cef/tests/cefclient/browser/root_window_win.cc

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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.
#include "tests/cefclient/browser/root_window_win.h"
#include <shellscalingapi.h>
#include "include/base/cef_build.h"
#include "include/base/cef_callback.h"
#include "include/cef_app.h"
#include "tests/cefclient/browser/browser_window_osr_win.h"
#include "tests/cefclient/browser/browser_window_std_win.h"
#include "tests/cefclient/browser/main_context.h"
#include "tests/cefclient/browser/resource.h"
#include "tests/cefclient/browser/temp_window.h"
#include "tests/cefclient/browser/window_test_runner_win.h"
#include "tests/shared/browser/geometry_util.h"
#include "tests/shared/browser/main_message_loop.h"
#include "tests/shared/browser/util_win.h"
#include "tests/shared/common/client_switches.h"
#define MAX_URL_LENGTH 255
#define BUTTON_WIDTH 72
#define URLBAR_HEIGHT 24
namespace client {
namespace {
// Message handler for the About box.
INT_PTR CALLBACK AboutWndProc(HWND hDlg,
UINT message,
WPARAM wParam,
LPARAM lParam) {
UNREFERENCED_PARAMETER(lParam);
switch (message) {
case WM_INITDIALOG:
return TRUE;
case WM_COMMAND:
if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL) {
EndDialog(hDlg, LOWORD(wParam));
return TRUE;
}
break;
}
return FALSE;
}
// Returns true if the process is per monitor DPI aware.
bool IsProcessPerMonitorDpiAware() {
enum class PerMonitorDpiAware {
UNKNOWN = 0,
PER_MONITOR_DPI_UNAWARE,
PER_MONITOR_DPI_AWARE,
};
static PerMonitorDpiAware per_monitor_dpi_aware = PerMonitorDpiAware::UNKNOWN;
if (per_monitor_dpi_aware == PerMonitorDpiAware::UNKNOWN) {
per_monitor_dpi_aware = PerMonitorDpiAware::PER_MONITOR_DPI_UNAWARE;
HMODULE shcore_dll = ::LoadLibrary(L"shcore.dll");
if (shcore_dll) {
typedef HRESULT(WINAPI * GetProcessDpiAwarenessPtr)(
HANDLE, PROCESS_DPI_AWARENESS*);
GetProcessDpiAwarenessPtr func_ptr =
reinterpret_cast<GetProcessDpiAwarenessPtr>(
::GetProcAddress(shcore_dll, "GetProcessDpiAwareness"));
if (func_ptr) {
PROCESS_DPI_AWARENESS awareness;
if (SUCCEEDED(func_ptr(nullptr, &awareness)) &&
awareness == PROCESS_PER_MONITOR_DPI_AWARE)
per_monitor_dpi_aware = PerMonitorDpiAware::PER_MONITOR_DPI_AWARE;
}
}
}
return per_monitor_dpi_aware == PerMonitorDpiAware::PER_MONITOR_DPI_AWARE;
}
// DPI value for 1x scale factor.
#define DPI_1X 96.0f
float GetWindowScaleFactor(HWND hwnd) {
if (hwnd && IsProcessPerMonitorDpiAware()) {
typedef UINT(WINAPI * GetDpiForWindowPtr)(HWND);
static GetDpiForWindowPtr func_ptr = reinterpret_cast<GetDpiForWindowPtr>(
GetProcAddress(GetModuleHandle(L"user32.dll"), "GetDpiForWindow"));
if (func_ptr)
return static_cast<float>(func_ptr(hwnd)) / DPI_1X;
}
return client::GetDeviceScaleFactor();
}
int GetButtonWidth(HWND hwnd) {
return LogicalToDevice(BUTTON_WIDTH, GetWindowScaleFactor(hwnd));
}
int GetURLBarHeight(HWND hwnd) {
return LogicalToDevice(URLBAR_HEIGHT, GetWindowScaleFactor(hwnd));
}
} // namespace
RootWindowWin::RootWindowWin()
: with_controls_(false),
always_on_top_(false),
with_osr_(false),
with_extension_(false),
is_popup_(false),
start_rect_(),
initialized_(false),
hwnd_(nullptr),
draggable_region_(nullptr),
font_(nullptr),
font_height_(0),
back_hwnd_(nullptr),
forward_hwnd_(nullptr),
reload_hwnd_(nullptr),
stop_hwnd_(nullptr),
edit_hwnd_(nullptr),
edit_wndproc_old_(nullptr),
find_hwnd_(nullptr),
find_message_id_(0),
find_wndproc_old_(nullptr),
find_state_(),
find_next_(false),
find_match_case_last_(false),
window_destroyed_(false),
browser_destroyed_(false),
called_enable_non_client_dpi_scaling_(false) {
find_buff_[0] = 0;
// Create a HRGN representing the draggable window area.
draggable_region_ = ::CreateRectRgn(0, 0, 0, 0);
}
RootWindowWin::~RootWindowWin() {
REQUIRE_MAIN_THREAD();
::DeleteObject(draggable_region_);
::DeleteObject(font_);
// The window and browser should already have been destroyed.
