1 files changed, 327 insertions, 0 deletions
diff --git a/chromium/third_party/blink/renderer/core/editing/commands/move_commands_test.cc b/chromium/third_party/blink/renderer/core/editing/commands/move_commands_test.cc
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index 00000000000..7de107b8210
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+++ b/chromium/third_party/blink/renderer/core/editing/commands/move_commands_test.cc
@@ -0,0 +1,327 @@
+// Copyright 2019 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 <string>
+
+#include "build/build_config.h"
+#include "third_party/blink/renderer/core/dom/element.h"
+#include "third_party/blink/renderer/core/editing/commands/move_commands.h"
+#include "third_party/blink/renderer/core/editing/editor.h"
+#include "third_party/blink/renderer/core/editing/frame_selection.h"
+#include "third_party/blink/renderer/core/editing/selection_template.h"
+#include "third_party/blink/renderer/core/editing/testing/editing_test_base.h"
+#include "third_party/blink/renderer/core/frame/settings.h"
+
+namespace blink {
+
+class MoveCommandsTest : public EditingTestBase {
+ protected:
+  void VerifyCaretBrowsingPositionAndFocusUpdate(
+      const std::string& initial_selection_text,
+      const AtomicString& initial_focus_element,
+      bool (*execute)(LocalFrame&, Event*, EditorCommandSource, const String&),
+      const std::string& final_selection_text,
+      const AtomicString& final_focus_element) {
+    Selection().SetSelection(SetSelectionTextToBody(initial_selection_text),
+                             SetSelectionOptions());
+    GetDocument().SetFocusedElement(
+        GetDocument().QuerySelector(initial_focus_element),
+        FocusParams(SelectionBehaviorOnFocus::kNone, kWebFocusTypeNone,
+                    nullptr));
+    GetDocument().GetFrame()->GetSettings()->SetCaretBrowsingEnabled(true);
+    execute(*GetDocument().GetFrame(), nullptr,
+            EditorCommandSource::kMenuOrKeyBinding, String());
+    EXPECT_EQ(final_selection_text, GetSelectionTextFromBody());
+    EXPECT_EQ(GetDocument().QuerySelector(final_focus_element),
+              GetDocument().ActiveElement());
+  }
+};
+
+// The following CaretBrowsingPositionAndFocusUpdate_Move* tests verify that the
+// move commands are using UpdateFocusForCaretBrowsing to adjust caret position
+// and focus while caret browsing.
+
+TEST_F(MoveCommandsTest, CaretBrowsingPositionAndFocusUpdate_MoveBackward) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div><a href=\"foo\">a</a>|b</div>", "body",
+      MoveCommands::ExecuteMoveBackward, "<div><a href=\"foo\">|a</a>b</div>",
+      "a");
+}
+
+TEST_F(MoveCommandsTest, CaretBrowsingPositionAndFocusUpdate_MoveDown) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div>a|b</div><div><a href=\"foo\">cd</a></div>", "body",
+      MoveCommands::ExecuteMoveDown,
+#if !defined(OS_MACOSX)
+      "<div>ab</div><div><a href=\"foo\">c|d</a></div>", "a");
+#else   // defined(OS_MACOSX)
+        // MoveDown navigates visually, placing caret at different position for
+        // macOS.
