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// Note: @1.23 Initial release has infrastructure to support more mode than homogeneous, but isn't exposed in the API nor supported.
#ifdef HAVE_CONFIG_H
# include "elementary_config.h"
#endif
#define ELM_LAYOUT_PROTECTED
#define EFL_UI_SCROLL_MANAGER_PROTECTED
#define EFL_UI_SCROLLBAR_PROTECTED
#define EFL_UI_WIDGET_FOCUS_MANAGER_PROTECTED
#include <Efl_Ui.h>
#include <Elementary.h>
#include "elm_widget.h"
#include "elm_priv.h"
#include "inttypes.h"
#include "efl_ui_collection_view_focus_manager.eo.h"
#ifndef VIEWPORT_ENABLE
# undef VIEWPORT_ENABLE
#endif
typedef struct _Efl_Ui_Collection_View_Data Efl_Ui_Collection_View_Data;
typedef struct _Efl_Ui_Collection_Viewport Efl_Ui_Collection_Viewport;
typedef struct _Efl_Ui_Collection_View_Focus_Manager_Data Efl_Ui_Collection_View_Focus_Manager_Data;
typedef struct _Efl_Ui_Collection_Item Efl_Ui_Collection_Item;
typedef struct _Efl_Ui_Collection_Item_Lookup Efl_Ui_Collection_Item_Lookup;
typedef struct _Efl_Ui_Collection_Request Efl_Ui_Collection_Request;
struct _Efl_Ui_Collection_Item
{
Efl_Gfx_Entity *entity;
Efl_Model *model;
};
struct _Efl_Ui_Collection_Item_Lookup
{
EINA_RBTREE;
unsigned int index;
Efl_Ui_Collection_Item item;
};
struct _Efl_Ui_Collection_Viewport
{
Efl_Ui_Collection_Item *items;
unsigned int offset;
uint16_t count;
};
struct _Efl_Ui_Collection_Request
{
Eina_Future *f;
unsigned int offset;
unsigned int length;
Eina_Bool need_size : 1;
Eina_Bool need_entity : 1;
Eina_Bool entity_requested : 1;
};
struct _Efl_Ui_Collection_View_Data
{
Efl_Ui_Factory *factory;
Efl_Ui_Position_Manager_Entity *manager;
Efl_Ui_Scroll_Manager *scroller;
Efl_Ui_Pan *pan;
Efl_Gfx_Entity *sizer;
Efl_Model *model;
Efl_Model *multi_selectable_async_model;
#ifdef VIEWPORT_ENABLE
Efl_Ui_Collection_Viewport *viewport[3];
#endif
Eina_Rbtree *cache;
Eina_List *requests; // Array of Efl_Ui_Collection_Request in progress
struct {
Efl_Gfx_Entity *last; // The last item of the collection, so focus can start by the end if necessary.
Efl_Gfx_Entity *previously; // The previously selected item in the collection, so focus can come back to it.
} focus;
unsigned int start_id;
unsigned int end_id;
Eina_Size2D content_min_size;
Efl_Ui_Layout_Orientation direction;
Efl_Ui_Select_Mode mode;
struct {
Eina_Bool w : 1;
Eina_Bool h : 1;
} match_content;
Efl_Ui_Position_Manager_Request_Range current_range;
};
struct _Efl_Ui_Collection_View_Focus_Manager_Data
{
Efl_Ui_Collection_View *collection;
};
static const char *COLLECTION_VIEW_MANAGED = "_collection_view.managed";
static const char *COLLECTION_VIEW_MANAGED_YES = "yes";
#define MY_CLASS EFL_UI_COLLECTION_VIEW_CLASS
#define MY_DATA_GET(obj, pd) \
Efl_Ui_Collection_View_Data *pd = efl_data_scope_get(obj, MY_CLASS);
static Eina_Bool _entity_request(Efl_Ui_Collection_View *obj, Efl_Ui_Collection_Request *request);
static void _idle_cb(void *data, const Efl_Event *event);
static int
_cache_tree_lookup(const Eina_Rbtree *node, const void *key,
int length EINA_UNUSED, void *data EINA_UNUSED)
{
const Efl_Ui_Collection_Item_Lookup *n = (Efl_Ui_Collection_Item_Lookup *)node;
const unsigned int *index = key;
if (n->index > *index)
return 1;
if (n->index < *index)
return -1;
return 0;
}
static Eina_Rbtree_Direction
_cache_tree_cmp(const Eina_Rbtree *left, const Eina_Rbtree *right, void *data EINA_UNUSED)
{
Efl_Ui_Collection_Item_Lookup *l = (Efl_Ui_Collection_Item_Lookup *)left;
Efl_Ui_Collection_Item_Lookup *r = (Efl_Ui_Collection_Item_Lookup *)right;
return l->index < r->index ? EINA_RBTREE_LEFT : EINA_RBTREE_RIGHT;
}
static Eina_Value
_undo_item_selected_then(Eo *item, void *data EINA_UNUSED, Eina_Error err)
{
Eina_Value *get;
Eina_Bool item_selected = efl_ui_selectable_selected_get(item);
Eina_Bool model_selected = EINA_FALSE;
get = efl_model_property_get(efl_ui_view_model_get(item), "self.selected");
eina_value_bool_get(get, &model_selected);
eina_value_free(get);
if ((!!model_selected) != (!!item_selected))
efl_ui_selectable_selected_set(item, model_selected);
return eina_value_error_init(err);
}
static void
_selected_item_cb(void *data EINA_UNUSED, const Efl_Event *ev)
{
// Link back property to model, maybe just trigger event on the item should be enough
Eina_Value *get;
Eina_Bool item_selected = efl_ui_selectable_selected_get(ev->object);
Eina_Bool model_selected = EINA_FALSE;
Eina_Value set = eina_value_bool_init(!!item_selected);
get = efl_model_property_get(efl_ui_view_model_get(ev->object), "self.selected");
eina_value_bool_get(get, &model_selected);
eina_value_free(get);
if ((!!model_selected) != (!!item_selected))
{
Eina_Future *f;
f = efl_model_property_set(efl_ui_view_model_get(ev->object), "self.selected", &set);
// In case the mode is preventing the change, we need to update the UI back. So handle error case
efl_future_then(ev->object, f,
.error = _undo_item_selected_then);
}
eina_value_flush(&set);
}
static void
_redirect_item_cb(void *data, const Efl_Event *ev)
{
Eo *obj = data;
#define REDIRECT_EVT(Desc, Item_Desc) \
if (Desc == ev->desc) \
{ \
Efl_Ui_Item_Clickable_Clicked item_clicked; \
Efl_Input_Clickable_Clicked *clicked = ev->info; \
\
item_clicked.clicked = *clicked; \
item_clicked.item = ev->object; \
\
efl_event_callback_call(obj, Item_Desc, &item_clicked); \
}
#define REDIRECT_EVT_PRESS(Desc, Item_Desc) \
if (Desc == ev->desc) \
{ \
Efl_Ui_Item_Clickable_Pressed item_pressed; \
int *button = ev->info; \
\
item_pressed.button = *button; \
item_pressed.item = ev->object; \
\
efl_event_callback_call(obj, Item_Desc, &item_pressed); \
}
REDIRECT_EVT_PRESS(EFL_INPUT_EVENT_PRESSED, EFL_UI_EVENT_ITEM_PRESSED);
REDIRECT_EVT_PRESS(EFL_INPUT_EVENT_UNPRESSED, EFL_UI_EVENT_ITEM_UNPRESSED);
REDIRECT_EVT_PRESS(EFL_INPUT_EVENT_LONGPRESSED, EFL_UI_EVENT_ITEM_LONGPRESSED);
REDIRECT_EVT(EFL_INPUT_EVENT_CLICKED_ANY, EFL_UI_EVENT_ITEM_CLICKED_ANY);
REDIRECT_EVT(EFL_INPUT_EVENT_CLICKED, EFL_UI_EVENT_ITEM_CLICKED);
#undef REDIRECT_EVT
#undef REDIRECT_EVT_PRESS
}
EFL_CALLBACKS_ARRAY_DEFINE(active_item_cbs,
{ EFL_UI_EVENT_SELECTED_CHANGED, _selected_item_cb },
{ EFL_INPUT_EVENT_PRESSED, _redirect_item_cb },
{ EFL_INPUT_EVENT_UNPRESSED, _redirect_item_cb },
{ EFL_INPUT_EVENT_LONGPRESSED, _redirect_item_cb },
{ EFL_INPUT_EVENT_CLICKED, _redirect_item_cb },
{ EFL_INPUT_EVENT_CLICKED_ANY, _redirect_item_cb });
static void
_entity_cleanup(Efl_Ui_Collection_View *obj, Efl_Ui_Factory *factory,
Efl_Ui_Collection_Item *item, Eina_Array *scheduled_release)
{
Efl_Gfx_Entity *entities[1];
entities[0] = item->entity;
if (!entities[0]) return ;
efl_event_callback_array_del(entities[0], active_item_cbs(), obj);
efl_replace(&item->entity, NULL);
efl_event_callback_call(obj, EFL_UI_COLLECTION_VIEW_EVENT_ITEM_UNREALIZED, entities[0]);
if (!scheduled_release)
{
efl_ui_factory_release(factory, EINA_C_ARRAY_ITERATOR_NEW(entities));
}
else
{
eina_array_push(scheduled_release, entities[0]);
}
}
static void
_item_cleanup(Efl_Ui_Collection_View *obj, Efl_Ui_Factory *factory,
Efl_Ui_Collection_Item *item, Eina_Array *scheduled_release)
{
efl_replace(&item->model, NULL);
_entity_cleanup(obj, factory, item, scheduled_release);
}
static void
_cache_item_free(Eina_Rbtree *node, void *data)
{
Efl_Ui_Collection_Item_Lookup *n = (void*) node;
MY_DATA_GET(data, pd);
_item_cleanup(data, pd->factory, &n->item, NULL);
free(n);
}
static void
_cache_cleanup(Efl_Ui_Collection_View *obj, Efl_Ui_Collection_View_Data *pd)
{
eina_rbtree_delete(pd->cache, _cache_item_free, obj);
pd->cache = NULL;
}
static void
_all_cleanup(Efl_Ui_Collection_View *obj, Efl_Ui_Collection_View_Data *pd)
{
Efl_Ui_Collection_Request *request;
