| // Copyright 2015 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 "core/editing/EditingUtilities.h" |
| |
| #include "core/dom/StaticNodeList.h" |
| #include "core/editing/EditingTestBase.h" |
| |
| namespace blink { |
| |
| class EditingUtilitiesTest : public EditingTestBase {}; |
| |
| TEST_F(EditingUtilitiesTest, directionOfEnclosingBlock) { |
| const char* bodyContent = |
| "<p id='host'><b id='one'></b><b id='two'>22</b></p>"; |
| const char* shadowContent = |
| "<content select=#two></content><p dir=rtl><content " |
| "select=#one></content><p>"; |
| setBodyContent(bodyContent); |
| setShadowContent(shadowContent, "host"); |
| Node* one = document().getElementById("one"); |
| |
| EXPECT_EQ(TextDirection::Ltr, directionOfEnclosingBlock(Position(one, 0))); |
| EXPECT_EQ(TextDirection::Rtl, |
| directionOfEnclosingBlock(PositionInFlatTree(one, 0))); |
| } |
| |
| TEST_F(EditingUtilitiesTest, firstEditablePositionAfterPositionInRoot) { |
| const char* bodyContent = |
| "<p id='host' contenteditable><b id='one'>1</b><b id='two'>22</b></p>"; |
| const char* shadowContent = |
| "<content select=#two></content><content select=#one></content><b " |
| "id='three'>333</b>"; |
| setBodyContent(bodyContent); |
| ShadowRoot* shadowRoot = setShadowContent(shadowContent, "host"); |
| Element* host = document().getElementById("host"); |
| Node* one = document().getElementById("one"); |
| Node* two = document().getElementById("two"); |
| Node* three = shadowRoot->getElementById("three"); |
| |
| EXPECT_EQ(Position(one, 0), |
| firstEditablePositionAfterPositionInRoot(Position(one, 0), *host)); |
| EXPECT_EQ( |
| Position(one->firstChild(), 0), |
| firstEditableVisiblePositionAfterPositionInRoot(Position(one, 0), *host) |
| .deepEquivalent()); |
| |
| EXPECT_EQ(PositionInFlatTree(one, 0), |
| firstEditablePositionAfterPositionInRoot(PositionInFlatTree(one, 0), |
| *host)); |
| EXPECT_EQ(PositionInFlatTree(two->firstChild(), 2), |
| firstEditableVisiblePositionAfterPositionInRoot( |
| PositionInFlatTree(one, 0), *host) |
| .deepEquivalent()); |
| |
| EXPECT_EQ( |
| Position::firstPositionInNode(host), |
| firstEditablePositionAfterPositionInRoot(Position(three, 0), *host)); |
| EXPECT_EQ( |
| Position(one->firstChild(), 0), |
| firstEditableVisiblePositionAfterPositionInRoot(Position(three, 0), *host) |
| .deepEquivalent()); |
| EXPECT_EQ(PositionInFlatTree::afterNode(host), |
| firstEditablePositionAfterPositionInRoot( |
| PositionInFlatTree(three, 0), *host)); |
| EXPECT_EQ(PositionInFlatTree::lastPositionInNode(host), |
| firstEditableVisiblePositionAfterPositionInRoot( |
| PositionInFlatTree(three, 0), *host) |
| .deepEquivalent()); |
| } |
| |
| TEST_F(EditingUtilitiesTest, enclosingBlock) { |
| const char* bodyContent = "<p id='host'><b id='one'>11</b></p>"; |
| const char* shadowContent = |
| "<content select=#two></content><div id='three'><content " |
| "select=#one></content></div>"; |
| setBodyContent(bodyContent); |
| ShadowRoot* shadowRoot = setShadowContent(shadowContent, "host"); |
| Node* host = document().getElementById("host"); |
| Node* one = document().getElementById("one"); |
| Node* three = shadowRoot->getElementById("three"); |
| |
| EXPECT_EQ(host, enclosingBlock(Position(one, 0), CannotCrossEditingBoundary)); |
| EXPECT_EQ(three, enclosingBlock(PositionInFlatTree(one, 0), |
| CannotCrossEditingBoundary)); |
| } |
| |
| TEST_F(EditingUtilitiesTest, enclosingNodeOfType) { |
| const char* bodyContent = "<p id='host'><b id='one'>11</b></p>"; |
| const char* shadowContent = |
| "<content select=#two></content><div id='three'><content " |
| "select=#one></div></content>"; |
| setBodyContent(bodyContent); |
| ShadowRoot* shadowRoot = setShadowContent(shadowContent, "host"); |
| Node* host = document().getElementById("host"); |
| Node* one = document().getElementById("one"); |
| Node* three = shadowRoot->getElementById("three"); |
| |
| EXPECT_EQ(host, enclosingNodeOfType(Position(one, 0), isEnclosingBlock)); |
| EXPECT_EQ(three, |
| enclosingNodeOfType(PositionInFlatTree(one, 0), isEnclosingBlock)); |
| } |
| |
| TEST_F(EditingUtilitiesTest, isEditablePositionWithTable) { |
