electron/atom/browser/web_dialog_helper.cc

264 lines
8.5 KiB
C++

// Copyright (c) 2014 GitHub, Inc. All rights reserved.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "atom/browser/web_dialog_helper.h"
#include <string>
#include <vector>
#include "atom/browser/atom_browser_context.h"
#include "atom/browser/native_window.h"
#include "atom/browser/ui/file_dialog.h"
#include "base/bind.h"
#include "base/files/file_enumerator.h"
#include "base/files/file_path.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/common/pref_names.h"
#include "components/prefs/pref_service.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/file_chooser_file_info.h"
#include "content/public/common/file_chooser_params.h"
#include "net/base/mime_util.h"
#include "ui/shell_dialogs/selected_file_info.h"
namespace {
class FileSelectHelper : public base::RefCounted<FileSelectHelper>,
public content::WebContentsObserver {
public:
FileSelectHelper(content::RenderFrameHost* render_frame_host,
const content::FileChooserParams::Mode& mode)
: render_frame_host_(render_frame_host), mode_(mode) {
auto web_contents = content::WebContents::FromRenderFrameHost(
render_frame_host);
content::WebContentsObserver::Observe(web_contents);
}
void ShowOpenDialog(const file_dialog::DialogSettings& settings) {
auto callback = base::Bind(&FileSelectHelper::OnOpenDialogDone, this);
file_dialog::ShowOpenDialog(settings, callback);
}
void ShowSaveDialog(const file_dialog::DialogSettings& settings) {
auto callback = base::Bind(&FileSelectHelper::OnSaveDialogDone, this);
file_dialog::ShowSaveDialog(settings, callback);
}
private:
friend class base::RefCounted<FileSelectHelper>;
~FileSelectHelper() override {}
#if defined(MAS_BUILD)
void OnOpenDialogDone(bool result, const std::vector<base::FilePath>& paths,
const std::vector<std::string>& bookmarks)
#else
void OnOpenDialogDone(bool result, const std::vector<base::FilePath>& paths)
#endif
{
std::vector<content::FileChooserFileInfo> file_info;
if (result) {
for (auto& path : paths) {
content::FileChooserFileInfo info;
info.file_path = path;
info.display_name = path.BaseName().value();
file_info.push_back(info);
}
if (render_frame_host_ && !paths.empty()) {
auto browser_context = static_cast<atom::AtomBrowserContext*>(
render_frame_host_->GetProcess()->GetBrowserContext());
browser_context->prefs()->SetFilePath(prefs::kSelectFileLastDirectory,
paths[0].DirName());
}
}
OnFilesSelected(file_info);
}
#if defined(MAS_BUILD)
void OnSaveDialogDone(bool result, const base::FilePath& path,
const std::string& bookmark)
#else
void OnSaveDialogDone(bool result, const base::FilePath& path)
#endif
{
std::vector<content::FileChooserFileInfo> file_info;
if (result) {
content::FileChooserFileInfo info;
info.file_path = path;
info.display_name = path.BaseName().value();
file_info.push_back(info);
}
OnFilesSelected(file_info);
}
void OnFilesSelected(
const std::vector<content::FileChooserFileInfo>& file_info) {
if (render_frame_host_)
render_frame_host_->FilesSelectedInChooser(file_info, mode_);
}
// content::WebContentsObserver:
void RenderFrameHostChanged(content::RenderFrameHost* old_host,
content::RenderFrameHost* new_host) override {
if (old_host == render_frame_host_)
render_frame_host_ = nullptr;
}
// content::WebContentsObserver:
void RenderFrameDeleted(content::RenderFrameHost* deleted_host) override {
if (deleted_host == render_frame_host_)
render_frame_host_ = nullptr;
}
// content::WebContentsObserver:
void WebContentsDestroyed() override {
render_frame_host_ = nullptr;
}
content::RenderFrameHost* render_frame_host_;
content::FileChooserParams::Mode mode_;
};
file_dialog::Filters GetFileTypesFromAcceptType(
const std::vector<base::string16>& accept_types) {
file_dialog::Filters filters;
if (accept_types.empty())
return filters;
std::vector<base::FilePath::StringType> extensions;
int valid_type_count = 0;
std::string description;
for (const auto& accept_type : accept_types) {
std::string ascii_type = base::UTF16ToASCII(accept_type);
auto old_extension_size = extensions.size();
if (ascii_type[0] == '.') {
// If the type starts with a period it is assumed to be a file extension,
// like `.txt`, // so we just have to add it to the list.
