', '');}; + cm.setOption('extraKeys', extraKeys); + + // Update data on content change + cm.on('change', (instance, changeObj) => { + update(instance); }); - scope.$on('markdown-update', (event, value) => { - element.val(value); - scope.mdModel = value; - scope.mdChange(markdown(value)); + // Handle scroll to sync display view + cm.on('scroll', instance => { + // Thanks to http://liuhao.im/english/2015/11/10/the-sync-scroll-of-markdown-editor-in-javascript.html + let scroll = instance.getScrollInfo(); + let atEnd = scroll.top + scroll.clientHeight === scroll.height; + if (atEnd) { + scope.$emit('markdown-scroll', -1); + return; + } + let lineNum = instance.lineAtHeight(scroll.top, 'local'); + let range = instance.getRange({line: 0, ch: null}, {line: lineNum, ch: null}); + let parser = new DOMParser(); + let doc = parser.parseFromString(md.render(range), 'text/html'); + let totalLines = doc.documentElement.querySelectorAll('body > *'); + scope.$emit('markdown-scroll', totalLines.length); }); - } - } - }]); - - /** - * Markdown Editor - * Handles all functionality of the markdown editor. - */ - ngApp.directive('markdownEditor', ['$timeout', function ($timeout) { - return { - restrict: 'A', - link: function (scope, element, attrs) { - - // Elements - const input = element.find('[markdown-input] textarea').first(); - const display = element.find('.markdown-display').first(); - const insertImage = element.find('button[data-action="insertImage"]'); - const insertEntityLink = element.find('button[data-action="insertEntityLink"]') - - let currentCaretPos = 0; - - input.blur(event => { - currentCaretPos = input[0].selectionStart; + // Handle image paste + cm.on('paste', (cm, event) => { + if (!event.clipboardData || !event.clipboardData.items) return; + for (let i = 0; i < event.clipboardData.items.length; i++) { + uploadImage(event.clipboardData.items[i].getAsFile()); + } }); - // Scroll sync - let inputScrollHeight, - inputHeight, - displayScrollHeight, - displayHeight; - - function setScrollHeights() { - inputScrollHeight = input[0].scrollHeight; - inputHeight = input.height(); - displayScrollHeight = display[0].scrollHeight; - displayHeight = display.height(); - } - - setTimeout(() => { - setScrollHeights(); - }, 200); - window.addEventListener('resize', setScrollHeights); - let scrollDebounceTime = 800; - let lastScroll = 0; - input.on('scroll', event => { - let now = Date.now(); - if (now - lastScroll > scrollDebounceTime) { - setScrollHeights() + // Handle images on drag-drop + cm.on('drop', (cm, event) => { + event.stopPropagation(); + event.preventDefault(); + let cursorPos = cm.coordsChar({left: event.pageX, top: event.pageY}); + cm.setCursor(cursorPos); + if (!event.dataTransfer || !event.dataTransfer.files) return; + for (let i = 0; i < event.dataTransfer.files.length; i++) { + uploadImage(event.dataTransfer.files[i]); } - let scrollPercent = (input.scrollTop() / (inputScrollHeight - inputHeight)); - let displayScrollY = (displayScrollHeight - displayHeight) * scrollPercent; - display.scrollTop(displayScrollY); - lastScroll = now; }); - // Editor key-presses - input.keydown(event => { - // Insert image shortcut - if (event.which === 73 && event.ctrlKey && event.shiftKey) { - event.preventDefault(); - let caretPos = input[0].selectionStart; - let currentContent = input.val(); - const mdImageText = ""; - input.val(currentContent.substring(0, caretPos) + mdImageText + currentContent.substring(caretPos)); - input.focus(); - input[0].selectionStart = caretPos + ("![](".length); - input[0].selectionEnd = caretPos + ('; - return; - } + // Helper to replace editor content + function replaceContent(search, replace) { + let text = cm.getValue(); + let cursor = cm.listSelections(); + cm.setValue(text.replace(search, replace)); + cm.setSelections(cursor); + } - // Insert