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System File Chooser: support "approve" callback and system message dialog on Windows and Linux (not yet used in SystemFileChooser

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This commit is contained in:
Karl Tauber
2025-01-11 17:50:46 +01:00
parent c73fd51704
commit d49282dfe8
12 changed files with 335 additions and 25 deletions
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4
flatlaf-natives/flatlaf-natives-windows/build.gradle.kts
View File

@@ -64,7 +64,7 @@ tasks {
compilerArgs.addAll( toolChain.map {
when( it ) {
is Gcc, is Clang -> listOf( "-O2", "-DUNICODE" )
is VisualCpp -> listOf( "/O2", "/Zl", "/GS-", "/DUNICODE" )
is VisualCpp -> listOf( "/O2", "/GS-", "/DUNICODE" )
else -> emptyList()
}
} )
@@ -81,7 +81,7 @@ tasks {
linkerArgs.addAll( toolChain.map {
when( it ) {
is Gcc, is Clang -> listOf( "-lUser32", "-lGdi32", "-lshell32", "-lAdvAPI32", "-lKernel32", "-lDwmapi", "-lOle32", "-luuid" )
is VisualCpp -> listOf( "User32.lib", "Gdi32.lib", "shell32.lib", "AdvAPI32.lib", "Kernel32.lib", "Dwmapi.lib", "Ole32.lib", "uuid.lib", "/NODEFAULTLIB" )
is VisualCpp -> listOf( "User32.lib", "Gdi32.lib", "shell32.lib", "AdvAPI32.lib", "Kernel32.lib", "Dwmapi.lib", "Ole32.lib", "uuid.lib" )
else -> emptyList()
}
} )

115
flatlaf-natives/flatlaf-natives-windows/src/main/cpp/WinFileChooser.cpp
View File

@@ -29,6 +29,9 @@
// declare external methods
extern HWND getWindowHandle( JNIEnv* env, jobject window );
// declare internal methods
static jobjectArray getFiles( JNIEnv* env, jboolean open, IFileDialog* dialog );
//---- class AutoReleasePtr ---------------------------------------------------
template<class T> class AutoReleasePtr {
@@ -38,6 +41,10 @@ public:
AutoReleasePtr() {
ptr = NULL;
}
AutoReleasePtr( T* p ) {
ptr = p;
ptr->AddRef();
}
~AutoReleasePtr() {
if( ptr != NULL )
ptr->Release();
@@ -126,6 +133,86 @@ public:
}
};
//---- class DialogEventHandler -----------------------------------------------
// see https://github.com/microsoft/Windows-classic-samples/blob/main/Samples/Win7Samples/winui/shell/appplatform/commonfiledialog/CommonFileDialogApp.cpp
class DialogEventHandler : public IFileDialogEvents {
JNIEnv* env;
jboolean open;
jobject callback;
LONG refCount = 1;
public:
DialogEventHandler( JNIEnv* _env, jboolean _open, jobject _callback ) {
env = _env;
open = _open;
callback = _callback;
}
//---- IFileDialogEvents methods ----
IFACEMETHODIMP OnFileOk( IFileDialog* dialog ) {
if( callback == NULL )
return S_OK;
// get files
jobjectArray files;
if( open ) {
AutoReleasePtr<IFileOpenDialog> openDialog;
HRESULT hr = dialog->QueryInterface( &openDialog );
files = SUCCEEDED( hr ) ? getFiles( env, true, openDialog ) : getFiles( env, false, dialog );
} else
files = getFiles( env, false, dialog );
// get hwnd of file dialog
HWND hwndFileDialog = 0;
AutoReleasePtr<IOleWindow> window;
if( SUCCEEDED( dialog->QueryInterface( &window ) ) )
window->GetWindow( &hwndFileDialog );
// invoke callback: boolean approve( String[] files, long hwnd );
jclass cls = env->GetObjectClass( callback );
jmethodID approveID = env->GetMethodID( cls, "approve", "([Ljava/lang/String;J)Z" );
if( approveID == NULL )
return S_OK;
return env->CallBooleanMethod( callback, approveID, files, hwndFileDialog ) ? S_OK : S_FALSE;
}
IFACEMETHODIMP OnFolderChange( IFileDialog* ) { return S_OK; }
IFACEMETHODIMP OnFolderChanging( IFileDialog*, IShellItem* ) { return S_OK; }
IFACEMETHODIMP OnHelp( IFileDialog* ) { return S_OK; }
IFACEMETHODIMP OnSelectionChange( IFileDialog* ) { return S_OK; }
IFACEMETHODIMP OnShareViolation( IFileDialog*, IShellItem*, FDE_SHAREVIOLATION_RESPONSE* ) { return S_OK; }
IFACEMETHODIMP OnTypeChange( IFileDialog*pfd ) { return S_OK; }
IFACEMETHODIMP OnOverwrite( IFileDialog*, IShellItem*, FDE_OVERWRITE_RESPONSE* ) { return S_OK; }
//---- IUnknown methods ----
IFACEMETHODIMP QueryInterface( REFIID riid, void** ppv ) {
if( riid != IID_IFileDialogEvents && riid != IID_IUnknown )
return E_NOINTERFACE;
*ppv = static_cast<IFileDialogEvents*>( this );
AddRef();
return S_OK;
}
IFACEMETHODIMP_(ULONG) AddRef() {
return InterlockedIncrement( &refCount );
}
IFACEMETHODIMP_(ULONG) Release() {
LONG newRefCount = InterlockedDecrement( &refCount );
if( newRefCount == 0 )
delete this;
return newRefCount;
}
private:
~DialogEventHandler() {}
};
//---- class CoInitializer ----------------------------------------------------
class CoInitializer {
@@ -163,7 +250,7 @@ JNIEXPORT jobjectArray JNICALL Java_com_formdev_flatlaf_ui_FlatNativeWindowsLibr
( JNIEnv* env, jclass cls, jobject owner, jboolean open,
jstring title, jstring okButtonLabel, jstring fileNameLabel, jstring fileName,
jstring folder, jstring saveAsItem, jstring defaultFolder, jstring defaultExtension,
jint optionsSet, jint optionsClear, jint fileTypeIndex, jobjectArray fileTypes )
jint optionsSet, jint optionsClear, jobject callback, jint fileTypeIndex, jobjectArray fileTypes )
{
// initialize COM library
CoInitializer coInitializer;
@@ -226,20 +313,31 @@ JNIEXPORT jobjectArray JNICALL Java_com_formdev_flatlaf_ui_FlatNativeWindowsLibr
CHECK_HRESULT( dialog->SetFileTypeIndex( min( fileTypeIndex + 1, specs.count ) ) );
}
// add event handler
AutoReleasePtr<DialogEventHandler> handler( new DialogEventHandler( env, open, callback ) );
DWORD dwCookie = 0;
CHECK_HRESULT( dialog->Advise( handler, &dwCookie ) );
// show dialog
HWND hwndOwner = (owner != NULL) ? getWindowHandle( env, owner ) : NULL;
HRESULT hr = dialog->Show( hwndOwner );
dialog->Unadvise( dwCookie );
if( hr == HRESULT_FROM_WIN32(ERROR_CANCELLED) )
return newJavaStringArray( env, 0 );
CHECK_HRESULT( hr );
// convert shell items to Java string array
// get selected files as Java string array
return getFiles( env, open, dialog );
}
static jobjectArray getFiles( JNIEnv* env, jboolean open, IFileDialog* dialog ) {
if( open ) {
AutoReleasePtr<IShellItemArray> shellItems;
DWORD count;
CHECK_HRESULT( ((IFileOpenDialog*)(IFileDialog*)dialog)->GetResults( &shellItems ) );
CHECK_HRESULT( shellItems->GetCount( &count ) );
// convert shell items to Java string array
jobjectArray array = newJavaStringArray( env, count );
for( int i = 0; i < count; i++ ) {
AutoReleasePtr<IShellItem> shellItem;
@@ -260,6 +358,7 @@ JNIEXPORT jobjectArray JNICALL Java_com_formdev_flatlaf_ui_FlatNativeWindowsLibr
CHECK_HRESULT( dialog->GetResult( &shellItem ) );
CHECK_HRESULT( shellItem->GetDisplayName( SIGDN_FILESYSPATH, &path ) );
// convert shell item to Java string array
jstring jpath = newJavaString( env, path );
CoTaskMemFree( path );
@@ -270,3 +369,15 @@ JNIEXPORT jobjectArray JNICALL Java_com_formdev_flatlaf_ui_FlatNativeWindowsLibr
return array;
}
}
extern "C"
JNIEXPORT jint JNICALL Java_com_formdev_flatlaf_ui_FlatNativeWindowsLibrary_showMessageDialog
( JNIEnv* env, jclass cls, jlong hwndParent, jstring text, jstring caption, jint type )
{
// convert Java strings to C strings
AutoReleaseString ctext( env, text );
AutoReleaseString ccaption( env, caption );
return ::MessageBox( reinterpret_cast<HWND>( hwndParent ), ctext, ccaption, type );
}

