WIP: Refactor to compartmentalise treeview node

bbtreeview.js

@@ -30,7 +30,7 @@ BBTreeview.prototype.AddItem = function(options) {
   if (parentNode == null) {
     parentNode = a.Container;
   } else {
-    parentNode = parentNode.ChildNode;
+    parentNode = parentNode.GetChildNode();
   }
 
   const nodeHtml = a.generateNodeHtml(_options);
@@ -63,23 +63,24 @@ BBTreeview.prototype.AddItem = function(options) {
 
   // Setup checkbox events
   if (a.Options.ShowCheckbox) {
-    node.Checkbox.addEventListener("mousedown", function(e){
+    node.GetCheckbox().addEventListener("mousedown", function(e){
       e.stopPropagation();
       e.preventDefault();
 
-      node.Checked = !node.Checked;
+      // node.Checked = !node.Checked;
 
-      a.CheckNode(node, node.Checked);
+      // a.CheckNode(node, node.Checked);
+      node.Check(!node.IsChecked());
     });
 
-    node.Checkbox.addEventListener("click", function(e){
+    node.GetCheckbox().addEventListener("click", function(e){
       e.stopPropagation();
       e.preventDefault();
 
       // do nothing
     });
 
-    node.Checkbox.addEventListener("dblclick", function(e){
+    node.GetCheckbox().addEventListener("dblclick", function(e){
       e.stopPropagation();
       e.preventDefault();
 
@@ -107,6 +108,11 @@ BBTreeview.prototype.AddItem = function(options) {
       e.classList.remove("highlighted");
     });
 
+    // Don't show selection
+    if (!a.Options.ShowSelection) {
+      return;
+    }
+
     myNode.Container.classList.add("highlighted");
   });
 
@@ -124,13 +130,13 @@ BBTreeview.prototype.AddItem = function(options) {
   });
 
   // Invalidate state
-  if (node.ParentNode != null) {
+  if (node.GetParentNode() != null) {
-    if (node.ParentNode.classList.contains("c")) {
+    if (node.GetParentNode().classList.contains("c")) {
       node.Node.classList.add("hidden");
-    } else if (node.ParentNode.classList.contains("e")) {
+    } else if (node.GetParentNode().classList.contains("e")) {
       node.Node.classList.remove("hidden");
     } else {
-      node.ParentNode.classList.add("e");
+      node.GetParentNode().classList.add("e");
       node.Node.classList.remove("hidden");
     }
   }
@@ -146,17 +152,19 @@ BBTreeview.prototype.Remove = function(id) {
     return false;
   }
 
-  node.Node.parentNode.removeChild(node.Node);
+  node.Remove();
 
-  if (node.ParentNode != null) {
+  // node.Node.parentNode.removeChild(node.Node);
-    if (node.ParentNode.classList.contains("e")) {
-      node.ParentNode.classList.remove("e");
-    }
 
-    if (node.ParentNode.classList.contains("c")) {
+  // if (node.GetParentNode() != null) {
-      node.ParentNode.classList.remove("c");
+  //   if (node.GetParentNode().classList.contains("e")) {
-    }
+  //     node.GetParentNode().classList.remove("e");
-  }
+  //   }
+
+  //   if (node.GetParentNode().classList.contains("c")) {
+  //     node.GetParentNode().classList.remove("c");
+  //   }
+  // }
 
   return true;
 };
@@ -166,7 +174,8 @@ BBTreeview.prototype.Default = function() {
   return {
     TreeviewOptions: {
       ID: null,
-      ShowCheckbox: false
+      ShowCheckbox: false,
+      ShowSelection: true
     },
     TreeNodeOptions: {
       ID: null,
@@ -181,55 +190,61 @@ BBTreeview.prototype.Default = function() {
 };
 
 
-BBTreeview.prototype.CheckNode = function(node, value) {
+// BBTreeview.prototype.CheckNode = function(node, value) {
+//   const a = this;
+
+//   a.setNodeCheckbox(node.Node, value);
+
+//   // Update children
+//   node.Node.querySelectorAll("li").forEach(function(e) {
+//     a.setNodeCheckbox(e, value);
+//   });
+
+//   // Invalidate ParentNode
+//   // node.ParentNode = a.GetParentNode(node.Node);
+
+//   // Update parent state
+//   if (node.GetParentNode() != null) {
+//     let uncheckedCount = 0;
+//     node.GetParentNode().querySelectorAll("li").forEach(function(e) {
+//       if (e.classList.contains("x")) {
+//         return;
+//       }
+
+//       uncheckedCount++;
+//     });
+
+//     a.setNodeCheckbox(node.GetParentNode(), (uncheckedCount <= 0));
+//   }
+// };
+
+BBTreeview.prototype.Clear = function() {
   const a = this;
 
