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 _swallow_conformant_parts(Evas_Object *obj);
  41 static void _sizing_eval(Evas_Object *obj);
  42 static Eina_Bool _prop_change(void *data, int type, void *event);
  43 #ifdef HAVE_CONFORMANT_AUTOSCROLL
  44 static const char SIG_IMPREGION_CHANGED[] = "impregion,changed";
  45 #endif
  46
  47 /* local functions */
  48 static void
  49 _del_hook(Evas_Object *obj)
  50 {
  51    Widget_Data *wd = elm_widget_data_get(obj);
  52    if (!wd) return;
  53    if (wd->prop_hdl) ecore_event_handler_del(wd->prop_hdl);
  54    free(wd);
  55 }
  56
  57 static void
  58 _theme_hook(Evas_Object *obj)
  59 {
  60    Widget_Data *wd = elm_widget_data_get(obj);
  61    if (!wd) return;
  62    _elm_theme_object_set(obj, wd->base, "conformant", "base", elm_widget_style_get(obj));
  63    _swallow_conformant_parts(obj);
  64
  65    if (wd->content)
  66      edje_object_part_swallow(wd->base, "elm.swallow.content", wd->content);
  67    edje_object_scale_set(wd->base, elm_widget_scale_get(obj) * _elm_config->scale);
  68    _sizing_eval(obj);
  69 }
  70
  71 static void
  72 _sizing_eval(Evas_Object *obj)
  73 {
  74    Widget_Data *wd = elm_widget_data_get(obj);
  75    Evas_Coord mw = -1, mh = -1;
  76    if (!wd) return;
  77    edje_object_size_min_calc(wd->base, &mw, &mh);
  78    evas_object_size_hint_min_set(obj, mw, mh);
  79    evas_object_size_hint_max_set(obj, -1, -1);
  80 }
  81
  82 static void
  83 _swallow_conformant_parts(Evas_Object *obj)
  84 {
  85 #ifdef HAVE_ELEMENTARY_X
  86    Widget_Data *wd = elm_widget_data_get(obj);
  87
  88    Ecore_X_Window zone, xwin;
  89    int sh = -1;
  90
  91    xwin = elm_win_xwindow_get(obj);
  92    zone = ecore_x_e_illume_zone_get(xwin);
  93
  94    ecore_x_e_illume_indicator_geometry_get(zone, NULL, NULL, NULL, &sh);
  95    if (sh < 0) sh = 0;
  96    if(!wd->shelf)
  97       wd->shelf = evas_object_rectangle_add(evas_object_evas_get(obj));
  98    evas_object_color_set(wd->shelf, 0, 0, 0, 0);
  99    evas_object_size_hint_min_set(wd->shelf, -1, sh);
 100    evas_object_size_hint_max_set(wd->shelf, -1, sh);
 101    edje_object_part_swallow(wd->base, "elm.swallow.shelf", wd->shelf);
 102
 103 #ifdef HAVE_CONFORMANT_AUTOSCROLL
 104    wd->scroller = NULL;
 105    wd->focus_obj = NULL;
 106    sh = -1;
 107    ecore_x_e_illume_keyboard_geometry_get(zone, NULL, NULL, NULL, &sh);
 108    if (sh < 0) sh = 0;
 109    wd->vkeypad_height = sh;
 110    if(!wd->virtualkeypad)
 111       wd->virtualkeypad= evas_object_rectangle_add(evas_object_evas_get(obj));
 112    evas_object_color_set(wd->virtualkeypad, 0, 0, 0, 0);
 113    evas_object_size_hint_min_set(wd->virtualkeypad, -1, sh);
 114    evas_object_size_hint_max_set(wd->virtualkeypad, -1, sh);
 115    edje_object_part_swallow(wd->base, "elm.swallow.virtualkeypad", wd->virtualkeypad);
 116 #endif
 117
 118    sh = -1;
 119    ecore_x_e_illume_softkey_geometry_get(zone, NULL, NULL, NULL, &sh);
 120    if (sh < 0) sh = 0;
 121    if(!wd->panel)
 122       wd->panel = evas_object_rectangle_add(evas_object_evas_get(obj));
 123    evas_object_color_set(wd->panel, 0, 0, 0, 0);
 124    evas_object_size_hint_min_set(wd->panel, -1, sh);
 125    evas_object_size_hint_max_set(wd->panel, -1, sh);
 126    edje_object_part_swallow(wd->base, "elm.swallow.panel", wd->panel);
 127 #endif
 128 }
 129
 130 static void
 131 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 132 {
 133    Widget_Data *wd = elm_widget_data_get(data);
 134    if (!wd) return;
 135    _sizing_eval(data);
 136 }
 137
 138 static void
 139 _sub_del(void *data __UNUSED__, Evas_Object *obj, void *event_info)
 140 {
 141    Widget_Data *wd = elm_widget_data_get(obj);
