slint/internal/compiler/widgets/native/std-widgets.slint

// 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 component Button inherits NativeButton {
    // FIXME: remove
    in-out property<length> font-size;
    accessible-checkable <=> root.checkable;
    accessible-checked <=> root.checked;
    accessible-label <=> root.text;
    accessible-role: button;
    checkable: false;
    enabled: true;
}

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

export component CheckBox inherits NativeCheckBox {
    accessible-checkable: true;
    accessible-checked <=> root.checked;
    accessible-label <=> root.text;
    accessible-role: checkbox;
}
export component SpinBox inherits NativeSpinBox {
    // FIXME: remove
    in-out property<length> font-size;

    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;

}

export component Slider inherits NativeSlider {
    accessible-role: slider;
    accessible-value: root.value;
    accessible-value-minimum: root.minimum;
    accessible-value-maximum: root.maximum;
    accessible-value-step: (root.maximum - root.minimum) / 100;

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

    fs := FocusScope {
        x:0;
        width: 0px;

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

}

export component GroupBox inherits 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 component LineEdit inherits NativeLineEdit {
    in property <length> font-size <=> inner.font-size;
    in-out property <string> text <=> inner.text;
    in property <string> placeholder-text <=> inner.placeholder-text;
    in property input-type <=> inner.input-type;
    in property horizontal-alignment <=> inner.horizontal-alignment;
    in 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: self.enabled ? StyleMetrics.placeholder-color : StyleMetrics.placeholder-color-disabled;
            enabled <=> root.enabled;
        }
    }
}

export component ListView inherits ScrollView {
    @children
}

component StandardListViewBase inherits ListView {
    in property<[StandardListViewItem]> model;
    in-out property<int> current-item: -1;
    for item[i] in root.model : NativeStandardListViewItem {
        item: item;
        index: i;
        is-selected: root.current-item == i;
        has-hover: ta.has-hover;
        ta := TouchArea {
            clicked => { root.current-item = i; }
        }
    }
}

export component StandardListView inherits StandardListViewBase {
    FocusScope {
        key-pressed(event) => {
            if (event.text == Key.UpArrow && root.current-item > 0) {
                root.current-item -= 1;
                accept
            } else if (event.text == Key.DownArrow && root.current-item + 1 < root.model.length) {
                root.current-item += 1;
                accept
            } else {
                reject
            }
        }
    }
}

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

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

    popup := PopupWindow {
        x:0;
        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: root.current-index == i;
                has-hover: ta.has-hover;
                ta := TouchArea {
                    clicked => {
                        if (root.enabled) {
                            root.current-index = i;
                            root.current-value = value;
                            root.selected(root.current-value);
                        }
                        //is-open = false;
                    }
                }
            }
        }
    }

    fs := FocusScope {
        key-pressed(event) => {
            if (event.text == Key.UpArrow) {
                root.current-index = Math.max(root.current-index - 1, 0);
                root.current-value = root.model[root.current-index];
                return accept;
            } else if (event.text == Key.DownArrow) {
                root.current-index = Math.min(root.current-index + 1, root.model.length - 1);
                root.current-value = root.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 == Key.Return) {
            //     touch.clicked()
            //     return accept;
            }
            return reject;
        }
    }
}

export component TabWidgetImpl inherits NativeTabWidget { }

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

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

    accessible-role: tab;
    accessible-delegate-focus: root.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 {
        x:0;
        width: 0px; // Do not react on clicks
        key-pressed(event) => {
            if (event.text == Key.LeftArrow) {
                 root.current = Math.max(root.current - 1,  0);
                 return accept;
            }
            if (event.text == Key.RightArrow) {
                 root.current = Math.min(root.current + 1, root.num-tabs - 1);
                 return accept;
            }
            return reject;
        }
    }
}

export component TabWidget inherits TabWidget {}

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

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

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

export component StandardTableView inherits Rectangle {
    callback sort-ascending(int);
    callback sort-descending(int);
    
    private property <length> min-header-height: 42px;
    out property <int> current-sort-column: -1;
    in-out property <[TableColumn]> columns;
    in property <[[StandardListViewItem]]> rows;  
   
    horizontal-stretch: 1;
    vertical-stretch: 1;

    function sort(index: int) {
        if (current-sort-column != index) {
            columns[current-sort-column].sort-order = SortOrder.unsorted;
        }

        if(columns[index].sort-order == SortOrder.ascending) {
            columns[index].sort-order = SortOrder.descending;
            sort-descending(index);
        } else {
            columns[index].sort-order = SortOrder.ascending;
            sort-ascending(index);
        }

        current-sort-column = index;
    }

    VerticalLayout {  
        HorizontalLayout {  
            for column[index] in columns : NativeTableHeaderSection {
                item: column;
                horizontal-stretch: column.horizontal-stretch;

                TouchArea {  
                    clicked => {  
                        sort(index);
                    }
                }
            }
        }

        scroll-view := ScrollView {  
            vertical-stretch: 1;

            VerticalLayout {  
                alignment: start;
                
                for row[i] in rows : HorizontalLayout {   
                    for cell[index] in row : HorizontalBox {
                        horizontal-stretch: columns[index].horizontal-stretch;
                        min-width: columns[index].min-width;
                        min-height: root.min-header-height;
                      
                        Rectangle {
                            line-edit := LineEditInner {
                                opacity: self.has-focus ? 1.0 : 0.0;
                                visible: cell.editable;
                                text: cell.text;
                                edited => {  
                                    cell.text = self.text;
                                }
                            }
    
                            if(!cell.editable || !line-edit.has-focus) : Text {
                                font-size: line-edit.font-size;
                                width: 100%;
                                height: 100%;
                                overflow: elide;
                                vertical-alignment: center;
                                text: cell.text;
                            }
                        }
                    }
                }
            }  
        }
    }
}