84 lines
No EOL
3.2 KiB
TypeScript
84 lines
No EOL
3.2 KiB
TypeScript
import * as loader from "tc-loader";
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import {Stage} from "tc-loader";
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import {ConnectionHandler, ConnectionState} from "tc-shared/ConnectionHandler";
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import * as React from "react";
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import * as ReactDOM from "react-dom";
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import {useState} from "react";
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import {server_connections} from "tc-shared/ConnectionManager";
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import {
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ClientIcon,
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spriteEntries as kClientSpriteEntries,
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spriteUrl as kClientSpriteUrl
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} from "svg-sprites/client-icons";
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let iconImage: HTMLImageElement;
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async function initializeFaviconRenderer() {
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iconImage = new Image();
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iconImage.src = kClientSpriteUrl;
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await new Promise((resolve, reject) => {
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iconImage.onload = resolve;
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iconImage.onerror = () => reject("failed to load client icon sprite");
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});
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let container = document.createElement("span");
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ReactDOM.render(ReactDOM.createPortal(<FaviconRenderer />, document.head), container, () => {
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document.getElementById("favicon").remove();
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});
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//container.remove();
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}
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function clientIconToDataUrl(icon: ClientIcon) : string | undefined {
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const sprite = kClientSpriteEntries.find(e => e.className === icon);
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if(!sprite) {
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return;
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}
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const canvas = document.createElement("canvas");
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canvas.width = sprite.width;
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canvas.height = sprite.height;
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const context = canvas.getContext("2d");
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context.drawImage(iconImage, sprite.xOffset, sprite.yOffset, sprite.width, sprite.height, 0, 0, sprite.width, sprite.height);
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return canvas.toDataURL();
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}
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const FaviconRenderer = () => {
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const [ handler, setHandler ] = useState<ConnectionHandler>(server_connections.active_connection());
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server_connections.events().reactUse("notify_active_handler_changed", event => setHandler(event.newHandler));
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return handler ? <HandlerFaviconRenderer connection={handler} key={"handler-" + handler.handlerId} /> : <DefaultFaviconRenderer key={"default"} />;
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};
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const DefaultFaviconRenderer = () => <link key={"normal"} rel={"shortcut icon"} href={"img/favicon/teacup.png"} type={"image/x-icon"} />;
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const ClientIconFaviconRenderer = (props: { icon: ClientIcon }) => {
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const url = clientIconToDataUrl(props.icon);
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if(!url) {
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return <DefaultFaviconRenderer key={"broken"} />;
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} else {
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return <link key={"status"} rel={"shortcut icon"} href={url} type={"image/x-icon"}/>;
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}
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};
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const HandlerFaviconRenderer = (props: { connection: ConnectionHandler }) => {
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const [ showClientStatus, setShowClientStatus ] = useState(props.connection.connection_state === ConnectionState.CONNECTED);
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props.connection.events().reactUse("notify_connection_state_changed", event => setShowClientStatus(event.new_state === ConnectionState.CONNECTED));
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const [ statusIcon, setStatusIcon ] = useState<ClientIcon>(props.connection.getClient().getStatusIcon());
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props.connection.getClient().events.reactUse("notify_status_icon_changed", event => setStatusIcon(event.newIcon));
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if(showClientStatus) {
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return <ClientIconFaviconRenderer icon={statusIcon} key={"server"} />;
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} else {
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return <DefaultFaviconRenderer key={"default"} />;
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}
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}
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loader.register_task(Stage.JAVASCRIPT_INITIALIZING, {
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name: "favicon renderer",
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function: initializeFaviconRenderer,
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priority: 10
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}); |