[mac] dialog support

v2/go.sum

@@ -115,8 +115,6 @@ github.com/leaanthony/go-ansi-parser v1.0.1 h1:97v6c5kYppVsbScf4r/VZdXyQ21KQIfeQ
 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/go-webview2 v0.0.0-20210928094513-a94a08b538bd h1:6m4zZ/esiByaDbzgdvDxjsOaIDgtuG1q2cyhjAi6uAg=
-github.com/leaanthony/go-webview2 v0.0.0-20210928094513-a94a08b538bd/go.mod h1:lS5ds4bruPk9d7lzdF/OH31Z0YCerI6MmHNFGsWoUnM=
 github.com/leaanthony/go-webview2 v0.0.0-20211007095229-b1759d2e4ec7 h1:qw9f/UqPp2GQ318n8G0Ikawe8GRkdPpUNJMuYeeafGA=
 github.com/leaanthony/go-webview2 v0.0.0-20211007095229-b1759d2e4ec7/go.mod h1:lS5ds4bruPk9d7lzdF/OH31Z0YCerI6MmHNFGsWoUnM=
 github.com/leaanthony/gosod v1.0.3 h1:Fnt+/B6NjQOVuCWOKYRREZnjGyvg+mEhd1nkkA04aTQ=

v2/internal/frontend/desktop/darwin/Application.h

@@ -38,4 +38,7 @@ const char* GetPos(void *ctx);
 
 void ProcessURLResponse(void *inctx, const char *url, const char *contentType, const char *data, int datalength);
 
+void MessageDialog(void *inctx, const char* dialogType, const char* title, const char* message, const char* button1, const char* button2, const char* button3, const char* button4, const char* defaultButton, const char* cancelButton);
+void OpenFileDialog(void *inctx, const char* title, const char* defaultFilename, const char* defaultDirectory, int allowDirectories, int allowFiles, int canCreateDirectories, int treatPackagesAsDirectories, int resolveAliases, int showHiddenFiles, int allowMultipleSelection, const char* filters);
+void SaveFileDialog(void *inctx, const char* title, const char* defaultFilename, const char* defaultDirectory, int canCreateDirectories, int treatPackagesAsDirectories, int showHiddenFiles, const char* filters);
 #endif /* Application_h */

v2/internal/frontend/desktop/darwin/Application.m

@@ -173,6 +173,29 @@ void Show(void *inctx) {
     );
 }
 
+void MessageDialog(void *inctx, const char* dialogType, const char* title, const char* message, const char* button1, const char* button2, const char* button3, const char* button4, const char* defaultButton, const char* cancelButton) {
+    WailsContext *ctx = (__bridge WailsContext*) inctx;
+    ON_MAIN_THREAD(
+                   [ctx MessageDialog:dialogType :title :message :button1 :button2 :button3 :button4 :defaultButton :cancelButton];
+    )
+}
+
+void OpenFileDialog(void *inctx, const char* title, const char* defaultFilename, const char* defaultDirectory, int allowDirectories, int allowFiles, int canCreateDirectories, int treatPackagesAsDirectories, int resolveAliases, int showHiddenFiles, int allowMultipleSelection, const char* filters) {
+    WailsContext *ctx = (__bridge WailsContext*) inctx;
+    ON_MAIN_THREAD(
+                   [ctx OpenFileDialog:title :defaultFilename :defaultDirectory :allowDirectories :allowFiles :canCreateDirectories :treatPackagesAsDirectories :resolveAliases :showHiddenFiles :allowMultipleSelection :filters];
+    )
+}
+
+void SaveFileDialog(void *inctx, const char* title, const char* defaultFilename, const char* defaultDirectory, int canCreateDirectories, int treatPackagesAsDirectories, int showHiddenFiles, const char* filters) {
+    WailsContext *ctx = (__bridge WailsContext*) inctx;
+    ON_MAIN_THREAD(
+                   [ctx SaveFileDialog:title :defaultFilename :defaultDirectory :canCreateDirectories :treatPackagesAsDirectories :showHiddenFiles :filters];
+    )
+}
+
+
+
 
 void Run(void *inctx) {
     WailsContext *ctx = (__bridge WailsContext*) inctx;