entity link shortcut - if (event.which === 75 && event.ctrlKey && event.shiftKey) { - showLinkSelector(); + // Helper to replace the start of the line + function replaceLineStart(newStart) { + let cursor = cm.getCursor(); + let lineContent = cm.getLine(cursor.line); + let lineLen = lineContent.length; + let lineStart = lineContent.split(' ')[0]; + + // Remove symbol if already set + if (lineStart === newStart) { + lineContent = lineContent.replace(`${newStart} `, ''); + cm.replaceRange(lineContent, {line: cursor.line, ch: 0}, {line: cursor.line, ch: lineLen}); + cm.setCursor({line: cursor.line, ch: cursor.ch - (newStart.length + 1)}); return; } - // Pass key presses to controller via event - scope.$emit('editor-keydown', event); - }); + let alreadySymbol = /^[#>`]/.test(lineStart); + let posDif = 0; + if (alreadySymbol) { + posDif = newStart.length - lineStart.length; + lineContent = lineContent.replace(lineStart, newStart).trim(); + } else if (newStart !== '') { + posDif = newStart.length + 1; + lineContent = newStart + ' ' + lineContent; + } + cm.replaceRange(lineContent, {line: cursor.line, ch: 0}, {line: cursor.line, ch: lineLen}); + cm.setCursor({line: cursor.line, ch: cursor.ch + posDif}); + } - // Insert image from image manager - insertImage.click(event => { - window.ImageManager.showExternal(image => { - let caretPos = currentCaretPos; - let currentContent = input.val(); - let mdImageText = "![" + image.name + "](" + image.thumbs.display + ")"; - input.val(currentContent.substring(0, caretPos) + mdImageText + currentContent.substring(caretPos)); - input.change(); - }); - }); + function wrapLine(start, end) { + let cursor = cm.getCursor(); + let lineContent = cm.getLine(cursor.line); + let lineLen = lineContent.length; + let newLineContent = lineContent; - function showLinkSelector() { - window.showEntityLinkSelector((entity) => { - let selectionStart = currentCaretPos; - let selectionEnd = input[0].selectionEnd; - let textSelected = (selectionEnd !== selectionStart); - let currentContent = input.val(); - - if (textSelected) { - let selectedText = currentContent.substring(selectionStart, selectionEnd); - let linkText = `[${selectedText}](${entity.link})`; - input.val(currentContent.substring(0, selectionStart) + linkText + currentContent.substring(selectionEnd)); - } else { - let linkText = ` [${entity.name}](${entity.link}) `; - input.val(currentContent.substring(0, selectionStart) + linkText + currentContent.substring(selectionStart)) - } - input.change(); - }); - } - insertEntityLink.click(showLinkSelector); - - // Upload and insert image on paste - function editorPaste(e) { - e = e.originalEvent; - if (!e.clipboardData) return - let items = e.clipboardData.items; - if (!items) return; - for (let i = 0; i < items.length; i++) { - uploadImage(items[i].getAsFile()); + if (lineContent.indexOf(start) === 0 && lineContent.slice(-end.length) === end) { + newLineContent = lineContent.slice(start.length, lineContent.length - end.length); + } else { + newLineContent = `${start}${lineContent}${end}`; } + + cm.replaceRange(newLineContent, {line: cursor.line, ch: 0}, {line: cursor.line, ch: lineLen}); + cm.setCursor({line: cursor.line, ch: cursor.ch + (newLineContent.length - lineLen)}); } - input.on('paste', editorPaste); + function wrapSelection(start, end) { + let selection = cm.getSelection(); + if (selection === '') return wrapLine(start, end); + let newSelection = selection; + let frontDiff = 0; + let endDiff = 0; - // Handle image drop, Uploads images to BookStack. - function handleImageDrop(event) { - event.stopPropagation(); - event.preventDefault(); - let files = event.originalEvent.dataTransfer.files; - for (let i = 0; i < files.length; i++) { - uploadImage(files[i]); + if (selection.indexOf(start) === 0 && selection.slice(-end.length) === end) { + newSelection = selection.slice(start.length, selection.length - end.length); + endDiff = -(end.length + start.length); + } else { + newSelection = `${start}${selection}${end}`; + endDiff = start.length + end.length; } - } - input.on('drop', handleImageDrop); + let selections = cm.listSelections()[0]; + cm.replaceSelection(newSelection); + let headFirst = selections.head.ch <= selections.anchor.ch; + selections.head.ch += headFirst ? frontDiff : endDiff; + selections.anchor.ch += headFirst ? endDiff : frontDiff; + cm.setSelections([selections]); + } // Handle image upload and add image into markdown content function uploadImage(file) { - if (file.type.indexOf('image') !== 0) return; - let formData = new FormData(); + if (file === null || file.type.indexOf('image') !== 0) return; let ext = 'png'; - let xhr = new XMLHttpRequest(); if (file.name) { let fileNameMatches = file.name.match(/\.(.+)$/); - if (fileNameMatches) { - ext = fileNameMatches[1]; - } + if (fileNameMatches.length > 1) ext = fileNameMatches[1]; } // Insert image into markdown let id = "image-" + Math.random().toString(16).slice(2); - let selectStart = input[0].selectionStart; - let selectEnd = input[0].selectionEnd; - let content = input[0].value; - let selectText = content.substring(selectStart, selectEnd); let placeholderImage = window.baseUrl(`/loading.gif#upload${id}`); - let innerContent = ((selectEnd > selectStart) ? `![${selectText}]` : '![]') + `(${placeholderImage})`; - input[0].value = content.substring(0, selectStart) + innerContent + content.substring(selectEnd); - - input.focus(); - input[0].selectionStart = selectStart; - input[0].selectionEnd = selectStart; + let selectedText = cm.getSelection(); + let placeHolderText = ``; + cm.replaceSelection(placeHolderText); let remoteFilename = "image-" + Date.now() + "." + ext; + let formData = new FormData(); formData.append('file', file, remoteFilename); - formData.append('_token', document.querySelector('meta[name="token"]').getAttribute('content')); - - xhr.open('POST', window.baseUrl('/images/gallery/upload')); - xhr.onload = function () { - let selectStart = input[0].selectionStart; - if (xhr.status === 200 || xhr.status === 201) { - let result = JSON.parse(xhr.responseText); - input[0].value = input[0].value.replace(placeholderImage, result.thumbs.display); - input.change(); - } else { - console.log('An error occurred uploading the image'); - console.log(xhr.responseText); - input[0].value = input[0].value.replace(innerContent, ''); - input.change(); - } - input.focus(); - input[0].selectionStart = selectStart; - input[0].selectionEnd = selectStart; - }; - xhr.send(formData); + + window.$http.post('/images/gallery/upload', formData).then(resp => { + replaceContent(placeholderImage, resp.data.thumbs.display); + }).catch(err => { + events.emit('error', trans('errors.image_upload_error')); + replaceContent(placeHolderText, selectedText); + console.log(err); + }); + } + + // Show the popup link selector and insert a link when finished + function showLinkSelector() { + let cursorPos = cm.getCursor('from'); + window.showEntityLinkSelector(entity => { + let selectedText = cm.getSelection() || entity.name; + let newText = `[${selectedText}](${entity.link})`; + cm.focus(); + cm.replaceSelection(newText); + cm.setCursor(cursorPos.line, cursorPos.ch + newText.length); + }); + } + + function insertLink() { + let cursorPos = cm.getCursor('from'); + let selectedText = cm.getSelection() || ''; + let newText = `[${selectedText}]()`; + cm.focus(); + cm.replaceSelection(newText); + let cursorPosDiff = (selectedText === '') ? -3 : -1; + cm.setCursor(cursorPos.line, cursorPos.ch + newText.length+cursorPosDiff); + } + + // Show the image