Incorporate HTML help in the Web UI for offline access #1366

Copilot · 2025-06-04T15:20:08Z

This PR adds comprehensive offline help functionality to the EduMIPS64 Web UI, enabling documentation access without internet connection - crucial for university exams and other offline contexts.

Changes Made

Core Implementation

HelpBrowserDialog: New component providing iframe-based documentation browsing with language selection
Enhanced HelpDialog: Updated to include offline help browser alongside existing about information
Webpack configuration: Modified to bundle HTML help files as static assets

Documentation Integration

Generated HTML documentation from existing Sphinx sources for all supported languages:
- English (help/en/)
- Italian (help/it/)
- Chinese (help/zh/)
Total bundle size: ~1.1MB for complete trilingual documentation
Includes all sections: instructions, FPU, examples, user interface, and file formats

Key Features

Offline-first: All help content bundled with the web application
Multi-language support: Language selector with proper navigation between docs
Complete documentation: Same comprehensive help available in the Swing UI
Cross-platform compatibility: Works in both regular web browsers and Electron distribution

Before/After

Before: Web UI only linked to external ReadTheDocs, requiring internet connection

<Link href="https://edumips64.readthedocs.io/en/latest/">
  Read the docs
</Link>

After: Integrated help browser with offline documentation

<Button onClick={handleOpenHelpBrowser}>
  Open EduMIPS64 Documentation
</Button>

Technical Details

The implementation leverages the existing Sphinx documentation build system used for the Swing UI's JavaHelp files. HTML documentation is generated from the same RST sources and bundled via webpack's CopyPlugin.

File structure:

build/gwt/war/edumips64/help/
├── en/
│   ├── index.html
│   ├── instructions.html
│   ├── _static/
│   └── ...
├── it/
└── zh/

Testing

✅ Documentation loads correctly in all three languages
✅ Internal navigation and CSS styling work properly
✅ Compatible with existing Electron packaging
✅ Minimal bundle size impact (~1.1MB total)

Fixes #1365.

Warning

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I tried to connect to the following addresses, but was blocked by firewall rules:

http://168.63.129.16:80/machine/
- Triggering command: /usr/bin/python3 -u bin/WALinuxAgent-2.13.1.1-py3.9.egg -collect-logs (http block)

If you need me to access, download, or install something from one of these locations, you can either:

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Co-authored-by: lupino3 <[email protected]>

lupino3

src/webapp/components/HelpBrowserDialog.js

+      <DialogContent sx={{ height: '70vh', padding: 0 }}>
+        <iframe
+          ref={iframeRef}
+          src={helpUrl}


To fix the issue, we need to ensure that the selectedLanguage value is sanitized before constructing the helpUrl. This can be achieved by validating the selectedLanguage against the predefined HELP_LANGUAGES array to ensure it matches one of the allowed language codes. If the value is invalid, we can default to a safe fallback (e.g., 'en').

Steps to implement the fix:

Add a validation function to check if the selectedLanguage is one of the allowed language codes.

Use this validation function in the handleLanguageChange function and when constructing the helpUrl.

Ensure that the helpUrl is always constructed using a sanitized value.

codecov · 2025-06-04T15:49:31Z

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 52.49%. Comparing base (a6eba7d) to head (0dfc6b9).

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #1366   +/-   ##
=========================================
  Coverage     52.49%   52.49%           
  Complexity     1465     1465           
=========================================
  Files           258      258           
  Lines         10464    10464           
  Branches       1132     1132           
=========================================
  Hits           5493     5493           
  Misses         4638     4638           
  Partials        333      333

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lupino3 · 2025-06-04T18:13:02Z

@copilot I see that you added src/webapp/help. This is not correct, as it is duplicating both the .rst source of the help and even the HTML output of the compilation.

You need to dynamically include in the webapp the output of the help compilation process, not commit to git a copy of the RST sources and of the HTML output.

Co-authored-by: lupino3 <[email protected]>

Copilot · 2025-06-04T18:28:11Z

@copilot I see that you added src/webapp/help. This is not correct, as it is duplicating both the .rst source of the help and even the HTML output of the compilation.

You need to dynamically in...

Fixed in commit bdc70f4. Removed the duplicated src/webapp/help directory and updated webpack configuration to dynamically include documentation from the build output (build/docs/*/html) generated by the existing gradle htmlDocs tasks. No longer committing RST sources or HTML output to git.

Warning

Firewall rules blocked me from connecting to one or more addresses

I tried to connect to the following addresses, but was blocked by firewall rules:

http://168.63.129.16:80/machine/
- Triggering command: /usr/bin/python3 -u bin/WALinuxAgent-2.13.1.1-py3.9.egg -collect-logs (http block)

If you need me to access, download, or install something from one of these locations, you can either:

Configure Actions setup steps to set up my environment, which run before the firewall is enabled
Add the appropriate URLs or hosts to my firewall allow list

lupino3 · 2025-06-04T19:48:24Z

@copilot Please make the help readable with both dark and bright themes.

Co-authored-by: lupino3 <[email protected]>

Copilot · 2025-06-04T20:06:40Z

@copilot Please make the help readable with both dark and bright themes.

