1// Copyright (c) 2012 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#include "ui/views/layout/box_layout.h" 6 7#include "testing/gtest/include/gtest/gtest.h" 8#include "ui/views/test/test_views.h" 9#include "ui/views/view.h" 10 11namespace views { 12 13namespace { 14 15class BoxLayoutTest : public testing::Test { 16 public: 17 virtual void SetUp() OVERRIDE { 18 host_.reset(new View); 19 } 20 21 scoped_ptr<View> host_; 22}; 23 24} // namespace 25 26TEST_F(BoxLayoutTest, Empty) { 27 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 10, 10, 20); 28 host_->SetLayoutManager(layout); 29 EXPECT_EQ(gfx::Size(20, 20), layout->GetPreferredSize(host_.get())); 30} 31 32TEST_F(BoxLayoutTest, AlignmentHorizontal) { 33 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 0, 0, 0); 34 host_->SetLayoutManager(layout); 35 View* v1 = new StaticSizedView(gfx::Size(10, 20)); 36 host_->AddChildView(v1); 37 View* v2 = new StaticSizedView(gfx::Size(10, 10)); 38 host_->AddChildView(v2); 39 EXPECT_EQ(gfx::Size(20, 20), layout->GetPreferredSize(host_.get())); 40 host_->SetBounds(0, 0, 20, 20); 41 host_->Layout(); 42 EXPECT_EQ(gfx::Rect(0, 0, 10, 20), v1->bounds()); 43 EXPECT_EQ(gfx::Rect(10, 0, 10, 20), v2->bounds()); 44} 45 46TEST_F(BoxLayoutTest, AlignmentVertical) { 47 BoxLayout* layout = new BoxLayout(BoxLayout::kVertical, 0, 0, 0); 48 host_->SetLayoutManager(layout); 49 View* v1 = new StaticSizedView(gfx::Size(20, 10)); 50 host_->AddChildView(v1); 51 View* v2 = new StaticSizedView(gfx::Size(10, 10)); 52 host_->AddChildView(v2); 53 EXPECT_EQ(gfx::Size(20, 20), layout->GetPreferredSize(host_.get())); 54 host_->SetBounds(0, 0, 20, 20); 55 host_->Layout(); 56 EXPECT_EQ(gfx::Rect(0, 0, 20, 10), v1->bounds()); 57 EXPECT_EQ(gfx::Rect(0, 10, 20, 10), v2->bounds()); 58} 59 60TEST_F(BoxLayoutTest, SetInsideBorderInsets) { 61 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 10, 20, 0); 62 host_->SetLayoutManager(layout); 63 View* v1 = new StaticSizedView(gfx::Size(10, 20)); 64 host_->AddChildView(v1); 65 View* v2 = new StaticSizedView(gfx::Size(10, 10)); 66 host_->AddChildView(v2); 67 EXPECT_EQ(gfx::Size(40, 60), layout->GetPreferredSize(host_.get())); 68 host_->SetBounds(0, 0, 40, 60); 69 host_->Layout(); 70 EXPECT_EQ(gfx::Rect(10, 20, 10, 20), v1->bounds()); 71 EXPECT_EQ(gfx::Rect(20, 20, 10, 20), v2->bounds()); 72 73 layout->set_inside_border_insets( 74 gfx::Insets(5, 10, 15, 20)); 75 EXPECT_EQ(gfx::Size(50, 40), layout->GetPreferredSize(host_.get())); 76 host_->SetBounds(0, 0, 50, 40); 77 host_->Layout(); 78 EXPECT_EQ(gfx::Rect(10, 5, 10, 20), v1->bounds()); 79 EXPECT_EQ(gfx::Rect(20, 5, 10, 20), v2->bounds()); 80} 81 82TEST_F(BoxLayoutTest, Spacing) { 83 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 7, 7, 8); 84 host_->SetLayoutManager(layout); 85 View* v1 = new StaticSizedView(gfx::Size(10, 20)); 86 host_->AddChildView(v1); 87 View* v2 = new StaticSizedView(gfx::Size(10, 20)); 88 host_->AddChildView(v2); 89 EXPECT_EQ(gfx::Size(42, 34), layout->GetPreferredSize(host_.get())); 90 host_->SetBounds(0, 0, 100, 100); 91 host_->Layout(); 92 EXPECT_EQ(gfx::Rect(7, 7, 10, 86), v1->bounds()); 93 EXPECT_EQ(gfx::Rect(25, 7, 10, 86), v2->bounds()); 