src/lib/elm_cnp.c

   1 #ifdef HAVE_CONFIG_H
   2 # include "elementary_config.h"
   3 #endif
   4 #include <Elementary.h>
   5 #include "elm_priv.h"
   6
   7 #ifdef HAVE_MMAN_H
   8 # include <sys/mman.h>
   9 #endif
  10
  11 #ifdef HAVE_ELEMENTARY_X
  12
  13 #define ARRAYINIT(foo)  [foo] =
  14
  15 //#define DEBUGON 1
  16
  17 #ifdef DEBUGON
  18 # define cnp_debug(x...) fprintf(stderr, __FILE__": " x)
  19 #else
  20 # define cnp_debug(x...)
  21 #endif
  22
  23 typedef struct _Cnp_Selection Cnp_Selection;
  24 typedef struct _Escape        Escape;
  25 typedef struct _Tmp_Info      Tmp_Info;
  26 typedef struct _Cnp_Atom      Cnp_Atom;
  27 typedef struct _Saved_Type    Saved_Type;
  28 typedef struct _Dropable      Dropable;
  29
  30 typedef Eina_Bool (*Converter_Fn_Cb)     (char *target, void *data, int size, void **data_ret, int *size_ret, Ecore_X_Atom *ttype, int *typesize);
  31 typedef int       (*Response_Handler_Cb) (Cnp_Selection *sel, Ecore_X_Event_Selection_Notify *);
  32 typedef int       (*Notify_Handler_Cb)   (Cnp_Selection *sel, Ecore_X_Event_Selection_Notify *);
  33
  34 enum
  35 {
  36    CNP_ATOM_TARGETS = 0,
  37    CNP_ATOM_ATOM,
  38    CNP_ATOM_LISTING_ATOMS = CNP_ATOM_ATOM,
  39    CNP_ATOM_text_uri,
  40    CNP_ATOM_text_urilist,
  41    CNP_ATOM_text_x_vcard,
  42    CNP_ATOM_image_png,
  43    CNP_ATOM_image_jpeg,
  44    CNP_ATOM_image_bmp,
  45    CNP_ATOM_image_gif,
  46    CNP_ATOM_image_tiff,
  47    CNP_ATOM_image_svg,
  48    CNP_ATOM_image_xpm,
  49    CNP_ATOM_image_tga,
  50    CNP_ATOM_image_ppm,
  51    CNP_ATOM_XELM,
  52    CNP_ATOM_text_html_utf8,
  53    CNP_ATOM_text_html,
  54    CNP_ATOM_UTF8STRING,
  55    CNP_ATOM_STRING,
  56    CNP_ATOM_TEXT,
  57    CNP_ATOM_text_plain_utf8,
  58    CNP_ATOM_text_plain,
  59
  60    CNP_N_ATOMS,
  61 };
  62
  63 struct _Cnp_Selection
  64 {
  65    const char          *debug;
  66    Evas_Object         *widget;
  67    char                *selbuf;
  68    Evas_Object         *requestwidget;
  69    void                *udata;
  70    Elm_Sel_Format  requestformat;
  71    Elm_Drop_Cb          datacb;
  72    Eina_Bool      (*set)     (Ecore_X_Window, const void *data, int size);
  73    Eina_Bool      (*clear)   (void);
  74    void           (*request) (Ecore_X_Window, const char *target);
  75
  76    Elm_Sel_Format  format;
  77    Ecore_X_Selection    ecore_sel;
  78
  79    Eina_Bool         active : 1;
  80 };
  81
  82 struct _Escape
  83 {
  84    const char *escape;
  85    const char *value;
  86 };
  87
  88 struct _Tmp_Info
  89 {
  90    char *filename;
  91    void *map;
  92    int   fd;
  93    int   len;
  94 };
  95
  96 struct _Cnp_Atom
  97 {
  98    const char          *name;
  99    Elm_Sel_Format  formats;
 100    /* Called by ecore to do conversion */
 101    Converter_Fn_Cb      converter;
 102    Response_Handler_Cb  response;
 103    Notify_Handler_Cb    notify;
 104    /* Atom */
 105    Ecore_X_Atom         atom;
 106 };
 107
 108 struct _Saved_Type
 109 {
 110    const char  **types;
 111    char         *imgfile;
 112    int           ntypes;
 113    int           x, y;
 114    Eina_Bool     textreq: 1;
 115 };
 116
 117 struct _Dropable
 118 {
 119    Evas_Object         *obj;
 120    /* FIXME: Cache window */
 121    Elm_Sel_Format  types;
 122    Elm_Drop_Cb          dropcb;
 123    void                *cbdata;
 124 };
 125
 126 static Tmp_Info *elm_cnp_tempfile_create(int size);
 127 static int tmpinfo_free(Tmp_Info *tmp);
 128
 129 static Eina_Bool _elm_cnp_init(void);
 130 static Eina_Bool selection_clear(void *udata __UNUSED__, int type, void *event);
 131 static Eina_Bool selection_notify(void *udata __UNUSED__, int type, void *event);
 132
 133 static Eina_Bool targets_converter(char *target, void *data, int size, void **data_ret, int *size_ret, Ecore_X_Atom *ttype, int *typesize);
 134 static Eina_Bool text_converter(char *target, void *data, int size, void **data_ret, int *size_ret, Ecore_X_Atom *ttype, int *typesize);
 135 static Eina_Bool general_converter(char *target, void *data, int size, void **data_ret, int *size_ret, Ecore_X_Atom *ttype, int *typesize);
 136 static Eina_Bool image_converter(char *target, void *data, int size, void **data_ret, int *size_ret, Ecore_X_Atom *ttype, int *typesize);
 137 static Eina_Bool vcard_send(char *target, void *data, int size, void **data_ret, int *size_ret, Ecore_X_Atom *ttype, int *typesize);
 138
 139 static int response_handler_targets(Cnp_Selection *sel, Ecore_X_Event_Selection_Notify *);
 140
 141 static int notify_handler_targets(Cnp_Selection *sel, Ecore_X_Event_Selection_Notify *notify);
 142 static int notify_handler_text(Cnp_Selection *sel, Ecore_X_Event_Selection_Notify *notify);
 143 static int notify_handler_image(Cnp_Selection *sel, Ecore_X_Event_Selection_Notify *notify);
 144 static int notify_handler_uri(Cnp_Selection *sel, Ecore_X_Event_Selection_Notify *notify);
 145 static int notify_handler_html(Cnp_Selection *sel, Ecore_X_Event_Selection_Notify *notify);
 146 static int vcard_receive(Cnp_Selection *sed, Ecore_X_Event_Selection_Notify *notify);
 147
 148 static Eina_Bool pasteimage_append(char *file, Evas_Object *entry);
 149
 150 static Cnp_Atom atoms[CNP_N_ATOMS] = {
 151      [CNP_ATOM_TARGETS] = {
 152           "TARGETS",
 153           ELM_SEL_FORMAT_TARGETS,
 154           targets_converter,
 155           response_handler_targets,
 156           notify_handler_targets,
 157           0
 158      },
 159      [CNP_ATOM_ATOM] = {
 160           "ATOM", // for opera browser
 161           ELM_SEL_FORMAT_TARGETS,
 162           targets_converter,
 163           response_handler_targets,
 164           notify_handler_targets,
 165           0
 166      },
 167      [CNP_ATOM_XELM] =  {
 168           "application/x-elementary-markup",
 169           ELM_SEL_FORMAT_MARKUP,
