/
web_dialog_helper.cc
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/
web_dialog_helper.cc
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// 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 <utility>
#include <vector>
#include "atom/browser/atom_browser_context.h"
#include "atom/browser/native_window.h"
#include "atom/browser/ui/file_dialog.h"
#include "atom/common/native_mate_converters/callback.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/file_select_listener.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 "net/base/mime_util.h"
#include "ui/shell_dialogs/selected_file_info.h"
using blink::mojom::FileChooserFileInfo;
using blink::mojom::FileChooserFileInfoPtr;
using blink::mojom::FileChooserParams;
namespace {
class FileSelectHelper : public base::RefCounted<FileSelectHelper>,
public content::WebContentsObserver {
public:
FileSelectHelper(content::RenderFrameHost* render_frame_host,
std::unique_ptr<content::FileSelectListener> listener,
blink::mojom::FileChooserParams::Mode mode)
: render_frame_host_(render_frame_host),
listener_(std::move(listener)),
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) {
v8::Isolate* isolate = v8::Isolate::GetCurrent();
v8::Local<v8::Context> context = isolate->GetCurrentContext();
atom::util::Promise promise(isolate);
v8::Local<v8::Promise> handle = promise.GetHandle();
file_dialog::ShowSaveDialog(settings, std::move(promise));
ignore_result(handle->Then(
context,
v8::Local<v8::Function>::Cast(mate::ConvertToV8(
isolate, base::Bind(&FileSelectHelper::OnSaveDialogDone, this)))));
}
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<FileChooserFileInfoPtr> file_info;
if (result) {
for (auto& path : paths) {
file_info.push_back(FileChooserFileInfo::NewNativeFile(
blink::mojom::NativeFileInfo::New(
path, path.BaseName().AsUTF16Unsafe())));
}
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(std::move(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<FileChooserFileInfoPtr> file_info;
if (result) {
file_info.push_back(
FileChooserFileInfo::NewNativeFile(blink::mojom::NativeFileInfo::New(
path, path.BaseName().AsUTF16Unsafe())));
}
OnFilesSelected(std::move(file_info));
}
void OnFilesSelected(std::vector<FileChooserFileInfoPtr> file_info) {
if (listener_) {
listener_->FileSelected(std::move(file_info), base::FilePath(), mode_);
listener_.reset();
}
render_frame_host_ = nullptr;
Release();
}
// 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_;
std::unique_ptr<content::FileSelectListener> listener_;
blink::mojom::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()))
description = "Custom Files";
DCHECK(!description.empty());
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,
std::unique_ptr<content::FileSelectListener> listener,
const blink::mojom::FileChooserParams& params) {
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, std::move(listener), params.mode));
if (params.mode == FileChooserParams::Mode::kSave) {
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 FileChooserParams::Mode::kOpenMultiple:
flags |= file_dialog::FILE_DIALOG_MULTI_SELECTIONS;
FALLTHROUGH;
case FileChooserParams::Mode::kOpen:
flags |= file_dialog::FILE_DIALOG_OPEN_FILE;
flags |= file_dialog::FILE_DIALOG_TREAT_PACKAGE_APP_AS_DIRECTORY;
break;
case FileChooserParams::Mode::kUploadFolder:
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,
std::unique_ptr<content::FileSelectListener> listener,
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<FileChooserFileInfoPtr> file_info;
while (!(path = file_enum.Next()).empty()) {
file_info.push_back(FileChooserFileInfo::NewNativeFile(
blink::mojom::NativeFileInfo::New(path, base::string16())));
}
listener->FileSelected(std::move(file_info), dir,
FileChooserParams::Mode::kUploadFolder);
}
} // namespace atom