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Copy code as GFM from diffs, blobs and GFM code blocks

This commit is contained in:
Douwe Maan 2017-03-10 15:34:29 -06:00
parent b716680692
commit 6890327762
6 changed files with 582 additions and 388 deletions
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72
app/assets/javascripts/copy_as_gfm.js
View File

@ -118,10 +118,10 @@ const gfmRules = {
},
SyntaxHighlightFilter: {
'pre.code.highlight'(el, t) {
const text = t.trim();
const text = t.trimRight();
let lang = el.getAttribute('lang');
if (lang === 'plaintext') {
if (!lang || lang === 'plaintext') {
lang = '';
}
@ -157,7 +157,7 @@ const gfmRules = {
const backticks = Array(backtickCount + 1).join('`');
const spaceOrNoSpace = backtickCount > 1 ? ' ' : '';
return backticks + spaceOrNoSpace + text + spaceOrNoSpace + backticks;
return backticks + spaceOrNoSpace + text.trim() + spaceOrNoSpace + backticks;
},
'blockquote'(el, text) {
return text.trim().split('\n').map(s => `> ${s}`.trim()).join('\n');
@ -273,28 +273,29 @@ const gfmRules = {
class CopyAsGFM {
constructor() {
$(document).on('copy', '.md, .wiki', this.handleCopy);
$(document).on('paste', '.js-gfm-input', this.handlePaste);
$(document).on('copy', '.md, .wiki', (e) => { this.copyAsGFM(e, CopyAsGFM.transformGFMSelection); });
$(document).on('copy', 'pre.code.highlight, .diff-content .line_content', (e) => { this.copyAsGFM(e, CopyAsGFM.transformCodeSelection); });
$(document).on('paste', '.js-gfm-input', this.pasteGFM.bind(this));
}
handleCopy(e) {
copyAsGFM(e, transformer) {
const clipboardData = e.originalEvent.clipboardData;
if (!clipboardData) return;
const documentFragment = window.gl.utils.getSelectedFragment();
if (!documentFragment) return;
// If the documentFragment contains more than just Markdown, don't copy as GFM.
if (documentFragment.querySelector('.md, .wiki')) return;
const el = transformer(documentFragment.cloneNode(true));
if (!el) return;
e.preventDefault();
clipboardData.setData('text/plain', documentFragment.textContent);
e.stopPropagation();
const gfm = CopyAsGFM.nodeToGFM(documentFragment);
clipboardData.setData('text/x-gfm', gfm);
clipboardData.setData('text/plain', el.textContent);
clipboardData.setData('text/x-gfm', CopyAsGFM.nodeToGFM(el));
}
handlePaste(e) {
pasteGFM(e) {
const clipboardData = e.originalEvent.clipboardData;
if (!clipboardData) return;
@ -306,7 +307,54 @@ class CopyAsGFM {
window.gl.utils.insertText(e.target, gfm);
}
static transformGFMSelection(documentFragment) {
// If the documentFragment contains more than just Markdown, don't copy as GFM.