 170           general_converter,
 171           NULL,
 172           NULL,
 173           0
 174      },
 175      [CNP_ATOM_text_uri] = {
 176           "text/uri",
 177           ELM_SEL_FORMAT_MARKUP | ELM_SEL_FORMAT_IMAGE, /* Either images or entries */
 178           general_converter,
 179           NULL,
 180           notify_handler_uri,
 181           0
 182      },
 183      [CNP_ATOM_text_urilist] = {
 184           "text/uri-list",
 185           ELM_SEL_FORMAT_IMAGE,
 186           general_converter,
 187           NULL,
 188           notify_handler_uri,
 189           0
 190      },
 191      [CNP_ATOM_text_x_vcard] = {
 192           "text/x-vcard",
 193           ELM_SEL_FORMAT_VCARD,
 194           vcard_send, NULL,
 195           vcard_receive, 0
 196      },
 197      [CNP_ATOM_image_png] = {
 198           "image/png",
 199           ELM_SEL_FORMAT_IMAGE,
 200           image_converter,
 201           NULL,
 202           notify_handler_image,
 203           0
 204      },
 205      [CNP_ATOM_image_jpeg] = {
 206           "image/jpeg",
 207           ELM_SEL_FORMAT_IMAGE,
 208           image_converter,
 209           NULL,
 210           notify_handler_image,/* Raw image data is the same */
 211           0
 212      },
 213      [CNP_ATOM_image_bmp] = {
 214           "image/x-ms-bmp",
 215           ELM_SEL_FORMAT_IMAGE,
 216           image_converter,
 217           NULL,
 218           notify_handler_image,/* Raw image data is the same */
 219           0
 220      },
 221      [CNP_ATOM_image_gif] = {
 222           "image/gif",
 223           ELM_SEL_FORMAT_IMAGE,
 224           image_converter,
 225           NULL,
 226           notify_handler_image,/* Raw image data is the same */
 227           0
 228      },
 229      [CNP_ATOM_image_tiff] = {
 230           "image/tiff",
 231           ELM_SEL_FORMAT_IMAGE,
 232           image_converter,
 233           NULL,
 234           notify_handler_image,/* Raw image data is the same */
 235           0
 236      },
 237      [CNP_ATOM_image_svg] = {
 238           "image/svg+xml",
 239           ELM_SEL_FORMAT_IMAGE,
 240           image_converter,
 241           NULL,
 242           notify_handler_image,/* Raw image data is the same */
 243           0
 244      },
 245      [CNP_ATOM_image_xpm] = {
 246           "image/x-xpixmap",
 247           ELM_SEL_FORMAT_IMAGE,
 248           image_converter,
 249           NULL,
 250           notify_handler_image,/* Raw image data is the same */
 251           0
 252      },
 253      [CNP_ATOM_image_tga] = {
 254           "image/x-tga",
 255           ELM_SEL_FORMAT_IMAGE,
 256           image_converter,
 257           NULL,
 258           notify_handler_image,/* Raw image data is the same */
 259           0
 260      },
 261      [CNP_ATOM_image_ppm] = {
 262           "image/x-portable-pixmap",
 263           ELM_SEL_FORMAT_IMAGE,
 264           image_converter,
 265           NULL,
 266           notify_handler_image,/* Raw image data is the same */
 267           0
 268      },
 269      [CNP_ATOM_text_html_utf8] = {
 270           "text/html;charset=utf-8",
 271           ELM_SEL_FORMAT_HTML,
 272           general_converter,
 273           NULL,
 274           notify_handler_html,
 275           0
 276      },
 277      [CNP_ATOM_text_html] = {
 278           "text/html",
 279           ELM_SEL_FORMAT_HTML,
 280           general_converter,
 281           NULL,
 282           notify_handler_html, /* No encoding: Webkit only */
 283           0
 284      },
 285      [CNP_ATOM_UTF8STRING] = {
 286           "UTF8_STRING",
 287           ELM_SEL_FORMAT_TEXT | ELM_SEL_FORMAT_MARKUP | ELM_SEL_FORMAT_HTML,
 288           text_converter,
 289           NULL,
 290           notify_handler_text,
 291           0
 292      },
 293      [CNP_ATOM_STRING] = {
 294           "STRING",
 295           ELM_SEL_FORMAT_TEXT | ELM_SEL_FORMAT_MARKUP | ELM_SEL_FORMAT_HTML,
 296           text_converter,
 297           NULL,
 298           notify_handler_text,
 299           0
 300      },
 301      [CNP_ATOM_TEXT] = {
 302           "TEXT",
 303           ELM_SEL_FORMAT_TEXT | ELM_SEL_FORMAT_MARKUP | ELM_SEL_FORMAT_HTML,
 304           text_converter,
 305           NULL,
 306           NULL,
 307           0
 308      },
 309      [CNP_ATOM_text_plain_utf8] = {
 310           "text/plain;charset=utf-8",
 311           ELM_SEL_FORMAT_TEXT | ELM_SEL_FORMAT_MARKUP | ELM_SEL_FORMAT_HTML,
 312           text_converter,
 313           NULL,
 314           NULL,
 315           0
 316      },
 317      [CNP_ATOM_text_plain] = {
 318           "text/plain",
 319           ELM_SEL_FORMAT_TEXT | ELM_SEL_FORMAT_MARKUP | ELM_SEL_FORMAT_HTML,
 320           text_converter,
 321           NULL,
 322           NULL,
 323           0
 324      },
 325 };
 326
 327 static Cnp_Selection selections[ELM_SEL_TYPE_CLIPBOARD + 1] = {
 328      ARRAYINIT(ELM_SEL_TYPE_PRIMARY) {
 329           .debug = "Primary",
 330           .ecore_sel = ECORE_X_SELECTION_PRIMARY,
 331           .set = ecore_x_selection_primary_set,
 332           .clear = ecore_x_selection_primary_clear,
 333           .request = ecore_x_selection_primary_request,
 334      },
 335      ARRAYINIT(ELM_SEL_TYPE_SECONDARY) {
 336           .debug = "Secondary",
 337           .ecore_sel = ECORE_X_SELECTION_SECONDARY,
 338           .set = ecore_x_selection_secondary_set,
 339           .clear = ecore_x_selection_secondary_clear,
 340           .request = ecore_x_selection_secondary_request,
 341      },
 342      ARRAYINIT(ELM_SEL_TYPE_XDND) {
 343           .debug = "XDnD",
 344           .ecore_sel = ECORE_X_SELECTION_XDND,
 345           .request = ecore_x_selection_xdnd_request,
 346      },
 347      ARRAYINIT(ELM_SEL_TYPE_CLIPBOARD) {
 348           .debug = "Clipboard",
 349           .ecore_sel = ECORE_X_SELECTION_CLIPBOARD,
