715 lines
19 KiB
C
715 lines
19 KiB
C
#include "edje_private.h"
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static Eina_Hash *type_registry = NULL;
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static int init_count = 0;
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/**
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* @brief Converts type identifier to string nicer representation.
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*
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* This may be used to debug or other informational purposes.
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*
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* @param type the identifier to convert.
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* @return the string with the string representation, or @c "(unknown)".
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*/
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EAPI const char *
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edje_external_param_type_str(Edje_External_Param_Type type)
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{
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switch (type)
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{
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case EDJE_EXTERNAL_PARAM_TYPE_INT:
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return "INT";
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case EDJE_EXTERNAL_PARAM_TYPE_DOUBLE:
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return "DOUBLE";
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case EDJE_EXTERNAL_PARAM_TYPE_STRING:
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return "STRING";
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case EDJE_EXTERNAL_PARAM_TYPE_BOOL:
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return "BOOL";
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case EDJE_EXTERNAL_PARAM_TYPE_CHOICE:
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return "CHOICE";
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default:
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return "(unknown)";
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}
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}
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/**
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* @brief Get the object created by this external part.
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*
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* Parts of type external creates the part object using information
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* provided by external plugins. It's somehow like "swallow"
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* (edje_object_part_swallow()), but it's all set automatically.
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*
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* This function returns the part created by such external plugins and
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* being currently managed by this Edje.
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*
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* @note Almost all swallow rules apply: you should not move, resize,
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* hide, show, set the color or clipper of such part. It's a bit
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* more restrictive as one must @b never delete this object!
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*
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* @param obj A valid Evas_Object handle
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* @param part The part name
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* @return The externally created object, or NULL if there is none or
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* part is not an external.
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*/
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EAPI Evas_Object *
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edje_object_part_external_object_get(const Evas_Object *obj, const char *part)
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{
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Edje *ed;
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Edje_Real_Part *rp;
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ed = _edje_fetch(obj);
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if ((!ed) || (!part)) return NULL;
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/* Need to recalc before providing the object. */
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_edje_recalc_do(ed);
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rp = _edje_real_part_recursive_get(ed, (char *)part);
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if (!rp)
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{
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ERR("no part '%s'", part);
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return NULL;
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}
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if (rp->part->type != EDJE_PART_TYPE_EXTERNAL)
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{
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ERR("cannot get external object of a part '%s' that is not EXTERNAL",
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rp->part->name);
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return NULL;
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}
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return rp->swallowed_object;
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}
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/**
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* @brief Set the parameter for the external part.
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*
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* Parts of type external may carry extra properties that have
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* meanings defined by the external plugin. For instance, it may be a
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* string that defines a button label and setting this property will
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* change that label on the fly.
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*
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* @note external parts have parameters set when they change
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* states. Those parameters will never be changed by this
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* function. The interpretation of how state_set parameters and
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* param_set will interact is up to the external plugin.
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*
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* @note this function will not check if parameter value is valid
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* using #Edje_External_Param_Info minimum, maximum, valid
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* choices and others. However these should be checked by the
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* underlying implementation provided by the external
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* plugin. This is done for performance reasons.
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*
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* @param obj A valid Evas_Object handle
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* @param part The part name
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* @param param the parameter details, including its name, type and
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* actual value. This pointer should be valid, and the
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* parameter must exist in
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* #Edje_External_Type::parameters_info, with the exact type,
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* otherwise the operation will fail and @c EINA_FALSE will be
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* returned.
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*
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* @return @c EINA_TRUE if everything went fine, @c EINA_FALSE on errors.
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*/
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EAPI Eina_Bool
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edje_object_part_external_param_set(Evas_Object *obj, const char *part, const Edje_External_Param *param)
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{
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Edje *ed;
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Edje_Real_Part *rp;
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if ((!param) || (!param->name)) return EINA_FALSE;
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ed = _edje_fetch(obj);
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if ((!ed) || (!part)) return EINA_FALSE;
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rp = _edje_real_part_recursive_get(ed, (char *)part);
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if (!rp)
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{
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ERR("no part '%s'", part);
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return EINA_FALSE;
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}
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return _edje_external_param_set(rp->swallowed_object, param);
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}
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/**
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* @brief Get the parameter for the external part.
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*
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* Parts of type external may carry extra properties that have
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* meanings defined by the external plugin. For instance, it may be a
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* string that defines a button label. This property can be modifed by
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* state parameters, by explicit calls to
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* edje_object_part_external_param_set() or getting the actual object
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* with edje_object_part_external_object_get() and calling native
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* functions.