-  a.setNodeCheckbox(node.Node, value);
+  a.initialise(a.Options);
-
-  // Update children
-  node.Node.querySelectorAll("li").forEach(function(e) {
-    a.setNodeCheckbox(e, value);
-  });
-
-  // Invalidate ParentNode
-  node.ParentNode = a.GetParentNode(node.Node);
-
-  // Update parent state
-  if (node.ParentNode != null) {
-    let uncheckedCount = 0;
-    node.ParentNode.querySelectorAll("li").forEach(function(e) {
-      if (e.classList.contains("x")) {
-        return;
-      }
-
-      uncheckedCount++;
-    });
-
-    a.setNodeCheckbox(node.ParentNode, (uncheckedCount <= 0));
-  }
 };
 
-BBTreeview.prototype.CollapseNode = function(node) {
+// BBTreeview.prototype.CollapseNode = function(node) {
-  const a = this;
+//   const a = this;
 
-  node.Node.classList.remove("e");
+//   node.Node.classList.remove("e");
-  node.Node.classList.add("c");
+//   node.Node.classList.add("c");
 
-  a.GetChildNodes(node.Node).forEach(function(e) {
+//   a.GetChildNodes(node.Node).forEach(function(e) {
-    e.classList.add("hidden");
+//     e.classList.add("hidden");
-  });
+//   });
-};
+// };
 
-BBTreeview.prototype.ExpandNode = function(node) {
+// BBTreeview.prototype.ExpandNode = function(node) {
-  const a = this;
+//   const a = this;
 
-  node.Node.classList.remove("c");
+//   node.Node.classList.remove("c");
-  node.Node.classList.add("e");
+//   node.Node.classList.add("e");
 
-  a.GetChildNodes(node.Node).forEach(function(e) {
+//   a.GetChildNodes(node.Node).forEach(function(e) {
-    e.classList.remove("hidden");
+//     e.classList.remove("hidden");
-  });
+//   });
-};
+// };
 
 BBTreeview.prototype.Find = function(id) {
   const a = this;
@@ -240,65 +255,74 @@ BBTreeview.prototype.Find = function(id) {
     return null;
   }
 
-  let response = {
+  let treenode = new BBTreeviewNode(this);
-    ID: id,
+  treenode.Load(node[0]);
-    Node: node[0],
-    ParentNode: a.GetParentNode(node[0]),
-    ChildNode: a.getChildNode(node[0]),
-    Container: node[0].querySelectorAll("div.li")[0],
-    Label: node[0].querySelectorAll("span")[0],
-    Checked: node[0].classList.contains("x"),
-    Checkbox: (a.Options.ShowCheckbox ? node[0].querySelectorAll("div.icon.checkbox")[0] : null),
-    Value: node[0].getAttribute("data-bbtv-value")
-  };
 
-  // console.log(response);
+  console.log(treenode);
 
-  return response;
+  return treenode;
+
+  // let response = {
+  //   ID: id,
+  //   Node: node[0],
+  //   ParentNode: a.GetParentNode(node[0]),
+  //   ChildNode: a.getChildNode(node[0]),
+  //   Container: node[0].querySelectorAll("div.li")[0],
+  //   Label: node[0].querySelectorAll("span")[0],
+  //   Checked: node[0].classList.contains("x"),
+  //   Checkbox: (a.Options.ShowCheckbox ? node[0].querySelectorAll("div.icon.checkbox")[0] : null),
+  //   Value: node[0].getAttribute("data-bbtv-value")
+  // };
+
+  // // console.log(response);
+
+  // return response;
 };
 
-BBTreeview.prototype.GetChildNodes = function(node) {
+// BBTreeview.prototype.GetChildNodes = function(node) {
-  const a = this;
+//   const a = this;
 
-  const childNode = a.getChildNode(node);
+//   const childNode = a.getChildNode(node);
-  if (childNode == null) {
+//   if (childNode == null) {
-    return [];
+//     return [];
-  }
+//   }
 
