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native_window_views.cc
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native_window_views.cc
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// Copyright (c) 2014 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "atom/browser/native_window_views.h"
#include <string>
#include <vector>
#include "atom/browser/ui/views/menu_bar.h"
#include "atom/browser/window_list.h"
#include "atom/common/color_util.h"
#include "atom/common/native_mate_converters/image_converter.h"
#include "atom/common/options_switches.h"
#include "base/strings/utf_string_conversions.h"
#include "brightray/browser/inspectable_web_contents.h"
#include "brightray/browser/inspectable_web_contents_view.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/native_web_keyboard_event.h"
#include "extensions/common/draggable_region.h"
#include "native_mate/dictionary.h"
#include "ui/aura/window_tree_host.h"
#include "ui/base/hit_test.h"
#include "ui/gfx/image/image.h"
#include "ui/views/background.h"
#include "ui/views/controls/webview/unhandled_keyboard_event_handler.h"
#include "ui/views/controls/webview/webview.h"
#include "ui/views/widget/native_widget_private.h"
#include "ui/views/widget/widget.h"
#include "ui/views/window/client_view.h"
#include "ui/wm/core/shadow_types.h"
#include "ui/wm/core/window_util.h"
#if defined(USE_X11)
#include "atom/browser/browser.h"
#include "atom/browser/ui/views/frameless_view.h"
#include "atom/browser/ui/views/global_menu_bar_x11.h"
#include "atom/browser/ui/views/native_frame_view.h"
#include "atom/browser/ui/x/event_disabler.h"
#include "atom/browser/ui/x/window_state_watcher.h"
#include "atom/browser/ui/x/x_window_utils.h"
#include "base/strings/string_util.h"
#include "chrome/browser/ui/libgtkui/unity_service.h"
#include "ui/base/x/x11_util.h"
#include "ui/gfx/x/x11_types.h"
#include "ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h"
#include "ui/views/window/native_frame_view.h"
#elif defined(OS_WIN)
#include <wrl/client.h>
#include "atom/browser/ui/views/win_frame_view.h"
#include "atom/browser/ui/win/atom_desktop_window_tree_host_win.h"
#include "skia/ext/skia_utils_win.h"
#include "ui/base/win/shell.h"
#include "ui/display/display.h"
#include "ui/display/screen.h"
#include "ui/display/win/screen_win.h"
#include "ui/views/widget/desktop_aura/desktop_native_widget_aura.h"
#endif
using extensions::DraggableRegion;
namespace atom {
namespace {
// The menu bar height in pixels.
#if defined(OS_WIN)
const int kMenuBarHeight = 20;
#else
const int kMenuBarHeight = 25;
#endif
#if defined(OS_WIN)
void FlipWindowStyle(HWND handle, bool on, DWORD flag) {
DWORD style = ::GetWindowLong(handle, GWL_STYLE);
if (on)
style |= flag;
else
style &= ~flag;
::SetWindowLong(handle, GWL_STYLE, style);
}
#endif
bool IsAltKey(const content::NativeWebKeyboardEvent& event) {
return event.windows_key_code == ui::VKEY_MENU;
}
bool IsAltModifier(const content::NativeWebKeyboardEvent& event) {
typedef content::NativeWebKeyboardEvent::Modifiers Modifiers;
int modifiers = event.GetModifiers();
modifiers &= ~Modifiers::kNumLockOn;
modifiers &= ~Modifiers::kCapsLockOn;
return (modifiers == Modifiers::kAltKey) ||
(modifiers == (Modifiers::kAltKey | Modifiers::kIsLeft)) ||
(modifiers == (Modifiers::kAltKey | Modifiers::kIsRight));
}
#if defined(USE_X11)
int SendClientEvent(XDisplay* display, ::Window window, const char* msg) {
XEvent event = {};
event.xclient.type = ClientMessage;
event.xclient.send_event = x11::True;
event.xclient.message_type = XInternAtom(display, msg, x11::False);
event.xclient.window = window;
event.xclient.format = 32;
XSendEvent(display, DefaultRootWindow(display), x11::False,
SubstructureRedirectMask | SubstructureNotifyMask, &event);
XFlush(display);
return x11::True;
}
#endif
class NativeWindowClientView : public views::ClientView {
public:
NativeWindowClientView(views::Widget* widget,
NativeWindowViews* contents_view)
: views::ClientView(widget, contents_view) {
