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| gutterDiv.setAttribute("id", "code-annotation-line-highlight-gutter"); | |
| gutterDiv.style.position = 'absolute'; | |
| const codeCell = window.document.getElementById(targetCell); | |
| const gutter = codeCell.querySelector('.code-annotation-gutter'); | |
| gutter.appendChild(gutterDiv); | |
| } | |
| gutterDiv.style.top = top - 2 + "px"; | |
| gutterDiv.style.height = height + 4 + "px"; | |
| } | |
| selectedAnnoteEl = annoteEl; | |
| } | |
| }; | |
| const unselectCodeLines = () => { | |
| const elementsIds = ["code-annotation-line-highlight", "code-annotation-line-highlight-gutter"]; | |
| elementsIds.forEach((elId) => { | |
| const div = window.document.getElementById(elId); | |
| if (div) { | |
| div.remove(); | |
| } | |
| }); | |
| selectedAnnoteEl = undefined; | |
| }; | |
| // Handle positioning of the toggle | |
| window.addEventListener( | |
| "resize", | |
| throttle(() => { | |
| elRect = undefined; | |
| if (selectedAnnoteEl) { | |
| selectCodeLines(selectedAnnoteEl); | |
| } | |
| }, 10) | |
| ); | |
| function throttle(fn, ms) { | |
| let throttle = false; | |
| let timer; | |
| return (...args) => { | |
| if(!throttle) { // first call gets through | |
| fn.apply(this, args); | |
| throttle = true; | |
| } else { // all the others get throttled | |
| if(timer) clearTimeout(timer); // cancel #2 | |
| timer = setTimeout(() => { | |
| fn.apply(this, args); | |
| timer = throttle = false; | |
| }, ms); | |
| } | |
| }; | |
| } | |
| // Attach click handler to the DT | |
| const annoteDls = window.document.querySelectorAll('dt[data-target-cell]'); | |
| for (const annoteDlNode of annoteDls) { | |
| annoteDlNode.addEventListener('click', (event) => { | |
| const clickedEl = event.target; | |
| if (clickedEl !== selectedAnnoteEl) { | |
| unselectCodeLines(); | |
| const activeEl = window.document.querySelector('dt[data-target-cell].code-annotation-active'); | |
| if (activeEl) { | |
| activeEl.classList.remove('code-annotation-active'); | |
| } | |
| selectCodeLines(clickedEl); | |
| clickedEl.classList.add('code-annotation-active'); | |
| } else { | |
| // Unselect the line | |
| unselectCodeLines(); | |
| clickedEl.classList.remove('code-annotation-active'); | |
| } | |
| }); | |
| } | |
| const findCites = (el) => { | |
| const parentEl = el.parentElement; | |
| if (parentEl) { | |
| const cites = parentEl.dataset.cites; | |
| if (cites) { | |
| return { | |
| el, | |
| cites: cites.split(' ') | |
| }; | |
| } else { | |
| return findCites(el.parentElement) | |
| } | |
| } else { | |
| return undefined; | |
| } | |
| }; | |
| var bibliorefs = window.document.querySelectorAll('a[role="doc-biblioref"]'); | |
| for (var i=0; i<bibliorefs.length; i++) { | |
| const ref = bibliorefs[i]; | |
| const citeInfo = findCites(ref); | |
| if (citeInfo) { | |
| tippyHover(citeInfo.el, function() { | |
| var popup = window.document.createElement('div'); | |
| citeInfo.cites.forEach(function(cite) { | |
| var citeDiv = window.document.createElement('div'); | |
| citeDiv.classList.add('hanging-indent'); | |
| citeDiv.classList.add('csl-entry'); | |
| var biblioDiv = window.document.getElementById('ref-' + cite); | |
| if (biblioDiv) { | |
| citeDiv.innerHTML = biblioDiv.innerHTML; | |
| } | |
| popup.appendChild(citeDiv); | |
| }); | |
| return popup.innerHTML; | |
| }); | |
| } | |
| } | |
| }); | |
| </script> | |
| </div> <!-- /content --> | |
| </body></html> |