diff foosdk/sdk/libPPUI/InPlaceCombo.cpp @ 1:20d02a178406 default tip

*: check in everything else yay
author Paper <paper@tflc.us>
date Mon, 05 Jan 2026 02:15:46 -0500
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children
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/foosdk/sdk/libPPUI/InPlaceCombo.cpp	Mon Jan 05 02:15:46 2026 -0500
@@ -0,0 +1,351 @@
+#include "stdafx.h"
+
+#include "InPlaceEdit.h"
+#include "wtl-pp.h"
+#include "win32_op.h"
+
+#include "AutoComplete.h"
+#include "CWindowCreateAndDelete.h"
+#include "win32_utility.h"
+#include "listview_helper.h" // ListView_GetColumnCount
+#include "clipboard.h"
+#include "DarkMode.h"
+
+#include <forward_list>
+
+using namespace InPlaceEdit;
+
+
+namespace {
+
+	enum {
+		MSG_COMPLETION = WM_USER,
+		MSG_DISABLE_EDITING
+	};
+
+
+	// Rationale: more than one HWND on the list is extremely uncommon, hence forward_list
+	static std::forward_list<HWND> g_editboxes;
+	static HHOOK g_hook = NULL /*, g_keyHook = NULL*/;
+
+	static void GAbortEditing(HWND edit, t_uint32 code) {
+		CWindow parent = ::GetParent(edit);
+		parent.SendMessage(MSG_DISABLE_EDITING);
+		parent.PostMessage(MSG_COMPLETION, code, 0);
+	}
+
+#if 0
+	static void GAbortEditing(t_uint32 code) {
+		for (auto walk = g_editboxes.begin(); walk != g_editboxes.end(); ++walk) {
+			GAbortEditing(*walk, code);
+		}
+	}
+#endif
+
+	static bool IsSamePopup(CWindow wnd1, CWindow wnd2) {
+		return pfc::findOwningPopup(wnd1) == pfc::findOwningPopup(wnd2);
+	}
+
+	static void MouseEventTest(HWND target, CPoint pt, bool isWheel) {
+		for (auto walk = g_editboxes.begin(); walk != g_editboxes.end(); ++walk) {
+			CWindow edit(*walk);
+			bool cancel = false;
+			if (target != edit && IsSamePopup(target, edit)) {
+				cancel = true;
+			} else if (isWheel) {
+				CWindow target2 = WindowFromPoint(pt);
+				if (target2 != edit && IsSamePopup(target2, edit)) {
+					cancel = true;
+				}
+			}
+
+			if (cancel) GAbortEditing(edit, KEditLostFocus);
+		}
+	}
+
+	static LRESULT CALLBACK GMouseProc(int nCode, WPARAM wParam, LPARAM lParam) {
+		if (nCode == HC_ACTION) {
+			const MOUSEHOOKSTRUCT * mhs = reinterpret_cast<const MOUSEHOOKSTRUCT *>(lParam);
+			switch (wParam) {
+			case WM_NCLBUTTONDOWN:
+			case WM_NCRBUTTONDOWN:
+			case WM_NCMBUTTONDOWN:
+			case WM_NCXBUTTONDOWN:
+			case WM_LBUTTONDOWN:
+			case WM_RBUTTONDOWN:
+			case WM_MBUTTONDOWN:
+			case WM_XBUTTONDOWN:
+				MouseEventTest(mhs->hwnd, mhs->pt, false);
+				break;
+			case WM_MOUSEWHEEL:
+			case WM_MOUSEHWHEEL:
+				MouseEventTest(mhs->hwnd, mhs->pt, true);
+				break;
+			}
+		}
+		return CallNextHookEx(g_hook, nCode, wParam, lParam);
+	}
+
+	static void on_editbox_creation(HWND p_editbox) {
+		// PFC_ASSERT(core_api::is_main_thread());
+		g_editboxes.push_front(p_editbox);
+		if (g_hook == NULL) {
+			g_hook = SetWindowsHookEx(WH_MOUSE, GMouseProc, NULL, GetCurrentThreadId());
+		}
+		/*if (g_keyHook == NULL) {
+			g_keyHook = SetWindowsHookEx(WH_KEYBOARD, GKeyboardProc, NULL, GetCurrentThreadId());
+		}*/
+	}
+	static void UnhookHelper(HHOOK & hook) {
+		HHOOK v = pfc::replace_null_t(hook);
+		if (v != NULL) UnhookWindowsHookEx(v);
+	}
+	static void on_editbox_destruction(HWND p_editbox) {
+		// PFC_ASSERT(core_api::is_main_thread());
+		g_editboxes.remove(p_editbox);
+		if (g_editboxes.empty()) {
