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/* gtkclipboard.c |
/* gtkclipboard.c |
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Copyright (C) 1998, 1999 Free Software Foundation, Inc. |
Copyright (C) 1998, 1999, 2005 Free Software Foundation, Inc. |
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This file is part of GNU Classpath. |
This file is part of GNU Classpath. |
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exception statement from your version. */ |
exception statement from your version. */ |
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#include "jcl.h" |
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#include "gtkpeer.h" |
#include "gtkpeer.h" |
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#include "gnu_java_awt_peer_gtk_GtkClipboard.h" |
#include "gnu_java_awt_peer_gtk_GtkClipboard.h" |
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static jmethodID stringSelectionReceivedID; |
#define OBJECT_TARGET 1 |
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static jmethodID stringSelectionHandlerID; |
#define TEXT_TARGET 2 |
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static jmethodID selectionClearID; |
#define IMAGE_TARGET 3 |
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#define URI_TARGET 4 |
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static void selection_received_cb (GtkWidget *, GtkSelectionData *, |
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guint, gpointer); |
/* The clipboard and standard (string targets) shared with GtkSelection. */ |
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static void selection_get_cb (GtkWidget *, GtkSelectionData *, guint, |
GtkClipboard *cp_gtk_clipboard; |
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guint, gpointer); |
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static gint selection_clear_cb (GtkWidget *, GdkEventSelection *); |
jstring cp_gtk_stringTarget; |
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jstring cp_gtk_imageTarget; |
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static GtkWidget *clipboard; |
jstring cp_gtk_filesTarget; |
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static jobject cb_obj; |
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/* Simple id to keep track of the selection we are currently managing. */ |
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JNIEXPORT void JNICALL |
static int current_selection = 0; |
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Java_gnu_java_awt_peer_gtk_GtkClipboard_initNativeState (JNIEnv *env, |
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jobject obj) |
/* Whether we "own" the clipboard. And may clear it. */ |
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{ |
static int owner = 0; |
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gdk_threads_enter (); |
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static jclass gtk_clipboard_class; |
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if (!stringSelectionReceivedID) |
static jmethodID setSystemContentsID; |
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{ |
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jclass gtkclipboard; |
static jobject gtk_clipboard_instance = NULL; |
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static jmethodID provideContentID; |
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gtkclipboard = (*env)->FindClass (env, |
static jmethodID provideTextID; |
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"gnu/java/awt/peer/gtk/GtkClipboard"); |
static jmethodID provideImageID; |
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stringSelectionReceivedID = (*env)->GetMethodID (env, gtkclipboard, |
static jmethodID provideURIsID; |
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"stringSelectionReceived", |
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"(Ljava/lang/String;)V"); |
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stringSelectionHandlerID = (*env)->GetMethodID (env, gtkclipboard, |
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"stringSelectionHandler", |
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"()Ljava/lang/String;"); |
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selectionClearID = (*env)->GetMethodID (env, gtkclipboard, |
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"selectionClear", "()V"); |
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} |
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cb_obj = (*env)->NewGlobalRef (env, obj); |
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clipboard = gtk_window_new (GTK_WINDOW_TOPLEVEL); |
/* Called when clipboard owner changes. Used to update available targets. */ |
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#if GTK_MINOR_VERSION > 4 |
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g_signal_connect (G_OBJECT(clipboard), "selection_received", |
static void |
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G_CALLBACK (selection_received_cb), NULL); |
clipboard_owner_change_cb (GtkClipboard *clipboard __attribute__((unused)), |
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GdkEvent *event __attribute__((unused)), |
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g_signal_connect (G_OBJECT(clipboard), "selection_clear_event", |
gpointer user_data __attribute__((unused))) |
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G_CALLBACK (selection_clear_cb), NULL); |
{ |
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/* These are only interesting when we are not the owner. Otherwise |
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gtk_selection_add_target (clipboard, GDK_SELECTION_PRIMARY, |
we will have the set and clear functions doing the updating. */ |
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GDK_TARGET_STRING, 0); |
JNIEnv *env = cp_gtk_gdk_env (); |
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if (!owner) |
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g_signal_connect (G_OBJECT(clipboard), "selection_get", |
(*env)->CallStaticVoidMethod (env, gtk_clipboard_class, |
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G_CALLBACK (selection_get_cb), NULL); |
setSystemContentsID); |
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gdk_threads_leave (); |
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} |
} |
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#endif |
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JNIEXPORT void JNICALL |
JNIEXPORT jboolean JNICALL |
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Java_gnu_java_awt_peer_gtk_GtkClipboard_requestStringConversion |
Java_gnu_java_awt_peer_gtk_GtkClipboard_initNativeState (JNIEnv *env, |
