Move go-common-file-dialog into project. Fix Title bug.

v2/cmd/wails/internal/commands/generate/template/base/go.sum

@@ -53,8 +53,6 @@ github.com/leaanthony/debme v1.2.1 h1:9Tgwf+kjcrbMQ4WnPcEIUcQuIZYqdWftzZkBr+i/oO
 github.com/leaanthony/debme v1.2.1/go.mod h1:3V+sCm5tYAgQymvSOfYQ5Xx2JCr+OXiD9Jkw3otUjiA=
 github.com/leaanthony/go-ansi-parser v1.0.1 h1:97v6c5kYppVsbScf4r/VZdXyQ21KQIfeQOk2DgKxGG4=
 github.com/leaanthony/go-ansi-parser v1.0.1/go.mod h1:7arTzgVI47srICYhvgUV4CGd063sGEeoSlych5yeSPM=
-github.com/leaanthony/go-common-file-dialog v1.0.3 h1:O0uGjKnWtdEADGrkg+TyAAbZylykMwwx/MNEXn9fp+Y=
-github.com/leaanthony/go-common-file-dialog v1.0.3/go.mod h1:TGhEc9eSJgRsupZ+iH1ZgAOnEo9zp05cRH2j08RPrF0=
 github.com/leaanthony/gosod v1.0.3 h1:Fnt+/B6NjQOVuCWOKYRREZnjGyvg+mEhd1nkkA04aTQ=
 github.com/leaanthony/gosod v1.0.3/go.mod h1:BJ2J+oHsQIyIQpnLPjnqFGTMnOZXDbvWtRCSG7jGxs4=
 github.com/leaanthony/idgen v1.0.0/go.mod h1:4nBZnt8ml/f/ic/EVQuLxuj817RccT2fyrUaZFxrcVA=

v2/cmd/wails/internal/commands/generate/template/base/go.tmpl.mod

@@ -12,7 +12,6 @@ module changeme
         github.com/labstack/echo/v4 v4.7.2 // indirect
         github.com/labstack/gommon v0.3.1 // indirect
         github.com/leaanthony/go-ansi-parser v1.0.1 // indirect
-        github.com/leaanthony/go-common-file-dialog v1.0.3 // indirect
         github.com/leaanthony/gosod v1.0.3 // indirect
         github.com/leaanthony/slicer v1.5.0 // indirect
         github.com/leaanthony/typescriptify-golang-structs v0.1.7 // indirect

v2/cmd/wails/internal/commands/initialise/templates/generate/plain/go.mod.tmpl

@@ -18,7 +18,6 @@ github.com/jchv/go-winloader v0.0.0-20200815041850-dec1ee9a7fd5 // indirect
 github.com/klauspost/compress v1.12.2 // indirect
 github.com/leaanthony/debme v1.2.1 // indirect
 github.com/leaanthony/go-ansi-parser v1.0.1 // indirect
-github.com/leaanthony/go-common-file-dialog v1.0.3 // indirect
 github.com/leaanthony/slicer v1.5.0 // indirect
 github.com/leaanthony/typescriptify-golang-structs v0.1.7 // indirect
 github.com/pkg/browser v0.0.0-20210706143420-7d21f8c997e2 // indirect

v2/cmd/wails/internal/commands/initialise/templates/generate/plain/go.sum

@@ -81,8 +81,6 @@ github.com/leaanthony/debme v1.2.1 h1:9Tgwf+kjcrbMQ4WnPcEIUcQuIZYqdWftzZkBr+i/oO
 github.com/leaanthony/debme v1.2.1/go.mod h1:3V+sCm5tYAgQymvSOfYQ5Xx2JCr+OXiD9Jkw3otUjiA=
 github.com/leaanthony/go-ansi-parser v1.0.1 h1:97v6c5kYppVsbScf4r/VZdXyQ21KQIfeQOk2DgKxGG4=
 github.com/leaanthony/go-ansi-parser v1.0.1/go.mod h1:7arTzgVI47srICYhvgUV4CGd063sGEeoSlych5yeSPM=
-github.com/leaanthony/go-common-file-dialog v1.0.3 h1:O0uGjKnWtdEADGrkg+TyAAbZylykMwwx/MNEXn9fp+Y=
-github.com/leaanthony/go-common-file-dialog v1.0.3/go.mod h1:TGhEc9eSJgRsupZ+iH1ZgAOnEo9zp05cRH2j08RPrF0=
 github.com/leaanthony/gosod v1.0.3/go.mod h1:BJ2J+oHsQIyIQpnLPjnqFGTMnOZXDbvWtRCSG7jGxs4=
 github.com/leaanthony/idgen v1.0.0/go.mod h1:4nBZnt8ml/f/ic/EVQuLxuj817RccT2fyrUaZFxrcVA=
 github.com/leaanthony/slicer v1.5.0 h1:aHYTN8xbCCLxJmkNKiLB6tgcMARl4eWmH9/F+S/0HtY=

