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imfilebrowser.h
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imfilebrowser.h
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#pragma once
#include <algorithm>
#include <array>
#include <cctype>
#include <cstring>
#include <filesystem>
#include <set>
#include <string>
#include <string_view>
#include <vector>
#ifndef IMGUI_VERSION
# error "include imgui.h before this header"
#endif
using ImGuiFileBrowserFlags = int;
enum ImGuiFileBrowserFlags_ : std::uint32_t
{
ImGuiFileBrowserFlags_SelectDirectory = 1 << 0, // select directory instead of regular file
ImGuiFileBrowserFlags_EnterNewFilename = 1 << 1, // allow user to enter new filename when selecting regular file
ImGuiFileBrowserFlags_NoModal = 1 << 2, // file browsing window is modal by default. specify this to use a popup window
ImGuiFileBrowserFlags_NoTitleBar = 1 << 3, // hide window title bar
ImGuiFileBrowserFlags_NoStatusBar = 1 << 4, // hide status bar at the bottom of browsing window
ImGuiFileBrowserFlags_CloseOnEsc = 1 << 5, // close file browser when pressing 'ESC'
ImGuiFileBrowserFlags_CreateNewDir = 1 << 6, // allow user to create new directory
ImGuiFileBrowserFlags_MultipleSelection = 1 << 7, // allow user to select multiple files. this will hide ImGuiFileBrowserFlags_EnterNewFilename
ImGuiFileBrowserFlags_HideRegularFiles = 1 << 8, // hide regular files when ImGuiFileBrowserFlags_SelectDirectory is enabled
ImGuiFileBrowserFlags_ConfirmOnEnter = 1 << 9, // confirm selection when pressing 'ENTER'
ImGuiFileBrowserFlags_SkipItemsCausingError = 1 << 10, // when entering a new directory, any error will interrupt the process, causing the file browser to fall back to the working directory.
// with this flag, if an error is caused by a specific item in the directory, that item will be skipped, allowing the process to continue.
ImGuiFileBrowserFlags_EditPathString = 1 << 11, // allow user to directly edit the whole path string
};
namespace ImGui
{
class FileBrowser
{
public:
explicit FileBrowser(
ImGuiFileBrowserFlags flags = 0,
std::filesystem::path defaultDirectory = std::filesystem::current_path());
FileBrowser(const FileBrowser ©From);
FileBrowser &operator=(const FileBrowser ©From);
// set the window position (in pixels)
// default is centered
void SetWindowPos(int posX, int posY) noexcept;
// set the window size (in pixels)
// default is (700, 450)
void SetWindowSize(int width, int height) noexcept;
// set the window title text
void SetTitle(std::string title);
// open the browsing window
void Open();
// close the browsing window
void Close();
// the browsing window is opened or not
bool IsOpened() const noexcept;
// display the browsing window if opened
void Display();
// returns true when there is a selected filename
bool HasSelected() const noexcept;
// set current browsing directory
bool SetDirectory(const std::filesystem::path &dir = std::filesystem::current_path());
// legacy interface. use SetDirectory instead.
bool SetPwd(const std::filesystem::path &dir = std::filesystem::current_path())
{
return SetDirectory(dir);
}
// get current browsing directory
const std::filesystem::path &GetDirectory() const noexcept;
// legacy interface. use GetDirectory instead.
const std::filesystem::path &GetPwd() const noexcept
{
return GetDirectory();
}
// returns selected filename. make sense only when HasSelected returns true
// when ImGuiFileBrowserFlags_MultipleSelection is enabled, only one of
// selected filename will be returned
std::filesystem::path GetSelected() const;
// returns all selected filenames.