| // We would like to have below DOM tree without HTML, HEAD and BODY element. |
| // <table id=table><caption>foo</caption></table> |
| // However, |setBodyContent()| automatically creates HTML, HEAD and BODY |
| // element. So, we build DOM tree manually. |
| // Note: This is unusual HTML taken from http://crbug.com/574230 |
| Element* table = document().createElement("table"); |
| table->setInnerHTML("<caption>foo</caption>"); |
| while (document().firstChild()) |
| document().firstChild()->remove(); |
| document().appendChild(table); |
| document().setDesignMode("on"); |
| updateAllLifecyclePhases(); |
| |
| EXPECT_FALSE(isEditablePosition(Position(table, 0))); |
| } |
| |
| TEST_F(EditingUtilitiesTest, tableElementJustBefore) { |
| const char* bodyContent = |
| "<div contenteditable id=host><table " |
| "id=table><tr><td>1</td></tr></table><b id=two>22</b></div>"; |
| const char* shadowContent = |
| "<content select=#two></content><content select=#table></content>"; |
| setBodyContent(bodyContent); |
| setShadowContent(shadowContent, "host"); |
| Node* host = document().getElementById("host"); |
| Node* table = document().getElementById("table"); |
| |
| EXPECT_EQ(table, tableElementJustBefore(VisiblePosition::afterNode(table))); |
| EXPECT_EQ(table, tableElementJustBefore( |
| VisiblePositionInFlatTree::afterNode(table))); |
| |
| EXPECT_EQ(table, |
| tableElementJustBefore(VisiblePosition::lastPositionInNode(table))); |
| EXPECT_EQ(table, tableElementJustBefore(createVisiblePosition( |
| PositionInFlatTree::lastPositionInNode(table)))); |
| |
| EXPECT_EQ(nullptr, |
| tableElementJustBefore(createVisiblePosition(Position(host, 2)))); |
| EXPECT_EQ(table, tableElementJustBefore( |
| createVisiblePosition(PositionInFlatTree(host, 2)))); |
| |
| EXPECT_EQ(nullptr, tableElementJustBefore(VisiblePosition::afterNode(host))); |
| EXPECT_EQ(nullptr, |
| tableElementJustBefore(VisiblePositionInFlatTree::afterNode(host))); |
| |
| EXPECT_EQ(nullptr, |
| tableElementJustBefore(VisiblePosition::lastPositionInNode(host))); |
| EXPECT_EQ(table, tableElementJustBefore(createVisiblePosition( |
| PositionInFlatTree::lastPositionInNode(host)))); |
| } |
| |
| TEST_F(EditingUtilitiesTest, lastEditablePositionBeforePositionInRoot) { |
| const char* bodyContent = |
| "<p id='host' contenteditable><b id='one'>1</b><b id='two'>22</b></p>"; |
| const char* shadowContent = |
| "<content select=#two></content><content select=#one></content><b " |
| "id='three'>333</b>"; |
| setBodyContent(bodyContent); |
| ShadowRoot* shadowRoot = setShadowContent(shadowContent, "host"); |
| Element* host = document().getElementById("host"); |
| Node* one = document().getElementById("one"); |
| Node* two = document().getElementById("two"); |
| Node* three = shadowRoot->getElementById("three"); |
| |
| EXPECT_EQ(Position(one, 0), |
| lastEditablePositionBeforePositionInRoot(Position(one, 0), *host)); |
| EXPECT_EQ( |
| Position(one->firstChild(), 0), |
| lastEditableVisiblePositionBeforePositionInRoot(Position(one, 0), *host) |
| .deepEquivalent()); |
| |
| EXPECT_EQ(PositionInFlatTree(one, 0), |
| lastEditablePositionBeforePositionInRoot(PositionInFlatTree(one, 0), |
| *host)); |
| EXPECT_EQ(PositionInFlatTree(two->firstChild(), 2), |
| lastEditableVisiblePositionBeforePositionInRoot( |
| PositionInFlatTree(one, 0), *host) |
| .deepEquivalent()); |
| |
| EXPECT_EQ( |
| Position::firstPositionInNode(host), |
| lastEditablePositionBeforePositionInRoot(Position(three, 0), *host)); |
| EXPECT_EQ( |
| Position(one->firstChild(), 0), |
| lastEditableVisiblePositionBeforePositionInRoot(Position(three, 0), *host) |
| .deepEquivalent()); |
| EXPECT_EQ(PositionInFlatTree::firstPositionInNode(host), |
| lastEditablePositionBeforePositionInRoot( |
| PositionInFlatTree(three, 0), *host)); |
| EXPECT_EQ(PositionInFlatTree(two->firstChild(), 0), |
| lastEditableVisiblePositionBeforePositionInRoot( |
| PositionInFlatTree(three, 0), *host) |
| .deepEquivalent()); |
| } |
| |
| TEST_F(EditingUtilitiesTest, NextNodeIndex) { |
| const char* bodyContent = |
| "<p id='host'>00<b id='one'>11</b><b id='two'>22</b>33</p>"; |
| const char* shadowContent = |