v2/cmd/wails/internal/commands/initialise/templates/templates/plain/go.mod.tmpl

@@ -18,7 +18,6 @@ github.com/jchv/go-winloader v0.0.0-20200815041850-dec1ee9a7fd5 // indirect
 github.com/klauspost/compress v1.12.2 // indirect
 github.com/leaanthony/debme v1.2.1 // indirect
 github.com/leaanthony/go-ansi-parser v1.0.1 // indirect
-github.com/leaanthony/go-common-file-dialog v1.0.3 // indirect
 github.com/leaanthony/slicer v1.5.0 // indirect
 github.com/leaanthony/typescriptify-golang-structs v0.1.7 // indirect
 github.com/pkg/browser v0.0.0-20210706143420-7d21f8c997e2 // indirect

v2/cmd/wails/internal/commands/initialise/templates/templates/plain/go.sum

@@ -81,8 +81,6 @@ github.com/leaanthony/debme v1.2.1 h1:9Tgwf+kjcrbMQ4WnPcEIUcQuIZYqdWftzZkBr+i/oO
 github.com/leaanthony/debme v1.2.1/go.mod h1:3V+sCm5tYAgQymvSOfYQ5Xx2JCr+OXiD9Jkw3otUjiA=
 github.com/leaanthony/go-ansi-parser v1.0.1 h1:97v6c5kYppVsbScf4r/VZdXyQ21KQIfeQOk2DgKxGG4=
 github.com/leaanthony/go-ansi-parser v1.0.1/go.mod h1:7arTzgVI47srICYhvgUV4CGd063sGEeoSlych5yeSPM=
-github.com/leaanthony/go-common-file-dialog v1.0.3 h1:O0uGjKnWtdEADGrkg+TyAAbZylykMwwx/MNEXn9fp+Y=
-github.com/leaanthony/go-common-file-dialog v1.0.3/go.mod h1:TGhEc9eSJgRsupZ+iH1ZgAOnEo9zp05cRH2j08RPrF0=
 github.com/leaanthony/gosod v1.0.3/go.mod h1:BJ2J+oHsQIyIQpnLPjnqFGTMnOZXDbvWtRCSG7jGxs4=
 github.com/leaanthony/idgen v1.0.0/go.mod h1:4nBZnt8ml/f/ic/EVQuLxuj817RccT2fyrUaZFxrcVA=
 github.com/leaanthony/slicer v1.5.0 h1:aHYTN8xbCCLxJmkNKiLB6tgcMARl4eWmH9/F+S/0HtY=

v2/go.mod

@@ -17,7 +17,6 @@ require (
 	github.com/leaanthony/clir v1.0.4
 	github.com/leaanthony/debme v1.2.1
 	github.com/leaanthony/go-ansi-parser v1.0.1
-	github.com/leaanthony/go-common-file-dialog v1.0.3
 	github.com/leaanthony/gosod v1.0.3
 	github.com/leaanthony/idgen v1.0.0
 	github.com/leaanthony/slicer v1.5.0

v2/go.sum

@@ -79,8 +79,6 @@ github.com/leaanthony/debme v1.2.1 h1:9Tgwf+kjcrbMQ4WnPcEIUcQuIZYqdWftzZkBr+i/oO
 github.com/leaanthony/debme v1.2.1/go.mod h1:3V+sCm5tYAgQymvSOfYQ5Xx2JCr+OXiD9Jkw3otUjiA=
 github.com/leaanthony/go-ansi-parser v1.0.1 h1:97v6c5kYppVsbScf4r/VZdXyQ21KQIfeQOk2DgKxGG4=
 github.com/leaanthony/go-ansi-parser v1.0.1/go.mod h1:7arTzgVI47srICYhvgUV4CGd063sGEeoSlych5yeSPM=
-github.com/leaanthony/go-common-file-dialog v1.0.3 h1:O0uGjKnWtdEADGrkg+TyAAbZylykMwwx/MNEXn9fp+Y=
-github.com/leaanthony/go-common-file-dialog v1.0.3/go.mod h1:TGhEc9eSJgRsupZ+iH1ZgAOnEo9zp05cRH2j08RPrF0=
 github.com/leaanthony/gosod v1.0.3 h1:Fnt+/B6NjQOVuCWOKYRREZnjGyvg+mEhd1nkkA04aTQ=
 github.com/leaanthony/gosod v1.0.3/go.mod h1:BJ2J+oHsQIyIQpnLPjnqFGTMnOZXDbvWtRCSG7jGxs4=
 github.com/leaanthony/idgen v1.0.0 h1:IZreR+JGEzFV4yeVuBZA25gM0keUoFy+RDUldncQ+Jw=

v2/internal/ffenestri/ffenestri_client_windows.go

@@ -14,7 +14,7 @@ import (
 	"strconv"
 	"syscall"
 