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(JNIEnv *env __attribute__((unused)), jclass clazz __attribute__((unused))) |
jclass gtkclipboard, |
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jstring string, |
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jstring image, |
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jstring files) |
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{ |
{ |
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gdk_threads_enter (); |
GdkDisplay* display; |
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jboolean can_cache; |
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gtk_selection_convert (clipboard, GDK_SELECTION_PRIMARY, |
gtk_clipboard_class = gtkclipboard; |
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GDK_TARGET_STRING, GDK_CURRENT_TIME); |
setSystemContentsID = (*env)->GetStaticMethodID (env, gtk_clipboard_class, |
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"setSystemContents", |
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"()V"); |
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if (setSystemContentsID == NULL) |
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return JNI_FALSE; |
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cp_gtk_stringTarget = (*env)->NewGlobalRef(env, string); |
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cp_gtk_imageTarget = (*env)->NewGlobalRef(env, image); |
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cp_gtk_filesTarget = (*env)->NewGlobalRef(env, files); |
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gdk_threads_enter (); |
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cp_gtk_clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD); |
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display = gtk_clipboard_get_display (cp_gtk_clipboard); |
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/* Check for support for clipboard owner changes. */ |
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#if GTK_MINOR_VERSION > 4 |
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if (gdk_display_supports_selection_notification (display)) |
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{ |
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g_signal_connect (cp_gtk_clipboard, "owner-change", |
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G_CALLBACK (clipboard_owner_change_cb), NULL); |
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gdk_display_request_selection_notification (display, |
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GDK_SELECTION_CLIPBOARD); |
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can_cache = JNI_TRUE; |
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} |
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else |
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#endif |
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can_cache = JNI_FALSE; |
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gdk_threads_leave (); |
gdk_threads_leave (); |
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return can_cache; |
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} |
} |
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static void |
static void |
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selection_received_cb (GtkWidget *widget __attribute__((unused)), |
clipboard_get_func (GtkClipboard *clipboard __attribute__((unused)), |
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GtkSelectionData *selection_data __attribute__((unused)), |
GtkSelectionData *selection, |
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guint time __attribute__((unused)), |
guint info, |
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gpointer data __attribute__((unused))) |
gpointer user_data __attribute__((unused))) |
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{ |
{ |
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/* Check to see if retrieval succeeded */ |
JNIEnv *env = cp_gtk_gdk_env (); |
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if (selection_data->length < 0 |
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|| selection_data->type != GDK_SELECTION_TYPE_STRING) |
if (info == OBJECT_TARGET) |
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{ |
{ |
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gdk_threads_leave (); |
const gchar *target_name; |
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jstring target_string; |
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jbyteArray bytes; |
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jint len; |
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jbyte *barray; |
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target_name = gdk_atom_name (selection->target); |
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if (target_name == NULL) |
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return; |
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target_string = (*env)->NewStringUTF (env, target_name); |
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if (target_string == NULL) |
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return; |
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bytes = (*env)->CallObjectMethod(env, |
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gtk_clipboard_instance, |
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provideContentID, |
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target_string); |
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if (bytes == NULL) |
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return; |
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len = (*env)->GetArrayLength(env, bytes); |
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if (len <= 0) |
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return; |
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barray = (*env)->GetByteArrayElements(env, bytes, NULL); |
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if (barray == NULL) |
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return; |
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gtk_selection_data_set (selection, selection->target, 8, |
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(guchar *) barray, len); |
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(*cp_gtk_gdk_env())->CallVoidMethod (cp_gtk_gdk_env(), cb_obj, stringSelectionReceivedID, |
(*env)->ReleaseByteArrayElements(env, bytes, barray, 0); |
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NULL); |
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gdk_threads_enter (); |
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} |
} |
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else |
