Initial community commit

Src/Plugins/Library/ml_local/FolderBrowseEx.cpp

@@ -0,0 +1,239 @@
+#include "main.h"
+#include "./folderbrowseex.h"
+#include "../nu/CGlobalAtom.h"
+#include <shobjidl.h>
+#include "../replicant/nu/AutoWide.h"
+
+static CGlobalAtom CLSPROP(L"FBEXDLG");
+
+#ifdef _WIN64
+#define LONGPTR_CAST LONG_PTR
+#else
+#define LONGPTR_CAST LONG
+#endif
+
+#define PATHTYPE_PIDL	FALSE
+#define PATHTYPE_STRING	TRUE
+
+BOOL CALLBACK browseEnumProc(HWND hwnd, LPARAM lParam)
+{
+	wchar_t cl[32] = {0};
+	GetClassName(hwnd, cl, ARRAYSIZE(cl));
+	if (!lstrcmpi(cl, WC_TREEVIEW))
+	{
+		PostMessage(hwnd, TVM_ENSUREVISIBLE, 0, (LPARAM)TreeView_GetSelection(hwnd));
+		return FALSE;
+	}
+
+	return TRUE;
+}
+
+static int WINAPI BrowseCallback_Helper(HWND hwnd, UINT uMsg, LPARAM lParam, LPARAM lpData)
+{
+	FolderBrowseEx *lpfbex = reinterpret_cast<FolderBrowseEx*>(lpData);
+	if (!lpfbex) return 0;
+
+	switch (uMsg)
+	{
+		case BFFM_INITIALIZED:
+			lpfbex->hwnd = hwnd;
+			if(SetPropW(hwnd, CLSPROP, (void*)lpData))
+			{
+				lpfbex->oldProc = (LONG_PTR) ((IsWindowUnicode(hwnd)) ? SetWindowLongPtrW(hwnd, DWLP_DLGPROC, (LONGPTR_CAST)WindowProc_Helper) : SetWindowLongPtrA(hwnd, DWLP_DLGPROC, (LONGPTR_CAST)WindowProc_Helper));
+				if (NULL == lpfbex->oldProc) RemovePropW(hwnd, CLSPROP);
+			}
+
+			// this is not nice but it fixes the selection not working correctly on all OSes
+			EnumChildWindows(hwnd, browseEnumProc, 0);
+			break;
+	}
+	return lpfbex->BrowseCallback(uMsg, lParam);
+}
+
+static LRESULT WINAPI WindowProc_Helper(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
+{
+	FolderBrowseEx *lpfbex = static_cast<FolderBrowseEx*>(GetPropW(hwnd, CLSPROP));
+	if (!lpfbex) return 0; 
+
+	switch(uMsg)
+	{
+		case WM_NCDESTROY:
+			lpfbex->DialogProc(uMsg, wParam, lParam);
+			if (IsWindowUnicode(hwnd)) SetWindowLongPtrW(hwnd, DWLP_DLGPROC, (LONGPTR_CAST)lpfbex->oldProc); 			
+			else SetWindowLongPtrA(hwnd, DWLP_DLGPROC, (LONGPTR_CAST)lpfbex->oldProc);
+			RemovePropW(hwnd, CLSPROP);
+			lpfbex->oldProc = NULL;
+			lpfbex->hwnd = NULL;
+			return 0;
+	}
+	return lpfbex->DialogProc(uMsg, wParam, lParam);
+}
+
+static void Initialize(FolderBrowseEx *lpfbx, LPCITEMIDLIST pidlRoot, UINT ulFlags, LPCWSTR lpszCaption, LPCWSTR lpszTitle)
+{
+	lpfbx->pidlRoot = pidlRoot;
+	lpfbx->ulFlags = ulFlags;
+
+	lpfbx->lpszCaption = NULL;
+	lpfbx->lpszTitle = NULL;
+	lpfbx->image = -1;
+	lpfbx->pidl = NULL;
+	lpfbx->hwnd = NULL;
+	lpfbx->oldProc = NULL;
+
+	CoInitialize(NULL);	
+
+	lpfbx->pathExpanded.empty = TRUE;
+	lpfbx->pathSelection.empty = TRUE;
+
+	if (lpszCaption) lpfbx->SetCaption(lpszCaption);
+	if (lpszTitle) lpfbx->SetTitle(lpszTitle);
+}
+
+FolderBrowseEx::FolderBrowseEx(LPCITEMIDLIST pidlRoot, UINT ulFlags, LPCWSTR lpszCaption, LPCWSTR lpszTitle)
+{
+	Initialize(this, pidlRoot, ulFlags, lpszCaption, lpszTitle);
+}
+
+FolderBrowseEx::FolderBrowseEx(UINT ulFlags, LPCWSTR lpszCaption, LPCWSTR lpszTitle)
+{
+	Initialize(this, NULL, ulFlags, lpszCaption, lpszTitle);
+}
+
+FolderBrowseEx::FolderBrowseEx(UINT ulFlags, LPCWSTR lpszTitle)
+{
+	Initialize(this, NULL, ulFlags, L"", lpszTitle);
+}
+
+FolderBrowseEx::FolderBrowseEx(void) 
+{
+	Initialize(this, NULL, 0, L"", L"");
+}
+
+FolderBrowseEx::~FolderBrowseEx(void)
+{
+	if (pidl) CoTaskMemFree(pidl);
+	if (lpszTitle) free(lpszTitle);
+	if (lpszCaption) free(lpszCaption);
+	CoUninitialize();
+}
+
+HRESULT FolderBrowseEx::ParseDisplayName(LPCWSTR lpszPath, IBindCtx *pbc, LPITEMIDLIST *ppidl, SFGAOF sfgaoIn, SFGAOF *psfgaoOut)
+{
+	IShellFolder *isf = NULL;
