1 files changed, 98 insertions, 2 deletions
diff --git a/chromium/third_party/blink/renderer/core/page/chrome_client_impl_test.cc b/chromium/third_party/blink/renderer/core/page/chrome_client_impl_test.cc
index f2ed77c35a3..cff471e3ff2 100644
--- a/chromium/third_party/blink/renderer/core/page/chrome_client_impl_test.cc
+++ b/chromium/third_party/blink/renderer/core/page/chrome_client_impl_test.cc
@@ -28,10 +28,12 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include "third_party/blink/renderer/core/page/chrome_client_impl.h"
+#include "cc/trees/layer_tree_host.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/blink/public/platform/web_input_event.h"
-#include "third_party/blink/public/web/web_frame_client.h"
 #include "third_party/blink/public/web/web_local_frame.h"
+#include "third_party/blink/public/web/web_local_frame_client.h"
 #include "third_party/blink/public/web/web_view.h"
 #include "third_party/blink/public/web/web_view_client.h"
 #include "third_party/blink/renderer/core/exported/web_view_impl.h"
@@ -42,10 +44,11 @@
 #include "third_party/blink/renderer/core/html/forms/date_time_chooser_client.h"
 #include "third_party/blink/renderer/core/html/forms/html_select_element.h"
 #include "third_party/blink/renderer/core/loader/frame_load_request.h"
-#include "third_party/blink/renderer/core/page/chrome_client_impl.h"
 #include "third_party/blink/renderer/core/page/page.h"
 #include "third_party/blink/renderer/core/page/scoped_page_pauser.h"
+#include "third_party/blink/renderer/core/paint/compositing/composited_selection.h"
 #include "third_party/blink/renderer/platform/language.h"
+#include "third_party/blink/renderer/platform/testing/stub_graphics_layer_client.h"
 
 namespace blink {
 
@@ -237,4 +240,97 @@ TEST_F(PagePopupSuppressionTest, SuppressDateTimeChooser) {
   EXPECT_TRUE(CanOpenDateTimeChooser());
 }
 
+TEST(ChromeClientImplTest, SelectionHandles) {
+  FrameTestHelpers::WebViewHelper helper;
+  WebViewImpl* web_view = helper.Initialize();
+  ChromeClientImpl* chrome_client_impl =
+      ToChromeClientImpl(&web_view->GetPage()->GetChromeClient());
+
+  content::LayerTreeView* layer_tree_view = helper.GetLayerTreeView();
+  LocalFrame* main_frame = helper.LocalMainFrame()->GetFrame();
+
+  auto set_and_get_selection = [&](const CompositedSelection& selection) {
+    // Sets the selection on the LayerTreeHost, then return what it set.
+    chrome_client_impl->UpdateCompositedSelection(main_frame, selection);
+    return layer_tree_view->layer_tree_host()->selection();
+  };
+
+  StubGraphicsLayerClient graphics_layer_client;
+  std::unique_ptr<GraphicsLayer> graphics_layer =
+      GraphicsLayer::Create(graphics_layer_client);
+
+  CompositedSelection selection;
+  cc::LayerSelection cc_selection;
+
+  selection.start.layer = graphics_layer.get();
+  selection.end.layer = graphics_layer.get();
+
+  // An LTR range selection.
+  selection.type = kRangeSelection;
+  selection.start.is_text_direction_rtl = false;
+  selection.end.is_text_direction_rtl = false;
+  selection.start.edge_top_in_layer = FloatPoint(1.1f, 2.8f);
+  selection.start.edge_bottom_in_layer = FloatPoint(2.9f, 3.2f);
+  selection.end.edge_top_in_layer = FloatPoint(4.1f, 5.8f);
+  selection.end.edge_bottom_in_layer = FloatPoint(5.9f, 6.2f);
+  selection.start.hidden = false;
+  selection.end.hidden = false;
+
+  cc_selection = set_and_get_selection(selection);
+  // LTR means the start is left and the end is right.
+  EXPECT_EQ(cc_selection.start.type, gfx::SelectionBound::Type::LEFT);
+  EXPECT_EQ(cc_selection.end.type, gfx::SelectionBound::Type::RIGHT);
+  EXPECT_EQ(cc_selection.start.hidden, false);
+  EXPECT_EQ(cc_selection.end.hidden, false);
+  // Points are rounded.
+  EXPECT_EQ(cc_selection.start.edge_top, gfx::Point(1, 3));
+  EXPECT_EQ(cc_selection.start.edge_bottom, gfx::Point(3, 3));
+  EXPECT_EQ(cc_selection.end.edge_top, gfx::Point(4, 6));
+  EXPECT_EQ(cc_selection.end.edge_bottom, gfx::Point(6, 6));
+
+  // An RTL range selection.
+  selection.start.is_text_direction_rtl = true;
+  selection.end.is_text_direction_rtl = true;
+
+  cc_selection = set_and_get_selection(selection);
+  // RTL means the start is right and the end is left.
+  EXPECT_EQ(cc_selection.start.type, gfx::SelectionBound::Type::RIGHT);
+  EXPECT_EQ(cc_selection.end.type, gfx::SelectionBound::Type::LEFT);
+  EXPECT_EQ(cc_selection.start.hidden, false);
+  EXPECT_EQ(cc_selection.end.hidden, false);
+  EXPECT_EQ(cc_selection.start.edge_top, gfx::Point(1, 3));
+  EXPECT_EQ(cc_selection.start.edge_bottom, gfx::Point(3, 3));
+  EXPECT_EQ(cc_selection.end.edge_top, gfx::Point(4, 6));
+  EXPECT_EQ(cc_selection.end.edge_bottom, gfx::Point(6, 6));
+
+  // A hidden range selection.
+  selection.start.hidden = true;
+  selection.end.hidden = true;
+
+  cc_selection = set_and_get_selection(selection);
+  EXPECT_EQ(cc_selection.start.type, gfx::SelectionBound::Type::RIGHT);
+  EXPECT_EQ(cc_selection.end.type, gfx::SelectionBound::Type::LEFT);
+  // The hidden flag is propogated.
+  EXPECT_EQ(cc_selection.start.hidden, true);
+  EXPECT_EQ(cc_selection.end.hidden, true);
+  EXPECT_EQ(cc_selection.start.edge_top, gfx::Point(1, 3));
+  EXPECT_EQ(cc_selection.start.edge_bottom, gfx::Point(3, 3));
+  EXPECT_EQ(cc_selection.end.edge_top, gfx::Point(4, 6));
+  EXPECT_EQ(cc_selection.end.edge_bottom, gfx::Point(6, 6));
+
+  // A caret selection.
+  selection.type = kCaretSelection;
+
+  cc_selection = set_and_get_selection(selection);
+  // Caret selections have no left/right, only center.
+  EXPECT_EQ(cc_selection.start.type, gfx::SelectionBound::Type::CENTER);
+  EXPECT_EQ(cc_selection.end.type, gfx::SelectionBound::Type::CENTER);
+  EXPECT_EQ(cc_selection.start.hidden, true);
+  EXPECT_EQ(cc_selection.end.hidden, true);
+  EXPECT_EQ(cc_selection.start.edge_top, gfx::Point(1, 3));
+  EXPECT_EQ(cc_selection.start.edge_bottom, gfx::Point(3, 3));
+  EXPECT_EQ(cc_selection.end.edge_top, gfx::Point(4, 6));
+  EXPECT_EQ(cc_selection.end.edge_bottom, gfx::Point(6, 6));
+}
+
 }  // namespace blink