else if (info == TEXT_TARGET) |
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{ |
{ |
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char *str = (char *) selection_data->data; |
jstring string; |
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const gchar *text; |
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gdk_threads_leave (); |
int len; |
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string = (*env)->CallObjectMethod(env, |
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gtk_clipboard_instance, |
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provideTextID); |
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if (string == NULL) |
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return; |
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len = (*env)->GetStringUTFLength (env, string); |
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if (len == -1) |
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return; |
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text = (*env)->GetStringUTFChars (env, string, NULL); |
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if (text == NULL) |
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return; |
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(*cp_gtk_gdk_env())->CallVoidMethod (cp_gtk_gdk_env(), cb_obj, stringSelectionReceivedID, |
gtk_selection_data_set_text (selection, text, len); |
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(*cp_gtk_gdk_env())->NewStringUTF (cp_gtk_gdk_env(), str)); |
(*env)->ReleaseStringUTFChars (env, string, text); |
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gdk_threads_enter (); |
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} |
} |
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/* Images and URIs/Files support only available with gtk+2.6 or higher. */ |
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return; |
#if GTK_MINOR_VERSION > 4 |
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else if (info == IMAGE_TARGET) |
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{ |
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jobject gtkimage; |
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GdkPixbuf *pixbuf = NULL; |
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gtkimage = (*env)->CallObjectMethod(env, |
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gtk_clipboard_instance, |
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provideImageID); |
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if (gtkimage == NULL) |
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return; |
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pixbuf = cp_gtk_image_get_pixbuf (env, gtkimage); |
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if (pixbuf != NULL) |
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{ |
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gtk_selection_data_set_pixbuf (selection, pixbuf); |
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/* if the GtkImage is offscreen, this is a temporary pixbuf |
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which should be thrown out. */ |
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if(cp_gtk_image_is_offscreen (env, gtkimage) == JNI_TRUE) |
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gdk_pixbuf_unref (pixbuf); |
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} |
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} |
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else if (info == URI_TARGET) |
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{ |
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jobjectArray uris; |
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jint count; |
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int i; |
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gchar **list; |
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uris = (*env)->CallObjectMethod(env, |
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gtk_clipboard_instance, |
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provideURIsID); |
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if (uris == NULL) |
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return; |
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count = (*env)->GetArrayLength (env, uris); |
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if (count <= 0) |
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return; |
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list = (gchar **) JCL_malloc (env, (count + 1) * sizeof (gchar *)); |
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for (i = 0; i < count; i++) |
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{ |
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const char *text; |
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jstring uri; |
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/* Mark NULL in so case of some error we can find the end. */ |
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list[i] = NULL; |
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uri = (*env)->GetObjectArrayElement (env, uris, i); |
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if (uri == NULL) |
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break; |
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text = (*env)->GetStringUTFChars (env, uri, NULL); |
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if (text == NULL) |
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break; |
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list[i] = strdup (text); |
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(*env)->ReleaseStringUTFChars (env, uri, text); |
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} |
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if (i == count) |
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{ |
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list[count] = NULL; |
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gtk_selection_data_set_uris (selection, list); |
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} |
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for (i = 0; list[i] != NULL; i++) |
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free (list[i]); |
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JCL_free (env, list); |
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} |
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#endif |
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} |
} |
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static void |
static void |
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selection_get_cb (GtkWidget *widget __attribute__((unused)), |
