649 lines
18 KiB
C
649 lines
18 KiB
C
/*
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* vim:ts=8:sw=3:sts=8:noexpandtab:cino=>5n-3f0^-2{2
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*/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif /* ifdef HAVE_CONFIG_H */
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#include <stdlib.h>
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#include <string.h>
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#include "Ecore.h"
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#include "ecore_x_private.h"
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#include "Ecore_X.h"
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#include "Ecore_X_Atoms.h"
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EAPI int ECORE_X_EVENT_XDND_ENTER = 0;
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EAPI int ECORE_X_EVENT_XDND_POSITION = 0;
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EAPI int ECORE_X_EVENT_XDND_STATUS = 0;
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EAPI int ECORE_X_EVENT_XDND_LEAVE = 0;
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EAPI int ECORE_X_EVENT_XDND_DROP = 0;
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EAPI int ECORE_X_EVENT_XDND_FINISHED = 0;
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static Ecore_X_DND_Source *_source = NULL;
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static Ecore_X_DND_Target *_target = NULL;
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static int _ecore_x_dnd_init_count = 0;
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typedef struct _Version_Cache_Item
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{
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Ecore_X_Window win;
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int ver;
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} Version_Cache_Item;
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static Version_Cache_Item *_version_cache = NULL;
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static int _version_cache_num = 0, _version_cache_alloc = 0;
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void
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_ecore_x_dnd_init(void)
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{
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if (!_ecore_x_dnd_init_count)
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{
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_source = calloc(1, sizeof(Ecore_X_DND_Source));
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_source->version = ECORE_X_DND_VERSION;
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_source->win = None;
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_source->dest = None;
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_source->state = ECORE_X_DND_SOURCE_IDLE;
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_source->prev.window = 0;
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_target = calloc(1, sizeof(Ecore_X_DND_Target));
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_target->win = None;
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_target->source = None;
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_target->state = ECORE_X_DND_TARGET_IDLE;
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ECORE_X_EVENT_XDND_ENTER = ecore_event_type_new();
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ECORE_X_EVENT_XDND_POSITION = ecore_event_type_new();
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ECORE_X_EVENT_XDND_STATUS = ecore_event_type_new();
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ECORE_X_EVENT_XDND_LEAVE = ecore_event_type_new();
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ECORE_X_EVENT_XDND_DROP = ecore_event_type_new();
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ECORE_X_EVENT_XDND_FINISHED = ecore_event_type_new();
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}
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_ecore_x_dnd_init_count++;
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} /* _ecore_x_dnd_init */
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void
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_ecore_x_dnd_shutdown(void)
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{
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_ecore_x_dnd_init_count--;
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if (_ecore_x_dnd_init_count > 0)
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return;
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if (_source)
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free(_source);
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_source = NULL;
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if (_target)
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free(_target);
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_target = NULL;
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_ecore_x_dnd_init_count = 0;
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} /* _ecore_x_dnd_shutdown */
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static int
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_ecore_x_dnd_converter_copy(char *target __UNUSED__,
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void *data,
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int size,
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void **data_ret,
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int *size_ret,
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Ecore_X_Atom *tprop,
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int *count)
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{
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XTextProperty text_prop;
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char *mystr;
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XICCEncodingStyle style = XTextStyle;
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if (!data || !size)
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return 0;
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mystr = calloc(1, size + 1);
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if (!mystr)
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return 0;
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memcpy(mystr, data, size);
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if (XmbTextListToTextProperty(_ecore_x_disp, &mystr, 1, style,
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&text_prop) == Success)
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{
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int bufsize = strlen((char *)text_prop.value) + 1;
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*data_ret = malloc(bufsize);
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memcpy(*data_ret, text_prop.value, bufsize);
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*size_ret = bufsize;
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XFree(text_prop.value);
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free(mystr);
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return 1;
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}
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else
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{
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free(mystr);
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return 0;
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}
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} /* _ecore_x_dnd_converter_copy */
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EAPI void
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ecore_x_dnd_aware_set(Ecore_X_Window win, int on)
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{
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Ecore_X_Atom prop_data = ECORE_X_DND_VERSION;
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LOGFN(__FILE__, __LINE__, __FUNCTION__);
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if (on)
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ecore_x_window_prop_property_set(win, ECORE_X_ATOM_XDND_AWARE,
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XA_ATOM, 32, &prop_data, 1);
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else
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ecore_x_window_prop_property_del(win, ECORE_X_ATOM_XDND_AWARE);
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} /* ecore_x_dnd_aware_set */
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EAPI int
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ecore_x_dnd_version_get(Ecore_X_Window win)
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{
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unsigned char *prop_data;
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int num;
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LOGFN(__FILE__, __LINE__, __FUNCTION__);
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// this looks hacky - and it is, but we need a way of caching info about
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// a window while dragging, because we literally query this every mouse
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// move and going to and from x multiple times per move is EXPENSIVE
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// and slows things down, puts lots of load on x etc.
