FileDialogNative.cpp

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// ----------------------------------------------------------------------------
// -                        CloudViewer: www.cloudViewer.org                  -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.cloudViewer.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
 
// Include FileDialog here to get value of GUI_USE_NATIVE_FILE_DIALOG
#include "visualization/gui/FileDialog.h"
 
#if defined(__APPLE__) && GUI_USE_NATIVE_FILE_DIALOG
 
#include <string>
#include <vector>
 
#include "visualization/gui/Native.h"
 
namespace cloudViewer {
namespace visualization {
namespace gui {
 
struct FileDialog::Impl {
    FileDialog::Mode mode_;
    std::string path_;
    std::vector<std::pair<std::string, std::string>> filters_;
    std::function<void()> on_cancel_;
    std::function<void(const char *)> on_done_;
};
 
FileDialog::FileDialog(Mode mode, const char *title, const Theme &theme)
    : Dialog(title), impl_(new FileDialog::Impl()) {
    impl_->mode_ = mode;
}
 
FileDialog::~FileDialog() {}
 
void FileDialog::SetPath(const char *path) { impl_->path_ = path; }
 
void FileDialog::AddFilter(const char *filter, const char *description) {
    impl_->filters_.push_back(
            std::make_pair<std::string, std::string>(filter, description));
}
 
void FileDialog::SetOnCancel(std::function<void()> on_cancel) {
    impl_->on_cancel_ = on_cancel;
}
 
void FileDialog::SetOnDone(std::function<void(const char *)> on_done) {
    impl_->on_done_ = on_done;
}
 
Size FileDialog::CalcPreferredSize(const LayoutContext &context,
                                   const Constraints &constraints) const {
    return Size(0, 0);
}
 
void FileDialog::OnWillShow() {
    auto on_ok = [this](const char *path) { this->impl_->on_done_(path); };
    auto on_cancel = [this]() { this->impl_->on_cancel_(); };
    ShowNativeFileDialog(impl_->mode_, impl_->path_, impl_->filters_, on_ok,
                         on_cancel);
}
 
void FileDialog::OnDone() {}
 
}  // namespace gui
}  // namespace visualization
}  // namespace cloudViewer
 
#endif  // __APPLE__ && GUI_USE_NATIVE_FILE_DIALOG