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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/views/controls/prefix_selector.h"
#include <memory>
#include <string>
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "ui/views/controls/prefix_delegate.h"
#include "ui/views/test/views_test_base.h"
using base::ASCIIToUTF16;
namespace views {
class TestPrefixDelegate : public View, public PrefixDelegate {
public:
TestPrefixDelegate() {
rows_.push_back(u"aardvark");
rows_.push_back(u"antelope");
rows_.push_back(u"badger");
rows_.push_back(u"gnu");
}
TestPrefixDelegate(const TestPrefixDelegate&) = delete;
TestPrefixDelegate& operator=(const TestPrefixDelegate&) = delete;
~TestPrefixDelegate() override = default;
size_t GetRowCount() override { return rows_.size(); }
std::optional<size_t> GetSelectedRow() override { return selected_row_; }
void SetSelectedRow(std::optional<size_t> row) override {
selected_row_ = row;
}
std::u16string GetTextForRow(size_t row) override { return rows_[row]; }
private:
std::vector<std::u16string> rows_;
std::optional<size_t> selected_row_ = 0;
};
class PrefixSelectorTest : public ViewsTestBase {
public:
PrefixSelectorTest() {
selector_ = std::make_unique<PrefixSelector>(&delegate_, &delegate_);
}
PrefixSelectorTest(const PrefixSelectorTest&) = delete;
PrefixSelectorTest& operator=(const PrefixSelectorTest&) = delete;
~PrefixSelectorTest() override {
// Explicitly release |selector_| here which can happen before releasing
// |delegate_|.
selector_.reset();
}
protected:
std::unique_ptr<PrefixSelector> selector_;
TestPrefixDelegate delegate_;
};
TEST_F(PrefixSelectorTest, PrefixSelect) {
selector_->InsertText(
u"an",
ui::TextInputClient::InsertTextCursorBehavior::kMoveCursorAfterText);
EXPECT_EQ(1u, delegate_.GetSelectedRow());
// Invoke OnViewBlur() to reset time.
selector_->OnViewBlur();
selector_->InsertText(
u"a",
ui::TextInputClient::InsertTextCursorBehavior::kMoveCursorAfterText);
EXPECT_EQ(0u, delegate_.GetSelectedRow());
selector_->OnViewBlur();
selector_->InsertText(
u"g",
ui::TextInputClient::InsertTextCursorBehavior::kMoveCursorAfterText);
EXPECT_EQ(3u, delegate_.GetSelectedRow());
selector_->OnViewBlur();
selector_->InsertText(
u"b",
ui::TextInputClient::InsertTextCursorBehavior::kMoveCursorAfterText);
selector_->InsertText(
u"a",
ui::TextInputClient::InsertTextCursorBehavior::kMoveCursorAfterText);
EXPECT_EQ(2u, delegate_.GetSelectedRow());
selector_->OnViewBlur();
selector_->InsertText(
u"\t",
ui::TextInputClient::InsertTextCursorBehavior::kMoveCursorAfterText);
selector_->InsertText(
u"b",
ui::TextInputClient::InsertTextCursorBehavior::kMoveCursorAfterText);
selector_->InsertText(
u"a",
ui::TextInputClient::InsertTextCursorBehavior::kMoveCursorAfterText);
EXPECT_EQ(2u, delegate_.GetSelectedRow());
}
} // namespace views
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