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
 779    data = notify->data;
 780
 781    if (sel->datacb)
 782      {
 783         Elm_Selection_Data ddata;
 784
 785         ddata.x = ddata.y = 0;
 786         ddata.format = ELM_SEL_FORMAT_TEXT;
 787         ddata.data = data->data;
 788         ddata.len = data->length;
 789         sel->datacb(sel->udata, sel->widget, &ddata);
 790         return 0;
 791      }
 792
 793    cnp_debug("Notify handler text %d %d %p\n", data->format,data->length, data->data);
 794    str = _elm_util_text_to_mkup((const char *) data->data);
 795    cnp_debug("String is %s (from %s)\n", str, data->data);
 796    _elm_entry_entry_paste(sel->requestwidget, str);
 797    free(str);
 798    return 0;
 799 }
 800
 801
 802 /**
 803  * So someone is pasting an image into my entry or widget...
 804  */
 805 static int
 806 notify_handler_uri(Cnp_Selection *sel, Ecore_X_Event_Selection_Notify *notify)
 807 {
 808    Ecore_X_Selection_Data *data;
 809    Ecore_X_Selection_Data_Files *files;
 810    char *p, *stripstr;
 811
 812    data = notify->data;
 813    cnp_debug("data->format is %d %p %p\n", data->format, notify, data);
 814    if (data->content == ECORE_X_SELECTION_CONTENT_FILES)
 815      {
 816         cnp_debug("got a files list\n");
 817         files = notify->data;
 818         if (files->num_files > 1)
 819           {
 820              /* Don't handle many items */
 821              cnp_debug("more then one file: Bailing\n");
 822              return 0;
 823           }
 824         stripstr = p = strdup(files->files[0]);
 825      }
 826    else
 827      {
 828         stripstr = p = malloc(data->length * sizeof(char) + 1);
 829         memcpy(stripstr, data->data, data->length);
 830         stripstr[data->length] = 0;
 831      }
 832
 833    if (!p)
 834      {
 835         cnp_debug("Couldn't find a file\n");
 836         return 0;
 837      }
 838    cnp_debug("Got %s\n",p);
 839    if (strncmp(p, "file://", 7))
 840      {
 841         /* Try and continue if it looks sane */
 842         if (*p != '/')
 843           {
 844              free(p);
 845              return 0;
 846           }
 847      }
 848    else
 849      {
 850         p += strlen("file://");
 851      }
 852
 853    if (savedtypes.imgfile) free((void*)savedtypes.imgfile);
 854    if (savedtypes.textreq)
 855      {
 856         savedtypes.textreq = 0;
 857         savedtypes.imgfile = strdup(p);
 858      }
 859    else
 860      {
 861         pasteimage_append(p, sel->requestwidget);
 862      }
 863    free(stripstr);
 864    return 0;
 865 }
 866
 867 /**
 868  * Just receieved an vcard, either through cut and paste, or dnd.
