@ -1,9 +1,73 @@
#include "common.h"
#include "AvnString.h"
#include "INSWindowHolder.h"
#import <UniformTypeIdentifiers/UniformTypeIdentifiers.h>
const int kFileTypePopupTag = 10975;
// Target for NSPopupButton control in file dialog's accessory view.
// ExtensionDropdownHandler is copied from Chromium MIT code of select_file_dialog_bridge
@interface ExtensionDropdownHandler : NSObject {
@private
// The file dialog to which this target object corresponds. Weak reference
// since the dialog_ will stay alive longer than this object.
NSSavePanel* _dialog;
// Two ivars serving the same purpose. While `_fileTypeLists` is for pre-macOS
// 11, and contains NSStrings with UTType identifiers, `_fileUTTypeLists` is
// for macOS 11 and later, and contains UTTypes.
NSArray<NSArray<NSString*>*>* __strong _fileTypeLists;
NSArray<NSArray<UTType*>*>* __strong _fileUTTypeLists
API_AVAILABLE(macos(11.0));
}
- (instancetype)initWithDialog:(NSSavePanel*)dialog
fileTypeLists:(NSArray<NSArray<NSString*>*>*)fileTypeLists;
- (instancetype)initWithDialog:(NSSavePanel*)dialog
fileUTTypeLists:(NSArray<NSArray<UTType*>*>*)fileUTTypeLists
API_AVAILABLE(macos(11.0));
- (void)popupAction:(id)sender;
@end
@implementation ExtensionDropdownHandler
- (instancetype)initWithDialog:(NSSavePanel*)dialog
fileTypeLists:(NSArray<NSArray<NSString*>*>*)fileTypeLists {
if ((self = [super init])) {
_dialog = dialog;
_fileTypeLists = fileTypeLists;
}
return self;
}
- (instancetype)initWithDialog:(NSSavePanel*)dialog
fileUTTypeLists:(NSArray<NSArray<UTType*>*>*)fileUTTypeLists
API_AVAILABLE(macos(11.0)) {
if ((self = [super init])) {
_dialog = dialog;
_fileUTTypeLists = fileUTTypeLists;
}
return self;
}
- (void)popupAction:(id)sender {
NSUInteger index = [sender indexOfSelectedItem];
if (@available(macOS 11, *)) {
_dialog.allowedContentTypes = [_fileUTTypeLists objectAtIndex:index];
} else {
_dialog.allowedFileTypes = [_fileTypeLists objectAtIndex:index];
}
}
@end
class SystemDialogs : public ComSingleObject<IAvnSystemDialogs, &IID_IAvnSystemDialogs>
{
ExtensionDropdownHandler* __strong _extension_dropdown_handler;
public:
FORWARD_IUNKNOWN()
virtual void SelectFolderDialog (IAvnWindow* parentWindowHandle,
@ -88,7 +152,7 @@ public:
const char* title,
const char* initialDirectory,
const char* initialFile,
const char * filters) override
IAvnFilePickerFileTypes * filters) override
{
@autoreleasepool
{
@ -113,25 +177,7 @@ public:
panel.nameFieldStringValue = [NSString stringWithUTF8String:initialFile];
}
if(filters != nullptr)
{
auto filtersString = [NSString stringWithUTF8String:filters];
if(filtersString.length > 0)
{
auto allowedTypes = [filtersString componentsSeparatedByString:@";"];
// Prefer allowedContentTypes if available
if (@available(macOS 11.0, *))
{
panel.allowedContentTypes = ConvertToUTType(allowedTypes);
}
else
{
panel.allowedFileTypes = allowedTypes;
}
}
}
SetAccessoryView(panel, filters, false);
auto handler = ^(NSModalResponse result) {
if(result == NSFileHandlingPanelOKButton)
@ -187,7 +233,7 @@ public:
const char* title,
const char* initialDirectory,
const char* initialFile,
const char * filters) override
IAvnFilePickerFileTypes * filters) override
{
@autoreleasepool
{
@ -210,28 +256,7 @@ public:
panel.nameFieldStringValue = [NSString stringWithUTF8String:initialFile];
}
if(filters != nullptr)
{
auto filtersString = [NSString stringWithUTF8String:filters];
if(filtersString.length > 0)
{
auto allowedTypes = [filtersString componentsSeparatedByString:@";"];
// Prefer allowedContentTypes if available
if (@available(macOS 11.0, *))
{
panel.allowedContentTypes = ConvertToUTType(allowedTypes);
}
else
{
panel.allowedFileTypes = allowedTypes;
}
panel.allowsOtherFileTypes = false;
panel.extensionHidden = false;
}
}
SetAccessoryView(panel, filters, true);
auto handler = ^(NSModalResponse result) {
if(result == NSFileHandlingPanelOKButton)
@ -240,9 +265,9 @@ public:
auto url = [panel URL];
auto string = [url path];
auto string = [url path];
strings[0] = (void*)[string UTF8String];
events->OnCompleted(1, &strings[0]);
[panel orderOut:panel];
@ -274,31 +299,221 @@ public:
}
private:
NSMutableArray* ConvertToUTType(NSArray<NSString*>* allowedTypes)
NSView* CreateAccessoryView() {
// The label. Add attributes per-OS to match the labels that macOS uses.
