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Merge pull request #1089 from wailsapp/feature/fix-linux-dialogs

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[linux] Fix dialogs
This commit is contained in:
Lea Anthony 2022-01-26 18:27:20 +11:00 committed by GitHub
commit 160b650833
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GPG Key ID: 4AEE18F83AFDEB23
8 changed files with 428 additions and 89 deletions
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13
v2/internal/appng/app_default_darwin.go
View File

@ -17,16 +17,5 @@ func (a *App) Run() error {
// CreateApp creates the app!
func CreateApp(_ *options.App) (*App, error) {
// result := w32.MessageBox(0,
// `Wails applications will not build without the correct build tags.
//Please use "wails build" or press "OK" to open the documentation on how to use "go build"`,
// "Error",
// w32.MB_ICONERROR|w32.MB_OKCANCEL)
// if result == 1 {
// exec.Command("rundll32", "url.dll,FileProtocolHandler", "https://wails.io").Start()
// }
err := fmt.Errorf(`Wails applications will not build without the correct build tags.`)
return nil, err
return nil, fmt.Errorf(`Wails applications will not build without the correct build tags.`)
}

13
v2/internal/appng/app_default_linux.go
View File

@ -17,16 +17,5 @@ func (a *App) Run() error {
// CreateApp creates the app!
func CreateApp(_ *options.App) (*App, error) {
// result := w32.MessageBox(0,
// `Wails applications will not build without the correct build tags.
//Please use "wails build" or press "OK" to open the documentation on how to use "go build"`,
// "Error",
// w32.MB_ICONERROR|w32.MB_OKCANCEL)
// if result == 1 {
// exec.Command("rundll32", "url.dll,FileProtocolHandler", "https://wails.io").Start()
// }
err := fmt.Errorf(`Wails applications will not build without the correct build tags.`)
return nil, err
return nil, fmt.Errorf(`Wails applications will not build without the correct build tags.`)
}

15
v2/internal/appng/app_production.go
View File

@ -78,12 +78,14 @@ func CreateApp(appoptions *options.App) (*App, error) {
ctx = context.WithValue(ctx, "events", eventHandler)
messageDispatcher := dispatcher.NewDispatcher(myLogger, appBindings, eventHandler)
appFrontend := desktop.NewFrontend(ctx, appoptions, myLogger, appBindings, messageDispatcher)
eventHandler.AddFrontend(appFrontend)
debug := IsDebug()
ctx = context.WithValue(ctx, "debug", debug)
// Attach logger to context
ctx = context.WithValue(ctx, "logger", myLogger)
appFrontend := desktop.NewFrontend(ctx, appoptions, myLogger, appBindings, messageDispatcher)
eventHandler.AddFrontend(appFrontend)
result := &App{
ctx: ctx,
frontend: appFrontend,
@ -91,13 +93,10 @@ func CreateApp(appoptions *options.App) (*App, error) {
menuManager: menuManager,
startupCallback: appoptions.OnStartup,
shutdownCallback: appoptions.OnShutdown,
debug: IsDebug(),
debug: debug,
options: appoptions,
}
result.options = appoptions
result.ctx = context.WithValue(result.ctx, "debug", result.debug)
return result, nil
}

32
v2/internal/frontend/desktop/linux/calloc.go Normal file
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@ -0,0 +1,32 @@
package linux
/*
#include <stdlib.h>
*/
import "C"
import "unsafe"
// Calloc handles alloc/dealloc of C data
type Calloc struct {
pool []unsafe.Pointer
}
// NewCalloc creates a new allocator
func NewCalloc() Calloc {
return Calloc{}
}
// String creates a new C string and retains a reference to it
func (c Calloc) String(in string) *C.char {
result := C.CString(in)
c.pool = append(c.pool, unsafe.Pointer(result))
return result
}
// Free frees all allocated C memory
func (c Calloc) Free() {
for _, str := range c.pool {
C.free(str)
}
c.pool = []unsafe.Pointer{}
}

