}
scoped_ptr<View> host_;
- scoped_ptr<BoxLayout> layout_;
};
} // namespace
TEST_F(BoxLayoutTest, Empty) {
- layout_.reset(new BoxLayout(BoxLayout::kHorizontal, 10, 10, 20));
- EXPECT_EQ(gfx::Size(20, 20), layout_->GetPreferredSize(host_.get()));
+ BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 10, 10, 20);
+ host_->SetLayoutManager(layout);
+ EXPECT_EQ(gfx::Size(20, 20), layout->GetPreferredSize(host_.get()));
}
TEST_F(BoxLayoutTest, AlignmentHorizontal) {
- layout_.reset(new BoxLayout(BoxLayout::kHorizontal, 0, 0, 0));
+ BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 0, 0, 0);
+ host_->SetLayoutManager(layout);
View* v1 = new StaticSizedView(gfx::Size(10, 20));
host_->AddChildView(v1);
View* v2 = new StaticSizedView(gfx::Size(10, 10));
host_->AddChildView(v2);
- EXPECT_EQ(gfx::Size(20, 20), layout_->GetPreferredSize(host_.get()));
+ EXPECT_EQ(gfx::Size(20, 20), layout->GetPreferredSize(host_.get()));
host_->SetBounds(0, 0, 20, 20);
- layout_->Layout(host_.get());
+ host_->Layout();
EXPECT_EQ(gfx::Rect(0, 0, 10, 20), v1->bounds());
EXPECT_EQ(gfx::Rect(10, 0, 10, 20), v2->bounds());
}
TEST_F(BoxLayoutTest, AlignmentVertical) {
- layout_.reset(new BoxLayout(BoxLayout::kVertical, 0, 0, 0));
+ BoxLayout* layout = new BoxLayout(BoxLayout::kVertical, 0, 0, 0);
+ host_->SetLayoutManager(layout);
View* v1 = new StaticSizedView(gfx::Size(20, 10));
host_->AddChildView(v1);
View* v2 = new StaticSizedView(gfx::Size(10, 10));
host_->AddChildView(v2);
- EXPECT_EQ(gfx::Size(20, 20), layout_->GetPreferredSize(host_.get()));
+ EXPECT_EQ(gfx::Size(20, 20), layout->GetPreferredSize(host_.get()));
host_->SetBounds(0, 0, 20, 20);
- layout_->Layout(host_.get());
+ host_->Layout();
EXPECT_EQ(gfx::Rect(0, 0, 20, 10), v1->bounds());
EXPECT_EQ(gfx::Rect(0, 10, 20, 10), v2->bounds());
}
TEST_F(BoxLayoutTest, SetInsideBorderInsets) {
- layout_.reset(new BoxLayout(BoxLayout::kHorizontal, 10, 20, 0));
+ BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 10, 20, 0);
+ host_->SetLayoutManager(layout);
View* v1 = new StaticSizedView(gfx::Size(10, 20));
host_->AddChildView(v1);
View* v2 = new StaticSizedView(gfx::Size(10, 10));
host_->AddChildView(v2);
- EXPECT_EQ(gfx::Size(40, 60), layout_->GetPreferredSize(host_.get()));
+ EXPECT_EQ(gfx::Size(40, 60), layout->GetPreferredSize(host_.get()));
host_->SetBounds(0, 0, 40, 60);
- layout_->Layout(host_.get());
+ host_->Layout();
EXPECT_EQ(gfx::Rect(10, 20, 10, 20), v1->bounds());
EXPECT_EQ(gfx::Rect(20, 20, 10, 20), v2->bounds());
- layout_->set_inside_border_insets(
+ layout->set_inside_border_insets(
gfx::Insets(5, 10, 15, 20));
- EXPECT_EQ(gfx::Size(50, 40), layout_->GetPreferredSize(host_.get()));
+ EXPECT_EQ(gfx::Size(50, 40), layout->GetPreferredSize(host_.get()));
host_->SetBounds(0, 0, 50, 40);
- layout_->Layout(host_.get());
+ host_->Layout();
EXPECT_EQ(gfx::Rect(10, 5, 10, 20), v1->bounds());
EXPECT_EQ(gfx::Rect(20, 5, 10, 20), v2->bounds());
}
TEST_F(BoxLayoutTest, Spacing) {
- layout_.reset(new BoxLayout(BoxLayout::kHorizontal, 7, 7, 8));
+ BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 7, 7, 8);
+ host_->SetLayoutManager(layout);
View* v1 = new StaticSizedView(gfx::Size(10, 20));
host_->AddChildView(v1);
View* v2 = new StaticSizedView(gfx::Size(10, 20));
