download_offline_content_provider.cc

// Copyright 2018 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/download/download_offline_content_provider.h"

#include <memory>
#include <utility>

#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "base/functional/callback_helpers.h"
#include "base/memory/raw_ptr.h"
#include "base/strings/utf_string_conversions.h"
#include "base/task/single_thread_task_runner.h"
#include "base/time/time.h"
#include "build/build_config.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/download/offline_item_utils.h"
#include "chrome/browser/offline_items_collection/offline_content_aggregator_factory.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/thumbnail/generator/image_thumbnail_request.h"
#include "components/download/public/common/download_features.h"
#include "components/download/public/common/download_item.h"
#include "content/public/browser/browser_context.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/display/display.h"
#include "ui/display/screen.h"

#if BUILDFLAG(IS_ANDROID)
#include "base/android/build_info.h"
#include "chrome/browser/download/android/download_controller.h"
#include "chrome/browser/download/android/download_manager_bridge.h"
#include "chrome/browser/download/android/download_manager_service.h"
#include "chrome/browser/download/android/download_utils.h"
#include "chrome/browser/download/android/open_download_dialog_bridge_delegate.h"
#include "chrome/browser/download/download_prefs.h"
#include "chrome/browser/flags/android/chrome_feature_list.h"
#include "components/pdf/common/constants.h"
#include "content/public/browser/download_item_utils.h"
#include "content/public/browser/download_manager_delegate.h"
#include "content/public/common/content_features.h"
#include "ui/base/device_form_factor.h"
#endif

OfflineItemFilter;
OfflineItemState;
OfflineItemProgressUnit;
OfflineItemShareInfo;
OfflineItemVisuals;
UpdateDelta;

namespace {

// Thumbnail size used for generating thumbnails for image files.
const int kThumbnailSizeInDP = …;

// The delay to wait after loading history and before starting the check for
// externally removed downloads.
const base::TimeDelta kCheckExternallyRemovedDownloadsDelay = …;

#if BUILDFLAG(IS_ANDROID)
// Invalid system download Id.
const int kInvalidSystemDownloadId = -1;

#endif

bool ShouldShowDownloadItem(const DownloadItem* item) { … }

std::unique_ptr<OfflineItemShareInfo> CreateShareInfo(
    const DownloadItem* item) { … }

// Observes the all downloads, primrarily responsible for cleaning up the
// externally removed downloads, and notifying the provider about download
// deletions. Only used for android.
class AllDownloadObserver
    : public download::AllDownloadEventNotifier::Observer { … };

AllDownloadObserver::AllDownloadObserver(
    DownloadOfflineContentProvider* provider)
    : … { … }

AllDownloadObserver::~AllDownloadObserver() { … }

void AllDownloadObserver::OnDownloadUpdated(
    SimpleDownloadManagerCoordinator* manager,
    DownloadItem* item) { … }

void AllDownloadObserver::OnDownloadRemoved(
    SimpleDownloadManagerCoordinator* manager,
    DownloadItem* item) { … }

void AllDownloadObserver::DeleteDownloadItem(
    SimpleDownloadManagerCoordinator* manager,
    const std::string& guid) { … }

}  // namespace

DownloadOfflineContentProvider::DownloadOfflineContentProvider(
    OfflineContentAggregator* aggregator,
    const std::string& name_space)
    : … { … }

DownloadOfflineContentProvider::~DownloadOfflineContentProvider() { … }

void DownloadOfflineContentProvider::SetSimpleDownloadManagerCoordinator(
    SimpleDownloadManagerCoordinator* manager) { … }

void DownloadOfflineContentProvider::OnDownloadsInitialized(
    bool active_downloads_only) { … }

// TODO(shaktisahu) : Pass DownloadOpenSource.
void DownloadOfflineContentProvider::OpenItem(const OpenParams& open_params,
                                              const ContentId& id) { … }

void DownloadOfflineContentProvider::RemoveItem(const ContentId& id) { … }

void DownloadOfflineContentProvider::CancelDownload(const ContentId& id) { … }

void DownloadOfflineContentProvider::PauseDownload(const ContentId& id) { … }

void DownloadOfflineContentProvider::ResumeDownload(const ContentId& id) { … }

void DownloadOfflineContentProvider::GetItemById(
    const ContentId& id,
    OfflineContentProvider::SingleItemCallback callback) { … }

void DownloadOfflineContentProvider::GetAllItems(
    OfflineContentProvider::MultipleItemCallback callback) { … }

void DownloadOfflineContentProvider::GetVisualsForItem(
    const ContentId& id,
    GetVisualsOptions options,
    VisualsCallback callback) { … }

void DownloadOfflineContentProvider::GetShareInfoForItem(
    const ContentId& id,
    ShareCallback callback) { … }

void DownloadOfflineContentProvider::OnThumbnailRetrieved(
    const ContentId& id,
    VisualsCallback callback,
    const SkBitmap& bitmap) { … }

void DownloadOfflineContentProvider::RenameItem(const ContentId& id,
                                                const std::string& name,
                                                RenameCallback callback) { … }

void DownloadOfflineContentProvider::OnRenameDownloadCallbackDone(
    RenameCallback callback,
    DownloadItem* item,
    DownloadItem::DownloadRenameResult result) { … }

void DownloadOfflineContentProvider::OnManagerGoingDown(
    SimpleDownloadManagerCoordinator* manager) { … }

void DownloadOfflineContentProvider::OnDownloadStarted(DownloadItem* item) { … }

void DownloadOfflineContentProvider::OnDownloadUpdated(DownloadItem* item) { … }

void DownloadOfflineContentProvider::OnDownloadRemoved(DownloadItem* item) { … }

void DownloadOfflineContentProvider::OnProfileCreated(Profile* profile) { … }

void DownloadOfflineContentProvider::AddCompletedDownload(DownloadItem* item) { … }

void DownloadOfflineContentProvider::AddCompletedDownloadDone(
    const std::string& download_guid,
    int64_t system_download_id) { … }

DownloadItem* DownloadOfflineContentProvider::GetDownload(
    const std::string& download_guid) { … }

void DownloadOfflineContentProvider::GetAllDownloads(
    std::vector<raw_ptr<DownloadItem, VectorExperimental>>* all_items) { … }

void DownloadOfflineContentProvider::UpdateObservers(
    const OfflineItem& item,
    const std::optional<UpdateDelta>& update_delta) { … }

void DownloadOfflineContentProvider::CheckForExternallyRemovedDownloads() { … }

void DownloadOfflineContentProvider::EnsureDownloadCoreServiceStarted() { … }

void DownloadOfflineContentProvider::RunGetAllItemsCallback(
    OfflineContentProvider::MultipleItemCallback callback) { … }

void DownloadOfflineContentProvider::RunGetItemByIdCallback(
    const ContentId& id,
    OfflineContentProvider::SingleItemCallback callback) { … }
chromium/chrome/browser/download/download_offline_content_provider.cc
