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Windows: Set browser window size to 0x0 when minimized to reduce resource usage (issue #1369).

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git-svn-id: https://chromiumembedded.googlecode.com/svn/branches/2062@1821 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
This commit is contained in:
Marshall Greenblatt
2014-09-04 23:13:47 +00:00
parent 45d9e3f357
commit d5f9215aab
2 changed files with 35 additions and 25 deletions
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48
tests/cefclient/cefclient_win.cpp
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@ -596,43 +596,51 @@ LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam,
}
return 0;
case WM_SIZE:
case WM_SIZE: {
if (!g_handler.get())
break;
// Mark the off-screen browser as hidden when the frame window is
// minimized to reduce resource usage.
if (AppIsOffScreenRenderingEnabled()) {
// For off-screen browsers when the frame window is minimized set the
// browser as hidden to reduce resource usage.
const bool offscreen = AppIsOffScreenRenderingEnabled();
if (offscreen) {
CefRefPtr<OSRWindow> osr_window =
static_cast<OSRWindow*>(g_handler->GetOSRHandler().get());
if (osr_window)
osr_window->WasHidden(wParam == SIZE_MINIMIZED);
}
// Don't resize the window if minimizing because the resulting size of 0x0
// causes the layout to go all screwy.
if (wParam != SIZE_MINIMIZED && g_handler->GetBrowser()) {
if (g_handler->GetBrowser()) {
// Retrieve the window handle (parent window with off-screen rendering).
CefWindowHandle hwnd =
g_handler->GetBrowser()->GetHost()->GetWindowHandle();
if (hwnd) {
// Resize the window and address bar to match the new frame size.
RECT rect;
GetClientRect(hWnd, &rect);
rect.top += URLBAR_HEIGHT;
if (wParam == SIZE_MINIMIZED) {
// For windowed browsers when the frame window is minimized set the
// browser window size to 0x0 to reduce resource usage.
if (!offscreen) {
SetWindowPos(hwnd, NULL,
0, 0, 0, 0, SWP_NOZORDER | SWP_NOMOVE | SWP_NOACTIVATE);
}
} else {
// Resize the window and address bar to match the new frame size.
RECT rect;
GetClientRect(hWnd, &rect);
rect.top += URLBAR_HEIGHT;
int urloffset = rect.left + BUTTON_WIDTH * 4;
int urloffset = rect.left + BUTTON_WIDTH * 4;
HDWP hdwp = BeginDeferWindowPos(1);
hdwp = DeferWindowPos(hdwp, editWnd, NULL, urloffset,
0, rect.right - urloffset, URLBAR_HEIGHT, SWP_NOZORDER);
hdwp = DeferWindowPos(hdwp, hwnd, NULL,
rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top,
SWP_NOZORDER);
EndDeferWindowPos(hdwp);
HDWP hdwp = BeginDeferWindowPos(1);
hdwp = DeferWindowPos(hdwp, editWnd, NULL, urloffset,
0, rect.right - urloffset, URLBAR_HEIGHT, SWP_NOZORDER);
hdwp = DeferWindowPos(hdwp, hwnd, NULL,
rect.left, rect.top, rect.right - rect.left,
rect.bottom - rect.top, SWP_NOZORDER);
EndDeferWindowPos(hdwp);
}
}
}
break;
} break;
case WM_ERASEBKGND:
if (g_handler.get() && g_handler->GetBrowser()) {