}
virtual ~NativeWindowClientView() {}
bool CanClose() override {
static_cast<NativeWindowViews*>(contents_view())->RequestToClosePage();
return false;
}
private:
DISALLOW_COPY_AND_ASSIGN(NativeWindowClientView);
};
} // namespace
NativeWindowViews::NativeWindowViews(
brightray::InspectableWebContents* web_contents,
const mate::Dictionary& options,
NativeWindow* parent)
: NativeWindow(web_contents, options, parent),
window_(new views::Widget),
web_view_(inspectable_web_contents()->GetView()->GetView()),
menu_bar_autohide_(false),
menu_bar_visible_(false),
menu_bar_alt_pressed_(false),
#if defined(OS_WIN)
checked_for_a11y_support_(false),
thick_frame_(true),
#endif
keyboard_event_handler_(new views::UnhandledKeyboardEventHandler),
disable_count_(0),
use_content_size_(false),
movable_(true),
resizable_(true),
maximizable_(true),
minimizable_(true),
fullscreenable_(true) {
options.Get(options::kTitle, &title_);
options.Get(options::kAutoHideMenuBar, &menu_bar_autohide_);
#if defined(OS_WIN)
// On Windows we rely on the CanResize() to indicate whether window can be
// resized, and it should be set before window is created.
options.Get(options::kResizable, &resizable_);
options.Get(options::kMinimizable, &minimizable_);
options.Get(options::kMaximizable, &maximizable_);
// Transparent window must not have thick frame.
options.Get("thickFrame", &thick_frame_);
#endif
if (enable_larger_than_screen())
// We need to set a default maximum window size here otherwise Windows
// will not allow us to resize the window larger than screen.
// Setting directly to INT_MAX somehow doesn't work, so we just divide
// by 10, which should still be large enough.
SetContentSizeConstraints(extensions::SizeConstraints(
gfx::Size(), gfx::Size(INT_MAX / 10, INT_MAX / 10)));
int width = 800, height = 600;
options.Get(options::kWidth, &width);
options.Get(options::kHeight, &height);
gfx::Rect bounds(0, 0, width, height);
widget_size_ = bounds.size();
window_->AddObserver(this);
views::Widget::InitParams params;
params.ownership = views::Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
params.bounds = bounds;
params.delegate = this;
params.type = views::Widget::InitParams::TYPE_WINDOW;
params.remove_standard_frame = !has_frame();
/* if (transparent())
params.opacity = views::Widget::InitParams::TRANSLUCENT_WINDOW;
// The given window is most likely not rectangular since it uses
// transparency and has no standard frame, don't show a shadow for it.
if (transparent() && !has_frame())
params.shadow_type = views::Widget::InitParams::SHADOW_TYPE_NONE;*/
bool focusable;
if (options.Get(options::kFocusable, &focusable) && !focusable)
params.activatable = views::Widget::InitParams::ACTIVATABLE_NO;
#if defined(OS_WIN)
/** Registers handlers used to:
* - listen for windows events via PreHandleMSG
* - events include WM_GETOBJECT / WM_COMMAND / WM_SIZE / WM_MOVING / WM_MOVE
* - \see src/electron/atom/browser/native_window_views_win.cc
* - override the client area inset
* - used to force border of 0 for frameless windows
* - \see src/electron/atom/browser/ui/win/atom_desktop_window_tree_host_win.cc
*
* Important things to note:
* - views::Widget is located in Chromium at src/ui/views/widget/widget.cc
* - Widget acts as a proxy for DesktopNativeWidgetAura (it passes calls through)
* - DesktopNativeWidgetAura then calls AtomDesktopWindowTreeHostWin as needed
*/
if (parent)
params.parent = parent->GetNativeWindow();
bool show;
if (options.Get(options::kShow, &show) && !show)
params.activatable = views::Widget::InitParams::ACTIVATABLE_NO;
params.native_widget =
new views::DesktopNativeWidgetAura(window_.get());
atom_desktop_window_tree_host_win_ = new AtomDesktopWindowTreeHostWin(
this,
window_.get(),
static_cast<views::DesktopNativeWidgetAura*>(params.native_widget));
params.desktop_window_tree_host = atom_desktop_window_tree_host_win_;
#elif defined(USE_X11)
std::string name = Browser::Get()->GetName();
// Set WM_WINDOW_ROLE.