if (documentFragment.querySelector('.md, .wiki')) return null;
return documentFragment;
}
static transformCodeSelection(documentFragment) {
const lineEls = documentFragment.querySelectorAll('.line');
let codeEl;
if (lineEls.length > 1) {
codeEl = document.createElement('pre');
codeEl.className = 'code highlight';
const lang = lineEls[0].getAttribute('lang');
if (lang) {
codeEl.setAttribute('lang', lang);
}
} else {
codeEl = document.createElement('code');
}
if (lineEls.length > 0) {
for (let i = 0; i < lineEls.length; i += 1) {
const lineEl = lineEls[i];
codeEl.appendChild(lineEl);
codeEl.appendChild(document.createTextNode('\n'));
}
} else {
codeEl.appendChild(documentFragment);
}
return codeEl;
}
static selectionToGFM(documentFragment, transformer) {
const el = transformer(documentFragment.cloneNode(true));
if (!el) return null;
return CopyAsGFM.nodeToGFM(el);
}
static nodeToGFM(node) {
if (node.nodeType === Node.COMMENT_NODE) {
return '';
}
if (node.nodeType === Node.TEXT_NODE) {
return node.textContent;
}

4
changelogs/unreleased/dm-copy-code-as-gfm.yml Normal file
View File

@ -0,0 +1,4 @@
---
title: Copy code as GFM from diffs, blobs and GFM code blocks
merge_request:
author:

13
lib/banzai/filter/syntax_highlight_filter.rb
View File

@ -5,8 +5,6 @@ module Banzai
# HTML Filter to highlight fenced code blocks
#
class SyntaxHighlightFilter < HTML::Pipeline::Filter
include Rouge::Plugins::Redcarpet
def call
doc.search('pre > code').each do |node|
highlight_node(node)
@ -23,7 +21,7 @@ module Banzai
lang = lexer.tag
begin
code = format(lex(lexer, code))
code = Rouge::Formatters::HTMLGitlab.format(lex(lexer, code), tag: lang)
css_classes << " js-syntax-highlight #{lang}"
rescue
@ -45,10 +43,6 @@ module Banzai
lexer.lex(code)
end
def format(tokens)
rouge_formatter.format(tokens)
end
def lexer_for(language)
(Rouge::Lexer.find(language) || Rouge::Lexers::PlainText).new
end
@ -57,11 +51,6 @@ module Banzai
# Replace the parent `pre` element with the entire highlighted block
node.parent.replace(highlighted)
end
# Override Rouge::Plugins::Redcarpet#rouge_formatter
def rouge_formatter(lexer = nil)
@rouge_formatter ||= Rouge::Formatters::HTML.new
end
end
end
end

4
lib/gitlab/highlight.rb
View File

@ -14,7 +14,7 @@ module Gitlab
end
def initialize(blob_name, blob_content, repository: nil)
@formatter = Rouge::Formatters::HTMLGitlab.new
@formatter = Rouge::Formatters::HTMLGitlab
@repository = repository
@blob_name = blob_name
@blob_content = blob_content
@ -28,7 +28,7 @@ module Gitlab
hl_lexer = self.lexer
end
@formatter.format(hl_lexer.lex(text, continue: continue)).html_safe
@formatter.format(hl_lexer.lex(text, continue: continue), tag: hl_lexer.tag).html_safe
rescue
@formatter.format(Rouge::Lexers::PlainText.lex(text)).html_safe
end

5
lib/rouge/formatters/html_gitlab.rb
View File

@ -6,9 +6,10 @@ module Rouge
# Creates a new <tt>Rouge::Formatter::HTMLGitlab</tt> instance.
#
# [+linenostart+] The line number for the first line (default: 1).
def initialize(linenostart: 1)
def initialize(linenostart: 1, tag: nil)
@linenostart = linenostart
@line_number = linenostart
@tag = tag
end
def stream(tokens, &b)
@ -17,7 +18,7 @@ module Rouge
yield "\n" unless is_first
is_first = false
yield %(<span id="LC#{@line_number}" class="line">)
yield %(<span id="LC#{@line_number}" class="line" lang="#{@tag}">)
line.each { |token, value| yield span(token, value.chomp) }
yield %(</span>)

872
spec/features/copy_as_gfm_spec.rb
View File

@ -2,437 +2,589 @@ require 'spec_helper'
describe 'Copy as GFM', feature: true, js: true do
include GitlabMarkdownHelper
include RepoHelpers
include ActionView::Helpers::JavaScriptHelper
before do
@feat = MarkdownFeature.new
# `markdown` helper expects a `@project` variable
@project = @feat.project
visit namespace_project_issue_path(@project.namespace, @project, @feat.issue)
login_as :admin
end
# The filters referenced in lib/banzai/pipeline/gfm_pipeline.rb convert GitLab Flavored Markdown (GFM) to HTML.
# The handlers defined in app/assets/javascripts/copy_as_gfm.js.es6 consequently convert that same HTML to GFM.
# To make sure these filters and handlers are properly aligned, this spec tests the GFM-to-HTML-to-GFM cycle
# by verifying (`html_to_gfm(gfm_to_html(gfm)) == gfm`) for a number of examples of GFM for every filter, using the `verify` helper.
