Initial Codeberg Pages publish: Doxygen HTML for v0.9.x main

codefolding.js

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+/*
+ @licstart  The following is the entire license notice for the JavaScript code in this file.
+
+ The MIT License (MIT)
+
+ Copyright (C) 1997-2026 by Dimitri van Heesch
+
+ Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ and associated documentation files (the "Software"), to deal in the Software without restriction,
+ including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be included in all copies or
+ substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+ @licend  The above is the entire license notice for the JavaScript code in this file
+ */
+
+let codefold = {
+  opened : true,
+
+  show_plus : function(el) {
+    if (el) {
+      el.classList.remove('minus');
+      el.classList.add('plus');
+    }
+  },
+
+  show_minus : function(el) {
+    if (el) {
+      el.classList.add('minus');
+      el.classList.remove('plus');
+    }
+  },
+
+  // toggle all folding blocks
+  toggle_all : function() {
+    if (this.opened) {
+      const foldAll = document.getElementById('fold_all');
+      this.show_plus(foldAll);
+      document.querySelectorAll('div[id^=foldopen]').forEach(el => el.style.display = 'none');
+      document.querySelectorAll('div[id^=foldclosed]').forEach(el => el.style.display = '');
+      document.querySelectorAll('div[id^=foldclosed] span.fold').forEach(el => this.show_plus(el));
+    } else {
+      const foldAll = document.getElementById('fold_all');
+      this.show_minus(foldAll);
+      document.querySelectorAll('div[id^=foldopen]').forEach(el => el.style.display = '');
+      document.querySelectorAll('div[id^=foldclosed]').forEach(el => el.style.display = 'none');
+    }
+    this.opened=!this.opened;
+  },
+
+  // toggle single folding block
+  toggle : function(id) {
+    const openEl = document.getElementById('foldopen'+id);
+    const closedEl = document.getElementById('foldclosed'+id);
+    if (openEl) {
+      openEl.style.display = openEl.style.display === 'none' ? '' : 'none';
+      const nextEl = openEl.nextElementSibling;
+      if (nextEl) {
+        nextEl.querySelectorAll('span.fold').forEach(el => this.show_plus(el));
+      }
+    }
+    if (closedEl) {
+      closedEl.style.display = closedEl.style.display === 'none' ? '' : 'none';
+    }
+  },
+
+  init : function() {
+    // add code folding line and global control
+    document.querySelectorAll('span.lineno').forEach((el, index) => {
+      el.style.paddingRight = '4px';
+      el.style.marginRight = '2px';
+      el.style.display = 'inline-block';
+      el.style.width = '54px';
+      el.style.background = 'linear-gradient(#808080,#808080) no-repeat 46px/2px 100%';
+      const span = document.createElement('span');
+      if (index === 0) { // add global toggle to first line
+        span.className = 'fold minus';
+        span.id = 'fold_all';
+        span.onclick = () => codefold.toggle_all();
+      } else {  // add vertical lines to other rows
+        span.className = 'fold'
+      }
+      el.appendChild(span);
+    });
+    // add toggle controls to lines with fold divs
+    document.querySelectorAll('div.foldopen').forEach(el => {
+      // extract specific id to use
+      const id = el.getAttribute('id').replace('foldopen','');
+      // extract start and end foldable fragment attributes
+      const start = el.getAttribute('data-start');
+      const end = el.getAttribute('data-end');
+      // replace normal fold span with controls for the first line of a foldable fragment
+      const firstFold = el.querySelector('span.fold');
+      if (firstFold) {
+        const span = document.createElement('span');
+        span.className = 'fold minus';
+        span.onclick = () => codefold.toggle(id);
+        firstFold.replaceWith(span);
+      }
+      // append div for folded (closed) representation
+      const closedDiv = document.createElement('div');
+      closedDiv.id = 'foldclosed'+id;
+      closedDiv.className = 'foldclosed';
+      closedDiv.style.display = 'none';
+      el.after(closedDiv);
+      // extract the first line from the "open" section to represent closed content
+      const line = el.children[0] ? el.children[0].cloneNode(true) : null;
+      if (line) {
+        // remove any glow that might still be active on the original line
+        line.classList.remove('glow');
+        if (start) {
+          // if line already ends with a start marker (e.g. trailing {), remove it
+          line.innerHTML = line.innerHTML.replace(new RegExp('\\s*'+start+'\\s*$','g'),'');
+        }
+        // replace minus with plus symbol
+        line.querySelectorAll('span.fold').forEach(span => {
+          codefold.show_plus(span);
+          // re-apply click handler as it is not copied with cloneNode
+          span.onclick = () => codefold.toggle(id);
+        });
+        // append ellipsis
+        const ellipsisLink = document.createElement('a');
+        ellipsisLink.href = "javascript:codefold.toggle('"+id+"')";
+        ellipsisLink.innerHTML = '…';
+        line.appendChild(document.createTextNode(' '+start));
+        line.appendChild(ellipsisLink);
+        line.appendChild(document.createTextNode(end));
+        // insert constructed line into closed div
+        closedDiv.appendChild(line);
+      }
+    });
+  },
+};
+/* @license-end */