| "<content select=#two></content><content select=#one></content>"; |
| setBodyContent(bodyContent); |
| setShadowContent(shadowContent, "host"); |
| Node* host = document().getElementById("host"); |
| Node* two = document().getElementById("two"); |
| |
| EXPECT_EQ( |
| Position(host, 3), |
| nextPositionOf(Position(two, 2), PositionMoveType::GraphemeCluster)); |
| EXPECT_EQ(PositionInFlatTree(host, 1), |
| nextPositionOf(PositionInFlatTree(two, 2), |
| PositionMoveType::GraphemeCluster)); |
| } |
| |
| TEST_F(EditingUtilitiesTest, NextVisuallyDistinctCandidate) { |
| const char* bodyContent = |
| "<p id='host'>00<b id='one'>11</b><b id='two'>22</b><b " |
| "id='three'>33</b></p>"; |
| const char* shadowContent = |
| "<content select=#two></content><content select=#one></content><content " |
| "select=#three></content>"; |
| setBodyContent(bodyContent); |
| setShadowContent(shadowContent, "host"); |
| Node* one = document().getElementById("one"); |
| Node* two = document().getElementById("two"); |
| Node* three = document().getElementById("three"); |
| |
| EXPECT_EQ(Position(two->firstChild(), 1), |
| nextVisuallyDistinctCandidate(Position(one, 1))); |
| EXPECT_EQ(PositionInFlatTree(three->firstChild(), 1), |
| nextVisuallyDistinctCandidate(PositionInFlatTree(one, 1))); |
| } |
| |
| TEST_F(EditingUtilitiesTest, AreaIdenticalElements) { |
| setBodyContent( |
| "<style>li:nth-child(even) { -webkit-user-modify: read-write; " |
| "}</style><ul><li>first item</li><li>second item</li><li " |
| "class=foo>third</li><li>fourth</li></ul>"); |
| StaticElementList* items = |
| document().querySelectorAll("li", ASSERT_NO_EXCEPTION); |
| DCHECK_EQ(items->length(), 4u); |
| |
| EXPECT_FALSE(areIdenticalElements(*items->item(0)->firstChild(), |
| *items->item(1)->firstChild())) |
| << "Can't merge non-elements. e.g. Text nodes"; |
| |
| // Compare a LI and a UL. |
| EXPECT_FALSE( |
| areIdenticalElements(*items->item(0), *items->item(0)->parentNode())) |
| << "Can't merge different tag names."; |
| |
| EXPECT_FALSE(areIdenticalElements(*items->item(0), *items->item(2))) |
| << "Can't merge a element with no attributes and another element with an " |
| "attribute."; |
| |
| // We can't use contenteditable attribute to make editability difference |
| // because the hasEquivalentAttributes check is done earier. |
| EXPECT_FALSE(areIdenticalElements(*items->item(0), *items->item(1))) |
| << "Can't merge non-editable nodes."; |
| |
| EXPECT_TRUE(areIdenticalElements(*items->item(1), *items->item(3))); |
| } |
| |
| TEST_F(EditingUtilitiesTest, uncheckedPreviousNextOffset_FirstLetter) { |
| setBodyContent( |
| "<style>p::first-letter {color:red;}</style><p id='target'>abc</p>"); |
| Node* node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(2, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(2, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 2)); |
| |
| updateAllLifecyclePhases(); |
| EXPECT_NE(nullptr, node->layoutObject()); |
| EXPECT_EQ(2, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(2, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 2)); |
| } |
| |
| TEST_F(EditingUtilitiesTest, uncheckedPreviousNextOffset_textTransform) { |
| setBodyContent( |
| "<style>p {text-transform:uppercase}</style><p id='target'>abc</p>"); |
| Node* node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(2, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(2, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 2)); |
| |
| updateAllLifecyclePhases(); |
| EXPECT_NE(nullptr, node->layoutObject()); |
| EXPECT_EQ(2, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(2, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 2)); |
| } |
| |
| // Following breaking rules come from http://unicode.org/reports/tr29/ |
| // Note that some of rules are in draft. Also see |
| // http://www.unicode.org/reports/tr29/proposed.html |
| TEST_F(EditingUtilitiesTest, uncheckedPreviousNextOffset) { |
| // GB1: Break at the start of text. |
| setBodyContent("<p id='target'>a</p>"); |
| Node* node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| |
| // GB2: Break at the end of text. |
| setBodyContent("<p id='target'>a</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| |