NSTextField* label = [NSTextField labelWithString:@"File format"];
label.translatesAutoresizingMaskIntoConstraints = NO;
label.textColor = NSColor.secondaryLabelColor;
if (@available(macOS 11.0, *)) {
label.font = [NSFont systemFontOfSize:[NSFont smallSystemFontSize]];
}
// The popup.
NSPopUpButton* popup = [[NSPopUpButton alloc] initWithFrame:NSZeroRect
pullsDown:NO];
popup.translatesAutoresizingMaskIntoConstraints = NO;
popup.tag = kFileTypePopupTag;
[popup setAutoenablesItems:NO];
// A view to group the label and popup together. The top-level view used as
// the accessory view will be stretched horizontally to match the width of
// the dialog, and the label and popup need to be grouped together as one
// view to do centering within it, so use a view to group the label and
// popup.
NSView* group = [[NSView alloc] initWithFrame:NSZeroRect];
group.translatesAutoresizingMaskIntoConstraints = NO;
[group addSubview:label];
[group addSubview:popup];
// This top-level view will be forced by the system to have the width of the
// save dialog.
NSView* view = [[NSView alloc] initWithFrame:NSZeroRect];
view.translatesAutoresizingMaskIntoConstraints = NO;
[view addSubview:group];
NSMutableArray* constraints = [NSMutableArray array];
// The required constraints for the group, instantiated top-to-bottom:
// ┌───────────────────┐
// │ ↕︎ │
// │ ↔︎ label ↔︎ popup ↔︎ │
// │ ↕︎ │
// └───────────────────┘
// Top.
[constraints
addObject:[popup.topAnchor constraintEqualToAnchor:group.topAnchor
constant:10]];
// Leading.
[constraints
addObject:[label.leadingAnchor constraintEqualToAnchor:group.leadingAnchor
constant:10]];
// Horizontal and vertical baseline between the label and popup.
CGFloat labelPopupPadding;
if (@available(macOS 11.0, *)) {
labelPopupPadding = 8;
} else {
labelPopupPadding = 5;
}
[constraints addObject:[popup.leadingAnchor
constraintEqualToAnchor:label.trailingAnchor
constant:labelPopupPadding]];
[constraints
addObject:[popup.firstBaselineAnchor
constraintEqualToAnchor:label.firstBaselineAnchor]];
// Trailing.
[constraints addObject:[group.trailingAnchor
constraintEqualToAnchor:popup.trailingAnchor
constant:10]];
// Bottom.
[constraints
addObject:[group.bottomAnchor constraintEqualToAnchor:popup.bottomAnchor
constant:10]];
// Then the constraints centering the group in the accessory view. Vertical
// spacing is fully specified, but as the horizontal size of the accessory
// view will be forced to conform to the save dialog, only specify horizontal
// centering.
// ┌──────────────┐
// │ ↕︎ │
// │ ↔group↔︎ │
// │ ↕︎ │
// └──────────────┘
// Top.
[constraints
addObject:[group.topAnchor constraintEqualToAnchor:view.topAnchor]];
// Centering.
[constraints addObject:[group.centerXAnchor
constraintEqualToAnchor:view.centerXAnchor]];
// Bottom.