94} 95 96TEST_F(BoxLayoutTest, Overflow) { 97 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 0, 0, 0); 98 host_->SetLayoutManager(layout); 99 View* v1 = new StaticSizedView(gfx::Size(20, 20)); 100 host_->AddChildView(v1); 101 View* v2 = new StaticSizedView(gfx::Size(10, 20)); 102 host_->AddChildView(v2); 103 host_->SetBounds(0, 0, 10, 10); 104 105 // Overflows by positioning views at the start and truncating anything that 106 // doesn't fit. 107 host_->Layout(); 108 EXPECT_EQ(gfx::Rect(0, 0, 10, 10), v1->bounds()); 109 EXPECT_EQ(gfx::Rect(0, 0, 0, 0), v2->bounds()); 110 111 // All values of main axis alignment should overflow in the same manner. 112 layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_START); 113 host_->Layout(); 114 EXPECT_EQ(gfx::Rect(0, 0, 10, 10), v1->bounds()); 115 EXPECT_EQ(gfx::Rect(0, 0, 0, 0), v2->bounds()); 116 117 layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_CENTER); 118 host_->Layout(); 119 EXPECT_EQ(gfx::Rect(0, 0, 10, 10), v1->bounds()); 120 EXPECT_EQ(gfx::Rect(0, 0, 0, 0), v2->bounds()); 121 122 layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_END); 123 host_->Layout(); 124 EXPECT_EQ(gfx::Rect(0, 0, 10, 10), v1->bounds()); 125 EXPECT_EQ(gfx::Rect(0, 0, 0, 0), v2->bounds()); 126} 127 128TEST_F(BoxLayoutTest, NoSpace) { 129 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10); 130 host_->SetLayoutManager(layout); 131 View* childView = new StaticSizedView(gfx::Size(20, 20)); 132 host_->AddChildView(childView); 133 host_->SetBounds(0, 0, 10, 10); 134 host_->Layout(); 135 EXPECT_EQ(gfx::Rect(0, 0, 0, 0), childView->bounds()); 136} 137 138TEST_F(BoxLayoutTest, InvisibleChild) { 139 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10); 140 host_->SetLayoutManager(layout); 141 View* v1 = new StaticSizedView(gfx::Size(20, 20)); 142 v1->SetVisible(false); 143 host_->AddChildView(v1); 144 View* v2 = new StaticSizedView(gfx::Size(10, 10)); 145 host_->AddChildView(v2); 146 EXPECT_EQ(gfx::Size(30, 30), layout->GetPreferredSize(host_.get())); 147 host_->SetBounds(0, 0, 30, 30); 148 host_->Layout(); 149 EXPECT_EQ(gfx::Rect(10, 10, 10, 10), v2->bounds()); 150} 151 152TEST_F(BoxLayoutTest, UseHeightForWidth) { 153 BoxLayout* layout = new BoxLayout(BoxLayout::kVertical, 0, 0, 0); 154 host_->SetLayoutManager(layout); 155 View* v1 = new StaticSizedView(gfx::Size(20, 10)); 156 host_->AddChildView(v1); 157 ProportionallySizedView* v2 = new ProportionallySizedView(2); 158 v2->set_preferred_width(10); 159 host_->AddChildView(v2); 160 EXPECT_EQ(gfx::Size(20, 50), layout->GetPreferredSize(host_.get())); 161 162 host_->SetBounds(0, 0, 20, 50); 163 host_->Layout(); 164 EXPECT_EQ(gfx::Rect(0, 0, 20, 10), v1->bounds()); 165 EXPECT_EQ(gfx::Rect(0, 10, 20, 40), v2->bounds()); 166 167 EXPECT_EQ(110, layout->GetPreferredHeightForWidth(host_.get(), 50)); 168 169 // Test without horizontal stretching of the views. 