-	"github.com/leaanthony/go-common-file-dialog/cfd"
+	"github.com/wailsapp/wails/v2/internal/go-common-file-dialog/cfd"
 	"github.com/wailsapp/wails/v2/pkg/runtime"
 	"golang.org/x/sys/windows"
 

v2/internal/frontend/desktop/windows/dialog.go

@@ -4,8 +4,8 @@
 package windows
 
 import (
-	"github.com/leaanthony/go-common-file-dialog/cfd"
 	"github.com/wailsapp/wails/v2/internal/frontend"
+	"github.com/wailsapp/wails/v2/internal/go-common-file-dialog/cfd"
 	"golang.org/x/sys/windows"
 	"syscall"
 )

v2/internal/go-common-file-dialog/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 Harry Phillips
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

v2/internal/go-common-file-dialog/README.md

@@ -0,0 +1,31 @@
+# Common File Dialog bindings for Golang
+
+[Project Home](https://github.com/harry1453/go-common-file-dialog)
+
+This library contains bindings for Windows Vista and
+newer's [Common File Dialogs](https://docs.microsoft.com/en-us/windows/win32/shell/common-file-dialog), which is the
+standard system dialog for selecting files or folders to open or save.
+
+The Common File Dialogs have to be accessed via
+the [COM Interface](https://en.wikipedia.org/wiki/Component_Object_Model), normally via C++ or via bindings (like in C#)
+.
+
+This library contains bindings for Golang. **It does not require CGO**, and contains empty stubs for non-windows
+platforms (so is safe to compile and run on platforms other than windows, but will just return errors at runtime).
+
+This can be very useful if you want to quickly get a file selector in your Golang application. The `cfdutil` package
+contains utility functions with a single call to open and configure a dialog, and then get the result from it. Examples
+for this are in [`_examples/usingutil`](_examples/usingutil). Or, if you want finer control over the dialog's operation,
+you can use the base package. Examples for this are in [`_examples/notusingutil`](_examples/notusingutil).
+
+This library is available under the MIT license.
+
+Currently supported features:
+
+* Open File Dialog (to open a single file)
+* Open Multiple Files Dialog (to open multiple files)
+* Open Folder Dialog
+* Save File Dialog
+* Dialog "roles" to allow Windows to remember different "last locations" for different types of dialog
+* Set dialog Title, Default Folder and Initial Folder
+* Set dialog File Filters

v2/internal/go-common-file-dialog/cfd/CommonFileDialog.go

@@ -0,0 +1,72 @@
+// Cross-platform.
+
+// Common File Dialogs
+package cfd
+
+type Dialog interface {
+	// Show the dialog to the user.
+	// Blocks until the user has closed the dialog.
+	Show() error
+	// Sets the dialog's parent window. Use 0 to set the dialog to have no parent window.
+	SetParentWindowHandle(hwnd uintptr)
+	// Show the dialog to the user.
+	// Blocks until the user has closed the dialog and returns their selection.
+	// Returns an error if the user cancelled the dialog.
+	// Do not use for the Open Multiple Files dialog. Use ShowAndGetResults instead.
+	ShowAndGetResult() (string, error)
+	// Sets the title of the dialog window.
+	SetTitle(title string) error
+	// Sets the "role" of the dialog. This is used to derive the dialog's GUID, which the
+	// OS will use to differentiate it from dialogs that are intended for other purposes.
+	// This means that, for example, a dialog with role "Import" will have a different
+	// previous location that it will open to than a dialog with role "Open". Can be any string.
+	SetRole(role string) error
+	// Sets the folder used as a default if there is not a recently used folder value available
+	SetDefaultFolder(defaultFolder string) error
+	// Sets the folder that the dialog always opens to.
+	// If this is set, it will override the "default folder" behaviour and the dialog will always open to this folder.
+	SetFolder(folder string) error
+	// Gets the selected file or folder path, as an absolute path eg. "C:\Folder\file.txt"
+	// Do not use for the Open Multiple Files dialog. Use GetResults instead.
+	GetResult() (string, error)
+	// Sets the file name, I.E. the contents of the file name text box.
+	// For Select Folder Dialog, sets folder name.
+	SetFileName(fileName string) error
+	// Release the resources allocated to this Dialog.
+	// Should be called when the dialog is finished with.
+	Release() error
+}
+
+type FileDialog interface {
+	Dialog
+	// Set the list of file filters that the user can select.
+	SetFileFilters(fileFilter []FileFilter) error
+	// Set the selected item from the list of file filters (set using SetFileFilters) by its index. Defaults to 0 (the first item in the list) if not called.
+	SetSelectedFileFilterIndex(index uint) error
+	// Sets the default extension applied when a user does not provide one as part of the file name.
+	// If the user selects a different file filter, the default extension will be automatically updated to match the new file filter.
+	// For Open / Open Multiple File Dialog, this only has an effect when the user specifies a file name with no extension and a file with the default extension exists.
+	// For Save File Dialog, this extension will be used whenever a user does not specify an extension.
+	SetDefaultExtension(defaultExtension string) error
+}
+
+type OpenFileDialog interface {
+	FileDialog
+}
+
+type OpenMultipleFilesDialog interface {
+	FileDialog
+	// Show the dialog to the user.
+	// Blocks until the user has closed the dialog and returns the selected files.
+	ShowAndGetResults() ([]string, error)
+	// Gets the selected file paths, as absolute paths eg. "C:\Folder\file.txt"
+	GetResults() ([]string, error)
+}
+
+type SelectFolderDialog interface {
+	Dialog
+}
+
+type SaveFileDialog interface { // TODO Properties
+	FileDialog
+}

