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Use intercooler for comment reply form
Use intercooler for comment reply form
Previously, the comment reply form was being created entirely client-side by cloning and modifying a <template>. This was nice because it meant that a network request wasn't necessary to display the form, but it also had downsides. For example, if a topic was locked after a user had already loaded the page (or their notifications page with a comment from that topic), they would still be able to click Reply and type in a comment, and wouldn't know that replying wasn't possible until they actually tried to submit the comment. By switching to using intercooler for this form, we can do server-side validation to check permissions before showing the form, and it also simplifies some other aspects, such as the warning about replying to an old comment, which previously needed a data-js-old-warning-age attribute in the HTML, but is now just part of generating the reply form template server-side.merge-requests/106/head
Deimos
4 years ago
10 changed files with 113 additions and 139 deletions
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6tildes/scss/modules/_comment.scss
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102tildes/static/js/behaviors/comment-reply-button.js
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46tildes/static/js/behaviors/comment-reply-form.js
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1tildes/tildes/routes.py
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35tildes/tildes/templates/intercooler/comment_reply.jinja2
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42tildes/tildes/templates/macros/comments.jinja2
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3tildes/tildes/templates/notifications_unread.jinja2
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3tildes/tildes/templates/topic.jinja2
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3tildes/tildes/templates/user.jinja2
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11tildes/tildes/views/api/web/comment.py
@ -1,102 +0,0 @@ |
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// Copyright (c) 2018 Tildes contributors <code@tildes.net>
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// SPDX-License-Identifier: AGPL-3.0-or-later
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$.onmount("[data-js-comment-reply-button]", function() { |
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$(this).click(function(event) { |
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event.preventDefault(); |
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// disable click/hover events on the reply button
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$(this).css("pointer-events", "none"); |
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var $comment = $(this) |
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.parents(".comment") |
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.first(); |
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// get the replies list, or create one if it doesn't already exist
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var $replies = $comment.children(".comment-tree-replies"); |
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if (!$replies.length) { |
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var repliesList = document.createElement("ol"); |
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repliesList.setAttribute("class", "comment-tree comment-tree-replies"); |
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$comment.append(repliesList); |
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$replies = $(repliesList); |
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} |
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var $parentComment = $(this).parents("article.comment:first"); |
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var parentCommentID = $parentComment.attr("data-comment-id36"); |
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var postURL = "/api/web/comments/" + parentCommentID + "/replies"; |
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var markdownID = "markdown-reply-" + parentCommentID; |
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var previewID = markdownID + "-preview"; |
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if ($("#" + markdownID).length > 0) { |
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$("#" + markdownID).focus(); |
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return; |
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} |
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// clone and populate the 'comment-reply' template
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var template = document.getElementById("comment-reply"); |
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var clone = document.importNode(template.content, true); |
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clone.querySelector("form").setAttribute("data-ic-post-to", postURL); |
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var textarea = clone.querySelector("textarea"); |
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textarea.setAttribute("id", markdownID); |
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var preview = clone.querySelector(".form-markdown-preview"); |
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preview.setAttribute("id", previewID); |
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clone |
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.querySelector("[data-js-markdown-preview-tab] .btn") |
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.setAttribute("data-ic-target", "#" + previewID); |
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var cancelButton = clone.querySelector("[data-js-cancel-button]"); |
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$(cancelButton).on("click", function() { |
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// re-enable click/hover events on the reply button
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$(this) |
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.parents(".comment") |
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.first() |
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.find(".btn-post-action[name=reply]") |
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.first() |
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.css("pointer-events", "auto"); |
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}); |
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// If the user has text selected inside a comment when they click the reply
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// button, start the comment form off with that text inside a blockquote
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if (window.getSelection) { |
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var selectedText = ""; |
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// only capture the selected text if it's all from the same comment
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var selection = window.getSelection(); |
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var $start = $(selection.anchorNode).closest(".comment-text"); |
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var $end = $(selection.focusNode).closest(".comment-text"); |
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if ($start.is($end)) { |
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selectedText = selection.toString(); |
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} |
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if (selectedText.length > 0) { |
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selectedText = selectedText.replace(/\s+$/g, ""); |
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selectedText = selectedText.replace(/^/gm, "> "); |
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textarea.value = selectedText + "\n\n"; |
