[V3] fix drag n drop example not running

[Etesam913]

Description

• Replaces the usage of app.customEventProcessor with app.EmitEvent.
• It seems like app.customEventProcessor does not exist

Video of the example working

Screen.Recording.2024-09-12.at.1.01.32.AM.mov

Fixes #3741

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration using wails doctor.

• Windows
• macOS
• Linux

Test Configuration

Please paste the output of wails doctor. If you are unable to run this command, please describe your environment in as much detail as possible.

# System
┌────────────────────────────┐
| Name          | MacOS      |
| Version       | 15.0       |
| ID            | 24A5331b   |
| Branding      | MacOS 15.0 |
| Platform      | darwin     |
| Architecture  | arm64      |
| Apple Silicon | true       |
| CPU           | Apple M2   |
| CPU           | Unknown    |
| GPU           | Unknown    |
| Memory        | Unknown    |
└────────────────────────────┘

# Build Environment
┌────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
| Wails CLI      | v3.0.0-alpha.6                                                                                                            |
| Go Version     | go1.23.1                                                                                                                  |
| Revision       | ef8c886b101ab13258998cbb0cfca36db5b110e4                                                                                  |
| Modified       | false                                                                                                                     |
| -buildmode     | exe                                                                                                                       |
| -compiler      | gc                                                                                                                        |
| CGO_CFLAGS     |                                                                                                                           |
| CGO_CPPFLAGS   |                                                                                                                           |
| CGO_CXXFLAGS   |                                                                                                                           |
| CGO_ENABLED    | 1                                                                                                                         |
| CGO_LDFLAGS    |                                                                                                                           |
| DefaultGODEBUG | asynctimerchan=1,gotypesalias=0,httpservecontentkeepheaders=1,tls3des=1,tlskyber=0,x509keypairleaf=0,x509negativeserial=1 |
| GOARCH         | arm64                                                                                                                     |
| GOARM64        | v8.0                                                                                                                      |
| GOOS           | darwin                                                                                                                    |
| vcs            | git                                                                                                                       |
| vcs.modified   | false                                                                                                                     |
| vcs.revision   | ef8c886b101ab13258998cbb0cfca36db5b110e4                                                                                  |
| vcs.time       | 2024-09-08T22:36:19Z                                                                                                      |
└────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘

# Dependencies
┌────────────────────────────────────────────────────────────────────────┐
| Xcode cli tools | 2409                                                 |
| npm             | 10.8.1                                               |
| *NSIS           | Not Installed. Install with `brew install makensis`. |
└─────────────────────── * - Optional Dependency ────────────────────────┘

# Diagnosis
 SUCCESS  Your system is ready for Wails development!

Checklist:

• I have updated website/src/pages/changelog.mdx with details of this PR
• My code follows the general coding style of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

Summary by CodeRabbit

• New Features

  • Improved drag-and-drop functionality with a fix for the custom event processor.

• Bug Fixes

  • Resolved a Linux compile error related to IgnoreMouseEvents.
  • Fixed syso icon file generation issue on Windows.
  • Addressed native operation issues in Wayland on Linux.

• Refactor

  • Simplified event handling logic for dropped files in the drag-and-drop example.

[coderabbitai]

Walkthrough

The pull request introduces a fix for the customEventProcessor bug in the drag-and-drop example, enhancing its functionality. It simplifies the event handling logic in the main.go file by replacing a verbose event emission structure with a more concise call to app.EmitEvent. Additionally, it addresses various platform-specific issues, including a Linux compile error and a Windows icon file generation problem, improving overall application stability across different environments.

Changes

Files	Change Summary
mkdocs-website/docs/en/changelog.md	Added a fix for customEventProcessor in the drag-and-drop example.
v3/examples/drag-n-drop/main.go	Simplified event handling logic by replacing verbose event emission with a direct call to app.EmitEvent.

Assessment against linked issues

Objective	Addressed	Explanation
Fix the customEventProcessor bug in example (#[3741])	✅
Ensure the drag-and-drop example runs without errors (#[3741])	✅

🐰 In the meadow, where bunnies play,
A fix was made, hip-hip-hooray!
The drag-and-drop now works just right,
With events that dance, oh what a sight!
Bugs are gone, stability's here,
Hopping along, we have nothing to fear! 🌼✨

---

Recent review details

Configuration used: .coderabbit.yaml
Review profile: CHILL

Commits

Files that changed from the base of the PR and between ef8c886 and ce1e2f6.

Files selected for processing (2)

• mkdocs-website/docs/en/changelog.md (1 hunks)
• v3/examples/drag-n-drop/main.go (1 hunks)

Files skipped from review due to trivial changes (1)

• v3/examples/drag-n-drop/main.go

Additional comments not posted (1)

mkdocs-website/docs/en/changelog.md (1)

29-29: LGTM!

The changelog entry accurately captures the fix for the customEventProcessor bug in the drag-n-drop example, as described in the PR objectives. It follows the proper format and provides relevant details for future reference.

---

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[leaanthony]

Thanks for this! It was a side-effect of a recent change. Appreciate you picking this up.
Please could you add an entry to the changelog located at mkdocs-website/docs/changelog.md? Thanks!

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[Etesam913]

I added an entry to the changelog.