From 7beb564dd63624dce148401b2644dafa278af837 Mon Sep 17 00:00:00 2001
From: Hsieh Chin Fan <pham@topo.tw>
Date: Mon, 7 Oct 2024 17:46:19 +0800
Subject: feat: add menu item for append ref style link on selection

---
 src/MenuItem.mjs | 22 ++++++++++++++++++++++
 src/editor.mjs   | 13 +++++++++++++
 2 files changed, 35 insertions(+)

diff --git a/src/MenuItem.mjs b/src/MenuItem.mjs
index 9218b45..f5dfb5b 100644
--- a/src/MenuItem.mjs
+++ b/src/MenuItem.mjs
@@ -366,3 +366,25 @@ export const restoreCamera = map =>
     text: 'Restore Camera',
     onclick: () => map.renderer.restoreCamera()
   })
+
+/**
+ * addRefLink. replace selected text into markdown link by reference style links
+ *
+ * @param {CodeMirror} cm
+ * @param {Object[]} refLinks -- object for { ref, link }
+ */
+export const addRefLink = (cm, refLinks) =>
+  new Folder({
+    text: 'Add Link',
+    items: refLinks.map(refLink => new Item({
+      text: refLink.ref,
+      onclick: () => {
+        const selection = cm.getSelection()
+        if (selection === refLink.ref) {
+          cm.replaceSelection(`[${selection}]`)
+        } else {
+          cm.replaceSelection(`[${selection}][${refLink.ref}]`)
+        }
+      }
+    }))
+  })
diff --git a/src/editor.mjs b/src/editor.mjs
index d75d1ec..c73809f 100644
--- a/src/editor.mjs
+++ b/src/editor.mjs
@@ -991,4 +991,17 @@ const addMapRandomlyByPreset = () => {
   )
 }
 
+cm.getWrapperElement().oncontextmenu = e => {
+  if (insideCodeblockForMap(cm.getCursor())) return
+  e.preventDefault()
+
+  if (cm.getSelection() && refLinks.length > 0) {
+    menu.appendChild(menuItem.addRefLink(cm, refLinks))
+  }
+
+  if (menu.children.length > 0) {
+    menu.style.cssText = `display: block; transform: translate(${e.x}px, ${e.y}px); overflow: visible;`
+  }
+}
+
 // vim: sw=2 ts=2 foldmethod=marker foldmarker={{{,}}}
-- 
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