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feat: enable Windows Control Overlay on Linux (#41769)

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Shelley Vohr 2024-06-27 14:56:36 +02:00 • committed by GitHub
parent 1d4b00692d
commit 32e5012017
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GPG key ID: B5690EEEBB952194
24 changed files with 1026 additions and 107 deletions
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27
shell/browser/api/electron_api_base_window.cc
View file

@ -40,6 +40,8 @@
#include "shell/browser/ui/views/win_frame_view.h"
#include "shell/browser/ui/win/taskbar_host.h"
#include "ui/base/win/shell.h"
#elif BUILDFLAG(IS_LINUX)
#include "shell/browser/ui/views/opaque_frame_view.h"
#endif
#if BUILDFLAG(IS_WIN)
@ -1041,11 +1043,13 @@ void BaseWindow::SetAppDetails(const gin_helper::Dictionary& options) {
relaunch_command, relaunch_display_name,
window_->GetAcceleratedWidget());
}
#endif
#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_LINUX)
void BaseWindow::SetTitleBarOverlay(const gin_helper::Dictionary& options,
gin_helper::Arguments* args) {
// Ensure WCO is already enabled on this window
if (!window_->titlebar_overlay_enabled()) {
if (!window_->IsWindowControlsOverlayEnabled()) {
args->ThrowError("Titlebar overlay is not enabled");
return;
}
@ -1090,13 +1094,18 @@ void BaseWindow::SetTitleBarOverlay(const gin_helper::Dictionary& options,
updated = true;
}
// If anything was updated, invalidate the layout and schedule a paint of the
// window's frame view
if (updated) {
auto* frame_view = static_cast<WinFrameView*>(
window->widget()->non_client_view()->frame_view());
frame_view->InvalidateCaptionButtons();
}
if (!updated)
return;
// If anything was updated, ensure the overlay is repainted.
#if BUILDFLAG(IS_WIN)
auto* frame_view = static_cast<WinFrameView*>(
window->widget()->non_client_view()->frame_view());
#else
auto* frame_view = static_cast<OpaqueFrameView*>(
window->widget()->non_client_view()->frame_view());
#endif
frame_view->InvalidateCaptionButtons();
}
#endif
@ -1286,6 +1295,8 @@ void BaseWindow::BuildPrototype(v8::Isolate* isolate,
.SetMethod("setThumbnailClip", &BaseWindow::SetThumbnailClip)
.SetMethod("setThumbnailToolTip", &BaseWindow::SetThumbnailToolTip)
.SetMethod("setAppDetails", &BaseWindow::SetAppDetails)
#endif
#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_LINUX)
.SetMethod("setTitleBarOverlay", &BaseWindow::SetTitleBarOverlay)
#endif
.SetProperty("id", &BaseWindow::GetID);

3
shell/browser/api/electron_api_base_window.h
View file

@ -241,6 +241,9 @@ class BaseWindow : public gin_helper::TrackableObject<BaseWindow>,
bool SetThumbnailClip(const gfx::Rect& region);
bool SetThumbnailToolTip(const std::string& tooltip);
void SetAppDetails(const gin_helper::Dictionary& options);
#endif
#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_LINUX)
void SetTitleBarOverlay(const gin_helper::Dictionary& options,
gin_helper::Arguments* args);
#endif

4
shell/browser/native_window.cc
View file

@ -122,10 +122,6 @@ NativeWindow::NativeWindow(const gin_helper::Dictionary& options,
int height;
if (titlebar_overlay_dict.Get(options::kOverlayHeight, &height))
titlebar_overlay_height_ = height;
#if !(BUILDFLAG(IS_WIN) || BUILDFLAG(IS_MAC))
DCHECK(false);
#endif
}
}

13
shell/browser/native_window.h
View file

@ -372,12 +372,23 @@ class NativeWindow : public base::SupportsUserData,
kHiddenInset,
kCustomButtonsOnHover,
};
TitleBarStyle title_bar_style() const { return title_bar_style_; }
bool IsWindowControlsOverlayEnabled() const {
bool valid_titlebar_style = title_bar_style() == TitleBarStyle::kHidden
#if BUILDFLAG(IS_MAC)
||
title_bar_style() == TitleBarStyle::kHiddenInset
#endif
;
return valid_titlebar_style && titlebar_overlay_;
}
int titlebar_overlay_height() const { return titlebar_overlay_height_; }
void set_titlebar_overlay_height(int height) {
titlebar_overlay_height_ = height;
}
bool titlebar_overlay_enabled() const { return titlebar_overlay_; }
bool has_frame() const { return has_frame_; }
void set_has_frame(bool has_frame) { has_frame_ = has_frame; }

