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new_project_wizard.md: Chaining steps visualization

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Karol Lewandowski 2025-04-25 12:52:43 +02:00 committed by Karol Lewandowski
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topics/reference_guide/new_project_wizard.md
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@ -91,6 +91,8 @@ For convenience, the platform provides
which is a base step class that takes a parent step and delegates common property accessors to the parent. which is a base step class that takes a parent step and delegates common property accessors to the parent.
It allows sharing the [root step's](#root-step) properties by all descendant steps. It allows sharing the [root step's](#root-step) properties by all descendant steps.
### Chaining Steps
As mentioned before, all steps are rendered on a single screen. As mentioned before, all steps are rendered on a single screen.
Merging multiple steps into a chain displayed as a single screen step is achieved with Merging multiple steps into a chain displayed as a single screen step is achieved with
[`NewProjectWizardChainStep`](%gh-ic%/platform/platform-impl/src/com/intellij/ide/wizard/NewProjectWizardChainStep.kt). [`NewProjectWizardChainStep`](%gh-ic%/platform/platform-impl/src/com/intellij/ide/wizard/NewProjectWizardChainStep.kt).
@ -105,6 +107,25 @@ override fun createStep(context: WizardContext): NewProjectWizardStep {
} }
``` ```
All the steps above will be created inside a single `NewProjectWizardChainStep` and will be displayed (except the root step, which exists to hold shared data) in a single dialog page:
```plantuml
@startsalt
scale 1.2
title New Project
{+
[] First Step Input 1
First Step Input 2 | "value "
..
Second Step Input | ^Selection^
..
[] Third Step Input
--
[Cancel]|[Create]
}
@endsalt
```
### Root Step ### Root Step
The root project wizard step initializes a data holder and other properties shared with all descendant steps in the wizard. The root project wizard step initializes a data holder and other properties shared with all descendant steps in the wizard.