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121 lines (109 loc) · 3.2 KB
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#include "Stdafx.h"
#include "include/cef_runnable.h"
#include "ScriptCore.h"
#include "ScriptException.h"
namespace CefSharp
{
bool ScriptCore::TryGetMainFrame(CefRefPtr<CefBrowser> browser, CefRefPtr<CefFrame>& frame)
{
if (browser != nullptr)
{
frame = browser->GetMainFrame();
return frame != nullptr;
}
else
{
return false;
}
}
void ScriptCore::UIT_Execute(CefRefPtr<CefBrowser> browser, CefString script)
{
CefRefPtr<CefFrame> mainFrame;
if (TryGetMainFrame(browser, mainFrame))
{
mainFrame->ExecuteJavaScript(script, "about:blank", 0);
}
}
void ScriptCore::UIT_Evaluate(CefRefPtr<CefBrowser> browser, CefString script)
{
CefRefPtr<CefFrame> mainFrame;
if (TryGetMainFrame(browser, mainFrame))
{
CefRefPtr<CefV8Context> context = mainFrame->GetV8Context();
if (context.get() && context->Enter())
{
CefRefPtr<CefV8Value> result;
CefRefPtr<CefV8Exception> exception;
bool success = context->Eval(script, result, exception);
if (success)
{
try
{
_result = convertFromCef(result);
}
catch (Exception^ ex)
{
_exceptionMessage = ex->Message;
}
}
else if (exception.get())
{
_exceptionMessage = toClr(exception->GetMessage());
}
else
{
_exceptionMessage = "Failed to evaluate script";
}
context->Exit();
}
}
else
{
_exceptionMessage = "Failed to obtain reference to main frame";
}
SetEvent(_event);
}
void ScriptCore::Execute(CefRefPtr<CefBrowser> browser, CefString script)
{
if (CefCurrentlyOn(TID_UI))
{
UIT_Execute(browser, script);
}
else
{
CefPostTask(TID_UI, NewCefRunnableMethod(this, &ScriptCore::UIT_Execute,
browser, script));
}
}
gcroot<Object^> ScriptCore::Evaluate(CefRefPtr<CefBrowser> browser, CefString script, double timeout)
{
AutoLock lock_scope(this);
_result = nullptr;
_exceptionMessage = nullptr;
if (CefCurrentlyOn(TID_UI))
{
UIT_Evaluate(browser, script);
}
else
{
CefPostTask(TID_UI, NewCefRunnableMethod(this, &ScriptCore::UIT_Evaluate,
browser, script));
}
switch (WaitForSingleObject(_event, timeout))
{
case WAIT_TIMEOUT:
throw gcnew ScriptException("Script timed out");
case WAIT_ABANDONED:
case WAIT_FAILED:
throw gcnew ScriptException("Script error");
}
if (_exceptionMessage)
{
throw gcnew ScriptException(_exceptionMessage);
}
else
{
return _result;
}
}
}