windows-nt/Source/XPSP1/NT/admin/cys/win32/capslockballoontip.cpp
2020-09-26 16:20:57 +08:00

164 lines
3.6 KiB
C++

// Copyright (c) 2000 Microsoft Corporation
//
// Caps lock warning Balloon tip window
//
// 7 Nov 2000 sburns (that would be election day)
//
// added to fix NTRAID#NTBUG9-202238-2000/11/06-sburns
//
// most of this is stolen and cleaned up from johnstep's common cred ui
// ds/win32/credui
#include "pch.h"
#include "CapsLockBalloonTip.hpp"
#include "resource.h"
CapsLockBalloonTip::CapsLockBalloonTip()
:
title(String::load(IDS_CAPS_LOCK_TIP_TITLE)),
text(String::load(IDS_CAPS_LOCK_TIP_TEXT)),
tipWindow(0),
parentWindow(0),
visible(false)
{
LOG_CTOR(CapsLockBalloonTip);
ASSERT(!title.empty());
ASSERT(!text.empty());
}
CapsLockBalloonTip::~CapsLockBalloonTip()
{
LOG_DTOR(CapsLockBalloonTip);
if (Win::IsWindow(tipWindow))
{
Win::DestroyWindow(tipWindow);
tipWindow = 0;
}
}
HRESULT
CapsLockBalloonTip::Init(HWND parentWindow_)
{
LOG_FUNCTION(CapsLockBalloonTip::Init);
ASSERT(Win::IsWindow(parentWindow_));
// should not call init on the same instance twice
ASSERT(!parentWindow);
ASSERT(!tipWindow);
if (Win::IsWindow(tipWindow))
{
Win::DestroyWindow(tipWindow);
}
HRESULT hr = S_OK;
do
{
hr = Win::CreateWindowEx(
WS_EX_TOPMOST,
TOOLTIPS_CLASS,
L"",
WS_POPUP | TTS_NOPREFIX | TTS_BALLOON,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
parentWindow_,
0,
0,
tipWindow);
BREAK_ON_FAILED_HRESULT(hr);
ASSERT(tipWindow);
parentWindow = parentWindow_;
TOOLINFO info;
::ZeroMemory(&info, sizeof(info));
// we want to specify the stem position, so we set TTF_TRACK. We use
// the HWND of the parent window as the tool id, because that if what
// v.5 of comctl32 requires (or the balloon never appears). This is
// a bug that has been fixed in v.6, but until fusion manifests are
// working properly, you can't get v.6
//
// (when manifests are working, then we could remove TTF_IDISHWND and
// set uId to be some fixed integer)
info.uFlags = TTF_IDISHWND | TTF_TRACK;
info.hwnd = parentWindow;
info.uId = reinterpret_cast<UINT_PTR>(parentWindow);
info.lpszText = const_cast<PWCHAR>(text.c_str());
Win::ToolTip_AddTool(tipWindow, info);
Win::ToolTip_SetTitle(tipWindow, TTI_WARNING, title);
}
while (0);
return hr;
}
void
CapsLockBalloonTip::Show(bool notHidden)
{
// LOG_FUNCTION(CapsLockBalloonTip::Show);
TOOLINFO info;
::ZeroMemory(&info, sizeof info);
// set these members the same as in the Init method, in order to
// identify the proper tool.
info.hwnd = parentWindow;
info.uId = reinterpret_cast<UINT_PTR>(parentWindow);
if (notHidden)
{
if (!visible && Win::IsWindowEnabled(parentWindow))
{
Win::SetFocus(parentWindow);
RECT rect;
Win::GetWindowRect(parentWindow, rect);
Win::ToolTip_TrackPosition(
tipWindow,
// put the stem at the point 90% along the x axis
rect.left + 90 * (rect.right - rect.left) / 100,
// and 76% along the y axis of the edit control
rect.top + 76 * (rect.bottom - rect.top) / 100);
Win::ToolTip_TrackActivate(tipWindow, true, info);
visible = true;
}
}
else
{
// hide the tip window
if (visible)
{
Win::ToolTip_TrackActivate(tipWindow, false, info);
visible = false;
}
}
}