DCHECK(window_destroyed_);
DCHECK(browser_destroyed_);
}
void RootWindowWin::Init(RootWindow::Delegate* delegate,
std::unique_ptr<RootWindowConfig> config,
const CefBrowserSettings& settings) {
DCHECK(delegate);
DCHECK(!initialized_);
delegate_ = delegate;
with_controls_ = config->with_controls;
always_on_top_ = config->always_on_top;
with_osr_ = config->with_osr;
with_extension_ = config->with_extension;
start_rect_.left = config->bounds.x;
start_rect_.top = config->bounds.y;
start_rect_.right = config->bounds.x + config->bounds.width;
start_rect_.bottom = config->bounds.y + config->bounds.height;
CreateBrowserWindow(config->url);
initialized_ = true;
// Create the native root window on the main thread.
if (CURRENTLY_ON_MAIN_THREAD()) {
CreateRootWindow(settings, config->initially_hidden);
} else {
MAIN_POST_CLOSURE(base::BindOnce(&RootWindowWin::CreateRootWindow, this,
settings, config->initially_hidden));
}
}
void RootWindowWin::InitAsPopup(RootWindow::Delegate* delegate,
bool with_controls,
bool with_osr,
const CefPopupFeatures& popupFeatures,
CefWindowInfo& windowInfo,
CefRefPtr<CefClient>& client,
CefBrowserSettings& settings) {
CEF_REQUIRE_UI_THREAD();
DCHECK(delegate);
DCHECK(!initialized_);
delegate_ = delegate;
with_controls_ = with_controls;
with_osr_ = with_osr;
is_popup_ = true;
if (popupFeatures.xSet)
start_rect_.left = popupFeatures.x;
if (popupFeatures.ySet)
start_rect_.top = popupFeatures.y;
if (popupFeatures.widthSet)
start_rect_.right = start_rect_.left + popupFeatures.width;
if (popupFeatures.heightSet)
start_rect_.bottom = start_rect_.top + popupFeatures.height;
CreateBrowserWindow(std::string());
initialized_ = true;
// The new popup is initially parented to a temporary window. The native root
// window will be created after the browser is created and the popup window
// will be re-parented to it at that time.
browser_window_->GetPopupConfig(TempWindow::GetWindowHandle(), windowInfo,
client, settings);
}
void RootWindowWin::Show(ShowMode mode) {
REQUIRE_MAIN_THREAD();
if (!hwnd_)
return;
int nCmdShow = SW_SHOWNORMAL;
switch (mode) {
case ShowMinimized:
nCmdShow = SW_SHOWMINIMIZED;
break;
case ShowMaximized:
nCmdShow = SW_SHOWMAXIMIZED;
break;
case ShowNoActivate:
nCmdShow = SW_SHOWNOACTIVATE;
break;
default:
break;
}
ShowWindow(hwnd_, nCmdShow);
UpdateWindow(hwnd_);
}
void RootWindowWin::Hide() {
REQUIRE_MAIN_THREAD();
if (hwnd_)
ShowWindow(hwnd_, SW_HIDE);
}
void RootWindowWin::SetBounds(int x, int y, size_t width, size_t height) {
REQUIRE_MAIN_THREAD();
if (hwnd_) {
SetWindowPos(hwnd_, nullptr, x, y, static_cast<int>(width),
static_cast<int>(height), SWP_NOZORDER);
}
}
void RootWindowWin::Close(bool force) {
REQUIRE_MAIN_THREAD();
if (hwnd_) {
if (force)
DestroyWindow(hwnd_);
else
PostMessage(hwnd_, WM_CLOSE, 0, 0);
}
}
void RootWindowWin::SetDeviceScaleFactor(float device_scale_factor) {
REQUIRE_MAIN_THREAD();
if (browser_window_ && with_osr_)
browser_window_->SetDeviceScaleFactor(device_scale_factor);
}
float RootWindowWin::GetDeviceScaleFactor() const {
REQUIRE_MAIN_THREAD();
if (browser_window_ && with_osr_)
return browser_window_->GetDeviceScaleFactor();
NOTREACHED();
return 0.0f;
}
CefRefPtr<CefBrowser> RootWindowWin::GetBrowser() const {
REQUIRE_MAIN_THREAD();
if (browser_window_)
return browser_window_->GetBrowser();
return nullptr;
}
ClientWindowHandle RootWindowWin::GetWindowHandle() const {
REQUIRE_MAIN_THREAD();
return hwnd_;
}
bool RootWindowWin::WithWindowlessRendering() const {
REQUIRE_MAIN_THREAD();
return with_osr_;
}
bool RootWindowWin::WithExtension() const {
REQUIRE_MAIN_THREAD();
return with_extension_;
}
void RootWindowWin::CreateBrowserWindow(const std::string& startup_url) {
if (with_osr_) {
OsrRendererSettings settings = {};
MainContext::Get()->PopulateOsrSettings(&settings);
browser_window_.reset(
new BrowserWindowOsrWin(this, with_controls_, startup_url, settings));
} else {
browser_window_.reset(
new BrowserWindowStdWin(this, with_controls_, startup_url));
}
}
void RootWindowWin::CreateRootWindow(const CefBrowserSettings& settings,
bool initially_hidden) {
REQUIRE_MAIN_THREAD();
DCHECK(!hwnd_);
HINSTANCE hInstance = GetModuleHandle(nullptr);
// Load strings from the resource file.
const std::wstring& window_title = GetResourceString(IDS_APP_TITLE);
const std::wstring& window_class = GetResourceString(IDC_CEFCLIENT);
const cef_color_t background_color = MainContext::Get()->GetBackgroundColor();
const HBRUSH background_brush = CreateSolidBrush(
RGB(CefColorGetR(background_color), CefColorGetG(background_color),
CefColorGetB(background_color)));
// Register the window class.
RegisterRootClass(hInstance, window_class, background_brush);
// Register the message used with the find dialog.
find_message_id_ = RegisterWindowMessage(FINDMSGSTRING);
CHECK(find_message_id_);
CefRefPtr<CefCommandLine> command_line =
CefCommandLine::GetGlobalCommandLine();
const bool no_activate = command_line->HasSwitch(switches::kNoActivate);
const DWORD dwStyle = WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN;
DWORD dwExStyle = always_on_top_ ? WS_EX_TOPMOST : 0;
if (no_activate) {
// Don't activate the browser window on creation.
dwExStyle |= WS_EX_NOACTIVATE;
}
int x, y, width, height;
if (::IsRectEmpty(&start_rect_)) {
// Use the default window position/size.
x = y = width = height = CW_USEDEFAULT;
} else {
// Adjust the window size to account for window frame and controls.
