| // Copyright 2017 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "third_party/blink/renderer/core/editing/selection_modifier.h" |
| |
| #include "third_party/blink/renderer/core/editing/editing_behavior.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/testing/editing_test_base.h" |
| #include "third_party/blink/renderer/core/editing/visible_position.h" |
| #include "third_party/blink/renderer/core/frame/local_frame.h" |
| #include "third_party/blink/renderer/core/frame/settings.h" |
| #include "third_party/blink/renderer/core/html/shadow/shadow_element_names.h" |
| #include "third_party/blink/renderer/platform/testing/runtime_enabled_features_test_helpers.h" |
| |
| namespace blink { |
| |
| class SelectionModifierTest : public EditingTestBase { |
| protected: |
| std::string MoveBackwardByLine(SelectionModifier& modifier) { |
| modifier.Modify(SelectionModifyAlteration::kMove, |
| SelectionModifyDirection::kBackward, |
| TextGranularity::kLine); |
| return GetSelectionTextFromBody(modifier.Selection().AsSelection()); |
| } |
| |
| std::string MoveForwardByLine(SelectionModifier& modifier) { |
| modifier.Modify(SelectionModifyAlteration::kMove, |
| SelectionModifyDirection::kForward, TextGranularity::kLine); |
| return GetSelectionTextFromBody(modifier.Selection().AsSelection()); |
| } |
| }; |
| |
| TEST_F(SelectionModifierTest, ExtendForwardByWordNone) { |
| SetBodyContent("abc"); |
| SelectionModifier modifier(GetFrame(), SelectionInDOMTree()); |
| modifier.Modify(SelectionModifyAlteration::kExtend, |
| SelectionModifyDirection::kForward, TextGranularity::kWord); |
| // We should not crash here. See http://crbug.com/832061 |
| EXPECT_EQ(SelectionInDOMTree(), modifier.Selection().AsSelection()); |
| } |
| |
| TEST_F(SelectionModifierTest, MoveForwardByWordNone) { |
| SetBodyContent("abc"); |
| SelectionModifier modifier(GetFrame(), SelectionInDOMTree()); |
| modifier.Modify(SelectionModifyAlteration::kMove, |
| SelectionModifyDirection::kForward, TextGranularity::kWord); |
| // We should not crash here. See http://crbug.com/832061 |
| EXPECT_EQ(SelectionInDOMTree(), modifier.Selection().AsSelection()); |
| } |
| |
| // http://crbug.com/1300781 |
| TEST_F(SelectionModifierTest, MoveByLineBlockInInline) { |
| LoadAhem(); |
| InsertStyleElement( |
| "div {" |
| "font: 10px/20px Ahem;" |
| "padding: 10px;" |
| "writing-mode: horizontal-tb;" |
| "}" |
| "b { background: orange; }"); |
| const SelectionInDOMTree selection = |
| SetSelectionTextToBody("<div>ab|c<b><p>ABC</p><p>DEF</p>def</b></div>"); |
| SelectionModifier modifier(GetFrame(), selection); |
| |
| EXPECT_EQ("<div>abc<b><p>AB|C</p><p>DEF</p>def</b></div>", |
| MoveForwardByLine(modifier)); |
| EXPECT_EQ("<div>abc<b><p>ABC</p><p>DE|F</p>def</b></div>", |
| MoveForwardByLine(modifier)); |
| EXPECT_EQ("<div>abc<b><p>ABC</p><p>DEF</p>de|f</b></div>", |
| MoveForwardByLine(modifier)); |
| |
| EXPECT_EQ("<div>abc<b><p>ABC</p><p>DE|F</p>def</b></div>", |
| MoveBackwardByLine(modifier)); |
| EXPECT_EQ("<div>abc<b><p>AB|C</p><p>DEF</p>def</b></div>", |
| MoveBackwardByLine(modifier)); |
| EXPECT_EQ("<div>ab|c<b><p>ABC</p><p>DEF</p>def</b></div>", |
| MoveBackwardByLine(modifier)); |
