From e1b502b1380c31277999df62246119e8055358bd Mon Sep 17 00:00:00 2001
From: 18alantom <2.alan.tom@gmail.com>
Date: Wed, 22 Mar 2023 22:58:36 +0530
Subject: [PATCH] refactor: remove global shortcuts, move Shortcuts - update
 injections in a few components - use Shift+Backspace for back (prevent
 clashes with the \b) - use string context for single instance components

---
 src/App.vue                                   |   6 +-
 src/components/BackLink.vue                   |  23 +-
 src/components/Report/ListReport.vue          |   8 +-
 src/components/SearchBar.vue                  |   6 +-
 src/components/ShortcutsHelper.vue            |   4 +-
 src/components/Sidebar.vue                    |   8 +-
 src/pages/ChartOfAccounts.vue                 |   8 +-
 src/pages/TemplateBuilder/TemplateBuilder.vue |  14 +-
 src/utils/injectionKeys.ts                    |   7 +-
 src/utils/misc.ts                             |   4 +
 src/utils/shortcuts.ts                        | 222 ++++++++++++++++-
 src/utils/vueUtils.ts                         | 228 +-----------------
 utils/types.ts                                |  12 +
 13 files changed, 293 insertions(+), 257 deletions(-)

diff --git a/src/App.vue b/src/App.vue
index 92041c96..11602eff 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -57,9 +57,9 @@ import { checkForUpdates } from './utils/ipcCalls';
 import { updateConfigFiles } from './utils/misc';
 import { updatePrintTemplates } from './utils/printTemplates';
 import { Search } from './utils/search';
-import { setGlobalShortcuts } from './utils/shortcuts';
+import { Shortcuts } from './utils/shortcuts';
 import { routeTo } from './utils/ui';
-import { Shortcuts, useKeys } from './utils/vueUtils';
+import { useKeys } from './utils/vueUtils';
 
 enum Screen {
   Desk = 'Desk',
@@ -102,7 +102,7 @@ export default defineComponent({
     WindowsTitleBar,
   },
   async mounted() {
-    setGlobalShortcuts(this.shortcuts as Shortcuts);
+    // setGlobalShortcuts(this.shortcuts as Shortcuts);
     this.setInitialScreen();
   },
   watch: {
diff --git a/src/components/BackLink.vue b/src/components/BackLink.vue
index 176552d7..8ed0d3b4 100644
--- a/src/components/BackLink.vue
+++ b/src/components/BackLink.vue
@@ -1,5 +1,6 @@
 <template>
   <a
+    ref="backlink"
     class="
       cursor-pointer
       font-semibold
@@ -16,6 +17,26 @@
   </a>
 </template>
 <script lang="ts">
+import { shortcutsKey } from 'src/utils/injectionKeys';
+import { ref, inject } from 'vue';
 import { defineComponent } from 'vue';
-export default defineComponent({});
+
+const COMPONENT_NAME = 'BackLink';
+
+export default defineComponent({
+  setup() {
+    return {
+      backlink: ref<HTMLAnchorElement | null>(null),
+      shortcuts: inject(shortcutsKey),
+    };
+  },
+  activated() {
+    this.shortcuts?.shift.set(COMPONENT_NAME, ['Backspace'], () => {
+      this.backlink?.click();
+    });
+  },
+  deactivated() {
+    this.shortcuts?.delete(COMPONENT_NAME);
+  },
+});
 </script>
diff --git a/src/components/Report/ListReport.vue b/src/components/Report/ListReport.vue
index 32f258ee..a27b12d1 100644
--- a/src/components/Report/ListReport.vue
+++ b/src/components/Report/ListReport.vue
@@ -88,15 +88,21 @@
 <script>
 import { Report } from 'reports/Report';
 import { isNumeric } from 'src/utils';
+import { languageDirectionKey } from 'src/utils/injectionKeys';
 import { defineComponent } from 'vue';
 import Paginator from '../Paginator.vue';
 import WithScroll from '../WithScroll.vue';
+import { inject } from 'vue';
 
 export default defineComponent({
   props: {
     report: Report,
   },
-  inject: ['languageDirection'],
+  setup() {
+    return {
+      languageDirection: inject(languageDirectionKey),
+    };
+  },
   data() {
     return {
       wconst: 8,
diff --git a/src/components/SearchBar.vue b/src/components/SearchBar.vue
index 13a91534..adbf93c1 100644
--- a/src/components/SearchBar.vue
+++ b/src/components/SearchBar.vue
@@ -213,6 +213,8 @@ import { defineComponent, inject, nextTick } from 'vue';
 import Button from './Button.vue';
 import Modal from './Modal.vue';
 
