From dcb8f1393ef299df31044593a2f1a178b18d7f4f Mon Sep 17 00:00:00 2001
From: Joursoir <chat@joursoir.net>
Date: Tue, 30 Nov 2021 17:52:13 +0300
Subject: panel: make panel_cd_to()

---
 Library/UefiShellUfmCommandLib/panel.c | 32 ++++++++++++++++++++++++++++++++
 Library/UefiShellUfmCommandLib/panel.h | 10 ++++++++++
 2 files changed, 42 insertions(+)

diff --git a/Library/UefiShellUfmCommandLib/panel.c b/Library/UefiShellUfmCommandLib/panel.c
index c8d3565..c76fb55 100644
--- a/Library/UefiShellUfmCommandLib/panel.c
+++ b/Library/UefiShellUfmCommandLib/panel.c
@@ -305,3 +305,35 @@ BOOLEAN panel_move_cursor(struct panel_ctx *p, UINTN line)
 	return TRUE;
 }
 
+BOOLEAN panel_cd_to(struct panel_ctx *p, CONST CHAR16 *path)
+{
+	struct fs_array *fsa = NULL;
+	struct dir_list *dirs = NULL;
+	ASSERT(p != NULL);
+
+	if(path) {
+		dirs = scandir(path, L"*", 0);
+		if(!dirs)
+			return FALSE;
+	}
+	else {
+		fsa = scanfs();
+		if(!fsa)
+			return FALSE;
+	}
+
+	set_cwd(p, path);
+	if(p->dirs)
+		dirl_release(p->dirs);
+	if(p->fsa)
+		fsa_release(p->fsa);
+	p->dirs = dirs;
+	p->fsa = fsa;
+	p->marked = 0;
+	p->start_entry = 0;
+
+	update_marked_info(p);
+	panel_move_cursor(p, 1);
+	return TRUE;
+}
+
diff --git a/Library/UefiShellUfmCommandLib/panel.h b/Library/UefiShellUfmCommandLib/panel.h
index 1d71258..908d260 100644
--- a/Library/UefiShellUfmCommandLib/panel.h
+++ b/Library/UefiShellUfmCommandLib/panel.h
@@ -60,4 +60,14 @@ VOID panel_release(struct panel_ctx *p);
 */
 BOOLEAN panel_move_cursor(struct panel_ctx *p, UINTN line);
 
+/*
+ * Changes the working directory
+ *
+ * p: the panel on which to operate
+ * path: the pointer to path string
+ *
+ * return: FALSE upon failure and TRUE upon successful completion
+*/
+BOOLEAN panel_cd_to(struct panel_ctx *p, CONST CHAR16 *path);
+
 #endif /* UFM_PANEL_H */
-- 
cgit v1.2.3-18-g5258