Refactor image paste code (#13354)
Some minor refactors I did while investigating another issue. Functionalily should be pretty much the same as before. Co-authored-by: techknowlogick <techknowlogick@gitea.io> Co-authored-by: Lauris BH <lauris@nix.lv>
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@ -305,42 +305,32 @@ function replaceAndKeepCursor(field, oldval, newval) {
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}
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}
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function retrieveImageFromClipboardAsBlob(pasteEvent, callback) {
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if (!pasteEvent.clipboardData) {
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return;
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function getPastedImages(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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const {items} = pasteEvent.clipboardData;
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if (typeof items === 'undefined') {
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return;
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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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for (let i = 0; i < items.length; i++) {
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if (!items[i].type.includes('image')) continue;
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const blob = items[i].getAsFile();
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if (typeof (callback) === 'function') {
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pasteEvent.preventDefault();
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pasteEvent.stopPropagation();
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callback(blob);
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}
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}
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}
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function uploadFile(file, callback) {
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const xhr = new XMLHttpRequest();
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xhr.addEventListener('load', () => {
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if (xhr.status === 200) {
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callback(xhr.responseText);
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}
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});
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xhr.open('post', $('#dropzone').data('upload-url'), true);
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xhr.setRequestHeader('X-Csrf-Token', csrf);
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async function uploadFile(file) {
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const formData = new FormData();
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formData.append('file', file, file.name);
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xhr.send(formData);
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const res = await fetch($('#dropzone').data('upload-url'), {
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method: 'POST',
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headers: {'X-Csrf-Token': csrf},
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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 reload() {
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@ -350,33 +340,29 @@ function reload() {
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function initImagePaste(target) {
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target.each(function () {
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const field = this;
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field.addEventListener('paste', (event) => {
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retrieveImageFromClipboardAsBlob(event, (img) => {
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field.addEventListener('paste', async (e) => {
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for (const img of getPastedImages(e)) {
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const name = img.name.substr(0, img.name.lastIndexOf('.'));
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insertAtCursor(field, `![${name}]()`);
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uploadFile(img, (res) => {
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const data = JSON.parse(res);
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const data = await uploadFile(img);
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replaceAndKeepCursor(field, `![${name}]()`, `![${name}](${AppSubUrl}/attachments/${data.uuid})`);
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const input = $(`<input id="${data.uuid}" name="files" type="hidden">`).val(data.uuid);
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$('.files').append(input);
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});
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});
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}
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}, false);
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});
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}
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function initSimpleMDEImagePaste(simplemde, files) {
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simplemde.codemirror.on('paste', (_, event) => {
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retrieveImageFromClipboardAsBlob(event, (img) => {
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simplemde.codemirror.on('paste', async (_, e) => {
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for (const img of getPastedImages(e)) {
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const name = img.name.substr(0, img.name.lastIndexOf('.'));
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uploadFile(img, (res) => {
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const data = JSON.parse(res);
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const data = await uploadFile(img);
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const pos = simplemde.codemirror.getCursor();
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simplemde.codemirror.replaceRange(`![${name}](${AppSubUrl}/attachments/${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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});
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}
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