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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.
#include "chrome/browser/chromeos/printing/print_preview/print_preview_webcontents_manager.h"
#include "base/check_deref.h"
#include "base/no_destructor.h"
#include "base/unguessable_token.h"
#include "chrome/browser/ash/crosapi/crosapi_ash.h"
#include "chrome/browser/ash/crosapi/crosapi_manager.h"
#include "chrome/browser/ash/printing/print_preview/print_preview_webcontents_adapter_ash.h"
#include "chrome/browser/chromeos/printing/print_preview/print_settings_converter.h"
#include "chrome/browser/chromeos/printing/print_preview/print_view_manager_cros.h"
#include "chromeos/crosapi/mojom/print_preview_cros.mojom.h"
#include "components/device_event_log/device_event_log.h"
#include "components/printing/common/print.mojom.h"
#include "content/public/browser/web_contents.h"
#include "mojo/public/cpp/bindings/message.h"
using ::printing::mojom::RequestPrintPreviewParamsPtr;
namespace chromeos {
namespace {
PrintPreviewWebcontentsManager* g_instance_for_testing = nullptr;
crosapi::mojom::PrintPreviewCrosDelegate* g_delegate_instance_for_testing =
nullptr;
crosapi::mojom::PrintPreviewCrosDelegate& print_preview_cros_delegate() {
if (g_delegate_instance_for_testing) {
return CHECK_DEREF(g_delegate_instance_for_testing);
}
return CHECK_DEREF(crosapi::CrosapiManager::Get()
->crosapi_ash()
->print_preview_webcontents_adapter_ash());
}
} // namespace
// static
PrintPreviewWebcontentsManager* PrintPreviewWebcontentsManager::Get() {
if (g_instance_for_testing) {
return g_instance_for_testing;
}
static base::NoDestructor<PrintPreviewWebcontentsManager> instance;
return instance.get();
}
// static
void PrintPreviewWebcontentsManager::SetInstanceForTesting(
PrintPreviewWebcontentsManager* manager) {
g_instance_for_testing = manager;
}
// static
void PrintPreviewWebcontentsManager::ResetInstanceForTesting() {
g_instance_for_testing = nullptr;
}
PrintPreviewWebcontentsManager::PrintPreviewWebcontentsManager() = default;
PrintPreviewWebcontentsManager::~PrintPreviewWebcontentsManager() = default;
void PrintPreviewWebcontentsManager::Initialize() {
// Register the C++ (non-mojo) client.
if (crosapi::CrosapiManager::IsInitialized()) {
crosapi::CrosapiManager::Get()
->crosapi_ash()
->print_preview_webcontents_adapter_ash()
->RegisterAshClient(this);
}
}
void PrintPreviewWebcontentsManager::GeneratePrintPreview(
const base::UnguessableToken& token,
crosapi::mojom::PrintSettingsPtr settings,
GeneratePrintPreviewCallback callback) {
const auto found_content_iter = token_to_webcontents_.find(token);
if (found_content_iter == token_to_webcontents_.end()) {
mojo::ReportBadMessage(
"Bad token, can only be called by a valid print preview instance.");
return;
}
PrintViewManagerCros* view_manager =
PrintViewManagerCros::FromWebContents(found_content_iter->second);
if (!view_manager) {
PRINTER_LOG(ERROR) << "Failed to start generating a print preview.";
std::move(callback).Run(/*success=*/false);
return;
}
view_manager->HandleGeneratePrintPreview(
SerializePrintSettings(std::move(settings)));
std::move(callback).Run(/*success=*/true);
}
void PrintPreviewWebcontentsManager::HandleDialogClosed(
const base::UnguessableToken& token,
HandleDialogClosedCallback callback) {
content::WebContents* webcontents = RemoveTokenMapping(token);
if (!webcontents) {
// Entry already removed, no-opt. Handles potential race condition if
// initiator crashes in the midst of closing the print dialog.
std::move(callback).Run(/*success=*/false);
return;
}
PrintViewManagerCros::FromWebContents(webcontents)
->HandlePrintPreviewRemoved();
// TODO(jimmyxgong): Address other potential failure cases when implemented.
std::move(callback).Run(/*success=*/true);
}
void PrintPreviewWebcontentsManager::RequestPrintPreview(
const base::UnguessableToken& token,
content::WebContents* webcontents,
::printing::mojom::RequestPrintPreviewParamsPtr params) {
CHECK(webcontents);
token_to_webcontents_[token] = webcontents;
print_preview_cros_delegate().RequestPrintPreview(
token, std::move(params),
base::BindOnce(
&PrintPreviewWebcontentsManager::OnRequestPrintPreviewCallback,
weak_ptr_factory_.GetWeakPtr()));
}
void PrintPreviewWebcontentsManager::PrintPreviewDone(
const base::UnguessableToken& token) {
if (!RemoveTokenMapping(token)) {
// Entry already removed, no-opt. Handles potential race condition if
// initiator crashes in the midst of closing the print dialog.
return;
}
print_preview_cros_delegate().PrintPreviewDone(
token, base::BindOnce(
&PrintPreviewWebcontentsManager::OnPrintPreviewDoneCallback,
weak_ptr_factory_.GetWeakPtr()));
}
void PrintPreviewWebcontentsManager::OnRequestPrintPreviewCallback(
bool success) {
if (!success) {
PRINTER_LOG(ERROR)
<< "PrintPreviewCros failed to request print preview dialog.";
}
}
void PrintPreviewWebcontentsManager::OnPrintPreviewDoneCallback(bool success) {
if (!success) {
PRINTER_LOG(ERROR) << "PrintPreviewCros failed to close print dialog";
}
}
content::WebContents* PrintPreviewWebcontentsManager::RemoveTokenMapping(
const base::UnguessableToken& token) {
// Confirm mappings exist.
const auto found_content = token_to_webcontents_.find(token);
if (found_content == token_to_webcontents_.end()) {
return nullptr;
}
// Remove webcontents mappings.
content::WebContents* webcontents = found_content->second;
token_to_webcontents_.erase(found_content->first);
return webcontents;
}
void PrintPreviewWebcontentsManager::SetPrintPreviewCrosDelegateForTesting(
crosapi::mojom::PrintPreviewCrosDelegate* delegate) {
g_delegate_instance_for_testing = delegate;
}
} // namespace chromeos
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