 869  */
 870 static int
 871 vcard_receive(Cnp_Selection *sel, Ecore_X_Event_Selection_Notify *notify)
 872 {
 873    Dropable *dropable;
 874    Eina_List *l;
 875    Ecore_X_Selection_Data *data;
 876
 877    data = notify->data;
 878    cnp_debug("vcard receive\n");
 879
 880    if (sel == (selections + ELM_SEL_TYPE_XDND))
 881      {
 882         Elm_Selection_Data ddata;
 883
 884         cnp_debug("drag & drop\n");
 885         /* FIXME: this needs to be generic: Used for all receives */
 886         EINA_LIST_FOREACH(drops, l, dropable)
 887           {
 888              if (dropable->obj == sel->requestwidget) break;
 889           }
 890         if (!dropable)
 891           {
 892              cnp_debug("Unable to find drop object");
 893              ecore_x_dnd_send_finished();
 894              return 0;
 895           }
 896         dropable = eina_list_data_get(l);
 897         ddata.x = savedtypes.x;
 898         ddata.y = savedtypes.y;
 899         ddata.format = ELM_SEL_FORMAT_VCARD;
 900         ddata.data = data->data;
 901         ddata.len = data->length;
 902         dropable->dropcb(dropable->cbdata, dropable->obj, &ddata);
 903         ecore_x_dnd_send_finished();
 904      }
 905    else if (sel->datacb)
 906      {
 907         Elm_Selection_Data ddata;
 908         ddata.x = ddata.y = 0;
 909         ddata.format = ELM_SEL_FORMAT_IMAGE;
 910         ddata.data = data->data;
 911         ddata.len = data->length;
 912         sel->datacb(sel->udata, sel->widget, &ddata);
 913      }
 914    else
 915      {
 916         cnp_debug("Paste request\n");
 917      }
 918
 919    return 0;
 920
 921 }
 922
 923
 924 static int
 925 notify_handler_image(Cnp_Selection *sel, Ecore_X_Event_Selection_Notify *notify)
 926 {
 927    Ecore_X_Selection_Data *data;
 928    Tmp_Info *tmp;
 929
 930    cnp_debug("got a image file!\n");
 931    data = notify->data;
 932
 933    cnp_debug("Size if %d\n", data->length);
 934
 935    if (sel->datacb)
 936      {
 937         Elm_Selection_Data ddata;
 938
 939         ddata.x = ddata.y = 0;
 940         ddata.format = ELM_SEL_FORMAT_IMAGE;
 941         ddata.data = data->data;
 942         ddata.len = data->length;
 943         sel->datacb(sel->udata, sel->widget, &ddata);
 944         return 0;
 945      }
 946
 947    /* generate tmp name */
 948    tmp = elm_cnp_tempfile_create(data->length);
 949    memcpy(tmp->map, data->data, data->length);
 950    munmap(tmp->map, data->length);
 951
 952    /* FIXME: Add to paste image data to clean up */
 953    pasteimage_append(tmp->filename, sel->requestwidget);
 954
 955    tmpinfo_free(tmp);
 956    return 0;
 957 }
 958
 959
 960 /**
 961  *    Warning: Generic text/html can';t handle it sanely.
 962  *    Firefox sends ucs2 (i think).
 963  *       chrome sends utf8... blerg
 964  */
 965 static int
 966 notify_handler_html(Cnp_Selection *sel, Ecore_X_Event_Selection_Notify *notify)
 967 {
 968    Ecore_X_Selection_Data *data;
 969
 970    cnp_debug("Got some HTML: Checking encoding is useful\n");
 971    data = notify->data;
 972
 973    if (sel->datacb)
 974      {
 975         Elm_Selection_Data ddata;
 976         ddata.x = ddata.y = 0;
 977         ddata.format = ELM_SEL_FORMAT_HTML;
 978         ddata.data = data->data;
 979         ddata.len = data->length;
 980         sel->datacb(sel->udata, sel->widget, &ddata);
 981         return 0;
 982      }
 983
 984    char *stripstr = malloc(sizeof(char) * (data->length + 1));
 985    strncpy(stripstr, (char *)data->data, data->length);
 986    stripstr[data->length] = '\0';
 987    cnp_debug("String is %s (%d bytes)\n", stripstr, data->length);
 988    _elm_entry_entry_paste(sel->requestwidget, stripstr);
