Tips and Tricks

• Generating and Getting Page Numbers

Generating and Getting Page Numbers

To use pagination, first you have to generate the page numbers. This will return a promise which completes after the pagination is generated:

book.generatePagination().then(function () {
    console.log("The pagination has been generated");
});

To have pagination consistent across different window sizes, you can specify a fixed size in pixels for each page:

var width = 600;
var height = 600;

book.generatePagination(width, height).then(function () {
    console.log("The pagination has been generated");
});

To get the page number of a CFI:

book.pagination.pageFromCfi(cfiGoesHere);
/* This returns a page number as an Integer */

To get the current page:

book.pagination.pageFromCfi(book.getCurrentLocationCfi());
/* This returns a page number as an Integer */