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if (_source->state == ECORE_X_DND_SOURCE_DRAGGING)
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if (_version_cache)
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{
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int i;
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for (i = 0; i < _version_cache_num; i++)
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{
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if (_version_cache[i].win == win)
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return _version_cache[i].ver;
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}
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}
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if (ecore_x_window_prop_property_get(win, ECORE_X_ATOM_XDND_AWARE,
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XA_ATOM, 32, &prop_data, &num))
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{
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int version = (int)*prop_data;
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free(prop_data);
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if (_source->state == ECORE_X_DND_SOURCE_DRAGGING)
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{
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_version_cache_num++;
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if (_version_cache_num > _version_cache_alloc)
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_version_cache_alloc += 16;
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_version_cache = realloc(_version_cache,
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_version_cache_alloc *
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sizeof(Version_Cache_Item));
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_version_cache[_version_cache_num - 1].win = win;
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_version_cache[_version_cache_num - 1].ver = version;
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}
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return version;
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}
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if (_source->state == ECORE_X_DND_SOURCE_DRAGGING)
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{
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_version_cache_num++;
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if (_version_cache_num > _version_cache_alloc)
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_version_cache_alloc += 16;
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_version_cache =
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realloc(_version_cache, _version_cache_alloc *
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sizeof(Version_Cache_Item));
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_version_cache[_version_cache_num - 1].win = win;
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_version_cache[_version_cache_num - 1].ver = 0;
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}
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return 0;
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} /* ecore_x_dnd_version_get */
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EAPI int
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ecore_x_dnd_type_isset(Ecore_X_Window win, const char *type)
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{
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int num, i, ret = 0;
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unsigned char *data;
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Ecore_X_Atom *atoms, atom;
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LOGFN(__FILE__, __LINE__, __FUNCTION__);
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if (!ecore_x_window_prop_property_get(win, ECORE_X_ATOM_XDND_TYPE_LIST,
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XA_ATOM, 32, &data, &num))
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return ret;
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atom = ecore_x_atom_get(type);
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atoms = (Ecore_X_Atom *)data;
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for (i = 0; i < num; ++i)
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{
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if (atom == atoms[i])
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{
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ret = 1;
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break;
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}
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}
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XFree(data);
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return ret;
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} /* ecore_x_dnd_type_isset */
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EAPI void
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ecore_x_dnd_type_set(Ecore_X_Window win, const char *type, int on)
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{
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Ecore_X_Atom atom;
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Ecore_X_Atom *oldset = NULL, *newset = NULL;
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int i, j = 0, num = 0;
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unsigned char *data = NULL;
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unsigned char *old_data = NULL;
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LOGFN(__FILE__, __LINE__, __FUNCTION__);
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atom = ecore_x_atom_get(type);
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ecore_x_window_prop_property_get(win, ECORE_X_ATOM_XDND_TYPE_LIST,
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XA_ATOM, 32, &old_data, &num);
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oldset = (Ecore_X_Atom *)old_data;
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LOGFN(__FILE__, __LINE__, __FUNCTION__);
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if (on)
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{
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if (ecore_x_dnd_type_isset(win, type))
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{
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XFree(old_data);
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return;
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}
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newset = calloc(num + 1, sizeof(Ecore_X_Atom));
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if (!newset)
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return;
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data = (unsigned char *)newset;
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for (i = 0; i < num; i++)
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newset[i + 1] = oldset[i];
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/* prepend the new type */
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newset[0] = atom;
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ecore_x_window_prop_property_set(win, ECORE_X_ATOM_XDND_TYPE_LIST,
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XA_ATOM, 32, data, num + 1);
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}
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else
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{
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if (!ecore_x_dnd_type_isset(win, type))
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{
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XFree(old_data);
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return;
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}
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newset = calloc(num - 1, sizeof(Ecore_X_Atom));
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if (!newset)
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{
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XFree(old_data);
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return;
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}