 989    free(stripstr);
 990    return 0;
 991 }
 992
 993
 994 static Eina_Bool
 995 text_converter(char *target __UNUSED__, void *data, int size, void **data_ret, int *size_ret, Ecore_X_Atom *ttype __UNUSED__, int *typesize __UNUSED__)
 996 {
 997    Cnp_Selection *sel;
 998
 999    cnp_debug("text converter\n");
1000    if (_get_selection_type(data, size) == ELM_SEL_FORMAT_NONE)
1001      {
1002         if (data_ret)
1003           {
1004              *data_ret = malloc(size * sizeof(char) + 1);
1005              memcpy(*data_ret, data, size);
1006              ((char**)(data_ret))[0][size] = 0;
1007           }
1008         if (size_ret) *size_ret = size;
1009         return EINA_TRUE;
1010      }
1011    sel = selections + *((int *)data);
1012    if (!sel->active) return EINA_TRUE;
1013
1014    if ((sel->format & ELM_SEL_FORMAT_MARKUP) ||
1015        (sel->format & ELM_SEL_FORMAT_HTML))
1016      {
1017         *data_ret = _elm_util_mkup_to_text(sel->selbuf);
1018         if (size_ret) *size_ret = strlen(*data_ret);
1019      }
1020    else if (sel->format & ELM_SEL_FORMAT_TEXT)
1021      {
1022         *data_ret = strdup(sel->selbuf);
1023         *size_ret = strlen(sel->selbuf);
1024      }
1025    else if (sel->format & ELM_SEL_FORMAT_IMAGE)
1026      {
1027         cnp_debug("Image %s\n", evas_object_type_get(sel->widget));
1028         cnp_debug("Elm type: %s\n", elm_object_widget_type_get(sel->widget));
1029         evas_object_image_file_get(elm_photocam_internal_image_get(sel->widget),
1030                                    (const char **)data_ret, NULL);
1031         if (!*data_ret) *data_ret = strdup("No file");
1032         else *data_ret = strdup(*data_ret);
1033         *size_ret = strlen(*data_ret);
1034      }
1035    return EINA_TRUE;
1036 }
1037
1038 static Eina_Bool
1039 general_converter(char *target __UNUSED__, void *data, int size, void **data_ret, int *size_ret, Ecore_X_Atom *ttype __UNUSED__, int *typesize __UNUSED__)
1040 {
1041    if (_get_selection_type(data, size) == ELM_SEL_FORMAT_NONE)
1042      {
1043         if (data_ret)
1044           {
1045              *data_ret = malloc(size * sizeof(char) + 1);
1046              memcpy(*data_ret, data, size);
1047              ((char**)(data_ret))[0][size] = 0;
1048           }
1049         if (size_ret) *size_ret = size;
1050      }
1051    else
1052      {
1053         Cnp_Selection *sel = selections + *((int *)data);
1054         if (data_ret) *data_ret = strdup(sel->selbuf);
1055         if (size_ret) *size_ret = strlen(sel->selbuf);
1056      }
1057    return EINA_TRUE;
1058 }
1059
1060 static Eina_Bool
1061 pasteimage_append(char *file, Evas_Object *entry)
1062 {
1063    char *entrytag;
1064    int len;
1065    static const char *tagstring = "<item absize=240x180 href=file://%s></item>";
1066
1067    if ((!file) || (!entry)) return EINA_FALSE;
1068
1069    len = strlen(tagstring)+strlen(file);
1070
1071    entrytag = alloca(len + 1);
1072    snprintf(entrytag, len + 1, tagstring, file);
1073    _elm_entry_entry_paste(entry, entrytag);
1074
1075    return EINA_TRUE;
1076 }
1077
1078 static Eina_Bool
1079 _dnd_enter(void *data __UNUSED__, int etype __UNUSED__, void *ev)
1080 {
1081    Ecore_X_Event_Xdnd_Enter *enter = ev;
1082    int i;
1083
1084    /* Skip it */
1085    if ((!enter) || (!enter->num_types) || (!enter->types)) return EINA_TRUE;
1086
1087    cnp_debug("Types\n");
1088    savedtypes.ntypes = enter->num_types;
1089    if (savedtypes.types) free(savedtypes.types);
1090    savedtypes.types = malloc(sizeof(char *) * enter->num_types);
1091    if (!savedtypes.types) return EINA_FALSE;
1092
1093    for (i = 0; i < enter->num_types; i++)
