git subrepo clone --branch=sono6good https://github.com/essej/JUCE.git deps/juce
subrepo: subdir: "deps/juce" merged: "b13f9084e" upstream: origin: "https://github.com/essej/JUCE.git" branch: "sono6good" commit: "b13f9084e" git-subrepo: version: "0.4.3" origin: "https://github.com/ingydotnet/git-subrepo.git" commit: "2f68596"
This commit is contained in:
134
deps/juce/modules/juce_events/native/juce_win32_HiddenMessageWindow.h
vendored
Normal file
134
deps/juce/modules/juce_events/native/juce_win32_HiddenMessageWindow.h
vendored
Normal file
@ -0,0 +1,134 @@
|
||||
/*
|
||||
==============================================================================
|
||||
|
||||
This file is part of the JUCE library.
|
||||
Copyright (c) 2020 - Raw Material Software Limited
|
||||
|
||||
JUCE is an open source library subject to commercial or open-source
|
||||
licensing.
|
||||
|
||||
The code included in this file is provided under the terms of the ISC license
|
||||
http://www.isc.org/downloads/software-support-policy/isc-license. Permission
|
||||
To use, copy, modify, and/or distribute this software for any purpose with or
|
||||
without fee is hereby granted provided that the above copyright notice and
|
||||
this permission notice appear in all copies.
|
||||
|
||||
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
|
||||
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
|
||||
DISCLAIMED.
|
||||
|
||||
==============================================================================
|
||||
*/
|
||||
|
||||
namespace juce
|
||||
{
|
||||
|
||||
//==============================================================================
|
||||
class HiddenMessageWindow
|
||||
{
|
||||
public:
|
||||
HiddenMessageWindow (const TCHAR* const messageWindowName, WNDPROC wndProc)
|
||||
{
|
||||
String className ("JUCE_");
|
||||
className << String::toHexString (Time::getHighResolutionTicks());
|
||||
|
||||
HMODULE moduleHandle = (HMODULE) Process::getCurrentModuleInstanceHandle();
|
||||
|
||||
WNDCLASSEX wc = {};
|
||||
wc.cbSize = sizeof (wc);
|
||||
wc.lpfnWndProc = wndProc;
|
||||
wc.cbWndExtra = 4;
|
||||
wc.hInstance = moduleHandle;
|
||||
wc.lpszClassName = className.toWideCharPointer();
|
||||
|
||||
atom = RegisterClassEx (&wc);
|
||||
jassert (atom != 0);
|
||||
|
||||
hwnd = CreateWindow (getClassNameFromAtom(), messageWindowName,
|
||||
0, 0, 0, 0, 0,
|
||||
nullptr, nullptr, moduleHandle, nullptr);
|
||||
jassert (hwnd != nullptr);
|
||||
}
|
||||
|
||||
~HiddenMessageWindow()
|
||||
{
|
||||
DestroyWindow (hwnd);
|
||||
UnregisterClass (getClassNameFromAtom(), nullptr);
|
||||
}
|
||||
|
||||
inline HWND getHWND() const noexcept { return hwnd; }
|
||||
|
||||
private:
|
||||
ATOM atom;
|
||||
HWND hwnd;
|
||||
|
||||
LPCTSTR getClassNameFromAtom() noexcept { return (LPCTSTR) (pointer_sized_uint) atom; }
|
||||
};
|
||||
|
||||
//==============================================================================
|
||||
class JuceWindowIdentifier
|
||||
{
|
||||
public:
|
||||
static bool isJUCEWindow (HWND hwnd) noexcept
|
||||
{
|
||||
return GetWindowLongPtr (hwnd, GWLP_USERDATA) == getImprobableWindowNumber();
|
||||
}
|
||||
|
||||
static void setAsJUCEWindow (HWND hwnd, bool isJuceWindow) noexcept
|
||||
{
|
||||
SetWindowLongPtr (hwnd, GWLP_USERDATA, isJuceWindow ? getImprobableWindowNumber() : 0);
|
||||
}
|
||||
|
||||
private:
|
||||
static LONG_PTR getImprobableWindowNumber() noexcept
|
||||
{
|
||||
static auto number = (LONG_PTR) Random().nextInt64();
|
||||
return number;
|
||||
}
|
||||
};
|
||||
|
||||
//==============================================================================
|
||||
class DeviceChangeDetector : private Timer
|
||||
{
|
||||
public:
|
||||
DeviceChangeDetector (const wchar_t* const name)
|
||||
: messageWindow (name, (WNDPROC) deviceChangeEventCallback)
|
||||
{
|
||||
SetWindowLongPtr (messageWindow.getHWND(), GWLP_USERDATA, (LONG_PTR) this);
|
||||
}
|
||||
|
||||
virtual void systemDeviceChanged() = 0;
|
||||
|
||||
void triggerAsyncDeviceChangeCallback()
|
||||
{
|
||||
// We'll pause before sending a message, because on device removal, the OS hasn't always updated
|
||||
// its device lists correctly at this point. This also helps avoid repeated callbacks.
|
||||
startTimer (500);
|
||||
}
|
||||
|
||||
private:
|
||||
HiddenMessageWindow messageWindow;
|
||||
|
||||
static LRESULT CALLBACK deviceChangeEventCallback (HWND h, const UINT message,
|
||||
const WPARAM wParam, const LPARAM lParam)
|
||||
{
|
||||
if (message == WM_DEVICECHANGE
|
||||
&& (wParam == 0x8000 /*DBT_DEVICEARRIVAL*/
|
||||
|| wParam == 0x8004 /*DBT_DEVICEREMOVECOMPLETE*/
|
||||
|| wParam == 0x0007 /*DBT_DEVNODES_CHANGED*/))
|
||||
{
|
||||
((DeviceChangeDetector*) GetWindowLongPtr (h, GWLP_USERDATA))
|
||||
->triggerAsyncDeviceChangeCallback();
|
||||
}
|
||||
|
||||
return DefWindowProc (h, message, wParam, lParam);
|
||||
}
|
||||
|
||||
void timerCallback() override
|
||||
{
|
||||
stopTimer();
|
||||
systemDeviceChanged();
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace juce
|
Reference in New Issue
Block a user