local basalt = require("basalt") local main = basalt.getMainFrame() -- Initialize form states :initializeState("username", "", true) -- make them persistent :initializeState("password", "", true) -- make them persistent :initializeState("confirmPassword", "", true) -- make them persistent local form = main:addFrame() :setSize("{parent.width - 4}", "{parent.height - 4}") :setPosition(3, 3) -- Add computed validation state form:computed("isValid", function(self) local username = self:getState("username") local password = self:getState("password") local confirmPass = self:getState("confirmPassword") return #username >= 3 and #password >= 6 and password == confirmPass end) -- Create labels form:addLabel({text="Username:", x = 2, y = 2, foreground = colors.lightGray}) form:addLabel({text="Password:", x = 2, y = 4, foreground = colors.lightGray}) form:addLabel({text="Confirm:", x = 2, y = 6, foreground = colors.lightGray}) local userInput = form:addInput({x = 11, y = 2, width = 20, height = 1}):bind("text", "username") local passwordInput = form:addInput({x = 11, y = 4, width = 20, height = 1}):bind("text", "password") local confirmInput = form:addInput({x = 11, y = 6, width = 20, height = 1}):bind("text", "confirmPassword") -- Submit button local submitBtn = form:addButton() :setText("Submit") :setPosition(2, 8) :setSize(29, 1) -- Status label local statusLabel = form:addLabel() :setPosition(2, 10) :setSize(29, 1) form:onStateChange("isValid", function(self, isValid) if isValid then statusLabel:setText("Form is valid!") :setForeground(colors.green) submitBtn:setBackground(colors.green) else statusLabel:setText("Please fill all fields correctly") :setForeground(colors.red) submitBtn:setBackground(colors.red) end end) basalt.run()