src/lib/elm_conform.c

   1 #include <Elementary.h>
   2 #include "elm_priv.h"
   3
   4 /**
   5  * @defgroup Conformant Conformant
   6  * @ingroup Elementary
   7  *
   8  * The aim is to provide a widget that can be used in elementary apps to
   9  * account for space taken up by the indicator & softkey windows when running
  10  * the illume2 module of E17.
  11  */
  12
  13 typedef struct _Widget_Data Widget_Data;
  14 struct _Widget_Data
  15 {
  16    Evas_Object *base;
  17    Evas_Object *shelf, *panel;
  18    Evas_Object *content;
  19 #ifdef HAVE_CONFORMANT_AUTOSCROLL
  20    Evas_Object *virtualkeypad;
  21    Evas_Object *focus_obj;
  22    Evas_Object *scroller;
  23    Evas_Coord frelx, frely;
  24    int vkeypad_height;
  25    Ecore_X_Virtual_Keyboard_State vkeypad_state;
  26 #endif
  27    Ecore_Event_Handler *prop_hdl;
  28    struct {
  29       Ecore_Animator *animator; // animaton timer
  30       double start; // time started
  31       Evas_Coord auto_x, auto_y; // desired delta
  32       Evas_Coord x, y; // current delta
  33    } delta;
  34 };
  35
  36 /* local function prototypes */
  37 static const char *widtype = NULL;
  38 static void _del_hook(Evas_Object *obj);
  39 static void _theme_hook(Evas_Object *obj);
  40 static void _sizing_eval(Evas_Object *obj);
  41 static Eina_Bool _prop_change(void *data, int type, void *event);
  42 #ifdef HAVE_CONFORMANT_AUTOSCROLL
  43 static const char SIG_IMPREGION_CHANGED[] = "impregion,changed";
  44 #endif
  45
  46 /* local functions */
  47 static void
  48 _del_hook(Evas_Object *obj)
  49 {
  50    Widget_Data *wd = elm_widget_data_get(obj);
  51    if (!wd) return;
  52    if (wd->prop_hdl) ecore_event_handler_del(wd->prop_hdl);
  53    free(wd);
  54 }
  55
  56 static void
  57 _theme_hook(Evas_Object *obj)
  58 {
  59    Widget_Data *wd = elm_widget_data_get(obj);
  60    if (!wd) return;
  61    _elm_theme_object_set(obj, wd->base, "conformant", "base", elm_widget_style_get(obj));
  62    if (wd->content)
  63      edje_object_part_swallow(wd->base, "elm.swallow.content", wd->content);
  64    edje_object_scale_set(wd->base, elm_widget_scale_get(obj) * _elm_config->scale);
  65    _sizing_eval(obj);
  66 }
  67
  68 static void
  69 _sizing_eval(Evas_Object *obj)
  70 {
  71    Widget_Data *wd = elm_widget_data_get(obj);
  72    Evas_Coord mw = -1, mh = -1;
  73    if (!wd) return;
  74    edje_object_size_min_calc(wd->base, &mw, &mh);
  75    evas_object_size_hint_min_set(obj, mw, mh);
  76    evas_object_size_hint_max_set(obj, -1, -1);
  77 }
  78
  79 static void
  80 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
  81 {
  82    Widget_Data *wd = elm_widget_data_get(data);
  83    if (!wd) return;
  84    _sizing_eval(data);
  85 }
  86
  87 static void
  88 _sub_del(void *data __UNUSED__, Evas_Object *obj, void *event_info)
  89 {
  90    Widget_Data *wd = elm_widget_data_get(obj);
  91    Evas_Object *sub = event_info;
  92    if (!wd) return;
  93    if (sub == wd->content)
  94      {
  95         evas_object_event_callback_del_full(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
  96                                             _changed_size_hints, obj);
  97         wd->content = NULL;
  98         _sizing_eval(obj);
  99      }
 100 }
 101
 102 #ifdef HAVE_CONFORMANT_AUTOSCROLL
 103 static Evas_Object *
 104 _focus_object_get(const Evas_Object *obj)
 105 {
 106    Evas_Object *parent = NULL, *foc = NULL;
 107    parent = elm_widget_top_get(obj);
 108    if (!parent) return NULL;
 109    foc = elm_widget_focused_object_get(parent);
 110    return foc;
 111 }
 112
 113 static void
 114 _imp_region_show(void *data, Evas_Object *obj)
