Improve Window object.

18 files changed, 188 insertions, 166 deletions

diff --git a/README b/README
index f0cecc9..c26ab24 100644
--- a/README
+++ b/README
@@ -26,8 +26,6 @@ episodelistview.cpp,h
 	Defines the interface to the episode list view.
 datalistview.cpp,h
 	Defines the interface to the data list view.
-layout.cpp,h
-	Handles the placement of child windows.
 resource.rc
 	Defines menu and dialog window resources.
 resource.h
@@ -43,7 +41,7 @@ data.cpp,h
 
 >> Miscellanea <<
 
-win.cpp,h
+win32.cpp,h
 	Helpers for interacting with the Win32 API.
 util.h
 	Utility functions.
diff --git a/c/CMakeLists.txt b/c/CMakeLists.txt
index 35af6ec..cd86f08 100644
--- a/c/CMakeLists.txt
+++ b/c/CMakeLists.txt
@@ -20,23 +20,23 @@ target_sources(EpisodeBrowser PRIVATE
   datalistview.h
   debug.cpp
   debug.h
+  drag.cpp
+  drag.h
   episodelistview.cpp
   episodelistview.h
   ext.cpp
   ext.h
-  layout.cpp
-  layout.h
   listview.cpp
   listview.h
   main.cpp
-  main.h
   resource.h
   resource.rc
   test.cpp
   test.h
   util.h
-  win.cpp
-  win.h
+  win32.cpp
+  win32.h
+  window.h
 )
 
 if (CMAKE_GENERATOR MATCHES "Visual Studio")
diff --git a/c/data.cpp b/c/data.cpp
index 1274321..b1c028e 100644
--- a/c/data.cpp
+++ b/c/data.cpp
@@ -5,12 +5,12 @@
 #include <libxml/HTMLtree.h>
 #include <libxml/xpath.h>
 
-#include "resource.h"
 #include "data.h"
 #include "episodelistview.h"
-#include "main.h"
+#include "resource.h"
 #include "util.h"
-#include "win.h"
+#include "win32.h"
+#include "window.h"
 
 UniqueOk<htmlParserCtxtPtr, xmlFreeParserCtxt> RemoteParserCtxt(const wchar_t* wszUrl, const char* szUrl)
 {
@@ -88,9 +88,10 @@ enum Signal : unsigned char
 	ABORT = 1<<2	/* Main -> fetch: exit prematurely! */
 };
 
-void WaitFor(void (*f)(unsigned char*))
+static Window* s_window;
+
+void WaitFor(Window& window, void (*f)(unsigned char*))
 {
-	extern Window* g_window;
 	static unsigned char sig = READY;
 	static UINT_PTR iTimer = 0;
 
@@ -102,13 +103,13 @@ void WaitFor(void (*f)(unsigned char*))
 			KillTimer(nullptr, iTimer);
 			i = 0;
 			sig = READY; /* Reset signals. */
-			g_window->elv.Update(); /* Reset status bar. */
-			EnableMenuItem(GetMenu(g_window->hWnd), IDM_FILE_FETCH_CANCEL, MF_GRAYED);
+			s_window->elv.Update(); /* Reset status bar. */
+			EnableMenuItem(GetMenu(s_window->hWnd), IDM_FILE_FETCH_CANCEL, MF_GRAYED);
 		} else {
 			/* Animate ellipsis in status bar. */
 			static const wchar_t* text[] = {L".", L"..", L"...", L""};
 			i = (i+1)%(sizeof(text)/sizeof(*text));
-			Status(text[i], 1);
+			s_window->Status(text[i], 1);
 		}
 	};
 
@@ -118,7 +119,7 @@ void WaitFor(void (*f)(unsigned char*))
 		while (!(sig & READY))
 			Sleep(100);
 		sig = 0;
-		EnableMenuItem(GetMenu(g_window->hWnd), IDM_FILE_FETCH_CANCEL, MF_ENABLED);
+		EnableMenuItem(GetMenu(s_window->hWnd), IDM_FILE_FETCH_CANCEL, MF_ENABLED);
 		try {
 			f(&sig);
 			sig |= DONE;
@@ -132,7 +133,7 @@ void WaitFor(void (*f)(unsigned char*))
 	/* Null indicates that any active task should be cancelled. */
 	if (!f) {
 		sig |= ABORT;
-		EnableMenuItem(GetMenu(g_window->hWnd), IDM_FILE_FETCH_CANCEL, MF_GRAYED);
+		EnableMenuItem(GetMenu(s_window->hWnd), IDM_FILE_FETCH_CANCEL, MF_GRAYED);
 		return;
 	}
 