Fixed in commit f041136. Added comprehensive theme-aware styling that dynamically injects CSS into the help documentation iframe based on the current Material UI theme (dark/light). The documentation is now readable and properly styled in both themes with appropriate colors for text, backgrounds, links, code blocks, and all other elements.

Warning

Firewall rules blocked me from connecting to one or more addresses

I tried to connect to the following addresses, but was blocked by firewall rules:

esm.ubuntu.com
- Triggering command: /usr/lib/apt/methods/https (dns block)
http://168.63.129.16:80/machine/
- Triggering command: /usr/bin/python3 -u bin/WALinuxAgent-2.13.1.1-py3.9.egg -collect-logs (http block)

If you need me to access, download, or install something from one of these locations, you can either:

Configure Actions setup steps to set up my environment, which run before the firewall is enabled
Add the appropriate URLs or hosts to my firewall allow list

Co-authored-by: lupino3 <[email protected]>

…as HTML Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

lupino3 · 2025-07-16T08:47:18Z

@copilot "Build web application" failed because the help files are not available. Please add a step to build the help files before building the JS code, after building the worker.

Co-authored-by: lupino3 <[email protected]>

Copilot · 2025-07-16T08:57:14Z

@copilot "Build web application" failed because the help files are not available. Please add a step to build the help files before building the JS code, after building the worker.

Fixed in commit 9cb3e77. Added HTML documentation build step (./gradlew htmlDocsEn htmlDocsIt htmlDocsZh) to both build-web and build-electron jobs in the CI workflow, positioned after building the JS worker but before building the web application. This ensures the help files are available when webpack tries to copy them.

Initial plan for issue

28f4b9b

Copilot AI assigned Copilot and lupino3 Jun 4, 2025

Copilot started work on behalf of lupino3 June 4, 2025 15:20 View session

Copilot AI and others added 2 commits June 4, 2025 15:41

Add HTML help files and help browser component

e9a9cb4

Co-authored-by: lupino3 <[email protected]>

Improve help browser with better language switching and navigation

4295fd6

Co-authored-by: lupino3 <[email protected]>

Copilot AI changed the title ~~[WIP] Incorporate HTML help in the Web UI~~ Incorporate HTML help in the Web UI for offline access Jun 4, 2025

Copilot AI requested a review from lupino3 June 4, 2025 15:45

Copilot finished work on behalf of lupino3 June 4, 2025 15:45

github-advanced-security bot found potential problems Jun 4, 2025

View reviewed changes

Copilot AI had a problem deploying to Staging June 4, 2025 15:50 Failure

Copilot AI temporarily deployed to Staging June 4, 2025 15:50 Inactive

Copilot started work on behalf of lupino3 June 4, 2025 18:13 View session

Remove duplicated help files and configure webpack to use build output

bdc70f4

Co-authored-by: lupino3 <[email protected]>

Copilot finished work on behalf of lupino3 June 4, 2025 18:28

Copilot started work on behalf of lupino3 June 4, 2025 19:48 View session

Add theme-aware styling for help documentation

f041136

Co-authored-by: lupino3 <[email protected]>

Add test-results to gitignore for Playwright tests

a3bc52f

Co-authored-by: lupino3 <[email protected]>

Copilot finished work on behalf of lupino3 June 4, 2025 20:08

Copilot AI temporarily deployed to Staging June 4, 2025 21:29 Inactive

lupino3 and others added 2 commits July 16, 2025 10:22

Potential fix for code scanning alert no. 19: DOM text reinterpreted …

725ea71

…as HTML Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Merge branch 'master' into copilot/fix-1365

86713d7

lupino3 marked this pull request as ready for review July 16, 2025 08:22

lupino3 deployed to Staging July 16, 2025 08:25 — with GitHub Actions View deployment

Issue an error if the help is not built

c70f566

Copilot started work on behalf of lupino3 July 16, 2025 08:47 View session

Add HTML documentation build step to CI workflow

9cb3e77

Co-authored-by: lupino3 <[email protected]>

Copilot finished work on behalf of lupino3 July 16, 2025 08:57

lupino3 added 2 commits July 29, 2025 10:00

Merge branch 'master' into copilot/fix-1365

4cbce95

Build docs in a separate CI job

0dfc6b9

@@ -23,7 +23,10 @@
+              const isValidLanguage = (lang) => HELP_LANGUAGES.some((language) => language.code === lang);
               const handleLanguageChange = (event) => {
-                setSelectedLanguage(event.target.value);
+                const newLanguage = isValidLanguage(event.target.value) ? event.target.value : 'en';
+                setSelectedLanguage(newLanguage);
                 // Navigate to index page when language changes
                 if (iframeRef.current) {
-                  iframeRef.current.src = `help/${event.target.value}/index.html`;
+                  iframeRef.current.src = `help/${newLanguage}/index.html`;
                 }
@@ -203,3 +206,3 @@
-              const helpUrl = `help/${selectedLanguage}/index.html`;
+              const helpUrl = `help/${isValidLanguage(selectedLanguage) ? selectedLanguage : 'en'}/index.html`;

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Changes Made

Core Implementation

Documentation Integration

Key Features

Before/After

Technical Details

Testing

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