(#455) New query types to enable searching for things other than images

Author: s1hofmann

lib/query.class.ts

@@ -0,0 +1,46 @@
+type Query =
+  | {
+      id: string;
+      type: "text";
+      by: {
+        line: string | RegExp;
+      };
+    }
+  | {
+      id: string;
+      type: "text";
+      by: {
+        word: string | RegExp;
+      };
+    }
+  | {
+      id: string;
+      type: "window";
+      by: {
+        title: string | RegExp;
+      };
+    };
+
+export type TextQuery = Extract<Query, { type: "text" }>;
+
+export type WordQuery = Extract<TextQuery, { by: { word: string | RegExp } }>;
+export type LineQuery = Extract<TextQuery, { by: { line: string | RegExp } }>;
+
+export type WindowQuery = Extract<Query, { type: "window" }>;
+
+export const isWordQuery = (possibleQuery: any): possibleQuery is WordQuery => {
+  return possibleQuery?.type === "text" && possibleQuery?.by?.word != null;
+};
+export const isLineQuery = (possibleQuery: any): possibleQuery is LineQuery => {
+  return possibleQuery?.type === "text" && possibleQuery?.by?.line != null;
+};
+
+export const isTextQuery = (possibleQuery: any): possibleQuery is TextQuery => {
+  return possibleQuery?.type === "text";
+};
+
+export const isWindowQuery = (
+  possibleQuery: any
+): possibleQuery is WindowQuery => {
+  return possibleQuery?.type === "window";
+};