77
v2/internal/frontend/desktop/linux/dialog.go
View File

@ -3,24 +3,87 @@
package linux
import "github.com/wailsapp/wails/v2/internal/frontend"
import (
"github.com/wailsapp/wails/v2/internal/frontend"
"unsafe"
)
func (f *Frontend) OpenFileDialog(dialogOptions frontend.OpenDialogOptions) (string, error) {
panic("implement me")
/*
#include <stdlib.h>
#include "gtk/gtk.h"
*/
import "C"
const (
GTK_FILE_CHOOSER_ACTION_OPEN C.GtkFileChooserAction = C.GTK_FILE_CHOOSER_ACTION_OPEN
GTK_FILE_CHOOSER_ACTION_SAVE C.GtkFileChooserAction = C.GTK_FILE_CHOOSER_ACTION_SAVE
GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER C.GtkFileChooserAction = C.GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER
)
var openFileResults = make(chan []string)
var messageDialogResult = make(chan string)
func (f *Frontend) OpenFileDialog(dialogOptions frontend.OpenDialogOptions) (result string, err error) {
f.mainWindow.OpenFileDialog(dialogOptions, 0, GTK_FILE_CHOOSER_ACTION_OPEN)
results := <-openFileResults
if len(results) == 1 {
return results[0], nil
}
return "", nil
}
func (f *Frontend) OpenMultipleFilesDialog(dialogOptions frontend.OpenDialogOptions) ([]string, error) {
panic("implement me")
f.mainWindow.OpenFileDialog(dialogOptions, 1, GTK_FILE_CHOOSER_ACTION_OPEN)
result := <-openFileResults
return result, nil
}
func (f *Frontend) OpenDirectoryDialog(dialogOptions frontend.OpenDialogOptions) (string, error) {
panic("implement me")
f.mainWindow.OpenFileDialog(dialogOptions, 0, GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER)
result := <-openFileResults
if len(result) == 1 {
return result[0], nil
}
return "", nil
}
func (f *Frontend) SaveFileDialog(dialogOptions frontend.SaveDialogOptions) (string, error) {
panic("implement me")
options := frontend.OpenDialogOptions{
DefaultDirectory: dialogOptions.DefaultDirectory,
DefaultFilename: dialogOptions.DefaultFilename,
Title: dialogOptions.Title,
Filters: dialogOptions.Filters,
ShowHiddenFiles: dialogOptions.ShowHiddenFiles,
CanCreateDirectories: dialogOptions.CanCreateDirectories,
}
f.mainWindow.OpenFileDialog(options, 0, GTK_FILE_CHOOSER_ACTION_SAVE)
results := <-openFileResults
if len(results) == 1 {
return results[0], nil
}
return "", nil
}
func (f *Frontend) MessageDialog(dialogOptions frontend.MessageDialogOptions) (string, error) {
panic("implement me")
f.mainWindow.MessageDialog(dialogOptions)
return <-messageDialogResult, nil
}
//export processOpenFileResult
func processOpenFileResult(carray **C.char) {
// Create a Go slice from the C array
var result []string
goArray := (*[1024]*C.char)(unsafe.Pointer(carray))[:1024:1024]
for _, s := range goArray {
if s == nil {
break
}
result = append(result, C.GoString(s))
}
openFileResults <- result
}
//export processMessageDialogResult
func processMessageDialogResult(result *C.char) {
messageDialogResult <- C.GoString(result)
}