v2/internal/frontend/desktop/darwin/WailsAlert.h

@@ -0,0 +1,18 @@
+//
+//  WailsAlert.h
+//  test
+//
+//  Created by Lea Anthony on 20/10/21.
+//
+
+#ifndef WailsAlert_h
+#define WailsAlert_h
+
+#import <Cocoa/Cocoa.h>
+
+@interface WailsAlert : NSAlert 
+- (void)addButton:(const char*)text :(const char*)defaultButton :(const char*)cancelButton;
+@end
+
+
+#endif /* WailsAlert_h */

v2/internal/frontend/desktop/darwin/WailsAlert.m

@@ -0,0 +1,30 @@
+//
+//  WailsAlert.m
+//  test
+//
+//  Created by Lea Anthony on 20/10/21.
+//
+
+#import <Foundation/Foundation.h>
+
+#import "WailsAlert.h"
+
+@implementation WailsAlert
+
+- (void)addButton:(const char*)text :(const char*)defaultButton :(const char*)cancelButton {
+    if( text == nil ) {
+        return;
+    }
+    NSButton *button = [self addButtonWithTitle:[NSString stringWithUTF8String:text]];
+    if( defaultButton != nil && strcmp(text, defaultButton) == 0) {
+        [button setKeyEquivalent:@"\r"];
+    } else if( cancelButton != nil && strcmp(text, cancelButton) == 0) {
+        [button setKeyEquivalent:@"\033"];
+    } else {
+        [button setKeyEquivalent:@""];
+    }
+}
+
+@end
+
+

v2/internal/frontend/desktop/darwin/WailsContext.h

@@ -59,6 +59,9 @@
 - (void) Hide;
 - (void) Show;
 
+-(void) MessageDialog :(const char*)dialogType :(const char*)title :(const char*)message :(const char*)button1 :(const char*)button2 :(const char*)button3 :(const char*)button4 :(const char*)defaultButton :(const char*)cancelButton;
+-(void) OpenFileDialog :(const char*)title :(const char*)defaultFilename :(const char*)defaultDirectory :(bool)allowDirectories :(bool)allowFiles :(bool)canCreateDirectories :(bool)treatPackagesAsDirectories :(bool)resolveAliases :(bool)showHiddenFiles :(bool)allowMultipleSelection :(const char*)filters;
+-(void) SaveFileDialog :(const char*)title :(const char*)defaultFilename :(const char*)defaultDirectory :(bool)canCreateDirectories :(bool)treatPackagesAsDirectories :(bool)showHiddenFiles :(const char*)filters;
 
 - (void) loadRequest:(NSString*)url;
 - (void) processURLResponse:(NSString *)url :(NSString *)contentType :(NSData*)data;

v2/internal/frontend/desktop/darwin/WailsContext.m

@@ -8,6 +8,7 @@
 #import <Foundation/Foundation.h>
 #import <WebKit/WebKit.h>
 #import "WailsContext.h"
+#import "WailsAlert.h"
 #import "WindowDelegate.h"
 #import "message.h"
 