 115 {
 116    Evas_Coord x = 0, y = 0, w = 0, h = 0;
 117    Evas_Object * immed_scroll = NULL;
 118    Widget_Data *wd = elm_widget_data_get(data);
 119    if (!wd) return;
 120    if (!wd->scroller) return;
 121    if (!wd->focus_obj) return;
 122    immed_scroll = elm_widget_imp_region_get(wd->focus_obj, &x, &y, &w, &h);
 123    if(x < 0) x = 0;
 124    if(y < 0) y = 0;
 125    x = x + wd->frelx;
 126    y = y + wd->frely;
 127    //if(wd->vkeypad_state == ECORE_X_VIRTUAL_KEYBOARD_STATE_ON)
 128    elm_scroller_region_show(wd->scroller, x, y, w, h);
 129 }
 130
 131 static void
 132 _imp_region_changed_cb(void *data, Evas_Object *obj, void *event_info)
 133 {
 134    _imp_region_show(data, obj);
 135 }
 136
 137 static void
 138 _scroller_resize_event_cb(void *data, Evas *e, Evas_Object *obj, void *event_info)
 139 {
 140    _imp_region_show(data, obj);
 141 }
 142
 143 static Eina_Bool
 144 _focus_object_region_calc(void *data, int *kh, Eina_Bool reg_scrol_resz_evnt)
 145 {
 146    Evas_Coord fx = 0, fy = 0, fw = 0, fh = 0;
 147    Evas_Coord sx = 0, sy = 0, sw = 0, sh = 0;
 148    Evas_Coord tsx = 0, tsy = 0, tsw = 0, tsh = 0;
 149
 150    Widget_Data *wd = elm_widget_data_get(data);
 151    if (!wd) return EINA_FALSE;
 152    if (!wd->scroller) return EINA_FALSE;
 153    if (!wd->focus_obj) return EINA_FALSE;
 154    evas_object_geometry_get(wd->focus_obj, &fx, &fy, &fw, &fh);
 155    evas_object_geometry_get(wd->scroller, &sx, &sy, &sw, &sh);
 156    elm_scroller_region_get(wd->scroller, &tsx, &tsy, &tsw, &tsh);
 157    if(sy > 0)
 158     {
 159       fy = fy - sy;
 160     }
 161    wd->frelx = tsx + fx;
 162    wd->frely = tsy + fy;
 163 }
 164
 165 static Eina_Bool
 166 _get_scroller(void *data, Evas_Object * foc_obj, Eina_Bool reg_scrol_resz_evnt)
 167 {
 168    Evas_Coord x = 0, y = 0, w = 0, h = 0;
 169    Evas_Object * parent = NULL;
 170    Evas_Object * immed_scroll=NULL;
 171    Evas_Object * root_scroller = NULL;
 172    Evas_Object *win=NULL;
 173    const char * type=NULL;
 174    Widget_Data *wd = elm_widget_data_get(data);
 175    if (!wd) return EINA_FALSE;
 176    win = elm_widget_top_get(foc_obj);
 177    if (!win) return EINA_FALSE;
 178    immed_scroll = elm_widget_imp_region_get(foc_obj, &x, &y, &w, &h);
 179    parent = elm_object_parent_widget_get( foc_obj );
 180    do
 181     {
 182       type=elm_widget_type_get(parent);
 183       if(!strcmp(type,"scroller"))
 184         {
 185           root_scroller = parent;
 186           break;
 187         }
 188       parent = elm_object_parent_widget_get( parent );
 189     }while(parent && (parent !=win));
 190    if(root_scroller)
 191      wd->scroller = root_scroller;
 192    else if(immed_scroll)
 193      wd->scroller = immed_scroll;
 194    else
 195     {
 196       wd->scroller = NULL;
 197       return EINA_FALSE;
 198     }
 199    return EINA_TRUE;
 200 }
 201
 202 static void
 203 _autoscroll_mode_enable(void *data)
 204 {
 205    Evas_Object * focused_object=NULL;
 206    Eina_Bool ret = EINA_FALSE;
 207
 208    Widget_Data *wd = elm_widget_data_get(data);
 209    if (!wd) return;
 210    focused_object=_focus_object_get(data);
 211    if(focused_object)
 212     {
 213       wd->focus_obj = focused_object;
 214       ret = _get_scroller(data, focused_object, EINA_TRUE);
 215     }
 216    if(ret == EINA_TRUE)
 217     {
 218       ret = _focus_object_region_calc(data, NULL, EINA_TRUE);
 219       evas_object_event_callback_add(wd->scroller, EVAS_CALLBACK_RESIZE,
 220                                      _scroller_resize_event_cb, data);
 221       evas_object_smart_callback_add(wd->focus_obj, SIG_IMPREGION_CHANGED,