params.wm_role_name = "browser-window";
// Set WM_CLASS.
params.wm_class_name = base::ToLowerASCII(name);
params.wm_class_class = name;
#endif
window_->Init(params);
bool fullscreen = false;
options.Get(options::kFullscreen, &fullscreen);
std::string window_type;
options.Get(options::kType, &window_type);
#if defined(USE_X11)
// Start monitoring window states.
window_state_watcher_.reset(new WindowStateWatcher(this));
// Set _GTK_THEME_VARIANT to dark if we have "dark-theme" option set.
bool use_dark_theme = false;
if (options.Get(options::kDarkTheme, &use_dark_theme) && use_dark_theme) {
XDisplay* xdisplay = gfx::GetXDisplay();
XChangeProperty(xdisplay, GetAcceleratedWidget(),
XInternAtom(xdisplay, "_GTK_THEME_VARIANT", x11::False),
XInternAtom(xdisplay, "UTF8_STRING", x11::False),
8, PropModeReplace,
reinterpret_cast<const unsigned char*>("dark"),
4);
}
// Before the window is mapped the SetWMSpecState can not work, so we have
// to manually set the _NET_WM_STATE.
std::vector<::Atom> state_atom_list;
bool skip_taskbar = false;
if (options.Get(options::kSkipTaskbar, &skip_taskbar) && skip_taskbar) {
state_atom_list.push_back(GetAtom("_NET_WM_STATE_SKIP_TASKBAR"));
}
// Before the window is mapped, there is no SHOW_FULLSCREEN_STATE.
if (fullscreen) {
state_atom_list.push_back(GetAtom("_NET_WM_STATE_FULLSCREEN"));
}
if (parent) {
SetParentWindow(parent);
// Force using dialog type for child window.
window_type = "dialog";
// Modal window needs the _NET_WM_STATE_MODAL hint.
if (is_modal())
state_atom_list.push_back(GetAtom("_NET_WM_STATE_MODAL"));
}
ui::SetAtomArrayProperty(GetAcceleratedWidget(), "_NET_WM_STATE", "ATOM",
state_atom_list);
// Set the _NET_WM_WINDOW_TYPE.
if (!window_type.empty())
SetWindowType(GetAcceleratedWidget(), window_type);
#endif
AddChildView(web_view_);
#if defined(OS_WIN)
if (!has_frame()) {
// Set Window style so that we get a minimize and maximize animation when
// frameless.
DWORD frame_style = WS_CAPTION;
if (resizable_)
frame_style |= WS_THICKFRAME;
if (minimizable_)
frame_style |= WS_MINIMIZEBOX;
if (maximizable_)
frame_style |= WS_MAXIMIZEBOX;
// We should not show a frame for transparent window.
if (!thick_frame_)
frame_style &= ~(WS_THICKFRAME | WS_CAPTION);
::SetWindowLong(GetAcceleratedWidget(), GWL_STYLE, frame_style);
}
LONG ex_style = ::GetWindowLong(GetAcceleratedWidget(), GWL_EXSTYLE);
// Window without thick frame has to have WS_EX_COMPOSITED style.
if (!thick_frame_)
ex_style |= WS_EX_COMPOSITED;
if (window_type == "toolbar")
ex_style |= WS_EX_TOOLWINDOW;
::SetWindowLong(GetAcceleratedWidget(), GWL_EXSTYLE, ex_style);
#endif
// TODO(zcbenz): This was used to force using native frame on Windows 2003, we
// should check whether setting it in InitParams can work.