34
v2/internal/frontend/desktop/linux/frontend.go
View File

@ -345,24 +345,22 @@ func (f *Frontend) processRequest(request unsafe.Pointer) {
content, mimeType, err := f.assets.Load(file)
// TODO How to return 404/500 errors to webkit?
if err != nil {
var gerr *C.GError
if os.IsNotExist(err) {
message := C.CString("not found")
defer C.free(unsafe.Pointer(message))
gerr = C.g_error_new_literal(C.G_FILE_ERROR_NOENT, C.int(404), message)
C.webkit_uri_scheme_request_finish_error(req, gerr)
} else {
err = fmt.Errorf("Error processing request %s: %w", uri, err)
f.logger.Error(err.Error())
message := C.CString("internal server error")
defer C.free(unsafe.Pointer(message))
gerr = C.g_error_new_literal(C.G_FILE_ERROR_NOENT, C.int(500), message)
C.webkit_uri_scheme_request_finish_error(req, gerr)
}
C.g_error_free(gerr)
return
}
//if err != nil {
//if os.IsNotExist(err) {
// f.dispatch(func() {
// message := C.CString("not found")
// defer C.free(unsafe.Pointer(message))
// C.webkit_uri_scheme_request_finish_error(req, C.g_error_new_literal(C.G_FILE_ERROR_NOENT, C.int(404), message))
// })
//} else {
// err = fmt.Errorf("Error processing request %s: %w", uri, err)
// f.logger.Error(err.Error())
// message := C.CString("internal server error")
// defer C.free(unsafe.Pointer(message))
// C.webkit_uri_scheme_request_finish_error(req, C.g_error_new_literal(C.G_FILE_ERROR_NOENT, C.int(500), message))
//}
//return
//}
cContent := C.CString(string(content))
defer C.free(unsafe.Pointer(cContent))

