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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/toolbar/split_tabs_button.h"
#include <memory>
#include "base/check_op.h"
#include "base/containers/fixed_flat_map.h"
#include "chrome/app/vector_icons/vector_icons.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/actions/chrome_action_id.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_commands.h"
#include "chrome/browser/ui/browser_element_identifiers.h"
#include "chrome/browser/ui/browser_window/public/browser_window_interface.h"
#include "chrome/browser/ui/color/chrome_color_id.h"
#include "chrome/browser/ui/tabs/split_tab_menu_model.h"
#include "chrome/browser/ui/tabs/split_tab_util.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "chrome/browser/ui/views/toolbar/pinned_action_toolbar_button_menu_model.h"
#include "chrome/browser/ui/views/toolbar/pinned_toolbar_button_status_indicator.h"
#include "chrome/browser/ui/views/toolbar/toolbar_button.h"
#include "chrome/common/pref_names.h"
#include "chrome/grit/generated_resources.h"
#include "components/prefs/pref_service.h"
#include "components/tabs/public/split_tab_data.h"
#include "components/tabs/public/split_tab_visual_data.h"
#include "components/tabs/public/tab_interface.h"
#include "ui/base/interaction/element_identifier.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/menu_source_utils.h"
#include "ui/base/metadata/metadata_impl_macros.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/vector_icon_types.h"
#include "ui/menus/simple_menu_model.h"
#include "ui/views/accessibility/view_accessibility.h"
#include "ui/views/controls/button/menu_button_controller.h"
#include "ui/views/controls/menu/menu_runner.h"
#include "ui/views/view_class_properties.h"
namespace {
// Width of the status indicator shown across the button.
constexpr int kStatusIndicatorWidth = 14;
// Height of the status indicator shown across the button.
constexpr int kStatusIndicatorHeight = 2;
// Spacing between the button's icon and the status indicator.
constexpr int kStatusIndicatorSpacing = 1;
} // namespace
DEFINE_CLASS_ELEMENT_IDENTIFIER_VALUE(SplitTabsToolbarButton,
kUpdatePinStateMenu);
SplitTabsToolbarButton::SplitTabsToolbarButton(Browser* browser)
: ToolbarButton(
views::Button::PressedCallback(),
std::make_unique<PinnedActionToolbarButtonMenuModel>(browser,
kActionSplitTab),
nullptr,
false),
browser_(browser) {
SetProperty(views::kElementIdentifierKey,
kToolbarSplitTabsToolbarButtonElementId);
set_menu_identifier(kUpdatePinStateMenu);
SetButtonController(std::make_unique<views::MenuButtonController>(
this,
base::BindRepeating(&SplitTabsToolbarButton::ButtonPressed,
base::Unretained(this)),
std::make_unique<views::Button::DefaultButtonControllerDelegate>(this)));
GetViewAccessibility().SetName(
l10n_util::GetStringUTF16(IDS_ACCNAME_SPLIT_TABS));
pin_state_.Init(
prefs::kPinSplitTabButton, browser_->profile()->GetPrefs(),
base::BindRepeating(&SplitTabsToolbarButton::UpdateButtonVisibility,
base::Unretained(this)));
views::View* const image_container = image_container_view();
status_indicator_ =
PinnedToolbarButtonStatusIndicator::Install(image_container);
status_indicator_->SetColorId(kColorToolbarActionItemEngaged,
kColorToolbarButtonIconInactive);
UpdateButtonVisibility();
split_tab_menu_ = std::make_unique<SplitTabMenuModel>(
browser->tab_strip_model(),
SplitTabMenuModel::CloseTabMenuItem::kCloseStartEndTab);
browser->tab_strip_model()->AddObserver(this);
}
SplitTabsToolbarButton::~SplitTabsToolbarButton() {
browser_->tab_strip_model()->RemoveObserver(this);
}
void SplitTabsToolbarButton::OnTabStripModelChanged(
TabStripModel* tab_strip_model,
const TabStripModelChange& change,
const TabStripSelectionChange& selection) {
if (selection.active_tab_changed()) {
UpdateButtonVisibility();
}
}
void SplitTabsToolbarButton::OnSplitTabChanged(const SplitTabChange& change) {