 222                                       _imp_region_changed_cb, data);
 223    }
 224 }
 225
 226 static void
 227 _autoscroll_mode_disable(void *data)
 228 {
 229    Widget_Data *wd = elm_widget_data_get(data);
 230    if (!wd) return;
 231    evas_object_event_callback_del(wd->scroller, EVAS_CALLBACK_RESIZE, _scroller_resize_event_cb);
 232    evas_object_smart_callback_del(wd->focus_obj, SIG_IMPREGION_CHANGED, _imp_region_changed_cb);
 233    wd->scroller = NULL;
 234    wd->focus_obj = NULL;
 235 }
 236 #endif
 237
 238 /* unused now - but meant to be for making sure the focused widget is always
 239  * visible when the vkbd comes and goes by moving the conformant obj (and thus
 240  * its children) to  show the focused widget (and if focus changes follow)
 241
 242 static Evas_Object *
 243 _focus_object_get(const Evas_Object *obj)
 244 {
 245    Evas_Object *win, *foc;
 246
 247    win = elm_widget_top_get(obj);
 248    if (!win) return NULL;
 249    foc = elm_widget_top_get(win);
 250 }
 251
 252 static void
 253 _focus_object_region_get(const Evas_Object *obj, Evas_Coord *x, Evas_Coord *y, Evas_Coord *w, Evas_Coord *h)
 254 {
 255    evas_object_geometry_get(obj, x, y, w, h);
 256 }
 257
 258 static void
 259 _focus_change_del(void *data, Evas_Object *obj, void *event_info)
 260 {
 261    // called from toplevel when the focused window shanges
 262 }
 263
 264 static void
 265 _autoscroll_move(Evas_Object *obj)
 266 {
 267    // move conformant edje by delta to show focused widget
 268 }
 269
 270 static void
 271 _autoscroll_mode_enable(Evas_Object *obj)
 272 {
 273    // called when autoscroll mode should be on - content area smaller than
 274    // its min size
 275    // 1. get focused object
 276    // 2. if not in visible conformant area calculate delta needed to
 277    //    get it in
 278    // 3. store delta and call _autoscroll_move() which either asanimates
 279    //    or jumps right there
 280 }
 281
 282 static void
 283 _autoscroll_mode_disable(Evas_Object *obj)
 284 {
 285    // called when autoscroll mode should be off - set delta to 0 and
 286    // call _autoscroll_move()
 287 }
 288 */
 289
 290 static Eina_Bool
 291 _prop_change(void *data, int type __UNUSED__, void *event)
 292 {
 293 #ifdef HAVE_ELEMENTARY_X
 294 #ifdef HAVE_CONFORMANT_AUTOSCROLL
 295    int indicator_height=57;
 296    Ecore_X_Virtual_Keyboard_State virt_keypad_state = ECORE_X_VIRTUAL_KEYBOARD_STATE_UNKNOWN;
 297 #endif
 298    Ecore_X_Event_Window_Property *ev;
 299    Widget_Data *wd = elm_widget_data_get(data);
 300    if (!wd) return ECORE_CALLBACK_PASS_ON;
 301    ev = event;
 302    if (ev->atom == ECORE_X_ATOM_E_ILLUME_ZONE)
 303      {
 304         Ecore_X_Window zone;
 305         int sh = -1;
 306
 307         zone = ecore_x_e_illume_zone_get(ev->win);
 308         ecore_x_e_illume_indicator_geometry_get(zone, NULL, NULL, NULL, &sh);
 309 #ifdef HAVE_CONFORMANT_AUTOSCROLL
 310         if (sh < 0) sh = indicator_height;
 311 #else
 312         if (sh < 0) sh = 0;
 313 #endif
 314         evas_object_size_hint_min_set(wd->shelf, -1, sh);
 315         evas_object_size_hint_max_set(wd->shelf, -1, sh);
 316 #ifdef HAVE_CONFORMANT_AUTOSCROLL
 317         sh = -1;
 318         zone = ecore_x_e_illume_zone_get(ev->win);
 319         ecore_x_e_illume_keyboard_geometry_get(zone, NULL, NULL, NULL, &sh);
 320         if (sh < 0) sh = 0;
 321         evas_object_size_hint_min_set(wd->virtualkeypad, -1, sh);
 322         evas_object_size_hint_max_set(wd->virtualkeypad, -1, sh);
 323 #endif
 324         sh = -1;
 325         ecore_x_e_illume_softkey_geometry_get(zone, NULL, NULL, NULL, &sh);
 326         if (sh < 0) sh = 0;
 327         evas_object_size_hint_min_set(wd->panel, -1, sh);
