src/lib/elm_conform.c

   1 #include <Elementary.h>
   2 #include "elm_priv.h"
   3
   4 /**
   5  * @defgroup Conformant Conformant
   6  *
   7  * The aim is to provide a widget that can be used in elementary apps to
   8  * account for space taken up by the indicator, virtual keypad & softkey windows when running
   9  * the illume2 module of E17.
  10  */
  11
  12 typedef struct _Widget_Data Widget_Data;
  13 struct _Widget_Data
  14 {
  15    Evas_Object *base;
  16    Evas_Object *shelf, *panel, *virtualkeypad;
  17    Evas_Object *content;
  18    Evas_Object *scroller;
  19    Ecore_Event_Handler *prop_hdl;
  20 #ifdef HAVE_ELEMENTARY_X
  21    Ecore_X_Virtual_Keyboard_State vkb_state;
  22 #endif
  23    struct {
  24         Ecore_Animator *animator; // animaton timer
  25         double start; // time started
  26         Evas_Coord auto_x, auto_y; // desired delta
  27         Evas_Coord x, y; // current delta
  28    } delta;
  29 };
  30
  31 /* Enum to identify conformant swallow parts */
  32 typedef enum _Conformant_Part_Type Conformant_Part_Type;
  33 enum _Conformant_Part_Type
  34 {
  35    ELM_CONFORM_INDICATOR_PART      = 1,
  36    ELM_CONFORM_VIRTUAL_KEYPAD_PART = 2,
  37    ELM_CONFORM_SOFTKEY_PART        = 4
  38 };
  39 #define SUB_TYPE_COUNT 2
  40 static char *sub_type[SUB_TYPE_COUNT] = { "scroller", "genlist" };
  41
  42 /* local function prototypes */
  43 static const char *widtype = NULL;
  44 static void _del_hook(Evas_Object *obj);
  45 static void _mirrored_set(Evas_Object *obj, Eina_Bool rtl);
  46 static void _theme_hook(Evas_Object *obj);
  47 static void
  48 _swallow_conformant_parts(Evas_Object *obj);
  49 static void
  50 _conformant_part_size_set(Evas_Object *obj, Evas_Object *sobj, Evas_Coord sx,
  51                           Evas_Coord sy, Evas_Coord sw, Evas_Coord sh);
  52 static void
  53 _conformant_part_sizing_eval(Evas_Object *obj, Conformant_Part_Type part_type);
  54 static void _sizing_eval(Evas_Object *obj);
  55 static Eina_Bool _prop_change(void *data, int type, void *event);
  56
  57 /* local functions */
  58 static void
  59 _del_hook(Evas_Object *obj)
  60 {
  61    Widget_Data *wd = elm_widget_data_get(obj);
  62    if (!wd) return;
  63    if (wd->prop_hdl) ecore_event_handler_del(wd->prop_hdl);
  64    free(wd);
  65 }
  66
  67 static void
  68 _mirrored_set(Evas_Object *obj, Eina_Bool rtl)
  69 {
  70    Widget_Data *wd = elm_widget_data_get(obj);
  71    if (!wd) return;
  72    edje_object_mirrored_set(wd->base, rtl);
  73 }
  74
  75 static void
  76 _theme_hook(Evas_Object *obj)
  77 {
  78    Widget_Data *wd = elm_widget_data_get(obj);
  79
  80    if (!wd) return;
  81    _elm_widget_mirrored_reload(obj);
  82    _mirrored_set(obj, elm_widget_mirrored_get(obj));
  83    _elm_theme_object_set(obj, wd->base, "conformant", "base", elm_widget_style_get(obj));
  84    _swallow_conformant_parts(obj);
  85
  86    if (wd->content)
  87      edje_object_part_swallow(wd->base, "elm.swallow.content", wd->content);
  88    edje_object_scale_set(wd->base, elm_widget_scale_get(obj) * _elm_config->scale);
  89    _sizing_eval(obj);
  90 }
  91
  92 static void
  93 _sizing_eval(Evas_Object *obj)
  94 {
  95    Widget_Data *wd = elm_widget_data_get(obj);
  96    Evas_Coord mw = -1, mh = -1;
  97    if (!wd) return;
  98    edje_object_size_min_calc(wd->base, &mw, &mh);
  99    evas_object_size_hint_min_set(obj, mw, mh);
 100    evas_object_size_hint_max_set(obj, -1, -1);
 101 }
 102
 103 static void
 104 _conformant_part_size_set(Evas_Object *obj, Evas_Object *sobj, Evas_Coord sx,
 105                           Evas_Coord sy, Evas_Coord sw, Evas_Coord sh)
 106 {
 107    Evas_Coord cx, cy, cw, ch;
 108    Evas_Coord part_height = 0, part_width = 0;