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data = (unsigned char *)newset;
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for (i = 0; i < num; i++)
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if (oldset[i] != atom)
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newset[j++] = oldset[i];
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ecore_x_window_prop_property_set(win, ECORE_X_ATOM_XDND_TYPE_LIST,
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XA_ATOM, 32, data, num - 1);
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}
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XFree(oldset);
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free(newset);
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} /* ecore_x_dnd_type_set */
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EAPI void
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ecore_x_dnd_types_set(Ecore_X_Window win,
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const char **types,
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unsigned int num_types)
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{
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Ecore_X_Atom *newset = NULL;
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unsigned int i;
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unsigned char *data = NULL;
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LOGFN(__FILE__, __LINE__, __FUNCTION__);
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if (!num_types)
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ecore_x_window_prop_property_del(win, ECORE_X_ATOM_XDND_TYPE_LIST);
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else
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{
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newset = calloc(num_types, sizeof(Ecore_X_Atom));
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if (!newset)
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return;
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data = (unsigned char *)newset;
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for (i = 0; i < num_types; i++)
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{
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newset[i] = ecore_x_atom_get(types[i]);
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ecore_x_selection_converter_atom_add(newset[i],
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_ecore_x_dnd_converter_copy);
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}
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ecore_x_window_prop_property_set(win, ECORE_X_ATOM_XDND_TYPE_LIST,
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XA_ATOM, 32, data, num_types);
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free(newset);
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}
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} /* ecore_x_dnd_types_set */
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EAPI void
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ecore_x_dnd_actions_set(Ecore_X_Window win,
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Ecore_X_Atom *actions,
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unsigned int num_actions)
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{
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unsigned int i;
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unsigned char *data = NULL;
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LOGFN(__FILE__, __LINE__, __FUNCTION__);
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if (!num_actions)
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ecore_x_window_prop_property_del(win, ECORE_X_ATOM_XDND_ACTION_LIST);
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else
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{
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data = (unsigned char *)actions;
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for (i = 0; i < num_actions; i++)
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{
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ecore_x_selection_converter_atom_add(actions[i],
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_ecore_x_dnd_converter_copy);
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}
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ecore_x_window_prop_property_set(win, ECORE_X_ATOM_XDND_ACTION_LIST,
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XA_ATOM, 32, data, num_actions);
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}
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} /* ecore_x_dnd_actions_set */
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Ecore_X_DND_Source *
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_ecore_x_dnd_source_get(void)
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{
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return _source;
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} /* _ecore_x_dnd_source_get */
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Ecore_X_DND_Target *
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_ecore_x_dnd_target_get(void)
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{
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return _target;
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} /* _ecore_x_dnd_target_get */
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EAPI int
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ecore_x_dnd_begin(Ecore_X_Window source, unsigned char *data, int size)
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{
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LOGFN(__FILE__, __LINE__, __FUNCTION__);
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if (!ecore_x_dnd_version_get(source))
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return 0;
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/* Take ownership of XdndSelection */
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if (!ecore_x_selection_xdnd_set(source, data, size))
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return 0;
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if (_version_cache)
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{
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free(_version_cache);
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_version_cache = NULL;
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_version_cache_num = 0;
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_version_cache_alloc = 0;
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}
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ecore_x_window_shadow_tree_flush();
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_source->win = source;
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ecore_x_window_ignore_set(_source->win, 1);
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_source->state = ECORE_X_DND_SOURCE_DRAGGING;
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_source->time = _ecore_x_event_last_time;
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_source->prev.window = 0;
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/* Default Accepted Action: move */
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_source->action = ECORE_X_ATOM_XDND_ACTION_MOVE;
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_source->accepted_action = None;
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_source->dest = None;
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return 1;
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} /* ecore_x_dnd_begin */
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EAPI int
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ecore_x_dnd_drop(void)
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{
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XEvent xev;
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int status = 0;
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LOGFN(__FILE__, __LINE__, __FUNCTION__);
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if (_source->dest)
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{
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xev.xany.type = ClientMessage;
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xev.xany.display = _ecore_x_disp;