Eina_List *l, *ll;
#ifdef VIEWPORT_ENABLE
unsigned int i;
#endif
_cache_cleanup(obj, pd);
#ifdef VIEWPORT_ENABLE
for (i = 0; i < 3; i++)
{
unsigned int j;
if (!pd->viewport[i]) continue;
for (j = 0; j < pd->viewport[i]->count; j++)
_item_cleanup(obj, pd->factory, &(pd->viewport[i]->items[j]));
}
#endif
efl_replace(&pd->focus.previously, NULL);
efl_replace(&pd->focus.last, NULL);
EINA_LIST_FOREACH_SAFE(pd->requests, l, ll, request)
eina_future_cancel(request->f);
}
static inline Eina_Bool
_size_from_model(Efl_Model *model, Eina_Size2D *r, const char *width, const char *height)
{
Eina_Value *vw, *vh;
Eina_Bool success = EINA_FALSE;
EINA_SAFETY_ON_NULL_RETURN_VAL(model, EINA_FALSE);
vw = efl_model_property_get(model, width);
vh = efl_model_property_get(model, height);
if (eina_value_type_get(vw) == EINA_VALUE_TYPE_ERROR ||
eina_value_type_get(vh) == EINA_VALUE_TYPE_ERROR)
goto on_error;
if (!eina_value_int_convert(vw, &(r->w))) r->w = 0;
if (!eina_value_int_convert(vh, &(r->h))) r->h = 0;
success = EINA_TRUE;
on_error:
eina_value_free(vw);
eina_value_free(vh);
return success;
}
static inline void
_size_to_model(Efl_Model *model, Eina_Size2D state)
{
Eina_Value vw, vh;
vw = eina_value_int_init(state.w);
vh = eina_value_int_init(state.h);
efl_model_property_set(model, "self.width", &vw);
efl_model_property_set(model, "self.height", &vh);
eina_value_flush(&vw);
eina_value_flush(&vh);
}
#define ITEM_BASE_SIZE_FROM_MODEL(Model, Size) _size_from_model(Model, &Size, "item.width", "item.height")
#define ITEM_SIZE_FROM_MODEL(Model, Size) _size_from_model(Model, &Size, "self.width", "self.height")
static Eina_List *
_request_add(Eina_List *requests, Efl_Ui_Collection_Request **request,
unsigned int index, Eina_Bool need_entity)
{
if (!(*request)) goto create;
if ((*request)->offset + (*request)->length == index)
{
if (need_entity) (*request)->need_entity = EINA_TRUE;
if (!need_entity) (*request)->need_size = EINA_TRUE;
(*request)->length += 1;
return requests;
}
requests = eina_list_append(requests, *request);
create:
*request = calloc(1, sizeof (Efl_Ui_Collection_Request));
if (!(*request)) return requests;
(*request)->offset = index;
(*request)->length = 1;
// At this point, we rely on the model caching ability to avoid recreating model
(*request)->need_entity = !!need_entity;
(*request)->need_size = EINA_TRUE;
return requests;
}
static Eina_Value
_model_fetched_cb(Eo *obj, void *data, const Eina_Value v)
{
MY_DATA_GET(obj, pd);
Efl_Ui_Collection_Request *request = data;
Efl_Model *child;
unsigned int i, len;
Eina_Bool request_entity = EINA_FALSE;
EINA_VALUE_ARRAY_FOREACH(&v, len, i, child)
{
Efl_Ui_Collection_Item_Lookup *insert;
Eina_Size2D item_size;
#ifdef VIEWPORT_ENABLE
unsigned int v;
for (v = 0; v < 3; ++v)
{
if (!pd->viewport[v]) continue;
if ((pd->viewport[v]->offset <= request->offset + i) &&
(request->offset + i < pd->viewport[v]->offset + pd->viewport[v]->count))
{
unsigned int index = request->offset + i - pd->viewport[v]->offset;
efl_replace(&pd->viewport[v]->items[index].model, child);
child = NULL;
break;
}
}
#endif
// When requesting a model, it should not be in the cache prior to the request
if (!child) continue;
unsigned int search_index = request->offset + i;
insert = (void*) eina_rbtree_inline_lookup(pd->cache, &search_index,
sizeof (search_index), _cache_tree_lookup,
NULL);
if (insert)
{
if (!insert->item.entity && request->need_entity)
{
//drop the old model here, overwrite with model + view
efl_replace(&insert->item.model, child);
}
else
ERR("Inserting a model that was already fetched, dropping new model %u", search_index);
}
else
{
insert = calloc(1, sizeof (Efl_Ui_Collection_Item_Lookup));
if (!insert) continue;
insert->index = request->offset + i;
insert->item.model = efl_ref(child);
pd->cache = eina_rbtree_inline_insert(pd->cache, EINA_RBTREE_GET(insert), _cache_tree_cmp, NULL);
}
if (!ITEM_SIZE_FROM_MODEL(insert->item.model, item_size))
request_entity = EINA_TRUE;
}
if (request_entity)
{
request->need_entity = EINA_TRUE;
if (!request->entity_requested)
_entity_request(obj, request);
}
else if (request->need_size)
{
efl_ui_position_manager_entity_item_size_changed(pd->manager, request->offset,
request->offset + len);
}
return v;
}
static void
_model_free_cb(Eo *o, void *data, const Eina_Future *dead_future EINA_UNUSED)
{
MY_DATA_GET(o, pd);
Efl_Ui_Collection_Request *request = data;
if (!request->entity_requested)
{
pd->requests = eina_list_remove(pd->requests, request);
free(request);
}
}
static Eina_Value
_entity_fetch_cb(Eo *obj, void *data EINA_UNUSED, const Eina_Value v)
{
MY_DATA_GET(obj, pd);
Efl_Model *child;
Eina_Future *r;
Eina_Array tmp;
unsigned int i, len;
eina_array_step_set(&tmp, sizeof (Eina_Array), 4);
EINA_VALUE_ARRAY_FOREACH(&v, len, i, child)
{
eina_array_push(&tmp, child);
}
r = efl_ui_view_factory_create_with_event(pd->factory, eina_array_iterator_new(&tmp));
eina_array_flush(&tmp);
return eina_future_as_value(r);
}
static inline unsigned int
_lookup_entity_index(Efl_Gfx_Entity *entity, Efl_Model **model)
{
Efl_Model *fetch;
fetch = efl_ui_view_model_get(entity);
if (model) *model = fetch;
return efl_composite_model_index_get(fetch);
}
static void
_last_entity_update(Efl_Ui_Collection_View_Data *pd, Efl_Gfx_Entity *entity)
{
Efl_Model *new_model, *old_model;
unsigned int new_index, old_index;
if (!pd->focus.last) goto replace;
new_index = _lookup_entity_index(entity, &new_model);
old_index = _lookup_entity_index(pd->focus.last, &old_model);
if (new_index <= old_index) return;
replace:
efl_replace(&pd->focus.last, entity);
}
static inline Eina_Bool
_entity_propagate(Efl_Model *model, Efl_Gfx_Entity *entity)
{
Eina_Size2D item_size;
if (efl_key_data_get(entity, "efl.ui.widget.factory.size_set"))
{
return EINA_FALSE;
}
if (ITEM_SIZE_FROM_MODEL(model, item_size))
{
efl_gfx_hint_size_min_set(entity, item_size);
efl_canvas_group_need_recalculate_set(entity, EINA_FALSE);
if (efl_isa(entity, EFL_UI_ITEM_CLASS)) efl_ui_item_calc_locked_set(entity, EINA_TRUE);
return EINA_FALSE;
}
efl_canvas_group_calculate(entity);
item_size = efl_gfx_hint_size_combined_min_get(entity);
efl_canvas_group_need_recalculate_set(entity, EINA_FALSE);
_size_to_model(model, item_size);
return EINA_TRUE;
}
static Eina_Value
_entity_fetched_cb(Eo *obj, void *data, const Eina_Value v)
{
MY_DATA_GET(obj, pd);
Efl_Ui_Collection_Request *request = data;
Efl_Gfx_Entity *child;
unsigned int i, len;
unsigned int updated_size_start_id = 0, updated_entity_start_id = 0;
Eina_Bool updated_size = EINA_FALSE, updated_entity = EINA_FALSE;
Evas *e;
e = evas_object_evas_get(obj);
evas_event_freeze(e);
EINA_VALUE_ARRAY_FOREACH(&v, len, i, child)
{
Efl_Ui_Collection_Item_Lookup *lookup;
unsigned int search_index;
//unsigned int v;
efl_key_data_set(child, COLLECTION_VIEW_MANAGED, COLLECTION_VIEW_MANAGED_YES);
/* fix eventing in scroller by ensuring collection items are in the scroller hierarchy */
efl_ui_item_container_set(child, obj);
efl_ui_widget_sub_object_add(obj, child);
efl_canvas_group_member_add(pd->pan, child);
efl_gfx_entity_visible_set(child, EINA_FALSE);
#ifdef VIEWPORT_ENABLE
for (v = 0; v < 3; ++v)
{
if (!pd->viewport[v]) continue;
if ((pd->viewport[v]->offset <= request->offset + i) &&
(request->offset + i < pd->viewport[v]->offset + pd->viewport[v]->count))
{
unsigned int index = request->offset + i - pd->viewport[v]->offset;
if (pd->viewport[v]->items[index].entity)
{
ERR("Entity already existing for id %d", i);
efl_unref(pd->viewport[v]->items[index].entity);
efl_del(pd->viewport[v]->items[index].entity);
pd->viewport[v]->items[index].entity = NULL;
}
efl_replace(&pd->viewport[v]->items[index].entity, child);