-  let nodes = childNode.querySelectorAll("li");
+//   let nodes = childNode.querySelectorAll("li");
-  if (nodes.length <= 0) {
+//   if (nodes.length <= 0) {
-    return [];
+//     return [];
-  }
+//   }
 
-  let result = [];
+//   let result = [];
-  nodes.forEach(function(e) {
+//   nodes.forEach(function(e) {
-    if (typeof(e.parentNode) == "undefined") {
+//     if (typeof(e.parentNode) == "undefined") {
-      return;
+//       return;
-    }
+//     }
 
-    if (e.parentNode != childNode) {
+//     if (e.parentNode != childNode) {
-      return;
+//       return;
-    }
+//     }
 
-    result.push(e);
+//     result.push(e);
-  });
+//   });
 
-  return result;
+//   return result;
-};
+// };
 
-BBTreeview.prototype.GetParentNode = function(node) {
+// BBTreeview.prototype.GetParentNode = function(node) {
-  const a = this;
+//   const a = this;
 
-  return a.parentsUntilTagName(node, "li");
+//   return a.parentsUntilTagName(node, "li");
-};
+// };
 
 BBTreeview.prototype.Toggle = function(node) {
   const a = this;
 
   if (node.Node.classList.contains("c")) {
-    a.ExpandNode(node);
+    // a.ExpandNode(node);
+    node.Expand();
   } else if (node.Node.classList.contains("e")) {
-    a.CollapseNode(node);
+    // a.CollapseNode(node);
+    node.Collapse();
   } else {
     // do nothing
   }
@@ -360,16 +384,16 @@ BBTreeview.prototype.generateNodeHtml = function(options) {
   return html;
 };
 
-BBTreeview.prototype.getChildNode = function(node) {
+// BBTreeview.prototype.getChildNode = function(node) {
-  const a = this;
+//   const a = this;
 
-  let result = node.querySelectorAll("ul");
+//   let result = node.querySelectorAll("ul");
-  if (result.length <= 0) {
+//   if (result.length <= 0) {
-    return null;
+//     return null;
-  }
+//   }
 
-  return result[0];
+//   return result[0];
-};
+// };
 
 BBTreeview.prototype.getNode = function(el) {
   const a = this;
@@ -443,9 +467,228 @@ BBTreeview.prototype.parentsUntilTagName = function(el, tagName) {
   return node;
 };
 
-BBTreeview.prototype.setNodeCheckbox = function(el, value) {
+// BBTreeview.prototype.setNodeCheckbox = function(el, value) {
+//   const a = this;
+
+//   if (value) {
+//     if (!el.classList.contains("x")) {
+//       el.classList.add("x");
+//     }
+//   } else {
+//     if (el.classList.contains("x")) {
+//       el.classList.remove("x");
+//     }
+//   }
+// };
+
+
+
+
+
+
+function BBTreeviewNode(treeview)
+{
   const a = this;
 
