diff options
author | Tor Lillqvist <tml@src.gnome.org> | 1999-11-10 00:04:17 +0000 |
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committer | Tor Lillqvist <tml@src.gnome.org> | 1999-11-10 00:04:17 +0000 |
commit | 84477de7fcc559a85506c603315ea8927be831d1 (patch) | |
tree | c6dad2e2cea14806b577e199142a4e555ca7e0e0 /gdk/win32/gdkdnd-win32.c | |
parent | 78141c328fc16852f88d22e0ce3fb98ea5114a5d (diff) | |
download | gdk-pixbuf-84477de7fcc559a85506c603315ea8927be831d1.tar.gz |
Just renamed the Win32 backend files to *-win32.
Diffstat (limited to 'gdk/win32/gdkdnd-win32.c')
-rw-r--r-- | gdk/win32/gdkdnd-win32.c | 973 |
1 files changed, 0 insertions, 973 deletions
diff --git a/gdk/win32/gdkdnd-win32.c b/gdk/win32/gdkdnd-win32.c deleted file mode 100644 index da6da4bb5..000000000 --- a/gdk/win32/gdkdnd-win32.c +++ /dev/null @@ -1,973 +0,0 @@ -/* GDK - The GIMP Drawing Kit - * Copyright (C) 1995-1999 Peter Mattis, Spencer Kimball and Josh MacDonald - * Copyright (C) 1998-1999 Tor Lillqvist - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library 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 - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -/* - * Modified by the GTK+ Team and others 1997-1999. See the AUTHORS - * file for a list of people on the GTK+ Team. See the ChangeLog - * files for a list of changes. These files are distributed with - * GTK+ at ftp://ftp.gtk.org/pub/gtk/. - */ - -#include "config.h" - -#include <string.h> - -/* #define OLE2_DND */ - -#define INITGUID - -#include "gdkdnd.h" -#include "gdkproperty.h" -#include "gdkprivate.h" -#include "gdkx.h" - -#ifdef OLE2_DND -#include <ole2.h> -#else -#include <objbase.h> -#endif - -#ifdef _MSC_VER /* These aren't in mingw32 */ -#include <shlobj.h> -#include <shlguid.h> -#endif - -#ifndef _MSC_VER -static IID IID_IUnknown = { - 0x00000000, 0x0000, 0x0000, { 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x46 } }; -static IID IID_IDropSource = { - 0x00000121, 0x0000, 0x0000, { 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x46 } }; -static IID IID_IDropTarget = { - 0x00000122, 0x0000, 0x0000, { 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x46 } }; -#endif - -#include <gdk/gdk.h> - -typedef struct _GdkDragContextPrivate GdkDragContextPrivate; - -typedef enum { - GDK_DRAG_STATUS_DRAG, - GDK_DRAG_STATUS_MOTION_WAIT, - GDK_DRAG_STATUS_ACTION_WAIT, - GDK_DRAG_STATUS_DROP -} GtkDragStatus; - -typedef enum { - GDK_DRAG_SOURCE, - GDK_DRAG_TARGET -} GdkDragKind; - -#ifdef OLE2_DND - -#define PRINT_GUID(guid) \ - g_print ("guid = %.08x-%.04x-%.04x-%.02x%.02x-%.02x%.02x%.02x%.02x%.02x%.02x", \ - ((gulong *) guid)[0], \ - ((gushort *) guid)[2], \ - ((gushort *) guid)[3], \ - ((guchar *) guid)[8], \ - ((guchar *) guid)[9], \ - ((guchar *) guid)[10], \ - ((guchar *) guid)[11], \ - ((guchar *) guid)[12], \ - ((guchar *) guid)[13], \ - ((guchar *) guid)[14], \ - ((guchar *) guid)[15]); - - -#endif /* OLE2_DND */ - -/* Structure that holds information about a drag in progress. - * this is used on both source and destination sides. - */ -struct _GdkDragContextPrivate { - GdkDragContext context; - - guint ref_count; - - guint16 