Source code
Revision control
Copy as Markdown
Other Tools
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#include <stdio.h>
#include <windows.h>
#include <commctrl.h>
#include <process.h>
#include <io.h>
#include "resource.h"
#include "progressui.h"
#include "readstrings.h"
#include "updatererrors.h"
#define TIMER_ID 1
#define TIMER_INTERVAL 100
#define RESIZE_WINDOW(hwnd, extrax, extray) \
{ \
RECT windowSize; \
GetWindowRect(hwnd, &windowSize); \
SetWindowPos(hwnd, 0, 0, 0, windowSize.right - windowSize.left + extrax, \
windowSize.bottom - windowSize.top + extray, \
SWP_NOMOVE | SWP_NOZORDER); \
}
#define MOVE_WINDOW(hwnd, dx, dy) \
{ \
RECT rc; \
POINT pt; \
GetWindowRect(hwnd, &rc); \
pt.x = rc.left; \
pt.y = rc.top; \
ScreenToClient(GetParent(hwnd), &pt); \
SetWindowPos(hwnd, 0, pt.x + dx, pt.y + dy, 0, 0, \
SWP_NOSIZE | SWP_NOZORDER); \
}
static float sProgress; // between 0 and 100
static BOOL sQuit = FALSE;
static BOOL sIndeterminate = FALSE;
static StringTable sUIStrings;
static BOOL GetStringsFile(WCHAR filename[MAX_PATH]) {
if (!GetModuleFileNameW(nullptr, filename, MAX_PATH)) {
return FALSE;
}
WCHAR* dot = wcsrchr(filename, '.');
if (!dot || wcsicmp(dot + 1, L"exe")) {
return FALSE;
}
wcscpy(dot + 1, L"ini");
return TRUE;
}
static void UpdateDialog(HWND hDlg) {
int pos = int(sProgress + 0.5f);
HWND hWndPro = GetDlgItem(hDlg, IDC_PROGRESS);
SendMessage(hWndPro, PBM_SETPOS, pos, 0L);
}
// The code in this function is from MSDN:
static void CenterDialog(HWND hDlg) {
RECT rc, rcOwner, rcDlg;
// Get the owner window and dialog box rectangles.
HWND desktop = GetDesktopWindow();
GetWindowRect(desktop, &rcOwner);
GetWindowRect(hDlg, &rcDlg);
CopyRect(&rc, &rcOwner);
// Offset the owner and dialog box rectangles so that
// right and bottom values represent the width and
// height, and then offset the owner again to discard
// space taken up by the dialog box.
OffsetRect(&rcDlg, -rcDlg.left, -rcDlg.top);
OffsetRect(&rc, -rc.left, -rc.top);
OffsetRect(&rc, -rcDlg.right, -rcDlg.bottom);
// The new position is the sum of half the remaining
// space and the owner's original position.
SetWindowPos(hDlg, HWND_TOP, rcOwner.left + (rc.right / 2),
rcOwner.top + (rc.bottom / 2), 0, 0, // ignores size arguments
SWP_NOSIZE);
}
static void InitDialog(HWND hDlg) {
mozilla::UniquePtr<WCHAR[]> szwTitle;
mozilla::UniquePtr<WCHAR[]> szwInfo;
int bufferSize =
MultiByteToWideChar(CP_UTF8, 0, sUIStrings.title.get(), -1, nullptr, 0);
szwTitle = mozilla::MakeUnique<WCHAR[]>(bufferSize);
MultiByteToWideChar(CP_UTF8, 0, sUIStrings.title.get(), -1, szwTitle.get(),
bufferSize);
bufferSize =
MultiByteToWideChar(CP_UTF8, 0, sUIStrings.info.get(), -1, nullptr, 0);
szwInfo = mozilla::MakeUnique<WCHAR[]>(bufferSize);
MultiByteToWideChar(CP_UTF8, 0, sUIStrings.info.get(), -1, szwInfo.get(),
bufferSize);
SetWindowTextW(hDlg, szwTitle.get());
SetWindowTextW(GetDlgItem(hDlg, IDC_INFO), szwInfo.get());
// Set dialog icon
HICON hIcon = LoadIcon(GetModuleHandle(nullptr), MAKEINTRESOURCE(IDI_DIALOG));
if (hIcon) {
SendMessage(hDlg, WM_SETICON, ICON_BIG, (LPARAM)hIcon);
}
HWND hWndPro = GetDlgItem(hDlg, IDC_PROGRESS);
SendMessage(hWndPro, PBM_SETRANGE, 0, MAKELPARAM(0, 100));
if (sIndeterminate) {
LONG_PTR val = GetWindowLongPtr(hWndPro, GWL_STYLE);
SetWindowLongPtr(hWndPro, GWL_STYLE, val | PBS_MARQUEE);
SendMessage(hWndPro, (UINT)PBM_SETMARQUEE, (WPARAM)TRUE, (LPARAM)50);
}
// Resize the dialog to fit all of the text if necessary.
