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/*
* weechat-js-v8.cpp - v8 javascript functions
*
* Copyright (C) 2013 Koka El Kiwi <kokakiwi@kokakiwi.net>
* Copyright (C) 2015-2021 Sébastien Helleu <flashcode@flashtux.org>
*
* This file is part of WeeChat, the extensible chat client.
*
* WeeChat is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* WeeChat is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with WeeChat. If not, see <https://www.gnu.org/licenses/>.
*/
#undef _
#include <cstdio>
extern "C"
{
#include "../weechat-plugin.h"
#include "../plugin-script.h"
}
#include "weechat-js.h"
#include "weechat-js-v8.h"
#define PRINT_EXCEPTION \
Local<Value> exception = trycatch.Exception(); \
String::Utf8Value str_exception(exception); \
weechat_printf (NULL, \
weechat_gettext ("%s%s: exception: %s"), \
weechat_prefix ("error"), JS_PLUGIN_NAME, \
*str_exception);
using namespace v8;
/*
* Constructor.
*/
WeechatJsV8::WeechatJsV8()
{
this->global = ObjectTemplate::New();
}
/*
* Destructor.
*/
WeechatJsV8::~WeechatJsV8()
{
this->context.Dispose();
}
/*
* Loads a javascript script.
*/
bool
WeechatJsV8::load(Handle<String> source)
{
this->source = source;
return true;
}
/*
* Loads a javascript script.
*/
bool
WeechatJsV8::load(const char *source)
{
Handle<String> src = String::New(source);
return this->load(src);
}
/*
* Executes a javascript script.
*/
bool
WeechatJsV8::execScript()
{
v8::TryCatch trycatch;
this->context = Context::New(NULL, this->global);
Context::Scope context_scope(this->context);
Handle<Script> script = Script::Compile(this->source);
if (script.IsEmpty())
{
PRINT_EXCEPTION;
return false;
}
else
{
Local<Value> value = script->Run();
if (value.IsEmpty())
{
PRINT_EXCEPTION;
return false;
}
}
return true;
}
/*
* Checks if a function with given name exists in script.
*/
bool
WeechatJsV8::functionExists(const char *function)
{
Context::Scope context_scope(this->context);
Handle<Object> global = this->context->Global();
Handle<Value> value = global->Get(String::New(function));
return value->IsFunction();
}
/*
* Executes a function in a javascript script.
*/
Handle<Value>
WeechatJsV8::execFunction(const char *function, int argc, Handle<Value> *argv)
{
v8::TryCatch trycatch;
Context::Scope context_scope(this->context);
Handle<Object> global = this->context->Global();
Handle<Value> value = global->Get(String::New(function));
Handle<Function> func = Handle<Function>::Cast(value);
Handle<Value> res = func->Call(global, argc, argv);
if (res.IsEmpty())
{
PRINT_EXCEPTION;
}
return res;
}
/*
* Sets something in the global.
*/
void
WeechatJsV8::addGlobal(Handle<String> key, Handle<Template> val)
{
this->global->Set(key, val);
}
/*
* Sets something in the global.
*/
void
WeechatJsV8::addGlobal(const char *key, Handle<Template> val)
{
this->addGlobal(String::New(key), val);
}
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