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Allow plugin init without calls back to the plugin

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This commit is contained in:
Sebastian Ramacher 2017-03-17 19:28:55 +01:00
parent 63314cfbc9
commit f477f7a2a6
2 changed files with 78 additions and 60 deletions
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124
zathura/plugin-api.h
View File

@ -9,56 +9,6 @@
#include "version.h"
typedef struct zathura_plugin_functions_s zathura_plugin_functions_t;
/**
* Functions register function
*
* @param functions The functions struct
*/
typedef void (*zathura_plugin_register_function_t)(zathura_plugin_functions_t* functions);
typedef struct zathura_plugin_version_s {
unsigned int major; /**< Major */
unsigned int minor; /**< Minor */
unsigned int rev; /**< Revision */
} zathura_plugin_version_t;
typedef struct zathura_plugin_definition_s
{
const char* name;
const zathura_plugin_version_t version;
zathura_plugin_register_function_t register_function;
const size_t mime_types_size;
const char** mime_types;
} zathura_plugin_definition_t;
#define JOIN(x, y) JOIN2(x, y)
#define JOIN2(x, y) x ## _ ## y
#define ZATHURA_PLUGIN_DEFINITION_SYMBOL \
JOIN(zathura_plugin, JOIN(ZATHURA_API_VERSION, ZATHURA_ABI_VERSION))
/**
* Register a plugin.
*
* @param plugin_name the name of the plugin
* @param major the plugin's major version
* @param minor the plugin's minor version
* @param rev the plugin's revision
* @param register_functions function to register the plugin's document functions
* @param mimetypes a char array of mime types supported by the plugin
*/
#define ZATHURA_PLUGIN_REGISTER(plugin_name, major, minor, rev, register_functions, mimetypes) \
static const char* zathura_plugin_mime_types[] = mimetypes; \
\
const zathura_plugin_definition_t ZATHURA_PLUGIN_DEFINITION_SYMBOL = { \
.name = plugin_name, \
.version = { major, minor, rev }, \
.register_function = register_functions, \
.mime_types_size = sizeof(zathura_plugin_mime_types) / sizeof(zathura_plugin_mime_types[0]), \
.mime_types = zathura_plugin_mime_types \
}; \
#define ZATHURA_PLUGIN_MIMETYPES(...) __VA_ARGS__
/**
* Opens a document
@ -234,5 +184,79 @@ struct zathura_plugin_functions_s
zathura_plugin_page_render_cairo_t page_render_cairo;
};
/**
* Functions register function
*
* @param functions The functions struct
*/
typedef void (*zathura_plugin_register_function_t)(zathura_plugin_functions_t* functions);
typedef struct zathura_plugin_version_s {
unsigned int major; /**< Major */
unsigned int minor; /**< Minor */
unsigned int rev; /**< Revision */
} zathura_plugin_version_t;
typedef struct zathura_plugin_definition_s {
const char* name;
const zathura_plugin_version_t version;
const zathura_plugin_register_function_t register_function;
zathura_plugin_functions_t functions;
const size_t mime_types_size;
const char** mime_types;
} zathura_plugin_definition_t;
#define JOIN(x, y) JOIN2(x, y)
#define JOIN2(x, y) x ## _ ## y
#define ZATHURA_PLUGIN_DEFINITION_SYMBOL \
JOIN(zathura_plugin, JOIN(ZATHURA_API_VERSION, ZATHURA_ABI_VERSION))
/**
* Register a plugin.
*
* @param plugin_name the name of the plugin
* @param major the plugin's major version
* @param minor the plugin's minor version
* @param rev the plugin's revision
* @param register_functions function to register the plugin's document functions
* @param mimetypes a char array of mime types supported by the plugin
*/
#define ZATHURA_PLUGIN_REGISTER(plugin_name, major, minor, rev, register_functions, mimetypes) \
static const char* zathura_plugin_mime_types[] = mimetypes; \
\
const zathura_plugin_definition_t ZATHURA_PLUGIN_DEFINITION_SYMBOL = { \
.name = plugin_name, \
.version = { major, minor, rev }, \
.register_function = register_functions, \
.mime_types_size = sizeof(zathura_plugin_mime_types) / sizeof(zathura_plugin_mime_types[0]), \
.mime_types = zathura_plugin_mime_types \
}; \
/**
* Register a plugin.
*
* @param plugin_name the name of the plugin
* @param major the plugin's major version
* @param minor the plugin's minor version
* @param rev the plugin's revision
* @param plugin_functions function to register the plugin's document functions
* @param mimetypes a char array of mime types supported by the plugin
*/
#define ZATHURA_PLUGIN_REGISTER_WITH_FUNCTIONS(plugin_name, major, minor, rev, plugin_functions, mimetypes) \
static const char* zathura_plugin_mime_types[] = mimetypes; \
\
const zathura_plugin_definition_t ZATHURA_PLUGIN_DEFINITION_SYMBOL = { \
.name = plugin_name, \
.version = { major, minor, rev }, \
.register_function = NULL, \
.functions = plugin_functions, \
.mime_types_size = sizeof(zathura_plugin_mime_types) / sizeof(zathura_plugin_mime_types[0]), \
.mime_types = zathura_plugin_mime_types \
}; \
#define ZATHURA_PLUGIN_MIMETYPES(...) __VA_ARGS__
#define ZATHURA_PLUGIN_FUNCTIONS(...) __VA_ARGS__
#endif // PLUGIN_API_H

14
zathura/plugin.c
View File

@ -162,15 +162,6 @@ zathura_plugin_manager_load(zathura_plugin_manager_t* plugin_manager)
continue;
}
/* check register functions */
if (plugin_definition->register_function == NULL) {
girara_error("plugin has no document functions register function");
g_free(path);
g_free(plugin);
g_module_close(handle);
continue;
}
plugin = g_try_malloc0(sizeof(zathura_plugin_t));
if (plugin == NULL) {
girara_error("Failed to allocate memory for plugin.");
@ -180,6 +171,7 @@ zathura_plugin_manager_load(zathura_plugin_manager_t* plugin_manager)
}
plugin->definition = plugin_definition;
plugin->functions = plugin_definition->functions;
plugin->content_types = girara_list_new2(g_free);
plugin->handle = handle;
plugin->path = path;
@ -189,7 +181,9 @@ zathura_plugin_manager_load(zathura_plugin_manager_t* plugin_manager)
zathura_plugin_add_mimetype(plugin, plugin_definition->mime_types[s]);
}
// register functions
plugin->definition->register_function(&(plugin->functions));
if (plugin->definition->register_function != NULL) {
plugin->definition->register_function(&(plugin->functions));
}
bool ret = register_plugin(plugin_manager, plugin);
if (ret == false) {