Tools/MiniBrowser/win/MainWindow.cpp - WebKit - Git at Google

 /*
  * Copyright (C) 2018 Sony Interactive Entertainment Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */

 #include "stdafx.h"
 #include "MainWindow.h"

 #include "Common.h"
 #include "MiniBrowserLibResource.h"
 #include <sstream>

 #if USE(CF)
 #include <CoreFoundation/CoreFoundation.h>
 #endif

 #if ENABLE(WEBKIT)
 #include "WebKitBrowserWindow.h"
 #endif

 #if ENABLE(WEBKIT_LEGACY)
 #include "WebKitLegacyBrowserWindow.h"
 #endif

 namespace WebCore {
 float deviceScaleFactorForWindow(HWND);
 }

 static const wchar_t* kMiniBrowserRegistryKey = L"Software\\WebKit\\MiniBrowser";

 static constexpr int kToolbarImageSize = 32;
 static constexpr int kToolbarURLBarIndex = 4;
 static constexpr int kToolbarProgressIndicatorIndex = 5;

 static WNDPROC DefEditProc = nullptr;

 static LRESULT CALLBACK EditProc(HWND, UINT, WPARAM, LPARAM);
 static INT_PTR CALLBACK About(HWND, UINT, WPARAM, LPARAM);

 std::wstring MainWindow::s_windowClass;
 size_t MainWindow::s_numInstances;

 static std::wstring loadString(int id)
 {
     constexpr size_t length = 100;
     wchar_t buff[length];
     LoadString(hInst, id, buff, length);
     return buff;
 }

 void MainWindow::registerClass(HINSTANCE hInstance)
 {
     static bool initialized = false;
     if (initialized)
         return;
     initialized = true;

     s_windowClass = loadString(IDC_MINIBROWSER);

     WNDCLASSEX wcex;
     wcex.cbSize = sizeof(WNDCLASSEX);
     wcex.style          = CS_HREDRAW | CS_VREDRAW;
     wcex.lpfnWndProc    = WndProc;
     wcex.cbClsExtra     = 0;
     wcex.cbWndExtra     = 0;
     wcex.hInstance      = hInstance;
     wcex.hIcon          = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_MINIBROWSER));
     wcex.hCursor        = LoadCursor(0, IDC_ARROW);
     wcex.hbrBackground  = 0;
     wcex.lpszMenuName   = MAKEINTRESOURCE(IDC_MINIBROWSER);
     wcex.lpszClassName  = s_windowClass.c_str();
     wcex.hIconSm        = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));

     RegisterClassEx(&wcex);
 }

 bool MainWindow::isInstance(HWND hwnd)
 {
     wchar_t buff[64];
     if (!GetClassName(hwnd, buff, _countof(buff)))
         return false;
     return s_windowClass == buff;
 }

 MainWindow::MainWindow()
 {
     s_numInstances++;
 }

 MainWindow::~MainWindow()
 {
     s_numInstances--;
 }

 Ref<MainWindow> MainWindow::create()
 {
     return adoptRef(*new MainWindow());
 }

 void MainWindow::createToolbar(HINSTANCE hInstance)
 {
     m_hToolbarWnd = CreateWindowEx(0, TOOLBARCLASSNAME, nullptr,
         WS_CHILD | WS_BORDER | TBSTYLE_FLAT | TBSTYLE_LIST | TBSTYLE_TOOLTIPS, 0, 0, 0, 0,
         m_hMainWnd, nullptr, hInstance, nullptr);

     if (!m_hToolbarWnd)
         return;

     const int ImageListID = 0;
     const int numButtons = 4;

     HIMAGELIST hImageList;
     hImageList = ImageList_LoadImage(hInstance, MAKEINTRESOURCE(IDB_TOOLBAR), kToolbarImageSize, 0, CLR_DEFAULT, IMAGE_BITMAP, 0);

     SendMessage(m_hToolbarWnd, TB_SETIMAGELIST, ImageListID, reinterpret_cast<LPARAM>(hImageList));
     SendMessage(m_hToolbarWnd, TB_SETEXTENDEDSTYLE, 0, TBSTYLE_EX_DRAWDDARROWS | TBSTYLE_EX_MIXEDBUTTONS);

     const DWORD buttonStyles = BTNS_AUTOSIZE;

     TBBUTTON tbButtons[] = {
         { MAKELONG(0, ImageListID), IDM_HISTORY_BACKWARD, TBSTATE_ENABLED, buttonStyles | BTNS_DROPDOWN, { }, 0, (INT_PTR)L"Back" },
         { MAKELONG(1, ImageListID), IDM_HISTORY_FORWARD, TBSTATE_ENABLED, buttonStyles | BTNS_DROPDOWN, { }, 0, (INT_PTR)L"Forward"},
         { MAKELONG(2, ImageListID), IDM_RELOAD, TBSTATE_ENABLED, buttonStyles, { }, 0, (INT_PTR)L"Reload"},
         { MAKELONG(3, ImageListID), IDM_GO_HOME, TBSTATE_ENABLED, buttonStyles, { }, 0, (INT_PTR)L"Home"},
         { 0, 0, TBSTATE_ENABLED, BTNS_SEP, { }, 0, 0}, // URL bar
         { 0, 0, TBSTATE_ENABLED, BTNS_SEP, { }, 0, 0}, // Progress indicator
     };
     ASSERT(tbButtons[kToolbarURLBarIndex].fsStyle == BTNS_SEP);
     ASSERT(tbButtons[kToolbarProgressIndicatorIndex].fsStyle == BTNS_SEP);

     SendMessage(m_hToolbarWnd, TB_BUTTONSTRUCTSIZE, sizeof(TBBUTTON), 0);
     SendMessage(m_hToolbarWnd, TB_ADDBUTTONS, _countof(tbButtons), reinterpret_cast<LPARAM>(&tbButtons));
     ShowWindow(m_hToolbarWnd, true);

     m_hURLBarWnd = CreateWindow(L"EDIT", 0, WS_CHILD | WS_VISIBLE | WS_BORDER | ES_LEFT | ES_AUTOVSCROLL, 0, 0, 0, 0, m_hToolbarWnd, 0, hInstance, 0);
     m_hProgressIndicator = CreateWindow(L"STATIC", 0, WS_CHILD | WS_VISIBLE | SS_CENTER | SS_CENTERIMAGE, 0, 0, 0, 0, m_hToolbarWnd, 0, hInstance, 0);

