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FilterHandler.calcPageAction() method

Calculates the new page number based on action.

Determines the target page number from pagination actions like 'prev', 'next', or direct page number strings. Ensures page numbers don't go below 1. Override this method to add custom page calculation logic, such as skipping pages or implementing custom pagination behaviors.

Signature:

protected calcPageAction(currentPage: number, action: string): number;

Parameters

Returns:

number

New page number (minimum 1)

Example

Extend to implement page skipping:

window.boostWidgetIntegration.extend('FilterHandler', (FilterHandler) => {
  return class CustomFilterHandler extends FilterHandler {
    protected calcPageAction(currentPage, action) {
      switch (action) {
        case 'prev':
          // Jump back 2 pages instead of 1
          return Math.max(1, currentPage - 2);
        case 'next':
          // Jump forward 2 pages instead of 1
          return currentPage + 2;
        default:
          return super.calcPageAction(currentPage, action);
      }
    }
  };
});