// when ImGuiFileBrowserFlags_MultipleSelection is enabled, use this
// instead of GetSelected
std::vector<std::filesystem::path> GetMultiSelected() const;
// set selected filename to empty
void ClearSelected();
// (optional) set file type filters. eg. { ".h", ".cpp", ".hpp" }
// ".*" matches any file types
void SetTypeFilters(const std::vector<std::string> &typeFilters);
// set currently applied type filter
// default value is 0 (the first type filter)
void SetCurrentTypeFilterIndex(int index);
// when ImGuiFileBrowserFlags_EnterNewFilename is set
// this function will pre-fill the input dialog with a filename.
void SetInputName(std::string_view input);
private:
template <class Functor>
struct ScopeGuard
{
ScopeGuard(Functor&& t) : func(std::move(t)) { }
~ScopeGuard() { func(); }
private:
Functor func;
};
struct FileRecord
{
bool isDir = false;
std::filesystem::path name;
std::string showName;
std::filesystem::path extension;
};
static std::string ToLower(const std::string &s);
void UpdateFileRecords();
void SetCurrentDirectoryUncatched(const std::filesystem::path &pwd);
bool SetCurrentDirectoryInternal(
const std::filesystem::path &dir,
const std::filesystem::path &preferredFallback);
bool IsExtensionMatched(const std::filesystem::path &extension) const;
void ClearRangeSelectionState();
static int ExpandInputBuffer(ImGuiInputTextCallbackData *callbackData);
#ifdef _WIN32
static std::uint32_t GetDrivesBitMask();
#endif
// for c++17 compatibility
#if defined(__cpp_lib_char8_t)
static std::string u8StrToStr(std::u8string s);
#endif
static std::string u8StrToStr(std::string s);
static std::filesystem::path u8StrToPath(const char *str);
int width_;
int height_;
int posX_;
int posY_;
ImGuiFileBrowserFlags flags_;
std::filesystem::path defaultDirectory_;
std::string title_;
std::string openLabel_;
bool shouldOpen_;
bool shouldClose_;
bool isOpened_;
bool isOk_;
bool isPosSet_;
std::string statusStr_;
std::vector<std::string> typeFilters_;
unsigned int typeFilterIndex_;
bool hasAllFilter_;
std::filesystem::path currentDirectory_;
std::vector<FileRecord> fileRecords_;
unsigned int rangeSelectionStart_; // enable range selection when shift is pressed
std::set<std::filesystem::path> selectedFilenames_;
std::string openNewDirLabel_;
std::vector<char> newDirNameBuffer_;
std::vector<char> inputNameBuffer_;
bool editDir_;
bool setFocusToEditDir_;
std::vector<char> currDirBuffer_;
#ifdef _WIN32
std::uint32_t drives_;
#endif
};
} // namespace ImGui
inline ImGui::FileBrowser::FileBrowser(ImGuiFileBrowserFlags flags, std::filesystem::path defaultDirectory)
: width_(700)
, height_(450)
, posX_(0)
, posY_(0)
, flags_(flags)
, defaultDirectory_(std::move(defaultDirectory))
, shouldOpen_(false)
, shouldClose_(false)
, isOpened_(false)
, isOk_(false)
, isPosSet_(false)
, rangeSelectionStart_(0)
, editDir_(false)
, setFocusToEditDir_(false)
{
assert(!((flags_ & ImGuiFileBrowserFlags_SelectDirectory) && (flags_ & ImGuiFileBrowserFlags_EnterNewFilename)) &&
"'EnterNewFilename' doesn't work when 'SelectDirectory' is enabled");
if(flags_ & ImGuiFileBrowserFlags_CreateNewDir)
{
newDirNameBuffer_.resize(8, '\0');
}
if(flags_ & ImGuiFileBrowserFlags_EnterNewFilename)
{
inputNameBuffer_.resize(8, '\0');
}
SetTitle("file browser");
SetDirectory(defaultDirectory_);