describe 'Copying rendered GFM' do
before do
@feat = MarkdownFeature.new
# These are all in a single `it` for performance reasons.
it 'works', :aggregate_failures do
verify(
'nesting',
# `markdown` helper expects a `@project` variable
@project = @feat.project
'> 1. [x] **[$`2 + 2`$ {-=-}{+=+} 2^2 ~~:thumbsup:~~](http://google.com)**'
)
visit namespace_project_issue_path(@project.namespace, @project, @feat.issue)
end
verify(
'a real world example from the gitlab-ce README',
# The filters referenced in lib/banzai/pipeline/gfm_pipeline.rb convert GitLab Flavored Markdown (GFM) to HTML.
# The handlers defined in app/assets/javascripts/copy_as_gfm.js.es6 consequently convert that same HTML to GFM.
# To make sure these filters and handlers are properly aligned, this spec tests the GFM-to-HTML-to-GFM cycle
# by verifying (`html_to_gfm(gfm_to_html(gfm)) == gfm`) for a number of examples of GFM for every filter, using the `verify` helper.
<<-GFM.strip_heredoc
# GitLab
# These are all in a single `it` for performance reasons.
it 'works', :aggregate_failures do
verify(
'nesting',
[![Build status](https://gitlab.com/gitlab-org/gitlab-ce/badges/master/build.svg)](https://gitlab.com/gitlab-org/gitlab-ce/commits/master)
[![CE coverage report](https://gitlab.com/gitlab-org/gitlab-ce/badges/master/coverage.svg?job=coverage)](https://gitlab-org.gitlab.io/gitlab-ce/coverage-ruby)
[![Code Climate](https://codeclimate.com/github/gitlabhq/gitlabhq.svg)](https://codeclimate.com/github/gitlabhq/gitlabhq)
[![Core Infrastructure Initiative Best Practices](https://bestpractices.coreinfrastructure.org/projects/42/badge)](https://bestpractices.coreinfrastructure.org/projects/42)
'> 1. [x] **[$`2 + 2`$ {-=-}{+=+} 2^2 ~~:thumbsup:~~](http://google.com)**'
)
## Canonical source
verify(
'a real world example from the gitlab-ce README',
The canonical source of GitLab Community Edition is [hosted on GitLab.com](https://gitlab.com/gitlab-org/gitlab-ce/).
<<-GFM.strip_heredoc
# GitLab
## Open source software to collaborate on code
[![Build status](https://gitlab.com/gitlab-org/gitlab-ce/badges/master/build.svg)](https://gitlab.com/gitlab-org/gitlab-ce/commits/master)
[![CE coverage report](https://gitlab.com/gitlab-org/gitlab-ce/badges/master/coverage.svg?job=coverage)](https://gitlab-org.gitlab.io/gitlab-ce/coverage-ruby)
[![Code Climate](https://codeclimate.com/github/gitlabhq/gitlabhq.svg)](https://codeclimate.com/github/gitlabhq/gitlabhq)
[![Core Infrastructure Initiative Best Practices](https://bestpractices.coreinfrastructure.org/projects/42/badge)](https://bestpractices.coreinfrastructure.org/projects/42)
To see how GitLab looks please see the [features page on our website](https://about.gitlab.com/features/).
## Canonical source
The canonical source of GitLab Community Edition is [hosted on GitLab.com](https://gitlab.com/gitlab-org/gitlab-ce/).
## Open source software to collaborate on code
To see how GitLab looks please see the [features page on our website](https://about.gitlab.com/features/).