if (change.type == SplitTabChange::Type::kAdded ||
change.type == SplitTabChange::Type::kRemoved ||
change.type == SplitTabChange::Type::kContentsChanged) {
UpdateButtonVisibility();
}
}
void SplitTabsToolbarButton::Layout(PassKey) {
LayoutSuperclass<ToolbarButton>(this);
gfx::Rect status_rect(kStatusIndicatorWidth, kStatusIndicatorHeight);
const gfx::Rect image_container_bounds =
image_container_view()->GetLocalBounds();
const int new_x =
image_container_bounds.x() +
(image_container_bounds.width() - kStatusIndicatorWidth) / 2;
const int new_y = image_container_bounds.bottom() + kStatusIndicatorSpacing;
status_rect.set_origin(gfx::Point(new_x, new_y));
status_indicator_->SetBoundsRect(status_rect);
}
void SplitTabsToolbarButton::UpdateIcon() {
const std::optional<VectorIcons>& icons = GetVectorIcons();
if (!icons.has_value() || !GetColorProvider()) {
return;
}
if (IsActiveTabInSplit()) {
const gfx::VectorIcon& icon = ui::TouchUiController::Get()->touch_ui()
? icons->touch_icon
: icons->icon;
SkColor engaged_color =
GetColorProvider()->GetColor(kColorToolbarActionItemEngaged);
UpdateIconsWithColors(icon, engaged_color, engaged_color, engaged_color,
GetForegroundColor(ButtonState::STATE_DISABLED));
} else {
ToolbarButton::UpdateIcon();
}
}
const std::optional<ToolbarButton::VectorIcons>&
SplitTabsToolbarButton::GetIconsForTesting() {
return GetVectorIcons();
}
bool SplitTabsToolbarButton::IsActiveTabInSplit() {
TabStripModel* const tab_strip_model = browser_->tab_strip_model();
return tab_strip_model && tab_strip_model->GetActiveTab() &&
tab_strip_model->GetActiveTab()->IsSplit();
}
void SplitTabsToolbarButton::ButtonPressed(const ui::Event& event) {
if (IsActiveTabInSplit()) {
menu_runner_ = std::make_unique<views::MenuRunner>(
split_tab_menu_.get(), views::MenuRunner::HAS_MNEMONICS);
menu_runner_->RunMenuAt(
GetWidget(),
static_cast<views::MenuButtonController*>(button_controller()),
GetAnchorBoundsInScreen(), views::MenuAnchorPosition::kTopLeft,
ui::GetMenuSourceTypeForEvent(event));
} else {
chrome::NewSplitTab(browser_);
}
}
void SplitTabsToolbarButton::UpdateButtonVisibility() {
const bool is_active_tab_in_split = IsActiveTabInSplit();
UpdateButtonIcon();
UpdateStatusIndicator(is_active_tab_in_split);
SetVisible(pin_state_.GetValue() || is_active_tab_in_split);
UpdateAccessibilityRole(is_active_tab_in_split);
}
void SplitTabsToolbarButton::UpdateButtonIcon() {
TabStripModel* const tab_strip_model = browser_->tab_strip_model();
tabs::TabInterface* const active_tab = tab_strip_model->GetActiveTab();
if (active_tab && active_tab->IsSplit()) {
const split_tabs::SplitTabActiveLocation location =
split_tabs::GetLastActiveTabLocation(tab_strip_model,
active_tab->GetSplit().value());
constexpr auto icons =
base::MakeFixedFlatMap<split_tabs::SplitTabActiveLocation,
const gfx::VectorIcon*>({
{split_tabs::SplitTabActiveLocation::kStart, &kSplitSceneLeftIcon},
{split_tabs::SplitTabActiveLocation::kEnd, &kSplitSceneRightIcon},
{split_tabs::SplitTabActiveLocation::kTop, &kSplitSceneUpIcon},
{split_tabs::SplitTabActiveLocation::kBottom, &kSplitSceneDownIcon},
});
SetVectorIcon(*icons.at(location));
} else {
SetVectorIcon(kSplitSceneIcon);
}
}
void SplitTabsToolbarButton::UpdateStatusIndicator(bool show_status_indicator) {
if (show_status_indicator) {
status_indicator_->Show();
} else {
status_indicator_->Hide();
}
}
void SplitTabsToolbarButton::UpdateAccessibilityRole(bool has_menu) {
auto role =
has_menu ? ax::mojom::Role::kPopUpButton : ax::mojom::Role::kButton;
if (role == GetViewAccessibility().GetCachedRole()) {
return;
}
GetViewAccessibility().SetRole(role);
GetViewAccessibility().SetHasPopup(has_menu ? ax::mojom::HasPopup::kMenu
: ax::mojom::HasPopup::kFalse);
}
BEGIN_METADATA(SplitTabsToolbarButton)
END_METADATA
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