+const COMPONENT_NAME = 'SearchBar';
+
 type SchemaFilters = { value: string; label: string; index: number }[];
 
 export default defineComponent({
@@ -247,7 +249,7 @@ export default defineComponent({
     this.openModal = false;
   },
   deactivated() {
-    this.shortcuts!.delete(this);
+    this.shortcuts?.delete(COMPONENT_NAME);
   },
   methods: {
     openDocs() {
@@ -287,7 +289,7 @@ export default defineComponent({
     },
     setShortcuts() {
       for (const { shortcut, callback } of this.getShortcuts()) {
-        this.shortcuts!.pmod.set(this, [shortcut], callback);
+        this.shortcuts!.pmod.set(COMPONENT_NAME, [shortcut], callback);
       }
     },
     modKeyText(key: string): string {
diff --git a/src/components/ShortcutsHelper.vue b/src/components/ShortcutsHelper.vue
index 203e816a..eedcedee 100644
--- a/src/components/ShortcutsHelper.vue
+++ b/src/components/ShortcutsHelper.vue
@@ -20,7 +20,7 @@
               v-for="(s, i) in g.shortcuts"
               :key="g.label + ' ' + i"
               class="grid gap-4 items-start"
-              style="grid-template-columns: 6rem auto"
+              style="grid-template-columns: 8rem auto"
             >
               <ShortcutKeys class="text-base" :keys="s.shortcut" />
               <div class="whitespace-normal text-base">{{ s.description }}</div>
@@ -69,7 +69,7 @@ export default defineComponent({
             description: t`Open Quick Search`,
           },
           {
-            shortcut: [ShortcutKey.delete],
+            shortcut: [ShortcutKey.shift, ShortcutKey.delete],
             description: t`Go back to the previous page`,
           },
           {
diff --git a/src/components/Sidebar.vue b/src/components/Sidebar.vue
index 2cdd09b0..db7d3a3f 100644
--- a/src/components/Sidebar.vue
+++ b/src/components/Sidebar.vue
@@ -190,6 +190,8 @@ import Icon from './Icon.vue';
 import Modal from './Modal.vue';
 import ShortcutsHelper from './ShortcutsHelper.vue';
 
+const COMPONENT_NAME = 'Sidebar';
+
 export default defineComponent({
   emits: ['change-db-file'],
   setup() {
@@ -231,15 +233,15 @@ export default defineComponent({
       this.setActiveGroup();
     });
 
-    this.shortcuts?.shift.set(this, ['KeyH'], () => {
+    this.shortcuts?.shift.set(COMPONENT_NAME, ['KeyH'], () => {
       if (document.body === document.activeElement) {
         this.toggleSidebar();
       }
     });
-    this.shortcuts?.set(this, ['F1'], () => this.openDocumentation());
+    this.shortcuts?.set(COMPONENT_NAME, ['F1'], () => this.openDocumentation());
   },
   unmounted() {
-    this.shortcuts?.delete(this);
+    this.shortcuts?.delete(COMPONENT_NAME);
   },
   methods: {
     routeTo,
diff --git a/src/pages/ChartOfAccounts.vue b/src/pages/ChartOfAccounts.vue
index 67d4e661..85aec10f 100644
--- a/src/pages/ChartOfAccounts.vue
+++ b/src/pages/ChartOfAccounts.vue
@@ -146,12 +146,14 @@ import { isCredit } from 'models/helpers';
 import { ModelNameEnum } from 'models/types';
 import PageHeader from 'src/components/PageHeader.vue';
 import { fyo } from 'src/initFyo';
+import { languageDirectionKey } from 'src/utils/injectionKeys';
 import { docsPathMap } from 'src/utils/misc';
 import { docsPathRef } from 'src/utils/refs';
 import { openQuickEdit } from 'src/utils/ui';
 import { getMapFromList, removeAtIndex } from 'utils/index';
 import { nextTick } from 'vue';
 import Button from '../components/Button.vue';
+import { inject } from 'vue';
 import { handleErrorWithDialog } from '../errorHandling';
 