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*
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* This function asks the external plugin what is the current value,
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* independent on how it was set.
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*
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* @param obj A valid Evas_Object handle
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* @param part The part name
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* @param param the parameter details. It is used as both input and
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* output variable. This pointer should be valid, and the
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* parameter must exist in
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* #Edje_External_Type::parameters_info, with the exact type,
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* otherwise the operation will fail and @c EINA_FALSE will be
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* returned.
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*
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* @return @c EINA_TRUE if everything went fine and @p param members
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* are filled with information, @c EINA_FALSE on errors and @p
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* param member values are not set or valid.
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*/
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EAPI Eina_Bool
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edje_object_part_external_param_get(const Evas_Object *obj, const char *part, Edje_External_Param *param)
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{
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Edje *ed;
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Edje_Real_Part *rp;
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if ((!param) || (!param->name)) return EINA_FALSE;
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ed = _edje_fetch(obj);
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if ((!ed) || (!part)) return EINA_FALSE;
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rp = _edje_real_part_recursive_get(ed, (char *)part);
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if (!rp)
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{
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ERR("no part '%s'", part);
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return EINA_FALSE;
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}
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return _edje_external_param_get(rp->swallowed_object, param);
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}
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EAPI Evas_Object*
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edje_object_part_external_content_get(const Evas_Object *obj, const char *part, const char *content)
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{
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Edje *ed;
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Edje_Real_Part *rp;
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if (!content) return EINA_FALSE;
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ed = _edje_fetch(obj);
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if ((!ed) || (!part)) return EINA_FALSE;
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rp = _edje_real_part_recursive_get(ed, (char *)part);
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if (!rp)
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{
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ERR("no part '%s'", part);
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return EINA_FALSE;
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}
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return _edje_external_content_get(rp->swallowed_object, content);
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}
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/**
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* Facility to query the type of the given parameter of the given part.
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*
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* @param obj A valid Evas_Object handle
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* @param part The part name
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* @param param the parameter name to use.
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*
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* @return @c EDJE_EXTERNAL_PARAM_TYPE_MAX on errors, or another value
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* from #Edje_External_Param_Type on success.
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*/
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EAPI Edje_External_Param_Type
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edje_object_part_external_param_type_get(const Evas_Object *obj, const char *part, const char *param)
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{
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Edje *ed;
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Edje_Real_Part *rp;
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Edje_External_Type *type;
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Edje_External_Param_Info *info;
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ed = _edje_fetch(obj);
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if ((!ed) || (!part)) return EDJE_EXTERNAL_PARAM_TYPE_MAX;
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rp = _edje_real_part_recursive_get(ed, (char *)part);
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if (!rp)
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{
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ERR("no part '%s'", part);
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return EDJE_EXTERNAL_PARAM_TYPE_MAX;
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}
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type = evas_object_data_get(rp->swallowed_object, "Edje_External_Type");
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if (!type)
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{
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ERR("no external type for object %p", obj);
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return EDJE_EXTERNAL_PARAM_TYPE_MAX;
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}
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if (!type->parameters_info)
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{
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ERR("no parameters information for external type '%s'",
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type->module_name);
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return EDJE_EXTERNAL_PARAM_TYPE_MAX;
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}
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for (info = type->parameters_info; info->name; info++)
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if (strcmp(info->name, param) == 0)
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return info->type;
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ERR("no parameter '%s' external type '%s'", param, type->module_name);
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return EDJE_EXTERNAL_PARAM_TYPE_MAX;
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}
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/**
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* Register given type name to return the given information.
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*
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* @param type_name name to register and be known by edje's "source:"
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* parameter of "type: EXTERNAL" parts.
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* @param type_info meta-information describing how to interact with it.
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*
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* @return @c EINA_TRUE on success, @c EINA_FALSE on failure (like
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* type already registered).
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*
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* @see edje_external_type_array_register()
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*/
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EAPI Eina_Bool
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edje_external_type_register(const char *type_name, const Edje_External_Type *type_info)
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{
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if (!type_name)
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return EINA_FALSE;
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if (!type_info)
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return EINA_FALSE;
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if (type_info->abi_version != EDJE_EXTERNAL_TYPE_ABI_VERSION)
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{
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ERR("external type '%s' (%p) has incorrect abi version. "
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"got %#x where %#x was expected.",
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type_name, type_info,
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type_info->abi_version, EDJE_EXTERNAL_TYPE_ABI_VERSION);
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return EINA_FALSE;
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}
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if (eina_hash_find(type_registry, type_name))
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{
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ERR("External type '%s' already registered", type_name);
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return EINA_FALSE;
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}
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return eina_hash_add(type_registry, type_name, type_info);
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}
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/**
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* Unregister given type name previously registered.