 350           .set = ecore_x_selection_clipboard_set,
 351           .clear = ecore_x_selection_clipboard_clear,
 352           .request = ecore_x_selection_clipboard_request,
 353      },
 354 };
 355
 356 /* Data for DND in progress */
 357 static Saved_Type savedtypes =  { NULL, NULL, 0, 0, 0, EINA_FALSE };
 358
 359 static void (*dragdonecb) (void *data, Evas_Object *obj) = NULL;
 360 static void *dragdonedata = NULL;
 361
 362 static int _elm_cnp_init_count = 0;
 363
 364 /**
 365  * Drag & Drop functions
 366  */
 367
 368 /* FIXME: Way too many globals */
 369 static Eina_List *drops = NULL;
 370 static Evas_Object *dragwin = NULL;
 371 static int _dragx = 0, _dragy = 0;
 372 static Ecore_Event_Handler *handler_pos = NULL;
 373 static Ecore_Event_Handler *handler_drop = NULL;
 374 static Ecore_Event_Handler *handler_enter = NULL;
 375 static Ecore_Event_Handler *handler_status = NULL;
 376
 377 #endif
 378
 379 /* Stringshared, so I can just compare pointers later */
 380 static const char *text_uri;
 381
 382 Eina_Bool
 383 elm_selection_selection_has_owner(void)
 384 {
 385 #ifdef HAVE_ELEMENTARY_X
 386    return !!ecore_x_selection_owner_get(ECORE_X_ATOM_SELECTION_CLIPBOARD);
 387 #else
 388    return EINA_FALSE;
 389 #endif
 390 }
 391
 392 EAPI Eina_Bool
 393 elm_cnp_selection_set(Evas_Object *obj, Elm_Sel_Type selection,
 394                       Elm_Sel_Format format, const void *selbuf, size_t buflen)
 395 {
 396 #ifdef HAVE_ELEMENTARY_X
 397    Evas_Object *top = elm_widget_top_get(obj);
 398    Ecore_X_Window xwin;
 399    Cnp_Selection *sel;
 400
 401    if (top) xwin = elm_win_xwindow_get(top);
 402    else xwin = elm_win_xwindow_get(obj);
 403    if ((!xwin) || (selection > ELM_SEL_TYPE_CLIPBOARD))
 404      return EINA_FALSE;
 405    if (!_elm_cnp_init_count) _elm_cnp_init();
 406    if ((!selbuf) && (format != ELM_SEL_FORMAT_IMAGE))
 407      return elm_object_cnp_selection_clear(obj, selection);
 408
 409    sel = selections + selection;
 410
 411    sel->active = EINA_TRUE;
 412    sel->widget = obj;
 413    sel->set(xwin, &selection, sizeof(Elm_Sel_Type));
 414    sel->format = format;
 415
 416    if (selbuf)
 417      {
 418         if (format == ELM_SEL_FORMAT_IMAGE)
 419           {
 420              sel->selbuf = malloc(buflen+1);
 421              memcpy(sel->selbuf, selbuf, buflen);
 422           }
 423         else
 424           sel->selbuf = strdup((char*)selbuf);
 425      }
 426    else
 427      sel->selbuf = NULL;
 428
 429    return EINA_TRUE;
 430 #else
 431    return EINA_FALSE;
 432 #endif
 433 }
 434
 435 EAPI Eina_Bool
 436 elm_object_cnp_selection_clear(Evas_Object *obj, Elm_Sel_Type selection)
 437 {
 438 #ifdef HAVE_ELEMENTARY_X
 439    Cnp_Selection *sel;
 440
 441    if ((unsigned int)selection > (unsigned int)ELM_SEL_TYPE_CLIPBOARD)
 442      return EINA_FALSE;
 443    if (!_elm_cnp_init_count) _elm_cnp_init();
 444
 445    sel = selections + selection;
 446
 447    /* No longer this selection: Consider it gone! */
 448    if ((!sel->active) || (sel->widget != obj)) return EINA_TRUE;
 449
 450    sel->active = EINA_FALSE;
 451    sel->widget = NULL;
 452    if (sel->selbuf)
 453      {
 454         free(sel->selbuf);
 455         sel->selbuf = NULL;
 456      }
 457    sel->clear();
 458
 459    return EINA_TRUE;
 460 #else
 461    return EINA_FALSE;
 462 #endif
 463 }
 464
 465 EAPI Eina_Bool
 466 elm_cnp_selection_get(Evas_Object *obj, Elm_Sel_Type selection,
 467                       Elm_Sel_Format format, Elm_Drop_Cb datacb, void *udata)
 468 {
 469 #ifdef HAVE_ELEMENTARY_X
 470    Evas_Object *top;
 471    Cnp_Selection *sel;
 472
 473    if (selection > ELM_SEL_TYPE_CLIPBOARD)
 474      return EINA_FALSE;
 475    if (!_elm_cnp_init_count) _elm_cnp_init();
 476
 477    sel = selections + selection;
 478    top = elm_widget_top_get(obj);
 479    if (!top) return EINA_FALSE;
 480
 481    sel->requestformat = format;
 482    sel->requestwidget = obj;
 483    sel->request(elm_win_xwindow_get(top), ECORE_X_SELECTION_TARGET_TARGETS);
 484    sel->datacb = datacb;
 485    sel->udata = udata;
 486
 487    return EINA_TRUE;
 488 #else
 489    return EINA_FALSE;
 490 #endif
 491 }
 492
 493 #ifdef HAVE_ELEMENTARY_X
 494
 495 static Eina_Bool
 496 _elm_cnp_init(void)
 497 {
 498    int i;
 499
 500    if (_elm_cnp_init_count++) return EINA_TRUE;
 501    for (i = 0; i < CNP_N_ATOMS; i++)
 502      {
 503         atoms[i].atom = ecore_x_atom_get(atoms[i].name);
 504         ecore_x_selection_converter_atom_add(atoms[i].atom,
 505                                              atoms[i].converter);
 506      }
 507
 508    ecore_event_handler_add(ECORE_X_EVENT_SELECTION_CLEAR, selection_clear, NULL);
 509    ecore_event_handler_add(ECORE_X_EVENT_SELECTION_NOTIFY, selection_notify, NULL);
 510
 511    text_uri = eina_stringshare_add("text/uri-list");
 512    return EINA_TRUE;
 513 }
 514
 515 static Eina_Bool
 516 selection_clear(void *udata __UNUSED__, int type __UNUSED__, void *event)
 517 {
 518    Ecore_X_Event_Selection_Clear *ev = event;
 519    Cnp_Selection *sel;
 520    int i;
 521
 522    for (i = 0; i <= ELM_SEL_TYPE_CLIPBOARD; i++)
 523      {
 524         if (selections[i].ecore_sel == ev->selection) break;
 525      }
 526    cnp_debug("selection %d clear\n", i);
 527    /* Not me... Don't care */
 528    if (i > ELM_SEL_TYPE_CLIPBOARD) return ECORE_CALLBACK_PASS_ON;
 529
 530    sel = selections + i;
 531    sel->active = EINA_FALSE;
 532    sel->widget = NULL;
 533    if (sel->selbuf)
 534      {
 535         free(sel->selbuf);
 536         sel->selbuf = NULL;
 537      }
 538
 539    return ECORE_CALLBACK_PASS_ON;
 540 }
 541
 542
 543 /*
 544  * Response to a selection notify:
 545  *      - So we have asked for the selection list.
 546  *      - If it's the targets list, parse it, and fire of what we want,
 547  *      else it's the data we want.