 109
 110    evas_object_geometry_get(obj, &cx, &cy, &cw, &ch);
 111
 112    /* Part overlapping with conformant */
 113    if ((cx < (sx+sw)) && ((cx+cw) > sx) && (cy < (sy+sh)) && ((cy+ch) > sy))
 114      {
 115         part_height = MIN((cy+ch), (sy+sh)) - MAX(cy, sy);
 116         part_width = MIN((cx+cw), (sx+sw)) - MAX(cx, sx);
 117      }
 118
 119    evas_object_size_hint_min_set(sobj, part_width, part_height);
 120    evas_object_size_hint_max_set(sobj, part_width, part_height);
 121 }
 122
 123 static void
 124 _conformant_part_sizing_eval(Evas_Object *obj, Conformant_Part_Type part_type)
 125 {
 126 #ifdef HAVE_ELEMENTARY_X
 127    Ecore_X_Window zone, xwin;
 128    int sx = -1, sy = -1, sw = -1, sh = -1;
 129    Widget_Data *wd = elm_widget_data_get(obj);
 130
 131    if (!wd) return;
 132
 133    xwin = elm_win_xwindow_get(obj);
 134    zone = ecore_x_e_illume_zone_get(xwin);
 135
 136    if (part_type & ELM_CONFORM_INDICATOR_PART)
 137      {
 138         ecore_x_e_illume_indicator_geometry_get(zone, &sx, &sy, &sw, &sh);
 139         _conformant_part_size_set(obj, wd->shelf, sx, sy, sw, sh);
 140      }
 141    if (part_type & ELM_CONFORM_VIRTUAL_KEYPAD_PART)
 142      {
 143         ecore_x_e_illume_keyboard_geometry_get(zone, &sx, &sy, &sw, &sh);
 144         _conformant_part_size_set(obj,wd->virtualkeypad, sx, sy, sw, sh);
 145      }
 146    if (part_type & ELM_CONFORM_SOFTKEY_PART)
 147      {
 148         ecore_x_e_illume_softkey_geometry_get(zone, &sx, &sy, &sw, &sh);
 149         _conformant_part_size_set(obj, wd->panel, sx, sy, sw, sh);
 150      }
 151 #endif
 152 }
 153
 154 static void
 155 _swallow_conformant_parts(Evas_Object *obj)
 156 {
 157    Widget_Data *wd = elm_widget_data_get(obj);
 158
 159    wd->scroller = NULL;
 160    if (!wd->shelf)
 161      {
 162         wd->shelf = evas_object_rectangle_add(evas_object_evas_get(obj));
 163         elm_widget_sub_object_add(obj, wd->shelf);
 164         evas_object_size_hint_min_set(wd->shelf, -1, 0);
 165         evas_object_size_hint_max_set(wd->shelf, -1, 0);
 166      }
 167    else
 168      _conformant_part_sizing_eval(obj, ELM_CONFORM_INDICATOR_PART);
 169
 170    evas_object_color_set(wd->shelf, 0, 0, 0, 0);
 171    edje_object_part_swallow(wd->base, "elm.swallow.shelf", wd->shelf);
 172
 173    if (!wd->virtualkeypad)
 174      {
 175         wd->virtualkeypad = evas_object_rectangle_add(evas_object_evas_get(obj));
 176         elm_widget_sub_object_add(obj, wd->virtualkeypad);
 177         evas_object_size_hint_min_set(wd->virtualkeypad, -1, 0);
 178         evas_object_size_hint_max_set(wd->virtualkeypad, -1, 0);
 179      }
 180    else
 181      _conformant_part_sizing_eval(obj, ELM_CONFORM_VIRTUAL_KEYPAD_PART);
 182
 183    evas_object_color_set(wd->virtualkeypad, 0, 0, 0, 0);
 184    edje_object_part_swallow(wd->base, "elm.swallow.virtualkeypad",
 185                             wd->virtualkeypad);
 186
 187    if (!wd->panel)
 188      {
 189         wd->panel = evas_object_rectangle_add(evas_object_evas_get(obj));
 190         elm_widget_sub_object_add(obj, wd->panel);
 191         evas_object_size_hint_min_set(wd->panel, -1, 0);
 192         evas_object_size_hint_max_set(wd->panel, -1, 0);
 193      }
 194    else
 195      _conformant_part_sizing_eval(obj, ELM_CONFORM_SOFTKEY_PART);
 196
 197    evas_object_color_set(wd->panel, 0, 0, 0, 0);
 198    edje_object_part_swallow(wd->base, "elm.swallow.panel", wd->panel);
 199 }
 200
 201 static void
 202 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 203 {
 204    Widget_Data *wd = elm_widget_data_get(data);
 205    if (!wd) return;
 206    _sizing_eval(data);
 207 }
 208
 209 static void
 210 _sub_del(void *data __UNUSED__, Evas_Object *obj, void *event_info)