1094      {
1095         savedtypes.types[i] = eina_stringshare_add(enter->types[i]);
1096         cnp_debug("Type is %s %p %p\n", enter->types[i],
1097                   savedtypes.types[i],text_uri);
1098         if (savedtypes.types[i] == text_uri)
1099           {
1100              /* Request it, so we know what it is */
1101              cnp_debug("Sending uri request\n");
1102              savedtypes.textreq = 1;
1103              if (savedtypes.imgfile) free((void*)savedtypes.imgfile);
1104              savedtypes.imgfile = NULL;
1105              ecore_x_selection_xdnd_request(enter->win, text_uri);
1106           }
1107      }
1108
1109    /* FIXME: Find an object and make it current */
1110    return EINA_TRUE;
1111 }
1112
1113 static Eina_Bool
1114 _dnd_drop(void *data __UNUSED__, int etype __UNUSED__, void *ev)
1115 {
1116    struct _Ecore_X_Event_Xdnd_Drop *drop;
1117    Dropable *dropable;
1118    Eina_List *l;
1119    Ecore_Evas *ee;
1120    Ecore_X_Window xwin;
1121    Elm_Selection_Data ddata;
1122    int x, y, w, h;
1123    int i, j;
1124
1125    drop = ev;
1126
1127    // check we still have something to drop
1128    if (!drops) return EINA_TRUE;
1129
1130    /* Find any widget in our window; then work out geometry rel to our window */
1131    for (l = drops; l; l = l->next)
1132      {
1133         dropable = l->data;
1134         xwin = (Ecore_X_Window)ecore_evas_window_get
1135            (ecore_evas_ecore_evas_get(evas_object_evas_get
1136                                       (dropable->obj)));
1137         if (xwin == drop->win) break;
1138      }
1139    /* didn't find a window */
1140    if (!l) return EINA_TRUE;
1141
1142    /* Calculate real (widget relative) position */
1143    // - window position
1144    // - widget position
1145    ee = ecore_evas_ecore_evas_get(evas_object_evas_get(dropable->obj));
1146    ecore_evas_geometry_get(ee, &x, &y, NULL, NULL);
1147    savedtypes.x = drop->position.x - x;
1148    savedtypes.y = drop->position.y - y;
1149
1150    cnp_debug("Drop position is %d,%d\n", savedtypes.x, savedtypes.y);
1151
1152    for (; l; l = l->next)
1153      {
1154         dropable = l->data;
1155         evas_object_geometry_get(dropable->obj, &x, &y, &w, &h);
1156         if ((savedtypes.x >= x) && (savedtypes.y >= y) &&
1157             (savedtypes.x < x + w) && (savedtypes.y < y + h))
1158           break; /* found! */
1159      }
1160
1161    if (!l) return EINA_TRUE; /* didn't find one */
1162
1163    evas_object_geometry_get(dropable->obj, &x, &y, NULL, NULL);
1164    savedtypes.x -= x;
1165    savedtypes.y -= y;
1166
1167    /* Find our type from the previous list */
1168    for (i = 0; i < CNP_N_ATOMS; i++)
1169      {
1170         for (j = 0; j < savedtypes.ntypes; j++)
1171           {
1172              if (!strcmp(savedtypes.types[j], atoms[i].name)) goto found;
1173           }
1174      }
1175
1176    cnp_debug("Didn't find a target\n");
1177    return EINA_TRUE;
1178
1179 found:
1180    cnp_debug("Found a target we'd like: %s\n", atoms[i].name);
1181    cnp_debug("0x%x\n",xwin);
1182
1183    if (i == CNP_ATOM_text_urilist)
1184      {
1185         cnp_debug("We found a URI... (%scached) %s\n",
1186                   savedtypes.imgfile ? "" : "not ",
1187                   savedtypes.imgfile);
1188         if (savedtypes.imgfile)
1189           {
1190              char *entrytag;
1191              static const char *tagstring = "<item absize=240x180 href="
1192                 "file://%s></item>";
1193              ddata.x = savedtypes.x;
1194              ddata.y = savedtypes.y;
1195
1196              /* If it's markup that also supports images */
1197              if ((dropable->types & ELM_SEL_FORMAT_MARKUP) &&