 548  */
 549 static Eina_Bool
 550 selection_notify(void *udata __UNUSED__, int type __UNUSED__, void *event)
 551 {
 552    Ecore_X_Event_Selection_Notify *ev = event;
 553    Cnp_Selection *sel;
 554    int i;
 555
 556    cnp_debug("selection notify callback: %d\n",ev->selection);
 557    switch (ev->selection)
 558      {
 559       case ECORE_X_SELECTION_PRIMARY:
 560          sel = selections + ELM_SEL_TYPE_PRIMARY;
 561          break;
 562       case ECORE_X_SELECTION_SECONDARY:
 563          sel = selections + ELM_SEL_TYPE_SECONDARY;
 564          break;
 565       case ECORE_X_SELECTION_XDND:
 566          sel = selections + ELM_SEL_TYPE_XDND;
 567          break;
 568       case ECORE_X_SELECTION_CLIPBOARD:
 569          sel = selections + ELM_SEL_TYPE_CLIPBOARD;
 570          break;
 571       default:
 572          return ECORE_CALLBACK_PASS_ON;
 573      }
 574    cnp_debug("Target is %s\n", ev->target);
 575
 576    for (i = 0; i < CNP_N_ATOMS; i++)
 577      {
 578         if (!strcmp(ev->target, atoms[i].name))
 579           {
 580              if (atoms[i].notify)
 581                {
 582                   cnp_debug("Found something: %s\n", atoms[i].name);
 583                   atoms[i].notify(sel, ev);
 584                }
 585              else
 586                {
 587                   cnp_debug("Ignored: No handler!\n");
 588                }
 589           }
 590      }
 591
 592    return ECORE_CALLBACK_PASS_ON;
 593 }
 594
 595 static Elm_Sel_Format
 596 _get_selection_type(void *data, int size)
 597 {
 598    if (size == sizeof(Elm_Sel_Type))
 599      {
 600         Cnp_Selection *sel = selections + *((int *)data);
 601         if (sel->active &&
 602             (sel->format >= ELM_SEL_FORMAT_TARGETS) &&
 603             (sel->format <= ELM_SEL_FORMAT_HTML))
 604           return sel->format;
 605      }
 606    return ELM_SEL_FORMAT_NONE;
 607 }
 608
 609 static Eina_Bool
 610 targets_converter(char *target __UNUSED__, void *data, int size, void **data_ret, int *size_ret, Ecore_X_Atom *ttype, int *typesize)
 611 {
 612    int i,count;
 613    Ecore_X_Atom *aret;
 614    Cnp_Selection *sel;
 615    Elm_Sel_Format seltype;
 616
 617    if (!data_ret) return EINA_FALSE;
 618
 619    if (_get_selection_type(data, size) == ELM_SEL_FORMAT_NONE)
 620      {
 621         /* TODO : fallback into precise type */
 622         seltype = ELM_SEL_FORMAT_TEXT;
 623      }
 624    else
 625      {
 626         sel = selections + *((int *)data);
 627         seltype = sel->format;
 628      }
 629
 630    for (i = 0, count = 0; i < CNP_N_ATOMS ; i++)
 631      {
 632         if (seltype & atoms[i].formats) count++;
 633      }
 634
 635    aret = malloc(sizeof(Ecore_X_Atom) * count);
 636    for (i = 0, count = 0; i < CNP_N_ATOMS; i++)
 637      {
 638         if (seltype & atoms[i].formats) aret[count ++] = atoms[i].atom;
 639      }
 640
 641    *data_ret = aret;
 642    if (typesize) *typesize = 32 /* urk */;
 643    if (ttype) *ttype = ECORE_X_ATOM_ATOM;
 644    if (size_ret) *size_ret = count;
 645
 646    return EINA_TRUE;
 647 }
 648
 649 static Eina_Bool
 650 image_converter(char *target __UNUSED__, void *data __UNUSED__, int size __UNUSED__, void **data_ret __UNUSED__, int *size_ret __UNUSED__, Ecore_X_Atom *ttype __UNUSED__, int *typesize __UNUSED__)
 651 {
 652    cnp_debug("Image converter called\n");
 653    return EINA_TRUE;
 654 }
 655
 656 static Eina_Bool
 657 vcard_send(char *target __UNUSED__, void *data __UNUSED__, int size __UNUSED__, void **data_ret, int *size_ret, Ecore_X_Atom *ttype __UNUSED__, int *typesize __UNUSED__)
 658 {
 659    Cnp_Selection *sel;
 660
 661    cnp_debug("Vcard send called\n");
 662
 663    sel = selections + *((int *)data);
 664
 665    if (data_ret) *data_ret = strdup(sel->selbuf);
 666    if (size_ret) *size_ret = strlen(sel->selbuf);
 667
 668    return EINA_TRUE;
 669 }
 670
 671 static Eina_Bool
 672 is_uri_type_data(Cnp_Selection *sel __UNUSED__, Ecore_X_Event_Selection_Notify *notify)
 673 {
 674    Ecore_X_Selection_Data *data;
 675    char *p;
 676
 677    data = notify->data;
 678    cnp_debug("data->format is %d %p %p\n", data->format, notify, data);
 679    if (data->content == ECORE_X_SELECTION_CONTENT_FILES) return EINA_TRUE;
 680    p = (char *)data->data;
 681    if (!p) return EINA_TRUE;
 682
 683    cnp_debug("Got %s\n", p);
 684    if (strncmp(p, "file://", 7))
 685      {
 686         if (*p != '/') return EINA_FALSE;
 687      }
 688
 689    return EINA_TRUE;
 690 }
 691
 692 /*
 693  * Callback to handle a targets response on a selection request:
 694  * So pick the format we'd like; and then request it.
 695  */
 696 static int
 697 notify_handler_targets(Cnp_Selection *sel, Ecore_X_Event_Selection_Notify *notify)
 698 {
 699    Ecore_X_Selection_Data_Targets *targets;
 700    Ecore_X_Atom *atomlist;
 701    Evas_Object *top;
 702    int i, j;
 703
 704    targets = notify->data;
 705    atomlist = (Ecore_X_Atom *)(targets->data.data);
 706
 707    for (j = (CNP_ATOM_LISTING_ATOMS+1); j < CNP_N_ATOMS; j++)
 708      {
 709         cnp_debug("\t%s %d\n", atoms[j].name, atoms[j].atom);
 710         if (!(atoms[j].formats & sel->requestformat)) continue;
 711         for (i = 0; i < targets->data.length; i++)
 712           {
 713              if ((atoms[j].atom == atomlist[i]) && (atoms[j].notify))
 714                {
 715                   if ((j == CNP_ATOM_text_uri) ||
 716                       (j == CNP_ATOM_text_urilist))
 717                     {
 718                       if (!is_uri_type_data(sel, notify)) continue;
 719                     }
 720                   cnp_debug("Atom %s matches\n",atoms[j].name);
 721                   goto done;
 722                }
 723           }
 724      }
 725
 726    cnp_debug("Couldn't find anything that matches\n");
 727    return ECORE_CALLBACK_PASS_ON;
 728
 729 done:
 730    top = elm_widget_top_get(sel->requestwidget);
 731    if (!top) top = sel->requestwidget;
 732    cnp_debug("Sending request for %s\n", atoms[j].name);
 733    sel->request(elm_win_xwindow_get(top), atoms[j].name);
 734
 735    return ECORE_CALLBACK_PASS_ON;
 736 }
 737
 738 static int
 739 response_handler_targets(Cnp_Selection *sel, Ecore_X_Event_Selection_Notify *notify)
 740 {
 741    Ecore_X_Selection_Data_Targets *targets;
 742    Ecore_X_Atom *atomlist;
 743    Evas_Object *top;
 744    int i,j;
 745
 746    targets = notify->data;
 747    atomlist = (Ecore_X_Atom *)(targets->data.data);
 748
 749    for (j = (CNP_ATOM_LISTING_ATOMS+1); j < CNP_N_ATOMS; j++)
 750      {
 751         if (!(atoms[j].formats & sel->requestformat)) continue;
 752         for (i = 0 ; i < targets->data.length ; i ++)
 753           {
 754              if ((atoms[j].atom == atomlist[i]) && (atoms[j].response))
 755                {
 756                   /* Found a match: Use it */
 757                   goto found;
 758                }
 759           }
 760      }
 761    cnp_debug("No matching type found\n");
 762    return 0;
 763
 764 found:
 765    top = elm_widget_top_get(sel->requestwidget);
 766    if (!top) return 0;
 767
 768    sel->request(elm_win_xwindow_get(top), atoms[j].name);
 769    return 0;
 770 }
 771
 772
 773 static int
 774 notify_handler_text(Cnp_Selection *sel, Ecore_X_Event_Selection_Notify *notify)
 775 {
 776    Ecore_X_Selection_Data *data;
 777    char *str;
 778    char *mkupstr;
 779
 780    data = notify->data;
 781    str = malloc(sizeof(char) * (data->length + 1));
 782    strncpy(str, (char *)data->data, data->length);
 783    str[data->length] = '\0';
 784
 785    if (sel->datacb)
 786      {
 787         Elm_Selection_Data ddata;
 788
 789         ddata.x = ddata.y = 0;
 790         ddata.format = ELM_SEL_FORMAT_TEXT;
 791         ddata.data = data->data;
 792         ddata.len = data->length;
 793         sel->datacb(sel->udata, sel->widget, &ddata);
 794         return 0;
 795      }
 796
 797    cnp_debug("Notify handler text %d %d %p\n", data->format,data->length, data->data);
 798    mkupstr = _elm_util_text_to_mkup((const char *) str);
 799    cnp_debug("String is %s (from %s)\n", str, data->data);
 800    _elm_entry_entry_paste(sel->requestwidget, mkupstr);
 801    free(str);
 802    free(mkupstr);
 803    return 0;
 804 }
 805
 806
 807 /**
 808  * So someone is pasting an image into my entry or widget...