@@ -146,8 +147,9 @@ void WaitFor(void (*f)(unsigned char*))
 			return;
 	}
 
+	s_window = &window;
 	std::thread(procThread, f).detach();
-	Status(L".", 1);
+	s_window->Status(L".", 1);
 	Prefer(iTimer = SetTimer(nullptr, iTimer, 500, procTimer));
 }
 
@@ -180,8 +182,6 @@ void FetchData(unsigned char* sig)
 		throw std::runtime_error("could not find remote episode information");
 
 	for (int i = 0; i < nodes->nodeNr; i++) {
-		extern Window* g_window;
-
 		if (*sig & ABORT)
 			return;
 
@@ -189,8 +189,8 @@ void FetchData(unsigned char* sig)
 		if (xmlChildElementCount(node) != 8)
 			throw std::runtime_error("unexpected remote data format");
 
-		ElvDataA& e = g_window->fvElv.At(i);
-		DlvDataA& d = g_window->fvDlv.At(i);
+		ElvDataA& e = s_window->fvElv.At(i);
+		DlvDataA& d = s_window->fvDlv.At(i);
 
 		/* Each datum is contained within a specific cell in
 		 * the row. The child element count above ensures that
@@ -222,8 +222,6 @@ void FetchData(unsigned char* sig)
 
 void FetchScreenwriters(unsigned char* sig)
 {
-	extern Window* g_window;
-
 	/* Screenwriters are expensive to fetch, so we try to avoid
 	 * fetching screenwriters for episodes that already have a
 	 * screenwriter. Additionally, in the same session, we don't
@@ -231,18 +229,18 @@ void FetchScreenwriters(unsigned char* sig)
 	 * already tried to fetch screenwriters. We keep track of
 	 * these states using the iLast variable. */
 	static int iLast = -1;
-	int iMax = g_window->cfg.cEp-1;
+	int iMax = s_window->cfg.cEp-1;
 
 	/* Find the last episode that has a screenwriter. */
 	if (iLast == -1)
-		for (size_t i = 0; i < g_window->fvDlv.c; i++)
-			if (const DlvDataA& d = g_window->fvDlv[i]; !d.date[0]) {
+		for (size_t i = 0; i < s_window->fvDlv.c; i++)
+			if (const DlvDataA& d = s_window->fvDlv[i]; !d.date[0]) {
 				iMax = i-1;
 				break;
 			} else if (d.screenwriter[0])
 				iLast = i;
 
-	FINALLY { Status(L""); };
+	FINALLY { s_window->Status(L""); };
 
 	/* Fetch screenwriters for the rest of the episodes. */
 	const wchar_t prefix[] = L"https://www.detectiveconanworld.com";
@@ -257,10 +255,10 @@ void FetchScreenwriters(unsigned char* sig)
 
 		wchar_t msg[48];
 		Swprintf(msg, L"Fetching screenwriter for episode %d...", iLast+1);
-		Status(msg);
+		s_window->Status(msg);
 
 		/* Retrieve URL for episode's wiki page. */
-		DlvDataA& d = g_window->fvDlv[iLast];
+		DlvDataA& d = s_window->fvDlv[iLast];
 		Wcscpy(Buf(url)+Len(prefix), d.wiki);
 
 		/* Retrieve screenwriter from HTML. */
diff --git a/c/data.h b/c/data.h
index 0f00ecb..919e1b4 100644
--- a/c/data.h
+++ b/c/data.h
@@ -6,7 +6,7 @@
 #include <libxml/xmlerror.h>
 
 #include "util.h"
-#include "win.h"
+#include "win32.h"
 
 struct XmlError : public std::exception
 {
@@ -26,7 +26,8 @@ void FetchData(unsigned char* sig);
 void FetchScreenwriters(unsigned char* sig);
 
 /* Wait for thread. */
-void WaitFor(void (*f)(unsigned char*));
+struct Window;
+void WaitFor(Window& window, void (*f)(unsigned char*));
 