@@ -368,5 +369,159 @@
     processMessage(_m);
 }
 
+
+/***** Dialogs ******/
+-(void) MessageDialog :(const char*)dialogType :(const char*)title :(const char*)message :(const char*)button1 :(const char*)button2 :(const char*)button3 :(const char*)button4 :(const char*)defaultButton :(const char*)cancelButton {
+
+    WailsAlert *alert = [WailsAlert new];
+    
+    int style = NSAlertStyleInformational;
+    if (dialogType != nil ) {
+        if( strcmp(dialogType, "warning") == 0 ) {
+            style = NSAlertStyleWarning;
+        }
+        if( strcmp(dialogType, "error") == 0) {
+            style = NSAlertStyleCritical;
+        }
+    }
+    [alert setAlertStyle:style];
+    if( strlen(title) > 0 ) {
+        [alert setMessageText:[NSString stringWithUTF8String:title]];
+    }
+    if( strlen(message) > 0 ) {
+        [alert setInformativeText:[NSString stringWithUTF8String:message]];
+    }
+    
+    [alert addButton:button1 :defaultButton :cancelButton];
+    [alert addButton:button2 :defaultButton :cancelButton];
+    [alert addButton:button3 :defaultButton :cancelButton];
+    [alert addButton:button4 :defaultButton :cancelButton];
+    
+    long response = [alert runModal];
+    int result;
+    
+    if( response == NSAlertFirstButtonReturn ) {
+        result = 0;
+    }
+    else if( response == NSAlertSecondButtonReturn ) {
+        result = 1;
+    }
+    else if( response == NSAlertThirdButtonReturn ) {
+        result = 2;
+    } else {
+        result = 3;
+    }
+    processMessageDialogResponse(result);
+}
+
+-(void) OpenFileDialog :(const char*)title :(const char*)defaultFilename :(const char*)defaultDirectory :(bool)allowDirectories :(bool)allowFiles :(bool)canCreateDirectories :(bool)treatPackagesAsDirectories :(bool)resolveAliases :(bool)showHiddenFiles :(bool)allowMultipleSelection :(const char*)filters {
+    
+    
+    // Create the dialog
+    NSOpenPanel *dialog = [NSOpenPanel openPanel];
+
+    // Valid but appears to do nothing.... :/
+    if( strlen(title) > 0 ) {
+        [dialog setTitle:[NSString stringWithUTF8String:title]];
+    }
+
+    // Filters - semicolon delimited list of file extensions
+    if( allowFiles ) {
+        if( filters != nil && strlen(filters) > 0) {
+            NSString *filterString = [[NSString stringWithUTF8String:filters] stringByReplacingOccurrencesOfString:@"*." withString:@""];
+            filterString = [filterString stringByReplacingOccurrencesOfString:@" " withString:@""];
+            NSArray *filterList = [filterString componentsSeparatedByString:@";"];
+            [dialog setAllowedFileTypes:filterList];
+        } else {
+            [dialog setAllowsOtherFileTypes:true];
+        }
+        // Default Filename
+        if( defaultFilename != NULL && strlen(defaultFilename) > 0 ) {
+            [dialog setNameFieldStringValue:[NSString stringWithUTF8String:defaultFilename]];
+        }
+        
+        [dialog setAllowsMultipleSelection: allowMultipleSelection];
+        [dialog setShowsHiddenFiles: showHiddenFiles];
+
+    }
+
+    // Default Directory
+    if( defaultDirectory != NULL && strlen(defaultDirectory) > 0 ) {
+        NSURL *url = [NSURL fileURLWithPath:[NSString stringWithUTF8String:defaultDirectory]];
+        [dialog setDirectoryURL:url];
+    }
+
+
+    // Setup Options
+    [dialog setCanChooseFiles: allowFiles];
+    [dialog setCanChooseDirectories: allowDirectories];
+    [dialog setCanCreateDirectories: canCreateDirectories];
+    [dialog setResolvesAliases: resolveAliases];
+    [dialog setTreatsFilePackagesAsDirectories: treatPackagesAsDirectories];
+
+    // Setup callback handler
+    [dialog beginSheetModalForWindow:self.mainWindow completionHandler:^(NSModalResponse returnCode) {
+        NSMutableArray *arr = [NSMutableArray new];
+        for (NSURL *url in [dialog URLs]) {
+            [arr addObject:[url path]];
+        }
+        NSData *jsonData = [NSJSONSerialization dataWithJSONObject:arr options:0 error:nil];
+        NSString *nsjson = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
+        processOpenFileDialogResponse([nsjson UTF8String]);
+    }];
+    
+
+    [dialog runModal];
+    
+}
+
+
+-(void) SaveFileDialog :(const char*)title :(const char*)defaultFilename :(const char*)defaultDirectory :(bool)canCreateDirectories :(bool)treatPackagesAsDirectories :(bool)showHiddenFiles :(const char*)filters; {
+    
+    
+    // Create the dialog
+    NSSavePanel *dialog = [NSOpenPanel savePanel];
+
+    // Valid but appears to do nothing.... :/
+    if( strlen(title) > 0 ) {
+        [dialog setTitle:[NSString stringWithUTF8String:title]];
+    }
+
+    // Filters - semicolon delimited list of file extensions
+    if( filters != nil && strlen(filters) > 0) {
+        NSString *filterString = [[NSString stringWithUTF8String:filters] stringByReplacingOccurrencesOfString:@"*." withString:@""];
+        filterString = [filterString stringByReplacingOccurrencesOfString:@" " withString:@""];
+        NSArray *filterList = [filterString componentsSeparatedByString:@";"];
+        [dialog setAllowedFileTypes:filterList];
+    } else {
+        [dialog setAllowsOtherFileTypes:true];
+    }
+    // Default Filename
+    if( defaultFilename != NULL && strlen(defaultFilename) > 0 ) {
+        [dialog setNameFieldStringValue:[NSString stringWithUTF8String:defaultFilename]];
+    }
+    
+    // Default Directory
+    if( defaultDirectory != NULL && strlen(defaultDirectory) > 0 ) {
+        NSURL *url = [NSURL fileURLWithPath:[NSString stringWithUTF8String:defaultDirectory]];
+        [dialog setDirectoryURL:url];
+    }
+
+    // Setup Options
+    [dialog setCanCreateDirectories: canCreateDirectories];
+    [dialog setTreatsFilePackagesAsDirectories: treatPackagesAsDirectories];
+    [dialog setShowsHiddenFiles: showHiddenFiles];
+
+    // Setup callback handler
+    [dialog beginSheetModalForWindow:self.mainWindow completionHandler:^(NSModalResponse returnCode) {
+        NSURL *url = [dialog URL];
+        processSaveFileDialogResponse([url.path UTF8String]);
+    }];
+    
+    [dialog runModal];
+    
+}
+
+
 @end
 