     DefEditProc = reinterpret_cast<WNDPROC>(GetWindowLongPtr(m_hURLBarWnd, GWLP_WNDPROC));
     SetWindowLongPtr(m_hURLBarWnd, GWLP_WNDPROC, reinterpret_cast<LONG_PTR>(EditProc));
 }

 void MainWindow::resizeToolbar(int parentWidth)
 {
     TBBUTTONINFO info { sizeof(TBBUTTONINFO), TBIF_BYINDEX | TBIF_SIZE };
     info.cx = parentWidth - m_toolbarItemsWidth;
     SendMessage(m_hToolbarWnd, TB_SETBUTTONINFO, kToolbarURLBarIndex, reinterpret_cast<LPARAM>(&info));

     SendMessage(m_hToolbarWnd, TB_AUTOSIZE, 0, 0);

     RECT rect;
     SendMessage(m_hToolbarWnd, TB_GETITEMRECT, kToolbarURLBarIndex, reinterpret_cast<LPARAM>(&rect));
     MoveWindow(m_hURLBarWnd, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, true);

     SendMessage(m_hToolbarWnd, TB_GETITEMRECT, kToolbarProgressIndicatorIndex, reinterpret_cast<LPARAM>(&rect));
     MoveWindow(m_hProgressIndicator, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, true);
 }

 void MainWindow::rescaleToolbar()
 {
     const float scaleFactor = WebCore::deviceScaleFactorForWindow(m_hMainWnd);
     const int scaledImageSize = kToolbarImageSize * scaleFactor;

     TBBUTTONINFO info { sizeof(TBBUTTONINFO), TBIF_BYINDEX | TBIF_SIZE };

     info.cx = 0;
     SendMessage(m_hToolbarWnd, TB_SETBUTTONINFO, kToolbarURLBarIndex, reinterpret_cast<LPARAM>(&info));
     info.cx = scaledImageSize * 2;
     SendMessage(m_hToolbarWnd, TB_SETBUTTONINFO, kToolbarProgressIndicatorIndex, reinterpret_cast<LPARAM>(&info));

     SendMessage(m_hToolbarWnd, TB_AUTOSIZE, 0, 0);

     int numItems = SendMessage(m_hToolbarWnd, TB_BUTTONCOUNT, 0, 0);

     RECT rect;
     SendMessage(m_hToolbarWnd, TB_GETITEMRECT, numItems-1, reinterpret_cast<LPARAM>(&rect));
     m_toolbarItemsWidth = rect.right;
 }

 bool MainWindow::init(BrowserWindowFactory factory, HINSTANCE hInstance, bool usesLayeredWebView)
 {
     registerClass(hInstance);

     auto title = loadString(IDS_APP_TITLE);

     m_hMainWnd = CreateWindow(s_windowClass.c_str(), title.c_str(), WS_OVERLAPPEDWINDOW,
         CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, 0, 0, hInstance, this);

     if (!m_hMainWnd)
         return false;

 #if !ENABLE(WEBKIT)
     EnableMenuItem(GetMenu(m_hMainWnd), IDM_NEW_WEBKIT_WINDOW, MF_GRAYED);
 #endif
 #if !ENABLE(WEBKIT_LEGACY)
     EnableMenuItem(GetMenu(m_hMainWnd), IDM_NEW_WEBKITLEGACY_WINDOW, MF_GRAYED);
 #endif

     createToolbar(hInstance);
     if (!m_hToolbarWnd)
         return false;

     m_browserWindow = factory(*this, m_hMainWnd, usesLayeredWebView);
     if (!m_browserWindow)
         return false;
     HRESULT hr = m_browserWindow->init();
     if (FAILED(hr))
         return false;

     updateDeviceScaleFactor();
     resizeSubViews();
     SetFocus(m_hURLBarWnd);
     return true;
 }

 void MainWindow::resizeSubViews()
 {
     RECT rcClient;
     GetClientRect(m_hMainWnd, &rcClient);

     resizeToolbar(rcClient.right);

     if (m_browserWindow->usesLayeredWebView() || !m_browserWindow->hwnd())
         return;

     RECT rect;
     GetWindowRect(m_hToolbarWnd, &rect);
     POINT toolbarBottom = { 0, rect.bottom };
     ScreenToClient(m_hMainWnd, &toolbarBottom);
     auto height = toolbarBottom.y;
     MoveWindow(m_browserWindow->hwnd(), 0, height, rcClient.right, rcClient.bottom - height, true);
 }