| // GB3: Do not break between CR and LF. |
| setBodyContent("<p id='target'>a
b</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(3, previousGraphemeBoundaryOf(node, 4)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(4, nextGraphemeBoundaryOf(node, 3)); |
| |
| // GB4,GB5: Break before and after CR/LF/Control. |
| setBodyContent("<p id='target'>a
b</p>"); // CR |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(2, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(2, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 2)); |
| setBodyContent("<p id='target'>a
b</p>"); // LF |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(2, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(2, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 2)); |
| // U+00AD(SOFT HYPHEN) has Control property. |
| setBodyContent("<p id='target'>a­b</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(2, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(2, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 2)); |
| |
| // GB6: Don't break Hangul sequence. |
| const std::string L = |
| "ᄀ"; // U+1100 (HANGUL CHOSEONG KIYEOK) has L property. |
| const std::string V = |
| "ᅠ"; // U+1160 (HANGUL JUNGSEONG FILLER) has V property. |
| const std::string LV = |
| "가"; // U+AC00 (HANGUL SYLLABLE GA) has LV property. |
| const std::string LVT = |
| "각"; // U+AC01 (HANGUL SYLLABLE GAG) has LVT property. |
| const std::string T = |
| "ᆨ"; // U+11A8 (HANGUL JONGSEONG KIYEOK) has T property. |
| setBodyContent("<p id='target'>a" + L + L + "b</p>"); // L x L |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(3, previousGraphemeBoundaryOf(node, 4)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(4, nextGraphemeBoundaryOf(node, 3)); |
| setBodyContent("<p id='target'>a" + L + V + "b</p>"); // L x V |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(3, previousGraphemeBoundaryOf(node, 4)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(4, nextGraphemeBoundaryOf(node, 3)); |
| setBodyContent("<p id='target'>a" + L + LV + "b</p>"); // L x LV |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(3, previousGraphemeBoundaryOf(node, 4)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(4, nextGraphemeBoundaryOf(node, 3)); |
| setBodyContent("<p id='target'>a" + L + LVT + "b</p>"); // L x LVT |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(3, previousGraphemeBoundaryOf(node, 4)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(4, nextGraphemeBoundaryOf(node, 3)); |
| |
| // GB7: Don't break Hangul sequence. |
| setBodyContent("<p id='target'>a" + LV + V + "b</p>"); // LV x V |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(3, previousGraphemeBoundaryOf(node, 4)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(4, nextGraphemeBoundaryOf(node, 3)); |
| setBodyContent("<p id='target'>a" + LV + T + "b</p>"); // LV x T |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(3, previousGraphemeBoundaryOf(node, 4)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(4, nextGraphemeBoundaryOf(node, 3)); |
| setBodyContent("<p id='target'>a" + V + V + "b</p>"); // V x V |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(3, previousGraphemeBoundaryOf(node, 4)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(4, nextGraphemeBoundaryOf(node, 3)); |
| setBodyContent("<p id='target'>a" + V + T + "b</p>"); // V x T |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(3, previousGraphemeBoundaryOf(node, 4)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(4, nextGraphemeBoundaryOf(node, 3)); |
| |
| // GB8: Don't break Hangul sequence. |
| setBodyContent("<p id='target'>a" + LVT + T + "b</p>"); // LVT x T |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(3, previousGraphemeBoundaryOf(node, 4)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(4, nextGraphemeBoundaryOf(node, 3)); |
| setBodyContent("<p id='target'>a" + T + T + "b</p>"); // T x T |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(3, previousGraphemeBoundaryOf(node, 4)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(4, nextGraphemeBoundaryOf(node, 3)); |
| |