v2/internal/frontend/desktop/darwin/calloc.go

@@ -0,0 +1,32 @@
+package darwin
+
+/*
+#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{}
+}

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

@@ -3,31 +3,183 @@
 
 package darwin
 
+/*
+#cgo CFLAGS: -x objective-c
+#cgo LDFLAGS: -framework Foundation -framework Cocoa -framework WebKit
+#import <Foundation/Foundation.h>
+#import "Application.h"
+#import "WailsContext.h"
+*/
+import "C"
 import (
+	"encoding/json"
+	"fmt"
+	"strings"
+	"sync"
+
+	"github.com/leaanthony/slicer"
 	"github.com/wailsapp/wails/v2/internal/frontend"
 )
 
+// Obj-C dialog methods send the response to this channel
+var messageDialogResponse = make(chan int)
+var openFileDialogResponse = make(chan string)
+var saveFileDialogResponse = make(chan string)
+var dialogLock sync.Mutex
+
 // OpenDirectoryDialog prompts the user to select a directory
 func (f *Frontend) OpenDirectoryDialog(options frontend.OpenDialogOptions) (string, error) {
-	return "", nil
+	results, err := f.openDialog(&options, false, false, true)
+	if err != nil {
+		return "", err
+	}
+	var selected string
+	if len(results) > 0 {
+		selected = results[0]
+	}
+	return selected, nil
+}
+
+func (f *Frontend) openDialog(options *frontend.OpenDialogOptions, multiple bool, allowfiles bool, allowdirectories bool) ([]string, error) {
+	dialogLock.Lock()
+	defer dialogLock.Unlock()
+
+	c := NewCalloc()
+	defer c.Free()
+	title := c.String(options.Title)
+	defaultFilename := c.String(options.DefaultFilename)
+	defaultDirectory := c.String(options.DefaultDirectory)
+	allowDirectories := bool2Cint(allowdirectories)
+	allowFiles := bool2Cint(allowfiles)
+	canCreateDirectories := bool2Cint(options.CanCreateDirectories)
+	treatPackagesAsDirectories := bool2Cint(options.TreatPackagesAsDirectories)
+	resolveAliases := bool2Cint(options.ResolvesAliases)
+	showHiddenFiles := bool2Cint(options.ShowHiddenFiles)
+	allowMultipleFileSelection := bool2Cint(multiple)
+
+	var filterStrings slicer.StringSlicer
+	if options.Filters != nil {
+		for _, filter := range options.Filters {
+			thesePatterns := strings.Split(filter.Pattern, ";")
+			for _, pattern := range thesePatterns {
+				pattern = strings.TrimSpace(pattern)
+				if pattern != "" {
+					filterStrings.Add(pattern)
+				}
+			}
+		}
+		filterStrings.Deduplicate()
+	}
+	filters := filterStrings.Join(";")
+	C.OpenFileDialog(f.mainWindow.context, title, defaultFilename, defaultDirectory, allowDirectories, allowFiles, canCreateDirectories, treatPackagesAsDirectories, resolveAliases, showHiddenFiles, allowMultipleFileSelection, c.String(filters))
+
+	var result = <-openFileDialogResponse
+
+	var parsedResults []string
+	err := json.Unmarshal([]byte(result), &parsedResults)
+
+	return parsedResults, err
 }
 
 // OpenFileDialog prompts the user to select a file
 func (f *Frontend) OpenFileDialog(options frontend.OpenDialogOptions) (string, error) {
-	return "", nil
+	results, err := f.openDialog(&options, false, options.AllowFiles, options.AllowDirectories)
+	if err != nil {
+		return "", err
+	}
+	var selected string
+	if len(results) > 0 {
+		selected = results[0]
+	}
+	return selected, nil
 }
 