170 layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_END); 171 EXPECT_EQ(gfx::Size(20, 30).ToString(), 172 layout->GetPreferredSize(host_.get()).ToString()); 173 174 host_->SetBounds(0, 0, 20, 30); 175 host_->Layout(); 176 EXPECT_EQ(gfx::Rect(0, 0, 20, 10), v1->bounds()); 177 EXPECT_EQ(gfx::Rect(10, 10, 10, 20), v2->bounds()); 178 179 EXPECT_EQ(30, layout->GetPreferredHeightForWidth(host_.get(), 50)); 180} 181 182TEST_F(BoxLayoutTest, EmptyPreferredSize) { 183 for (size_t i = 0; i < 2; i++) { 184 BoxLayout::Orientation orientation = i == 0 ? BoxLayout::kHorizontal : 185 BoxLayout::kVertical; 186 host_->RemoveAllChildViews(true); 187 host_->SetLayoutManager(new BoxLayout(orientation, 0, 0, 5)); 188 View* v1 = new StaticSizedView(gfx::Size()); 189 host_->AddChildView(v1); 190 View* v2 = new StaticSizedView(gfx::Size(10, 10)); 191 host_->AddChildView(v2); 192 host_->SizeToPreferredSize(); 193 host_->Layout(); 194 195 EXPECT_EQ(v2->GetPreferredSize().width(), host_->bounds().width()) << i; 196 EXPECT_EQ(v2->GetPreferredSize().height(), host_->bounds().height()) << i; 197 EXPECT_EQ(v1->GetPreferredSize().width(), v1->bounds().width()) << i; 198 EXPECT_EQ(v1->GetPreferredSize().height(), v1->bounds().height()) << i; 199 EXPECT_EQ(v2->GetPreferredSize().width(), v2->bounds().width()) << i; 200 EXPECT_EQ(v2->GetPreferredSize().height(), v2->bounds().height()) << i; 201 } 202} 203 204TEST_F(BoxLayoutTest, MainAxisAlignmentHorizontal) { 205 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10); 206 host_->SetLayoutManager(layout); 207 208 View* v1 = new StaticSizedView(gfx::Size(20, 20)); 209 host_->AddChildView(v1); 210 View* v2 = new StaticSizedView(gfx::Size(10, 10)); 211 host_->AddChildView(v2); 212 213 host_->SetBounds(0, 0, 100, 40); 214 215 // Align children to the horizontal start by default. 216 host_->Layout(); 217 EXPECT_EQ(gfx::Rect(10, 10, 20, 20).ToString(), v1->bounds().ToString()); 218 EXPECT_EQ(gfx::Rect(40, 10, 10, 20).ToString(), v2->bounds().ToString()); 219 220 // Ensure same results for MAIN_AXIS_ALIGNMENT_START. 221 layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_START); 222 host_->Layout(); 223 EXPECT_EQ(gfx::Rect(10, 10, 20, 20).ToString(), v1->bounds().ToString()); 224 EXPECT_EQ(gfx::Rect(40, 10, 10, 20).ToString(), v2->bounds().ToString()); 225 226 // Aligns children to the center horizontally. 227 layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_CENTER); 228 host_->Layout(); 229 EXPECT_EQ(gfx::Rect(30, 10, 20, 20).ToString(), v1->bounds().ToString()); 230 EXPECT_EQ(gfx::Rect(60, 10, 10, 20).ToString(), v2->bounds().ToString()); 231 232 // Aligns children to the end of the host horizontally, accounting for the 233 // inside border spacing. 234 layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_END); 235 host_->Layout(); 236 EXPECT_EQ(gfx::Rect(50, 10, 20, 20).ToString(), v1->bounds().ToString()); 237 EXPECT_EQ(gfx::Rect(80, 10, 10, 20).ToString(), v2->bounds().ToString()); 238} 239 240TEST_F(BoxLayoutTest, MainAxisAlignmentVertical) { 241 BoxLayout* layout = new BoxLayout(BoxLayout::kVertical, 10, 10, 10); 242 host_->SetLayoutManager(layout); 243 244 View* v1 = new StaticSizedView(gfx::Size(20, 20)); 245 host_->AddChildView(v1); 246 View* v2 = new StaticSizedView(gfx::Size(10, 10)); 247 host_->AddChildView(v2); 248 249 host_->SetBounds(0, 0, 40, 100); 250 251 // Align children to the vertical start by default. 