Merge pull request #537 from patriceac/Generate-screen-layout

Auto-scroll plugin

ui/plugins/ui/Autoscroll.plugin.js

@@ -0,0 +1,42 @@
+(function () {
+    "use strict"
+
+    var styleSheet = document.createElement("style");
+    styleSheet.textContent = `
+        .auto-scroll {
+            float: right;
+        }
+    `;
+    document.head.appendChild(styleSheet);
+    
+    const autoScrollControl = document.createElement('div');
+    autoScrollControl.innerHTML = `<input id="auto_scroll" name="auto_scroll" type="checkbox">
+                            <label for="auto_scroll">Auto-scroll</label>`
+    autoScrollControl.className = "auto-scroll"
+    clearAllPreviewsBtn.parentNode.insertBefore(autoScrollControl, clearAllPreviewsBtn.nextSibling)
+    prettifyInputs(document);
+    let autoScroll = document.querySelector("#auto_scroll")
+
+    SETTINGS_IDS_LIST.push("auto_scroll")
+    initSettings()
+
+    // observe for changes in the preview pane
+    var observer = new MutationObserver(function (mutations) {
+        mutations.forEach(function (mutation) {
+            if (mutation.target.className == 'img-batch') {
+                Autoscroll(mutation.target)
+            }
+        })
+    })
+    
+    observer.observe(document.getElementById('preview'), {
+            childList: true,
+            subtree: true
+    })
+
+    function Autoscroll(target) {
+        if (autoScroll.checked && target !== null) {
+            target.parentElement.parentElement.parentElement.scrollIntoView();
+        }
+    }
+})()