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textarea.scrollTop = textarea.scrollHeight; |
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} |
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} |
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// add a warning about the comment's age, if necessary (determined by backend)
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var warningAge = $(this).attr("data-js-old-warning-age"); |
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if (warningAge) { |
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var warningDiv = document.createElement("div"); |
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warningDiv.classList.add("warning-old-reply"); |
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warningDiv.innerHTML = |
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'<p class="text-warning text-small">The comment you\'re replying to ' + |
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"is " + |
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warningAge + |
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" old. Replying to old comments is fine as long as you're " + |
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"contributing to the discussion.</p>"; |
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clone.querySelector("form").prepend(warningDiv); |
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} |
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// update Intercooler so it knows about this new form
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Intercooler.processNodes(clone); |
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$replies.prepend(clone); |
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$.onmount(); |
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}); |
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}); |
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@ -0,0 +1,46 @@ |
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// Copyright (c) 2020 Tildes contributors <code@tildes.net>
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// SPDX-License-Identifier: AGPL-3.0-or-later
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$.onmount("[data-js-comment-reply-form]", function() { |
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var $this = $(this); |
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// the parent comment's Reply button (that was clicked to create this form)
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var $replyButton = $this |
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.closest(".comment") |
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.find(".btn-post-action[name=reply]") |
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.first(); |
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// disable click/hover events on the reply button to prevent opening multiple forms
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$replyButton.css("pointer-events", "none"); |
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// have the Cancel button re-enable click/hover events on the reply button
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$this.find("[data-js-cancel-button]").click(function() { |
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$replyButton.css("pointer-events", "auto"); |
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}); |
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var $textarea = $this.find("textarea").first(); |
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// If the user has text selected inside a comment when the reply form is created,
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// populate the textbox with that text inside a blockquote
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if (window.getSelection) { |
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var selectedText = ""; |
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// only capture the selected text if it's all from the same comment
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var selection = window.getSelection(); |
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var $start = $(selection.anchorNode).closest(".comment-text"); |
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var $end = $(selection.focusNode).closest(".comment-text"); |
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if ($start.is($end)) { |
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selectedText = selection.toString(); |
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} |
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if (selectedText.length > 0) { |
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selectedText = selectedText.replace(/\s+$/g, ""); |
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selectedText = selectedText.replace(/^/gm, "> "); |
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$textarea.val(selectedText + "\n\n"); |
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$textarea.scrollTop($textarea.prop("scrollHeight")); |
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} |
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} |
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$textarea.focus(); |
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}); |
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@ -0,0 +1,35 @@ |
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{# Copyright (c) 2020 Tildes contributors <code@tildes.net> #} |
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{# SPDX-License-Identifier: AGPL-3.0-or-later #} |
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{% from 'macros/forms.jinja2' import markdown_textarea %} |
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<li class="comment-tree-item"> |
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<form |
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method="post" |
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autocomplete="off" |
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data-ic-post-to="{{ request.route_url( |
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"ic_comment_replies", |
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comment_id36=parent_comment.comment_id36, |
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) }}" |
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data-ic-replace-target="true" |
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data-js-confirm-cancel="Discard your reply?" |
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data-js-prevent-double-submit |
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data-js-confirm-leave-page-unsaved |
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data-js-comment-reply-form |
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> |
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{% if parent_comment.age.days >= 7 %} |
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<div class="warning-old-reply"> |
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<p class="text-warning text-small">The comment you're replying to is {{ parent_comment.age|vague_timedelta_description }} old. Replying to old comments is fine as long as you're contributing to the discussion.</p> |
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</div> |
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{% endif %} |
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{{ markdown_textarea(id="markdown-reply-%s" % parent_comment.comment_id36) }} |
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<div class="form-buttons"> |
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<button type="submit" class="btn btn-primary">Post comment</button> |
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<button type="button" class="btn btn-link" data-js-cancel-button>Cancel</button> |
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</div> |
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</form> |
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</li> |
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