22
shell/browser/native_window_views.cc
View file

@ -26,6 +26,7 @@
#include "base/strings/utf_string_conversions.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/desktop_media_id.h"
#include "content/public/common/color_parser.h"
#include "shell/browser/api/electron_api_web_contents.h"
#include "shell/browser/ui/inspectable_web_contents.h"
#include "shell/browser/ui/inspectable_web_contents_view.h"
@ -59,6 +60,7 @@
#include "shell/browser/ui/views/client_frame_view_linux.h"
#include "shell/browser/ui/views/frameless_view.h"
#include "shell/browser/ui/views/native_frame_view.h"
#include "shell/browser/ui/views/opaque_frame_view.h"
#include "shell/common/platform_util.h"
#include "ui/views/widget/desktop_aura/desktop_native_widget_aura.h"
#include "ui/views/window/native_frame_view.h"
@ -76,7 +78,6 @@
#elif BUILDFLAG(IS_WIN)
#include "base/win/win_util.h"
#include "base/win/windows_version.h"
#include "content/public/common/color_parser.h"
#include "shell/browser/ui/views/win_frame_view.h"
#include "shell/browser/ui/win/electron_desktop_native_widget_aura.h"
#include "skia/ext/skia_utils_win.h"
@ -220,6 +221,7 @@ NativeWindowViews::NativeWindowViews(const gin_helper::Dictionary& options,
overlay_button_color_ = color_utils::GetSysSkColor(COLOR_BTNFACE);
overlay_symbol_color_ = color_utils::GetSysSkColor(COLOR_BTNTEXT);
#endif
v8::Local<v8::Value> titlebar_overlay;
if (options.Get(options::ktitleBarOverlay, &titlebar_overlay) &&
@ -245,9 +247,11 @@ NativeWindowViews::NativeWindowViews(const gin_helper::Dictionary& options,
}
}
if (title_bar_style_ != TitleBarStyle::kNormal)
// |hidden| is the only non-default titleBarStyle valid on Windows and Linux.
if (title_bar_style_ == TitleBarStyle::kHidden)
set_has_frame(false);
#if BUILDFLAG(IS_WIN)
// If the taskbar is re-created after we start up, we have to rebuild all of
// our buttons.
taskbar_created_message_ = RegisterWindowMessage(TEXT("TaskbarCreated"));
@ -1704,11 +1708,15 @@ NativeWindowViews::CreateNonClientFrameView(views::Widget* widget) {
if (has_frame() && !has_client_frame()) {
return std::make_unique<NativeFrameView>(this, widget);
} else {
auto frame_view = has_frame() && has_client_frame()
? std::make_unique<ClientFrameViewLinux>()
: std::make_unique<FramelessView>();
frame_view->Init(this, widget);
return frame_view;
if (has_frame() && has_client_frame()) {
auto frame_view = std::make_unique<ClientFrameViewLinux>();
frame_view->Init(this, widget);
return frame_view;
} else {
auto frame_view = std::make_unique<OpaqueFrameView>();
frame_view->Init(this, widget);
return frame_view;
}
}
#endif
}

18
shell/browser/native_window_views.h
View file

@ -167,13 +167,9 @@ class NativeWindowViews : public NativeWindow,
#if BUILDFLAG(IS_WIN)
TaskbarHost& taskbar_host() { return taskbar_host_; }
void UpdateThickFrame();
#endif
#if BUILDFLAG(IS_WIN)
bool IsWindowControlsOverlayEnabled() const {
return (title_bar_style_ == NativeWindowViews::TitleBarStyle::kHidden) &&
titlebar_overlay_;
}
SkColor overlay_button_color() const { return overlay_button_color_; }
void set_overlay_button_color(SkColor color) {
overlay_button_color_ = color;
@ -183,9 +179,6 @@ class NativeWindowViews : public NativeWindow,
overlay_symbol_color_ = color;
}
void UpdateThickFrame();
#endif
private:
// views::WidgetObserver:
void OnWidgetActivationChanged(views::Widget* widget, bool active) override;
@ -263,6 +256,10 @@ class NativeWindowViews : public NativeWindow,
std::unique_ptr<EventDisabler> event_disabler_;
#endif
// The color to use as the theme and symbol colors respectively for WCO.
SkColor overlay_button_color_ = SkColor();
SkColor overlay_symbol_color_ = SkColor();
#if BUILDFLAG(IS_WIN)
ui::WindowShowState last_window_state_;
@ -306,11 +303,6 @@ class NativeWindowViews : public NativeWindow,
std::optional<gfx::Rect> pending_bounds_change_;
// The color to use as the theme and symbol colors respectively for Window
// Controls Overlay if enabled on Windows.
SkColor overlay_button_color_;
SkColor overlay_symbol_color_;
// The message ID of the "TaskbarCreated" message, sent to us when we need to
// reset our thumbar buttons.
UINT taskbar_created_message_ = 0;

20
shell/browser/ui/views/caption_button_placeholder_container.cc Normal file
View file

@ -0,0 +1,20 @@
// Copyright 2024 Microsoft GmbH.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "shell/browser/ui/views/caption_button_placeholder_container.h"
#include "ui/base/metadata/metadata_impl_macros.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/scoped_canvas.h"
#include "ui/views/view.h"
CaptionButtonPlaceholderContainer::CaptionButtonPlaceholderContainer() {
SetPaintToLayer();
}
CaptionButtonPlaceholderContainer::~CaptionButtonPlaceholderContainer() =
default;
BEGIN_METADATA(CaptionButtonPlaceholderContainer)
END_METADATA

26
shell/browser/ui/views/caption_button_placeholder_container.h Normal file
View file

@ -0,0 +1,26 @@
// Copyright 2024 Microsoft GmbH.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ELECTRON_SHELL_BROWSER_UI_VIEWS_CAPTION_BUTTON_PLACEHOLDER_CONTAINER_H_
#define ELECTRON_SHELL_BROWSER_UI_VIEWS_CAPTION_BUTTON_PLACEHOLDER_CONTAINER_H_
#include "ui/base/metadata/metadata_header_macros.h"
#include "ui/views/view.h"
// A placeholder container for control buttons with window controls
// overlay display override. Does not interact with the buttons. It is just
// used to indicate that this is non-client-area.
class CaptionButtonPlaceholderContainer : public views::View {
METADATA_HEADER(CaptionButtonPlaceholderContainer, views::View)
public:
CaptionButtonPlaceholderContainer();
CaptionButtonPlaceholderContainer(const CaptionButtonPlaceholderContainer&) =
delete;
CaptionButtonPlaceholderContainer& operator=(
const CaptionButtonPlaceholderContainer&) = delete;
~CaptionButtonPlaceholderContainer() override;
};
#endif // ELECTRON_SHELL_BROWSER_UI_VIEWS_CAPTION_BUTTON_PLACEHOLDER_CONTAINER_H_