last_x; /* Coordinates from last event */ - guint16 last_y; - HWND dest_xid; - guint drag_status; /* Current status of drag */ -}; - -GdkDragContext *current_dest_drag = NULL; - -/* Drag Contexts */ - -static GList *contexts; - -GdkDragContext * -gdk_drag_context_new (void) -{ - GdkDragContextPrivate *result; - - result = g_new0 (GdkDragContextPrivate, 1); - - result->ref_count = 1; - - contexts = g_list_prepend (contexts, result); - - return (GdkDragContext *)result; -} - -void -gdk_drag_context_ref (GdkDragContext *context) -{ - g_return_if_fail (context != NULL); - - ((GdkDragContextPrivate *)context)->ref_count++; -} - -void -gdk_drag_context_unref (GdkDragContext *context) -{ - GdkDragContextPrivate *private = (GdkDragContextPrivate *)context; - - g_return_if_fail (context != NULL); - - private->ref_count--; - - GDK_NOTE (DND, g_print ("gdk_drag_context_unref: %d%s\n", - private->ref_count, - (private->ref_count == 0 ? " freeing" : ""))); - - if (private->ref_count == 0) - { - g_dataset_destroy (private); - - g_list_free (context->targets); - - if (context->source_window) - gdk_window_unref (context->source_window); - - if (context->dest_window) - gdk_window_unref (context->dest_window); - - contexts = g_list_remove (contexts, private); - g_free (private); - } -} - -#if 0 - -static GdkDragContext * -gdk_drag_context_find (gboolean is_source, - HWND source_xid, - HWND dest_xid) -{ - GList *tmp_list = contexts; - GdkDragContext *context; - - while (tmp_list) - { - context = (GdkDragContext *)tmp_list->data; - - if ((!context->is_source == !is_source) && - ((source_xid == None) || (context->source_window && - (GDK_WINDOW_XWINDOW (context->source_window) == source_xid))) && - ((dest_xid == None) || (context->dest_window && - (GDK_WINDOW_XWINDOW (context->dest_window) == dest_xid)))) - return context; - - tmp_list = tmp_list->next; - } - - return NULL; -} - -#endif - -typedef struct { -#ifdef OLE2_DND - IDropTarget idt; -#endif - GdkDragContext *context; -} target_drag_context; - -typedef struct { -#ifdef OLE2_DND - IDropSource ids; -#endif - GdkDragContext *context; -} source_drag_context; - -#ifdef OLE2_DND - -static ULONG STDMETHODCALLTYPE -m_add_ref_target (IDropTarget __RPC_FAR *This) -{ - target_drag_context *ctx = (target_drag_context *) This; - GdkDragContextPrivate *private = (GdkDragContextPrivate *) ctx->context; - - GDK_NOTE (DND, g_print ("m_add_ref_target\n")); - gdk_drag_context_ref (ctx->context); - - return private->ref_count; -} - -static HRESULT STDMETHODCALLTYPE -m_query_interface_target (IDropTarget __RPC_FAR *This, - REFIID riid, - void __RPC_FAR *__RPC_FAR *ppvObject) -{ - GDK_NOTE (DND, g_print ("m_query_interface_target\n")); - - *ppvObject = NULL; - - PRINT_GUID (riid); - - if (IsEqualGUID (riid, &IID_IUnknown)) - { - g_print ("...IUnknown\n"); - m_add_ref_target (This); - *ppvObject = This; - return S_OK; - } - else if (IsEqualGUID (riid, &IID_IDropTarget)) - { - g_print ("...IDropTarget\n"); - m_add_ref_target (This); - *ppvObject = This; - return S_OK; - } - else - { - g_print ("...Huh?