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wails/v3/pkg/application/dialogs_linux.go
2023-05-10 09:10:03 -05:00

301 lines
7.9 KiB
Go

//go:build linux
package application
/*
#cgo linux pkg-config: gtk+-3.0 webkit2gtk-4.0
#include <gtk/gtk.h>
#include <gdk/gdk.h>
#include <stdio.h>
static GtkWidget* new_about_dialog(GtkWindow *parent, const gchar *msg) {
// gtk_message_dialog_new is variadic! Can't call from cgo
GtkWidget *dialog;
dialog = gtk_message_dialog_new(
parent,
GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_INFO,
GTK_BUTTONS_CLOSE,
msg);
g_signal_connect_swapped (dialog,
"response",
G_CALLBACK (gtk_widget_destroy),
dialog);
return dialog;
};
*/
import "C"
import (
"fmt"
"unsafe"
)
const AlertStyleWarning = C.int(0)
const AlertStyleInformational = C.int(1)
const AlertStyleCritical = C.int(2)
var alertTypeMap = map[DialogType]C.int{
WarningDialog: AlertStyleWarning,
InfoDialog: AlertStyleInformational,
ErrorDialog: AlertStyleCritical,
QuestionDialog: AlertStyleInformational,
}
func setWindowIcon(window *C.GtkWindow, icon []byte) {
fmt.Println("setWindowIcon", len(icon))
loader := C.gdk_pixbuf_loader_new()
if loader == nil {
return
}
written := C.gdk_pixbuf_loader_write(
loader,
(*C.uchar)(&icon[0]),
C.ulong(len(icon)),
nil)
if written == 0 {
fmt.Println("failed to write icon")
return
}
C.gdk_pixbuf_loader_close(loader, nil)
pixbuf := C.gdk_pixbuf_loader_get_pixbuf(loader)
if pixbuf != nil {
fmt.Println("gtk_window_set_icon", window)
C.gtk_window_set_icon((*C.GtkWindow)(window), pixbuf)
}
C.g_object_unref(C.gpointer(loader))
}
func (m *linuxApp) showAboutDialog(title string, message string, icon []byte) {
globalApplication.dispatchOnMainThread(func() {
parent := C.gtk_application_get_active_window((*C.GtkApplication)(m.application))
cMsg := C.CString(message)
cTitle := C.CString(title)
defer C.free(unsafe.Pointer(cMsg))
defer C.free(unsafe.Pointer(cTitle))
dialog := C.new_about_dialog(parent, cMsg)
C.gtk_window_set_title(
(*C.GtkWindow)(unsafe.Pointer(dialog)),
cTitle)
// setWindowIcon((*C.GtkWindow)(dialog), icon)
C.gtk_dialog_run((*C.GtkDialog)(unsafe.Pointer(dialog)))
})
}
type linuxDialog struct {
dialog *MessageDialog
//nsDialog unsafe.Pointer
}
func (m *linuxDialog) show() {
globalApplication.dispatchOnMainThread(func() {
// Mac can only have 4 Buttons on a dialog
if len(m.dialog.Buttons) > 4 {
m.dialog.Buttons = m.dialog.Buttons[:4]
}
// if m.nsDialog != nil {
// //C.releaseDialog(m.nsDialog)
// }
// var title *C.char
// if m.dialog.Title != "" {
// title = C.CString(m.dialog.Title)
// }
// var message *C.char
// if m.dialog.Message != "" {
// message = C.CString(m.dialog.Message)
// }
// var iconData unsafe.Pointer
// var iconLength C.int
// if m.dialog.Icon != nil {
// iconData = unsafe.Pointer(&m.dialog.Icon[0])
// iconLength = C.int(len(m.dialog.Icon))
// } else {
// // if it's an error, use the application Icon
// if m.dialog.DialogType == ErrorDialog {
// iconData = unsafe.Pointer(&globalApplication.options.Icon[0])
// iconLength = C.int(len(globalApplication.options.Icon))
// }
// }
// alertType, ok := alertTypeMap[m.dialog.DialogType]
// if !ok {
// alertType = AlertStyleInformational
// }
// m.nsDialog = C.createAlert(alertType, title, message, iconData, iconLength)
// Reverse the Buttons so that the default is on the right
reversedButtons := make([]*Button, len(m.dialog.Buttons))
var count = 0
for i := len(m.dialog.Buttons) - 1; i >= 0; i-- {
//button := m.dialog.Buttons[i]
//C.alertAddButton(m.nsDialog, C.CString(button.Label), C.bool(button.IsDefault), C.bool(button.IsCancel))
reversedButtons[count] = m.dialog.Buttons[i]
count++
}
buttonPressed := int(0) //C.dialogRunModal(m.nsDialog))
if len(m.dialog.Buttons) > buttonPressed {
button := reversedButtons[buttonPressed]
if button.callback != nil {
button.callback()
}
}
})
}
