add extensions

2024-03-21 00:29:18 +08:00
parent 4dfe6bdad6
commit 74c343770f
92 changed files with 15715 additions and 0 deletions
@@ -0,0 +1,93 @@
+/**
+ * reveal-header
+ * A filter that adds header text and logo.
+ * 
+ * MIT License
+ * Copyright (c) 2023 Shafayet Khan Shafee.
+ */
+ 
+ function add_sc_sb_title() {
+   
+   function get_title() {
+    var h1_arr = [];
+    var h2_arr = [];
+  
+    Reveal.getSlides().forEach(el => {
+      if (!el.matches('#title-slide')) {
+       var h1 = el.querySelector('.title-slide h1')?.innerText;
+       var h2 = el.querySelector('.title-slide h2')?.innerText;
+       h1_arr.push(h1);
+       h2_arr.push(h2);
+      };
+    });
+    
+    return [h1_arr, h2_arr]
+  };
+    
+  function fill_array(ar) {
+    let last_val = ar[0] || " ";
+    for (let i = 1; i < ar.length; i++) {
+      if (typeof ar[i] === 'undefined') {
+        ar[i] = last_val;
+      } else {
+        last_val = ar[i];
+      }
+    }
+    return ar
+  };
+  
+  
+  if (Reveal.isReady()) {
+  
+    if (document.querySelector('div.reveal-header img').getAttribute('src').length == 0) {
+      document.querySelector('div.reveal-header').classList.add('no-logo')
+    }
+  
+    var [h1_array, h2_array] = get_title();
+    var filled_h1_array = fill_array(h1_array);
+    var filled_h2_array = fill_array(h2_array);
+    
+    Reveal.getSlides().forEach((el, idx) => {
+      if (!el.matches('#title-slide')) {
+        el.setAttribute('data-sc-title', filled_h1_array[(idx - 1)])
+        el.setAttribute('data-sb-title', filled_h2_array[(idx - 1)])
+      }
+    });
+  
+    Reveal.on( 'slidechanged', event => {
+      let sp = Reveal.getSlidesElement().querySelector('.stack.present');
+      
+      if (sp != null) {
+        let header = document.querySelector("div.reveal-header");
+        
+        // handling h1 section title (`.sc-title`)
+        var section_text = event.currentSlide.getAttribute('data-sc-title') || " ";
+        if (event.currentSlide.matches('.title-slide.level1')) {
+          header.querySelector('.sc-title p').innerText = ""; 
+        } else if (event.currentSlide.matches('.title-slide.level2')) {
+          header.querySelector('.sc-title p').innerText = section_text;  
+        } else {
+          header.querySelector('.sc-title p').innerText = section_text;
+        };
+        
+        // handling h2 section title (`.sb-title`)
+        var sbsection_text = event.currentSlide.getAttribute('data-sb-title') || " ";
+        if (event.currentSlide.matches('.title-slide.level1')) {
+          header.querySelector('.sb-title p').innerText = "";
+        } else if (event.currentSlide.matches('.title-slide.level2')) {
+          header.querySelector('.sb-title p').innerText = "";
+        } else {
+          header.querySelector('.sb-title p').innerText = sbsection_text;
+        };
+      };
+    });
+  };
+};
+
+
+window.addEventListener("load", (event) => {
+  add_sc_sb_title();
+});
+
+
+