12
flatlaf-natives/flatlaf-natives-windows/src/main/headers/com_formdev_flatlaf_ui_FlatNativeWindowsLibrary.h
View File

@@ -116,10 +116,18 @@ JNIEXPORT jboolean JNICALL Java_com_formdev_flatlaf_ui_FlatNativeWindowsLibrary_
/*
* Class: com_formdev_flatlaf_ui_FlatNativeWindowsLibrary
* Method: showFileChooser
* Signature: (Ljava/awt/Window;ZLjava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;III[Ljava/lang/String;)[Ljava/lang/String;
* Signature: (Ljava/awt/Window;ZLjava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;IILcom/formdev/flatlaf/ui/FlatNativeWindowsLibrary/FileChooserCallback;I[Ljava/lang/String;)[Ljava/lang/String;
*/
JNIEXPORT jobjectArray JNICALL Java_com_formdev_flatlaf_ui_FlatNativeWindowsLibrary_showFileChooser
(JNIEnv *, jclass, jobject, jboolean, jstring, jstring, jstring, jstring, jstring, jstring, jstring, jstring, jint, jint, jint, jobjectArray);
(JNIEnv *, jclass, jobject, jboolean, jstring, jstring, jstring, jstring, jstring, jstring, jstring, jstring, jint, jint, jobject, jint, jobjectArray);
/*
* Class: com_formdev_flatlaf_ui_FlatNativeWindowsLibrary
* Method: showMessageDialog
* Signature: (JLjava/lang/String;Ljava/lang/String;I)I
*/
JNIEXPORT jint JNICALL Java_com_formdev_flatlaf_ui_FlatNativeWindowsLibrary_showMessageDialog
(JNIEnv *, jclass, jlong, jstring, jstring, jint);
#ifdef __cplusplus
}