#include "Cef3WinUtil.h"
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#include "include/base/cef_logging.h"
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namespace browser
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{
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void SetUserDataPtr(HWND hWnd, void* ptr) {
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SetLastError(ERROR_SUCCESS);
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LONG_PTR result = ::SetWindowLongPtr(
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hWnd, GWLP_USERDATA, reinterpret_cast<LONG_PTR>(ptr));
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CHECK(result != 0 || GetLastError() == ERROR_SUCCESS);
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}
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WNDPROC SetWndProcPtr(HWND hWnd, WNDPROC wndProc) {
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WNDPROC old =
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reinterpret_cast<WNDPROC>(::GetWindowLongPtr(hWnd, GWLP_WNDPROC));
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CHECK(old != NULL);
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LONG_PTR result = ::SetWindowLongPtr(
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hWnd, GWLP_WNDPROC, reinterpret_cast<LONG_PTR>(wndProc));
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CHECK(result != 0 || GetLastError() == ERROR_SUCCESS);
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return old;
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}
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std::wstring GetResourceString(UINT id) {
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#define MAX_LOADSTRING 100
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TCHAR buff[MAX_LOADSTRING] = {0};
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LoadString(::GetModuleHandle(NULL), id, buff, MAX_LOADSTRING);
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return buff;
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}
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int GetCefMouseModifiers(WPARAM wparam) {
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int modifiers = 0;
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if (wparam & MK_CONTROL)
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modifiers |= EVENTFLAG_CONTROL_DOWN;
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if (wparam & MK_SHIFT)
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modifiers |= EVENTFLAG_SHIFT_DOWN;
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if (IsKeyDown(VK_MENU))
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modifiers |= EVENTFLAG_ALT_DOWN;
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if (wparam & MK_LBUTTON)
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modifiers |= EVENTFLAG_LEFT_MOUSE_BUTTON;
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if (wparam & MK_MBUTTON)
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modifiers |= EVENTFLAG_MIDDLE_MOUSE_BUTTON;
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if (wparam & MK_RBUTTON)
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modifiers |= EVENTFLAG_RIGHT_MOUSE_BUTTON;
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// Low bit set from GetKeyState indicates "toggled".
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if (::GetKeyState(VK_NUMLOCK) & 1)
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modifiers |= EVENTFLAG_NUM_LOCK_ON;
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if (::GetKeyState(VK_CAPITAL) & 1)
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modifiers |= EVENTFLAG_CAPS_LOCK_ON;
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return modifiers;
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}
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int GetCefKeyboardModifiers(WPARAM wparam, LPARAM lparam) {
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int modifiers = 0;
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if (IsKeyDown(VK_SHIFT))
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modifiers |= EVENTFLAG_SHIFT_DOWN;
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if (IsKeyDown(VK_CONTROL))
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modifiers |= EVENTFLAG_CONTROL_DOWN;
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if (IsKeyDown(VK_MENU))
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modifiers |= EVENTFLAG_ALT_DOWN;
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// Low bit set from GetKeyState indicates "toggled".
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if (::GetKeyState(VK_NUMLOCK) & 1)
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modifiers |= EVENTFLAG_NUM_LOCK_ON;
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if (::GetKeyState(VK_CAPITAL) & 1)
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modifiers |= EVENTFLAG_CAPS_LOCK_ON;
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switch (wparam) {
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case VK_RETURN:
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if ((lparam >> 16) & KF_EXTENDED)
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modifiers |= EVENTFLAG_IS_KEY_PAD;
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break;
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case VK_INSERT:
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case VK_DELETE:
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case VK_HOME:
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case VK_END:
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case VK_PRIOR:
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case VK_NEXT:
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case VK_UP:
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case VK_DOWN:
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case VK_LEFT:
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case VK_RIGHT:
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if (!((lparam >> 16) & KF_EXTENDED))
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modifiers |= EVENTFLAG_IS_KEY_PAD;
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break;
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case VK_NUMLOCK:
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case VK_NUMPAD0:
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case VK_NUMPAD1:
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case VK_NUMPAD2:
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case VK_NUMPAD3:
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case VK_NUMPAD4:
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case VK_NUMPAD5:
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case VK_NUMPAD6:
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case VK_NUMPAD7:
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case VK_NUMPAD8:
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case VK_NUMPAD9:
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case VK_DIVIDE:
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case VK_MULTIPLY:
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case VK_SUBTRACT:
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case VK_ADD:
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case VK_DECIMAL:
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case VK_CLEAR:
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modifiers |= EVENTFLAG_IS_KEY_PAD;
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break;
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case VK_SHIFT:
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if (IsKeyDown(VK_LSHIFT))
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modifiers |= EVENTFLAG_IS_LEFT;
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else if (IsKeyDown(VK_RSHIFT))
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modifiers |= EVENTFLAG_IS_RIGHT;
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break;
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case VK_CONTROL:
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if (IsKeyDown(VK_LCONTROL))
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modifiers |= EVENTFLAG_IS_LEFT;
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else if (IsKeyDown(VK_RCONTROL))
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modifiers |= EVENTFLAG_IS_RIGHT;
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break;
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case VK_MENU:
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if (IsKeyDown(VK_LMENU))
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modifiers |= EVENTFLAG_IS_LEFT;
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else if (IsKeyDown(VK_RMENU))
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modifiers |= EVENTFLAG_IS_RIGHT;
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break;
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case VK_LWIN:
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modifiers |= EVENTFLAG_IS_LEFT;
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break;
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case VK_RWIN:
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modifiers |= EVENTFLAG_IS_RIGHT;
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break;
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}
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return modifiers;
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}
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bool IsKeyDown(WPARAM wparam) {
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return (GetKeyState(wparam) & 0x8000) != 0;
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}
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float GetDeviceScaleFactor() {
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static float scale_factor = 1.0;
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static bool initialized = false;
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if (!initialized) {
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// This value is safe to cache for the life time of the app since the user
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// must logout to change the DPI setting. This value also applies to all
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// screens.
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HDC screen_dc = ::GetDC(NULL);
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int dpi_x = GetDeviceCaps(screen_dc, LOGPIXELSX);
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scale_factor = static_cast<float>(dpi_x) / 96.0f;
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::ReleaseDC(NULL, screen_dc);
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initialized = true;
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}
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return scale_factor;
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}
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CefKeyEvent ToCefKeyEvent(UINT message, WPARAM wParam, LPARAM lParam)
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{
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CefKeyEvent event;
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event.windows_key_code = wParam;
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event.native_key_code = lParam;
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event.is_system_key = message == WM_SYSCHAR ||
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message == WM_SYSKEYDOWN ||
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message == WM_SYSKEYUP;
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if (message == WM_KEYDOWN || message == WM_SYSKEYDOWN)
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event.type = KEYEVENT_RAWKEYDOWN;
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else if (message == WM_KEYUP || message == WM_SYSKEYUP)
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event.type = KEYEVENT_KEYUP;
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else
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event.type = KEYEVENT_CHAR;
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event.modifiers = GetCefKeyboardModifiers(wParam, lParam);
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return event;
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}
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} // namespace browser
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