119 lines
4.2 KiB
Markdown
119 lines
4.2 KiB
Markdown
# BaseElement : PropertySystem
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The base class for all UI elements in Basalt. This class provides basic properties and event handling functionality.
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## Properties
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|Property|Type|Default|Description|
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|---|---|---|---|
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|type|string|BaseElement|The type identifier of the element
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|id|string|BaseElement|The unique identifier for the element
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|name|string|BaseElement|The name of the element
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|eventCallbacks|table|BaseElement|The event callbacks for the element
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## Functions
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|Method|Returns|Description|
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|---|---|---|
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|[BaseElement.defineEvent](#baseelement-defineevent)|-|Registers a new event listener for the element (on class level)
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|[BaseElement.registerEventCallback](#baseelement-registereventcallback)|-|Registers a new event callback for the element (on class level)
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|[BaseElement:destroy](#baseelement-destroy)|-|Destroys the element and cleans up all references
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|[BaseElement:fireEvent](#baseelement-fireevent)|table|Triggers an event and calls all registered callbacks
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|[BaseElement:getBaseFrame](#baseelement-getbaseframe)|BaseFrame|Returns the base frame of the element
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|[BaseElement:isType](#baseelement-istype)|boolean|Checks if the element is a specific type
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|[BaseElement:listenEvent](#baseelement-listenevent)|table|Enables or disables event listening for a specific event
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|[BaseElement:onChange](#baseelement-onchange)|table|Observes a property and calls a callback when it changes
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|[BaseElement:registerCallback](#baseelement-registercallback)|table|Registers a callback function
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|[BaseElement:updateRender](#baseelement-updaterender)|table|Requests a render update for this element
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## Protected Functions
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|Method|Returns|Description|
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|BaseElement:dispatchEvent|boolean?|Handles all events
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|BaseElement:handleEvent|boolean?|The default event handler for all events
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|BaseElement:init|table|Initializes the BaseElement instance
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|BaseElement:postInit|table|Post initialization
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## BaseElement.defineEvent(class, eventName, requiredEvent?)
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Registers a new event listener for the element (on class level)
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### Parameters
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* `class` `table` The class to register
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* `eventName` `string` The name of the event to register
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* `requiredEvent` *(optional)* `string` The name of the required event (optional)
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## BaseElement.registerEventCallback(class, callbackName, ...)
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Registers a new event callback for the element (on class level)
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### Parameters
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* `class` `table` The class to register
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* `callbackName` `string` The name of the callback to register
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* `...` `string` The names of the events to register the callback for
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## BaseElement:destroy()
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Destroys the element and cleans up all references
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## BaseElement:fireEvent(event, ...)
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Triggers an event and calls all registered callbacks
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### Parameters
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* `event` `string` The event to fire
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* `...` `any` Additional arguments to pass to the callbacks
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### Returns
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* `table` `self` The BaseElement instance
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## BaseElement:getBaseFrame()
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Returns the base frame of the element
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### Returns
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* `BaseFrame` `BaseFrame` The base frame of the element
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## BaseElement:isType(type)
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Checks if the element is a specific type
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### Parameters
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* `type` `string` The type to check for
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### Returns
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* `boolean` `isType` Whether the element is of the specified type
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## BaseElement:listenEvent(eventName, enable?)
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Enables or disables event listening for a specific event
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### Parameters
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* `eventName` `string` The name of the event to listen for
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* `enable` *(optional)* `boolean` Whether to enable or disable the event (default: true)
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### Returns
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* `table` `self` The BaseElement instance
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## BaseElement:onChange(property, callback)
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Observes a property and calls a callback when it changes
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### Parameters
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* `property` `string` The property to observe
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* `callback` `function` The callback to call when the property changes
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### Returns
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* `table` `self` The BaseElement instance
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## BaseElement:registerCallback(event, callback)
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Registers a callback function for an event
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### Parameters
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* `event` `string` The event to register the callback for
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* `callback` `function` The callback function to register
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### Returns
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* `table` `self` The BaseElement instance
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## BaseElement:updateRender()
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Requests a render update for this element
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### Returns
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* `table` `self` The BaseElement instance
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