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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <vector>
#include "ash/test/ash_test_base.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/browser/ui/ash/accessibility/ax_tree_source_ash.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/accessibility/ax_enums.h"
#include "ui/accessibility/ax_node.h"
#include "ui/accessibility/ax_serializable_tree.h"
#include "ui/accessibility/ax_tree_serializer.h"
#include "ui/accessibility/ax_tree_update.h"
#include "ui/aura/window.h"
#include "ui/views/accessibility/ax_aura_obj_cache.h"
#include "ui/views/accessibility/ax_aura_obj_wrapper.h"
#include "ui/views/controls/textfield/textfield.h"
#include "ui/views/test/views_test_base.h"
#include "ui/views/widget/widget.h"
using views::AXAuraObjCache;
using views::AXAuraObjWrapper;
using views::Textfield;
using views::View;
using views::Widget;
// Helper to count the number of nodes in a tree.
size_t GetSize(AXAuraObjWrapper* tree) {
size_t count = 1;
std::vector<AXAuraObjWrapper*> out_children;
tree->GetChildren(&out_children);
for (size_t i = 0; i < out_children.size(); ++i)
count += GetSize(out_children[i]);
return count;
}
class AXTreeSourceAshTest : public ash::test::AshTestBase {
public:
AXTreeSourceAshTest() {}
~AXTreeSourceAshTest() override {}
void SetUp() override {
AshTestBase::SetUp();
widget_ = new Widget();
Widget::InitParams init_params(Widget::InitParams::TYPE_POPUP);
init_params.parent = CurrentContext();
widget_->Init(init_params);
content_ = new View();
widget_->SetContentsView(content_);
textfield_ = new Textfield();
textfield_->SetText(base::ASCIIToUTF16("Value"));
content_->AddChildView(textfield_);
}
protected:
Widget* widget_;
View* content_;
Textfield* textfield_;
private:
DISALLOW_COPY_AND_ASSIGN(AXTreeSourceAshTest);
};
TEST_F(AXTreeSourceAshTest, Accessors) {
AXTreeSourceAsh ax_tree;
ASSERT_TRUE(ax_tree.GetRoot());
// ID's should start at 1 and there should be a root.
ASSERT_EQ(1, ax_tree.GetRoot()->GetID());
// Grab the content view directly from cache to avoid walking down the tree.
AXAuraObjWrapper* content =
AXAuraObjCache::GetInstance()->GetOrCreate(content_);
std::vector<AXAuraObjWrapper*> content_children;
ax_tree.GetChildren(content, &content_children);
ASSERT_EQ(1U, content_children.size());
// Walk down to the text field and assert it is what we expect.
AXAuraObjWrapper* textfield = content_children[0];
AXAuraObjWrapper* cached_textfield =
AXAuraObjCache::GetInstance()->GetOrCreate(textfield_);
ASSERT_EQ(cached_textfield, textfield);
std::vector<AXAuraObjWrapper*> textfield_children;
ax_tree.GetChildren(textfield, &textfield_children);
ASSERT_EQ(0U, textfield_children.size());
ASSERT_EQ(content, textfield->GetParent());
// Try walking up the tree to the root.
AXAuraObjWrapper* test_root = NULL;
for (AXAuraObjWrapper* root_finder = ax_tree.GetParent(content); root_finder;
root_finder = ax_tree.GetParent(root_finder))
test_root = root_finder;
ASSERT_EQ(ax_tree.GetRoot(), test_root);
}
TEST_F(AXTreeSourceAshTest, Serialization) {
AXTreeSourceAsh ax_tree;
ui::AXTreeSerializer<AXAuraObjWrapper*> ax_serializer(&ax_tree);
ui::AXTreeUpdate out_update;
// This is the initial serialization.
ax_serializer.SerializeChanges(ax_tree.GetRoot(), &out_update);
// We should get an update per node.
ASSERT_EQ(GetSize(ax_tree.GetRoot()), out_update.nodes.size());
// Try removing some child views and re-adding.
content_->RemoveAllChildViews(false /* delete_children */);
content_->AddChildView(textfield_);
// Grab the textfield since serialization only walks up the tree (not down
// from root).
AXAuraObjWrapper* textfield_wrapper =
AXAuraObjCache::GetInstance()->GetOrCreate(textfield_);
// Now, re-serialize.
ui::AXTreeUpdate out_update2;
ax_serializer.SerializeChanges(textfield_wrapper, &out_update2);
// We should have far fewer updates this time around.
ASSERT_EQ(2U, out_update2.nodes.size());
ASSERT_EQ(ui::AX_ROLE_CLIENT,
out_update2.nodes[0].role);
ASSERT_EQ(textfield_wrapper->GetID(), out_update2.nodes[1].id);
ASSERT_EQ(ui::AX_ROLE_TEXT_FIELD,
out_update2.nodes[1].role);
}
TEST_F(AXTreeSourceAshTest, DoDefault) {
AXTreeSourceAsh ax_tree;
// Grab a wrapper to |DoDefault| (click).
AXAuraObjWrapper* textfield_wrapper =
AXAuraObjCache::GetInstance()->GetOrCreate(textfield_);
// Click and verify focus.
ASSERT_FALSE(textfield_->HasFocus());
textfield_wrapper->DoDefault();
ASSERT_TRUE(textfield_->HasFocus());
}
TEST_F(AXTreeSourceAshTest, Focus) {
AXTreeSourceAsh ax_tree;
// Grab a wrapper to focus.
AXAuraObjWrapper* textfield_wrapper =
AXAuraObjCache::GetInstance()->GetOrCreate(textfield_);
// Focus and verify.
ASSERT_FALSE(textfield_->HasFocus());
textfield_wrapper->Focus();
ASSERT_TRUE(textfield_->HasFocus());
}
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