485 lines
15 KiB
JavaScript
485 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', false, true);
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var commentTmpl = [
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'<div class="comment-block<%= reply ? \' reply\' : \'\' %>">',
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' <div class="comment-author"><i class="icon-comment"></i> <%= 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 editor;
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var selectionMgr;
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comments.onEditorCreated = function(editorParam) {
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editor = editorParam;
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selectionMgr = editor.selectionMgr;
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};
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var yList = [];
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function setCommentEltCoordinates(commentElt, y, isNew) {
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y = Math.round(y);
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var yListIndex = y - 21;
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// Avoid overlap of comment icons
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while(yListIndex < y + 22) {
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if(yList[yListIndex]) {
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y = yListIndex + 22;
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}
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yListIndex++;
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}
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!isNew && (yList[y] = 1);
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var yOffset = -8;
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if(commentElt.className.indexOf(' icon-split') !== -1) {
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yOffset = -12;
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}
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var top = y + yOffset;
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commentElt.style.top = top + 'px';
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commentElt.style.right = '12px';
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}
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var inputElt;
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var marginElt;
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var newCommentElt = crel('a', {
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class: 'discussion icon-comment new'
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});
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function Context(commentElt, fileDesc) {
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this.commentElt = commentElt;
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this.$commentElt = $(commentElt).addClass('active');
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this.fileDesc = fileDesc;
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this.discussionIndex = commentElt.discussionIndex;
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}
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Context.prototype.getDiscussion = function() {
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if(!this.discussionIndex) {
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return this.fileDesc.newDiscussion;
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}
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return this.fileDesc.discussionList[this.discussionIndex];
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};
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Context.prototype.getPopoverElt = function() {
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return document.querySelector('.comments-popover .popover:last-child');
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};
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var currentContext;
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function movePopover(commentElt) {
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// Move popover in the margin
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var popoverElt = currentContext.getPopoverElt();
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var left = 0;
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if(popoverElt.offsetWidth < marginElt.offsetWidth - 10) {
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left = marginElt.offsetWidth - 10 - popoverElt.offsetWidth;
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}
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popoverElt.style.left = left + 'px';
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popoverElt.querySelector('.arrow').style.left = (marginElt.offsetWidth - parseInt(commentElt.style.right) - commentElt.offsetWidth / 2 - left) + 'px';
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var popoverTopOffset = window.innerHeight - currentContext.hr.getBoundingClientRect().top;
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if(popoverTopOffset < 0) {
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popoverElt.style.top = (parseInt(popoverElt.style.top) + popoverTopOffset) + 'px';
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}
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}
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var cssApplier;
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var currentFileDesc;
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var refreshTimeoutId;
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var commentEltMap = {};
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var sortedCommentEltList = [];
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var someReplies = false;
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var $openDiscussionElt;
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var $openDiscussionIconElt;
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var refreshDiscussions = _.debounce(function() {
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if(currentFileDesc === undefined) {
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return;
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}
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someReplies = false;
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sortedCommentEltList = [];
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var author = storage['author.name'];
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yList = [];
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var discussionList = _.sortBy(currentFileDesc.discussionList, function(discussion) {
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return discussion.selectionEnd;
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});
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function refreshOne() {
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var coordinates;
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if(discussionList.length === 0) {
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// Remove outdated commentElt
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_.filter(commentEltMap, function(commentElt, discussionIndex) {
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return !_.has(currentFileDesc.discussionList, discussionIndex);
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}).forEach(function(commentElt) {
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marginElt.removeChild(commentElt);
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delete commentEltMap[commentElt.discussionIndex];
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});
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// Move newCommentElt
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if(currentContext && !currentContext.discussionIndex) {
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coordinates = selectionMgr.getCoordinates(currentContext.getDiscussion().selectionEnd);
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setCommentEltCoordinates(newCommentElt, coordinates.y, true);
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inputElt.scrollTop += parseInt(newCommentElt.style.top) - inputElt.scrollTop - inputElt.offsetHeight * 3 / 4;
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movePopover(newCommentElt);
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}
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sortedCommentEltList = _.sortBy(commentEltMap, function(commentElt) {
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return commentElt.selectionEnd;
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});
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$openDiscussionElt.toggleClass('some', sortedCommentEltList.length !== 0);
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$openDiscussionElt.toggleClass('replied', someReplies);
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$openDiscussionIconElt.toggleClass('icon-chat', sortedCommentEltList.length !== 0);
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return;
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}
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var discussion = discussionList.shift();
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var commentElt = commentEltMap[discussion.discussionIndex];
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if(!commentElt) {
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commentElt = crel('a');
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}
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var className = 'discussion';
