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Treat page numbers as strings, store page number to href mapping #1265

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Treat page numbers as strings, store page number to href mapping #1265

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31 changes: 19 additions & 12 deletions src/pagelist.js
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Expand Up @@ -15,6 +15,7 @@ class PageList {
constructor(xml) {
this.pages = [];
this.locations = [];
this.hrefMap = {};
this.epubcfi = new EpubCFI();

this.firstPage = 0;
Expand Down Expand Up @@ -106,7 +107,7 @@ class PageList {
var content = qs(item, "content");

var href = content.getAttribute("src");
var page = parseInt(pageText, 10);
var page = pageText;

return {
"href": href,
Expand All @@ -124,7 +125,7 @@ class PageList {
var content = qs(item, "a"),
href = content.getAttribute("href") || "",
text = content.textContent || "",
page = parseInt(text),
page = text,
isCfi = href.indexOf("epubcfi"),
split,
packageUrl,
Expand Down Expand Up @@ -156,19 +157,20 @@ class PageList {
process(pageList){
pageList.forEach(function(item){
this.pages.push(item.page);
this.hrefMap[item.page] = item.href;
if (item.cfi) {
this.locations.push(item.cfi);
}
}, this);
this.firstPage = parseInt(this.pages[0]);
this.lastPage = parseInt(this.pages[this.pages.length-1]);
this.firstPage = this.pages[0];
this.lastPage = this.pages[this.pages.length-1];
this.totalPages = this.lastPage - this.firstPage;
}

/**
* Get a PageList result from a EpubCFI
* @param {string} cfi EpubCFI String
* @return {number} page
* @return {string} page
*/
pageFromCfi(cfi){
var pg = -1;
Expand Down Expand Up @@ -205,15 +207,11 @@ class PageList {

/**
* Get an EpubCFI from a Page List Item
* @param {string | number} pg
* @param {string} pg
* @return {string} cfi
*/
cfiFromPage(pg){
var cfi = -1;
// check that pg is an int
if(typeof pg != "number"){
pg = parseInt(pg);
}

// check if the cfi is in the page list
// Pages could be unsorted.
Expand All @@ -228,7 +226,7 @@ class PageList {
/**
* Get a Page from Book percentage
* @param {number} percent
* @return {number} page
* @return {string} page
*/
pageFromPercentage(percent){
var pg = Math.round(this.totalPages * percent);
Expand All @@ -237,7 +235,7 @@ class PageList {

/**
* Returns a value between 0 - 1 corresponding to the location of a page
* @param {number} pg the page
* @param {string} pg the page
* @return {number} percentage
*/
percentageFromPage(pg){
Expand All @@ -256,6 +254,15 @@ class PageList {
return percentage;
}

/**
* Returns the href corresponding to a page
* @param {string} pg the page
* @return {string} href
*/
hrefFromPage(pg){
return this.hrefMap[pg];
}

/**
* Destroy
*/
Expand Down
10 changes: 6 additions & 4 deletions types/pagelist.d.ts
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Expand Up @@ -10,13 +10,15 @@ export default class Pagelist {

parse(xml: XMLDocument): Array<PageListItem>;

pageFromCfi(cfi: string): number;
pageFromCfi(cfi: string): string;

cfiFromPage(pg: string | number): string;
cfiFromPage(pg: string): string;

pageFromPercentage(percent: number): number;
pageFromPercentage(percent: number): string;

percentageFromPage(pg: number): number;
percentageFromPage(pg: string): number;

hrefFromPage(pg: string): string;

destroy(): void;

Expand Down