v2/internal/go-common-file-dialog/cfd/CommonFileDialog_nonWindows.go

@@ -0,0 +1,28 @@
+//go:build !windows
+// +build !windows
+
+package cfd
+
+import "fmt"
+
+var unsupportedError = fmt.Errorf("common file dialogs are only available on windows")
+
+// TODO doc
+func NewOpenFileDialog(config DialogConfig) (OpenFileDialog, error) {
+	return nil, unsupportedError
+}
+
+// TODO doc
+func NewOpenMultipleFilesDialog(config DialogConfig) (OpenMultipleFilesDialog, error) {
+	return nil, unsupportedError
+}
+
+// TODO doc
+func NewSelectFolderDialog(config DialogConfig) (SelectFolderDialog, error) {
+	return nil, unsupportedError
+}
+
+// TODO doc
+func NewSaveFileDialog(config DialogConfig) (SaveFileDialog, error) {
+	return nil, unsupportedError
+}

v2/internal/go-common-file-dialog/cfd/CommonFileDialog_windows.go

@@ -0,0 +1,79 @@
+//go:build windows
+// +build windows
+
+package cfd
+
+import "github.com/go-ole/go-ole"
+
+func initialize() {
+	// Swallow error
+	_ = ole.CoInitializeEx(0, ole.COINIT_APARTMENTTHREADED|ole.COINIT_DISABLE_OLE1DDE)
+}
+
+// TODO doc
+func NewOpenFileDialog(config DialogConfig) (OpenFileDialog, error) {
+	initialize()
+
+	openDialog, err := newIFileOpenDialog()
+	if err != nil {
+		return nil, err
+	}
+	err = config.apply(openDialog)
+	if err != nil {
+		return nil, err
+	}
+	return openDialog, nil
+}
+
+// TODO doc
+func NewOpenMultipleFilesDialog(config DialogConfig) (OpenMultipleFilesDialog, error) {
+	initialize()
+
+	openDialog, err := newIFileOpenDialog()
+	if err != nil {
+		return nil, err
+	}
+	err = config.apply(openDialog)
+	if err != nil {
+		return nil, err
+	}
+	err = openDialog.setIsMultiselect(true)
+	if err != nil {
+		return nil, err
+	}
+	return openDialog, nil
+}
+
+// TODO doc
+func NewSelectFolderDialog(config DialogConfig) (SelectFolderDialog, error) {
+	initialize()
+
+	openDialog, err := newIFileOpenDialog()
+	if err != nil {
+		return nil, err
+	}
+	err = config.apply(openDialog)
+	if err != nil {
+		return nil, err
+	}
+	err = openDialog.setPickFolders(true)
+	if err != nil {
+		return nil, err
+	}
+	return openDialog, nil
+}
+
+// TODO doc
+func NewSaveFileDialog(config DialogConfig) (SaveFileDialog, error) {
+	initialize()
+
+	saveDialog, err := newIFileSaveDialog()
+	if err != nil {
+		return nil, err
+	}
+	err = config.apply(saveDialog)
+	if err != nil {
+		return nil, err
+	}
+	return saveDialog, nil
+}

