test_nsIHTMLEditor_getSelectedElement.html

<!DOCTYPE>

<html>

<head>

  <title>Test for nsIHTMLEditor.getSelectedElement()</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <script src="/tests/SimpleTest/EventUtils.js"></script>

  <link rel="stylesheet" href="/tests/SimpleTest/test.css">

</head>

<body>

<div id="display">

</div>

<div id="content" contenteditable></div>

<img src="green.png"><!-- necessary to load this image before start testing -->

<pre id="test">

</pre>

<script class="testbody" type="application/javascript">

SimpleTest.waitForExplicitFinish();

SimpleTest.waitForFocus(async function() {

  let editor = document.getElementById("content");

  let selection = window.getSelection();

  // nsIHTMLEditor.getSelectedElement() is probably designed to retrieve

  // a[href]:not([href=""]), a[name]:not([name=""]), or void element like

  // <img> element.  When user selects usual inline elements with dragging,

  // double-clicking, Gecko sets start and/or end to point in text nodes

  // as far as possible.  Therefore, this API users don't expect that this

  // returns usual inline elements like <b> element.

  // So, we need to check user's operation works fine.

  for (let eatSpaceToNextWord of [true, false]) {

    await SpecialPowers.pushPrefEnv({"set": [["layout.word_select.eat_space_to_next_word", eatSpaceToNextWord]]});

                       "<p>An anchor with href attr <a href=\"about:blank\">is</a> here.</p>";

    editor.focus();

    editor.scrollTop; // flush layout.

    let b = editor.firstChild.firstChild.nextSibling;

    let i = b.nextSibling.nextSibling;

    let img = editor.firstChild.nextSibling.firstChild.nextSibling;

    let href = editor.firstChild.nextSibling.nextSibling.firstChild.nextSibling;

    // double clicking usual inline element shouldn't cause "selecting" the element.

    synthesizeMouseAtCenter(b, {clickCount: 1});

    synthesizeMouseAtCenter(b, {clickCount: 2});

    is(selection.getRangeAt(0).startContainer, b.previousSibling,

       `#0-1 Double-clicking in <b> element should set start of selection to end of previous text node (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    is(selection.getRangeAt(0).startOffset, b.previousSibling.length,

       `#0-1 Double-clicking in <b> element should set start of selection to end of previous text node (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    is(selection.getRangeAt(0).endContainer, b.nextSibling,

       `#0-1 Double-clicking in <b> element should set end of selection to start of next text node (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    is(selection.getRangeAt(0).endOffset, eatSpaceToNextWord ? 1 : 0,

       `#0-1 Double-clicking in <b> element should set end of selection to start of next text node (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

       null,

       `#0-1 nsIHTMLEditor::getSelectedElement(\"\") should return null after double-clicking in <b> element (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    synthesizeMouseAtCenter(i, {clickCount: 1});

    synthesizeMouseAtCenter(i, {clickCount: 2});

    is(selection.getRangeAt(0).startContainer, i.previousSibling,

       `#0-2 Double-clicking in <i> element should set start of selection to end of previous text node (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    is(selection.getRangeAt(0).startOffset, i.previousSibling.length,

       `#0-2 Double-clicking in <i> element should set start of selection to end of previous text node (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    if (eatSpaceToNextWord) {

      is(selection.getRangeAt(0).endContainer, i.nextSibling,

         "#0-2 Double-clicking in <i> element should set end of selection to start of next text node (eat_space_to_next_word: true)");

      is(selection.getRangeAt(0).endOffset, 0,

         "#0-2 Double-clicking in <i> element should set end of selection to start of next text node (eat_space_to_next_word: true)");

    } else {

      is(selection.getRangeAt(0).endContainer, i.firstChild,

         "#0-2 Double-clicking in <i> element should set end of selection to end of the word in <i> (eat_space_to_next_word: false)");

      is(selection.getRangeAt(0).endOffset, "example".length,

         "#0-2 Double-clicking in <i> element should set end of selection to end of the word in <i> (eat_space_to_next_word: false)");

    is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

       null,

       `#0-2 nsIHTMLEditor::getSelectedElement(\"\") should return null after double-clicking in <b> element (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    // Both clicking and double-clicking on <img> element should "select" it.