 809  */
 810 static int
 811 notify_handler_uri(Cnp_Selection *sel, Ecore_X_Event_Selection_Notify *notify)
 812 {
 813    Ecore_X_Selection_Data *data;
 814    Ecore_X_Selection_Data_Files *files;
 815    char *p, *stripstr;
 816
 817    data = notify->data;
 818    cnp_debug("data->format is %d %p %p\n", data->format, notify, data);
 819    if (data->content == ECORE_X_SELECTION_CONTENT_FILES)
 820      {
 821         cnp_debug("got a files list\n");
 822         files = notify->data;
 823         if (files->num_files > 1)
 824           {
 825              /* Don't handle many items */
 826              cnp_debug("more then one file: Bailing\n");
 827              return 0;
 828           }
 829         stripstr = p = strdup(files->files[0]);
 830      }
 831    else
 832      {
 833         stripstr = p = malloc(data->length * sizeof(char) + 1);
 834         memcpy(stripstr, data->data, data->length);
 835         stripstr[data->length] = 0;
 836      }
 837
 838    if (!p)
 839      {
 840         cnp_debug("Couldn't find a file\n");
 841         return 0;
 842      }
 843    cnp_debug("Got %s\n",p);
 844    if (strncmp(p, "file://", 7))
 845      {
 846         /* Try and continue if it looks sane */
 847         if (*p != '/')
 848           {
 849              free(p);
 850              return 0;
 851           }
 852      }
 853    else
 854      {
 855         p += strlen("file://");
 856      }
 857
 858    if (savedtypes.imgfile) free((void*)savedtypes.imgfile);
 859    if (savedtypes.textreq)
 860      {
 861         savedtypes.textreq = 0;
 862         savedtypes.imgfile = strdup(p);
 863      }
 864    else
 865      {
 866         pasteimage_append(p, sel->requestwidget);
 867      }
 868    free(stripstr);
 869    return 0;
 870 }
 871
 872 /**
 873  * Just receieved an vcard, either through cut and paste, or dnd.
 874  */
 875 static int
 876 vcard_receive(Cnp_Selection *sel, Ecore_X_Event_Selection_Notify *notify)
 877 {
 878    Dropable *dropable;
 879    Eina_List *l;
 880    Ecore_X_Selection_Data *data;
 881
 882    data = notify->data;
 883    cnp_debug("vcard receive\n");
 884
 885    if (sel == (selections + ELM_SEL_TYPE_XDND))
 886      {
 887         Elm_Selection_Data ddata;
 888
 889         cnp_debug("drag & drop\n");
 890         /* FIXME: this needs to be generic: Used for all receives */
 891         EINA_LIST_FOREACH(drops, l, dropable)
 892           {
 893              if (dropable->obj == sel->requestwidget) break;
 894           }
 895         if (!dropable)
 896           {
 897              cnp_debug("Unable to find drop object");
 898              ecore_x_dnd_send_finished();
 899              return 0;
 900           }
 901         dropable = eina_list_data_get(l);
 902         ddata.x = savedtypes.x;
 903         ddata.y = savedtypes.y;
 904         ddata.format = ELM_SEL_FORMAT_VCARD;
 905         ddata.data = data->data;
 906         ddata.len = data->length;
 907         dropable->dropcb(dropable->cbdata, dropable->obj, &ddata);
 908         ecore_x_dnd_send_finished();
 909      }
 910    else if (sel->datacb)
 911      {
 912         Elm_Selection_Data ddata;
 913         ddata.x = ddata.y = 0;
 914         ddata.format = ELM_SEL_FORMAT_IMAGE;
 915         ddata.data = data->data;
 916         ddata.len = data->length;
 917         sel->datacb(sel->udata, sel->widget, &ddata);
 918      }
 919    else
 920      {
 921         cnp_debug("Paste request\n");
 922      }
 923
 924    return 0;
 925
 926 }
 927
 928
 929 static int
 930 notify_handler_image(Cnp_Selection *sel, Ecore_X_Event_Selection_Notify *notify)
 931 {
 932    Ecore_X_Selection_Data *data;
 933    Tmp_Info *tmp;
 934
 935    cnp_debug("got a image file!\n");
 936    data = notify->data;
 937
 938    cnp_debug("Size if %d\n", data->length);
 939
 940    if (sel->datacb)
 941      {
 942         Elm_Selection_Data ddata;
 943
 944         ddata.x = ddata.y = 0;
 945         ddata.format = ELM_SEL_FORMAT_IMAGE;
 946         ddata.data = data->data;
 947         ddata.len = data->length;
 948         sel->datacb(sel->udata, sel->widget, &ddata);
 949         return 0;
 950      }
 951
 952    /* generate tmp name */
 953    tmp = elm_cnp_tempfile_create(data->length);
 954    memcpy(tmp->map, data->data, data->length);
 955    munmap(tmp->map, data->length);
 956
 957    /* FIXME: Add to paste image data to clean up */
 958    pasteimage_append(tmp->filename, sel->requestwidget);
 959
 960    tmpinfo_free(tmp);
 961    return 0;
 962 }
 963
 964
 965 /**
 966  *    Warning: Generic text/html can';t handle it sanely.
 967  *    Firefox sends ucs2 (i think).
 968  *       chrome sends utf8... blerg
 969  */
 970 static int
 971 notify_handler_html(Cnp_Selection *sel, Ecore_X_Event_Selection_Notify *notify)
 972 {
 973    Ecore_X_Selection_Data *data;
 974
 975    cnp_debug("Got some HTML: Checking encoding is useful\n");
 976    data = notify->data;
 977
 978    if (sel->datacb)
 979      {
 980         Elm_Selection_Data ddata;
 981         ddata.x = ddata.y = 0;
 982         ddata.format = ELM_SEL_FORMAT_HTML;
 983         ddata.data = data->data;
 984         ddata.len = data->length;
 985         sel->datacb(sel->udata, sel->widget, &ddata);
 986         return 0;
 987      }
 988
 989    char *stripstr = malloc(sizeof(char) * (data->length + 1));
 990    strncpy(stripstr, (char *)data->data, data->length);
 991    stripstr[data->length] = '\0';
 992    cnp_debug("String is %s (%d bytes)\n", stripstr, data->length);
 993    _elm_entry_entry_paste(sel->requestwidget, stripstr);
 994    free(stripstr);
 995    return 0;
 996 }
 997
 998
 999 static Eina_Bool
1000 text_converter(char *target __UNUSED__, void *data, int size, void **data_ret, int *size_ret, Ecore_X_Atom *ttype __UNUSED__, int *typesize __UNUSED__)
1001 {
1002    Cnp_Selection *sel;
1003
1004    cnp_debug("text converter\n");
1005    if (_get_selection_type(data, size) == ELM_SEL_FORMAT_NONE)
1006      {
1007         if (data_ret)
1008           {
1009              *data_ret = malloc(size * sizeof(char) + 1);
1010              memcpy(*data_ret, data, size);
1011              ((char**)(data_ret))[0][size] = 0;
1012           }
1013         if (size_ret) *size_ret = size;
1014         return EINA_TRUE;
1015      }
1016    sel = selections + *((int *)data);
1017    if (!sel->active) return EINA_TRUE;
1018
1019    if ((sel->format & ELM_SEL_FORMAT_MARKUP) ||
1020        (sel->format & ELM_SEL_FORMAT_HTML))
1021      {
1022         *data_ret = _elm_util_mkup_to_text(sel->selbuf);
1023         if (size_ret) *size_ret = strlen(*data_ret);
1024      }
1025    else if (sel->format & ELM_SEL_FORMAT_TEXT)
1026      {