261
v2/internal/frontend/desktop/linux/window.go
View File

@ -142,7 +142,7 @@ void connectButtons(void* webview) {
g_signal_connect(WEBKIT_WEB_VIEW(webview), "button-release-event", G_CALLBACK(buttonRelease), NULL);
}
extern void processURLRequest(WebKitURISchemeRequest *request);
extern void processURLRequest(void *request);
// This is called when the close button on the window is pressed
gboolean close_button_pressed(GtkWidget *widget, GdkEvent *event, void* data)
@ -196,13 +196,188 @@ int executeJS(gpointer data) {
return G_SOURCE_REMOVE;
}
void ExecuteOnMainThread(JSCallback* jscallback) {
g_idle_add((GSourceFunc)executeJS, (gpointer)jscallback);
void ExecuteOnMainThread(void* f, gpointer jscallback) {
g_idle_add((GSourceFunc)f, (gpointer)jscallback);
}
void extern processMessageDialogResult(char*);
typedef struct MessageDialogOptions {
void* window;
char* title;
char* message;
int messageType;
} MessageDialogOptions;
void messageDialog(gpointer data) {
GtkDialogFlags flags;
GtkMessageType messageType;
MessageDialogOptions *options = (MessageDialogOptions*) data;
if( options->messageType == 0 ) {
messageType = GTK_MESSAGE_INFO;
flags = GTK_BUTTONS_OK;
} else if( options->messageType == 1 ) {
messageType = GTK_MESSAGE_ERROR;
flags = GTK_BUTTONS_OK;
} else if( options->messageType == 2 ) {
messageType = GTK_MESSAGE_QUESTION;
flags = GTK_BUTTONS_YES_NO;
} else {
messageType = GTK_MESSAGE_WARNING;
flags = GTK_BUTTONS_OK;
}
GtkWidget *dialog;
dialog = gtk_message_dialog_new(GTK_WINDOW(options->window),
GTK_DIALOG_DESTROY_WITH_PARENT,
messageType,
flags,
options->message, NULL);
gtk_window_set_title(GTK_WINDOW(dialog), options->title);
GtkResponseType result = gtk_dialog_run(GTK_DIALOG(dialog));
if ( result == GTK_RESPONSE_YES ) {
processMessageDialogResult("Yes");
} else if ( result == GTK_RESPONSE_NO ) {
processMessageDialogResult("No");
} else if ( result == GTK_RESPONSE_OK ) {
processMessageDialogResult("OK");
} else if ( result == GTK_RESPONSE_CANCEL ) {
processMessageDialogResult("Cancel");
} else {
processMessageDialogResult("");
}
gtk_widget_destroy(dialog);
free(options->title);
free(options->message);
}
void extern processOpenFileResult(void*);
typedef struct OpenFileDialogOptions {
void* webview;
char* title;
char* defaultFilename;
char* defaultDirectory;
int createDirectories;
int multipleFiles;
int showHiddenFiles;
GtkFileChooserAction action;
GtkFileFilter** filters;
} OpenFileDialogOptions;
GtkFileFilter** allocFileFilterArray(size_t ln) {
return (GtkFileFilter**) malloc(ln * sizeof(GtkFileFilter*));
}
void freeFileFilterArray(GtkFileFilter** filters) {
free(filters);
}
int opendialog(gpointer data) {
struct OpenFileDialogOptions *options = data;
char *label = "_Open";
if (options->action == GTK_FILE_CHOOSER_ACTION_SAVE) {
label = "_Save";
}
GtkWidget *dlgWidget = gtk_file_chooser_dialog_new(options->title, options->webview, options->action,
"_Cancel", GTK_RESPONSE_CANCEL,
label, GTK_RESPONSE_ACCEPT,
NULL);
GtkFileChooser *fc = GTK_FILE_CHOOSER(dlgWidget);
// filters
if (options->filters != 0) {
int index = 0;
GtkFileFilter* thisFilter;
while(options->filters[index] != NULL) {
thisFilter = options->filters[index];
gtk_file_chooser_add_filter(fc, thisFilter);
index++;
}
}
gtk_file_chooser_set_local_only(fc, FALSE);
if (options->multipleFiles == 1) {
gtk_file_chooser_set_select_multiple(fc, TRUE);
}
gtk_file_chooser_set_do_overwrite_confirmation(fc, TRUE);
if (options->createDirectories == 1) {
gtk_file_chooser_set_create_folders(fc, TRUE);
}
if (options->showHiddenFiles == 1) {
gtk_file_chooser_set_show_hidden(fc, TRUE);
}
if (options->defaultDirectory != NULL) {
gtk_file_chooser_set_current_folder (fc, options->defaultDirectory);
free(options->defaultDirectory);
}
if (options->action == GTK_FILE_CHOOSER_ACTION_SAVE) {
if (options->defaultFilename != NULL) {
gtk_file_chooser_set_current_name(fc, options->defaultFilename);
