@gravity-ui/graph/build/services/camera/Camera.d.ts

Modern graph editor component

import { EventedComponent } from "../../components/canvas/EventedComponent/EventedComponent";
import { TGraphLayerContext } from "../../components/canvas/layers/graphLayer/GraphLayer";
import { Component } from "../../lib";
import { TComponentProps, TComponentState } from "../../lib/Component";
import { ComponentDescriptor } from "../../lib/CoreComponent";
export type TCameraProps = TComponentProps & {
    root?: HTMLDivElement;
    children: ComponentDescriptor[];
};
export declare class Camera extends EventedComponent<TCameraProps, TComponentState, TGraphLayerContext> {
    private camera;
    private ownerDocument;
    private lastDragEvent?;
    private removeAutoPanScheduler?;
    private lastMouseEvent?;
    private unsubscribeCamera?;
    constructor(props: TCameraProps, parent: Component);
    private handleCameraStateChange;
    protected handleClick: () => void;
    protected setRoot(): void;
    protected addWheelListener(root?: HTMLDivElement): void;
    protected propsChanged(nextProps: TCameraProps): void;
    protected unmount(): void;
    private startAutoPanning;
    private stopAutoPanning;
    private handleMouseMoveForAutoPan;
    private performAutoPan;
    private handleMouseDownEvent;
    /**
     * DragService handles draggable graph components; camera pan is deferred in that case.
     */
    private isTargetDraggable;
    private onDragStart;
    private onDragUpdate;
    private onDragEnd;
    /**
     * Applies a pan delta from wheel input.
     *
     * Transitional: invoked directly from {@link handleWheelEvent}. Will become a handler
     * for a semantic `camera:pan` graph event once the input event bus replaces raw DOM subscriptions.
     */
    private handlePan;
    /**
     * Applies a zoom delta from wheel input.
     *
     * Transitional: invoked directly from {@link handleWheelEvent}. Will become a handler
     * for a semantic `camera:zoom` graph event once the input event bus replaces raw DOM subscriptions.
     */
    private handleZoom;
    /**
     * Transitional wheel entry point: resolves pan vs zoom intent, then dispatches to
     * {@link handlePan} / {@link handleZoom}. Intent classification lives in
     * {@link GraphEditorSettings.wheelIntentFromEvent} today; later an input layer will
     * emit semantic graph events (`camera:pan`, `camera:zoom`, …) and Camera will subscribe.
     */
    private handleWheelEvent;
    protected moveWithEdges(deltaX: number, deltaY: number): void;
    render(): void;
    updateChildren(): ComponentDescriptor[];
}