1198                  (dropable->types & ELM_SEL_FORMAT_IMAGE))
1199                {
1200                   int len;
1201                   ddata.format = ELM_SEL_FORMAT_MARKUP;
1202
1203                   len = strlen(tagstring) + strlen(savedtypes.imgfile);
1204                   entrytag = alloca(len + 1);
1205                   snprintf(entrytag, len + 1, tagstring, savedtypes.imgfile);
1206                   ddata.data = entrytag;
1207                   cnp_debug("Insert %s\n", (char *)ddata.data);
1208                   dropable->dropcb(dropable->cbdata, dropable->obj, &ddata);
1209                   ecore_x_dnd_send_finished();
1210                   if (savedtypes.imgfile) free((void*)savedtypes.imgfile);
1211                   savedtypes.imgfile = NULL;
1212
1213                   return EINA_TRUE;
1214                }
1215              else if (dropable->types & ELM_SEL_FORMAT_IMAGE)
1216                {
1217                   cnp_debug("Doing image insert (%s)\n", savedtypes.imgfile);
1218                   ddata.format = ELM_SEL_FORMAT_IMAGE;
1219                   ddata.data = (char *)savedtypes.imgfile;
1220                   dropable->dropcb(dropable->cbdata, dropable->obj, &ddata);
1221                   ecore_x_dnd_send_finished();
1222                   if (savedtypes.imgfile) free((void*)savedtypes.imgfile);
1223                   savedtypes.imgfile = NULL;
1224
1225                   return EINA_TRUE;
1226                }
1227              else
1228                {
1229                   cnp_debug("Item doesn't support images... passing\n");
1230                   return EINA_TRUE;
1231                }
1232           }
1233         else if (savedtypes.textreq)
1234           {
1235              /* Already asked: Pretend we asked now, and paste immediately when
1236               * it comes in */
1237              savedtypes.textreq = 0;
1238              ecore_x_dnd_send_finished();
1239              return EINA_TRUE;
1240           }
1241      }
1242
1243    cnp_debug("doing a request then\n");
1244    selections[ELM_SEL_TYPE_XDND].requestwidget = dropable->obj;
1245    selections[ELM_SEL_TYPE_XDND].requestformat = ELM_SEL_FORMAT_MARKUP;
1246    selections[ELM_SEL_TYPE_XDND].active = EINA_TRUE;
1247
1248    ecore_x_selection_xdnd_request(xwin, atoms[i].name);
1249
1250    return EINA_TRUE;
1251 }
1252 static Eina_Bool
1253 _dnd_position(void *data __UNUSED__, int etype __UNUSED__, void *ev)
1254 {
1255    struct _Ecore_X_Event_Xdnd_Position *pos;
1256    Ecore_X_Rectangle rect;
1257
1258    pos = ev;
1259
1260    /* Need to send a status back */
1261    /* FIXME: Should check I can drop here */
1262    /* FIXME: Should highlight widget */
1263    rect.x = pos->position.x - 5;
1264    rect.y = pos->position.y - 5;
1265    rect.width = 10;
1266    rect.height = 10;
1267    ecore_x_dnd_send_status(EINA_TRUE, EINA_FALSE, rect, pos->action);
1268
1269    return EINA_TRUE;
1270 }
1271
1272 /**
1273  * When dragging this is callback response from the destination.
1274  * The important thing we care about: Can we drop; thus update cursor
1275  * appropriately.
1276  */
1277 static Eina_Bool
1278 _dnd_status(void *data __UNUSED__, int etype __UNUSED__, void *ev)
1279 {
1280    struct _Ecore_X_Event_Xdnd_Status *status = ev;
1281
1282    if (!status) return EINA_TRUE;
1283
1284    /* Only thing we care about: will accept */
1285    if (status->will_accept)
1286      {
1287         cnp_debug("Will accept\n");
1288      }
1289    else
1290      { /* Won't accept */
1291         cnp_debug("Won't accept accept\n");
1292      }
1293    return EINA_TRUE;
1294 }
1295
1296 /**
1297  * Add a widget as drop target.