free(options->defaultFilename);
}
}
gint response = gtk_dialog_run(GTK_DIALOG(dlgWidget));
// Max 1024 files to select
char** result = calloc(1024, sizeof(char*));
int resultIndex = 0;
if (response == GTK_RESPONSE_ACCEPT) {
GSList* filenames = gtk_file_chooser_get_filenames(fc);
GSList *iter = filenames;
while(iter) {
result[resultIndex++] = (char *)iter->data;
iter = g_slist_next(iter);
if (resultIndex == 1024) {
break;
}
}
processOpenFileResult(result);
iter = filenames;
while(iter) {
g_free(iter->data);
iter = g_slist_next(iter);
}
} else {
processOpenFileResult(result);
}
free(result);
// Release filters
if (options->filters != NULL) {
int index = 0;
GtkFileFilter* thisFilter;
while(options->filters[index] != 0) {
thisFilter = options->filters[index];
g_object_unref(thisFilter);
index++;
}
freeFileFilterArray(options->filters);
}
gtk_widget_destroy(dlgWidget);
free(options->title);
return G_SOURCE_REMOVE;
}
GtkFileFilter* newFileFilter() {
GtkFileFilter* result = gtk_file_filter_new();
g_object_ref(result);
return result;
}
*/
import "C"
import (
"github.com/wailsapp/wails/v2/internal/frontend"
"github.com/wailsapp/wails/v2/pkg/options"
"strings"
"unsafe"
)
@ -253,6 +428,7 @@ func NewWindow(appoptions *options.App, debug bool) *Window {
if debug {
C.devtoolsEnabled(unsafe.Pointer(webview), C.int(1))
}
// Setup window
@ -384,6 +560,7 @@ func (w *Window) Run() {
case options.Maximised:
w.Maximise()
}
C.gtk_main()
w.Destroy()
}
@ -413,9 +590,9 @@ func (w *Window) SetTitle(title string) {
func (w *Window) ExecJS(js string) {
jscallback := C.JSCallback{
webview: w.webview,
script: C.CString(js),
script: C.CString(js),
}
C.ExecuteOnMainThread(&jscallback)
C.ExecuteOnMainThread(C.executeJS, C.gpointer(&jscallback))
}
func (w *Window) StartDrag() {
@ -425,3 +602,77 @@ func (w *Window) StartDrag() {
func (w *Window) Quit() {
C.gtk_main_quit()
}
func (w *Window) OpenFileDialog(dialogOptions frontend.OpenDialogOptions, multipleFiles int, action C.GtkFileChooserAction) {
data := C.OpenFileDialogOptions{
webview: w.webview,
title: C.CString(dialogOptions.Title),
multipleFiles: C.int(multipleFiles),
action: action,
}
if len(dialogOptions.Filters) > 0 {
// Create filter array
mem := NewCalloc()
arraySize := len(dialogOptions.Filters) + 1
data.filters = C.allocFileFilterArray((C.ulong)(arraySize))
filters := (*[1 << 30]*C.struct__GtkFileFilter)(unsafe.Pointer(data.filters))
for index, filter := range dialogOptions.Filters {
thisFilter := C.gtk_file_filter_new()
C.g_object_ref(C.gpointer(thisFilter))
if filter.DisplayName != "" {
cName := mem.String(filter.DisplayName)
C.gtk_file_filter_set_name(thisFilter, cName)
}
if filter.Pattern != "" {
for _, thisPattern := range strings.Split(filter.Pattern, ";") {
cThisPattern := mem.String(thisPattern)
C.gtk_file_filter_add_pattern(thisFilter, cThisPattern)
}
}
// Add filter to array
filters[index] = thisFilter
}
mem.Free()
filters[arraySize-1] = nil
}
if dialogOptions.CanCreateDirectories {
data.createDirectories = C.int(1)
}
if dialogOptions.ShowHiddenFiles {
data.showHiddenFiles = C.int(1)
}
if dialogOptions.DefaultFilename != "" {
data.defaultFilename = C.CString(dialogOptions.DefaultFilename)
}
if dialogOptions.DefaultDirectory != "" {
data.defaultDirectory = C.CString(dialogOptions.DefaultDirectory)
}
C.ExecuteOnMainThread(C.opendialog, C.gpointer(&data))
}
func (w *Window) MessageDialog(dialogOptions frontend.MessageDialogOptions) {
data := C.MessageDialogOptions{
window: w.gtkWindow,
title: C.CString(dialogOptions.Title),
message: C.CString(dialogOptions.Message),
}
switch dialogOptions.Type {
case frontend.InfoDialog:
data.messageType = C.int(0)
case frontend.ErrorDialog:
data.messageType = C.int(1)
case frontend.QuestionDialog:
data.messageType = C.int(2)
case frontend.WarningDialog:
data.messageType = C.int(3)
}
C.ExecuteOnMainThread(C.messageDialog, C.gpointer(&data))
}

