From bd1326004654191b1d60eade4a179b75a20a3523 Mon Sep 17 00:00:00 2001
From: Jean Pierre Cimalando <jp-dev@inbox.ru>
Date: Mon, 22 Feb 2021 08:06:06 +0100
Subject: [PATCH] Add native helper to open a directory

---
 plugins/editor/src/editor/NativeHelpers.cpp | 29 +++++++++++++++++++--
 plugins/editor/src/editor/NativeHelpers.h   |  1 +
 plugins/editor/src/editor/NativeHelpers.mm  | 22 +++++++++-------
 3 files changed, 41 insertions(+), 11 deletions(-)

diff --git a/plugins/editor/src/editor/NativeHelpers.cpp b/plugins/editor/src/editor/NativeHelpers.cpp
index ab760d73..a8cbb255 100644
--- a/plugins/editor/src/editor/NativeHelpers.cpp
+++ b/plugins/editor/src/editor/NativeHelpers.cpp
@@ -27,14 +27,29 @@ bool openFileInExternalEditor(const char *filename)
 
     return ShellExecuteExW(&info);
 }
+
+bool openDirectoryInExplorer(const char *filename)
+{
+    std::wstring path = fs::u8path(filename).wstring();
+
+    SHELLEXECUTEINFOW info;
+    memset(&info, 0, sizeof(info));
+
+    info.cbSize = sizeof(info);
+    info.lpVerb = L"explore";
+    info.lpFile = path.c_str();
+    info.nShow = SW_SHOW;
+
+    return ShellExecuteExW(&info);
+}
 #elif defined(__APPLE__)
     // implemented in NativeHelpers.mm
 #else
 #include <gio/gio.h>
 
-bool openFileInExternalEditor(const char *filename)
+static bool openFileByMimeType(const char *filename, const char *mimetype)
 {
-    GAppInfo* appinfo = g_app_info_get_default_for_type("text/plain", FALSE);
+    GAppInfo* appinfo = g_app_info_get_default_for_type(mimetype, FALSE);
     if (!appinfo)
         return 1;
 
@@ -47,4 +62,14 @@ bool openFileInExternalEditor(const char *filename)
     g_object_unref(appinfo);
     return success == TRUE;
 }
+
+bool openFileInExternalEditor(const char *filename)
+{
+    return openFileByMimeType(filename, "text/plain");
+}
+
+bool openDirectoryInExplorer(const char *filename)
+{
+    return openFileByMimeType(filename, "inode/directory");
+}
 #endif
diff --git a/plugins/editor/src/editor/NativeHelpers.h b/plugins/editor/src/editor/NativeHelpers.h
index b9c29bb6..3ca310f7 100644
--- a/plugins/editor/src/editor/NativeHelpers.h
+++ b/plugins/editor/src/editor/NativeHelpers.h
@@ -7,3 +7,4 @@
 #pragma once
 
 bool openFileInExternalEditor(const char *filename);
+bool openDirectoryInExplorer(const char *filename);
diff --git a/plugins/editor/src/editor/NativeHelpers.mm b/plugins/editor/src/editor/NativeHelpers.mm
index 9cb8cd28..7fea74e8 100644
--- a/plugins/editor/src/editor/NativeHelpers.mm
+++ b/plugins/editor/src/editor/NativeHelpers.mm
@@ -11,20 +11,24 @@
 #import <CoreServices/CoreServices.h>
 #import <Foundation/Foundation.h>
 
-bool openFileInExternalEditor(const char *fileNameUTF8)
+static bool openFileWithApplication(const char *fileName, NSString *application)
 {
-    BOOL wasOpened = NO;
+    NSWorkspace* workspace = [NSWorkspace sharedWorkspace];
+    NSString* fileNameNs = [NSString stringWithUTF8String:fileName];
+    return [workspace openFile:fileNameNs withApplication:application] == YES;
+}
 
+bool openFileInExternalEditor(const char *fileName)
+{
     NSURL* applicationURL = (__bridge_transfer NSURL*)LSCopyDefaultApplicationURLForContentType(
         kUTTypePlainText, kLSRolesEditor, nil);
-    if (!applicationURL)
+    if (!applicationURL || ![applicationURL isFileURL])
         return false;
-    if ([applicationURL isFileURL]) {
-        NSWorkspace* workspace = [NSWorkspace sharedWorkspace];
-        NSString* fileName = [NSString stringWithUTF8String:fileNameUTF8];
-        wasOpened = [workspace openFile:fileName withApplication:[applicationURL path]];
-    }
+    return openFileWithApplication(fileName, [applicationURL path]);
+}
 
-    return wasOpened == YES;
+bool openDirectoryInExplorer(const char *fileName)
+{
+    return openFileWithApplication(fileName, @"Finder");
 }
 #endif