| // Copyright (c) 2012 The Chromium 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 "chrome/browser/ui/views/frame/browser_desktop_window_tree_host_win.h" |
| |
| #include <dwmapi.h> |
| |
| #include "base/macros.h" |
| #include "base/process/process_handle.h" |
| #include "base/win/windows_version.h" |
| #include "chrome/browser/lifetime/application_lifetime.h" |
| #include "chrome/browser/themes/theme_service.h" |
| #include "chrome/browser/themes/theme_service_factory.h" |
| #include "chrome/browser/ui/views/frame/browser_frame.h" |
| #include "chrome/browser/ui/views/frame/browser_view.h" |
| #include "chrome/browser/ui/views/frame/browser_window_property_manager_win.h" |
| #include "chrome/browser/ui/views/frame/system_menu_insertion_delegate_win.h" |
| #include "chrome/browser/ui/views/tabs/tab_strip.h" |
| #include "chrome/browser/win/titlebar_config.h" |
| #include "chrome/common/chrome_constants.h" |
| #include "ui/base/material_design/material_design_controller.h" |
| #include "ui/base/theme_provider.h" |
| #include "ui/display/win/screen_win.h" |
| #include "ui/gfx/geometry/point.h" |
| #include "ui/views/controls/menu/native_menu_win.h" |
| #include "ui/views/resources/grit/views_resources.h" |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // BrowserDesktopWindowTreeHostWin, public: |
| |
| BrowserDesktopWindowTreeHostWin::BrowserDesktopWindowTreeHostWin( |
| views::internal::NativeWidgetDelegate* native_widget_delegate, |
| views::DesktopNativeWidgetAura* desktop_native_widget_aura, |
| BrowserView* browser_view, |
| BrowserFrame* browser_frame) |
| : DesktopWindowTreeHostWin(native_widget_delegate, |
| desktop_native_widget_aura), |
| browser_view_(browser_view), |
| browser_frame_(browser_frame), |
| did_gdi_clear_(false) { |
| } |
| |
| BrowserDesktopWindowTreeHostWin::~BrowserDesktopWindowTreeHostWin() { |
| } |
| |
| views::NativeMenuWin* BrowserDesktopWindowTreeHostWin::GetSystemMenu() { |
| if (!system_menu_.get()) { |
| SystemMenuInsertionDelegateWin insertion_delegate; |
| system_menu_.reset( |
| new views::NativeMenuWin(browser_frame_->GetSystemMenuModel(), |
| GetHWND())); |
| system_menu_->Rebuild(&insertion_delegate); |
| } |
| return system_menu_.get(); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // BrowserDesktopWindowTreeHostWin, BrowserDesktopWindowTreeHost implementation: |
| |
| views::DesktopWindowTreeHost* |
| BrowserDesktopWindowTreeHostWin::AsDesktopWindowTreeHost() { |
| return this; |
| } |
| |
| int BrowserDesktopWindowTreeHostWin::GetMinimizeButtonOffset() const { |
| return minimize_button_metrics_.GetMinimizeButtonOffsetX(); |
| } |
| |
| bool BrowserDesktopWindowTreeHostWin::UsesNativeSystemMenu() const { |
| return true; |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // BrowserDesktopWindowTreeHostWin, views::DesktopWindowTreeHostWin overrides: |
| |
| int BrowserDesktopWindowTreeHostWin::GetInitialShowState() const { |
| STARTUPINFO si = {0}; |
| si.cb = sizeof(si); |
| si.dwFlags = STARTF_USESHOWWINDOW; |
| GetStartupInfo(&si); |
| return si.wShowWindow; |
| } |
| |
| bool BrowserDesktopWindowTreeHostWin::GetClientAreaInsets( |
| gfx::Insets* insets) const { |
| // Always use default insets for opaque frame. |
| if (!ShouldUseNativeFrame()) |
| return false; |
| |
| // Use default insets for popups and apps, unless we are custom drawing the |
| // titlebar. |
| if (!ShouldCustomDrawSystemTitlebar() && |
