tests/src/lib/elc_anchorblock.c

   1 #include <Elementary.h>
   2 #include "elm_priv.h"
   3
   4 typedef struct _Widget_Data Widget_Data;
   5 typedef struct _Elm_Anchorblock_Item_Provider Elm_Anchorblock_Item_Provider;
   6
   7 struct _Widget_Data
   8 {
   9    Evas_Object *entry;
  10    Evas_Object *hover_parent;
  11    Evas_Object *pop, *hover;
  12    Eina_List *item_providers;
  13    const char *hover_style;
  14 };
  15
  16 struct _Elm_Anchorblock_Item_Provider
  17 {
  18    Evas_Object *(*func) (void *data, Evas_Object *anchorblock, const char *item);
  19    void *data;
  20 };
  21
  22 static const char *widtype = NULL;
  23
  24 static const char SIG_ANCHOR_CLICKED[] = "anchor,clicked";
  25 static const Evas_Smart_Cb_Description _signals[] = {
  26        {SIG_ANCHOR_CLICKED, ""}, /* TODO: declare the type properly, as data is
  27                                   * being passed
  28                                   */
  29        {NULL, NULL}
  30 };
  31
  32 static void _del_pre_hook(Evas_Object *obj);
  33 static void _del_hook(Evas_Object *obj);
  34 static void _sizing_eval(Evas_Object *obj);
  35 static void _changed_size_hints(void *data, Evas *e, Evas_Object *obj, void *event_info);
  36 static void _parent_del(void *data, Evas *e, Evas_Object *obj, void *event_info);
  37 static void _mirrored_set(Evas_Object *obj, Eina_Bool rtl);
  38
  39 static void
  40 _del_pre_hook(Evas_Object *obj)
  41 {
  42    Widget_Data *wd = elm_widget_data_get(obj);
  43    if (!wd) return;
  44    evas_object_event_callback_del_full(wd->entry, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
  45                                        _changed_size_hints, obj);
  46    elm_anchorblock_hover_end(obj);
  47    elm_anchorblock_hover_parent_set(obj, NULL);
  48 }
  49
  50 static void
  51 _del_hook(Evas_Object *obj)
  52 {
  53    Widget_Data *wd = elm_widget_data_get(obj);
  54    Elm_Anchorblock_Item_Provider *ip;
  55    if (!wd) return;
  56    if (wd->hover_style) eina_stringshare_del(wd->hover_style);
  57    EINA_LIST_FREE(wd->item_providers, ip)
  58      {
  59         free(ip);
  60      }
  61    free(wd);
  62 }
  63
  64 static void
  65 _mirrored_set(Evas_Object *obj, Eina_Bool rtl)
  66 {
  67    Widget_Data *wd = elm_widget_data_get(obj);
  68    if (!wd) return;
  69    elm_widget_mirrored_set(wd->hover, rtl);
  70 }
  71
  72 static void
  73 _theme_hook(Evas_Object *obj)
  74 {
  75    Widget_Data *wd = elm_widget_data_get(obj);
  76    if (!wd) return;
  77    _elm_widget_mirrored_reload(obj);
  78    _mirrored_set(obj, elm_widget_mirrored_get(obj));
  79 }
  80
  81 static void
  82 _sizing_eval(Evas_Object *obj)
  83 {
  84    Widget_Data *wd = elm_widget_data_get(obj);
  85    Evas_Coord minw = -1, minh = -1, maxw = -1, maxh = -1;
  86    if (!wd) return;
  87    evas_object_size_hint_min_get(wd->entry, &minw, &minh);
  88    evas_object_size_hint_min_set(obj, minw, minh);
  89    evas_object_size_hint_max_set(obj, maxw, maxh);
  90 }
  91
  92 static void
  93 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
  94 {
  95    _sizing_eval(data);
  96 }
  97
  98 static void
  99 _hover_clicked(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 100 {
 101    elm_anchorblock_hover_end(data);
 102 }
 103
 104 static void
 105 _anchor_clicked(void *data, Evas_Object *obj, void *event_info)
 106 {
 107    Widget_Data *wd = elm_widget_data_get(data);
 108    Elm_Entry_Anchor_Info *info = event_info;
 109    Evas_Object *hover_parent;
 110    Elm_Entry_Anchorblock_Info ei;
 111    Evas_Coord x, w, y, h, px, py;
 112    if (!wd) return;
 113    wd->pop = elm_icon_add(obj);
 114    evas_object_move(wd->pop, info->x, info->y);
 115    evas_object_resize(wd->pop, info->w, info->h);
 116    wd->hover = elm_hover_add(obj);
 117    elm_widget_mirrored_set(wd->hover, elm_widget_mirrored_get((Evas_Object *) data));
 118    if (wd->hover_style)
 119      elm_object_style_set(wd->hover, wd->hover_style);
 120    hover_parent = wd->hover_parent;
 121    if (!hover_parent) hover_parent = obj;
 122    elm_hover_parent_set(wd->hover, hover_parent);
 123    elm_hover_target_set(wd->hover, wd->pop);
 124    ei.name = info->name;
 125    ei.button = info->button;
 126    ei.hover = wd->hover;
 127    ei.anchor.x = info->x;
 128    ei.anchor.y = info->y;
 129    ei.anchor.w = info->w;
 130    ei.anchor.h = info->h;