if (has_frame()) {
window_->set_frame_type(views::Widget::FrameType::FRAME_TYPE_FORCE_NATIVE);
window_->FrameTypeChanged();
}
gfx::Size size = bounds.size();
if (has_frame() &&
options.Get(options::kUseContentSize, &use_content_size_) &&
use_content_size_)
size = ContentBoundsToWindowBounds(gfx::Rect(size)).size();
window_->CenterWindow(size);
Layout();
#if defined(OS_WIN)
// Save initial window state.
if (fullscreen)
last_window_state_ = ui::SHOW_STATE_FULLSCREEN;
else
last_window_state_ = ui::SHOW_STATE_NORMAL;
last_normal_bounds_ = GetBounds();
#endif
}
NativeWindowViews::~NativeWindowViews() {
window_->RemoveObserver(this);
}
void NativeWindowViews::Close() {
if (!IsClosable()) {
WindowList::WindowCloseCancelled(this);
return;
}
window_->Close();
}
void NativeWindowViews::CloseImmediately() {
window_->CloseNow();
}
void NativeWindowViews::Focus(bool focus) {
// For hidden window focus() should do nothing.
if (!IsVisible() || focus == IsFocused())
return;
if (focus) {
#if defined(OS_WIN)
window_->Activate();
#elif defined(USE_X11)
// The "Activate" implementation of Chromium is not reliable on Linux.
::Window window = GetAcceleratedWidget();
XDisplay* xdisplay = gfx::GetXDisplay();
SendClientEvent(xdisplay, window, "_NET_ACTIVE_WINDOW");
XMapRaised(xdisplay, window);
#endif
} else {
window_->Deactivate();
}
}
bool NativeWindowViews::IsActive() const {
return window_->IsActive();
}
bool NativeWindowViews::IsFocused() {
return window_->IsActive();
}
void NativeWindowViews::Show() {
if (IsVisible())
return;
SetFocusable(true);
if (is_modal() && NativeWindow::parent())
static_cast<NativeWindowViews*>(NativeWindow::parent())->SetEnabled(false);
window_->native_widget_private()->ShowWithWindowState(GetRestoredState());
NotifyWindowShow();
#if defined(USE_X11)
if (global_menu_bar_)
global_menu_bar_->OnWindowMapped();
#endif
}
void NativeWindowViews::ShowInactive() {
window_->ShowInactive();
NotifyWindowShow();
#if defined(USE_X11)
if (global_menu_bar_)
global_menu_bar_->OnWindowMapped();
#endif
}
void NativeWindowViews::Hide() {
if (!IsVisible())
return;
if (is_modal() && NativeWindow::parent())
static_cast<NativeWindowViews*>(NativeWindow::parent())->SetEnabled(true);
window_->Hide();
NotifyWindowHide();
SetFocusable(false);
#if defined(USE_X11)
if (global_menu_bar_)
global_menu_bar_->OnWindowUnmapped();
#endif
}
bool NativeWindowViews::IsVisible() const {
return window_->IsVisible();
}
bool NativeWindowViews::IsEnabled() {
#if defined(OS_WIN)
return ::IsWindowEnabled(GetAcceleratedWidget());
#elif defined(USE_X11)
return !event_disabler_.get();
#endif
}
void NativeWindowViews::Activate() {
window_->Activate();
}
void NativeWindowViews::Deactivate() {
window_->Deactivate();
}
void NativeWindowViews::Maximize() {
#if defined(OS_WIN)
// For window without WS_THICKFRAME style, we can not call Maximize().
if (!thick_frame_) {
restore_bounds_ = GetBounds();
auto display =
display::Screen::GetScreen()->GetDisplayNearestPoint(GetPosition());
SetBounds(display.work_area(), false);
return;
}
#endif
if (IsVisible())
window_->Maximize();
else
window_->native_widget_private()->ShowWithWindowState(
ui::SHOW_STATE_MAXIMIZED);
}
void NativeWindowViews::Unmaximize() {
#if defined(OS_WIN)
if (!thick_frame_) {
SetBounds(restore_bounds_, false);
return;
}
#endif
window_->Restore();
}
bool NativeWindowViews::IsMaximized() const {
return window_->IsMaximized();
}
void NativeWindowViews::Minimize() {
if (IsVisible())
window_->Minimize();
else
window_->native_widget_private()->ShowWithWindowState(
ui::SHOW_STATE_MINIMIZED);
}
void NativeWindowViews::Restore() {
window_->Restore();
}
bool NativeWindowViews::IsMinimized() const {
return window_->IsMinimized();
}
void NativeWindowViews::SetFullScreen(bool fullscreen) {
if (!IsFullScreenable())
return;
#if defined(OS_WIN)
// There is no native fullscreen state on Windows.
