357 lines
15 KiB
JavaScript
357 lines
15 KiB
JavaScript
define([
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"jquery",
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"underscore",
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"utils",
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"storage",
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"crel",
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"rangy",
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"classes/Extension",
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"text!html/commentsPopoverContent.html",
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"bootstrap"
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], function($, _, utils, storage, crel, rangy, Extension, commentsPopoverContentHTML) {
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var comments = new Extension("comments", 'Comments');
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var commentTmpl = [
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'<div class="comment-block">',
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' <div class="comment-author"><%= author %></div>',
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' <div class="comment-content"><%= content %></div>',
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'</div>',
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].join('');
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var popoverTitleTmpl = [
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'<span class="clearfix">',
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' <a href="#" class="action-remove-discussion pull-right">',
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' <i class="icon-trash"></i>',
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' </a>',
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' <%- title %>',
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'</span>',
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].join('');
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var eventMgr;
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comments.onEventMgrCreated = function(eventMgrParam) {
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eventMgr = eventMgrParam;
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};
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var offsetMap = {};
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function setCommentEltCoordinates(commentElt, y) {
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var lineIndex = Math.round(y / 10);
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var top = (y - 8) + 'px';
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var right = ((offsetMap[lineIndex] || 0) * 25 + 10) + 'px';
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commentElt.style.top = top;
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commentElt.style.right = right;
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return lineIndex;
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}
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var inputElt;
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var marginElt;
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var commentEltList = [];
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var newCommentElt = crel('a', {
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class: 'icon-comment new'
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});
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var cursorY;
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comments.onCursorCoordinates = function(x, y) {
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cursorY = y;
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setCommentEltCoordinates(newCommentElt, cursorY);
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};
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var refreshId;
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var cssApplier;
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var currentFileDesc;
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var currentContext;
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function refreshDiscussions() {
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if(currentFileDesc === undefined) {
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return;
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}
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if(currentContext !== undefined) {
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// Refresh conversation if popover is open
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var context = currentContext;
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if(context.discussion.discussionIndex) {
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context.discussion = currentFileDesc.discussionList[context.discussion.discussionIndex];
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context.popoverElt.querySelector('.discussion-comment-list').innerHTML = getDiscussionComments();
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}
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cssApplier.undoToRange(context.rangyRange);
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context.selectionRange = inputElt.createRange(context.discussion.selectionStart, context.discussion.selectionEnd);
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// Highlight selected text
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context.rangyRange = rangy.createRange();
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context.rangyRange.setStart(context.selectionRange.startContainer, context.selectionRange.startOffset);
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context.rangyRange.setEnd(context.selectionRange.endContainer, context.selectionRange.endOffset);
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setTimeout(function() { // Need to delay this because it's not refreshed properly
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if(currentContext === context) {
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cssApplier.applyToRange(context.rangyRange);
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}
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}, 50);
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}
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var author = storage['author.name'];
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clearTimeout(refreshId);
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commentEltList.forEach(function(commentElt) {
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marginElt.removeChild(commentElt);
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});
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commentEltList = [];
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offsetMap = {};
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var discussionList = _.map(currentFileDesc.discussionList, _.identity);
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function refreshOne() {
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if(discussionList.length === 0) {
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return;
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}
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var discussion = discussionList.pop();
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var commentElt = crel('a', {
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class: 'icon-comment'
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});
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commentElt.discussion = discussion;
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var coordinates = inputElt.getOffsetCoordinates(discussion.selectionEnd);
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var lineIndex = setCommentEltCoordinates(commentElt, coordinates.y);
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offsetMap[lineIndex] = (offsetMap[lineIndex] || 0) + 1;
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marginElt.appendChild(commentElt);
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commentEltList.push(commentElt);
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// Move newCommentElt
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setCommentEltCoordinates(newCommentElt, cursorY);
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// Apply class later for fade effect
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commentElt.offsetWidth; // Refresh
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var isReplied = _.last(discussion.commentList).author != author;
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commentElt.className += isReplied ? ' replied' : ' added';
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refreshId = setTimeout(refreshOne, 50);
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}
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refreshId = setTimeout(refreshOne, 50);
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}
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var debouncedRefreshDiscussions = _.debounce(refreshDiscussions, 2000);
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comments.onFileOpen = function(fileDesc) {
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currentFileDesc = fileDesc;