+			UnhookHelper(g_hook); /*UnhookHelper(g_keyHook);*/
+		}
+	}
+
+	class CInPlaceComboBox : public CWindowImpl<CInPlaceComboBox, CComboBox> {
+	public:
+		BEGIN_MSG_MAP_EX(CInPlaceComboBox)
+			//MSG_WM_CREATE(OnCreate)
+			MSG_WM_DESTROY(OnDestroy)
+			MSG_WM_GETDLGCODE(OnGetDlgCode)
+			// MSG_WM_KILLFOCUS(OnKillFocus)
+			MSG_WM_KEYDOWN(OnKeyDown)
+		END_MSG_MAP()
+
+		void OnCreation() {
+			on_editbox_creation(m_hWnd);
+		}
+	private:
+		void OnDestroy() {
+			m_selfDestruct = true;
+			on_editbox_destruction(m_hWnd);
+			SetMsgHandled(FALSE);
+		}
+		int OnCreate(LPCREATESTRUCT) {
+			OnCreation();
+			SetMsgHandled(FALSE);
+			return 0;
+		}
+		UINT OnGetDlgCode(LPMSG lpMsg) {
+			if (lpMsg == NULL) {
+				SetMsgHandled(FALSE); return 0;
+			} else {
+				switch (lpMsg->message) {
+				case WM_KEYDOWN:
+				case WM_SYSKEYDOWN:
+					switch (lpMsg->wParam) {
+					case VK_TAB:
+					case VK_ESCAPE:
+					case VK_RETURN:
+						return DLGC_WANTMESSAGE;
+					default:
+						SetMsgHandled(FALSE); return 0;
+					}
+				default:
+					SetMsgHandled(FALSE); return 0;
+
+				}
+			}
+		}
+		void OnKillFocus(CWindow wndFocus) {
+			if ( wndFocus != NULL ) ForwardCompletion(KEditLostFocus);
+			SetMsgHandled(FALSE);
+		}
+
+		void OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags) {
+			(void)nRepCnt;
+			m_suppressChar = nFlags & 0xFF;
+			switch (nChar) {
+			case VK_TAB:
+				ForwardCompletion(IsKeyPressed(VK_SHIFT) ? KEditShiftTab : KEditTab);
+				return;
+			case VK_ESCAPE:
+				ForwardCompletion(KEditAborted);
+				return;
+			}
+			m_suppressChar = 0;
+			SetMsgHandled(FALSE);
+		}
+
+		void ForwardCompletion(t_uint32 code) {
+			if (IsWindowEnabled()) {
+				CWindow owner = GetParent();
+				owner.SendMessage(MSG_DISABLE_EDITING);
+				owner.PostMessage(MSG_COMPLETION, code, 0);
+				EnableWindow(FALSE);
+			}
+		}
+
+		bool m_selfDestruct = false;
+		UINT m_suppressChar = 0;
+	};
+
+	class InPlaceComboContainer : public CWindowImpl<InPlaceComboContainer> {
+	public:
+		DECLARE_WND_CLASS_EX(_T("{18D85006-0CDB-49AB-A563-6A42014309A3}"), 0, -1);
+
+		const pfc::string_list_const * m_initData;
+		const unsigned m_iDefault;
+
+		HWND Create(CWindow parent) {
+
+			RECT rect_cropped;
+			{
+				RECT client;
+				WIN32_OP_D(parent.GetClientRect(&client));
+				IntersectRect(&rect_cropped, &client, &m_initRect);
+			}
+			const DWORD containerStyle = WS_BORDER | WS_CHILD;
+			AdjustWindowRect(&rect_cropped, containerStyle, FALSE);
+
+
+
+			WIN32_OP(__super::Create(parent, rect_cropped, NULL, containerStyle) != NULL);
+
+			try {
+				CRect rcClient;
+				WIN32_OP_D(GetClientRect(rcClient));
+
+
+				DWORD style = WS_CHILD | WS_VISIBLE;//parent is invisible now
+
+				style |= CBS_DROPDOWNLIST;
+
+
+				CComboBox edit;
+
+				WIN32_OP(edit.Create(*this, rcClient, NULL, style, 0, ID_MYEDIT) != NULL);
+				edit.SetFont(parent.GetFont());
+
+				if ((m_flags & KFlagDark) != 0) DarkMode::DarkenComboLite(edit);
+
+				m_edit.SubclassWindow(edit);
+				m_edit.OnCreation();
+
+
+#if 0 // doesn't quite work
+				if (m_flags & (KFlagAlignCenter | KFlagAlignRight)) {
+					COMBOBOXINFO info = {sizeof(info)};
+					if (m_edit.GetComboBoxInfo(&info)) {
+						CEdit edit2 = info.hwndList;
+						if (edit2) {
+							if (m_flags & KFlagAlignCenter) edit2.ModifyStyle(0, ES_CENTER);