| // Break other Hangul syllable combination. See test of GB999. |
| |
| // GB8a: Don't break between regional indicator if there are even numbered |
| // regional indicator symbols before. |
| // U+1F1FA is REGIONAL INDICATOR SYMBOL LETTER U. |
| // U+1F1F8 is REGIONAL INDICATOR SYMBOL LETTER S. |
| const std::string flag = "🇺🇸"; // US flag. |
| // ^(RI RI)* RI x RI |
| setBodyContent("<p id='target'>" + flag + flag + flag + flag + "a</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(16, previousGraphemeBoundaryOf(node, 17)); |
| EXPECT_EQ(12, previousGraphemeBoundaryOf(node, 16)); |
| EXPECT_EQ(8, previousGraphemeBoundaryOf(node, 12)); |
| EXPECT_EQ(4, previousGraphemeBoundaryOf(node, 8)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 4)); |
| EXPECT_EQ(4, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(8, nextGraphemeBoundaryOf(node, 4)); |
| EXPECT_EQ(12, nextGraphemeBoundaryOf(node, 8)); |
| EXPECT_EQ(16, nextGraphemeBoundaryOf(node, 12)); |
| EXPECT_EQ(17, nextGraphemeBoundaryOf(node, 16)); |
| |
| // GB8c: Don't break between regional indicator if there are even numbered |
| // regional indicator symbols before. |
| // [^RI] (RI RI)* RI x RI |
| setBodyContent("<p id='target'>a" + flag + flag + flag + flag + "b</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(17, previousGraphemeBoundaryOf(node, 18)); |
| EXPECT_EQ(13, previousGraphemeBoundaryOf(node, 17)); |
| EXPECT_EQ(9, previousGraphemeBoundaryOf(node, 13)); |
| EXPECT_EQ(5, previousGraphemeBoundaryOf(node, 9)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 5)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(5, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(9, nextGraphemeBoundaryOf(node, 5)); |
| EXPECT_EQ(13, nextGraphemeBoundaryOf(node, 9)); |
| EXPECT_EQ(17, nextGraphemeBoundaryOf(node, 13)); |
| EXPECT_EQ(18, nextGraphemeBoundaryOf(node, 17)); |
| |
| // GB8c: Break if there is an odd number of regional indicator symbols before. |
| setBodyContent("<p id='target'>a" + flag + flag + flag + flag + |
| "🇸b</p>"); // RI ÷ RI |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(19, previousGraphemeBoundaryOf(node, 20)); |
| EXPECT_EQ(17, previousGraphemeBoundaryOf(node, 19)); |
| EXPECT_EQ(13, previousGraphemeBoundaryOf(node, 17)); |
| EXPECT_EQ(9, previousGraphemeBoundaryOf(node, 13)); |
| EXPECT_EQ(5, previousGraphemeBoundaryOf(node, 9)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 5)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(5, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(9, nextGraphemeBoundaryOf(node, 5)); |
| EXPECT_EQ(13, nextGraphemeBoundaryOf(node, 9)); |
| EXPECT_EQ(17, nextGraphemeBoundaryOf(node, 13)); |
| EXPECT_EQ(19, nextGraphemeBoundaryOf(node, 17)); |
| EXPECT_EQ(20, nextGraphemeBoundaryOf(node, 19)); |
| |
| // GB9: Do not break before extending characters or ZWJ. |
| // U+0300(COMBINING GRAVE ACCENT) has Extend property. |
| setBodyContent("<p id='target'>àb</p>"); // x Extend |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(2, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(2, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 2)); |
| // U+200D is ZERO WIDTH JOINER. |
| setBodyContent("<p id='target'>a‍b</p>"); // x ZWJ |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(2, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(2, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 2)); |
| |
| // GB9a: Do not break before SpacingMarks. |
| // U+0903(DEVANAGARI SIGN VISARGA) has SpacingMark property. |
| setBodyContent("<p id='target'>aःb</p>"); // x SpacingMark |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(2, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(2, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 2)); |
| |
| // GB9b: Do not break after Prepend. |
| // TODO(nona): Introduce Prepend test case once ICU grabs Unicode 9.0. |
| |
| // For https://bugs.webkit.org/show_bug.cgi?id=24342 |
| // The break should happens after Thai character. |
| setBodyContent("<p id='target'>aเb</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(2, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(2, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 2)); |
