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client/paging: refactor manual pager

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rr- 2016-04-14 20:54:00 +02:00
parent 0ddbc64320
commit ef3dc1fa75
1 changed files with 41 additions and 33 deletions
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74
client/js/views/manual_page_view.js
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@ -10,6 +10,45 @@ function removeConsecutiveDuplicates(a) {
});
}
function getVisiblePageNumbers(currentPage, totalPages) {
const threshold = 2;
let pagesVisible = [];
for (let i = 1; i <= threshold; i++) {
pagesVisible.push(i);
}
for (let i = totalPages - threshold; i <= totalPages; i++) {
pagesVisible.push(i);
}
for (let i = currentPage - threshold;
i <= currentPage + threshold;
i++) {
pagesVisible.push(i);
}
pagesVisible = pagesVisible.filter((item, pos, ary) => {
return item >= 1 && item <= totalPages;
});
pagesVisible = pagesVisible.sort((a, b) => { return a - b; });
pagesVisible = removeConsecutiveDuplicates(pagesVisible);
return pagesVisible;
}
function getPages(currentPage, pageNumbers, clientUrl) {
const pages = [];
let lastPage = 0;
for (let page of pageNumbers) {
if (page !== lastPage + 1) {
pages.push({ellipsis: true});
}
pages.push({
number: page,
link: clientUrl.format({page: page}),
active: currentPage === page,
});
lastPage = page;
}
return pages;
}
class ManualPageView {
constructor() {
this.holderTemplate = views.getTemplate('manual-pager');
@ -34,39 +73,8 @@ class ManualPageView {
ctx.pageRenderer.render(pageRendererCtx);
const totalPages = Math.ceil(response.total / response.pageSize);
const threshold = 2;
let pagesVisible = [];
for (let i = 1; i <= threshold; i++) {
pagesVisible.push(i);
}
for (let i = totalPages - threshold; i <= totalPages; i++) {
pagesVisible.push(i);
}
for (let i = currentPage - threshold;
i <= currentPage + threshold;
i++) {
pagesVisible.push(i);
}
pagesVisible = pagesVisible.filter((item, pos, ary) => {
return item >= 1 && item <= totalPages;
});
pagesVisible = pagesVisible.sort((a, b) => { return a - b; });
pagesVisible = removeConsecutiveDuplicates(pagesVisible);
const pages = [];
let lastPage = 0;
for (let page of pagesVisible) {
if (page !== lastPage + 1) {
pages.push({ellipsis: true});
}
pages.push({
number: page,
link: ctx.clientUrl.format({page: page}),
active: currentPage === page,
});
lastPage = page;
}
const pageNumbers = getVisiblePageNumbers(currentPage, totalPages);
const pages = getPages(currentPage, pageNumbers, ctx.clientUrl);
if (response.total) {
views.showView(pageNav, this.navTemplate({