| } |
| |
| TEST_F(SelectionModifierTest, MoveByLineHorizontal) { |
| LoadAhem(); |
| InsertStyleElement( |
| "p {" |
| "font: 10px/20px Ahem;" |
| "padding: 10px;" |
| "writing-mode: horizontal-tb;" |
| "}"); |
| const SelectionInDOMTree selection = |
| SetSelectionTextToBody("<p>ab|c<br>d<br><br>ghi</p>"); |
| SelectionModifier modifier(GetFrame(), selection); |
| |
| EXPECT_EQ("<p>abc<br>d|<br><br>ghi</p>", MoveForwardByLine(modifier)); |
| EXPECT_EQ("<p>abc<br>d<br>|<br>ghi</p>", MoveForwardByLine(modifier)); |
| EXPECT_EQ("<p>abc<br>d<br><br>gh|i</p>", MoveForwardByLine(modifier)); |
| |
| EXPECT_EQ("<p>abc<br>d<br>|<br>ghi</p>", MoveBackwardByLine(modifier)); |
| EXPECT_EQ("<p>abc<br>d|<br><br>ghi</p>", MoveBackwardByLine(modifier)); |
| EXPECT_EQ("<p>ab|c<br>d<br><br>ghi</p>", MoveBackwardByLine(modifier)); |
| } |
| |
| TEST_F(SelectionModifierTest, MoveByLineMultiColumnSingleText) { |
| LoadAhem(); |
| InsertStyleElement( |
| "div { font: 10px/15px Ahem; column-count: 3; width: 20ch; }"); |
| const SelectionInDOMTree selection = |
| SetSelectionTextToBody("<div>|abc def ghi jkl mno pqr</div>"); |
| // This HTML is rendered as: |
| // abc ghi mno |
| // def jkl pqr |
| SelectionModifier modifier(GetFrame(), selection); |
| |
| EXPECT_EQ("<div>abc |def ghi jkl mno pqr</div>", MoveForwardByLine(modifier)); |
| EXPECT_EQ("<div>abc def |ghi jkl mno pqr</div>", MoveForwardByLine(modifier)); |
| EXPECT_EQ("<div>abc def ghi |jkl mno pqr</div>", MoveForwardByLine(modifier)); |
| EXPECT_EQ("<div>abc def ghi jkl |mno pqr</div>", MoveForwardByLine(modifier)); |
| EXPECT_EQ("<div>abc def ghi jkl mno |pqr</div>", MoveForwardByLine(modifier)); |
| EXPECT_EQ("<div>abc def ghi jkl mno pqr|</div>", MoveForwardByLine(modifier)); |
| |
| EXPECT_EQ("<div>abc def ghi jkl |mno pqr</div>", |
| MoveBackwardByLine(modifier)); |
| EXPECT_EQ("<div>abc def ghi |jkl mno pqr</div>", |
| MoveBackwardByLine(modifier)); |
| EXPECT_EQ("<div>abc def |ghi jkl mno pqr</div>", |
| MoveBackwardByLine(modifier)); |
| EXPECT_EQ("<div>abc |def ghi jkl mno pqr</div>", |
| MoveBackwardByLine(modifier)); |
| EXPECT_EQ("<div>|abc def ghi jkl mno pqr</div>", |
| MoveBackwardByLine(modifier)); |
| } |
| |
| TEST_F(SelectionModifierTest, MoveByLineVertical) { |
| LoadAhem(); |
| InsertStyleElement( |
| "p {" |
| "font: 10px/20px Ahem;" |
| "padding: 10px;" |
| "writing-mode: vertical-rl;" |
| "}"); |
| const SelectionInDOMTree selection = |
| SetSelectionTextToBody("<p>ab|c<br>d<br><br>ghi</p>"); |
| SelectionModifier modifier(GetFrame(), selection); |
| |
| EXPECT_EQ("<p>abc<br>d|<br><br>ghi</p>", MoveForwardByLine(modifier)); |
| EXPECT_EQ("<p>abc<br>d<br>|<br>ghi</p>", MoveForwardByLine(modifier)); |
| EXPECT_EQ("<p>abc<br>d<br><br>gh|i</p>", MoveForwardByLine(modifier)); |
| |
| EXPECT_EQ("<p>abc<br>d<br>|<br>ghi</p>", MoveBackwardByLine(modifier)); |
| EXPECT_EQ("<p>abc<br>d|<br><br>ghi</p>", MoveBackwardByLine(modifier)); |
| EXPECT_EQ("<p>ab|c<br>d<br><br>ghi</p>", MoveBackwardByLine(modifier)); |
| } |
| |
| TEST_F(SelectionModifierTest, PreviousLineWithDisplayNone) { |
| InsertStyleElement("body{font-family: monospace}"); |
| const SelectionInDOMTree selection = SetSelectionTextToBody( |
