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// Copyright 2013 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 "content/shell/browser/shell_download_manager_delegate.h"
#if defined(TOOLKIT_GTK)
#include <gtk/gtk.h>
#endif
#if defined(OS_WIN)
#include <windows.h>
#include <commdlg.h>
#endif
#include "base/bind.h"
#include "base/command_line.h"
#include "base/file_util.h"
#include "base/logging.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/download_manager.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_contents_view.h"
#include "content/shell/browser/webkit_test_controller.h"
#include "content/shell/common/shell_switches.h"
#include "net/base/net_util.h"
#if defined(OS_WIN)
#include "ui/aura/window.h"
#include "ui/aura/window_tree_host.h"
#endif
namespace content {
ShellDownloadManagerDelegate::ShellDownloadManagerDelegate()
: download_manager_(NULL),
suppress_prompting_(false),
weak_ptr_factory_(this) {}
ShellDownloadManagerDelegate::~ShellDownloadManagerDelegate(){
if (download_manager_) {
DCHECK_EQ(static_cast<DownloadManagerDelegate*>(this),
download_manager_->GetDelegate());
download_manager_->SetDelegate(NULL);
download_manager_ = NULL;
}
}
void ShellDownloadManagerDelegate::SetDownloadManager(
DownloadManager* download_manager) {
download_manager_ = download_manager;
}
void ShellDownloadManagerDelegate::Shutdown() {
// Revoke any pending callbacks. download_manager_ et. al. are no longer safe
// to access after this point.
weak_ptr_factory_.InvalidateWeakPtrs();
download_manager_ = NULL;
}
bool ShellDownloadManagerDelegate::DetermineDownloadTarget(
DownloadItem* download,
const DownloadTargetCallback& callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
// This assignment needs to be here because even at the call to
// SetDownloadManager, the system is not fully initialized.
if (default_download_path_.empty()) {
default_download_path_ = download_manager_->GetBrowserContext()->GetPath().
Append(FILE_PATH_LITERAL("Downloads"));
}
if (!download->GetForcedFilePath().empty()) {
callback.Run(download->GetForcedFilePath(),
DownloadItem::TARGET_DISPOSITION_OVERWRITE,
DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS,
download->GetForcedFilePath());
return true;
}
FilenameDeterminedCallback filename_determined_callback =
base::Bind(&ShellDownloadManagerDelegate::OnDownloadPathGenerated,
weak_ptr_factory_.GetWeakPtr(),
download->GetId(),
callback);
BrowserThread::PostTask(
BrowserThread::FILE,
FROM_HERE,
base::Bind(&ShellDownloadManagerDelegate::GenerateFilename,
download->GetURL(),
download->GetContentDisposition(),
download->GetSuggestedFilename(),
download->GetMimeType(),
default_download_path_,
filename_determined_callback));
return true;
}
bool ShellDownloadManagerDelegate::ShouldOpenDownload(
DownloadItem* item,
const DownloadOpenDelayedCallback& callback) {
if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kDumpRenderTree) &&
WebKitTestController::Get()->IsMainWindow(item->GetWebContents()) &&
item->GetMimeType() == "text/html") {
WebKitTestController::Get()->OpenURL(
net::FilePathToFileURL(item->GetFullPath()));
}
return true;
}
void ShellDownloadManagerDelegate::GetNextId(
const DownloadIdCallback& callback) {
static uint32 next_id = DownloadItem::kInvalidId + 1;
callback.Run(next_id++);
}
// static
void ShellDownloadManagerDelegate::GenerateFilename(
const GURL& url,
const std::string& content_disposition,
const std::string& suggested_filename,
const std::string& mime_type,
const base::FilePath& suggested_directory,
const FilenameDeterminedCallback& callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
base::FilePath generated_name = net::GenerateFileName(url,
content_disposition,
std::string(),
suggested_filename,
mime_type,
"download");
if (!base::PathExists(suggested_directory))
base::CreateDirectory(suggested_directory);
base::FilePath suggested_path(suggested_directory.Append(generated_name));
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE, base::Bind(callback, suggested_path));
}
void ShellDownloadManagerDelegate::OnDownloadPathGenerated(
uint32 download_id,
const DownloadTargetCallback& callback,
const base::FilePath& suggested_path) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
if (suppress_prompting_) {
// Testing exit.
callback.Run(suggested_path, DownloadItem::TARGET_DISPOSITION_OVERWRITE,
DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS,
suggested_path.AddExtension(FILE_PATH_LITERAL(".crdownload")));
return;
}
ChooseDownloadPath(download_id, callback, suggested_path);
}
void ShellDownloadManagerDelegate::ChooseDownloadPath(
uint32 download_id,
const DownloadTargetCallback& callback,
const base::FilePath& suggested_path) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DownloadItem* item = download_manager_->GetDownload(download_id);
if (!item || (item->GetState() != DownloadItem::IN_PROGRESS))
return;
base::FilePath result;
#if defined(OS_WIN)
std::wstring file_part = base::FilePath(suggested_path).BaseName().value();
wchar_t file_name[MAX_PATH];
base::wcslcpy(file_name, file_part.c_str(), arraysize(file_name));
OPENFILENAME save_as;
ZeroMemory(&save_as, sizeof(save_as));
save_as.lStructSize = sizeof(OPENFILENAME);
save_as.hwndOwner = item->GetWebContents()->GetView()->GetNativeView()->
GetHost()->GetAcceleratedWidget();
save_as.lpstrFile = file_name;
save_as.nMaxFile = arraysize(file_name);
std::wstring directory;
if (!suggested_path.empty())
directory = suggested_path.DirName().value();
save_as.lpstrInitialDir = directory.c_str();
save_as.Flags = OFN_OVERWRITEPROMPT | OFN_EXPLORER | OFN_ENABLESIZING |
OFN_NOCHANGEDIR | OFN_PATHMUSTEXIST;
if (GetSaveFileName(&save_as))
result = base::FilePath(std::wstring(save_as.lpstrFile));
#elif defined(TOOLKIT_GTK)
GtkWidget *dialog;
gfx::NativeWindow parent_window;
std::string base_name = base::FilePath(suggested_path).BaseName().value();
parent_window = item->GetWebContents()->GetView()->GetTopLevelNativeWindow();
dialog = gtk_file_chooser_dialog_new("Save File",
parent_window,
GTK_FILE_CHOOSER_ACTION_SAVE,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_SAVE, GTK_RESPONSE_ACCEPT,
NULL);
gtk_file_chooser_set_do_overwrite_confirmation(GTK_FILE_CHOOSER(dialog),
TRUE);
gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(dialog),
base_name.c_str());
if (gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT) {
char *filename;
filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(dialog));
result = base::FilePath(filename);
g_free(filename);
}
gtk_widget_destroy(dialog);
#else
NOTIMPLEMENTED();
#endif
callback.Run(result, DownloadItem::TARGET_DISPOSITION_PROMPT,
DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS, result);
}
void ShellDownloadManagerDelegate::SetDownloadBehaviorForTesting(
const base::FilePath& default_download_path) {
default_download_path_ = default_download_path;
suppress_prompting_ = true;
}
} // namespace content
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