typeFilters_.clear();
typeFilterIndex_ = 0;
hasAllFilter_ = false;
#ifdef _WIN32
drives_ = GetDrivesBitMask();
#endif
}
inline ImGui::FileBrowser::FileBrowser(const FileBrowser ©From)
: FileBrowser()
{
*this = copyFrom;
}
inline ImGui::FileBrowser &ImGui::FileBrowser::operator=(
const FileBrowser ©From)
{
width_ = copyFrom.width_;
height_ = copyFrom.height_;
posX_ = copyFrom.posX_;
posY_ = copyFrom.posY_;
flags_ = copyFrom.flags_;
SetTitle(copyFrom.title_);
shouldOpen_ = copyFrom.shouldOpen_;
shouldClose_ = copyFrom.shouldClose_;
isOpened_ = copyFrom.isOpened_;
isOk_ = copyFrom.isOk_;
isPosSet_ = copyFrom.isPosSet_;
statusStr_ = "";
typeFilters_ = copyFrom.typeFilters_;
typeFilterIndex_ = copyFrom.typeFilterIndex_;
hasAllFilter_ = copyFrom.hasAllFilter_;
selectedFilenames_ = copyFrom.selectedFilenames_;
rangeSelectionStart_ = copyFrom.rangeSelectionStart_;
currentDirectory_ = copyFrom.currentDirectory_;
fileRecords_ = copyFrom.fileRecords_;
openNewDirLabel_ = copyFrom.openNewDirLabel_;
newDirNameBuffer_ = copyFrom.newDirNameBuffer_;
inputNameBuffer_ = copyFrom.inputNameBuffer_;
editDir_ = copyFrom.editDir_;
currDirBuffer_ = copyFrom.currDirBuffer_;
#ifdef _WIN32
drives_ = copyFrom.drives_;
#endif
return *this;
}
inline void ImGui::FileBrowser::SetWindowPos(int posX, int posY) noexcept
{
posX_ = posX;
posY_ = posY;
isPosSet_ = true;
}
inline void ImGui::FileBrowser::SetWindowSize(int width, int height) noexcept
{
assert(width > 0 && height > 0);
width_ = width;
height_ = height;
}
inline void ImGui::FileBrowser::SetTitle(std::string title)
{
title_ = std::move(title);
const std::string thisPtrStr = std::to_string(reinterpret_cast<size_t>(this));
openLabel_ = title_ + "##filebrowser_" + thisPtrStr;
openNewDirLabel_ = "new dir##new_dir_" + thisPtrStr;
}
inline void ImGui::FileBrowser::Open()
{
UpdateFileRecords();
ClearSelected();
statusStr_ = std::string();
shouldOpen_ = true;
shouldClose_ = false;
}
inline void ImGui::FileBrowser::Close()
{
ClearSelected();
statusStr_ = std::string();
shouldClose_ = true;
shouldOpen_ = false;
}
inline bool ImGui::FileBrowser::IsOpened() const noexcept
{
return isOpened_;
}
inline void ImGui::FileBrowser::Display()
{
PushID(this);
ScopeGuard exitThis([this]
{
shouldOpen_ = false;
shouldClose_ = false;
PopID();
});
if(shouldOpen_)
{
OpenPopup(openLabel_.c_str());
}
isOpened_ = false;
// open the popup window
if(shouldOpen_ && (flags_ & ImGuiFileBrowserFlags_NoModal))
{
if(isPosSet_)
{
SetNextWindowPos(ImVec2(static_cast<float>(posX_), static_cast<float>(posY_)));
}
SetNextWindowSize(ImVec2(static_cast<float>(width_), static_cast<float>(height_)));
}
else
{
if(isPosSet_)
{
SetNextWindowPos(ImVec2(static_cast<float>(posX_), static_cast<float>(posY_)), ImGuiCond_FirstUseEver);
}
SetNextWindowSize(ImVec2(static_cast<float>(width_), static_cast<float>(height_)), ImGuiCond_FirstUseEver);
}
if(flags_ & ImGuiFileBrowserFlags_NoModal)
{
if(!BeginPopup(openLabel_.c_str()))
{
return;
}
}
else if(!BeginPopupModal(openLabel_.c_str(), nullptr,
flags_ & ImGuiFileBrowserFlags_NoTitleBar ? ImGuiWindowFlags_NoTitleBar : 0))
{
return;
}
isOpened_ = true;
ScopeGuard endPopup([] { EndPopup(); });
std::filesystem::path newDir; bool shouldSetNewDir = false;
if(editDir_)
{