 export default {
@@ -159,6 +161,11 @@ export default {
     Button,
     PageHeader,
   },
+  setup() {
+    return {
+      languageDirection: inject(languageDirectionKey),
+    };
+  },
   data() {
     return {
       isAllCollapsed: true,
@@ -172,7 +179,6 @@ export default {
       refetchTotals: false,
     };
   },
-  inject: ['languageDirection'],
   async mounted() {
     await this.setTotalDebitAndCredit();
     fyo.doc.observer.on('sync:AccountingLedgerEntry', () => {
diff --git a/src/pages/TemplateBuilder/TemplateBuilder.vue b/src/pages/TemplateBuilder/TemplateBuilder.vue
index c2aad6bf..11f22ae2 100644
--- a/src/pages/TemplateBuilder/TemplateBuilder.vue
+++ b/src/pages/TemplateBuilder/TemplateBuilder.vue
@@ -246,6 +246,8 @@ import TemplateBuilderHint from './TemplateBuilderHint.vue';
 import TemplateEditor from './TemplateEditor.vue';
 import { inject } from 'vue';
 
+const COMPONENT_NAME = 'TemplateBuilder';
+
 export default defineComponent({
   props: { name: String },
   components: {
@@ -313,7 +315,7 @@ export default defineComponent({
   },
   deactivated(): void {
     docsPathRef.value = '';
-    this.shortcuts?.delete(this);
+    this.shortcuts?.delete(COMPONENT_NAME);
   },
   methods: {
     setShortcuts() {
@@ -321,13 +323,13 @@ export default defineComponent({
         return;
       }
 
-      this.shortcuts.ctrl.set(this, ['Enter'], this.setTemplate);
-      this.shortcuts.ctrl.set(this, ['KeyE'], this.toggleEditMode);
-      this.shortcuts.ctrl.set(this, ['KeyH'], this.toggleShowHints);
-      this.shortcuts.ctrl.set(this, ['Equal'], () =>
+      this.shortcuts.ctrl.set(COMPONENT_NAME, ['Enter'], this.setTemplate);
+      this.shortcuts.ctrl.set(COMPONENT_NAME, ['KeyE'], this.toggleEditMode);
+      this.shortcuts.ctrl.set(COMPONENT_NAME, ['KeyH'], this.toggleShowHints);
+      this.shortcuts.ctrl.set(COMPONENT_NAME, ['Equal'], () =>
         this.setScale(this.scale + 0.1)
       );
-      this.shortcuts.ctrl.set(this, ['Minus'], () =>
+      this.shortcuts.ctrl.set(COMPONENT_NAME, ['Minus'], () =>
         this.setScale(this.scale - 0.1)
       );
     },
diff --git a/src/utils/injectionKeys.ts b/src/utils/injectionKeys.ts
index c8ca1a6c..4dd208fc 100644
--- a/src/utils/injectionKeys.ts
+++ b/src/utils/injectionKeys.ts
@@ -1,6 +1,7 @@
-import { InjectionKey, Ref } from 'vue';
-import { Search } from './search';
-import type { Shortcuts, useKeys } from './vueUtils';
+import type { InjectionKey, Ref } from 'vue';
+import type { Search } from './search';
+import type { Shortcuts } from './shortcuts';
+import type { useKeys } from './vueUtils';
 
 export const languageDirectionKey = Symbol('languageDirection') as InjectionKey<
   Ref<'ltr' | 'rtl'>
diff --git a/src/utils/misc.ts b/src/utils/misc.ts
index c121bcdc..c364b684 100644
--- a/src/utils/misc.ts
+++ b/src/utils/misc.ts
@@ -163,3 +163,7 @@ export function getCreateFiltersFromListViewFilters(filters: QueryFilter) {
 
