// 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 } from "styling.slint";

// Single line text input field with Material Design Outline TextField look and feel.
export component LineEdit {
    callback accepted(string /* text */);
    callback edited(string /* text */);

    in property <length> font-size <=> i-text-input.font-size;
    in property <string> placeholder-text <=> i-placeholder.text;
    in property <bool> enabled <=> i-text-input.enabled;
    in property input-type <=> i-text-input.input-type;
    in property horizontal-alignment <=> i-text-input.horizontal-alignment;
    in property read-only <=> i-text-input.read-only;
    out property <bool> has-focus: i-text-input.has-focus;
    in-out property <string> text <=> i-text-input.text;

    min-width: max(120px, i-layout.min-width);
    min-height: max(56px, i-layout.min-height);
    forward-focus: i-text-input;

    i-background := Rectangle {
        width: 100%;
        height: 100%;
        border-radius: 4px;
        border-width: 1px;
        border-color: Palette.outline;
    }

    i-layout := HorizontalLayout {
        padding-left: 16px;
        padding-right: 16px;

        Rectangle {
            clip: true;

            i-placeholder := Text {
                width: 100%;
                height: 100%;
                color: Palette.outline-variant;
                font-size: Typography.body-large.font-size;
                font-weight: Typography.body-large.font-weight;
                visible: false;
                vertical-alignment: center;

                states [
                    empty when i-text-input.text == "" : {
                        visible: true;
                    }
                ]
            }

            i-text-input := TextInput {
                property <length> computed_x;
                property <length> padding-outer: i-layout.padding-left + i-layout.padding-right;

                x: min(0px, max(parent.width - self.width, self.computed_x));
                width: max(parent.width, self.preferred-width);
                height: 100%;
                color: Palette.on-surface;
                vertical-alignment: center;
                font-size: Typography.body-large.font-size;
                font-weight: Typography.body-large.font-weight;

                accepted => {
                    root.accepted(self.text);
                }

                edited => {
                    root.edited(self.text);
                }

                cursor-position-changed(cpos) => {
                    if (cpos.x + self.computed_x < self.padding-outer) {
                        self.computed_x = - cpos.x + self.padding-outer;
                    } else if (cpos.x + self.computed_x > parent.width - self.padding-outer) {
                        self.computed_x = parent.width - cpos.x - self.padding-outer;
                    }
                }
            }
        }
    }

    public function select-all() {
        i-text-input.select-all();
    }
    public function clear-selection() {
        i-text-input.clear-selection();
    }
    public function cut() {
        i-text-input.cut();
    }
    public function copy() {
        i-text-input.copy();
    }
    public function paste() {
        i-text-input.paste();
    }

    states [
        disabled when !root.enabled : {
            i-background.border-color: Palette.on-surface;
            i-background.opacity: 0.38;
            i-text-input.opacity: 0.38;
            i-placeholder.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;
        }
    ]
}