manager and handle image insertion + function showImageManager() { + let cursorPos = cm.getCursor('from'); + window.ImageManager.show(image => { + let selectedText = cm.getSelection(); + let newText = "![" + (selectedText || image.name) + "](" + image.thumbs.display + ")"; + cm.focus(); + cm.replaceSelection(newText); + cm.setCursor(cursorPos.line, cursorPos.ch + newText.length); + }); + } + + // Update the data models and rendered output + function update(instance) { + let content = instance.getValue(); + element.val(content); + $timeout(() => { + scope.mdModel = content; + scope.mdChange(md.render(content)); + }); } + update(cm); + + // Listen to commands from parent scope + scope.$on('md-insert-link', showLinkSelector); + scope.$on('md-insert-image', showImageManager); + scope.$on('markdown-update', (event, value) => { + cm.setValue(value); + element.val(value); + scope.mdModel = value; + scope.mdChange(md.render(value)); + }); + + } + } + }]); + + /** + * Markdown Editor + * Handles all functionality of the markdown editor. + */ + ngApp.directive('markdownEditor', ['$timeout', '$rootScope', function ($timeout, $rootScope) { + return { + restrict: 'A', + link: function (scope, element, attrs) { + + // Editor Elements + const $display = element.find('.markdown-display').first(); + const $insertImage = element.find('button[data-action="insertImage"]'); + const $insertEntityLink = element.find('button[data-action="insertEntityLink"]'); + // Prevent markdown display link click redirect + $display.on('click', 'a', function(event) { + event.preventDefault(); + window.open(this.getAttribute('href')); + }); + + // Editor UI Actions + $insertEntityLink.click(e => {scope.$broadcast('md-insert-link');}); + $insertImage.click(e => {scope.$broadcast('md-insert-image');}); + + // Handle scroll sync event from editor scroll + $rootScope.$on('markdown-scroll', (event, lineCount) => { + let elems = $display[0].children[0].children; + if (elems.length > lineCount) { + let topElem = (lineCount === -1) ? elems[elems.length-1] : elems[lineCount]; + $display.animate({ + scrollTop: topElem.offsetTop + }, {queue: false, duration: 200, easing: 'linear'}); + } + }); } } }]); @@ -480,192 +387,9 @@ export default function (ngApp, events) { } }]); - /** - * Tag Autosuggestions - * Listens to child inputs and provides autosuggestions depending on field type - * and input. Suggestions provided by server. - */ - ngApp.directive('tagAutosuggestions', ['$http', function ($http) { - return { - restrict: 'A', - link: function (scope, elem, attrs) { - - // Local storage for quick caching. - const localCache = {}; - - // Create suggestion element - const suggestionBox = document.createElement('ul'); - suggestionBox.className = 'suggestion-box'; - suggestionBox.style.position = 'absolute'; - suggestionBox.style.display = 'none'; - const $suggestionBox = $(suggestionBox); - - // General state tracking - let isShowing = false; - let currentInput = false; - let active = 0; - - // Listen to input events on autosuggest fields - elem.on('input focus', '[autosuggest]', function (event) { - let $input = $(this); - let val = $input.val(); - let url = $input.attr('autosuggest'); - let type = $input.attr('autosuggest-type'); - - // Add name param to request if for a value - if (type.toLowerCase() === 'value') { - let $nameInput = $input.closest('tr').find('[autosuggest-type="name"]').first(); - let nameVal = $nameInput.val(); - if (nameVal !== '') { - url += '?name=' + encodeURIComponent(nameVal); - } - } - - let suggestionPromise = getSuggestions(val.slice(0, 3), url); - suggestionPromise.then(suggestions => { - if (val.length === 0) { - displaySuggestions($input, suggestions.slice(0, 6)); - } else { - suggestions = suggestions.filter(item => { - return item.toLowerCase().indexOf(val.toLowerCase()) !