+							else if (m_flags & KFlagAlignRight) edit2.ModifyStyle(0, ES_RIGHT);
+						}
+					}
+				}
+#endif
+
+
+				if (m_initData != nullptr) {
+					const size_t count = m_initData->get_count();
+					for (size_t walk = 0; walk < count; ++walk) {
+						m_edit.AddString(pfc::stringcvt::string_os_from_utf8(m_initData->get_item(walk)));
+					}
+					if (m_iDefault < count) m_edit.SetCurSel(m_iDefault);
+				}
+			} catch (...) {
+				PostMessage(MSG_COMPLETION, InPlaceEdit::KEditAborted, 0);
+				return m_hWnd;
+			}
+
+			ShowWindow(SW_SHOW);
+			m_edit.SetFocus();
+
+			m_initialized = true;
+
+			m_edit.ShowDropDown();
+
+			PFC_ASSERT(m_hWnd != NULL);
+
+			return m_hWnd;
+		}
+
+		InPlaceComboContainer(const RECT & p_rect, unsigned p_flags, pfc::string_list_const * initData, unsigned iDefault, comboReply_t p_notify) : m_notify(p_notify), m_initData(initData), m_iDefault(iDefault), m_initRect(p_rect), m_flags(p_flags) { }
+
+		enum { ID_MYEDIT = 666 };
+
+		BEGIN_MSG_MAP_EX(InPlaceEditContainer)
+			MESSAGE_HANDLER_EX(WM_CTLCOLOREDIT, MsgForwardToParent)
+			MESSAGE_HANDLER_EX(WM_CTLCOLORSTATIC, MsgForwardToParent)
+			MESSAGE_HANDLER_EX(WM_MOUSEWHEEL, MsgLostFocus)
+			MESSAGE_HANDLER_EX(WM_MOUSEHWHEEL, MsgLostFocus)
+			MESSAGE_HANDLER_SIMPLE(MSG_DISABLE_EDITING, OnMsgDisableEditing)
+			MESSAGE_HANDLER_EX(MSG_COMPLETION, OnMsgCompletion)
+			COMMAND_ID_HANDLER_EX(ID_MYEDIT, OnComboMsg)
+			MSG_WM_DESTROY(OnDestroy)
+		END_MSG_MAP()
+
+		HWND GetEditBox() const { return m_edit; }
+
+	private:
+		void OnDestroy() { m_selfDestruct = true; }
+
+		LRESULT MsgForwardToParent(UINT msg, WPARAM wParam, LPARAM lParam) {
+			return GetParent().SendMessage(msg, wParam, lParam);
+		}
+		LRESULT MsgLostFocus(UINT, WPARAM, LPARAM) {
+			PostMessage(MSG_COMPLETION, InPlaceEdit::KEditLostFocus, 0);
+			return 0;
+		}
+		void OnMsgDisableEditing() {
+			ShowWindow(SW_HIDE);
+			GetParent().UpdateWindow();
+		}
+		LRESULT OnMsgCompletion(UINT, WPARAM wParam, LPARAM) {
+			PFC_ASSERT(m_initialized);
+			if ((wParam & KEditMaskReason) != KEditLostFocus) {
+				GetParent().SetFocus();
+			}
+			OnCompletion((unsigned) wParam );
+			if (!m_selfDestruct) {
+				m_selfDestruct = true;
+				DestroyWindow();
+			}
+			return 0;
+		}
+		void OnComboMsg(UINT code, int, CWindow) {
+			if (m_initialized && (code == CBN_SELENDOK || code == CBN_SELENDCANCEL) ) {
+				PostMessage(MSG_COMPLETION, InPlaceEdit::KEditLostFocus, 0);
+			}
+		}
+
+	private:
+
+		void OnCompletion(unsigned p_status) {
+			if (!m_completed) {
+				m_completed = true;
+				if (m_notify) m_notify( p_status, m_edit.GetCurSel() );
+			}
+		}
+
+		const comboReply_t m_notify;
+		bool m_completed = false;
+		bool m_initialized = false;
+		bool m_selfDestruct = false;
+		const CRect m_initRect;
+		CInPlaceComboBox m_edit;
+		const unsigned m_flags;
+	};
+
+}
+
+static void fail(comboReply_t p_notify) {
+	p_notify(KEditAborted, UINT_MAX);
+}
+
+HWND InPlaceEdit::StartCombo(HWND p_parentwnd, const RECT & p_rect, unsigned p_flags, pfc::string_list_const & data, unsigned iDefault, comboReply_t p_notify) {
+	try {
+		PFC_ASSERT((CWindow(p_parentwnd).GetWindowLong(GWL_STYLE) & WS_CLIPCHILDREN) != 0);
+		return (new CWindowCreateAndDelete<InPlaceComboContainer>(p_parentwnd, p_rect, p_flags, &data, iDefault, p_notify))->GetEditBox();
+	} catch (...) {
+		fail(p_notify);
+		return NULL;
+	}
+}