if (_entity_propagate(pd->viewport[v]->items[index].model, child))
{
if (!updated_size)
{
updated_size = EINA_TRUE;
updated_size_start_id = index;
}
}
else
{
if (updated_size)
{
efl_ui_position_manager_entity_item_size_changed(pd->manager,
updated_size_start_id,
index - 1);
updated_size = EINA_FALSE;
}
}
child = NULL;
break;
}
}
#endif
// When requesting an entity, the model should already be in the cache
if (!child) continue;
search_index = request->offset + i;
lookup = (void*) eina_rbtree_inline_lookup(pd->cache, &search_index,
sizeof (search_index), _cache_tree_lookup,
NULL);
if (!lookup)
{
Efl_Gfx_Entity *entities[1] = { child };
efl_ui_factory_release(pd->factory, EINA_C_ARRAY_ITERATOR_NEW(entities));
continue;
}
if (lookup->item.entity)
{
ERR("Entity already existing for id %u", search_index);
_entity_cleanup(obj, pd->factory, &lookup->item, NULL);
}
lookup->item.entity = efl_ref(child);
efl_event_callback_array_add(child, active_item_cbs(), obj);
efl_event_callback_call(obj, EFL_UI_COLLECTION_VIEW_EVENT_ITEM_REALIZED, child);
if (!updated_entity)
{
updated_entity = EINA_TRUE;
updated_entity_start_id = search_index;
}
if (_entity_propagate(lookup->item.model, child))
{
if (!updated_size)
{
updated_size = EINA_TRUE;
updated_size_start_id = search_index;
}
}
else
{
if (updated_size)
{
efl_ui_position_manager_entity_item_size_changed(pd->manager,
updated_size_start_id,
search_index - 1);
updated_size = EINA_FALSE;
}
}
}
evas_event_thaw(e);
evas_event_thaw_eval(e);
// Check if the last child is also the list item in the list
_last_entity_update(pd, child);
// Currently position manager will flush its entire size cache on update, so only do
// it when necessary to improve performance.
if (updated_size || request->need_size)
{
efl_ui_position_manager_entity_item_size_changed(pd->manager,
updated_size_start_id,
request->offset + i - 1);
updated_size = EINA_FALSE;
}
// Notify the position manager that new entity are ready to display
if (updated_entity)
{
efl_ui_position_manager_entity_entities_ready(pd->manager,
updated_entity_start_id,
request->offset + i - 1);
efl_event_callback_del(efl_main_loop_get(), EFL_LOOP_EVENT_IDLE, _idle_cb, obj);
efl_event_callback_add(efl_main_loop_get(), EFL_LOOP_EVENT_IDLE, _idle_cb, obj);
}
return v;
}
static void
_entity_free_cb(Eo *o, void *data, const Eina_Future *dead_future EINA_UNUSED)
{
MY_DATA_GET(o, pd);
Efl_Ui_Collection_Request *request = data;
pd->requests = eina_list_remove(pd->requests, request);
free(request);
}
static Eina_Bool
_focus_lookup(Efl_Ui_Collection_View_Data *pd, unsigned int search_index,
Efl_Gfx_Entity **entity, Efl_Model **model)
{
unsigned int idx;
if (entity) *entity = pd->focus.last;
if (pd->focus.last)
{
idx = _lookup_entity_index(pd->focus.last, model);
if (idx == search_index) return EINA_TRUE;
}
if (entity) *entity = pd->focus.previously;
if (pd->focus.previously)
{
idx = _lookup_entity_index(pd->focus.previously, model);
if (idx == search_index) return EINA_TRUE;
}
if (entity) *entity = NULL;
if (model) *model = NULL;
return EINA_FALSE;
}
static Efl_Ui_Collection_Item_Lookup *
_build_from_focus(Efl_Ui_Collection_View_Data *pd, unsigned int search_index,
Efl_Model **model)
{
Efl_Ui_Collection_Item_Lookup *insert;
Efl_Gfx_Entity *entity = NULL;
// Not found in the cache lookup, but just maybe
if (!_focus_lookup(pd, search_index, &entity, model)) return NULL;
// Lucky us, let's add it to the cache
insert = calloc(1, sizeof (Efl_Ui_Collection_Item_Lookup));
if (!insert) return NULL;
insert->index = search_index;
insert->item.model = efl_ref(*model);
insert->item.entity = efl_ref(entity);
pd->cache = eina_rbtree_inline_insert(pd->cache, EINA_RBTREE_GET(insert),
_cache_tree_cmp, NULL);
return insert;
}
static Eina_List *
_cache_size_fetch(Eina_List *requests, Efl_Ui_Collection_Request **request,
Efl_Ui_Collection_View_Data *pd,
unsigned int search_index,
Efl_Ui_Position_Manager_Size_Batch_Entity *target,
Eina_Size2D item_base)
{
Efl_Ui_Collection_Item_Lookup *lookup;
Efl_Model *model = NULL;
Eina_Size2D item_size = item_base;
if (!pd->cache) goto not_found;
lookup = (void*) eina_rbtree_inline_lookup(pd->cache, &search_index,
sizeof (search_index), _cache_tree_lookup,
NULL);
// In the cache we should always have model, so no need to check for it
if (lookup)
{
model = lookup->item.model;
}
else
{
lookup = _build_from_focus(pd, search_index, &model);
if (!lookup) goto not_found;
}
// If we do not know the size
if (!ITEM_SIZE_FROM_MODEL(model, item_size))
{
if (lookup->item.entity)
{
ERR("Got a model '%s' and an item '%s', but no size. Recalculating.",
efl_debug_name_get(model), efl_debug_name_get(lookup->item.entity));
_entity_propagate(model, lookup->item.entity);
if (!ITEM_SIZE_FROM_MODEL(model, item_size))
{
CRI("No size for itme '%s' after recalculating. This is bad.",
efl_debug_name_get(lookup->item.entity));
}
}
else if (!ITEM_BASE_SIZE_FROM_MODEL(pd->model, item_size))
{
INF("No base size yet available. Making things up.");
item_size.w = 1;
item_size.h = 1;
}
}
target->size = item_size;
target->element_depth = 0;
target->depth_leader = EINA_FALSE;
return requests;
not_found:
requests = _request_add(requests, request, search_index, EINA_FALSE);
target->size = item_size;
target->element_depth = 0;
target->depth_leader = EINA_FALSE;
return requests;
}
static Eina_List *
_cache_entity_fetch(Eina_List *requests, Efl_Ui_Collection_Request **request,
Efl_Ui_Collection_View_Data *pd,
unsigned int search_index,
Efl_Ui_Position_Manager_Object_Batch_Entity *target)
{
Efl_Ui_Collection_Item_Lookup *lookup;
Efl_Model *model = NULL;
if (!pd->cache) goto not_found;
lookup = (void*) eina_rbtree_inline_lookup(pd->cache, &search_index,
sizeof (search_index), _cache_tree_lookup,
NULL);
if (!lookup) lookup = _build_from_focus(pd, search_index, &model);
if (!lookup) goto not_found;
if (!lookup->item.entity) goto not_found;
if (target) target->entity = lookup->item.entity;
goto finish;
not_found:
requests = _request_add(requests, request, search_index, EINA_TRUE);
if (target) target->entity = NULL;
finish:
if (!target) return requests;
target->element_depth = 0;
target->depth_leader = EINA_FALSE;
return requests;
}
static Eina_Bool
_entity_request(Efl_Ui_Collection_View *obj, Efl_Ui_Collection_Request *request)
{
if (request->entity_requested) return EINA_TRUE;
request->f = efl_future_then(obj, request->f,
.success_type = EINA_VALUE_TYPE_ARRAY,
.success = _entity_fetch_cb);
request->f = efl_future_then(obj, request->f,
.success_type = EINA_VALUE_TYPE_ARRAY,
.success = _entity_fetched_cb,
.data = request,
.free = _entity_free_cb);
request->entity_requested = EINA_TRUE;
request->need_entity = EINA_TRUE;
return EINA_TRUE;
}
static inline Eina_Bool
_entity_inflight_request(Efl_Ui_Collection_View *obj,
Efl_Ui_Collection_Request *request,
Efl_Ui_Collection_Request *inflight)
{
inflight->need_size |= request->need_size;
if (request->need_entity == EINA_FALSE) return EINA_TRUE;
return _entity_request(obj, inflight);
}
static Eina_List *
_batch_request_flush(Eina_List *requests,
Efl_Ui_Collection_View *obj,
Efl_Ui_Collection_View_Data *pd)
{
Efl_Ui_Collection_Request *request;
Eina_List *ll, *next_list_item;
EINA_LIST_FOREACH_SAFE(requests, ll, next_list_item, request)
{
// Check request intersection with all pending request
Efl_Ui_Collection_Request *inflight;
Efl_Model *model;
Eina_List *l;
EINA_LIST_FOREACH(pd->requests, l, inflight)
{
unsigned int istart = inflight->offset;
unsigned int iend = inflight->offset + inflight->length;
unsigned int rstart = request->offset;
unsigned int rend = request->offset + request->length;
// Way before