 211 {
 212    Widget_Data *wd = elm_widget_data_get(obj);
 213    Evas_Object *sub = event_info;
 214    if (!wd) return;
 215    if (sub == wd->content)
 216      {
 217         evas_object_event_callback_del_full(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 218                                             _changed_size_hints, obj);
 219         wd->content = NULL;
 220         _sizing_eval(obj);
 221      }
 222 }
 223
 224 /* unused now - but meant to be for making sure the focused widget is always
 225  * visible when the vkbd comes and goes by moving the conformant obj (and thus
 226  * its children) to  show the focused widget (and if focus changes follow)
 227
 228 static Evas_Object *
 229 _focus_object_get(const Evas_Object *obj)
 230 {
 231    Evas_Object *win, *foc;
 232
 233    win = elm_widget_top_get(obj);
 234    if (!win) return NULL;
 235    foc = elm_widget_top_get(win);
 236 }
 237
 238 static void
 239 _focus_object_region_get(const Evas_Object *obj, Evas_Coord *x, Evas_Coord *y, Evas_Coord *w, Evas_Coord *h)
 240 {
 241    evas_object_geometry_get(obj, x, y, w, h);
 242 }
 243
 244 static void
 245 _focus_change_del(void *data, Evas_Object *obj, void *event_info)
 246 {
 247    // called from toplevel when the focused window shanges
 248 }
 249
 250 static void
 251 _autoscroll_move(Evas_Object *obj)
 252 {
 253    // move conformant edje by delta to show focused widget
 254 }
 255
 256 static void
 257 _autoscroll_mode_enable(Evas_Object *obj)
 258 {
 259 // called when autoscroll mode should be on - content area smaller than
 260 // its min size
 261 // 1. get focused object
 262 // 2. if not in visible conformant area calculate delta needed to
 263 //    get it in
 264 // 3. store delta and call _autoscroll_move() which either asanimates
 265 //    or jumps right there
 266 }
 267
 268 static void
 269 _autoscroll_mode_disable(Evas_Object *obj)
 270 {
 271 // called when autoscroll mode should be off - set delta to 0 and
 272 // call _autoscroll_move()
 273 }
 274  */
 275
 276 static void
 277 _conformant_move_resize_event_cb(void *data, Evas *e, Evas_Object *obj,
 278                                  void *event_info)
 279 {
 280    Conformant_Part_Type part_type;
 281    Widget_Data *wd = elm_widget_data_get(obj);
 282
 283    if (!wd) return;
 284    part_type =  (ELM_CONFORM_INDICATOR_PART |
 285                  ELM_CONFORM_VIRTUAL_KEYPAD_PART |
 286                  ELM_CONFORM_SOFTKEY_PART);
 287    _conformant_part_sizing_eval(obj, part_type);
 288 }
 289
 290 static void
 291 _content_resize_event_cb(void *data, Evas *e, Evas_Object *obj,
 292                          void *event_info)
 293 {
 294    Evas_Object *focus_obj;
 295    Evas_Object *conformant = (Evas_Object *) data;
 296    Widget_Data *wd = elm_widget_data_get(conformant);
 297    if (!wd) return;
 298    if (wd->vkb_state == ECORE_X_VIRTUAL_KEYBOARD_STATE_OFF) return;
 299
 300    focus_obj = elm_widget_focused_object_get(conformant);
 301    if (focus_obj)
 302    {
 303       Evas_Coord x, y, w, h;
 304
 305       elm_widget_show_region_get(focus_obj, &x, &y, &w, &h);
 306
 307       if (h < _elm_config->finger_size)
 308          h = _elm_config->finger_size;
 309
 310       elm_widget_show_region_set(focus_obj, x, y, w, h, EINA_TRUE);
 311    }
 312 }
 313
 314 static void
 315 _update_autoscroll_objs(void *data)
 316 {
 317    const char *type;
 318    int i;
 319    Evas_Object *sub, *top_scroller = NULL;
 320    Evas_Object *conformant = (Evas_Object *) data;
 321    Widget_Data *wd = elm_widget_data_get(data);
 322
 323    if (!wd) return;
 324
 325    sub = elm_widget_focused_object_get(conformant);
 326    //Look up for Top most scroller in the Focus Object hierarchy inside Conformant.