1298  */
1299 Eina_Bool
1300 elm_drop_target_add(Evas_Object *obj, Elm_Sel_Type format, Elm_Drop_Cb dropcb, void *cbdata)
1301 {
1302    Dropable *drop;
1303    Ecore_X_Window xwin;
1304    Eina_List *item;
1305    int first;
1306    Evas_Object *top;
1307
1308    if (!obj) return EINA_FALSE;
1309    top = elm_widget_top_get(obj);
1310    if (!top || !elm_win_xwindow_get(top)) return EINA_FALSE;
1311    if (!_elm_cnp_init_count) _elm_cnp_init();
1312
1313    /* Is this the first? */
1314    first = (!drops) ? 1 : 0;
1315
1316    EINA_LIST_FOREACH(drops, item, drop)
1317      {
1318         if (drop->obj == obj)
1319           {
1320              /* Update: Not a new one */
1321              drop->dropcb = dropcb;
1322              drop->cbdata = cbdata;
1323              drop->types = format;
1324              return EINA_TRUE;
1325           }
1326      }
1327
1328    /* Create new drop */
1329    drop = calloc(1, sizeof(Dropable));
1330    if (!drop) return EINA_FALSE;
1331    /* FIXME: Check for eina's deranged error method */
1332    drops = eina_list_append(drops, drop);
1333
1334    if (!drops/* || or other error */)
1335      {
1336         free(drop);
1337         return EINA_FALSE;
1338      }
1339    drop->dropcb = dropcb;
1340    drop->cbdata = cbdata;
1341    drop->types = format;
1342    drop->obj = obj;
1343
1344    evas_object_event_callback_add(obj, EVAS_CALLBACK_DEL,
1345                                   /* I love C and varargs */
1346                                   (Evas_Object_Event_Cb)elm_drop_target_del,
1347                                   obj);
1348    /* FIXME: Handle resizes */
1349
1350    /* If not the first: We're done */
1351    if (!first) return EINA_TRUE;
1352
1353    xwin = (Ecore_X_Window)ecore_evas_window_get
1354       (ecore_evas_ecore_evas_get(evas_object_evas_get(obj)));
1355
1356    ecore_x_dnd_aware_set(xwin, EINA_TRUE);
1357
1358    cnp_debug("Adding drop target calls\n");
1359    handler_enter = ecore_event_handler_add(ECORE_X_EVENT_XDND_ENTER,
1360                                            _dnd_enter, NULL);
1361    handler_pos = ecore_event_handler_add(ECORE_X_EVENT_XDND_POSITION,
1362                                          _dnd_position, NULL);
1363    handler_drop = ecore_event_handler_add(ECORE_X_EVENT_XDND_DROP,
1364                                           _dnd_drop, NULL);
1365
1366    return EINA_TRUE;
1367 }
1368
1369 Eina_Bool
1370 elm_drop_target_del(Evas_Object *obj)
1371 {
1372    Dropable *drop,*del;
1373    Eina_List *item;
1374    Ecore_X_Window xwin;
1375
1376    del = NULL;
1377    EINA_LIST_FOREACH(drops, item, drop)
1378      {
1379         if (drop->obj == obj)
1380           {
1381              drops = eina_list_remove_list(drops, item);
1382              del = drop;
1383              break;
1384           }
1385      }
1386    if (!del) return EINA_FALSE;
1387
1388    evas_object_event_callback_del(obj, EVAS_CALLBACK_FREE,
1389                                   (Evas_Object_Event_Cb)elm_drop_target_del);
1390    free(drop);
1391    /* If still drops there: All fine.. continue */
1392    if (drops) return EINA_TRUE;
1393
1394    cnp_debug("Disabling DND\n");
1395    xwin = (Ecore_X_Window)ecore_evas_window_get
1396       (ecore_evas_ecore_evas_get(evas_object_evas_get(obj)));
1397    ecore_x_dnd_aware_set(xwin, EINA_FALSE);
1398
1399    ecore_event_handler_del(handler_pos);