 /* The structs ending with A are written as-is to disk. As such, they
  * should be regarded as immutable. If the format needs to be changed
diff --git a/c/datalistview.cpp b/c/datalistview.cpp
index cdd8189..92fc05c 100644
--- a/c/datalistview.cpp
+++ b/c/datalistview.cpp
@@ -3,13 +3,12 @@
 #include <windows.h>
 #include <commctrl.h>
 
-#include "resource.h"
 #include "data.h"
 #include "datalistview.h"
 #include "episodelistview.h"
 #include "listview.h"
-#include "layout.h"
-#include "main.h"
+#include "resource.h"
+#include "window.h"
 
 DataListView::DataListView(Window& parent)
 	: ListView(parent, reinterpret_cast<HMENU>(IDC_DATALISTVIEW), LVS_NOCOLUMNHEADER)
@@ -81,7 +80,7 @@ void DataListView::ShowEpisode(const int iEpisode)
 		}
 	}
 
-	UpdateLayout();
+	parent.UpdateLayout();
 
 	LVFINDINFO lvfi;
 	lvfi.flags = LVFI_PARAM;
diff --git a/c/debug.cpp b/c/debug.cpp
index e8a9d6e..3e20d73 100644
--- a/c/debug.cpp
+++ b/c/debug.cpp
@@ -3,7 +3,7 @@
 #include <windows.h>
 
 #include "debug.h"
-#include "win.h"
+#include "win32.h"
 
 struct Avg {
 	int id;
diff --git a/c/layout.cpp b/c/drag.cpp
index e817b23..b92429a 100644
--- a/c/layout.cpp
+++ b/c/drag.cpp
@@ -1,42 +1,10 @@
 #include <windows.h>
 
-#include "episodelistview.h"
 #include "datalistview.h"
-#include "layout.h"
-#include "main.h"
-#include "win.h"
-
-extern Window* g_window;
-extern HWND g_hWndStatus;
-
-void UpdateLayout(int w, int h)
-{
-	if (!g_hWndStatus) return;
-
-	RECT rc, rrStatus;
-	if (w && h) rc = {0, 0, w, h};
-	else Require(GetClientRect(g_window->hWnd, &rc));
-	Require(GetRelativeRect(g_hWndStatus, &rrStatus));
-
-	SendMessageW(g_window->hWnd, WM_SETREDRAW, FALSE, 0);
-
-	/* Resize list views. */
-	const long pad = EBIsThemeActive()? Dpi(6): 0; /* Add padding in modern themes. */
-	const long cyDlv = rrStatus.top-g_window->dlv.Height()-pad;
-	Require(SetWindowRect(g_window->dlv.hWnd, pad, cyDlv, rc.right-pad, rrStatus.top-pad));
-	Require(SetWindowRect(g_window->elv.hWnd, pad, pad, rc.right-pad, cyDlv-pad));
-	g_window->dlv.ResizeColumns(rc.right-pad-pad);
-	g_window->elv.ResizeColumns(rc.right-pad-pad);
-
-	/* Resize status bar parts. */
-	const int aParts[] = {rc.right-Dpi(55), rc.right};
-	SendMessageW(g_hWndStatus, SB_SETPARTS,
-	    sizeof(aParts), reinterpret_cast<LPARAM>(aParts));
-
-	SendMessageW(g_window->hWnd, WM_SETREDRAW, TRUE, 0);
-	RedrawWindow(g_window->hWnd, nullptr, nullptr,
-	    RDW_ERASE|RDW_FRAME|RDW_INVALIDATE|RDW_ALLCHILDREN);
-}
+#include "drag.h"
+#include "episodelistview.h"
+#include "win32.h"
+#include "window.h"
 
 bool Dragger::IsDouble(const long time, const POINT& pt)
 {
@@ -92,7 +60,7 @@ bool Dragger::HandleSetCursor()
 bool DlvDragger::InDragArea(const int x, const int y) const
 {
 	RECT rrDlv;
-	Require(GetRelativeRect(g_window->dlv.hWnd, &rrDlv));
+	Require(GetRelativeRect(parent.dlv.hWnd, &rrDlv));
 
