aa719a4066
Closes https://github.com/electron/electron/issues/43714. Fixes an issue where the resizing border was not being handled correctly on Linux WCO caption buttons. This is now taken into account as a part of the NonClientHitTest.
556 lines
20 KiB
C++
556 lines
20 KiB
C++
// Copyright (c) 2024 Microsoft GmbH.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#include "shell/browser/ui/views/opaque_frame_view.h"
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#include "base/containers/adapters.h"
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#include "base/i18n/rtl.h"
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#include "chrome/grit/generated_resources.h"
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#include "components/strings/grit/components_strings.h"
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#include "shell/browser/native_window_views.h"
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#include "shell/browser/ui/views/caption_button_placeholder_container.h"
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#include "ui/base/hit_test.h"
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#include "ui/base/l10n/l10n_util.h"
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#include "ui/base/metadata/metadata_impl_macros.h"
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#include "ui/compositor/layer.h"
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#include "ui/gfx/font_list.h"
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#include "ui/linux/linux_ui.h"
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#include "ui/views/background.h"
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#include "ui/views/widget/widget.h"
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#include "ui/views/widget/widget_delegate.h"
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#include "ui/views/window/frame_caption_button.h"
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#include "ui/views/window/vector_icons/vector_icons.h"
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namespace electron {
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namespace {
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// These values should be the same as Chromium uses.
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constexpr int kCaptionButtonHeight = 18;
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bool HitTestCaptionButton(views::Button* button, const gfx::Point& point) {
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return button && button->GetVisible() &&
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button->GetMirroredBounds().Contains(point);
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}
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// The frame has a 2 px 3D edge along the top. This is overridable by
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// subclasses, so RestoredFrameEdgeInsets() should be used instead of using this
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// constant directly.
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const int kTopFrameEdgeThickness = 2;
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// The frame has a 1 px 3D edge along the side. This is overridable by
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// subclasses, so RestoredFrameEdgeInsets() should be used instead of using this
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// constant directly.
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const int kSideFrameEdgeThickness = 1;
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// The minimum vertical padding between the bottom of the caption buttons and
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// the top of the content shadow.
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const int kCaptionButtonBottomPadding = 3;
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} // namespace
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// The content edge images have a shadow built into them.
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const int OpaqueFrameView::kContentEdgeShadowThickness = 2;
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OpaqueFrameView::OpaqueFrameView() = default;
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OpaqueFrameView::~OpaqueFrameView() = default;
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void OpaqueFrameView::Init(NativeWindowViews* window, views::Widget* frame) {
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FramelessView::Init(window, frame);
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if (!window->IsWindowControlsOverlayEnabled())
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return;
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caption_button_placeholder_container_ =
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AddChildView(std::make_unique<CaptionButtonPlaceholderContainer>());
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minimize_button_ = CreateButton(
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VIEW_ID_MINIMIZE_BUTTON, IDS_ACCNAME_MINIMIZE,
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views::CAPTION_BUTTON_ICON_MINIMIZE, HTMINBUTTON,
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views::kWindowControlMinimizeIcon,
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base::BindRepeating(&views::Widget::Minimize, base::Unretained(frame)));
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maximize_button_ = CreateButton(
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VIEW_ID_MAXIMIZE_BUTTON, IDS_ACCNAME_MAXIMIZE,
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views::CAPTION_BUTTON_ICON_MAXIMIZE_RESTORE, HTMAXBUTTON,
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views::kWindowControlMaximizeIcon,
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base::BindRepeating(&views::Widget::Maximize, base::Unretained(frame)));
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restore_button_ = CreateButton(
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VIEW_ID_RESTORE_BUTTON, IDS_ACCNAME_RESTORE,
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views::CAPTION_BUTTON_ICON_MAXIMIZE_RESTORE, HTMAXBUTTON,
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views::kWindowControlRestoreIcon,
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base::BindRepeating(&views::Widget::Restore, base::Unretained(frame)));
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close_button_ = CreateButton(
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VIEW_ID_CLOSE_BUTTON, IDS_ACCNAME_CLOSE, views::CAPTION_BUTTON_ICON_CLOSE,
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HTMAXBUTTON, views::kWindowControlCloseIcon,
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base::BindRepeating(&views::Widget::CloseWithReason,
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base::Unretained(frame),
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views::Widget::ClosedReason::kCloseButtonClicked));
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// Unretained() is safe because the subscription is saved into an instance
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// member and thus will be cancelled upon the instance's destruction.
