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// Copyright 2025 The Chromium Authors
// 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/contents_container_view.h"
#include <memory>
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/browser_element_identifiers.h"
#include "chrome/browser/ui/color/chrome_color_id.h"
#include "chrome/browser/ui/ui_features.h"
#include "chrome/browser/ui/view_ids.h"
#include "chrome/browser/ui/views/frame/browser_view.h"
#include "chrome/browser/ui/views/frame/contents_separator.h"
#include "chrome/browser/ui/views/frame/contents_web_view.h"
#include "chrome/browser/ui/views/frame/multi_contents_view_mini_toolbar.h"
#include "chrome/browser/ui/views/frame/scrim_view.h"
#include "chrome/browser/ui/views/new_tab_footer/footer_web_view.h"
#include "chrome/common/chrome_features.h"
#include "components/search/ntp_features.h"
#include "ui/base/metadata/metadata_impl_macros.h"
#include "ui/color/color_provider.h"
#include "ui/compositor/layer.h"
#include "ui/gfx/geometry/insets.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/views/border.h"
#include "ui/views/layout/delegating_layout_manager.h"
#include "ui/views/layout/fill_layout.h"
#include "ui/views/layout/proposed_layout.h"
#include "ui/views/view_class_properties.h"
#if BUILDFLAG(ENABLE_GLIC)
#include "chrome/browser/glic/browser_ui/glic_border_view.h"
#include "chrome/browser/glic/glic_enabling.h"
#endif
namespace {
constexpr float kContentCornerRadius = 6;
constexpr gfx::RoundedCornersF kContentRoundedCorners{kContentCornerRadius};
constexpr int kContentOutlineCornerRadius = 8;
constexpr int kContentOutlineThickness = 1;
constexpr int kSplitViewContentPadding = 4;
constexpr int kNewTabFooterSeparatorHeight = 1;
constexpr int kNewTabFooterHeight = 56;
} // namespace
ContentsContainerView::ContentsContainerView(BrowserView* browser_view) {
SetLayoutManager(std::make_unique<views::DelegatingLayoutManager>(this));
// The default z-order is the order in which children were added to the
// parent view. So first added the content view and new tab page footer.
// This should be followed by scrims, borders and lastly mini-toolbar.
contents_view_ = AddChildView(
std::make_unique<ContentsWebView>(browser_view->GetProfile()));
contents_view_->SetID(VIEW_ID_TAB_CONTAINER);
if (base::FeatureList::IsEnabled(ntp_features::kNtpFooter)) {
new_tab_footer_view_separator_ =
AddChildView(std::make_unique<ContentsSeparator>());
new_tab_footer_view_separator_->SetProperty(
views::kElementIdentifierKey, kFooterWebViewSeparatorElementId);
new_tab_footer_view_ =
AddChildView(std::make_unique<new_tab_footer::NewTabFooterWebView>(
browser_view->browser()));
new_tab_footer_view_->SetVisible(false);
}
contents_scrim_view_ = AddChildView(std::make_unique<ScrimView>());
contents_scrim_view_->layer()->SetName("ContentsScrimView");
if (base::FeatureList::IsEnabled(features::kSideBySide)) {
inactive_split_scrim_view_ =
AddChildView(std::make_unique<ScrimView>(kColorSplitViewScrim));
inactive_split_scrim_view_->SetRoundedCorners(kContentRoundedCorners);
}
if (features::kGlicActorUiOverlay.Get()) {
auto actor_overlay_view = std::make_unique<views::View>();
actor_overlay_view->SetID(VIEW_ID_ACTOR_OVERLAY);
actor_overlay_view->SetVisible(false);
actor_overlay_view->SetLayoutManager(std::make_unique<views::FillLayout>());
actor_overlay_view_ = AddChildView(std::move(actor_overlay_view));
}
#if BUILDFLAG(ENABLE_GLIC)
if (glic::GlicEnabling::IsProfileEligible(browser_view->GetProfile())) {
glic_border_ =
AddChildView(views::Builder<glic::GlicBorderView>(
glic::GlicBorderView::Factory::Create(
browser_view->browser(), contents_view_))
.SetVisible(false)
.SetCanProcessEventsWithinSubtree(false)
.Build());
}
#endif
if (base::FeatureList::IsEnabled(features::kSideBySide)) {
mini_toolbar_ = AddChildView(std::make_unique<MultiContentsViewMiniToolbar>(
browser_view, contents_view_));
}
}
void ContentsContainerView::UpdateBorderAndOverlay(bool is_in_split,
bool is_active,
bool show_scrim) {
is_in_split_ = is_in_split;
// The border, mini toolbar, and scrim should not be visible if not in a
// split.
if (!is_in_split) {
SetBorder(nullptr);
ClearBorderRoundedCorners();
mini_toolbar_->SetVisible(false);
inactive_split_scrim_view_->SetVisible(false);
return;
}
// Draw active/inactive outlines around the contents areas and updates mini
// toolbar visibility.
const SkColor color =
is_active ? GetColorProvider()->GetColor(
kColorMulitContentsViewActiveContentOutline)
: GetColorProvider()->GetColor(
kColorMulitContentsViewInactiveContentOutline);
SetBorder(views::CreatePaddedBorder(
views::CreateRoundedRectBorder(kContentOutlineThickness,
kContentOutlineCornerRadius, color),
gfx::Insets(kSplitViewContentPadding)));
UpdateBorderRoundedCorners();
// Mini toolbar should only be visible for the inactive contents
// container view or both depending on configuration.