v2/internal/go-common-file-dialog/cfd/DialogConfig.go

@@ -0,0 +1,120 @@
+// Cross-platform.
+
+package cfd
+
+type FileFilter struct {
+	// The display name of the filter (That is shown to the user)
+	DisplayName string
+	// The filter pattern. Eg. "*.txt;*.png" to select all txt and png files, "*.*" to select any files, etc.
+	Pattern string
+}
+
+type DialogConfig struct {
+	// The title of the dialog
+	Title string
+	// The role of the dialog. This is used to derive the dialog's GUID, which the
+	// OS will use to differentiate it from dialogs that are intended for other purposes.
+	// This means that, for example, a dialog with role "Import" will have a different
+	// previous location that it will open to than a dialog with role "Open". Can be any string.
+	Role string
+	// The default folder - the folder that is used the first time the user opens it
+	// (after the first time their last used location is used).
+	DefaultFolder string
+	// The initial folder - the folder that the dialog always opens to if not empty.
+	// If this is not empty, it will override the "default folder" behaviour and
+	// the dialog will always open to this folder.
+	Folder string
+	// The file filters that restrict which types of files the dialog is able to choose.
+	// Ignored by Select Folder Dialog.
+	FileFilters []FileFilter
+	// Sets the initially selected file filter. This is an index of FileFilters.
+	// Ignored by Select Folder Dialog.
+	SelectedFileFilterIndex uint
+	// The initial name of the file (I.E. the text in the file name text box) when the user opens the dialog.
+	// For the Select Folder Dialog, this sets the initial folder name.
+	FileName string
+	// The default extension applied when a user does not provide one as part of the file name.
+	// If the user selects a different file filter, the default extension will be automatically updated to match the new file filter.
+	// For Open / Open Multiple File Dialog, this only has an effect when the user specifies a file name with no extension and a file with the default extension exists.
+	// For Save File Dialog, this extension will be used whenever a user does not specify an extension.
+	// Ignored by Select Folder Dialog.
+	DefaultExtension string
+	// ParentWindowHandle is the handle (HWND) to the parent window of the dialog.
+	// If left as 0 / nil, the dialog will have no parent window.
+	ParentWindowHandle uintptr
+}
+
+var defaultFilters = []FileFilter{
+	{
+		DisplayName: "All Files (*.*)",
+		Pattern:     "*.*",
+	},
+}
+
+func (config *DialogConfig) apply(dialog Dialog) (err error) {
+	if config.Title != "" {
+		err = dialog.SetTitle(config.Title)
+		if err != nil {
+			return
+		}
+	}
+
+	if config.Role != "" {
+		err = dialog.SetRole(config.Role)
+		if err != nil {
+			return
+		}
+	}
+
+	if config.Folder != "" {
+		err = dialog.SetFolder(config.Folder)
+		if err != nil {
+			return
+		}
+	}
+
+	if config.DefaultFolder != "" {
+		err = dialog.SetDefaultFolder(config.DefaultFolder)
+		if err != nil {
+			return
+		}
+	}
+
+	if config.FileName != "" {
+		err = dialog.SetFileName(config.FileName)
+		if err != nil {
+			return
+		}
+	}
+
+	dialog.SetParentWindowHandle(config.ParentWindowHandle)
+
+	if dialog, ok := dialog.(FileDialog); ok {
+		var fileFilters []FileFilter
+		if config.FileFilters != nil && len(config.FileFilters) > 0 {
+			fileFilters = config.FileFilters
+		} else {
+			fileFilters = defaultFilters
+		}
+		err = dialog.SetFileFilters(fileFilters)
+		if err != nil {
+			return
+		}
+
+		if config.SelectedFileFilterIndex != 0 {
+			err = dialog.SetSelectedFileFilterIndex(config.SelectedFileFilterIndex)
+			if err != nil {
+				return
+			}
+		}
+
+		if config.DefaultExtension != "" {
+			err = dialog.SetDefaultExtension(config.DefaultExtension)
+			if err != nil {
+				return
+			}
+		}
+	}
+
+	return
+}

v2/internal/go-common-file-dialog/cfd/errors.go

@@ -0,0 +1,7 @@
+package cfd
+
+import "errors"
+
+var (
+	ErrorCancelled = errors.New("cancelled by user")
+)