RECT window_rect = start_rect_;
::AdjustWindowRectEx(&window_rect, dwStyle, with_controls_, dwExStyle);
x = start_rect_.left;
y = start_rect_.top;
width = window_rect.right - window_rect.left;
height = window_rect.bottom - window_rect.top;
}
browser_settings_ = settings;
// Create the main window initially hidden.
CreateWindowEx(dwExStyle, window_class.c_str(), window_title.c_str(), dwStyle,
x, y, width, height, nullptr, nullptr, hInstance, this);
CHECK(hwnd_);
if (!called_enable_non_client_dpi_scaling_ && IsProcessPerMonitorDpiAware()) {
// This call gets Windows to scale the non-client area when WM_DPICHANGED
// is fired on Windows versions < 10.0.14393.0.
// Derived signature; not available in headers.
typedef LRESULT(WINAPI * EnableChildWindowDpiMessagePtr)(HWND, BOOL);
static EnableChildWindowDpiMessagePtr func_ptr =
reinterpret_cast<EnableChildWindowDpiMessagePtr>(GetProcAddress(
GetModuleHandle(L"user32.dll"), "EnableChildWindowDpiMessage"));
if (func_ptr)
func_ptr(hwnd_, TRUE);
}
if (!initially_hidden) {
// Show this window.
Show(no_activate ? ShowNoActivate : ShowNormal);
}
}
// static
void RootWindowWin::RegisterRootClass(HINSTANCE hInstance,
const std::wstring& window_class,
HBRUSH background_brush) {
// Only register the class one time.
static bool class_registered = false;
if (class_registered)
return;
class_registered = true;
WNDCLASSEX wcex;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_HREDRAW | CS_VREDRAW;
wcex.lpfnWndProc = RootWndProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_CEFCLIENT));
wcex.hCursor = LoadCursor(nullptr, IDC_ARROW);
wcex.hbrBackground = background_brush;
wcex.lpszMenuName = MAKEINTRESOURCE(IDC_CEFCLIENT);
wcex.lpszClassName = window_class.c_str();
wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));
RegisterClassEx(&wcex);
}
// static
LRESULT CALLBACK RootWindowWin::EditWndProc(HWND hWnd,
UINT message,
WPARAM wParam,
LPARAM lParam) {
REQUIRE_MAIN_THREAD();
RootWindowWin* self = GetUserDataPtr<RootWindowWin*>(hWnd);
DCHECK(self);
DCHECK(hWnd == self->edit_hwnd_);
switch (message) {
case WM_CHAR:
if (wParam == VK_RETURN) {
// When the user hits the enter key load the URL.
CefRefPtr<CefBrowser> browser = self->GetBrowser();
if (browser) {
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;
}
break;
case WM_NCDESTROY:
// Clear the reference to |self|.
SetUserDataPtr(hWnd, nullptr);
self->edit_hwnd_ = nullptr;
break;
}
return CallWindowProc(self->edit_wndproc_old_, hWnd, message, wParam, lParam);
}
// static
LRESULT CALLBACK RootWindowWin::FindWndProc(HWND hWnd,
UINT message,
WPARAM wParam,
LPARAM lParam) {
REQUIRE_MAIN_THREAD();
RootWindowWin* self = GetUserDataPtr<RootWindowWin*>(hWnd);
DCHECK(self);
DCHECK(hWnd == self->find_hwnd_);
switch (message) {
case WM_ACTIVATE:
// Set this dialog as current when activated.
MainMessageLoop::Get()->SetCurrentModelessDialog(wParam == 0 ? nullptr
: hWnd);
return FALSE;
case WM_NCDESTROY:
// Clear the reference to |self|.
SetUserDataPtr(hWnd, nullptr);
self->find_hwnd_ = nullptr;
break;
}
return CallWindowProc(self->find_wndproc_old_, hWnd, message, wParam, lParam);
}
// static
LRESULT CALLBACK RootWindowWin::RootWndProc(HWND hWnd,
UINT message,
WPARAM wParam,
LPARAM lParam) {
REQUIRE_MAIN_THREAD();
RootWindowWin* self = nullptr;
if (message != WM_NCCREATE) {
self = GetUserDataPtr<RootWindowWin*>(hWnd);
if (!self)
return DefWindowProc(hWnd, message, wParam, lParam);
DCHECK_EQ(hWnd, self->hwnd_);
}
if (self && message == self->find_message_id_) {
// Message targeting the find dialog.
LPFINDREPLACE lpfr = reinterpret_cast<LPFINDREPLACE>(lParam);
CHECK(lpfr == &self->find_state_);
self->OnFindEvent();
return 0;
}
// Callback for the main window
switch (message) {
case WM_COMMAND:
if (self->OnCommand(LOWORD(wParam)))
return 0;
break;
case WM_GETOBJECT: {
// Only the lower 32 bits of lParam are valid when checking the object id
// because it sometimes gets sign-extended incorrectly (but not always).