| |
| // Blink customization: Don't break before Japanese half-width katakana voiced |
| // marks. |
| setBodyContent("<p id='target'>aｶﾞb</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(3, previousGraphemeBoundaryOf(node, 4)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(4, nextGraphemeBoundaryOf(node, 3)); |
| |
| // Additional rule for IndicSyllabicCategory=Virama: Do not break after that. |
| // See |
| // http://www.unicode.org/Public/9.0.0/ucd/IndicSyllabicCategory-9.0.0d2.txt |
| // U+0905 is DEVANAGARI LETTER A. This has Extend property. |
| // U+094D is DEVANAGARI SIGN VIRAMA. This has Virama property. |
| // U+0915 is DEVANAGARI LETTER KA. |
| setBodyContent("<p id='target'>aअ्कb</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(4, previousGraphemeBoundaryOf(node, 5)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 4)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(4, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(5, nextGraphemeBoundaryOf(node, 4)); |
| // U+0E01 is THAI CHARACTER KO KAI |
| // U+0E3A is THAI CHARACTER PHINTHU |
| // Should break after U+0E3A since U+0E3A has Virama property but not listed |
| // in IndicSyllabicCategory=Virama. |
| setBodyContent("<p id='target'>aกฺกb</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(4, previousGraphemeBoundaryOf(node, 5)); |
| EXPECT_EQ(3, previousGraphemeBoundaryOf(node, 4)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(4, nextGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(5, nextGraphemeBoundaryOf(node, 4)); |
| |
| // GB10: Do not break within emoji modifier. |
| // U+1F385(FATHER CHRISTMAS) has E_Base property. |
| // U+1F3FB(EMOJI MODIFIER FITZPATRICK TYPE-1-2) has E_Modifier property. |
| setBodyContent( |
| "<p id='target'>a🎅🏻b</p>"); // E_Base x E_Modifier |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(5, previousGraphemeBoundaryOf(node, 6)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 5)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(5, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(6, nextGraphemeBoundaryOf(node, 5)); |
| // U+1F466(BOY) has EBG property. |
| setBodyContent( |
| "<p id='target'>a👦🏻b</p>"); // EBG x E_Modifier |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(5, previousGraphemeBoundaryOf(node, 6)); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 5)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(5, nextGraphemeBoundaryOf(node, 1)); |
| EXPECT_EQ(6, nextGraphemeBoundaryOf(node, 5)); |
| |
| // GB11: Do not break within ZWJ emoji sequence. |
| // U+2764(HEAVY BLACK HEART) has Glue_After_Zwj property. |
| setBodyContent( |
| "<p id='target'>a‍❤b</p>"); // ZWJ x Glue_After_Zwj |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(3, previousGraphemeBoundaryOf(node, 4)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(4, nextGraphemeBoundaryOf(node, 3)); |
| setBodyContent("<p id='target'>a‍👦b</p>"); // ZWJ x EBG |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(4, previousGraphemeBoundaryOf(node, 5)); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 4)); |
| EXPECT_EQ(4, nextGraphemeBoundaryOf(node, 0)); |
| EXPECT_EQ(5, nextGraphemeBoundaryOf(node, 4)); |
| |
| // Not only Glue_After_ZWJ or EBG but also other emoji shouldn't break |
| // before ZWJ. |
| // U+1F5FA(WORLD MAP) doesn't have either Glue_After_Zwj or EBG but has |
| // Emoji property. |
| setBodyContent("<p id='target'>‍🗺</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(0, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(3, nextGraphemeBoundaryOf(node, 0)); |
| |
| // GB999: Otherwise break everywhere. |
| // Breaks between Hangul syllable except for GB6, GB7, GB8. |