v2/internal/go-common-file-dialog/cfd/iFileOpenDialog.go

@@ -0,0 +1,197 @@
+//go:build windows
+// +build windows
+
+package cfd
+
+import (
+	"github.com/go-ole/go-ole"
+	"github.com/wailsapp/wails/v2/internal/go-common-file-dialog/util"
+	"syscall"
+	"unsafe"
+)
+
+var (
+	fileOpenDialogCLSID = ole.NewGUID("{DC1C5A9C-E88A-4dde-A5A1-60F82A20AEF7}")
+	fileOpenDialogIID   = ole.NewGUID("{d57c7288-d4ad-4768-be02-9d969532d960}")
+)
+
+type iFileOpenDialog struct {
+	vtbl               *iFileOpenDialogVtbl
+	parentWindowHandle uintptr
+}
+
+type iFileOpenDialogVtbl struct {
+	iFileDialogVtbl
+
+	GetResults       uintptr // func (ppenum **IShellItemArray) HRESULT
+	GetSelectedItems uintptr
+}
+
+func newIFileOpenDialog() (*iFileOpenDialog, error) {
+	if unknown, err := ole.CreateInstance(fileOpenDialogCLSID, fileOpenDialogIID); err == nil {
+		return (*iFileOpenDialog)(unsafe.Pointer(unknown)), nil
+	} else {
+		return nil, err
+	}
+}
+
+func (fileOpenDialog *iFileOpenDialog) Show() error {
+	return fileOpenDialog.vtbl.show(unsafe.Pointer(fileOpenDialog), fileOpenDialog.parentWindowHandle)
+}
+
+func (fileOpenDialog *iFileOpenDialog) SetParentWindowHandle(hwnd uintptr) {
+	fileOpenDialog.parentWindowHandle = hwnd
+}
+
+func (fileOpenDialog *iFileOpenDialog) ShowAndGetResult() (string, error) {
+	isMultiselect, err := fileOpenDialog.isMultiselect()
+	if err != nil {
+		return "", err
+	}
+	if isMultiselect {
+		// We should panic as this error is caused by the developer using the library
+		panic("use ShowAndGetResults for open multiple files dialog")
+	}
+	if err := fileOpenDialog.Show(); err != nil {
+		return "", err
+	}
+	return fileOpenDialog.GetResult()
+}
+
+func (fileOpenDialog *iFileOpenDialog) ShowAndGetResults() ([]string, error) {
+	isMultiselect, err := fileOpenDialog.isMultiselect()
+	if err != nil {
+		return nil, err
+	}
+	if !isMultiselect {
+		// We should panic as this error is caused by the developer using the library
+		panic("use ShowAndGetResult for open single file dialog")
+	}
+	if err := fileOpenDialog.Show(); err != nil {
+		return nil, err
+	}
+	return fileOpenDialog.GetResults()
+}
+
+func (fileOpenDialog *iFileOpenDialog) SetTitle(title string) error {
+	return fileOpenDialog.vtbl.setTitle(unsafe.Pointer(fileOpenDialog), title)
+}
+
+func (fileOpenDialog *iFileOpenDialog) GetResult() (string, error) {
+	isMultiselect, err := fileOpenDialog.isMultiselect()
+	if err != nil {
+		return "", err
+	}
+	if isMultiselect {
+		// We should panic as this error is caused by the developer using the library
+		panic("use GetResults for open multiple files dialog")
+	}
+	return fileOpenDialog.vtbl.getResultString(unsafe.Pointer(fileOpenDialog))
+}
+
+func (fileOpenDialog *iFileOpenDialog) Release() error {
+	return fileOpenDialog.vtbl.release(unsafe.Pointer(fileOpenDialog))
+}
+
+func (fileOpenDialog *iFileOpenDialog) SetDefaultFolder(defaultFolderPath string) error {
+	return fileOpenDialog.vtbl.setDefaultFolder(unsafe.Pointer(fileOpenDialog), defaultFolderPath)
+}
+
+func (fileOpenDialog *iFileOpenDialog) SetFolder(defaultFolderPath string) error {
+	return fileOpenDialog.vtbl.setFolder(unsafe.Pointer(fileOpenDialog), defaultFolderPath)
+}
+
+func (fileOpenDialog *iFileOpenDialog) SetFileFilters(filter []FileFilter) error {
