slint/internal/compiler/widgets/cupertino-base/checkbox.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 { Typography, Palette, Icons } from "styling.slint";
import { FocusBorder } from "components.slint";

export component CheckBox {
    private property <color> text-color: Palette.foreground;

    callback toggled;

    in property <string> text;
    in property <bool> enabled <=> i-touch-area.enabled;
    out property <bool> has-focus: i-focus-scope.has-focus;
    in-out property <bool> checked;

    min-height: max(16px, i-layout.min-height);

    accessible-checkable: true;
    accessible-label: root.text;
    accessible-checked <=> root.checked;
    accessible-role: checkbox;

    i-layout := HorizontalLayout {
        padding-left: 8px;
        spacing: 6px;

        Rectangle {
            y: (parent.height - self.height) / 2;
            width: 14px;
            height: self.width;

            i-shadow := Rectangle {
                visible: !root.enabled || root.checked;
                x: (parent.width - self.width) / 2;
                y: (parent.height - self.height) / 2;
                width: parent.width + 2 * self.border-width;
                height: parent.height + 2 * self.border-width;
                border-radius: 4px;
                border-width: 1px;
                border-color: root.checked ? Palette.fake-primary-shadow : Palette.fake-shadow;
            }

            i-background := Rectangle {
                background: root.checked ? Palette.primary : Palette.surface;
                border-radius: 3px;
                border-width: root.checked ? 0 : 1px;
                border-color: root.checked ? transparent : Palette.fake-inner-shadow-strong;

                i-icon := Image {
                    image-fit: contain;
                    visible: root.checked;
                    source: Icons.check-mark;
                    colorize: Palette.on-primary;
                    width: 10px;

                    animate colorize { duration: 150ms; }
                }
            }

            animate background, border-color { duration: 150ms; }
        }

        if (root.text != "") : Text {
            text: root.text;
            color: root.text-color;
            font-size: Typography.body.font-size;
            font-weight: Typography.body.font-weight;
            vertical-alignment: center;
            horizontal-alignment: left;
        }
    }

    i-touch-area := TouchArea {
        clicked => {
            if (root.enabled) {
                root.checked = !root.checked;
                root.toggled();
            }
        }
    }

    i-focus-scope := FocusScope {
        x: 0;
        width: 0; // Do not react on clicks
        enabled <=> root.enabled;

        key-pressed(event) => {
            if (event.text == " " || event.text == "\n") {
                i-touch-area.clicked();
                return accept;
            }
            return reject;
        }
    }

    states [
        disabled when !root.enabled : {
            i-background.background: Palette.surface-disabled;
            i-shadow.border-color: Palette.fake-disabled-shadow;
            i-background.border-color: root.checked ? transparent : Palette.fake-inner-shadow;
            i-icon.colorize: Palette.foreground-disabled;
        }
        pressed when i-touch-area.pressed : {
        }
        hover when i-touch-area.has-hover : {
        }
        checked when root.checked && root.enabled : {
        }
    ]

    animate text-color { duration: 200ms; }
}