   return createFilters;
 }
+
+export function getIsMac() {
+  return navigator.userAgent.indexOf('Mac') !== -1;
+}
diff --git a/src/utils/shortcuts.ts b/src/utils/shortcuts.ts
index de9140d0..b9e1dc53 100644
--- a/src/utils/shortcuts.ts
+++ b/src/utils/shortcuts.ts
@@ -1,17 +1,221 @@
-import router from 'src/router';
-import { Shortcuts } from './vueUtils';
+import { Keys } from 'utils/types';
+import { watch } from 'vue';
+import { getIsMac } from './misc';
+import { useKeys } from './vueUtils';
+
+interface ModMap {
+  alt: boolean;
+  ctrl: boolean;
+  meta: boolean;
+  shift: boolean;
+  repeat: boolean;
+}
+
+type Mod = keyof ModMap;
+type Context = unknown;
+type ShortcutFunction = () => void;
+type ShortcutConfig = {
+  callback: ShortcutFunction;
+  propagate: boolean;
+};
+
+type ShortcutMap = Map<Context, Map<string, ShortcutConfig>>;
+
+const mods: Readonly<Mod[]> = ['alt', 'ctrl', 'meta', 'repeat', 'shift'];
+
+export class Shortcuts {
+  keys: Keys;
+  isMac: boolean;
+  contextStack: Context[];
+  shortcuts: ShortcutMap;
+  modMap: Partial<Record<Mod, boolean>>;
+
+  constructor(keys?: Keys) {
+    this.contextStack = [];
+    this.modMap = {};
+    this.keys = keys ?? useKeys();
+    this.shortcuts = new Map();
+    this.isMac = getIsMac();
+
+    watch(this.keys, (keys) => {
+      this.#trigger(keys);
+    });
+  }
+
+  #trigger(keys: Keys) {
+    const key = this.getKey(Array.from(keys.pressed), keys);
+    for (const context of this.contextStack.reverse()) {
+      const obj = this.shortcuts.get(context)?.get(key);
+      if (!obj) {
+        continue;
+      }
+
+      obj.callback();
+      if (!obj.propagate) {
+        break;
+      }
+    }
+  }
 
-export function setGlobalShortcuts(shortcuts: Shortcuts) {
   /**
-   * PMod              : if macOS then Meta (⌘) else Ctrl, both Left and Right
+   * Check if a context is present or if a shortcut
+   * is present in a context.
    *
-   * Backspace         : Go to the previous page
+   *
+   * @param context context in which the shortcut is to be checked
+   * @param shortcut shortcut that is to be checked
+   * @returns
    */
-  shortcuts.set(window, ['Backspace'], async () => {
-    if (document.body !== document.activeElement) {
+  has(context: Context, shortcut?: string[]) {
+    if (!shortcut) {
+      return this.shortcuts.has(context);
+    }
+
+    const contextualShortcuts = this.shortcuts.get(context);
+    if (!contextualShortcuts) {
+      return false;
+    }
+
+    const key = this.getKey(shortcut);
+    return contextualShortcuts.has(key);
+  }
+
+  /**
+   * Assign a function to a shortcut in a given context.
+   *
+   * @param context context object to which the shortcut belongs
+   * @param shortcut keyboard event codes used as shortcut chord
+   * @param callback function to be called when the shortcut is pressed
+   * @param propagate whether to check and executs shortcuts in parent contexts
+   * @param removeIfSet whether to delete the set shortcut
+   */
+  set(
+    context: Context,
+    shortcut: string[],
+    callback: ShortcutFunction,
+    propagate: boolean = false,
+    removeIfSet: boolean = true
+  ) {
+    if (!this.shortcuts.has(context)) {
+      this.shortcuts.set(context, new Map());
+    }
+    const contextualShortcuts = this.shortcuts.get(context)!;
+
+    const key = this.getKey(shortcut);
+    if (removeIfSet) {
+      contextualShortcuts.delete(key);
+    }
+
+    if (contextualShortcuts.has(key)) {
+      throw new Error(`Shortcut ${key} already exists.`);
+    }
+
+    this.#pushContext(context);
+    contextualShortcuts.set(key, { callback, propagate });
+  }
+
+  /**
+   * Either delete a single shortcut or all the shortcuts in
+   * a given context.
+   *
+   * @param context context from which the shortcut is to be removed
+   * @param shortcut shortcut that is to be deleted
+   * @returns boolean indicating success
+   */
+  delete(context: Context, shortcut?: string[]): boolean {
+    if (!shortcut) {
+      this.#removeContext(context);
+      return this.shortcuts.delete(context);
+    }
+
+    const contextualShortcuts = this.shortcuts.get(context);
+    if (!contextualShortcuts) {
+      return false;
+    }
+
+    const key = this.getKey(shortcut);
+    return contextualShortcuts.delete(key);
+  }
+
+  /**
+   * Converts shortcuts list and modMap to a string to be
+   * used as a shortcut key.
+   *
+   * @param shortcut array of shortcut keys
+   * @param modMap boolean map of mod keys to be used
+   * @returns string to be used as the shortcut Map key
+   */
+  getKey(shortcut: string[], modMap?: Partial<ModMap>): string {
+    const _modMap = modMap || this.modMap;
+    this.modMap = {};
+
+    const shortcutString = shortcut.sort().join('+');
+    const modString = mods.filter((k) => _modMap[k]).join('+');
+    if (shortcutString && modString) {
+      return modString + '+' + shortcutString;
+    }
+
+    if (!modString) {
+      return shortcutString;
+    }
+
+    if (!shortcutString) {
+      return modString;
+    }
+
+    return '';
+  }
+
+  #pushContext(context: Context) {
+    this.#removeContext(context);
+    this.contextStack.push(context);
+  }
+
+  #removeContext(context: Context) {
+    const index = this.contextStack.indexOf(context);
+    if (index === -1) {
       return;
     }
 