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paint_as_active_changed_subscription_ =
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frame->RegisterPaintAsActiveChangedCallback(base::BindRepeating(
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&OpaqueFrameView::PaintAsActiveChanged, base::Unretained(this)));
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}
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int OpaqueFrameView::ResizingBorderHitTest(const gfx::Point& point) {
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return FramelessView::ResizingBorderHitTest(point);
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}
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void OpaqueFrameView::InvalidateCaptionButtons() {
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UpdateCaptionButtonPlaceholderContainerBackground();
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UpdateFrameCaptionButtons();
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LayoutWindowControlsOverlay();
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InvalidateLayout();
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}
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gfx::Rect OpaqueFrameView::GetBoundsForClientView() const {
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if (window()->IsWindowControlsOverlayEnabled()) {
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auto border_thickness = FrameBorderInsets(false);
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int top_height = border_thickness.top();
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return gfx::Rect(
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border_thickness.left(), top_height,
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std::max(0, width() - border_thickness.width()),
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std::max(0, height() - top_height - border_thickness.bottom()));
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}
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return FramelessView::GetBoundsForClientView();
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}
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gfx::Rect OpaqueFrameView::GetWindowBoundsForClientBounds(
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const gfx::Rect& client_bounds) const {
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if (window()->IsWindowControlsOverlayEnabled()) {
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int top_height = NonClientTopHeight(false);
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auto border_insets = FrameBorderInsets(false);
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return gfx::Rect(
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std::max(0, client_bounds.x() - border_insets.left()),
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std::max(0, client_bounds.y() - top_height),
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client_bounds.width() + border_insets.width(),
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client_bounds.height() + top_height + border_insets.bottom());
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}
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return FramelessView::GetWindowBoundsForClientBounds(client_bounds);
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}
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int OpaqueFrameView::NonClientHitTest(const gfx::Point& point) {
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if (window()->IsWindowControlsOverlayEnabled()) {
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// Ensure support for resizing frameless window with border drag.
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int frame_component = ResizingBorderHitTest(point);
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if (frame_component != HTNOWHERE)
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return frame_component;
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if (HitTestCaptionButton(close_button_, point))
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return HTCLOSE;
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if (HitTestCaptionButton(restore_button_, point))
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return HTMAXBUTTON;
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if (HitTestCaptionButton(maximize_button_, point))
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return HTMAXBUTTON;
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if (HitTestCaptionButton(minimize_button_, point))
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return HTMINBUTTON;
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if (caption_button_placeholder_container_->GetMirroredBounds().Contains(
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point)) {
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return HTCAPTION;
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}
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}
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return FramelessView::NonClientHitTest(point);
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}
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void OpaqueFrameView::ResetWindowControls() {
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NonClientFrameView::ResetWindowControls();
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if (restore_button_)
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restore_button_->SetState(views::Button::STATE_NORMAL);
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if (minimize_button_)
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minimize_button_->SetState(views::Button::STATE_NORMAL);
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if (maximize_button_)
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maximize_button_->SetState(views::Button::STATE_NORMAL);
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// The close button isn't affected by this constraint.
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}
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views::View* OpaqueFrameView::TargetForRect(views::View* root,
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const gfx::Rect& rect) {
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return views::NonClientFrameView::TargetForRect(root, rect);
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}
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void OpaqueFrameView::Layout(PassKey) {
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LayoutSuperclass<FramelessView>(this);
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if (!window()->IsWindowControlsOverlayEnabled())
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return;
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// Reset all our data so that everything is invisible.
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TopAreaPadding top_area_padding = GetTopAreaPadding();
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available_space_leading_x_ = top_area_padding.leading;
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available_space_trailing_x_ = width() - top_area_padding.trailing;
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minimum_size_for_buttons_ =
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available_space_leading_x_ + width() - available_space_trailing_x_;
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placed_leading_button_ = false;
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placed_trailing_button_ = false;
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LayoutWindowControls();
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int height = NonClientTopHeight(false);
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auto insets = FrameBorderInsets(false);
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int container_x = placed_trailing_button_ ? available_space_trailing_x_ : 0;
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caption_button_placeholder_container_->SetBounds(
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container_x, insets.top(), minimum_size_for_buttons_ - insets.width(),
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height - insets.top());
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LayoutWindowControlsOverlay();
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}
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void OpaqueFrameView::OnPaint(gfx::Canvas* canvas) {
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if (!window()->IsWindowControlsOverlayEnabled())
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return;
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if (frame()->IsFullscreen())
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return;
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UpdateFrameCaptionButtons();
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}
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void OpaqueFrameView::PaintAsActiveChanged() {
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if (!window()->IsWindowControlsOverlayEnabled())
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return;
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UpdateCaptionButtonPlaceholderContainerBackground();
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UpdateFrameCaptionButtons();
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}
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void OpaqueFrameView::UpdateFrameCaptionButtons() {
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const bool active = ShouldPaintAsActive();
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const SkColor symbol_color = window()->overlay_symbol_color();
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const SkColor background_color = window()->overlay_button_color();
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SkColor frame_color =
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background_color == SkColor() ? GetFrameColor() : background_color;
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for (views::Button* button :
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{minimize_button_, maximize_button_, restore_button_, close_button_}) {
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DCHECK_EQ(std::string(views::FrameCaptionButton::kViewClassName),
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button->GetClassName());
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views::FrameCaptionButton* frame_caption_button =
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static_cast<views::FrameCaptionButton*>(button);
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frame_caption_button->SetPaintAsActive(active);
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frame_caption_button->SetButtonColor(symbol_color);
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frame_caption_button->SetBackgroundColor(frame_color);
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}
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}
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void OpaqueFrameView::UpdateCaptionButtonPlaceholderContainerBackground() {
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if (caption_button_placeholder_container_) {
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const SkColor obc = window()->overlay_button_color();
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const SkColor bg_color = obc == SkColor() ? GetFrameColor() : obc;
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caption_button_placeholder_container_->SetBackground(
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views::CreateSolidBackground(bg_color));
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}
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}
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void OpaqueFrameView::LayoutWindowControls() {
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// Keep a list of all buttons that we don't show.