    synthesizeMouseAtCenter(img, {clickCount: 1});

    is(selection.getRangeAt(0).startContainer, img.parentElement,

       `#0-3 Clicking in <img> element should set start of selection to the <img> element (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    is(selection.getRangeAt(0).startOffset, 1,

       `#0-3 Clicking in <img> element should set start of selection to the <img> element (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    is(selection.getRangeAt(0).endContainer, img.parentElement,

       `#0-3 Clicking in <img> element should set end of selection to start of next text node (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    is(selection.getRangeAt(0).endOffset, 2,

       `#0-3 Clicking in <img> element should set end of selection to start of next text node (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

       img,

       `#0-3 nsIHTMLEditor::getSelectedElement(\"\") should return the <img> element after clicking in it (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    synthesizeMouseAtCenter(img, {clickCount: 1});

    synthesizeMouseAtCenter(img, {clickCount: 2});

    is(selection.getRangeAt(0).startContainer, img.parentElement,

       `#0-4 Double-clicking in <img> element should set start of selection to the <img> element (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    is(selection.getRangeAt(0).startOffset, 1,

       `#0-4 Double-clicking in <img> element should set start of selection to the <img> element (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    is(selection.getRangeAt(0).endContainer, img.parentElement,

       `#0-4 Double-clicking in <img> element should set end of selection to start of next text node (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    is(selection.getRangeAt(0).endOffset, 2,

       `#0-4 Double-clicking in <img> element should set end of selection to start of next text node (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

       img,

       `#0-4 nsIHTMLEditor::getSelectedElement(\"\") should return the <img> element after double-clicking in it (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    // Puts caret into the <a href> element.

    synthesizeMouseAtCenter(href, {clickCount: 1});

    is(selection.getRangeAt(0).startContainer, href.firstChild,

       `#0-5 Clicking in <a href> element should set start of selection to the text node in it (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    is(selection.isCollapsed, true,

       `#0-5 Clicking in <a href> element should cause collapsing Selection (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

       null,

       `#0-5 nsIHTMLEditor::getSelectedElement(\"\") should return null after clicking in the <a href> element (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("href")),

       href,

       `#0-5 nsIHTMLEditor::getSelectedElement(\"href\") should return the <a href> element after clicking in it (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    // Selects the <a href> element with a triple-click.

    synthesizeMouseAtCenter(href, {clickCount: 1});

    synthesizeMouseAtCenter(href, {clickCount: 2});

    synthesizeMouseAtCenter(href, {clickCount: 3});

    is(selection.getRangeAt(0).startContainer, href.parentElement,

       `#0-6 Triple-clicking in <a href> element should set start of selection to the element (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    is(selection.getRangeAt(0).startOffset, 1,

       `#0-6 Triple-clicking in <a href> element should set start of selection to the element (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    is(selection.getRangeAt(0).endContainer, href.parentElement,

       `#0-6 Triple-clicking in <a href> element should set end of selection to start of next <br> element (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    is(selection.getRangeAt(0).endOffset, 2,

       `#0-6 Triple-clicking in <a href> element should set end of selection to start of next <br> element (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

       href,

       `#0-6 nsIHTMLEditor::getSelectedElement(\"\") should return the <a href> element after double-clicking in it (eat_space_to_next_word: ${eatSpaceToNextWord})`);

    is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("href")),

       href,

       `#0-6 nsIHTMLEditor::getSelectedElement(\"href\") should return the <a href> element after double-clicking in it (eat_space_to_next_word: ${eatSpaceToNextWord})`);

  editor.focus();

  // <p>[]p1...

  let range = document.createRange();

  range.setStart(editor.firstChild.firstChild, 0);

  range.setEnd(editor.firstChild.firstChild, 0);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#1-1 nsIHTMLEditor::getSelectedElement(\"\") should return null when selection is collapsed in a text node");

  // <p>[p1]<b>...

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild, 0);

  range.setEnd(editor.firstChild.firstChild, 2);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#1-2 nsIHTMLEditor::getSelectedElement(\"\") should return null when selection ends in a text node");

  // <p>[p1<b>]b1</b>...

