[v2] Files DragAndDrop bugs

[Vovan-VE]

Description

1. When only EnableFileDrop: true, every time D'n'D happens an OnDomReady is triggered.

   INF | drop files: []string{"/abs/path/file.txt"}
   WTF?
   main.(*App).onFileDrop
       .../app.go:125
   github.com/wailsapp/wails/v2/pkg/runtime.OnFileDrop.func1
       github.com/wailsapp/wails/v2@v2.9.1/pkg/runtime/draganddrop.go:30
   runtime.goexit
       $GOROOT/src/runtime/asm_amd64.s:1598
   INF | DOM READY -------------------------------
   WTF?
   main.(*App).domReady
       .../app.go:104
   github.com/wailsapp/wails/v2/internal/frontend/desktop/linux.(*Frontend).processMessage
       github.com/wailsapp/wails/v2@v2.9.1/internal/frontend/desktop/linux/frontend.go:411
   github.com/wailsapp/wails/v2/internal/frontend/desktop/linux.(*Frontend).startMessageProcessor
       github.com/wailsapp/wails/v2@v2.9.1/internal/frontend/desktop/linux/frontend.go:215
   runtime.goexit
       $GOROOT/src/runtime/asm_amd64.s:1598

2. When EnableFileDrop: true, DisableWebViewDrop: true, D'n'D don't work for files ever. Not sure how this option should be used. I hoped it should prevent p.1 above to happen. (enhance usage documentation)

To Reproduce

import "github.com/pkg/errors"

func (a *App) domReady(ctx context.Context) {
    runtime.OnFileDropOff(ctx)
    runtime.LogInfof(ctx, "DOM READY -------------------------------\n%+v", errors.New("WTF?"))
    runtime.OnFileDrop(ctx, a.onFileDrop)
}

func (a *App) onFileDrop(x, y int, paths []string) {
    runtime.LogInfof(a.ctx, "drop files: %#v\n%+v", paths, errors.New("WTF?"))
}

Expected behaviour

1. No extra OnDomReady triggering
2. Better documentation how these options works at they own and together.

Screenshots

No response

Attempted Fixes

No response

System Details

# Wails

Version         | v2.9.1
Package Manager | apt   

(v2.9.2 as well - UPD 2024-10-05)

System

┌──────────────────────────────────────────────────────────────────────────────────┐
| OS           | Ubuntu                                                            |
| Version      | 22.04                                                             |
| ID           | ubuntu                                                            |
| Go Version   | go1.20.5                                                          |
| Platform     | linux                                                             |
| Architecture | amd64                                                             |
| CPU          | AMD Ryzen 9 7950X 16-Core Processor                               |
| GPU          | unknown (Advanced Micro Devices, Inc. [AMD/ATI]) - Driver: amdgpu |
| Memory       | 59GB                                                              |
└──────────────────────────────────────────────────────────────────────────────────┘

Dependencies

┌──────────────────────────────────────────────────────────────────────────┐
| Dependency | Package Name          | Status    | Version                 |
| *docker    | docker.io             | Available | 24.0.7-0ubuntu2~22.04.1 |
| gcc        | build-essential       | Installed | 12.9ubuntu3             |
| libgtk-3   | libgtk-3-dev          | Installed | 3.24.33-1ubuntu2.1      |
| libwebkit  | libwebkit2gtk-4.0-dev | Installed | 2.44.2-0ubuntu0.22.04.1 |
| npm        | npm                   | Installed | 10.2.4                  |
| *nsis      | nsis                  | Installed | v3.08-2                 |
| pkg-config | pkg-config            | Installed | 0.29.2                  |
└──────────────────────── * - Optional Dependency ─────────────────────────┘

Additional context

No response

[pavelbinar]

Hi @Vovan-VE Plese take a look on this example project showing how to implement this feature: https://github.com/beam-transfer/wails-drag-and-drop/blob/main/README.md#demo

The documentation would benefit from more details for sure.

If you get it working you are in the great position to write an docs for that feature since you just learned what you did not know before. Please please consider submitting PR.

[Vovan-VE]

@pavelbinar , the demo works in the same way as described above.

I'll move a code away from DomReady to Startup and so ban DomReady for awhile.

[Vovan-VE]

Finally I checked Windows. Drop don't work on Windows 10 at all. Drag works. Drop doesn't.

[shtrih]

I have similar issues on Windows 11. I tested it on wails-drag-n-drop.

❌If wails dev is used, no drop events are fired on the go side, but js events are emitted. ✅If wails build -debug is used, then both js and go events are emitted.

Modified code:

// app.go

func (a *App) startup(ctx context.Context) {
    a.ctx = ctx
    runtime.OnFileDrop(ctx, a.onFileDrop)
}

func (a *App) onFileDrop(x, y int, paths []string) {
    runtime.LogInfof(a.ctx, "drop files: %#v\n", paths)
}

System Details

# Wails
Version | v2.9.1

# System
┌────────────────────────────────────────────────────────────────────────┐
| OS           | Windows 10 Pro                                          |
| Version      | 2009 (Build: 22631)                                     |
| ID           | 23H2                                                    |
| Go Version   | go1.19.2                                                |
| Platform     | windows                                                 |
| Architecture | amd64                                                   |
| CPU          | 11th Gen Intel(R) Core(TM) i7-11700K @ 3.60GHz          |
| GPU          | NVIDIA GeForce RTX 4090 (NVIDIA) - Driver: 31.0.15.5161 |
| Memory       | 64GB                                                    |
└────────────────────────────────────────────────────────────────────────┘

# Dependencies
┌────────────────────────────────────────────────────────┐
| Dependency | Package Name | Status    | Version        |
| WebView2   | N/A          | Installed | 126.0.2592.113 |
| Nodejs     | N/A          | Installed | 18.18.0        |
| npm        | N/A          | Installed | 10.5.0         |
| *upx       | N/A          | Available |                |
| *nsis      | N/A          | Available |                |
└─────────────── * - Optional Dependency ────────────────┘

---

PS C:\Users\crab> systeminfo

OS Name:                   Microsoft Windows 11 Pro
OS Version:                10.0.22631 N/A Build 22631

[Vovan-VE]

Checked in v2.9.2 just now. Both subissues are actual still.

[leaanthony]

We'll look at this as a priority