2
shell/browser/ui/views/frameless_view.cc
View file

@ -95,6 +95,8 @@ void FramelessView::ResetWindowControls() {}
void FramelessView::UpdateWindowIcon() {}
void FramelessView::InvalidateCaptionButtons() {}
void FramelessView::UpdateWindowTitle() {}
void FramelessView::SizeConstraintsChanged() {}

7
shell/browser/ui/views/frameless_view.h
View file

@ -33,6 +33,13 @@ class FramelessView : public views::NonClientFrameView {
// Returns whether the |point| is on frameless window's resizing border.
virtual int ResizingBorderHitTest(const gfx::Point& point);
// Tells the NonClientView to invalidate caption buttons
// and forces a re-layout and re-paint.
virtual void InvalidateCaptionButtons();
NativeWindowViews* window() const { return window_; }
views::Widget* frame() const { return frame_; }
protected:
// Helper function for subclasses to implement ResizingBorderHitTest with a
// custom resize inset.

552
shell/browser/ui/views/opaque_frame_view.cc Normal file
View file

@ -0,0 +1,552 @@
// Copyright (c) 2024 Microsoft GmbH.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "shell/browser/ui/views/opaque_frame_view.h"
#include "base/containers/adapters.h"
#include "base/i18n/rtl.h"
#include "chrome/grit/generated_resources.h"
#include "components/strings/grit/components_strings.h"
#include "shell/browser/native_window_views.h"
#include "shell/browser/ui/inspectable_web_contents_view.h"
#include "shell/browser/ui/views/caption_button_placeholder_container.h"
#include "ui/aura/window.h"
#include "ui/base/hit_test.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/metadata/metadata_impl_macros.h"
#include "ui/compositor/layer.h"
#include "ui/linux/linux_ui.h"
#include "ui/views/background.h"
#include "ui/views/widget/widget.h"
#include "ui/views/widget/widget_delegate.h"
#include "ui/views/window/frame_caption_button.h"
#include "ui/views/window/vector_icons/vector_icons.h"
namespace electron {
namespace {
// These values should be the same as Chromium uses.
constexpr int kCaptionButtonHeight = 18;
bool HitTestCaptionButton(views::Button* button, const gfx::Point& point) {
return button && button->GetVisible() &&
button->GetMirroredBounds().Contains(point);
}
// The frame has a 2 px 3D edge along the top. This is overridable by
// subclasses, so RestoredFrameEdgeInsets() should be used instead of using this
// constant directly.
const int kTopFrameEdgeThickness = 2;
// The frame has a 1 px 3D edge along the side. This is overridable by
// subclasses, so RestoredFrameEdgeInsets() should be used instead of using this
// constant directly.
const int kSideFrameEdgeThickness = 1;
// The minimum vertical padding between the bottom of the caption buttons and
// the top of the content shadow.
const int kCaptionButtonBottomPadding = 3;
} // namespace
// The content edge images have a shadow built into them.
const int OpaqueFrameView::kContentEdgeShadowThickness = 2;
OpaqueFrameView::OpaqueFrameView() = default;
OpaqueFrameView::~OpaqueFrameView() = default;
void OpaqueFrameView::Init(NativeWindowViews* window, views::Widget* frame) {
FramelessView::Init(window, frame);
if (!window->IsWindowControlsOverlayEnabled())
return;
caption_button_placeholder_container_ =
AddChildView(std::make_unique<CaptionButtonPlaceholderContainer>());
minimize_button_ = CreateButton(
VIEW_ID_MINIMIZE_BUTTON, IDS_ACCNAME_MINIMIZE,
views::CAPTION_BUTTON_ICON_MINIMIZE, HTMINBUTTON,
views::kWindowControlMinimizeIcon,
base::BindRepeating(&views::Widget::Minimize, base::Unretained(frame)));
maximize_button_ = CreateButton(
VIEW_ID_MAXIMIZE_BUTTON, IDS_ACCNAME_MAXIMIZE,
views::CAPTION_BUTTON_ICON_MAXIMIZE_RESTORE, HTMAXBUTTON,
views::kWindowControlMaximizeIcon,
base::BindRepeating(&views::Widget::Maximize, base::Unretained(frame)));
restore_button_ = CreateButton(
VIEW_ID_RESTORE_BUTTON, IDS_ACCNAME_RESTORE,
views::CAPTION_BUTTON_ICON_MAXIMIZE_RESTORE, HTMAXBUTTON,
views::kWindowControlRestoreIcon,
base::BindRepeating(&views::Widget::Restore, base::Unretained(frame)));
close_button_ = CreateButton(
VIEW_ID_CLOSE_BUTTON, IDS_ACCNAME_CLOSE, views::CAPTION_BUTTON_ICON_CLOSE,
HTMAXBUTTON, views::kWindowControlCloseIcon,
base::BindRepeating(&views::Widget::CloseWithReason,
base::Unretained(frame),
views::Widget::ClosedReason::kCloseButtonClicked));
// Unretained() is safe because the subscription is saved into an instance
// member and thus will be cancelled upon the instance's destruction.
paint_as_active_changed_subscription_ =
frame->RegisterPaintAsActiveChangedCallback(base::BindRepeating(
&OpaqueFrameView::PaintAsActiveChanged, base::Unretained(this)));
}
int OpaqueFrameView::ResizingBorderHitTest(const gfx::Point& point) {
return FramelessView::ResizingBorderHitTest(point);
}
void OpaqueFrameView::InvalidateCaptionButtons() {
UpdateCaptionButtonPlaceholderContainerBackground();
