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joplin/ReactNativeClient/lib/renderers/MdToHtml/rules/link_open.js

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const Entities = require('html-entities').AllHtmlEntities;
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const htmlentities = new Entities().encode;
const Resource = require('lib/models/Resource.js');
const utils = require('../../utils');
function installRule(markdownIt, mdOptions, ruleOptions) {
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markdownIt.renderer.rules.link_open = function(tokens, idx, options, env, self) {
const token = tokens[idx];
let href = utils.getAttr(token.attrs, 'href');
const isResourceUrl = Resource.isResourceUrl(href);
const title = isResourceUrl ? utils.getAttr(token.attrs, 'title') : href;
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let resourceIdAttr = '';
let icon = '';
let hrefAttr = '#';
if (isResourceUrl) {
const resourceId = Resource.pathToId(href);
const result = ruleOptions.resources[resourceId];
const resourceStatus = utils.resourceStatus(result);
if (result && resourceStatus !== 'ready') {
const icon = utils.resourceStatusFile(resourceStatus);
return '<a class="not-loaded-resource resource-status-' + resourceStatus + '" data-resource-id="' + resourceId + '">' + '<img src="data:image/svg+xml;utf8,' + htmlentities(icon) + '"/>';
} else {
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href = 'joplin://' + resourceId;
resourceIdAttr = 'data-resource-id=\'' + resourceId + '\'';
icon = '<span class="resource-icon"></span>';
}
} else {
// If the link is a plain URL (as opposed to a resource link), set the href to the actual
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// link. This allows the link to be exported too when exporting to PDF.
hrefAttr = href;
}
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let js = ruleOptions.postMessageSyntax + '(' + JSON.stringify(href) + '); return false;';
if (hrefAttr.indexOf('#') === 0 && href.indexOf('#') === 0) js = ''; // If it's an internal anchor, don't add any JS since the webview is going to handle navigating to the right place
return '<a data-from-md ' + resourceIdAttr + ' title=\'' + htmlentities(title) + '\' href=\'' + hrefAttr + '\' onclick=\'' + js + '\'>' + icon;
};
}
module.exports = function(context, ruleOptions) {
return function(md, mdOptions) {
installRule(md, mdOptions, ruleOptions);
};
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};