if (fullscreen) {
last_window_state_ = ui::SHOW_STATE_FULLSCREEN;
NotifyWindowEnterFullScreen();
} else {
last_window_state_ = ui::SHOW_STATE_NORMAL;
NotifyWindowLeaveFullScreen();
}
// For window without WS_THICKFRAME style, we can not call SetFullscreen().
if (!thick_frame_) {
if (fullscreen) {
restore_bounds_ = GetBounds();
auto display =
display::Screen::GetScreen()->GetDisplayNearestPoint(GetPosition());
SetBounds(display.bounds(), false);
} else {
SetBounds(restore_bounds_, false);
}
return;
}
// We set the new value after notifying, so we can handle the size event
// correctly.
window_->SetFullscreen(fullscreen);
#else
if (IsVisible())
window_->SetFullscreen(fullscreen);
else if (fullscreen)
window_->native_widget_private()->ShowWithWindowState(
ui::SHOW_STATE_FULLSCREEN);
// Auto-hide menubar when in fullscreen.
if (fullscreen)
SetMenuBarVisibility(false);
else
SetMenuBarVisibility(!menu_bar_autohide_);
#endif
}
bool NativeWindowViews::IsFullscreen() const {
return window_->IsFullscreen();
}
void NativeWindowViews::SetBounds(const gfx::Rect& bounds) {
#if defined(USE_X11)
// On Linux the minimum and maximum size should be updated with window size
// when window is not resizable.
if (!resizable_) {
SetMaximumSize(bounds.size());
SetMinimumSize(bounds.size());
}
#endif
window_->SetBounds(bounds);
}
void NativeWindowViews::SetBounds(const gfx::Rect& bounds, bool animate) {
SetBounds(bounds);
}
gfx::Rect NativeWindowViews::GetRestoredBounds() const {
return window_->GetRestoredBounds();
}
gfx::Rect NativeWindowViews::GetBounds() const {
#if defined(OS_WIN)
if (IsMinimized())
return window_->GetRestoredBounds();
#endif
return window_->GetWindowBoundsInScreen();
}
gfx::Rect NativeWindowViews::GetContentBounds() {
return web_view_->GetBoundsInScreen();
}
gfx::Size NativeWindowViews::GetContentSize() {
#if defined(OS_WIN)
if (IsMinimized())
return NativeWindow::GetContentSize();
#endif
return web_view_->size();
}
void NativeWindowViews::SetContentSizeConstraints(
const extensions::SizeConstraints& size_constraints) {
NativeWindow::SetContentSizeConstraints(size_constraints);
// widget_delegate() is only available after Init() is called, we make use of
// this to determine whether native widget has initialized.
if (window_ && window_->widget_delegate())
window_->OnSizeConstraintsChanged();
#if defined(USE_X11)
if (resizable_)
old_size_constraints_ = size_constraints;
#endif
}
void NativeWindowViews::SetResizable(bool resizable) {
#if defined(OS_WIN)
if (thick_frame_)
FlipWindowStyle(GetAcceleratedWidget(), resizable, WS_THICKFRAME);
#elif defined(USE_X11)
if (resizable != resizable_) {
// On Linux there is no "resizable" property of a window, we have to set
// both the minimum and maximum size to the window size to achieve it.
if (resizable) {
SetContentSizeConstraints(old_size_constraints_);
} else {
old_size_constraints_ = GetContentSizeConstraints();
resizable_ = false;
gfx::Size content_size = GetContentSize();
SetContentSizeConstraints(
extensions::SizeConstraints(content_size, content_size));
}
}
#endif
resizable_ = resizable;
}
bool NativeWindowViews::IsResizable() {
#if defined(OS_WIN)
if (thick_frame_) {
return ::GetWindowLong(GetAcceleratedWidget(), GWL_STYLE) & WS_THICKFRAME;
} else {
return CanResize();
}
#else
return CanResize();
#endif
}
void NativeWindowViews::SetMovable(bool movable) {
movable_ = movable;
}
bool NativeWindowViews::IsMovable() {
#if defined(OS_WIN)
return movable_;
#else
return true; // Not implemented on Linux.