 	const int pad = EBIsThemeActive()? Dpi(6): 0;
 	const int extra = EBIsThemeActive()? 0: Dpi(2);
@@ -104,26 +72,26 @@ bool DlvDragger::InDragArea(const int x, const int y) const
 void DlvDragger::Drag(const int, const int y) const
 {
 	RECT rrDlv;
-	Require(GetRelativeRect(g_window->dlv.hWnd, &rrDlv));
+	Require(GetRelativeRect(parent.dlv.hWnd, &rrDlv));
 
 	if (y < Dpi(50) || y > rrDlv.bottom-Dpi(20)) return;
 
 	int h;
 	h = rrDlv.bottom-y;
-	g_window->dlv.SetHeight(h);
-	UpdateLayout();
-	RedrawWindow(g_window->hWnd, nullptr, nullptr,
+	parent.dlv.SetHeight(h);
+	parent.UpdateLayout();
+	RedrawWindow(parent.hWnd, nullptr, nullptr,
 	    RDW_ERASE|RDW_FRAME|RDW_INVALIDATE|RDW_ALLCHILDREN|RDW_UPDATENOW);
 }
 
 void DlvDragger::Reset() const
 {
-	g_window->dlv.SetHeight(0);
-	g_window->cfg.heightDlv = 0;
-	UpdateLayout();
+	parent.dlv.SetHeight(0);
+	parent.cfg.heightDlv = 0;
+	parent.UpdateLayout();
 }
 
 void DlvDragger::Done() const
 {
-	g_window->cfg.heightDlv = g_window->dlv.Height();
+	parent.cfg.heightDlv = parent.dlv.Height();
 }
diff --git a/c/layout.h b/c/drag.h
index 4780821..ac97090 100644
--- a/c/layout.h
+++ b/c/drag.h
@@ -1,14 +1,8 @@
-#ifndef LAYOUT_H
-#define LAYOUT_H
+#ifndef DRAG_H
+#define DRAG_H
 
 #include <windows.h>
 
-#include "win.h"
-
-/* Given main window's width and height, set appropriate positions and
- * sizes for child windows. */
-void UpdateLayout(int w = 0, int h = 0);
-
 /* Dragger objects implement draggable portions of the client area,
  * such as the split between two list views. HandleLButtonDown and
  * HandleSetCursor are called by relevant window procedures upon
diff --git a/c/episodelistview.cpp b/c/episodelistview.cpp
index ea4849f..29c015b 100644
--- a/c/episodelistview.cpp
+++ b/c/episodelistview.cpp
@@ -3,15 +3,15 @@
 #include <windows.h>
 #include <commctrl.h>
 
-#include "resource.h"
 #include "data.h"
 #include "datalistview.h"
 #include "episodelistview.h"
 #include "ext.h"
 #include "listview.h"
-#include "main.h"
+#include "resource.h"
 #include "util.h"
-#include "win.h"
+#include "win32.h"
+#include "window.h"
 
 EpisodeListView::EpisodeListView(Window& parent)
 	: ListView(parent, reinterpret_cast<HMENU>(IDC_EPISODELISTVIEW), 0)
@@ -66,12 +66,12 @@ void EpisodeListView::HandleContextMenu(const WORD command)
 			/* Process other commands. */
 			switch (command) {
 			case IDM_WATCH_LOCALLY:
-				if(!OpenLocally(lvi.lParam))
+				if(!OpenLocally(parent.cfg, parent.fvElv.At(lvi.lParam-1)))
 					cNotFound++;
 				break;
 
 			case IDM_WATCH_ONLINE:
-				OpenOnline(lvi.lParam);
+				OpenOnline(parent.cfg, lvi.lParam);
 				break;
 
 			case IDM_TOGGLE:
@@ -79,7 +79,7 @@ void EpisodeListView::HandleContextMenu(const WORD command)
 				break;
 
 			case IDM_WIKI:
-				OpenWiki(lvi.lParam);
+				OpenWiki(parent.fvDlv.At(lvi.lParam-1));
 				break;
 			}
 		}
@@ -176,15 +176,14 @@ LRESULT EpisodeListView::HandleNotify(const LPARAM lParam)
 	    {
 		LVITEM lvi = {LVIF_PARAM, -1};
 		while (FindNextItem(&lvi, LVNI_SELECTED))
-			OpenLocally(lvi.lParam) || OpenOnline(lvi.lParam);
+			OpenLocally(parent.cfg, parent.fvElv.At(lvi.lParam-1)) || OpenOnline(parent.cfg, lvi.lParam);
 		return 0;
 	    }
 