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild, 0);

  range.setEnd(editor.firstChild.firstChild.nextSibling.firstChild, 0);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#1-3 nsIHTMLEditor::getSelectedElement(\"\") should return null when Selection ends at start of text node in <b> element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("b")),

     null,

     "#1-3 nsIHTMLEditor::getSelectedElement(\"b\") should return null when Selection ends at start of text node in <b> element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("i")),

     editor.firstChild.nextSibling,

     "#1-3 nsIHTMLEditor::getSelectedElement(\"i\") should return the <b> element when Selection ends at start of text node in <b> element");

  // <p>[p1<b>b1]</b>...

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild, 0);

  range.setEnd(editor.firstChild.firstChild.nextSibling.firstChild, 2);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#1-4 nsIHTMLEditor::getSelectedElement(\"\") should return null when Selection ends at end of text node in a text node");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("b")),

     null,

     "#1-4 nsIHTMLEditor::getSelectedElement(\"b\") should return null when Selection ends at end of text node in a text node");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("i")),

     editor.firstChild.nextSibling,

     "#1-4 nsIHTMLEditor::getSelectedElement(\"i\") should return the <b> element when Selection ends at end of text node in <b> element");

  // <p>[p1}<b>b1...

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild, 0);

  range.setEnd(editor.firstChild.firstChild.nextSibling, 0);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#1-5 nsIHTMLEditor::getSelectedElement(\"\") should return null when Selection ends at text node and there are no elements");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("b")),

     null,

     "#1-5 nsIHTMLEditor::getSelectedElement(\"b\") should return null when Selection ends at text node and there are no elements");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("i")),

     null,

     "#1-5 nsIHTMLEditor::getSelectedElement(\"i\") should return null when Selection ends at text node and there are no elements");

  // <p>p1<b>{b1}</b>...

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild.nextSibling, 0);

  range.setEnd(editor.firstChild.firstChild.nextSibling, 1);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#1-6 nsIHTMLEditor::getSelectedElement(\"\") should return null when Selection only selects a text node");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("b")),

     null,

     "#1-6 nsIHTMLEditor::getSelectedElement(\"b\") should return null when Selection only selects a text node");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("i")),

     null,

     "#1-6 nsIHTMLEditor::getSelectedElement(\"i\") should return null when Selection only selects a text node");

  // <p>[p1<b>b1</b>}<i>...

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild, 0);

  range.setEnd(editor.firstChild, 2);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#1-7 nsIHTMLEditor::getSelectedElement(\"\") should return null when Selection ends the <b> element but starts from the previous text node");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("b")),

     null,

     "#1-7 nsIHTMLEditor::getSelectedElement(\"b\") should return null when Selection ends the <b> element but starts from the previous text node");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("i")),

     null,

     "#1-7 nsIHTMLEditor::getSelectedElement(\"i\") should return null when Selection ends the <b> element but starts from the previous text node");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("href")),

     null,

     "#1-7 nsIHTMLEditor::getSelectedElement(\"href\") should return null when Selection ends the <b> element but starts from the previous text node");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("anchor")),

     null,

     "#1-7 nsIHTMLEditor::getSelectedElement(\"anchor\") should return null when Selection ends the <b> element but starts from the previous text node");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("namedanchor")),

     null,

     "#1-7 nsIHTMLEditor::getSelectedElement(\"namedanchor\") should return null when Selection ends the <b> element but starts from the previous text node");

  // <p>[p1<b>b1</b><i>i1</i>}...

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild, 0);

  range.setEnd(editor.firstChild, 3);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#1-8 nsIHTMLEditor::getSelectedElement(\"\") should return null when Selection includes 2 elements and starts from previous text node");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("b")),

     null,

     "#1-8 nsIHTMLEditor::getSelectedElement(\"b\") should return null when Selection includes 2 elements and starts from previous text node");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("i")),

     null,

     "#1-8 nsIHTMLEditor::getSelectedElement(\"i\") should return null when Selection includes 2 elements and starts from previous text node");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("href")),

     null,

     "#1-8 nsIHTMLEditor::getSelectedElement(\"href\") should null when Selection includes 2 elements and starts from previous text node");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("anchor")),

     null,

     "#1-8 nsIHTMLEditor::getSelectedElement(\"anchor\") should return null when Selection includes 2 elements and starts from previous text node");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("namedanchor")),

     null,

     "#1-8 nsIHTMLEditor::getSelectedElement(\"namedanchor\") should return null when Selection includes 2 elements and starts from previous text node");

  // <p>p1{<b>b1</b>}<i>i1</i>...