-    router.back();
-  });
+    this.contextStack = [
+      this.contextStack.slice(0, index),
+      this.contextStack.slice(index + 1),
+    ].flat();
+  }
+
+  /**
+   * Shortcut Modifiers
+   */
+  get alt() {
+    this.modMap['alt'] = true;
+    return this;
+  }
+
+  get ctrl() {
+    this.modMap['ctrl'] = true;
+    return this;
+  }
+
+  get meta() {
+    this.modMap['meta'] = true;
+    return this;
+  }
+
+  get shift() {
+    this.modMap['shift'] = true;
+    return this;
+  }
+
+  get repeat() {
+    this.modMap['repeat'] = true;
+    return this;
+  }
+
+  get pmod() {
+    if (this.isMac) {
+      return this.meta;
+    }
+
+    return this.ctrl;
+  }
 }
diff --git a/src/utils/vueUtils.ts b/src/utils/vueUtils.ts
index 550585b0..08ad93bc 100644
--- a/src/utils/vueUtils.ts
+++ b/src/utils/vueUtils.ts
@@ -1,226 +1,6 @@
+import { Keys } from 'utils/types';
 import { onMounted, onUnmounted, reactive, ref, watch } from 'vue';
-
-interface ModMap {
-  alt: boolean;
-  ctrl: boolean;
-  meta: boolean;
-  shift: boolean;
-  repeat: boolean;
-}
-
-type Mod = keyof ModMap;
-
-interface Keys extends ModMap {
-  pressed: Set<string>;
-}
-
-type Context = unknown;
-type ShortcutFunction = () => void;
-type ShortcutConfig = {
-  callback: ShortcutFunction;
-  propagate: boolean;
-};
-
-type ShortcutMap = Map<Context, Map<string, ShortcutConfig>>;
-
-const mods: Readonly<Mod[]> = ['alt', 'ctrl', 'meta', 'repeat', 'shift'];
-
-export class Shortcuts {
-  keys: Keys;
-  isMac: boolean;
-  contextStack: Context[];
-  shortcuts: ShortcutMap;
-  modMap: Partial<Record<Mod, boolean>>;
-
-  constructor(keys?: Keys) {
-    this.contextStack = [];
-    this.modMap = {};
-    this.keys = keys ?? useKeys();
-    this.shortcuts = new Map();
-    this.isMac = getIsMac();
-
-    watch(this.keys, (keys) => {
-      this.#trigger(keys);
-    });
-  }
-
-  #trigger(keys: Keys) {
-    const key = this.getKey(Array.from(keys.pressed), keys);
-    for (const context of this.contextStack.reverse()) {
-      const obj = this.shortcuts.get(context)?.get(key);
-      if (!obj) {
-        continue;
-      }
-
-      obj.callback();
-      if (!obj.propagate) {
-        break;
-      }
-    }
-  }
-
-  /**
-   * Check if a context is present or if a shortcut
-   * is present in a context.
-   *
-   *
-   * @param context context in which the shortcut is to be checked
-   * @param shortcut shortcut that is to be checked
-   * @returns
-   */
-  has(context: Context, shortcut?: string[]) {
-    if (!shortcut) {
-      return this.shortcuts.has(context);
-    }
-
-    const contextualShortcuts = this.shortcuts.get(context);
-    if (!contextualShortcuts) {
-      return false;
-    }
-
-    const key = this.getKey(shortcut);
-    return contextualShortcuts.has(key);
-  }
-
-  /**
-   * Assign a function to a shortcut in a given context.
-   *
-   * @param context context object to which the shortcut belongs
-   * @param shortcut keyboard event codes used as shortcut chord
-   * @param callback function to be called when the shortcut is pressed
-   * @param propagate whether to check and executs shortcuts in parent contexts
-   * @param removeIfSet whether to delete the set shortcut
-   */
-  set(
-    context: Context,
-    shortcut: string[],
-    callback: ShortcutFunction,
-    propagate: boolean = false,
-    removeIfSet: boolean = true
-  ) {
-    if (!this.shortcuts.has(context)) {
-      this.shortcuts.set(context, new Map());
