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@y3krulez/angular-archwizard

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The port of angular-archwizard, supporting IVY and thus being compatible with Angular16+

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import { BaseNavigationMode } from './base-navigation-mode.interface'; import { WizardCompletionStep } from '../util/wizard-completion-step.interface'; /** * The default navigation mode used by [[WizardComponent]] and [[NavigationModeDirective]]. * * It is parameterized with two navigation policies passed to constructor: * * - [[navigateBackward]] policy controls whether wizard steps before the current step are navigable: * * - `"deny"` -- the steps are not navigable * - `"allow"` -- the steps are navigable * - If the corresponding constructor argument is omitted or is `null` or `undefined`, * then the default value is applied which is `"deny"` * * - [[navigateForward]] policy controls whether wizard steps after the current step are navigable: * * - `"deny"` -- the steps are not navigable * - `"allow"` -- the steps are navigable * - `"visited"` -- a step is navigable iff it was already visited before * - If the corresponding constructor argument is omitted or is `null` or `undefined`, * then the default value is applied which is `"allow"` */ export class ConfigurableNavigationMode extends BaseNavigationMode { /** * Constructor * * @param navigateBackward Controls whether wizard steps before the current step are navigable * @param navigateForward Controls whether wizard steps before the current step are navigable */ constructor(navigateBackward = null, navigateForward = null) { super(); this.navigateBackward = navigateBackward; this.navigateForward = navigateForward; this.navigateBackward = this.navigateBackward || 'allow'; this.navigateForward = this.navigateForward || 'deny'; } /** * @inheritDoc */ canTransitionToStep(wizard, destinationIndex) { // if the destination step can be navigated to using the navigation bar, // it should be accessible with [goToStep] as well if (this.isNavigable(wizard, destinationIndex)) { return true; } // navigation with [goToStep] is permitted if all previous steps // to the destination step have been completed or are optional return wizard.wizardSteps .filter((step, index) => index < destinationIndex && index !== wizard.currentStepIndex) .every(step => step.completed || step.optional); } /** * @inheritDoc */ transition(wizard, destinationIndex) { if (this.navigateForward === 'deny') { // set all steps after the destination step to incomplete wizard.wizardSteps .filter((step, index) => wizard.currentStepIndex > destinationIndex && index > destinationIndex) .forEach(step => step.completed = false); } super.transition(wizard, destinationIndex); } /** * @inheritDoc */ isNavigable(wizard, destinationIndex) { // Check if the destination step can be navigated to const destinationStep = wizard.getStepAtIndex(destinationIndex); if (destinationStep instanceof WizardCompletionStep) { // A completion step can only be entered, if all previous steps have been completed, are optional, or selected const previousStepsCompleted = wizard.wizardSteps .filter((step, index) => index < destinationIndex) .every(step => step.completed || step.optional || step.selected); if (!previousStepsCompleted) { return false; } } // Apply navigation pocicies if (destinationIndex < wizard.currentStepIndex) { // If the destination step is before current, apply the `navigateBackward` policy switch (this.navigateBackward) { case 'allow': return true; case 'deny': return false; default: throw new Error(`Invalid value for navigateBackward: ${this.navigateBackward}`); } } else if (destinationIndex > wizard.currentStepIndex) { // If the destination step is after current, apply the `navigateForward` policy switch (this.navigateForward) { case 'allow': return true; case 'deny': return false; case 'visited': return destinationStep.completed; default: throw new Error(`Invalid value for navigateForward: ${this.navigateForward}`); } } else { // Re-entering the current step is not allowed return false; } } /** * @inheritDoc */ ensureCanReset(wizard) { super.ensureCanReset(wizard); // the default step is a completion step and the wizard contains more than one step const defaultWizardStep = wizard.getStepAtIndex(wizard.defaultStepIndex); const defaultCompletionStep = defaultWizardStep instanceof WizardCompletionStep; if (defaultCompletionStep && wizard.wizardSteps.length !== 1) { throw new Error(`The default step index ${wizard.defaultStepIndex} references a completion step`); } } } //# 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{BaseNavigationMode} from './base-navigation-mode.interface';\r\nimport {WizardComponent} from '../components/wizard.component';\r\nimport {WizardCompletionStep} from '../util/wizard-completion-step.interface';\r\n\r\n/**\r\n * The default navigation mode used by [[WizardComponent]] and [[NavigationModeDirective]].