- Manage Git repositories with fine grained access controls that keep your code secure
- Manage Git repositories with fine grained access controls that keep your code secure
- Perform code reviews and enhance collaboration with merge requests
- Perform code reviews and enhance collaboration with merge requests
- Complete continuous integration (CI) and CD pipelines to builds, test, and deploy your applications
- Complete continuous integration (CI) and CD pipelines to builds, test, and deploy your applications
- Each project can also have an issue tracker, issue board, and a wiki
- Each project can also have an issue tracker, issue board, and a wiki
- Used by more than 100,000 organizations, GitLab is the most popular solution to manage Git repositories on-premises
- Used by more than 100,000 organizations, GitLab is the most popular solution to manage Git repositories on-premises
- Completely free and open source (MIT Expat license)
GFM
)
- Completely free and open source (MIT Expat license)
GFM
)
verify(
'InlineDiffFilter',
verify(
'InlineDiffFilter',
'{-Deleted text-}',
'{+Added text+}'
)
'{-Deleted text-}',
'{+Added text+}'
)
verify(
'TaskListFilter',
verify(
'TaskListFilter',
'- [ ] Unchecked task',
'- [x] Checked task',
'1. [ ] Unchecked numbered task',
'1. [x] Checked numbered task'
)
'- [ ] Unchecked task',
'- [x] Checked task',
'1. [ ] Unchecked numbered task',
'1. [x] Checked numbered task'
)
verify(
'ReferenceFilter',
verify(
'ReferenceFilter',
# issue reference
@feat.issue.to_reference,
# full issue reference
@feat.issue.to_reference(full: true),
# issue URL
namespace_project_issue_url(@project.namespace, @project, @feat.issue),
# issue URL with note anchor
namespace_project_issue_url(@project.namespace, @project, @feat.issue, anchor: 'note_123'),
# issue link
"[Issue](#{namespace_project_issue_url(@project.namespace, @project, @feat.issue)})",
# issue link with note anchor
"[Issue](#{namespace_project_issue_url(@project.namespace, @project, @feat.issue, anchor: 'note_123')})",
)
# issue reference
@feat.issue.to_reference,
# full issue reference
@feat.issue.to_reference(full: true),
# issue URL
namespace_project_issue_url(@project.namespace, @project, @feat.issue),
# issue URL with note anchor
namespace_project_issue_url(@project.namespace, @project, @feat.issue, anchor: 'note_123'),
# issue link
"[Issue](#{namespace_project_issue_url(@project.namespace, @project, @feat.issue)})",
# issue link with note anchor
"[Issue](#{namespace_project_issue_url(@project.namespace, @project, @feat.issue, anchor: 'note_123')})",
)
verify(
'AutolinkFilter',
verify(
'AutolinkFilter',
'https://example.com'
)
'https://example.com'
)
verify(
'TableOfContentsFilter',
verify(
'TableOfContentsFilter',
'[[_TOC_]]'
)
'[[_TOC_]]'
)
verify(
'EmojiFilter',
verify(
'EmojiFilter',
':thumbsup:'
)
':thumbsup:'
)
verify(
'ImageLinkFilter',
verify(
'ImageLinkFilter',
'![Image](https://example.com/image.png)'
)
'![Image](https://example.com/image.png)'
)
verify(
'VideoLinkFilter',
verify(
'VideoLinkFilter',
'![Video](https://example.com/video.mp4)'
)
'![Video](https://example.com/video.mp4)'
)
verify(
'MathFilter: math as converted from GFM to HTML',