#endif
}
void NativeWindowViews::SetMinimizable(bool minimizable) {
#if defined(OS_WIN)
FlipWindowStyle(GetAcceleratedWidget(), minimizable, WS_MINIMIZEBOX);
#endif
minimizable_ = minimizable;
}
bool NativeWindowViews::IsMinimizable() {
#if defined(OS_WIN)
return ::GetWindowLong(GetAcceleratedWidget(), GWL_STYLE) & WS_MINIMIZEBOX;
#else
return true; // Not implemented on Linux.
#endif
}
void NativeWindowViews::SetMaximizable(bool maximizable) {
#if defined(OS_WIN)
FlipWindowStyle(GetAcceleratedWidget(), maximizable, WS_MAXIMIZEBOX);
#endif
maximizable_ = maximizable;
}
bool NativeWindowViews::IsMaximizable() {
#if defined(OS_WIN)
return ::GetWindowLong(GetAcceleratedWidget(), GWL_STYLE) & WS_MAXIMIZEBOX;
#else
return true; // Not implemented on Linux.
#endif
}
void NativeWindowViews::SetFullScreenable(bool fullscreenable) {
fullscreenable_ = fullscreenable;
}
bool NativeWindowViews::IsFullScreenable() {
return fullscreenable_;
}
void NativeWindowViews::SetClosable(bool closable) {
#if defined(OS_WIN)
HMENU menu = GetSystemMenu(GetAcceleratedWidget(), false);
if (closable) {
EnableMenuItem(menu, SC_CLOSE, MF_BYCOMMAND | MF_ENABLED);
} else {
EnableMenuItem(menu, SC_CLOSE, MF_BYCOMMAND | MF_DISABLED | MF_GRAYED);
}
#endif
}
bool NativeWindowViews::IsClosable() {
#if defined(OS_WIN)
HMENU menu = GetSystemMenu(GetAcceleratedWidget(), false);
MENUITEMINFO info;
memset(&info, 0, sizeof(info));
info.cbSize = sizeof(info);
info.fMask = MIIM_STATE;
if (!GetMenuItemInfo(menu, SC_CLOSE, false, &info)) {
return false;
}
return !(info.fState & MFS_DISABLED);
#elif defined(USE_X11)
return true;
#endif
}
void NativeWindowViews::SetAlwaysOnTop(bool top) {
window_->SetAlwaysOnTop(top);
}
bool NativeWindowViews::IsAlwaysOnTop() const {
return window_->IsAlwaysOnTop();
}
void NativeWindowViews::Center() {
window_->CenterWindow(GetSize());
}
void NativeWindowViews::SetTitle(const std::string& title) {
title_ = title;
window_->UpdateWindowTitle();
}
std::string NativeWindowViews::GetTitle() {
return title_;
}
void NativeWindowViews::FlashFrame(bool flash) {
#if defined(OS_WIN)
// The Chromium's implementation has a bug stopping flash.