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std::vector<views::FrameButton> buttons_not_shown;
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buttons_not_shown.push_back(views::FrameButton::kMaximize);
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buttons_not_shown.push_back(views::FrameButton::kMinimize);
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buttons_not_shown.push_back(views::FrameButton::kClose);
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for (const auto& button : leading_buttons_) {
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ConfigureButton(button, ALIGN_LEADING);
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std::erase(buttons_not_shown, button);
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}
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for (const auto& button : base::Reversed(trailing_buttons_)) {
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ConfigureButton(button, ALIGN_TRAILING);
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std::erase(buttons_not_shown, button);
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}
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for (const auto& button_id : buttons_not_shown)
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HideButton(button_id);
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}
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void OpaqueFrameView::LayoutWindowControlsOverlay() {
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int overlay_height = window()->titlebar_overlay_height();
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if (overlay_height == 0) {
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// Accounting for the 1 pixel margin at the top of the button container
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overlay_height =
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window()->IsMaximized()
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? caption_button_placeholder_container_->size().height()
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: caption_button_placeholder_container_->size().height() + 1;
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}
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int overlay_width = caption_button_placeholder_container_->size().width();
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int bounding_rect_width = width() - overlay_width;
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auto bounding_rect =
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GetMirroredRect(gfx::Rect(0, 0, bounding_rect_width, overlay_height));
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window()->SetWindowControlsOverlayRect(bounding_rect);
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window()->NotifyLayoutWindowControlsOverlay();
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}
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views::Button* OpaqueFrameView::CreateButton(
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ViewID view_id,
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int accessibility_string_id,
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views::CaptionButtonIcon icon_type,
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int ht_component,
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const gfx::VectorIcon& icon_image,
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views::Button::PressedCallback callback) {
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views::FrameCaptionButton* button = new views::FrameCaptionButton(
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views::Button::PressedCallback(), icon_type, ht_component);
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button->SetImage(button->GetIcon(), views::FrameCaptionButton::Animate::kNo,
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icon_image);
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button->SetFocusBehavior(FocusBehavior::ACCESSIBLE_ONLY);
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button->SetCallback(std::move(callback));
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button->SetAccessibleName(l10n_util::GetStringUTF16(accessibility_string_id));
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button->SetID(view_id);
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AddChildView(button);
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button->SetPaintToLayer();
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button->layer()->SetFillsBoundsOpaquely(false);
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return button;
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}
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gfx::Insets OpaqueFrameView::FrameBorderInsets(bool restored) const {
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return !restored && IsFrameCondensed() ? gfx::Insets()
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: RestoredFrameBorderInsets();
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}
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int OpaqueFrameView::FrameTopBorderThickness(bool restored) const {
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int thickness = FrameBorderInsets(restored).top();
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if ((restored || !IsFrameCondensed()) && thickness > 0)
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thickness += NonClientExtraTopThickness();
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return thickness;
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}
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OpaqueFrameView::TopAreaPadding OpaqueFrameView::GetTopAreaPadding(
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bool has_leading_buttons,
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bool has_trailing_buttons) const {
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const auto padding = FrameBorderInsets(false);
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return TopAreaPadding{padding.left(), padding.right()};
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}
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bool OpaqueFrameView::IsFrameCondensed() const {
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return frame()->IsMaximized() || frame()->IsFullscreen();
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}
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gfx::Insets OpaqueFrameView::RestoredFrameBorderInsets() const {
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return gfx::Insets();
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}
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gfx::Insets OpaqueFrameView::RestoredFrameEdgeInsets() const {
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return gfx::Insets::TLBR(kTopFrameEdgeThickness, kSideFrameEdgeThickness,
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kSideFrameEdgeThickness, kSideFrameEdgeThickness);
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}
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int OpaqueFrameView::NonClientExtraTopThickness() const {
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return kNonClientExtraTopThickness;
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}
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int OpaqueFrameView::NonClientTopHeight(bool restored) const {
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// Adding 2px of vertical padding puts at least 1 px of space on the top and
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// bottom of the element.
