// // FUNCTION: WndProc(HWND, UINT, WPARAM, LPARAM) // // PURPOSE: Processes messages for the main window. // LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { static HWND backWnd = NULL, forwardWnd = NULL, reloadWnd = NULL, stopWnd = NULL, editWnd = NULL; static WNDPROC editWndOldProc = NULL; // Static members used for the find dialog. static FINDREPLACE fr; static WCHAR szFindWhat[80] = {0}; static WCHAR szLastFindWhat[80] = {0}; static bool findNext = false; static bool lastMatchCase = false; int wmId, wmEvent; PAINTSTRUCT ps; HDC hdc; if (hWnd == editWnd) { // Callback for the edit window switch (message) { case WM_CHAR: if (wParam == VK_RETURN && g_handler.get()) { // When the user hits the enter key load the URL CefRefPtr<CefBrowser> browser = g_handler->GetBrowser(); wchar_t strPtr[MAX_URL_LENGTH+1] = {0}; *((LPWORD)strPtr) = MAX_URL_LENGTH; LRESULT strLen = SendMessage(hWnd, EM_GETLINE, 0, (LPARAM)strPtr); if (strLen > 0) { strPtr[strLen] = 0; browser->GetMainFrame()->LoadURL(strPtr); } return 0; } } return (LRESULT)CallWindowProc(editWndOldProc, hWnd, message, wParam, lParam); } else if (message == uFindMsg) { // Find event. LPFINDREPLACE lpfr = (LPFINDREPLACE)lParam; if (lpfr->Flags & FR_DIALOGTERM) { // The find dialog box has been dismissed so invalidate the handle and // reset the search results. hFindDlg = NULL; if (g_handler.get()) { g_handler->GetBrowser()->GetHost()->StopFinding(true); szLastFindWhat[0] = 0; findNext = false; } return 0; } if ((lpfr->Flags & FR_FINDNEXT) && g_handler.get()) { // Search for the requested string. bool matchCase = (lpfr->Flags & FR_MATCHCASE?true:false); if (matchCase != lastMatchCase || (matchCase && wcsncmp(szFindWhat, szLastFindWhat, sizeof(szLastFindWhat)/sizeof(WCHAR)) != 0) || (!matchCase && _wcsnicmp(szFindWhat, szLastFindWhat, sizeof(szLastFindWhat)/sizeof(WCHAR)) != 0)) { // The search string has changed, so reset the search results. if (szLastFindWhat[0] != 0) { g_handler->GetBrowser()->GetHost()->StopFinding(true); findNext = false; } lastMatchCase = matchCase; wcscpy_s(szLastFindWhat, sizeof(szLastFindWhat)/sizeof(WCHAR), szFindWhat); } g_handler->GetBrowser()->GetHost()->Find(0, lpfr->lpstrFindWhat, (lpfr->Flags & FR_DOWN)?true:false, matchCase, findNext); if (!findNext) findNext = true; } return 0; } else { // Callback for the main window switch (message) { case WM_CREATE: { // Create the single static handler class instance g_handler = new ClientHandler(); g_handler->SetMainHwnd(hWnd); // Create the child windows used for navigation RECT rect; int x = 0; GetClientRect(hWnd, &rect); backWnd = CreateWindow(L"BUTTON", L"Back", WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON | WS_DISABLED, x, 0, BUTTON_WIDTH, URLBAR_HEIGHT, hWnd, (HMENU) IDC_NAV_BACK, hInst, 0); x += BUTTON_WIDTH; forwardWnd = CreateWindow(L"BUTTON", L"Forward", WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON | WS_DISABLED, x, 0, BUTTON_WIDTH, URLBAR_HEIGHT, hWnd, (HMENU) IDC_NAV_FORWARD, hInst, 0); x += BUTTON_WIDTH; reloadWnd = CreateWindow(L"BUTTON", L"Reload", WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON | WS_DISABLED, x, 0, BUTTON_WIDTH, URLBAR_HEIGHT, hWnd, (HMENU) IDC_NAV_RELOAD, hInst, 0); x += BUTTON_WIDTH; stopWnd = CreateWindow(L"BUTTON", L"Stop", WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON | WS_DISABLED, x, 0, BUTTON_WIDTH, URLBAR_HEIGHT, hWnd, (HMENU) IDC_NAV_STOP, hInst, 0); x += BUTTON_WIDTH; editWnd = CreateWindow(L"EDIT", 0, WS_CHILD | WS_VISIBLE | WS_BORDER | ES_LEFT | ES_AUTOVSCROLL | ES_AUTOHSCROLL| WS_DISABLED, x, 0, rect.right - BUTTON_WIDTH * 4, URLBAR_HEIGHT, hWnd, 0, hInst, 0); // Assign the edit window's WNDPROC to this function so that we can // capture the enter key editWndOldProc = reinterpret_cast<WNDPROC>(GetWindowLongPtr(editWnd, GWLP_WNDPROC)); SetWindowLongPtr(editWnd, GWLP_WNDPROC, reinterpret_cast<LONG_PTR>(WndProc)); g_handler->SetEditHwnd(editWnd); g_handler->SetButtonHwnds(backWnd, forwardWnd, reloadWnd, stopWnd); rect.top += URLBAR_HEIGHT; CefWindowInfo info; CefBrowserSettings settings; if (AppIsOffScreenRenderingEnabled()) { CefRefPtr<CefCommandLine> cmd_line = AppGetCommandLine(); bool transparent = cmd_line->HasSwitch(cefclient::kTransparentPaintingEnabled); CefRefPtr<OSRWindow> osr_window = OSRWindow::Create(&g_main_browser_provider, transparent); osr_window->CreateWidget(hWnd, rect, hInst, szOSRWindowClass); info.SetAsOffScreen(osr_window->hwnd()); info.SetTransparentPainting(transparent ? TRUE : FALSE); g_handler->SetOSRHandler(osr_window.get()); } else { // Initialize window info to the defaults for a child window. info.SetAsChild(hWnd, rect); } // Creat the new child browser window CefBrowserHost::CreateBrowser(info, g_handler.get(), g_handler->GetStartupURL(), settings, NULL); return 0; } case WM_COMMAND: { CefRefPtr<CefBrowser> browser; if (g_handler.get()) browser = g_handler->GetBrowser(); wmId = LOWORD(wParam); wmEvent = HIWORD(wParam); // Parse the menu selections: switch (wmId) { case IDM_ABOUT: DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About); return 0; case IDM_EXIT: if (g_handler.get()) g_handler->CloseAllBrowsers(false); return 0; case ID_WARN_CONSOLEMESSAGE: if (g_handler.get()) { std::wstringstream ss; ss << L"Console messages will be written to " << std::wstring(CefString(g_handler->GetLogFile())); MessageBox(hWnd, ss.str().c_str(), L"Console Messages", MB_OK | MB_ICONINFORMATION); } return 0; case ID_WARN_DOWNLOADCOMPLETE: case ID_WARN_DOWNLOADERROR: if (g_handler.get()) { std::wstringstream ss; ss << L"File \"" << std::wstring(CefString(g_handler->GetLastDownloadFile())) << L"\" "; if (wmId == ID_WARN_DOWNLOADCOMPLETE) ss << L"downloaded successfully."; else ss << L"failed to download."; MessageBox(hWnd, ss.str().c_str(), L"File Download", MB_OK | MB_ICONINFORMATION); } return 0; case ID_FIND: if (!hFindDlg) { // Create the find dialog. ZeroMemory(&fr, sizeof(fr)); fr.lStructSize = sizeof(fr); fr.hwndOwner = hWnd; fr.lpstrFindWhat = szFindWhat; fr.wFindWhatLen = sizeof(szFindWhat); fr.Flags = FR_HIDEWHOLEWORD | FR_DOWN; hFindDlg = FindText(&fr); } else { // Give focus to the existing find dialog. ::SetFocus(hFindDlg); } return 0; case IDC_NAV_BACK: // Back button if (browser.get()) browser->GoBack(); return 0; case IDC_NAV_FORWARD: // Forward button if (browser.get()) browser->GoForward(); return 0; case IDC_NAV_RELOAD: // Reload button if (browser.get()) browser->Reload(); return 0; case IDC_NAV_STOP: // Stop button if (browser.get()) browser->StopLoad(); return 0; case ID_TESTS_GETSOURCE: // Test