slint/internal/compiler/widgets/material-base/spinbox.slint

// Copyright © SixtyFPS GmbH <info@slint.dev>
// SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-Slint-Royalty-free-1.1 OR LicenseRef-Slint-commercial

import { Palette, Typography, Icons } from "styling.slint";
import { SpinBoxBase } from "../common/spinbox-base.slint";

component SpinBoxButton inherits Rectangle {
    callback clicked <=> i-touch-area.clicked;

    in-out property <bool> pressed: self.enabled && i-touch-area.pressed;
    in-out property <bool> enabled <=> i-touch-area.enabled;
    in-out property <float> icon-opacity: 1;
    in-out property <brush> icon-fill: Palette.on-primary;

    width: root.height;

    i-background := Rectangle {
        width: 100%;
        height: 100%;
        border-radius: max(self.width, self.height) / 2;
        background: Palette.primary;
    }

    i-state-layer := Rectangle {
        x: 0;
        y: 0;
        opacity: 0;
        width: i-background.width;
        height: i-background.height;
        border-radius: i-background.border-radius;
        background: Palette.on-primary;

        animate opacity { duration: 250ms; easing: ease; }
     }

    Rectangle {
        width: 100%;
        height: 100%;

        @children
    }

    i-touch-area := TouchArea { }

    states [
        disabled when !root.enabled : {
            i-background.background: Palette.on-surface;
            i-background.opacity: 0.12;
            icon-opacity: 0.38;
            icon-fill: Palette.on-surface;
        }
        pressed when i-touch-area.pressed : {
            i-state-layer.opacity: 0.12;
        }
        hover when i-touch-area.has-hover : {
            i-state-layer.opacity: 0.08;
        }
    ]
}

// Increment and decrement a value in the given range.
export component SpinBox {
    callback edited(int /* value */);

    in property <int> minimum <=> i-base.minimum;
    in property <int> maximum <=> i-base.maximum;
    in property <bool> enabled <=> i-base.enabled;
    out property <bool> has-focus <=> i-text-input.has-focus;
    in-out property <int> value <=> i-base.value;

    forward-focus: i-text-input;
    horizontal-stretch: 1;
    vertical-stretch: 0;
    min-width: i-layout.min-width;
    min-height: max(56px, i-layout.min-height);
    accessible-role: spinbox;
    accessible-value: root.value;
    accessible-value-minimum: root.minimum;
    accessible-value-maximum: root.maximum;
    accessible-value-step: (root.maximum - root.minimum) / 100;

    i-base := SpinBoxBase {
        width: 100%;
        height: 100%;

        edited(value) => {
            i-text-input.text = value;
            root.edited(value);
        }
    }

    i-background := Rectangle {
        border-radius: 4px;
        border-width: 1px;
        border-color: Palette.outline;

        i-layout := HorizontalLayout {
            padding-top: 8px;
            padding-bottom: 8px;
            padding-left: 16px;
            padding-right: 12px;
            spacing: 16px;

            Rectangle {
                clip: true;

                i-text-input := TextInput {
                    vertical-alignment: center;
                    horizontal-alignment: left;
                    text: root.value;
                    // height: 100%;
                    color: Palette.on-surface;
                    // FIXME after Roboto font can be loaded
                    //font-family: Typography.body-large.font;
                    font-size: Typography.body-large.font-size;
                    font-weight: Typography.body-large.font-weight;
                    enabled: root.enabled;
                    horizontal-stretch: 1;

                    accepted => {
                        if (self.text == "") {
                            i-base.update-value(root.minimum);
                        }
                    }

                    edited => {
                        if (self.text == "") {
                            i-base.update-value(root.minimum);
                            return;
                        }

                        if (self.text.is-float()) {
                            i-base.update-value(root.value + 1);
                            return;
                        }

                        self.text = root.value;
                    }
                }

                i-touch-area := TouchArea {
                    clicked => {
                        i-text-input.focus();
                    }
                }
            }

            VerticalLayout {
                spacing: 4px;

                SpinBoxButton {
                    enabled: root.enabled;

                    Image {
                        x: (parent.width - self.width) / 2;
                        y: (parent.height - self.height) / 2;
                        source: Icons.arrow-drop-up;
                        opacity: parent.icon-opacity;
                        colorize: parent.icon-fill;
                    }

                    clicked => {
                        i-base.increment();
                    }
                }

                SpinBoxButton {
                    enabled: root.enabled;

                    Image {
                        x: (parent.width - self.width) / 2;
                        y: (parent.height - self.height) / 2;
                        source: Icons.arrow-drop-down;
                        opacity: parent.icon-opacity;
                        colorize: parent.icon-fill;
                    }

                    clicked => {
                        i-base.decrement();
                    }
                }
            }
        }
    }

    states [
        disabled when !root.enabled : {
            i-background.border-color: Palette.on-surface;
            i-background.opacity: 0.38;
            i-text-input.opacity: 0.38;
        }
        focused when root.has-focus : {
            i-background.border-width: 2px;
            i-background.border-color: Palette.primary;
            i-text-input.color: Palette.primary;
        }
    ]
}