third_party/WebKit/Source/modules/installedapp/NavigatorInstalledApp.cpp

// Copyright 2016 The Chromium 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 "modules/installedapp/NavigatorInstalledApp.h"

#include "bindings/core/v8/CallbackPromiseAdapter.h"
#include "bindings/core/v8/ScriptPromise.h"
#include "bindings/core/v8/ScriptPromiseResolver.h"
#include "bindings/core/v8/ScriptState.h"
#include "core/dom/DOMException.h"
#include "core/dom/Document.h"
#include "core/dom/ExceptionCode.h"
#include "core/frame/LocalDOMWindow.h"
#include "core/frame/LocalFrame.h"
#include "core/frame/Navigator.h"
#include "modules/installedapp/InstalledAppController.h"
#include "modules/installedapp/RelatedApplication.h"
#include "public/platform/modules/installedapp/WebInstalledAppClient.h"
#include "public/platform/modules/installedapp/WebRelatedApplication.h"
#include "wtf/PtrUtil.h"

namespace blink {

NavigatorInstalledApp::NavigatorInstalledApp(LocalFrame* frame)
    : DOMWindowProperty(frame)
{
}

NavigatorInstalledApp* NavigatorInstalledApp::from(Document& document)
{
    if (!document.frame() || !document.frame()->domWindow())
        return nullptr;
    Navigator& navigator = *document.frame()->domWindow()->navigator();
    return &from(navigator);
}

NavigatorInstalledApp& NavigatorInstalledApp::from(Navigator& navigator)
{
    NavigatorInstalledApp* supplement = static_cast<NavigatorInstalledApp*>(Supplement<Navigator>::from(navigator, supplementName()));
    if (!supplement) {
        supplement = new NavigatorInstalledApp(navigator.frame());
        provideTo(navigator, supplementName(), supplement);
    }
    return *supplement;
}

ScriptPromise NavigatorInstalledApp::getInstalledRelatedApps(ScriptState* scriptState, Navigator& navigator)
{
    return NavigatorInstalledApp::from(navigator).getInstalledRelatedApps(scriptState);
}

class RelatedAppArray {
    STATIC_ONLY(RelatedAppArray);

public:
    using WebType = const WebVector<WebRelatedApplication>&;

    static HeapVector<Member<RelatedApplication>> take(ScriptPromiseResolver*, const WebVector<WebRelatedApplication>& webInfo)
    {
        HeapVector<Member<RelatedApplication>> applications;
        for (const auto& webApplication : webInfo)
            applications.append(RelatedApplication::create(webApplication.platform, webApplication.url, webApplication.id));
        return applications;
    }
};

ScriptPromise NavigatorInstalledApp::getInstalledRelatedApps(ScriptState* scriptState)
{
    ScriptPromiseResolver* resolver = ScriptPromiseResolver::create(scriptState);
    ScriptPromise promise = resolver->promise();

    // Don't crash when called and unattached to document.
    Document* document = m_frame ? m_frame->document() : 0;

    if (!document || !controller()) {
        DOMException* exception = DOMException::create(InvalidStateError, "The object is no longer associated to a document.");
        resolver->reject(exception);
        return promise;
    }

    controller()->getInstalledApps(
        WebSecurityOrigin(scriptState->getExecutionContext()->getSecurityOrigin()),
        wrapUnique(new CallbackPromiseAdapter<RelatedAppArray, void>(resolver)));
    return promise;
}

InstalledAppController* NavigatorInstalledApp::controller()
{
    if (!frame())
        return nullptr;

    return InstalledAppController::from(*frame());
}

const char* NavigatorInstalledApp::supplementName()
{
    return "NavigatorInstalledApp";
}

DEFINE_TRACE(NavigatorInstalledApp)
{
    Supplement<Navigator>::trace(visitor);
    DOMWindowProperty::trace(visitor);
}

} // namespace blink