+      "<div>ab</div><div><a href=\"foo\">|cd</a></div>", "a");
+#endif  // !defined(OS_MACOSX)
+}
+
+TEST_F(MoveCommandsTest, CaretBrowsingPositionAndFocusUpdate_MoveForward) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div>a|<a href=\"foo\">b</a></div>", "body",
+      MoveCommands::ExecuteMoveForward, "<div>a<a href=\"foo\">b|</a></div>",
+      "a");
+}
+
+TEST_F(MoveCommandsTest, CaretBrowsingPositionAndFocusUpdate_MoveLeft) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div><a href=\"foo\">a</a>|b</div>", "body",
+      MoveCommands::ExecuteMoveLeft, "<div><a href=\"foo\">|a</a>b</div>", "a");
+}
+
+TEST_F(MoveCommandsTest,
+       CaretBrowsingPositionAndFocusUpdate_MoveParagraphBackward) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div><a href=\"foo\">a</a>|b</div>", "body",
+      MoveCommands::ExecuteMoveParagraphBackward,
+      "<div><a href=\"foo\">|a</a>b</div>", "a");
+}
+
+TEST_F(MoveCommandsTest,
+       CaretBrowsingPositionAndFocusUpdate_MoveParagraphForward) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div>a|<a href=\"foo\">b</a></div>", "body",
+      MoveCommands::ExecuteMoveParagraphForward,
+      "<div>a<a href=\"foo\">b|</a></div>", "a");
+}
+
+TEST_F(MoveCommandsTest, CaretBrowsingPositionAndFocusUpdate_MoveRight) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div>a|<a href=\"foo\">b</a></div>", "body",
+      MoveCommands::ExecuteMoveRight, "<div>a<a href=\"foo\">b|</a></div>",
+      "a");
+}
+
+TEST_F(MoveCommandsTest,
+       CaretBrowsingPositionAndFocusUpdate_MoveToBeginningOfDocument) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div><a href=\"foo\">a</a>|b</div>", "body",
+      MoveCommands::ExecuteMoveToBeginningOfDocument,
+      "<div><a href=\"foo\">|a</a>b</div>", "a");
+}
+
+TEST_F(MoveCommandsTest,
+       CaretBrowsingPositionAndFocusUpdate_MoveToBeginningOfLine) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div><a href=\"foo\">a</a>|b</div>", "body",
+      MoveCommands::ExecuteMoveToBeginningOfLine,
+      "<div><a href=\"foo\">|a</a>b</div>", "a");
+}
+
+TEST_F(MoveCommandsTest,
+       CaretBrowsingPositionAndFocusUpdate_MoveToBeginningOfParagraph) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div><a href=\"foo\">a</a>|b</div>", "body",
+      MoveCommands::ExecuteMoveToBeginningOfParagraph,
+      "<div><a href=\"foo\">|a</a>b</div>", "a");
+}
+
+TEST_F(MoveCommandsTest,
+       CaretBrowsingPositionAndFocusUpdate_MoveToBeginningOfSentence) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div><a href=\"foo\">a</a>|b</div>", "body",
+      MoveCommands::ExecuteMoveToBeginningOfSentence,
+      "<div><a href=\"foo\">|a</a>b</div>", "a");
+}
+
+TEST_F(MoveCommandsTest,
+       CaretBrowsingPositionAndFocusUpdate_MoveToEndOfDocument) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div>a|<a href=\"foo\">b</a></div>", "body",
+      MoveCommands::ExecuteMoveToEndOfDocument,
+      "<div>a<a href=\"foo\">b|</a></div>", "a");
+}
+
+TEST_F(MoveCommandsTest, CaretBrowsingPositionAndFocusUpdate_MoveToEndOfLine) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div>a|<a href=\"foo\">b</a></div>", "body",
+      MoveCommands::ExecuteMoveToEndOfLine,
+      "<div>a<a href=\"foo\">b|</a></div>", "a");
+}
+
+TEST_F(MoveCommandsTest,
+       CaretBrowsingPositionAndFocusUpdate_MoveToEndOfParagraph) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div>a|<a href=\"foo\">b</a></div>", "body",
+      MoveCommands::ExecuteMoveToEndOfParagraph,