verify(
'MathFilter: math as converted from GFM to HTML',
'$`c = \pm\sqrt{a^2 + b^2}`$',
'$`c = \pm\sqrt{a^2 + b^2}`$',
# math block
<<-GFM.strip_heredoc
```math
c = \pm\sqrt{a^2 + b^2}
```
GFM
)
# math block
<<-GFM.strip_heredoc
```math
c = \pm\sqrt{a^2 + b^2}
```
GFM
)
aggregate_failures('MathFilter: math as transformed from HTML to KaTeX') do
gfm = '$`c = \pm\sqrt{a^2 + b^2}`$'
aggregate_failures('MathFilter: math as transformed from HTML to KaTeX') do
gfm = '$`c = \pm\sqrt{a^2 + b^2}`$'
html = <<-HTML.strip_heredoc
<span class="katex">
<span class="katex-mathml">
<math>
<semantics>
<mrow>
<mi>c</mi>
<mo>=</mo>
<mo>±</mo>
<msqrt>
<mrow>
<msup>
<mi>a</mi>
<mn>2</mn>
</msup>
<mo>+</mo>
<msup>
<mi>b</mi>
<mn>2</mn>
</msup>
</mrow>
</msqrt>
</mrow>
<annotation encoding="application/x-tex">c = \\pm\\sqrt{a^2 + b^2}</annotation>
</semantics>
</math>
</span>
<span class="katex-html" aria-hidden="true">
<span class="strut" style="height: 0.913389em;"></span>
<span class="strut bottom" style="height: 1.04em; vertical-align: -0.126611em;"></span>
<span class="base textstyle uncramped">
<span class="mord mathit">c</span>
<span class="mrel">=</span>
<span class="mord">±</span>
<span class="sqrt mord"><span class="sqrt-sign" style="top: -0.073389em;">
<span class="style-wrap reset-textstyle textstyle uncramped">√</span>
</span>
<span class="vlist">
<span class="" style="top: 0em;">
<span class="fontsize-ensurer reset-size5 size5">
<span class="" style="font-size: 1em;">​</span>
</span>
<span class="mord textstyle cramped">
<span class="mord">
<span class="mord mathit">a</span>
<span class="msupsub">
<span class="vlist">
<span class="" style="top: -0.289em; margin-right: 0.05em;">
<span class="fontsize-ensurer reset-size5 size5">
<span class="" style="font-size: 0em;">​</span>
</span>
<span class="reset-textstyle scriptstyle cramped">
<span class="mord mathrm">2</span>
html = <<-HTML.strip_heredoc
<span class="katex">
<span class="katex-mathml">
<math>
<semantics>
<mrow>
<mi>c</mi>
<mo>=</mo>
<mo>±</mo>
<msqrt>
<mrow>
<msup>
<mi>a</mi>
<mn>2</mn>
</msup>
<mo>+</mo>
<msup>
<mi>b</mi>
<mn>2</mn>
</msup>
</mrow>
</msqrt>
</mrow>
<annotation encoding="application/x-tex">c = \\pm\\sqrt{a^2 + b^2}</annotation>
</semantics>
</math>
</span>
<span class="katex-html" aria-hidden="true">
<span class="strut" style="height: 0.913389em;"></span>
<span class="strut bottom" style="height: 1.04em; vertical-align: -0.126611em;"></span>
<span class="base textstyle uncramped">
<span class="mord mathit">c</span>
<span class="mrel">=</span>
<span class="mord">±</span>
<span class="sqrt mord"><span class="sqrt-sign" style="top: -0.073389em;">
<span class="style-wrap reset-textstyle textstyle uncramped">√</span>
</span>
<span class="vlist">
<span class="" style="top: 0em;">
<span class="fontsize-ensurer reset-size5 size5">
<span class="" style="font-size: 1em;">​</span>
</span>
<span class="mord textstyle cramped">
<span class="mord">
<span class="mord mathit">a</span>
<span class="msupsub">
<span class="vlist">
<span class="" style="top: -0.289em; margin-right: 0.05em;">
<span class="fontsize-ensurer reset-size5 size5">
<span class="" style="font-size: 0em;">​</span>
