From 9d8613d827dd6e99e36a24c4b37012b93b5e316c Mon Sep 17 00:00:00 2001
From: Malf Furious <m@lfurio.us>
Date: Sat, 12 Jan 2019 21:19:46 -0500
Subject: Add rudimentary system for launching a modal on page load

If the $_SCROTT['AUTO_MODAL'] global is defined, it will refer to a
modal's DOM ID to be shown once the page loads.  Currently, an error
state will supersede this and display the notice modal instead.

Signed-off-by: Malf Furious <m@lfurio.us>
---
 app/class/globals.php | 24 ++++++++++++++++++++++++
 app/view/stdpage.php  |  6 ++++++
 2 files changed, 30 insertions(+)

diff --git a/app/class/globals.php b/app/class/globals.php
index e71ebc6..468ad6d 100644
--- a/app/class/globals.php
+++ b/app/class/globals.php
@@ -49,6 +49,12 @@ $_SCROTT['PAGE_OBJECT'] = NULL;
  */
 $_SCROTT['PAGE_NAME'] = "";
 
+/*
+ * The auto modal variable holds the name (DOM ID) of a modal to automatically
+ * open on page load.  The `stdpage` footer will reference this.
+ */
+$_SCROTT['AUTO_MODAL'] = "";
+
 /*
  * Get the application root path.  This is an absolute path on the server.
  */
@@ -181,6 +187,24 @@ function getPageName() : string
     return $_SCROTT['PAGE_NAME'];
 }
 
+/*
+ * Set the auto modal.
+ */
+function setAutoModal(string $autoModal) : void
+{
+    global $_SCROTT;
+    $_SCROTT['AUTO_MODAL'] = $autoModal;
+}
+
+/*
+ * Get the auto modal.
+ */
+function getAutoModal() : string
+{
+    global $_SCROTT;
+    return $_SCROTT['AUTO_MODAL'];
+}
+
 /*
  * Produce a string, but only once.  This function is useful
  * when dealing with some variable collection of markup and
diff --git a/app/view/stdpage.php b/app/view/stdpage.php
index c57a156..90e25d8 100644
--- a/app/view/stdpage.php
+++ b/app/view/stdpage.php
@@ -145,6 +145,12 @@ require_once "view/settings.php";
                 $("#noticeModal").modal("show");
             });
         </script>
+    <?php } else if (getAutoModal() != "") { ?>
+        <script type="text/javascript">
+            $(window).on('load', function () {
+                $("<?=getAutoModal()?>").modal("show");
+            });
+        </script>
     <?php } ?>
 
     <script type="text/javascript">
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