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Changed: ignore output of previewRender if it is null

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This commit is contained in:
Lennart Vogelsang 2022-06-07 19:55:27 +02:00
parent 0c31e06928
commit 8295aa6a5a
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GPG Key ID: DD9053639FE86BE8
2 changed files with 11 additions and 3 deletions
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12
src/js/easymde.js
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@ -1124,7 +1124,11 @@ function togglePreview(editor) {
toolbar_div.className += ' disabled-for-preview'; toolbar_div.className += ' disabled-for-preview';
} }
} }
preview.innerHTML = editor.options.previewRender(editor.value(), preview);
var preview_result = editor.options.previewRender(editor.value(), preview);
if (preview_result !== null) {
preview.innerHTML = preview_result;
}
} }
@ -2849,7 +2853,11 @@ EasyMDE.prototype.value = function (val) {
if (this.isPreviewActive()) { if (this.isPreviewActive()) {
var wrapper = cm.getWrapperElement(); var wrapper = cm.getWrapperElement();
var preview = wrapper.lastChild; var preview = wrapper.lastChild;
preview.innerHTML = this.options.previewRender(val, preview); var preview_result = this.options.previewRender(val, preview);
if (preview_result !== null) {
preview.innerHTML = preview_result;
}
} }
return this; return this;
} }

2
types/easymde.d.ts vendored
View File

@ -196,7 +196,7 @@ declare namespace EasyMDE {
previewClass?: string | ReadonlyArray<string>; previewClass?: string | ReadonlyArray<string>;
previewImagesInEditor?: boolean; previewImagesInEditor?: boolean;
imagesPreviewHandler?: (src: string) => string, imagesPreviewHandler?: (src: string) => string,
previewRender?: (markdownPlaintext: string, previewElement: HTMLElement) => string; previewRender?: (markdownPlaintext: string, previewElement: HTMLElement) => string | null;
promptURLs?: boolean; promptURLs?: boolean;
renderingConfig?: RenderingOptions; renderingConfig?: RenderingOptions;
shortcuts?: Shortcuts; shortcuts?: Shortcuts;