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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/download/save_package_file_picker.h"
#include "base/command_line.h"
#include "base/metrics/histogram.h"
#include "base/prefs/public/pref_member.h"
#include "base/utf_string_conversions.h"
#include "chrome/browser/download/chrome_download_manager_delegate.h"
#include "chrome/browser/download/download_prefs.h"
#include "chrome/browser/platform_util.h"
#include "chrome/browser/prefs/pref_service.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/chrome_select_file_policy.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/pref_names.h"
#include "content/public/browser/download_manager.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/save_page_type.h"
#include "content/public/browser/web_contents.h"
#include "grit/generated_resources.h"
#include "ui/base/l10n/l10n_util.h"
using content::RenderProcessHost;
using content::SavePageType;
using content::WebContents;
namespace {
// If false, we don't prompt the user as to where to save the file. This
// exists only for testing.
bool g_should_prompt_for_filename = true;
// Used for mapping between SavePageType constants and the indexes above.
const SavePageType kIndexToSaveType[] = {
content::SAVE_PAGE_TYPE_UNKNOWN,
content::SAVE_PAGE_TYPE_AS_ONLY_HTML,
content::SAVE_PAGE_TYPE_AS_COMPLETE_HTML,
};
int SavePackageTypeToIndex(SavePageType type) {
for (size_t i = 0; i < arraysize(kIndexToSaveType); ++i) {
if (kIndexToSaveType[i] == type)
return i;
}
NOTREACHED();
return -1;
}
// Indexes used for specifying which element in the extensions dropdown
// the user chooses when picking a save type.
const int kSelectFileHtmlOnlyIndex = 1;
const int kSelectFileCompleteIndex = 2;
// Used for mapping between the IDS_ string identifiers and the indexes above.
const int kIndexToIDS[] = {
0, IDS_SAVE_PAGE_DESC_HTML_ONLY, IDS_SAVE_PAGE_DESC_COMPLETE,
};
void OnSavePackageDownloadCreated(
content::DownloadItem* download) {
ChromeDownloadManagerDelegate::DisableSafeBrowsing(download);
}
} // anonymous namespace
bool SavePackageFilePicker::ShouldSaveAsMHTML() const {
return can_save_as_complete_ &&
CommandLine::ForCurrentProcess()->HasSwitch(
switches::kSavePageAsMHTML);
}
SavePackageFilePicker::SavePackageFilePicker(
content::WebContents* web_contents,
const FilePath& suggested_path_const,
const FilePath::StringType& default_extension_const,
bool can_save_as_complete,
DownloadPrefs* download_prefs,
const content::SavePackagePathPickedCallback& callback)
: render_process_id_(web_contents->GetRenderProcessHost()->GetID()),
can_save_as_complete_(can_save_as_complete),
callback_(callback) {
FilePath suggested_path = suggested_path_const;
FilePath::StringType default_extension = default_extension_const;
int file_type_index = SavePackageTypeToIndex(
static_cast<SavePageType>(download_prefs->save_file_type()));
DCHECK_NE(-1, file_type_index);
ui::SelectFileDialog::FileTypeInfo file_type_info;
// TODO(benjhayden): Merge the first branch with the second when all of the
// platform-specific file selection dialog implementations fully support
// switching save-as file formats, and remove the flag/switch.
if (ShouldSaveAsMHTML()) {
default_extension = FILE_PATH_LITERAL("mhtml");
suggested_path = suggested_path.ReplaceExtension(default_extension);
} else if (can_save_as_complete) {
bool add_extra_extension = false;
FilePath::StringType extra_extension;
if (!suggested_path.Extension().empty() &&
suggested_path.Extension().compare(FILE_PATH_LITERAL("htm")) &&
suggested_path.Extension().compare(FILE_PATH_LITERAL("html"))) {
add_extra_extension = true;
extra_extension = suggested_path.Extension().substr(1);
}
static const size_t kNumberExtensions = arraysize(kIndexToIDS) - 1;
file_type_info.extensions.resize(kNumberExtensions);
file_type_info.extension_description_overrides.resize(kNumberExtensions);
// Indices into kIndexToIDS are 1-based whereas indices into
// file_type_info.extensions are 0-based. Hence the '-1's.
