From 84d3af0f8d26e06efb01e47a504d510f22caa970 Mon Sep 17 00:00:00 2001
From: toasted-nutbread <toasted-nutbread@users.noreply.github.com>
Date: Thu, 14 Jan 2021 20:56:18 -0500
Subject: Hotkeys (#1236)

* Set up hotkey inputs

* Improve key display

* Add setInput

* Add KeyboardShortcutController

* Update how display handles hotkeys
---
 ext/mixed/js/display.js | 50 ++++++++++++++++++++++---------------------------
 1 file changed, 22 insertions(+), 28 deletions(-)

(limited to 'ext/mixed/js')

diff --git a/ext/mixed/js/display.js b/ext/mixed/js/display.js
index e361a3a1..45019039 100644
--- a/ext/mixed/js/display.js
+++ b/ext/mixed/js/display.js
@@ -132,23 +132,6 @@ class Display extends EventDispatcher {
             ['playAudio',         () => { this._playAudioCurrent(); }],
             ['copyHostSelection', () => this._copyHostSelection()]
         ]);
-        this.registerHotkeys([
-            {key: 'Escape',    modifiers: [],       action: 'close'},
-            {key: 'PageUp',    modifiers: ['alt'],  action: 'previousEntry3'},
-            {key: 'PageDown',  modifiers: ['alt'],  action: 'nextEntry3'},
-            {key: 'End',       modifiers: ['alt'],  action: 'lastEntry'},
-            {key: 'Home',      modifiers: ['alt'],  action: 'firstEntry'},
-            {key: 'ArrowUp',   modifiers: ['alt'],  action: 'previousEntry'},
-            {key: 'ArrowDown', modifiers: ['alt'],  action: 'nextEntry'},
-            {key: 'KeyB',      modifiers: ['alt'],  action: 'historyBackward'},
-            {key: 'KeyF',      modifiers: ['alt'],  action: 'historyForward'},
-            {key: 'KeyK',      modifiers: ['alt'],  action: 'addNoteKanji'},
-            {key: 'KeyE',      modifiers: ['alt'],  action: 'addNoteTermKanji'},
-            {key: 'KeyR',      modifiers: ['alt'],  action: 'addNoteTermKana'},
-            {key: 'KeyP',      modifiers: ['alt'],  action: 'playAudio'},
-            {key: 'KeyV',      modifiers: ['alt'],  action: 'viewNote'},
-            {key: 'KeyC',      modifiers: ['ctrl'], action: 'copyHostSelection'}
-        ]);
         this.registerMessageHandlers([
             ['setMode', {async: false, handler: this._onMessageSetMode.bind(this)}]
         ]);
@@ -313,6 +296,7 @@ class Display extends EventDispatcher {
         this._options = options;
         this._ankiFieldTemplates = templates;
 
+        this._updateHotkeys(options);
         this._updateDocumentOptions(options);
         this._updateTheme(options.general.popupTheme);
         this.setCustomCss(options.general.customPopupCss);
@@ -401,17 +385,6 @@ class Display extends EventDispatcher {
         }
     }
 
-    registerHotkeys(hotkeys) {
-        for (const {key, modifiers, action} of hotkeys) {
-            let handlers = this._hotkeys.get(key);
-            if (typeof handlers === 'undefined') {
-                handlers = [];
-                this._hotkeys.set(key, handlers);
-            }
-            handlers.push({modifiers: new Set(modifiers), action});
-        }
-    }
-
     registerMessageHandlers(handlers) {
         for (const [name, handlerInfo] of handlers) {
             this._messageHandlers.set(name, handlerInfo);
@@ -1902,4 +1875,25 @@ class Display extends EventDispatcher {
         height = Math.max(Math.max(0, handleSize.height), height);
         await this._invokeOwner('setFrameSize', {width, height});
     }
+
+    _registerHotkey(key, modifiers, action) {
+        if (!this._actions.has(action)) { return false; }
+
+        let handlers = this._hotkeys.get(key);
+        if (typeof handlers === 'undefined') {
+            handlers = [];
+            this._hotkeys.set(key, handlers);
+        }
+        handlers.push({modifiers: new Set(modifiers), action});
+        return true;
+    }
+
+    _updateHotkeys(options) {
+        this._hotkeys.clear();
+
+        for (const {action, key, modifiers, scopes, enabled} of options.inputs.hotkeys) {
+            if (!enabled || !scopes.includes(this._pageType)) { continue; }
+            this._registerHotkey(key, modifiers, action);
+        }
+    }
 }
-- 
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