if (rend < istart) continue;
// Way after
if (rstart >= iend) continue;
// request included in current inflight request
if (rstart >= istart && rend <= iend)
{
if (!_entity_inflight_request(obj, request, inflight)) continue;
// In this case no need to start a request
requests = eina_list_remove_list(requests, ll);
free(request);
request = NULL;
break;
}
// request overflow left and right
if (rstart < istart && iend < rend)
{
if (!_entity_inflight_request(obj, request, inflight)) continue;
// Remove the center portion of the request by emitting a new one
Efl_Ui_Collection_Request *rn;
rn = calloc(1, sizeof (Efl_Ui_Collection_Request));
if (!rn) break;
rn->offset = iend;
rn->length = rend - iend;
rn->need_entity = request->need_entity;
rn->need_size = request->need_size;
requests = eina_list_append(requests, rn);
request->length = istart - rstart;
continue;
}
// request overflow left
if (rstart < istart && rend > istart && rend <= iend)
{
if (!_entity_inflight_request(obj, request, inflight)) continue;
request->length = istart - rstart;
continue;
}
// request overflow right
if (rstart >= istart && rstart < iend && iend <= rend)
{
if (!_entity_inflight_request(obj, request, inflight)) continue;
request->offset = iend;
request->length = rend - iend;
continue;
}
}
if (!request) continue;
model = pd->model;
// Are we ready yet
if (!model)
{
requests = eina_list_remove_list(requests, ll);
free(request);
continue;
}
// Is the request inside the limit of the model?
if (request->offset >= efl_model_children_count_get(model))
{
requests = eina_list_remove_list(requests, ll);
free(request);
continue;
}
// Is its limit outside the model limit?
if (request->offset + request->length >= efl_model_children_count_get(model))
{
request->length = efl_model_children_count_get(model) - request->offset;
}
// We now have a request, time to trigger a fetch
// We assume here that we are always fetching the model (model_requested must be true)
request->f = efl_model_children_slice_get(model, request->offset, request->length);
request->f = efl_future_then(obj, request->f,
.success = _model_fetched_cb,
.data = request,
.free = _model_free_cb);
eina_list_move_list(&pd->requests, &requests, ll);
}
return eina_list_free(requests);
}
static Efl_Ui_Position_Manager_Size_Batch_Result
_batch_size_cb(void *data, Efl_Ui_Position_Manager_Size_Call_Config conf, Eina_Rw_Slice memory)
{
MY_DATA_GET(data, pd);
Efl_Ui_Position_Manager_Size_Batch_Entity *sizes;
Efl_Ui_Collection_Request *request = NULL;
Efl_Ui_Position_Manager_Size_Batch_Result result = {0};
Efl_Model *parent;
Eina_List *requests = NULL;
Eina_Size2D item_base = {0};
unsigned int limit;
unsigned int idx = 0;
// get the approximate value from the tree node
parent = pd->model;
sizes = memory.mem;
//count = efl_model_children_count_get(parent);
limit = conf.range.end_id - conf.range.start_id;
ITEM_BASE_SIZE_FROM_MODEL(parent, item_base);
// Look in the temporary cache now for the beginning of the buffer
#ifdef VIEWPORT_ENABLE
if (pd->viewport[0] && ((unsigned int)(conf.range.start_id + idx) < pd->viewport[0]->offset))
{
while ((unsigned int)(conf.range.start_id + idx) < pd->viewport[0]->offset && idx < limit)
{
unsigned int search_index = conf.range.start_id + idx;
requests = _cache_size_fetch(requests, &request, pd,
search_index, &sizes[idx], item_base);
idx++;
}
}
// Then look in our buffer view if the needed information can be found there
for (i = 0; i < 3; ++i)
{
if (!pd->viewport[i]) continue;
while (idx < limit &&
(pd->viewport[i]->offset <= conf.range.start_id + idx) &&
(conf.range.start_id + idx < (pd->viewport[i]->offset + pd->viewport[i]->count)))
{
unsigned int offset = conf.range.start_id + idx - pd->viewport[i]->offset;
Efl_Model *model = pd->viewport[i]->items[offset].model;
Efl_Gfx_Entity *entity = pd->viewport[i]->items[offset].entity;
Eina_Bool entity_request = EINA_FALSE;
if (model)
{
Eina_Size2D item_size;
Eina_Bool found = EINA_FALSE;
if (ITEM_SIZE_FROM_MODEL(model, item_size))
found = EINA_TRUE;
if (!found && entity)
{
item_size = efl_gfx_hint_size_combined_min_get(entity);
//if the size is 0 here, then we are running into trouble,
//fetch size from the parent model, where some fallback is defined
if (item_size.h == 0 && item_size.w == 0)
{
item_size = item_base;
found = EINA_TRUE;
}
else
{
_size_to_model(model, item_size);
found = EINA_TRUE;
}
}
if (found)
{
sizes[idx].size = item_size;
sizes[idx].element_depth = 0;
sizes[idx].depth_leader = EINA_FALSE;
goto done;
}
// We will need an entity to calculate this size
entity_request = EINA_TRUE;
}
// No data, add to the requests
requests = _request_add(requests, &request, conf.range.start_id + idx, entity_request);
sizes[idx].size = item_base;
sizes[idx].element_depth = 0;
sizes[idx].depth_leader = EINA_FALSE;
done:
idx++;
}
}
// Look in the temporary cache now for the end of the buffer
while (idx < limit)
{
unsigned int search_index = conf.range.start_id + idx;
requests = _cache_size_fetch(requests, &request, pd,
search_index, &sizes[idx], item_base);
idx++;
}
#endif
/* if (conf.cache_request) */
/* { */
/* printf("CACHING SIZE CALL\n"); */
/* while (idx < limit) */
/* { */
/* sizes[idx].depth_leader = EINA_FALSE; */
/* sizes[idx].element_depth = 0; */
/* sizes[idx].size = pd->last_base; */
/* idx++; */
/* } */
/* fprintf(stderr, "read with no fetch\n"); */
/* } */
/* else */
{
while (idx < limit)
{
unsigned int search_index = conf.range.start_id + idx;
requests = _cache_size_fetch(requests, &request, pd,
search_index, &sizes[idx], item_base);
idx++;
}
// Done, but flush request first
if (request) requests = eina_list_append(requests, request);
requests = _batch_request_flush(requests, data, pd);
}
// Get the amount of filled item
result.filled_items = limit;
return result;
}
static Efl_Ui_Position_Manager_Object_Batch_Result
_batch_entity_cb(void *data, Efl_Ui_Position_Manager_Request_Range range, Eina_Rw_Slice memory)
{
MY_DATA_GET(data, pd);
Efl_Ui_Position_Manager_Object_Batch_Entity *entities;
Efl_Ui_Collection_Request *request = NULL;
Efl_Ui_Position_Manager_Object_Batch_Result result = {0};
Eina_List *requests = NULL;
#ifdef VIEWPORT_ENABLE
Efl_Model *parent;
#endif
unsigned int limit;
unsigned int idx = 0;
//parent = pd->model;
entities = memory.mem;
//count = efl_model_children_count_get(parent);
limit = range.end_id - range.start_id;
// Look in the temporary cache now for the beginning of the buffer
#ifdef VIEWPORT_ENABLE
if (pd->viewport[0] && ((unsigned int)(range.start_id + idx) < pd->viewport[0]->offset))
{
while (idx < limit && (unsigned int)(range.start_id + idx) < pd->viewport[0]->offset)
{
unsigned int search_index = range.start_id + idx;
requests = _cache_entity_fetch(requests, &request, pd,
search_index, &entities[idx]);
idx++;
}
}
// Then look in our buffer view if the needed information can be found there
for (i = 0; i < 3; ++i)
{
if (!pd->viewport[i]) continue;
while (idx < limit &&
(pd->viewport[i]->offset <= range.start_id + idx) &&
(range.start_id + idx < (pd->viewport[i]->offset + pd->viewport[i]->count)))
{
unsigned int offset = range.start_id + idx - pd->viewport[i]->offset;
Efl_Gfx_Entity *entity = pd->viewport[i]->items[offset].entity;
if (!entity)
{
// No data, add to the requests
requests = _request_add(requests, &request, range.start_id + idx, EINA_TRUE);
entities[idx].entity = NULL;
entities[idx].depth_leader = EINA_FALSE;
entities[idx].element_depth = 0;
}
else
{
entities[idx].entity = entity;
entities[idx].depth_leader = EINA_FALSE;
entities[idx].element_depth = 0;
}
idx++;
}
}
#endif
// Look in the temporary cache now for the end of the buffer
while (idx < limit)
{
