148 lines
4.2 KiB
C++
148 lines
4.2 KiB
C++
#pragma once
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#include <algorithm>
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#include <string>
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#include <string_view>
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#include <vector>
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#include "nf7.hh"
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#include "common/gui_dnd.hh"
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namespace nf7::gui {
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enum FileCreatePopupFlag : uint8_t {
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kNameInput = 1 << 0,
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kNameDupCheck = 1 << 1,
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};
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template <uint8_t kFlags>
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struct FileCreatePopup final {
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public:
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FileCreatePopup(std::vector<std::string>&& type_flags_and,
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std::vector<std::string>&& type_flags_or = {},
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std::string_view default_name = "new_file") noexcept :
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type_flags_and_(std::move(type_flags_and)),
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type_flags_or_(std::move(type_flags_or)),
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default_name_(default_name) {
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}
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bool Update(nf7::File& owner) noexcept {
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const auto em = ImGui::GetFontSize();
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ImGui::PushItemWidth(16*em);
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if (ImGui::IsWindowAppearing()) {
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name_ = default_name_;
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type_filter_ = "";
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}
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if constexpr (kFlags & FileCreatePopupFlag::kNameInput) {
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if (ImGui::IsWindowAppearing()) ImGui::SetKeyboardFocusHere();
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ImGui::InputText("name", &name_);
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ImGui::Spacing();
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}
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if (ImGui::BeginListBox("type", {16*em, 4*em})) {
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for (const auto& reg : nf7::File::registry()) {
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const auto& t = *reg.second;
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const auto flag_matcher =
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[&t](const auto& flag) { return t.flags().contains(flag); };
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const bool flag_and_match = std::all_of(
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type_flags_and_.begin(), type_flags_and_.end(), flag_matcher);
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const bool flag_or_match =
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type_flags_or_.empty() ||
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std::any_of(type_flags_or_.begin(), type_flags_or_.end(), flag_matcher);
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if (!flag_and_match || !flag_or_match) continue;
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const bool name_match =
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type_filter_.empty() || t.name().find(type_filter_) != std::string::npos;
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const bool sel = (type_ == &t);
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if (!name_match) {
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if (sel) type_ = nullptr;
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continue;
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}
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constexpr auto kSelectableFlags =
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ImGuiSelectableFlags_SpanAllColumns |
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ImGuiSelectableFlags_AllowItemOverlap;
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if (ImGui::Selectable(t.name().c_str(), sel, kSelectableFlags)) {
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type_ = &t;
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}
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}
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ImGui::EndListBox();
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}
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ImGui::InputTextWithHint("##type_filter", "search...", &type_filter_);
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ImGui::PopItemWidth();
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ImGui::Spacing();
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// input validation
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bool err = false;
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if (type_ == nullptr) {
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ImGui::Bullet(); ImGui::TextUnformatted("type is not selected");
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err = true;
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}
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if constexpr (kFlags & FileCreatePopupFlag::kNameInput) {
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try {
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nf7::File::Path::ValidateTerm(name_);
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} catch (Exception& e) {
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ImGui::Bullet(); ImGui::Text("invalid name: %s", e.msg().c_str());
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err = true;
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}
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if constexpr (kFlags & FileCreatePopupFlag::kNameDupCheck) {
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if (owner.Find(name_)) {
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ImGui::Bullet(); ImGui::Text("name duplicated");
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err = true;
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}
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}
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}
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bool ret = false;
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if (!err) {
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if (ImGui::Button("ok")) {
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ImGui::CloseCurrentPopup();
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ret = true;
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}
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if (ImGui::IsItemHovered()) {
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const auto path = owner.abspath().Stringify();
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if constexpr (kFlags & FileCreatePopupFlag::kNameInput) {
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ImGui::SetTooltip(
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"create %s as '%s' on '%s'", type_->name().c_str(), name_.c_str(), path.c_str());
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} else {
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ImGui::SetTooltip("create %s on '%s'", type_->name().c_str(), path.c_str());
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}
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}
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}
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return ret;
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}
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const std::string& name() const noexcept { return name_; }
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const nf7::File::TypeInfo& type() const noexcept { return *type_; }
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private:
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std::vector<std::string> type_flags_and_;
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std::vector<std::string> type_flags_or_;
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std::string default_name_;
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std::string name_;
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const nf7::File::TypeInfo* type_;
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std::string type_filter_;
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};
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inline bool InputFilePath(const char* id, std::string* path) noexcept {
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bool ret = ImGui::InputText(id, path, ImGuiInputTextFlags_EnterReturnsTrue);
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if (ImGui::BeginDragDropTarget()) {
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if (auto str = gui::dnd::Accept<std::string>(gui::dnd::kFilePath)) {
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*path = *str;
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ret = true;
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}
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ImGui::EndDragDropTarget();
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}
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return ret;
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}
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} // namespace nf7::gui
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