  // Note that this won't happen with user operation since Gecko sets

  // start and end of Selection to points in text nodes as far as possible.

  range = document.createRange();

  range.setStart(editor.firstChild, 1);

  range.setEnd(editor.firstChild, 2);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     editor.firstChild.firstChild.nextSibling,

     "#1-9 nsIHTMLEditor::getSelectedElement(\"\") should return <b> element when only it is selected and matched");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("b")),

     editor.firstChild.firstChild.nextSibling,

     "#1-9 nsIHTMLEditor::getSelectedElement(\"b\") should return <b> element when only it is selected and matched");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("i")),

     null,

     "#1-9 nsIHTMLEditor::getSelectedElement(\"i\") should return null when only a <b> element is selected but it is unmatched");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("href")),

     null,

     "#1-9 nsIHTMLEditor::getSelectedElement(\"href\") should return null when only a <b> element is selected but it is unmatched");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("anchor")),

     null,

     "#1-9 nsIHTMLEditor::getSelectedElement(\"anchor\") should return null when only a <b> element is selected but it is unmatched");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("namedanchor")),

     null,

     "#1-9 nsIHTMLEditor::getSelectedElement(\"namedanchor\") should return when only a <b> element is selected but it is unmatched");

  // <p>p1<b>b1</b>{<i>i1</i>}</p>...

  range = document.createRange();

  range.setStart(editor.firstChild, 2);

  range.setEnd(editor.firstChild, 3);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     editor.firstChild.firstChild.nextSibling.nextSibling,

     "#1-10 nsIHTMLEditor::getSelectedElement(\"\") should return <i> element when only it is selected and matched");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("b")),

     null,

     "#1-10 nsIHTMLEditor::getSelectedElement(\"b\") should return null when only an <i> element is selected but it is unmatched");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("i")),

     editor.firstChild.firstChild.nextSibling.nextSibling,

     "#1-10 nsIHTMLEditor::getSelectedElement(\"i\") should return <i> element when only it is selected and matched");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("href")),

     null,

     "#1-10 nsIHTMLEditor::getSelectedElement(\"href\") should return null when only an <i> element is selected but it is unmatched");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("anchor")),

     null,

     "#1-10 nsIHTMLEditor::getSelectedElement(\"anchor\") should return null when only an <i> element is selected but it is unmatched");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("namedanchor")),

     null,

     "#1-10 nsIHTMLEditor::getSelectedElement(\"namedanchor\") should return null when only an <i> element is selected but it is unmatched");

  // <p>{p1}<b>b1</b><i>...

  range = document.createRange();

  range.setStart(editor.firstChild, 0);

  range.setEnd(editor.firstChild, 1);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#1-11 nsIHTMLEditor::getSelectedElement(\"\") should return null when only a text node is selected");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("b")),

     null,

     "#1-11 nsIHTMLEditor::getSelectedElement(\"b\") should return null when only a text node is selected");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("i")),

     null,

     "#1-11 nsIHTMLEditor::getSelectedElement(\"i\") should return null when only a text node is selected");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("href")),

     null,

     "#1-11 nsIHTMLEditor::getSelectedElement(\"href\") should return null when only a text node is selected");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("anchor")),

     null,

     "#1-11 nsIHTMLEditor::getSelectedElement(\"anchor\") should return null when only a text node is selected");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("namedanchor")),

     null,

     "#1-11 nsIHTMLEditor::getSelectedElement(\"namedanchor\") should return null when only a text node is selected");

  editor.focus();

  // <p>p1<b>b[1</b><b>b2</b><b>b]3</b>...

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild.nextSibling.firstChild, 1);

  range.setEnd(editor.firstChild.firstChild.nextSibling.nextSibling.nextSibling.firstChild, 1);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#2-1 nsIHTMLEditor::getSelectedElement(\"\") should return null when Selection is across 3 <b> elements");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("b")),

     null,

     "#2-1 nsIHTMLEditor::getSelectedElement(\"b\") should return null when Selection is across 3 <b> elements");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("i")),

     null,

     "#2-1 nsIHTMLEditor::getSelectedElement(\"i\") should return null when Selection is across 3 <b> elements");

  // <p>p[1<b>b1</b><b>b2</b><b>b]3</b>...