 // OpenMultipleFilesDialog prompts the user to select a file
-func (f *Frontend) OpenMultipleFilesDialog(dialogOptions frontend.OpenDialogOptions) ([]string, error) {
+func (f *Frontend) OpenMultipleFilesDialog(options frontend.OpenDialogOptions) ([]string, error) {
-	return []string{}, nil
+	return f.openDialog(&options, true, options.AllowFiles, options.AllowDirectories)
 }
 
 // SaveFileDialog prompts the user to select a file
-func (f *Frontend) SaveFileDialog(dialogOptions frontend.SaveDialogOptions) (string, error) {
+func (f *Frontend) SaveFileDialog(options frontend.SaveDialogOptions) (string, error) {
-	return "", nil
+	dialogLock.Lock()
+	defer dialogLock.Unlock()
+
+	c := NewCalloc()
+	defer c.Free()
+	title := c.String(options.Title)
+	defaultFilename := c.String(options.DefaultFilename)
+	defaultDirectory := c.String(options.DefaultDirectory)
+	canCreateDirectories := bool2Cint(options.CanCreateDirectories)
+	treatPackagesAsDirectories := bool2Cint(options.TreatPackagesAsDirectories)
+	showHiddenFiles := bool2Cint(options.ShowHiddenFiles)
+
+	var filterStrings slicer.StringSlicer
+	if options.Filters != nil {
+		for _, filter := range options.Filters {
+			thesePatterns := strings.Split(filter.Pattern, ";")
+			for _, pattern := range thesePatterns {
+				pattern = strings.TrimSpace(pattern)
+				if pattern != "" {
+					filterStrings.Add(pattern)
+				}
+			}
+		}
+		filterStrings.Deduplicate()
+	}
+	filters := filterStrings.Join(";")
+	C.SaveFileDialog(f.mainWindow.context, title, defaultFilename, defaultDirectory, canCreateDirectories, treatPackagesAsDirectories, showHiddenFiles, c.String(filters))
+
+	var result = <-saveFileDialogResponse
+
+	return result, nil
 }
 
 // MessageDialog show a message dialog to the user
 func (f *Frontend) MessageDialog(options frontend.MessageDialogOptions) (string, error) {
-	return "", nil
+	dialogLock.Lock()
+	defer dialogLock.Unlock()
+
+	c := NewCalloc()
+	defer c.Free()
+	dialogType := c.String(string(options.Type))
+	title := c.String(options.Title)
+	message := c.String(options.Message)
+	defaultButton := c.String(options.DefaultButton)
+	cancelButton := c.String(options.CancelButton)
+	const MaxButtons = 4
+	var buttons [MaxButtons]*C.char
+	for index, buttonText := range options.Buttons {
+		if index == MaxButtons {
+			return "", fmt.Errorf("max %d buttons supported (%d given)", MaxButtons, len(options.Buttons))
+		}
+		buttons[index] = c.String(buttonText)
+	}
+
+	C.MessageDialog(f.mainWindow.context, dialogType, title, message, buttons[0], buttons[1], buttons[2], buttons[3], defaultButton, cancelButton)
+
+	var result = <-messageDialogResponse
+
+	selectedC := buttons[result]
+	var selected string
+	if selectedC != nil {
+		selected = options.Buttons[result]
+	}
+	return selected, nil
+}
+
+//export processMessageDialogResponse
+func processMessageDialogResponse(selection int) {
+	messageDialogResponse <- selection
+}
+
+//export processOpenFileDialogResponse
+func processOpenFileDialogResponse(cselection *C.char) {
+	selection := C.GoString(cselection)
+	openFileDialogResponse <- selection
+}
+
+//export processSaveFileDialogResponse
+func processSaveFileDialogResponse(cselection *C.char) {
+	selection := C.GoString(cselection)
+	saveFileDialogResponse <- selection
 }