if(setFocusToEditDir_) // Automatically set the text box to be focused on appearing
{
SetKeyboardFocusHere();
}
PushItemWidth(-1);
const bool enter = InputText(
"##directory", currDirBuffer_.data(), currDirBuffer_.size(),
ImGuiInputTextFlags_CallbackResize | ImGuiInputTextFlags_EnterReturnsTrue | ImGuiInputTextFlags_AutoSelectAll,
ExpandInputBuffer, &currDirBuffer_);
PopItemWidth();
if(!IsItemActive() && !setFocusToEditDir_)
{
editDir_ = false;
}
setFocusToEditDir_ = false;
if(enter)
{
std::filesystem::path enteredDir = u8StrToPath(currDirBuffer_.data());
if(is_directory(enteredDir))
{
newDir = std::move(enteredDir);
shouldSetNewDir = true;
}
else if(is_directory(enteredDir.parent_path()))
{
newDir = enteredDir.parent_path();
shouldSetNewDir = true;
}
else
{
statusStr_ = "[" + std::string(currDirBuffer_.data()) + "] is not a valid directory";
}
}
}
else
{
// display elements in pwd
#ifdef _WIN32
const char currentDrive = static_cast<char>(currentDirectory_.c_str()[0]);
const char driveStr[] = { currentDrive, ':', '\0' };
PushItemWidth(4 * GetFontSize());
if(BeginCombo("##select_drive", driveStr))
{
ScopeGuard guard([&] { EndCombo(); });
for(int i = 0; i < 26; ++i)
{
if(!(drives_ & (1 << i)))
{
continue;
}
const char driveCh = static_cast<char>('A' + i);
const char selectableStr[] = { driveCh, ':', '\0' };
const bool selected = currentDrive == driveCh;
if(Selectable(selectableStr, selected) && !selected)
{
char newPwd[] = { driveCh, ':', '\\', '\0' };
SetDirectory(newPwd);
}
}
}
PopItemWidth();
SameLine();
#endif
int secIdx = 0, newDirLastSecIdx = -1;
for(const auto &sec : currentDirectory_)
{
#ifdef _WIN32
if(secIdx == 1)
{
++secIdx;
continue;
}
#endif
PushID(secIdx);
if(secIdx > 0)
{
SameLine();
}
if(SmallButton(u8StrToStr(sec.u8string()).c_str()))
{
newDirLastSecIdx = secIdx;
}
PopID();
++secIdx;
}
if(newDirLastSecIdx >= 0)
{
int i = 0;
std::filesystem::path dstDir;
for(const auto &sec : currentDirectory_)
{
if(i++ > newDirLastSecIdx)
{
break;
}
dstDir /= sec;
}
#ifdef _WIN32
if(newDirLastSecIdx == 0)
{
dstDir /= "\\";
}
#endif
SetDirectory(dstDir);
}
if(flags_ & ImGuiFileBrowserFlags_EditPathString)
{
SameLine();
if(SmallButton("#"))
{
const auto currDirStr = u8StrToStr(currentDirectory_.u8string());
currDirBuffer_.resize(currDirStr.size() + 1);
std::memcpy(currDirBuffer_.data(), currDirStr.data(), currDirStr.size());
currDirBuffer_.back() = '\0';
editDir_ = true;
setFocusToEditDir_ = true;
}
}
}
SameLine();
if(SmallButton("*"))
{
UpdateFileRecords();
std::set<std::filesystem::path> newSelectedFilenames;
for(auto &name : selectedFilenames_)
{
const auto it = std::find_if(
fileRecords_.begin(), fileRecords_.end(), [&](const FileRecord &record)
{
return name == record.name;
});
if(it != fileRecords_.end())
{
newSelectedFilenames.insert(name);
}
}
if((flags_ & ImGuiFileBrowserFlags_EnterNewFilename) && inputNameBuffer_[0])
{
newSelectedFilenames.insert(u8StrToPath(inputNameBuffer_.data()));
}
}
bool focusOnInputText = false;
if(flags_ & ImGuiFileBrowserFlags_CreateNewDir)
{
SameLine();
if(SmallButton("+"))
{
OpenPopup(openNewDirLabel_.c_str());
newDirNameBuffer_[0] = '\0';
}
if(BeginPopup(openNewDirLabel_.c_str()))
{
ScopeGuard endNewDirPopup([] { EndPopup(); });
InputText(
"name", newDirNameBuffer_.data(), newDirNameBuffer_.size(),