| "<div contenteditable>" |
| "<div>foo bar</div>" |
| "<div>foo <b style=\"display:none\">qux</b> bar baz|</div>" |
| "</div>"); |
| SelectionModifier modifier(GetFrame(), selection); |
| modifier.Modify(SelectionModifyAlteration::kMove, |
| SelectionModifyDirection::kBackward, TextGranularity::kLine); |
| EXPECT_EQ( |
| "<div contenteditable>" |
| "<div>foo bar|</div>" |
| "<div>foo <b style=\"display:none\">qux</b> bar baz</div>" |
| "</div>", |
| GetSelectionTextFromBody(modifier.Selection().AsSelection())); |
| } |
| |
| // For http://crbug.com/1104582 |
| TEST_F(SelectionModifierTest, PreviousSentenceWithNull) { |
| InsertStyleElement("b {display:inline-block}"); |
| const SelectionInDOMTree selection = |
| SetSelectionTextToBody("<b><b><a>|</a></b></b>"); |
| SelectionModifier modifier(GetFrame(), selection); |
| // We call |PreviousSentence()| with null-position. |
| EXPECT_FALSE(modifier.Modify(SelectionModifyAlteration::kMove, |
| SelectionModifyDirection::kBackward, |
| TextGranularity::kSentence)); |
| } |
| |
| // For http://crbug.com/1100971 |
| TEST_F(SelectionModifierTest, StartOfSentenceWithNull) { |
| InsertStyleElement("b {display:inline-block}"); |
| const SelectionInDOMTree selection = |
| SetSelectionTextToBody("|<b><b><a></a></b></b>"); |
| SelectionModifier modifier(GetFrame(), selection); |
| // We call |StartOfSentence()| with null-position. |
| EXPECT_FALSE(modifier.Modify(SelectionModifyAlteration::kMove, |
| SelectionModifyDirection::kBackward, |
| TextGranularity::kSentenceBoundary)); |
| } |
| |
| TEST_F(SelectionModifierTest, MoveCaretWithShadow) { |
| const char* body_content = |
| "a a" |
| "<div id='host'>" |
| "<span slot='e'>e e</span>" |
| "<span slot='c'>c c</span>" |
| "</div>" |
| "f f"; |
| const char* shadow_content = |
| "b b" |
| "<slot name='c'></slot>" |
| "d d" |
| "<slot name='e'></slot>"; |
| LoadAhem(); |
| InsertStyleElement("body {font-family: Ahem}"); |
| SetBodyContent(body_content); |
| Element* host = GetDocument().getElementById(AtomicString("host")); |
| ShadowRoot& shadow_root = |
| host->AttachShadowRootForTesting(ShadowRootMode::kOpen); |
| shadow_root.setInnerHTML(shadow_content); |
| UpdateAllLifecyclePhasesForTest(); |
| |
| Element* body = GetDocument().body(); |
| Node* a = body->childNodes()->item(0); |
| Node* b = shadow_root.childNodes()->item(0); |
| Node* c = host->QuerySelector(AtomicString("[slot=c]"))->firstChild(); |
| Node* d = shadow_root.childNodes()->item(2); |
| Node* e = host->QuerySelector(AtomicString("[slot=e]"))->firstChild(); |
| Node* f = body->childNodes()->item(2); |
| |
| auto makeSelection = [&](Position position) { |
| return SelectionInDOMTree::Builder().Collapse(position).Build(); |
| }; |
| SelectionModifyAlteration move = SelectionModifyAlteration::kMove; |
| SelectionModifyDirection direction; |
| TextGranularity granularity; |
| |
| { |
| // Test moving forward, character by character. |
| direction = SelectionModifyDirection::kForward; |
| granularity = TextGranularity::kCharacter; |
| SelectionModifier modifier(GetFrame(), makeSelection(Position(body, 0))); |
| EXPECT_EQ(Position(a, 0), modifier.Selection().Anchor()); |