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*
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* @param type_name name to unregister. It should be registered with
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* edje_external_type_register() before.
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*
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* @return @c EINA_TRUE on success, @c EINA_FALSE on failure (like
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* type_name did not exist).
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*
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* @see edje_external_type_array_unregister()
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*/
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EAPI Eina_Bool
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edje_external_type_unregister(const char *type_name)
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{
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if (!type_name)
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return EINA_FALSE;
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return eina_hash_del_by_key(type_registry, type_name);
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}
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/**
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* Register a batch of types and their information.
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*
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* This is the recommended function to add information as it's faster
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* than the single version edje_external_type_register().
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*
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* @note the given array is not modified, but the type name strings
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* are @b not duplicated! That is, all type names must be @b
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* live until they are unregistered! This was choosen to save
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* some memory and most people will just define the array as a
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* global static const type anyway.
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*
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* @param arrray @c NULL terminated array with type name and
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* information. Note that type name or information are not
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* modified by are @b referenced, so they must keep alive after
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* this function returns!
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*
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* @return @c EINA_TRUE on success, @c EINA_FALSE on failure (like
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* type already registered).
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*
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* @see edje_external_type_register()
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*/
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EAPI void
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edje_external_type_array_register(const Edje_External_Type_Info *array)
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{
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const Edje_External_Type_Info *itr;
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if (!array)
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return;
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for (itr = array; itr->name; itr++)
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{
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if (itr->info->abi_version != EDJE_EXTERNAL_TYPE_ABI_VERSION)
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{
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ERR("external type '%s' (%p) has incorrect abi "
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"version. got %#x where %#x was expected.",
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itr->name, itr->info,
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itr->info->abi_version, EDJE_EXTERNAL_TYPE_ABI_VERSION);
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continue;
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}
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eina_hash_direct_add(type_registry, itr->name, itr->info);
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}
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}
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/**
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* Unregister a batch of given external type previously registered.
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*
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* @param array @c NULL terminated array, should be the same as the
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* one used to register with edje_external_type_array_register()
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*
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* @see edje_external_type_unregister()
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*/
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EAPI void
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edje_external_type_array_unregister(const Edje_External_Type_Info *array)
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{
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const Edje_External_Type_Info *itr;
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if (!array)
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return;
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for (itr = array; itr->name; itr++)
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eina_hash_del(type_registry, itr->name, itr->info);
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}
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/**
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* Return the current ABI version for Edje_External_Type structure.
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*
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* Always check this number before accessing Edje_External_Type in
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* your own software. If the number is not the same, your software may
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* access invalid memory and crash, or just get garbage values.
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*
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* @warning @b NEVER, EVER define your own Edje_External_Type using the
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* return of this function as it will change as Edje library
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* (libedje.so) changes, but your type definition will
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* not. Instead, use #EDJE_EXTERNAL_TYPE_ABI_VERSION.
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*
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* Summary:
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* - use edje_external_type_abi_version_get() to check.
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* - use #EDJE_EXTERNAL_TYPE_ABI_VERSION to define/declare.
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*
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* @return version this edje library was compiled.