+      "<div>a<a href=\"foo\">b|</a></div>", "a");
+}
+
+TEST_F(MoveCommandsTest,
+       CaretBrowsingPositionAndFocusUpdate_MoveToEndOfSentence) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div>a|<a href=\"foo\">b</a></div>", "body",
+      MoveCommands::ExecuteMoveToEndOfSentence,
+      "<div>a<a href=\"foo\">b|</a></div>", "a");
+}
+
+TEST_F(MoveCommandsTest,
+       CaretBrowsingPositionAndFocusUpdate_MoveToLeftEndOfLine) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div><a href=\"foo\">a</a>|b</div>", "body",
+      MoveCommands::ExecuteMoveToLeftEndOfLine,
+      "<div><a href=\"foo\">|a</a>b</div>", "a");
+}
+
+TEST_F(MoveCommandsTest,
+       CaretBrowsingPositionAndFocusUpdate_MoveToRightEndOfLine) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div>a|<a href=\"foo\">b</a></div>", "body",
+      MoveCommands::ExecuteMoveToRightEndOfLine,
+      "<div>a<a href=\"foo\">b|</a></div>", "a");
+}
+
+TEST_F(MoveCommandsTest, CaretBrowsingPositionAndFocusUpdate_MoveUp) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div><a href=\"foo\">ab</a></div><div>c|d</div>", "body",
+      MoveCommands::ExecuteMoveUp,
+#if !defined(OS_MACOSX)
+      "<div><a href=\"foo\">a|b</a></div><div>cd</div>", "a");
+#else   // defined(OS_MACOSX)
+      // MoveUp navigates visually, placing caret at different position for
+      // macOS.
+      "<div><a href=\"foo\">|ab</a></div><div>cd</div>", "a");
+#endif  // !defined(OS_MACOSX)
+}
+
+TEST_F(MoveCommandsTest, CaretBrowsingPositionAndFocusUpdate_MoveWordBackward) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div><a href=\"foo\">a</a>|b</div>", "body",
+      MoveCommands::ExecuteMoveWordBackward,
+      "<div><a href=\"foo\">|a</a>b</div>", "a");
+}
+
+TEST_F(MoveCommandsTest, CaretBrowsingPositionAndFocusUpdate_MoveWordForward) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div>a|<a href=\"foo\">b</a></div>", "body",
+      MoveCommands::ExecuteMoveWordForward,
+      "<div>a<a href=\"foo\">b|</a></div>", "a");
+}
+
+TEST_F(MoveCommandsTest, CaretBrowsingPositionAndFocusUpdate_MoveWordLeft) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div><a href=\"foo\">a</a>|b</div>", "body",
+      MoveCommands::ExecuteMoveWordLeft, "<div><a href=\"foo\">|a</a>b</div>",
+      "a");
+}
+
+TEST_F(MoveCommandsTest, CaretBrowsingPositionAndFocusUpdate_MoveWordRight) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div>a|<a href=\"foo\"> b</a></div>", "body",
+      MoveCommands::ExecuteMoveWordRight, "<div>a<a href=\"foo\"> b|</a></div>",
+      "a");
+}
+
+// This test verifies that focus returns to the body after browsing out of a
+// focusable element.
+TEST_F(MoveCommandsTest,
+       CaretBrowsingPositionAndFocusUpdate_ExitingFocusableElement) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div><a href=\"foo\">a|</a>b</div>", "a", MoveCommands::ExecuteMoveRight,
+      "<div><a href=\"foo\">a</a>b|</div>", "body");
+}
+
+// This test verifies that caret browsing into a focusable element does not
+// move focus if inside an editable region.
+TEST_F(MoveCommandsTest, CaretBrowsingPositionAndFocusUpdate_EditableElements) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div contenteditable>a|<a href=\"foo\">b</a>c</div>", "div",
+      MoveCommands::ExecuteMoveRight,
+      "<div contenteditable>a<a href=\"foo\">b|</a>c</div>", "div");
+}
+
+// This test verifies that another focusable element (the button element) can be
+// moved into while caret browsing and gains focus, just like an anchor
+// element.