 LRESULT CALLBACK MainWindow::WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 {
     LRESULT result = 0;
     RefPtr<MainWindow> thisWindow = reinterpret_cast<MainWindow*>(GetWindowLongPtr(hWnd, GWLP_USERDATA));
     switch (message) {
     case WM_ACTIVATE:
         switch (LOWORD(wParam)) {
         case WA_ACTIVE:
         case WA_CLICKACTIVE:
             SetFocus(thisWindow->browserWindow()->hwnd());
         }
         break;
     case WM_CREATE:
         SetWindowLongPtr(hWnd, GWLP_USERDATA, reinterpret_cast<LONG_PTR>(reinterpret_cast<LPCREATESTRUCT>(lParam)->lpCreateParams));
         break;
     case WM_APPCOMMAND: {
         auto cmd = GET_APPCOMMAND_LPARAM(lParam);
         switch (cmd) {
         case APPCOMMAND_BROWSER_BACKWARD:
             thisWindow->browserWindow()->navigateForwardOrBackward(false);
             result = 1;
             break;
         case APPCOMMAND_BROWSER_FORWARD:
             thisWindow->browserWindow()->navigateForwardOrBackward(true);
             result = 1;
             break;
         case APPCOMMAND_BROWSER_HOME:
             thisWindow->goHome();
             break;
         case APPCOMMAND_BROWSER_REFRESH:
             thisWindow->browserWindow()->reload();
             result = 1;
             break;
         case APPCOMMAND_BROWSER_STOP:
             break;
         }
         break;
     }
     case WM_COMMAND: {
         int wmId = LOWORD(wParam);
         int wmEvent = HIWORD(wParam);
         switch (wmEvent) {
         case 0: // Menu or BN_CLICKED
         case 1: // Accelerator
             break;
         default:
             return DefWindowProc(hWnd, message, wParam, lParam);
         }
         if (wmId >= IDM_HISTORY_LINK0 && wmId <= IDM_HISTORY_LINK9) {
             thisWindow->browserWindow()->navigateToHistory(wmId);
             break;
         }
         // Parse the menu selections:
         switch (wmId) {
         case IDC_URL_BAR:
             thisWindow->onURLBarEnter();
             break;
 #if ENABLE(WEBKIT)
         case IDM_NEW_WEBKIT_WINDOW: {
             auto& newWindow = MainWindow::create().leakRef();
             newWindow.init(WebKitBrowserWindow::create, hInst);
             ShowWindow(newWindow.hwnd(), SW_SHOW);
             break;
         }
 #endif
 #if ENABLE(WEBKIT_LEGACY)
         case IDM_NEW_WEBKITLEGACY_WINDOW: {
             auto& newWindow = MainWindow::create().leakRef();
             newWindow.init(WebKitLegacyBrowserWindow::create, hInst);
             ShowWindow(newWindow.hwnd(), SW_SHOW);
             break;
         }
 #endif
         case IDM_CLOSE_WINDOW:
             PostMessage(hWnd, WM_CLOSE, 0, 0);
             break;
         case IDM_ABOUT:
             DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);
             break;
         case IDM_GO_HOME:
             thisWindow->goHome();
             break;
         case IDM_EXIT:
             DestroyWindow(hWnd);
             break;
         case IDM_PRINT:
             thisWindow->browserWindow()->print();
             break;
         case IDM_WEB_INSPECTOR:
             thisWindow->browserWindow()->launchInspector();
             break;
         case IDM_PROXY_SETTINGS:
             thisWindow->browserWindow()->openProxySettings();
             break;
         case IDM_SET_DEFAULT_URL:
             thisWindow->setDefaultURLToCurrentURL();
             break;
         case IDM_CACHES:
             if (!::IsWindow(thisWindow->m_hCacheWnd)) {
                 thisWindow->m_hCacheWnd = CreateDialogParam(hInst, MAKEINTRESOURCE(IDD_CACHES), hWnd, cachesDialogProc, reinterpret_cast<LPARAM>(thisWindow.get()));
                 ::ShowWindow(thisWindow->m_hCacheWnd, SW_SHOW);
             }
             break;
         case IDM_HISTORY_BACKWARD:
         case IDM_HISTORY_FORWARD:
             thisWindow->browserWindow()->navigateForwardOrBackward(wmId == IDM_HISTORY_FORWARD);
             break;
         case IDM_UA_OTHER:
             DialogBoxParam(hInst, MAKEINTRESOURCE(IDD_USER_AGENT), hWnd, customUserAgentDialogProc, reinterpret_cast<LPARAM>(thisWindow.get()));
             break;
         case IDM_ACTUAL_SIZE:
             thisWindow->browserWindow()->resetZoom();
             break;
         case IDM_RELOAD:
             thisWindow->browserWindow()->reload();
             break;
         case IDM_ZOOM_IN:
             thisWindow->browserWindow()->zoomIn();
             break;
         case IDM_ZOOM_OUT:
             thisWindow->browserWindow()->zoomOut();
             break;
         case IDM_SHOW_LAYER_TREE:
             thisWindow->browserWindow()->showLayerTree();
             break;
         default:
             if (!thisWindow->toggleMenuItem(wmId))
                 return DefWindowProc(hWnd, message, wParam, lParam);
         }
         }
         break;
     case WM_DESTROY:
         SetWindowLongPtr(hWnd, GWLP_USERDATA, 0);
         thisWindow->deref();
         if (s_numInstances > 1)
             return 0;
 #if USE(CF)
         CFRunLoopStop(CFRunLoopGetMain());
 #endif
         PostQuitMessage(0);
         break;
     case WM_SIZE:
         thisWindow->resizeSubViews();
         break;
     case WM_DPICHANGED: {
         thisWindow->updateDeviceScaleFactor();
         auto& rect = *reinterpret_cast<RECT*>(lParam);
         SetWindowPos(hWnd, nullptr, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, SWP_NOZORDER | SWP_NOACTIVATE);
         break;
     }
     default:
         return DefWindowProc(hWnd, message, wParam, lParam);
     }

     return result;
 }

 static bool menuItemIsChecked(const MENUITEMINFO& info)
 {
     return info.fState & MFS_CHECKED;
 }

 static void turnOffOtherUserAgents(HMENU menu)
 {
     MENUITEMINFO info;
     ::memset(&info, 0x00, sizeof(info));
     info.cbSize = sizeof(info);
     info.fMask = MIIM_STATE;

     // Must unset the other menu items:
     for (UINT menuToClear = IDM_UA_DEFAULT; menuToClear <= IDM_UA_OTHER; ++menuToClear) {
         if (!::GetMenuItemInfo(menu, menuToClear, FALSE, &info))
             continue;
         if (!menuItemIsChecked(info))
             continue;

         info.fState = MFS_UNCHECKED;
         ::SetMenuItemInfo(menu, menuToClear, FALSE, &info);
     }
 }

 void MainWindow::setDefaultURLToCurrentURL()
 {
     wchar_t url[INTERNET_MAX_URL_LENGTH];
     GetWindowText(m_hURLBarWnd, url, INTERNET_MAX_URL_LENGTH);
     auto length = wcslen(url);
     if (!length)
         return;
     RegSetKeyValue(HKEY_CURRENT_USER, kMiniBrowserRegistryKey, L"DefaultURL", REG_SZ, url, (length + 1) * sizeof(wchar_t));
 }

 bool MainWindow::toggleMenuItem(UINT menuID)
 {
     HMENU menu = ::GetMenu(hwnd());

     switch (menuID) {
     case IDM_UA_DEFAULT:
     case IDM_UA_SAFARI:
     case IDM_UA_SAFARI_IOS_IPHONE:
     case IDM_UA_SAFARI_IOS_IPAD:
     case IDM_UA_EDGE:
     case IDM_UA_IE_11:
     case IDM_UA_CHROME_MAC:
     case IDM_UA_CHROME_WIN:
     case IDM_UA_FIREFOX_MAC:
     case IDM_UA_FIREFOX_WIN:
         m_browserWindow->setUserAgent(menuID);
         turnOffOtherUserAgents(menu);
         break;
     case IDM_UA_OTHER:
         // The actual user agent string will be set by the custom user agent dialog
         turnOffOtherUserAgents(menu);
         break;
     }

     MENUITEMINFO info = { };
     info.cbSize = sizeof(info);
     info.fMask = MIIM_STATE;

     if (!::GetMenuItemInfo(menu, menuID, FALSE, &info))
         return false;

