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Diffstat (limited to '')
-rw-r--r-- | src/doc/book/ferris.js | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/src/doc/book/ferris.js b/src/doc/book/ferris.js new file mode 100644 index 000000000..bb601a4e2 --- /dev/null +++ b/src/doc/book/ferris.js @@ -0,0 +1,65 @@ +var ferrisTypes = [ + { + attr: 'does_not_compile', + title: 'This code does not compile!' + }, + { + attr: 'panics', + title: 'This code panics!' + }, + { + attr: 'not_desired_behavior', + title: 'This code does not produce the desired behavior.' + } +] + +document.addEventListener('DOMContentLoaded', () => { + for (var ferrisType of ferrisTypes) { + attachFerrises(ferrisType) + } +}) + +function attachFerrises(type) { + var elements = document.getElementsByClassName(type.attr) + + for (var codeBlock of elements) { + var lines = codeBlock.innerText.replace(/\n$/, '').split(/\n/).length + var size = 'large' + if (lines < 4) { + size = 'small' + } + + var container = prepareFerrisContainer(codeBlock, size == 'small') + container.appendChild(createFerris(type, size)) + } +} + +function prepareFerrisContainer(element, useButtons) { + var foundButtons = element.parentElement.querySelector('.buttons') + if (useButtons && foundButtons) { + return foundButtons + } + + var div = document.createElement('div') + div.classList.add('ferris-container') + + element.parentElement.insertBefore(div, element) + + return div +} + +function createFerris(type, size) { + var a = document.createElement('a') + a.setAttribute('href', 'ch00-00-introduction.html#ferris') + a.setAttribute('target', '_blank') + + var img = document.createElement('img') + img.setAttribute('src', 'img/ferris/' + type.attr + '.svg') + img.setAttribute('title', type.title) + img.classList.add('ferris') + img.classList.add('ferris-' + size) + + a.appendChild(img) + + return a +} |