add: backlink template

resolve: #42

src/export.ts

@@ -59,7 +59,7 @@ class AddonExport extends AddonBase {
     }
     this.doUpdate();
   }
-  doUpdate(event: XULEvent) {
+  doUpdate() {
     (
       this._window.document.getElementById(
         "Knowledge4Zotero-export-embedLink"

src/knowledge.ts

@@ -415,16 +415,32 @@ class Knowledge extends AddonBase {
     const link = this.getNoteLink(linkedNote);
     const linkText = linkedNote.getNoteTitle().trim();
     let _newLine: string = "";
-    const templateText = this._Addon.template.getTemplateText("[QuickInsert]");
+    const insertTemplateText =
+      this._Addon.template.getTemplateText("[QuickInsert]");
     try {
       _newLine = new Function(
         "link, subNoteItem, noteItem",
-        "return `" + templateText + "`"
+        "return `" + insertTemplateText + "`"
       )(link, linkedNote, targetNote);
     } catch (e) {
       alert(e);
     }
     this.addLineToNote(targetNote, _newLine, lineIndex, true);
+
+    const backLinkTemplateText =
+      this._Addon.template.getTemplateText("[QuickBackLink]");
+    if (backLinkTemplateText) {
+      try {
+        _newLine = new Function(
+          "subNoteItem, noteItem",
+          "return `" + backLinkTemplateText + "`"
+        )(linkedNote, targetNote);
+      } catch (e) {
+        alert(e);
+      }
+      this.addLineToNote(linkedNote, _newLine, -1, true);
+    }
+
     this._Addon.views.showProgressWindow(
       "Better Notes",
       "Link is added to workspace"

src/template.ts

@@ -11,6 +11,11 @@ class AddonTemplate extends AddonBase {
         text: '<a href="${link}" rel="noopener noreferrer nofollow">${subNoteItem.getNoteTitle().trim() ? subNoteItem.getNoteTitle().trim() : link}</a>',
         disabled: false,
       },
+      {
+        name: "[QuickBackLink]",
+        text: '<p>Referred in <a href="${Zotero.Knowledge4Zotero.knowledge.getNoteLink(noteItem)}" rel="noopener noreferrer nofollow">${noteItem.getNoteTitle().trim() ? noteItem.getNoteTitle().trim() : "Main Note"}</a></p>',
+        disabled: false,
+      },
       {
         name: "[QuickImport]",
         text: '<blockquote>\n<p><strong>Linked Note:</strong></p>\n${subNoteLines.join("")}\n</blockquote>',