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# Configuring the Asset Browser

The entry point for extending the Katana asset browser is the method configureAssetBrowser(), which must be implemented in your AssetWidgetDelegate plug-in. configureAssetBrowser() takes a single browser argument, which is the Katana Asset Browser to configure. At its core the Asset Browser is a Qt dialog window (QDialog) with additional utility methods. The most useful of these are:

• addBrowserTab()
Add a new tab to the Asset Browser.

Note: The custom browser tab added using addBrowserTab() should emit a selectionValidSignal signal to indicate a change in selection validity and therefore the state of the Asset Browser Accept button, for example:
browserTab.selectionValidSignal.emit(browserTab.selectionValid())
The browser dialog listens for this signal from the currently viewed tab and sets the enabled state of its Accept button accordingly.

• addFileBrowserTab()
Add a standard file browser tab to the Asset Browser.

• getCurrentIndex()
Return the index of the currently open tab.

• setCurrentIndex()
Set the currently open tab.

The base implementation of configureAssetBrowser() sets the window title from the given hints and creates a file browser tab. If you want to avoid creating a file browser tab, implement a shouldAddFileTabToAssetBrowser() method with a return value of False.

The following methods exist but need minimal implementation:

• setSaveMode()
Tells us whether the browser is invoked for opening a file or for saving one. If saveMode is True, then the browser has been opened for saving a file.

• selectionValid()
Checks whether the current asset path refers to a valid asset. For a file browser dialog window this returns false if a chosen path does not exist.

• setLocation()
Sets the default location with which to open the browser.

• getExtraOptions()
This is used to support a versionUp and a publish option for LookFileBake and create a new Katana file. If those options are displayed in the custom user interface Katana retrieves them using this method:

{"versionUp" : "False" / "True", "publish" : "False" / "True" }

Note: The function getExtraOptions() should return a dict.