| /* |
| * Copyright 2019 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.ui.material |
| |
| import androidx.compose.Composable |
| import androidx.compose.unaryPlus |
| import androidx.ui.core.CurrentTextStyleProvider |
| import androidx.ui.core.Dp |
| import androidx.ui.core.Text |
| import androidx.ui.core.dp |
| import androidx.ui.engine.geometry.Shape |
| import androidx.ui.foundation.Clickable |
| import androidx.ui.foundation.SimpleImage |
| import androidx.ui.foundation.shape.corner.CircleShape |
| import androidx.ui.graphics.Color |
| import androidx.ui.layout.Container |
| import androidx.ui.layout.DpConstraints |
| import androidx.ui.layout.Padding |
| import androidx.ui.layout.Row |
| import androidx.ui.layout.WidthSpacer |
| import androidx.ui.graphics.Image |
| import androidx.ui.material.ripple.Ripple |
| import androidx.ui.material.surface.Surface |
| import androidx.ui.text.TextStyle |
| |
| /** |
| * A floating action button (FAB) is a [Button] to represents the primary action of a screen. |
| * |
| * By default it adds the circle shape, the [FabSize] size and the centering for the content. |
| * |
| * @sample androidx.ui.material.samples.FloatingActionButtonCustomContent |
| * |
| * @see FloatingActionButton overload for the variants with an icon or an icon and a text. |
| * |
| * @param onClick will be called when user clicked on the button. The button will be disabled |
| * when it is null. |
| * @param minSize Minimum size of the button. Defaults to [FabSize] |
| * @param shape Defines the Button's shape as well its shadow. When null is provided it uses |
| * the [Shapes.button] from [ShapeAmbient]. |
| * @param color The background color |
| * @param elevation The z-coordinate at which to place this button. This controls the size |
| * of the shadow below the button. |
| */ |
| @Composable |
| fun FloatingActionButton( |
| onClick: (() -> Unit)? = null, |
| minSize: Dp = FabSize, |
| shape: Shape = CircleShape, |
| color: Color = (+MaterialTheme.colors()).primary, |
| elevation: Dp = 6.dp, |
| children: @Composable() () -> Unit |
| ) { |
| Surface(shape = shape, color = color, elevation = elevation) { |
| Ripple(bounded = true, enabled = onClick != null) { |
| Clickable(onClick) { |
| Container(constraints = DpConstraints(minWidth = minSize, minHeight = minSize)) { |
| CurrentTextStyleProvider((+MaterialTheme.typography()).button, children) |
| } |
| } |
| } |
| } |
| } |
| |
| /** |
| * A floating action button (FAB) is a [Button] to represents the primary action of a screen. |
| * |
| * It draws the [icon] in the center of the FAB with [FabSize] size. |
| * |
| * @sample androidx.ui.material.samples.FloatingActionButtonSimple |
| * |
| * @see FloatingActionButton overload for the variants with a custom content or an icon and a text. |
| * |
| * @param icon Image to draw in the center. |
| * @param onClick will be called when user clicked on the button. The button will be disabled |
| * when it is null. |
| * @param color The background color |
| * @param elevation The z-coordinate at which to place this button. This controls the size |
| * of the shadow below the button. |
| */ |
| @Composable |
| fun FloatingActionButton( |
| icon: Image, |
| onClick: (() -> Unit)? = null, |
| shape: Shape = CircleShape, |
| color: Color = (+MaterialTheme.colors()).primary, |
| elevation: Dp = 6.dp |
| ) { |
| FloatingActionButton(onClick = onClick, shape = shape, color = color, elevation = elevation) { |
| SimpleImage(image = icon) |
| } |
| } |
| |
| /** |
| * An extended [FloatingActionButton] with an [icon] and a [text]. |
| * |
| * @sample androidx.ui.material.samples.FloatingActionButtonExtended |
| * |
| * @see FloatingActionButton overload for the variants with a custom content or an icon. |
| * |
| * @param text Text to display. |
| * @param icon Image to draw to the left of the text. It is optional. |
| * @param textStyle Optional [TextStyle] to apply for a [text] |
| * @param onClick will be called when user clicked on the button. The button will be disabled |
| * when it is null. |
| * @param color The background color |
| * @param elevation The z-coordinate at which to place this button. This controls the size |
| * of the shadow below the button. |
| */ |
| @Composable |
| fun FloatingActionButton( |
| text: String, |
| icon: Image? = null, |
| textStyle: TextStyle? = null, |
| onClick: (() -> Unit)? = null, |
| color: Color = (+MaterialTheme.colors()).primary, |
| elevation: Dp = 6.dp |
| ) { |
| FloatingActionButton( |
| onClick = onClick, |
| color = color, |
| elevation = elevation, |
| minSize = ExtendedFabHeight) { |
| if (icon == null) { |
| Padding(left = ExtendedFabTextPadding, right = ExtendedFabTextPadding) { |
| Text(text = text, style = textStyle) |
| } |
| } else { |
| Padding(left = ExtendedFabIconPadding, right = ExtendedFabTextPadding) { |
| Row { |
| SimpleImage(image = icon) |
| WidthSpacer(width = ExtendedFabIconPadding) |
| Text(text = text, style = textStyle) |
| } |
| } |
| } |
| } |
| } |
| |
| val FabSize = 56.dp |
| val ExtendedFabHeight = 48.dp |
| val ExtendedFabIconPadding = 12.dp |
| val ExtendedFabTextPadding = 20.dp |