 327
 328    while (sub)
 329      {
 330         type = elm_widget_type_get(sub);
 331         if (!strcmp(type, "conformant")) break;
 332         for (i = 0; i < SUB_TYPE_COUNT; i++)
 333           if (!strcmp(type, sub_type[i]))
 334                {
 335                   top_scroller = sub;
 336                   break;
 337                }
 338         sub = elm_object_parent_widget_get(sub);
 339      }
 340
 341    //If the scroller got changed by app, replace it.
 342    if (top_scroller != wd->scroller)
 343      {
 344         if (wd->scroller) evas_object_event_callback_del(wd->scroller,
 345                                                    EVAS_CALLBACK_RESIZE,
 346                                                    _content_resize_event_cb);
 347         wd->scroller = top_scroller;
 348         if (wd->scroller) evas_object_event_callback_add(wd->scroller,
 349                                                    EVAS_CALLBACK_RESIZE,
 350                                                    _content_resize_event_cb,
 351                                                    data);
 352      }
 353 }
 354
 355 static Eina_Bool
 356 _prop_change(void *data, int type __UNUSED__, void *event)
 357 {
 358 #ifdef HAVE_ELEMENTARY_X
 359    Ecore_X_Event_Window_Property *ev;
 360    Widget_Data *wd = elm_widget_data_get(data);
 361    if (!wd) return ECORE_CALLBACK_PASS_ON;
 362    ev = event;
 363    if (ev->atom == ECORE_X_ATOM_E_ILLUME_ZONE)
 364      {
 365         Conformant_Part_Type part_type;
 366
 367         part_type =  (ELM_CONFORM_INDICATOR_PART |
 368                       ELM_CONFORM_VIRTUAL_KEYPAD_PART |
 369                       ELM_CONFORM_SOFTKEY_PART);
 370         _conformant_part_sizing_eval(data, part_type);
 371         evas_object_event_callback_add(data, EVAS_CALLBACK_RESIZE,
 372                                        _conformant_move_resize_event_cb, data);
 373         evas_object_event_callback_add(data, EVAS_CALLBACK_MOVE,
 374                                        _conformant_move_resize_event_cb, data);
 375      }
 376    else if (ev->atom == ECORE_X_ATOM_E_ILLUME_INDICATOR_GEOMETRY)
 377      _conformant_part_sizing_eval(data, ELM_CONFORM_INDICATOR_PART);
 378    else if (ev->atom == ECORE_X_ATOM_E_ILLUME_SOFTKEY_GEOMETRY)
 379      _conformant_part_sizing_eval(data, ELM_CONFORM_SOFTKEY_PART);
 380    else if (ev->atom == ECORE_X_ATOM_E_ILLUME_KEYBOARD_GEOMETRY)
 381      _conformant_part_sizing_eval(data, ELM_CONFORM_VIRTUAL_KEYPAD_PART);
 382    else if (ev->atom == ECORE_X_ATOM_E_VIRTUAL_KEYBOARD_STATE)
 383      {
 384         Ecore_X_Window zone;
 385
 386         zone = ecore_x_e_illume_zone_get(ev->win);
 387         wd->vkb_state = ecore_x_e_virtual_keyboard_state_get(zone);
 388         if (wd->vkb_state == ECORE_X_VIRTUAL_KEYBOARD_STATE_OFF)
 389           {
 390              evas_object_size_hint_min_set(wd->virtualkeypad, -1, 0);
 391              evas_object_size_hint_max_set(wd->virtualkeypad, -1, 0);
 392           }
 393         else
 394           _update_autoscroll_objs(data);
 395      }
 396 #endif
 397
 398    return ECORE_CALLBACK_PASS_ON;
 399 }
 400
 401 /**
 402  * Add a new Conformant object
 403  *
 404  * @param parent The parent object
 405  * @return The new conformant object or NULL if it cannot be created
 406  *
 407  * @ingroup Conformant
 408  */
 409 EAPI Evas_Object *
 410 elm_conformant_add(Evas_Object *parent)
 411 {
 412    Evas_Object *obj;
 413    Evas *e;
 414    Widget_Data *wd;
 415
 416    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 417
 418    ELM_SET_WIDTYPE(widtype, "conformant");
 419    elm_widget_type_set(obj, "conformant");
 420    elm_widget_sub_object_add(parent, obj);
 421    elm_widget_data_set(obj, wd);
 422    elm_widget_del_hook_set(obj, _del_hook);