+	return fileOpenDialog.vtbl.setFileTypes(unsafe.Pointer(fileOpenDialog), filter)
+}
+
+func (fileOpenDialog *iFileOpenDialog) SetRole(role string) error {
+	return fileOpenDialog.vtbl.setClientGuid(unsafe.Pointer(fileOpenDialog), util.StringToUUID(role))
+}
+
+// This should only be callable when the user asks for a multi select because
+// otherwise they will be given the Dialog interface which does not expose this function.
+func (fileOpenDialog *iFileOpenDialog) GetResults() ([]string, error) {
+	isMultiselect, err := fileOpenDialog.isMultiselect()
+	if err != nil {
+		return nil, err
+	}
+	if !isMultiselect {
+		// We should panic as this error is caused by the developer using the library
+		panic("use GetResult for open single file dialog")
+	}
+	return fileOpenDialog.vtbl.getResultsStrings(unsafe.Pointer(fileOpenDialog))
+}
+
+func (fileOpenDialog *iFileOpenDialog) SetDefaultExtension(defaultExtension string) error {
+	return fileOpenDialog.vtbl.setDefaultExtension(unsafe.Pointer(fileOpenDialog), defaultExtension)
+}
+
+func (fileOpenDialog *iFileOpenDialog) SetFileName(initialFileName string) error {
+	return fileOpenDialog.vtbl.setFileName(unsafe.Pointer(fileOpenDialog), initialFileName)
+}
+
+func (fileOpenDialog *iFileOpenDialog) SetSelectedFileFilterIndex(index uint) error {
+	return fileOpenDialog.vtbl.setSelectedFileFilterIndex(unsafe.Pointer(fileOpenDialog), index)
+}
+
+func (fileOpenDialog *iFileOpenDialog) setPickFolders(pickFolders bool) error {
+	const FosPickfolders = 0x20
+	if pickFolders {
+		return fileOpenDialog.vtbl.addOption(unsafe.Pointer(fileOpenDialog), FosPickfolders)
+	} else {
+		return fileOpenDialog.vtbl.removeOption(unsafe.Pointer(fileOpenDialog), FosPickfolders)
+	}
+}
+
+const FosAllowMultiselect = 0x200
+
+func (fileOpenDialog *iFileOpenDialog) isMultiselect() (bool, error) {
+	options, err := fileOpenDialog.vtbl.getOptions(unsafe.Pointer(fileOpenDialog))
+	if err != nil {
+		return false, err
+	}
+	return options&FosAllowMultiselect != 0, nil
+}
+
+func (fileOpenDialog *iFileOpenDialog) setIsMultiselect(isMultiselect bool) error {
+	if isMultiselect {
+		return fileOpenDialog.vtbl.addOption(unsafe.Pointer(fileOpenDialog), FosAllowMultiselect)
+	} else {
+		return fileOpenDialog.vtbl.removeOption(unsafe.Pointer(fileOpenDialog), FosAllowMultiselect)
+	}
+}
+
+func (vtbl *iFileOpenDialogVtbl) getResults(objPtr unsafe.Pointer) (*iShellItemArray, error) {
+	var shellItemArray *iShellItemArray
+	ret, _, _ := syscall.Syscall(vtbl.GetResults,
+		1,
+		uintptr(objPtr),
+		uintptr(unsafe.Pointer(&shellItemArray)),
+		0)
+	return shellItemArray, hresultToError(ret)
+}
+
+func (vtbl *iFileOpenDialogVtbl) getResultsStrings(objPtr unsafe.Pointer) ([]string, error) {
+	shellItemArray, err := vtbl.getResults(objPtr)
+	if err != nil {
+		return nil, err
+	}
+	if shellItemArray == nil {
+		return nil, ErrorCancelled
+	}
+	defer shellItemArray.vtbl.release(unsafe.Pointer(shellItemArray))
+	count, err := shellItemArray.vtbl.getCount(unsafe.Pointer(shellItemArray))
+	if err != nil {
+		return nil, err
+	}
+	var results []string
+	for i := uintptr(0); i < count; i++ {
+		newItem, err := shellItemArray.vtbl.getItemAt(unsafe.Pointer(shellItemArray), i)
+		if err != nil {
+			return nil, err
+		}
+		results = append(results, newItem)
+	}
+	return results, nil
+}

