forked from enlightenment/efl
256 lines
7.5 KiB
C
256 lines
7.5 KiB
C
#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <Eina.h>
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#include <Efl.h>
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#include <Ecore.h>
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#include "ecore_private.h"
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#include "efl_composite_model.eo.h"
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#define _CHILD_INDEX "child.index"
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typedef struct _Efl_Composite_Model_Data Efl_Composite_Model_Data;
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struct _Efl_Composite_Model_Data
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{
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Efl_Model *source;
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unsigned int index;
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Eina_Bool need_index : 1;
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Eina_Bool set_index : 1;
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};
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static void
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_efl_composite_model_efl_object_destructor(Eo *obj, Efl_Composite_Model_Data *pd)
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{
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if (pd->source)
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{
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efl_event_callback_forwarder_del(pd->source, EFL_MODEL_EVENT_CHILD_ADDED, obj);
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efl_event_callback_forwarder_del(pd->source, EFL_MODEL_EVENT_CHILD_REMOVED, obj);
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efl_event_callback_forwarder_del(pd->source, EFL_MODEL_EVENT_CHILDREN_COUNT_CHANGED, obj);
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efl_event_callback_forwarder_del(pd->source, EFL_MODEL_EVENT_PROPERTIES_CHANGED, obj);
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efl_unref(pd->source);
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pd->source = NULL;
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}
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efl_destructor(efl_super(obj, EFL_COMPOSITE_MODEL_CLASS));
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}
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static Efl_Object *
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_efl_composite_model_efl_object_finalize(Eo *obj, Efl_Composite_Model_Data *pd)
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{
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if (pd->source == NULL)
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{
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ERR("Source of the composite model wasn't defined at construction time.");
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return NULL;
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}
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return obj;
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}
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static void
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_efl_composite_model_index_set(Eo *obj EINA_UNUSED, Efl_Composite_Model_Data *pd, unsigned int index)
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{
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if (pd->set_index || !pd->source)
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return ;
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pd->index = index;
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pd->set_index = EINA_TRUE;
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}
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static unsigned int
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_efl_composite_model_index_get(const Eo *obj, Efl_Composite_Model_Data *pd)
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{
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Eina_Value *fetch = NULL;
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unsigned int r = 0xFFFFFFFF;
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if (pd->set_index)
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return pd->index;
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if (pd->need_index)
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return 0xFFFFFFFF;
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fetch = efl_model_property_get(obj, _CHILD_INDEX);
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if (!eina_value_uint_convert(fetch, &r))
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return 0xFFFFFFFF;
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eina_value_free(fetch);
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return r;
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}
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static void
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_efl_composite_model_efl_ui_view_model_set(Eo *obj EINA_UNUSED, Efl_Composite_Model_Data *pd, Efl_Model *model)
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{
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Eina_Iterator *properties;
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const char *property;
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if (pd->source != NULL)
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{
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ERR("Source already set for composite model. It can only be set once.");
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return ;
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}
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pd->source = efl_ref(model);
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efl_event_callback_forwarder_priority_add(model, EFL_MODEL_EVENT_CHILD_ADDED, EFL_CALLBACK_PRIORITY_BEFORE, obj);
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efl_event_callback_forwarder_priority_add(model, EFL_MODEL_EVENT_CHILD_REMOVED, EFL_CALLBACK_PRIORITY_BEFORE, obj);
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efl_event_callback_forwarder_priority_add(model, EFL_MODEL_EVENT_CHILDREN_COUNT_CHANGED, EFL_CALLBACK_PRIORITY_BEFORE, obj);
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efl_event_callback_forwarder_priority_add(model, EFL_MODEL_EVENT_PROPERTIES_CHANGED, EFL_CALLBACK_PRIORITY_BEFORE, obj);
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pd->need_index = EINA_TRUE;
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properties = efl_model_properties_get(pd->source);
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EINA_ITERATOR_FOREACH(properties, property)
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{
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if (!strcmp(property, _CHILD_INDEX))
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{
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pd->need_index = EINA_FALSE;
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break;
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}
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}
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eina_iterator_free(properties);
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}
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static Efl_Model *
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_efl_composite_model_efl_ui_view_model_get(const Eo *obj EINA_UNUSED, Efl_Composite_Model_Data *pd)
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{
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return pd->source;
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}
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static Eina_Future *
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_efl_composite_model_efl_model_property_set(Eo *obj, Efl_Composite_Model_Data *pd,
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const char *property, Eina_Value *value)
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{
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if (pd->need_index && !strcmp(property, _CHILD_INDEX))
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{
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if (pd->set_index || !pd->source)
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return efl_loop_future_rejected(obj, EFL_MODEL_ERROR_READ_ONLY);
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if (!eina_value_uint_convert(value, &pd->index))