v2/internal/frontend/desktop/darwin/main.m

@@ -0,0 +1,56 @@
+//go:build ignore
+//  main.m
+//  test
+//
+//  Created by Lea Anthony on 10/10/21.
+//
+
+// ****** This file is used for testing purposes only ******
+
+#import <Foundation/Foundation.h>
+#import "Application.h"
+
+void processMessage(const char*t) {
+    NSLog(@"processMessage called");
+
+}
+
+void processMessageDialogResponse(int t) {
+    NSLog(@"processMessage called");
+}
+
+void processOpenFileDialogResponse(const char *t) {
+    NSLog(@"processMessage called %s", t);
+}
+
+void processURLRequest(void *ctx, const char* url) {
+    NSLog(@"processURLRequest called");
+    const char myByteArray[] = { 0x3c,0x68,0x31,0x3e,0x48,0x65,0x6c,0x6c,0x6f,0x20,0x57,0x6f,0x72,0x6c,0x64,0x21,0x3c,0x2f,0x68,0x31,0x3e };
+    ProcessURLResponse(ctx, url, "text/html", myByteArray, 21);
+}
+
+int main(int argc, const char * argv[]) {
+    // insert code here...
+    int frameless = 0;
+    int resizable = 1;
+    int fullscreen = 0;
+    int fullSizeContent = 1;
+    int hideTitleBar = 0;
+    int titlebarAppearsTransparent = 1;
+    int hideTitle = 0;
+    int useToolbar = 1;
+    int hideToolbarSeparator = 1;
+    int webviewIsTransparent = 0;
+    int alwaysOnTop = 1;
+    int hideWindowOnClose = 0;
+    const char* appearance = "NSAppearanceNameDarkAqua";
+    int windowIsTranslucent = 1;
+    int debug = 1;
+    WailsContext *result = Create("OI OI!",400,400, frameless,  resizable, fullscreen, fullSizeContent, hideTitleBar, titlebarAppearsTransparent, hideTitle, useToolbar, hideToolbarSeparator, webviewIsTransparent, alwaysOnTop, hideWindowOnClose, appearance, windowIsTranslucent, debug);
+    SetRGBA(result, 255, 0, 0, 255);
+    
+    
+    
+    Run((void*)CFBridgingRetain(result));
+    return 0;
+}

v2/internal/frontend/desktop/darwin/message.h

@@ -16,6 +16,9 @@ extern "C"
 
 void processMessage(const char *);
 void processURLRequest(void*, const char *);
+void processMessageDialogResponse(int);
+void processOpenFileDialogResponse(const char*);
+void processSaveFileDialogResponse(const char*);
 
 #ifdef __cplusplus
 }

v2/internal/frontend/desktop/darwin/window.go

@@ -37,6 +37,9 @@ func bool2Cint(value bool) C.int {
 
 func NewWindow(frontendOptions *options.App, debugMode bool) *Window {
 
+	c := NewCalloc()
+	defer c.Free()
+
 	frameless := bool2Cint(frontendOptions.Frameless)
 	resizable := bool2Cint(!frontendOptions.DisableResize)
 	fullscreen := bool2Cint(frontendOptions.Fullscreen)
@@ -55,7 +58,7 @@ func NewWindow(frontendOptions *options.App, debugMode bool) *Window {
 	width := C.int(frontendOptions.Width)
 	height := C.int(frontendOptions.Height)
 
-	title = C.CString(frontendOptions.Title)
+	title = c.String(frontendOptions.Title)
 
 	if frontendOptions.Mac != nil {
 		mac := frontendOptions.Mac
@@ -70,15 +73,10 @@ func NewWindow(frontendOptions *options.App, debugMode bool) *Window {
 		windowIsTranslucent = bool2Cint(mac.WindowIsTranslucent)
 		webviewIsTransparent = bool2Cint(mac.WebviewIsTransparent)
 
-		appearance = C.CString(string(mac.Appearance))
+		appearance = c.String(string(mac.Appearance))
 	}
 	var context *C.WailsContext = C.Create(title, width, height, frameless, resizable, fullscreen, fullSizeContent, hideTitleBar, titlebarAppearsTransparent, hideTitle, useToolbar, hideToolbarSeparator, webviewIsTransparent, alwaysOnTop, hideWindowOnClose, appearance, windowIsTranslucent, debug)
 
-	C.free(unsafe.Pointer(title))
-	if appearance != nil {
-		C.free(unsafe.Pointer(appearance))
-	}
-
 	C.SetRGBA(unsafe.Pointer(context), red, green, blue, alpha)
 
 	return &Window{

website/docs/reference/runtime/dialog.mdx

@@ -6,50 +6,59 @@ sidebar_position: 5
 
 ## Overview
 
-This part of the runtime provides access to native dialogs, such as File Selectors and Message boxes.Context
+This part of the runtime provides access to native dialogs, such as File Selectors and Message boxes.
 