 	case NM_RCLICK:
 	    {
-		extern HMENU g_hMenuPopup;
 		const DWORD pos = GetMessagePos();
-		Require(TrackPopupMenu(g_hMenuPopup, TPM_RIGHTBUTTON,
+		Require(TrackPopupMenu(parent.hMenuPopup, TPM_RIGHTBUTTON,
 		    LOWORD(pos), HIWORD(pos), 0, parent.hWnd, nullptr));
 		return 0;
 	    }
@@ -415,7 +414,7 @@ void EpisodeListView::Update()
 		/* Show number of displayed items in status bar. */
 		wchar_t disp[16];
 		Swprintf(disp, L"%d", cItem);
-		Status(disp, 1);
+		parent.Status(disp, 1);
 	}
 
 	Sort();
diff --git a/c/ext.cpp b/c/ext.cpp
index 77028d1..ea6718a 100644
--- a/c/ext.cpp
+++ b/c/ext.cpp
@@ -3,14 +3,12 @@
 #include <string_view>
 
 #include "data.h"
-#include "main.h"
+#include "window.h"
 
-extern Window* g_window;
-
-bool OpenOnline(int iEp)
+bool OpenOnline(const CfgA& cfg, int iEp)
 {
-	wchar_t url[sizeof(g_window->cfg.url)+4];
-	Swprintf(url, L"%s%d", g_window->cfg.url, iEp);
+	wchar_t url[sizeof(cfg.url)+4];
+	Swprintf(url, L"%s%d", cfg.url, iEp);
 	INT_PTR r = reinterpret_cast<INT_PTR>(
 	    ShellExecuteW(nullptr, L"open", url, nullptr, nullptr, SW_SHOWNORMAL));
 	if (r <= 32)
@@ -18,9 +16,8 @@ bool OpenOnline(int iEp)
 	return true;
 }
 
-bool OpenWiki(int iEp)
+bool OpenWiki(const DlvDataA& d)
 {
-	const DlvDataA& d = g_window->fvDlv.At(iEp-1);
 	wchar_t url[sizeof(d.wiki)+35];
 	Swprintf(url, L"https://www.detectiveconanworld.com%s", d.wiki);
 	INT_PTR r = reinterpret_cast<INT_PTR>(
@@ -110,10 +107,10 @@ static bool FindMatchingFile(wchar_t (&file)[MAX_PATH], const wchar_t* const roo
 	return false;
 }
 
-bool OpenLocally(int iEp)
+bool OpenLocally(CfgA& cfg, const ElvDataA& e)
 {
 	wchar_t file[MAX_PATH];
-	if (FindMatchingFile(file, g_window->cfg.root, g_window->fvElv.At(iEp-1).siEp)) {
+	if (FindMatchingFile(file, cfg.root, e.siEp)) {
 		INT_PTR r = reinterpret_cast<INT_PTR>(
 		    ShellExecuteW(nullptr, L"open", file, nullptr, nullptr, SW_SHOWNORMAL));
 		if (r <= 32)
diff --git a/c/ext.h b/c/ext.h
index 3f9ddbd..5925206 100644
--- a/c/ext.h
+++ b/c/ext.h
@@ -1,8 +1,10 @@
 #ifndef EXT_H
 #define EXT_H
 
-bool OpenOnline(int iEp);
-bool OpenWiki(int iEp);
-bool OpenLocally(int iEp);
+#include "data.h"
+
+bool OpenOnline(const CfgA& cfg, int iEp);
+bool OpenWiki(const DlvDataA& d);
+bool OpenLocally(CfgA& cfg, const ElvDataA& e);
 
 #endif
diff --git a/c/listview.cpp b/c/listview.cpp
index 6074707..03a65ae 100644
--- a/c/listview.cpp
+++ b/c/listview.cpp
@@ -1,10 +1,10 @@
 #include <windows.h>
 #include <commctrl.h>
 
+#include "drag.h"
 #include "listview.h"
-#include "layout.h"
-#include "main.h"
-#include "win.h"
+#include "win32.h"
+#include "window.h"
 