DWORD obj_id = static_cast<DWORD>(static_cast<DWORD_PTR>(lParam));
// Accessibility readers will send an OBJID_CLIENT message.
if (static_cast<DWORD>(OBJID_CLIENT) == obj_id) {
if (self->GetBrowser() && self->GetBrowser()->GetHost())
self->GetBrowser()->GetHost()->SetAccessibilityState(STATE_ENABLED);
}
} break;
case WM_PAINT:
self->OnPaint();
return 0;
case WM_ACTIVATE:
self->OnActivate(LOWORD(wParam) != WA_INACTIVE);
// Allow DefWindowProc to set keyboard focus.
break;
case WM_SETFOCUS:
self->OnFocus();
return 0;
case WM_ENABLE:
if (wParam == TRUE) {
// Give focus to the browser after EnableWindow enables this window
// (e.g. after a modal dialog is dismissed).
self->OnFocus();
return 0;
}
break;
case WM_SIZE:
self->OnSize(wParam == SIZE_MINIMIZED);
break;
case WM_MOVING:
case WM_MOVE:
self->OnMove();
return 0;
case WM_DPICHANGED:
self->OnDpiChanged(wParam, lParam);
break;
case WM_ERASEBKGND:
if (self->OnEraseBkgnd())
break;
// Don't erase the background.
return 0;
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 (self->OnClose())
return 0; // Cancel the close.
break;
case WM_NCHITTEST: {
LRESULT hit = DefWindowProc(hWnd, message, wParam, lParam);
if (hit == HTCLIENT) {
POINTS points = MAKEPOINTS(lParam);
POINT point = {points.x, points.y};
::ScreenToClient(hWnd, &point);
if (::PtInRegion(self->draggable_region_, point.x, point.y)) {
// If cursor is inside a draggable region return HTCAPTION to allow
// dragging.
return HTCAPTION;
}
}
return hit;
}
case WM_NCCREATE: {
CREATESTRUCT* cs = reinterpret_cast<CREATESTRUCT*>(lParam);
self = reinterpret_cast<RootWindowWin*>(cs->lpCreateParams);
DCHECK(self);
// Associate |self| with the main window.
SetUserDataPtr(hWnd, self);
self->hwnd_ = hWnd;
self->OnNCCreate(cs);
} break;
case WM_CREATE:
self->OnCreate(reinterpret_cast<CREATESTRUCT*>(lParam));
break;
case WM_NCDESTROY:
// Clear the reference to |self|.
SetUserDataPtr(hWnd, nullptr);
self->hwnd_ = nullptr;
self->OnDestroyed();
break;
}
return DefWindowProc(hWnd, message, wParam, lParam);
}
void RootWindowWin::OnPaint() {
PAINTSTRUCT ps;
BeginPaint(hwnd_, &ps);
EndPaint(hwnd_, &ps);
}
void RootWindowWin::OnFocus() {
// Selecting "Close window" from the task bar menu may send a focus
// notification even though the window is currently disabled (e.g. while a
// modal JS dialog is displayed).
if (browser_window_ && ::IsWindowEnabled(hwnd_))
browser_window_->SetFocus(true);
}
void RootWindowWin::OnActivate(bool active) {
if (active)
delegate_->OnRootWindowActivated(this);
}
void RootWindowWin::OnSize(bool minimized) {
if (minimized) {
// Notify the browser window that it was hidden and do nothing further.
if (browser_window_)
browser_window_->Hide();
return;
}
if (browser_window_)
browser_window_->Show();
RECT rect;
GetClientRect(hwnd_, &rect);
if (with_controls_ && edit_hwnd_) {
const int button_width = GetButtonWidth(hwnd_);
const int urlbar_height = GetURLBarHeight(hwnd_);
const int font_height = LogicalToDevice(14, GetWindowScaleFactor(hwnd_));
if (font_height != font_height_) {
font_height_ = font_height;
if (font_) {
DeleteObject(font_);
}
// Create a scaled font.
font_ =
::CreateFont(-font_height, 0, 0, 0, FW_DONTCARE, FALSE, FALSE, FALSE,
DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS,
DEFAULT_QUALITY, DEFAULT_PITCH | FF_DONTCARE, L"Arial");
SendMessage(back_hwnd_, WM_SETFONT, reinterpret_cast<WPARAM>(font_),
TRUE);
SendMessage(forward_hwnd_, WM_SETFONT, reinterpret_cast<WPARAM>(font_),
TRUE);
SendMessage(reload_hwnd_, WM_SETFONT, reinterpret_cast<WPARAM>(font_),
TRUE);
SendMessage(stop_hwnd_, WM_SETFONT, reinterpret_cast<WPARAM>(font_),
TRUE);
SendMessage(edit_hwnd_, WM_SETFONT, reinterpret_cast<WPARAM>(font_),
TRUE);
}
// Resize the window and address bar to match the new frame size.
rect.top += urlbar_height;
int x_offset = rect.left;
// |browser_hwnd| may be nullptr if the browser has not yet been created.
HWND browser_hwnd = nullptr;
if (browser_window_)
browser_hwnd = browser_window_->GetWindowHandle();
// Resize all controls.
HDWP hdwp = BeginDeferWindowPos(browser_hwnd ? 6 : 5);
hdwp = DeferWindowPos(hdwp, back_hwnd_, nullptr, x_offset, 0, button_width,
urlbar_height, SWP_NOZORDER);
x_offset += button_width;
hdwp = DeferWindowPos(hdwp, forward_hwnd_, nullptr, x_offset, 0,
button_width, urlbar_height, SWP_NOZORDER);
x_offset += button_width;
hdwp = DeferWindowPos(hdwp, reload_hwnd_, nullptr, x_offset, 0,
button_width, urlbar_height, SWP_NOZORDER);
x_offset += button_width;
hdwp = DeferWindowPos(hdwp, stop_hwnd_, nullptr, x_offset, 0, button_width,
urlbar_height, SWP_NOZORDER);
x_offset += button_width;
hdwp = DeferWindowPos(hdwp, edit_hwnd_, nullptr, x_offset, 0,
rect.right - x_offset, urlbar_height, SWP_NOZORDER);
if (browser_hwnd) {
hdwp = DeferWindowPos(hdwp, browser_hwnd, nullptr, rect.left, rect.top,
rect.right - rect.left, rect.bottom - rect.top,
SWP_NOZORDER);
}
[[maybe_unused]] BOOL result = EndDeferWindowPos(hdwp);
DCHECK(result);
} else if (browser_window_) {
// Size the browser window to the whole client area.
browser_window_->SetBounds(0, 0, rect.right, rect.bottom);
}
}
void RootWindowWin::OnMove() {
// Notify the browser of move events so that popup windows are displayed
// in the correct location and dismissed when the window moves.