</span>
<span class="reset-textstyle scriptstyle cramped">
<span class="mord mathrm">2</span>
</span>
</span>
<span class="baseline-fix">
<span class="fontsize-ensurer reset-size5 size5">
<span class="" style="font-size: 0em;">​</span>
</span>
​</span>
</span>
<span class="baseline-fix">
<span class="fontsize-ensurer reset-size5 size5">
<span class="" style="font-size: 0em;">​</span>
</span>
​</span>
</span>
</span>
</span>
<span class="mbin">+</span>
<span class="mord">
<span class="mord mathit">b</span>
<span class="msupsub">
<span class="vlist">
<span class="" style="top: -0.289em; margin-right: 0.05em;">
<span class="fontsize-ensurer reset-size5 size5">
<span class="" style="font-size: 0em;">​</span>
</span>
<span class="reset-textstyle scriptstyle cramped">
<span class="mord mathrm">2</span>
<span class="mbin">+</span>
<span class="mord">
<span class="mord mathit">b</span>
<span class="msupsub">
<span class="vlist">
<span class="" style="top: -0.289em; margin-right: 0.05em;">
<span class="fontsize-ensurer reset-size5 size5">
<span class="" style="font-size: 0em;">​</span>
</span>
<span class="reset-textstyle scriptstyle cramped">
<span class="mord mathrm">2</span>
</span>
</span>
<span class="baseline-fix">
<span class="fontsize-ensurer reset-size5 size5">
<span class="" style="font-size: 0em;">​</span>
</span>
​</span>
</span>
<span class="baseline-fix">
<span class="fontsize-ensurer reset-size5 size5">
<span class="" style="font-size: 0em;">​</span>
</span>
​</span>
</span>
</span>
</span>
</span>
</span>
<span class="" style="top: -0.833389em;">
<span class="fontsize-ensurer reset-size5 size5">
<span class="" style="font-size: 1em;">​</span>
<span class="" style="top: -0.833389em;">
<span class="fontsize-ensurer reset-size5 size5">
<span class="" style="font-size: 1em;">​</span>
</span>
<span class="reset-textstyle textstyle uncramped sqrt-line"></span>
</span>
<span class="reset-textstyle textstyle uncramped sqrt-line"></span>
<span class="baseline-fix">
<span class="fontsize-ensurer reset-size5 size5">
<span class="" style="font-size: 1em;">​</span>
</span>
​</span>
</span>
<span class="baseline-fix">
<span class="fontsize-ensurer reset-size5 size5">
<span class="" style="font-size: 1em;">​</span>
</span>
​</span>
</span>
</span>
</span>
</span>
</span>
HTML
HTML
output_gfm = html_to_gfm(html)
expect(output_gfm.strip).to eq(gfm.strip)
output_gfm = html_to_gfm(html)
expect(output_gfm.strip).to eq(gfm.strip)
end
verify(
'SanitizationFilter',
<<-GFM.strip_heredoc
<a name="named-anchor"></a>
<sub>sub</sub>
<dl>
<dt>dt</dt>
<dd>dd</dd>
</dl>
<kbd>kbd</kbd>
<q>q</q>
<samp>samp</samp>
<var>var</var>
<ruby>ruby</ruby>
<rt>rt</rt>
<rp>rp</rp>
<abbr>abbr</abbr>
<summary>summary</summary>
<details>details</details>
GFM
)
verify(
'SanitizationFilter',
<<-GFM.strip_heredoc,
```
Plain text
```
GFM
<<-GFM.strip_heredoc,
```ruby
def foo
bar
end
```
GFM
<<-GFM.strip_heredoc
Foo
This is an example of GFM
```js
Code goes here
```
GFM
)
verify(
'MarkdownFilter',
"Line with two spaces at the end \nto insert a linebreak",
'`code`',
'`` code with ` ticks ``',
'> Quote',
# multiline quote
<<-GFM.strip_heredoc,
> Multiline
> Quote
>
