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popups.md: add example implementations from the community code

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Karol Lewandowski 2022-07-29 16:08:10 +02:00
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topics/user_interface_components/popups.md
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@ -12,12 +12,12 @@ Popups can optionally display a title, are optionally movable and resizable (and
The [`JBPopupFactory`](upsource:///platform/platform-api/src/com/intellij/openapi/ui/popup/JBPopupFactory.java) interface allows you to create popups that display different kinds of components, depending on your specific needs.
The most commonly used methods are:
| Method | Description |
|---------------------------------|------------------------------------------------------------------------------------------------------------------|
| `createComponentPopupBuilder()` | Generic, allows showing any [Swing](https://docs.oracle.com/javase/tutorial/uiswing/start/index.html) component. |
| `createPopupChooserBuilder()` | For choosing one or more items from a plain `java.util.List`. |
| `createConfirmation()` | For choosing between two options, and performing different actions depending on which option is selected. |
| `createActionGroupPopup()` | Show actions from an [Action Group](grouping_action.md) and executes the action selected by the user. |
| Method | Description |
|---------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `createComponentPopupBuilder()` | Generic, allows showing any [Swing](https://docs.oracle.com/javase/tutorial/uiswing/start/index.html) component.<br/>Example: [`IntentionPreviewPopupUpdateProcessor`](upsource:///platform/lang-impl/src/com/intellij/codeInsight/intention/impl/preview/IntentionPreviewPopupUpdateProcessor.kt) creating a popup rendering the intention preview. |
| `createPopupChooserBuilder()` | For choosing one or more items from a plain `java.util.List`.<br/>Example: [`ShowMessageHistoryAction`](upsource:///platform/vcs-impl/src/com/intellij/openapi/vcs/actions/ShowMessageHistoryAction.kt) creating a popup with recent commit messages history in the commit message text area. |
| `createConfirmation()` | For choosing between two options, and performing different actions depending on which option is selected.<br/>Example: [`VariableInplaceRenamer`](upsource:///platform/lang-impl/src/com/intellij/refactoring/rename/inplace/VariableInplaceRenamer.java) creating confirmation popup after invalid variable name is provided in the inplace rename action. |
| `createActionGroupPopup()` | Show actions from an [Action Group](grouping_action.md) and executes the action selected by the user.<br/>Example: [`ShowRecentFindUsagesGroup`](upsource:///platform/lang-impl/src/com/intellij/find/impl/ShowRecentFindUsagesGroup.java) invoked via <menupath>Edit / Find Usages / Recent Find Usages</menupath> and showing recent find usages group popup. |
### Action Groups