CefRefPtr<CefBrowser> browser = GetBrowser();
if (browser)
browser->GetHost()->NotifyMoveOrResizeStarted();
}
void RootWindowWin::OnDpiChanged(WPARAM wParam, LPARAM lParam) {
if (LOWORD(wParam) != HIWORD(wParam)) {
NOTIMPLEMENTED() << "Received non-square scaling factors";
return;
}
if (browser_window_ && with_osr_) {
// Scale factor for the new display.
const float display_scale_factor =
static_cast<float>(LOWORD(wParam)) / DPI_1X;
browser_window_->SetDeviceScaleFactor(display_scale_factor);
}
// Suggested size and position of the current window scaled for the new DPI.
const RECT* rect = reinterpret_cast<RECT*>(lParam);
SetBounds(rect->left, rect->top, rect->right - rect->left,
rect->bottom - rect->top);
}
bool RootWindowWin::OnEraseBkgnd() {
// Erase the background when the browser does not exist.
return (GetBrowser() == nullptr);
}
bool RootWindowWin::OnCommand(UINT id) {
if (id >= ID_TESTS_FIRST && id <= ID_TESTS_LAST) {
delegate_->OnTest(this, id);
return true;
}
switch (id) {
case IDM_ABOUT:
OnAbout();
return true;
case IDM_EXIT:
delegate_->OnExit(this);
return true;
case ID_FIND:
OnFind();
return true;
case IDC_NAV_BACK: // Back button
if (CefRefPtr<CefBrowser> browser = GetBrowser())
browser->GoBack();
return true;
case IDC_NAV_FORWARD: // Forward button
if (CefRefPtr<CefBrowser> browser = GetBrowser())
browser->GoForward();
return true;
case IDC_NAV_RELOAD: // Reload button
if (CefRefPtr<CefBrowser> browser = GetBrowser())
browser->Reload();
return true;
case IDC_NAV_STOP: // Stop button
if (CefRefPtr<CefBrowser> browser = GetBrowser())
browser->StopLoad();
return true;
}
return false;
}
void RootWindowWin::OnFind() {
if (find_hwnd_) {
// Give focus to the existing find dialog.
::SetFocus(find_hwnd_);
return;
}
// Configure dialog state.
ZeroMemory(&find_state_, sizeof(find_state_));
find_state_.lStructSize = sizeof(find_state_);
find_state_.hwndOwner = hwnd_;
find_state_.lpstrFindWhat = find_buff_;
find_state_.wFindWhatLen = sizeof(find_buff_);
find_state_.Flags = FR_HIDEWHOLEWORD | FR_DOWN;
// Create the dialog.
find_hwnd_ = FindText(&find_state_);
// Override the dialog's window procedure.
find_wndproc_old_ = SetWndProcPtr(find_hwnd_, FindWndProc);
// Associate |self| with the dialog.
SetUserDataPtr(find_hwnd_, this);
}
void RootWindowWin::OnFindEvent() {
CefRefPtr<CefBrowser> browser = GetBrowser();
if (find_state_.Flags & FR_DIALOGTERM) {
// The find dialog box has been dismissed so invalidate the handle and
// reset the search results.
if (browser) {
browser->GetHost()->StopFinding(true);
find_what_last_.clear();
find_next_ = false;
}
} else if ((find_state_.Flags & FR_FINDNEXT) && browser) {
// Search for the requested string.
bool match_case = ((find_state_.Flags & FR_MATCHCASE) ? true : false);
const std::wstring& find_what = find_buff_;
if (match_case != find_match_case_last_ || find_what != find_what_last_) {
// The search string has changed, so reset the search results.
if (!find_what.empty()) {
browser->GetHost()->StopFinding(true);
find_next_ = false;
}
find_match_case_last_ = match_case;
find_what_last_ = find_buff_;
}
browser->GetHost()->Find(find_what,
(find_state_.Flags & FR_DOWN) ? true : false,
match_case, find_next_);
if (!find_next_)
find_next_ = true;
}
}
void RootWindowWin::OnAbout() {
// Show the about box.
DialogBox(GetModuleHandle(nullptr), MAKEINTRESOURCE(IDD_ABOUTBOX), hwnd_,
AboutWndProc);
}
void RootWindowWin::OnNCCreate(LPCREATESTRUCT lpCreateStruct) {
if (IsProcessPerMonitorDpiAware()) {
// This call gets Windows to scale the non-client area when WM_DPICHANGED
// is fired on Windows versions >= 10.0.14393.0.
typedef BOOL(WINAPI * EnableNonClientDpiScalingPtr)(HWND);
static EnableNonClientDpiScalingPtr func_ptr =
reinterpret_cast<EnableNonClientDpiScalingPtr>(GetProcAddress(
GetModuleHandle(L"user32.dll"), "EnableNonClientDpiScaling"));
called_enable_non_client_dpi_scaling_ = !!(func_ptr && func_ptr(hwnd_));
}
}
void RootWindowWin::OnCreate(LPCREATESTRUCT lpCreateStruct) {
const HINSTANCE hInstance = lpCreateStruct->hInstance;
RECT rect;
GetClientRect(hwnd_, &rect);
if (with_controls_) {
// Create the child controls.