> With multiple paragraphs
GFM
'![Image](https://example.com/image.png)',
'# Heading with no anchor link',
'[Link](https://example.com)',
'- List item',
# multiline list item
<<-GFM.strip_heredoc,
- Multiline
List item
GFM
# nested lists
<<-GFM.strip_heredoc,
- Nested
- Lists
GFM
# list with blockquote
<<-GFM.strip_heredoc,
- List
> Blockquote
GFM
'1. Numbered list item',
# multiline numbered list item
<<-GFM.strip_heredoc,
1. Multiline
Numbered list item
GFM
# nested numbered list
<<-GFM.strip_heredoc,
1. Nested
1. Numbered lists
GFM
'# Heading',
'## Heading',
'### Heading',
'#### Heading',
'##### Heading',
'###### Heading',
'**Bold**',
'_Italics_',
'~~Strikethrough~~',
'2^2',
'-----',
# table
<<-GFM.strip_heredoc,
| Centered | Right | Left |
|:--------:|------:|------|
| Foo | Bar | **Baz** |
| Foo | Bar | **Baz** |
GFM
# table with empty heading
<<-GFM.strip_heredoc,
| | x | y |
|---|---|---|
| a | 1 | 0 |
| b | 0 | 1 |
GFM
)
end
verify(
'SanitizationFilter',
alias_method :gfm_to_html, :markdown
<<-GFM.strip_heredoc
<a name="named-anchor"></a>
<sub>sub</sub>
<dl>
<dt>dt</dt>
<dd>dd</dd>
</dl>
<kbd>kbd</kbd>
<q>q</q>
<samp>samp</samp>
<var>var</var>
<ruby>ruby</ruby>
<rt>rt</rt>
<rp>rp</rp>
<abbr>abbr</abbr>
<summary>summary</summary>
<details>details</details>
GFM
)
verify(
'SanitizationFilter',
<<-GFM.strip_heredoc,
```
Plain text
```
GFM
<<-GFM.strip_heredoc,
```ruby
def foo
bar
def verify(label, *gfms)
aggregate_failures(label) do
gfms.each do |gfm|
html = gfm_to_html(gfm)
output_gfm = html_to_gfm(html)
expect(output_gfm.strip).to eq(gfm.strip)
end
```
GFM
end
end
<<-GFM.strip_heredoc
Foo
This is an example of GFM
```js
Code goes here
```
GFM
)
verify(
'MarkdownFilter',
"Line with two spaces at the end \nto insert a linebreak",
'`code`',
'`` code with ` ticks ``',
'> Quote',
# multiline quote
<<-GFM.strip_heredoc,
> Multiline
> Quote
>
> With multiple paragraphs
GFM
'![Image](https://example.com/image.png)',
'# Heading with no anchor link',
'[Link](https://example.com)',
'- List item',
# multiline list item
<<-GFM.strip_heredoc,
- Multiline
List item
GFM
# nested lists
<<-GFM.strip_heredoc,
- Nested
- Lists
GFM
# list with blockquote
<<-GFM.strip_heredoc,
- List
> Blockquote
GFM
'1. Numbered list item',
# multiline numbered list item
<<-GFM.strip_heredoc,
1. Multiline
Numbered list item
GFM
# nested numbered list
<<-GFM.strip_heredoc,
1. Nested
1. Numbered lists
GFM
'# Heading',
'## Heading',
'### Heading',
'#### Heading',
'##### Heading',
'###### Heading',
'**Bold**',
'_Italics_',
'~~Strikethrough~~',
'2^2',
'-----',
# table
<<-GFM.strip_heredoc,
| Centered | Right | Left |
|:--------:|------:|------|
| Foo | Bar | **Baz** |
| Foo | Bar | **Baz** |
GFM
# table with empty heading
<<-GFM.strip_heredoc,
| | x | y |
|---|---|---|
| a | 1 | 0 |
| b | 0 | 1 |
GFM
)
# Fake a `current_user` helper
def current_user
@feat.user
end
end
alias_method :gfm_to_html, :markdown
describe 'Copying code' do
let(:project) { create(:project) }
def html_to_gfm(html)
context 'from a diff' do
before do
visit namespace_project_commit_path(project.namespace, project, sample_commit.id)
end
context 'selecting one word of text' do
it 'copies as inline code' do