252 host_->Layout(); 253 EXPECT_EQ(gfx::Rect(10, 10, 20, 20).ToString(), v1->bounds().ToString()); 254 EXPECT_EQ(gfx::Rect(10, 40, 20, 10).ToString(), v2->bounds().ToString()); 255 256 // Ensure same results for MAIN_AXIS_ALIGNMENT_START. 257 layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_START); 258 host_->Layout(); 259 EXPECT_EQ(gfx::Rect(10, 10, 20, 20).ToString(), v1->bounds().ToString()); 260 EXPECT_EQ(gfx::Rect(10, 40, 20, 10).ToString(), v2->bounds().ToString()); 261 262 // Aligns children to the center vertically. 263 layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_CENTER); 264 host_->Layout(); 265 EXPECT_EQ(gfx::Rect(10, 30, 20, 20).ToString(), v1->bounds().ToString()); 266 EXPECT_EQ(gfx::Rect(10, 60, 20, 10).ToString(), v2->bounds().ToString()); 267 268 // Aligns children to the end of the host vertically, accounting for the 269 // inside border spacing. 270 layout->set_main_axis_alignment(BoxLayout::MAIN_AXIS_ALIGNMENT_END); 271 host_->Layout(); 272 EXPECT_EQ(gfx::Rect(10, 50, 20, 20).ToString(), v1->bounds().ToString()); 273 EXPECT_EQ(gfx::Rect(10, 80, 20, 10).ToString(), v2->bounds().ToString()); 274} 275 276TEST_F(BoxLayoutTest, CrossAxisAlignmentHorizontal) { 277 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10); 278 host_->SetLayoutManager(layout); 279 280 View* v1 = new StaticSizedView(gfx::Size(20, 20)); 281 host_->AddChildView(v1); 282 View* v2 = new StaticSizedView(gfx::Size(10, 10)); 283 host_->AddChildView(v2); 284 285 host_->SetBounds(0, 0, 100, 60); 286 287 // Stretch children to fill the available height by default. 288 host_->Layout(); 289 EXPECT_EQ(gfx::Rect(10, 10, 20, 40).ToString(), v1->bounds().ToString()); 290 EXPECT_EQ(gfx::Rect(40, 10, 10, 40).ToString(), v2->bounds().ToString()); 291 292 // Ensure same results for CROSS_AXIS_ALIGNMENT_STRETCH. 293 layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_STRETCH); 294 host_->Layout(); 295 EXPECT_EQ(gfx::Rect(10, 10, 20, 40).ToString(), v1->bounds().ToString()); 296 EXPECT_EQ(gfx::Rect(40, 10, 10, 40).ToString(), v2->bounds().ToString()); 297 298 // Aligns children to the start vertically. 299 layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_START); 300 host_->Layout(); 301 EXPECT_EQ(gfx::Rect(10, 10, 20, 20).ToString(), v1->bounds().ToString()); 302 EXPECT_EQ(gfx::Rect(40, 10, 10, 10).ToString(), v2->bounds().ToString()); 303 304 // Aligns children to the center vertically. 305 layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_CENTER); 306 host_->Layout(); 307 EXPECT_EQ(gfx::Rect(10, 20, 20, 20).ToString(), v1->bounds().ToString()); 308 EXPECT_EQ(gfx::Rect(40, 25, 10, 10).ToString(), v2->bounds().ToString()); 309 310 // Aligns children to the end of the host vertically, accounting for the 311 // inside border spacing. 312 layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_END); 313 host_->Layout(); 314 EXPECT_EQ(gfx::Rect(10, 30, 20, 20).ToString(), v1->bounds().ToString()); 315 EXPECT_EQ(gfx::Rect(40, 40, 10, 10).ToString(), v2->bounds().ToString()); 316} 317 318TEST_F(BoxLayoutTest, CrossAxisAlignmentVertical) { 319 BoxLayout* layout = new BoxLayout(BoxLayout::kVertical, 10, 10, 10); 320 host_->SetLayoutManager(layout); 321 322 View* v1 = new StaticSizedView(gfx::Size(20, 20)); 323 host_->AddChildView(v1); 324 View* v2 = new StaticSizedView(gfx::Size(10, 10)); 325 host_->AddChildView(v2); 326 327 host_->SetBounds(0, 0, 60, 100); 328 329 // Stretch children to fill the available width by default. 