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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_CHROMEOS_PRINTING_PRINT_PREVIEW_PRINT_PREVIEW_UI_WRAPPER_H_
#define CHROME_BROWSER_CHROMEOS_PRINTING_PRINT_PREVIEW_PRINT_PREVIEW_UI_WRAPPER_H_
#include <stdint.h>
#include <optional>
#include "base/memory/raw_ptr.h"
#include "base/unguessable_token.h"
#include "base/values.h"
#include "components/printing/common/print.mojom.h"
#include "mojo/public/cpp/bindings/associated_receiver.h"
#include "mojo/public/cpp/bindings/associated_remote.h"
#include "mojo/public/cpp/bindings/pending_associated_remote.h"
#include "ui/gfx/geometry/rect_f.h"
namespace content {
class RenderFrameHost;
} // namespace content
namespace chromeos {
// Handles webcontent-associated print preview commands. Since webcontents
// cannot be passed to ash, this class serves as a front for handling print
// preview UI-related mojo calls from the renderer process.
class PrintPreviewUiWrapper : public ::printing::mojom::PrintPreviewUI {
public:
PrintPreviewUiWrapper();
PrintPreviewUiWrapper(const PrintPreviewUiWrapper&) = delete;
PrintPreviewUiWrapper& operator=(const PrintPreviewUiWrapper&) = delete;
~PrintPreviewUiWrapper() override;
// Establish the renderer bindings.
void BindPrintPreviewUI(content::RenderFrameHost* rfh);
// Start the process for generating a print preview. Preview generation is
// done asynchronously, updates are provided via mojom::PrintPreviewUI.
void GeneratePrintPreview(base::Value::Dict settings);
// mojom::PrintPreviewUI::
void SetOptionsFromDocument(
::printing::mojom::OptionsFromDocumentParamsPtr params,
int32_t request_id) override;
void DidPrepareDocumentForPreview(int32_t document_cookie,
int32_t request_id) override;
void DidPreviewPage(::printing::mojom::DidPreviewPageParamsPtr params,
int32_t request_id) override;
void MetafileReadyForPrinting(
::printing::mojom::DidPreviewDocumentParamsPtr params,
int32_t request_id) override;
void PrintPreviewFailed(int32_t document_cookie, int32_t request_id) override;
void PrintPreviewCancelled(int32_t document_cookie,
int32_t request_id) override;
void PrinterSettingsInvalid(int32_t document_cookie,
int32_t request_id) override;
void DidGetDefaultPageLayout(
::printing::mojom::PageSizeMarginsPtr page_layout_in_points,
const gfx::RectF& printable_area_in_points,
bool all_pages_have_custom_size,
bool all_pages_have_custom_orientation,
int32_t request_id) override;
void DidStartPreview(::printing::mojom::DidStartPreviewParamsPtr params,
int32_t request_id) override;
// Static function to check if a print preview instance and its request ID
// should be cancelled.
static bool ShouldCancelRequest(
const std::optional<int32_t>& print_preview_ui_id,
int request_id);
// Reset local state and remove internal ID.
void Reset();
private:
friend class PrintViewManagerCrosTest;
// Establish instance ID.
void SetPreviewUIId();
// Unique ID of this instance. Note that mojom::PrintManagerHost relies on
// a `int32_t` to be the identifier of a PrintPreviewUI instance.
std::optional<int32_t> id_;
raw_ptr<content::RenderFrameHost> render_frame_host_;
mojo::AssociatedRemote<::printing::mojom::PrintRenderFrame>
print_render_frame_;
mojo::AssociatedReceiver<::printing::mojom::PrintPreviewUI> receiver_{this};
};
} // namespace chromeos
#endif // CHROME_BROWSER_CHROMEOS_PRINTING_PRINT_PREVIEW_PRINT_PREVIEW_UI_WRAPPER_H_
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