     BOOL newState = !menuItemIsChecked(info);
     info.fState = (newState) ? MFS_CHECKED : MFS_UNCHECKED;
     ::SetMenuItemInfo(menu, menuID, FALSE, &info);

     m_browserWindow->setPreference(menuID, newState);

     return true;
 }

 LRESULT CALLBACK EditProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 {
     switch (message) {
     case WM_SETFOCUS:
         PostMessage(hWnd, EM_SETSEL, 0, -1);
         break;
     case WM_CHAR:
         if (wParam == 13) {
             // Enter Key
             ::PostMessage(GetParent(hWnd), static_cast<UINT>(WM_COMMAND), MAKELPARAM(IDC_URL_BAR, 0), 0);
             return 0;
         }
         break;
     }
     return CallWindowProc(DefEditProc, hWnd, message, wParam, lParam);
 }

 // Message handler for about box.
 INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
 {
     UNREFERENCED_PARAMETER(lParam);
     switch (message) {
     case WM_INITDIALOG:
         return (INT_PTR)TRUE;

     case WM_COMMAND:
         if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL) {
             EndDialog(hDlg, LOWORD(wParam));
             return (INT_PTR)TRUE;
         }
         break;
     }
     return (INT_PTR)FALSE;
 }

 INT_PTR CALLBACK MainWindow::cachesDialogProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
 {
     MainWindow& thisWindow = *reinterpret_cast<MainWindow*>(GetWindowLongPtr(hDlg, DWLP_USER));
     switch (message) {
     case WM_INITDIALOG:
         SetWindowLongPtr(hDlg, DWLP_USER, lParam);
         ::SetTimer(hDlg, IDT_UPDATE_STATS, 1000, nullptr);
         return (INT_PTR)TRUE;

     case WM_COMMAND:
         if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL) {
             ::KillTimer(hDlg, IDT_UPDATE_STATS);
             ::DestroyWindow(hDlg);
             thisWindow.m_hCacheWnd = 0;
             return (INT_PTR)TRUE;
         }
         break;

     case IDT_UPDATE_STATS:
         ::InvalidateRect(hDlg, nullptr, FALSE);
         return (INT_PTR)TRUE;

     case WM_PAINT:
         thisWindow.browserWindow()->updateStatistics(hDlg);
         break;
     }

     return (INT_PTR)FALSE;
 }

 INT_PTR CALLBACK MainWindow::customUserAgentDialogProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
 {
     MainWindow& thisWindow = *reinterpret_cast<MainWindow*>(GetWindowLongPtr(hDlg, DWLP_USER));
     switch (message) {
     case WM_INITDIALOG: {
         MainWindow& thisWindow = *reinterpret_cast<MainWindow*>(lParam);
         SetWindowLongPtr(hDlg, DWLP_USER, lParam);
         HWND edit = ::GetDlgItem(hDlg, IDC_USER_AGENT_INPUT);
         _bstr_t userAgent;
         userAgent = thisWindow.browserWindow()->userAgent();

         ::SetWindowText(edit, static_cast<LPCTSTR>(userAgent));
         return (INT_PTR)TRUE;
     }

     case WM_COMMAND:
         if (LOWORD(wParam) == IDOK) {
             HWND edit = ::GetDlgItem(hDlg, IDC_USER_AGENT_INPUT);

             TCHAR buffer[1024];
             int strLen = ::GetWindowText(edit, buffer, 1024);
             buffer[strLen] = 0;

             _bstr_t bstr(buffer);
             if (bstr.length()) {
                 thisWindow.browserWindow()->setUserAgent(bstr);
                 thisWindow.toggleMenuItem(IDM_UA_OTHER);
             }
         }

         if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL) {
             ::EndDialog(hDlg, LOWORD(wParam));
             return (INT_PTR)TRUE;
         }
         break;
     }
     return (INT_PTR)FALSE;
 }

 void MainWindow::loadURL(std::wstring url)
 {
     if (::PathFileExists(url.c_str()) || ::PathIsUNC(url.c_str())) {
         wchar_t fileURL[INTERNET_MAX_URL_LENGTH];
         DWORD fileURLLength = _countof(fileURL);

         if (SUCCEEDED(::UrlCreateFromPath(url.c_str(), fileURL, &fileURLLength, 0)))
             url = fileURL;
     }
     if (url.find(L"://") == url.npos)
         url = L"http://" + url;

     if (FAILED(m_browserWindow->loadURL(_bstr_t(url.c_str()))))
         return;

     SetFocus(m_browserWindow->hwnd());
 }

 void MainWindow::goHome()
 {
     std::wstring defaultURL = L"https://www.webkit.org/";
     wchar_t url[INTERNET_MAX_URL_LENGTH];
     DWORD urlLength = sizeof(url);
     if (!RegGetValue(HKEY_CURRENT_USER, kMiniBrowserRegistryKey, L"DefaultURL", RRF_RT_REG_SZ, nullptr, &url, &urlLength))
         defaultURL = url;
     loadURL(defaultURL);
 }

 void MainWindow::onURLBarEnter()
 {
     wchar_t url[INTERNET_MAX_URL_LENGTH];
     GetWindowText(m_hURLBarWnd, url, INTERNET_MAX_URL_LENGTH);
     loadURL(url);
 }

 void MainWindow::updateDeviceScaleFactor()
 {
     if (m_hURLBarFont)
         ::DeleteObject(m_hURLBarFont);

     rescaleToolbar();

     RECT rect;
     GetClientRect(m_hToolbarWnd, &rect);
     int fontHeight = rect.bottom * 3. / 4;

     m_hURLBarFont = ::CreateFont(fontHeight, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, DEFAULT_CHARSET,
         OUT_TT_ONLY_PRECIS, CLIP_DEFAULT_PRECIS, CLEARTYPE_QUALITY, FF_DONTCARE, L"Tahoma");
     ::SendMessage(m_hURLBarWnd, static_cast<UINT>(WM_SETFONT), reinterpret_cast<WPARAM>(m_hURLBarFont), TRUE);
 }

 void MainWindow::progressChanged(double progress)
 {
     std::wostringstream text;
     text << static_cast<int>(progress * 100) << L'%';
     SetWindowText(m_hProgressIndicator, text.str().c_str());
 }

 void MainWindow::progressFinished()
 {
     SetWindowText(m_hProgressIndicator, L"");
 }

 void MainWindow::activeURLChanged(std::wstring url)
 {
     SetWindowText(m_hURLBarWnd, url.c_str());
 }
	/*
	* Copyright (C) 2018 Sony Interactive Entertainment Inc.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	* 1. Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	* 2. Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in the
	* documentation and/or other materials provided with the distribution.
	*
	* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
	* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
	* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
	* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
	* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	*/