330 host_->Layout(); 331 EXPECT_EQ(gfx::Rect(10, 10, 40, 20).ToString(), v1->bounds().ToString()); 332 EXPECT_EQ(gfx::Rect(10, 40, 40, 10).ToString(), v2->bounds().ToString()); 333 334 // Ensure same results for CROSS_AXIS_ALIGNMENT_STRETCH. 335 layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_STRETCH); 336 host_->Layout(); 337 EXPECT_EQ(gfx::Rect(10, 10, 40, 20).ToString(), v1->bounds().ToString()); 338 EXPECT_EQ(gfx::Rect(10, 40, 40, 10).ToString(), v2->bounds().ToString()); 339 340 // Aligns children to the start horizontally. 341 layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_START); 342 host_->Layout(); 343 EXPECT_EQ(gfx::Rect(10, 10, 20, 20).ToString(), v1->bounds().ToString()); 344 EXPECT_EQ(gfx::Rect(10, 40, 10, 10).ToString(), v2->bounds().ToString()); 345 346 // Aligns children to the center horizontally. 347 layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_CENTER); 348 host_->Layout(); 349 EXPECT_EQ(gfx::Rect(20, 10, 20, 20).ToString(), v1->bounds().ToString()); 350 EXPECT_EQ(gfx::Rect(25, 40, 10, 10).ToString(), v2->bounds().ToString()); 351 352 // Aligns children to the end of the host horizontally, accounting for the 353 // inside border spacing. 354 layout->set_cross_axis_alignment(BoxLayout::CROSS_AXIS_ALIGNMENT_END); 355 host_->Layout(); 356 EXPECT_EQ(gfx::Rect(30, 10, 20, 20).ToString(), v1->bounds().ToString()); 357 EXPECT_EQ(gfx::Rect(40, 40, 10, 10).ToString(), v2->bounds().ToString()); 358} 359 360TEST_F(BoxLayoutTest, FlexAll) { 361 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10); 362 host_->SetLayoutManager(layout); 363 layout->SetDefaultFlex(1); 364 365 View* v1 = new StaticSizedView(gfx::Size(20, 20)); 366 host_->AddChildView(v1); 367 View* v2 = new StaticSizedView(gfx::Size(10, 10)); 368 host_->AddChildView(v2); 369 View* v3 = new StaticSizedView(gfx::Size(30, 30)); 370 host_->AddChildView(v3); 371 EXPECT_EQ(gfx::Size(100, 50), layout->GetPreferredSize(host_.get())); 372 373 host_->SetBounds(0, 0, 120, 50); 374 host_->Layout(); 375 EXPECT_EQ(gfx::Rect(10, 10, 27, 30).ToString(), v1->bounds().ToString()); 376 EXPECT_EQ(gfx::Rect(47, 10, 16, 30).ToString(), v2->bounds().ToString()); 377 EXPECT_EQ(gfx::Rect(73, 10, 37, 30).ToString(), v3->bounds().ToString()); 378} 379 380TEST_F(BoxLayoutTest, FlexGrowVertical) { 381 BoxLayout* layout = new BoxLayout(BoxLayout::kVertical, 10, 10, 10); 382 host_->SetLayoutManager(layout); 383 384 View* v1 = new StaticSizedView(gfx::Size(20, 20)); 385 host_->AddChildView(v1); 386 View* v2 = new StaticSizedView(gfx::Size(10, 10)); 387 host_->AddChildView(v2); 388 View* v3 = new StaticSizedView(gfx::Size(30, 30)); 389 host_->AddChildView(v3); 390 391 host_->SetBounds(0, 0, 50, 130); 392 393 // Views don't fill the available space by default. 