-    }
-    const contextualShortcuts = this.shortcuts.get(context)!;
-
-    const key = this.getKey(shortcut);
-    if (removeIfSet) {
-      contextualShortcuts.delete(key);
-    }
-
-    if (contextualShortcuts.has(key)) {
-      throw new Error(`Shortcut ${key} already exists.`);
-    }
-
-    this.#pushContext(context);
-    contextualShortcuts.set(key, { callback, propagate });
-  }
-
-  /**
-   * Either delete a single shortcut or all the shortcuts in
-   * a given context.
-   *
-   * @param context context from which the shortcut is to be removed
-   * @param shortcut shortcut that is to be deleted
-   * @returns boolean indicating success
-   */
-  delete(context: Context, shortcut?: string[]): boolean {
-    if (!shortcut) {
-      this.#removeContext(context);
-      return this.shortcuts.delete(context);
-    }
-
-    const contextualShortcuts = this.shortcuts.get(context);
-    if (!contextualShortcuts) {
-      return false;
-    }
-
-    const key = this.getKey(shortcut);
-    return contextualShortcuts.delete(key);
-  }
-
-  /**
-   * Converts shortcuts list and modMap to a string to be
-   * used as a shortcut key.
-   *
-   * @param shortcut array of shortcut keys
-   * @param modMap boolean map of mod keys to be used
-   * @returns string to be used as the shortcut Map key
-   */
-  getKey(shortcut: string[], modMap?: Partial<ModMap>): string {
-    const _modMap = modMap || this.modMap;
-    this.modMap = {};
-
-    const shortcutString = shortcut.sort().join('+');
-    const modString = mods.filter((k) => _modMap[k]).join('+');
-    if (shortcutString && modString) {
-      return modString + '+' + shortcutString;
-    }
-
-    if (!modString) {
-      return shortcutString;
-    }
-
-    if (!shortcutString) {
-      return modString;
-    }
-
-    return '';
-  }
-
-  #pushContext(context: Context) {
-    this.#removeContext(context);
-    this.contextStack.push(context);
-  }
-
-  #removeContext(context: Context) {
-    const index = this.contextStack.indexOf(context);
-    if (index === -1) {
-      return;
-    }
-
-    this.contextStack = [
-      this.contextStack.slice(0, index),
-      this.contextStack.slice(index + 1),
-    ].flat();
-  }
-
-  /**
-   * Shortcut Modifiers
-   */
-  get alt() {
-    this.modMap['alt'] = true;
-    return this;
-  }
-
-  get ctrl() {
-    this.modMap['ctrl'] = true;
-    return this;
-  }
-
-  get meta() {
-    this.modMap['meta'] = true;
-    return this;
-  }
-
-  get shift() {
-    this.modMap['shift'] = true;
-    return this;
-  }
-
-  get repeat() {
-    this.modMap['repeat'] = true;
-    return this;
-  }
-
-  get pmod() {
-    if (this.isMac) {
-      return this.meta;
-    }
-
-    return this.ctrl;
-  }
-}
+import { getIsMac } from './misc';
 
 export function useKeys() {
   const isMac = getIsMac();
@@ -292,7 +72,3 @@ export function useMouseLocation() {
 
   return loc;
 }
-
-function getIsMac() {
-  return navigator.userAgent.indexOf('Mac') !== -1;
-}
diff --git a/utils/types.ts b/utils/types.ts
index af9a5e20..7738c28a 100644
--- a/utils/types.ts
+++ b/utils/types.ts
@@ -54,3 +54,15 @@ export type PropertyEnum<T extends Record<string, any>> = {
 };
 
 export type TemplateFile = { file: string; template: string; modified: string };
+
+export interface Keys extends ModMap {
+  pressed: Set<string>;
+}
+
+interface ModMap {
+  alt: boolean;
+  ctrl: boolean;
+  meta: boolean;
+  shift: boolean;
+  repeat: boolean;
+}