| !browser_view_->IsBrowserTypeNormal()) |
| return false; |
| |
| if (GetWidget()->IsFullscreen()) { |
| // In fullscreen mode there is no frame. |
| *insets = gfx::Insets(); |
| } else { |
| const int frame_thickness = |
| display::win::ScreenWin::GetSystemMetricsForHwnd( |
| GetHWND(), SM_CXSIZEFRAME); |
| // Reduce the Windows non-client border size because we extend the border |
| // into our client area in UpdateDWMFrame(). The top inset must be 0 or |
| // else Windows will draw a full native titlebar outside the client area. |
| *insets = gfx::Insets(0, frame_thickness, frame_thickness, |
| frame_thickness) - GetClientEdgeThicknesses(); |
| } |
| return true; |
| } |
| |
| void BrowserDesktopWindowTreeHostWin::HandleCreate() { |
| DesktopWindowTreeHostWin::HandleCreate(); |
| browser_window_property_manager_ = |
| BrowserWindowPropertyManager::CreateBrowserWindowPropertyManager( |
| browser_view_, GetHWND()); |
| } |
| |
| void BrowserDesktopWindowTreeHostWin::HandleDestroying() { |
| browser_window_property_manager_.reset(); |
| DesktopWindowTreeHostWin::HandleDestroying(); |
| } |
| |
| void BrowserDesktopWindowTreeHostWin::HandleFrameChanged() { |
| // Reinitialize the status bubble, since it needs to be initialized |
| // differently depending on whether or not DWM composition is enabled |
| browser_view_->InitStatusBubble(); |
| |
| // We need to update the glass region on or off before the base class adjusts |
| // the window region. |
| UpdateDWMFrame(); |
| DesktopWindowTreeHostWin::HandleFrameChanged(); |
| } |
| |
| void BrowserDesktopWindowTreeHostWin::HandleWindowScaleFactorChanged( |
| float window_scale_factor) { |
| DesktopWindowTreeHostWin::HandleWindowScaleFactorChanged(window_scale_factor); |
| minimize_button_metrics_.OnDpiChanged(); |
| } |
| |
| bool BrowserDesktopWindowTreeHostWin::PreHandleMSG(UINT message, |
| WPARAM w_param, |
| LPARAM l_param, |
| LRESULT* result) { |
| switch (message) { |
| case WM_ACTIVATE: |
| if (LOWORD(w_param) != WA_INACTIVE) |
| minimize_button_metrics_.OnHWNDActivated(); |
| return false; |
| case WM_ENDSESSION: |
| chrome::SessionEnding(); |
| return true; |
| case WM_INITMENUPOPUP: |
| GetSystemMenu()->UpdateStates(); |
| return true; |
| } |
| return DesktopWindowTreeHostWin::PreHandleMSG( |
| message, w_param, l_param, result); |
| } |
| |
| void BrowserDesktopWindowTreeHostWin::PostHandleMSG(UINT message, |
| WPARAM w_param, |
| LPARAM l_param) { |
| HWND hwnd = GetHWND(); |
| switch (message) { |
| case WM_CREATE: |
| minimize_button_metrics_.Init(hwnd); |
| break; |
| case WM_WINDOWPOSCHANGED: { |
| UpdateDWMFrame(); |
| |
| // Windows lies to us about the position of the minimize button before a |
| // window is visible. We use this position to place the incognito avatar |
| // in RTL mode, so when the window is shown, we need to re-layout and |
| // schedule a paint for the non-client frame view so that the icon top has |
| // the correct position when the window becomes visible. This fixes bugs |
| // where the icon appears to overlay the minimize button. Note that we |
| // will call Layout every time SetWindowPos is called with SWP_SHOWWINDOW, |
| // however callers typically are careful about not specifying this flag |
| // unless necessary to avoid flicker. This may be invoked during creation |
| // on XP and before the non_client_view has been created. |
| WINDOWPOS* window_pos = reinterpret_cast<WINDOWPOS*>(l_param); |