UpdateFrameCaptionButtons();
LayoutWindowControlsOverlay();
InvalidateLayout();
}
gfx::Rect OpaqueFrameView::GetBoundsForClientView() const {
if (window()->IsWindowControlsOverlayEnabled()) {
auto border_thickness = FrameBorderInsets(false);
int top_height = border_thickness.top();
return gfx::Rect(
border_thickness.left(), top_height,
std::max(0, width() - border_thickness.width()),
std::max(0, height() - top_height - border_thickness.bottom()));
}
return FramelessView::GetBoundsForClientView();
}
gfx::Rect OpaqueFrameView::GetWindowBoundsForClientBounds(
const gfx::Rect& client_bounds) const {
if (window()->IsWindowControlsOverlayEnabled()) {
int top_height = NonClientTopHeight(false);
auto border_insets = FrameBorderInsets(false);
return gfx::Rect(
std::max(0, client_bounds.x() - border_insets.left()),
std::max(0, client_bounds.y() - top_height),
client_bounds.width() + border_insets.width(),
client_bounds.height() + top_height + border_insets.bottom());
}
return FramelessView::GetWindowBoundsForClientBounds(client_bounds);
}
int OpaqueFrameView::NonClientHitTest(const gfx::Point& point) {
if (window()->IsWindowControlsOverlayEnabled()) {
if (HitTestCaptionButton(close_button_, point))
return HTCLOSE;
if (HitTestCaptionButton(restore_button_, point))
return HTMAXBUTTON;
if (HitTestCaptionButton(maximize_button_, point))
return HTMAXBUTTON;
if (HitTestCaptionButton(minimize_button_, point))
return HTMINBUTTON;
if (caption_button_placeholder_container_->GetMirroredBounds().Contains(
point)) {
return HTCAPTION;
}
}
return FramelessView::NonClientHitTest(point);
}
void OpaqueFrameView::ResetWindowControls() {
NonClientFrameView::ResetWindowControls();
if (restore_button_)
restore_button_->SetState(views::Button::STATE_NORMAL);
if (minimize_button_)
minimize_button_->SetState(views::Button::STATE_NORMAL);
if (maximize_button_)
maximize_button_->SetState(views::Button::STATE_NORMAL);
// The close button isn't affected by this constraint.
}
views::View* OpaqueFrameView::TargetForRect(views::View* root,
const gfx::Rect& rect) {
return views::NonClientFrameView::TargetForRect(root, rect);
}
void OpaqueFrameView::Layout(PassKey) {
LayoutSuperclass<FramelessView>(this);
if (!window()->IsWindowControlsOverlayEnabled())
return;
// Reset all our data so that everything is invisible.
TopAreaPadding top_area_padding = GetTopAreaPadding();
available_space_leading_x_ = top_area_padding.leading;
available_space_trailing_x_ = width() - top_area_padding.trailing;
minimum_size_for_buttons_ =
available_space_leading_x_ + width() - available_space_trailing_x_;
placed_leading_button_ = false;
placed_trailing_button_ = false;
LayoutWindowControls();
int height = NonClientTopHeight(false);
auto insets = FrameBorderInsets(false);
int container_x = placed_trailing_button_ ? available_space_trailing_x_ : 0;
caption_button_placeholder_container_->SetBounds(
container_x, insets.top(), minimum_size_for_buttons_ - insets.width(),
height - insets.top());
LayoutWindowControlsOverlay();
}
void OpaqueFrameView::OnPaint(gfx::Canvas* canvas) {
if (!window()->IsWindowControlsOverlayEnabled())
return;
if (frame()->IsFullscreen())
return;
UpdateFrameCaptionButtons();
}
void OpaqueFrameView::PaintAsActiveChanged() {
if (!window()->IsWindowControlsOverlayEnabled())
return;
UpdateCaptionButtonPlaceholderContainerBackground();
UpdateFrameCaptionButtons();
}
void OpaqueFrameView::UpdateFrameCaptionButtons() {
const bool active = ShouldPaintAsActive();
const SkColor symbol_color = window()->overlay_symbol_color();
const SkColor background_color = window()->overlay_button_color();
SkColor frame_color =
background_color == SkColor() ? GetFrameColor() : background_color;
for (views::Button* button :
{minimize_button_, maximize_button_, restore_button_, close_button_}) {
DCHECK_EQ(std::string(views::FrameCaptionButton::kViewClassName),
button->GetClassName());
views::FrameCaptionButton* frame_caption_button =
static_cast<views::FrameCaptionButton*>(button);
frame_caption_button->SetPaintAsActive(active);
frame_caption_button->SetButtonColor(symbol_color);
frame_caption_button->SetBackgroundColor(frame_color);
}
}
void OpaqueFrameView::UpdateCaptionButtonPlaceholderContainerBackground() {
if (caption_button_placeholder_container_) {
const SkColor obc = window()->overlay_button_color();
const SkColor bg_color = obc == SkColor() ? GetFrameColor() : obc;
caption_button_placeholder_container_->SetBackground(
views::CreateSolidBackground(bg_color));
}
}
void OpaqueFrameView::LayoutWindowControls() {
// Keep a list of all buttons that we don't show.
std::vector<views::FrameButton> buttons_not_shown;
buttons_not_shown.push_back(views::FrameButton::kMaximize);
buttons_not_shown.push_back(views::FrameButton::kMinimize);
buttons_not_shown.push_back(views::FrameButton::kClose);
for (const auto& button : leading_buttons_) {