1027         *data_ret = strdup(sel->selbuf);
1028         *size_ret = strlen(sel->selbuf);
1029      }
1030    else if (sel->format & ELM_SEL_FORMAT_IMAGE)
1031      {
1032         cnp_debug("Image %s\n", evas_object_type_get(sel->widget));
1033         cnp_debug("Elm type: %s\n", elm_object_widget_type_get(sel->widget));
1034         evas_object_image_file_get(elm_photocam_internal_image_get(sel->widget),
1035                                    (const char **)data_ret, NULL);
1036         if (!*data_ret) *data_ret = strdup("No file");
1037         else *data_ret = strdup(*data_ret);
1038         *size_ret = strlen(*data_ret);
1039      }
1040    return EINA_TRUE;
1041 }
1042
1043 static Eina_Bool
1044 general_converter(char *target __UNUSED__, void *data, int size, void **data_ret, int *size_ret, Ecore_X_Atom *ttype __UNUSED__, int *typesize __UNUSED__)
1045 {
1046    if (_get_selection_type(data, size) == ELM_SEL_FORMAT_NONE)
1047      {
1048         if (data_ret)
1049           {
1050              *data_ret = malloc(size * sizeof(char) + 1);
1051              memcpy(*data_ret, data, size);
1052              ((char**)(data_ret))[0][size] = 0;
1053           }
1054         if (size_ret) *size_ret = size;
1055      }
1056    else
1057      {
1058         Cnp_Selection *sel = selections + *((int *)data);
1059         if (data_ret) *data_ret = strdup(sel->selbuf);
1060         if (size_ret) *size_ret = strlen(sel->selbuf);
1061      }
1062    return EINA_TRUE;
1063 }
1064
1065 static Eina_Bool
1066 pasteimage_append(char *file, Evas_Object *entry)
1067 {
1068    char *entrytag;
1069    int len;
1070    static const char *tagstring = "<item absize=240x180 href=file://%s></item>";
1071
1072    if ((!file) || (!entry)) return EINA_FALSE;
1073
1074    len = strlen(tagstring)+strlen(file);
1075
1076    entrytag = alloca(len + 1);
1077    snprintf(entrytag, len + 1, tagstring, file);
1078    _elm_entry_entry_paste(entry, entrytag);
1079
1080    return EINA_TRUE;
1081 }
1082
1083 static Eina_Bool
1084 _dnd_enter(void *data __UNUSED__, int etype __UNUSED__, void *ev)
1085 {
1086    Ecore_X_Event_Xdnd_Enter *enter = ev;
1087    int i;
1088
1089    /* Skip it */
1090    if ((!enter) || (!enter->num_types) || (!enter->types)) return EINA_TRUE;
1091
1092    cnp_debug("Types\n");
1093    savedtypes.ntypes = enter->num_types;
1094    if (savedtypes.types) free(savedtypes.types);
1095    savedtypes.types = malloc(sizeof(char *) * enter->num_types);
1096    if (!savedtypes.types) return EINA_FALSE;
1097
1098    for (i = 0; i < enter->num_types; i++)
1099      {
1100         savedtypes.types[i] = eina_stringshare_add(enter->types[i]);
1101         cnp_debug("Type is %s %p %p\n", enter->types[i],
1102                   savedtypes.types[i],text_uri);
1103         if (savedtypes.types[i] == text_uri)
1104           {
1105              /* Request it, so we know what it is */
1106              cnp_debug("Sending uri request\n");
1107              savedtypes.textreq = 1;
1108              if (savedtypes.imgfile) free((void*)savedtypes.imgfile);
1109              savedtypes.imgfile = NULL;
1110              ecore_x_selection_xdnd_request(enter->win, text_uri);
1111           }
1112      }
1113
1114    /* FIXME: Find an object and make it current */
1115    return EINA_TRUE;
1116 }
1117
1118 static Eina_Bool
1119 _dnd_drop(void *data __UNUSED__, int etype __UNUSED__, void *ev)
1120 {
1121    struct _Ecore_X_Event_Xdnd_Drop *drop;
1122    Dropable *dropable;
1123    Eina_List *l;
1124    Ecore_Evas *ee;
1125    Ecore_X_Window xwin;
1126    Elm_Selection_Data ddata;
1127    int x, y, w, h;
1128    int i, j;
1129
1130    drop = ev;
1131
1132    // check we still have something to drop
1133    if (!drops) return EINA_TRUE;
1134
1135    /* Find any widget in our window; then work out geometry rel to our window */
1136    for (l = drops; l; l = l->next)
1137      {
1138         dropable = l->data;
1139         xwin = (Ecore_X_Window)ecore_evas_window_get
1140            (ecore_evas_ecore_evas_get(evas_object_evas_get
1141                                       (dropable->obj)));
1142         if (xwin == drop->win) break;
1143      }
1144    /* didn't find a window */
1145    if (!l) return EINA_TRUE;
1146
1147    /* Calculate real (widget relative) position */
1148    // - window position
1149    // - widget position
1150    ee = ecore_evas_ecore_evas_get(evas_object_evas_get(dropable->obj));
1151    ecore_evas_geometry_get(ee, &x, &y, NULL, NULL);
1152    savedtypes.x = drop->position.x - x;
1153    savedtypes.y = drop->position.y - y;
1154
1155    cnp_debug("Drop position is %d,%d\n", savedtypes.x, savedtypes.y);
1156
1157    for (; l; l = l->next)
1158      {
1159         dropable = l->data;
1160         evas_object_geometry_get(dropable->obj, &x, &y, &w, &h);
1161         if ((savedtypes.x >= x) && (savedtypes.y >= y) &&
1162             (savedtypes.x < x + w) && (savedtypes.y < y + h))
1163           break; /* found! */
1164      }
1165
1166    if (!l) return EINA_TRUE; /* didn't find one */
1167
1168    evas_object_geometry_get(dropable->obj, &x, &y, NULL, NULL);
1169    savedtypes.x -= x;
1170    savedtypes.y -= y;
1171
1172    /* Find our type from the previous list */
1173    for (i = 0; i < CNP_N_ATOMS; i++)
1174      {
1175         for (j = 0; j < savedtypes.ntypes; j++)
1176           {
1177              if (!strcmp(savedtypes.types[j], atoms[i].name)) goto found;
1178           }
1179      }
1180
1181    cnp_debug("Didn't find a target\n");
1182    return EINA_TRUE;
1183
1184 found:
1185    cnp_debug("Found a target we'd like: %s\n", atoms[i].name);
1186    cnp_debug("0x%x\n",xwin);
1187
1188    if (i == CNP_ATOM_text_urilist)
1189      {
1190         cnp_debug("We found a URI... (%scached) %s\n",
1191                   savedtypes.imgfile ? "" : "not ",
1192                   savedtypes.imgfile);
1193         if (savedtypes.imgfile)
1194           {
1195              char *entrytag;
1196              static const char *tagstring = "<item absize=240x180 href="
1197                 "file://%s></item>";
1198              ddata.x = savedtypes.x;
1199              ddata.y = savedtypes.y;
1200
1201              /* If it's markup that also supports images */
1202              if ((dropable->types & ELM_SEL_FORMAT_MARKUP) &&
1203                  (dropable->types & ELM_SEL_FORMAT_IMAGE))
1204                {
1205                   int len;
1206                   ddata.format = ELM_SEL_FORMAT_MARKUP;
1207
1208                   len = strlen(tagstring) + strlen(savedtypes.imgfile);
1209                   entrytag = alloca(len + 1);
1210                   snprintf(entrytag, len + 1, tagstring, savedtypes.imgfile);