72
website/docs/reference/runtime/dialog.mdx
View File

@ -75,16 +75,16 @@ type OpenDialogOptions struct {
TreatPackagesAsDirectories bool
}
```
| Field | Description | Win | Mac |
| -------------------------- | ---------------------------------------------- | --- | --- |
| DefaultDirectory | The directory the dialog will show when opened | ✅ | ✅ |
| DefaultFilename | The default filename | ✅ | ✅ |
| Title | Title for the dialog | ✅ | ✅ |
| [Filters](#filefilter) | A list of file filters | ✅ | ✅ |
| ShowHiddenFiles | Show files hidden by the system | | ✅ |
| CanCreateDirectories | Allow user to create directories | | ✅ |
| ResolvesAliases | If true, returns the file not the alias | | ✅ |
| TreatPackagesAsDirectories | Allow navigating into packages | | ✅ |
| Field | Description | Win | Mac | Lin |
| -------------------------- | ---------------------------------------------- | --- | --- | --- |
| DefaultDirectory | The directory the dialog will show when opened | ✅ | ✅ | ✅ |
| DefaultFilename | The default filename | ✅ | ✅ | ✅ |
| Title | Title for the dialog | ✅ | ✅ | ✅ |
| [Filters](#filefilter) | A list of file filters | ✅ | ✅ | ✅ |
| ShowHiddenFiles | Show files hidden by the system | | ✅ | ✅ |
| CanCreateDirectories | Allow user to create directories | | ✅ | |
| ResolvesAliases | If true, returns the file not the alias | | ✅ | |
| TreatPackagesAsDirectories | Allow navigating into packages | | ✅ | |
### SaveDialogOptions
@ -101,15 +101,15 @@ type SaveDialogOptions struct {
}
```
| Field | Description | Win | Mac |
| -------------------------- | ---------------------------------------------- | --- | --- |
| DefaultDirectory | The directory the dialog will show when opened | ✅ | ✅ |
| DefaultFilename | The default filename | ✅ | ✅ |
| Title | Title for the dialog | ✅ | ✅ |
| [Filters](#filefilter) | A list of file filters | ✅ | ✅ |
| ShowHiddenFiles | Show files hidden by the system | | ✅ |
| CanCreateDirectories | Allow user to create directories | | ✅ |
| TreatPackagesAsDirectories | Allow navigating into packages | | ✅ |
| Field | Description | Win | Mac | Lin |
| -------------------------- | ---------------------------------------------- | --- | --- | --- |
| DefaultDirectory | The directory the dialog will show when opened | ✅ | ✅ | ✅ |
| DefaultFilename | The default filename | ✅ | ✅ | ✅ |
| Title | Title for the dialog | ✅ | ✅ | ✅ |
| [Filters](#filefilter) | A list of file filters | ✅ | ✅ | ✅ |
| ShowHiddenFiles | Show files hidden by the system | | ✅ | ✅ |
| CanCreateDirectories | Allow user to create directories | | ✅ | |
| TreatPackagesAsDirectories | Allow navigating into packages | | ✅ | |
### MessageDialogOptions
@ -123,20 +123,25 @@ type MessageDialogOptions struct {
CancelButton string
}
```
| Field | Description | Win | Mac |
| ------------- | ------------------------------------------------------------------------- | --- | --- |
| Type | The type of message dialog, eg question, info... | ✅ | ✅ |
| Title | Title for the dialog | ✅ | ✅ |
| Message | The message to show the user | ✅ | ✅ |
| Buttons | A list of button titles | | ✅ |
| DefaultButton | The button with this text should be treated as default. Bound to `return` | | ✅ |
| CancelButton | The button with this text should be treated as cancel. Bound to `escape` | | ✅ |
| Field | Description | Win | Mac | Lin |
| ------------- | ------------------------------------------------------------------------- | --- | --- | --- |
| Type | The type of message dialog, eg question, info... | ✅ | ✅ | ✅ |
| Title | Title for the dialog | ✅ | ✅ | ✅ |
| Message | The message to show the user | ✅ | ✅ | ✅ |
| Buttons | A list of button titles | | ✅ | |
| DefaultButton | The button with this text should be treated as default. Bound to `return` | | ✅ | |
| CancelButton | The button with this text should be treated as cancel. Bound to `escape` | | ✅ | |
#### Windows
Windows has standard dialog types in which the buttons are not customisable.
The value returned will be one of: "Ok", "Cancel", "Abort", "Retry", "Ignore", "Yes", "No", "Try Again" or "Continue"
#### Linux
Linux has standard dialog types in which the buttons are not customisable.
The value returned will be one of: "Ok", "Cancel", "Yes", "No"
#### Mac
A message dialog on Mac may specify up to 4 buttons. If no `DefaultButton` or `CancelButton` is given, the first button
@ -222,6 +227,19 @@ dialog:
<br/>
<br/>
#### Linux
Linux allows you to use multiple file filters in dialog boxes. Each FileFilter will show up as a separate entry in the
dialog:
<div class="text--center">
<img src="/img/runtime/dialog_lin_filters.png" width="50%" style={{"box-shadow": "rgb(255 255 255 / 20%) 0px 4px 8px 0px, rgb(104 104 104) 0px 6px 20px 0px"}}/>
</div>
<br/>
<br/>
<br/>
#### Mac
Mac dialogs only have the concept of a single set of patterns to filter files. If multiple FileFilters are provided,