 /* Actual window procedure for all list views, which calls the
  * appropriate WndProc member function. */
@@ -66,7 +66,7 @@ LRESULT CALLBACK ListView::WndProc(const HWND hWnd, const UINT uMsg,
 	case WM_NOTIFY:
 		switch (reinterpret_cast<NMHDR*>(lParam)->code) {
 		case HDN_ENDTRACK:
-			UpdateLayout();
+			parent.UpdateLayout();
 			return TRUE;
 		}
 		break;
diff --git a/c/main.cpp b/c/main.cpp
index 58c0441..ea12db9 100644
--- a/c/main.cpp
+++ b/c/main.cpp
@@ -4,14 +4,14 @@
 #include <commctrl.h>
 #include <libxml/xmlversion.h>
 
-#include "debug.h"
-#include "resource.h"
 #include "datalistview.h"
+#include "debug.h"
+#include "drag.h"
 #include "episodelistview.h"
-#include "layout.h"
-#include "main.h"
+#include "resource.h"
 #include "test.h"
 #include "util.h"
+#include "window.h"
 
 #ifdef _DEBUG
 #define XMAIN 30
@@ -21,10 +21,6 @@
 #define YMAIN CW_USEDEFAULT
 #endif
 
-/* main.cpp defines all global (non-template) variables used in the
- * program. `extern' is used to access them from other files, when
- * need be. */
-
 /* Looked-up constants. */
 int g_dpi = 96;
 
@@ -36,26 +32,19 @@ HFONT g_hfBold;
 HCURSOR g_hcArrow = LoadCursorW(nullptr, IDC_ARROW);
 HCURSOR g_hcSizeNs = LoadCursorW(nullptr, IDC_SIZENS);
 
-/* Menus. */
-HMENU g_hMenuPopup;
-
-/* Windows. */
-HWND g_hWndFocus;
-HWND g_hWndStatus;
+/* Main window object. */
+Window* g_window;
 
 /* Optional Windows functions. */
 BOOL (__stdcall *IsThemeActive)();
 HRESULT (__stdcall *SetWindowTheme)(HWND, const wchar_t*, const wchar_t*);
 
-/* Main window object. */
-Window* g_window;
-
 /* Initialize important global state on parent window creation. */
 static void InitializeMainWindow(HWND) noexcept;
 /* Process parent window commands. */
 static LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
 /* Handle messages to Help > About dialog. */
-INT_PTR CALLBACK AboutDlgProc(HWND, UINT, WPARAM, LPARAM);
+static INT_PTR CALLBACK AboutDlgProc(HWND, UINT, WPARAM, LPARAM);
 
 int WINAPI WinMain(
 	_In_ const HINSTANCE hInstance,
@@ -99,7 +88,7 @@ int WINAPI WinMain(
 	    XMAIN, YMAIN, 0, 0,
 	    nullptr, nullptr, hInstance, nullptr));
 
-	g_hWndStatus = Require(CreateWindowExW(
+	g_window->hWndStatus = Require(CreateWindowExW(
 	    0,
 	    STATUSCLASSNAME,
 	    nullptr,
@@ -115,7 +104,7 @@ int WINAPI WinMain(
 	g_window->elv.RestoreFocus();
 
 #ifdef _DEBUG
-	RunTests();
+	RunTests(*g_window);
 #endif
 
 	MSG msg;
@@ -167,10 +156,6 @@ static void InitializeMainWindow_(const HWND hWnd)
 		SetWindowTheme = (decltype(SetWindowTheme))(void*)GetProcAddress(hModule, "SetWindowTheme");
 	}
 
-	/* Load context menu. */
-	g_hMenuPopup = Require(LoadMenuW(nullptr, MAKEINTRESOURCE(IDR_POPUPMENU)));
-	g_hMenuPopup = Require(GetSubMenu(g_hMenuPopup, 0));
-
 	g_window = new Window(hWnd);
 }
 
@@ -235,7 +220,7 @@ LRESULT CALLBACK Window::WndProc(const HWND hWnd, const UINT uMsg, const WPARAM
 		return 0;
 
 	case WM_SIZE:
-		SendMessage(g_hWndStatus, WM_SIZE, wParam, lParam);
+		SendMessage(hWndStatus, WM_SIZE, wParam, lParam);
 		UpdateLayout(LOWORD(lParam), HIWORD(lParam));
 		return 0;
 