host_->AddChildView(v2);
- EXPECT_EQ(gfx::Size(42, 34), layout_->GetPreferredSize(host_.get()));
+ EXPECT_EQ(gfx::Size(42, 34), layout->GetPreferredSize(host_.get()));
host_->SetBounds(0, 0, 100, 100);
- layout_->Layout(host_.get());
+ host_->Layout();
EXPECT_EQ(gfx::Rect(7, 7, 10, 86), v1->bounds());
EXPECT_EQ(gfx::Rect(25, 7, 10, 86), v2->bounds());
}
TEST_F(BoxLayoutTest, Overflow) {
- layout_.reset(new BoxLayout(BoxLayout::kHorizontal, 0, 0, 0));
+ BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 0, 0, 0);
+ host_->SetLayoutManager(layout);
View* v1 = new StaticSizedView(gfx::Size(20, 20));
host_->AddChildView(v1);
View* v2 = new StaticSizedView(gfx::Size(10, 20));
// Overflows by positioning views at the start and truncating anything that
// doesn't fit.
- layout_->Layout(host_.get());
+ host_->Layout();
EXPECT_EQ(gfx::Rect(0, 0, 10, 10), v1->bounds());
EXPECT_EQ(gfx::Rect(0, 0, 0, 0), v2->bounds());
// All values of main axis alignment should overflow in the same manner.
- layout_->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_START);
- layout_->Layout(host_.get());
+ layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_START);
+ host_->Layout();
EXPECT_EQ(gfx::Rect(0, 0, 10, 10), v1->bounds());
EXPECT_EQ(gfx::Rect(0, 0, 0, 0), v2->bounds());
- layout_->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_CENTER);
- layout_->Layout(host_.get());
+ layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_CENTER);
+ host_->Layout();
EXPECT_EQ(gfx::Rect(0, 0, 10, 10), v1->bounds());
EXPECT_EQ(gfx::Rect(0, 0, 0, 0), v2->bounds());
- layout_->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_END);
- layout_->Layout(host_.get());
+ layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_END);
+ host_->Layout();
EXPECT_EQ(gfx::Rect(0, 0, 10, 10), v1->bounds());
EXPECT_EQ(gfx::Rect(0, 0, 0, 0), v2->bounds());
}
TEST_F(BoxLayoutTest, NoSpace) {
- layout_.reset(new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10));
+ BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10);
+ host_->SetLayoutManager(layout);
View* childView = new StaticSizedView(gfx::Size(20, 20));
host_->AddChildView(childView);
host_->SetBounds(0, 0, 10, 10);
- layout_->Layout(host_.get());
+ host_->Layout();
EXPECT_EQ(gfx::Rect(0, 0, 0, 0), childView->bounds());
}
TEST_F(BoxLayoutTest, InvisibleChild) {
- layout_.reset(new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10));
+ BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10);
+ host_->SetLayoutManager(layout);
View* v1 = new StaticSizedView(gfx::Size(20, 20));
v1->SetVisible(false);
host_->AddChildView(v1);
View* v2 = new StaticSizedView(gfx::Size(10, 10));
host_->AddChildView(v2);
- EXPECT_EQ(gfx::Size(30, 30), layout_->GetPreferredSize(host_.get()));
+ EXPECT_EQ(gfx::Size(30, 30), layout->GetPreferredSize(host_.get()));
host_->SetBounds(0, 0, 30, 30);
- layout_->Layout(host_.get());
+ host_->Layout();
EXPECT_EQ(gfx::Rect(10, 10, 10, 10), v2->bounds());
}
-TEST_F(BoxLayoutTest, MainAxisAlignmentFill) {
- layout_.reset(new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10));
- layout_->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_FILL);
-
- View* v1 = new StaticSizedView(gfx::Size(20, 20));
- host_->AddChildView(v1);
