Addon: add file browser buttons to file/directory path settings/properties

addon/flamenco/gui.py

@@ -41,6 +41,8 @@ class FLAMENCO_PT_job_submission(bpy.types.Panel):
         col.prop(context.scene, "flamenco_job_name", text="Job Name")
         row = col.row(align=True)
         row.prop(context.scene, "flamenco_job_storage", text="Job Storage")
+        prop = row.operator("flamenco3.explore_file_path", text="", icon="WINDOW")
+        prop.path = context.scene.flamenco_job_storage
 
         layout.separator()
 
@@ -88,10 +90,19 @@ class FLAMENCO_PT_job_submission(bpy.types.Panel):
         if not setting.get("visible", True):
             return
 
+        row = layout.row(align=True)
         if setting.get("editable", True):
-            self.draw_setting_editable(layout, propgroup, setting)
+            self.draw_setting_editable(row, propgroup, setting)
         else:
-            self.draw_setting_readonly(context, layout, propgroup, setting)
+            self.draw_setting_readonly(context, row, propgroup, setting)
+
+        if str(setting.type) == "string" and str(setting.get("subtype", "")) in {
+            "dir_path",
+            "file_path",
+            "hashed_file_path",
+        }:
+            op = row.operator("flamenco3.explore_file_path", text="", icon="WINDOW")
+            op.path = getattr(propgroup, setting.key)
 
     def draw_setting_editable(
         self,
@@ -99,13 +110,12 @@ class FLAMENCO_PT_job_submission(bpy.types.Panel):
         propgroup: JobTypePropertyGroup,
         setting: _AvailableJobSetting,
     ) -> None:
-        row = layout.row(align=True)
-        row.prop(propgroup, setting.key)
+        layout.prop(propgroup, setting.key)
         setting_eval = setting.get("eval", "")
         if not setting_eval:
             return
 
-        props = row.operator("flamenco.eval_setting", text="", icon="SCRIPTPLUGINS")
+        props = layout.operator("flamenco.eval_setting", text="", icon="SCRIPTPLUGINS")
         props.setting_key = setting.key
         props.setting_eval = setting_eval
 

addon/flamenco/operators.py

@@ -305,10 +305,60 @@ class FLAMENCO_OT_submit_job(FlamencoOpMixin, bpy.types.Operator):
         return {"FINISHED"}
 
 
+class FLAMENCO3_OT_explore_file_path(bpy.types.Operator):
+    """Opens the given path in a file explorer.
+
+    If the path cannot be found, this operator tries to open its parent.
+    """
+
+    bl_idname = "flamenco3.explore_file_path"
+    bl_label = "Open in file explorer"
+    bl_description = __doc__.rstrip(".")
+
+    path: bpy.props.StringProperty(
+        name="Path", description="Path to explore", subtype="DIR_PATH"
+    )
+
+    def execute(self, context):
+        import platform
+        import pathlib
+
+        # Possibly open a parent of the path
+        to_open = pathlib.Path(self.path)
+        while to_open.parent != to_open:  # while we're not at the root
+            if to_open.exists():
+                break
+            to_open = to_open.parent
+        else:
+            self.report(
+                {"ERROR"}, "Unable to open %s or any of its parents." % self.path
+            )
+            return {"CANCELLED"}
+        to_open = str(to_open)
+
+        if platform.system() == "Windows":
+            import os
+
+            os.startfile(to_open)
+
+        elif platform.system() == "Darwin":
+            import subprocess
+
+            subprocess.Popen(["open", to_open])
+
+        else:
+            import subprocess
+
+            subprocess.Popen(["xdg-open", to_open])
+
+        return {"FINISHED"}
+
+
 classes = (
     FLAMENCO_OT_fetch_job_types,
     FLAMENCO_OT_ping_manager,
     FLAMENCO_OT_eval_setting,
     FLAMENCO_OT_submit_job,
+    FLAMENCO3_OT_explore_file_path,
 )
 register, unregister = bpy.utils.register_classes_factory(classes)