| setBodyContent("<p id='target'>" + L + T + "</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| setBodyContent("<p id='target'>" + V + L + "</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| setBodyContent("<p id='target'>" + V + LV + "</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| setBodyContent("<p id='target'>" + V + LVT + "</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| setBodyContent("<p id='target'>" + LV + L + "</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| setBodyContent("<p id='target'>" + LV + LV + "</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| setBodyContent("<p id='target'>" + LV + LVT + "</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| setBodyContent("<p id='target'>" + LVT + L + "</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| setBodyContent("<p id='target'>" + LVT + V + "</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| setBodyContent("<p id='target'>" + LVT + LV + "</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| setBodyContent("<p id='target'>" + LVT + LVT + "</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| setBodyContent("<p id='target'>" + T + L + "</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| setBodyContent("<p id='target'>" + T + V + "</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| setBodyContent("<p id='target'>" + T + LV + "</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| setBodyContent("<p id='target'>" + T + LVT + "</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| |
| // For GB10, if base emoji character is not E_Base or EBG, break happens |
| // before E_Modifier. |
| setBodyContent("<p id='target'>a🏻</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 3)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| // U+1F5FA(WORLD MAP) doesn't have either E_Base or EBG property. |
| setBodyContent("<p id='target'>🗺🏻</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(2, previousGraphemeBoundaryOf(node, 4)); |
| EXPECT_EQ(2, nextGraphemeBoundaryOf(node, 0)); |
| |
| // For GB11, if trailing character is not Glue_After_Zwj or EBG, break happens |
| // after ZWJ. |
| // U+1F5FA(WORLD MAP) doesn't have either Glue_After_Zwj or EBG. |
| setBodyContent("<p id='target'>‍a</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(1, previousGraphemeBoundaryOf(node, 2)); |
| EXPECT_EQ(1, nextGraphemeBoundaryOf(node, 0)); |
| } |
| |
| TEST_F(EditingUtilitiesTest, previousPositionOf_Backspace) { |
| // BMP characters. Only one code point should be deleted. |
| setBodyContent("<p id='target'>abc</p>"); |
| Node* node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(Position(node, 2), |
| previousPositionOf(Position(node, 3), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 1), |
| previousPositionOf(Position(node, 2), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 0), |
| previousPositionOf(Position(node, 1), |
| PositionMoveType::BackwardDeletion)); |
| } |
| |
| TEST_F(EditingUtilitiesTest, previousPositionOf_Backspace_FirstLetter) { |
| setBodyContent( |
| "<style>p::first-letter {color:red;}</style><p id='target'>abc</p>"); |
| Node* node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(Position(node, 2), |
| previousPositionOf(Position(node, 3), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 1), |
| previousPositionOf(Position(node, 2), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 0), |
| previousPositionOf(Position(node, 1), |
| PositionMoveType::BackwardDeletion)); |
| |
| setBodyContent( |
| "<style>p::first-letter {color:red;}</style><p id='target'>(a)bc</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(Position(node, 4), |
| previousPositionOf(Position(node, 5), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 3), |
| previousPositionOf(Position(node, 4), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 2), |
| previousPositionOf(Position(node, 3), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 1), |
| previousPositionOf(Position(node, 2), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 0), |
| previousPositionOf(Position(node, 1), |
| PositionMoveType::BackwardDeletion)); |
| } |
| |
| TEST_F(EditingUtilitiesTest, previousPositionOf_Backspace_TextTransform) { |
| // Uppercase of ß will be transformed to SS. |
| setBodyContent( |
| "<style>p {text-transform:uppercase}</style><p " |
| "id='target'>ßabc</p>"); |
| Node* node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(Position(node, 3), |
| previousPositionOf(Position(node, 4), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 2), |
| previousPositionOf(Position(node, 3), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 1), |