if (!flash) {
FLASHWINFO fwi;
fwi.cbSize = sizeof(fwi);
fwi.hwnd = GetAcceleratedWidget();
fwi.dwFlags = FLASHW_STOP;
fwi.uCount = 0;
FlashWindowEx(&fwi);
return;
}
#endif
window_->FlashFrame(flash);
}
void NativeWindowViews::SetSkipTaskbar(bool skip) {
#if defined(OS_WIN)
Microsoft::WRL::ComPtr<ITaskbarList> taskbar;
if (FAILED(::CoCreateInstance(CLSID_TaskbarList, nullptr,
CLSCTX_INPROC_SERVER,
IID_PPV_ARGS(&taskbar))) ||
FAILED(taskbar->HrInit()))
return;
if (skip) {
taskbar->DeleteTab(GetAcceleratedWidget());
} else {
taskbar->AddTab(GetAcceleratedWidget());
taskbar_host_.RestoreThumbarButtons(GetAcceleratedWidget());
}
#elif defined(USE_X11)
SetWMSpecState(GetAcceleratedWidget(), skip,
GetAtom("_NET_WM_STATE_SKIP_TASKBAR"));
#endif
}
void NativeWindowViews::SetKiosk(bool kiosk) {
SetFullScreen(kiosk);
}
bool NativeWindowViews::IsKiosk() const {
return IsFullscreen();
}
void NativeWindowViews::SetBackgroundColor(const std::string& color_name) {
// web views' background color.
SkColor background_color = ParseHexColor(color_name);
SetBackground(views::CreateSolidBackground(background_color));
#if defined(OS_WIN)
// Set the background color of native window.
HBRUSH brush = CreateSolidBrush(skia::SkColorToCOLORREF(background_color));
ULONG_PTR previous_brush = SetClassLongPtr(
GetAcceleratedWidget(),
GCLP_HBRBACKGROUND,
reinterpret_cast<LONG_PTR>(brush));
if (previous_brush)
DeleteObject((HBRUSH)previous_brush);
#endif
}
void NativeWindowViews::SetHasShadow(bool has_shadow) {
wm::SetShadowElevation(GetNativeWindow(),
has_shadow ? ::wm::kShadowElevationInactiveWindow
: wm::kShadowElevationNone);
}
bool NativeWindowViews::HasShadow() {
int elevation = GetNativeWindow()->GetProperty(wm::kShadowElevationKey);
return elevation != wm::kShadowElevationNone;
}
void NativeWindowViews::SetIgnoreMouseEvents(bool ignore) {
#if defined(OS_WIN)
LONG ex_style = ::GetWindowLong(GetAcceleratedWidget(), GWL_EXSTYLE);
if (ignore)
ex_style |= (WS_EX_TRANSPARENT | WS_EX_LAYERED);
else
ex_style &= ~(WS_EX_TRANSPARENT | WS_EX_LAYERED);
::SetWindowLong(GetAcceleratedWidget(), GWL_EXSTYLE, ex_style);
#elif defined(USE_X11)
if (ignore) {
XRectangle r = {0, 0, 1, 1};
XShapeCombineRectangles(gfx::GetXDisplay(), GetAcceleratedWidget(),
ShapeInput, 0, 0, &r, 1, ShapeSet, YXBanded);
} else {
XShapeCombineMask(gfx::GetXDisplay(), GetAcceleratedWidget(),
ShapeInput, 0, 0, x11::None, ShapeSet);
}
#endif
}
void NativeWindowViews::SetContentProtection(bool enable) {
#if defined(OS_WIN)
DWORD affinity = enable ? WDA_MONITOR : WDA_NONE;
::SetWindowDisplayAffinity(GetAcceleratedWidget(), affinity);
#endif
}
void NativeWindowViews::SetFocusable(bool focusable) {
#if defined(OS_WIN)
LONG ex_style = ::GetWindowLong(GetAcceleratedWidget(), GWL_EXSTYLE);
if (focusable)
ex_style &= ~WS_EX_NOACTIVATE;
else
ex_style |= WS_EX_NOACTIVATE;
::SetWindowLong(GetAcceleratedWidget(), GWL_EXSTYLE, ex_style);
SetSkipTaskbar(!focusable);
if (!focusable)
Focus(false);
set_can_activate(focusable);
#endif
}
void NativeWindowViews::SetMenu(AtomMenuModel* menu_model) {
if (menu_model == nullptr) {
// Remove accelerators
accelerator_table_.clear();
GetFocusManager()->UnregisterAccelerators(this);
// and menu bar.