 :::info Javascript
   Dialog is currently unsupported in the JS runtime.
 :::
 
 ### OpenDirectoryDialog
+
+Opens a dialog that prompts the user to select a directory. Can be customised using [OpenDialogOptions](#opendialogoptions).
+
 Go Signature: `OpenDirectoryDialog(ctx context.Context, dialogOptions OpenDialogOptions) (string, error)`
 
 Returns: Selected directory (blank if the user cancelled) or an error
 
-Opens a dialog that prompts the user to select a directory. Can be customised using [OpenDialogOptions](#OpenDialogOptions).
 
 ### OpenFileDialog
+
+Opens a dialog that prompts the user to select a file. Can be customised using [OpenDialogOptions](#opendialogoptions).
+
 Go Signature: `OpenFileDialog(ctx context.Context, dialogOptions OpenDialogOptions) (string, error)`
 
 Returns: Selected file (blank if the user cancelled) or an error
 
-Opens a dialog that prompts the user to select a file. Can be customised using [OpenDialogOptions](#OpenDialogOptions).
 
 
 ### OpenMultipleFilesDialog
+
+Opens a dialog that prompts the user to select multiple files. Can be customised using [OpenDialogOptions](#opendialogoptions).
+
 Go Signature: `OpenMultipleFilesDialog(ctx context.Context, dialogOptions OpenDialogOptions) ([]string, error)`
 
 Returns: Selected files (nil if the user cancelled) or an error
 
-Opens a dialog that prompts the user to select multiple files. Can be customised using [OpenDialogOptions](#OpenDialogOptions).
 
 
 ### SaveFileDialog
+
+Opens a dialog that prompts the user to select a filename for the purposes of saving. Can be customised using [SaveDialogOptions](#savedialogoptions).
+
 Go Signature: `SaveFileDialog(ctx context.Context, dialogOptions SaveDialogOptions) (string, error)`
 
 Returns: The selected file (blank if the user cancelled) or an error
 
-Opens a dialog that prompts the user to select a filename for the purposes of saving. Can be customised using [SaveDialogOptions](#SaveDialogOptions).
 
 
 ### MessageDialog
+
+Displays a message using a message dialog. Can be customised using [MessageDialogOptions](#messagedialogoptions).
+
 Go Signature: `MessageDialog(ctx context.Context, dialogOptions MessageDialogOptions) (string, error)`
 
 Returns: The text of the selected button or an error
 
-Displays a message using a message dialog. Can be customised using [MessageDialogOptions](#MessageDialogOptions).
-
 ## Options
 
 ### OpenDialogOptions
@@ -60,14 +69,27 @@ type OpenDialogOptions struct {
 	DefaultFilename            string
 	Title                      string
 	Filters                    []FileFilter
-	AllowFiles                 bool // Mac Only
+	AllowFiles                 bool
-	AllowDirectories           bool // Mac Only
+	AllowDirectories           bool
-	ShowHiddenFiles            bool // Mac Only
+	ShowHiddenFiles            bool
-	CanCreateDirectories       bool // Mac Only
+	CanCreateDirectories       bool
-	ResolvesAliases            bool // Mac Only
+	ResolvesAliases            bool
-	TreatPackagesAsDirectories bool // Mac Only
+	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                         | ✅  | ✅  |
+| AllowFiles                 | Allow files to be selected                     |     | ✅  |
+| AllowDirectories           | Allow directories to be selected               |     | ✅  |
+| 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
 
@@ -77,12 +99,22 @@ type SaveDialogOptions struct {
 	DefaultFilename            string
 	Title                      string
 	Filters                    []FileFilter
-	ShowHiddenFiles            bool // Mac Only
+	ShowHiddenFiles            bool
-	CanCreateDirectories       bool // Mac Only
+	CanCreateDirectories       bool
-	TreatPackagesAsDirectories bool // Mac Only
+	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               |     | ✅  |
+| TreatPackagesAsDirectories | Allow navigating into packages                 |     | ✅  |
+
 ### MessageDialogOptions
 
 ```go
@@ -91,33 +123,76 @@ type MessageDialogOptions struct {
 	Title         string
 	Message       string
 	Buttons       []string
-	DefaultButton string // Mac Only
+	DefaultButton string
-	CancelButton  string // Mac Only
+	CancelButton  string
-	Icon          string // Mac Only
 }
 ```
+| 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`  |     | ✅  |
 
