// Copyright © SixtyFPS GmbH <info@slint-ui.com>
// SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-Slint-commercial

// cSpell: ignore combobox spinbox

import { LineEditInner, TextEdit, AboutSlint } from "../common/common.slint";
import { StyleMetrics, ScrollView  } from "std-widgets-impl.slint";
export { StyleMetrics, ScrollView, TextEdit, AboutSlint, AboutSlint as AboutSixtyFPS }

// FIXME: the font-size should be removed but is required right now to compile the printer-demo
export Button := NativeButton {
    property<length> font-size;
    accessible-checkable <=> checkable;
    accessible-checked <=> checked;
    accessible-label <=> text;
    accessible-role: button;
    checkable: false;
    enabled: true;
}

export StandardButton := NativeButton {
    property<StandardButtonKind> kind <=> self.standard-button-kind;
    accessible-checkable <=> checkable;
    accessible-checked <=> checked;
    accessible-label <=> text;
    accessible-role: button;
    is-standard-button: true;
    checkable: false;
}

export CheckBox := NativeCheckBox {
    accessible-checkable: true;
    accessible-checked <=> checked;
    accessible-label <=> text;
    accessible-role: checkbox;
}
export SpinBox := NativeSpinBox {
    property<length> font-size;

    accessible-role: spinbox;
    accessible-value: value;
    accessible-value-minimum: minimum;
    accessible-value-maximum: maximum;
    accessible-value-step: (maximum - minimum) / 100;

}

export Slider := NativeSlider {
    accessible-role: slider;
    accessible-value: value;
    accessible-value-minimum: minimum;
    accessible-value-maximum: maximum;
    accessible-value-step: (maximum - minimum) / 100;

    property <bool> has-focus: fs.has-focus;

    fs := FocusScope {
        width: 0px;

        key-pressed(event) => {
            if (root.enabled && event.text == Keys.RightArrow) {
                root.value = Math.min(root.value + 1, root.maximum);
                accept
            } else if (root.enabled && event.text == Keys.LeftArrow) {
                root.value = Math.max(root.value - 1, root.minimum);
                accept
            } else {
                reject
            }
        }
    }

}

export GroupBox := NativeGroupBox {
    GridLayout {
        padding-left: root.native-padding-left;
        padding-right: root.native-padding-right;
        padding-top: root.native-padding-top;
        padding-bottom: root.native-padding-bottom;
        @children
    }
}

export LineEdit := NativeLineEdit {
    property <length> font-size <=> inner.font-size;
    property <string> text <=> inner.text;
    property <string> placeholder-text <=> inner.placeholder-text;
    property input-type <=> inner.input-type;
    property horizontal-alignment <=> inner.horizontal-alignment;
    property read-only <=> inner.read-only;
    enabled: true;
    has-focus: inner.has-focus;
    forward-focus: inner;
    callback accepted <=> inner.accepted;
    callback edited <=> inner.edited;
    horizontal-stretch: 1;
    vertical-stretch: 0;

    HorizontalLayout {
        padding-left: root.native-padding-left;
        padding-right: root.native-padding-right;
        padding-top: root.native-padding-top;
        padding-bottom: root.native-padding-bottom;
        inner := LineEditInner {
            placeholder-color: enabled ? StyleMetrics.placeholder-color : StyleMetrics.placeholder-color-disabled;
            enabled <=> root.enabled;
        }
    }
}

export ListView := ScrollView {
    @children
}

export StandardListView := ListView {
    property<[StandardListViewItem]> model;
    property<int> current-item: -1;
    for item[i] in model : NativeStandardListViewItem {
        item: item;
        index: i;
        is-selected: current-item == i;
        has-hover: ta.has-hover;
        ta := TouchArea {
            clicked => { current-item = i; }
        }
    }
    FocusScope {
        key-pressed(event) => {
            if (event.text == Keys.UpArrow && current-item > 0) {
                current-item -= 1;
                accept
            } else if (event.text == Keys.DownArrow && current-item + 1 < model.length) {
                current-item += 1;
                accept
            } else {
                reject
            }
        }
    }
}

export ComboBox := NativeComboBox {
    property <[string]> model;
    property <int> current-index : -1;
    enabled: true;
    open-popup => { popup.show(); }
    callback selected(string);

    accessible-role: combobox;
    accessible-value <=> current-value;

    popup := PopupWindow {
        Rectangle { background: NativeStyleMetrics.window-background; }
        NativeComboBoxPopup {
            width: 100%;
            height: 100%;
        }
        y: root.height;
        width: root.width;
        VerticalLayout {
            spacing: 0px;
            for value[i] in root.model: NativeStandardListViewItem {
                item: { text: value };
                is-selected: current-index == i;
                has-hover: ta.has-hover;
                ta := TouchArea {
                    clicked => {
                        if (root.enabled) {
                            current-index = i;
                            current-value = value;
                            selected(current-value);
                        }
                        //is-open = false;
                    }
                }
            }
        }
    }

    fs := FocusScope {
        key-pressed(event) => {
            if (event.text == Keys.UpArrow) {
                root.current-index = Math.max(root.current-index - 1, 0);
                root.current-value = model[root.current-index];
                return accept;
            } else if (event.text == Keys.DownArrow) {
                root.current-index = Math.min(root.current-index + 1, root.model.length - 1);
                root.current-value = model[root.current-index];
                return accept;
            // PopupWindow can not get hidden again at this time, so do not allow to pop that up.
            // } else if (event.text == Keys.Return) {
            //     touch.clicked()
            //     return accept;
            }
            return reject;
        }
    }
}

export TabWidgetImpl := NativeTabWidget { }

export TabImpl := NativeTab {
    accessible-role: tab;
    accessible-label <=> title;
}

export TabBarImpl := Rectangle {
    // injected properties:
    property<int> current; // The currently selected tab
    property<int> current-focused: fs.has-focus ? current : -1; // The currently focused tab
    property<int> num-tabs; // The total number of tabs

    accessible-role: tab;
    accessible-delegate-focus: current;

    HorizontalLayout {
        spacing: 0px; // Qt renders Tabs next to each other and renders "spacing" as part of the tab itself
        alignment: NativeStyleMetrics.tab-bar-alignment;
        @children
    }

    fs := FocusScope {
        width: 0px; // Do not react on clicks
        key-pressed(event) => {
            if (event.text == Keys.LeftArrow) {
                 root.current = Math.max(root.current - 1,  0);
                 return accept;
            }
            if (event.text == Keys.RightArrow) {
                 root.current = Math.min(root.current + 1, num-tabs - 1);
                 return accept;
            }
            return reject;
        }
    }
}

export TabWidget := TabWidget {}

export VerticalBox := VerticalLayout {
    spacing: NativeStyleMetrics.layout-spacing;
    padding: NativeStyleMetrics.layout-spacing;
}

export HorizontalBox := HorizontalLayout {
    spacing: NativeStyleMetrics.layout-spacing;
    padding: NativeStyleMetrics.layout-spacing;
}

export GridBox := GridLayout {
    spacing: NativeStyleMetrics.layout-spacing;
    padding: NativeStyleMetrics.layout-spacing;
}