2022/08/04 00:09:32 Please select a container 2022/08/04 00:09:45 Please select a container 2022/08/04 00:09:47 Please select a container 2022/08/04 00:11:24 // auto-generated // Code generated by Defyne GUI builder.

package main

import ( "fyne.io/fyne/v2" "fyne.io/fyne/v2/container" "fyne.io/fyne/v2/widget" "fyne.io/fyne/v2/app" )

type gui struct {

}

func newGUI() *gui { return &gui{} }

func (g *gui) makeUI() fyne.CanvasObject { g.5 = container.NewHBox( container.New(), widget.NewSeparator(), widget.NewSeparator())

return g.5}

2022/08/04 00:11:24 Fyne error: Failed to encode GUI code 2022/08/04 00:11:24 Cause: 22:3: expected ';', found .5 (and 1 more errors) 2022/08/04 00:11:24 At: /home/o/go/pkg/mod/github.com/fyne-io/[email protected]/internal/guibuilder/main.go:353 /tmp/fynebuilder/main.go:2:1: expected 'package', found 'func' 2022/08/04 00:11:33 // auto-generated // Code generated by Defyne GUI builder.

package main

import ( "fyne.io/fyne/v2" "fyne.io/fyne/v2/container" "fyne.io/fyne/v2/widget" "fyne.io/fyne/v2/app" )

type gui struct {

}

func newGUI() *gui { return &gui{} }

func (g *gui) makeUI() fyne.CanvasObject { g.5 = container.NewHBox( container.New(), widget.NewSeparator(), widget.NewSeparator())

return g.5}

2022/08/04 00:11:33 Fyne error: Failed to encode GUI code 2022/08/04 00:11:33 Cause: 22:3: expected ';', found .5 (and 1 more errors) 2022/08/04 00:11:33 At: /home/o/go/pkg/mod/github.com/fyne-io/[email protected]/internal/guibuilder/main.go:353 /tmp/fynebuilder/main.go:2:1: expected 'package', found 'func'

Currently, if you start defyne without specifying a directory, you get prompted to select a project to open or create a new project. Creating a new project causes a nil reference as the value of dir in createProject() is still undefined. This patch uses the home directory (via os.UserHomeDir) as a suitable default path value to avoid a crash when the user enters a project name without specifying a directory to place the new project in. Andy mentioned that there are bonus points for extending this patch by storing the last-opened project in persistent storage via App.Preferences.

❯ go get github.com/fyne-io/defyne        
go: downloading github.com/fyne-io/defyne v0.0.0-20210412103144-b07e6a0b41ed
go: downloading fyne.io/fyne/v2 v2.0.2
go: downloading fyne.io/x/fyne v0.0.0-20210407180700-b277e3225fbe
go: downloading github.com/fyne-io/terminal v0.0.0-20210410133030-a03d1d963afd
go: downloading github.com/creack/pty v1.1.11
go: downloading github.com/fyne-io/mobile v0.1.3-0.20210318200029-09e9c4e13a8f
go: downloading github.com/go-gl/glfw/v3.3/glfw v0.0.0-20210311203641-62640a716d48
# github.com/fyne-io/defyne
go/pkg/mod/github.com/fyne-io/[email protected]/defyne.go:20:15: undefined: container.DocTabs
go/pkg/mod/github.com/fyne-io/[email protected]/panels.go:18:15: undefined: container.NewDocTabs

❯ echo $?                         
2

❯ go version  
go version go1.16 linux/amd64

go version:go1.18 linux/amd64 My operation steps:

1. clean all widget
2. add Form widget
3. click save
4. then I got the bellow error: "json:unsupported type: func()"

Summary: On a newly built copy of defyne, launching defyne without specifying a directory, and without specifying a 'new project' directory causes a crash upon creating a new project. Only 'New' seems to exhibit this behavior, the 'Open' option works and opens the project successfully.

