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https://github.com/BookStackApp/BookStack.git
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448 lines
16 KiB
JavaScript
448 lines
16 KiB
JavaScript
import DrawIO from "../services/drawio";
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export class Actions {
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/**
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* @param {MarkdownEditor} editor
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*/
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constructor(editor) {
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this.editor = editor;
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}
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updateAndRender() {
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const content = this.editor.cm.getValue();
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this.editor.config.inputEl.value = content;
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const html = this.editor.markdown.render(content);
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window.$events.emit('editor-html-change', html);
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window.$events.emit('editor-markdown-change', content);
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this.editor.display.patchWithHtml(html);
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}
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insertImage() {
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const cursorPos = this.editor.cm.getCursor('from');
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/** @type {ImageManager} **/
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const imageManager = window.$components.first('image-manager');
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imageManager.show(image => {
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const imageUrl = image.thumbs.display || image.url;
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let selectedText = this.editor.cm.getSelection();
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let newText = "[![" + (selectedText || image.name) + "](" + imageUrl + ")](" + image.url + ")";
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this.editor.cm.focus();
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this.editor.cm.replaceSelection(newText);
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this.editor.cm.setCursor(cursorPos.line, cursorPos.ch + newText.length);
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}, 'gallery');
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}
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insertLink() {
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const cursorPos = this.editor.cm.getCursor('from');
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const selectedText = this.editor.cm.getSelection() || '';
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const newText = `[${selectedText}]()`;
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this.editor.cm.focus();
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this.editor.cm.replaceSelection(newText);
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const cursorPosDiff = (selectedText === '') ? -3 : -1;
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this.editor.cm.setCursor(cursorPos.line, cursorPos.ch + newText.length+cursorPosDiff);
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}
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showImageManager() {
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const cursorPos = this.editor.cm.getCursor('from');
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/** @type {ImageManager} **/
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const imageManager = window.$components.first('image-manager');
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imageManager.show(image => {
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this.insertDrawing(image, cursorPos);
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}, 'drawio');
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}
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// Show the popup link selector and insert a link when finished
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showLinkSelector() {
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const cursorPos = this.editor.cm.getCursor('from');
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/** @type {EntitySelectorPopup} **/
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const selector = window.$components.first('entity-selector-popup');
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selector.show(entity => {
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let selectedText = this.editor.cm.getSelection() || entity.name;
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let newText = `[${selectedText}](${entity.link})`;
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this.editor.cm.focus();
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this.editor.cm.replaceSelection(newText);
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this.editor.cm.setCursor(cursorPos.line, cursorPos.ch + newText.length);
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});
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}
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// Show draw.io if enabled and handle save.
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startDrawing() {
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const url = this.editor.config.drawioUrl;
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if (!url) return;
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const cursorPos = this.editor.cm.getCursor('from');
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DrawIO.show(url,() => {
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return Promise.resolve('');
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}, (pngData) => {
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const data = {
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image: pngData,
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uploaded_to: Number(this.editor.config.pageId),
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};
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window.$http.post("/images/drawio", data).then(resp => {
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this.insertDrawing(resp.data, cursorPos);
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DrawIO.close();
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}).catch(err => {
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this.handleDrawingUploadError(err);
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});
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});
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}
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insertDrawing(image, originalCursor) {
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const newText = `<div drawio-diagram="${image.id}"><img src="${image.url}"></div>`;
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this.editor.cm.focus();
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this.editor.cm.replaceSelection(newText);
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this.editor.cm.setCursor(originalCursor.line, originalCursor.ch + newText.length);
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}
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// Show draw.io if enabled and handle save.
