201 lines
5.0 KiB
C++
201 lines
5.0 KiB
C++
/* SPDX-FileCopyrightText: 2007 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup spfile
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*
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* Storage for a list of folders for history backward and forward navigation.
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*/
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#include <cstring>
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#include "BLI_listbase.h"
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#include "BLI_path_util.h"
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#include "BLI_string.h"
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#include "BKE_context.hh"
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#include "DNA_space_types.h"
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#include "ED_fileselect.hh"
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#include "MEM_guardedalloc.h"
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#include "file_intern.hh"
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/* -------------------------------------------------------------------- */
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/** \name FOLDERLIST (previous/next)
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* \{ */
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struct FolderList {
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FolderList *next, *prev;
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char *foldername;
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};
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void folderlist_popdir(ListBase *folderlist, char *dir)
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{
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const char *prev_dir;
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FolderList *folder;
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folder = static_cast<FolderList *>(folderlist->last);
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if (folder) {
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/* remove the current directory */
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MEM_freeN(folder->foldername);
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BLI_freelinkN(folderlist, folder);
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folder = static_cast<FolderList *>(folderlist->last);
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if (folder) {
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prev_dir = folder->foldername;
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BLI_strncpy(dir, prev_dir, FILE_MAXDIR);
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}
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}
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/* Delete the folder next or use set-directory directly before PREVIOUS OP. */
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}
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void folderlist_pushdir(ListBase *folderlist, const char *dir)
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{
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if (!dir[0]) {
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return;
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}
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FolderList *folder, *previous_folder;
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previous_folder = static_cast<FolderList *>(folderlist->last);
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/* check if already exists */
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if (previous_folder && previous_folder->foldername) {
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if (BLI_path_cmp(previous_folder->foldername, dir) == 0) {
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return;
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}
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}
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/* create next folder element */
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folder = MEM_new<FolderList>(__func__);
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folder->foldername = BLI_strdup(dir);
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/* add it to the end of the list */
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BLI_addtail(folderlist, folder);
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}
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const char *folderlist_peeklastdir(ListBase *folderlist)
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{
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FolderList *folder;
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if (!folderlist->last) {
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return nullptr;
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}
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folder = static_cast<FolderList *>(folderlist->last);
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return folder->foldername;
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}
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bool folderlist_clear_next(SpaceFile *sfile)
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{
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const FileSelectParams *params = ED_fileselect_get_active_params(sfile);
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FolderList *folder;
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/* if there is no folder_next there is nothing we can clear */
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if (BLI_listbase_is_empty(sfile->folders_next)) {
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return false;
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}
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/* if previous_folder, next_folder or refresh_folder operators are executed
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* it doesn't clear folder_next */
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folder = static_cast<FolderList *>(sfile->folders_prev->last);
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if ((!folder) || (BLI_path_cmp(folder->foldername, params->dir) == 0)) {
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return false;
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}
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/* eventually clear flist->folders_next */
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return true;
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}
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void folderlist_free(ListBase *folderlist)
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{
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if (folderlist) {
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LISTBASE_FOREACH (FolderList *, folder, folderlist) {
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MEM_freeN(folder->foldername);
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}
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BLI_freelistN(folderlist);
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}
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}
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static ListBase folderlist_duplicate(ListBase *folderlist)
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{
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ListBase folderlistn = {nullptr};
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BLI_duplicatelist(&folderlistn, folderlist);
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LISTBASE_FOREACH (FolderList *, folder, &folderlistn) {
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folder->foldername = (char *)MEM_dupallocN(folder->foldername);
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}
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return folderlistn;
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}
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/** \} */
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/* -------------------------------------------------------------------- */
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/** \name Folder-History (wraps/owns file list above)
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* \{ */
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static FileFolderHistory *folder_history_find(const SpaceFile *sfile, eFileBrowse_Mode browse_mode)
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{
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LISTBASE_FOREACH (FileFolderHistory *, history, &sfile->folder_histories) {
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if (history->browse_mode == browse_mode) {
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return history;
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}
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}
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return nullptr;
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}
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void folder_history_list_ensure_for_active_browse_mode(SpaceFile *sfile)
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{
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FileFolderHistory *history = folder_history_find(sfile, (eFileBrowse_Mode)sfile->browse_mode);
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if (!history) {
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history = MEM_cnew<FileFolderHistory>(__func__);
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history->browse_mode = sfile->browse_mode;
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BLI_addtail(&sfile->folder_histories, history);
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}
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sfile->folders_next = &history->folders_next;
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sfile->folders_prev = &history->folders_prev;
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}
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static void folder_history_entry_free(SpaceFile *sfile, FileFolderHistory *history)
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{
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if (sfile->folders_prev == &history->folders_prev) {
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sfile->folders_prev = nullptr;
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}
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if (sfile->folders_next == &history->folders_next) {
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sfile->folders_next = nullptr;
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}
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folderlist_free(&history->folders_prev);
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folderlist_free(&history->folders_next);
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BLI_freelinkN(&sfile->folder_histories, history);
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}
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void folder_history_list_free(SpaceFile *sfile)
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{
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LISTBASE_FOREACH_MUTABLE (FileFolderHistory *, history, &sfile->folder_histories) {
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folder_history_entry_free(sfile, history);
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}
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}
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ListBase folder_history_list_duplicate(ListBase *listbase)
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{
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ListBase histories = {nullptr};
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LISTBASE_FOREACH (FileFolderHistory *, history, listbase) {
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FileFolderHistory *history_new = static_cast<FileFolderHistory *>(MEM_dupallocN(history));
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history_new->folders_prev = folderlist_duplicate(&history->folders_prev);
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history_new->folders_next = folderlist_duplicate(&history->folders_next);
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BLI_addtail(&histories, history_new);
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}
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return histories;
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}
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/** \} */
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