ConfigureButton(button, ALIGN_LEADING);
std::erase(buttons_not_shown, button);
}
for (const auto& button : base::Reversed(trailing_buttons_)) {
ConfigureButton(button, ALIGN_TRAILING);
std::erase(buttons_not_shown, button);
}
for (const auto& button_id : buttons_not_shown)
HideButton(button_id);
}
void OpaqueFrameView::LayoutWindowControlsOverlay() {
int overlay_height = window()->titlebar_overlay_height();
if (overlay_height == 0) {
// Accounting for the 1 pixel margin at the top of the button container
overlay_height =
window()->IsMaximized()
? caption_button_placeholder_container_->size().height()
: caption_button_placeholder_container_->size().height() + 1;
}
int overlay_width = caption_button_placeholder_container_->size().width();
int bounding_rect_width = width() - overlay_width;
auto bounding_rect =
GetMirroredRect(gfx::Rect(0, 0, bounding_rect_width, overlay_height));
window()->SetWindowControlsOverlayRect(bounding_rect);
window()->NotifyLayoutWindowControlsOverlay();
}
views::Button* OpaqueFrameView::CreateButton(
ViewID view_id,
int accessibility_string_id,
views::CaptionButtonIcon icon_type,
int ht_component,
const gfx::VectorIcon& icon_image,
views::Button::PressedCallback callback) {
views::FrameCaptionButton* button = new views::FrameCaptionButton(
views::Button::PressedCallback(), icon_type, ht_component);
button->SetImage(button->GetIcon(), views::FrameCaptionButton::Animate::kNo,
icon_image);
button->SetFocusBehavior(FocusBehavior::ACCESSIBLE_ONLY);
button->SetCallback(std::move(callback));
button->SetAccessibleName(l10n_util::GetStringUTF16(accessibility_string_id));
button->SetID(view_id);
AddChildView(button);
button->SetPaintToLayer();
button->layer()->SetFillsBoundsOpaquely(false);
return button;
}
gfx::Insets OpaqueFrameView::FrameBorderInsets(bool restored) const {
return !restored && IsFrameCondensed() ? gfx::Insets()
: RestoredFrameBorderInsets();
}
int OpaqueFrameView::FrameTopBorderThickness(bool restored) const {
int thickness = FrameBorderInsets(restored).top();
if ((restored || !IsFrameCondensed()) && thickness > 0)
thickness += NonClientExtraTopThickness();
return thickness;
}
OpaqueFrameView::TopAreaPadding OpaqueFrameView::GetTopAreaPadding(
bool has_leading_buttons,
bool has_trailing_buttons) const {
const auto padding = FrameBorderInsets(false);
return TopAreaPadding{padding.left(), padding.right()};
}
bool OpaqueFrameView::IsFrameCondensed() const {
return frame()->IsMaximized() || frame()->IsFullscreen();
}
gfx::Insets OpaqueFrameView::RestoredFrameBorderInsets() const {
return gfx::Insets();
}
gfx::Insets OpaqueFrameView::RestoredFrameEdgeInsets() const {
return gfx::Insets::TLBR(kTopFrameEdgeThickness, kSideFrameEdgeThickness,
kSideFrameEdgeThickness, kSideFrameEdgeThickness);
}
int OpaqueFrameView::NonClientExtraTopThickness() const {
return kNonClientExtraTopThickness;
}
int OpaqueFrameView::NonClientTopHeight(bool restored) const {
// Adding 2px of vertical padding puts at least 1 px of space on the top and
// bottom of the element.
constexpr int kVerticalPadding = 2;
const int icon_height = GetIconSize() + kVerticalPadding;
const int caption_button_height = DefaultCaptionButtonY(restored) +
kCaptionButtonHeight +
kCaptionButtonBottomPadding;
int custom_height = window()->titlebar_overlay_height();
return custom_height ? custom_height
: std::max(icon_height, caption_button_height) +
kContentEdgeShadowThickness;
}
int OpaqueFrameView::CaptionButtonY(views::FrameButton button_id,
bool restored) const {
return DefaultCaptionButtonY(restored);
}
int OpaqueFrameView::DefaultCaptionButtonY(bool restored) const {
// Maximized buttons start at window top, since the window has no border. This
// offset is for the image (the actual clickable bounds extend all the way to
// the top to take Fitts' Law into account).
const bool start_at_top_of_frame = !restored && IsFrameCondensed();
return start_at_top_of_frame
? FrameBorderInsets(false).top()
: views::NonClientFrameView::kFrameShadowThickness;
}
gfx::Insets OpaqueFrameView::FrameEdgeInsets(bool restored) const {
return RestoredFrameEdgeInsets();
}
int OpaqueFrameView::GetIconSize() const {
// The icon never shrinks below 16 px on a side.
const int kIconMinimumSize = 16;
return std::max(gfx::FontList().GetHeight(), kIconMinimumSize);
}
OpaqueFrameView::TopAreaPadding OpaqueFrameView::GetTopAreaPadding() const {
return GetTopAreaPadding(!leading_buttons_.empty(),
!trailing_buttons_.empty());
}
SkColor OpaqueFrameView::GetFrameColor() const {
return GetColorProvider()->GetColor(
ShouldPaintAsActive() ? ui::kColorFrameActive : ui::kColorFrameInactive);
}
void OpaqueFrameView::ConfigureButton(views::FrameButton button_id,
ButtonAlignment alignment) {
switch (button_id) {
case views::FrameButton::kMinimize: {
bool can_minimize = true; // delegate_->CanMinimize();