\r\n *\r\n * It is parameterized with two navigation policies passed to constructor:\r\n *\r\n * - [[navigateBackward]] policy controls whether wizard steps before the current step are navigable:\r\n *\r\n *   - `\"deny\"` -- the steps are not navigable\r\n *   - `\"allow\"` -- the steps are navigable\r\n *   - If the corresponding constructor argument is omitted or is `null` or `undefined`,\r\n *     then the default value is applied which is `\"deny\"`\r\n *\r\n * - [[navigateForward]] policy controls whether wizard steps after the current step are navigable:\r\n *\r\n *   - `\"deny\"` -- the steps are not navigable\r\n *   - `\"allow\"` -- the steps are navigable\r\n *   - `\"visited\"` -- a step is navigable iff it was already visited before\r\n *   - If the corresponding constructor argument is omitted or is `null` or `undefined`,\r\n *     then the default value is applied which is `\"allow\"`\r\n */\r\nexport class ConfigurableNavigationMode extends BaseNavigationMode {\r\n\r\n  /**\r\n   * Constructor\r\n   *\r\n   * @param navigateBackward Controls whether wizard steps before the current step are navigable\r\n   * @param navigateForward Controls whether wizard steps before the current step are navigable\r\n   */\r\n  constructor(\r\n    private navigateBackward: 'allow'|'deny'|null = null,\r\n    private navigateForward: 'allow'|'deny'|'visited'|null = null,\r\n  ) {\r\n    super();\r\n    this.navigateBackward = this.navigateBackward || 'allow';\r\n    this.navigateForward = this.navigateForward || 'deny';\r\n  }\r\n\r\n  /**\r\n   * @inheritDoc\r\n   */\r\n  protected canTransitionToStep(wizard: WizardComponent, destinationIndex: number): boolean {\r\n    // if the destination step can be navigated to using the navigation bar,\r\n    // it should be accessible with [goToStep] as well\r\n    if (this.isNavigable(wizard, destinationIndex)) {\r\n      return true;\r\n    }\r\n\r\n    // navigation with [goToStep] is permitted if all previous steps\r\n    // to the destination step have been completed or are optional\r\n    return wizard.wizardSteps\r\n        .filter((step, index) => index < destinationIndex && index !== wizard.currentStepIndex)\r\n        .every(step => step.completed || step.optional);\r\n  }\r\n\r\n  /**\r\n   * @inheritDoc\r\n   */\r\n  protected transition(wizard: WizardComponent, destinationIndex: number): void {\r\n    if (this.navigateForward === 'deny') {\r\n      // set all steps after the destination step to incomplete\r\n      wizard.wizardSteps\r\n        .filter((step, index) => wizard.currentStepIndex > destinationIndex && index > destinationIndex)\r\n        .forEach(step => step.completed = false);\r\n    }\r\n\r\n    super.transition(wizard, destinationIndex);\r\n  }\r\n\r\n  /**\r\n   * @inheritDoc\r\n   */\r\n  public isNavigable(wizard: WizardComponent, destinationIndex: number): boolean {\r\n    // Check if the destination step can be navigated to\r\n    const destinationStep = wizard.getStepAtIndex(destinationIndex);\r\n    if (destinationStep instanceof WizardCompletionStep) {\r\n      // A completion step can only be entered, if all previous steps have been completed, are optional, or selected\r\n      const previousStepsCompleted = wizard.wizardSteps\r\n        .filter((step, index) => index < destinationIndex)\r\n        .every(step => step.completed || step.optional || step.selected);\r\n      if (!previousStepsCompleted) {\r\n        return false;\r\n      }\r\n    }\r\n\r\n    // Apply navigation pocicies\r\n    if (destinationIndex < wizard.currentStepIndex) {\r\n      // If the destination step is before current, apply the `navigateBackward` policy\r\n      switch (this.navigateBackward) {\r\n        case 'allow': return true;\r\n        case 'deny': return false;\r\n        default:\r\n          throw new Error(`Invalid value for navigateBackward: ${this.navigateBackward}`);\r\n      }\r\n    } else if (destinationIndex > wizard.currentStepIndex) {\r\n      // If the destination step is after current, apply the `navigateForward` policy\r\n      switch (this.navigateForward) {\r\n        case 'allow': return true;\r\n        case 'deny': return false;\r\n        case 'visited': return destinationStep.completed;\r\n        default:\r\n          throw new Error(`Invalid value for navigateForward: ${this.navigateForward}`);\r\n      }\r\n    } else {\r\n      // Re-entering the current step is not allowed\r\n      return false;\r\n    }\r\n  }\r\n\r\n  /**\r\n   * @inheritDoc\r\n   */\r\n  protected ensureCanReset(wizard: WizardComponent): void {\r\n    super.ensureCanReset(wizard);\r\n\r\n    // the default step is a completion step and the wizard contains more than one step\r\n    const defaultWizardStep = wizard.getStepAtIndex(wizard.defaultStepIndex);\r\n    const defaultCompletionStep = defaultWizardStep instanceof WizardCompletionStep;\r\n    if (defaultCompletionStep && wizard.wizardSteps.length !== 1) {\r\n      throw new Error(`The default step index ${wizard.defaultStepIndex} references a completion step`);\r\n    }\r\n  }\r\n}\r\n"]}