 131    evas_object_geometry_get(hover_parent, &x, &y, &w, &h);
 132    ei.hover_parent.x = x;
 133    ei.hover_parent.y = y;
 134    ei.hover_parent.w = w;
 135    ei.hover_parent.h = h;
 136    px = info->x + (info->w / 2);
 137    py = info->y + (info->h / 2);
 138    ei.hover_left = 1;
 139    if (px < (x + (w / 3))) ei.hover_left = 0;
 140    ei.hover_right = 1;
 141    if (px > (x + ((w * 2) / 3))) ei.hover_right = 0;
 142    ei.hover_top = 1;
 143    if (py < (y + (h / 3))) ei.hover_top = 0;
 144    ei.hover_bottom = 1;
 145    if (py > (y + ((h * 2) / 3))) ei.hover_bottom = 0;
 146
 147    if (elm_widget_mirrored_get(wd->hover))
 148      {  /* Swap right and left because they switch sides in RTL */
 149         Eina_Bool tmp = ei.hover_left;
 150         ei.hover_left = ei.hover_right;
 151         ei.hover_right = tmp;
 152      }
 153
 154    evas_object_smart_callback_call(data, SIG_ANCHOR_CLICKED, &ei);
 155    evas_object_smart_callback_add(wd->hover, "clicked", _hover_clicked, data);
 156    evas_object_show(wd->hover);
 157 }
 158
 159 static void
 160 _parent_del(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 161 {
 162    Widget_Data *wd = elm_widget_data_get(data);
 163    if (!wd) return;
 164    wd->hover_parent = NULL;
 165 }
 166
 167 static Evas_Object *
 168 _item_provider(void *data, Evas_Object *entry __UNUSED__, const char *item)
 169 {
 170    Widget_Data *wd = elm_widget_data_get(data);
 171    Eina_List *l;
 172    Elm_Anchorblock_Item_Provider *ip;
 173
 174    EINA_LIST_FOREACH(wd->item_providers, l, ip)
 175      {
 176         Evas_Object *o;
 177
 178         o = ip->func(ip->data, data, item);
 179         if (o) return o;
 180      }
 181    return NULL;
 182 }
 183
 184 static void
 185 _elm_anchorblock_text_set(Evas_Object *obj, const char *item, const char *text)
 186 {
 187    ELM_CHECK_WIDTYPE(obj, widtype);
 188    Widget_Data *wd = elm_widget_data_get(obj);
 189    if (item && strcmp(item, "default")) return;
 190    if (!wd) return;
 191    elm_object_text_set(wd->entry, text);
 192    if (wd->hover) evas_object_del(wd->hover);
 193    if (wd->pop) evas_object_del(wd->pop);
 194    wd->hover = NULL;
 195    wd->pop = NULL;
 196    _sizing_eval(obj);
 197 }
 198
 199 static const char*
 200 _elm_anchorblock_text_get(const Evas_Object *obj, const char *item)
 201 {
 202    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 203    Widget_Data *wd = elm_widget_data_get(obj);
 204    if (item && strcmp(item, "default")) return NULL;
 205    if (!wd) return NULL;
 206    return elm_object_text_get(wd->entry);
 207 }
 208
 209 EAPI Evas_Object *
 210 elm_anchorblock_add(Evas_Object *parent)
 211 {
 212    Evas_Object *obj;
 213    Evas *e;
 214    Widget_Data *wd;
 215
 216    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 217
 218    ELM_SET_WIDTYPE(widtype, "anchorblock");
 219    elm_widget_type_set(obj, "anchorblock");
 220    elm_widget_sub_object_add(parent, obj);
 221    elm_widget_data_set(obj, wd);
 222    elm_widget_del_pre_hook_set(obj, _del_pre_hook);
 223    elm_widget_del_hook_set(obj, _del_hook);
 224    elm_widget_theme_hook_set(obj, _theme_hook);
 225    elm_widget_can_focus_set(obj, EINA_TRUE);
 226    elm_widget_text_set_hook_set(obj, _elm_anchorblock_text_set);
 227    elm_widget_text_get_hook_set(obj, _elm_anchorblock_text_get);
 228
 229    wd->entry = elm_entry_add(parent);
 230    elm_entry_item_provider_prepend(wd->entry, _item_provider, obj);
 231    elm_widget_resize_object_set(obj, wd->entry);
 232    elm_entry_editable_set(wd->entry, 0);
 233    evas_object_size_hint_weight_set(wd->entry, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 234    evas_object_size_hint_align_set(wd->entry, EVAS_HINT_FILL, EVAS_HINT_FILL);
 235
 236    evas_object_event_callback_add(wd->entry, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 237                                   _changed_size_hints, obj);
 238
 239    elm_object_text_set(wd->entry, "");
 240
 241    evas_object_smart_callback_add(wd->entry, "anchor,clicked",
 242                                   _anchor_clicked, obj);
 243
 244    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 245    _sizing_eval(obj);
 246
 247    // TODO: convert Elementary to subclassing of Evas_Smart_Class
 248    // TODO: and save some bytes, making descriptions per-class and not instance!
