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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

#include "quota_permission_context_qt.h"

#include "content/browser/web_contents/web_contents_impl.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/render_frame_host.h"
#include "quota_request_controller_impl.h"
#include "qwebenginequotarequest.h"
#include "web_contents_delegate_qt.h"
#include "web_contents_view_qt.h"

using content::QuotaPermissionContext;
using content::RenderFrameHost;
using content::StorageQuotaParams;
using content::WebContents;

namespace QtWebEngineCore {

void QuotaPermissionContextQt::RequestQuotaPermission(const StorageQuotaParams &params, int render_process_id, PermissionCallback callback)
{
    if (params.storage_type != blink::mojom::StorageType::kPersistent) {
        // For now we only support requesting quota with this interface
        // for Persistent storage type.
        dispatchCallbackOnIOThread(std::move(callback), QUOTA_PERMISSION_RESPONSE_DISALLOW);
        return;
    }

    if (!content::BrowserThread::CurrentlyOn(content::BrowserThread::UI)) {
        content::GetUIThreadTaskRunner({})->PostTask(FROM_HERE,
            base::BindOnce(&QuotaPermissionContextQt::RequestQuotaPermission, this,
                           params, render_process_id, std::move(callback)));
        return;
    }

    RenderFrameHost *renderFrameHost = RenderFrameHost::FromID(render_process_id, params.render_frame_id);
    if (!renderFrameHost) {
        LOG(WARNING) << "Attempt to request quota from frameless renderer: "
                     << render_process_id << "," << params.render_frame_id;
        dispatchCallbackOnIOThread(std::move(callback), QUOTA_PERMISSION_RESPONSE_CANCELLED);
        return;
    }

    WebContents *webContents = WebContents::FromRenderFrameHost(renderFrameHost);
    if (!webContents) {
        LOG(ERROR) << "Attempt to request quota from frame missing webcontents";
        dispatchCallbackOnIOThread(std::move(callback), QUOTA_PERMISSION_RESPONSE_CANCELLED);
        return;
    }

    WebContentsAdapterClient *client = WebContentsViewQt::from(static_cast<content::WebContentsImpl *>(webContents)->GetView())->client();
    if (!client) {
        LOG(ERROR) << "Attempt to request quota from content missing webcontents client";
        dispatchCallbackOnIOThread(std::move(callback), QUOTA_PERMISSION_RESPONSE_CANCELLED);
        return;
    }

    QWebEngineQuotaRequest request(
        QSharedPointer<QuotaRequestControllerImpl>::create(this, params, std::move(callback)));
    client->runQuotaRequest(std::move(request));
}

void QuotaPermissionContextQt::dispatchCallbackOnIOThread(PermissionCallback callback,
                                                          QuotaPermissionContext::QuotaPermissionResponse response)
{
    if (callback.is_null())
        return;

    if (!content::BrowserThread::CurrentlyOn(content::BrowserThread::IO)) {
        content::GetIOThreadTaskRunner({})->PostTask(FROM_HERE,
            base::BindOnce(&QuotaPermissionContextQt::dispatchCallbackOnIOThread,
                           this, std::move(callback), response));
        return;
    }

    std::move(callback).Run(response);
}

} // namespace QtWebEngineCore