bb1b1beb79
- New Objects (Flexbox, Graph, Treeview) - Pluginsystem to add/remove functionality - Reworked the entire Object system, instead of one big Object Class we have multiple classes: Object, VisualObject, ChangeableObject - Instead of one big Frame Class we have multiple Frame Classes: BaseFrame, Frame, MovableFrame, ScrollableFrame, MonitorFrame, Flexbox - Removed the Animation Object, and added a animation plugin instead - Removed the Graphic Object and merged it's functionality with the image object - Updated currently existing objects
46 lines
1.2 KiB
Markdown
46 lines
1.2 KiB
Markdown
# onError
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### Description
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`onError(self, err)`
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This is a custom event which gets triggered as soon as the program catches an error.
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### Returns
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1. `object` The object in use
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### Usage
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* Add an onError event to a program:
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```lua
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local basalt = require("basalt")
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local main = basalt.createFrame()
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local aProgram = main:addProgram():execute("rom/programs/shell.lua")
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local function onProgramError(self, err)
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local errFrame = main:addFrame()
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:setSize(30, 10)
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:setPosition("parent.w / 2 - self.w / 2", "parent.h / 2 - self.h / 2")
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errFrame:addLabel()
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:setPosition(2, 3)
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:setSize("parent.w - 2", "parent.h - 3")
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:setText(err)
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errFrame:addButton()
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:setPosition("parent.w", 1)
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:setSize(1, 1)
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:setText("X")
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:onClick(function()
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errFrame:remove()
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end)
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end
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aProgram:onError(onProgramError)
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```
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In this example, a Program object is created, added to the mainFrame, and the "rom/programs/shell.lua" script is executed. The `onError` event is then attached to the program, and it will be triggered when the program catches an error. The event function, `onProgramError`, will create an error Frame displaying the error message and a button to close the error Frame.
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