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xev.xclient.format = 32;
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xev.xclient.window = _source->dest;
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if (_source->will_accept)
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{
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xev.xclient.message_type = ECORE_X_ATOM_XDND_DROP;
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xev.xclient.data.l[0] = _source->win;
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xev.xclient.data.l[1] = 0;
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xev.xclient.data.l[2] = _source->time;
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XSendEvent(_ecore_x_disp, _source->dest, False, 0, &xev);
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_source->state = ECORE_X_DND_SOURCE_DROPPED;
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status = 1;
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}
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else
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{
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xev.xclient.message_type = ECORE_X_ATOM_XDND_LEAVE;
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xev.xclient.data.l[0] = _source->win;
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xev.xclient.data.l[1] = 0;
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XSendEvent(_ecore_x_disp, _source->dest, False, 0, &xev);
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_source->state = ECORE_X_DND_SOURCE_IDLE;
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}
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}
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else
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{
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/* Dropping on nothing */
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ecore_x_selection_xdnd_clear();
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_source->state = ECORE_X_DND_SOURCE_IDLE;
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}
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ecore_x_window_ignore_set(_source->win, 0);
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_source->prev.window = 0;
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return status;
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} /* ecore_x_dnd_drop */
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EAPI void
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ecore_x_dnd_send_status(int will_accept,
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int suppress,
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Ecore_X_Rectangle rectangle,
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Ecore_X_Atom action)
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{
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XEvent xev;
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if (_target->state == ECORE_X_DND_TARGET_IDLE)
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return;
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LOGFN(__FILE__, __LINE__, __FUNCTION__);
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memset(&xev, 0, sizeof(XEvent));
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_target->will_accept = will_accept;
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xev.xclient.type = ClientMessage;
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xev.xclient.display = _ecore_x_disp;
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xev.xclient.message_type = ECORE_X_ATOM_XDND_STATUS;
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xev.xclient.format = 32;
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xev.xclient.window = _target->source;
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xev.xclient.data.l[0] = _target->win;
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xev.xclient.data.l[1] = 0;
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if (will_accept)
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xev.xclient.data.l[1] |= 0x1UL;
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if (!suppress)
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xev.xclient.data.l[1] |= 0x2UL;
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/* Set rectangle information */
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xev.xclient.data.l[2] = rectangle.x;
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xev.xclient.data.l[2] <<= 16;
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xev.xclient.data.l[2] |= rectangle.y;
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xev.xclient.data.l[3] = rectangle.width;
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xev.xclient.data.l[3] <<= 16;
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xev.xclient.data.l[3] |= rectangle.height;
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if (will_accept)
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{
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xev.xclient.data.l[4] = action;
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_target->accepted_action = action;
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}
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else
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{
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xev.xclient.data.l[4] = None;
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_target->accepted_action = action;
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}
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XSendEvent(_ecore_x_disp, _target->source, False, 0, &xev);
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} /* ecore_x_dnd_send_status */
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EAPI void
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ecore_x_dnd_send_finished(void)
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{
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XEvent xev;
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if (_target->state == ECORE_X_DND_TARGET_IDLE)
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return;
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LOGFN(__FILE__, __LINE__, __FUNCTION__);
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xev.xany.type = ClientMessage;
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xev.xany.display = _ecore_x_disp;
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xev.xclient.message_type = ECORE_X_ATOM_XDND_FINISHED;
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xev.xclient.format = 32;
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xev.xclient.window = _target->source;
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xev.xclient.data.l[0] = _target->win;
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xev.xclient.data.l[1] = 0;
|
|
xev.xclient.data.l[2] = 0;
|
|
if (_target->will_accept)
|
|
{
|
|
xev.xclient.data.l[1] |= 0x1UL;
|
|
xev.xclient.data.l[2] = _target->accepted_action;
|
|
}
|
|
|
|
XSendEvent(_ecore_x_disp, _target->source, False, 0, &xev);
|
|
|
|
_target->state = ECORE_X_DND_TARGET_IDLE;
|
|
} /* ecore_x_dnd_send_finished */
|
|
|
|
void
|
|
ecore_x_dnd_source_action_set(Ecore_X_Atom action)
|
|
{
|
|
_source->action = action;
|
|
if (_source->prev.window)
|
|
_ecore_x_dnd_drag(_source->prev.window, _source->prev.x, _source->prev.y);
|
|
} /* ecore_x_dnd_source_action_set */
|
|
|
|
Ecore_X_Atom
|
|
ecore_x_dnd_source_action_get(void)
|
|
{
|
|
return _source->action;
|
|
} /* ecore_x_dnd_source_action_get */
|
|
|
|
void
|
|
_ecore_x_dnd_drag(Ecore_X_Window root, int x, int y)
|
|
{
|
|
XEvent xev;
|
|
Ecore_X_Window win;
|
|
Ecore_X_Window *skip;
|
|
int num;
|
|
|
|
if (_source->state != ECORE_X_DND_SOURCE_DRAGGING)
|
|
return;
|
|
|
|
/* Preinitialize XEvent struct */
|
|
memset(&xev, 0, sizeof(XEvent));
|
|
xev.xany.type = ClientMessage;
|
|
xev.xany.display = _ecore_x_disp;
|
|
xev.xclient.format = 32;
|
|
|
|
/* Attempt to find a DND-capable window under the cursor */
|
|
skip = ecore_x_window_ignore_list(&num);
|
|
// WARNING - this function is HEAVY. it goes to and from x a LOT walking the
|
|
// window tree - use the SHADOW version - makes a 1-off tree copy, then uses
|
|
// that instead.