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refreshDiscussions();
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};
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comments.onContentChanged = function(fileDesc, content) {
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currentFileDesc === fileDesc && debouncedRefreshDiscussions();
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};
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comments.onCommentsChanged = function(fileDesc) {
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currentFileDesc === fileDesc && refreshDiscussions();
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};
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function closeCurrentPopover() {
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currentContext && currentContext.$commentElt.popover('toggle').popover('destroy');
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}
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comments.onLayoutResize = function() {
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closeCurrentPopover();
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refreshDiscussions();
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};
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function getDiscussionComments() {
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return currentContext.discussion.commentList.map(function(comment) {
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return _.template(commentTmpl, {
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author: comment.author || 'Anonymous',
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content: comment.content
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});
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}).join('');
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}
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comments.onReady = function() {
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cssApplier = rangy.createCssClassApplier("comment-highlight", {
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normalize: false
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});
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var previousContent = '';
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inputElt = document.getElementById('wmd-input');
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marginElt = document.querySelector('#wmd-input > .editor-margin');
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marginElt.appendChild(newCommentElt);
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$(document.body).append(crel('div', {
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class: 'comments-popover'
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})).on('click', function(evt) {
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// Close on click outside the popover
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if(currentContext && currentContext.$commentElt[0] !== evt.target) {
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closeCurrentPopover();
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}
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}).popover({
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placement: 'auto top',
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container: '.comments-popover',
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html: true,
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title: function() {
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if(!currentContext) {
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return true;
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}
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var titleLength = currentContext.discussion.selectionEnd - currentContext.discussion.selectionStart;
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var title = inputElt.textContent.substr(currentContext.discussion.selectionStart, titleLength > 20 ? 20 : titleLength);
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if(titleLength > 20) {
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title += '...';
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}
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return _.template(popoverTitleTmpl, {
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title: title
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});
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},
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content: function() {
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var content = _.template(commentsPopoverContentHTML, {
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commentList: getDiscussionComments()
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});
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return content;
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},
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selector: '#wmd-input > .editor-margin > .icon-comment'
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}).on('show.bs.popover', '#wmd-input > .editor-margin', function(evt) {
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closeCurrentPopover();
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var context = {
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$commentElt: $(evt.target).addClass('active'),
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fileDesc: currentFileDesc
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};
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currentContext = context;
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inputElt.scrollTop += parseInt(evt.target.style.top) - inputElt.scrollTop - inputElt.offsetHeight * 3 / 4;
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// If it's an existing discussion
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if(evt.target.discussion) {
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context.discussion = evt.target.discussion;
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context.selectionRange = inputElt.createRange(context.discussion.selectionStart, context.discussion.selectionEnd);
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return;
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}
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// Get selected text
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var selectionStart = inputElt.selectionStart;
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var selectionEnd = inputElt.selectionEnd;
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if(selectionStart === selectionEnd) {
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var after = inputElt.textContent.substring(selectionStart);
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var match = /\S+/.exec(after);
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if(match) {
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selectionStart += match.index;
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if(match.index === 0) {
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while(selectionStart && /\S/.test(inputElt.textContent[selectionStart - 1])) {
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selectionStart--;
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}
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}
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selectionEnd += match.index + match[0].length;
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}
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}
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context.selectionRange = inputElt.createRange(selectionStart, selectionEnd);
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context.discussion = {
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selectionStart: selectionStart,
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selectionEnd: selectionEnd,
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commentList: []
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};
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currentFileDesc.newDiscussion = context.discussion;
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}).on('shown.bs.popover', '#wmd-input > .editor-margin', function(evt) {
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// Move the popover in the margin
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var context = currentContext;
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context.popoverElt = document.querySelector('.comments-popover .popover:last-child');
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var left = -5;
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if(context.popoverElt.offsetWidth < marginElt.offsetWidth - 5) {
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left = marginElt.offsetWidth - 10 - context.popoverElt.offsetWidth;
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}
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context.popoverElt.style.left = left + 'px';
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context.popoverElt.querySelector('.arrow').style.left = (marginElt.offsetWidth - parseInt(evt.target.style.right) - evt.target.offsetWidth / 2 - left) + 'px';