unsigned int search_index = range.start_id + idx;
requests = _cache_entity_fetch(requests, &request, pd,
search_index, &entities[idx]);
idx++;
}
// Done, but flush request first
if (request)
{
requests = eina_list_append(requests, request);
}
requests = _batch_request_flush(requests, data, pd);
// Get the amount of filled item
result.filled_items = limit;
return result;
}
#if 0
static void
_batch_free_cb(void *data)
{
efl_unref(data);
}
#endif
static void
flush_min_size(Eo *obj, Efl_Ui_Collection_View_Data *pd)
{
Eina_Size2D tmp = pd->content_min_size;
if (!pd->match_content.w)
tmp.w = -1;
if (!pd->match_content.h)
tmp.h = -1;
efl_gfx_hint_size_restricted_min_set(obj, tmp);
}
static void
_manager_content_size_changed_cb(void *data, const Efl_Event *ev)
{
Eina_Size2D *size = ev->info;
MY_DATA_GET(data, pd);
efl_gfx_entity_size_set(pd->sizer, *size);
}
static void
_manager_content_min_size_changed_cb(void *data, const Efl_Event *ev)
{
Eina_Size2D *size = ev->info;
MY_DATA_GET(data, pd);
pd->content_min_size = *size;
flush_min_size(data, pd);
}
#ifdef VIEWPORT_ENABLE
static Eina_List *
_viewport_walk_fill(Eina_List *requests,
Efl_Ui_Collection_View *obj,
Efl_Ui_Collection_View_Data *pd,
Efl_Ui_Collection_Viewport *viewport)
{
Efl_Ui_Collection_Request *current = NULL;
unsigned int j;
for (j = 0; j < viewport->count; j++)
{
Efl_Ui_Collection_Item_Lookup *lookup;
unsigned int index = viewport->offset + j;
if (viewport->items[j].model) goto check_entity;
lookup = (void*) eina_rbtree_inline_lookup(pd->cache, &index,
sizeof (index), _cache_tree_lookup,
NULL);
if (lookup)
{
efl_replace(&viewport->items[j].model, lookup->item.model);
efl_replace(&viewport->items[j].entity, lookup->item.entity);
efl_replace(&lookup->item.entity, NULL); // Necessary to avoid premature release
pd->cache = eina_rbtree_inline_remove(pd->cache, EINA_RBTREE_GET(lookup),
_cache_tree_cmp, NULL);
_cache_item_free(EINA_RBTREE_GET(lookup), obj);
}
check_entity:
if (viewport->items[j].entity) continue ;
requests = _request_add(requests, &current, index, EINA_TRUE);
}
// We do break request per viewport, just in case we generate to big batch at once
if (current) requests = eina_list_append(requests, current);
return requests;
}
#endif
// An RbTree has the nice property of sorting content. The smaller than the root being in
// son[1] and the greater than the root in son[0]. Using this we can efficiently walk the
// tree once to take note of all the item that need cleaning.
static void
_mark_lesser(Efl_Ui_Collection_Item_Lookup *root, Eina_Array *mark, const unsigned int lower)
{
if (!root) return ;
if (root->index < lower)
{
eina_array_push(mark, root);
_mark_lesser((void*) EINA_RBTREE_GET(root)->son[1], mark, lower);
}
else
{
_mark_lesser((void*) EINA_RBTREE_GET(root)->son[0], mark, lower);
_mark_lesser((void*) EINA_RBTREE_GET(root)->son[1], mark, lower);
}
}
static void
_mark_ge(Efl_Ui_Collection_Item_Lookup *root, Eina_Array *mark, const unsigned int upper)
{
if (!root) return ;
if (root->index >= upper)
{
eina_array_push(mark, root);
_mark_ge((void*) EINA_RBTREE_GET(root)->son[0], mark, upper);
_mark_ge((void*) EINA_RBTREE_GET(root)->son[1], mark, upper);
}
else
{
_mark_ge((void*) EINA_RBTREE_GET(root)->son[0], mark, upper);
}
}
// we walk the tree twice, once for everything below the limit and once for everything above
// then we do free each item individually.
static void
_idle_cb(void *data, const Efl_Event *event EINA_UNUSED)
{
Efl_Ui_Collection_Item_Lookup *lookup;
Eina_Array mark;
Eina_Array scheduled_release;
MY_DATA_GET(data, pd);
const unsigned int length = pd->current_range.end_id - pd->current_range.start_id;
const unsigned int lower_end = MAX((long)pd->current_range.start_id - (long)length/2, 0);
const unsigned int upper_end = pd->current_range.end_id + length/2;
Eina_Array_Iterator iterator;
unsigned int i;
eina_array_step_set(&mark, sizeof (Eina_Array), 16);
eina_array_step_set(&scheduled_release, sizeof (Eina_Array), 16);
_mark_lesser((void*) pd->cache, &mark, lower_end);
_mark_ge((void*) pd->cache, &mark, upper_end);
EINA_ARRAY_ITER_NEXT(&mark, i, lookup, iterator)
{
pd->cache = (void*) eina_rbtree_inline_remove(pd->cache,
EINA_RBTREE_GET(lookup),
_cache_tree_cmp, NULL);
_item_cleanup(data, pd->factory, &lookup->item, &scheduled_release);
free(lookup);
}
eina_array_flush(&mark);
efl_ui_factory_release(pd->factory, eina_array_iterator_new(&scheduled_release));
eina_array_flush(&scheduled_release);
efl_event_callback_del(efl_main_loop_get(), EFL_LOOP_EVENT_IDLE, _idle_cb, data);
}
#ifndef VIEWPORT_ENABLE
static void
_manager_content_visible_range_changed_cb(void *data, const Efl_Event *ev)
{
Efl_Ui_Position_Manager_Range_Update *event = ev->info;
unsigned int count;
unsigned int lower_end;
unsigned int upper_end;
long length;
Efl_Ui_Collection_Request *request = NULL;
Eina_List *requests = NULL;
unsigned int idx;
MY_DATA_GET(data, pd);
pd->current_range.start_id = event->start_id;
pd->current_range.end_id = event->end_id;
count = efl_model_children_count_get(efl_ui_view_model_get(data));
length = pd->current_range.end_id - pd->current_range.start_id;
lower_end = MAX((long)pd->current_range.start_id - (length / 2), 0);
upper_end = MIN(pd->current_range.end_id + (length / 2), count);
idx = lower_end;
while (idx < upper_end)
{
unsigned int search_index = idx;
requests = _cache_entity_fetch(requests, &request, pd,
search_index, NULL);
idx++;
}
// Done, but flush request first
if (request) requests = eina_list_append(requests, request);
requests = _batch_request_flush(requests, data, pd);
}
#endif
#ifdef VIEWPORT_ENABLE
static void
_manager_content_visible_range_changed_cb(void *data, const Efl_Event *ev)
{
Efl_Ui_Position_Manager_Range_Update *event = ev->info;
MY_DATA_GET(data, pd);
Eina_List *requests = NULL;
long baseid;
unsigned int delta, marginup, margindown;
unsigned int upperlimit_offset, lowerlimit_offset;
unsigned int i;
pd->start_id = event->start_id;
pd->end_id = event->end_id;
delta = pd->end_id - pd->start_id;
// First time setting up the viewport, so trigger request as we see fit
if (!pd->viewport[0])
{
baseid = pd->start_id - delta;
for (i = 0; i < 3; i++)
{
pd->viewport[i] = calloc(1, sizeof (Efl_Ui_Collection_Viewport));
if (!pd->viewport[i]) continue;
pd->viewport[i]->offset = MAX(baseid + delta * i, 0);
pd->viewport[i]->count = delta;
pd->viewport[i]->items = calloc(delta, sizeof (Efl_Ui_Collection_Item));
if (!pd->viewport[i]->items) continue ;
requests = _viewport_walk_fill(requests, data, pd, pd->viewport[i]);
}
goto flush_requests;
}
// Compute limit offset
upperlimit_offset = delta * 3 + pd->viewport[0]->offset;
lowerlimit_offset = 0;
// Adjust the viewport for size or to much offset change in two step
// Trying to resize first if there size is in bigger/smaller than 25% of the original size
margindown = delta * 75 / 100;
marginup = delta * 125 / 100;
if (margindown < pd->viewport[0]->count &&
pd->viewport[0]->count < marginup)
{
// Trying to do the resize in an optimized way is complex, let's do it simple
Efl_Ui_Collection_Item *items[3];
unsigned int j = 0, t = 1;
for (i = 0; i < 3; i++)
{
unsigned int m;
items[i] = calloc(delta, sizeof (Efl_Ui_Collection_Item));
if (!items[i]) continue;
for (m = 0; m < delta && t < 3; m++)
{
items[i][m] = pd->viewport[t]->items[j];
j++;
if (j < pd->viewport[t]->count) continue;
j = 0;
t++;
if (t == 3) break;
}
// Preserve last updated index to later build a request
if (t == 3)
{
upperlimit_offset = pd->viewport[0]->offset + i * delta + m;
t = 4; // So that we never come back here again
}
}
// For now destroy leftover object, could be cached
for (i = t; i < 3; i++)
{