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*/
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EAPI unsigned int
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edje_external_type_abi_version_get(void)
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{
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return EDJE_EXTERNAL_TYPE_ABI_VERSION;
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}
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EAPI Eina_Iterator *
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edje_external_iterator_get(void)
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{
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return eina_hash_iterator_tuple_new(type_registry);
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}
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EAPI Edje_External_Param *
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edje_external_param_find(const Eina_List *params, const char *key)
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{
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const Eina_List *l;
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Edje_External_Param *param;
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EINA_LIST_FOREACH(params, l, param)
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if (!strcmp(param->name, key)) return param;
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return NULL;
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}
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EAPI Eina_Bool
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edje_external_param_int_get(const Eina_List *params, const char *key, int *ret)
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{
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Edje_External_Param *param;
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if (!params) return EINA_FALSE;
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param = edje_external_param_find(params, key);
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if (param && param->type == EDJE_EXTERNAL_PARAM_TYPE_INT && ret)
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{
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*ret = param->i;
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return EINA_TRUE;
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}
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return EINA_FALSE;
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}
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EAPI Eina_Bool
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edje_external_param_double_get(const Eina_List *params, const char *key, double *ret)
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{
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Edje_External_Param *param;
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if (!params) return EINA_FALSE;
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param = edje_external_param_find(params, key);
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if (param && param->type == EDJE_EXTERNAL_PARAM_TYPE_DOUBLE && ret)
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{
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*ret = param->d;
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return EINA_TRUE;
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}
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return EINA_FALSE;
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}
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EAPI Eina_Bool
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edje_external_param_string_get(const Eina_List *params, const char *key, const char **ret)
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{
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Edje_External_Param *param;
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if (!params) return EINA_FALSE;
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param = edje_external_param_find(params, key);
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if (param && param->type == EDJE_EXTERNAL_PARAM_TYPE_STRING && ret)
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{
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*ret = param->s;
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return EINA_TRUE;
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}
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return EINA_FALSE;
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}
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EAPI Eina_Bool
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edje_external_param_bool_get(const Eina_List *params, const char *key, Eina_Bool *ret)
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{
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Edje_External_Param *param;
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if (!params) return EINA_FALSE;
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param = edje_external_param_find(params, key);
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if (param && param->type == EDJE_EXTERNAL_PARAM_TYPE_BOOL && ret)
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{
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*ret = param->i;
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return EINA_TRUE;
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}
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return EINA_FALSE;
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}
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EAPI Eina_Bool
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edje_external_param_choice_get(const Eina_List *params, const char *key, const char **ret)
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{
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Edje_External_Param *param;
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if (!params) return EINA_FALSE;
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param = edje_external_param_find(params, key);
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if (param && param->type == EDJE_EXTERNAL_PARAM_TYPE_CHOICE && ret)
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{
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*ret = param->s;
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return EINA_TRUE;
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}
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return EINA_FALSE;
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}
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/**
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* Get the array of parameters information about a type given its name.