394 host_->Layout(); 395 EXPECT_EQ(gfx::Rect(10, 10, 30, 20).ToString(), v1->bounds().ToString()); 396 EXPECT_EQ(gfx::Rect(10, 40, 30, 10).ToString(), v2->bounds().ToString()); 397 EXPECT_EQ(gfx::Rect(10, 60, 30, 30).ToString(), v3->bounds().ToString()); 398 399 std::vector<BoxLayout::MainAxisAlignment> main_alignments; 400 main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_START); 401 main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_CENTER); 402 main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_END); 403 404 for (size_t i = 0; i < main_alignments.size(); ++i) { 405 layout->set_main_axis_alignment(main_alignments[i]); 406 407 // Set the first view to consume all free space. 408 layout->SetFlexForView(v1, 1); 409 layout->ClearFlexForView(v2); 410 layout->ClearFlexForView(v3); 411 host_->Layout(); 412 EXPECT_EQ(gfx::Rect(10, 10, 30, 50).ToString(), v1->bounds().ToString()); 413 EXPECT_EQ(gfx::Rect(10, 70, 30, 10).ToString(), v2->bounds().ToString()); 414 EXPECT_EQ(gfx::Rect(10, 90, 30, 30).ToString(), v3->bounds().ToString()); 415 416 // Set the third view to take 2/3s of the free space and leave the first 417 // view 418 // with 1/3. 419 layout->SetFlexForView(v3, 2); 420 host_->Layout(); 421 EXPECT_EQ(gfx::Rect(10, 10, 30, 30).ToString(), v1->bounds().ToString()); 422 EXPECT_EQ(gfx::Rect(10, 50, 30, 10).ToString(), v2->bounds().ToString()); 423 EXPECT_EQ(gfx::Rect(10, 70, 30, 50).ToString(), v3->bounds().ToString()); 424 425 // Clear the previously set flex values and set the second view to take all 426 // the free space. 427 layout->ClearFlexForView(v1); 428 layout->SetFlexForView(v2, 1); 429 layout->ClearFlexForView(v3); 430 host_->Layout(); 431 EXPECT_EQ(gfx::Rect(10, 10, 30, 20).ToString(), v1->bounds().ToString()); 432 EXPECT_EQ(gfx::Rect(10, 40, 30, 40).ToString(), v2->bounds().ToString()); 433 EXPECT_EQ(gfx::Rect(10, 90, 30, 30).ToString(), v3->bounds().ToString()); 434 } 435} 436 437TEST_F(BoxLayoutTest, FlexGrowHorizontalWithRemainder) { 438 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 0, 0, 0); 439 host_->SetLayoutManager(layout); 440 layout->SetDefaultFlex(1); 441 std::vector<View*> views; 442 for (int i = 0; i < 5; ++i) { 443 View* view = new StaticSizedView(gfx::Size(10, 10)); 444 views.push_back(view); 445 host_->AddChildView(view); 446 } 447 448 EXPECT_EQ(gfx::Size(50, 10), layout->GetPreferredSize(host_.get())); 449 450 host_->SetBounds(0, 0, 52, 10); 451 host_->Layout(); 452 // The 2nd and 4th views should have an extra pixel as they correspond to 20.8 453 // and 41.6 which round up. 454 EXPECT_EQ(gfx::Rect(0, 0, 10, 10).ToString(), views[0]->bounds().ToString()); 455 EXPECT_EQ(gfx::Rect(10, 0, 11, 10).ToString(), views[1]->bounds().ToString()); 456 EXPECT_EQ(gfx::Rect(21, 0, 10, 10).ToString(), views[2]->bounds().ToString()); 457 EXPECT_EQ(gfx::Rect(31, 0, 11, 10).ToString(), views[3]->bounds().ToString()); 458 EXPECT_EQ(gfx::Rect(42, 0, 10, 10).ToString(), views[4]->bounds().ToString()); 459} 460 461TEST_F(BoxLayoutTest, FlexGrowHorizontalWithRemainder2) { 462 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 0, 0, 0); 463 host_->SetLayoutManager(layout); 464 layout->SetDefaultFlex(1); 465 std::vector<View*> views; 466 for (int i = 0; i < 4; ++i) { 467 View* view = new StaticSizedView(gfx::Size(1, 10)); 