v2/internal/go-common-file-dialog/cfd/iFileSaveDialog.go

@@ -0,0 +1,93 @@
+//go:build windows
+// +build windows
+
+package cfd
+
+import (
+	"github.com/go-ole/go-ole"
+	"github.com/wailsapp/wails/v2/internal/go-common-file-dialog/util"
+	"unsafe"
+)
+
+var (
+	saveFileDialogCLSID = ole.NewGUID("{C0B4E2F3-BA21-4773-8DBA-335EC946EB8B}")
+	saveFileDialogIID   = ole.NewGUID("{84bccd23-5fde-4cdb-aea4-af64b83d78ab}")
+)
+
+type iFileSaveDialog struct {
+	vtbl               *iFileSaveDialogVtbl
+	parentWindowHandle uintptr
+}
+
+type iFileSaveDialogVtbl struct {
+	iFileDialogVtbl
+
+	SetSaveAsItem          uintptr
+	SetProperties          uintptr
+	SetCollectedProperties uintptr
+	GetProperties          uintptr
+	ApplyProperties        uintptr
+}
+
+func newIFileSaveDialog() (*iFileSaveDialog, error) {
+	if unknown, err := ole.CreateInstance(saveFileDialogCLSID, saveFileDialogIID); err == nil {
+		return (*iFileSaveDialog)(unsafe.Pointer(unknown)), nil
+	} else {
+		return nil, err
+	}
+}
+
+func (fileSaveDialog *iFileSaveDialog) Show() error {
+	return fileSaveDialog.vtbl.show(unsafe.Pointer(fileSaveDialog), fileSaveDialog.parentWindowHandle)
+}
+
+func (fileSaveDialog *iFileSaveDialog) SetParentWindowHandle(hwnd uintptr) {
+	fileSaveDialog.parentWindowHandle = hwnd
+}
+
+func (fileSaveDialog *iFileSaveDialog) ShowAndGetResult() (string, error) {
+	if err := fileSaveDialog.Show(); err != nil {
+		return "", err
+	}
+	return fileSaveDialog.GetResult()
+}
+
+func (fileSaveDialog *iFileSaveDialog) SetTitle(title string) error {
+	return fileSaveDialog.vtbl.setTitle(unsafe.Pointer(fileSaveDialog), title)
+}
+
+func (fileSaveDialog *iFileSaveDialog) GetResult() (string, error) {
+	return fileSaveDialog.vtbl.getResultString(unsafe.Pointer(fileSaveDialog))
+}
+
+func (fileSaveDialog *iFileSaveDialog) Release() error {
+	return fileSaveDialog.vtbl.release(unsafe.Pointer(fileSaveDialog))
+}
+
+func (fileSaveDialog *iFileSaveDialog) SetDefaultFolder(defaultFolderPath string) error {
+	return fileSaveDialog.vtbl.setDefaultFolder(unsafe.Pointer(fileSaveDialog), defaultFolderPath)
+}
+
+func (fileSaveDialog *iFileSaveDialog) SetFolder(defaultFolderPath string) error {
+	return fileSaveDialog.vtbl.setFolder(unsafe.Pointer(fileSaveDialog), defaultFolderPath)
+}
+
+func (fileSaveDialog *iFileSaveDialog) SetFileFilters(filter []FileFilter) error {
+	return fileSaveDialog.vtbl.setFileTypes(unsafe.Pointer(fileSaveDialog), filter)
+}
+
+func (fileSaveDialog *iFileSaveDialog) SetRole(role string) error {
+	return fileSaveDialog.vtbl.setClientGuid(unsafe.Pointer(fileSaveDialog), util.StringToUUID(role))
+}
+
+func (fileSaveDialog *iFileSaveDialog) SetDefaultExtension(defaultExtension string) error {
+	return fileSaveDialog.vtbl.setDefaultExtension(unsafe.Pointer(fileSaveDialog), defaultExtension)
+}
+
+func (fileSaveDialog *iFileSaveDialog) SetFileName(initialFileName string) error {
+	return fileSaveDialog.vtbl.setFileName(unsafe.Pointer(fileSaveDialog), initialFileName)
+}
+
+func (fileSaveDialog *iFileSaveDialog) SetSelectedFileFilterIndex(index uint) error {
+	return fileSaveDialog.vtbl.setSelectedFileFilterIndex(unsafe.Pointer(fileSaveDialog), index)
+}

v2/internal/go-common-file-dialog/cfd/iShellItem.go

@@ -0,0 +1,53 @@
+//go:build windows
+// +build windows
+
+package cfd
+
+import (
+	"github.com/go-ole/go-ole"
+	"syscall"
+	"unsafe"
+)
+
+var (
+	procSHCreateItemFromParsingName = syscall.NewLazyDLL("Shell32.dll").NewProc("SHCreateItemFromParsingName")
+	iidShellItem                    = ole.NewGUID("43826d1e-e718-42ee-bc55-a1e261c37bfe")
+)
+
+type iShellItem struct {
+	vtbl *iShellItemVtbl
+}
+
+type iShellItemVtbl struct {
+	iUnknownVtbl
+	BindToHandler  uintptr
+	GetParent      uintptr
+	GetDisplayName uintptr // func (sigdnName SIGDN, ppszName *LPWSTR) HRESULT
+	GetAttributes  uintptr
+	Compare        uintptr
+}
+
+func newIShellItem(path string) (*iShellItem, error) {
+	var shellItem *iShellItem
+	pathPtr := ole.SysAllocString(path)
+	ret, _, _ := procSHCreateItemFromParsingName.Call(
+		uintptr(unsafe.Pointer(pathPtr)),
+		0,
+		uintptr(unsafe.Pointer(iidShellItem)),
+		uintptr(unsafe.Pointer(&shellItem)))
+	return shellItem, hresultToError(ret)
+}
+
+func (vtbl *iShellItemVtbl) getDisplayName(objPtr unsafe.Pointer) (string, error) {
+	var ptr *uint16
+	ret, _, _ := syscall.Syscall(vtbl.GetDisplayName,
+		2,
+		uintptr(objPtr),
+		0x80058000, // SIGDN_FILESYSPATH
+		uintptr(unsafe.Pointer(&ptr)))
+	if err := hresultToError(ret); err != nil {
+		return "", err
+	}
+	defer ole.CoTaskMemFree(uintptr(unsafe.Pointer(ptr)))
+	return ole.LpOleStrToString(ptr), nil
+}