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Add support for area tag in jQuery mode #484 (#492)

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Closes #484.
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Jaifroid 2019-05-04 20:22:17 +01:00 committed by GitHub
parent 9ef679e9ba
commit 9cc7cb9ff0
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1 changed files with 20 additions and 19 deletions
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39
www/js/app.js
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@ -940,43 +940,44 @@ define(['jquery', 'zimArchiveLoader', 'util', 'uiUtil', 'cookies','abstractFiles
var escapedUrl = encodeURIComponent(dirEntry.url).replace(/([\\$^.|?*+\/()[{])/g, '\\$1');
// Pattern to match a local anchor in an href even if prefixed by escaped url; will also match # on its own
var regexpLocalAnchorHref = new RegExp('^(?:#|' + escapedUrl + '#)([^#]*$)');
$('#articleContent').contents().find('body').find('a').each(function () {
var iframe = iframeArticleContent.contentDocument;
Array.prototype.slice.call(iframe.querySelectorAll('a, area')).forEach(function (anchor) {
// Attempts to access any properties of 'this' with malformed URLs causes app crash in Edge/UWP [kiwix-js #430]
try {
var testHref = this.href;
var testHref = anchor.href;
} catch (err) {
console.error("Malformed href caused error:" + err.message);
console.error('Malformed href caused error:' + err.message);
return;
}
var href = this.getAttribute('href');
var href = anchor.getAttribute('href');
if (href === null || href === undefined) return;
// Compute current link's url (with its namespace), if applicable
// NB We need to access 'this.href' here because, unlike 'this.getAttribute("href")', it contains the fully qualified URL [kiwix-js #432]
var zimUrl = regexpZIMUrlWithNamespace.test(this.href) ? this.href.match(regexpZIMUrlWithNamespace)[1] : '';
// NB We need to access 'anchor.href' here because, unlike 'anchor.getAttribute("href")', it contains the fully qualified URL [kiwix-js #432]
var zimUrl = regexpZIMUrlWithNamespace.test(anchor.href) ? anchor.href.match(regexpZIMUrlWithNamespace)[1] : '';
if (href.length === 0) {
// It's a link with an empty href, pointing to the current page.
// Because of the base tag, we need to modify it
$(this).on('click', function (e) {
return false;
anchor.addEventListener('click', function (e) {
e.preventDefault();
});
} else if (regexpLocalAnchorHref.test(href)) {
// It's an anchor link : we need to make it work with javascript because of the base tag
var anchorRef = href.replace(regexpLocalAnchorHref, '$1');
// DEV: If jQuery mode ever supports JS-in-the-ZIM, the check for an onclick event may need to be revisited
var onClickAttr = this.getAttribute('onclick');
$(this).on('click', function (e) {
var onClickAttr = anchor.getAttribute('onclick');
anchor.addEventListener('click', function (e) {
var iframeWindow = document.getElementById('articleContent').contentWindow;
if (anchorRef)
iframeWindow.location.hash = anchorRef;
else if (!onClickAttr)
// It's just a single # and there is no onclick in the HTML, so scroll to top
iframeWindow.scrollTo({ top: 0, behavior: 'smooth' });
return false;
e.preventDefault();
});
} else if (this.protocol !== currentProtocol ||
this.host !== currentHost) {
} else if (anchor.protocol !== currentProtocol ||
anchor.host !== currentHost) {
// It's an external URL : we should open it in a new tab
this.target = "_blank";
anchor.target = '_blank';
} else {
// It's a link to an article or file in the ZIM
var uriComponent = uiUtil.removeUrlParameters(zimUrl);
@ -988,18 +989,18 @@ define(['jquery', 'zimArchiveLoader', 'util', 'uiUtil', 'cookies','abstractFiles
// For Boolean values, getAttribute can return any of the following: download="" download="download" download="true"
// So we need to test hasAttribute first: see https://developer.mozilla.org/en-US/docs/Web/API/Element/getAttribute
// However, we cannot rely on the download attribute having been set, so we also need to test for known download file types
var isDownloadableLink = this.hasAttribute('download') || regexpDownloadLinks.test(href);
var isDownloadableLink = anchor.hasAttribute('download') || regexpDownloadLinks.test(href);
if (isDownloadableLink) {
downloadAttrValue = this.getAttribute('download');
downloadAttrValue = anchor.getAttribute('download');
// Normalize the value to a true Boolean or a filename string or true if there is no download attribute
downloadAttrValue = /^(download|true|\s*)$/i.test(downloadAttrValue) || downloadAttrValue || true;
contentType = this.getAttribute('type');
contentType = anchor.getAttribute('type');
}
// Add an onclick event to extract this article or file from the ZIM
// instead of following the link
$(this).on('click', function (e) {
anchor.addEventListener('click', function (e) {
goToArticle(decodedURL, downloadAttrValue, contentType);
return false;
e.preventDefault();
});
}
});