Source code
Revision control
Copy as Markdown
Other Tools
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#include "ScriptTrace.h"
#include "mozilla/Services.h" // services::*
#include "mozilla/dom/Element.h" // mozilla::dom::Element
#include "mozilla/dom/ScriptLoadContext.h" // mozilla::dom::ScriptLoadContext
#include "nsCOMPtr.h" // nsCOMPtr.h
#include "nsIObserverService.h" // nsIObserverService
#include "nsIScriptElement.h" // nsIScriptElement
#include "nsThreadUtils.h" // mozilla::Runnable, NS_DispatchToCurrentThread
namespace mozilla::dom::script {
class ScriptLoaderTestRunnable : public Runnable {
public:
ScriptLoaderTestRunnable(JS::loader::ScriptLoadRequest* aRequest,
JS::loader::LoadedScript* aLoadedScript,
const char* aEvent)
: Runnable("dom::script::ScriptLoaderTestRunnable") {
mData.AppendLiteral(u"event:");
mData.AppendASCII(aEvent);
if (aLoadedScript) {
mData.AppendLiteral(u"\nurl:");
mData.Append(
NS_ConvertUTF8toUTF16(aLoadedScript->GetURI()->GetSpecOrDefault()));
}
if (aRequest) {
nsIScriptElement* scriptElement =
aRequest->GetScriptLoadContext()->GetScriptElementForTrace();
nsCOMPtr<Element> target(do_QueryInterface(scriptElement));
if (target) {
nsAutoString id;
target->GetId(id);
mData.AppendLiteral(u"\nid:");
mData.Append(id);
}
}
}
NS_IMETHOD Run() override {
nsCOMPtr<nsIObserverService> obsService = services::GetObserverService();
obsService->NotifyObservers(nullptr, "ScriptLoaderTest",
mData.BeginReading());
return NS_OK;
}
protected:
~ScriptLoaderTestRunnable() = default;
private:
nsAutoString mData;
};
void TestingNotifyObserver(JS::loader::ScriptLoadRequest* aRequest,
JS::loader::LoadedScript* aLoadedScript,
const char* aEvent) {
nsCOMPtr<nsIObserverService> obsService = services::GetObserverService();
if (!obsService->HasObservers("ScriptLoaderTest")) {
return;
}
// NOTE: There can be pending exception for the script load itself,
// and the observer notification shouldn't be performed in that
// situation.
// Use a separate task to avoid the collision.
RefPtr<ScriptLoaderTestRunnable> runnable =
new ScriptLoaderTestRunnable(aRequest, aLoadedScript, aEvent);
(void)NS_DispatchToCurrentThread(runnable);
}
} // namespace mozilla::dom::script