 328         evas_object_size_hint_max_set(wd->panel, -1, sh);
 329      }
 330    else if (ev->atom == ECORE_X_ATOM_E_ILLUME_INDICATOR_GEOMETRY)
 331      {
 332         Ecore_X_Window zone;
 333         int sh = -1;
 334
 335         zone = ecore_x_e_illume_zone_get(ev->win);
 336         ecore_x_e_illume_indicator_geometry_get(zone, NULL, NULL, NULL, &sh);
 337         if (sh < 0) sh = 0;
 338         evas_object_size_hint_min_set(wd->shelf, -1, sh);
 339         evas_object_size_hint_max_set(wd->shelf, -1, sh);
 340      }
 341    else if (ev->atom == ECORE_X_ATOM_E_ILLUME_SOFTKEY_GEOMETRY)
 342      {
 343         Ecore_X_Window zone;
 344         int sh = -1;
 345
 346         zone = ecore_x_e_illume_zone_get(ev->win);
 347         ecore_x_e_illume_softkey_geometry_get(zone, NULL, NULL, NULL, &sh);
 348         if (sh < 0) sh = 0;
 349         evas_object_size_hint_min_set(wd->panel, -1, sh);
 350         evas_object_size_hint_max_set(wd->panel, -1, sh);
 351      }
 352 #ifdef HAVE_CONFORMANT_AUTOSCROLL
 353    else if (ev->atom == ECORE_X_ATOM_E_ILLUME_KEYBOARD_GEOMETRY)
 354      {
 355         Ecore_X_Window zone;
 356         int ky = -1, kh = -1;
 357
 358         printf("Keyboard Geometry Changed\n");
 359         zone = ecore_x_e_illume_zone_get(ev->win);
 360         ecore_x_e_illume_keyboard_geometry_get(zone, NULL, &ky, NULL, &kh);
 361         printf("\tGeom: %d\n", ky);
 362         if (kh < 0) kh = 0;
 363         if (kh == wd->vkeypad_height) return ECORE_CALLBACK_PASS_ON;
 364         wd->vkeypad_height = kh;
 365         evas_object_size_hint_min_set(wd->virtualkeypad, -1, kh);
 366         evas_object_size_hint_max_set(wd->virtualkeypad, -1, kh);
 367      }
 368    else if (ev->atom == ECORE_X_ATOM_E_VIRTUAL_KEYBOARD_STATE)
 369      {
 370         Ecore_X_Window zone;
 371         zone = ecore_x_e_illume_zone_get(ev->win);
 372         virt_keypad_state = ecore_x_e_virtual_keyboard_state_get(zone);
 373         if (virt_keypad_state == wd->vkeypad_state)   return ECORE_CALLBACK_PASS_ON;
 374         wd->vkeypad_state = virt_keypad_state;
 375         if(wd->vkeypad_state == ECORE_X_VIRTUAL_KEYBOARD_STATE_ON)
 376           {
 377              _autoscroll_mode_enable(data);
 378           }
 379         else if(wd->vkeypad_state == ECORE_X_VIRTUAL_KEYBOARD_STATE_OFF)
 380           {
 381              _autoscroll_mode_disable(data);
 382           }
 383      }
 384 #endif
 385 #endif
 386
 387    return ECORE_CALLBACK_PASS_ON;
 388 }
 389
 390 /**
 391  * Add a new Conformant object
 392  *
 393  * @param parent The parent object
 394  * @return The new conformant object or NULL if it cannot be created
 395  *
 396  * @ingroup Conformant
 397  */
 398 EAPI Evas_Object *
 399 elm_conformant_add(Evas_Object *parent)
 400 {
 401    Evas_Object *obj;
 402    Evas *evas;
 403    Widget_Data *wd;
 404
 405    wd = ELM_NEW(Widget_Data);
 406
 407    evas = evas_object_evas_get(parent);
 408
 409    obj = elm_widget_add(evas);
 410    ELM_SET_WIDTYPE(widtype, "conformant");
 411    elm_widget_type_set(obj, "conformant");
 412    elm_widget_sub_object_add(parent, obj);
 413    elm_widget_data_set(obj, wd);
 414    elm_widget_del_hook_set(obj, _del_hook);
 415    elm_widget_theme_hook_set(obj, _theme_hook);
 416
 417    wd->base = edje_object_add(evas);
 418    _elm_theme_object_set(obj, wd->base, "conformant", "base", "default");
 419    elm_widget_resize_object_set(obj, wd->base);
 420
 421 #ifdef HAVE_ELEMENTARY_X
 422    Ecore_X_Window zone, xwin;
 423    int sh = -1;
 424
 425    xwin = elm_win_xwindow_get(parent);
 426    zone = ecore_x_e_illume_zone_get(xwin);
 427