	#include "stdafx.h"
	#include "MainWindow.h"

	#include "Common.h"
	#include "MiniBrowserLibResource.h"
	#include <sstream>

	#if USE(CF)
	#include <CoreFoundation/CoreFoundation.h>
	#endif

	#if ENABLE(WEBKIT)
	#include "WebKitBrowserWindow.h"
	#endif

	#if ENABLE(WEBKIT_LEGACY)
	#include "WebKitLegacyBrowserWindow.h"
	#endif

	namespace WebCore {
	float deviceScaleFactorForWindow(HWND);
	}

	static const wchar_t* kMiniBrowserRegistryKey = L"Software\\WebKit\\MiniBrowser";

	static constexpr int kToolbarImageSize = 32;
	static constexpr int kToolbarURLBarIndex = 4;
	static constexpr int kToolbarProgressIndicatorIndex = 5;

	static WNDPROC DefEditProc = nullptr;

	static LRESULT CALLBACK EditProc(HWND, UINT, WPARAM, LPARAM);
	static INT_PTR CALLBACK About(HWND, UINT, WPARAM, LPARAM);

	std::wstring MainWindow::s_windowClass;
	size_t MainWindow::s_numInstances;

	static std::wstring loadString(int id)
	{
	constexpr size_t length = 100;
	wchar_t buff[length];
	LoadString(hInst, id, buff, length);
	return buff;
	}

	void MainWindow::registerClass(HINSTANCE hInstance)
	{
	static bool initialized = false;
	if (initialized)
	return;
	initialized = true;

	s_windowClass = loadString(IDC_MINIBROWSER);

	WNDCLASSEX wcex;
	wcex.cbSize = sizeof(WNDCLASSEX);
	wcex.style = CS_HREDRAW \| CS_VREDRAW;
	wcex.lpfnWndProc = WndProc;
	wcex.cbClsExtra = 0;
	wcex.cbWndExtra = 0;
	wcex.hInstance = hInstance;
	wcex.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_MINIBROWSER));
	wcex.hCursor = LoadCursor(0, IDC_ARROW);
	wcex.hbrBackground = 0;
	wcex.lpszMenuName = MAKEINTRESOURCE(IDC_MINIBROWSER);
	wcex.lpszClassName = s_windowClass.c_str();
	wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));

	RegisterClassEx(&wcex);
	}

	bool MainWindow::isInstance(HWND hwnd)
	{
	wchar_t buff[64];
	if (!GetClassName(hwnd, buff, _countof(buff)))
	return false;
	return s_windowClass == buff;
	}

	MainWindow::MainWindow()
	{
	s_numInstances++;
	}

	MainWindow::~MainWindow()
	{
	s_numInstances--;
	}

	Ref<MainWindow> MainWindow::create()
	{
	return adoptRef(*new MainWindow());
	}

	void MainWindow::createToolbar(HINSTANCE hInstance)
	{
	m_hToolbarWnd = CreateWindowEx(0, TOOLBARCLASSNAME, nullptr,
	WS_CHILD \| WS_BORDER \| TBSTYLE_FLAT \| TBSTYLE_LIST \| TBSTYLE_TOOLTIPS, 0, 0, 0, 0,
	m_hMainWnd, nullptr, hInstance, nullptr);

	if (!m_hToolbarWnd)
	return;

	const int ImageListID = 0;
	const int numButtons = 4;

	HIMAGELIST hImageList;
	hImageList = ImageList_LoadImage(hInstance, MAKEINTRESOURCE(IDB_TOOLBAR), kToolbarImageSize, 0, CLR_DEFAULT, IMAGE_BITMAP, 0);

	SendMessage(m_hToolbarWnd, TB_SETIMAGELIST, ImageListID, reinterpret_cast<LPARAM>(hImageList));
	SendMessage(m_hToolbarWnd, TB_SETEXTENDEDSTYLE, 0, TBSTYLE_EX_DRAWDDARROWS \| TBSTYLE_EX_MIXEDBUTTONS);

	const DWORD buttonStyles = BTNS_AUTOSIZE;

	TBBUTTON tbButtons[] = {
	{ MAKELONG(0, ImageListID), IDM_HISTORY_BACKWARD, TBSTATE_ENABLED, buttonStyles \| BTNS_DROPDOWN, { }, 0, (INT_PTR)L"Back" },
	{ MAKELONG(1, ImageListID), IDM_HISTORY_FORWARD, TBSTATE_ENABLED, buttonStyles \| BTNS_DROPDOWN, { }, 0, (INT_PTR)L"Forward"},
	{ MAKELONG(2, ImageListID), IDM_RELOAD, TBSTATE_ENABLED, buttonStyles, { }, 0, (INT_PTR)L"Reload"},
	{ MAKELONG(3, ImageListID), IDM_GO_HOME, TBSTATE_ENABLED, buttonStyles, { }, 0, (INT_PTR)L"Home"},
	{ 0, 0, TBSTATE_ENABLED, BTNS_SEP, { }, 0, 0}, // URL bar
	{ 0, 0, TBSTATE_ENABLED, BTNS_SEP, { }, 0, 0}, // Progress indicator
	};
	ASSERT(tbButtons[kToolbarURLBarIndex].fsStyle == BTNS_SEP);
	ASSERT(tbButtons[kToolbarProgressIndicatorIndex].fsStyle == BTNS_SEP);

	SendMessage(m_hToolbarWnd, TB_BUTTONSTRUCTSIZE, sizeof(TBBUTTON), 0);
	SendMessage(m_hToolbarWnd, TB_ADDBUTTONS, _countof(tbButtons), reinterpret_cast<LPARAM>(&tbButtons));
	ShowWindow(m_hToolbarWnd, true);

	m_hURLBarWnd = CreateWindow(L"EDIT", 0, WS_CHILD \| WS_VISIBLE \| WS_BORDER \| ES_LEFT \| ES_AUTOVSCROLL, 0, 0, 0, 0, m_hToolbarWnd, 0, hInstance, 0);
	m_hProgressIndicator = CreateWindow(L"STATIC", 0, WS_CHILD \| WS_VISIBLE \| SS_CENTER \| SS_CENTERIMAGE, 0, 0, 0, 0, m_hToolbarWnd, 0, hInstance, 0);

