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// Copyright 2024 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/task_manager_search_bar_view.h"
#include <memory>
#include <string>
#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "chrome/browser/ui/color/chrome_color_id.h"
#include "chrome/grit/branded_strings.h"
#include "components/vector_icons/vector_icons.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/metadata/metadata_impl_macros.h"
#include "ui/color/color_id.h"
#include "ui/views/controls/button/image_button_factory.h"
#include "ui/views/controls/highlight_path_generator.h"
#include "ui/views/controls/image_view.h"
#include "ui/views/layout/box_layout.h"
#include "ui/views/layout/flex_layout.h"
namespace task_manager {
TaskManagerSearchBarView::TaskManagerSearchBarView(
const std::u16string& placeholder,
const gfx::Insets& margins,
Delegate& delegate)
: delegate_(delegate)
#if BUILDFLAG(IS_LINUX)
,
textfield_placeholder_color_id_(kColorTaskManagerSearchBarPlaceholderText)
#endif
{
auto* layout_provider = ChromeLayoutProvider::Get();
auto search_bar_layout = std::make_unique<views::BoxLayout>();
search_bar_layout->SetOrientation(views::LayoutOrientation::kHorizontal);
search_bar_layout->set_main_axis_alignment(views::LayoutAlignment::kStretch);
search_bar_layout->set_cross_axis_alignment(views::LayoutAlignment::kCenter);
auto search_icon =
std::make_unique<views::ImageView>(ui::ImageModel::FromVectorIcon(
vector_icons::kSearchChromeRefreshIcon, ui::kColorIcon,
layout_provider->GetDistanceMetric(
DISTANCE_TASK_MANAGER_SEARCH_ICON_SIZE)));
search_icon->SetProperty(views::kMarginsKey, margins);
auto input =
views::Builder<views::Textfield>()
.SetPlaceholderText(placeholder)
.SetAccessibleName(l10n_util::GetStringUTF16(
IDS_TASK_MANAGER_SEARCH_ACCESSIBILITY_NAME))
.SetController(this)
.SetBorder(nullptr)
.SetBackgroundColor(kColorTaskManagerSearchBarBackground)
.SetProperty(views::kElementIdentifierKey, kInputField)
// Set margins to remove duplicate space between search
// icon and textfield.
.SetProperty(views::kMarginsKey, gfx::Insets::TLBR(0, 0, 0, 0))
.Build();
auto clear_btn =
views::Builder<views::ImageButton>(
views::CreateVectorImageButtonWithNativeTheme(
base::BindRepeating(&TaskManagerSearchBarView::OnClearPressed,
base::Unretained(this)),
vector_icons::kCloseChromeRefreshIcon))
// Reset the border set by
// `CreateVectorImageButtonWithNativeTheme()` as it sets
// an unnecessary padding to the highlighting circle.
.SetBorder(nullptr)
.SetAccessibleName(l10n_util::GetStringUTF16(
IDS_TASK_MANAGER_CLEAR_SEARCH_BUTTON_ACCESSIBILITY_NAME))
.SetProperty(views::kMarginsKey, margins)
.Build();
search_bar_layout->SetFlexForView(input.get(), 1);
SetLayoutManager(std::move(search_bar_layout));
AddChildView(std::move(search_icon));
input_ = AddChildView(std::move(input));
input_->RemoveHoverEffect();
input_changed_subscription_ =
input_->AddTextChangedCallback(base::BindRepeating(
&TaskManagerSearchBarView::OnInputChanged, base::Unretained(this)));
clear_ = AddChildView(std::move(clear_btn));
views::InstallCircleHighlightPathGenerator(clear_);
// Only visible when users type in search keywords.
if (input_->GetText().empty()) {
clear_->SetVisible(false);
}
}
TaskManagerSearchBarView::~TaskManagerSearchBarView() = default;
void TaskManagerSearchBarView::OnThemeChanged() {
views::View::OnThemeChanged();
UpdateTextfield();
}
bool TaskManagerSearchBarView::HandleKeyEvent(views::Textfield* /*sender*/,
const ui::KeyEvent& key_event) {
// Clear button should be visible only if input text is not empty.
// Early return if visibility is consistent with the input text.
// Case 1 : clear button is visible and input text is not empty.
// Case 2 : clear button is invisible and input text is empty.
if (clear_->GetVisible() != input_->GetText().empty()) {
return false;
}
if (key_event.type() == ui::EventType::kKeyReleased) {
clear_->SetVisible(!input_->GetText().empty());
}
return false;
}
void TaskManagerSearchBarView::Focus() {
input_->RequestFocus();
}
void TaskManagerSearchBarView::OnInputChanged() {
input_change_notification_timer_.Start(
FROM_HERE, kInputChangeCallbackDelay,
// `delegate_` is expected to outlive `this`, the timer will either be
// triggered when it is alive or canceled.
base::BindOnce(&Delegate::SearchBarOnInputChanged,
base::Unretained(delegate_), input_->GetText()));
}
void TaskManagerSearchBarView::OnClearPressed() {
input_->SetText(u"");
clear_->SetVisible(false);
input_->RequestFocus();
}
bool TaskManagerSearchBarView::GetClearButtonVisibleStatusForTesting() const {
return clear_->GetVisible();
}
void TaskManagerSearchBarView::SetInputTextForTesting(
const std::u16string& text) {
input_->SetText(text);
}
gfx::Point TaskManagerSearchBarView::GetClearButtonScreenCenterPointForTesting()
const {
return clear_->GetBoundsInScreen().CenterPoint();
}
void TaskManagerSearchBarView::UpdateTextfield() {
if (const auto* const color_provider = GetColorProvider(); color_provider) {
input_->set_placeholder_text_color(
color_provider->GetColor(textfield_placeholder_color_id_.value_or(
ui::kColorTextfieldForegroundPlaceholder)));
}
}
BEGIN_METADATA(TaskManagerSearchBarView)
END_METADATA
DEFINE_CLASS_ELEMENT_IDENTIFIER_VALUE(TaskManagerSearchBarView, kInputField);
} // namespace task_manager
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