- View* v2 = new StaticSizedView(gfx::Size(10, 10));
- host_->AddChildView(v2);
- EXPECT_EQ(gfx::Size(60, 40), layout_->GetPreferredSize(host_.get()));
-
- host_->SetBounds(0, 0, 100, 40);
- layout_->Layout(host_.get());
- EXPECT_EQ(gfx::Rect(10, 10, 40, 20).ToString(), v1->bounds().ToString());
- EXPECT_EQ(gfx::Rect(60, 10, 30, 20).ToString(), v2->bounds().ToString());
-}
-
TEST_F(BoxLayoutTest, UseHeightForWidth) {
- layout_.reset(new BoxLayout(BoxLayout::kVertical, 0, 0, 0));
+ BoxLayout* layout = new BoxLayout(BoxLayout::kVertical, 0, 0, 0);
+ host_->SetLayoutManager(layout);
View* v1 = new StaticSizedView(gfx::Size(20, 10));
host_->AddChildView(v1);
- View* v2 = new ProportionallySizedView(2);
+ ProportionallySizedView* v2 = new ProportionallySizedView(2);
+ v2->set_preferred_width(10);
host_->AddChildView(v2);
- EXPECT_EQ(gfx::Size(20, 50), layout_->GetPreferredSize(host_.get()));
+ EXPECT_EQ(gfx::Size(20, 50), layout->GetPreferredSize(host_.get()));
host_->SetBounds(0, 0, 20, 50);
- layout_->Layout(host_.get());
+ host_->Layout();
EXPECT_EQ(gfx::Rect(0, 0, 20, 10), v1->bounds());
EXPECT_EQ(gfx::Rect(0, 10, 20, 40), v2->bounds());
- EXPECT_EQ(110, layout_->GetPreferredHeightForWidth(host_.get(), 50));
+ EXPECT_EQ(110, layout->GetPreferredHeightForWidth(host_.get(), 50));
+
+ // Test without horizontal stretching of the views.
+ layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_END);
+ EXPECT_EQ(gfx::Size(20, 30).ToString(),
+ layout->GetPreferredSize(host_.get()).ToString());
+
+ host_->SetBounds(0, 0, 20, 30);
+ host_->Layout();
+ EXPECT_EQ(gfx::Rect(0, 0, 20, 10), v1->bounds());
+ EXPECT_EQ(gfx::Rect(10, 10, 10, 20), v2->bounds());
+
+ EXPECT_EQ(30, layout->GetPreferredHeightForWidth(host_.get(), 50));
}
TEST_F(BoxLayoutTest, EmptyPreferredSize) {
}
TEST_F(BoxLayoutTest, MainAxisAlignmentHorizontal) {
- layout_.reset(new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10));
+ BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10);
+ host_->SetLayoutManager(layout);
View* v1 = new StaticSizedView(gfx::Size(20, 20));
host_->AddChildView(v1);
host_->SetBounds(0, 0, 100, 40);
// Align children to the horizontal start by default.
- layout_->Layout(host_.get());
+ host_->Layout();
EXPECT_EQ(gfx::Rect(10, 10, 20, 20).ToString(), v1->bounds().ToString());
EXPECT_EQ(gfx::Rect(40, 10, 10, 20).ToString(), v2->bounds().ToString());
// Ensure same results for MAIN_AXIS_ALIGNMENT_START.
- layout_->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_START);
- layout_->Layout(host_.get());
+ layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_START);
+ host_->Layout();
EXPECT_EQ(gfx::Rect(10, 10, 20, 20).ToString(), v1->bounds().ToString());
EXPECT_EQ(gfx::Rect(40, 10, 10, 20).ToString(), v2->bounds().ToString());
// Aligns children to the center horizontally.
- layout_->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_CENTER);
- layout_->Layout(host_.get());
+ layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_CENTER);
+ host_->Layout();
EXPECT_EQ(gfx::Rect(30, 10, 20, 20).ToString(), v1->bounds().ToString());
EXPECT_EQ(gfx::Rect(60, 10, 10, 20).ToString(), v2->bounds().ToString());
// Aligns children to the end of the host horizontally, accounting for the
// inside border spacing.
