mirror of https://github.com/go-gitea/gitea.git
23 lines
1.5 KiB
TypeScript
23 lines
1.5 KiB
TypeScript
// DO NOT IMPORT window.config HERE!
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// to make sure the error handler always works, we should never import `window.config`, because
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// some user's custom template breaks it.
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import {showGlobalErrorMessage, processWindowErrorEvent} from './modules/errors.ts';
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// A module should not be imported twice, otherwise there will be bugs when a module has its internal states.
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// A real example is "generateElemId" in "utils/dom.ts", if it is imported twice in different module scopes,
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// It will generate duplicate IDs (ps: don't try to use "random" to fix, it is just a real example to show the importance of "do not import a module twice")
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if (!window._globalHandlerErrors?._inited) {
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if (!window.config) {
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showGlobalErrorMessage(`Gitea JavaScript code couldn't run correctly, please check your custom templates`);
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}
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// we added an event handler for window error at the very beginning of <script> of page head the
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// handler calls `_globalHandlerErrors.push` (array method) to record all errors occur before
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// this init then in this init, we can collect all error events and show them.
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for (const e of (window._globalHandlerErrors as Iterable<ErrorEvent & PromiseRejectionEvent>) || []) {
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processWindowErrorEvent(e);
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}
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// then, change _globalHandlerErrors to an object with push method, to process further error
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// events directly
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window._globalHandlerErrors = {_inited: true, push: (e: ErrorEvent & PromiseRejectionEvent) => processWindowErrorEvent(e)} as any;
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}
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