for (; j < pd->viewport[i]->count; j++)
{
_item_cleanup(pd->factory, &pd->viewport[i]->items[j]);
}
j = 0;
}
// And now define viewport back
for (i = 0; i < 3; i++)
{
free(pd->viewport[i]->items);
pd->viewport[i]->items = items[i];
pd->viewport[i]->count = delta;
pd->viewport[i]->offset = pd->viewport[0]->offset + delta * i;
}
}
// We decided that resizing was unecessary
delta = pd->viewport[0]->count;
// Try to keep the visual viewport in between half of the first and last viewport
// start_id is in the first half of the first viewport, assume upward move
// start_id + delta is in the second half of the last viewport, assume upward move
if (pd->viewport[0]->offset + delta / 2 < pd->start_id ||
pd->start_id + delta > pd->viewport[2]->offset + delta / 2)
{
// We could optimize this to actually just move viewport around in most cases
Efl_Ui_Collection_Item *items[3];
unsigned int j = 0, t = 0;
unsigned int target, current;
// Case where are at the top
if (pd->start_id < delta && pd->viewport[0]->offset == 0) goto build_request;
// Trying to adjust the offset to maintain it in the center viewport +/- delta/2
baseid = (pd->start_id < delta) ? 0 : pd->start_id - delta;
// Lookup for starting point
lowerlimit_offset = pd->viewport[0]->offset;
target = baseid;
// cleanup before target
for (current = pd->viewport[t]->offset; current < target; current++)
{
_item_cleanup(pd->factory, &pd->viewport[t]->items[j]);
j++;
if (j < pd->viewport[t]->count) continue;
j = 0;
t++;
if (t == 3) break;
}
// Allocation and copy
for (i = 0; i < 3; i++)
{
unsigned int m;
items[i] = calloc(delta, sizeof (Efl_Ui_Collection_Item));
if (!items[i]) continue;
for (m = 0; m < delta && t < 3; m++, target++)
{
if (target < pd->viewport[t]->offset) continue ;
items[i][m] = pd->viewport[t]->items[j];
j++;
if (j < pd->viewport[t]->count) continue;
j = 0;
t++;
if (t == 3) break;
}
// Preserve last updated index to later build a request
if (t == 3)
{
if (upperlimit_offset > pd->viewport[0]->offset + i * delta + m)
{
upperlimit_offset = pd->viewport[0]->offset + i * delta + m;
}
t = 4; // So that we never come back here again
}
}
// For now destroy leftover object, could be cached
for (i = t; i < 3; i++)
{
for (; j < pd->viewport[i]->count; j++)
{
_item_cleanup(pd->factory, &pd->viewport[i]->items[j]);
}
j = 0;
}
// And now define viewport back
for (i = 0; i < 3; i++)
{
free(pd->viewport[i]->items);
pd->viewport[i]->items = items[i];
pd->viewport[i]->offset = baseid + delta * i;
}
}
build_request:
// Check if the first viewport has all the lower part of it filled with objects
if (pd->viewport[0]->offset < lowerlimit_offset)
{
Efl_Ui_Collection_Request *request;
request = calloc(1, sizeof (Efl_Ui_Collection_Request));
if (request) return ;
request->offset = lowerlimit_offset;
// This length work over multiple viewport as they are contiguous
request->length = lowerlimit_offset - pd->viewport[0]->offset;
request->need_size = EINA_TRUE;
request->need_entity = EINA_TRUE;
requests = eina_list_append(requests, request);
}
// Check if the last viewport has all the upper part of it filler with objects
if (pd->viewport[2]->offset + pd->viewport[2]->count > upperlimit_offset)
{
Efl_Ui_Collection_Request *request;
request = calloc(1, sizeof (Efl_Ui_Collection_Request));
if (request) return ;
request->offset = upperlimit_offset;
// This length work over multiple viewport as they are contiguous
request->length = pd->viewport[2]->offset + pd->viewport[2]->count - upperlimit_offset;
request->need_size = EINA_TRUE;
request->need_entity = EINA_TRUE;
requests = eina_list_append(requests, request);
}
flush_requests:
requests = _batch_request_flush(requests, data, pd);
}
#endif
EFL_CALLBACKS_ARRAY_DEFINE(manager_cbs,
{ EFL_UI_POSITION_MANAGER_ENTITY_EVENT_CONTENT_SIZE_CHANGED, _manager_content_size_changed_cb },
{ EFL_UI_POSITION_MANAGER_ENTITY_EVENT_CONTENT_MIN_SIZE_CHANGED, _manager_content_min_size_changed_cb },
{ EFL_UI_POSITION_MANAGER_ENTITY_EVENT_VISIBLE_RANGE_CHANGED, _manager_content_visible_range_changed_cb }
)
static void
_item_scroll_internal(Eo *obj EINA_UNUSED,
Efl_Ui_Collection_View_Data *pd,
unsigned int index,
double align EINA_UNUSED,
Eina_Bool anim)
{
Eina_Rect ipos, view;
Eina_Position2D vpos;
if (!pd->scroller) return;
ipos = efl_ui_position_manager_entity_position_single_item(pd->manager, index);
view = efl_ui_scrollable_viewport_geometry_get(pd->scroller);
vpos = efl_ui_scrollable_content_pos_get(pd->scroller);
ipos.x = ipos.x + vpos.x - view.x;
ipos.y = ipos.y + vpos.y - view.y;
//FIXME scrollable needs some sort of align, the docs do not even garantee to completely move in the element
efl_ui_scrollable_scroll(pd->scroller, ipos, anim);
}
// Exported function
EOLIAN static void
_efl_ui_collection_view_factory_set(Eo *obj EINA_UNUSED, Efl_Ui_Collection_View_Data *pd,
Efl_Ui_Factory *factory)
{
if (pd->factory) efl_ui_property_bind(pd->factory, "selected", NULL);
efl_replace(&pd->factory, factory);
if (pd->factory) efl_ui_property_bind(pd->factory, "selected", "self.selected");
}
EOLIAN static Efl_Ui_Factory *
_efl_ui_collection_view_factory_get(const Eo *obj EINA_UNUSED, Efl_Ui_Collection_View_Data *pd)
{
return pd->factory;
}
static void
_unref_cb(void *data)
{
Eo *obj = data;
efl_unref(obj);
}
EOLIAN static void
_efl_ui_collection_view_position_manager_set(Eo *obj, Efl_Ui_Collection_View_Data *pd,
Efl_Ui_Position_Manager_Entity *manager)
{
Efl_Model *model;
unsigned int count;
if (manager)
EINA_SAFETY_ON_FALSE_RETURN(efl_isa(manager, EFL_UI_POSITION_MANAGER_ENTITY_INTERFACE));
if (pd->manager)
{
efl_event_callback_array_del(pd->manager, manager_cbs(), obj);
efl_del(pd->manager);
}
pd->manager = manager;
if (!pd->manager) return;
// Start watching change on model from here on
model = pd->model;
count = model ? efl_model_children_count_get(model) : 0;
efl_parent_set(pd->manager, obj);
efl_event_callback_array_add(pd->manager, manager_cbs(), obj);
switch(efl_ui_position_manager_entity_version(pd->manager, 1))
{
case 1:
efl_ui_position_manager_data_access_v1_data_access_set(pd->manager,
efl_provider_find(obj, EFL_UI_WIN_CLASS),
efl_ref(obj), _batch_entity_cb, _unref_cb,
efl_ref(obj), _batch_size_cb, _unref_cb,
count);
break;
}
if (efl_finalized_get(obj))
efl_ui_position_manager_entity_viewport_set(pd->manager, efl_ui_scrollable_viewport_geometry_get(obj));
efl_ui_layout_orientation_set(pd->manager, pd->direction);
}
EOLIAN static Efl_Ui_Position_Manager_Entity *
_efl_ui_collection_view_position_manager_get(const Eo *obj EINA_UNUSED,
Efl_Ui_Collection_View_Data *pd)
{
return pd->manager;
}
static void
_efl_model_count_changed(void *data, const Efl_Event *event EINA_UNUSED)
{
Efl_Ui_Collection_Request *request = NULL;
Eina_List *requests = NULL;
MY_DATA_GET(data, pd);
unsigned int index;
unsigned int count = 0;
count = efl_model_children_count_get(pd->model);
if (pd->focus.last)
{
index = _lookup_entity_index(pd->focus.last, NULL);
if (index + 1 == count)
return ;
}
// The last item is not the last item anymore
requests = _request_add(requests, &request, count, EINA_TRUE);
requests = _batch_request_flush(requests, data, pd);
// We are not triggering efl_ui_position_manager_entity_data_access_set as it is can
// only be slow, we rely on child added/removed instead (If we were to not rely on
// child added/removed we could maybe use count changed)
}
static void
_efl_model_properties_changed(void *data EINA_UNUSED, const Efl_Event *event EINA_UNUSED)
{
// We could here watch if the global base size item change and notify of a global change
// But I can not find a proper way to do it for the object that are not visible, which
// is kind of the point...