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild, 1);

  range.setEnd(editor.firstChild.firstChild.nextSibling.nextSibling.nextSibling.firstChild, 1);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#2-2 nsIHTMLEditor::getSelectedElement(\"\") should return null when Selection is across 3 <b> elements and previous text node");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("b")),

     null,

     "#2-2 nsIHTMLEditor::getSelectedElement(\"b\") should return null when Selection is across 3 <b> elements and previous text node");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("i")),

     null,

     "#2-2 nsIHTMLEditor::getSelectedElement(\"i\") should return null when Selection is across 3 <b> elements and previous text node");

  editor.focus();

  // <p>p1<b>b[1<b>b1-2<b>b]1-3</b>...

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild.nextSibling.firstChild, 1);

  range.setEnd(editor.firstChild.firstChild.nextSibling.firstChild.nextSibling.firstChild.nextSibling.firstChild, 1);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#3-1 nsIHTMLEditor::getSelectedElement(\"\") should return null when Selection is across 3 <b> elements which are nested");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("b")),

     null,

     "#3-1 nsIHTMLEditor::getSelectedElement(\"b\") should return null when Selection is across 3 <b> elements which are nested");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("i")),

     null,

     "#3-1 nsIHTMLEditor::getSelectedElement(\"i\") should return null when Selection is across 3 <b> elements which are nested");

  // <p>p[1<b>b1<b>b1-2<b>b]1-3</b>...

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild, 1);

  range.setEnd(editor.firstChild.firstChild.nextSibling.firstChild.nextSibling.firstChild.nextSibling.firstChild, 1);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#3-2 nsIHTMLEditor::getSelectedElement(\"\") should return null when Selection is across a text node and 3 <b> elements which are nested");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("b")),

     null,

     "#3-2 nsIHTMLEditor::getSelectedElement(\"b\") should return null when Selection is across a text node and 3 <b> elements which are nested");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("i")),

     null,

     "#3-2 nsIHTMLEditor::getSelectedElement(\"i\") should return null when Selection is across a text node and 3 <b> elements which are nested");

  // <p>p1<b>b1<b>b1-2<b>b[1-3</b></b></b>p]2...

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild.nextSibling.firstChild.nextSibling.firstChild.nextSibling.firstChild, 1);

  range.setEnd(editor.firstChild.firstChild.nextSibling.nextSibling, 1);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#3-3 nsIHTMLEditor::getSelectedElement(\"\") should return null when Selection is across 3 <b> elements which are nested and following text node");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("b")),

     null,

     "#3-3 nsIHTMLEditor::getSelectedElement(\"b\") should return null when Selection is across 3 <b> elements which are nested and following text node");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("i")),

     null,

     "#3-3 nsIHTMLEditor::getSelectedElement(\"i\") should return null when Selection is across 3 <b> elements which are nested and following text node");

  editor.focus();

  // <p><b>b1</b>{<a href="...">a1</a>}<a href="...">a2...

  // Note that this won't happen with user operation since Gecko sets

  // start and end of Selection to points in text nodes as far as possible.

  range = document.createRange();

  range.setStart(editor.firstChild, 1);

  range.setEnd(editor.firstChild, 2);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     editor.firstChild.firstChild.nextSibling,

     "#4-1 nsIHTMLEditor::getSelectedElement(\"\") should return the first <a> element when only it is selected and matched");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("href")),

     editor.firstChild.firstChild.nextSibling,

     "#4-1 nsIHTMLEditor::getSelectedElement(\"href\") should return the first <a> element when only it is selected and matched");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("anchor")),

     null,

     "#4-1 nsIHTMLEditor::getSelectedElement(\"anchor\") should return null when the first <a> element is selected but it is unmatched");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("namedanchor")),

     null,

     "#4-1 nsIHTMLEditor::getSelectedElement(\"namedanchor\") should return null when the first <a> element is selected but it is unmatched");

  // <p><b>b1</b><a href="...">a[]1</a><a href="...">a2...