ImGuiInputTextFlags_CallbackResize, ExpandInputBuffer, &newDirNameBuffer_);
focusOnInputText |= IsItemFocused();
SameLine();
if(Button("ok") && newDirNameBuffer_[0] != '\0')
{
ScopeGuard closeNewDirPopup([] { CloseCurrentPopup(); });
if(create_directory(currentDirectory_ / u8StrToPath(newDirNameBuffer_.data())))
{
UpdateFileRecords();
}
else
{
statusStr_ = "failed to create " + std::string(newDirNameBuffer_.data());
}
}
}
}
// browse files in a child window
float reserveHeight = GetFrameHeightWithSpacing();
if(flags_ & ImGuiFileBrowserFlags_EnterNewFilename)
{
reserveHeight += GetFrameHeightWithSpacing();
}
{
BeginChild("ch", ImVec2(0, -reserveHeight), true,
(flags_ & ImGuiFileBrowserFlags_NoModal) ? ImGuiWindowFlags_AlwaysHorizontalScrollbar : 0);
ScopeGuard endChild([] { EndChild(); });
const bool shouldHideRegularFiles =
(flags_ & ImGuiFileBrowserFlags_HideRegularFiles) && (flags_ & ImGuiFileBrowserFlags_SelectDirectory);
for(unsigned int rscIndex = 0; rscIndex < fileRecords_.size(); ++rscIndex)
{
const auto &rsc = fileRecords_[rscIndex];
if(!rsc.isDir && shouldHideRegularFiles)
{
continue;
}
if(!rsc.isDir && !IsExtensionMatched(rsc.extension))
{
continue;
}
if(!rsc.name.empty() && rsc.name.c_str()[0] == '$')
{
continue;
}
const bool selected = selectedFilenames_.find(rsc.name) != selectedFilenames_.end();
if(Selectable(rsc.showName.c_str(), selected, ImGuiSelectableFlags_DontClosePopups))
{
const bool wantDir = flags_ & ImGuiFileBrowserFlags_SelectDirectory;
const bool canSelect = rsc.name != ".." && rsc.isDir == wantDir;
const bool rangeSelect =
canSelect && GetIO().KeyShift &&
rangeSelectionStart_ < fileRecords_.size() &&
(flags_ & ImGuiFileBrowserFlags_MultipleSelection) &&
IsWindowFocused(ImGuiFocusedFlags_RootAndChildWindows);
const bool multiSelect =
!rangeSelect && GetIO().KeyCtrl &&
(flags_ & ImGuiFileBrowserFlags_MultipleSelection) &&
IsWindowFocused(ImGuiFocusedFlags_RootAndChildWindows);
if(rangeSelect)
{
const unsigned int first = (std::min)(rangeSelectionStart_, rscIndex);
const unsigned int last = (std::max)(rangeSelectionStart_, rscIndex);
selectedFilenames_.clear();
for(unsigned int i = first; i <= last; ++i)
{
if(fileRecords_[i].isDir != wantDir)
{
continue;
}
if(!wantDir && !IsExtensionMatched(fileRecords_[i].extension))
{
continue;
}
selectedFilenames_.insert(fileRecords_[i].name);
}
}
else if(selected)
{
if(!multiSelect)
{
selectedFilenames_ = { rsc.name };
rangeSelectionStart_ = rscIndex;
}
else
{
selectedFilenames_.erase(rsc.name);
}
if(flags_ & ImGuiFileBrowserFlags_EnterNewFilename)
{
inputNameBuffer_[0] = '\0';
}
}
else if(canSelect)
{
if(multiSelect)
{
selectedFilenames_.insert(rsc.name);
}
else
{
selectedFilenames_ = { rsc.name };
}
if(flags_ & ImGuiFileBrowserFlags_EnterNewFilename)
{
const auto rscName = u8StrToStr(rsc.name.u8string());
if(inputNameBuffer_.size() < rscName.size() + 1)
{
inputNameBuffer_.resize(rscName.size() + 1);
}
std::memcpy(inputNameBuffer_.data(), rscName.data(), rscName.size() + 1);
}
rangeSelectionStart_ = rscIndex;
}
else
{
if(!multiSelect)
{
selectedFilenames_.clear();
}
}
}
if(IsItemClicked(0) && IsMouseDoubleClicked(0))
{
if(rsc.isDir)
{
shouldSetNewDir = true;
newDir = (rsc.name != "..") ? (currentDirectory_ / rsc.name) : currentDirectory_.parent_path();
}