\n"); - return E_NOINTERFACE; - } -} - -static ULONG STDMETHODCALLTYPE -m_release_target (IDropTarget __RPC_FAR *This) -{ - target_drag_context *ctx = (target_drag_context *) This; - GdkDragContextPrivate *private = (GdkDragContextPrivate *) ctx->context; - - GDK_NOTE (DND, g_print ("m_release_target\n")); - gdk_drag_context_unref (ctx->context); - - if (private->ref_count == 1) - { - gdk_drag_context_unref (ctx->context); - return 0; - } - else - return private->ref_count - 1; -} - -static HRESULT STDMETHODCALLTYPE -m_drag_enter (IDropTarget __RPC_FAR *This, - IDataObject __RPC_FAR *pDataObj, - DWORD grfKeyState, - POINTL pt, - DWORD __RPC_FAR *pdwEffect) -{ - GDK_NOTE (DND, g_print ("m_drag_enter\n")); - return E_UNEXPECTED; -} - -static HRESULT STDMETHODCALLTYPE -m_drag_over (IDropTarget __RPC_FAR *This, - DWORD grfKeyState, - POINTL pt, - DWORD __RPC_FAR *pdwEffect) -{ - GDK_NOTE (DND, g_print ("m_drag_over\n")); - return E_UNEXPECTED; -} - -static HRESULT STDMETHODCALLTYPE -m_drag_leave (IDropTarget __RPC_FAR *This) -{ - GDK_NOTE (DND, g_print ("m_drag_leave\n")); - return E_UNEXPECTED; -} - -static HRESULT STDMETHODCALLTYPE -m_drop (IDropTarget __RPC_FAR *This, - IDataObject __RPC_FAR *pDataObj, - DWORD grfKeyState, - POINTL pt, - DWORD __RPC_FAR *pdwEffect) -{ - GDK_NOTE (DND, g_print ("m_drop\n")); - return E_UNEXPECTED; -} - -static ULONG STDMETHODCALLTYPE -m_add_ref_source (IDropSource __RPC_FAR *This) -{ - source_drag_context *ctx = (source_drag_context *) This; - GdkDragContextPrivate *private = (GdkDragContextPrivate *) ctx->context; - - GDK_NOTE (DND, g_print ("m_add_ref_source\n")); - gdk_drag_context_ref (ctx->context); - - return private->ref_count; -} - -static HRESULT STDMETHODCALLTYPE -m_query_interface_source (IDropSource __RPC_FAR *This, - REFIID riid, - void __RPC_FAR *__RPC_FAR *ppvObject) -{ - GDK_NOTE (DND, g_print ("m_query_interface_source\n")); - - *ppvObject = NULL; - - PRINT_GUID (riid); - if (IsEqualGUID (riid, &IID_IUnknown)) - { - g_print ("...IUnknown\n"); - m_add_ref_source (This); - *ppvObject = This; - return S_OK; - } - else if (IsEqualGUID (riid, &IID_IDropSource)) - { - g_print ("...IDropSource\n"); - m_add_ref_source (This); - *ppvObject = This; - return S_OK; - } - else - { - g_print ("...Huh?\n"); - return E_NOINTERFACE; - } -} - -static ULONG STDMETHODCALLTYPE -m_release_source (IDropSource __RPC_FAR *This) -{ - source_drag_context *ctx = (source_drag_context *) This; - GdkDragContextPrivate *private = (GdkDragContextPrivate *) ctx->context; - - GDK_NOTE (DND, g_print ("m_release_source\n")); - gdk_drag_context_unref (ctx->context); - - if (private->ref_count == 1) - { - gdk_drag_context_unref (ctx->context); - return 0; - } - else - return private->ref_count - 1; -} - -static HRESULT STDMETHODCALLTYPE -m_query_continue_drag (IDropSource __RPC_FAR *This, - BOOL fEscapePressed, - DWORD grfKeyState) -{ - GDK_NOTE (DND, g_print ("m_query_continue_drag\n")); - return E_UNEXPECTED; -} - -static HRESULT STDMETHODCALLTYPE -m_give_feedback (IDropSource __RPC_FAR *This, - DWORD dwEffect) -{ - GDK_NOTE (DND, g_print ("m_give_feedback\n")); - return E_UNEXPECTED; -} - -static HRESULT STDMETHODCALLTYPE -m_query_interface_object (IDataObject __RPC_FAR *This, - REFIID riid, - void __RPC_FAR *__RPC_FAR *ppvObject) -{ - return E_UNEXPECTED; -} - -static ULONG STDMETHODCALLTYPE -m_add_ref_object (IDataObject __RPC_FAR *This) -{ - return E_UNEXPECTED; -} - -static ULONG STDMETHODCALLTYPE -m_release_object (IDataObject __RPC_FAR *This) -{ - return E_UNEXPECTED; -} - -static HRESULT STDMETHODCALLTYPE -m_get_data (IDataObject __RPC_FAR *This, - FORMATETC *pFormatEtc, - STGMEDIUM *pMedium) -{ - return E_UNEXPECTED; -} - -static HRESULT STDMETHODCALLTYPE -m_get_data_here (IDataObject __RPC_FAR *This, - FORMATETC *pFormatEtc, - STGMEDIUM *pMedium) -{ - return E_UNEXPECTED; -} - -static HRESULT STDMETHODCALLTYPE -m_query_get_data (IDataObject __RPC_FAR *This, - FORMATETC *pFormatEtc) -{ - return E_UNEXPECTED; -} - -static HRESULT STDMETHODCALLTYPE -m_get_canonical_format_etc (IDataObject __RPC_FAR *This, - FORMATETC *pFormatEtcIn, - FORMATETC *pFormatEtcOut) -{ - return E_UNEXPECTED; -} - -static HRESULT STDMETHODCALLTYPE -m_set_data (IDataObject __RPC_FAR *This, - FORMATETC *pFormatEtc, - STGMEDIUM *pMedium, - BOOL fRelease) -{ - return E_UNEXPECTED; -} - -static HRESULT STDMETHODCALLTYPE -m_enum_format_etc (IDataObject __RPC_FAR *This, - DWORD dwDirection, - IEnumFORMATETC **ppEnumFormatEtc) -{ - return E_UNEXPECTED; -} - -static HRESULT STDMETHODCALLTYPE - m_d_advise (IDataObject __RPC_FAR *This, - FORMATETC *pFormatetc, - DWORD advf, - IAdviseSink *pAdvSink, - DWORD *pdwConnection) -{ - return E_UNEXPECTED; -} - -static HRESULT STDMETHODCALLTYPE - m_d_unadvise (IDataObject __RPC_FAR *This, - DWORD dwConnection) -{ - return E_UNEXPECTED; -} - -static HRESULT STDMETHODCALLTYPE -m_enum_d_advise (IDataObject __RPC_FAR *This, - IEnumSTATDATA **ppenumAdvise) -{ - return E_UNEXPECTED; -} - -static IDropTargetVtbl idt_vtbl = { - m_query_interface_target, - m_add_ref_target, - m_release_target, - m_drag_enter, - m_drag_over, - m_drag_leave, - m_drop -}; - -static IDropSourceVtbl ids_vtbl = { - m_query_interface_source, - m_add_ref_source, - m_release_source, - m_query_continue_drag, - m_give_feedback -}; - -static IDataObjectVtbl ido_vtbl = { - m_query_interface_object, - m_add_ref_object, - m_release_object, - m_get_data, - m_get_data_here, - m_query_get_data, - m_get_canonical_format_etc, - m_set_data, - m_enum_format_etc, - m_d_advise, - m_d_unadvise, - m_enum_d_advise -}; - -#endif /* OLE2_DND */ - -static target_drag_context * -target_context_new (void) -{ - target_drag_context *result; - - result = g_new0 (target_drag_context, 1); - -#ifdef OLE2_DND - result->idt.lpVtbl = &idt_vtbl; -#endif - - result->context = gdk_drag_context_new (); - - return result; -} - -static source_drag_context * -source_context_new (void) -{ - source_drag_context *result; - - result = g_new0 (source_drag_context, 1); - -#ifdef OLE2_DND - result->ids.lpVtbl = &ids_vtbl; -#endif - - result->context = gdk_drag_context_new (); - - return result; -} - -#ifdef _MSC_VER - -/* From MS Knowledge Base article Q130698 */ - -/* resolve_link() fills the filename and path buffer - * with relevant information - * hWnd - calling app's window handle. - * - * lpszLinkName - name of the link file passed