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// Copyright (C) 2022 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
// based on chrome/browser/ui/pdf/chrome_pdf_web_contents_helper_client.cc:
#include "pdf_web_contents_helper_client_qt.h"
#include "content/public/browser/render_process_host.h"
#include "extensions/browser/guest_view/mime_handler_view/mime_handler_view_guest.h"
#include "extensions/common/constants.h"
namespace {
bool IsPdfExtensionOrigin(const url::Origin &origin)
{
return origin.scheme() == extensions::kExtensionScheme &&
origin.host() == extension_misc::kPdfExtensionId;
}
// from chrome/browser/pdf/pdf_frame_util.cc:
content::RenderFrameHost *FindPdfChildFrame(content::RenderFrameHost *rfh)
{
if (!IsPdfExtensionOrigin(rfh->GetLastCommittedOrigin()))
return nullptr;
content::RenderFrameHost *pdf_rfh = nullptr;
rfh->ForEachRenderFrameHost(
base::BindRepeating(
[](content::RenderFrameHost *&pdf_rfh, content::RenderFrameHost *rfh) {
if (!rfh->GetProcess()->IsPdf())
return;
DCHECK(IsPdfExtensionOrigin(rfh->GetParent()->GetLastCommittedOrigin()));
DCHECK(!pdf_rfh);
pdf_rfh = rfh;
}, std::ref(pdf_rfh)));
return pdf_rfh;
}
} // namespace
PDFWebContentsHelperClientQt::PDFWebContentsHelperClientQt() = default;
PDFWebContentsHelperClientQt::~PDFWebContentsHelperClientQt() = default;
content::RenderFrameHost *PDFWebContentsHelperClientQt::FindPdfFrame(content::WebContents *contents)
{
content::RenderFrameHost *main_frame = contents->GetMainFrame();
content::RenderFrameHost *pdf_frame = FindPdfChildFrame(main_frame);
return pdf_frame ? pdf_frame : main_frame;
}
void PDFWebContentsHelperClientQt::SetPluginCanSave(content::WebContents *contents, bool can_save)
{
auto *guest_view = extensions::MimeHandlerViewGuest::FromWebContents(contents);
if (guest_view)
guest_view->SetPluginCanSave(can_save);
}
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