1211                   ddata.data = entrytag;
1212                   cnp_debug("Insert %s\n", (char *)ddata.data);
1213                   dropable->dropcb(dropable->cbdata, dropable->obj, &ddata);
1214                   ecore_x_dnd_send_finished();
1215                   if (savedtypes.imgfile) free((void*)savedtypes.imgfile);
1216                   savedtypes.imgfile = NULL;
1217
1218                   return EINA_TRUE;
1219                }
1220              else if (dropable->types & ELM_SEL_FORMAT_IMAGE)
1221                {
1222                   cnp_debug("Doing image insert (%s)\n", savedtypes.imgfile);
1223                   ddata.format = ELM_SEL_FORMAT_IMAGE;
1224                   ddata.data = (char *)savedtypes.imgfile;
1225                   dropable->dropcb(dropable->cbdata, dropable->obj, &ddata);
1226                   ecore_x_dnd_send_finished();
1227                   if (savedtypes.imgfile) free((void*)savedtypes.imgfile);
1228                   savedtypes.imgfile = NULL;
1229
1230                   return EINA_TRUE;
1231                }
1232              else
1233                {
1234                   cnp_debug("Item doesn't support images... passing\n");
1235                   return EINA_TRUE;
1236                }
1237           }
1238         else if (savedtypes.textreq)
1239           {
1240              /* Already asked: Pretend we asked now, and paste immediately when
1241               * it comes in */
1242              savedtypes.textreq = 0;
1243              ecore_x_dnd_send_finished();
1244              return EINA_TRUE;
1245           }
1246      }
1247
1248    cnp_debug("doing a request then\n");
1249    selections[ELM_SEL_TYPE_XDND].requestwidget = dropable->obj;
1250    selections[ELM_SEL_TYPE_XDND].requestformat = ELM_SEL_FORMAT_MARKUP;
1251    selections[ELM_SEL_TYPE_XDND].active = EINA_TRUE;
1252
1253    ecore_x_selection_xdnd_request(xwin, atoms[i].name);
1254
1255    return EINA_TRUE;
1256 }
1257 static Eina_Bool
1258 _dnd_position(void *data __UNUSED__, int etype __UNUSED__, void *ev)
1259 {
1260    struct _Ecore_X_Event_Xdnd_Position *pos;
1261    Ecore_X_Rectangle rect;
1262
1263    pos = ev;
1264
1265    /* Need to send a status back */
1266    /* FIXME: Should check I can drop here */
1267    /* FIXME: Should highlight widget */
1268    rect.x = pos->position.x - 5;
1269    rect.y = pos->position.y - 5;
1270    rect.width = 10;
1271    rect.height = 10;
1272    ecore_x_dnd_send_status(EINA_TRUE, EINA_FALSE, rect, pos->action);
1273
1274    return EINA_TRUE;
1275 }
1276
1277 /**
1278  * When dragging this is callback response from the destination.
1279  * The important thing we care about: Can we drop; thus update cursor
1280  * appropriately.
1281  */
1282 static Eina_Bool
1283 _dnd_status(void *data __UNUSED__, int etype __UNUSED__, void *ev)
1284 {
1285    struct _Ecore_X_Event_Xdnd_Status *status = ev;
1286
1287    if (!status) return EINA_TRUE;
1288
1289    /* Only thing we care about: will accept */
1290    if (status->will_accept)
1291      {
1292         cnp_debug("Will accept\n");
1293      }
1294    else
1295      { /* Won't accept */
1296         cnp_debug("Won't accept accept\n");
1297      }
1298    return EINA_TRUE;
1299 }
1300
1301 /**
1302  * Add a widget as drop target.
1303  */
1304 Eina_Bool
1305 elm_drop_target_add(Evas_Object *obj, Elm_Sel_Type format, Elm_Drop_Cb dropcb, void *cbdata)
1306 {
1307    Dropable *drop;
1308    Ecore_X_Window xwin;
1309    Eina_List *item;
1310    int first;
1311    Evas_Object *top;
1312
1313    if (!obj) return EINA_FALSE;
1314    top = elm_widget_top_get(obj);
1315    if (!top || !elm_win_xwindow_get(top)) return EINA_FALSE;
1316    if (!_elm_cnp_init_count) _elm_cnp_init();
1317
1318    /* Is this the first? */
1319    first = (!drops) ? 1 : 0;
1320
1321    EINA_LIST_FOREACH(drops, item, drop)
1322      {
1323         if (drop->obj == obj)
1324           {
1325              /* Update: Not a new one */
1326              drop->dropcb = dropcb;
1327              drop->cbdata = cbdata;
1328              drop->types = format;
1329              return EINA_TRUE;
1330           }
1331      }
1332
1333    /* Create new drop */
1334    drop = calloc(1, sizeof(Dropable));
1335    if (!drop) return EINA_FALSE;
1336    /* FIXME: Check for eina's deranged error method */
1337    drops = eina_list_append(drops, drop);
1338
1339    if (!drops/* || or other error */)
1340      {
1341         free(drop);
1342         return EINA_FALSE;
1343      }
1344    drop->dropcb = dropcb;
1345    drop->cbdata = cbdata;
1346    drop->types = format;
1347    drop->obj = obj;
1348
1349    evas_object_event_callback_add(obj, EVAS_CALLBACK_DEL,
1350                                   /* I love C and varargs */
1351                                   (Evas_Object_Event_Cb)elm_drop_target_del,
1352                                   obj);
1353    /* FIXME: Handle resizes */
1354
1355    /* If not the first: We're done */
1356    if (!first) return EINA_TRUE;
1357
1358    xwin = (Ecore_X_Window)ecore_evas_window_get
1359       (ecore_evas_ecore_evas_get(evas_object_evas_get(obj)));
1360
1361    ecore_x_dnd_aware_set(xwin, EINA_TRUE);
1362
1363    cnp_debug("Adding drop target calls\n");
1364    handler_enter = ecore_event_handler_add(ECORE_X_EVENT_XDND_ENTER,
1365                                            _dnd_enter, NULL);
1366    handler_pos = ecore_event_handler_add(ECORE_X_EVENT_XDND_POSITION,
1367                                          _dnd_position, NULL);
1368    handler_drop = ecore_event_handler_add(ECORE_X_EVENT_XDND_DROP,
1369                                           _dnd_drop, NULL);
1370
1371    return EINA_TRUE;
1372 }
1373
1374 Eina_Bool
1375 elm_drop_target_del(Evas_Object *obj)
1376 {
1377    Dropable *drop,*del;
1378    Eina_List *item;
1379    Ecore_X_Window xwin;
1380
1381    del = NULL;
1382    EINA_LIST_FOREACH(drops, item, drop)
1383      {
1384         if (drop->obj == obj)
1385           {
1386              drops = eina_list_remove_list(drops, item);
1387              del = drop;
1388              break;
1389           }
1390      }
1391    if (!del) return EINA_FALSE;
1392
1393    evas_object_event_callback_del(obj, EVAS_CALLBACK_FREE,
1394                                   (Evas_Object_Event_Cb)elm_drop_target_del);
1395    free(drop);
1396    /* If still drops there: All fine.. continue */
1397    if (drops) return EINA_TRUE;
1398
1399    cnp_debug("Disabling DND\n");
1400    xwin = (Ecore_X_Window)ecore_evas_window_get
1401       (ecore_evas_ecore_evas_get(evas_object_evas_get(obj)));
1402    ecore_x_dnd_aware_set(xwin, EINA_FALSE);
1403
1404    ecore_event_handler_del(handler_pos);
1405    ecore_event_handler_del(handler_drop);