clipboard_clear_func (GtkClipboard *clipboard __attribute__((unused)), |
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GtkSelectionData *selection_data, |
gpointer user_data) |
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guint info __attribute__((unused)), |
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guint time __attribute__((unused)), |
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gpointer data __attribute__((unused))) |
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{ |
{ |
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jstring jstr; |
if (owner && (int) user_data == current_selection) |
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const char *utf; |
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jsize utflen; |
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gdk_threads_leave (); |
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jstr = (*cp_gtk_gdk_env())->CallObjectMethod (cp_gtk_gdk_env(), cb_obj, |
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stringSelectionHandlerID); |
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gdk_threads_enter (); |
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if (!jstr) |
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{ |
{ |
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gtk_selection_data_set (selection_data, |
JNIEnv *env = cp_gtk_gdk_env(); |
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GDK_TARGET_STRING, 8, NULL, 0); |
owner = 0; |
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return; |
(*env)->CallStaticVoidMethod (env, gtk_clipboard_class, |
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setSystemContentsID); |
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} |
} |
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utflen = (*cp_gtk_gdk_env())->GetStringUTFLength (cp_gtk_gdk_env(), jstr); |
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utf = (*cp_gtk_gdk_env())->GetStringUTFChars (cp_gtk_gdk_env(), jstr, NULL); |
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gtk_selection_data_set (selection_data, GDK_TARGET_STRING, 8, |
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(const unsigned char*)utf, utflen); |
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(*cp_gtk_gdk_env())->ReleaseStringUTFChars (cp_gtk_gdk_env(), jstr, utf); |
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} |
} |
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JNIEXPORT void JNICALL |
JNIEXPORT void JNICALL |
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Java_gnu_java_awt_peer_gtk_GtkClipboard_selectionGet |
Java_gnu_java_awt_peer_gtk_GtkClipboard_advertiseContent |
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(JNIEnv *env, jclass clazz __attribute__((unused))) |
(JNIEnv *env, |
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jobject instance, |
277 |
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jobjectArray mime_array, |
278 |
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#if GTK_MINOR_VERSION > 4 |
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jboolean add_text, jboolean add_images, jboolean add_uris) |
280 |
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#else |
281 |
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jboolean add_text __attribute__((unused)), |
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jboolean add_images __attribute__((unused)), |
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jboolean add_uris __attribute__((unused))) |
284 |
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#endif |
285 |
{ |
{ |
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GdkWindow *owner; |
GtkTargetList *target_list; |
287 |
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GList *list; |
288 |
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GtkTargetEntry *targets; |
289 |
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gint n, i; |
290 |
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gdk_threads_enter (); |
gdk_threads_enter (); |
292 |
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target_list = gtk_target_list_new (NULL, 0); |
293 |
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/* if we already own the clipboard, we need to tell the old data object |
if (mime_array != NULL) |
295 |
that we're no longer going to be using him */ |
{ |
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owner = gdk_selection_owner_get (GDK_SELECTION_PRIMARY); |
n = (*env)->GetArrayLength (env, mime_array); |
297 |
if (owner && owner == clipboard->window) |
for (i = 0; i < n; i++) |
298 |
(*env)->CallVoidMethod (env, cb_obj, selectionClearID); |
{ |
299 |
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const char *text; |
300 |
gtk_selection_owner_set (clipboard, GDK_SELECTION_PRIMARY, GDK_CURRENT_TIME); |
jstring target; |
301 |
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GdkAtom atom; |
302 |
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303 |
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target = (*env)->GetObjectArrayElement (env, mime_array, i); |
304 |
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if (target == NULL) |
305 |
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break; |
306 |
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text = (*env)->GetStringUTFChars (env, target, NULL); |
307 |
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if (text == NULL) |
308 |
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break; |
309 |
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310 |
gdk_threads_leave (); |
atom = gdk_atom_intern (text, FALSE); |
311 |
} |
gtk_target_list_add (target_list, atom, 0, OBJECT_TARGET); |
312 |
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|
313 |
static gint |
(*env)->ReleaseStringUTFChars (env, target, text); |
314 |
selection_clear_cb (GtkWidget *widget __attribute__((unused)), |
} |
315 |
GdkEventSelection *event __attribute__((unused))) |
} |
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{ |
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gdk_threads_leave (); |
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(*cp_gtk_gdk_env())->CallVoidMethod (cp_gtk_gdk_env(), cb_obj, selectionClearID); |
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316 |
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317 |
gdk_threads_enter (); |
/* Add extra targets that gtk+ can provide/translate for us. */ |
318 |
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#if GTK_MINOR_VERSION > 4 |
319 |
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if (add_text) |
320 |
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gtk_target_list_add_text_targets (target_list, TEXT_TARGET); |