| views::NonClientView* non_client_view = GetWidget()->non_client_view(); |
| if (window_pos->flags & SWP_SHOWWINDOW && non_client_view) { |
| non_client_view->Layout(); |
| non_client_view->SchedulePaint(); |
| } |
| break; |
| } |
| case WM_ERASEBKGND: { |
| gfx::Insets insets; |
| if (!did_gdi_clear_ && GetClientAreaInsets(&insets)) { |
| // This is necessary to avoid white flashing in the titlebar area around |
| // the minimize/maximize/close buttons. |
| DCHECK_EQ(0, insets.top()); |
| HDC dc = GetDC(hwnd); |
| MARGINS margins = GetDWMFrameMargins(); |
| RECT client_rect; |
| GetClientRect(hwnd, &client_rect); |
| HBRUSH brush = CreateSolidBrush(0); |
| RECT rect = {0, 0, client_rect.right, margins.cyTopHeight}; |
| FillRect(dc, &rect, brush); |
| DeleteObject(brush); |
| ReleaseDC(hwnd, dc); |
| did_gdi_clear_ = true; |
| } |
| break; |
| } |
| case WM_DWMCOLORIZATIONCOLORCHANGED: { |
| // The activation border may have changed color. |
| views::NonClientView* non_client_view = GetWidget()->non_client_view(); |
| if (non_client_view) |
| non_client_view->SchedulePaint(); |
| break; |
| } |
| } |
| } |
| |
| views::FrameMode BrowserDesktopWindowTreeHostWin::GetFrameMode() const { |
| const views::FrameMode system_frame_mode = |
| ShouldCustomDrawSystemTitlebar() |
| ? views::FrameMode::SYSTEM_DRAWN_NO_CONTROLS |
| : views::FrameMode::SYSTEM_DRAWN; |
| |
| // We don't theme popup or app windows, so regardless of whether or not a |
| // theme is active for normal browser windows, we don't want to use the custom |
| // frame for popups/apps. |
| if (!browser_view_->IsBrowserTypeNormal() && |
| DesktopWindowTreeHostWin::GetFrameMode() == |
| views::FrameMode::SYSTEM_DRAWN) { |
| return system_frame_mode; |
| } |
| |
| // Otherwise, we use the native frame when we're told we should by the theme |
| // provider (e.g. no custom theme is active). |
| return GetWidget()->GetThemeProvider()->ShouldUseNativeFrame() |
| ? system_frame_mode |
| : views::FrameMode::CUSTOM_DRAWN; |
| } |
| |
| bool BrowserDesktopWindowTreeHostWin::ShouldUseNativeFrame() const { |
| if (!views::DesktopWindowTreeHostWin::ShouldUseNativeFrame()) |
| return false; |
| // This function can get called when the Browser window is closed i.e. in the |
| // context of the BrowserView destructor. |
| if (!browser_view_->browser()) |
| return false; |
| // We don't theme popup or app windows, so regardless of whether or not a |
| // theme is active for normal browser windows, we don't want to use the custom |
| // frame for popups/apps. |
| if (!browser_view_->IsBrowserTypeNormal()) |
| return true; |
| // Otherwise, we use the native frame when we're told we should by the theme |
| // provider (e.g. no custom theme is active). |
| return GetWidget()->GetThemeProvider()->ShouldUseNativeFrame(); |
| } |
| |
| bool BrowserDesktopWindowTreeHostWin::ShouldWindowContentsBeTransparent() |
| const { |
| return !ShouldCustomDrawSystemTitlebar() && |
| views::DesktopWindowTreeHostWin::ShouldWindowContentsBeTransparent(); |
| } |
| |
| void BrowserDesktopWindowTreeHostWin::FrameTypeChanged() { |
| views::DesktopWindowTreeHostWin::FrameTypeChanged(); |
| did_gdi_clear_ = false; |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // BrowserDesktopWindowTreeHostWin, private: |
| |
| void BrowserDesktopWindowTreeHostWin::UpdateDWMFrame() { |
| // For "normal" windows on Aero, we always need to reset the glass area |
| // correctly, even if we're not currently showing the native frame (e.g. |
