TextFieldSelectionManager.android.kt
/*
* Copyright 2021 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package androidx.compose.foundation.text.selection
import androidx.compose.foundation.ExperimentalFoundationApi
import androidx.compose.foundation.MagnifierStyle
import androidx.compose.foundation.magnifier
import androidx.compose.ui.Modifier
import androidx.compose.ui.input.pointer.PointerEvent
internal actual val PointerEvent.isShiftPressed: Boolean
get() = false
@OptIn(ExperimentalFoundationApi::class)
internal actual fun Modifier.textFieldMagnifier(manager: TextFieldSelectionManager): Modifier {
// Avoid tracking animation state on older Android versions that don't support magnifiers.
if (!MagnifierStyle.TextDefault.isSupported) {
return this
}
return animatedSelectionMagnifier(
magnifierCenter = { calculateSelectionMagnifierCenterAndroid(manager) },
platformMagnifier = { center ->
Modifier.magnifier(
sourceCenter = { center() },
// TODO(b/202451044) Support fisheye magnifier for eloquent.
style = MagnifierStyle.TextDefault
)
}
)
}