the GetSource function if (browser.get()) RunGetSourceTest(browser); return 0; case ID_TESTS_GETTEXT: // Test the GetText function if (browser.get()) RunGetTextTest(browser); return 0; case ID_TESTS_POPUP: // Test a popup window if (browser.get()) RunPopupTest(browser); return 0; case ID_TESTS_REQUEST: // Test a request if (browser.get()) RunRequestTest(browser); return 0; case ID_TESTS_PLUGIN_INFO: // Test plugin info if (browser.get()) RunPluginInfoTest(browser); return 0; case ID_TESTS_ZOOM_IN: if (browser.get()) ModifyZoom(browser, 0.5); return 0; case ID_TESTS_ZOOM_OUT: if (browser.get()) ModifyZoom(browser, -0.5); return 0; case ID_TESTS_ZOOM_RESET: if (browser.get()) browser->GetHost()->SetZoomLevel(0.0); return 0; case ID_TESTS_TRACING_BEGIN: g_handler->BeginTracing(); return 0; case ID_TESTS_TRACING_END: g_handler->EndTracing(); return 0; case ID_TESTS_PRINT: if(browser.get()) browser->GetHost()->Print(); return 0; case ID_TESTS_OTHER_TESTS: if (browser.get()) RunOtherTests(browser); return 0; } break; } case WM_PAINT: hdc = BeginPaint(hWnd, &ps); EndPaint(hWnd, &ps); return 0; case WM_SETFOCUS: if (g_handler.get() && g_handler->GetBrowser()) { if (AppIsOffScreenRenderingEnabled()) { // Give focus to the OSR window. CefRefPtr<OSRWindow> osr_window = static_cast<OSRWindow*>(g_handler->GetOSRHandler().get()); if (osr_window) ::SetFocus(osr_window->hwnd()); } else { // Give focus to the browser. g_handler->GetBrowser()->GetHost()->SetFocus(true); } } return 0; case WM_SIZE: // Minimizing resizes the window to 0x0 which causes our layout to go all // screwy, so we just ignore it. if (wParam != SIZE_MINIMIZED && g_handler.get() && g_handler->GetBrowser()) { CefWindowHandle hwnd = g_handler->GetBrowser()->GetHost()->GetWindowHandle(); if (hwnd) { // Resize the browser window and address bar to match the new frame // window size RECT rect; GetClientRect(hWnd, &rect); rect.top += URLBAR_HEIGHT; 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); } } break; case WM_ERASEBKGND: if (g_handler.get() && g_handler->GetBrowser()) { CefWindowHandle hwnd = g_handler->GetBrowser()->GetHost()->GetWindowHandle(); if (hwnd) { // Dont erase the background if the browser window has been loaded // (this avoids flashing) return 0; } } break; case WM_ENTERMENULOOP: if (!wParam) { // Entering the menu loop for the application menu. CefSetOSModalLoop(true); } break; case WM_EXITMENULOOP: if (!wParam) { // Exiting the menu loop for the application menu. CefSetOSModalLoop(false); } break; case WM_CLOSE: if (g_handler.get() && !g_handler->IsClosing()) { CefRefPtr<CefBrowser> browser = g_handler->GetBrowser(); if (browser.get()) { // Notify the browser window that we would like to close it. This // will result in a call to ClientHandler::DoClose() if the // JavaScript 'onbeforeunload' event handler allows it. browser->GetHost()->CloseBrowser(false); // Cancel the close. return 0; } } // Allow the close. break; case WM_DESTROY: // Quitting CEF is handled in ClientHandler::OnBeforeClose(). return 0; } return DefWindowProc(hWnd, message, wParam, lParam); } }
// Callback for Debug > Begin Tracing menu item. gboolean BeginTracingActivated(GtkWidget* widget) { if (g_handler.get()) g_handler->BeginTracing(); return FALSE; // Don't stop this message. }