Disable Export Button during Composite applying shader, implements #31

scenes/ui_container.tscn

@@ -134,6 +134,7 @@ offset_bottom = 32.0
 text = "Save As"
 
 [node name="SaveImageButton" type="Button" parent="Editor"]
+unique_name_in_owner = true
 layout_mode = 1
 anchors_preset = 1
 anchor_left = 1.0
@@ -141,6 +142,7 @@ anchor_right = 1.0
 offset_left = -72.0
 offset_bottom = 32.0
 grow_horizontal = 0
+disabled = true
 text = "Export"
 
 [node name="FitImageButton" type="Button" parent="Editor"]

src/Editor.gd

@@ -6,6 +6,8 @@ extends Control
 @onready var save_shader_dialog = %SaveShaderDialog
 @onready var ui_control_filesave = %SaveImageDialog
 
+@onready var save_image_button = %SaveImageButton
+
 @onready var status_indicator = %StatusIndicator
 @onready var error_msg_dialog = %ErrorMessageDialog
 
@@ -257,12 +259,14 @@ func _on_fit_image_button_pressed():
 	camera.fit_image()
 
 func _on_apply_shader_button_pressed():
+	save_image_button.disabled = true
 	Filesystem.shader_code = code_editor.text
 	var errors = await compositor.update()
 	if len(errors) > 0:
 		update_status(Status.ERROR, "\n".join(errors))
 	else:
 		update_status(Status.OKAY)
+		save_image_button.disabled = false
 
 func _on_save_image_button_pressed():
 	if Filesystem.result != null: