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@@ -0,0 +1,590 @@
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+// Fix back button cache problem
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+window.onunload = function () { };
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+
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+// Global variable, shared between modules
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+function playpen_text(playpen) {
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+ let code_block = playpen.querySelector("code");
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+
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+ if (window.ace && code_block.classList.contains("editable")) {
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+ let editor = window.ace.edit(code_block);
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+ return editor.getValue();
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+ } else {
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+ return code_block.textContent;
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+ }
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+}
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+
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+(function codeSnippets() {
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+ // Hide Rust code lines prepended with a specific character
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+ var hiding_character = "#";
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+ var request = fetch("https://play.rust-lang.org/meta/crates", {
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+ headers: {
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+ 'Content-Type': "application/json",
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+ },
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+ method: 'POST',
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+ mode: 'cors',
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+ });
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+
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+ function handle_crate_list_update(playpen_block, playground_crates) {
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+ // update the play buttons after receiving the response
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+ update_play_button(playpen_block, playground_crates);
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+
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+ // and install on change listener to dynamically update ACE editors
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+ if (window.ace) {
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+ let code_block = playpen_block.querySelector("code");
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+ if (code_block.classList.contains("editable")) {
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+ let editor = window.ace.edit(code_block);
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+ editor.addEventListener("change", function (e) {
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+ update_play_button(playpen_block, playground_crates);
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+ });
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+ }
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+ }
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+ }
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+
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+ // updates the visibility of play button based on `no_run` class and
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+ // used crates vs ones available on http://play.rust-lang.org
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+ function update_play_button(pre_block, playground_crates) {
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+ var play_button = pre_block.querySelector(".play-button");
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+
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+ // skip if code is `no_run`
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+ if (pre_block.querySelector('code').classList.contains("no_run")) {
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+ play_button.classList.add("hidden");
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+ return;
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+ }
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+
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+ // get list of `extern crate`'s from snippet
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+ var txt = playpen_text(pre_block);
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+ var re = /extern\s+crate\s+([a-zA-Z_0-9]+)\s*;/g;
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+ var snippet_crates = [];
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+ while (item = re.exec(txt)) {
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+ snippet_crates.push(item[1]);
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+ }
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+
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+ // check if all used crates are available on play.rust-lang.org
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+ var all_available = snippet_crates.every(function (elem) {
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+ return playground_crates.indexOf(elem) > -1;
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+ });
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+
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+ if (all_available) {
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+ play_button.classList.remove("hidden");
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+ } else {
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+ play_button.classList.add("hidden");
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+ }
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+ }
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+
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+ function run_rust_code(code_block) {
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+ var result_block = code_block.querySelector(".result");
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+ if (!result_block) {
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+ result_block = document.createElement('code');
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+ result_block.className = 'result hljs language-bash';
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+
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+ code_block.append(result_block);
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+ }
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+
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+ let text = playpen_text(code_block);
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+
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+ var params = {
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+ channel: "stable",
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+ mode: "debug",
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+ crateType: "bin",
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+ tests: false,
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+ code: text,
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+ }
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+
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+ if (text.indexOf("#![feature") !== -1) {
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+ params.channel = "nightly";
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+ }
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+
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+ result_block.innerText = "Running...";
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+
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+ var request = fetch("https://play.rust-lang.org/execute", {
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+ headers: {
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+ 'Content-Type': "application/json",
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+ },
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+ method: 'POST',
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+ mode: 'cors',
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+ body: JSON.stringify(params)
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+ });
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+
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+ request
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+ .then(function (response) { return response.json(); })
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+ .then(function (response) { result_block.innerText = response.success ? response.stdout : response.stderr; })
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+ .catch(function (error) { result_block.innerText = "Playground communication" + error.message; });
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+ }
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+
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+ // Syntax highlighting Configuration
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+ hljs.configure({
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+ tabReplace: ' ', // 4 spaces
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+ languages: [], // Languages used for auto-detection
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+ });
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+
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+ if (window.ace) {
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+ // language-rust class needs to be removed for editable
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+ // blocks or highlightjs will capture events
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+ Array
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+ .from(document.querySelectorAll('code.editable'))
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+ .forEach(function (block) { block.classList.remove('language-rust'); });
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+
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+ Array
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+ .from(document.querySelectorAll('code:not(.editable)'))
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+ .forEach(function (block) { hljs.highlightBlock(block); });
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+ } else {
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+ Array
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+ .from(document.querySelectorAll('code'))
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+ .forEach(function (block) { hljs.highlightBlock(block); });
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+ }
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+
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+ // Adding the hljs class gives code blocks the color css
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+ // even if highlighting doesn't apply
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+ Array
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+ .from(document.querySelectorAll('code'))
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+ .forEach(function (block) { block.classList.add('hljs'); });
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+
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+ Array.from(document.querySelectorAll("code.language-rust")).forEach(function (block) {
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+
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+ var code_block = block;
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+ var pre_block = block.parentNode;
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+ // hide lines
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+ var lines = code_block.innerHTML.split("\n");
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+ var first_non_hidden_line = false;
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+ var lines_hidden = false;
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+
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+ for (var n = 0; n < lines.length; n++) {
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+ if (lines[n].trim()[0] == hiding_character) {
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+ if (first_non_hidden_line) {
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+ lines[n] = "<span class=\"hidden\">" + "\n" + lines[n].replace(/(\s*)# ?/, "$1") + "</span>";
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+ }
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+ else {
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+ lines[n] = "<span class=\"hidden\">" + lines[n].replace(/(\s*)# ?/, "$1") + "\n" + "</span>";
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+ }
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+ lines_hidden = true;
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+ }
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+ else if (first_non_hidden_line) {
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+ lines[n] = "\n" + lines[n];
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+ }
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+ else {
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+ first_non_hidden_line = true;
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+ }
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+ }
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+ code_block.innerHTML = lines.join("");
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+
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+ // If no lines were hidden, return
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+ if (!lines_hidden) { return; }
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+
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+ var buttons = document.createElement('div');
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+ buttons.className = 'buttons';
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+ buttons.innerHTML = "<button class=\"fa fa-expand\" title=\"Show hidden lines\" aria-label=\"Show hidden lines\"></button>";
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+
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+ // add expand button
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+ pre_block.prepend(buttons);
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+
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+ pre_block.querySelector('.buttons').addEventListener('click', function (e) {
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+ if (e.target.classList.contains('fa-expand')) {
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+ var lines = pre_block.querySelectorAll('span.hidden');
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+
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+ e.target.classList.remove('fa-expand');
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+ e.target.classList.add('fa-compress');
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+ e.target.title = 'Hide lines';
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+ e.target.setAttribute('aria-label', e.target.title);
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+
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+ Array.from(lines).forEach(function (line) {
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+ line.classList.remove('hidden');
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+ line.classList.add('unhidden');
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+ });
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+ } else if (e.target.classList.contains('fa-compress')) {
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+ var lines = pre_block.querySelectorAll('span.unhidden');
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+
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+ e.target.classList.remove('fa-compress');
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+ e.target.classList.add('fa-expand');
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+ e.target.title = 'Show hidden lines';
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+ e.target.setAttribute('aria-label', e.target.title);
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+
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+ Array.from(lines).forEach(function (line) {
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+ line.classList.remove('unhidden');
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+ line.classList.add('hidden');
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+ });
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+ }
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+ });
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+ });
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+
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+ Array.from(document.querySelectorAll('pre code')).forEach(function (block) {
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+ var pre_block = block.parentNode;
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+ if (!pre_block.classList.contains('playpen')) {
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+ var buttons = pre_block.querySelector(".buttons");
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+ if (!buttons) {
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+ buttons = document.createElement('div');
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+ buttons.className = 'buttons';
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+ pre_block.prepend(buttons);
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+ }
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+
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+ var clipButton = document.createElement('button');
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+ clipButton.className = 'fa fa-copy clip-button';
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+ clipButton.title = 'Copy to clipboard';
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+ clipButton.setAttribute('aria-label', clipButton.title);
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+ clipButton.innerHTML = '<i class=\"tooltiptext\"></i>';
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+
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+ buttons.prepend(clipButton);
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+ }
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+ });
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+
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+ // Process playpen code blocks
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+ Array.from(document.querySelectorAll(".playpen")).forEach(function (pre_block) {
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+ // Add play button
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+ var buttons = pre_block.querySelector(".buttons");
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+ if (!buttons) {
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+ buttons = document.createElement('div');
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+ buttons.className = 'buttons';
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+ pre_block.prepend(buttons);
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+ }
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+
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+ var runCodeButton = document.createElement('button');
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+ runCodeButton.className = 'fa fa-play play-button';
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+ runCodeButton.hidden = true;
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+ runCodeButton.title = 'Run this code';
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+ runCodeButton.setAttribute('aria-label', runCodeButton.title);
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+
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+ var copyCodeClipboardButton = document.createElement('button');
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+ copyCodeClipboardButton.className = 'fa fa-copy clip-button';
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+ copyCodeClipboardButton.innerHTML = '<i class="tooltiptext"></i>';
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+ copyCodeClipboardButton.title = 'Copy to clipboard';
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+ copyCodeClipboardButton.setAttribute('aria-label', copyCodeClipboardButton.title);
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+
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+ buttons.prepend(runCodeButton);
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+ buttons.prepend(copyCodeClipboardButton);
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+
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+ runCodeButton.addEventListener('click', function (e) {
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+ run_rust_code(pre_block);
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+ });
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+
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+ let code_block = pre_block.querySelector("code");
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+ if (window.ace && code_block.classList.contains("editable")) {
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+ var undoChangesButton = document.createElement('button');
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+ undoChangesButton.className = 'fa fa-history reset-button';
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+ undoChangesButton.title = 'Undo changes';
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+ undoChangesButton.setAttribute('aria-label', undoChangesButton.title);
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+
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+ buttons.prepend(undoChangesButton);
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+
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+ undoChangesButton.addEventListener('click', function () {
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+ let editor = window.ace.edit(code_block);
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+ editor.setValue(editor.originalCode);
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+ editor.clearSelection();
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+ });
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+ }
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+ });
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+
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+ request
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+ .then(function (response) { return response.json(); })
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+ .then(function (response) {
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+ // get list of crates available in the rust playground
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+ let playground_crates = response.crates.map(function (item) { return item["id"]; });
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+ Array.from(document.querySelectorAll(".playpen")).forEach(function (block) {
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+ handle_crate_list_update(block, playground_crates);
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+ });
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+ });
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+
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+})();
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+
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+(function themes() {
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+ var html = document.querySelector('html');
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+ var themeToggleButton = document.getElementById('theme-toggle');
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+ var themePopup = document.getElementById('theme-list');
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+ var themeColorMetaTag = document.querySelector('meta[name="theme-color"]');
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+ var stylesheets = {
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+ ayuHighlight: document.querySelector("[href='ayu-highlight.css']"),
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+ tomorrowNight: document.querySelector("[href='tomorrow-night.css']"),
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+ highlight: document.querySelector("[href='highlight.css']"),
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+ };
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+
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+ function showThemes() {
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+ themePopup.style.display = 'block';
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+ themeToggleButton.setAttribute('aria-expanded', true);
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+ themePopup.querySelector("button#" + document.body.className).focus();
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+ }
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+
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+ function hideThemes() {
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+ themePopup.style.display = 'none';
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+ themeToggleButton.setAttribute('aria-expanded', false);
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+ themeToggleButton.focus();
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+ }
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+
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+ function set_theme(theme) {
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+ let ace_theme;
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+
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+ if (theme == 'coal' || theme == 'navy') {
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+ stylesheets.ayuHighlight.disabled = true;
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+ stylesheets.tomorrowNight.disabled = false;
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+ stylesheets.highlight.disabled = true;
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+
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+ ace_theme = "ace/theme/tomorrow_night";
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+ } else if (theme == 'ayu') {
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+ stylesheets.ayuHighlight.disabled = false;
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+ stylesheets.tomorrowNight.disabled = true;
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+ stylesheets.highlight.disabled = true;
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+
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+ ace_theme = "ace/theme/tomorrow_night";
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+ } else {
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+ stylesheets.ayuHighlight.disabled = true;
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+ stylesheets.tomorrowNight.disabled = true;
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+ stylesheets.highlight.disabled = false;
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+
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+ ace_theme = "ace/theme/dawn";
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+ }
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+
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+ setTimeout(function () {
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+ themeColorMetaTag.content = getComputedStyle(document.body).backgroundColor;
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+ }, 1);
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+
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+ if (window.ace && window.editors) {
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+ window.editors.forEach(function (editor) {
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+ editor.setTheme(ace_theme);
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+ });
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+ }
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+
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+ var previousTheme;
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+ try { previousTheme = localStorage.getItem('mdbook-theme'); } catch (e) { }
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+ if (previousTheme === null || previousTheme === undefined) { previousTheme = 'light'; }
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+
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+ try { localStorage.setItem('mdbook-theme', theme); } catch (e) { }
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+
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+ document.body.className = theme;
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+ html.classList.remove(previousTheme);
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+ html.classList.add(theme);
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+ }
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+
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+ // Set theme
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+ var theme;
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+ try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
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+ if (theme === null || theme === undefined) { theme = 'light'; }
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+
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+ set_theme(theme);
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+
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+ themeToggleButton.addEventListener('click', function () {
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+ if (themePopup.style.display === 'block') {
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+ hideThemes();
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+ } else {
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+ showThemes();
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+ }
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+ });
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+
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+ themePopup.addEventListener('click', function (e) {
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+ var theme = e.target.id || e.target.parentElement.id;
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+ set_theme(theme);
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+ });
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+
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+ themePopup.addEventListener('focusout', function(e) {
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+ // e.relatedTarget is null in Safari and Firefox on macOS (see workaround below)
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+ if (!!e.relatedTarget && !themePopup.contains(e.relatedTarget)) {
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+ hideThemes();
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+ }
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+ });
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+
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+ // Should not be needed, but it works around an issue on macOS & iOS: https://github.com/rust-lang-nursery/mdBook/issues/628
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+ document.addEventListener('click', function(e) {
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+ if (themePopup.style.display === 'block' && !themeToggleButton.contains(e.target) && !themePopup.contains(e.target)) {
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+ hideThemes();
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+ }
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+ });
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+
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+ document.addEventListener('keydown', function (e) {
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+ if (e.altKey || e.ctrlKey || e.metaKey || e.shiftKey) { return; }
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+ if (!themePopup.contains(e.target)) { return; }
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+
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+ switch (e.key) {
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+ case 'Escape':
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+ e.preventDefault();
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+ hideThemes();
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+ break;
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+ case 'ArrowUp':
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+ e.preventDefault();
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+ var li = document.activeElement.parentElement;
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+ if (li && li.previousElementSibling) {
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+ li.previousElementSibling.querySelector('button').focus();
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+ }
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+ break;
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+ case 'ArrowDown':
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+ e.preventDefault();
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+ var li = document.activeElement.parentElement;
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|
|
+ if (li && li.nextElementSibling) {
|
|
|
+ li.nextElementSibling.querySelector('button').focus();
|
|
|
+ }
|
|
|
+ break;
|
|
|
+ case 'Home':
|
|
|
+ e.preventDefault();
|
|
|
+ themePopup.querySelector('li:first-child button').focus();
|
|
|
+ break;
|
|
|
+ case 'End':
|
|
|
+ e.preventDefault();
|
|
|
+ themePopup.querySelector('li:last-child button').focus();
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ });
|
|
|
+})();
|
|
|
+
|
|
|
+(function sidebar() {
|
|
|
+ var html = document.querySelector("html");
|
|
|
+ var sidebar = document.getElementById("sidebar");
|
|
|
+ var sidebarLinks = document.querySelectorAll('#sidebar a');
|
|
|
+ var sidebarToggleButton = document.getElementById("sidebar-toggle");
|
|
|
+ var firstContact = null;
|
|
|
+
|
|
|
+ function showSidebar() {
|
|
|
+ html.classList.remove('sidebar-hidden')
|
|
|
+ html.classList.add('sidebar-visible');
|
|
|
+ Array.from(sidebarLinks).forEach(function (link) {
|
|
|
+ link.setAttribute('tabIndex', 0);
|
|
|
+ });
|
|
|
+ sidebarToggleButton.setAttribute('aria-expanded', true);
|
|
|
+ sidebar.setAttribute('aria-hidden', false);
|
|
|
+ try { localStorage.setItem('mdbook-sidebar', 'visible'); } catch (e) { }
|
|
|
+ }
|
|
|
+
|
|
|
+ function hideSidebar() {
|
|
|
+ html.classList.remove('sidebar-visible')
|
|
|
+ html.classList.add('sidebar-hidden');
|
|
|
+ Array.from(sidebarLinks).forEach(function (link) {
|
|
|
+ link.setAttribute('tabIndex', -1);
|
|
|
+ });
|
|
|
+ sidebarToggleButton.setAttribute('aria-expanded', false);
|
|
|
+ sidebar.setAttribute('aria-hidden', true);
|
|
|
+ try { localStorage.setItem('mdbook-sidebar', 'hidden'); } catch (e) { }
|
|
|
+ }
|
|
|
+
|
|
|
+ // Toggle sidebar
|
|
|
+ sidebarToggleButton.addEventListener('click', function sidebarToggle() {
|
|
|
+ if (html.classList.contains("sidebar-hidden")) {
|
|
|
+ showSidebar();
|
|
|
+ } else if (html.classList.contains("sidebar-visible")) {
|
|
|
+ hideSidebar();
|
|
|
+ } else {
|
|
|
+ if (getComputedStyle(sidebar)['transform'] === 'none') {
|
|
|
+ hideSidebar();
|
|
|
+ } else {
|
|
|
+ showSidebar();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ });
|
|
|
+
|
|
|
+ document.addEventListener('touchstart', function (e) {
|
|
|
+ firstContact = {
|
|
|
+ x: e.touches[0].clientX,
|
|
|
+ time: Date.now()
|
|
|
+ };
|
|
|
+ }, { passive: true });
|
|
|
+
|
|
|
+ document.addEventListener('touchmove', function (e) {
|
|
|
+ if (!firstContact)
|
|
|
+ return;
|
|
|
+
|
|
|
+ var curX = e.touches[0].clientX;
|
|
|
+ var xDiff = curX - firstContact.x,
|
|
|
+ tDiff = Date.now() - firstContact.time;
|
|
|
+
|
|
|
+ if (tDiff < 250 && Math.abs(xDiff) >= 150) {
|
|
|
+ if (xDiff >= 0 && firstContact.x < Math.min(document.body.clientWidth * 0.25, 300))
|
|
|
+ showSidebar();
|
|
|
+ else if (xDiff < 0 && curX < 300)
|
|
|
+ hideSidebar();
|
|
|
+
|
|
|
+ firstContact = null;
|
|
|
+ }
|
|
|
+ }, { passive: true });
|
|
|
+
|
|
|
+ // Scroll sidebar to current active section
|
|
|
+ var activeSection = sidebar.querySelector(".active");
|
|
|
+ if (activeSection) {
|
|
|
+ sidebar.scrollTop = activeSection.offsetTop;
|
|
|
+ }
|
|
|
+})();
|
|
|
+
|
|
|
+(function chapterNavigation() {
|
|
|
+ document.addEventListener('keydown', function (e) {
|
|
|
+ if (e.altKey || e.ctrlKey || e.metaKey || e.shiftKey) { return; }
|
|
|
+ if (window.search && window.search.hasFocus()) { return; }
|
|
|
+
|
|
|
+ switch (e.key) {
|
|
|
+ case 'ArrowRight':
|
|
|
+ e.preventDefault();
|
|
|
+ var nextButton = document.querySelector('.nav-chapters.next');
|
|
|
+ if (nextButton) {
|
|
|
+ window.location.href = nextButton.href;
|
|
|
+ }
|
|
|
+ break;
|
|
|
+ case 'ArrowLeft':
|
|
|
+ e.preventDefault();
|
|
|
+ var previousButton = document.querySelector('.nav-chapters.previous');
|
|
|
+ if (previousButton) {
|
|
|
+ window.location.href = previousButton.href;
|
|
|
+ }
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ });
|
|
|
+})();
|
|
|
+
|
|
|
+(function clipboard() {
|
|
|
+ var clipButtons = document.querySelectorAll('.clip-button');
|
|
|
+
|
|
|
+ function hideTooltip(elem) {
|
|
|
+ elem.firstChild.innerText = "";
|
|
|
+ elem.className = 'fa fa-copy clip-button';
|
|
|
+ }
|
|
|
+
|
|
|
+ function showTooltip(elem, msg) {
|
|
|
+ elem.firstChild.innerText = msg;
|
|
|
+ elem.className = 'fa fa-copy tooltipped';
|
|
|
+ }
|
|
|
+
|
|
|
+ var clipboardSnippets = new Clipboard('.clip-button', {
|
|
|
+ text: function (trigger) {
|
|
|
+ hideTooltip(trigger);
|
|
|
+ let playpen = trigger.closest("pre");
|
|
|
+ return playpen_text(playpen);
|
|
|
+ }
|
|
|
+ });
|
|
|
+
|
|
|
+ Array.from(clipButtons).forEach(function (clipButton) {
|
|
|
+ clipButton.addEventListener('mouseout', function (e) {
|
|
|
+ hideTooltip(e.currentTarget);
|
|
|
+ });
|
|
|
+ });
|
|
|
+
|
|
|
+ clipboardSnippets.on('success', function (e) {
|
|
|
+ e.clearSelection();
|
|
|
+ showTooltip(e.trigger, "Copied!");
|
|
|
+ });
|
|
|
+
|
|
|
+ clipboardSnippets.on('error', function (e) {
|
|
|
+ showTooltip(e.trigger, "Clipboard error!");
|
|
|
+ });
|
|
|
+})();
|
|
|
+
|
|
|
+(function scrollToTop () {
|
|
|
+ var menuTitle = document.querySelector('.menu-title');
|
|
|
+
|
|
|
+ menuTitle.addEventListener('click', function () {
|
|
|
+ document.scrollingElement.scrollTo({ top: 0, behavior: 'smooth' });
|
|
|
+ });
|
|
|
+})();
|
|
|
+
|
|
|
+(function autoHideMenu() {
|
|
|
+ var menu = document.getElementById('menu-bar');
|
|
|
+
|
|
|
+ var previousScrollTop = document.scrollingElement.scrollTop;
|
|
|
+
|
|
|
+ document.addEventListener('scroll', function () {
|
|
|
+ if (menu.classList.contains('folded') && document.scrollingElement.scrollTop < previousScrollTop) {
|
|
|
+ menu.classList.remove('folded');
|
|
|
+ } else if (!menu.classList.contains('folded') && document.scrollingElement.scrollTop > previousScrollTop) {
|
|
|
+ menu.classList.add('folded');
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!menu.classList.contains('bordered') && document.scrollingElement.scrollTop > 0) {
|
|
|
+ menu.classList.add('bordered');
|
|
|
+ }
|
|
|
+
|
|
|
+ if (menu.classList.contains('bordered') && document.scrollingElement.scrollTop === 0) {
|
|
|
+ menu.classList.remove('bordered');
|
|
|
+ }
|
|
|
+
|
|
|
+ previousScrollTop = document.scrollingElement.scrollTop;
|
|
|
+ }, { passive: true });
|
|
|
+})();
|