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123 lines
3.7 KiB
TypeScript
123 lines
3.7 KiB
TypeScript
import Plugin from '../Plugin';
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import createViewHandle from '../utils/createViewHandle';
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import WebviewController, { ContainerType } from '../WebviewController';
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import { ViewHandle } from './types';
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/**
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* Allows creating and managing view panels. View panels currently are
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* displayed at the right of the sidebar and allows displaying any HTML
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* content (within a webview) and update it in real-time. For example it
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* could be used to display a table of content for the active note, or
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* display various metadata or graph.
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*
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* [View the demo plugin](https://github.com/laurent22/joplin/tree/dev/packages/app-cli/tests/support/plugins/toc)
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*/
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export default class JoplinViewsPanels {
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private store: any;
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private plugin: Plugin;
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public constructor(plugin: Plugin, store: any) {
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this.store = store;
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this.plugin = plugin;
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}
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private controller(handle: ViewHandle): WebviewController {
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return this.plugin.viewController(handle) as WebviewController;
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}
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/**
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* Creates a new panel
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*/
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public async create(id: string): Promise<ViewHandle> {
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if (!id) {
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this.plugin.deprecationNotice('1.5', 'Creating a view without an ID is deprecated. To fix it, change your call to `joplin.views.panels.create("my-unique-id")`', true);
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id = `${this.plugin.viewCount}`;
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}
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const handle = createViewHandle(this.plugin, id);
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const controller = new WebviewController(handle, this.plugin.id, this.store, this.plugin.baseDir, ContainerType.Panel);
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this.plugin.addViewController(controller);
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return handle;
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}
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/**
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* Sets the panel webview HTML
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*/
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public async setHtml(handle: ViewHandle, html: string): Promise<string> {
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return this.controller(handle).html = html;
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}
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/**
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* Adds and loads a new JS or CSS files into the panel.
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*/
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public async addScript(handle: ViewHandle, scriptPath: string): Promise<void> {
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return this.controller(handle).addScript(scriptPath);
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}
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/**
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* Called when a message is sent from the webview (using postMessage).
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*
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* To post a message from the webview to the plugin use:
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*
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* ```javascript
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* const response = await webviewApi.postMessage(message);
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* ```
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*
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* - `message` can be any JavaScript object, string or number
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* - `response` is whatever was returned by the `onMessage` handler
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*
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* Using this mechanism, you can have two-way communication between the
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* plugin and webview.
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*
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* See the [postMessage
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* demo](https://github.com/laurent22/joplin/tree/dev/packages/app-cli/tests/support/plugins/post_messages) for more details.
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*
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*/
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public async onMessage(handle: ViewHandle, callback: Function): Promise<void> {
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return this.controller(handle).onMessage(callback);
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}
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/**
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* Sends a message to the webview.
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*
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* The webview must have registered a message handler prior, otherwise the message is ignored. Use;
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*
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* ```javascript
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* webviewApi.onMessage((message) => { ... });
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* ```
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*
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* - `message` can be any JavaScript object, string or number
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*
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* The view API may have only one onMessage handler defined.
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* This method is fire and forget so no response is returned.
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*
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* It is particularly useful when the webview needs to react to events emitted by the plugin or the joplin api.
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*/
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public postMessage(handle: ViewHandle, message: any): void {
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return this.controller(handle).postMessage(message);
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}
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/**
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* Shows the panel
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*/
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public async show(handle: ViewHandle, show: boolean = true): Promise<void> {
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await this.controller(handle).show(show);
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}
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/**
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* Hides the panel
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*/
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public async hide(handle: ViewHandle): Promise<void> {
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await this.show(handle, false);
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}
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/**
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* Tells whether the panel is visible or not
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*/
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public async visible(handle: ViewHandle): Promise<boolean> {
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return this.controller(handle).visible;
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}
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}
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