 249    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 250    return obj;
 251 }
 252
 253 EAPI void
 254 elm_anchorblock_text_set(Evas_Object *obj, const char *text)
 255 {
 256    _elm_anchorblock_text_set(obj, NULL, text);
 257 }
 258
 259 EAPI const char*
 260 elm_anchorblock_text_get(const Evas_Object *obj)
 261 {
 262    return _elm_anchorblock_text_get(obj, NULL);
 263 }
 264
 265 EAPI void
 266 elm_anchorblock_hover_parent_set(Evas_Object *obj, Evas_Object *parent)
 267 {
 268    ELM_CHECK_WIDTYPE(obj, widtype);
 269    Widget_Data *wd = elm_widget_data_get(obj);
 270    if (!wd) return;
 271    if (wd->hover_parent)
 272      evas_object_event_callback_del_full(wd->hover_parent, EVAS_CALLBACK_DEL, _parent_del, obj);
 273    wd->hover_parent = parent;
 274    if (wd->hover_parent)
 275      evas_object_event_callback_add(wd->hover_parent, EVAS_CALLBACK_DEL, _parent_del, obj);
 276 }
 277
 278 EAPI Evas_Object *
 279 elm_anchorblock_hover_parent_get(const Evas_Object *obj)
 280 {
 281    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 282    Widget_Data *wd = elm_widget_data_get(obj);
 283    if (!wd) return NULL;
 284    return wd->hover_parent;
 285 }
 286
 287 EAPI void
 288 elm_anchorblock_hover_style_set(Evas_Object *obj, const char *style)
 289 {
 290    ELM_CHECK_WIDTYPE(obj, widtype);
 291    Widget_Data *wd = elm_widget_data_get(obj);
 292    if (!wd) return;
 293    eina_stringshare_replace(&wd->hover_style, style);
 294 }
 295
 296 EAPI const char *
 297 elm_anchorblock_hover_style_get(const Evas_Object *obj)
 298 {
 299    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 300    Widget_Data *wd = elm_widget_data_get(obj);
 301    if (!wd) return NULL;
 302    return wd->hover_style;
 303 }
 304
 305 EAPI void
 306 elm_anchorblock_hover_end(Evas_Object *obj)
 307 {
 308    ELM_CHECK_WIDTYPE(obj, widtype);
 309    Widget_Data *wd = elm_widget_data_get(obj);
 310    if (!wd) return;
 311    if (wd->hover) evas_object_del(wd->hover);
 312    if (wd->pop) evas_object_del(wd->pop);
 313    wd->hover = NULL;
 314    wd->pop = NULL;
 315 }
 316
 317 EAPI void
 318 elm_anchorblock_item_provider_append(Evas_Object *obj, Evas_Object *(*func) (void *data, Evas_Object *anchorblock, const char *item), void *data)
 319 {
 320    ELM_CHECK_WIDTYPE(obj, widtype);
 321    Widget_Data *wd = elm_widget_data_get(obj);
 322    if (!wd) return;
 323    EINA_SAFETY_ON_NULL_RETURN(func);
 324    Elm_Anchorblock_Item_Provider *ip = calloc(1, sizeof(Elm_Anchorblock_Item_Provider));
 325    if (!ip) return;
 326    ip->func = func;
 327    ip->data = data;
 328    wd->item_providers = eina_list_append(wd->item_providers, ip);
 329 }
 330
 331 EAPI void
 332 elm_anchorblock_item_provider_prepend(Evas_Object *obj, Evas_Object *(*func) (void *data, Evas_Object *anchorblock, const char *item), void *data)
 333 {
 334    ELM_CHECK_WIDTYPE(obj, widtype);
 335    Widget_Data *wd = elm_widget_data_get(obj);
 336    if (!wd) return;
 337    EINA_SAFETY_ON_NULL_RETURN(func);
 338    Elm_Anchorblock_Item_Provider *ip = calloc(1, sizeof(Elm_Anchorblock_Item_Provider));
 339    if (!ip) return;
 340    ip->func = func;
 341    ip->data = data;
 342    wd->item_providers = eina_list_prepend(wd->item_providers, ip);
 343 }
 344
 345 EAPI void
 346 elm_anchorblock_item_provider_remove(Evas_Object *obj, Evas_Object *(*func) (void *data, Evas_Object *anchorblock, const char *item), void *data)
 347 {
 348    ELM_CHECK_WIDTYPE(obj, widtype);
 349    Widget_Data *wd = elm_widget_data_get(obj);
 350    Eina_List *l;
 351    Elm_Anchorblock_Item_Provider *ip;
 352    if (!wd) return;
 353    EINA_SAFETY_ON_NULL_RETURN(func);
 354    EINA_LIST_FOREACH(wd->item_providers, l, ip)
 355      {
 356         if ((ip->func == func) && (ip->data == data))
 357           {
 358              wd->item_providers = eina_list_remove_list(wd->item_providers, l);
 359              free(ip);
 360              return;
 361           }
 362      }
 363 }