| for (Node* node : {a, b, c, d, e, f}) { |
| if (node == b || node == f) { |
| modifier.Modify(move, direction, granularity); |
| EXPECT_EQ(node == b ? Position::BeforeNode(*node) : Position(node, 0), |
| modifier.Selection().Anchor()); |
| } |
| modifier.Modify(move, direction, granularity); |
| EXPECT_EQ(Position(node, 1), modifier.Selection().Anchor()); |
| modifier.Modify(move, direction, granularity); |
| EXPECT_EQ(Position(node, 2), modifier.Selection().Anchor()); |
| modifier.Modify(move, direction, granularity); |
| EXPECT_EQ(Position(node, 3), modifier.Selection().Anchor()); |
| } |
| } |
| { |
| // Test moving backward, character by character. |
| direction = SelectionModifyDirection::kBackward; |
| granularity = TextGranularity::kCharacter; |
| SelectionModifier modifier(GetFrame(), makeSelection(Position(body, 3))); |
| for (Node* node : {f, e, d, c, b, a}) { |
| EXPECT_EQ(Position(node, 3), modifier.Selection().Anchor()); |
| modifier.Modify(move, direction, granularity); |
| EXPECT_EQ(Position(node, 2), modifier.Selection().Anchor()); |
| modifier.Modify(move, direction, granularity); |
| EXPECT_EQ(Position(node, 1), modifier.Selection().Anchor()); |
| modifier.Modify(move, direction, granularity); |
| if (node == f || node == b) { |
| EXPECT_EQ(node == b ? Position::BeforeNode(*node) : Position(node, 0), |
| modifier.Selection().Anchor()); |
| modifier.Modify(move, direction, granularity); |
| } |
| } |
| EXPECT_EQ(Position(a, 0), modifier.Selection().Anchor()); |
| } |
| { |
| // Test moving forward, word by word. |
| direction = SelectionModifyDirection::kForward; |
| granularity = TextGranularity::kWord; |
| bool skip_space = |
| GetFrame().GetEditor().Behavior().ShouldSkipSpaceWhenMovingRight(); |
| SelectionModifier modifier(GetFrame(), makeSelection(Position(body, 0))); |
| EXPECT_EQ(Position(a, 0), modifier.Selection().Anchor()); |
| for (Node* node : {a, b, c, d, e, f}) { |
| if (node == b || node == f) { |
| modifier.Modify(move, direction, granularity); |
| EXPECT_EQ(node == b ? Position::BeforeNode(*node) : Position(node, 0), |
| modifier.Selection().Anchor()); |
| } |
| modifier.Modify(move, direction, granularity); |
| EXPECT_EQ(Position(node, skip_space ? 2 : 1), |
| modifier.Selection().Anchor()); |
| if (node == a || node == e || node == f) { |
| modifier.Modify(move, direction, granularity); |
| EXPECT_EQ(Position(node, 3), modifier.Selection().Anchor()); |
| } |
| } |
| } |
| { |
| // Test moving backward, word by word. |
| direction = SelectionModifyDirection::kBackward; |
| granularity = TextGranularity::kWord; |
| SelectionModifier modifier(GetFrame(), makeSelection(Position(body, 3))); |
| for (Node* node : {f, e, d, c, b, a}) { |
| if (node == f || node == e || node == a) { |
| EXPECT_EQ(Position(node, 3), modifier.Selection().Anchor()); |
| modifier.Modify(move, direction, granularity); |
| } |
| EXPECT_EQ(Position(node, 2), modifier.Selection().Anchor()); |
| modifier.Modify(move, direction, granularity); |
| if (node == f || node == b) { |
| EXPECT_EQ(node == b ? Position::BeforeNode(*node) : Position(node, 0), |
| modifier.Selection().Anchor()); |
| modifier.Modify(move, direction, granularity); |