base::FilePath::StringType extension(
ascii_type.begin(), ascii_type.end());
// Skip the first character.
extensions.push_back(extension.substr(1));
} else {
if (ascii_type == "image/*")
description = "Image Files";
else if (ascii_type == "audio/*")
description = "Audio Files";
else if (ascii_type == "video/*")
description = "Video Files";
// For MIME Type, `audio/*, video/*, image/*
net::GetExtensionsForMimeType(ascii_type, &extensions);
}
if (extensions.size() > old_extension_size)
valid_type_count++;
}
// If no valid exntesion is added, return empty filters.
if (extensions.empty())
return filters;
filters.push_back(file_dialog::Filter());
if (valid_type_count > 1 ||
(valid_type_count == 1 && description.empty() && extensions.size() > 1))
description = "Custom Files";
filters[0].first = description;
for (const auto& extension : extensions) {
#if defined(OS_WIN)
filters[0].second.push_back(base::UTF16ToASCII(extension));
#else
filters[0].second.push_back(extension);
#endif
}
// Allow all files when extension is specified.
filters.push_back(file_dialog::Filter());
filters.back().first = "All Files";
filters.back().second.push_back("*");
return filters;
}
} // namespace
namespace atom {
WebDialogHelper::WebDialogHelper(NativeWindow* window, bool offscreen)
: window_(window),
offscreen_(offscreen),
weak_factory_(this) {
}
WebDialogHelper::~WebDialogHelper() {
}
void WebDialogHelper::RunFileChooser(
content::RenderFrameHost* render_frame_host,
const content::FileChooserParams& params) {
std::vector<content::FileChooserFileInfo> result;
file_dialog::DialogSettings settings;
settings.force_detached = offscreen_;
settings.filters = GetFileTypesFromAcceptType(params.accept_types);
settings.parent_window = window_;
settings.title = base::UTF16ToUTF8(params.title);
scoped_refptr<FileSelectHelper> file_select_helper(
new FileSelectHelper(render_frame_host, params.mode));
if (params.mode == content::FileChooserParams::Save) {
settings.default_path = params.default_file_name;
file_select_helper->ShowSaveDialog(settings);
} else {
int flags = file_dialog::FILE_DIALOG_CREATE_DIRECTORY;
switch (params.mode) {
case content::FileChooserParams::OpenMultiple:
flags |= file_dialog::FILE_DIALOG_MULTI_SELECTIONS;
case content::FileChooserParams::Open:
flags |= file_dialog::FILE_DIALOG_OPEN_FILE;
break;
case content::FileChooserParams::UploadFolder:
flags |= file_dialog::FILE_DIALOG_OPEN_DIRECTORY;
break;
default:
NOTREACHED();
}
auto* browser_context = static_cast<atom::AtomBrowserContext*>(
render_frame_host->GetProcess()->GetBrowserContext());
settings.default_path = browser_context->prefs()->GetFilePath(
prefs::kSelectFileLastDirectory).Append(params.default_file_name);
settings.properties = flags;
file_select_helper->ShowOpenDialog(settings);
}
}
void WebDialogHelper::EnumerateDirectory(content::WebContents* web_contents,
int request_id,
const base::FilePath& dir) {
int types = base::FileEnumerator::FILES |
base::FileEnumerator::DIRECTORIES |
base::FileEnumerator::INCLUDE_DOT_DOT;
base::FileEnumerator file_enum(dir, false, types);
base::FilePath path;
std::vector<base::FilePath> paths;
while (!(path = file_enum.Next()).empty())
paths.push_back(path);
web_contents->GetRenderViewHost()->DirectoryEnumerationFinished(
request_id, paths);
}
} // namespace atom