into the function. - * - * lpszPath - the buffer that will receive the file pathname. - */ - -static HRESULT -resolve_link(HWND hWnd, - LPCTSTR lpszLinkName, - LPSTR lpszPath, - LPSTR lpszDescription) -{ - HRESULT hres; - IShellLink *psl; - WIN32_FIND_DATA wfd; - - /* Assume Failure to start with: */ - *lpszPath = 0; - if (lpszDescription) - *lpszDescription = 0; - - /* Call CoCreateInstance to obtain the IShellLink interface - * pointer. This call fails if CoInitialize is not called, so it is - * assumed that CoInitialize has been called. - */ - - hres = CoCreateInstance (&CLSID_ShellLink, - NULL, - CLSCTX_INPROC_SERVER, - &IID_IShellLink, - (LPVOID *)&psl); - if (SUCCEEDED (hres)) - { - IPersistFile *ppf; - - /* The IShellLink interface supports the IPersistFile - * interface. Get an interface pointer to it. - */ - hres = psl->lpVtbl->QueryInterface (psl, - &IID_IPersistFile, - (LPVOID *) &ppf); - if (SUCCEEDED (hres)) - { - WORD wsz[MAX_PATH]; - - /* Convert the given link name string to wide character string. */ - MultiByteToWideChar (CP_ACP, 0, - lpszLinkName, - -1, wsz, MAX_PATH); - /* Load the file. */ - hres = ppf->lpVtbl->Load (ppf, wsz, STGM_READ); - if (SUCCEEDED (hres)) - { - /* Resolve the link by calling the Resolve() - * interface function. - */ - hres = psl->lpVtbl->Resolve(psl, hWnd, - SLR_ANY_MATCH | - SLR_NO_UI); - if (SUCCEEDED (hres)) - { - hres = psl->lpVtbl->GetPath (psl, lpszPath, - MAX_PATH, - (WIN32_FIND_DATA*)&wfd, - 0); - - if (SUCCEEDED (hres) && lpszDescription != NULL) - { - hres = psl->lpVtbl->GetDescription (psl, - lpszDescription, - MAX_PATH ); - - if (!SUCCEEDED (hres)) - return FALSE; - } - } - } - ppf->lpVtbl->Release (ppf); - } - psl->lpVtbl->Release (psl); - } - return SUCCEEDED (hres); -} - -#else - -#define resolve_link(hWnd, lpszLinkName, lpszPath, lpszDescription) FALSE - -#endif - -static GdkFilterReturn -gdk_dropfiles_filter (GdkXEvent *xev, - GdkEvent *event, - gpointer data) -{ - GdkDragContext *context; - GdkDragContextPrivate *private; - static GdkAtom text_uri_list_atom = GDK_NONE; - GString *result; - MSG *msg = (MSG *) xev; - HANDLE hdrop; - POINT pt; - gint nfiles, i, k; - guchar fileName[MAX_PATH], linkedFile[MAX_PATH]; - - if (text_uri_list_atom == GDK_NONE) - text_uri_list_atom = gdk_atom_intern ("text/uri-list", FALSE); - - if (msg->message == WM_DROPFILES) - { - GDK_NOTE (DND, g_print ("WM_DROPFILES: %#x\n", msg->hwnd)); - - context = gdk_drag_context_new (); - private = (GdkDragContextPrivate *) context; - context->protocol = GDK_DRAG_PROTO_WIN32_DROPFILES; - context->is_source = FALSE; - context->source_window = (GdkWindow *) gdk_root_parent; - context->dest_window = event->any.window; - gdk_window_ref (context->dest_window); - /* WM_DROPFILES drops are always file names */ - context->targets = - g_list_append (NULL, GUINT_TO_POINTER (text_uri_list_atom)); - current_dest_drag = context; - - event->dnd.type = GDK_DROP_START; - event->dnd.context = current_dest_drag; - gdk_drag_context_ref (current_dest_drag); - - hdrop = (HANDLE) msg->wParam; - DragQueryPoint (hdrop, &pt); - ClientToScreen (msg->hwnd, &pt); - - event->dnd.x_root = pt.x; - event->dnd.y_root = pt.y; - event->dnd.time = msg->time; - - nfiles = DragQueryFile (hdrop, 0xFFFFFFFF, NULL, 0); - - result = g_string_new (NULL); - for (i = 0; i < nfiles; i++) - { - g_string_append (result, "file:"); - DragQueryFile (hdrop, i, fileName, MAX_PATH); - - /* Resolve shortcuts */ - if (resolve_link (msg->hwnd, fileName, linkedFile, NULL)) - { - g_string_append (result, linkedFile); - GDK_NOTE (DND, g_print ("...