| /* gtkclipboard.c |
| Copyright (C) 1998, 1999 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| #include "gtkpeer.h" |
| #include "gnu_java_awt_peer_gtk_GtkClipboard.h" |
| |
| jmethodID stringSelectionReceivedID; |
| jmethodID stringSelectionHandlerID; |
| jmethodID selectionClearID; |
| |
| void selection_received (GtkWidget *, GtkSelectionData *, guint, gpointer); |
| void selection_get (GtkWidget *, GtkSelectionData *, guint, guint, gpointer); |
| gint selection_clear (GtkWidget *, GdkEventSelection *); |
| |
| GtkWidget *clipboard; |
| jobject cb_obj; |
| |
| JNIEXPORT void JNICALL |
| Java_gnu_java_awt_peer_gtk_GtkClipboard_initNativeState (JNIEnv *env, |
| jobject obj) |
| { |
| if (!stringSelectionReceivedID) |
| { |
| jclass gtkclipboard; |
| |
| gtkclipboard = (*env)->FindClass (env, |
| "gnu/java/awt/peer/gtk/GtkClipboard"); |
| stringSelectionReceivedID = (*env)->GetMethodID (env, gtkclipboard, |
| "stringSelectionReceived", |
| "(Ljava/lang/String;)V"); |
| stringSelectionHandlerID = (*env)->GetMethodID (env, gtkclipboard, |
| "stringSelectionHandler", |
| "()Ljava/lang/String;"); |
| selectionClearID = (*env)->GetMethodID (env, gtkclipboard, |
| "selectionClear", "()V"); |
| } |
| |
| cb_obj = (*env)->NewGlobalRef (env, obj); |
| |
| gdk_threads_enter (); |
| clipboard = gtk_window_new (GTK_WINDOW_TOPLEVEL); |
| |
| g_signal_connect (G_OBJECT(clipboard), "selection_received", |
| GTK_SIGNAL_FUNC (selection_received), NULL); |
| |
| g_signal_connect (G_OBJECT(clipboard), "selection_clear_event", |
| GTK_SIGNAL_FUNC (selection_clear), NULL); |
| |
| gtk_selection_add_target (clipboard, GDK_SELECTION_PRIMARY, |
| GDK_TARGET_STRING, 0); |
| |
| g_signal_connect (G_OBJECT(clipboard), "selection_get", |
| GTK_SIGNAL_FUNC (selection_get), NULL); |
| |
| gdk_threads_leave (); |
| } |
| |
| JNIEXPORT void JNICALL |
| Java_gnu_java_awt_peer_gtk_GtkClipboard_requestStringConversion |
| (JNIEnv *env __attribute__((unused)), jclass clazz __attribute__((unused))) |
| { |
| gdk_threads_enter (); |
| gtk_selection_convert (clipboard, GDK_SELECTION_PRIMARY, |
| GDK_TARGET_STRING, GDK_CURRENT_TIME); |
| gdk_threads_leave (); |
| } |
| |
| void |
| selection_received (GtkWidget *widget __attribute__((unused)), |
| GtkSelectionData *selection_data __attribute__((unused)), |
| guint time __attribute__((unused)), |
| gpointer data __attribute__((unused))) |
| { |
| /* Check to see if retrieval succeeded */ |
| if (selection_data->length < 0 |
| || selection_data->type != GDK_SELECTION_TYPE_STRING) |
| { |
| (*gdk_env())->CallVoidMethod (gdk_env(), cb_obj, stringSelectionReceivedID, |
| NULL); |
| } |
| else |
| { |
| char *str = (char *) selection_data->data; |
| |
| (*gdk_env())->CallVoidMethod (gdk_env(), cb_obj, stringSelectionReceivedID, |
| (*gdk_env())->NewStringUTF (gdk_env(), str)); |
| } |
| |
| return; |
| } |
| |
| void |
| selection_get (GtkWidget *widget __attribute__((unused)), |
| GtkSelectionData *selection_data, |
| guint info __attribute__((unused)), |
| guint time __attribute__((unused)), |
| gpointer data __attribute__((unused))) |
| { |
| jstring jstr; |
| const char *utf; |
| jsize utflen; |
| |
| jstr = (*gdk_env())->CallObjectMethod (gdk_env(), cb_obj, |
| stringSelectionHandlerID); |
| |
| if (!jstr) |
| { |
| gtk_selection_data_set (selection_data, |
| GDK_TARGET_STRING, 8, NULL, 0); |
| return; |
| } |
| |
| utflen = (*gdk_env())->GetStringUTFLength (gdk_env(), jstr); |
| utf = (*gdk_env())->GetStringUTFChars (gdk_env(), jstr, NULL); |
| |
| gtk_selection_data_set (selection_data, GDK_TARGET_STRING, 8, |
| (const unsigned char*)utf, utflen); |
| |
| (*gdk_env())->ReleaseStringUTFChars (gdk_env(), jstr, utf); |
| } |
| |
| JNIEXPORT void JNICALL |
| Java_gnu_java_awt_peer_gtk_GtkClipboard_selectionGet |
| (JNIEnv *env, jclass clazz __attribute__((unused))) |
| { |
| GdkWindow *owner; |
| |
| gdk_threads_enter (); |
| |
| /* if we already own the clipboard, we need to tell the old data object |
| that we're no longer going to be using him */ |
| owner = gdk_selection_owner_get (GDK_SELECTION_PRIMARY); |
| if (owner && owner == clipboard->window) |
| (*env)->CallVoidMethod (env, cb_obj, selectionClearID); |
| |
| gtk_selection_owner_set (clipboard, GDK_SELECTION_PRIMARY, GDK_CURRENT_TIME); |
| |
| gdk_threads_leave (); |
| } |
| |
| gint |
| selection_clear (GtkWidget *widget __attribute__((unused)), |
| GdkEventSelection *event __attribute__((unused))) |
| { |
| (*gdk_env())->CallVoidMethod (gdk_env(), cb_obj, selectionClearID); |
| |
| return TRUE; |
| } |