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild.nextSibling.firstChild, 1);

  range.setEnd(editor.firstChild.firstChild.nextSibling.firstChild, 1);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#4-2 nsIHTMLEditor::getSelectedElement(\"\") should return null when Selection is collapsed");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("href")),

     editor.firstChild.firstChild.nextSibling,

     "#4-2 nsIHTMLEditor::getSelectedElement(\"href\") should return the first <a> element when Selection is collapsed in the element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("anchor")),

     null,

     "#4-2 nsIHTMLEditor::getSelectedElement(\"anchor\") should return null when Selection is collapsed");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("namedanchor")),

     null,

     "#4-2 nsIHTMLEditor::getSelectedElement(\"namedanchor\") should return null when Selection is collapsed");

  // <p><b>b1</b><a href="...">a[1]</a><a href="...">a2...

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild.nextSibling.firstChild, 1);

  range.setEnd(editor.firstChild.firstChild.nextSibling.firstChild, 2);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#4-3 nsIHTMLEditor::getSelectedElement(\"\") should return null when Selection is in a text node");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("href")),

     editor.firstChild.firstChild.nextSibling,

     "#4-3 nsIHTMLEditor::getSelectedElement(\"href\") should return the first <a> element when Selection is in the element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("anchor")),

     null,

     "#4-3 nsIHTMLEditor::getSelectedElement(\"anchor\") should return null when Selection is in a text node");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("namedanchor")),

     null,

     "#4-3 nsIHTMLEditor::getSelectedElement(\"namedanchor\") should return null when Selection is in a text node");

  // <p><b>b1</b><a href="...">a[1</a><a href="...">a]2...

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild.nextSibling.firstChild, 1);

  range.setEnd(editor.firstChild.firstChild.nextSibling.nextSibling.firstChild, 1);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#4-4 nsIHTMLEditor::getSelectedElement(\"\") should return null when Selection crosses 2 <a> elements");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("href")),

     null,

     "#4-4 nsIHTMLEditor::getSelectedElement(\"href\") should return null when Selection crosses 2 <a> elements");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("anchor")),

     null,

     "#4-4 nsIHTMLEditor::getSelectedElement(\"anchor\") should return null when Selection crosses 2 <a> elements");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("namedanchor")),

     null,

     "#4-4 nsIHTMLEditor::getSelectedElement(\"namedanchor\") should return null when Selection crosses 2 <a> elements");

  // <p><b>b1</b><a href="...">a1</a><a href="...">a2</a>{<a name="...">a3</a>}<b>b2</b></p>

  // Note that this won't happen with user operation since Gecko sets

  // start and end of Selection to points in text nodes as far as possible.

  range = document.createRange();

  range.setStart(editor.firstChild, 3);

  range.setEnd(editor.firstChild, 4);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     editor.firstChild.firstChild.nextSibling.nextSibling.nextSibling,

     "#4-5 nsIHTMLEditor::getSelectedElement(\"\") should return the third <a> element when only it is selected and matched");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("href")),

     null,

     "#4-5 nsIHTMLEditor::getSelectedElement(\"href\") should return null when the third <a> element is selected but it is unmatched");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("anchor")),

     editor.firstChild.firstChild.nextSibling.nextSibling.nextSibling,

     "#4-5 nsIHTMLEditor::getSelectedElement(\"anchor\") should return the third <a> element when only it is selected and matched");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("namedanchor")),

     null,

     "#4-5 nsIHTMLEditor::getSelectedElement(\"namedanchor\") should return null when the third <a> element is selected but it is unmatched");

  // <p><b>b1</b><a href="...">a1</a><a href="...">a2</a><a name="...">a[]3</a><b>b2</b></p>

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild.nextSibling.nextSibling.nextSibling.firstChild, 1);

  range.setEnd(editor.firstChild.firstChild.nextSibling.nextSibling.nextSibling.firstChild, 1);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#4-6 nsIHTMLEditor::getSelectedElement(\"\") should return null when Selection is collapsed in a text node even in named anchor element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("href")),

     null,

     "#4-6 nsIHTMLEditor::getSelectedElement(\"href\") should return null when Selection is collapsed in a text node even in named anchor element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("anchor")),

     null,

     "#4-6 nsIHTMLEditor::getSelectedElement(\"anchor\") should return null when Selection is collapsed in a text node even in named anchor element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("namedanchor")),

     null,

     "#4-6 nsIHTMLEditor::getSelectedElement(\"namedanchor\") should return null when Selection is collapsed in a text node even in named anchor element");

  editor.focus();

  // <p>p1[<b>b1</b>]p1</p>

  // This is usual case that user selects <b> element with dragging or double-clicking.

