From e05c0f6064e8195335ef399bc2ba8acef163bcfd Mon Sep 17 00:00:00 2001
From: Martin Edenhofer <me@edenhofer.de>
Date: Wed, 7 Mar 2018 16:04:36 +0100
Subject: [PATCH] Added probing for modal dialog to prevent conflicts of more
 modal dialogs at same time.

---
 .../controllers/_application_controller.coffee  | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/app/assets/javascripts/app/controllers/_application_controller.coffee b/app/assets/javascripts/app/controllers/_application_controller.coffee
index b30d0683f..95d242233 100644
--- a/app/assets/javascripts/app/controllers/_application_controller.coffee
+++ b/app/assets/javascripts/app/controllers/_application_controller.coffee
@@ -676,6 +676,8 @@ class App.ControllerModal extends App.Controller
   closeOnAnyClick: false
   initalFormParams: {}
   initalFormParamsIgnore: false
+  showTryMax: 10
+  showTrydelay: 1000
 
   events:
     'submit form':                        'submit'
@@ -687,6 +689,7 @@ class App.ControllerModal extends App.Controller
 
   constructor: ->
     super
+    @showTryCount = 0
 
     if @authenticateRequired
       return if !@authenticateCheckRedirect()
@@ -699,6 +702,16 @@ class App.ControllerModal extends App.Controller
     if @shown
       @render()
 
+  showDelayed: =>
+    delay = =>
+      @showTryCount += 1
+      @render()
+    @delay(delay, @showTrydelay)
+
+  modalAlreadyExists: ->
+    return true if $('.modal').length > 0
+    false
+
   content: ->
     'You need to implement a one @content()!'
 
@@ -737,6 +750,10 @@ class App.ControllerModal extends App.Controller
     @el
 
   render: =>
+    if @modalAlreadyExists() && @showTryCount <= @showTryMax
+      @showDelayed()
+      return
+
     @initalFormParamsIgnore = false
 
     if @buttonSubmit is true