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// Scroll to the bottom of the discussion
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context.popoverElt.querySelector('.popover-content').scrollTop = 9999999;
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context.$authorInputElt = $(context.popoverElt.querySelector('.input-comment-author')).val(storage['author.name']);
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context.$contentInputElt = $(context.popoverElt.querySelector('.input-comment-content'));
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var $addButton = $(context.popoverElt.querySelector('.action-add-comment'));
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context.$contentInputElt.keydown(function(evt) {
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// Enter key
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switch(evt.which) {
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case 13:
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evt.preventDefault();
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$addButton.click();
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return;
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case 27:
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evt.preventDefault();
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closeCurrentPopover();
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inputElt.focus();
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return;
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}
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});
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$addButton.click(function(evt) {
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var author = utils.getInputTextValue(context.$authorInputElt);
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var content = utils.getInputTextValue(context.$contentInputElt, evt);
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if(evt.isPropagationStopped()) {
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return;
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}
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context.$contentInputElt.val('');
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closeCurrentPopover();
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var discussionList = context.fileDesc.discussionList || {};
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if(!context.discussion.discussionIndex) {
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// Create discussion index
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var discussionIndex;
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do {
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discussionIndex = utils.randomString();
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} while(_.has(discussionList, discussionIndex));
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context.discussion.discussionIndex = discussionIndex;
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discussionList[discussionIndex] = context.discussion;
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}
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context.discussion.commentList.push({
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author: author,
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content: content
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});
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context.fileDesc.discussionList = discussionList; // Write discussionList in localStorage
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eventMgr.onCommentsChanged(context.fileDesc);
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inputElt.focus();
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});
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var $removeButton = $(context.popoverElt.querySelector('.action-remove-discussion'));
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if(evt.target.discussion) {
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// If it's an existing discussion
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var $removeCancelButton = $(context.popoverElt.querySelector('.action-remove-discussion-cancel'));
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var $removeConfirmButton = $(context.popoverElt.querySelector('.action-remove-discussion-confirm'));
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$removeButton.click(function() {
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$(context.popoverElt.querySelector('.new-comment-block')).addClass('hide');
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$(context.popoverElt.querySelector('.remove-discussion-confirm')).removeClass('hide');
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context.popoverElt.querySelector('.popover-content').scrollTop = 9999999;
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});
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$removeCancelButton.click(function() {
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$(context.popoverElt.querySelector('.new-comment-block')).removeClass('hide');
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$(context.popoverElt.querySelector('.remove-discussion-confirm')).addClass('hide');
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context.popoverElt.querySelector('.popover-content').scrollTop = 9999999;
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context.$contentInputElt.focus();
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});
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$removeConfirmButton.click(function() {
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closeCurrentPopover();
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delete context.fileDesc.discussionList[context.discussion.discussionIndex];
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context.fileDesc.discussionList = context.fileDesc.discussionList; // Write discussionList in localStorage
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eventMgr.onCommentsChanged(context.fileDesc);
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inputElt.focus();
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});
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}
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else {
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// Otherwise hide the remove button
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$removeButton.hide();
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}
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// Prevent from closing on click inside the popover
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$(context.popoverElt).on('click', function(evt) {
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evt.stopPropagation();
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});
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// Highlight selected text
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context.rangyRange = rangy.createRange();
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context.rangyRange.setStart(context.selectionRange.startContainer, context.selectionRange.startOffset);
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context.rangyRange.setEnd(context.selectionRange.endContainer, context.selectionRange.endOffset);
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setTimeout(function() { // Need to delay this because it's not refreshed properly
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if(currentContext === context) {
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cssApplier.applyToRange(context.rangyRange);
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}
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}, 50);
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// Focus on textarea
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context.$contentInputElt.focus().val(previousContent);
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}).on('hide.bs.popover', '#wmd-input > .editor-margin', function(evt) {
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if(!currentContext) {
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return;
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}
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currentContext.$commentElt.removeClass('active');
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// Save content and author for later
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previousContent = currentContext.$contentInputElt.val();
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storage['author.name'] = currentContext.$authorInputElt.val();
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// Remove highlight
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cssApplier.undoToRange(currentContext.rangyRange);
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currentContext = undefined;
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delete currentFileDesc.newDiscussion;
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});
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};
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return comments;
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});
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