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild, 2);

  range.setEnd(editor.firstChild.firstChild.nextSibling.nextSibling, 0);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#5-1 nsIHTMLEditor::getSelectedElement(\"\") should return null even when Selection starts from end of preceding text node and ends at start or following text node of <b> element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("href")),

     null,

     "#5-1 nsIHTMLEditor::getSelectedElement(\"href\") should return null even when Selection starts from end of preceding text node and ends at start or following text node of <b> element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("anchor")),

     null,

     "#5-1 nsIHTMLEditor::getSelectedElement(\"anchor\") should return null even when Selection starts from end of preceding text node and ends at start or following text node of <b> element");

  // <p>p[1<b>b1</b>]p1</p>

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild, 1);

  range.setEnd(editor.firstChild.firstChild.nextSibling.nextSibling, 0);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#5-2 nsIHTMLEditor::getSelectedElement(\"\") should return null when Selection ends at start of following text node of <b> element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("href")),

     null,

     "#5-2 nsIHTMLEditor::getSelectedElement(\"href\") should return null when Selection ends at start of following text node of <b> element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("anchor")),

     null,

     "#5-2 nsIHTMLEditor::getSelectedElement(\"anchor\") should return null when Selection ends at start of following text node of <b> element");

  // <p>p1[<b>b1</b>p]1</p>

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild, 2);

  range.setEnd(editor.firstChild.firstChild.nextSibling.nextSibling, 1);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#5-3 nsIHTMLEditor::getSelectedElement(\"\") should return null when Selection starts from end of following text node of <b> element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("href")),

     null,

     "#5-3 nsIHTMLEditor::getSelectedElement(\"href\") should return null when Selection starts from at end of following text node of <b> element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("anchor")),

     null,

     "#5-3 nsIHTMLEditor::getSelectedElement(\"anchor\") should return null when Selection starts from end of following text node of <b> element");

  // <p>p1<b>[b1</b>]p1</p>

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild.nextSibling.firstChild, 0);

  range.setEnd(editor.firstChild.firstChild.nextSibling.nextSibling, 0);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#5-4 nsIHTMLEditor::getSelectedElement(\"\") should return null when Selection starts from start of text node in <b> element and ends at start of following text node of <b> element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("href")),

     null,

     "#5-4 nsIHTMLEditor::getSelectedElement(\"href\") should return null when Selection starts from start of text node in <b> element and ends at start of following text node of <b> element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("anchor")),

     null,

     "#5-4 nsIHTMLEditor::getSelectedElement(\"anchor\") should return null when Selection starts from start of text node in <b> element and ends at start of following text node of <b> element");

  // <p>p1[<b>b1]</b>p1</p>

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild, 2);

  range.setEnd(editor.firstChild.firstChild.nextSibling.firstChild, 2);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#5-5 nsIHTMLEditor::getSelectedElement(\"\") should return null when Selection starts from end of preceding text node of <b> element and ends at end of text node in <b> element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("href")),

     null,

     "#5-5 nsIHTMLEditor::getSelectedElement(\"href\") should return null when Selection starts from end of preceding text node of <b> element and ends at end of text node in <b> element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("anchor")),

     null,

     "#5-5 nsIHTMLEditor::getSelectedElement(\"anchor\") should return null when Selection starts from end of preceding text node of <b> element and ends at end of text node in <b> element");

  // <p>p1<b>b[1</b>}p1</p>

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild.nextSibling.firstChild, 1);

  range.setEnd(editor.firstChild, 2);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     editor.firstChild.firstChild.nextSibling,

     "#5-6 nsIHTMLEditor::getSelectedElement(\"\") should the <b> element when Selection starts from in the <b> element's text node and end of preceding text node of <b> element and ends at end of the <b> element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("href")),

     null,

     "#5-6 nsIHTMLEditor::getSelectedElement(\"href\") should return null when Selection starts from in the <b> element's text node and end of preceding text node of <b> element and ends at end of the <b> element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("anchor")),

     null,

     "#5-6 nsIHTMLEditor::getSelectedElement(\"anchor\") should return null when Selection starts from in the <b> element's text node and end of preceding text node of <b> element and ends at end of the <b> element");

  editor.focus();

  // <p>p1[<b>b1</b>}</p>

  // This is usual case of double-clicking in the <b> element.