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var isReplied = !discussion.commentList || !author || _.last(discussion.commentList).author != author;
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isReplied && (someReplies = true);
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if(discussion.type == 'conflict') {
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className += ' icon-split';
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}
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else {
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className += ' icon-comment';
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}
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className += isReplied ? ' replied' : ' added';
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commentElt.className = className;
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commentElt.discussionIndex = discussion.discussionIndex;
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commentElt.selectionEnd = discussion.selectionEnd;
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coordinates = selectionMgr.getCoordinates(discussion.selectionEnd);
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setCommentEltCoordinates(commentElt, coordinates.y);
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marginElt.appendChild(commentElt);
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commentEltMap[discussion.discussionIndex] = commentElt;
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if(currentContext && currentContext.getDiscussion() === discussion) {
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inputElt.scrollTop += parseInt(commentElt.style.top) - inputElt.scrollTop - inputElt.offsetHeight * 3 / 4;
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movePopover(commentElt);
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}
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refreshTimeoutId = setTimeout(refreshOne, 5);
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}
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clearTimeout(refreshTimeoutId);
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refreshTimeoutId = setTimeout(refreshOne, 5);
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}, 50);
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comments.onLayoutResize = refreshDiscussions;
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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) {
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currentFileDesc === fileDesc && refreshDiscussions();
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};
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comments.onCommentsChanged = function(fileDesc) {
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if(currentFileDesc !== fileDesc) {
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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.discussionIndex) {
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context.getPopoverElt().querySelector('.discussion-comment-list').innerHTML = getDiscussionComments();
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}
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try {
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cssApplier.undoToRange(context.rangyRange);
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context.rangyRange.detach();
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}
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catch(e) {
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}
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var discussion = context.getDiscussion();
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context.selectionRange = selectionMgr.createRange(discussion.selectionStart, 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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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.onEditorPopover = function() {
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closeCurrentPopover();
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};
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comments.onDiscussionCreated = function(fileDesc) {
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currentFileDesc === fileDesc && refreshDiscussions();
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};
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comments.onDiscussionRemoved = function(fileDesc, discussion) {
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if(currentFileDesc === fileDesc) {
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// Close popover if the discussion has been removed
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if(currentContext !== undefined && currentContext.discussionIndex == discussion.discussionIndex) {
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closeCurrentPopover();
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}
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refreshDiscussions();
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}
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};
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function getDiscussionComments() {
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var discussion = currentContext.getDiscussion();
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var author = storage['author.name'];
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var result = [];
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if(discussion.commentList) {
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result = discussion.commentList.map(function(comment) {
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var commentAuthor = comment.author || 'Anonymous';
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return _.template(commentTmpl, {
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author: commentAuthor,
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content: comment.content,
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reply: comment.author != author
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});
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});
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}
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if(discussion.type == 'conflict') {
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result.unshift(_.template(commentTmpl, {
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author: 'StackEdit',
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content: 'Conflicting changes have been detected.',
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reply: true
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}));
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}
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return result.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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var $popoverContainer = $(crel('div', {
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class: 'comments-popover'
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}));
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$(document.body).append($popoverContainer).on('click', function(evt) {
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// Close on click outside the popover
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if(currentContext && currentContext.$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 discussion = currentContext.getDiscussion();
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var titleLength = discussion.selectionEnd - discussion.selectionStart;
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var title = editor.getValue().substr(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 > .discussion'
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});
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$(marginElt).on('show.bs.popover', function(evt) {
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eventMgr.onEditorPopover();
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var context = new Context(evt.target, currentFileDesc);
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currentContext = context;
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// If it's not an existing discussion
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var discussion = context.getDiscussion();
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if(!discussion) {
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// Get selected text
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var selectionStart = Math.min(selectionMgr.selectionStart, selectionMgr.selectionEnd);
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var selectionEnd = Math.max(selectionMgr.selectionStart, selectionMgr.selectionEnd);
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if(selectionStart === selectionEnd) {
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var offset = selectionMgr.getClosestWordOffset(selectionStart);
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selectionStart = offset.start;
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selectionEnd = offset.end;
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}
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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 = discussion;
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var coordinates = selectionMgr.getCoordinates(selectionStart);
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setCommentEltCoordinates(newCommentElt, coordinates.y, true);
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}
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context.selectionRange = selectionMgr.createRange(discussion.selectionStart, discussion.selectionEnd);