int x_offset = 0;
const int button_width = GetButtonWidth(hwnd_);
const int urlbar_height = GetURLBarHeight(hwnd_);
back_hwnd_ = CreateWindow(
L"BUTTON", L"Back", WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON | WS_DISABLED,
x_offset, 0, button_width, urlbar_height, hwnd_,
reinterpret_cast<HMENU>(IDC_NAV_BACK), hInstance, 0);
CHECK(back_hwnd_);
x_offset += button_width;
forward_hwnd_ =
CreateWindow(L"BUTTON", L"Forward",
WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON | WS_DISABLED,
x_offset, 0, button_width, urlbar_height, hwnd_,
reinterpret_cast<HMENU>(IDC_NAV_FORWARD), hInstance, 0);
CHECK(forward_hwnd_);
x_offset += button_width;
reload_hwnd_ =
CreateWindow(L"BUTTON", L"Reload",
WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON | WS_DISABLED,
x_offset, 0, button_width, urlbar_height, hwnd_,
reinterpret_cast<HMENU>(IDC_NAV_RELOAD), hInstance, 0);
CHECK(reload_hwnd_);
x_offset += button_width;
stop_hwnd_ = CreateWindow(
L"BUTTON", L"Stop", WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON | WS_DISABLED,
x_offset, 0, button_width, urlbar_height, hwnd_,
reinterpret_cast<HMENU>(IDC_NAV_STOP), hInstance, 0);
CHECK(stop_hwnd_);
x_offset += button_width;
edit_hwnd_ = CreateWindow(L"EDIT", 0,
WS_CHILD | WS_VISIBLE | WS_BORDER | ES_LEFT |
ES_AUTOVSCROLL | ES_AUTOHSCROLL | WS_DISABLED,
x_offset, 0, rect.right - button_width * 4,
urlbar_height, hwnd_, 0, hInstance, 0);
CHECK(edit_hwnd_);
// Override the edit control's window procedure.
edit_wndproc_old_ = SetWndProcPtr(edit_hwnd_, EditWndProc);
// Associate |this| with the edit window.
SetUserDataPtr(edit_hwnd_, this);
rect.top += urlbar_height;
if (!with_osr_) {
// Remove the menu items that are only used with OSR.
HMENU hMenu = ::GetMenu(hwnd_);
if (hMenu) {
HMENU hTestMenu = ::GetSubMenu(hMenu, 2);
if (hTestMenu) {
::RemoveMenu(hTestMenu, ID_TESTS_OSR_FPS, MF_BYCOMMAND);
::RemoveMenu(hTestMenu, ID_TESTS_OSR_DSF, MF_BYCOMMAND);
}
}
}
} else {
// No controls so also remove the default menu.
::SetMenu(hwnd_, nullptr);
}
const float device_scale_factor = GetWindowScaleFactor(hwnd_);
if (with_osr_) {
browser_window_->SetDeviceScaleFactor(device_scale_factor);
}
if (!is_popup_) {
// Create the browser window.
CefRect cef_rect(rect.left, rect.top, rect.right - rect.left,
rect.bottom - rect.top);
browser_window_->CreateBrowser(hwnd_, cef_rect, browser_settings_, nullptr,
delegate_->GetRequestContext(this));
} else {
// With popups we already have a browser window. Parent the browser window
// to the root window and show it in the correct location.
browser_window_->ShowPopup(hwnd_, rect.left, rect.top,
rect.right - rect.left, rect.bottom - rect.top);
}
}
bool RootWindowWin::OnClose() {
if (browser_window_ && !browser_window_->IsClosing()) {
CefRefPtr<CefBrowser> browser = GetBrowser();
if (browser) {
// 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 true;
}
}
// Allow the close.
return false;
}
void RootWindowWin::OnDestroyed() {
window_destroyed_ = true;
NotifyDestroyedIfDone();
}
void RootWindowWin::OnBrowserCreated(CefRefPtr<CefBrowser> browser) {
REQUIRE_MAIN_THREAD();
if (is_popup_) {
// For popup browsers create the root window once the browser has been
// created.
CreateRootWindow(CefBrowserSettings(), false);
} else {
// Make sure the browser is sized correctly.
OnSize(false);
}
delegate_->OnBrowserCreated(this, browser);
}
void RootWindowWin::OnBrowserWindowDestroyed() {
REQUIRE_MAIN_THREAD();
browser_window_.reset();
if (!window_destroyed_) {
// The browser was destroyed first. This could be due to the use of
// off-screen rendering or execution of JavaScript window.close().
// Close the RootWindow.
Close(true);
}
browser_destroyed_ = true;
NotifyDestroyedIfDone();
}
void RootWindowWin::OnSetAddress(const std::string& url) {
REQUIRE_MAIN_THREAD();
if (edit_hwnd_)
SetWindowText(edit_hwnd_, CefString(url).ToWString().c_str());
}
void RootWindowWin::OnSetTitle(const std::string& title) {
REQUIRE_MAIN_THREAD();
if (hwnd_)
SetWindowText(hwnd_, CefString(title).ToWString().c_str());
}
void RootWindowWin::OnSetFullscreen(bool fullscreen) {
REQUIRE_MAIN_THREAD();
CefRefPtr<CefBrowser> browser = GetBrowser();
if (browser) {
std::unique_ptr<window_test::WindowTestRunnerWin> test_runner(
Implement Views framework on Windows and Linux (issue #1749). - Add Views header files in a new include/views directory. - Add initial top-level window (CefWindow), control (CefBrowserView, CefLabelButton, CefMenuButton, CefPanel, CefScrollView, CefTextfield) and layout (CefBoxLayout, CefFlowLayout) support. See libcef/browser/views/view_impl.h comments for implementation details. - Add Views example usage in cefclient and cefsimple and Views unit tests in cef_unittests. Pass the `--use-views` command-line flag to cefclient, cefsimple and cef_unittests to run using the Views framework instead of platform APIs. For cefclient and cefsimple this will create the browser window and all related functionality using the Views framework. For cef_unittests this will run all tests (except OSR tests) in a Views-based browser window. Views- specific unit tests (`--gtest_filter=Views*`) will be run even if the the `--use-views` flag is not specified. - Pass the `--hide-frame` command-line flag to cefclient to demo a frameless Views-based browser window. - Pass the `--hide-controls` command-line flag to cefclient to demo a browser window without top controls. This also works in non-Views mode. - Pass the `--enable-high-dpi-support` command-line flag to cef_unittests on Windows to test high-DPI support on a display that supports it. - Add CefImage for reading/writing image file formats. - Add CefBrowser::DownloadImage() for downloading image URLs as a CefImage representation. This is primarily for loading favicons. - Add CefMenuModel::CreateMenuModel() and CefMenuModelDelegate for creating custom menus. This is primarily for use with CefMenuButton. - Add CefBrowser::TryCloseBrowser() helper for closing a browser. Also improve related documentation in cef_life_span_handler.h. - Rename cef_page_range_t to cef_range_t. It is now also used by CefTextfield. - Remove CefLifeSpanHandler::RunModal() which is never called. - Add draggable regions example to cefclient.