%s link to %s\n", - fileName, linkedFile)); - } - else - { - g_string_append (result, fileName); - GDK_NOTE (DND, g_print ("...%s\n", fileName)); - } - g_string_append (result, "\015\012"); - } - gdk_sel_prop_store ((GdkWindow *) gdk_root_parent, - text_uri_list_atom, 8, result->str, result->len + 1); - - DragFinish (hdrop); - - return GDK_FILTER_TRANSLATE; - } - else - return GDK_FILTER_CONTINUE; -} - -/************************************************************* - ************************** Public API *********************** - *************************************************************/ - -void -gdk_dnd_init (void) -{ - HRESULT hres; -#ifdef OLE2_DND - hres = OleInitialize (NULL); - - if (! SUCCEEDED (hres)) - g_error ("OleInitialize failed"); -#endif -} - -void -gdk_dnd_exit (void) -{ -#ifdef OLE2_DND - OleUninitialize (); -#endif -} - -/* Source side */ - -static void -gdk_drag_do_leave (GdkDragContext *context, guint32 time) -{ - if (context->dest_window) - { - GDK_NOTE (DND, g_print ("gdk_drag_do_leave\n")); - gdk_window_unref (context->dest_window); - context->dest_window = NULL; - } -} - -GdkDragContext * -gdk_drag_begin (GdkWindow *window, - GList *targets) -{ - GList *tmp_list; - source_drag_context *ctx; - - g_return_val_if_fail (window != NULL, NULL); - - GDK_NOTE (DND, g_print ("gdk_drag_begin\n")); - - ctx = source_context_new (); - ctx->context->is_source = TRUE; - ctx->context->source_window = window; - gdk_window_ref (window); - - tmp_list = g_list_last (targets); - ctx->context->targets = NULL; - while (tmp_list) - { - ctx->context->targets = g_list_prepend (ctx->context->targets, - tmp_list->data); - tmp_list = tmp_list->prev; - } - - ctx->context->actions = 0; - -#if 0 - DoDragDrop (...); -#endif - return ctx->context; -} - -guint32 -gdk_drag_get_protocol (guint32 xid, - GdkDragProtocol *protocol) -{ - /* This isn't used */ - return 0; -} - -void -gdk_drag_find_window (GdkDragContext *context, - GdkWindow *drag_window, - gint x_root, - gint y_root, - GdkWindow **dest_window, - GdkDragProtocol *protocol) -{ - GdkDragContextPrivate *private = (GdkDragContextPrivate *)context; - GdkDrawablePrivate *drag_window_private = (GdkDrawablePrivate*) drag_window; - HWND recipient; - POINT pt; - - GDK_NOTE (DND, g_print ("gdk_drag_find_window: %#x +%d+%d\n", - (drag_window ? drag_window_private->xwindow : 0), - x_root, y_root)); - - pt.x = x_root; - pt.y = y_root; - recipient = WindowFromPoint (pt); - if (recipient == NULL) - *dest_window = NULL; - else - { - *dest_window = gdk_window_lookup (recipient); - if (*dest_window) - gdk_window_ref (*dest_window); - *protocol = GDK_DRAG_PROTO_WIN32_DROPFILES; - } -} - -gboolean -gdk_drag_motion (GdkDragContext *context, - GdkWindow *dest_window, - GdkDragProtocol protocol, - gint x_root, - gint y_root, - GdkDragAction suggested_action, - GdkDragAction possible_actions, - guint32 time) -{ - return FALSE; -} - -void -gdk_drag_drop (GdkDragContext *context, - guint32 time) -{ - g_return_if_fail (context != NULL); - - g_warning ("gdk_drag_drop: not implemented\n"); -} - -void -gdk_drag_abort (GdkDragContext *context, - guint32 time) -{ - g_return_if_fail (context != NULL); - - gdk_drag_do_leave (context, time); -} - -/* Destination side */ - -void -gdk_drag_status (GdkDragContext *context, - GdkDragAction action, - guint32 time) -{ - GDK_NOTE (DND, g_print ("gdk_drag_status\n")); -} - -void -gdk_drop_reply (GdkDragContext *context, - gboolean ok, - guint32 time) -{ -} - -void -gdk_drop_finish (GdkDragContext *context, - gboolean success, - guint32 time) -{ -} - -static GdkFilterReturn -gdk_destroy_filter (GdkXEvent *xev, - GdkEvent *event, - gpointer data) -{ -#ifdef OLE2_DND - MSG *msg = (MSG *) xev; - - if (msg->message == WM_DESTROY) - { - IDropTarget *idtp = (IDropTarget *) data; - - GDK_NOTE (DND, g_print ("gdk_destroy_filter: WM_DESTROY: %#x\n", msg->hwnd)); - RevokeDragDrop (msg->hwnd); - CoLockObjectExternal (idtp, FALSE, TRUE); - } -#endif - return GDK_FILTER_CONTINUE; -} - -void -gdk_window_register_dnd (GdkWindow *window) -{ - GdkDrawablePrivate *private = (GdkDrawablePrivate *) window; -#ifdef OLE2_DND - target_drag_context *context; - HRESULT hres; -#endif - - g_return_if_fail (window != NULL); - - GDK_NOTE (DND, g_print ("gdk_window_register_dnd: %#x\n", private->xwindow)); - - /* We always claim to accept dropped files, but in fact we might not, - * of course. This function is called in such a way that it cannot know - * whether the window (widget) in question actually accepts files - * (in gtk, data of type text/uri-list) or not. - */ - gdk_window_add_filter (window, gdk_dropfiles_filter, NULL); - DragAcceptFiles (private->xwindow, TRUE); - -#ifdef OLE2_DND - /* Register for OLE2 d&d */ - context = target_context_new (); - hres = CoLockObjectExternal ((IUnknown *) &context->idt, TRUE, FALSE); - if (!SUCCEEDED (hres)) - g_warning ("gdk_window_register_dnd: CoLockObjectExternal failed"); - else - { - hres = RegisterDragDrop (private->xwindow, &context->idt); - if (hres == DRAGDROP_E_ALREADYREGISTERED) - { - g_print ("DRAGDROP_E_ALREADYREGISTERED\n"); - CoLockObjectExternal ((IUnknown *) &context->idt, FALSE, FALSE); - } - else if (!SUCCEEDED (hres)) - g_warning ("gdk_window_register_dnd: RegisterDragDrop failed"); - else - { - gdk_window_add_filter (window, gdk_destroy_filter, &context->idt); - } - } -#endif -} - -/************************************************************* - * gdk_drag_get_selection: - * Returns the selection atom for the current source window - * arguments: - * - * results: - *************************************************************/ - -GdkAtom -gdk_drag_get_selection (GdkDragContext *context) -{ - if (context->protocol == GDK_DRAG_PROTO_WIN32_DROPFILES) - return gdk_win32_dropfiles_atom; - else if (context->protocol == GDK_DRAG_PROTO_OLE2) - return gdk_ole2_dnd_atom; - else - return GDK_NONE; -} |