contents of zip

scripts/maintenance_notification.js

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+// Use strict
+"use strict";
+
+
+// Classes
+
+// Maintenance notification class
+class MaintenanceNotification {
+
+	// Public
+	
+		// Constructor
+		constructor() {
+			
+			// Get maintenance notification display
+			this.maintenanceNotificationDisplay = $("section.maintenanceNotification");
+			
+			// Get acknowledge button
+			this.acknowledgeButton = this.maintenanceNotificationDisplay.find("button");
+			
+			// Get start timestamp
+			this.startTimestamp = (MAINTENANCE_START_TIME["length"] !== 0) ? Date.parse(MAINTENANCE_START_TIME) / Common.MILLISECONDS_IN_A_SECOND : 0;
+			
+			// Set can show
+			this.canShow = true;
+			
+			// Set self
+			var self = this;
+			
+			// Maintenance notification display transaition end event
+			this.maintenanceNotificationDisplay.on("transitionend", function() {
+			
+				// Check if maintenance notification display is hiding
+				if(self.maintenanceNotificationDisplay.hasClass("hide") === true)
+				
+					// Prevent focus on maintenance notification display's elements
+					self.maintenanceNotificationDisplay.addClass("noFocus");
+			});
+			
+			// Window storage event
+			$(window).on("storage", function(event) {
+			
+				// Check if maintenance notification message acknowledged timestamp was changed and it's as recent or newer than the start timestamp
+				if(event["originalEvent"]["key"] === MaintenanceNotification.MAINTENANCE_NOTIFICATION_MESSAGE_ACKNOWLEDGED_TIMESTAMP_LOCAL_STORAGE_NAME && parseInt(event["originalEvent"]["newValue"], Common.DECIMAL_NUMBER_BASE) >= self.startTimestamp) {
+				
+					// Hide
+					self.hide();
+					
+					// Clear can show
+					self.canShow = false;
+				}
+			});
+			
+			// Acknowledged button click event
+			this.acknowledgeButton.on("click", function() {
+			
+				// Hide
+				self.hide();
+				
+				// Clear can show
+				self.canShow = false;
+			
+				// Try
+				try {
+				
+					// Save maintenance notification message acknowledged timestamp
+					localStorage.setItem(MaintenanceNotification.MAINTENANCE_NOTIFICATION_MESSAGE_ACKNOWLEDGED_TIMESTAMP_LOCAL_STORAGE_NAME, self.startTimestamp.toFixed());
+				}
+				
+				// Catch errors
+				catch(error) {
+				
+					// Trigger a fatal error
+					new FatalError(FatalError.LOCAL_STORAGE_ERROR);
+				}
+			});
+		}
+		
+		// Show
+		show() {
+		
+			// Check if can show
+			if(this.canShow === true) {
+			
+				// Check if not an extension and not loading from file
+				if(Common.isExtension() === false && location["protocol"] !== Common.FILE_PROTOCOL) {
+			
+					// Get the current timestamp
+					var currentTimestamp = Common.getCurrentTimestamp();
+				
+					// Check if current timestamp is older than the start timestamp
+					if(currentTimestamp <= this.startTimestamp) {
+			
+						// Get maintenance notification message acknowledged timestamp
+						var maintenanceNotificationMessageAcknowledgedTimestamp = localStorage.getItem(MaintenanceNotification.MAINTENANCE_NOTIFICATION_MESSAGE_ACKNOWLEDGED_TIMESTAMP_LOCAL_STORAGE_NAME);
+						
+						// Check if maintenance notification message hasn't been acknowledged or it was acknowledged as an older timestamp
+						if(maintenanceNotificationMessageAcknowledgedTimestamp === Common.INVALID_LOCAL_STORAGE_ITEM || parseInt(maintenanceNotificationMessageAcknowledgedTimestamp, Common.DECIMAL_NUMBER_BASE) < this.startTimestamp) {
+						
+							// Check if is an app
+							if(Common.isApp() === true) {
+							
+								// Set message
+								var message = Language.getDefaultTranslation('This app will be down for scheduled maintenance starting on %1$d at %2$t.');
+							}
+							
+							// Otherwise
+							else {
+							
+								// Set message
+								var message = Language.getDefaultTranslation('This site will be down for scheduled maintenance starting on %1$d at %2$t.');
+							}
+						
+							// Add maintenance notification display text to maintenance notification display
+							this.maintenanceNotificationDisplay.find("button").before(Language.createTranslatableContainer("<p>", message, [
+							
+								// Start timestamp
+								this.startTimestamp.toFixed(),
+								
+								// Start timestamp
+								this.startTimestamp.toFixed()
+							]));
+							
+							// Show maintenance notification display and make it so that its elements can be focused
+							this.maintenanceNotificationDisplay.removeClass("hide noFocus");
+							
+							// Check if a timeout can be set for the start timestamp
+							if((this.startTimestamp - currentTimestamp) * Common.MILLISECONDS_IN_A_SECOND <= Common.INT32_MAX_VALUE) {
+							
+								// Check if not closing when done processing extension requests
+								if(Extension.getCloseWhenDone() === false) {
+							
+									// Set timeout
+									setTimeout(function() {
+									
+										// Prevent extension from interrupting on close
+										Extension.preventInterruptOnClose();
+									
+										// Go to maintenance page
+										location.replace(((location["protocol"] === Common.HTTPS_PROTOCOL) ? Common.HTTPS_PROTOCOL : Common.HTTP_PROTOCOL) + "//" + location["hostname"] + MaintenanceNotification.MAINTENANCE_PAGE_URL);
+										
+									}, (this.startTimestamp - currentTimestamp) * Common.MILLISECONDS_IN_A_SECOND);
+								}
+							}
+							
+							// Return true
+							return true;
+						}
+					}
+				}
+			}
+			
+			// Return false
+			return false;
+		}
+	
+	// Private
+		
+		// Hide
+		hide() {
+		
+			// Hide maintenance notification display
+			this.maintenanceNotificationDisplay.addClass("hide");
+		}
+		
+		// Maintenance notification message acknowledged local storage name
+		static get MAINTENANCE_NOTIFICATION_MESSAGE_ACKNOWLEDGED_TIMESTAMP_LOCAL_STORAGE_NAME() {
+		
+			// Return maintenance notification message acknowledged timestamp local storage name
+			return "Maintenance Notification Message Acknowledged Timestamp";
+		}
+		
+		// Maintenance page URL
+		static get MAINTENANCE_PAGE_URL() {
+		
+			// Return maintenance page URL
+			return "/errors/503.html";
+		}
+}
+
+
+// Main function
+
+// Set global object's maintenance notification
+globalThis["MaintenanceNotification"] = MaintenanceNotification;