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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.
#ifndef CHROME_BROWSER_UI_TABS_TEST_SPLIT_TABS_INTERACTIVE_TEST_MIXIN_H_
#define CHROME_BROWSER_UI_TABS_TEST_SPLIT_TABS_INTERACTIVE_TEST_MIXIN_H_
#include <concepts>
#include "base/test/bind.h"
#include "base/test/scoped_feature_list.h"
#include "chrome/browser/ui/browser_element_identifiers.h"
#include "chrome/browser/ui/ui_features.h"
#include "chrome/browser/ui/views/frame/multi_contents_resize_area.h"
#include "chrome/browser/ui/views/frame/multi_contents_view.h"
#include "chrome/test/base/in_process_browser_test.h"
#include "chrome/test/interaction/interaction_test_util_browser.h"
#include "chrome/test/interaction/interactive_browser_test.h"
#include "components/tabs/public/split_tab_visual_data.h"
#include "ui/base/interaction/interactive_test.h"
// Template to be used as a mixin class for split tabs tests extending
// InProcessBrowserTest.
template <typename T>
requires(std::derived_from<T, InProcessBrowserTest>)
class SplitTabsInteractiveTestMixin : public T {
public:
template <class... Args>
explicit SplitTabsInteractiveTestMixin(Args&&... args)
: T(std::forward<Args>(args)...) {}
~SplitTabsInteractiveTestMixin() override = default;
SplitTabsInteractiveTestMixin(const SplitTabsInteractiveTestMixin&) = delete;
SplitTabsInteractiveTestMixin& operator=(
const SplitTabsInteractiveTestMixin&) = delete;
void SetUpCommandLine(base::CommandLine* command_line) override {
T::SetUpCommandLine(command_line);
scoped_feature_list_.InitWithFeatures({features::kSideBySide}, {});
}
MultiContentsView* multi_contents_view() {
return BrowserView::GetBrowserViewForBrowser(T::browser())
->multi_contents_view_for_testing();
}
auto EnterSplitView(int active_tab, int other_tab) {
// MultiContentsView overrides Layout, causing an edge case where the
// resize area gets set to visible but doesn't gain nonzero size until the
// next layout pass. Use PollView and WaitForState to wait for a nonzero
// size, rather than just visible = true.
using ResizeAreaLoadObserver =
views::test::PollingViewObserver<bool, MultiContentsResizeArea>;
DEFINE_LOCAL_STATE_IDENTIFIER_VALUE(ResizeAreaLoadObserver,
kResizeLoadObserver);
auto result = T::Steps(
T::SelectTab(kTabStripElementId, active_tab), T::Do([&, other_tab]() {
T::browser()->tab_strip_model()->AddToNewSplit(
{other_tab}, split_tabs::SplitTabVisualData());
}),
T::PollView(kResizeLoadObserver,
MultiContentsResizeArea::kMultiContentsResizeAreaElementId,
[](const MultiContentsResizeArea* resize_area) -> bool {
return resize_area->size().width() > 0 &&
resize_area->size().height() > 0;
}),
T::WaitForState(kResizeLoadObserver, true));
T::AddDescriptionPrefix(result, "EnterSplitView()");
return result;
}
auto ExitSplitView(int index) {
auto result = T::Steps(
T::Check([index, this]() {
return T::browser()
->tab_strip_model()
->GetSplitForTab(index)
.has_value();
}),
T::Do([index, this]() {
auto split_id =
T::browser()->tab_strip_model()->GetSplitForTab(index);
T::browser()->tab_strip_model()->RemoveSplit(split_id.value());
}),
T::WaitForHide(
MultiContentsResizeArea::kMultiContentsResizeAreaElementId),
T::Check([this]() {
return multi_contents_view()->GetInactiveContentsView()->GetVisible();
}));
T::AddDescriptionPrefix(result, "ExitSplitView()");
return result;
}
auto FocusInactiveTabInSplit() {
auto result = T::Steps(T::MoveMouseTo(base::BindLambdaForTesting([this]() {
return multi_contents_view()
->GetInactiveContentsView()
->GetBoundsInScreen()
.CenterPoint();
})),
T::ClickMouse());
T::AddDescriptionPrefix(result, "FocusInactiveTabInSplit()");
return result;
}
private:
base::test::ScopedFeatureList scoped_feature_list_;
};
#endif // CHROME_BROWSER_UI_TABS_TEST_SPLIT_TABS_INTERACTIVE_TEST_MIXIN_H_
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