468 views.push_back(view); 469 host_->AddChildView(view); 470 } 471 472 EXPECT_EQ(gfx::Size(4, 10), layout->GetPreferredSize(host_.get())); 473 474 host_->SetBounds(0, 0, 10, 10); 475 host_->Layout(); 476 // The 1st and 3rd views should have an extra pixel as they correspond to 2.5 477 // and 7.5 which round up. 478 EXPECT_EQ(gfx::Rect(0, 0, 3, 10).ToString(), views[0]->bounds().ToString()); 479 EXPECT_EQ(gfx::Rect(3, 0, 2, 10).ToString(), views[1]->bounds().ToString()); 480 EXPECT_EQ(gfx::Rect(5, 0, 3, 10).ToString(), views[2]->bounds().ToString()); 481 EXPECT_EQ(gfx::Rect(8, 0, 2, 10).ToString(), views[3]->bounds().ToString()); 482} 483 484TEST_F(BoxLayoutTest, FlexShrinkHorizontal) { 485 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10); 486 host_->SetLayoutManager(layout); 487 488 View* v1 = new StaticSizedView(gfx::Size(20, 20)); 489 host_->AddChildView(v1); 490 View* v2 = new StaticSizedView(gfx::Size(10, 10)); 491 host_->AddChildView(v2); 492 View* v3 = new StaticSizedView(gfx::Size(30, 30)); 493 host_->AddChildView(v3); 494 495 host_->SetBounds(0, 0, 85, 50); 496 497 // Truncate width by default. 498 host_->Layout(); 499 EXPECT_EQ(gfx::Rect(10, 10, 20, 30).ToString(), v1->bounds().ToString()); 500 EXPECT_EQ(gfx::Rect(40, 10, 10, 30).ToString(), v2->bounds().ToString()); 501 EXPECT_EQ(gfx::Rect(60, 10, 15, 30).ToString(), v3->bounds().ToString()); 502 503 std::vector<BoxLayout::MainAxisAlignment> main_alignments; 504 main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_START); 505 main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_CENTER); 506 main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_END); 507 508 for (size_t i = 0; i < main_alignments.size(); ++i) { 509 layout->set_main_axis_alignment(main_alignments[i]); 510 511 // Set the first view to shrink as much as necessary. 512 layout->SetFlexForView(v1, 1); 513 layout->ClearFlexForView(v2); 514 layout->ClearFlexForView(v3); 515 host_->Layout(); 516 EXPECT_EQ(gfx::Rect(10, 10, 5, 30).ToString(), v1->bounds().ToString()); 517 EXPECT_EQ(gfx::Rect(25, 10, 10, 30).ToString(), v2->bounds().ToString()); 518 EXPECT_EQ(gfx::Rect(45, 10, 30, 30).ToString(), v3->bounds().ToString()); 519 520 // Set the third view to shrink 2/3s of the free space and leave the first 521 // view with 1/3. 522 layout->SetFlexForView(v3, 2); 523 host_->Layout(); 524 EXPECT_EQ(gfx::Rect(10, 10, 15, 30).ToString(), v1->bounds().ToString()); 525 EXPECT_EQ(gfx::Rect(35, 10, 10, 30).ToString(), v2->bounds().ToString()); 526 EXPECT_EQ(gfx::Rect(55, 10, 20, 30).ToString(), v3->bounds().ToString()); 527 528 // Clear the previously set flex values and set the second view to take all 529 // the free space with MAIN_AXIS_ALIGNMENT_END set. This causes the second 530 // view to shrink to zero and the third view still doesn't fit so it 531 // overflows. 532 layout->ClearFlexForView(v1); 533 layout->SetFlexForView(v2, 2); 534 layout->ClearFlexForView(v3); 535 host_->Layout(); 536 EXPECT_EQ(gfx::Rect(10, 10, 20, 30).ToString(), v1->bounds().ToString()); 537 // Conceptually this view is at 10, 40, 0, 0. 