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92 lines
3.0 KiB
JavaScript
92 lines
3.0 KiB
JavaScript
const {csrfToken} = window.config;
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async function uploadFile(file, uploadUrl) {
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const formData = new FormData();
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formData.append('file', file, file.name);
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const res = await fetch(uploadUrl, {
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method: 'POST',
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headers: {'X-Csrf-Token': csrfToken},
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body: formData,
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});
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return await res.json();
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}
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function clipboardPastedImages(e) {
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if (!e.clipboardData) return [];
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const files = [];
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for (const item of e.clipboardData.items || []) {
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if (!item.type || !item.type.startsWith('image/')) continue;
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files.push(item.getAsFile());
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}
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if (files.length) {
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e.preventDefault();
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e.stopPropagation();
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}
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return files;
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}
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function insertAtCursor(field, value) {
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if (field.selectionStart || field.selectionStart === 0) {
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const startPos = field.selectionStart;
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const endPos = field.selectionEnd;
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field.value = field.value.substring(0, startPos) + value + field.value.substring(endPos, field.value.length);
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field.selectionStart = startPos + value.length;
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field.selectionEnd = startPos + value.length;
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} else {
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field.value += value;
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}
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}
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function replaceAndKeepCursor(field, oldval, newval) {
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if (field.selectionStart || field.selectionStart === 0) {
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const startPos = field.selectionStart;
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const endPos = field.selectionEnd;
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field.value = field.value.replace(oldval, newval);
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field.selectionStart = startPos + newval.length - oldval.length;
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field.selectionEnd = endPos + newval.length - oldval.length;
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} else {
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field.value = field.value.replace(oldval, newval);
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}
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}
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export function initCompImagePaste($target) {
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$target.each(function () {
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const dropzone = this.querySelector('.dropzone');
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if (!dropzone) {
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return;
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}
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const uploadUrl = dropzone.getAttribute('data-upload-url');
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const dropzoneFiles = dropzone.querySelector('.files');
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for (const textarea of this.querySelectorAll('textarea')) {
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textarea.addEventListener('paste', async (e) => {
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for (const img of clipboardPastedImages(e)) {
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const name = img.name.substr(0, img.name.lastIndexOf('.'));
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insertAtCursor(textarea, `![${name}]()`);
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const data = await uploadFile(img, uploadUrl);
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replaceAndKeepCursor(textarea, `![${name}]()`, `![${name}](/attachments/${data.uuid})`);
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const input = $(`<input id="${data.uuid}" name="files" type="hidden">`).val(data.uuid);
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dropzoneFiles.appendChild(input[0]);
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}
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}, false);
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}
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});
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}
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export function initSimpleMDEImagePaste(simplemde, dropzone, files) {
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const uploadUrl = dropzone.getAttribute('data-upload-url');
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simplemde.codemirror.on('paste', async (_, e) => {
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for (const img of clipboardPastedImages(e)) {
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const name = img.name.substr(0, img.name.lastIndexOf('.'));
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const data = await uploadFile(img, uploadUrl);
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const pos = simplemde.codemirror.getCursor();
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simplemde.codemirror.replaceRange(`![${name}](/attachments/${data.uuid})`, pos);
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const input = $(`<input id="${data.uuid}" name="files" type="hidden">`).val(data.uuid);
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files.append(input);
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}
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});
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}
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