Add filter woocommerce_paypal_payments_<context>_button_disabled to disable PayPal buttons on a given context.

modules/ppcp-button/resources/js/modules/ContextBootstrap/CartBootstap.js

@@ -1,5 +1,6 @@
 import CartActionHandler from '../ActionHandler/CartActionHandler';
 import {setVisible} from "../Helper/Hiding";
+import {disable} from "../Helper/ButtonDisabler";
 
 class CartBootstrap {
     constructor(gateway, renderer, errorHandler) {
@@ -15,6 +16,13 @@ class CartBootstrap {
 
         this.render();
 
+        if (!this.shouldEnable()) {
+            this.renderer.disableSmartButtons();
+            disable(this.gateway.button.wrapper);
+            disable(this.gateway.messages.wrapper);
+            return;
+        }
+
         jQuery(document.body).on('updated_cart_totals updated_checkout', () => {
             this.render();
 
@@ -44,6 +52,11 @@ class CartBootstrap {
         return document.querySelector(this.gateway.button.wrapper) !== null;
     }
 
+    shouldEnable() {
+        return this.shouldRender()
+            && this.gateway.button.is_disabled !== true;
+    }
+
     render() {
         const actionHandler = new CartActionHandler(
             PayPalCommerceGateway,

modules/ppcp-button/resources/js/modules/ContextBootstrap/CheckoutBootstap.js

@@ -5,6 +5,7 @@ import {
     isSavedCardSelected, ORDER_BUTTON_SELECTOR,
     PaymentMethods
 } from "../Helper/CheckoutMethodState";
+import {disable} from "../Helper/ButtonDisabler";
 
 class CheckoutBootstap {
     constructor(gateway, renderer, messages, spinner, errorHandler) {
@@ -20,6 +21,13 @@ class CheckoutBootstap {
     init() {
         this.render();
 
+        if (!this.shouldEnable()) {
+            this.renderer.disableSmartButtons();
+            disable(this.gateway.button.wrapper);
+            disable(this.gateway.messages.wrapper);
+            return;
+        }
+
         // Unselect saved card.
         // WC saves form values, so with our current UI it would be a bit weird
         // if the user paid with saved, then after some time tries to pay again,
@@ -51,6 +59,11 @@ class CheckoutBootstap {
         return document.querySelector(this.gateway.button.wrapper) !== null || document.querySelector(this.gateway.hosted_fields.wrapper) !== null;
     }
 
+    shouldEnable() {
+        return this.shouldRender()
+            && this.gateway.button.is_disabled !== true;
+    }
+
     render() {
         if (!this.shouldRender()) {
             return;

modules/ppcp-button/resources/js/modules/ContextBootstrap/MiniCartBootstap.js

@@ -1,4 +1,5 @@
 import CartActionHandler from '../ActionHandler/CartActionHandler';
+import {disable} from "../Helper/ButtonDisabler";
 
 class MiniCartBootstap {
     constructor(gateway, renderer, errorHandler) {
@@ -16,6 +17,13 @@ class MiniCartBootstap {
         );
         this.render();
 
+        if (!this.shouldEnable()) {
+            this.renderer.disableSmartButtons();
+            disable(this.gateway.button.wrapper);
+            disable(this.gateway.messages.wrapper);
+            return;
+        }
+
         jQuery(document.body).on('wc_fragments_loaded wc_fragments_refreshed', () => {
             this.render();
         });
@@ -26,6 +34,11 @@ class MiniCartBootstap {
             || document.querySelector(this.gateway.hosted_fields.mini_cart_wrapper) !== null;
     }
 
+    shouldEnable() {
+        return this.shouldRender()
+            && this.gateway.button.is_disabled !== true;
+    }
+
     render() {
         if (!this.shouldRender()) {
             return;

modules/ppcp-button/src/Assets/SmartButton.php

@@ -1357,20 +1357,43 @@ class SmartButton implements SmartButtonInterface {
 	 * @return bool
 	 */
 	protected function is_button_disabled(): bool {
-		if ( 'product' !== $this->context() ) {
+		$context = $this->context();
-			return false;
-		}
 
+		if ( 'product' === $context ) {
 			$product = wc_get_product();
 
 			/**
 			 * Allows to decide if the button should be disabled for a given product
 			 */
-		return apply_filters(
+			if ( ( $isDisabled = apply_filters(
 				'woocommerce_paypal_payments_product_button_disabled',
-			false,
+				null,
-			$product
+				$product )
-		);
+			) !== null) {
+				return $isDisabled;
+			}
+		} else {
+			$filterName = 'woocommerce_paypal_payments_'
+				. str_replace('-', '_', $context)
+				. '_button_disabled';
+
+			/**
+			 * Allows to decide if the button should be disabled in a given context
+			 */
+			if ( ( $isDisabled = apply_filters( $filterName, null ) ) !== null ) {
+				return $isDisabled;
+			}
+		}
+
+		if ( ( $isDisabled = apply_filters(
+			'woocommerce_paypal_payments_button_disabled',
+			null,
+			$context
+		) ) !== null ) {
+			return $isDisabled;
+		}
+
+		return false;
 	}
 
 	/**