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild, 2);

  range.setEnd(editor.firstChild, 2);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#6-1 nsIHTMLEditor::getSelectedElement(\"\") should return null when Selection starts from previous text node of <b> element and end at end of <b> element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("href")),

     null,

     "#6-1 nsIHTMLEditor::getSelectedElement(\"href\") should return null when Selection starts from previous text node of <b> element and end at end of <b> element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("anchor")),

     null,

     "#6-1 nsIHTMLEditor::getSelectedElement(\"anchor\") should return null when Selection starts from previous text node of <b> element and end at end of <b> element");

  editor.focus();

  // <p><b>[b1</b>]p1</p>

  // This is usual case of double-clicking in the <b> element.

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild.firstChild, 0);

  range.setEnd(editor.firstChild.firstChild.nextSibling, 0);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#7-1 nsIHTMLEditor::getSelectedElement(\"\") should return null when Selection starts from a text node in <b> element and ends at start of following text node");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("href")),

     null,

     "#7-1 nsIHTMLEditor::getSelectedElement(\"href\") should return null when Selection starts from a text node in <b> element and ends at start of following text node");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("anchor")),

     null,

     "#7-1 nsIHTMLEditor::getSelectedElement(\"anchor\") should return null when Selection starts from a text node in <b> element and ends at start of following text node");

  editor.focus();

  // <p>p1[<b>b1</b>}<br></p>

  // This is usual case of double-clicking in the <b> element.

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild, 2);

  range.setEnd(editor.firstChild, 2);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#8-1 nsIHTMLEditor::getSelectedElement(\"\") should return null when Selection starts from previous text node of <b> element and ends before the following <br> element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("href")),

     null,

     "#8-1 nsIHTMLEditor::getSelectedElement(\"href\") should return null when Selection starts from previous text node of <b> element and ends before the following <br> element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("anchor")),

     null,

     "#8-1 nsIHTMLEditor::getSelectedElement(\"anchor\") should return null when Selection starts from previous text node of <b> element and ends before the following <br> element");

  editor.focus();

  // <p><b>[b1</b>}<br></p>

  // This is usual case of double-clicking in the <b> element.

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild.firstChild, 0);

  range.setEnd(editor.firstChild, 1);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#9-1 nsIHTMLEditor::getSelectedElement(\"\") should return null when Selection starts from a text node in <b> element and ends before the following <br> element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("href")),

     null,

     "#9-1 nsIHTMLEditor::getSelectedElement(\"href\") should return null when Selection starts from a text node in <b> element and ends before the following <br> element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("anchor")),

     null,

     "#9-1 nsIHTMLEditor::getSelectedElement(\"anchor\") should return null when Selection starts from a text node in <b> element and ends before the following <br> element");

  editor.focus();

  // <p><b>[b1</b><b>}<br></b><b>b2</b></p>

  // This is usual case of double-clicking in the first <b> element.

  range = document.createRange();

  range.setStart(editor.firstChild.firstChild.firstChild, 0);

  range.setEnd(editor.firstChild.firstChild.nextSibling, 0);

  selection.removeAllRanges();

  selection.addRange(range);

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("")),

     null,

     "#10-1 nsIHTMLEditor::getSelectedElement(\"\") should return null when Selection starts from a text node in <b> element and ends before the following <br> element in another <b> element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("href")),

     null,

     "#10-1 nsIHTMLEditor::getSelectedElement(\"href\") should return null when Selection starts from a text node in <b> element and ends before the following <br> element in another <b> element");

  is(SpecialPowers.unwrap(getHTMLEditor().getSelectedElement("anchor")),

     null,

     "#10-1 nsIHTMLEditor::getSelectedElement(\"anchor\") should return null when Selection starts from a text node in <b> element and ends before the following <br> element in another <b> element");

  SimpleTest.finish();

});

</script>

</body>

</html>

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