 142    Evas_Object *sub = event_info;
 143    if (!wd) return;
 144    if (sub == wd->content)
 145      {
 146         evas_object_event_callback_del_full(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 147                                             _changed_size_hints, obj);
 148         wd->content = NULL;
 149         _sizing_eval(obj);
 150      }
 151 }
 152
 153 #ifdef HAVE_CONFORMANT_AUTOSCROLL
 154 static Evas_Object *
 155 _focus_object_get(const Evas_Object *obj)
 156 {
 157    Evas_Object *parent = NULL, *foc = NULL;
 158    parent = elm_widget_top_get(obj);
 159    if (!parent) return NULL;
 160    foc = elm_widget_focused_object_get(parent);
 161    return foc;
 162 }
 163
 164 static void
 165 _imp_region_show(void *data, Evas_Object *obj)
 166 {
 167    Evas_Coord x = 0, y = 0, w = 0, h = 0;
 168    Evas_Object * immed_scroll = NULL;
 169    Widget_Data *wd = elm_widget_data_get(data);
 170    if (!wd) return;
 171    if (!wd->scroller) return;
 172    if (!wd->focus_obj) return;
 173    immed_scroll = elm_widget_imp_region_get(wd->focus_obj, &x, &y, &w, &h);
 174    if(x < 0) x = 0;
 175    if(y < 0) y = 0;
 176    x = x + wd->frelx;
 177    y = y + wd->frely;
 178    //if(wd->vkeypad_state == ECORE_X_VIRTUAL_KEYBOARD_STATE_ON)
 179    elm_scroller_region_bring_in(wd->scroller, x, y, w, h);
 180 }
 181
 182 static void
 183 _imp_region_changed_cb(void *data, Evas_Object *obj, void *event_info)
 184 {
 185    _imp_region_show(data, obj);
 186 }
 187
 188 static void
 189 _scroller_resize_event_cb(void *data, Evas *e, Evas_Object *obj, void *event_info)
 190 {
 191    _imp_region_show(data, obj);
 192 }
 193
 194 static Eina_Bool
 195 _focus_object_region_calc(void *data, int *kh, Eina_Bool reg_scrol_resz_evnt)
 196 {
 197    Evas_Coord fx = 0, fy = 0, fw = 0, fh = 0;
 198    Evas_Coord sx = 0, sy = 0, sw = 0, sh = 0;
 199    Evas_Coord tsx = 0, tsy = 0, tsw = 0, tsh = 0;
 200
 201    Widget_Data *wd = elm_widget_data_get(data);
 202    if (!wd) return EINA_FALSE;
 203    if (!wd->scroller) return EINA_FALSE;
 204    if (!wd->focus_obj) return EINA_FALSE;
 205    evas_object_geometry_get(wd->focus_obj, &fx, &fy, &fw, &fh);
 206    evas_object_geometry_get(wd->scroller, &sx, &sy, &sw, &sh);
 207    elm_scroller_region_get(wd->scroller, &tsx, &tsy, &tsw, &tsh);
 208    if(sy > 0)
 209     {
 210       fy = fy - sy;
 211     }
 212    wd->frelx = tsx + fx;
 213    wd->frely = tsy + fy;
 214 }
 215
 216 static Eina_Bool
 217 _get_scroller(void *data, Evas_Object * foc_obj, Eina_Bool reg_scrol_resz_evnt)
 218 {
 219    Evas_Coord x = 0, y = 0, w = 0, h = 0;
 220    Evas_Object * parent = NULL;
 221    Evas_Object * immed_scroll=NULL;
 222    Evas_Object * root_scroller = NULL;
 223    Evas_Object *win=NULL;
 224    const char * type=NULL;
 225    Widget_Data *wd = elm_widget_data_get(data);
 226    if (!wd) return EINA_FALSE;
 227    win = elm_widget_top_get(foc_obj);
 228    if (!win) return EINA_FALSE;
 229    immed_scroll = elm_widget_imp_region_get(foc_obj, &x, &y, &w, &h);
 230    parent = elm_object_parent_widget_get( foc_obj );
 231    do
 232     {
 233       type=elm_widget_type_get(parent);
 234       if(!strcmp(type,"scroller"))
 235         {
 236           root_scroller = parent;
 237          // break;
 238         }
 239       parent = elm_object_parent_widget_get( parent );
 240     }while(parent && (parent !=win));
 241    if(root_scroller)
 242      wd->scroller = root_scroller;
 243    else if(immed_scroll)
 244      wd->scroller = immed_scroll;
 245    else
 246     {
 247       wd->scroller = NULL;
 248       return EINA_FALSE;
 249     }
 250    return EINA_TRUE;
 251 }
 252
 253 static void