	DefEditProc = reinterpret_cast<WNDPROC>(GetWindowLongPtr(m_hURLBarWnd, GWLP_WNDPROC));
	SetWindowLongPtr(m_hURLBarWnd, GWLP_WNDPROC, reinterpret_cast<LONG_PTR>(EditProc));
	}

	void MainWindow::resizeToolbar(int parentWidth)
	{
	TBBUTTONINFO info { sizeof(TBBUTTONINFO), TBIF_BYINDEX \| TBIF_SIZE };
	info.cx = parentWidth - m_toolbarItemsWidth;
	SendMessage(m_hToolbarWnd, TB_SETBUTTONINFO, kToolbarURLBarIndex, reinterpret_cast<LPARAM>(&info));

	SendMessage(m_hToolbarWnd, TB_AUTOSIZE, 0, 0);

	RECT rect;
	SendMessage(m_hToolbarWnd, TB_GETITEMRECT, kToolbarURLBarIndex, reinterpret_cast<LPARAM>(&rect));
	MoveWindow(m_hURLBarWnd, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, true);

	SendMessage(m_hToolbarWnd, TB_GETITEMRECT, kToolbarProgressIndicatorIndex, reinterpret_cast<LPARAM>(&rect));
	MoveWindow(m_hProgressIndicator, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, true);
	}

	void MainWindow::rescaleToolbar()
	{
	const float scaleFactor = WebCore::deviceScaleFactorForWindow(m_hMainWnd);
	const int scaledImageSize = kToolbarImageSize * scaleFactor;

	TBBUTTONINFO info { sizeof(TBBUTTONINFO), TBIF_BYINDEX \| TBIF_SIZE };

	info.cx = 0;
	SendMessage(m_hToolbarWnd, TB_SETBUTTONINFO, kToolbarURLBarIndex, reinterpret_cast<LPARAM>(&info));
	info.cx = scaledImageSize * 2;
	SendMessage(m_hToolbarWnd, TB_SETBUTTONINFO, kToolbarProgressIndicatorIndex, reinterpret_cast<LPARAM>(&info));

	SendMessage(m_hToolbarWnd, TB_AUTOSIZE, 0, 0);

	int numItems = SendMessage(m_hToolbarWnd, TB_BUTTONCOUNT, 0, 0);

	RECT rect;
	SendMessage(m_hToolbarWnd, TB_GETITEMRECT, numItems-1, reinterpret_cast<LPARAM>(&rect));
	m_toolbarItemsWidth = rect.right;
	}

	bool MainWindow::init(BrowserWindowFactory factory, HINSTANCE hInstance, bool usesLayeredWebView)
	{
	registerClass(hInstance);

	auto title = loadString(IDS_APP_TITLE);

	m_hMainWnd = CreateWindow(s_windowClass.c_str(), title.c_str(), WS_OVERLAPPEDWINDOW,
	CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, 0, 0, hInstance, this);

	if (!m_hMainWnd)
	return false;

	#if !ENABLE(WEBKIT)
	EnableMenuItem(GetMenu(m_hMainWnd), IDM_NEW_WEBKIT_WINDOW, MF_GRAYED);
	#endif
	#if !ENABLE(WEBKIT_LEGACY)
	EnableMenuItem(GetMenu(m_hMainWnd), IDM_NEW_WEBKITLEGACY_WINDOW, MF_GRAYED);
	#endif

	createToolbar(hInstance);
	if (!m_hToolbarWnd)
	return false;

	m_browserWindow = factory(*this, m_hMainWnd, usesLayeredWebView);
	if (!m_browserWindow)
	return false;
	HRESULT hr = m_browserWindow->init();
	if (FAILED(hr))
	return false;

	updateDeviceScaleFactor();
	resizeSubViews();
	SetFocus(m_hURLBarWnd);
	return true;
	}

	void MainWindow::resizeSubViews()
	{
	RECT rcClient;
	GetClientRect(m_hMainWnd, &rcClient);

	resizeToolbar(rcClient.right);

	if (m_browserWindow->usesLayeredWebView() \|\| !m_browserWindow->hwnd())
	return;

	RECT rect;
	GetWindowRect(m_hToolbarWnd, &rect);
	POINT toolbarBottom = { 0, rect.bottom };
	ScreenToClient(m_hMainWnd, &toolbarBottom);
	auto height = toolbarBottom.y;
	MoveWindow(m_browserWindow->hwnd(), 0, height, rcClient.right, rcClient.bottom - height, true);
	}

