Live Preview (#119)

Live preview mode is here
2022-11-18 16:04:37 +01:00
parent c9713bf52b
commit 24c17a793f
42 changed files with 1502 additions and 183 deletions
@@ -0,0 +1,45 @@
+import {
+  Decoration,
+  DecorationSet,
+  EditorView,
+  ViewPlugin,
+  ViewUpdate,
+} from "../deps.ts";
+import {
+  invisibleDecoration,
+  isCursorInRange,
+  iterateTreeInVisibleRanges,
+} from "./util.ts";
+
+class BlockquotePlugin {
+  decorations: DecorationSet = Decoration.none;
+  constructor(view: EditorView) {
+    this.decorations = this.decorateLists(view);
+  }
+  update(update: ViewUpdate) {
+    if (update.docChanged || update.viewportChanged || update.selectionSet) {
+      this.decorations = this.decorateLists(update.view);
+    }
+  }
+  private decorateLists(view: EditorView) {
+    const widgets: any[] = [];
+    iterateTreeInVisibleRanges(view, {
+      enter: ({ type, from, to }) => {
+        if (isCursorInRange(view.state, [from, to])) return;
+        if (type.name === "QuoteMark") {
+          widgets.push(invisibleDecoration.range(from, to));
+          widgets.push(
+            Decoration.line({ class: "sb-blockquote-outside" }).range(from),
+          );
+        }
+      },
+    });
+    return Decoration.set(widgets, true);
+  }
+}
+export const blockquotePlugin = ViewPlugin.fromClass(
+  BlockquotePlugin,
+  {
+    decorations: (v) => v.decorations,
+  },
+);