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Basalt2/docs/references/elements/BaseElement.md
2025-02-16 19:31:38 +00:00

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# BaseElement : PropertySystem
The base class for all UI elements in Basalt
## Properties
|Property|Type|Default|Description|
|---|---|---|---|
|type|string|BaseElement|The type identifier of the element
|id|string|BaseElement|The unique identifier for the element
|name|string|BaseElement|The name of the element
|eventCallbacks|table|{}|Table containing all registered event callbacks
## Functions
|Method|Returns|Description|
|---|---|---|
|[BaseElement.listenTo](#BaseElement.listenTo)|-|
|[BaseElement.new](#BaseElement.new)|table|
|[BaseElement:destroy](#BaseElement:destroy)|-|
|[BaseElement:dispatchEvent](#BaseElement:dispatchEvent)|boolean?|
|[BaseElement:fireEvent](#BaseElement:fireEvent)|table|
|[BaseElement:getBaseFrame](#BaseElement:getBaseFrame)|-|
|[BaseElement:handleEvent](#BaseElement:handleEvent)|boolean?|
|[BaseElement:init](#BaseElement:init)|table|
|[BaseElement:isType](#BaseElement:isType)|boolean|
|[BaseElement:listenEvent](#BaseElement:listenEvent)|table|
|[BaseElement:postInit](#BaseElement:postInit)|table|
|[BaseElement:registerCallback](#BaseElement:registerCallback)|table|
|[BaseElement:updateRender](#BaseElement:updateRender)|-|
## BaseElement.listenTo(class, eventName)
Registers an event that this class can listen to
### Parameters
* `class` `table` The class to add the event to
* `eventName` `string` The name of the event to register
### Usage
```lua
BaseElement.listenTo(MyClass, "mouse_click")
```
## BaseElement.new(props, basalt)
Creates a new BaseElement instance
### Parameters
* `props` `table` The properties to initialize the element with
* `basalt` `table` The basalt instance
### Returns
* `table` `The` newly created BaseElement instance
### Usage
```lua
local element = BaseElement.new("myId", basalt)
```
## BaseElement:destroy()
## BaseElement:dispatchEvent(event)
Handles all events
@vararg any The arguments for the event
### Parameters
* `event` `string` The event to handle
### Returns
* `boolean?` `handled` Whether the event was handled
## BaseElement:fireEvent(event, ...)
Triggers an event and calls all registered callbacks
### Parameters
* `event` `string` The event to fire
* `...` `any` Additional arguments to pass to the callbacks
### Returns
* `table` `self` The BaseElement instance
### Usage
```lua
element:fireEvent("mouse_click", 1, 2)
```
## BaseElement:getBaseFrame()
## BaseElement:handleEvent(event)
The default event handler for all events
@vararg any The arguments for the event
### Parameters
* `event` `string` The event to handle
### Returns
* `boolean?` `handled` Whether the event was handled
## BaseElement:init(props, basalt)
Initializes the BaseElement instance
### Parameters
* `props` `table` The properties to initialize the element with
* `basalt` `table` The basalt instance
### Returns
* `table` `self` The initialized instance
## BaseElement:isType(type)
Checks if the element is a specific type
### Parameters
* `type` `string` The type to check for
### Returns
* `boolean` `Whether` the element is of the specified type
## BaseElement:listenEvent(eventName, enable?)
Enables or disables event listening for a specific event
### Parameters
* `eventName` `string` The name of the event to listen for
* `enable` *(optional)* `boolean` Whether to enable or disable the event (default: true)
### Returns
* `table` `self` The BaseElement instance
### Usage
```lua
element:listenEvent("mouse_click", true)
```
## BaseElement:postInit()
Post initialization hook
### Returns
* `table` `self` The BaseElement instance
## BaseElement:registerCallback(event, callback)
Registers a callback function for an event
### Parameters
* `event` `string` The event to register the callback for
* `callback` `function` The callback function to register
### Returns
* `table` `self` The BaseElement instance
### Usage
```lua
element:registerCallback("mouse_click", function(self, ...) end)
```
## BaseElement:updateRender()
Requests a render update for this element
### Usage
```lua
element:updateRender()
```