 423    elm_widget_theme_hook_set(obj, _theme_hook);
 424    elm_widget_can_focus_set(obj, EINA_FALSE);
 425
 426    wd->base = edje_object_add(e);
 427    _elm_theme_object_set(obj, wd->base, "conformant", "base", "default");
 428    elm_widget_resize_object_set(obj, wd->base);
 429    _swallow_conformant_parts(obj);
 430
 431 #ifdef HAVE_ELEMENTARY_X
 432    wd->prop_hdl = ecore_event_handler_add(ECORE_X_EVENT_WINDOW_PROPERTY,
 433                                           _prop_change, obj);
 434    wd->vkb_state = ECORE_X_VIRTUAL_KEYBOARD_STATE_OFF;
 435 #endif
 436
 437    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 438
 439    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 440    _sizing_eval(obj);
 441    return obj;
 442 }
 443
 444 /**
 445  * Set the content of the conformant widget
 446  *
 447  * Once the content object is set, a previously set one will be deleted.
 448  * If you want to keep that old content object, use the
 449  * elm_conformat_content_unset() function.
 450  *
 451  * @param obj The conformant object
 452  * @return The content that was being used
 453  *
 454  * @ingroup Conformant
 455  */
 456 EAPI void
 457 elm_conformant_content_set(Evas_Object *obj, Evas_Object *content)
 458 {
 459    ELM_CHECK_WIDTYPE(obj, widtype);
 460    Widget_Data *wd = elm_widget_data_get(obj);
 461    if (!wd) return;
 462    if (wd->content == content) return;
 463    if (wd->content) evas_object_del(wd->content);
 464    wd->content = content;
 465    if (content)
 466      {
 467         elm_widget_sub_object_add(obj, content);
 468         evas_object_event_callback_add(content, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 469                                        _changed_size_hints, obj);
 470         edje_object_part_swallow(wd->base, "elm.swallow.content", content);
 471      }
 472    _sizing_eval(obj);
 473 }
 474
 475 /**
 476  * Get the content of the conformant widget
 477  *
 478  * Return the content object which is set for this widget;
 479  *
 480  * @param obj The conformant object
 481  * @return The content that is being used
 482  *
 483  * @ingroup Conformant
 484  */
 485 EAPI Evas_Object *
 486 elm_conformant_content_get(const Evas_Object *obj)
 487 {
 488    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 489    Widget_Data *wd = elm_widget_data_get(obj);
 490    if (!wd) return NULL;
 491    return wd->content;
 492 }
 493
 494 /**
 495  * Unset the content of the conformant widget
 496  *
 497  * Unparent and return the content object which was set for this widget;
 498  *
 499  * @param obj The conformant object
 500  * @return The content that was being used
 501  *
 502  * @ingroup Conformant
 503  */
 504 EAPI Evas_Object *
 505 elm_conformant_content_unset(Evas_Object *obj)
 506 {
 507    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 508    Widget_Data *wd = elm_widget_data_get(obj);
 509    Evas_Object *content;
 510    if (!wd) return NULL;
 511    if (!wd->content) return NULL;
 512    content = wd->content;
 513    elm_widget_sub_object_del(obj, wd->content);
 514    edje_object_part_unswallow(wd->base, wd->content);
 515    wd->content = NULL;
 516    return content;
 517 }
 518
 519 /**
 520  * Returns the Evas_Object that represents the content area.
 521  *
 522  * @param obj The conformant object.
 523  * @return The content area of the widget.
 524  *
 525  * @ingroup Conformant
 526  */
 527 EAPI Evas_Object*
 528 elm_conformant_content_area_get(Evas_Object *obj)
 529 {
 530    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 531    Widget_Data *wd = elm_widget_data_get(obj);
 532
 533    if (!wd) return NULL;
 534    /*Finger waggle warning*/
 535    _elm_dangerous_call_check(__FUNCTION__);
 536    return (Evas_Object*)edje_object_part_object_get(wd->base, "elm.swallow.content");
 537 }
 538