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Added canvas context menu and node/link appearance animation
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,99 @@ | ||
| import { Point } from "./Point"; | ||
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| export class CanvasContextMenu extends EventTarget | ||
| { | ||
| public static readonly createNodeOptionClickedEvent = "create-node-option-clicked"; | ||
| public static readonly lockCanvasSwitchClickedEvent = "lock-canvas-switch-clicked"; | ||
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| public constructor() | ||
| { | ||
| super(); | ||
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| this._menuContainer.addEventListener("mousedown", () => | ||
| { | ||
| this.closeMenu(); | ||
| }); | ||
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| this.setupMenuOption(this._createNodeOption, CanvasContextMenu.createNodeOptionClickedEvent); | ||
| this.setupMenuOption(this._lockCanvasSwitch, CanvasContextMenu.lockCanvasSwitchClickedEvent); | ||
| } | ||
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| public addMenuTo(node: HTMLElement | SVGElement): void | ||
| { | ||
| let canvasContextMenu = | ||
| document.querySelector("#canvas-context-menu-container>.context-menu") as HTMLDivElement; | ||
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| node.addEventListener("contextmenu", (event) => | ||
| { | ||
| let mouseEvent = event as MouseEvent; | ||
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| event.preventDefault(); | ||
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| this._openingPosition = { x: mouseEvent.clientX, y: mouseEvent.clientY }; | ||
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| canvasContextMenu.style.top = `${mouseEvent.pageY + 5}px`; | ||
| canvasContextMenu.style.left = `${mouseEvent.pageX + 5}px`; | ||
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| this.openMenu(); | ||
| }); | ||
| } | ||
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| public closeMenu(): void | ||
| { | ||
| this._isMenuOpened = false; | ||
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| this._menuContainer.classList.add("hidden"); | ||
| } | ||
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| public openMenu(): void | ||
| { | ||
| this._isMenuOpened = true; | ||
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| this._menuContainer.classList.remove("hidden"); | ||
| } | ||
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| public get isMenuOpened(): boolean | ||
| { | ||
| return this._isMenuOpened; | ||
| } | ||
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| public get openingPosition(): Point | undefined | ||
| { | ||
| return this._openingPosition; | ||
| } | ||
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| public setCanvasLockedSwitchEnabled(canvasLocked: boolean) | ||
| { | ||
| if (canvasLocked) | ||
| { | ||
| this._lockCanvasSwitch.classList.add("enabled"); | ||
| } | ||
| else | ||
| { | ||
| this._lockCanvasSwitch.classList.remove("enabled"); | ||
| } | ||
| } | ||
|
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| private setupMenuOption(optionNode: HTMLElement, eventName: string) | ||
| { | ||
| optionNode.addEventListener("mousedown", (event) => | ||
| { | ||
| event.stopPropagation(); | ||
| }); | ||
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| optionNode.addEventListener("click", () => | ||
| { | ||
| this.dispatchEvent(new Event(eventName)); | ||
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| this._menuContainer.classList.add("hidden"); | ||
| this._isMenuOpened = false; | ||
| }); | ||
| } | ||
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| private _menuContainer = document.querySelector("#canvas-context-menu-container") as HTMLDivElement; | ||
| private _lockCanvasSwitch = document.querySelector("#lock-canvas-switch") as HTMLDivElement; | ||
| private _createNodeOption = document.querySelector("#create-node-option") as HTMLDivElement; | ||
|
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| private _isMenuOpened = false; | ||
| private _openingPosition?: Point; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| import { PanZoom } from "panzoom"; | ||
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| export class Settings extends EventTarget | ||
| { | ||
| public static readonly isCanvasLockedChangedEvent = "canvas-locked-changed"; | ||
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| public static get instance() | ||
| { | ||
| return this._instance; | ||
| } | ||
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| public setPanContext(panContext: PanZoom): void | ||
| { | ||
| this._panContext = panContext; | ||
| } | ||
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| public get isCanvasLocked(): boolean | ||
| { | ||
| return this._isCanvasLocked; | ||
| } | ||
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| public set isCanvasLocked(canvasLocked: boolean) | ||
| { | ||
| if (this._panContext == undefined) | ||
| { | ||
| throw Error("Pan context must be initialized before locking canvas"); | ||
| } | ||
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| if (canvasLocked) | ||
| { | ||
| this._panContext.pause(); | ||
| } | ||
| else | ||
| { | ||
| this._panContext.resume(); | ||
| } | ||
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| this._isCanvasLocked = canvasLocked; | ||
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| this.dispatchEvent(new Event(Settings.isCanvasLockedChangedEvent)); | ||
| } | ||
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| private constructor() | ||
| { | ||
| super(); | ||
| } | ||
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| private static readonly _instance = new Settings(); | ||
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| private _panContext?: PanZoom; | ||
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| private _isCanvasLocked = false; | ||
| } |
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