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chore: add Then helper for native promises (#16978)

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Shelley Vohr 2019-02-18 14:25:28 +00:00 • committed by Samuel Attard
parent a04d9ef35b
commit ef2e7d95fe
1 changed files with 12 additions and 0 deletions
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12
atom/common/promise_util.h
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@ -8,6 +8,7 @@
#include <string> #include <string>
#include "atom/common/api/locker.h" #include "atom/common/api/locker.h"
#include "atom/common/native_mate_converters/callback.h"
#include "content/public/browser/browser_thread.h" #include "content/public/browser/browser_thread.h"
#include "native_mate/converter.h" #include "native_mate/converter.h"
@ -46,6 +47,17 @@ class Promise : public base::RefCounted<Promise> {
return GetInner()->Reject(GetContext(), v8::Undefined(isolate())); return GetInner()->Reject(GetContext(), v8::Undefined(isolate()));
} }
v8::MaybeLocal<v8::Promise> Then(base::Closure cb) {
v8::HandleScope handle_scope(isolate());
v8::Context::Scope context_scope(
v8::Local<v8::Context>::New(isolate(), GetContext()));
v8::Local<v8::Value> value = mate::ConvertToV8(isolate(), cb);
v8::Local<v8::Function> handler = v8::Local<v8::Function>::Cast(value);
return GetHandle()->Then(GetContext(), handler);
}
// Promise resolution is a microtask // Promise resolution is a microtask
// We use the MicrotasksRunner to trigger the running of pending microtasks // We use the MicrotasksRunner to trigger the running of pending microtasks
template <typename T> template <typename T>