+TEST_F(MoveCommandsTest,
+       CaretBrowsingPositionAndFocusUpdate_MoveRightButtonElement) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div>Some text to the left of the button|<button>Click "
+      "Me!</button></div>",
+      "body", MoveCommands::ExecuteMoveRight,
+      "<div>Some text to the left of the button<button>C|lick "
+      "Me!</button></div>",
+      "button");
+}
+
+// This test verifies that an element with tabindex set can be moved
+// into while caret browsing and gains focus, just like an anchor element.
+TEST_F(MoveCommandsTest,
+       CaretBrowsingPositionAndFocusUpdate_MoveRightElementWithTabIndex) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div>Some text to the left of the span|<span tabindex=\"0\">Span with "
+      "tabindex set</span></div>",
+      "body", MoveCommands::ExecuteMoveRight,
+      "<div>Some text to the left of the span<span tabindex=\"0\">S|pan with "
+      "tabindex set</span></div>",
+      "span");
+}
+
+// This test verifies that an input element will be skipped when caret browsing
+// and not gain focus.
+TEST_F(MoveCommandsTest,
+       CaretBrowsingPositionAndFocusUpdate_MoveRightInputElement) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div>Some text to the left of the input element|<input type=\"text\" "
+      "value=\"This is some initial text\">Some text to the right of the input "
+      "element</div>",
+      "body", MoveCommands::ExecuteMoveRight,
+      "<div>Some text to the left of the input element<input type=\"text\" "
+      "value=\"This is some initial text\">|Some text to the right of the "
+      "input element</div>",
+      "body");
+}
+
+// This test verifies that a contentEditable element will be skipped when caret
+// browsing and not gain focus.
+TEST_F(MoveCommandsTest,
+       CaretBrowsingPositionAndFocusUpdate_MoveRightContentEditableElement) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div>Some text to the left of the contentEditable element|<span "
+      "contentEditable=\"true\">I am content editable</span>Some text to the "
+      "right of the contentEditable element</div>",
+      "body", MoveCommands::ExecuteMoveRight,
+      "<div>Some text to the left of the contentEditable element<span "
+      "contenteditable=\"true\">I am content editable</span>|Some text to the "
+      "right of the contentEditable element</div>",
+      "body");
+}
+
+// This test verifies that a textarea element will be skipped when caret
+// browsing and not gain focus.
+TEST_F(MoveCommandsTest,
+       CaretBrowsingPositionAndFocusUpdate_MoveRightTextAreaElement) {
+  VerifyCaretBrowsingPositionAndFocusUpdate(
+      "<div>Some text to the left of the textarea element|<textarea>I am in a "
+      "textarea</textarea>Some text to the "
+      "right of the textarea element</div>",
+      "body", MoveCommands::ExecuteMoveRight,
+      "<div>Some text to the left of the textarea element<textarea>I am in a "
+      "textarea</textarea>|Some text to the "
+      "right of the textarea element</div>",
+      "body");
+}
+
+// This test verifies that while caret browsing if you try to move the caret
+// when it is not in focus then it jumps to the active element before moving.
+TEST_F(MoveCommandsTest, CaretBrowsingSelectionUpdate) {
+  Selection().SetSelection(
+      SetSelectionTextToBody("<div>|a<a href=\"foo\">b</a></div>"),
+      SetSelectionOptions());
+  GetDocument().SetFocusedElement(
+      GetDocument().QuerySelector("a"),
+      FocusParams(SelectionBehaviorOnFocus::kNone, kWebFocusTypeNone, nullptr));
+  GetDocument().GetFrame()->GetSettings()->SetCaretBrowsingEnabled(true);
+  MoveCommands::ExecuteMoveRight(*GetDocument().GetFrame(), nullptr,
+                                 EditorCommandSource::kMenuOrKeyBinding,
+                                 String());
+  EXPECT_EQ("<div>a<a href=\"foo\">b|</a></div>", GetSelectionTextFromBody());
+}
+
+}  // namespace blink