NEW Let SiteConfig be previewable

silverstripe · Oct 7, 2022 · 458f5dd · 458f5dd
1 parent c900bc7
commit 458f5dd
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Showing 3 changed files with 24 additions and 9 deletions.
diff --git a/code/SiteConfigLeftAndMain.php b/code/SiteConfigLeftAndMain.php
@@ -10,6 +10,7 @@
 use SilverStripe\Forms\HiddenField;
 use SilverStripe\Forms\LiteralField;
 use SilverStripe\ORM\ArrayList;
+use SilverStripe\ORM\CMSPreviewable;
 use SilverStripe\ORM\DataObject;
 use SilverStripe\ORM\ValidationResult;
 use SilverStripe\Versioned\RecursivePublishable;
@@ -79,10 +80,15 @@ public function getEditForm($id = null, $fields = null)
         $home = Director::absoluteBaseURL();
         $fields->push(new HiddenField('PreviewURL', 'Preview URL', $home));
 
-        // Added in-line to the form, but plucked into different view by LeftAndMain.Preview.js upon load
-        /** @skipUpgrade */
-        $fields->push($navField = new LiteralField('SilverStripeNavigator', $this->getSilverStripeNavigator()));
-        $navField->setAllowHTML(true);
+        if ($siteConfig instanceof CMSPreviewable || $siteConfig->has_extension(CMSPreviewable::class)) {
+            // Added in-line to the form, but plucked into different view by LeftAndMain.Preview.js upon load
+            /** @skipUpgrade */
+            $fields->push($navField = new LiteralField(
+                'SilverStripeNavigator',
+                $this->getSilverStripeNavigator($siteConfig)
+            ));
+            $navField->setAllowHTML(true);
+        }
 
         // Retrieve validator, if one has been setup (e.g. via data extensions).
         if ($siteConfig->hasMethod("getCMSValidator")) {
@@ -122,6 +128,12 @@ public function getEditForm($id = null, $fields = null)
         $form->loadDataFrom($siteConfig);
         $form->setTemplate($this->getTemplatesWithSuffix('_EditForm'));
 
+
+        // Announce the capability so the frontend can decide whether to allow preview or not.
+        if ($siteConfig instanceof CMSPreviewable || $siteConfig->has_extension(CMSPreviewable::class)) {
+            $form->addExtraClass('cms-previewable');
+        }
+
         // Use <button> to allow full jQuery UI styling
         $actions = $actions->dataFields();
         if ($actions) {

diff --git a/templates/SilverStripe/SiteConfig/Includes/SiteConfigLeftAndMain_EditForm.ss b/templates/SilverStripe/SiteConfig/Includes/SiteConfigLeftAndMain_EditForm.ss
@@ -27,6 +27,14 @@
 					<%t SilverStripe\\Admin\\LeftAndMain.PreviewButton 'Preview' %> &raquo;
 				</a>
 			<% end_if %>
+
+			<% if $hasExtraClass('cms-previewable') %>
+				<% if $Actions.last.id == 'Form_ItemEditForm_RightGroup' %>
+					<% include SilverStripe\\Admin\\LeftAndMain_ViewModeSelector SelectID="preview-mode-dropdown-in-content", ExtraClass="ml-0" %>
+				<% else %>
+					<% include SilverStripe\\Admin\\LeftAndMain_ViewModeSelector SelectID="preview-mode-dropdown-in-content", ExtraClass="ml-auto" %>
+				<% end_if %>
+			<% end_if %>
 		</div>
 		<% end_if %>
 	</div>

diff --git a/templates/SilverStripe/SiteConfig/Includes/SiteConfigLeftAndMain_SilverStripeNavigator.ss b/templates/SilverStripe/SiteConfig/Includes/SiteConfigLeftAndMain_SilverStripeNavigator.ss