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// Copyright (c) 2011 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/ui/views/file_manager_dialog.h"
#include "base/logging.h"
#include "base/memory/ref_counted.h"
#include "base/memory/singleton.h"
#include "chrome/browser/extensions/extension_file_browser_private_api.h"
#include "chrome/browser/extensions/extension_host.h"
#include "chrome/browser/extensions/file_manager_util.h"
#include "chrome/browser/sessions/restore_tab_helper.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_list.h"
#include "chrome/browser/ui/browser_window.h"
#include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
#include "chrome/browser/ui/views/extensions/extension_dialog.h"
#include "chrome/browser/ui/views/window.h"
#include "content/browser/browser_thread.h"
#include "content/browser/tab_contents/tab_contents.h"
namespace {
const int kFileManagerWidth = 720; // pixels
const int kFileManagerHeight = 580; // pixels
// Holds references to file manager dialogs that have callbacks pending
// to their listeners.
class PendingDialog {
public:
static PendingDialog* GetInstance();
void Add(int32 tab_id, scoped_refptr<FileManagerDialog> dialog);
void Remove(int32 tab_id);
// Returns scoped_refptr because in some cases, when the listener receives
// the callback, it deletes itself and the reference to the dialog, and
// otherwise we end up calling Close on a deleted dialog.
scoped_refptr<FileManagerDialog> Find(int32 tab_id);
private:
friend struct DefaultSingletonTraits<PendingDialog>;
typedef std::map<int32, scoped_refptr<FileManagerDialog> > Map;
Map map_;
};
// static
PendingDialog* PendingDialog::GetInstance() {
return Singleton<PendingDialog>::get();
}
void PendingDialog::Add(int32 tab_id,
scoped_refptr<FileManagerDialog> dialog) {
DCHECK(dialog);
if (map_.find(tab_id) == map_.end())
map_.insert(std::make_pair(tab_id, dialog));
else
LOG(WARNING) << "Duplicate pending dialog " << tab_id;
}
void PendingDialog::Remove(int32 tab_id) {
map_.erase(tab_id);
}
scoped_refptr<FileManagerDialog> PendingDialog::Find(int32 tab_id) {
Map::const_iterator it = map_.find(tab_id);
if (it == map_.end()) {
LOG(WARNING) << "Pending dialog not found " << tab_id;
return NULL;
}
return it->second;
}
} // namespace
// Linking this implementation of SelectFileDialog::Create into the target
// selects FileManagerDialog as the dialog of choice.
// TODO(jamescook): Move this into a new file shell_dialogs_chromeos.cc
// TODO(jamescook): Change all instances of SelectFileDialog::Create to return
// scoped_refptr<SelectFileDialog> as object is ref-counted.
// static
SelectFileDialog* SelectFileDialog::Create(Listener* listener) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
return FileManagerDialog::Create(listener);
}
/////////////////////////////////////////////////////////////////////////////
// static
FileManagerDialog* FileManagerDialog::Create(Listener* listener) {
return new FileManagerDialog(listener);
}
FileManagerDialog::FileManagerDialog(Listener* listener)
: SelectFileDialog(listener),
params_(NULL),
tab_id_(0),
owner_window_(0) {
}
FileManagerDialog::~FileManagerDialog() {
if (extension_dialog_)
extension_dialog_->ObserverDestroyed();
}
bool FileManagerDialog::IsRunning(gfx::NativeWindow owner_window) const {
return owner_window_ == owner_window;
}
void FileManagerDialog::ListenerDestroyed() {
listener_ = NULL;
params_ = NULL;
PendingDialog::GetInstance()->Remove(tab_id_);
}
void FileManagerDialog::ExtensionDialogIsClosing(ExtensionDialog* dialog) {
owner_window_ = NULL;
// Release our reference to the dialog to allow it to close.
extension_dialog_ = NULL;
PendingDialog::GetInstance()->Remove(tab_id_);
}
void FileManagerDialog::Close() {
if (extension_dialog_)
extension_dialog_->Close();
PendingDialog::GetInstance()->Remove(tab_id_);
}
// static
void FileManagerDialog::OnFileSelected(
int32 tab_id, const FilePath& path, int index) {
scoped_refptr<FileManagerDialog> dialog =
PendingDialog::GetInstance()->Find(tab_id);
if (dialog) {
DCHECK(dialog->listener_);
dialog->listener_->FileSelected(path, index, dialog->params_);
dialog->Close();
}
}
// static
void FileManagerDialog::OnMultiFilesSelected(
int32 tab_id, const std::vector<FilePath>& files) {
scoped_refptr<FileManagerDialog> dialog =
PendingDialog::GetInstance()->Find(tab_id);
if (dialog) {
DCHECK(dialog->listener_);
dialog->listener_->MultiFilesSelected(files, dialog->params_);
dialog->Close();
}
}
// static
void FileManagerDialog::OnFileSelectionCanceled(int32 tab_id) {
scoped_refptr<FileManagerDialog> dialog =
PendingDialog::GetInstance()->Find(tab_id);
if (dialog) {
DCHECK(dialog->listener_);
dialog->listener_->FileSelectionCanceled(dialog->params_);
dialog->Close();
}
}
RenderViewHost* FileManagerDialog::GetRenderViewHost() {
if (extension_dialog_)
return extension_dialog_->host()->render_view_host();
return NULL;
}
void FileManagerDialog::AddPending(int32 tab_id) {
PendingDialog::GetInstance()->Add(tab_id, this);
}
bool FileManagerDialog::HasMultipleFileTypeChoicesImpl() {
return hasMultipleFileTypeChoices_;
}
void FileManagerDialog::SelectFileImpl(
Type type,
const string16& title,
const FilePath& default_path,
const FileTypeInfo* file_types,
int file_type_index,
const FilePath::StringType& default_extension,
gfx::NativeWindow owner_window,
void* params) {
if (owner_window_) {
LOG(ERROR) << "File dialog already in use!";
return;
}
// Extension background pages may not supply an owner_window.
Browser* owner_browser = (owner_window ?
BrowserList::FindBrowserWithWindow(owner_window) :
BrowserList::GetLastActive());
if (!owner_browser) {
NOTREACHED() << "Can't find owning browser";
return;
}
FilePath virtual_path;
if (!FileManagerUtil::ConvertFileToRelativeFileSystemPath(
owner_browser->profile(), default_path, &virtual_path)) {
virtual_path = FilePath();
}
hasMultipleFileTypeChoices_ =
file_types ? file_types->extensions.size() > 1 : true;
GURL file_browser_url = FileManagerUtil::GetFileBrowserUrlWithParams(
type, title, virtual_path, file_types, file_type_index,
default_extension);
TabContentsWrapper* tab = owner_browser->GetSelectedTabContentsWrapper();
ExtensionDialog* dialog = ExtensionDialog::Show(file_browser_url,
owner_browser, tab->tab_contents(),
kFileManagerWidth, kFileManagerHeight,
this /* ExtensionDialog::Observer */);
if (!dialog) {
LOG(ERROR) << "Unable to create extension dialog";
return;
}
// Connect our listener to FileDialogFunction's per-tab callbacks.
int32 tab_id = (tab ? tab->restore_tab_helper()->session_id().id() : 0);
AddPending(tab_id);
extension_dialog_ = dialog;
params_ = params;
tab_id_ = tab_id;
owner_window_ = owner_window;
}
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