- layout_->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_END);
- layout_->Layout(host_.get());
+ layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_END);
+ host_->Layout();
EXPECT_EQ(gfx::Rect(50, 10, 20, 20).ToString(), v1->bounds().ToString());
EXPECT_EQ(gfx::Rect(80, 10, 10, 20).ToString(), v2->bounds().ToString());
}
TEST_F(BoxLayoutTest, MainAxisAlignmentVertical) {
- layout_.reset(new BoxLayout(BoxLayout::kVertical, 10, 10, 10));
+ BoxLayout* layout = new BoxLayout(BoxLayout::kVertical, 10, 10, 10);
+ host_->SetLayoutManager(layout);
View* v1 = new StaticSizedView(gfx::Size(20, 20));
host_->AddChildView(v1);
host_->SetBounds(0, 0, 40, 100);
// Align children to the vertical start by default.
- layout_->Layout(host_.get());
+ host_->Layout();
EXPECT_EQ(gfx::Rect(10, 10, 20, 20).ToString(), v1->bounds().ToString());
EXPECT_EQ(gfx::Rect(10, 40, 20, 10).ToString(), v2->bounds().ToString());
// Ensure same results for MAIN_AXIS_ALIGNMENT_START.
- layout_->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_START);
- layout_->Layout(host_.get());
+ layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_START);
+ host_->Layout();
EXPECT_EQ(gfx::Rect(10, 10, 20, 20).ToString(), v1->bounds().ToString());
EXPECT_EQ(gfx::Rect(10, 40, 20, 10).ToString(), v2->bounds().ToString());
// Aligns children to the center vertically.
- layout_->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_CENTER);
- layout_->Layout(host_.get());
+ layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_CENTER);
+ host_->Layout();
EXPECT_EQ(gfx::Rect(10, 30, 20, 20).ToString(), v1->bounds().ToString());
EXPECT_EQ(gfx::Rect(10, 60, 20, 10).ToString(), v2->bounds().ToString());
// Aligns children to the end of the host vertically, accounting for the
// inside border spacing.
- layout_->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_END);
- layout_->Layout(host_.get());
+ layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_END);
+ host_->Layout();
EXPECT_EQ(gfx::Rect(10, 50, 20, 20).ToString(), v1->bounds().ToString());
EXPECT_EQ(gfx::Rect(10, 80, 20, 10).ToString(), v2->bounds().ToString());
}
+TEST_F(BoxLayoutTest, CrossAxisAlignmentHorizontal) {
+ BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10);
+ host_->SetLayoutManager(layout);
+
+ View* v1 = new StaticSizedView(gfx::Size(20, 20));
+ host_->AddChildView(v1);
+ View* v2 = new StaticSizedView(gfx::Size(10, 10));
+ host_->AddChildView(v2);
+
+ host_->SetBounds(0, 0, 100, 60);
+
+ // Stretch children to fill the available height by default.
+ host_->Layout();
+ EXPECT_EQ(gfx::Rect(10, 10, 20, 40).ToString(), v1->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(40, 10, 10, 40).ToString(), v2->bounds().ToString());
+
+ // Ensure same results for CROSS_AXIS_ALIGNMENT_STRETCH.
+ layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_STRETCH);
+ host_->Layout();
+ EXPECT_EQ(gfx::Rect(10, 10, 20, 40).ToString(), v1->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(40, 10, 10, 40).ToString(), v2->bounds().ToString());
+
+ // Aligns children to the start vertically.
+ layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_START);
+ host_->Layout();
+ EXPECT_EQ(gfx::Rect(10, 10, 20, 20).ToString(), v1->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(40, 10, 10, 10).ToString(), v2->bounds().ToString());
+
+ // Aligns children to the center vertically.
+ layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_CENTER);
+ host_->Layout();
+ EXPECT_EQ(gfx::Rect(10, 20, 20, 20).ToString(), v1->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(40, 25, 10, 10).ToString(), v2->bounds().ToString());
+
+ // Aligns children to the end of the host vertically, accounting for the
+ // inside border spacing.
+ layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_END);
+ host_->Layout();
+ EXPECT_EQ(gfx::Rect(10, 30, 20, 20).ToString(), v1->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(40, 40, 10, 10).ToString(), v2->bounds().ToString());
+}
+
+TEST_F(BoxLayoutTest, CrossAxisAlignmentVertical) {
+ BoxLayout* layout = new BoxLayout(BoxLayout::kVertical, 10, 10, 10);
+ host_->SetLayoutManager(layout);
+
+ View* v1 = new StaticSizedView(gfx::Size(20, 20));
+ host_->AddChildView(v1);
+ View* v2 = new StaticSizedView(gfx::Size(10, 10));
+ host_->AddChildView(v2);
+
+ host_->SetBounds(0, 0, 60, 100);
+
+ // Stretch children to fill the available width by default.