}
static void
_cache_cleanup_above(Efl_Ui_Collection_View *obj, Efl_Ui_Collection_View_Data *pd, unsigned int index)
{
Efl_Ui_Collection_Item_Lookup *lookup;
Eina_Array scheduled_release;
Eina_Array mark;
Eina_Array_Iterator iterator;
unsigned int i;
eina_array_step_set(&mark, sizeof (Eina_Array), 16);
eina_array_step_set(&scheduled_release, sizeof (Eina_Array), 16);
_mark_ge((void*) pd->cache, &mark, index);
EINA_ARRAY_ITER_NEXT(&mark, i, lookup, iterator)
{
pd->cache = (void*) eina_rbtree_inline_remove(pd->cache,
EINA_RBTREE_GET(lookup),
_cache_tree_cmp, NULL);
_item_cleanup(obj, pd->factory, &lookup->item, &scheduled_release);
free(lookup);
}
eina_array_flush(&mark);
efl_ui_factory_release(pd->factory, eina_array_iterator_new(&scheduled_release));
eina_array_flush(&scheduled_release);
}
static void
_efl_model_child_added(void *data, const Efl_Event *event)
{
// At the moment model only append child, but let's try to handle it theorically correct
Efl_Model_Children_Event *ev = event->info;
MY_DATA_GET(data, pd);
#ifdef VIEWPORT_ENABLE
Eina_List *requests = NULL;
unsigned int i;
#endif
_cache_cleanup_above(data, pd, ev->index);
// Check if we really have something to do
#ifdef VIEWPORT_ENABLE
if (!pd->viewport[0]) goto notify_manager;
// Insert the child in the viewport if necessary
for (i = 0; i < 3; i++)
{
Efl_Ui_Collection_Request *request;
unsigned int o;
unsigned int j;
if (ev->index < pd->viewport[i]->offset)
{
pd->viewport[i]->offset++;
continue;
}
if (pd->viewport[i]->offset + pd->viewport[i]->count < ev->index)
{
continue;
}
for (j = 2; j > i; j--)
{
_item_cleanup(pd->factory, &pd->viewport[j]->items[pd->viewport[j]->count - 1]);
memmove(&pd->viewport[j]->items[1],
&pd->viewport[j]->items[0],
(pd->viewport[j]->count - 1) * sizeof (Efl_Ui_Collection_Item));
pd->viewport[j]->items[0] = pd->viewport[j - 1]->items[pd->viewport[j - 1]->count - 1];
pd->viewport[j - 1]->items[pd->viewport[j - 1]->count - 1].entity = NULL;
pd->viewport[j - 1]->items[pd->viewport[j - 1]->count - 1].model = NULL;
}
o = ev->index - pd->viewport[i]->offset;
memmove(&pd->viewport[j]->items[o],
&pd->viewport[j]->items[o + 1],
(pd->viewport[j]->count - 1 - o) * sizeof (Efl_Ui_Collection_Item));
pd->viewport[j]->items[o].entity = NULL;
pd->viewport[j]->items[o].model = efl_ref(ev->child);
request = calloc(1, sizeof (Efl_Ui_Collection_Request));
if (!request) break;
request->offset = ev->index;
request->length = 1;
request->need_size = EINA_TRUE;
request->need_entity = EINA_TRUE;
requests = eina_list_append(requests, request);
requests = _batch_request_flush(requests, data, pd);
break;
}
notify_manager:
#endif
efl_ui_position_manager_entity_item_added(pd->manager, ev->index, NULL);
}
static void
_efl_model_child_removed(void *data, const Efl_Event *event)
{
Efl_Model_Children_Event *ev = event->info;
MY_DATA_GET(data, pd);
Eina_List *requests = NULL;
#ifdef VIEWPORT_ENABLE
unsigned int i;
#endif
unsigned int upper_end;
long length;
unsigned int count;
unsigned int request_length;
// FIXME: later optimization, instead of reloading everyone, we could actually track index and self
// update would be more efficient, but it is also more tricky
_cache_cleanup_above(data, pd, ev->index);
count = efl_model_children_count_get(event->object);
length = pd->current_range.end_id - pd->current_range.start_id;
upper_end = MIN(pd->current_range.end_id + (length / 2), count);
// Check if we really have something to do
#ifdef VIEWPORT_ENABLE
if (!pd->viewport[0]) goto notify_manager;
// Insert the child in the viewport if necessary
for (i = 0; i < 3; i++)
{
Efl_Ui_Collection_Request *request;
unsigned int o;
if (ev->index < pd->viewport[i]->offset)
{
pd->viewport[i]->offset--;
continue;
}
if (pd->viewport[i]->offset + pd->viewport[i]->count < ev->index)
{
continue;
}
o = ev->index - pd->viewport[i]->offset;
_item_cleanup(pd->factory, &pd->viewport[i]->items[o]);
for (; i < 3; i++)
{
memmove(&pd->viewport[i]->items[o],
&pd->viewport[i]->items[o + 1],
(pd->viewport[i]->count - 1 - o) * sizeof (Efl_Ui_Collection_Item));
if (i + 1 < 3)
{
pd->viewport[i]->items[pd->viewport[i]->count - 1] = pd->viewport[i + 1]->items[0];
}
else
{
pd->viewport[i]->items[pd->viewport[i]->count - 1].entity = NULL;
pd->viewport[i]->items[pd->viewport[i]->count - 1].model = NULL;
}
o = 0;
}
request = calloc(1, sizeof (Efl_Ui_Collection_Request));
if (!request) break;
request->offset = pd->viewport[2]->offset + pd->viewport[i]->count - 1;
request->length = 1;
request->need_size = EINA_TRUE;
request->need_entity = EINA_TRUE;
requests = eina_list_append(requests, request);
requests = _batch_request_flush(requests, data, pd);
break;
}
notify_manager:
#endif
request_length = upper_end - ev->index;
if (request_length > 0)
{
Efl_Ui_Collection_Request *request = NULL;
requests = _request_add(requests, &request, ev->index, EINA_TRUE);
request->length = request_length;
requests = eina_list_append(requests, request);
requests = _batch_request_flush(requests, data, pd);
}
efl_ui_position_manager_entity_item_removed(pd->manager, ev->index, NULL);
}
EFL_CALLBACKS_ARRAY_DEFINE(model_cbs,
{ EFL_MODEL_EVENT_CHILDREN_COUNT_CHANGED, _efl_model_count_changed },
{ EFL_MODEL_EVENT_PROPERTIES_CHANGED, _efl_model_properties_changed },
{ EFL_MODEL_EVENT_CHILD_ADDED, _efl_model_child_added },
{ EFL_MODEL_EVENT_CHILD_REMOVED, _efl_model_child_removed })
static void
_efl_ui_collection_view_model_changed(void *data, const Efl_Event *event)
{
Efl_Model_Changed_Event *ev = event->info;
Eina_List *requests = NULL;
MY_DATA_GET(data, pd);
Eina_Iterator *it;
const char *property;
Efl_Model *model = NULL;
unsigned int count;
Efl_Model *mselect = NULL;
Eina_Bool selection = EINA_FALSE, sizing = EINA_FALSE;
// Cleanup all object, pending request to prepare refetching everything
_all_cleanup(data, pd);
if (pd->model) efl_event_callback_array_del(pd->model, model_cbs(), data);
if (pd->multi_selectable_async_model)
{
efl_event_callback_forwarder_del(pd->multi_selectable_async_model,
EFL_UI_SELECTABLE_EVENT_SELECTION_CHANGED,
data);
efl_composite_detach(data, pd->multi_selectable_async_model);
}
if (!ev->current)
{
efl_replace(&pd->model, NULL);
efl_replace(&pd->multi_selectable_async_model, NULL);