538 EXPECT_EQ(gfx::Rect(0, 0, 0, 0).ToString(), v2->bounds().ToString()); 539 EXPECT_EQ(gfx::Rect(50, 10, 25, 30).ToString(), v3->bounds().ToString()); 540 } 541} 542 543TEST_F(BoxLayoutTest, FlexShrinkVerticalWithRemainder) { 544 BoxLayout* layout = new BoxLayout(BoxLayout::kVertical, 0, 0, 0); 545 host_->SetLayoutManager(layout); 546 View* v1 = new StaticSizedView(gfx::Size(20, 10)); 547 host_->AddChildView(v1); 548 View* v2 = new StaticSizedView(gfx::Size(20, 20)); 549 host_->AddChildView(v2); 550 View* v3 = new StaticSizedView(gfx::Size(20, 10)); 551 host_->AddChildView(v3); 552 host_->SetBounds(0, 0, 20, 20); 553 554 std::vector<BoxLayout::MainAxisAlignment> main_alignments; 555 main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_START); 556 main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_CENTER); 557 main_alignments.push_back(BoxLayout::MAIN_AXIS_ALIGNMENT_END); 558 559 for (size_t i = 0; i < main_alignments.size(); ++i) { 560 layout->set_main_axis_alignment(main_alignments[i]); 561 562 // The first view shrinks by 1/3 of the excess, the second view shrinks by 563 // 2/3 of the excess and the third view should maintain its preferred size. 564 layout->SetFlexForView(v1, 1); 565 layout->SetFlexForView(v2, 2); 566 layout->ClearFlexForView(v3); 567 host_->Layout(); 568 EXPECT_EQ(gfx::Rect(0, 0, 20, 3).ToString(), v1->bounds().ToString()); 569 EXPECT_EQ(gfx::Rect(0, 3, 20, 7).ToString(), v2->bounds().ToString()); 570 EXPECT_EQ(gfx::Rect(0, 10, 20, 10).ToString(), v3->bounds().ToString()); 571 572 // The second view shrinks to 2/3 of the excess, the third view shrinks to 573 // 1/3 of the excess and the first view should maintain its preferred size. 574 layout->ClearFlexForView(v1); 575 layout->SetFlexForView(v2, 2); 576 layout->SetFlexForView(v3, 1); 577 host_->Layout(); 578 EXPECT_EQ(gfx::Rect(0, 0, 20, 10).ToString(), v1->bounds().ToString()); 579 EXPECT_EQ(gfx::Rect(0, 10, 20, 7).ToString(), v2->bounds().ToString()); 580 EXPECT_EQ(gfx::Rect(0, 17, 20, 3).ToString(), v3->bounds().ToString()); 581 582 // Each view shrinks equally to fit within the available space. 583 layout->SetFlexForView(v1, 1); 584 layout->SetFlexForView(v2, 1); 585 layout->SetFlexForView(v3, 1); 586 host_->Layout(); 587 EXPECT_EQ(gfx::Rect(0, 0, 20, 3).ToString(), v1->bounds().ToString()); 588 EXPECT_EQ(gfx::Rect(0, 3, 20, 14).ToString(), v2->bounds().ToString()); 589 EXPECT_EQ(gfx::Rect(0, 17, 20, 3).ToString(), v3->bounds().ToString()); 590 } 591} 592 593TEST_F(BoxLayoutTest, MinimumCrossAxisVertical) { 594 BoxLayout* layout = new BoxLayout(BoxLayout::kVertical, 0, 0, 0); 595 host_->SetLayoutManager(layout); 596 View* v1 = new StaticSizedView(gfx::Size(20, 10)); 597 host_->AddChildView(v1); 598 layout->set_minimum_cross_axis_size(30); 599 600 EXPECT_EQ(gfx::Size(30, 10), layout->GetPreferredSize(host_.get())); 601} 602 603TEST_F(BoxLayoutTest, MinimumCrossAxisHorizontal) { 604 BoxLayout* layout = new BoxLayout(BoxLayout::kHorizontal, 0, 0, 0); 605 host_->SetLayoutManager(layout); 606 View* v1 = new StaticSizedView(gfx::Size(20, 10)); 607 host_->AddChildView(v1); 608 layout->set_minimum_cross_axis_size(30); 609 610 EXPECT_EQ(gfx::Size(20, 30), layout->GetPreferredSize(host_.get())); 611} 612 613} // namespace views 614