+  a.Treeview = treeview;
+
+  a.initialise();
+};
+
+BBTreeviewNode.prototype.Load = function(node) {
+  const a = this;
+
+  a.ID = node.getAttribute("data-bbtv-id");
+  a.Node = node;
+
+  // a.ParentNode: a.GetParentNode(node[0]);
+  // a.ChildNode: a.getChildNode(node[0]);
+
+  a.Container = node.querySelectorAll("div.li")[0];
+  a.Label = node.querySelectorAll("span")[0];
+  // a.Checked = a.IsChecked();
+  // a.Checkbox = a.GetCheckbox();
+  a.Value = node.getAttribute("data-bbtv-value");
+};
+
+
+BBTreeviewNode.prototype.Check = function(value) {
+  const a = this;
+
+  a.setCheckbox(a.Node, value);
+
+  // Update children
+  a.Node.querySelectorAll("li").forEach(function(e) {
+    a.setCheckbox(e, value);
+  });
+
+  // Update parent state
+  if (a.GetParentNode() != null) {
+    let uncheckedCount = 0;
+    a.GetParentNode().querySelectorAll("li").forEach(function(e) {
+      if (e.classList.contains("x")) {
+        return;
+      }
+
+      uncheckedCount++;
+    });
+
+    a.setCheckbox(a.GetParentNode(), (uncheckedCount <= 0));
+  }
+};
+
+BBTreeviewNode.prototype.Collapse = function() {
+  const a = this;
+
+  a.Node.classList.remove("e");
+  a.Node.classList.add("c");
+
+  a.GetChildNodes().forEach(function(e) {
+    e.classList.add("hidden");
+  });
+};
+
+BBTreeviewNode.prototype.Expand = function() {
+  const a = this;
+
+  a.Node.classList.remove("c");
+  a.Node.classList.add("e");
+
+  a.GetChildNodes().forEach(function(e) {
+    e.classList.remove("hidden");
+  });
+};
+
+BBTreeviewNode.prototype.GetCheckbox = function() {
+  const a = this;
+
+  if (!a.Treeview.Options.ShowCheckbox) {
+    return null;
+  }
+
+  const checkboxes = a.Node.querySelectorAll("div.icon.checkbox");
+  if (typeof(checkboxes) == "undefined") {
+    return null;
+  }
+
+  return checkboxes[0];
+};
+
+BBTreeviewNode.prototype.GetChildNode = function() {
+  const a = this;
+
+  let result = a.Node.querySelectorAll("ul");
+  if (result.length <= 0) {
+    return null;
+  }
+
+  return result[0];
+};
+
+BBTreeviewNode.prototype.GetChildNodes = function() {
+  const a = this;
+
+  const childNode = a.GetChildNode();
+  if (childNode == null) {
+    return [];
+  }
+
+  let nodes = childNode.querySelectorAll("li");
+  if (nodes.length <= 0) {
+    return [];
+  }
+
+  let result = [];
+  nodes.forEach(function(e) {
+    if (typeof(e.parentNode) == "undefined") {
+      return;
+    }
+
+    if (e.parentNode != childNode) {
+      return;
+    }
+
+    result.push(e);
+  });
+
+  return result;
+};
+
+BBTreeviewNode.prototype.GetParentNode = function() {
+  const a = this;
+
+  return a.parentsUntilTagName(a.Node, "li");
+};
+
+BBTreeviewNode.prototype.IsChecked = function() {
+  const a = this;
+
+  if (!a.Treeview.Options.ShowCheckbox) {
+    return false;
+  }
+
+  return a.Node.classList.contains("x");
+};
+
+BBTreeviewNode.prototype.Remove = function() {
+  const a = this;
+
+  if (a.GetParentNode() != null) {
+    if (a.GetParentNode().classList.contains("e")) {
+      a.GetParentNode().classList.remove("e");
+    }
+
+    if (a.GetParentNode().classList.contains("c")) {
+      a.GetParentNode().classList.remove("c");
+    }
+  }
+
+  a.Node.parentNode.removeChild(a.Node);
+};
+
+BBTreeviewNode.prototype.initialise = function() {
+  const a = this;
+
+  a.ID = null;
+  a.ParentID = null;
+  a.Name = "";
+  a.Hint = "";
+  a.Value = "";
+  a.Icon = "folder";
+  a.Checked = false;
+};
+
+BBTreeviewNode.prototype.isTag = function(el, tagName) {
+  return (el.tagName.toLowerCase() == tagName);
+};
+
+BBTreeviewNode.prototype.parentsUntilTagName = function(el, tagName) {
+  const a = this;
+
+  let node = el;
+
+  while (true) {
+    node = node.parentNode;
+
+    if (typeof(node) == "undefined") {
+      break;
+    }
+
+    if (a.isTag(node, "ul")) {
+      if (node.classList.contains("bbtreeview")) {
+        return null;
+      }
+    }
+
+    if (a.isTag(node, tagName)) {
+      break;
+    }
+  }
+
+  return node;
+};
+
+BBTreeviewNode.prototype.setCheckbox = function(el, value) {
   if (value) {
     if (!el.classList.contains("x")) {
       el.classList.add("x");

bbtreeviewnode.js

@@ -0,0 +1,4 @@
+/**
+ * BBTreeview
+ * @version v0.1.0.223 (2023/09/08 2027)
+ */

demo-test.html

@@ -10,66 +10,156 @@
   <script src="http://cdn.hiimray.co.uk/8206c600-707c-469e-8d49-a76ae35782af/bootstrap/5.3.0/dist/js/bootstrap.bundle.min.js"></script>
   <link href="http://cdn.hiimray.co.uk/8206c600-707c-469e-8d49-a76ae35782af/bootstrap/5.3.0/dist/css/bootstrap.min.css" rel="stylesheet" />
 