321 |
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if (add_images) |
322 |
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gtk_target_list_add_image_targets (target_list, IMAGE_TARGET, TRUE); |
323 |
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if (add_uris) |
324 |
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gtk_target_list_add_uri_targets (target_list, URI_TARGET); |
325 |
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#else |
326 |
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if (add_text) |
327 |
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gtk_target_list_add (target_list, |
328 |
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gdk_atom_intern ("STRING", FALSE), |
329 |
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0, TEXT_TARGET); |
330 |
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#endif |
331 |
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332 |
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333 |
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/* Turn list into a target table. */ |
334 |
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n = g_list_length (target_list->list); |
335 |
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if (n > 0) |
336 |
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{ |
337 |
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targets = g_new (GtkTargetEntry, n); |
338 |
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for (list = target_list->list, i = 0; |
339 |
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list != NULL; |
340 |
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list = list->next, i++) |
341 |
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{ |
342 |
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GtkTargetPair *pair = (GtkTargetPair *) list->data; |
343 |
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targets[i].target = gdk_atom_name (pair->target); |
344 |
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targets[i].flags = pair->flags; |
345 |
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targets[i].info = pair->info; |
346 |
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} |
347 |
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348 |
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/* Set the targets plus callback functions and ask for the clipboard |
349 |
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to be stored when the application exists if supported. */ |
350 |
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current_selection++; |
351 |
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if (gtk_clipboard_set_with_data (cp_gtk_clipboard, targets, n, |
352 |
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clipboard_get_func, |
353 |
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clipboard_clear_func, |
354 |
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(gpointer) current_selection)) |
355 |
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{ |
356 |
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owner = 1; |
357 |
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if (gtk_clipboard_instance == NULL) |
358 |
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{ |
359 |
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JNIEnv *env = cp_gtk_gdk_env (); |
360 |
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gtk_clipboard_instance = (*env)->NewGlobalRef(env, instance); |
361 |
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362 |
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provideContentID |
363 |
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= (*env)->GetMethodID (env, gtk_clipboard_class, |
364 |
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"provideContent", |
365 |
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"(Ljava/lang/String;)[B"); |
366 |
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if (provideContentID == NULL) |
367 |
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return; |
368 |
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|
369 |
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provideTextID |
370 |
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= (*env)->GetMethodID (env, gtk_clipboard_class, |
371 |
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"provideText", "()Ljava/lang/String;"); |
372 |
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if (provideTextID == NULL) |
373 |
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return; |
374 |
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|
375 |
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provideImageID |
376 |
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= (*env)->GetMethodID (env, gtk_clipboard_class, |
377 |
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"provideImage", |
378 |
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"()Lgnu/java/awt/peer/gtk/GtkImage;"); |
379 |
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if (provideImageID == NULL) |
380 |
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return; |
381 |
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|
382 |
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provideURIsID |
383 |
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= (*env)->GetMethodID (env, gtk_clipboard_class, |
384 |
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"provideURIs", |
385 |
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"()[Ljava/lang/String;"); |
386 |
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if (provideURIsID == NULL) |
387 |
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return; |
388 |
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} |
389 |
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#if GTK_MINOR_VERSION > 4 |
390 |
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gtk_clipboard_set_can_store (cp_gtk_clipboard, NULL, 0); |
391 |
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#endif |
392 |
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} |
393 |
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else |
394 |
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{ |
395 |
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owner = 0; |
396 |
|
(*env)->CallStaticVoidMethod (env, gtk_clipboard_class, |
397 |
|
setSystemContentsID); |
398 |
|
} |
399 |
|
|
400 |
|
for (i = 0; i < n; i++) |
401 |
|
g_free (targets[i].target); |
402 |
|
g_free (targets); |
403 |
|
} |
404 |
|
else if (owner) |
405 |
|
{ |
406 |
|
gtk_clipboard_clear (cp_gtk_clipboard); |
407 |
|
owner = 0; |
408 |
|
} |
409 |
|
|
410 |
return TRUE; |
gtk_target_list_unref (target_list); |
411 |
|
gdk_threads_leave (); |
412 |
} |
} |