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<!DOCTYPE HTML>
<html>
<!--
-->
<head>
<meta charset="utf-8">
<title>Test for Bug 1315065</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/EventUtils.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<div contenteditable><p>abc<br></p></div>
<script type="application/javascript">
/** Test for Bug 1315065 **/
SimpleTest.waitForExplicitFinish();
SimpleTest.waitForFocus(() => {
var editor = document.getElementsByTagName("div")[0];
function initForBackspace(aSelectionCollapsedTo /* = 0 ~ 3 */) {
editor.innerHTML = "<p id='p'>abc<br></p>";
var p = document.getElementById("p");
// FYI: We cannot inserting empty text nodes as expected with
// Node.appendChild() nor Node.insertBefore(). Therefore, let's use
// Range.insertNode() like actual web apps.
var selection = window.getSelection();
selection.collapse(p, 1);
var range = selection.getRangeAt(0);
var emptyTextNode3 = document.createTextNode("");
range.insertNode(emptyTextNode3);
var emptyTextNode2 = document.createTextNode("");
range.insertNode(emptyTextNode2);
var emptyTextNode1 = document.createTextNode("");
range.insertNode(emptyTextNode1);
is(p.childNodes.length, 5, "Failed to initialize the editor");
is(p.childNodes.item(1), emptyTextNode1, "1st text node should be emptyTextNode1");
is(p.childNodes.item(2), emptyTextNode2, "2nd text node should be emptyTextNode2");
is(p.childNodes.item(3), emptyTextNode3, "3rd text node should be emptyTextNode3");
switch (aSelectionCollapsedTo) {
case 0:
selection.collapse(p.firstChild, 3); // next to 'c'
break;
case 1:
selection.collapse(emptyTextNode1, 0);
break;
case 2:
selection.collapse(emptyTextNode2, 0);
break;
case 3:
selection.collapse(emptyTextNode3, 0);
break;
default:
ok(false, "aSelectionCollapsedTo is illegal value");
}
}
for (let i = 0; i < 4; i++) {
const kDescription = i == 0 ? "Backspace from immediately after the last character" :
"Backspace from " + i + "th empty text node";
editor.focus();
initForBackspace(i);
synthesizeKey("KEY_Backspace");
let p = document.getElementById("p");
ok(p, kDescription + ": <p> element shouldn't be removed by Backspace key press");
is(p.tagName.toLowerCase(), "p", kDescription + ": <p> element shouldn't be removed by Backspace key press");
// When Backspace key is pressed even in empty text nodes, Gecko should not remove empty text nodes for now
// because we should keep our traditional behavior (same as Edge) for backward compatibility as far as possible.
// In this case, Chromium removes all empty text nodes, but Edge doesn't remove any empty text nodes.
is(p.childNodes.length, 5, kDescription + ": <p> should have 5 children after pressing Backspace key");
is(p.childNodes.item(0).textContent, "ab", kDescription + ": 'c' should be removed by pressing Backspace key");
is(p.childNodes.item(1).textContent, "", kDescription + ": 1st empty text node should not be removed by pressing Backspace key");
is(p.childNodes.item(2).textContent, "", kDescription + ": 2nd empty text node should not be removed by pressing Backspace key");
is(p.childNodes.item(3).textContent, "", kDescription + ": 3rd empty text node should not be removed by pressing Backspace key");
editor.blur();
}
function initForDelete(aSelectionCollapsedTo /* = 0 ~ 3 */) {
editor.innerHTML = "<p id='p'>abc<br></p>";
var p = document.getElementById("p");
// FYI: We cannot inserting empty text nodes as expected with
// Node.appendChild() nor Node.insertBefore(). Therefore, let's use
// Range.insertNode() like actual web apps.
var selection = window.getSelection();
selection.collapse(p, 0);
var range = selection.getRangeAt(0);
var emptyTextNode1 = document.createTextNode("");
range.insertNode(emptyTextNode1);
var emptyTextNode2 = document.createTextNode("");
range.insertNode(emptyTextNode2);
var emptyTextNode3 = document.createTextNode("");
range.insertNode(emptyTextNode3);
is(p.childNodes.length, 5, "Failed to initialize the editor");
is(p.childNodes.item(0), emptyTextNode3, "1st text node should be emptyTextNode3");
is(p.childNodes.item(1), emptyTextNode2, "2nd text node should be emptyTextNode2");
is(p.childNodes.item(2), emptyTextNode1, "3rd text node should be emptyTextNode1");
switch (aSelectionCollapsedTo) {
case 0:
selection.collapse(p.childNodes.item(3), 0); // next to 'a'
break;
case 1:
selection.collapse(emptyTextNode1, 0);
break;
case 2:
selection.collapse(emptyTextNode2, 0);
break;
case 3:
selection.collapse(emptyTextNode3, 0);
break;
default:
ok(false, "aSelectionCollapsedTo is illegal value");
}
}
for (let i = 0; i < 4; i++) {
const kDescription = i == 0 ? "Delete from immediately before the first character" :
"Delete from " + i + "th empty text node";
editor.focus();
initForDelete(i);
synthesizeKey("KEY_Delete");
var p = document.getElementById("p");
ok(p, kDescription + ": <p> element shouldn't be removed by Delete key press");
is(p.tagName.toLowerCase(), "p", kDescription + ": <p> element shouldn't be removed by Delete key press");
if (i == 0) {
// If Delete key is pressed in non-empty text node, only the text node should be modified.
// This is same behavior as Chromium, but different from Edge. Edge removes all empty text nodes in this case.
is(p.childNodes.length, 5, kDescription + ": <p> should have only 2 children after pressing Delete key (empty text nodes should be removed");
is(p.childNodes.item(0).textContent, "", kDescription + ": 1st empty text node should not be removed by pressing Delete key");
is(p.childNodes.item(1).textContent, "", kDescription + ": 2nd empty text node should not be removed by pressing Delete key");
is(p.childNodes.item(2).textContent, "", kDescription + ": 3rd empty text node should not be removed by pressing Delete key");
is(p.childNodes.item(3).textContent, "bc", kDescription + ": 'a' should be removed by pressing Delete key");
} else {
// If Delete key is pressed in an empty text node, it and following empty text nodes should be removed and the non-empty text node should be modified.
// This is same behavior as Chromium, but different from Edge. Edge removes all empty text nodes in this case.
var expectedEmptyTextNodes = 3 - i;
is(p.childNodes.length, expectedEmptyTextNodes + 2, kDescription + ": <p> should have only " + i + " children after pressing Delete key (" + i + " empty text nodes should be removed");
is(p.childNodes.item(expectedEmptyTextNodes).textContent, "bc", kDescription + ": empty text nodes and 'a' should be removed by pressing Delete key");
}
editor.blur();
}
SimpleTest.finish();
});
</script>
</body>
</html>