@@ -272,9 +257,9 @@ LRESULT CALLBACK Window::WndProc(const HWND hWnd, const UINT uMsg, const WPARAM
 
 	case WM_ACTIVATE:
 		if (wParam == WA_INACTIVE)
-			g_hWndFocus = GetFocus();
+			hWndFocus = GetFocus();
 		else {
-			SetFocus(g_hWndFocus);
+			SetFocus(hWndFocus);
 			/* TODO: Update tracked episodes. */
 			elv.Redraw();
 		}
@@ -387,16 +372,16 @@ void Window::HandleMainMenu(const HWND hWnd, const WORD command)
 
 	case IDM_FILE_FETCH_DATA:
 	    {
-		WaitFor(FetchData);
+		WaitFor(*this, FetchData);
 		break;
 	    }
 
 	case IDM_FILE_FETCH_SCREENWRITERS:
-		WaitFor(FetchScreenwriters);
+		WaitFor(*this, FetchScreenwriters);
 		break;
 
 	case IDM_FILE_FETCH_CANCEL:
-		WaitFor(nullptr);
+		WaitFor(*this, nullptr);
 		break;
 
 	case IDM_FILE_ABOUT:
@@ -441,6 +426,40 @@ void Window::HandleMainMenu(const HWND hWnd, const WORD command)
 	}
 }
 
+void Window::Status(const wchar_t* msg, unsigned short i)
+{
+	SendMessage(hWndStatus, SB_SETTEXT, MAKEWPARAM(i, 0), reinterpret_cast<LPARAM>(msg));
+}
+
+void Window::UpdateLayout(int w, int h)
+{
+	if (!hWndStatus) return;
+
+	RECT rc, rrStatus;
+	if (w && h) rc = {0, 0, w, h};
+	else Require(GetClientRect(hWnd, &rc));
+	Require(GetRelativeRect(hWndStatus, &rrStatus));
+
+	SendMessageW(hWnd, WM_SETREDRAW, FALSE, 0);
+
+	/* Resize list views. */
+	const long pad = EBIsThemeActive()? Dpi(6): 0; /* Add padding in modern themes. */
+	const long cyDlv = rrStatus.top-dlv.Height()-pad;
+	Require(SetWindowRect(dlv.hWnd, pad, cyDlv, rc.right-pad, rrStatus.top-pad));
+	Require(SetWindowRect(elv.hWnd, pad, pad, rc.right-pad, cyDlv-pad));
+	dlv.ResizeColumns(rc.right-pad-pad);
+	elv.ResizeColumns(rc.right-pad-pad);
+
+	/* Resize status bar parts. */
+	const int aParts[] = {rc.right-Dpi(55), rc.right};
+	SendMessageW(hWndStatus, SB_SETPARTS,
+		sizeof(aParts), reinterpret_cast<LPARAM>(aParts));
+
+	SendMessageW(hWnd, WM_SETREDRAW, TRUE, 0);
+	RedrawWindow(hWnd, nullptr, nullptr,
+		RDW_ERASE|RDW_FRAME|RDW_INVALIDATE|RDW_ALLCHILDREN);
+}
+
 void Window::UpdateTheme()
 {
 	if (IsThemeActive) {
diff --git a/c/test.cpp b/c/test.cpp
index 35c6904..c0a9445 100644
--- a/c/test.cpp
+++ b/c/test.cpp
@@ -4,11 +4,11 @@
 #include "data.h"
 #include "episodelistview.h"
 #include "ext.h"
-#include "main.h"
 #include "util.h"
-#include "win.h"
+#include "win32.h"
+#include "window.h"
 
-extern Window* g_window;
+Window* s_window;
 
 struct Test
 {
@@ -36,8 +36,8 @@ TESTS
 
 	TEST(IO)
 	{
-		ElvDataA& e1_0 = g_window->fvElv.At(5);
-		ElvDataA& e2_0 = g_window->fvElv.At(9);
+		ElvDataA& e1_0 = s_window->fvElv.At(5);
+		ElvDataA& e2_0 = s_window->fvElv.At(9);
 
