jellyfin-web/dashboard-ui/bower_components/prism/plugins/command-line/prism-command-line.js
2016-02-03 18:00:01 -05:00

78 lines
2.4 KiB
JavaScript

(function() {
if (typeof self === 'undefined' || !self.Prism || !self.document) {
return;
}
Prism.hooks.add('complete', function (env) {
if (!env.code) {
return;
}
// Works only for <code> wrapped inside <pre> (not inline).
var pre = env.element.parentNode;
var clsReg = /\s*\bcommand-line\b\s*/;
if (
!pre || !/pre/i.test(pre.nodeName) ||
// Abort only if neither the <pre> nor the <code> have the class
(!clsReg.test(pre.className) && !clsReg.test(env.element.className))
) {
return;
}
if (env.element.querySelector('.command-line-prompt')) {
// Abort if prompt already exists.
return;
}
if (clsReg.test(env.element.className)) {
// Remove the class "command-line" from the <code>
env.element.className = env.element.className.replace(clsReg, '');
}
if (!clsReg.test(pre.className)) {
// Add the class "command-line" to the <pre>
pre.className += ' command-line';
}
// Create the "rows" that will become the command-line prompts. -- cwells
var lines = new Array(1 + env.code.split('\n').length);
var promptText = pre.getAttribute('data-prompt') || '';
if (promptText !== '') {
lines = lines.join('<span data-prompt="' + promptText + '"></span>');
} else {
var user = pre.getAttribute('data-user') || 'user';
var host = pre.getAttribute('data-host') || 'localhost';
lines = lines.join('<span data-user="' + user + '" data-host="' + host + '"></span>');
}
// Create the wrapper element. -- cwells
var prompt = document.createElement('span');
prompt.className = 'command-line-prompt';
prompt.innerHTML = lines;
// Mark the output lines so they can be styled differently (no prompt). -- cwells
var outputSections = pre.getAttribute('data-output') || '';
outputSections = outputSections.split(',');
for (var i = 0; i < outputSections.length; i++) {
var outputRange = outputSections[i].split('-');
var outputStart = parseInt(outputRange[0]);
var outputEnd = outputStart; // Default: end at the first line when it's not an actual range. -- cwells
if (outputRange.length === 2) {
outputEnd = parseInt(outputRange[1]);
}
if (!isNaN(outputStart) && !isNaN(outputEnd)) {
for (var j = outputStart; j <= outputEnd && j <= prompt.children.length; j++) {
var node = prompt.children[j - 1];
node.removeAttribute('data-user');
node.removeAttribute('data-host');
node.removeAttribute('data-prompt');
}
}
}
env.element.innerHTML = prompt.outerHTML + env.element.innerHTML;
});
}());