2016-01-19 21:09:01 +01:00
new window_test::WindowTestRunnerWin());
if (fullscreen)
Implement Views framework on Windows and Linux (issue #1749). - Add Views header files in a new include/views directory. - Add initial top-level window (CefWindow), control (CefBrowserView, CefLabelButton, CefMenuButton, CefPanel, CefScrollView, CefTextfield) and layout (CefBoxLayout, CefFlowLayout) support. See libcef/browser/views/view_impl.h comments for implementation details. - Add Views example usage in cefclient and cefsimple and Views unit tests in cef_unittests. Pass the `--use-views` command-line flag to cefclient, cefsimple and cef_unittests to run using the Views framework instead of platform APIs. For cefclient and cefsimple this will create the browser window and all related functionality using the Views framework. For cef_unittests this will run all tests (except OSR tests) in a Views-based browser window. Views- specific unit tests (`--gtest_filter=Views*`) will be run even if the the `--use-views` flag is not specified. - Pass the `--hide-frame` command-line flag to cefclient to demo a frameless Views-based browser window. - Pass the `--hide-controls` command-line flag to cefclient to demo a browser window without top controls. This also works in non-Views mode. - Pass the `--enable-high-dpi-support` command-line flag to cef_unittests on Windows to test high-DPI support on a display that supports it. - Add CefImage for reading/writing image file formats. - Add CefBrowser::DownloadImage() for downloading image URLs as a CefImage representation. This is primarily for loading favicons. - Add CefMenuModel::CreateMenuModel() and CefMenuModelDelegate for creating custom menus. This is primarily for use with CefMenuButton. - Add CefBrowser::TryCloseBrowser() helper for closing a browser. Also improve related documentation in cef_life_span_handler.h. - Rename cef_page_range_t to cef_range_t. It is now also used by CefTextfield. - Remove CefLifeSpanHandler::RunModal() which is never called. - Add draggable regions example to cefclient.
2016-01-19 21:09:01 +01:00
test_runner->Maximize(browser);
else
Implement Views framework on Windows and Linux (issue #1749). - Add Views header files in a new include/views directory. - Add initial top-level window (CefWindow), control (CefBrowserView, CefLabelButton, CefMenuButton, CefPanel, CefScrollView, CefTextfield) and layout (CefBoxLayout, CefFlowLayout) support. See libcef/browser/views/view_impl.h comments for implementation details. - Add Views example usage in cefclient and cefsimple and Views unit tests in cef_unittests. Pass the `--use-views` command-line flag to cefclient, cefsimple and cef_unittests to run using the Views framework instead of platform APIs. For cefclient and cefsimple this will create the browser window and all related functionality using the Views framework. For cef_unittests this will run all tests (except OSR tests) in a Views-based browser window. Views- specific unit tests (`--gtest_filter=Views*`) will be run even if the the `--use-views` flag is not specified. - Pass the `--hide-frame` command-line flag to cefclient to demo a frameless Views-based browser window. - Pass the `--hide-controls` command-line flag to cefclient to demo a browser window without top controls. This also works in non-Views mode. - Pass the `--enable-high-dpi-support` command-line flag to cef_unittests on Windows to test high-DPI support on a display that supports it. - Add CefImage for reading/writing image file formats. - Add CefBrowser::DownloadImage() for downloading image URLs as a CefImage representation. This is primarily for loading favicons. - Add CefMenuModel::CreateMenuModel() and CefMenuModelDelegate for creating custom menus. This is primarily for use with CefMenuButton. - Add CefBrowser::TryCloseBrowser() helper for closing a browser. Also improve related documentation in cef_life_span_handler.h. - Rename cef_page_range_t to cef_range_t. It is now also used by CefTextfield. - Remove CefLifeSpanHandler::RunModal() which is never called. - Add draggable regions example to cefclient.
2016-01-19 21:09:01 +01:00
test_runner->Restore(browser);
}
}
void RootWindowWin::OnAutoResize(const CefSize& new_size) {
REQUIRE_MAIN_THREAD();
if (!hwnd_)
return;
int new_width = new_size.width;
// Make the window wide enough to drag by the top menu bar.
if (new_width < 200)
new_width = 200;
const float device_scale_factor = GetWindowScaleFactor(hwnd_);
RECT rect = {0, 0, LogicalToDevice(new_width, device_scale_factor),
LogicalToDevice(new_size.height, device_scale_factor)};
DWORD style = GetWindowLong(hwnd_, GWL_STYLE);
DWORD ex_style = GetWindowLong(hwnd_, GWL_EXSTYLE);
bool has_menu = !(style & WS_CHILD) && (GetMenu(hwnd_) != nullptr);
// The size value is for the client area. Calculate the whole window size
// based on the current style.
AdjustWindowRectEx(&rect, style, has_menu, ex_style);
// Size the window. The left/top values may be negative.
// Also show the window if it's not currently visible.