return ;
}
it = efl_model_properties_get(ev->current);
EINA_ITERATOR_FOREACH(it, property)
{
// Check if the model provide selection
if (eina_streq(property, "child.selected"))
selection = EINA_TRUE;
// Check if the model provide sizing logic
else if (eina_streq(property, _efl_model_property_itemw) ||
eina_streq(property, _efl_model_property_itemh))
sizing = EINA_TRUE;
}
eina_iterator_free(it);
if (selection)
{
// Search the composition of model for the one providing MULTI_SELECTABLE_ASYNC
mselect = ev->current;
while (mselect &&
!efl_isa(mselect, EFL_UI_MULTI_SELECTABLE_INDEX_RANGE_INTERFACE) &&
efl_isa(mselect, EFL_COMPOSITE_MODEL_CLASS))
mselect = efl_ui_view_model_get(mselect);
if (!efl_isa(mselect, EFL_UI_MULTI_SELECTABLE_INDEX_RANGE_INTERFACE))
{
mselect = NULL;
selection = EINA_FALSE;
}
}
// Try to build the minimal chain of necessary model for collection view
model = ev->current;
// Build and connect the selection model properly
if (!mselect)
{
mselect = model = efl_add_ref(EFL_UI_SELECT_MODEL_CLASS, data,
efl_ui_view_model_set(efl_added, model),
efl_loop_model_volatile_make(efl_added));
}
efl_replace(&pd->multi_selectable_async_model, mselect);
efl_composite_attach(data, pd->multi_selectable_async_model);
efl_event_callback_forwarder_add(pd->multi_selectable_async_model,
EFL_UI_SELECTABLE_EVENT_SELECTION_CHANGED,
data);
if (!sizing) model = efl_add_ref(EFL_UI_HOMOGENEOUS_MODEL_CLASS, data,
efl_ui_view_model_set(efl_added, model),
efl_loop_model_volatile_make(efl_added));
efl_replace(&pd->model, model);
efl_event_callback_array_add(pd->model, model_cbs(), data);
if (mselect) efl_unref(mselect);
if (!sizing) efl_unref(model);
count = efl_model_children_count_get(model);
#ifdef VIEWPORT_ENABLE
for (i = 0; i < 3; i++)
{
if (!pd->viewport[i]) continue ;
if (pd->viewport[i]->count == 0) continue ;
request = calloc(1, sizeof (Efl_Ui_Collection_Request));
if (!request) continue ;
request->offset = pd->viewport[i]->offset;
request->length = pd->viewport[i]->count;
request->need_size = EINA_TRUE;
request->need_entity = EINA_TRUE;
requests = eina_list_append(requests, request);
}
#endif
// Fetch last item if necessary for later focus
if (efl_model_children_count_get(model))
{
Efl_Ui_Collection_Request *request = NULL;
uint64_t index = efl_model_children_count_get(model) - 1;
requests = _request_add(requests, &request, index, EINA_TRUE);
}
// Flush all pending request
requests = _batch_request_flush(requests, data, pd);
switch (efl_ui_position_manager_entity_version(pd->manager, 1))
{
case 1:
efl_ui_position_manager_data_access_v1_data_access_set(pd->manager,
efl_provider_find(data, EFL_UI_WIN_CLASS),
efl_ref(data), _batch_entity_cb, _unref_cb,
efl_ref(data), _batch_size_cb, _unref_cb,
count);
break;
}
efl_ui_position_manager_entity_item_size_changed(pd->manager, 0, count - 1);
}
static void
_pan_viewport_changed_cb(void *data, const Efl_Event *ev EINA_UNUSED)
{
MY_DATA_GET(data, pd);
Eina_Rect rect = efl_ui_scrollable_viewport_geometry_get(data);
efl_ui_position_manager_entity_viewport_set(pd->manager, rect);
}
static void
_pan_position_changed_cb(void *data, const Efl_Event *ev EINA_UNUSED)
{
MY_DATA_GET(data, pd);
Eina_Position2D pos = efl_ui_pan_position_get(pd->pan);
Eina_Position2D max = efl_ui_pan_position_max_get(pd->pan);
Eina_Vector2 rpos = {0.0, 0.0};
if (max.x > 0.0)
rpos.x = (double)pos.x/(double)max.x;
if (max.y > 0.0)
rpos.y = (double)pos.y/(double)max.y;
efl_ui_position_manager_entity_scroll_position_set(pd->manager, rpos.x, rpos.y);
}
EFL_CALLBACKS_ARRAY_DEFINE(pan_events_cb,
{EFL_UI_PAN_EVENT_PAN_CONTENT_POSITION_CHANGED, _pan_position_changed_cb},
{EFL_GFX_ENTITY_EVENT_SIZE_CHANGED, _pan_viewport_changed_cb},
{EFL_GFX_ENTITY_EVENT_POSITION_CHANGED, _pan_viewport_changed_cb},
)
EOLIAN static Efl_Object *
_efl_ui_collection_view_efl_object_constructor(Eo *obj, Efl_Ui_Collection_View_Data *pd)
{
pd->direction = EFL_UI_LAYOUT_ORIENTATION_VERTICAL;
obj = efl_constructor(efl_super(obj, EFL_UI_COLLECTION_VIEW_CLASS));
if (!elm_widget_theme_klass_get(obj))
elm_widget_theme_klass_set(obj, "collection");
efl_wref_add(efl_add(EFL_CANVAS_RECTANGLE_CLASS, evas_object_evas_get(obj)), &pd->sizer);
efl_gfx_color_set(pd->sizer, 0, 0, 0, 0);
efl_wref_add(efl_add(EFL_UI_PAN_CLASS, obj), &pd->pan);
efl_content_set(pd->pan, pd->sizer);
efl_event_callback_array_add(pd->pan, pan_events_cb(), obj);
efl_wref_add(efl_add(EFL_UI_SCROLL_MANAGER_CLASS, obj), &pd->scroller);
efl_composite_attach(obj, pd->scroller);
efl_ui_mirrored_set(pd->scroller, efl_ui_mirrored_get(obj));
efl_ui_scroll_manager_pan_set(pd->scroller, pd->pan);
efl_ui_scroll_connector_bind(obj, pd->scroller);
efl_event_callback_add(obj, EFL_UI_VIEW_EVENT_MODEL_CHANGED,
_efl_ui_collection_view_model_changed, obj);
return obj;
}
EOLIAN static void
_efl_ui_collection_view_efl_object_invalidate(Eo *obj,
Efl_Ui_Collection_View_Data *pd)
{
efl_ui_collection_view_position_manager_set(obj, NULL);
efl_event_callback_del(obj, EFL_UI_VIEW_EVENT_MODEL_CHANGED,
_efl_ui_collection_view_model_changed, obj);
_all_cleanup(obj, pd);
//pd pan is given to edje, which reparents it, which forces us to manually deleting it
if (pd->pan)
efl_del(pd->pan);
efl_invalidate(efl_super(obj, EFL_UI_COLLECTION_VIEW_CLASS));
}
EOLIAN static void
_efl_ui_collection_view_efl_ui_layout_orientable_orientation_set(Eo *obj EINA_UNUSED,
Efl_Ui_Collection_View_Data *pd,
Efl_Ui_Layout_Orientation dir)
{
if (pd->direction == dir) return;
pd->direction = dir;
if (pd->manager) efl_ui_layout_orientation_set(pd->manager, dir);
}
EOLIAN static Efl_Ui_Layout_Orientation
_efl_ui_collection_view_efl_ui_layout_orientable_orientation_get(const Eo *obj EINA_UNUSED,
Efl_Ui_Collection_View_Data *pd)
{
return pd->direction;
}
EOLIAN static Eina_Error
_efl_ui_collection_view_efl_ui_widget_theme_apply(Eo *obj, Efl_Ui_Collection_View_Data *pd)
{
Eina_Error res;
ELM_WIDGET_DATA_GET_OR_RETURN(obj, wd, EFL_UI_THEME_APPLY_ERROR_GENERIC);
res = efl_ui_widget_theme_apply(efl_super(obj, MY_CLASS));
if (res == EFL_UI_THEME_APPLY_ERROR_GENERIC) return res;
efl_ui_mirrored_set(pd->scroller, efl_ui_mirrored_get(obj));
efl_content_set(efl_part(wd->resize_obj, "efl.content"), pd-