| previousPositionOf(Position(node, 2), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 0), |
| previousPositionOf(Position(node, 1), |
| PositionMoveType::BackwardDeletion)); |
| } |
| |
| TEST_F(EditingUtilitiesTest, previousPositionOf_Backspace_SurrogatePairs) { |
| // Supplementary plane characters. Only one code point should be deleted. |
| // 👁 is EYE. |
| setBodyContent("<p id='target'>👁👁👁</p>"); |
| Node* node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(Position(node, 4), |
| previousPositionOf(Position(node, 6), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 2), |
| previousPositionOf(Position(node, 4), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 0), |
| previousPositionOf(Position(node, 2), |
| PositionMoveType::BackwardDeletion)); |
| |
| // BMP and Supplementary plane case. |
| setBodyContent("<p id='target'>👁a👁a</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(Position(node, 5), |
| previousPositionOf(Position(node, 6), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 3), |
| previousPositionOf(Position(node, 5), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 2), |
| previousPositionOf(Position(node, 3), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 0), |
| previousPositionOf(Position(node, 2), |
| PositionMoveType::BackwardDeletion)); |
| |
| // Edge case: broken surrogate pairs. |
| setBodyContent( |
| "<p id='target'>�</p>"); // � is unpaired lead surrogate. |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(Position(node, 0), |
| previousPositionOf(Position(node, 1), |
| PositionMoveType::BackwardDeletion)); |
| |
| // � is unpaired lead surrogate. |
| setBodyContent("<p id='target'>👁�👁</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(Position(node, 3), |
| previousPositionOf(Position(node, 5), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 2), |
| previousPositionOf(Position(node, 3), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 0), |
| previousPositionOf(Position(node, 2), |
| PositionMoveType::BackwardDeletion)); |
| |
| setBodyContent( |
| "<p id='target'>a�a</p>"); // � is unpaired lead surrogate. |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(Position(node, 2), |
| previousPositionOf(Position(node, 3), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 1), |
| previousPositionOf(Position(node, 2), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 0), |
| previousPositionOf(Position(node, 1), |
| PositionMoveType::BackwardDeletion)); |
| |
| setBodyContent( |
| "<p id='target'>�</p>"); // � is unpaired trail surrogate. |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(Position(node, 0), |
| previousPositionOf(Position(node, 1), |
| PositionMoveType::BackwardDeletion)); |
| |
| // � is unpaired trail surrogate. |
| setBodyContent("<p id='target'>👁�👁</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(Position(node, 3), |
| previousPositionOf(Position(node, 5), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 2), |
| previousPositionOf(Position(node, 3), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 0), |
| previousPositionOf(Position(node, 2), |
| PositionMoveType::BackwardDeletion)); |
| |
| // � is unpaired trail surrogate. |
| setBodyContent("<p id='target'>a�a</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(Position(node, 2), |
| previousPositionOf(Position(node, 3), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 1), |
| previousPositionOf(Position(node, 2), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 0), |
| previousPositionOf(Position(node, 1), |
| PositionMoveType::BackwardDeletion)); |
| |
| // Edge case: specify middle of surrogate pairs. |
| setBodyContent("<p id='target'>👁👁👁</p>"); |
| node = document().getElementById("target")->firstChild(); |
| EXPECT_EQ(Position(node, 4), |
| previousPositionOf(Position(node, 5), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 2), |
| previousPositionOf(Position(node, 3), |
| PositionMoveType::BackwardDeletion)); |
| EXPECT_EQ(Position(node, 0), |
| previousPositionOf(Position(node, 1), |
| PositionMoveType::BackwardDeletion)); |
| } |
| |
| } // namespace blink |