 		/* Write two ElvDataA structs to disk. */
 		{
@@ -91,7 +91,7 @@ TESTS
 // 	TEST(MigrateCfg)
 // 	{
 // 		FileView<CfgB> fvb = FileView<CfgB>::Initialized(L"cfgb.dat", 1);
-// 		CfgA* a = &g_window->cfg;
+// 		CfgA* a = &s_window->cfg;
 // 		CfgB* b = fvb+0;
 
 // #define CPY(member) b->member = a->member;
@@ -113,8 +113,10 @@ TESTS
 // 	}
 };
 
-int RunTests()
+int RunTests(Window& window)
 {
+	s_window = &window;
+
 	const Test tests[] = {
 		StrcpyWithSmallerDestination(),
 		//IO(),
diff --git a/c/test.h b/c/test.h
index 50ae9e6..31eb974 100644
--- a/c/test.h
+++ b/c/test.h
@@ -1,6 +1,7 @@
 #ifndef TEST_H
 #define TEST_H
 
-int RunTests();
+struct Window;
+int RunTests(Window& window);
 
 #endif
diff --git a/c/win.cpp b/c/win32.cpp
index 40d68e4..f06f96c 100644
--- a/c/win.cpp
+++ b/c/win32.cpp
@@ -4,9 +4,9 @@
 #include <windows.h>
 #include <wininet.h>
 
-#include "main.h"
 #include "util.h"
-#include "win.h"
+#include "win32.h"
+#include "window.h"
 
 std::wstring WideFromNarrow(const std::string_view src, const int cp)
 {
diff --git a/c/win.h b/c/win32.h
index 1e09c1f..c4e57b7 100644
--- a/c/win.h
+++ b/c/win32.h
@@ -1,5 +1,5 @@
-#ifndef WIN_H
-#define WIN_H
+#ifndef WIN32_H
+#define WIN32_H
 
 #include <optional>
 #include <string_view>
@@ -144,10 +144,4 @@ inline HRESULT EBSetWindowTheme(const HWND hWnd, const wchar_t* const pszSubAppN
 	return SetWindowTheme? SetWindowTheme(hWnd, pszSubAppName, pszSubIdList): 0;
 }
 
-inline void Status(const wchar_t* msg, unsigned short i = 0)
-{
-	extern HWND g_hWndStatus;
-	SendMessage(g_hWndStatus, SB_SETTEXT, MAKEWPARAM(i,0), reinterpret_cast<LPARAM>(msg));
-}
-
 #endif
diff --git a/c/window.h b/c/window.h
new file mode 100644
index 0000000..5cdffe4
--- /dev/null
+++ b/c/window.h
@@ -0,0 +1,50 @@
+#ifndef WINDOW_H
+#define WINDOW_H
+
+#include <windows.h>
+
+#include "data.h"
+#include "datalistview.h"
+#include "drag.h"
+#include "episodelistview.h"
+#include "resource.h"
+#include "win32.h"
+
+struct Window
+{
+	HWND hWnd;
+	HWND hWndFocus = nullptr;
+	HWND hWndStatus = nullptr;
+	HMENU hMenuPopup = Require(GetSubMenu(Require(LoadMenuW(nullptr, MAKEINTRESOURCE(IDR_POPUPMENU))), 0));
+
+	/* File views. */
+	FileView<CfgA> fvCfg = FileView<CfgA>::Initialized(L"cfg.dat", 1);
+	CfgA& cfg = fvCfg.At(0);
+	FileView<ElvDataA> fvElv{L"elvdata.dat", cfg.cEp+128u};
+	FileView<DlvDataA> fvDlv{L"dlvdata.dat", cfg.cEp+128u};
+
+	/* Layout handlers. */
+	DlvDragger dragDlv = DlvDragger(*this);
+
+	/* Child window objects. */
+	DataListView dlv = DataListView(*this);
+	EpisodeListView elv = EpisodeListView(*this);
+
+	inline Window(HWND hWnd) : hWnd(hWnd) {}
+	LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
+
+	/* Given main window's width and height, set appropriate
+	 * positions and sizes for child windows. */
+	void UpdateLayout(int w = 0, int h = 0);
+
+	/* Process main menu commands. */
+	void HandleMainMenu(HWND, WORD);
+
+	/* Display text in status bar. */
+	void Status(const wchar_t* msg, unsigned short i = 0);
+
+	/* Try to style application according to current Windows theme. */
+	void UpdateTheme();
+};
+
+#endif