RECT infoSize, textSize;
HWND hWndInfo = GetDlgItem(hDlg, IDC_INFO);
// Get the control's font for calculating the new size for the control
HDC hDCInfo = GetDC(hWndInfo);
HFONT hInfoFont, hOldFont = NULL;
hInfoFont = (HFONT)SendMessage(hWndInfo, WM_GETFONT, 0, 0);
if (hInfoFont) {
hOldFont = (HFONT)SelectObject(hDCInfo, hInfoFont);
}
// Measure the space needed for the text on a single line. DT_CALCRECT means
// nothing is drawn.
if (DrawText(hDCInfo, szwInfo.get(), -1, &textSize,
DT_CALCRECT | DT_NOCLIP | DT_SINGLELINE)) {
GetClientRect(hWndInfo, &infoSize);
SIZE extra;
// Calculate the additional space needed for the text by subtracting from
// the rectangle returned by DrawText the existing client rectangle's width
// and height.
extra.cx =
(textSize.right - textSize.left) - (infoSize.right - infoSize.left);
extra.cy =
(textSize.bottom - textSize.top) - (infoSize.bottom - infoSize.top);
if (extra.cx < 0) {
extra.cx = 0;
}
if (extra.cy < 0) {
extra.cy = 0;
}
if ((extra.cx > 0) || (extra.cy > 0)) {
RESIZE_WINDOW(hDlg, extra.cx, extra.cy);
RESIZE_WINDOW(hWndInfo, extra.cx, extra.cy);
RESIZE_WINDOW(hWndPro, extra.cx, 0);
MOVE_WINDOW(hWndPro, 0, extra.cy);
}
}
if (hOldFont) {
SelectObject(hDCInfo, hOldFont);
}
ReleaseDC(hWndInfo, hDCInfo);
CenterDialog(hDlg); // make dialog appear in the center of the screen
SetTimer(hDlg, TIMER_ID, TIMER_INTERVAL, nullptr);
}
// Message handler for update dialog.
static LRESULT CALLBACK DialogProc(HWND hDlg, UINT message, WPARAM wParam,
LPARAM lParam) {
switch (message) {
case WM_INITDIALOG:
InitDialog(hDlg);
return TRUE;
case WM_TIMER:
if (sQuit) {
EndDialog(hDlg, 0);
} else {
UpdateDialog(hDlg);
}
return TRUE;
case WM_COMMAND:
return TRUE;
}
return FALSE;
}
int InitProgressUI(int* argc, WCHAR*** argv) { return 0; }
/**
* Initializes the progress UI strings
*
* @return 0 on success, -1 on error
*/
int InitProgressUIStrings() {
// If we do not have updater.ini, then we should not bother showing UI.
WCHAR filename[MAX_PATH];
if (!GetStringsFile(filename)) {
return -1;
}
if (_waccess(filename, 04)) {
return -1;
}
// If the updater.ini doesn't have the required strings, then we should not
// bother showing UI.
if (ReadStrings(filename, &sUIStrings) != OK) {
return -1;
}
return 0;
}
int ShowProgressUI(bool indeterminate, bool initUIStrings) {
sIndeterminate = indeterminate;
if (!indeterminate) {
// Only show the Progress UI if the process is taking a significant amount
// of time where a significant amount of time is defined as .5 seconds after
// ShowProgressUI is called sProgress is less than 70.
Sleep(500);
if (sQuit || sProgress > 70.0f) {
return 0;
}
}
// Don't load the UI if there's an <exe_name>.Local directory for redirection.
WCHAR appPath[MAX_PATH + 1] = {L'\0'};
if (!GetModuleFileNameW(nullptr, appPath, MAX_PATH)) {
return -1;
}
if (wcslen(appPath) + wcslen(L".Local") >= MAX_PATH) {
return -1;
}
wcscat(appPath, L".Local");
if (!_waccess(appPath, 04)) {
return -1;
}
// Don't load the UI if the strings for the UI are not provided.
if (initUIStrings && InitProgressUIStrings() == -1) {
return -1;
}
if (!GetModuleFileNameW(nullptr, appPath, MAX_PATH)) {
return -1;
}
// Use an activation context that supports visual styles for the controls.
ACTCTXW actx = {0};
actx.cbSize = sizeof(ACTCTXW);
actx.dwFlags = ACTCTX_FLAG_RESOURCE_NAME_VALID | ACTCTX_FLAG_HMODULE_VALID;
actx.hModule = GetModuleHandle(NULL); // Use the embedded manifest
// This is needed only for Win XP but doesn't cause a problem with other
// versions of Windows.
actx.lpSource = appPath;
actx.lpResourceName = MAKEINTRESOURCE(IDR_COMCTL32_MANIFEST);
HANDLE hactx = INVALID_HANDLE_VALUE;
hactx = CreateActCtxW(&actx);
ULONG_PTR actxCookie = NULL;
if (hactx != INVALID_HANDLE_VALUE) {
// Push the specified activation context to the top of the activation stack.
ActivateActCtx(hactx, &actxCookie);
}
INITCOMMONCONTROLSEX icc = {sizeof(INITCOMMONCONTROLSEX), ICC_PROGRESS_CLASS};
InitCommonControlsEx(&icc);
DialogBox(GetModuleHandle(nullptr), MAKEINTRESOURCE(IDD_DIALOG), nullptr,
(DLGPROC)DialogProc);
if (hactx != INVALID_HANDLE_VALUE) {
// Deactivate the context now that the comctl32.dll is loaded.
DeactivateActCtx(0, actxCookie);
}
return 0;
}
void QuitProgressUI() { sQuit = TRUE; }
void UpdateProgressUI(float progress) {
sProgress = progress; // 32-bit writes are atomic
}