| } |
| } |
| EXPECT_EQ(Position(a, 0), modifier.Selection().Anchor()); |
| } |
| |
| // Place the contents into different lines |
| InsertStyleElement("span {display: block}"); |
| UpdateAllLifecyclePhasesForTest(); |
| |
| { |
| // Test moving forward, line by line. |
| direction = SelectionModifyDirection::kForward; |
| granularity = TextGranularity::kLine; |
| for (int i = 0; i <= 3; ++i) { |
| SelectionModifier modifier(GetFrame(), makeSelection(Position(a, i))); |
| for (Node* node : {a, b, c, d, e, f}) { |
| EXPECT_EQ(i == 0 && node == b ? Position::BeforeNode(*node) |
| : Position(node, i), |
| modifier.Selection().Anchor()); |
| modifier.Modify(move, direction, granularity); |
| } |
| EXPECT_EQ(Position(f, 3), modifier.Selection().Anchor()); |
| } |
| } |
| { |
| // Test moving backward, line by line. |
| direction = SelectionModifyDirection::kBackward; |
| granularity = TextGranularity::kLine; |
| for (int i = 0; i <= 3; ++i) { |
| SelectionModifier modifier(GetFrame(), makeSelection(Position(f, i))); |
| for (Node* node : {f, e, d, c, b, a}) { |
| EXPECT_EQ(i == 0 && node == b ? Position::BeforeNode(*node) |
| : Position(node, i), |
| modifier.Selection().Anchor()); |
| modifier.Modify(move, direction, granularity); |
| } |
| EXPECT_EQ(Position(a, 0), modifier.Selection().Anchor()); |
| } |
| } |
| } |
| |
| // For https://crbug.com/1155342 and https://crbug.com/1155309 |
| TEST_F(SelectionModifierTest, PreviousParagraphOfObject) { |
| const SelectionInDOMTree selection = |
| SetSelectionTextToBody("<object>|</object>"); |
| SelectionModifier modifier(GetFrame(), selection); |
| modifier.Modify(SelectionModifyAlteration::kMove, |
| SelectionModifyDirection::kBackward, |
| TextGranularity::kParagraph); |
| EXPECT_EQ("|<object></object>", |
| GetSelectionTextFromBody(modifier.Selection().AsSelection())); |
| } |
| |
| // For https://crbug.com/1177295 |
| TEST_F(SelectionModifierTest, PositionDisconnectedInFlatTree1) { |
| const SelectionInDOMTree selection = SetSelectionTextToBody( |
| "<div id=a><div id=b><div id=c>^x|</div></div></div>"); |
| SetShadowContent("", "a"); |
| SetShadowContent("", "b"); |
| SetShadowContent("", "c"); |
| SelectionModifier modifier(GetFrame(), selection); |
| modifier.Modify(SelectionModifyAlteration::kMove, |
| SelectionModifyDirection::kBackward, |
| TextGranularity::kParagraph); |
| EXPECT_EQ("<div id=\"a\"><div id=\"b\"><div id=\"c\">x</div></div></div>", |
| GetSelectionTextFromBody(modifier.Selection().AsSelection())); |
| } |
| |
| // For https://crbug.com/1177295 |
| TEST_F(SelectionModifierTest, PositionDisconnectedInFlatTree2) { |
| SetBodyContent("<div id=host>x</div>y"); |
| SetShadowContent("", "host"); |
| Element* host = GetElementById("host"); |
| Node* text = host->firstChild(); |
| Position positions[] = { |
| Position::BeforeNode(*host), Position::FirstPositionInNode(*host), |
| Position::LastPositionInNode(*host), Position::AfterNode(*host), |
| Position::BeforeNode(*text), Position::FirstPositionInNode(*text), |
| Position::LastPositionInNode(*text), Position::AfterNode(*text)}; |
| for (const Position& anchor : positions) { |
| EXPECT_TRUE(anchor.IsConnected()); |