// If you switch these resize()/direct-assignment patterns to push_back(),
// then you risk breaking FileSelected()'s use of |index|.
file_type_info.extension_description_overrides[
kSelectFileHtmlOnlyIndex - 1] = l10n_util::GetStringUTF16(kIndexToIDS[
kSelectFileHtmlOnlyIndex]);
file_type_info.extensions[kSelectFileHtmlOnlyIndex - 1].push_back(
FILE_PATH_LITERAL("htm"));
file_type_info.extensions[kSelectFileHtmlOnlyIndex - 1].push_back(
FILE_PATH_LITERAL("html"));
if (add_extra_extension) {
file_type_info.extensions[kSelectFileHtmlOnlyIndex - 1].push_back(
extra_extension);
}
file_type_info.extension_description_overrides[
kSelectFileCompleteIndex - 1] = l10n_util::GetStringUTF16(kIndexToIDS[
kSelectFileCompleteIndex]);
file_type_info.extensions[kSelectFileCompleteIndex - 1].push_back(
FILE_PATH_LITERAL("htm"));
file_type_info.extensions[kSelectFileCompleteIndex - 1].push_back(
FILE_PATH_LITERAL("html"));
if (add_extra_extension) {
file_type_info.extensions[kSelectFileCompleteIndex - 1].push_back(
extra_extension);
}
file_type_info.include_all_files = false;
} else {
// The contents can not be saved as complete-HTML, so do not show the file
// filters.
file_type_info.extensions.resize(1);
file_type_info.extensions[0].push_back(
suggested_path.Extension());
if (!file_type_info.extensions[0][0].empty()) {
// Drop the .
file_type_info.extensions[0][0].erase(0, 1);
}
file_type_info.include_all_files = true;
file_type_index = 1;
}
if (g_should_prompt_for_filename) {
select_file_dialog_ = ui::SelectFileDialog::Create(
this, new ChromeSelectFilePolicy(web_contents));
select_file_dialog_->SelectFile(ui::SelectFileDialog::SELECT_SAVEAS_FILE,
string16(),
suggested_path,
&file_type_info,
file_type_index,
default_extension,
platform_util::GetTopLevel(
web_contents->GetNativeView()),
NULL);
} else {
// Just use 'suggested_path' instead of opening the dialog prompt.
// Go through FileSelected() for consistency.
FileSelected(suggested_path, file_type_index, NULL);
}
}
SavePackageFilePicker::~SavePackageFilePicker() {
}
void SavePackageFilePicker::SetShouldPromptUser(bool should_prompt) {
g_should_prompt_for_filename = should_prompt;
}
void SavePackageFilePicker::FileSelected(const FilePath& path,
int index,
void* unused_params) {
RenderProcessHost* process = RenderProcessHost::FromID(render_process_id_);
if (process) {
SavePageType save_type = content::SAVE_PAGE_TYPE_UNKNOWN;
PrefService* prefs = Profile::FromBrowserContext(
process->GetBrowserContext())->GetPrefs();
if (ShouldSaveAsMHTML()) {
save_type = content::SAVE_PAGE_TYPE_AS_MHTML;
} else {
// The option index is not zero-based.
DCHECK(index >= kSelectFileHtmlOnlyIndex &&
index <= kSelectFileCompleteIndex);
save_type = kIndexToSaveType[index];
if (select_file_dialog_ &&
select_file_dialog_->HasMultipleFileTypeChoices())
prefs->SetInteger(prefs::kSaveFileType, save_type);
}
UMA_HISTOGRAM_ENUMERATION("Download.SavePageType",
save_type,
content::SAVE_PAGE_TYPE_MAX);
StringPrefMember save_file_path;
save_file_path.Init(prefs::kSaveFileDefaultDirectory, prefs);
#if defined(OS_POSIX)
std::string path_string = path.DirName().value();
#elif defined(OS_WIN)
std::string path_string = WideToUTF8(path.DirName().value());
#endif
// If user change the default saving directory, we will remember it just
// like IE and FireFox.
if (!process->GetBrowserContext()->IsOffTheRecord() &&
save_file_path.GetValue() != path_string)
save_file_path.SetValue(path_string);
callback_.Run(path, save_type, base::Bind(&OnSavePackageDownloadCreated));
}
delete this;
}
void SavePackageFilePicker::FileSelectionCanceled(void* unused_params) {
delete this;
}
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