+	HRESULT	result;
+	SFGAOF attrib;
+
+	if (NOERROR != (result = SHGetDesktopFolder(&isf))) return result;
+	attrib = sfgaoIn;
+	result = isf->ParseDisplayName(NULL, pbc, (LPWSTR)lpszPath, NULL, ppidl, &attrib);
+	isf->Release();
+
+	if (S_OK != result) *ppidl = NULL;
+	else if (psfgaoOut) *psfgaoOut = attrib;
+	return result;
+}
+
+void FolderBrowseEx::SetExpanded(LPCITEMIDLIST pidlExpand)
+{
+	pathExpanded.empty = FALSE;
+	pathExpanded.type = PATHTYPE_PIDL;
+	pathExpanded.value = (void*)pidlExpand;
+	if (hwnd) SendMessage(BFFM_SETEXPANDED, pathExpanded.type, (LPARAM)pathExpanded.value);
+}
+
+void FolderBrowseEx::SetExpanded(LPCWSTR lpszExpand)
+{
+	pathExpanded.empty = FALSE;
+	pathExpanded.type = PATHTYPE_STRING;
+	pathExpanded.value = (void*)lpszExpand;
+	if (hwnd) SendMessage(BFFM_SETEXPANDED, pathExpanded.type, (LPARAM)pathExpanded.value);
+}
+
+void FolderBrowseEx::SetSelection(LPCITEMIDLIST pidlSelect)
+{
+	pathSelection.empty = FALSE;
+	pathSelection.type = PATHTYPE_PIDL;
+	pathSelection.value = (void*)pidlSelect;
+	if (hwnd) SendMessage(BFFM_SETSELECTIONW, pathSelection.type, (LPARAM)pathSelection.value);
+}
+
+void FolderBrowseEx::SetSelection(LPCWSTR lpszSelect)
+{
+	pathSelection.empty = FALSE;
+	pathSelection.type = PATHTYPE_STRING;
+	pathSelection.value = (void*)lpszSelect;
+	if (hwnd) SendMessage(BFFM_SETSELECTIONW, pathSelection.type, (LPARAM)pathSelection.value);
+}
+
+void FolderBrowseEx::SetCaption(LPCWSTR lpszCaption)
+{
+	if (this->lpszCaption) free(this->lpszCaption);
+	this->lpszCaption = _wcsdup((lpszCaption) ? lpszCaption : L"");
+	if (hwnd) SetWindowText(lpszCaption);
+}
+
+void FolderBrowseEx::SetTitle(LPCWSTR lpszTitle)
+{
+	if (this->lpszTitle) free(this->lpszTitle);
+	this->lpszTitle = _wcsdup((lpszTitle) ? lpszTitle : L"");
+}
+
+LPITEMIDLIST FolderBrowseEx::Browse(HWND hwndOwner)
+{
+	BROWSEINFOW bi = {0};
+	bi.hwndOwner = hwndOwner;
+	bi.pidlRoot = pidlRoot; 
+	bi.pszDisplayName = pszDisplayName;
+	bi.lpszTitle = lpszTitle;
+	bi.ulFlags = ulFlags;
+	bi.lpfn = BrowseCallback_Helper;
+	bi.lParam = (LPARAM)this;
+
+	pidl = SHBrowseForFolderW(&bi);
+	if (pidl) OnSelectionDone(pidl);
+
+	image = (pidl) ? bi.iImage : -1;
+
+	return pidl;
+}
+
+INT FolderBrowseEx::BrowseCallback(UINT uMsg, LPARAM lParam)
+{
+	switch(uMsg)
+	{
+		case BFFM_INITIALIZED:		OnInitialized(); break;
+		case BFFM_IUNKNOWN:			OnIUnknown((IUnknown*)lParam); break;
+		case BFFM_SELCHANGED:		OnSelectionChanged((LPCITEMIDLIST)lParam); break;
+		case BFFM_VALIDATEFAILEDA:  return OnValidateFailed(AutoWide((LPCSTR)lParam));
+		case BFFM_VALIDATEFAILEDW:	return OnValidateFailed((LPCWSTR)lParam);
+	}
+	return 0;
+}
+
+void FolderBrowseEx::OnInitialized(void)
+{
+	if (!pathSelection.empty) SendMessage(BFFM_SETSELECTIONW, pathSelection.type, (LPARAM)pathSelection.value);
+	if (!pathExpanded.empty) SendMessage(BFFM_SETEXPANDED, pathExpanded.type, (LPARAM)pathExpanded.value);
+	SetWindowText(lpszCaption);
+}
+
+void FolderBrowseEx::OnSelectionChanged(LPCITEMIDLIST pidl)
+{
+}
+
+INT_PTR FolderBrowseEx::DialogProc(UINT uMsg, WPARAM wParam, LPARAM lParam)
+{
+	return CallWindowProc(uMsg, wParam, lParam);
+}
+
+INT_PTR FolderBrowseEx::CallWindowProc(UINT uMsg, WPARAM wParam, LPARAM lParam) 
+{ 
+	return (IsWindowUnicode(hwnd))	? ::CallWindowProcW((WNDPROC)oldProc, hwnd, uMsg, wParam, lParam) 
+									: ::CallWindowProcA((WNDPROC)oldProc, hwnd, uMsg, wParam, lParam); 
+}
+
+void FolderBrowseEx::SetDialogResult(LRESULT result)
+{
+	SetWindowLongPtr(hwnd, DWLP_MSGRESULT, (LONG)(LONG_PTR)result); 
+}