if (can_minimize) {
minimize_button_->SetVisible(true);
SetBoundsForButton(button_id, minimize_button_, alignment);
} else {
HideButton(button_id);
}
break;
}
case views::FrameButton::kMaximize: {
bool can_maximize = true; // delegate_->CanMaximize();
if (can_maximize) {
// When the window is restored, we show a maximized button; otherwise,
// we show a restore button.
bool is_restored = !window()->IsMaximized() && !window()->IsMinimized();
views::Button* invisible_button =
is_restored ? restore_button_ : maximize_button_;
invisible_button->SetVisible(false);
views::Button* visible_button =
is_restored ? maximize_button_ : restore_button_;
visible_button->SetVisible(true);
SetBoundsForButton(button_id, visible_button, alignment);
} else {
HideButton(button_id);
}
break;
}
case views::FrameButton::kClose: {
close_button_->SetVisible(true);
SetBoundsForButton(button_id, close_button_, alignment);
break;
}
}
}
void OpaqueFrameView::HideButton(views::FrameButton button_id) {
switch (button_id) {
case views::FrameButton::kMinimize:
minimize_button_->SetVisible(false);
break;
case views::FrameButton::kMaximize:
restore_button_->SetVisible(false);
maximize_button_->SetVisible(false);
break;
case views::FrameButton::kClose:
close_button_->SetVisible(false);
break;
}
}
void OpaqueFrameView::SetBoundsForButton(views::FrameButton button_id,
views::Button* button,
ButtonAlignment alignment) {
const int caption_y = CaptionButtonY(button_id, false);
// There should always be the same number of non-shadow pixels visible to the
// side of the caption buttons. In maximized mode we extend buttons to the
// screen top and the rightmost button to the screen right (or leftmost button
// to the screen left, for left-aligned buttons) to obey Fitts' Law.
const bool is_frame_condensed = IsFrameCondensed();
const int button_width = views::GetCaptionButtonWidth();
gfx::Size button_size = button->GetPreferredSize();
DCHECK_EQ(std::string(views::FrameCaptionButton::kViewClassName),
button->GetClassName());
const int caption_button_center_size =
button_width - 2 * views::kCaptionButtonInkDropDefaultCornerRadius;
const int height = GetTopAreaHeight() - FrameEdgeInsets(false).top();
const int corner_radius =
std::clamp((height - caption_button_center_size) / 2, 0,
views::kCaptionButtonInkDropDefaultCornerRadius);
button_size = gfx::Size(button_width, height);
button->SetPreferredSize(button_size);
static_cast<views::FrameCaptionButton*>(button)->SetInkDropCornerRadius(
corner_radius);
TopAreaPadding top_area_padding = GetTopAreaPadding();
switch (alignment) {
case ALIGN_LEADING: {
int extra_width = top_area_padding.leading;
int button_start_spacing =
GetWindowCaptionSpacing(button_id, true, !placed_leading_button_);
available_space_leading_x_ += button_start_spacing;
minimum_size_for_buttons_ += button_start_spacing;
bool top_spacing_clickable = is_frame_condensed;
bool start_spacing_clickable =
is_frame_condensed && !placed_leading_button_;
button->SetBounds(
available_space_leading_x_ - (start_spacing_clickable
? button_start_spacing + extra_width
: 0),
top_spacing_clickable ? 0 : caption_y,
button_size.width() + (start_spacing_clickable
? button_start_spacing + extra_width
: 0),
button_size.height() + (top_spacing_clickable ? caption_y : 0));
int button_end_spacing =
GetWindowCaptionSpacing(button_id, false, !placed_leading_button_);
available_space_leading_x_ += button_size.width() + button_end_spacing;
minimum_size_for_buttons_ += button_size.width() + button_end_spacing;
placed_leading_button_ = true;
break;
}
case ALIGN_TRAILING: {
int extra_width = top_area_padding.trailing;
int button_start_spacing =
GetWindowCaptionSpacing(button_id, true, !placed_trailing_button_);
available_space_trailing_x_ -= button_start_spacing;
minimum_size_for_buttons_ += button_start_spacing;
bool top_spacing_clickable = is_frame_condensed;
bool start_spacing_clickable =
is_frame_condensed && !placed_trailing_button_;
button->SetBounds(
available_space_trailing_x_ - button_size.width(),
top_spacing_clickable ? 0 : caption_y,
button_size.width() + (start_spacing_clickable
? button_start_spacing + extra_width
: 0),
button_size.height() + (top_spacing_clickable ? caption_y : 0));
int button_end_spacing =
GetWindowCaptionSpacing(button_id, false, !placed_trailing_button_);
available_space_trailing_x_ -= button_size.width() + button_end_spacing;
minimum_size_for_buttons_ += button_size.width() + button_end_spacing;
placed_trailing_button_ = true;
break;
}
}
}
int OpaqueFrameView::GetTopAreaHeight() const {
int top_height = NonClientTopHeight(false);
return top_height;
}
int OpaqueFrameView::GetWindowCaptionSpacing(views::FrameButton button_id,
bool leading_spacing,
bool is_leading_button) const {
return 0;
}
BEGIN_METADATA(OpaqueFrameView)
END_METADATA
} // namespace electron