-import Tabs from '@theme/Tabs';
+#### Windows
-import TabItem from '@theme/TabItem';
+
+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"
+
+#### Mac
+
+A message dialog on Mac may specify up to 4 buttons. If no `DefaultButton` or `CancelButton` is given, the first button
+is considered default and is bound to the `return` key.
+
+For the following code:
+```go
+selection, err := runtime.MessageDialog(b.ctx, runtime.MessageDialogOptions{
+    Title:        "It's your turn!",
+    Message:      "Select a number",
+    Buttons:      []string{"one", "two", "three", "four"},
+})
+```
+the first button is shown as default:
+<div class="text--center">
+    <img src="/img/runtime/dialog_no_defaults.png" width="30%" style={{"box-shadow": "rgb(255 255 255 / 20%) 0px 4px 8px 0px, rgb(104 104 104) 0px 6px 20px 0px"}}/>
+</div>
+<br/>
+
+And if we specify `DefaultButton` to be "two":
+```go
+selection, err := runtime.MessageDialog(b.ctx, runtime.MessageDialogOptions{
+    Title:         "It's your turn!",
+    Message:       "Select a number",
+    Buttons:       []string{"one", "two", "three", "four"},
+    DefaultButton: "two",
+})
+```
+the second button is shown as default. When `return` is pressed, the value "two" is returned.
+<div class="text--center">
+    <img src="/img/runtime/dialog_default_button.png" width="30%" style={{"box-shadow": "rgb(255 255 255 / 20%) 0px 4px 8px 0px, rgb(104 104 104) 0px 6px 20px 0px"}}/>
+</div>
+<br/>
+
+If we now specify `CancelButton` to be "three":
+```go
+selection, err := runtime.MessageDialog(b.ctx, runtime.MessageDialogOptions{
+    Title:         "It's your turn!",
+    Message:       "Select a number",
+    Buttons:       []string{"one", "two", "three", "four"},
+    DefaultButton: "two",
+    CancelButton:  "three",
+})
+```
+the button with "three" is shown at the bottom of the dialog. When `escape` is pressed, the value "three" is returned:
+<div class="text--center">
+    <img src="/img/runtime/dialog_default_cancel.png" width="30%" style={{"box-shadow": "rgb(255 255 255 / 20%) 0px 4px 8px 0px, rgb(104 104 104) 0px 6px 20px 0px"}}/>
+</div>
+<br/>
+<br/>
+<br/>
 
-<Tabs
-  defaultValue="Windows"
-  values={[
-    {label: 'Windows', value: 'Windows'},
-    {label: 'MacOS', value: 'MacOS'},
-    {label: 'Linux', value: 'Linux'},
-  ]}>
-  <TabItem value="MacOS">
-    Both "DefaultButton" and "CancelButton" should match a value in "Buttons".
-  </TabItem>
-  <TabItem value="Windows">
-    Windows has standard dialog types and the buttons are not customisable. The
-    value returned will be one of: "Ok", "Cancel", "Abort", "Retry", "Ignore", "Yes", "No", "Try Again" or "Continue"
-  </TabItem>
-  <TabItem value="Linux">
-    Coming Soon...
-  </TabItem>
-</Tabs>
 
 #### DialogType
 
@@ -138,3 +213,30 @@ type FileFilter struct {
 	Pattern     string // semi-colon separated list of extensions, EG: "*.jpg;*.png"
 }
 ```
+
+#### Windows
+
+Windows allows you to use multiple file filters in dialog boxes. Each FileFilter will show up as a separate entry in the
+dialog.
+
+#### Mac
+
+Mac dialogs only have the concept of a single set of patterns to filter files. If multiple FileFilters are provided,
+Wails will use all the Patterns defined.
+
+Example:
+```go
+	selection, err := runtime.OpenFileDialog(b.ctx, runtime.OpenDialogOptions{
+		Title: "Select File",
+		Filters: []runtime.FileFilter{
+			{
+				DisplayName: "Images (*.png;*.jpg)",
+				Pattern:     "*.png;*.jpg",
+			}, {
+				DisplayName: "Videos (*.mov;*.mp4)",
+				Pattern:     "*.mov;*.mp4",
+			},
+		},
+	})
+```
+This will result in the Open File dialog using `*.png,*.jpg,*.mov,*.mp4` as a filter.