From 2c21080f414b764340d7f80f2c2ff203389de774 Mon Sep 17 00:00:00 2001
From: Marcell Mars <ki.ber@kom.uni.st>
Date: Sat, 6 Feb 2021 12:46:14 +0100
Subject: [PATCH] added pagedjsCustomizations.js and no console.log

---
 static/js/pagedjsCustomizations.js | 96 ++++++++++++++++++++++++++++++
 1 file changed, 96 insertions(+)
 create mode 100644 static/js/pagedjsCustomizations.js

diff --git a/static/js/pagedjsCustomizations.js b/static/js/pagedjsCustomizations.js
new file mode 100644
index 0000000..0871eef
--- /dev/null
+++ b/static/js/pagedjsCustomizations.js
@@ -0,0 +1,96 @@
+var UID = {
+  _current: 0,
+  getNew: function(){
+    this._current++;
+    return this._current;
+  }
+};
+
+HTMLElement.prototype.pseudoStyle = function(element,prop,value){
+  var _this = this;
+  var _sheetId = "pseudoStyles";
+  var _head = document.head || document.getElementsByTagName('head')[0];
+  var _sheet = document.getElementById(_sheetId) || document.createElement('style');
+  _sheet.id = _sheetId;
+  var className = "pseudoStyle" + UID.getNew();
+  
+  _this.className +=  " "+className; 
+  
+  _sheet.innerHTML += " ."+className+":"+element+"{"+prop+":"+value+"}";
+  _head.appendChild(_sheet);
+  return this;
+};
+
+class Sandpoints extends Paged.Handler {
+  constructor(chunker, polisher, caller) {
+    super(chunker, polisher, caller);
+  }
+
+  beforeParsed(content) {
+    var d = {};
+    content.querySelectorAll('*').forEach((n, i)=> {
+      if (n.classList.length > 0 ) {
+        n.classList.forEach((c, i)=>{
+          if (c.startsWith("css-")) {
+            (c in d) ? d[c]++ : d[c] = 1
+            let s = ""
+            Object.keys(d).filter(ks => ks.startsWith(c.slice(0, -1))).forEach((t, i)=> {if (c >= t) {s += `${d[t]}.`}}) 
+            n.pseudoStyle('before','content', `"${s} "`)
+          }
+        })
+      }
+    })
+  }
+
+  afterPageLayout(pageElement, page, breakToken, chunker) {
+        // Find all split table elements
+        let tables = pageElement.querySelectorAll("table[data-split-from]");
+
+        tables.forEach((table) => {
+            // There is an edge case where the previous page table 
+            // has zero height (isn't visible).
+            // To avoid double header we will only add header if there is none.
+            let tableHeader = table.querySelector("thead");
+            if (tableHeader) {
+                return;
+            }
+
+            // Get the reference UUID of the node
+            let ref = table.dataset.ref;
+            // Find the node in the original source
+            let sourceTable = chunker.source.querySelector("[data-ref='" + ref + "']");
+
+            // Find if there is a header
+            let sourceHeader = sourceTable.querySelector("thead");
+            if (sourceHeader) {
+                // Clone the header element
+                let clonedHeader = sourceHeader.cloneNode(true);
+                // Insert the header at the start of the split table
+                table.insertBefore(clonedHeader, table.firstChild);
+            }
+        });
+
+        // Find all tables
+        tables = pageElement.querySelectorAll("table");
+
+        // special case which might not fit for everyone
+        tables.forEach((table) => {
+            // if the table has no rows in body, hide it.
+            // This happens because my render engine creates empty tables.
+            let sourceBody = table.querySelector("tbody > tr");
+            if (!sourceBody) {
+                console.log("Table was hidden, because it has no rows in tbody.");
+                table.style.visibility = "hidden";
+                table.style.position = "absolute";
+
+                var lineSpacer = table.nextSibling;
+                if (lineSpacer) {
+                    lineSpacer.style.visibility = "hidden";
+                    lineSpacer.style.position = "absolute";
+                }
+            }
+        });
+  }
+}
+
+Paged.registerHandlers(Sandpoints);