@bokeh/bokehjs/build/js/lib/models/canvas/canvas_panel.js

Interactive, novel data visualization

import { StyledElement, StyledElementView } from "../ui/styled_element";
import { InlineStyleSheet } from "../../core/dom";
import { BBox } from "../../core/util/bbox";
import { Place } from "../../core/enums";
import { isNumber } from "../../core/util/types";
import * as css from "../../styles/canvas_panel.css";
export class CanvasPanelView extends StyledElementView {
    static __name__ = "CanvasPanelView";
    _bbox = new BBox();
    get bbox() {
        return this._bbox;
    }
    position = new InlineStyleSheet("", "position");
    stylesheets() {
        return [...super.stylesheets(), css.default, this.position];
    }
    rendering_target() {
        return this.parent.canvas_view.events_el;
    }
    render() {
        super.render();
        this.class_list.add(css[this.model.place]);
    }
    set_geometry(bbox) {
        this._bbox = bbox;
        this._update_position();
        this.mark_finished();
    }
    /**
     * Updates the position of the associated DOM element.
     */
    _update_position() {
        const { bbox, position } = this;
        if (!bbox.is_valid) {
            position.replace(`
      :host {
        display: none;
      }
      `);
        }
    }
    // TODO remove this when bbox handling is unified
    resolve_symbol(node) {
        const target = this;
        const value = target.bbox.resolve(node.symbol);
        const { offset } = node;
        if (isNumber(value)) {
            return value + offset;
        }
        else {
            const { x, y } = value;
            return { x: x + offset, y: y + offset };
        }
    }
}
export class CanvasPanel extends StyledElement {
    static __name__ = "CanvasPanel";
    constructor(attrs) {
        super(attrs);
    }
    static {
        this.prototype.default_view = CanvasPanelView;
        this.define({
            place: [Place],
        });
    }
}
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