 428    ecore_x_e_illume_indicator_geometry_get(zone, NULL, NULL, NULL, &sh);
 429    if (sh < 0) sh = 0;
 430    wd->shelf = evas_object_rectangle_add(evas);
 431    evas_object_color_set(wd->shelf, 0, 0, 0, 0);
 432    evas_object_size_hint_min_set(wd->shelf, -1, sh);
 433    evas_object_size_hint_max_set(wd->shelf, -1, sh);
 434    edje_object_part_swallow(wd->base, "elm.swallow.shelf", wd->shelf);
 435
 436 #ifdef HAVE_CONFORMANT_AUTOSCROLL
 437    wd->scroller = NULL;
 438    wd->focus_obj = NULL;
 439    sh = -1;
 440    ecore_x_e_illume_keyboard_geometry_get(zone, NULL, NULL, NULL, &sh);
 441    if (sh < 0) sh = 0;
 442    wd->virtualkeypad= evas_object_rectangle_add(evas);
 443    evas_object_color_set(wd->virtualkeypad, 0, 0, 0, 0);
 444    evas_object_size_hint_min_set(wd->virtualkeypad, -1, sh);
 445    evas_object_size_hint_max_set(wd->virtualkeypad, -1, sh);
 446    edje_object_part_swallow(wd->base, "elm.swallow.virtualkeypad", wd->virtualkeypad);
 447    wd->vkeypad_state = ECORE_X_VIRTUAL_KEYBOARD_STATE_UNKNOWN;
 448 #endif
 449
 450    sh = -1;
 451    ecore_x_e_illume_softkey_geometry_get(zone, NULL, NULL, NULL, &sh);
 452    if (sh < 0) sh = 0;
 453    wd->panel = evas_object_rectangle_add(evas);
 454    evas_object_color_set(wd->panel, 0, 0, 0, 0);
 455    evas_object_size_hint_min_set(wd->panel, -1, sh);
 456    evas_object_size_hint_max_set(wd->panel, -1, sh);
 457    edje_object_part_swallow(wd->base, "elm.swallow.panel", wd->panel);
 458
 459    wd->prop_hdl = ecore_event_handler_add(ECORE_X_EVENT_WINDOW_PROPERTY,
 460                                           _prop_change, obj);
 461    // FIXME: get kbd region prop
 462 #endif
 463
 464    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 465
 466    _sizing_eval(obj);
 467    return obj;
 468 }
 469
 470 /**
 471  * Set the content of the conformant widget
 472  *
 473  * Once the content object is set, a previously set one will be deleted.
 474  * If you want to keep that old content object, use the
 475  * elm_conformat_content_unset() function.
 476  *
 477  * @param obj The conformant object
 478  * @return The content that was being used
 479  *
 480  * @ingroup Conformant
 481  */
 482 EAPI void
 483 elm_conformant_content_set(Evas_Object *obj, Evas_Object *content)
 484 {
 485    ELM_CHECK_WIDTYPE(obj, widtype);
 486    Widget_Data *wd = elm_widget_data_get(obj);
 487    if (!wd) return;
 488    if (wd->content == content) return;
 489    if (wd->content) evas_object_del(wd->content);
 490    wd->content = content;
 491    if (content)
 492      {
 493         elm_widget_sub_object_add(obj, content);
 494         evas_object_event_callback_add(content, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 495                                        _changed_size_hints, obj);
 496         edje_object_part_swallow(wd->base, "elm.swallow.content", content);
 497      }
 498    _sizing_eval(obj);
 499 }
 500
 501 /**
 502  * Unset the content of the conformant widget
 503  *
 504  * Unparent and return the content object which was set for this widget;
 505  *
 506  * @param obj The conformant object
 507  * @return The content that was being used
 508  *
 509  * @ingroup Conformant
 510  */
 511 EAPI Evas_Object *
 512 elm_conformant_content_unset(Evas_Object *obj)
 513 {
 514    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 515    Widget_Data *wd = elm_widget_data_get(obj);
 516    Evas_Object *content;
 517    if (!wd) return NULL;
 518    if (!wd->content) return NULL;
 519    content = wd->content;
 520    elm_widget_sub_object_del(obj, wd->content);
 521    edje_object_part_unswallow(wd->base, wd->content);
 522    wd->content = NULL;
 523    return content;
 524 }