else if(!(flags_ & ImGuiFileBrowserFlags_SelectDirectory))
{
selectedFilenames_ = { rsc.name };
isOk_ = true;
CloseCurrentPopup();
}
}
else if(IsKeyPressed(ImGuiKey_GamepadFaceDown) && IsItemHovered())
{
if(rsc.isDir)
{
shouldSetNewDir = true;
newDir = (rsc.name != "..") ? (currentDirectory_ / rsc.name) : currentDirectory_.parent_path();
SetKeyboardFocusHere(-1);
}
else if(!(flags_ & ImGuiFileBrowserFlags_SelectDirectory))
{
selectedFilenames_ = { rsc.name };
isOk_ = true;
CloseCurrentPopup();
}
}
}
}
if(shouldSetNewDir)
{
SetDirectory(newDir);
}
if(flags_ & ImGuiFileBrowserFlags_EnterNewFilename)
{
PushID(this);
ScopeGuard popTextID([] { PopID(); });
PushItemWidth(-1);
if(InputText(
"", inputNameBuffer_.data(), inputNameBuffer_.size(),
ImGuiInputTextFlags_CallbackResize, ExpandInputBuffer, &inputNameBuffer_) && inputNameBuffer_[0] != '\0')
{
selectedFilenames_ = { u8StrToPath(inputNameBuffer_.data()) };
}
focusOnInputText |= IsItemFocused();
PopItemWidth();
}
if(!focusOnInputText && !editDir_)
{
const bool selectAll = (flags_ & ImGuiFileBrowserFlags_MultipleSelection) &&
IsKeyPressed(ImGuiKey_A) && (IsKeyDown(ImGuiKey_LeftCtrl) ||
IsKeyDown(ImGuiKey_RightCtrl));
if(selectAll)
{
const bool needDir = flags_ & ImGuiFileBrowserFlags_SelectDirectory;
selectedFilenames_.clear();
for(size_t i = 1; i < fileRecords_.size(); ++i)
{
auto &record = fileRecords_[i];
if(record.isDir == needDir &&
(needDir || IsExtensionMatched(record.extension)))
{
selectedFilenames_.insert(record.name);
}
}
}
}
const bool isEnterPressed =
(flags_ & ImGuiFileBrowserFlags_ConfirmOnEnter) &&
IsWindowFocused(ImGuiFocusedFlags_RootAndChildWindows) &&
IsKeyPressed(ImGuiKey_Enter);
if(!(flags_ & ImGuiFileBrowserFlags_SelectDirectory))
{
if((Button(" ok ") || isEnterPressed) && !selectedFilenames_.empty())
{
isOk_ = true;
CloseCurrentPopup();
}
}
else
{
if(Button(" ok ") || isEnterPressed)
{
isOk_ = true;
CloseCurrentPopup();
}
}
SameLine();
const bool shouldClose =
Button("cancel") || shouldClose_ ||
((flags_ & ImGuiFileBrowserFlags_CloseOnEsc) &&
IsWindowFocused(ImGuiFocusedFlags_RootAndChildWindows) &&
IsKeyPressed(ImGuiKey_Escape));
if(shouldClose)
{
CloseCurrentPopup();
}
if(!statusStr_.empty() && !(flags_ & ImGuiFileBrowserFlags_NoStatusBar))
{
SameLine();
Text("%s", statusStr_.c_str());
}
if(!typeFilters_.empty())
{
SameLine();
PushItemWidth(8 * GetFontSize());
if(BeginCombo(
"##type_filters", typeFilters_[typeFilterIndex_].c_str()))
{
ScopeGuard guard([&] { EndCombo(); });
for(size_t i = 0; i < typeFilters_.size(); ++i)
{
bool selected = i == typeFilterIndex_;
if(Selectable(typeFilters_[i].c_str(), selected) && !selected)
{
typeFilterIndex_ = static_cast<unsigned int>(i);
}
}
}
PopItemWidth();
}
}
inline bool ImGui::FileBrowser::HasSelected() const noexcept
{
return isOk_;
}
inline bool ImGui::FileBrowser::SetDirectory(const std::filesystem::path &dir)
{
const std::filesystem::path preferredFallback = this->GetDirectory();
return SetCurrentDirectoryInternal(dir, preferredFallback);
}
inline const std::filesystem::path &ImGui::FileBrowser::GetDirectory() const noexcept
{
return currentDirectory_;
}
inline std::filesystem::path ImGui::FileBrowser::GetSelected() const
{
// when isOk_ is true, selectedFilenames_ may be empty if SelectDirectory
// is enabled. return pwd in that case.