+ host_->Layout();
+ EXPECT_EQ(gfx::Rect(10, 10, 40, 20).ToString(), v1->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(10, 40, 40, 10).ToString(), v2->bounds().ToString());
+
+ // Ensure same results for CROSS_AXIS_ALIGNMENT_STRETCH.
+ layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_STRETCH);
+ host_->Layout();
+ EXPECT_EQ(gfx::Rect(10, 10, 40, 20).ToString(), v1->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(10, 40, 40, 10).ToString(), v2->bounds().ToString());
+
+ // Aligns children to the start horizontally.
+ layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_START);
+ host_->Layout();
+ EXPECT_EQ(gfx::Rect(10, 10, 20, 20).ToString(), v1->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(10, 40, 10, 10).ToString(), v2->bounds().ToString());
+
+ // Aligns children to the center horizontally.
+ layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_CENTER);
+ host_->Layout();
+ EXPECT_EQ(gfx::Rect(20, 10, 20, 20).ToString(), v1->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(25, 40, 10, 10).ToString(), v2->bounds().ToString());
+
+ // Aligns children to the end of the host horizontally, accounting for the
+ // inside border spacing.
+ layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_END);
+ host_->Layout();
+ EXPECT_EQ(gfx::Rect(30, 10, 20, 20).ToString(), v1->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(40, 40, 10, 10).ToString(), v2->bounds().ToString());
+}
+
+TEST_F(BoxLayoutTest, FlexAll) {
+ BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10);
+ host_->SetLayoutManager(layout);
+ layout->SetDefaultFlex(1);
+
+ View* v1 = new StaticSizedView(gfx::Size(20, 20));
+ host_->AddChildView(v1);
+ View* v2 = new StaticSizedView(gfx::Size(10, 10));
+ host_->AddChildView(v2);
+ View* v3 = new StaticSizedView(gfx::Size(30, 30));
+ host_->AddChildView(v3);
+ EXPECT_EQ(gfx::Size(100, 50), layout->GetPreferredSize(host_.get()));
+
+ host_->SetBounds(0, 0, 120, 50);
+ host_->Layout();
+ EXPECT_EQ(gfx::Rect(10, 10, 27, 30).ToString(), v1->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(47, 10, 16, 30).ToString(), v2->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(73, 10, 37, 30).ToString(), v3->bounds().ToString());
+}
+
+TEST_F(BoxLayoutTest, FlexGrowVertical) {
+ BoxLayout* layout = new BoxLayout(BoxLayout::kVertical, 10, 10, 10);
+ host_->SetLayoutManager(layout);
+
+ View* v1 = new StaticSizedView(gfx::Size(20, 20));
+ host_->AddChildView(v1);
+ View* v2 = new StaticSizedView(gfx::Size(10, 10));
+ host_->AddChildView(v2);
+ View* v3 = new StaticSizedView(gfx::Size(30, 30));
+ host_->AddChildView(v3);
+
+ host_->SetBounds(0, 0, 50, 130);
+
+ // Views don't fill the available space by default.
+ host_->Layout();
+ EXPECT_EQ(gfx::Rect(10, 10, 30, 20).ToString(), v1->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(10, 40, 30, 10).ToString(), v2->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(10, 60, 30, 30).ToString(), v3->bounds().ToString());
+
+ std::vector<BoxLayout::MainAxisAlignment> main_alignments;
+ main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_START);
+ main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_CENTER);
+ main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_END);
+
+ for (size_t i = 0; i < main_alignments.size(); ++i) {
+ layout->set_main_axis_alignment(main_alignments[i]);
+
+ // Set the first view to consume all free space.
+ layout->SetFlexForView(v1, 1);
+ layout->ClearFlexForView(v2);
+ layout->ClearFlexForView(v3);
+ host_->Layout();
+ EXPECT_EQ(gfx::Rect(10, 10, 30, 50).ToString(), v1->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(10, 70, 30, 10).ToString(), v2->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(10, 90, 30, 30).ToString(), v3->bounds().ToString());
+
+ // Set the third view to take 2/3s of the free space and leave the first
+ // view
+ // with 1/3.