Info: go version go1.17.5 linux/amd64

Steps to recreate:

1. git clone
2. cd
3. go mod tidy
4. go build
5. ./defyne # (without the period for directory, as it bypasses the dialog)
6. click New
7. enter project name
8. proceed
9. -crash-

crash output

$ ./defyne 
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x50 pc=0x65ab02]

goroutine 24 [running]:
fyne.io/fyne/v2/storage/repository.ForURI({0x0, 0x0})
	/home/dh/go/pkg/mod/fyne.io/fyne/[email protected]/storage/repository/repository.go:255 +0x22
fyne.io/fyne/v2/storage.Child({0x0, 0x0}, {0xc000e663d0, 0x8})
	/home/dh/go/pkg/mod/fyne.io/fyne/[email protected]/storage/uri.go:111 +0x31
main.createProject({0x0, 0x0}, {0xc000e663d0, 0x8})
	/home/dh/Code/Golang/defyne/project.go:105 +0x4b
main.(*defyne).showNewProjectDialog.func2(0x80)
	/home/dh/Code/Golang/defyne/project.go:42 +0x6d
fyne.io/fyne/v2/dialog.(*dialog).hideWithResponse(0xc000136600, 0xe0)
	/home/dh/go/pkg/mod/fyne.io/fyne/[email protected]/dialog/base.go:156 +0x42
fyne.io/fyne/v2/dialog.NewForm.func1()
	/home/dh/go/pkg/mod/fyne.io/fyne/[email protected]/dialog/form.go:62 +0x25
fyne.io/fyne/v2/widget.(*Button).Tapped(0xc00014c6e0, 0xc000140201)
	/home/dh/go/pkg/mod/fyne.io/fyne/[email protected]/widget/button.go:194 +0x53
fyne.io/fyne/v2/internal/driver/glfw.(*window).mouseClickedHandleTapDoubleTap.func1()
	/home/dh/go/pkg/mod/fyne.io/fyne/[email protected]/internal/driver/glfw/window.go:891 +0x26
fyne.io/fyne/v2/internal/driver/common.(*Window).RunEventQueue(0xc000140200)
	/home/dh/go/pkg/mod/fyne.io/fyne/[email protected]/internal/driver/common/window.go:58 +0x56
created by fyne.io/fyne/v2/internal/driver/glfw.(*gLDriver).createWindow.func1
	/home/dh/go/pkg/mod/fyne.io/fyne/[email protected]/internal/driver/glfw/window.go:1395 +0x15b

Possible solution: The issue seems to happen when the user is not prevented from proceeding without defining a directory for the new project. The assumption is that the value for creating the new directory is still nil at the point which the program is attempting to create the project without a value. Deactivating or removing the button before the value for directory != nil could help keep this from happening.

Allow widgets and containers to have a name (ID) so that we can reference them in code.

This also changes the default GUI setup code so we return a struct (pointer) that will encapsulate these vars instead of using globals.

One thing that would immediately be useful would be possibility to add specific GUI-functionality via defyne that is currently missing in standard fyne - like Tooltips. Or easily add an image into a container.

(And while I am at it ... easily add an png to be used as an icon. And then be able to have the whole app be put together by creating the necessary "makefiles"... = make an Graphical UI for the whole https://developer.fyne.io/started/packaging fyne part!)

Defyne is actually usable... Great stuff !

Can you add some test projects ?

It would make it easier to experiment and also for me and others to help. Maybe a "ProjectTests" folder in the repo for now ?

I got some various widgets working and understand how the system fundamentally works. Seems to maintain a json description and then gen the golang from that json. It would be nice if a basic docs folder explained this, again so that others can help.

I am curious that is the architectural plan to add logic. For example click a button and change some text.

Feature request

Separate GUI file transpiler out from IDE.

Description

I just try out defyne and its GUI editor, it's great. But I can't find a way to make *.gui.json into a go file. Anyway, will defyne expose the transpiler (maybe just the function) or separate it into another module (function only or cli app). So that I can do something like...

w := app.New().NewWindow("Application")
w.SetContent(defyne.DecodeJSON("MainWindow.gui.json"))
w.ShowAndRun()

or

$> defyne compile
# MainWindow.gui.json --> MainWindow.gui.go

I am new to fyne but glad that someone bringing GUI to golang. Thank you for working on fyne and defyne.

Something simple that helps new-to-fyne developers to load some template apps to get them up and running. Such as...

• Some standard app UI
• Documents based app
• Basic graphical app
• Empty project

With some nice icons, descriptions and filling in the blanks so we can generate a complete project.