60 Zeilen
2,1 KiB
JavaScript
60 Zeilen
2,1 KiB
JavaScript
// lite version of discourse/lib/utilities
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export function determinePostReplaceSelection({ selection, needle, replacement }) {
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const diff = (replacement.end - replacement.start) - (needle.end - needle.start);
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if (selection.end <= needle.start) {
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// Selection ends (and starts) before needle.
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return { start: selection.start, end: selection.end };
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} else if (selection.start <= needle.start) {
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// Selection starts before needle...
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if (selection.end < needle.end) {
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// ... and ends inside needle.
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return { start: selection.start, end: needle.start };
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} else {
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// ... and spans needle completely.
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return { start: selection.start, end: selection.end + diff };
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}
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} else if (selection.start < needle.end) {
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// Selection starts inside needle...
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if (selection.end <= needle.end) {
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// ... and ends inside needle.
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return { start: replacement.end, end: replacement.end };
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} else {
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// ... and spans end of needle.
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return { start: replacement.end, end: selection.end + diff };
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}
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} else {
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// Selection starts (and ends) behind needle.
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return { start: selection.start + diff, end: selection.end + diff };
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}
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}
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const toArray = items => {
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items = items || [];
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if (!Array.isArray(items)) {
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return Array.from(items);
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}
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return items;
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};
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export function clipboardData(e, canUpload) {
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const clipboard = e.clipboardData ||
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e.originalEvent.clipboardData ||
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e.delegatedEvent.originalEvent.clipboardData;
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const types = toArray(clipboard.types);
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let files = toArray(clipboard.files);
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if (types.includes("Files") && files.length === 0) { // for IE
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files = toArray(clipboard.items).filter(i => i.kind === "file");
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}
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canUpload = files && canUpload && !types.includes("text/plain");
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const canUploadImage = canUpload && files.filter(f => f.type.match('^image/'))[0];
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const canPasteHtml = Discourse.SiteSettings.enable_rich_text_paste && types.includes("text/html") && !canUploadImage;
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return { clipboard, types, canUpload, canPasteHtml };
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}
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