Material design treeview full#

So we will need to build some recursive components… Luckily, Vue enables us to do it out-of-box and you can see an example in the documentation.įor our treeview component, we will have an outer element (we will name it ) which holds all of the options and the items we want visualised in tree. Siblings are a group of nodes with the same parent.Īs we can see from above definitions, a node can have a value and some children, which are again nodes with possibly some children.Parent is the converse notion of a child.Child is a node directly connected to another node when moving away from the Root.The topmost node in a tree is called the Root node.Each node in a tree has zero or more child nodes A node is a structure which may contain a value or condition, or represent a separate data structure (which could be a tree of its own).Let’s write some of terminology used when talking about trees (source: Wikipedia article): Recursively, as a data type a tree is defined as a value (of some data type, possibly empty), together with a list of trees (possibly an empty list), the subtrees of its children Terminology Here is an extract from Wikipedia article about defining tree: When thinking about treeview, we will go back to how a tree data structure is defined in computer science literature.

Material design treeview full#

In order to not have this dependecy, optimise the component and get full control over the interaction details we will use render functions for developing our treeview. However, this requires having Vue Loader in place.

My preference when creating a component in Vue is to use single file components approach, and it is possible to create reusable treeview this way (the component from above was created this way). Regarding the design, the Material Design specification does not include a treeview component so we will try to utilize the existing Vuetify components as much as possible to get the consistent look and feel. Status icons for each of the items (like the green checkmark for the root above).Dynamically loaded subtrees, show loading spinner.Define icon for item or use file/folder icons.Moving items up/down -via command or drag’n’drop.Highlight current item under cursor, mark selected item and show additional commands.Let’s make a list out of this and some additional functionalities which can come handy such as checkboxes and others. We can see the structure, highlight currently selected item, have ability to collapse and expand a subtree, add or remove items, move the items up/down and drag’n’drop the whole subtrees to some other part of the tree.