[constraints
addObject:[view.bottomAnchor constraintEqualToAnchor:group.bottomAnchor]];
[NSLayoutConstraint activateConstraints:constraints];
return view;
}
void SetAccessoryView(NSSavePanel* panel,
IAvnFilePickerFileTypes* filters,
bool is_save_panel)
{
auto originalCount = [allowedTypes count];
auto mapped = [[NSMutableArray alloc] init];
NSView* accessory_view = CreateAccessoryView();
NSPopUpButton* popup = [accessory_view viewWithTag:kFileTypePopupTag];
if (@available(macOS 11.0, *))
NSMutableArray<NSArray<NSString*>*>* file_type_lists = [NSMutableArray array];
NSMutableArray* file_uttype_lists = [NSMutableArray array];
int default_extension_index = -1;
for (int i = 0; i < filters->GetCount(); i++)
{
for (int i = 0; i < originalCount; i++)
{
auto utTypeStr = allowedTypes[i];
auto utType = [UTType typeWithIdentifier:utTypeStr];
if (utType == nil)
{
utType = [UTType typeWithMIMEType:utTypeStr];
NSString* type_description = GetNSStringAndRelease(filters->GetName(i));
[popup addItemWithTitle:type_description];
// If any type is included, enable allowsOtherFileTypes, and skip this filter on save panel.
if (filters->IsAnyType(i)) {
panel.allowsOtherFileTypes = YES;
}
// If default extension is specified, auto select it later.
if (filters->IsDefaultType(i)) {
default_extension_index = i;
}
IAvnStringArray* array;
// Prefer types priority of: file ext -> apple type id -> mime.
// On macOS 10 we only support file extensions.
if (@available(macOS 11, *)) {
NSMutableArray* file_uttype_array = [NSMutableArray array];
bool typeCompleted = false;
if (filters->IsAnyType(i)) {
UTType* type = [UTType typeWithIdentifier:@"public.item"];
[file_uttype_array addObject:type];
typeCompleted = true;
}
if (utType != nil)
{
[mapped addObject:utType];
if (!typeCompleted && filters->GetExtensions(i, &array) == 0) {
for (NSString* ext in GetNSArrayOfStringsAndRelease(array))
{
UTType* type = [UTType typeWithFilenameExtension:ext];
if (type && ![file_uttype_array containsObject:type]) {
[file_uttype_array addObject:type];
typeCompleted = true;
}
}
}
if (!typeCompleted && filters->GetAppleUniformTypeIdentifiers(i, &array) == 0) {
for (NSString* ext in GetNSArrayOfStringsAndRelease(array))
{
UTType* type = [UTType typeWithIdentifier:ext];
if (type && ![file_uttype_array containsObject:type]) {
[file_uttype_array addObject:type];
typeCompleted = true;
}
}
}
if (!typeCompleted && filters->GetMimeTypes(i, &array) == 0) {
for (NSString* ext in GetNSArrayOfStringsAndRelease(array))
{
UTType* type = [UTType typeWithMIMEType:ext];
if (type && ![file_uttype_array containsObject:type]) {
[file_uttype_array addObject:type];
typeCompleted = true;
}
}
}
[file_uttype_lists addObject:file_uttype_array];
} else {
NSMutableArray<NSString*>* file_type_array = [NSMutableArray array];
if (filters->IsAnyType(i)) {
[file_type_array addObject:@"*.*"];
}
else if (filters->GetExtensions(i, &array) == 0) {
for (NSString* ext in GetNSArrayOfStringsAndRelease(array))
{
if (![file_type_array containsObject:ext]) {
[file_type_array addObject:ext];
}
}
}
[file_type_lists addObject:file_type_array];
}
}
if ([file_uttype_lists count] == 0 && [file_type_lists count] == 0)
return;
return mapped;
}
if (@available(macOS 11, *))
_extension_dropdown_handler = [[ExtensionDropdownHandler alloc] initWithDialog:panel
fileUTTypeLists:file_uttype_lists];
else
_extension_dropdown_handler = [[ExtensionDropdownHandler alloc] initWithDialog:panel
fileTypeLists:file_type_lists];
[popup setTarget: _extension_dropdown_handler];
[popup setAction: @selector(popupAction:)];
if (default_extension_index != -1) {
[popup selectItemAtIndex:default_extension_index];
} else {
// Select the first item.
[popup selectItemAtIndex:0];
}
[_extension_dropdown_handler popupAction:popup];
if (popup.numberOfItems > 0) {
panel.accessoryView = accessory_view;
}
};
};
extern IAvnSystemDialogs* CreateSystemDialogs()
Max Katz
2 years ago
GitHub