== -1; - }).slice(0, 4); - displaySuggestions($input, suggestions); - } - }); - }); - - // Hide autosuggestions when input loses focus. - // Slight delay to allow clicks. - let lastFocusTime = 0; - elem.on('blur', '[autosuggest]', function (event) { - let startTime = Date.now(); - setTimeout(() => { - if (lastFocusTime < startTime) { - $suggestionBox.hide(); - isShowing = false; - } - }, 200) - }); - elem.on('focus', '[autosuggest]', function (event) { - lastFocusTime = Date.now(); - }); - - elem.on('keydown', '[autosuggest]', function (event) { - if (!isShowing) return; - - let suggestionElems = suggestionBox.childNodes; - let suggestCount = suggestionElems.length; - - // Down arrow - if (event.keyCode === 40) { - let newActive = (active === suggestCount - 1) ? 0 : active + 1; - changeActiveTo(newActive, suggestionElems); - } - // Up arrow - else if (event.keyCode === 38) { - let newActive = (active === 0) ? suggestCount - 1 : active - 1; - changeActiveTo(newActive, suggestionElems); - } - // Enter or tab key - else if ((event.keyCode === 13 || event.keyCode === 9) && !event.shiftKey) { - let text = suggestionElems[active].textContent; - currentInput[0].value = text; - currentInput.focus(); - $suggestionBox.hide(); - isShowing = false; - if (event.keyCode === 13) { - event.preventDefault(); - return false; - } - } - }); - - // Change the active suggestion to the given index - function changeActiveTo(index, suggestionElems) { - suggestionElems[active].className = ''; - active = index; - suggestionElems[active].className = 'active'; - } - - // Display suggestions on a field - let prevSuggestions = []; - - function displaySuggestions($input, suggestions) { - - // Hide if no suggestions - if (suggestions.length === 0) { - $suggestionBox.hide(); - isShowing = false; - prevSuggestions = suggestions; - return; - } - - // Otherwise show and attach to input - if (!isShowing) { - $suggestionBox.show(); - isShowing = true; - } - if ($input !== currentInput) { - $suggestionBox.detach(); - $input.after($suggestionBox); - currentInput = $input; - } - - // Return if no change - if (prevSuggestions.join() === suggestions.join()) { - prevSuggestions = suggestions; - return; - } - - // Build suggestions - $suggestionBox[0].innerHTML = ''; - for (let i = 0; i < suggestions.length; i++) { - let suggestion = document.createElement('li'); - suggestion.textContent = suggestions[i]; - suggestion.onclick = suggestionClick; - if (i === 0) { - suggestion.className = 'active'; - active = 0; - } - $suggestionBox[0].appendChild(suggestion); - } - - prevSuggestions = suggestions; - } - - // Suggestion click event - function suggestionClick(event) { - currentInput[0].value = this.textContent; - currentInput.focus(); - $suggestionBox.hide(); - isShowing = false; - } - - // Get suggestions & cache - function getSuggestions(input, url) { - let hasQuery = url.indexOf('?') !== -1; - let searchUrl = url + (hasQuery ? '&' : '?') + 'search=' + encodeURIComponent(input); - - // Get from local cache if exists - if (typeof localCache[searchUrl] !== 'undefined') { - return new Promise((resolve, reject) => { - resolve(localCache[searchUrl]); - }); - } - - return $http.get(searchUrl).then(response => { - localCache[searchUrl] = response.data; - return response.data; - }); - } - - } - } - }]); - ngApp.directive('entityLinkSelector', [function($http) { return { - restict: 'A', + restrict: 'A', link: function(scope, element, attrs) { const selectButton = element.find('.entity-link-selector-confirm'); @@ -698,6 +422,7 @@ export default function (ngApp, events) { function hide() { element.fadeOut(240); } + scope.hide = hide; // Listen to confirmation of entity selections (doubleclick) events.listen('entity-select-confirm', entity => {