205
shell/browser/ui/views/opaque_frame_view.h Normal file
View file

@ -0,0 +1,205 @@
// Copyright 2024 Microsoft GmbH.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ELECTRON_SHELL_BROWSER_UI_VIEWS_OPAQUE_FRAME_VIEW_H_
#define ELECTRON_SHELL_BROWSER_UI_VIEWS_OPAQUE_FRAME_VIEW_H_
#include <memory>
#include "base/memory/raw_ptr.h"
#include "base/scoped_observation.h"
#include "chrome/browser/ui/view_ids.h"
#include "shell/browser/ui/views/frameless_view.h"
#include "ui/base/metadata/metadata_header_macros.h"
#include "ui/gfx/font_list.h"
#include "ui/linux/nav_button_provider.h"
#include "ui/linux/window_button_order_observer.h"
#include "ui/views/controls/button/button.h"
#include "ui/views/window/caption_button_types.h"
#include "ui/views/window/frame_buttons.h"
#include "ui/views/window/non_client_view.h"
class CaptionButtonPlaceholderContainer;
namespace electron {
class OpaqueFrameView : public FramelessView {
METADATA_HEADER(OpaqueFrameView, FramelessView)
public:
// Constants used by OpaqueBrowserFrameView as well.
static const int kContentEdgeShadowThickness;
static constexpr int kNonClientExtraTopThickness = 1;
OpaqueFrameView();
~OpaqueFrameView() override;
// FramelessView:
void Init(NativeWindowViews* window, views::Widget* frame) override;
int ResizingBorderHitTest(const gfx::Point& point) override;
void InvalidateCaptionButtons() override;
// views::NonClientFrameView:
gfx::Rect GetBoundsForClientView() const override;
gfx::Rect GetWindowBoundsForClientBounds(
const gfx::Rect& client_bounds) const override;
int NonClientHitTest(const gfx::Point& point) override;
void ResetWindowControls() override;
views::View* TargetForRect(views::View* root, const gfx::Rect& rect) override;
// views::View:
void Layout(PassKey) override;
void OnPaint(gfx::Canvas* canvas) override;
private:
enum ButtonAlignment { ALIGN_LEADING, ALIGN_TRAILING };
struct TopAreaPadding {
int leading;
int trailing;
};
void PaintAsActiveChanged();
void UpdateCaptionButtonPlaceholderContainerBackground();
void UpdateFrameCaptionButtons();
void LayoutWindowControls();
void LayoutWindowControlsOverlay();
// Creates and returns an ImageButton with |this| as its listener.
// Memory is owned by the caller.
views::Button* CreateButton(ViewID view_id,
int accessibility_string_id,
views::CaptionButtonIcon icon_type,
int ht_component,
const gfx::VectorIcon& icon_image,
views::Button::PressedCallback callback);
/** Layout-Related Utility Functions **/
// Returns the insets from the native window edge to the client view.
// This does not include any client edge. If |restored| is true, this
// is calculated as if the window was restored, regardless of its
// current node_data.
gfx::Insets FrameBorderInsets(bool restored) const;
// Returns the thickness of the border that makes up the window frame edge
// along the top of the frame. If |restored| is true, this acts as if the
// window is restored regardless of the actual mode.
int FrameTopBorderThickness(bool restored) const;
// Returns the spacing between the edge of the browser window and the first
// frame buttons.
TopAreaPadding GetTopAreaPadding(bool has_leading_buttons,
bool has_trailing_buttons) const;
// Determines whether the top frame is condensed vertically, as when the
// window is maximized. If true, the top frame is just the height of a tab,
// rather than having extra vertical space above the tabs.
bool IsFrameCondensed() const;
// The insets from the native window edge to the client view when the window
// is restored. This goes all the way to the web contents on the left, right,
// and bottom edges.
gfx::Insets RestoredFrameBorderInsets() const;
// The insets from the native window edge to the flat portion of the
// window border. That is, this function returns the "3D portion" of the
// border when the window is restored. The returned insets will not be larger
// than RestoredFrameBorderInsets().
gfx::Insets RestoredFrameEdgeInsets() const;
// Additional vertical padding between tabs and the top edge of the window
// when the window is restored.
int NonClientExtraTopThickness() const;
// Returns the height of the entire nonclient top border, from the edge of the
// window to the top of the tabs. If |restored| is true, this is calculated as
// if the window was restored, regardless of its current state.
int NonClientTopHeight(bool restored) const;
// Returns the y-coordinate of button |button_id|. If |restored| is true,
// acts as if the window is restored regardless of the real mode.
int CaptionButtonY(views::FrameButton button_id, bool restored) const;
// Returns the y-coordinate of the caption button when native frame buttons
// are disabled. If |restored| is true, acts as if the window is restored
// regardless of the real mode.
int DefaultCaptionButtonY(bool restored) const;
// Returns the insets from the native window edge to the flat portion of the
// window border. That is, this function returns the "3D portion" of the
// border. If |restored| is true, acts as if the window is restored
// regardless of the real mode.
gfx::Insets FrameEdgeInsets(bool restored) const;
// Returns the size of the window icon. This can be platform dependent
// because of differences in fonts.
int GetIconSize() const;
// Returns the spacing between the edge of the browser window and the first
// frame buttons.
TopAreaPadding GetTopAreaPadding() const;
// Returns the color of the frame.
SkColor GetFrameColor() const;
// Initializes the button with |button_id| to be aligned according to
// |alignment|.
void ConfigureButton(views::FrameButton button_id, ButtonAlignment alignment);
// Sets the visibility of all buttons associated with |button_id| to false.
void HideButton(views::FrameButton button_id);
// Adds a window caption button to either the leading or trailing side.
void SetBoundsForButton(views::FrameButton button_id,
views::Button* button,
ButtonAlignment alignment);
// Computes the height of the top area of the frame.
int GetTopAreaHeight() const;
// Returns the margin around button |button_id|. If |leading_spacing| is
// true, returns the left margin (in RTL), otherwise returns the right margin
// (in RTL). Extra margin may be added if |is_leading_button| is true.
int GetWindowCaptionSpacing(views::FrameButton button_id,
bool leading_spacing,
bool is_leading_button) const;
// Window controls.
raw_ptr<views::Button> minimize_button_;
raw_ptr<views::Button> maximize_button_;
raw_ptr<views::Button> restore_button_;
raw_ptr<views::Button> close_button_;
// The leading and trailing x positions of the empty space available for
// laying out titlebar elements.
int available_space_leading_x_ = 0;
int available_space_trailing_x_ = 0;
// Whether any of the window control buttons were packed on the leading or
// trailing sides. This state is only valid while layout is being performed.
bool placed_leading_button_ = false;
bool placed_trailing_button_ = false;
// The size of the window buttons. This does not count labels or other
// elements that should be counted in a minimal frame.
int minimum_size_for_buttons_ = 0;
std::vector<views::FrameButton> leading_buttons_;
std::vector<views::FrameButton> trailing_buttons_{
views::FrameButton::kMinimize, views::FrameButton::kMaximize,
views::FrameButton::kClose};
base::CallbackListSubscription paint_as_active_changed_subscription_;
// PlaceholderContainer beneath the controls button for WCO.
raw_ptr<CaptionButtonPlaceholderContainer>
caption_button_placeholder_container_;
};
} // namespace electron
#endif // ELECTRON_SHELL_BROWSER_UI_VIEWS_OPAQUE_FRAME_VIEW_H_