	LRESULT CALLBACK MainWindow::WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
	{
	LRESULT result = 0;
	RefPtr<MainWindow> thisWindow = reinterpret_cast<MainWindow*>(GetWindowLongPtr(hWnd, GWLP_USERDATA));
	switch (message) {
	case WM_ACTIVATE:
	switch (LOWORD(wParam)) {
	case WA_ACTIVE:
	case WA_CLICKACTIVE:
	SetFocus(thisWindow->browserWindow()->hwnd());
	}
	break;
	case WM_CREATE:
	SetWindowLongPtr(hWnd, GWLP_USERDATA, reinterpret_cast<LONG_PTR>(reinterpret_cast<LPCREATESTRUCT>(lParam)->lpCreateParams));
	break;
	case WM_APPCOMMAND: {
	auto cmd = GET_APPCOMMAND_LPARAM(lParam);
	switch (cmd) {
	case APPCOMMAND_BROWSER_BACKWARD:
	thisWindow->browserWindow()->navigateForwardOrBackward(false);
	result = 1;
	break;
	case APPCOMMAND_BROWSER_FORWARD:
	thisWindow->browserWindow()->navigateForwardOrBackward(true);
	result = 1;
	break;
	case APPCOMMAND_BROWSER_HOME:
	thisWindow->goHome();
	break;
	case APPCOMMAND_BROWSER_REFRESH:
	thisWindow->browserWindow()->reload();
	result = 1;
	break;
	case APPCOMMAND_BROWSER_STOP:
	break;
	}
	break;
	}
	case WM_COMMAND: {
	int wmId = LOWORD(wParam);
	int wmEvent = HIWORD(wParam);
	switch (wmEvent) {
	case 0: // Menu or BN_CLICKED
	case 1: // Accelerator
	break;
	default:
	return DefWindowProc(hWnd, message, wParam, lParam);
	}
	if (wmId >= IDM_HISTORY_LINK0 && wmId <= IDM_HISTORY_LINK9) {
	thisWindow->browserWindow()->navigateToHistory(wmId);
	break;
	}
	// Parse the menu selections:
	switch (wmId) {
	case IDC_URL_BAR:
	thisWindow->onURLBarEnter();
	break;
	#if ENABLE(WEBKIT)
	case IDM_NEW_WEBKIT_WINDOW: {
	auto& newWindow = MainWindow::create().leakRef();
	newWindow.init(WebKitBrowserWindow::create, hInst);
	ShowWindow(newWindow.hwnd(), SW_SHOW);
	break;
	}
	#endif
	#if ENABLE(WEBKIT_LEGACY)
	case IDM_NEW_WEBKITLEGACY_WINDOW: {
	auto& newWindow = MainWindow::create().leakRef();
	newWindow.init(WebKitLegacyBrowserWindow::create, hInst);
	ShowWindow(newWindow.hwnd(), SW_SHOW);
	break;
	}
	#endif
	case IDM_CLOSE_WINDOW:
	PostMessage(hWnd, WM_CLOSE, 0, 0);
	break;
	case IDM_ABOUT:
	DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);
	break;
	case IDM_GO_HOME:
	thisWindow->goHome();
	break;
	case IDM_EXIT:
	DestroyWindow(hWnd);
	break;
	case IDM_PRINT:
	thisWindow->browserWindow()->print();
	break;
	case IDM_WEB_INSPECTOR:
	thisWindow->browserWindow()->launchInspector();
	break;
	case IDM_PROXY_SETTINGS:
	thisWindow->browserWindow()->openProxySettings();
	break;
	case IDM_SET_DEFAULT_URL:
	thisWindow->setDefaultURLToCurrentURL();
	break;
	case IDM_CACHES:
	if (!::IsWindow(thisWindow->m_hCacheWnd)) {
	thisWindow->m_hCacheWnd = CreateDialogParam(hInst, MAKEINTRESOURCE(IDD_CACHES), hWnd, cachesDialogProc, reinterpret_cast<LPARAM>(thisWindow.get()));
	::ShowWindow(thisWindow->m_hCacheWnd, SW_SHOW);
	}
	break;
	case IDM_HISTORY_BACKWARD:
	case IDM_HISTORY_FORWARD:
	thisWindow->browserWindow()->navigateForwardOrBackward(wmId == IDM_HISTORY_FORWARD);
	break;
	case IDM_UA_OTHER:
	DialogBoxParam(hInst, MAKEINTRESOURCE(IDD_USER_AGENT), hWnd, customUserAgentDialogProc, reinterpret_cast<LPARAM>(thisWindow.get()));
	break;
	case IDM_ACTUAL_SIZE:
	thisWindow->browserWindow()->resetZoom();
	break;
	case IDM_RELOAD:
	thisWindow->browserWindow()->reload();
	break;
	case IDM_ZOOM_IN:
	thisWindow->browserWindow()->zoomIn();
	break;
	case IDM_ZOOM_OUT:
	thisWindow->browserWindow()->zoomOut();
	break;
	case IDM_SHOW_LAYER_TREE:
	thisWindow->browserWindow()->showLayerTree();
	break;
	default:
	if (!thisWindow->toggleMenuItem(wmId))
	return DefWindowProc(hWnd, message, wParam, lParam);
	}
	}
	break;
	case WM_DESTROY:
	SetWindowLongPtr(hWnd, GWLP_USERDATA, 0);
	thisWindow->deref();
	if (s_numInstances > 1)
	return 0;
	#if USE(CF)
	CFRunLoopStop(CFRunLoopGetMain());
	#endif
	PostQuitMessage(0);
	break;
	case WM_SIZE:
	thisWindow->resizeSubViews();
	break;
	case WM_DPICHANGED: {
	thisWindow->updateDeviceScaleFactor();
	auto& rect = reinterpret_cast<RECT>(lParam);
	SetWindowPos(hWnd, nullptr, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, SWP_NOZORDER \| SWP_NOACTIVATE);
	break;
	}
	default:
	return DefWindowProc(hWnd, message, wParam, lParam);
	}

	return result;
	}

	static bool menuItemIsChecked(const MENUITEMINFO& info)
	{
	return info.fState & MFS_CHECKED;
	}

	static void turnOffOtherUserAgents(HMENU menu)
	{
	MENUITEMINFO info;
	::memset(&info, 0x00, sizeof(info));
	info.cbSize = sizeof(info);
	info.fMask = MIIM_STATE;

	// Must unset the other menu items:
	for (UINT menuToClear = IDM_UA_DEFAULT; menuToClear <= IDM_UA_OTHER; ++menuToClear) {
	if (!::GetMenuItemInfo(menu, menuToClear, FALSE, &info))
	continue;
	if (!menuItemIsChecked(info))
	continue;

	info.fState = MFS_UNCHECKED;
	::SetMenuItemInfo(menu, menuToClear, FALSE, &info);
	}
	}

	void MainWindow::setDefaultURLToCurrentURL()
	{
	wchar_t url[INTERNET_MAX_URL_LENGTH];
	GetWindowText(m_hURLBarWnd, url, INTERNET_MAX_URL_LENGTH);
	auto length = wcslen(url);
	if (!length)
	return;
	RegSetKeyValue(HKEY_CURRENT_USER, kMiniBrowserRegistryKey, L"DefaultURL", REG_SZ, url, (length + 1) * sizeof(wchar_t));
	}

	bool MainWindow::toggleMenuItem(UINT menuID)
	{
	HMENU menu = ::GetMenu(hwnd());

	switch (menuID) {
	case IDM_UA_DEFAULT:
	case IDM_UA_SAFARI:
	case IDM_UA_SAFARI_IOS_IPHONE:
	case IDM_UA_SAFARI_IOS_IPAD:
	case IDM_UA_EDGE:
	case IDM_UA_IE_11:
	case IDM_UA_CHROME_MAC:
	case IDM_UA_CHROME_WIN:
	case IDM_UA_FIREFOX_MAC:
	case IDM_UA_FIREFOX_WIN:
	m_browserWindow->setUserAgent(menuID);
	turnOffOtherUserAgents(menu);
	break;
	case IDM_UA_OTHER:
	// The actual user agent string will be set by the custom user agent dialog
	turnOffOtherUserAgents(menu);
	break;
	}

	MENUITEMINFO info = { };
	info.cbSize = sizeof(info);
	info.fMask = MIIM_STATE;

	if (!::GetMenuItemInfo(menu, menuID, FALSE, &info))
	return false;