#if defined(USE_X11)
global_menu_bar_.reset();
#endif
SetMenuBarVisibility(false);
menu_bar_.reset();
return;
}
RegisterAccelerators(menu_model);
#if defined(USE_X11)
if (!global_menu_bar_ && ShouldUseGlobalMenuBar())
global_menu_bar_.reset(new GlobalMenuBarX11(this));
// Use global application menu bar when possible.
if (global_menu_bar_ && global_menu_bar_->IsServerStarted()) {
global_menu_bar_->SetMenu(menu_model);
return;
}
#endif
// Do not show menu bar in frameless window.
if (!has_frame())
return;
if (!menu_bar_) {
gfx::Size content_size = GetContentSize();
menu_bar_.reset(new MenuBar);
menu_bar_->set_owned_by_client();
if (!menu_bar_autohide_) {
SetMenuBarVisibility(true);
if (use_content_size_) {
// Enlarge the size constraints for the menu.
extensions::SizeConstraints constraints = GetContentSizeConstraints();
if (constraints.HasMinimumSize()) {
gfx::Size min_size = constraints.GetMinimumSize();
min_size.set_height(min_size.height() + kMenuBarHeight);
constraints.set_minimum_size(min_size);
}
if (constraints.HasMaximumSize()) {
gfx::Size max_size = constraints.GetMaximumSize();
max_size.set_height(max_size.height() + kMenuBarHeight);
constraints.set_maximum_size(max_size);
}
SetContentSizeConstraints(constraints);
// Resize the window to make sure content size is not changed.
SetContentSize(content_size);
}
}
}
menu_bar_->SetMenu(menu_model);
Layout();
}
void NativeWindowViews::SetParentWindow(NativeWindow* parent) {
NativeWindow::SetParentWindow(parent);
#if defined(USE_X11)
XDisplay* xdisplay = gfx::GetXDisplay();
XSetTransientForHint(
xdisplay, GetAcceleratedWidget(),
parent? parent->GetAcceleratedWidget() : DefaultRootWindow(xdisplay));
#elif defined(OS_WIN) && defined(DEBUG)
// Should work, but does not, it seems that the views toolkit doesn't support
// reparenting on desktop.
if (parent) {
::SetParent(GetAcceleratedWidget(), parent->GetAcceleratedWidget());
views::Widget::ReparentNativeView(GetNativeWindow(),
parent->GetNativeWindow());
wm::AddTransientChild(parent->GetNativeWindow(), GetNativeWindow());
} else {
if (!GetNativeWindow()->parent())
return;
::SetParent(GetAcceleratedWidget(), NULL);
views::Widget::ReparentNativeView(GetNativeWindow(), nullptr);
wm::RemoveTransientChild(GetNativeWindow()->parent(), GetNativeWindow());
}
#endif
}
gfx::NativeWindow NativeWindowViews::GetNativeWindow() const {
return window_->GetNativeWindow();
}
void NativeWindowViews::SetProgressBar(
double progress, NativeWindow::ProgressState state) {
#if defined(OS_WIN)
taskbar_host_.SetProgressBar(GetAcceleratedWidget(), progress, state);
#elif defined(USE_X11)
if (unity::IsRunning()) {
unity::SetProgressFraction(progress);
}
#endif
}
void NativeWindowViews::SetOverlayIcon(const gfx::Image& overlay,
const std::string& description) {
#if defined(OS_WIN)
taskbar_host_.SetOverlayIcon(GetAcceleratedWidget(), overlay, description);
#endif
}
void NativeWindowViews::SetAutoHideMenuBar(bool auto_hide) {
menu_bar_autohide_ = auto_hide;
}
bool NativeWindowViews::IsMenuBarAutoHide() {
return menu_bar_autohide_;
}
void NativeWindowViews::SetMenuBarVisibility(bool visible) {
if (!menu_bar_ || menu_bar_visible_ == visible)
return;
// Always show the accelerator when the auto-hide menu bar shows.
if (menu_bar_autohide_)
menu_bar_->SetAcceleratorVisibility(visible);
menu_bar_visible_ = visible;
if (visible) {
DCHECK_EQ(child_count(), 1);
AddChildView(menu_bar_.get());
} else {
DCHECK_EQ(child_count(), 2);
RemoveChildView(menu_bar_.get());
}
Layout();
}