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return efl_loop_future_rejected(obj, EFL_MODEL_ERROR_UNKNOWN);
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pd->set_index = EINA_TRUE;
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return efl_loop_future_resolved(obj, eina_value_uint_init(pd->index));
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}
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return efl_model_property_set(pd->source, property, value);
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}
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static Eina_Value *
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_efl_composite_model_efl_model_property_get(const Eo *obj EINA_UNUSED, Efl_Composite_Model_Data *pd,
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const char *property)
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{
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if (pd->need_index && !strcmp(property, _CHILD_INDEX))
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{
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if (pd->set_index)
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return eina_value_uint_new(pd->index);
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return eina_value_error_new(EAGAIN);
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}
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return efl_model_property_get(pd->source, property);
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}
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static Eina_Iterator *
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_efl_composite_model_efl_model_properties_get(const Eo *obj EINA_UNUSED, Efl_Composite_Model_Data *pd)
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{
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if (pd->need_index)
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{
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static const char *composite_properties[] = {
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_CHILD_INDEX
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};
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return eina_multi_iterator_new(efl_model_properties_get(pd->source),
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EINA_C_ARRAY_ITERATOR_NEW(composite_properties));
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}
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return efl_model_properties_get(pd->source);
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}
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static unsigned int
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_efl_composite_model_efl_model_children_count_get(const Eo *obj EINA_UNUSED, Efl_Composite_Model_Data *pd)
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{
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return efl_model_children_count_get(pd->source);
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}
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typedef struct _Efl_Composite_Model_Slice_Request Efl_Composite_Model_Slice_Request;
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struct _Efl_Composite_Model_Slice_Request
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{
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const Efl_Class *self;
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Eo *parent;
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unsigned int start;
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};
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static Eina_Value
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_efl_composite_model_then(Eo *o EINA_UNUSED, void *data, const Eina_Value v)
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{
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Efl_Composite_Model_Slice_Request *req = data;
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unsigned int i, len;
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Eina_Value r = EINA_VALUE_EMPTY;
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Eo *target = NULL;
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eina_value_array_setup(&r, EINA_VALUE_TYPE_OBJECT, 4);
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EINA_VALUE_ARRAY_FOREACH(&v, len, i, target)
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{
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Eo *composite;
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// First set the Model to be used as a source so that we the newly object
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// can know if it needs to retain the information regarding its index.
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composite = efl_add(req->self, req->parent,
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efl_ui_view_model_set(efl_added, target),
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efl_composite_model_index_set(efl_added, req->start + i));
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eina_value_array_append(&r, composite);
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}
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return r;
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}
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static void
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_efl_composite_model_clean(Eo *o EINA_UNUSED, void *data, const Eina_Future *dead_future EINA_UNUSED)
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{
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Efl_Composite_Model_Slice_Request *req = data;
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efl_unref(req->parent);
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free(data);
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}
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static Eina_Future *
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_efl_composite_model_efl_model_children_slice_get(Eo *obj,
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Efl_Composite_Model_Data *pd,
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unsigned int start,
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unsigned int count)
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{
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Efl_Composite_Model_Slice_Request *req;
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Eina_Future *f;
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f = efl_model_children_slice_get(pd->source, start, count);
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if (!f) return NULL;
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req = malloc(sizeof (Efl_Composite_Model_Slice_Request));
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if (!req) return efl_loop_future_rejected(obj, ENOMEM);
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req->self = efl_class_get(obj);
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req->parent = efl_ref(obj);
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req->start = start;
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return efl_future_then(obj, f, .success_type = EINA_VALUE_TYPE_ARRAY,
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.success = _efl_composite_model_then,
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.free = _efl_composite_model_clean,
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.data = req);
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}
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static Efl_Object *
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_efl_composite_model_efl_model_child_add(Eo *obj EINA_UNUSED,
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Efl_Composite_Model_Data *pd)
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{
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return efl_model_child_add(pd->source);
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}
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static void
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_efl_composite_model_efl_model_child_del(Eo *obj EINA_UNUSED,
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Efl_Composite_Model_Data *pd,
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Efl_Object *child)
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{
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efl_model_child_del(pd->source, child);
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}
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#include "efl_composite_model.eo.c"
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