SetWindowPos(hwnd_, nullptr, 0, 0, rect.right - rect.left,
rect.bottom - rect.top,
SWP_NOZORDER | SWP_NOMOVE | SWP_NOACTIVATE | SWP_SHOWWINDOW);
}
void RootWindowWin::OnSetLoadingState(bool isLoading,
bool canGoBack,
bool canGoForward) {
REQUIRE_MAIN_THREAD();
if (with_controls_) {
EnableWindow(back_hwnd_, canGoBack);
EnableWindow(forward_hwnd_, canGoForward);
EnableWindow(reload_hwnd_, !isLoading);
EnableWindow(stop_hwnd_, isLoading);
EnableWindow(edit_hwnd_, TRUE);
}
if (!isLoading && GetWindowLongPtr(hwnd_, GWL_EXSTYLE) & WS_EX_NOACTIVATE) {
// Done with the initial navigation. Remove the WS_EX_NOACTIVATE style so
// that future mouse clicks inside the browser correctly activate and focus
// the window. For the top-level window removing this style causes Windows
// to display the task bar button.
SetWindowLongPtr(hwnd_, GWL_EXSTYLE,
GetWindowLongPtr(hwnd_, GWL_EXSTYLE) & ~WS_EX_NOACTIVATE);
if (browser_window_) {
HWND browser_hwnd = browser_window_->GetWindowHandle();
SetWindowLongPtr(
browser_hwnd, GWL_EXSTYLE,
GetWindowLongPtr(browser_hwnd, GWL_EXSTYLE) & ~WS_EX_NOACTIVATE);
}
}
}
namespace {
LPCWSTR kParentWndProc = L"CefParentWndProc";
LPCWSTR kDraggableRegion = L"CefDraggableRegion";
LRESULT CALLBACK SubclassedWindowProc(HWND hWnd,
UINT message,
WPARAM wParam,
LPARAM lParam) {
WNDPROC hParentWndProc =
reinterpret_cast<WNDPROC>(::GetPropW(hWnd, kParentWndProc));
HRGN hRegion = reinterpret_cast<HRGN>(::GetPropW(hWnd, kDraggableRegion));
if (message == WM_NCHITTEST) {
LRESULT hit = CallWindowProc(hParentWndProc, hWnd, message, wParam, lParam);
if (hit == HTCLIENT) {
POINTS points = MAKEPOINTS(lParam);
POINT point = {points.x, points.y};
::ScreenToClient(hWnd, &point);
if (::PtInRegion(hRegion, point.x, point.y)) {
// Let the parent window handle WM_NCHITTEST by returning HTTRANSPARENT
// in child windows.
return HTTRANSPARENT;
}
}
return hit;
}
return CallWindowProc(hParentWndProc, hWnd, message, wParam, lParam);
}
void SubclassWindow(HWND hWnd, HRGN hRegion) {
HANDLE hParentWndProc = ::GetPropW(hWnd, kParentWndProc);
if (hParentWndProc) {
return;
}
SetLastError(0);
LONG_PTR hOldWndProc = SetWindowLongPtr(
hWnd, GWLP_WNDPROC, reinterpret_cast<LONG_PTR>(SubclassedWindowProc));
if (hOldWndProc == 0 && GetLastError() != ERROR_SUCCESS) {
return;
}
::SetPropW(hWnd, kParentWndProc, reinterpret_cast<HANDLE>(hOldWndProc));
::SetPropW(hWnd, kDraggableRegion, reinterpret_cast<HANDLE>(hRegion));
}
void UnSubclassWindow(HWND hWnd) {
LONG_PTR hParentWndProc =
reinterpret_cast<LONG_PTR>(::GetPropW(hWnd, kParentWndProc));
if (hParentWndProc) {
[[maybe_unused]] LONG_PTR hPreviousWndProc =
SetWindowLongPtr(hWnd, GWLP_WNDPROC, hParentWndProc);
DCHECK_EQ(hPreviousWndProc,
reinterpret_cast<LONG_PTR>(SubclassedWindowProc));
}
::RemovePropW(hWnd, kParentWndProc);
::RemovePropW(hWnd, kDraggableRegion);
}
BOOL CALLBACK SubclassWindowsProc(HWND hwnd, LPARAM lParam) {
SubclassWindow(hwnd, reinterpret_cast<HRGN>(lParam));
return TRUE;
}
BOOL CALLBACK UnSubclassWindowsProc(HWND hwnd, LPARAM lParam) {
UnSubclassWindow(hwnd);
return TRUE;
}
} // namespace
void RootWindowWin::OnSetDraggableRegions(
const std::vector<CefDraggableRegion>& regions) {
REQUIRE_MAIN_THREAD();
// Reset draggable region.
::SetRectRgn(draggable_region_, 0, 0, 0, 0);
// Determine new draggable region.
std::vector<CefDraggableRegion>::const_iterator it = regions.begin();
for (; it != regions.end(); ++it) {
HRGN region = ::CreateRectRgn(it->bounds.x, it->bounds.y,
it->bounds.x + it->bounds.width,
it->bounds.y + it->bounds.height);
::CombineRgn(draggable_region_, draggable_region_, region,
it->draggable ? RGN_OR : RGN_DIFF);
::DeleteObject(region);
}
// Subclass child window procedures in order to do hit-testing.
// This will be a no-op, if it is already subclassed.
if (hwnd_) {
WNDENUMPROC proc =
!regions.empty() ? SubclassWindowsProc : UnSubclassWindowsProc;
::EnumChildWindows(hwnd_, proc,
reinterpret_cast<LPARAM>(draggable_region_));
}
}
void RootWindowWin::NotifyDestroyedIfDone() {
// Notify once both the window and the browser have been destroyed.
if (window_destroyed_ && browser_destroyed_)
delegate_->OnRootWindowDestroyed(this);
}
} // namespace client