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*
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* @note the type names and other strings are static, that means they
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* @b NOT translated. One must use
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* Edje_External_Type::translate() to translate those.
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*
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* @return the NULL terminated array, or @c NULL if type is unknown or
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* it does not have any parameter information.
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*
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* @see edje_external_type_get()
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*/
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EAPI const Edje_External_Param_Info *
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edje_external_param_info_get(const char *type_name)
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{
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Edje_External_Type *type;
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type = eina_hash_find(type_registry, type_name);
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if (!type)
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return NULL;
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return type->parameters_info;
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}
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EAPI const Edje_External_Type *
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edje_external_type_get(const char *type_name)
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{
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return eina_hash_find(type_registry, type_name);
|
|
}
|
|
|
|
void
|
|
_edje_external_init()
|
|
{
|
|
if (!type_registry)
|
|
type_registry = eina_hash_string_superfast_new(NULL);
|
|
|
|
init_count++;
|
|
}
|
|
|
|
void
|
|
_edje_external_shutdown()
|
|
{
|
|
if (--init_count == 0)
|
|
{
|
|
eina_hash_free(type_registry);
|
|
type_registry = NULL;
|
|
}
|
|
}
|
|
|
|
Evas_Object *
|
|
_edje_external_type_add(const char *type_name, Evas *evas, Evas_Object *parent, const Eina_List *params, const char *part_name)
|
|
{
|
|
Edje_External_Type *type;
|
|
Evas_Object *obj;
|
|
|
|
type = eina_hash_find(type_registry, type_name);
|
|
if (!type)
|
|
{
|
|
ERR("external type '%s' not registered", type_name);
|
|
return NULL;
|
|
}
|
|
|
|
obj = type->add(type->data, evas, parent, params, part_name);
|
|
if (!obj)
|
|
{
|
|
ERR("External type '%s' returned NULL from constructor", type_name);
|
|
return NULL;
|
|
}
|
|
|
|
evas_object_data_set(obj, "Edje_External_Type", type);
|
|
|
|
return obj;
|
|
}
|
|
|
|
void
|
|
_edje_external_signal_emit(Evas_Object *obj, const char *emission, const char *source)
|
|
{
|
|
Edje_External_Type *type;
|
|
|
|
type = evas_object_data_get(obj, "Edje_External_Type");
|
|
if (!type)
|
|
{
|
|
ERR("External type data not found.");
|
|
return;
|
|
}
|
|
|
|
type->signal_emit(type->data, obj, emission, source);
|
|
}
|
|
|
|
Eina_Bool
|
|
_edje_external_param_set(Evas_Object *obj, const Edje_External_Param *param)
|
|
{
|
|
Edje_External_Type *type = evas_object_data_get(obj, "Edje_External_Type");
|
|
if (!type)
|
|
{
|
|
ERR("no external type for object %p", obj);
|
|
return EINA_FALSE;
|
|
}
|
|
if (!type->param_set)
|
|
{
|
|
ERR("external type '%s' from module '%s' does not provide param_set()",
|
|
type->module_name, type->module);
|
|
return EINA_FALSE;
|
|
}
|
|
return type->param_set(type->data, obj, param);
|
|
}
|
|
|
|
Eina_Bool
|
|
_edje_external_param_get(const Evas_Object *obj, Edje_External_Param *param)
|
|
{
|
|
Edje_External_Type *type = evas_object_data_get(obj, "Edje_External_Type");
|
|
if (!type)
|
|
{
|
|
ERR("no external type for object %p", obj);
|
|
return EINA_FALSE;
|
|
}
|
|
if (!type->param_get)
|
|
{
|
|
ERR("external type '%s' from module '%s' does not provide param_get()",
|
|
type->module_name, type->module);
|
|
return EINA_FALSE;
|
|
}
|
|
return type->param_get(type->data, obj, param);
|
|
}
|
|
|
|
Evas_Object*
|
|
_edje_external_content_get(const Evas_Object *obj, const char *content)
|
|
{
|
|
Edje_External_Type *type = evas_object_data_get(obj, "Edje_External_Type");
|
|
if (!type)
|
|
{
|
|
ERR("no external type for object %p", obj);
|
|
return EINA_FALSE;
|
|
}
|
|
if (!type->content_get)
|
|
{
|
|
ERR("external type '%s' from module '%s' does not provide content_get()",
|
|
type->module_name, type->module);
|
|
return EINA_FALSE;
|
|
}
|
|
return type->content_get(type->data, obj, content);
|
|
}
|
|
|
|
void
|
|
_edje_external_params_free(Eina_List *external_params, Eina_Bool free_strings)
|
|
{
|
|
Edje_External_Param *param;
|
|
|
|
EINA_LIST_FREE(external_params, param)
|
|
{
|
|
if (free_strings)
|
|
{
|
|
if (param->name) eina_stringshare_del(param->name);
|
|
if (param->s) eina_stringshare_del(param->s);
|
|
}
|
|
free(param);
|
|
}
|
|
}
|
|
|
|
void
|
|
_edje_external_recalc_apply(Edje *ed __UNUSED__, Edje_Real_Part *ep,
|
|
Edje_Calc_Params *params __UNUSED__,
|
|
Edje_Part_Description_Common *chosen_desc __UNUSED__)
|
|
{
|
|
Edje_External_Type *type;
|
|
Edje_Part_Description_External *ext;
|
|
void *params1, *params2 = NULL;
|
|
|
|
if (!ep->swallowed_object) return;
|
|
type = evas_object_data_get(ep->swallowed_object, "Edje_External_Type");
|
|
|
|
if ((!type) || (!type->state_set)) return;
|
|
|
|
ext = (Edje_Part_Description_External*) ep->param1.description;
|
|
|
|
params1 = ep->param1.external_params ?
|
|
ep->param1.external_params : ext->external_params;
|
|
|
|
if (ep->param2 && ep->param2->description)
|
|
{
|
|
ext = (Edje_Part_Description_External*) ep->param2->description;
|
|
|
|
params2 = ep->param2->external_params ?
|
|
ep->param2->external_params : ext->external_params;
|
|
}
|
|
|
|
type->state_set(type->data, ep->swallowed_object,
|
|
params1, params2, ep->description_pos);
|
|
}
|
|
|
|
void *
|
|
_edje_external_params_parse(Evas_Object *obj, const Eina_List *params)
|
|
{
|
|
Edje_External_Type *type;
|
|
|
|
type = evas_object_data_get(obj, "Edje_External_Type");
|
|
if (!type) return NULL;
|
|
|
|
if (!type->params_parse) return NULL;
|
|
|
|
return type->params_parse(type->data, obj, params);
|
|
}
|
|
|
|
void
|
|
_edje_external_parsed_params_free(Evas_Object *obj, void *params)
|
|
{
|
|
Edje_External_Type *type;
|
|
|
|
if (!params) return;
|
|
|
|
type = evas_object_data_get(obj, "Edje_External_Type");
|
|
if (!type) return;
|
|
|
|
if (!type->params_free) return;
|
|
|
|
type->params_free(params);
|
|
}
|