 254 _autoscroll_mode_enable(void *data)
 255 {
 256    Evas_Object * focused_object=NULL;
 257    Eina_Bool ret = EINA_FALSE;
 258
 259    Widget_Data *wd = elm_widget_data_get(data);
 260    if (!wd) return;
 261    focused_object=_focus_object_get(data);
 262    if(focused_object)
 263     {
 264       wd->focus_obj = focused_object;
 265       ret = _get_scroller(data, focused_object, EINA_TRUE);
 266     }
 267    if(ret == EINA_TRUE)
 268     {
 269       ret = _focus_object_region_calc(data, NULL, EINA_TRUE);
 270       evas_object_event_callback_add(wd->scroller, EVAS_CALLBACK_RESIZE,
 271                                      _scroller_resize_event_cb, data);
 272       evas_object_smart_callback_add(wd->focus_obj, SIG_IMPREGION_CHANGED,
 273                                       _imp_region_changed_cb, data);
 274    }
 275 }
 276
 277 static void
 278 _autoscroll_mode_disable(void *data)
 279 {
 280    Widget_Data *wd = elm_widget_data_get(data);
 281    if (!wd) return;
 282    evas_object_event_callback_del(wd->scroller, EVAS_CALLBACK_RESIZE, _scroller_resize_event_cb);
 283    evas_object_smart_callback_del(wd->focus_obj, SIG_IMPREGION_CHANGED, _imp_region_changed_cb);
 284    wd->scroller = NULL;
 285    wd->focus_obj = NULL;
 286 }
 287 #endif
 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    _swallow_conformant_parts(obj);
 421
 422 #ifdef HAVE_ELEMENTARY_X
 423    wd->prop_hdl = ecore_event_handler_add(ECORE_X_EVENT_WINDOW_PROPERTY,
 424                                           _prop_change, obj);
 425 #ifdef HAVE_CONFORMANT_AUTOSCROLL
 426    wd->vkeypad_state = ECORE_X_VIRTUAL_KEYBOARD_STATE_OFF;
 427 #endif
 428 #endif
 429
 430    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 431
 432    _sizing_eval(obj);
 433    return obj;
 434 }
 435
 436 /**
 437  * Set the content of the conformant widget
 438  *
 439  * Once the content object is set, a previously set one will be deleted.
 440  * If you want to keep that old content object, use the
 441  * elm_conformat_content_unset() function.
 442  *
 443  * @param obj The conformant object
 444  * @return The content that was being used
 445  *
 446  * @ingroup Conformant
 447  */
 448 EAPI void
 449 elm_conformant_content_set(Evas_Object *obj, Evas_Object *content)
 450 {
 451    ELM_CHECK_WIDTYPE(obj, widtype);
 452    Widget_Data *wd = elm_widget_data_get(obj);
 453    if (!wd) return;
 454    if (wd->content == content) return;
 455    if (wd->content) evas_object_del(wd->content);
 456    wd->content = content;
 457    if (content)
 458      {
 459         elm_widget_sub_object_add(obj, content);
 460         evas_object_event_callback_add(content, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 461                                        _changed_size_hints, obj);
 462         edje_object_part_swallow(wd->base, "elm.swallow.content", content);
 463      }
 464    _sizing_eval(obj);
 465 }
 466
 467 /**
 468  * Unset the content of the conformant widget
 469  *
 470  * Unparent and return the content object which was set for this widget;
 471  *
 472  * @param obj The conformant object
 473  * @return The content that was being used
 474  *
 475  * @ingroup Conformant
 476  */
 477 EAPI Evas_Object *
 478 elm_conformant_content_unset(Evas_Object *obj)
 479 {
 480    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 481    Widget_Data *wd = elm_widget_data_get(obj);
 482    Evas_Object *content;
 483    if (!wd) return NULL;
 484    if (!wd->content) return NULL;
 485    content = wd->content;
 486    elm_widget_sub_object_del(obj, wd->content);
 487    edje_object_part_unswallow(wd->base, wd->content);
 488    wd->content = NULL;
 489    return content;
 490 }