	BOOL newState = !menuItemIsChecked(info);
	info.fState = (newState) ? MFS_CHECKED : MFS_UNCHECKED;
	::SetMenuItemInfo(menu, menuID, FALSE, &info);

	m_browserWindow->setPreference(menuID, newState);

	return true;
	}

	LRESULT CALLBACK EditProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
	{
	switch (message) {
	case WM_SETFOCUS:
	PostMessage(hWnd, EM_SETSEL, 0, -1);
	break;
	case WM_CHAR:
	if (wParam == 13) {
	// Enter Key
	::PostMessage(GetParent(hWnd), static_cast<UINT>(WM_COMMAND), MAKELPARAM(IDC_URL_BAR, 0), 0);
	return 0;
	}
	break;
	}
	return CallWindowProc(DefEditProc, hWnd, message, wParam, lParam);
	}

	// Message handler for about box.
	INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
	{
	UNREFERENCED_PARAMETER(lParam);
	switch (message) {
	case WM_INITDIALOG:
	return (INT_PTR)TRUE;

	case WM_COMMAND:
	if (LOWORD(wParam) == IDOK \|\| LOWORD(wParam) == IDCANCEL) {
	EndDialog(hDlg, LOWORD(wParam));
	return (INT_PTR)TRUE;
	}
	break;
	}
	return (INT_PTR)FALSE;
	}

	INT_PTR CALLBACK MainWindow::cachesDialogProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
	{
	MainWindow& thisWindow = reinterpret_cast<MainWindow>(GetWindowLongPtr(hDlg, DWLP_USER));
	switch (message) {
	case WM_INITDIALOG:
	SetWindowLongPtr(hDlg, DWLP_USER, lParam);
	::SetTimer(hDlg, IDT_UPDATE_STATS, 1000, nullptr);
	return (INT_PTR)TRUE;

	case WM_COMMAND:
	if (LOWORD(wParam) == IDOK \|\| LOWORD(wParam) == IDCANCEL) {
	::KillTimer(hDlg, IDT_UPDATE_STATS);
	::DestroyWindow(hDlg);
	thisWindow.m_hCacheWnd = 0;
	return (INT_PTR)TRUE;
	}
	break;

	case IDT_UPDATE_STATS:
	::InvalidateRect(hDlg, nullptr, FALSE);
	return (INT_PTR)TRUE;

	case WM_PAINT:
	thisWindow.browserWindow()->updateStatistics(hDlg);
	break;
	}

	return (INT_PTR)FALSE;
	}

	INT_PTR CALLBACK MainWindow::customUserAgentDialogProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
	{
	MainWindow& thisWindow = reinterpret_cast<MainWindow>(GetWindowLongPtr(hDlg, DWLP_USER));
	switch (message) {
	case WM_INITDIALOG: {
	MainWindow& thisWindow = reinterpret_cast<MainWindow>(lParam);
	SetWindowLongPtr(hDlg, DWLP_USER, lParam);
	HWND edit = ::GetDlgItem(hDlg, IDC_USER_AGENT_INPUT);
	_bstr_t userAgent;
	userAgent = thisWindow.browserWindow()->userAgent();

	::SetWindowText(edit, static_cast<LPCTSTR>(userAgent));
	return (INT_PTR)TRUE;
	}

	case WM_COMMAND:
	if (LOWORD(wParam) == IDOK) {
	HWND edit = ::GetDlgItem(hDlg, IDC_USER_AGENT_INPUT);

	TCHAR buffer[1024];
	int strLen = ::GetWindowText(edit, buffer, 1024);
	buffer[strLen] = 0;

	_bstr_t bstr(buffer);
	if (bstr.length()) {
	thisWindow.browserWindow()->setUserAgent(bstr);
	thisWindow.toggleMenuItem(IDM_UA_OTHER);
	}
	}

	if (LOWORD(wParam) == IDOK \|\| LOWORD(wParam) == IDCANCEL) {
	::EndDialog(hDlg, LOWORD(wParam));
	return (INT_PTR)TRUE;
	}
	break;
	}
	return (INT_PTR)FALSE;
	}

	void MainWindow::loadURL(std::wstring url)
	{
	if (::PathFileExists(url.c_str()) \|\| ::PathIsUNC(url.c_str())) {
	wchar_t fileURL[INTERNET_MAX_URL_LENGTH];
	DWORD fileURLLength = _countof(fileURL);

	if (SUCCEEDED(::UrlCreateFromPath(url.c_str(), fileURL, &fileURLLength, 0)))
	url = fileURL;
	}
	if (url.find(L"://") == url.npos)
	url = L"http://" + url;

	if (FAILED(m_browserWindow->loadURL(_bstr_t(url.c_str()))))
	return;

	SetFocus(m_browserWindow->hwnd());
	}

	void MainWindow::goHome()
	{
	std::wstring defaultURL = L"https://www.webkit.org/";
	wchar_t url[INTERNET_MAX_URL_LENGTH];
	DWORD urlLength = sizeof(url);
	if (!RegGetValue(HKEY_CURRENT_USER, kMiniBrowserRegistryKey, L"DefaultURL", RRF_RT_REG_SZ, nullptr, &url, &urlLength))
	defaultURL = url;
	loadURL(defaultURL);
	}

	void MainWindow::onURLBarEnter()
	{
	wchar_t url[INTERNET_MAX_URL_LENGTH];
	GetWindowText(m_hURLBarWnd, url, INTERNET_MAX_URL_LENGTH);
	loadURL(url);
	}

	void MainWindow::updateDeviceScaleFactor()
	{
	if (m_hURLBarFont)
	::DeleteObject(m_hURLBarFont);

	rescaleToolbar();

	RECT rect;
	GetClientRect(m_hToolbarWnd, &rect);
	int fontHeight = rect.bottom * 3. / 4;

	m_hURLBarFont = ::CreateFont(fontHeight, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, DEFAULT_CHARSET,
	OUT_TT_ONLY_PRECIS, CLIP_DEFAULT_PRECIS, CLEARTYPE_QUALITY, FF_DONTCARE, L"Tahoma");
	::SendMessage(m_hURLBarWnd, static_cast<UINT>(WM_SETFONT), reinterpret_cast<WPARAM>(m_hURLBarFont), TRUE);
	}

	void MainWindow::progressChanged(double progress)
	{
	std::wostringstream text;
	text << static_cast<int>(progress * 100) << L'%';
	SetWindowText(m_hProgressIndicator, text.str().c_str());
	}

	void MainWindow::progressFinished()
	{
	SetWindowText(m_hProgressIndicator, L"");
	}

	void MainWindow::activeURLChanged(std::wstring url)
	{
	SetWindowText(m_hURLBarWnd, url.c_str());
	}