1400    ecore_event_handler_del(handler_drop);
1401    ecore_event_handler_del(handler_enter);
1402
1403    if (savedtypes.imgfile) free((void*)savedtypes.imgfile);
1404    savedtypes.imgfile = NULL;
1405
1406    return EINA_TRUE;
1407 }
1408
1409
1410 static void
1411 _drag_mouse_up(void *un __UNUSED__, Evas *e __UNUSED__, Evas_Object *obj, void *data)
1412 {
1413    Ecore_X_Window xwin = *((Ecore_X_Window *)data);
1414    evas_object_event_callback_del(obj, EVAS_CALLBACK_MOUSE_UP, _drag_mouse_up);
1415    ecore_x_dnd_drop();
1416    ecore_x_dnd_aware_set(xwin, EINA_FALSE);
1417    if (dragdonecb)
1418      {
1419         dragdonecb(dragdonedata, selections[ELM_SEL_TYPE_XDND].widget);
1420         dragdonecb = NULL;
1421      }
1422    if (dragwin)
1423      {
1424         evas_object_del(dragwin);
1425         dragwin = NULL;
1426      }
1427 }
1428
1429 static void
1430 _drag_move(void *data __UNUSED__, Ecore_X_Xdnd_Position *pos)
1431 {
1432    evas_object_move(dragwin,
1433                     pos->position.x - _dragx,
1434                     pos->position.y - _dragy);
1435 }
1436
1437
1438 Eina_Bool
1439 elm_drag_start(Evas_Object *obj, Elm_Sel_Format format, const char *data, void (*dragdone) (void *data, Evas_Object *), void *donecbdata)
1440 {
1441    Ecore_X_Window xwin;
1442    Cnp_Selection *sel;
1443    Elm_Sel_Type xdnd = ELM_SEL_TYPE_XDND;
1444    Ecore_Evas *ee;
1445    int x, y, x2, y2, x3, y3;
1446    Evas_Object *icon;
1447    int w, h;
1448
1449    if (!_elm_cnp_init_count) _elm_cnp_init();
1450
1451    xwin = elm_win_xwindow_get(obj);
1452
1453    cnp_debug("starting drag...\n");
1454
1455    if (dragwin)
1456      {
1457         cnp_debug("another obj is dragging...\n");
1458         return EINA_FALSE;
1459      }
1460
1461    ecore_x_dnd_type_set(xwin, "text/uri-list", EINA_TRUE);
1462    sel = selections + ELM_SEL_TYPE_XDND;
1463    sel->active = EINA_TRUE;
1464    sel->widget = obj;
1465    sel->format = format;
1466    sel->selbuf = data ? strdup(data) : NULL;
1467    dragdonecb = dragdone;
1468    dragdonedata = donecbdata;
1469
1470    ecore_x_dnd_aware_set(xwin, EINA_TRUE);
1471    ecore_x_dnd_callback_pos_update_set(_drag_move, NULL);
1472    ecore_x_dnd_begin(xwin, (unsigned char *)&xdnd, sizeof(Elm_Sel_Type));
1473    evas_object_event_callback_add(obj, EVAS_CALLBACK_MOUSE_UP,
1474                                   _drag_mouse_up, (void *)(long)xwin);
1475
1476    handler_status = ecore_event_handler_add(ECORE_X_EVENT_XDND_STATUS,
1477                                             _dnd_status, NULL);
1478
1479    dragwin = elm_win_add(NULL, "Elm Drag Object", ELM_WIN_UTILITY);
1480    elm_win_override_set(dragwin, EINA_TRUE);
1481
1482    /* FIXME: Images only */
1483    icon = elm_icon_add(dragwin);
1484    elm_icon_file_set(icon, data + 7, NULL); /* 7!? "file://" */
1485    elm_win_resize_object_add(dragwin, icon);
1486    evas_object_size_hint_weight_set(icon, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
1487    evas_object_size_hint_align_set(icon, EVAS_HINT_FILL, EVAS_HINT_FILL);
1488
1489    /* Position subwindow appropriately */
1490    ee = ecore_evas_ecore_evas_get(evas_object_evas_get(obj));
1491    ecore_evas_geometry_get(ee, &x, &y, NULL, NULL);
1492    evas_object_geometry_get(obj, &x2, &y2, &w, &h);
1493    x += x2;
1494    y += y2;
