add nova

nova/resources/js/mixins/SupportsPolling.js

@@ -0,0 +1,95 @@
+export default {
+  data: () => ({
+    pollingListener: null,
+    currentlyPolling: false,
+  }),
+
+  /**
+   * Unbind the polling listener before the component is destroyed.
+   */
+  beforeUnmount() {
+    this.stopPolling()
+  },
+
+  methods: {
+    initializePolling() {
+      this.currentlyPolling =
+        this.currentlyPolling || this.resourceResponse.polling
+
+      if (this.currentlyPolling && this.pollingListener === null) {
+        return this.startPolling()
+      }
+    },
+
+    /**
+     * Toggle polling for new resources.
+     */
+    togglePolling() {
+      if (this.currentlyPolling) {
+        this.stopPolling()
+      } else {
+        this.startPolling()
+      }
+    },
+
+    /**
+     * Pause polling for new resources.
+     */
+    stopPolling() {
+      if (this.pollingListener) {
+        clearInterval(this.pollingListener)
+        this.pollingListener = null
+      }
+
+      this.currentlyPolling = false
+    },
+
+    /**
+     * Start polling for new resources.
+     */
+    startPolling() {
+      this.pollingListener = setInterval(() => {
+        let selectedResources = this.selectedResources ?? []
+
+        if (
+          document.hasFocus() &&
+          document.querySelectorAll('[data-modal-open]').length < 1 &&
+          selectedResources.length < 1
+        ) {
+          this.getResources()
+        }
+      }, this.pollingInterval)
+
+      this.currentlyPolling = true
+    },
+
+    /**
+     * Restart polling for the resource.
+     */
+    restartPolling() {
+      if (this.currentlyPolling === true) {
+        this.stopPolling()
+        this.startPolling()
+      }
+    },
+  },
+
+  computed: {
+    initiallyPolling() {
+      return this.resourceResponse.polling
+    },
+
+    pollingInterval() {
+      return this.resourceResponse.pollingInterval
+    },
+
+    /**
+     * Determine if the polling toggle button should be shown.
+     */
+    shouldShowPollingToggle() {
+      if (!this.resourceResponse) return false
+
+      return this.resourceResponse.showPollingToggle || false
+    },
+  },
+}