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Add support for autofilling login text fields (#293)

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* Add support for autofilling login text fields

Support autofilling login text fields via Android Autofill with the
experimental AndroidX Compose API for it.

Based on https://bryanherbst.com/2021/04/13/compose-autofill/ (with permission).

Signed-off-by: Hans Christian Schmitz <git@hcsch.eu>

* Move autofill implementation to designsystem library

Signed-off-by: Hans Christian Schmitz <git@hcsch.eu>

---------

Signed-off-by: Hans Christian Schmitz <git@hcsch.eu>
This commit is contained in:
Hans Christian Schmitz
2023-04-10 08:21:57 +02:00
committed by GitHub
parent ad0886391b
commit 30a0da74f0
2 changed files with 46 additions and 2 deletions
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32
libraries/designsystem/src/main/kotlin/io/element/android/libraries/designsystem/theme/components/TextField.kt
View File

@@ -29,8 +29,17 @@ import androidx.compose.material3.TextFieldColors
import androidx.compose.material3.TextFieldDefaults
import androidx.compose.runtime.Composable
import androidx.compose.runtime.remember
import androidx.compose.ui.ExperimentalComposeUiApi
import androidx.compose.ui.Modifier
import androidx.compose.ui.autofill.AutofillNode
import androidx.compose.ui.autofill.AutofillType
import androidx.compose.ui.composed
import androidx.compose.ui.focus.onFocusChanged
import androidx.compose.ui.graphics.Shape
import androidx.compose.ui.layout.boundsInWindow
import androidx.compose.ui.layout.onGloballyPositioned
import androidx.compose.ui.platform.LocalAutofill
import androidx.compose.ui.platform.LocalAutofillTree
import androidx.compose.ui.text.TextStyle
import androidx.compose.ui.text.input.VisualTransformation
import androidx.compose.ui.tooling.preview.Preview
@@ -118,3 +127,26 @@ private fun ContentToPreview() {
}
}
}
@OptIn(ExperimentalComposeUiApi::class)
fun Modifier.autofill(autofillTypes: List<AutofillType>, onFill: (String) -> Unit) = composed {
val autofillNode = AutofillNode(autofillTypes, onFill = onFill)
LocalAutofillTree.current += autofillNode
val autofill = LocalAutofill.current
this
.onGloballyPositioned {
// Inform autofill framework of where our composable is so it can show the popup in the right place
autofillNode.boundingBox = it.boundsInWindow()
}
.onFocusChanged {
autofill?.run {
if (it.isFocused) {
requestAutofillForNode(autofillNode)
} else {
cancelAutofillForNode(autofillNode)
}
}
}
}