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editDrawing(imgContainer) {
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const drawioUrl = this.editor.config.drawioUrl;
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if (!drawioUrl) {
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return;
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}
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const cursorPos = this.editor.cm.getCursor('from');
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const drawingId = imgContainer.getAttribute('drawio-diagram');
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DrawIO.show(drawioUrl, () => {
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return DrawIO.load(drawingId);
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}, (pngData) => {
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const data = {
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image: pngData,
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uploaded_to: Number(this.editor.config.pageId),
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};
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window.$http.post("/images/drawio", data).then(resp => {
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const newText = `<div drawio-diagram="${resp.data.id}"><img src="${resp.data.url}"></div>`;
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const newContent = this.editor.cm.getValue().split('\n').map(line => {
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if (line.indexOf(`drawio-diagram="${drawingId}"`) !== -1) {
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return newText;
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}
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return line;
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}).join('\n');
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this.editor.cm.setValue(newContent);
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this.editor.cm.setCursor(cursorPos);
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this.editor.cm.focus();
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DrawIO.close();
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}).catch(err => {
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this.handleDrawingUploadError(err);
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});
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});
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}
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handleDrawingUploadError(error) {
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if (error.status === 413) {
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window.$events.emit('error', this.editor.config.text.serverUploadLimit);
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} else {
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window.$events.emit('error', this.editor.config.text.imageUploadError);
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}
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console.log(error);
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}
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// Make the editor full screen
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fullScreen() {
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const container = this.editor.config.container;
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const alreadyFullscreen = container.classList.contains('fullscreen');
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container.classList.toggle('fullscreen', !alreadyFullscreen);
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document.body.classList.toggle('markdown-fullscreen', !alreadyFullscreen);
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}
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// Scroll to a specified text
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scrollToText(searchText) {
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if (!searchText) {
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return;
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}
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const content = this.editor.cm.getValue();
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const lines = content.split(/\r?\n/);
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let lineNumber = lines.findIndex(line => {
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return line && line.indexOf(searchText) !== -1;
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});
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if (lineNumber === -1) {
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return;
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}
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this.editor.cm.scrollIntoView({
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line: lineNumber,
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}, 200);
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this.editor.cm.focus();
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// set the cursor location.
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this.editor.cm.setCursor({
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line: lineNumber,
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char: lines[lineNumber].length
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})
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}
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focus() {
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this.editor.cm.focus();
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}
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/**
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* Insert content into the editor.
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* @param {String} content
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*/
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insertContent(content) {
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this.editor.cm.replaceSelection(content);
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}
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/**
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* Prepend content to the editor.
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* @param {String} content
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*/
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prependContent(content) {
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const cursorPos = this.editor.cm.getCursor('from');
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const newContent = content + '\n' + this.editor.cm.getValue();
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this.editor.cm.setValue(newContent);
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const prependLineCount = content.split('\n').length;
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this.editor.cm.setCursor(cursorPos.line + prependLineCount, cursorPos.ch);
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}
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/**
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* Append content to the editor.
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* @param {String} content
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*/
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appendContent(content) {
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const cursorPos = this.editor.cm.getCursor('from');
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const newContent = this.editor.cm.getValue() + '\n' + content;
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this.editor.cm.setValue(newContent);
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this.editor.cm.setCursor(cursorPos.line, cursorPos.ch);
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}
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/**
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* Replace the editor's contents
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* @param {String} content
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*/
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replaceContent(content) {
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this.editor.cm.setValue(content);
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}
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/**
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* @param {String|RegExp} search
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* @param {String} replace
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*/
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findAndReplaceContent(search, replace) {
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const text = this.editor.cm.getValue();
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const cursor = this.editor.cm.listSelections();
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this.editor.cm.setValue(text.replace(search, replace));
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this.editor.cm.setSelections(cursor);
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}
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/**
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* Replace the start of the line
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* @param {String} newStart
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*/
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replaceLineStart(newStart) {
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const cursor = this.editor.cm.getCursor();
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let lineContent = this.editor.cm.getLine(cursor.line);
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const lineLen = lineContent.length;
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const lineStart = lineContent.split(' ')[0];
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// Remove symbol if already set
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if (lineStart === newStart) {
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lineContent = lineContent.replace(`${newStart} `, '');
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this.editor.cm.replaceRange(lineContent, {line: cursor.line, ch: 0}, {line: cursor.line, ch: lineLen});
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this.editor.cm.setCursor({line: cursor.line, ch: cursor.ch - (newStart.length + 1)});
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return;
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}
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const alreadySymbol = /^[#>`]/.test(lineStart);
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let posDif = 0;
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if (alreadySymbol) {
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posDif = newStart.length - lineStart.length;
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lineContent = lineContent.replace(lineStart, newStart).trim();
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} else if (newStart !== '') {
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posDif = newStart.length + 1;
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lineContent = newStart + ' ' + lineContent;
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}
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this.editor.cm.replaceRange(lineContent, {line: cursor.line, ch: 0}, {line: cursor.line, ch: lineLen});
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this.editor.cm.setCursor({line: cursor.line, ch: cursor.ch + posDif});
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}
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/**
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* Wrap the line in the given start and end contents.