+ layout->SetFlexForView(v3, 2);
+ host_->Layout();
+ EXPECT_EQ(gfx::Rect(10, 10, 30, 30).ToString(), v1->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(10, 50, 30, 10).ToString(), v2->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(10, 70, 30, 50).ToString(), v3->bounds().ToString());
+
+ // Clear the previously set flex values and set the second view to take all
+ // the free space.
+ layout->ClearFlexForView(v1);
+ layout->SetFlexForView(v2, 1);
+ layout->ClearFlexForView(v3);
+ host_->Layout();
+ EXPECT_EQ(gfx::Rect(10, 10, 30, 20).ToString(), v1->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(10, 40, 30, 40).ToString(), v2->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(10, 90, 30, 30).ToString(), v3->bounds().ToString());
+ }
+}
+
+TEST_F(BoxLayoutTest, FlexGrowHorizontalWithRemainder) {
+ BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 0, 0, 0);
+ host_->SetLayoutManager(layout);
+ layout->SetDefaultFlex(1);
+ std::vector<View*> views;
+ for (int i = 0; i < 5; ++i) {
+ View* view = new StaticSizedView(gfx::Size(10, 10));
+ views.push_back(view);
+ host_->AddChildView(view);
+ }
+
+ EXPECT_EQ(gfx::Size(50, 10), layout->GetPreferredSize(host_.get()));
+
+ host_->SetBounds(0, 0, 52, 10);
+ host_->Layout();
+ // The 2nd and 4th views should have an extra pixel as they correspond to 20.8
+ // and 41.6 which round up.
+ EXPECT_EQ(gfx::Rect(0, 0, 10, 10).ToString(), views[0]->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(10, 0, 11, 10).ToString(), views[1]->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(21, 0, 10, 10).ToString(), views[2]->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(31, 0, 11, 10).ToString(), views[3]->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(42, 0, 10, 10).ToString(), views[4]->bounds().ToString());
+}
+
+TEST_F(BoxLayoutTest, FlexGrowHorizontalWithRemainder2) {
+ BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 0, 0, 0);
+ host_->SetLayoutManager(layout);
+ layout->SetDefaultFlex(1);
+ std::vector<View*> views;
+ for (int i = 0; i < 4; ++i) {
+ View* view = new StaticSizedView(gfx::Size(1, 10));
+ views.push_back(view);
+ host_->AddChildView(view);
+ }
+
+ EXPECT_EQ(gfx::Size(4, 10), layout->GetPreferredSize(host_.get()));
+
+ host_->SetBounds(0, 0, 10, 10);
+ host_->Layout();
+ // The 1st and 3rd views should have an extra pixel as they correspond to 2.5
+ // and 7.5 which round up.
+ EXPECT_EQ(gfx::Rect(0, 0, 3, 10).ToString(), views[0]->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(3, 0, 2, 10).ToString(), views[1]->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(5, 0, 3, 10).ToString(), views[2]->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(8, 0, 2, 10).ToString(), views[3]->bounds().ToString());
+}
+
+TEST_F(BoxLayoutTest, FlexShrinkHorizontal) {
+ BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10);
+ host_->SetLayoutManager(layout);
+
+ View* v1 = new StaticSizedView(gfx::Size(20, 20));
+ host_->AddChildView(v1);
+ View* v2 = new StaticSizedView(gfx::Size(10, 10));
+ host_->AddChildView(v2);
+ View* v3 = new StaticSizedView(gfx::Size(30, 30));
+ host_->AddChildView(v3);
+
+ host_->SetBounds(0, 0, 85, 50);
+
+ // Truncate width by default.
+ host_->Layout();
+ EXPECT_EQ(gfx::Rect(10, 10, 20, 30).ToString(), v1->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(40, 10, 10, 30).ToString(), v2->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(60, 10, 15, 30).ToString(), v3->bounds().ToString());
+
+ std::vector<BoxLayout::MainAxisAlignment> main_alignments;
+ main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_START);
+ main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_CENTER);
+ main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_END);
+
+ for (size_t i = 0; i < main_alignments.size(); ++i) {
+ layout->set_main_axis_alignment(main_alignments[i]);
+
+ // Set the first view to shrink as much as necessary.