if(selectedFilenames_.empty())
{
return currentDirectory_;
}
return currentDirectory_ / *selectedFilenames_.begin();
}
inline std::vector<std::filesystem::path> ImGui::FileBrowser::GetMultiSelected() const
{
if(selectedFilenames_.empty())
{
return { currentDirectory_ };
}
std::vector<std::filesystem::path> ret;
ret.reserve(selectedFilenames_.size());
for(auto &s : selectedFilenames_)
{
ret.push_back(currentDirectory_ / s);
}
return ret;
}
inline void ImGui::FileBrowser::ClearSelected()
{
selectedFilenames_.clear();
if(flags_ & ImGuiFileBrowserFlags_EnterNewFilename)
{
inputNameBuffer_[0] = '\0';
}
isOk_ = false;
}
inline void ImGui::FileBrowser::SetTypeFilters(const std::vector<std::string> &_typeFilters)
{
typeFilters_.clear();
// remove duplicate filter names due to case unsensitivity on windows
#ifdef _WIN32
std::vector<std::string> typeFilters;
for(auto &rawFilter : _typeFilters)
{
std::string lowerFilter = ToLower(rawFilter);
const auto it = std::find(typeFilters.begin(), typeFilters.end(), lowerFilter);
if(it == typeFilters.end())
{
typeFilters.push_back(std::move(lowerFilter));
}
}
#else
auto &typeFilters = _typeFilters;
#endif
// insert auto-generated filter
hasAllFilter_ = false;
if(typeFilters.size() > 1)
{
hasAllFilter_ = true;
std::string allFiltersName = std::string();
for(size_t i = 0; i < typeFilters.size(); ++i)
{
if(typeFilters[i] == std::string_view(".*"))
{
hasAllFilter_ = false;
break;
}
if(i > 0)
{
allFiltersName += ",";
}
allFiltersName += typeFilters[i];
}
if(hasAllFilter_)
{
typeFilters_.push_back(std::move(allFiltersName));
}
}
std::copy(typeFilters.begin(), typeFilters.end(), std::back_inserter(typeFilters_));
typeFilterIndex_ = 0;
}
inline void ImGui::FileBrowser::SetCurrentTypeFilterIndex(int index)
{
typeFilterIndex_ = static_cast<unsigned int>(index);
}
inline void ImGui::FileBrowser::SetInputName(std::string_view input)
{
if(flags_ & ImGuiFileBrowserFlags_EnterNewFilename)
{
if(inputNameBuffer_.size() < input.size() + 1)
{
inputNameBuffer_.resize(input.size() + 1, '\0');
}
std::copy(input.begin(), input.end(), inputNameBuffer_.begin());
inputNameBuffer_[input.size()] = '\0';
selectedFilenames_ = { u8StrToPath(inputNameBuffer_.data()) };
}
}
inline std::string ImGui::FileBrowser::ToLower(const std::string &s)
{
std::string ret = s;
for(char &c : ret)
{
c = static_cast<char>(std::tolower(c));
}
return ret;
}
inline void ImGui::FileBrowser::UpdateFileRecords()
{
fileRecords_ = { FileRecord{ true, "..", "[D] ..", "" } };
for(auto &p : std::filesystem::directory_iterator(currentDirectory_))
{
FileRecord rcd;
try
{
if(p.is_regular_file())
{
rcd.isDir = false;
}
else if(p.is_directory())
{
rcd.isDir = true;
}