|
|
// win = ecore_x_window_at_xy_with_skip_get(x, y, skip, num);
|
|
win = ecore_x_window_shadow_tree_at_xy_with_skip_get(root, x, y, skip, num);
|
|
|
|
// NOTE: This now uses the shadow version to find parent windows
|
|
// while ((win) && !(ecore_x_dnd_version_get(win)))
|
|
// win = ecore_x_window_parent_get(win);
|
|
while ((win) && !(ecore_x_dnd_version_get(win)))
|
|
win = ecore_x_window_shadow_parent_get(root, win);
|
|
|
|
/* Send XdndLeave to current destination window if we have left it */
|
|
if ((_source->dest) && (win != _source->dest))
|
|
{
|
|
xev.xclient.window = _source->dest;
|
|
xev.xclient.message_type = ECORE_X_ATOM_XDND_LEAVE;
|
|
xev.xclient.data.l[0] = _source->win;
|
|
xev.xclient.data.l[1] = 0;
|
|
|
|
XSendEvent(_ecore_x_disp, _source->dest, False, 0, &xev);
|
|
_source->suppress = 0;
|
|
}
|
|
|
|
if (win)
|
|
{
|
|
int x1, x2, y1, y2;
|
|
|
|
_source->version = MIN(ECORE_X_DND_VERSION,
|
|
ecore_x_dnd_version_get(win));
|
|
if (win != _source->dest)
|
|
{
|
|
int i;
|
|
unsigned char *data;
|
|
Ecore_X_Atom *types;
|
|
|
|
ecore_x_window_prop_property_get(_source->win,
|
|
ECORE_X_ATOM_XDND_TYPE_LIST,
|
|
XA_ATOM,
|
|
32,
|
|
&data,
|
|
&num);
|
|
types = (Ecore_X_Atom *)data;
|
|
|
|
/* Entered new window, send XdndEnter */
|
|
xev.xclient.window = win;
|
|
xev.xclient.message_type = ECORE_X_ATOM_XDND_ENTER;
|
|
xev.xclient.data.l[0] = _source->win;
|
|
xev.xclient.data.l[1] = 0;
|
|
if (num > 3)
|
|
xev.xclient.data.l[1] |= 0x1UL;
|
|
else
|
|
xev.xclient.data.l[1] &= 0xfffffffeUL;
|
|
|
|
xev.xclient.data.l[1] |= ((unsigned long)_source->version) << 24;
|
|
|
|
for (i = 2; i < 5; i++)
|
|
xev.xclient.data.l[i] = 0;
|
|
for (i = 0; i < MIN(num, 3); ++i)
|
|
xev.xclient.data.l[i + 2] = types[i];
|
|
XFree(data);
|
|
XSendEvent(_ecore_x_disp, win, False, 0, &xev);
|
|
_source->await_status = 0;
|
|
_source->will_accept = 0;
|
|
}
|
|
|
|
/* Determine if we're still in the rectangle from the last status */
|
|
x1 = _source->rectangle.x;
|
|
x2 = _source->rectangle.x + _source->rectangle.width;
|
|
y1 = _source->rectangle.y;
|
|
y2 = _source->rectangle.y + _source->rectangle.height;
|
|
|
|
if ((!_source->await_status) ||
|
|
(!_source->suppress) ||
|
|
((x < x1) || (x > x2) || (y < y1) || (y > y2)))
|
|
{
|
|
xev.xclient.window = win;
|
|
xev.xclient.message_type = ECORE_X_ATOM_XDND_POSITION;
|
|
xev.xclient.data.l[0] = _source->win;
|
|
xev.xclient.data.l[1] = 0; /* Reserved */
|
|
xev.xclient.data.l[2] = ((x << 16) & 0xffff0000) | (y & 0xffff);
|
|
xev.xclient.data.l[3] = _source->time; /* Version 1 */
|
|
xev.xclient.data.l[4] = _source->action; /* Version 2, Needs to be pre-set */
|
|
XSendEvent(_ecore_x_disp, win, False, 0, &xev);
|
|
|
|
_source->await_status = 1;
|
|
}
|
|
}
|
|
|
|
_source->prev.x = x;
|
|
_source->prev.y = y;
|
|
_source->prev.window = root;
|
|
_source->dest = win;
|
|
} /* _ecore_x_dnd_drag */
|
|
|