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util_win.cpp
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174 lines (155 loc) · 4.67 KB
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// Copyright (c) 2015 The Chromium Embedded Framework Authors. All rights
// reserved. Use of this source code is governed by a BSD-style license that
// can be found in the LICENSE file.
#define UNICODE
#include "util_win.h"
#include "include/base/cef_logging.h"
namespace {
LARGE_INTEGER qi_freq_ = {};
} // namespace
uint64_t GetTimeNow() {
if (!qi_freq_.HighPart && !qi_freq_.LowPart) {
QueryPerformanceFrequency(&qi_freq_);
}
LARGE_INTEGER t = {};
QueryPerformanceCounter(&t);
return static_cast<uint64_t>((t.QuadPart / double(qi_freq_.QuadPart)) *
1000000);
}
void SetUserDataPtr(HWND hWnd, void* ptr) {
SetLastError(ERROR_SUCCESS);
LONG_PTR result =
::SetWindowLongPtr(hWnd, GWLP_USERDATA, reinterpret_cast<LONG_PTR>(ptr));
CHECK(result != 0 || GetLastError() == ERROR_SUCCESS);
}
WNDPROC SetWndProcPtr(HWND hWnd, WNDPROC wndProc) {
WNDPROC old =
reinterpret_cast<WNDPROC>(::GetWindowLongPtr(hWnd, GWLP_WNDPROC));
CHECK(old != nullptr);
LONG_PTR result = ::SetWindowLongPtr(hWnd, GWLP_WNDPROC,
reinterpret_cast<LONG_PTR>(wndProc));
CHECK(result != 0 || GetLastError() == ERROR_SUCCESS);
return old;
}
std::wstring GetResourceString(UINT id) {
#define MAX_LOADSTRING 100
TCHAR buff[MAX_LOADSTRING] = {0};
LoadString(::GetModuleHandle(nullptr), id, buff, MAX_LOADSTRING);
return buff;
}
int GetCefMouseModifiers(WPARAM wparam) {
int modifiers = 0;
if (wparam & MK_CONTROL)
modifiers |= EVENTFLAG_CONTROL_DOWN;
if (wparam & MK_SHIFT)
modifiers |= EVENTFLAG_SHIFT_DOWN;
if (IsKeyDown(VK_MENU))
modifiers |= EVENTFLAG_ALT_DOWN;
if (wparam & MK_LBUTTON)
modifiers |= EVENTFLAG_LEFT_MOUSE_BUTTON;
if (wparam & MK_MBUTTON)
modifiers |= EVENTFLAG_MIDDLE_MOUSE_BUTTON;
if (wparam & MK_RBUTTON)
modifiers |= EVENTFLAG_RIGHT_MOUSE_BUTTON;
// Low bit set from GetKeyState indicates "toggled".
if (::GetKeyState(VK_NUMLOCK) & 1)
modifiers |= EVENTFLAG_NUM_LOCK_ON;
if (::GetKeyState(VK_CAPITAL) & 1)
modifiers |= EVENTFLAG_CAPS_LOCK_ON;
return modifiers;
}
int GetCefKeyboardModifiers(WPARAM wparam, LPARAM lparam) {
int modifiers = 0;
if (IsKeyDown(VK_SHIFT))
modifiers |= EVENTFLAG_SHIFT_DOWN;
if (IsKeyDown(VK_CONTROL))
modifiers |= EVENTFLAG_CONTROL_DOWN;
if (IsKeyDown(VK_MENU))
modifiers |= EVENTFLAG_ALT_DOWN;
// Low bit set from GetKeyState indicates "toggled".
if (::GetKeyState(VK_NUMLOCK) & 1)
modifiers |= EVENTFLAG_NUM_LOCK_ON;
if (::GetKeyState(VK_CAPITAL) & 1)
modifiers |= EVENTFLAG_CAPS_LOCK_ON;
switch (wparam) {
case VK_RETURN:
if ((lparam >> 16) & KF_EXTENDED)
modifiers |= EVENTFLAG_IS_KEY_PAD;
break;
case VK_INSERT:
case VK_DELETE:
case VK_HOME:
case VK_END:
case VK_PRIOR:
case VK_NEXT:
case VK_UP:
case VK_DOWN:
case VK_LEFT:
case VK_RIGHT:
if (!((lparam >> 16) & KF_EXTENDED))
modifiers |= EVENTFLAG_IS_KEY_PAD;
break;
case VK_NUMLOCK:
case VK_NUMPAD0:
case VK_NUMPAD1:
case VK_NUMPAD2:
case VK_NUMPAD3:
case VK_NUMPAD4:
case VK_NUMPAD5:
case VK_NUMPAD6:
case VK_NUMPAD7:
case VK_NUMPAD8:
case VK_NUMPAD9:
case VK_DIVIDE:
case VK_MULTIPLY:
case VK_SUBTRACT:
case VK_ADD:
case VK_DECIMAL:
case VK_CLEAR:
modifiers |= EVENTFLAG_IS_KEY_PAD;
break;
case VK_SHIFT:
if (IsKeyDown(VK_LSHIFT))
modifiers |= EVENTFLAG_IS_LEFT;
else if (IsKeyDown(VK_RSHIFT))
modifiers |= EVENTFLAG_IS_RIGHT;
break;
case VK_CONTROL:
if (IsKeyDown(VK_LCONTROL))
modifiers |= EVENTFLAG_IS_LEFT;
else if (IsKeyDown(VK_RCONTROL))
modifiers |= EVENTFLAG_IS_RIGHT;
break;
case VK_MENU:
if (IsKeyDown(VK_LMENU))
modifiers |= EVENTFLAG_IS_LEFT;
else if (IsKeyDown(VK_RMENU))
modifiers |= EVENTFLAG_IS_RIGHT;
break;
case VK_LWIN:
modifiers |= EVENTFLAG_IS_LEFT;
break;
case VK_RWIN:
modifiers |= EVENTFLAG_IS_RIGHT;
break;
}
return modifiers;
}
bool IsKeyDown(WPARAM wparam) {
return (GetKeyState(wparam) & 0x8000) != 0;
}
float GetDeviceScaleFactor() {
static float scale_factor = 1.0;
static bool initialized = false;
if (!initialized) {
// This value is safe to cache for the life time of the app since the user
// must logout to change the DPI setting. This value also applies to all
// screens.
HDC screen_dc = ::GetDC(nullptr);
int dpi_x = GetDeviceCaps(screen_dc, LOGPIXELSX);
scale_factor = static_cast<float>(dpi_x) / 96.0f;
::ReleaseDC(nullptr, screen_dc);
initialized = true;
}
return scale_factor;
}