
| 139 | return JNI_FALSE ; |
| 140 | |
| 141 | } |