| bool flat_anchor_is_connected = ToPositionInFlatTree(anchor).IsConnected(); |
| EXPECT_EQ(anchor.AnchorNode() == host, flat_anchor_is_connected); |
| for (const Position& focus : positions) { |
| const SelectionInDOMTree& selection = |
| SelectionInDOMTree::Builder().SetBaseAndExtent(anchor, focus).Build(); |
| Selection().SetSelection(selection, SetSelectionOptions()); |
| SelectionModifier modifier(GetFrame(), selection); |
| modifier.Modify(SelectionModifyAlteration::kExtend, |
| SelectionModifyDirection::kForward, |
| TextGranularity::kParagraph); |
| EXPECT_TRUE(focus.IsConnected()); |
| bool flat_focus_is_connected = |
| ToPositionInFlatTree(selection.Focus()).IsConnected(); |
| EXPECT_EQ(flat_anchor_is_connected || flat_focus_is_connected |
| ? "<div id=\"host\">x</div>^y|" |
| : "<div id=\"host\">x</div>y", |
| GetSelectionTextFromBody(modifier.Selection().AsSelection())); |
| } |
| } |
| } |
| |
| // For https://crbug.com/1312704 |
| TEST_F(SelectionModifierTest, OptgroupAndTable) { |
| InsertStyleElement( |
| "optgroup, table { display: inline-table; }" |
| "table { appearance:button; }"); |
| SelectionModifier modifier( |
| GetFrame(), SetSelectionTextToBody( |
| "<optgroup>^</optgroup>|<table><td></td></table>")); |
| EXPECT_TRUE(modifier.Modify(SelectionModifyAlteration::kExtend, |
| SelectionModifyDirection::kForward, |
| TextGranularity::kLine)); |
| |
| const SelectionInDOMTree& selection = modifier.Selection().AsSelection(); |
| EXPECT_EQ( |
| "<optgroup></optgroup><table><tbody><tr><td></td></tr></tbody></table>", |
| GetSelectionTextFromBody(selection)); |
| |
| Element* optgroup = GetDocument().QuerySelector(AtomicString("optgroup")); |
| ShadowRoot* shadow_root = optgroup->GetShadowRoot(); |
| Element* label = |
| shadow_root->getElementById(shadow_element_names::kIdOptGroupLabel); |
| EXPECT_EQ(Position(label, 0), selection.Anchor()); |
| EXPECT_EQ(Position(shadow_root, 1), selection.Focus()); |
| } |
| |
| TEST_F(SelectionModifierTest, EditableVideo) { |
| const SelectionInDOMTree selection = |
| SetSelectionTextToBody("a^<video contenteditable> </video>|"); |
| GetFrame().GetSettings()->SetEditingBehaviorType( |
| mojom::EditingBehavior::kEditingUnixBehavior); |
| for (SelectionModifyDirection direction : |
| {SelectionModifyDirection::kBackward, SelectionModifyDirection::kForward, |
| SelectionModifyDirection::kLeft, SelectionModifyDirection::kRight}) { |
| for (TextGranularity granularity : |
| {TextGranularity::kCharacter, TextGranularity::kWord, |
| TextGranularity::kSentence, TextGranularity::kLine, |
| TextGranularity::kParagraph, TextGranularity::kSentenceBoundary, |
| TextGranularity::kLineBoundary, TextGranularity::kParagraphBoundary, |
| TextGranularity::kDocumentBoundary}) { |
| SelectionModifier modifier(GetFrame(), selection); |
| // We should not crash here. See http://crbug.com/1376218 |
| modifier.Modify(SelectionModifyAlteration::kMove, direction, granularity); |
| EXPECT_EQ("a|<video contenteditable> </video>", |
| GetSelectionTextFromBody(modifier.Selection().AsSelection())) |
| << "Direction " << (int)direction << ", granularity " |
| << (int)granularity; |
| ; |
| } |
| } |
| } |
| |
| } // namespace blink |