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constexpr int kVerticalPadding = 2;
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const int icon_height = GetIconSize() + kVerticalPadding;
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const int caption_button_height = DefaultCaptionButtonY(restored) +
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kCaptionButtonHeight +
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kCaptionButtonBottomPadding;
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int custom_height = window()->titlebar_overlay_height();
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return custom_height ? custom_height
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: std::max(icon_height, caption_button_height) +
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kContentEdgeShadowThickness;
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}
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int OpaqueFrameView::CaptionButtonY(views::FrameButton button_id,
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bool restored) const {
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return DefaultCaptionButtonY(restored);
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}
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int OpaqueFrameView::DefaultCaptionButtonY(bool restored) const {
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// Maximized buttons start at window top, since the window has no border. This
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// offset is for the image (the actual clickable bounds extend all the way to
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// the top to take Fitts' Law into account).
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const bool start_at_top_of_frame = !restored && IsFrameCondensed();
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return start_at_top_of_frame
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? FrameBorderInsets(false).top()
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: views::NonClientFrameView::kFrameShadowThickness;
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}
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gfx::Insets OpaqueFrameView::FrameEdgeInsets(bool restored) const {
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return RestoredFrameEdgeInsets();
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}
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int OpaqueFrameView::GetIconSize() const {
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// The icon never shrinks below 16 px on a side.
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const int kIconMinimumSize = 16;
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return std::max(gfx::FontList().GetHeight(), kIconMinimumSize);
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}
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OpaqueFrameView::TopAreaPadding OpaqueFrameView::GetTopAreaPadding() const {
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return GetTopAreaPadding(!leading_buttons_.empty(),
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!trailing_buttons_.empty());
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}
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SkColor OpaqueFrameView::GetFrameColor() const {
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return GetColorProvider()->GetColor(
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ShouldPaintAsActive() ? ui::kColorFrameActive : ui::kColorFrameInactive);
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}
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void OpaqueFrameView::ConfigureButton(views::FrameButton button_id,
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ButtonAlignment alignment) {
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switch (button_id) {
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case views::FrameButton::kMinimize: {
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bool can_minimize = true; // delegate_->CanMinimize();
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if (can_minimize) {
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minimize_button_->SetVisible(true);
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SetBoundsForButton(button_id, minimize_button_, alignment);
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} else {
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HideButton(button_id);
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}
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break;
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}
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case views::FrameButton::kMaximize: {
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bool can_maximize = true; // delegate_->CanMaximize();
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if (can_maximize) {
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// When the window is restored, we show a maximized button; otherwise,
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// we show a restore button.
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bool is_restored = !window()->IsMaximized() && !window()->IsMinimized();
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views::Button* invisible_button =
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is_restored ? restore_button_ : maximize_button_;
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invisible_button->SetVisible(false);
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views::Button* visible_button =
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is_restored ? maximize_button_ : restore_button_;
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visible_button->SetVisible(true);
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SetBoundsForButton(button_id, visible_button, alignment);
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} else {
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HideButton(button_id);
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}
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break;
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}
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case views::FrameButton::kClose: {
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close_button_->SetVisible(true);
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SetBoundsForButton(button_id, close_button_, alignment);
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break;
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}
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}
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}
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void OpaqueFrameView::HideButton(views::FrameButton button_id) {
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switch (button_id) {
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case views::FrameButton::kMinimize:
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minimize_button_->SetVisible(false);
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break;
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case views::FrameButton::kMaximize:
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restore_button_->SetVisible(false);
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maximize_button_->SetVisible(false);
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break;
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case views::FrameButton::kClose:
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close_button_->SetVisible(false);
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break;
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}
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}
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void OpaqueFrameView::SetBoundsForButton(views::FrameButton button_id,
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views::Button* button,
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ButtonAlignment alignment) {
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const int caption_y = CaptionButtonY(button_id, false);
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// There should always be the same number of non-shadow pixels visible to the
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// side of the caption buttons. In maximized mode we extend buttons to the
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// screen top and the rightmost button to the screen right (or leftmost button
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// to the screen left, for left-aligned buttons) to obey Fitts' Law.
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const bool is_frame_condensed = IsFrameCondensed();
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const int button_width = views::GetCaptionButtonWidth();
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gfx::Size button_size = button->GetPreferredSize();
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DCHECK_EQ(std::string(views::FrameCaptionButton::kViewClassName),
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button->GetClassName());
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const int caption_button_center_size =
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button_width - 2 * views::kCaptionButtonInkDropDefaultCornerRadius;
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const int height = GetTopAreaHeight() - FrameEdgeInsets(false).top();
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const int corner_radius =
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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
|