cef/tests/cefclient/extension_test.cpp

112 lines
3.6 KiB
C++

// Copyright (c) 2008-2009 The Chromium Embedded Framework Authors. All rights
// reserved. Use of this source code is governed by a BSD-style license that
// can be found in the LICENSE file.
#include "extension_test.h"
// Implementation of the V8 handler class for the "cef.test" extension.
class ClientV8ExtensionHandler : public CefThreadSafeBase<CefV8Handler>
{
public:
ClientV8ExtensionHandler() : test_param_("An initial string value.") {}
virtual ~ClientV8ExtensionHandler() {}
// Execute with the specified argument list and return value. Return true if
// the method was handled.
virtual bool Execute(const CefString& name,
CefRefPtr<CefV8Value> object,
const CefV8ValueList& arguments,
CefRefPtr<CefV8Value>& retval,
CefString& exception)
{
if(name == "SetTestParam")
{
// Handle the SetTestParam native function by saving the string argument
// into the local member.
if(arguments.size() != 1 || !arguments[0]->IsString())
return false;
test_param_ = arguments[0]->GetStringValue();
return true;
}
else if(name == "GetTestParam")
{
// Handle the GetTestParam native function by returning the local member
// value.
retval = CefV8Value::CreateString(test_param_);
return true;
}
else if(name == "GetTestObject")
{
// Handle the GetTestObject native function by creating and returning a
// new V8 object.
retval = CefV8Value::CreateObject(NULL);
// Add a string parameter to the new V8 object.
retval->SetValue("param", CefV8Value::CreateString(
"Retrieving a parameter on a native object succeeded."));
// Add a function to the new V8 object.
retval->SetValue("GetMessage",
CefV8Value::CreateFunction("GetMessage", this));
return true;
}
else if(name == "GetMessage")
{
// Handle the GetMessage object function by returning a string.
retval = CefV8Value::CreateString(
"Calling a function on a native object succeeded.");
return true;
}
return false;
}
private:
CefString test_param_;
};
void InitExtensionTest()
{
// Register a V8 extension with the below JavaScript code that calls native
// methods implemented in ClientV8ExtensionHandler.
std::string code = "var cef;"
"if (!cef)"
" cef = {};"
"if (!cef.test)"
" cef.test = {};"
"(function() {"
" cef.test.__defineGetter__('test_param', function() {"
" native function GetTestParam();"
" return GetTestParam();"
" });"
" cef.test.__defineSetter__('test_param', function(b) {"
" native function SetTestParam();"
" if(b) SetTestParam(b);"
" });"
" cef.test.test_object = function() {"
" native function GetTestObject();"
" return GetTestObject();"
" };"
"})();";
CefRegisterExtension("v8/test", code, new ClientV8ExtensionHandler());
}
void RunExtensionTest(CefRefPtr<CefBrowser> browser)
{
std::string html =
"<html><body>ClientV8ExtensionHandler says:<br><pre>"
"<script language=\"JavaScript\">"
"cef.test.test_param ="
" 'Assign and retrieve a value succeeded the first time.';"
"document.writeln(cef.test.test_param);"
"cef.test.test_param ="
" 'Assign and retrieve a value succeeded the second time.';"
"document.writeln(cef.test.test_param);"
"var obj = cef.test.test_object();"
"document.writeln(obj.param);"
"document.writeln(obj.GetMessage());"
"</script>"
"</pre></body></html>";
browser->GetMainFrame()->LoadString(html, "about:blank");
}