UI: Improvent for key event for rule chain page for Mac

ui-ngx/src/app/modules/home/pages/rulechain/rulechain-page.component.ts

@@ -369,7 +369,7 @@ export class RuleChainPageComponent extends PageComponent
   private initHotKeys(): void {
     if (!this.hotKeys.length) {
       this.hotKeys.push(
-        new Hotkey('ctrl+a', (event: KeyboardEvent) => {
+        new Hotkey(['ctrl+a', 'meta+a'], (event: KeyboardEvent) => {
             if (this.enableHotKeys) {
               event.preventDefault();
               this.ruleChainCanvas.modelService.selectAll();
@@ -380,7 +380,7 @@ export class RuleChainPageComponent extends PageComponent
           this.translate.instant('rulenode.select-all-objects'))
       );
       this.hotKeys.push(
-        new Hotkey('ctrl+c', (event: KeyboardEvent) => {
+        new Hotkey(['ctrl+c', 'meta+c'], (event: KeyboardEvent) => {
             if (this.enableHotKeys) {
               event.preventDefault();
               this.copyRuleNodes();
@@ -391,7 +391,7 @@ export class RuleChainPageComponent extends PageComponent
           this.translate.instant('rulenode.copy-selected'))
       );
       this.hotKeys.push(
-        new Hotkey('ctrl+v', (event: KeyboardEvent) => {
+        new Hotkey(['ctrl+v', 'meta+v'], (event: KeyboardEvent) => {
             if (this.enableHotKeys) {
               event.preventDefault();
               if (this.itembuffer.hasRuleNodes()) {
@@ -416,7 +416,7 @@ export class RuleChainPageComponent extends PageComponent
           this.translate.instant('rulenode.deselect-all-objects'))
       );
       this.hotKeys.push(
-        new Hotkey('ctrl+s', (event: KeyboardEvent) => {
+        new Hotkey(['ctrl+s', 'meta+s'], (event: KeyboardEvent) => {
             if (this.enableHotKeys) {
               event.preventDefault();
               this.saveRuleChain();
@@ -427,7 +427,7 @@ export class RuleChainPageComponent extends PageComponent
           this.translate.instant('action.apply'))
       );
       this.hotKeys.push(
-        new Hotkey('ctrl+z', (event: KeyboardEvent) => {
+        new Hotkey(['ctrl+z', 'meta+z'], (event: KeyboardEvent) => {
             if (this.enableHotKeys) {
               event.preventDefault();
               this.revertRuleChain();
@@ -449,7 +449,7 @@ export class RuleChainPageComponent extends PageComponent
           this.translate.instant('rulenode.delete-selected-objects'))
       );
       this.hotKeys.push(
-        new Hotkey('ctrl+r', (event: KeyboardEvent) => {
+        new Hotkey(['ctrl+r', 'meta+r'], (event: KeyboardEvent) => {
             if (this.enableHotKeys && this.canCreateNestedRuleChain()) {
               event.preventDefault();
               this.createNestedRuleChain();