verify(
'[id="2f6fcd96b88b36ce98c38da085c795a27d92a3dd_10_9"] .line .no',
'`RuntimeError`'
)
end
end
context 'selecting one line of text' do
it 'copies as inline code' do
verify(
'[id="2f6fcd96b88b36ce98c38da085c795a27d92a3dd_10_9"] .line',
'`raise RuntimeError, "System commands must be given as an array of strings"`'
)
end
end
context 'selecting multiple lines of text' do
it 'copies as a code block' do
verify(
'[id="2f6fcd96b88b36ce98c38da085c795a27d92a3dd_10_9"], [id="2f6fcd96b88b36ce98c38da085c795a27d92a3dd_10_10"]',
<<-GFM.strip_heredoc,
```ruby
raise RuntimeError, "System commands must be given as an array of strings"
end
```
GFM
)
end
end
end
context 'from a blob' do
before do
visit namespace_project_blob_path(project.namespace, project, File.join('master', 'files/ruby/popen.rb'))
end
context 'selecting one word of text' do
it 'copies as inline code' do
verify(
'.line[id="LC9"] .no',
'`RuntimeError`'
)
end
end
context 'selecting one line of text' do
it 'copies as inline code' do
verify(
'.line[id="LC9"]',
'`raise RuntimeError, "System commands must be given as an array of strings"`'
)
end
end
context 'selecting multiple lines of text' do
it 'copies as a code block' do
verify(
'.line[id="LC9"], .line[id="LC10"]',
<<-GFM.strip_heredoc,
```ruby
raise RuntimeError, "System commands must be given as an array of strings"
end
```
GFM
)
end
end
end
context 'from a GFM code block' do
before do
visit namespace_project_blob_path(project.namespace, project, File.join('markdown', 'doc/api/users.md'))
end
context 'selecting one word of text' do
it 'copies as inline code' do
verify(
'.line[id="LC27"] .s2',
'`"bio"`'
)
end
end
context 'selecting one line of text' do
it 'copies as inline code' do
verify(
'.line[id="LC27"]',
'`"bio": null,`'
)
end
end
context 'selecting multiple lines of text' do
it 'copies as a code block' do
verify(
'.line[id="LC27"], .line[id="LC28"]',
<<-GFM.strip_heredoc,
```json
"bio": null,
"skype": "",
```
GFM
)
end
end
end
def verify(selector, gfm)
html = html_for_selector(selector)
output_gfm = html_to_gfm(html, 'transformCodeSelection');
expect(output_gfm.strip).to eq(gfm.strip)
end
end
def html_for_selector(selector)
js = <<-JS.strip_heredoc
(function(html) {
var node = document.createElement('div');
node.innerHTML = html;
return window.gl.CopyAsGFM.nodeToGFM(node);
})("#{escape_javascript(html)}")
(function(selector) {
var els = document.querySelectorAll(selector);
var htmls = _.map(els, function(el) { return el.outerHTML; });
return htmls.join("\\n");
})("#{escape_javascript(selector)}")
JS
page.evaluate_script(js)
end
def verify(label, *gfms)
aggregate_failures(label) do
gfms.each do |gfm|
html = gfm_to_html(gfm)
output_gfm = html_to_gfm(html)
expect(output_gfm.strip).to eq(gfm.strip)
end
end
end
# Fake a `current_user` helper
def current_user
@feat.user
def html_to_gfm(html, transformer = 'transformGFMSelection')
js = <<-JS.strip_heredoc
(function(html) {
var node = document.createElement('div');
node.innerHTML = html;
var transformer = window.gl.CopyAsGFM[#{transformer.inspect}];
return window.gl.CopyAsGFM.selectionToGFM(node, transformer);
})("#{escape_javascript(html)}")
JS
page.evaluate_script(js)
end
end