mini_toolbar_->UpdateState(is_active);
// Scrim should only be allowed to show the scrim for inactive contents
// container view.
inactive_split_scrim_view_->SetVisible(!is_active && show_scrim);
}
void ContentsContainerView::UpdateBorderRoundedCorners() {
constexpr gfx::RoundedCornersF kContentUpperRoundedCorners =
gfx::RoundedCornersF{kContentCornerRadius, kContentCornerRadius, 0, 0};
constexpr gfx::RoundedCornersF kContentLowerRoundedCorners =
gfx::RoundedCornersF{0, 0, kContentCornerRadius, kContentCornerRadius};
auto radii = new_tab_footer_view_ && new_tab_footer_view_->GetVisible()
? kContentUpperRoundedCorners
: kContentRoundedCorners;
contents_view_->holder()->SetCornerRadii(radii);
if (new_tab_footer_view_) {
new_tab_footer_view_->holder()->SetCornerRadii(kContentLowerRoundedCorners);
}
if (contents_scrim_view_->layer()->rounded_corner_radii() !=
kContentRoundedCorners) {
contents_scrim_view_->SetRoundedCorners(kContentRoundedCorners);
}
}
void ContentsContainerView::ClearBorderRoundedCorners() {
constexpr gfx::RoundedCornersF kNoRoundedCorners = gfx::RoundedCornersF{0};
contents_view_->holder()->SetCornerRadii(kNoRoundedCorners);
if (new_tab_footer_view_) {
new_tab_footer_view_->holder()->SetCornerRadii(kNoRoundedCorners);
}
contents_scrim_view_->SetRoundedCorners(kNoRoundedCorners);
}
void ContentsContainerView::ChildVisibilityChanged(View* child) {
if (child == new_tab_footer_view_ && is_in_split_) {
UpdateBorderRoundedCorners();
}
}
views::ProposedLayout ContentsContainerView::CalculateProposedLayout(
const views::SizeBounds& size_bounds) const {
views::ProposedLayout layouts;
if (!size_bounds.is_fully_bounded()) {
return layouts;
}
int height = size_bounds.height().value();
int width = size_bounds.width().value();
// |contents_view_| and |new_tab_footer_view_| (if it exists) should fill the
// contents bounds.
gfx::Rect contents_bounds = GetContentsBounds();
gfx::Rect contents_rect = contents_bounds;
if (new_tab_footer_view_ && new_tab_footer_view_->GetVisible()) {
// Shrink contents rect if the ntp footer is visible.
contents_rect.set_height(contents_rect.height() - kNewTabFooterHeight -
kNewTabFooterSeparatorHeight);
gfx::Rect footer_separator_rect =
gfx::Rect(contents_bounds.x(), contents_rect.bottom(),
contents_bounds.width(), kNewTabFooterSeparatorHeight);
gfx::Rect footer_rect =
gfx::Rect(contents_bounds.x(), footer_separator_rect.bottom(),
contents_bounds.width(), kNewTabFooterHeight);
layouts.child_layouts.emplace_back(
new_tab_footer_view_separator_.get(),
new_tab_footer_view_separator_->GetVisible(), footer_separator_rect);
layouts.child_layouts.emplace_back(new_tab_footer_view_.get(),
new_tab_footer_view_->GetVisible(),
footer_rect);
}
layouts.child_layouts.emplace_back(
contents_view_.get(), contents_view_->GetVisible(), contents_rect);
#if BUILDFLAG(ENABLE_GLIC)
if (glic_border_) {
layouts.child_layouts.emplace_back(
glic_border_.get(), glic_border_->GetVisible(), contents_bounds);
}
#endif
// The scrim view should cover the entire contents bounds.
CHECK(contents_scrim_view_);
layouts.child_layouts.emplace_back(contents_scrim_view_.get(),
contents_scrim_view_->GetVisible(),
contents_bounds);
// The scrim view should cover the entire contents bounds.
if (inactive_split_scrim_view_) {
layouts.child_layouts.emplace_back(inactive_split_scrim_view_.get(),
inactive_split_scrim_view_->GetVisible(),
contents_bounds);
}
// Actor Overlay view bounds are the same as the contents view.
if (actor_overlay_view_) {
layouts.child_layouts.emplace_back(actor_overlay_view_.get(),
actor_overlay_view_->GetVisible(),
contents_rect, size_bounds);
}
if (mini_toolbar_) {
// |mini_toolbar_| should be offset in the bottom right corner, overlapping
// the outline.
gfx::Size mini_toolbar_size = mini_toolbar_->GetPreferredSize(
views::SizeBounds(width - kContentOutlineCornerRadius, height));
const int offset_x =
width - mini_toolbar_size.width() + (kContentOutlineThickness / 2.0f);
const int offset_y =
height - mini_toolbar_size.height() + (kContentOutlineThickness / 2.0f);
const gfx::Rect mini_toolbar_rect =
gfx::Rect(offset_x, offset_y, mini_toolbar_size.width(),
mini_toolbar_size.height());
layouts.child_layouts.emplace_back(
mini_toolbar_.get(), mini_toolbar_->GetVisible(), mini_toolbar_rect);
}
layouts.host_size = gfx::Size(width, height);
return layouts;
}
BEGIN_METADATA(ContentsContainerView)
END_METADATA
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