/**
* Given a message from JavaScript, parse it for functions and parameters.
*
* The format of the message is:
* {
* "cmd": <function name>,
* "args": [<arg0>, <arg1>, ...]
* }
*
* @param[in] message The message to parse.
* @param[out] out_function The function name.
* @param[out] out_params A PP_Var array.
* @return 0 if successful, otherwise 1.
*/
static int ParseMessage(struct PP_Var message,const char **out_function,struct PP_Var *out_params)
{
if ( message.type != PP_VARTYPE_DICTIONARY )
return(1);
struct PP_Var cmd_value = GetDictVar(message, "cmd");
*out_function = VarToCStr(cmd_value);
g_ppb_var->Release(cmd_value);
*out_params = GetDictVar(message, "args");
PostMessage("Parse.(%s) cmd.(%s)\n",*out_function,VarToCStr(*out_params));
if ( cmd_value.type != PP_VARTYPE_STRING )
return(1);
if ( out_params->type != PP_VARTYPE_ARRAY )
return(1);
return(0);
}
/**
* Given a message from JavaScript, parse it for functions and parameters.
*
* The format of the message is:
* {
* "cmd": <function name>,
* "args": [<arg0>, <arg1>, ...]
* }
*
* @param[in] message The message to parse.
* @param[out] out_function The function name.
* @param[out] out_params A PP_Var array.
* @return 0 if successful, otherwise 1.
*/
static int ParseMessage(struct PP_Var message,
char** out_function,
struct PP_Var* out_params) {
if (message.type != PP_VARTYPE_DICTIONARY) {
return 1;
}
struct PP_Var cmd_value = GetDictVar(message, "cmd");
if (cmd_value.type != PP_VARTYPE_STRING) {
g_ppb_var->Release(cmd_value);
return 1;
}
*out_function = VarToCStr(cmd_value);
g_ppb_var->Release(cmd_value);
*out_params = GetDictVar(message, "args");
if (out_params->type != PP_VARTYPE_ARRAY) {
g_ppb_var->Release(*out_params);
return 1;
}
return 0;
}
/**
* Append a PP_Var to the response dictionary.
* @param[in,out] response_var The response PP_var.
* @param[in] value The value to add to the response args.
* @param[out] out_error An error message, if this call failed.
*/
static void AppendResponseVar(struct PP_Var* response_var,
struct PP_Var value,
const char** out_error) {
struct PP_Var args_value = GetDictVar(*response_var, "args");
uint32_t args_length = g_ppb_var_array->GetLength(args_value);
PP_Bool result = g_ppb_var_array->Set(args_value, args_length, value);
if (!result) {
// Release the dictionary that was there before.
g_ppb_var->Release(*response_var);
// Return an error message instead.
*response_var = PP_MakeUndefined();
*out_error = PrintfToNewString("Unable to append value to result");
return;
}
}