-  <script src="bbtreeview.js"></script>
   <link href="bbtreeview.css" rel="stylesheet" />
+  <script src="bbtreeview.js"></script>
+  <script src="bbtreeviewnode.js"></script>
 
   <title></title>
 </head>
 <body>
 
-<div id="treeview1"></div>
+
+
+  <div class="column">
+
+    <div id="treeview1"></div>
+
+  </div>
+  <div class="column">
+    <div class="panel">
+
+      <p>Create demo treeview with checkboxes</p>
+      <button onclick="CreateTreeview()">Create Treeview</button>
+
+    </div>
+    <div class="panel">
+
+      <p>Clear treeview</p>
+      <button onclick="ClearTreeview()">Clear Treeview</button>
+
+    </div>
+    <div class="panel">
+
+      <p>Remove the "Program Files" treenode</p>
+      <button onclick="RemoveTreeNode()">Remove Treenode</button>
+
+    </div>
+
+
+  </div>
+
+  <style>
+
+body {
+  padding: 20px;
+}
+
+.column {
+  width: 50%; min-height:400px; float: left
+}
+
+.panel {
+  border-color:black;
+  border-style: solid;
+  border-width: 0 0 1px 0;
+  padding: 0 0 20px 0;
+  margin: 0 0 20px 0;
+}
+
+  </style>
+
 
 
   <script>
 
 var treeview1 = new BBTreeview({
   ID: "#treeview1",
-  ShowCheckbox: true
+  ShowCheckbox: true,
+  ShowSelection: true
 });
 
-var oldID = null;
-var newID = null;
 
-for (var i=0; i<5; i++) {
+function CreateTreeview(){
 
-newID = "F" + i;
+  treeview1.AddItem({
+    ID: "root",
+    Name: "C:\\"
+  });
 
-treeview1.AddItem({
+  let folders1 = [
-  // ID: "F" + Math.random(),
+    "AndroidSDK",
-  ID: newID,
+    "Game Files",
-  ParentID: oldID,
+    "Program Files",
-  Name: "Folder " + i,
+    "Program Files (x86)",
-  Hint: ""
+    "Users",
-});
+    "Windows"
+  ];
 
-oldID = newID;
+  for (let i=0; i<folders1.length; i++) {
+      treeview1.AddItem({
+      ID: "0_" + i,
+      ParentID: "root",
+      Name: folders1[i]
+    });
+  }
 
+  let folders12 = [
+    "7-Zip",
+    "Common Files",
+    "Git",
+    "Internet Explorer",
+    "MSBuild"
+  ];
+
+  for (let i=0; i<folders12.length; i++) {
+      treeview1.AddItem({
+      ID: "0_2_" + i,
+      ParentID: "0_2",
+      Name: folders12[i]
+    });
+  }
+
+  let folders13 = [
+    "Common Files",
+    "Internet Explorer"
+  ];
+
+  for (let i=0; i<folders13.length; i++) {
+      treeview1.AddItem({
+      ID: "0_3_" + i,
+      ParentID: "0_3",
+      Name: folders13[i]
+    });
+  }
+
+  let folders15 = [
+    "System",
+    "System32",
+    "Temp"
+  ];
+
+  for (let i=0; i<folders15.length; i++) {
+      treeview1.AddItem({
+      ID: "0_5_" + i,
+      ParentID: "0_5",
+      Name: folders15[i]
+    });
+  }
+
+  treeview1.AddItem({
+    ID: "0_2_3_0",
+    ParentID: "0_2_3",
+    Name: "en-GB"
+  });
 }
 
-// treeview1.Find("F1");
+function ClearTreeview() {
+  treeview1.Clear();
+}
 
-treeview1.AddItem({
+function RemoveTreeNode() {
-  ID: "F3_" + Math.random(),
+  treeview1.Remove("0_2");
-  ParentID: "F2",
+}
-  Name: "Folder " + Math.random(),
-  Hint: ""
-});
-
-treeview1.AddItem({
-  ID: "F3_" + Math.random(),
-  ParentID: "F2",
-  Name: "Folder " + Math.random(),
-  Hint: ""
-});
-
-treeview1.AddItem({
-  ID: "F3_" + Math.random(),
-  ParentID: "F2",
-  Name: "Folder " + Math.random(),
-  Hint: ""
-});
-
-// treeview1.Remove("F2");
 
   </script>