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* @param {String} start
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* @param {String} end
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*/
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wrapLine(start, end) {
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const cursor = this.editor.cm.getCursor();
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const lineContent = this.editor.cm.getLine(cursor.line);
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const lineLen = lineContent.length;
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let newLineContent = lineContent;
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if (lineContent.indexOf(start) === 0 && lineContent.slice(-end.length) === end) {
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newLineContent = lineContent.slice(start.length, lineContent.length - end.length);
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} else {
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newLineContent = `${start}${lineContent}${end}`;
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}
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this.editor.cm.replaceRange(newLineContent, {line: cursor.line, ch: 0}, {line: cursor.line, ch: lineLen});
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this.editor.cm.setCursor({line: cursor.line, ch: cursor.ch + start.length});
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}
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/**
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* Wrap the selection in the given contents start and end contents.
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* @param {String} start
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* @param {String} end
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*/
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wrapSelection(start, end) {
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const selection = this.editor.cm.getSelection();
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if (selection === '') return this.wrapLine(start, end);
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let newSelection = selection;
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const frontDiff = 0;
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let endDiff;
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if (selection.indexOf(start) === 0 && selection.slice(-end.length) === end) {
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newSelection = selection.slice(start.length, selection.length - end.length);
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endDiff = -(end.length + start.length);
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} else {
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newSelection = `${start}${selection}${end}`;
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endDiff = start.length + end.length;
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}
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const selections = this.editor.cm.listSelections()[0];
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this.editor.cm.replaceSelection(newSelection);
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const headFirst = selections.head.ch <= selections.anchor.ch;
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selections.head.ch += headFirst ? frontDiff : endDiff;
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selections.anchor.ch += headFirst ? endDiff : frontDiff;
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this.editor.cm.setSelections([selections]);
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}
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replaceLineStartForOrderedList() {
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const cursor = this.editor.cm.getCursor();
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const prevLineContent = this.editor.cm.getLine(cursor.line - 1) || '';
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const listMatch = prevLineContent.match(/^(\s*)(\d)([).])\s/) || [];
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const number = (Number(listMatch[2]) || 0) + 1;
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const whiteSpace = listMatch[1] || '';
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const listMark = listMatch[3] || '.'
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const prefix = `${whiteSpace}${number}${listMark}`;
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return this.replaceLineStart(prefix);
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}
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/**
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* Cycles through the type of callout block within the selection.
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* Creates a callout block if none existing, and removes it if cycling past the danger type.