| // because a theme is showing), so we explicitly check for that case rather |
| // than checking browser_frame_->ShouldUseNativeFrame() here. Using that here |
| // would mean we wouldn't reset the glass area to zero when moving from the |
| // native frame to an opaque frame, leading to graphical glitches behind the |
| // opaque frame. Instead, we use that function below to tell us whether the |
| // frame is currently native or opaque. |
| if (!GetWidget()->client_view() || !browser_view_->IsBrowserTypeNormal() || |
| !DesktopWindowTreeHostWin::ShouldUseNativeFrame()) |
| return; |
| |
| MARGINS margins = GetDWMFrameMargins(); |
| |
| DwmExtendFrameIntoClientArea(GetHWND(), &margins); |
| } |
| |
| gfx::Insets |
| BrowserDesktopWindowTreeHostWin::GetClientEdgeThicknesses() const { |
| // Maximized windows have no visible client edge; the content goes to |
| // the edge of the screen. Restored windows on Windows 10 don't paint |
| // the full 3D client edge, but paint content right to the edge of the |
| // client area. |
| if (IsMaximized() || |
| (base::win::GetVersion() >= base::win::VERSION_WIN10)) |
| return gfx::Insets(); |
| |
| const ui::ThemeProvider* const tp = GetWidget()->GetThemeProvider(); |
| return gfx::Insets( |
| 0, tp->GetImageSkiaNamed(IDR_CONTENT_LEFT_SIDE)->width(), |
| tp->GetImageSkiaNamed(IDR_CONTENT_BOTTOM_CENTER)->height(), |
| tp->GetImageSkiaNamed(IDR_CONTENT_RIGHT_SIDE)->width()); |
| } |
| |
| MARGINS BrowserDesktopWindowTreeHostWin::GetDWMFrameMargins() const { |
| // Don't extend the glass in at all if it won't be visible. |
| if (!ShouldUseNativeFrame() || GetWidget()->IsFullscreen() || |
| ShouldCustomDrawSystemTitlebar()) |
| return MARGINS{0}; |
| |
| // The glass should extend to the bottom of the tabstrip. |
| HWND hwnd = GetHWND(); |
| gfx::Rect tabstrip_bounds( |
| browser_frame_->GetBoundsForTabStrip(browser_view_->tabstrip())); |
| tabstrip_bounds = |
| display::win::ScreenWin::DIPToClientRect(hwnd, tabstrip_bounds); |
| |
| // Extend inwards far enough to go under the semitransparent client edges. |
| const gfx::Insets thicknesses = GetClientEdgeThicknesses(); |
| gfx::Point left_top = display::win::ScreenWin::DIPToClientPoint( |
| hwnd, gfx::Point(thicknesses.left(), thicknesses.top())); |
| gfx::Point right_bottom = display::win::ScreenWin::DIPToClientPoint( |
| hwnd, gfx::Point(thicknesses.right(), thicknesses.bottom())); |
| |
| if (base::win::GetVersion() < base::win::VERSION_WIN8) { |
| // The 2 px (not DIP) at the inner edges of the glass are a light and |
| // dark line, so we must inset further to account for those. |
| constexpr gfx::Vector2d kDWMEdgeThickness(2, 2); |
| left_top += kDWMEdgeThickness; |
| right_bottom += kDWMEdgeThickness; |
| } |
| |
| return MARGINS{left_top.x(), right_bottom.x(), |
| tabstrip_bounds.bottom() + left_top.y(), right_bottom.y()}; |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // BrowserDesktopWindowTreeHost, public: |
| |
| // static |
| BrowserDesktopWindowTreeHost* |
| BrowserDesktopWindowTreeHost::CreateBrowserDesktopWindowTreeHost( |
| views::internal::NativeWidgetDelegate* native_widget_delegate, |
| views::DesktopNativeWidgetAura* desktop_native_widget_aura, |
| BrowserView* browser_view, |
| BrowserFrame* browser_frame) { |
| return new BrowserDesktopWindowTreeHostWin(native_widget_delegate, |
| desktop_native_widget_aura, |
| browser_view, |
| browser_frame); |
| } |