func newDialogImpl(d *MessageDialog) *linuxDialog {
return &linuxDialog{
dialog: d,
}
}
type linuxOpenFileDialog struct {
dialog *OpenFileDialog
}
func newOpenFileDialogImpl(d *OpenFileDialog) *linuxOpenFileDialog {
return &linuxOpenFileDialog{
dialog: d,
}
}
func toCString(s string) *C.char {
if s == "" {
return nil
}
return C.CString(s)
}
func (m *linuxOpenFileDialog) show() ([]string, error) {
openFileResponses[m.dialog.id] = make(chan string)
// nsWindow := unsafe.Pointer(nil)
if m.dialog.window != nil {
// get NSWindow from window
//nsWindow = m.dialog.window.impl.(*macosWebviewWindow).nsWindow
}
// Massage filter patterns into macOS format
// We iterate all filter patterns, tidy them up and then join them with a semicolon
// This should produce a single string of extensions like "png;jpg;gif"
// var filterPatterns string
// if len(m.dialog.filters) > 0 {
// var allPatterns []string
// for _, filter := range m.dialog.filters {
// patternComponents := strings.Split(filter.Pattern, ";")
// for i, component := range patternComponents {
// filterPattern := strings.TrimSpace(component)
// filterPattern = strings.TrimPrefix(filterPattern, "*.")
// patternComponents[i] = filterPattern
// }
// allPatterns = append(allPatterns, strings.Join(patternComponents, ";"))
// }
// filterPatterns = strings.Join(allPatterns, ";")
// }
// C.showOpenFileDialog(C.uint(m.dialog.id),
// C.bool(m.dialog.canChooseFiles),
// C.bool(m.dialog.canChooseDirectories),
// C.bool(m.dialog.canCreateDirectories),
// C.bool(m.dialog.showHiddenFiles),
// C.bool(m.dialog.allowsMultipleSelection),
// C.bool(m.dialog.resolvesAliases),
// C.bool(m.dialog.hideExtension),
// C.bool(m.dialog.treatsFilePackagesAsDirectories),
// C.bool(m.dialog.allowsOtherFileTypes),
// toCString(filterPatterns),
// C.uint(len(filterPatterns)),
// toCString(m.dialog.message),
// toCString(m.dialog.directory),
// toCString(m.dialog.buttonText),
// nsWindow)
var result []string
for filename := range openFileResponses[m.dialog.id] {
result = append(result, filename)
}
return result, nil
}
//export openFileDialogCallback
func openFileDialogCallback(cid C.uint, cpath *C.char) {
path := C.GoString(cpath)
id := uint(cid)
channel, ok := openFileResponses[id]
if ok {
channel <- path
} else {
panic("No channel found for open file dialog")
}
}
//export openFileDialogCallbackEnd
func openFileDialogCallbackEnd(cid C.uint) {
id := uint(cid)
channel, ok := openFileResponses[id]
if ok {
close(channel)
delete(openFileResponses, id)
freeDialogID(id)
} else {
panic("No channel found for open file dialog")
}
}
type linuxSaveFileDialog struct {
dialog *SaveFileDialog
}
func newSaveFileDialogImpl(d *SaveFileDialog) *linuxSaveFileDialog {
return &linuxSaveFileDialog{
dialog: d,
}
}
func (m *linuxSaveFileDialog) show() (string, error) {
saveFileResponses[m.dialog.id] = make(chan string)
// nsWindow := unsafe.Pointer(nil)
if m.dialog.window != nil {
// get NSWindow from window
// nsWindow = m.dialog.window.impl.(*linuxWebviewWindow).nsWindow
}
// C.showSaveFileDialog(C.uint(m.dialog.id),
// C.bool(m.dialog.canCreateDirectories),
// C.bool(m.dialog.showHiddenFiles),
// C.bool(m.dialog.canSelectHiddenExtension),
// C.bool(m.dialog.hideExtension),
// C.bool(m.dialog.treatsFilePackagesAsDirectories),
// C.bool(m.dialog.allowOtherFileTypes),
// toCString(m.dialog.message),
// toCString(m.dialog.directory),
// toCString(m.dialog.buttonText),
// toCString(m.dialog.filename),
// nsWindow)
return <-saveFileResponses[m.dialog.id], nil
}
//export saveFileDialogCallback
func saveFileDialogCallback(cid C.uint, cpath *C.char) {
// Covert the path to a string
path := C.GoString(cpath)
id := uint(cid)
// put response on channel
channel, ok := saveFileResponses[id]
if ok {
channel <- path
close(channel)
delete(saveFileResponses, id)
freeDialogID(id)
} else {
panic("No channel found for save file dialog")
}
}