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*/
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cycleCalloutTypeAtSelection() {
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const selectionRange = this.editor.cm.listSelections()[0];
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const lineContent = this.editor.cm.getLine(selectionRange.anchor.line);
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const lineLength = lineContent.length;
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const contentRange = {
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anchor: {line: selectionRange.anchor.line, ch: 0},
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head: {line: selectionRange.anchor.line, ch: lineLength},
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};
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const formats = ['info', 'success', 'warning', 'danger'];
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const joint = formats.join('|');
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const regex = new RegExp(`class="((${joint})\\s+callout|callout\\s+(${joint}))"`, 'i');
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const matches = regex.exec(lineContent);
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const format = (matches ? (matches[2] || matches[3]) : '').toLowerCase();
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if (format === formats[formats.length - 1]) {
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this.wrapLine(`<p class="callout ${formats[formats.length - 1]}">`, '</p>');
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} else if (format === '') {
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this.wrapLine('<p class="callout info">', '</p>');
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} else {
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const newFormatIndex = formats.indexOf(format) + 1;
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const newFormat = formats[newFormatIndex];
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const newContent = lineContent.replace(matches[0], matches[0].replace(format, newFormat));
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this.editor.cm.replaceRange(newContent, contentRange.anchor, contentRange.head);
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const chDiff = newContent.length - lineContent.length;
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selectionRange.anchor.ch += chDiff;
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if (selectionRange.anchor !== selectionRange.head) {
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selectionRange.head.ch += chDiff;
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}
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this.editor.cm.setSelection(selectionRange.anchor, selectionRange.head);
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}
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}
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/**
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* Handle image upload and add image into markdown content
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* @param {File} file
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*/
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uploadImage(file) {
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if (file === null || file.type.indexOf('image') !== 0) return;
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let ext = 'png';
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if (file.name) {
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let fileNameMatches = file.name.match(/\.(.+)$/);
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if (fileNameMatches.length > 1) ext = fileNameMatches[1];
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}
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// Insert image into markdown
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const id = "image-" + Math.random().toString(16).slice(2);
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const placeholderImage = window.baseUrl(`/loading.gif#upload${id}`);
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const selectedText = this.editor.cm.getSelection();
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const placeHolderText = `![${selectedText}](${placeholderImage})`;
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const cursor = this.editor.cm.getCursor();
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this.editor.cm.replaceSelection(placeHolderText);
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this.editor.cm.setCursor({line: cursor.line, ch: cursor.ch + selectedText.length + 3});
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const remoteFilename = "image-" + Date.now() + "." + ext;
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const formData = new FormData();
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formData.append('file', file, remoteFilename);
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formData.append('uploaded_to', this.editor.config.pageId);
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window.$http.post('/images/gallery', formData).then(resp => {
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const newContent = `[![${selectedText}](${resp.data.thumbs.display})](${resp.data.url})`;
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this.findAndReplaceContent(placeHolderText, newContent);
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}).catch(err => {
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window.$events.emit('error', this.editor.config.text.imageUploadError);
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this.findAndReplaceContent(placeHolderText, selectedText);
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console.log(err);
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});
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}
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syncDisplayPosition() {
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// Thanks to http://liuhao.im/english/2015/11/10/the-sync-scroll-of-markdown-editor-in-javascript.html
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const scroll = this.editor.cm.getScrollInfo();
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const atEnd = scroll.top + scroll.clientHeight === scroll.height;
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if (atEnd) {
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this.editor.display.scrollToIndex(-1);
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return;
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}
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const lineNum = this.editor.cm.lineAtHeight(scroll.top, 'local');
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const range = this.editor.cm.getRange({line: 0, ch: null}, {line: lineNum, ch: null});
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const parser = new DOMParser();
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const doc = parser.parseFromString(this.editor.markdown.render(range), 'text/html');
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const totalLines = doc.documentElement.querySelectorAll('body > *');
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this.editor.display.scrollToIndex(totalLines.length);
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}
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/**
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* Fetch and insert the template of the given ID.
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* The page-relative position provided can be used to determine insert location if possible.
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* @param {String} templateId
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* @param {Number} posX
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* @param {Number} posY
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*/
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insertTemplate(templateId, posX, posY) {
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const cursorPos = this.editor.cm.coordsChar({left: posX, top: posY});
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this.editor.cm.setCursor(cursorPos);
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window.$http.get(`/templates/${templateId}`).then(resp => {
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const content = resp.data.markdown || resp.data.html;
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this.editor.cm.replaceSelection(content);
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});
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}
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/**
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* Insert multiple images from the clipboard.
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* @param {File[]} images
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*/
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insertClipboardImages(images) {
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const cursorPos = this.editor.cm.coordsChar({left: event.pageX, top: event.pageY});
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this.editor.cm.setCursor(cursorPos);
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for (const image of images) {
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this.uploadImage(image);
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}
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}
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} |