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inputElt.scrollTop += parseInt(evt.target.style.top) - inputElt.scrollTop - inputElt.offsetHeight * 3 / 4;
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}).on('shown.bs.popover', function(evt) {
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var context = currentContext;
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var popoverElt = context.getPopoverElt();
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context.$authorInputElt = $(popoverElt.querySelector('.input-comment-author')).val(storage['author.name']);
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context.$contentInputElt = $(popoverElt.querySelector('.input-comment-content'));
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context.hr = popoverElt.querySelector('hr');
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movePopover(context.commentElt);
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// Scroll to the bottom of the discussion
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popoverElt.querySelector('.scrollport').scrollTop = 9999999;
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var $addButton = $(popoverElt.querySelector('.action-add-comment'));
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$().add(context.$contentInputElt).add(context.$authorInputElt).keydown(function(evt) {
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if(evt.which === 13) {
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// Enter key
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evt.preventDefault();
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$addButton.click();
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}
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});
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$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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var discussion = context.getDiscussion();
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context.$contentInputElt.val('');
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closeCurrentPopover();
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discussion.commentList = discussion.commentList || [];
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discussion.commentList.push({
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author: author,
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content: content
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});
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var discussionList = context.fileDesc.discussionList || {};
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if(!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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discussion.discussionIndex = discussionIndex;
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discussionList[discussionIndex] = discussion;
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context.fileDesc.discussionList = discussionList; // Write discussionList in localStorage
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eventMgr.onDiscussionCreated(context.fileDesc, discussion);
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}
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else {
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context.fileDesc.discussionList = discussionList; // Write discussionList in localStorage
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eventMgr.onCommentsChanged(context.fileDesc);
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}
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inputElt.focus();
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});
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var $removeButton = $(popoverElt.querySelector('.action-remove-discussion'));
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if(evt.target.discussionIndex) {
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// If it's an existing discussion
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$removeButton.click(function() {
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closeCurrentPopover();
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var discussion = context.getDiscussion();
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delete context.fileDesc.discussionList[discussion.discussionIndex];
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context.fileDesc.discussionList = context.fileDesc.discussionList; // Write discussionList in localStorage
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eventMgr.onDiscussionRemoved(context.fileDesc, discussion);
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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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$removeButton.hide();
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}
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// Highlight selected text
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context.rangyRange = rangy.createRange();
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context.rangyRange.setStart(context.selectionRange.startContainer, context.selectionRange.startOffset);
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context.rangyRange.setEnd(context.selectionRange.endContainer, context.selectionRange.endOffset);
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setTimeout(function() { // Delay this because not refreshed properly
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if(currentContext === context) {
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cssApplier.applyToRange(context.rangyRange);
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}
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}, 50);
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// Focus on textarea
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context.$contentInputElt.focus().val(previousContent);
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}).on('hide.bs.popover', function() {
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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.$authorInputElt.val();
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// Remove highlight
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try {
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cssApplier.undoToRange(currentContext.rangyRange);
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currentContext.rangyRange.detach();
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}
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catch(e) {
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}
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currentContext = undefined;
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delete currentFileDesc.newDiscussion;
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});
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// Prevent from closing on click inside the popover
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$popoverContainer.on('click', '.popover', function(evt) {
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evt.stopPropagation();
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});
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var $newCommentElt = $(newCommentElt);
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$openDiscussionElt = $('.button-open-discussion').click(function(evt) {
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var $commentElt = $newCommentElt;
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if(currentContext) {
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if(!currentContext.discussionIndex) {
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$commentElt = $(_.first(sortedCommentEltList));
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}
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else {
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var curentIndex = -1;
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sortedCommentEltList.some(function(elt, index) {
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if(elt === currentContext.commentElt) {
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curentIndex = index;
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return true;
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}
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});
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$commentElt = $(sortedCommentEltList[(curentIndex + 1)]);
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}
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}
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if($commentElt.length === 0) {
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// Close the popover properly
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closeCurrentPopover();
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editor.focus();
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editor.adjustCursorPosition();
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}
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else {
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$commentElt.click();
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}
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evt.stopPropagation();
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});
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$openDiscussionIconElt = $openDiscussionElt.find('i');
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};
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return comments;
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});
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