npapi_utils.c File Reference

Hbbtv netscape plugin utilities. More...

#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <ctype.h>
#include "techtype.h"
#include "dbgfuncs.h"
#include "hbbtv_js.h"
#include "npapi_utils.h"
#include "plugin.h"
#include "hz_debug.h"

Classes
struct	S_JS_CALLBACK_PARAMS

Functions
void	NP_UtilsInit (void)
void	NP_UtilsArrayToResult (NPP instance, U32BIT *array, U32BIT num_elements, NPVariant *result)
void	NP_UtilsStringToResult (S_HBBTV_STRING str, NPVariant *result)
void	NP_UtilsHbbtvStringToResult (void *hbbtv_string, NPVariant *result)
bool	NP_UtilsStringIsNumeric (char *in_string)
BOOLEAN	NP_UtilsGetU32BIT (const NPVariant *input, U32BIT *output)
	Extracts a number from an NPVariant and saves it (with casting) into the U32BIT pointed by output. This function checks whether the NPVariant contains an uint32_t or a double. More...
S_OBJECT_DATA *	NP_UtilsFindObject (S_OBJECT_DATA **list, void *handle)
NPObject *	NP_UtilsAddEventListener (S_PLUGIN *plugin, const NPVariant *value, U32BIT event_type)
	Adds a new event lister to an object. More...
U32BIT	NP_UtilsRemoveEventListener (S_PLUGIN *plugin, NPObject *handler)
	Remove an event lister from an object. More...
void	NP_UtilsFreeAllEventListeners (S_PLUGIN *plugin)
	Free all event handlers for an object. More...
void	NP_UtilsAsyncCallback (S_PLUGIN **plugin_list, void *handle, U32BIT event_type, NPVariant *args, uint32_t num_args)
	Call browser's pluginthreadasynccall to execute JS callback function. More...
BOOLEAN	NP_UtilsResolveUrl (NPP instance, S_HBBTV_STRING *uri)
	Resolve URL, convert to full path URL, if needed. More...

Detailed Description

Hbbtv netscape plugin utilities.

Date

April 2013

Author

Chris Aldworth

Function Documentation

NPObject* NP_UtilsAddEventListener	(	S_PLUGIN *	plugin,
		const NPVariant *	value,
		U32BIT	event_type
	)

Adds a new event lister to an object.

---

Parameters

input	- Pointer to plugin object
input	- NPVariant reference to new event handler
input	- Object-specific event-type id

Returns

Pointer to handler object

void NP_UtilsAsyncCallback	(	S_PLUGIN **	plugin_list,
		void *	handle,
		U32BIT	event_type,
		NPVariant *	args,
		uint32_t	num_args
	)

Call browser's pluginthreadasynccall to execute JS callback function.

---

Parameters

input	- NPP plugin instance reference
input	- NP object of JS Callback function to invoke
input	- Array of arguments
input	- Number of arguments

void NP_UtilsFreeAllEventListeners

(

S_PLUGIN *

plugin

)

Free all event handlers for an object.

---

Parameters

input

- Pointer to head of handler list to be freed

Returns

void

BOOLEAN NP_UtilsGetU32BIT	(	const NPVariant *	input,
		U32BIT *	output
	)

Extracts a number from an NPVariant and saves it (with casting) into the U32BIT pointed by output. This function checks whether the NPVariant contains an uint32_t or a double.

---

Parameters

input	- NPVariant variable containing the number
output	- pointer to an U32BIT variable where to store the result

Returns

TRUE/FALSE - Success

U32BIT NP_UtilsRemoveEventListener	(	S_PLUGIN *	plugin,
		NPObject *	handler
	)

Remove an event lister from an object.

---

Parameters

input	- Pointer to head of handler list
input	- NPObject reference of event handler to be removed

Returns

Pointer to new head of the handler list

BOOLEAN NP_UtilsResolveUrl	(	NPP	instance,
		S_HBBTV_STRING *	uri
	)

Resolve URL, convert to full path URL, if needed.

---

Parameters

input	- NPP plugin instance reference
input/output	- URL (input relative or full, output is full path)

Returns

TRUE - if relative URL and was converted to full path, Note: uri->zptr will need to be freed after use. FALSE - already full path (not touched)