21
shell/browser/ui/views/win_frame_view.cc
View file

@ -37,8 +37,6 @@ void WinFrameView::Init(NativeWindowViews* window, views::Widget* frame) {
if (window->IsWindowControlsOverlayEnabled()) {
caption_button_container_ =
AddChildView(std::make_unique<WinCaptionButtonContainer>(this));
} else {
caption_button_container_ = nullptr;
}
}
@ -82,24 +80,23 @@ views::View* WinFrameView::TargetForRect(views::View* root,
// Custom system titlebar returns non HTCLIENT value, however event should
// be handled by the view, not by the system, because there are no system
// buttons underneath.
if (!ShouldCustomDrawSystemTitlebar()) {
if (!window()->IsWindowControlsOverlayEnabled())
return this;
}
auto local_point = rect.origin();
ConvertPointToTarget(parent(), caption_button_container_, &local_point);
if (!caption_button_container_->HitTestPoint(local_point)) {
if (!caption_button_container_->HitTestPoint(local_point))
return this;
}
}
return NonClientFrameView::TargetForRect(root, rect);
}
int WinFrameView::NonClientHitTest(const gfx::Point& point) {
if (window_->has_frame())
if (window()->has_frame())
return frame_->client_view()->NonClientHitTest(point);
if (ShouldCustomDrawSystemTitlebar()) {
if (window()->IsWindowControlsOverlayEnabled()) {
// See if the point is within any of the window controls.
if (caption_button_container_) {
gfx::Point local_point = point;
@ -168,10 +165,6 @@ bool WinFrameView::IsMaximized() const {
return frame()->IsMaximized();
}
bool WinFrameView::ShouldCustomDrawSystemTitlebar() const {
return window()->IsWindowControlsOverlayEnabled();
}
void WinFrameView::Layout(PassKey) {
LayoutCaptionButtons();
if (window()->IsWindowControlsOverlayEnabled()) {
@ -197,7 +190,7 @@ int WinFrameView::FrameTopBorderThicknessPx(bool restored) const {
// See comments in BrowserDesktopWindowTreeHostWin::GetClientAreaInsets().
const bool needs_no_border =
(ShouldCustomDrawSystemTitlebar() && frame()->IsMaximized()) ||
(window()->IsWindowControlsOverlayEnabled() && frame()->IsMaximized()) ||
frame()->IsFullscreen();
if (needs_no_border && !restored)
return 0;
@ -245,7 +238,7 @@ void WinFrameView::LayoutCaptionButtons() {
return;
// Non-custom system titlebar already contains caption buttons.
if (!ShouldCustomDrawSystemTitlebar()) {
if (!window()->IsWindowControlsOverlayEnabled()) {
caption_button_container_->SetVisible(false);
return;
}

10
shell/browser/ui/views/win_frame_view.h
View file

@ -26,6 +26,7 @@ class WinFrameView : public FramelessView {
~WinFrameView() override;
void Init(NativeWindowViews* window, views::Widget* frame) override;
void InvalidateCaptionButtons() override;
// Alpha to use for features in the titlebar (the window title and caption
// buttons) when the window is inactive. They are opaque when active.
@ -33,24 +34,17 @@ class WinFrameView : public FramelessView {
SkColor GetReadableFeatureColor(SkColor background_color);
// Tells the NonClientView to invalidate the WinFrameView's caption buttons.
void InvalidateCaptionButtons();
// views::NonClientFrameView:
gfx::Rect GetWindowBoundsForClientBounds(
const gfx::Rect& client_bounds) const override;
int NonClientHitTest(const gfx::Point& point) override;
NativeWindowViews* window() const { return window_; }
views::Widget* frame() const { return frame_; }
WinCaptionButtonContainer* caption_button_container() {
return caption_button_container_;
}
bool IsMaximized() const;
bool ShouldCustomDrawSystemTitlebar() const;
// Visual height of the titlebar when the window is maximized (i.e. excluding
// the area above the top of the screen).
int TitlebarMaximizedVisualHeight() const;
@ -89,7 +83,7 @@ class WinFrameView : public FramelessView {
// The container holding the caption buttons (minimize, maximize, close, etc.)
// May be null if the caption button container is destroyed before the frame
// view. Always check for validity before using!
raw_ptr<WinCaptionButtonContainer> caption_button_container_;
raw_ptr<WinCaptionButtonContainer> caption_button_container_ = nullptr;
};
} // namespace electron