Add some infrastructure to manage the clipboard in qemu. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 20210519053940.1888907-1-kraxel@redhat.com Message-Id: <20210519053940.1888907-3-kraxel@redhat.com>
		
			
				
	
	
		
			93 lines
		
	
	
		
			2.1 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			93 lines
		
	
	
		
			2.1 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
#include "qemu/osdep.h"
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#include "ui/clipboard.h"
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static NotifierList clipboard_notifiers =
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    NOTIFIER_LIST_INITIALIZER(clipboard_notifiers);
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void qemu_clipboard_peer_register(QemuClipboardPeer *peer)
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{
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    notifier_list_add(&clipboard_notifiers, &peer->update);
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}
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void qemu_clipboard_peer_unregister(QemuClipboardPeer *peer)
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{
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    notifier_remove(&peer->update);
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}
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void qemu_clipboard_update(QemuClipboardInfo *info)
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{
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    notifier_list_notify(&clipboard_notifiers, info);
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}
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QemuClipboardInfo *qemu_clipboard_info_new(QemuClipboardPeer *owner,
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                                           QemuClipboardSelection selection)
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{
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    QemuClipboardInfo *info = g_new0(QemuClipboardInfo, 1);
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    info->owner = owner;
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    info->selection = selection;
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    info->refcount = 1;
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    return info;
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}
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QemuClipboardInfo *qemu_clipboard_info_ref(QemuClipboardInfo *info)
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{
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    info->refcount++;
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    return info;
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}
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void qemu_clipboard_info_unref(QemuClipboardInfo *info)
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{
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    uint32_t type;
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    if (!info) {
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        return;
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    }
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    info->refcount--;
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    if (info->refcount > 0) {
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        return;
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    }
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    for (type = 0; type < QEMU_CLIPBOARD_TYPE__COUNT; type++) {
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        g_free(info->types[type].data);
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    }
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    g_free(info);
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}
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void qemu_clipboard_request(QemuClipboardInfo *info,
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                            QemuClipboardType type)
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{
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    if (info->types[type].data ||
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        info->types[type].requested ||
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        !info->types[type].available ||
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        !info->owner)
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        return;
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    info->types[type].requested = true;
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    info->owner->request(info, type);
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}
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void qemu_clipboard_set_data(QemuClipboardPeer *peer,
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                             QemuClipboardInfo *info,
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                             QemuClipboardType type,
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                             uint32_t size,
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                             void *data,
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                             bool update)
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{
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    if (!info ||
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        info->owner != peer) {
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        return;
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    }
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    g_free(info->types[type].data);
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    info->types[type].data = g_memdup(data, size);
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    info->types[type].size = size;
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    info->types[type].available = true;
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    if (update) {
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        qemu_clipboard_update(info);
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    }
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}
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