1406    ecore_event_handler_del(handler_enter);
1407
1408    if (savedtypes.imgfile) free((void*)savedtypes.imgfile);
1409    savedtypes.imgfile = NULL;
1410
1411    return EINA_TRUE;
1412 }
1413
1414
1415 static void
1416 _drag_mouse_up(void *un __UNUSED__, Evas *e __UNUSED__, Evas_Object *obj, void *data)
1417 {
1418    Ecore_X_Window xwin = *((Ecore_X_Window *)data);
1419    evas_object_event_callback_del(obj, EVAS_CALLBACK_MOUSE_UP, _drag_mouse_up);
1420    ecore_x_dnd_drop();
1421    ecore_x_dnd_aware_set(xwin, EINA_FALSE);
1422    if (dragdonecb)
1423      {
1424         dragdonecb(dragdonedata, selections[ELM_SEL_TYPE_XDND].widget);
1425         dragdonecb = NULL;
1426      }
1427    if (dragwin)
1428      {
1429         evas_object_del(dragwin);
1430         dragwin = NULL;
1431      }
1432 }
1433
1434 static void
1435 _drag_move(void *data __UNUSED__, Ecore_X_Xdnd_Position *pos)
1436 {
1437    evas_object_move(dragwin,
1438                     pos->position.x - _dragx,
1439                     pos->position.y - _dragy);
1440 }
1441
1442
1443 Eina_Bool
1444 elm_drag_start(Evas_Object *obj, Elm_Sel_Format format, const char *data, void (*dragdone) (void *data, Evas_Object *), void *donecbdata)
1445 {
1446    Ecore_X_Window xwin;
1447    Cnp_Selection *sel;
1448    Elm_Sel_Type xdnd = ELM_SEL_TYPE_XDND;
1449    Ecore_Evas *ee;
1450    int x, y, x2, y2, x3, y3;
1451    Evas_Object *icon;
1452    int w, h;
1453
1454    if (!_elm_cnp_init_count) _elm_cnp_init();
1455
1456    xwin = elm_win_xwindow_get(obj);
1457
1458    cnp_debug("starting drag...\n");
1459
1460    if (dragwin)
1461      {
1462         cnp_debug("another obj is dragging...\n");
1463         return EINA_FALSE;
1464      }
1465
1466    ecore_x_dnd_type_set(xwin, "text/uri-list", EINA_TRUE);
1467    sel = selections + ELM_SEL_TYPE_XDND;
1468    sel->active = EINA_TRUE;
1469    sel->widget = obj;
1470    sel->format = format;
1471    sel->selbuf = data ? strdup(data) : NULL;
1472    dragdonecb = dragdone;
1473    dragdonedata = donecbdata;
1474
1475    ecore_x_dnd_aware_set(xwin, EINA_TRUE);
1476    ecore_x_dnd_callback_pos_update_set(_drag_move, NULL);
1477    ecore_x_dnd_begin(xwin, (unsigned char *)&xdnd, sizeof(Elm_Sel_Type));
1478    evas_object_event_callback_add(obj, EVAS_CALLBACK_MOUSE_UP,
1479                                   _drag_mouse_up, (void *)(long)xwin);
1480
1481    handler_status = ecore_event_handler_add(ECORE_X_EVENT_XDND_STATUS,
1482                                             _dnd_status, NULL);
1483
1484    dragwin = elm_win_add(NULL, "Elm Drag Object", ELM_WIN_UTILITY);
1485    elm_win_override_set(dragwin, EINA_TRUE);
1486
1487    /* FIXME: Images only */
1488    icon = elm_icon_add(dragwin);
1489    elm_icon_file_set(icon, data + 7, NULL); /* 7!? "file://" */
1490    elm_win_resize_object_add(dragwin, icon);
1491    evas_object_size_hint_weight_set(icon, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
1492    evas_object_size_hint_align_set(icon, EVAS_HINT_FILL, EVAS_HINT_FILL);
1493
1494    /* Position subwindow appropriately */
1495    ee = ecore_evas_ecore_evas_get(evas_object_evas_get(obj));
1496    ecore_evas_geometry_get(ee, &x, &y, NULL, NULL);
1497    evas_object_geometry_get(obj, &x2, &y2, &w, &h);
1498    x += x2;
1499    y += y2;
1500    evas_object_move(dragwin, x, y);
1501    evas_object_resize(icon, w, h);
1502    evas_object_resize(dragwin, w, h);
1503
1504    evas_object_show(icon);
1505    evas_object_show(dragwin);
1506
1507    evas_pointer_canvas_xy_get(evas_object_evas_get(obj), &x3, &y3);
1508    _dragx = x3 - x2;
1509    _dragy = y3 - y2;
1510
1511    return EINA_TRUE;
1512 }
1513
1514 static Tmp_Info *
1515 elm_cnp_tempfile_create(int size)
1516 {
1517 #ifdef HAVE_MMAN_H
1518    Tmp_Info *info;
1519    const char *tmppath;
1520    int len;
1521
1522    info = malloc(sizeof(Tmp_Info));
1523    if (!info) return NULL;
1524
1525    tmppath = getenv("TMP");
1526    if (!tmppath) tmppath = P_tmpdir;
1527    len = snprintf(NULL, 0, "%s/%sXXXXXX", tmppath, "elmcnpitem-");
1528    if (len < 0)
1529      {
1530         free(info);
1531         return NULL;
1532      }
1533    len++;
1534    info->filename = malloc(len);
1535    if (!info->filename)
1536      {
1537         free(info);
1538         return NULL;
1539      }
1540    snprintf(info->filename,len,"%s/%sXXXXXX", tmppath, "elmcnpitem-");
1541
1542    info->fd = mkstemp(info->filename);
1543
1544 # ifdef __linux__
1545      {
1546         char *tmp;
1547         /* And before someone says anything see POSIX 1003.1-2008 page 400 */
1548         long pid;
1549
1550         pid = (long)getpid();
1551         /* Use pid instead of /proc/self: That way if can be passed around */
1552         len = snprintf(NULL,0,"/proc/%li/fd/%i", pid, info->fd);
1553         len++;
1554         tmp = malloc(len);
1555         if (tmp)
1556           {
1557              snprintf(tmp,len, "/proc/%li/fd/%i", pid, info->fd);
1558              unlink(info->filename);
1559              free(info->filename);
1560              info->filename = tmp;
1561           }
1562      }
1563 # endif
1564
1565    cnp_debug("filename is %s\n", info->filename);
1566    if (size < 1)
1567      {
1568         /* Set map to NULL and return */
1569         info->map = NULL;
1570         info->len = 0;
1571         return info;
1572      }
1573
1574    /* Map it in */
1575    if (ftruncate(info->fd, size))
1576      {
1577         perror("ftruncate");
1578         info->map = NULL;
1579         info->len = 0;
1580         return info;
1581      }
1582
1583    eina_mmap_safety_enabled_set(EINA_TRUE);
1584
1585    info->map = mmap(NULL, size, PROT_READ|PROT_WRITE, MAP_SHARED, info->fd, 0);
1586    if (info->map == MAP_FAILED)
1587      {
1588         perror("mmap");
1589         info->map = NULL;
1590         info->len = 0;
1591      }
1592
1593    return info;
1594 #else
1595    (void) size;
1596    return NULL;
1597 #endif
1598 }
1599
1600
1601 static int
1602 tmpinfo_free(Tmp_Info *info)
1603 {
1604    if (!info) return 0;
1605    free(info->filename);
1606    free(info);
1607    return 0;
1608 }
1609
1610 #else
1611 /* Stubs for windows */
1612 Eina_Bool
1613 elm_drag_start(Evas_Object *o, Elm_Sel_Format f, const char *d, void (*donecb)(void *, Evas_Object *),void *cbdata)
1614 {
1615    return EINA_FALSE;
1616 }
1617
1618 Eina_Bool
1619 elm_drop_target_add(Evas_Object *obj, Elm_Sel_Type format, Elm_Drop_Cb dropcb, void *cbdata)
1620 {
1621    return EINA_FALSE;
1622 }
1623
1624 Eina_Bool
1625 elm_drop_target_del(Evas_Object *o)
1626 {
1627    return EINA_TRUE;
1628 }
1629 #endif
1630
1631 /* vim:set ts=8 sw=3 sts=3 expandtab cino=>5n-3f0^-2{2(0W1st0 :*/