1495    evas_object_move(dragwin, x, y);
1496    evas_object_resize(icon, w, h);
1497    evas_object_resize(dragwin, w, h);
1498
1499    evas_object_show(icon);
1500    evas_object_show(dragwin);
1501
1502    evas_pointer_canvas_xy_get(evas_object_evas_get(obj), &x3, &y3);
1503    _dragx = x3 - x2;
1504    _dragy = y3 - y2;
1505
1506    return EINA_TRUE;
1507 }
1508
1509 static Tmp_Info *
1510 elm_cnp_tempfile_create(int size)
1511 {
1512 #ifdef HAVE_MMAN_H
1513    Tmp_Info *info;
1514    const char *tmppath;
1515    int len;
1516
1517    info = malloc(sizeof(Tmp_Info));
1518    if (!info) return NULL;
1519
1520    tmppath = getenv("TMP");
1521    if (!tmppath) tmppath = P_tmpdir;
1522    len = snprintf(NULL, 0, "%s/%sXXXXXX", tmppath, "elmcnpitem-");
1523    if (len < 0)
1524      {
1525         free(info);
1526         return NULL;
1527      }
1528    len++;
1529    info->filename = malloc(len);
1530    if (!info->filename)
1531      {
1532         free(info);
1533         return NULL;
1534      }
1535    snprintf(info->filename,len,"%s/%sXXXXXX", tmppath, "elmcnpitem-");
1536
1537    info->fd = mkstemp(info->filename);
1538
1539 # ifdef __linux__
1540      {
1541         char *tmp;
1542         /* And before someone says anything see POSIX 1003.1-2008 page 400 */
1543         long pid;
1544
1545         pid = (long)getpid();
1546         /* Use pid instead of /proc/self: That way if can be passed around */
1547         len = snprintf(NULL,0,"/proc/%li/fd/%i", pid, info->fd);
1548         len++;
1549         tmp = malloc(len);
1550         if (tmp)
1551           {
1552              snprintf(tmp,len, "/proc/%li/fd/%i", pid, info->fd);
1553              unlink(info->filename);
1554              free(info->filename);
1555              info->filename = tmp;
1556           }
1557      }
1558 # endif
1559
1560    cnp_debug("filename is %s\n", info->filename);
1561    if (size < 1)
1562      {
1563         /* Set map to NULL and return */
1564         info->map = NULL;
1565         info->len = 0;
1566         return info;
1567      }
1568
1569    /* Map it in */
1570    if (ftruncate(info->fd, size))
1571      {
1572         perror("ftruncate");
1573         info->map = NULL;
1574         info->len = 0;
1575         return info;
1576      }
1577
1578    eina_mmap_safety_enabled_set(EINA_TRUE);
1579
1580    info->map = mmap(NULL, size, PROT_READ|PROT_WRITE, MAP_SHARED, info->fd, 0);
1581    if (info->map == MAP_FAILED)
1582      {
1583         perror("mmap");
1584         info->map = NULL;
1585         info->len = 0;
1586      }
1587
1588    return info;
1589 #else
1590    (void) size;
1591    return NULL;
1592 #endif
1593 }
1594
1595
1596 static int
1597 tmpinfo_free(Tmp_Info *info)
1598 {
1599    if (!info) return 0;
1600    free(info->filename);
1601    free(info);
1602    return 0;
1603 }
1604
1605 #else
1606 /* Stubs for windows */
1607 Eina_Bool
1608 elm_drag_start(Evas_Object *o, Elm_Sel_Format f, const char *d, void (*donecb)(void *, Evas_Object *),void *cbdata)
1609 {
1610    return EINA_FALSE;
1611 }
1612
1613 Eina_Bool
1614 elm_drop_target_add(Evas_Object *obj, Elm_Sel_Type format, Elm_Drop_Cb dropcb, void *cbdata)
1615 {
1616    return EINA_FALSE;
1617 }
1618
1619 Eina_Bool
1620 elm_drop_target_del(Evas_Object *o)
1621 {
1622    return EINA_TRUE;
1623 }
1624 #endif
1625
1626 /* vim:set ts=8 sw=3 sts=3 expandtab cino=>5n-3f0^-2{2(0W1st0 :*/