+ layout->SetFlexForView(v1, 1);
+ layout->ClearFlexForView(v2);
+ layout->ClearFlexForView(v3);
+ host_->Layout();
+ EXPECT_EQ(gfx::Rect(10, 10, 5, 30).ToString(), v1->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(25, 10, 10, 30).ToString(), v2->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(45, 10, 30, 30).ToString(), v3->bounds().ToString());
+
+ // Set the third view to shrink 2/3s of the free space and leave the first
+ // view with 1/3.
+ layout->SetFlexForView(v3, 2);
+ host_->Layout();
+ EXPECT_EQ(gfx::Rect(10, 10, 15, 30).ToString(), v1->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(35, 10, 10, 30).ToString(), v2->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(55, 10, 20, 30).ToString(), v3->bounds().ToString());
+
+ // Clear the previously set flex values and set the second view to take all
+ // the free space with MAIN_AXIS_ALIGNMENT_END set. This causes the second
+ // view to shrink to zero and the third view still doesn't fit so it
+ // overflows.
+ layout->ClearFlexForView(v1);
+ layout->SetFlexForView(v2, 2);
+ layout->ClearFlexForView(v3);
+ host_->Layout();
+ EXPECT_EQ(gfx::Rect(10, 10, 20, 30).ToString(), v1->bounds().ToString());
+ // Conceptually this view is at 10, 40, 0, 0.
+ EXPECT_EQ(gfx::Rect(0, 0, 0, 0).ToString(), v2->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(50, 10, 25, 30).ToString(), v3->bounds().ToString());
+ }
+}
+
+TEST_F(BoxLayoutTest, FlexShrinkVerticalWithRemainder) {
+ BoxLayout* layout = new BoxLayout(BoxLayout::kVertical, 0, 0, 0);
+ host_->SetLayoutManager(layout);
+ View* v1 = new StaticSizedView(gfx::Size(20, 10));
+ host_->AddChildView(v1);
+ View* v2 = new StaticSizedView(gfx::Size(20, 20));
+ host_->AddChildView(v2);
+ View* v3 = new StaticSizedView(gfx::Size(20, 10));
+ host_->AddChildView(v3);
+ host_->SetBounds(0, 0, 20, 20);
+
+ std::vector<BoxLayout::MainAxisAlignment> main_alignments;
+ main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_START);
+ main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_CENTER);
+ main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_END);
+
+ for (size_t i = 0; i < main_alignments.size(); ++i) {
+ layout->set_main_axis_alignment(main_alignments[i]);
+
+ // The first view shrinks by 1/3 of the excess, the second view shrinks by
+ // 2/3 of the excess and the third view should maintain its preferred size.
+ layout->SetFlexForView(v1, 1);
+ layout->SetFlexForView(v2, 2);
+ layout->ClearFlexForView(v3);
+ host_->Layout();
+ EXPECT_EQ(gfx::Rect(0, 0, 20, 3).ToString(), v1->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(0, 3, 20, 7).ToString(), v2->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(0, 10, 20, 10).ToString(), v3->bounds().ToString());
+
+ // The second view shrinks to 2/3 of the excess, the third view shrinks to
+ // 1/3 of the excess and the first view should maintain its preferred size.
+ layout->ClearFlexForView(v1);
+ layout->SetFlexForView(v2, 2);
+ layout->SetFlexForView(v3, 1);
+ host_->Layout();
+ EXPECT_EQ(gfx::Rect(0, 0, 20, 10).ToString(), v1->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(0, 10, 20, 7).ToString(), v2->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(0, 17, 20, 3).ToString(), v3->bounds().ToString());
+
+ // Each view shrinks equally to fit within the available space.
+ layout->SetFlexForView(v1, 1);
+ layout->SetFlexForView(v2, 1);
+ layout->SetFlexForView(v3, 1);
+ host_->Layout();
+ EXPECT_EQ(gfx::Rect(0, 0, 20, 3).ToString(), v1->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(0, 3, 20, 14).ToString(), v2->bounds().ToString());
+ EXPECT_EQ(gfx::Rect(0, 17, 20, 3).ToString(), v3->bounds().ToString());
+ }
+}
+
} // namespace views