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<!doctype html>
<meta charset=utf-8>
<title>focus move tests caused by a call of Selection.collapse()</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<body>
<div style="height: 3000px;">Spacer to check whether or not page was scrolled down to focused editor</div>
<p id="staticBefore">static text</p>
<div id="editor" contenteditable><p>content of editor</p></div>
<div id="outerEditor" contenteditable
><p>content of outer editor</p><div id="staticInEditor" contenteditable="false"
><p>static content of outer editor</p><div id="innerEditor" contenteditable
><p>content of inner editor</p></div></div></div>
<p id="staticAfter">static text</p>
<p><a id="anchor" href="about:blank">anchor</a></p>
<script>
"use strict";

var staticBefore = {
    element: document.getElementById("staticBefore"),
    textNode: document.getElementById("staticBefore").firstChild,
    textLength: document.getElementById("staticBefore").firstChild.length
};
var editor = {
    element: document.getElementById("editor"),
    textNode: document.getElementById("editor").firstChild.firstChild,
    textLength: document.getElementById("editor").firstChild.firstChild.length
};
var outerEditor = {
    element: document.getElementById("outerEditor"),
    textNode: document.getElementById("outerEditor").firstChild.firstChild,
    textLength: document.getElementById("outerEditor").firstChild.firstChild.length
};
var staticInEditor = {
    element: document.getElementById("staticInEditor"),
    textNode: document.getElementById("staticInEditor").firstChild,
    textLength: document.getElementById("staticInEditor").firstChild.length
};
var innerEditor = {
    element: document.getElementById("innerEditor"),
    textNode: document.getElementById("innerEditor").firstChild.firstChild,
    textLength: document.getElementById("innerEditor").firstChild.firstChild.length
};
var staticAfter = {
    element: document.getElementById("staticAfter"),
    textNode: document.getElementById("staticAfter").firstChild,
    textLength: document.getElementById("staticAfter").firstChild.length
};
var anchor = {
    element: document.getElementById("anchor"),
    textNode: document.getElementById("anchor").firstChild,
    textLength: document.getElementById("anchor").firstChild.length
};

function resetFocusAndSelectionRange(aFocus)
{
    document.getSelection().removeAllRanges();
    if (document.activeElement) {
        document.activeElement.blur();
    }
    if (aFocus) {
        aFocus.element.focus();
        document.getSelection().collapse(aFocus.textNode, 0);
    } else {
        document.getSelection().collapse(staticBefore.textNode, 0);
    }
    document.documentElement.scrollTop = 0;
}

test(function() {
    resetFocusAndSelectionRange();
    document.getSelection().collapse(staticBefore.textNode, 0);
    assert_equals(document.activeElement, document.body);
    assert_equals(document.documentElement.scrollTop, 0);
}, "Active element should be the <body> after Selection.collapse() not moving selection from first text node in the <body>");
test(function() {
    resetFocusAndSelectionRange();
    document.getSelection().collapse(editor.textNode, 0);
    assert_equals(document.activeElement, editor.element);
    assert_equals(document.documentElement.scrollTop, 0);
}, "Active element should be 'editor' after Selection.collapse() moving selection from first text node in the <body> to start of the first text node of 'editor'");
test(function() {
    resetFocusAndSelectionRange();
    document.getSelection().collapse(outerEditor.textNode, 0);
    assert_equals(document.activeElement, outerEditor.element);
    assert_equals(document.documentElement.scrollTop, 0);
}, "Active element should be 'outerEditor' after Selection.collapse() moving selection from first text node in the <body> to start of the first text node of 'outerEditor'");
test(function() {
    resetFocusAndSelectionRange();
    document.getSelection().collapse(staticInEditor.textNode, 0);
    assert_equals(document.activeElement, document.body);
    assert_equals(document.documentElement.scrollTop, 0);
}, "Active element should be the <body> after Selection.collapse() moving selection from first text node in the <body> to start of the first text node of 'staticInEditor'");
test(function() {
    resetFocusAndSelectionRange();
    document.getSelection().collapse(innerEditor.textNode, 0);
    assert_equals(document.activeElement, innerEditor.element);
    assert_equals(document.documentElement.scrollTop, 0);
}, "Active element should be 'innerEditor' after Selection.collapse() moving selection from first text node in the <body> to start of the first text node of 'innerEditor'");
test(function() {
    resetFocusAndSelectionRange();
    document.getSelection().collapse(anchor.textNode, 0);
    assert_equals(document.activeElement, document.body);
    assert_equals(document.documentElement.scrollTop, 0);
}, "Active element should be the <body> after Selection.collapse() moving selection from first text node in the <body> to start of the first text node of 'anchor'");
test(function() {
    resetFocusAndSelectionRange(outerEditor);
    document.getSelection().collapse(innerEditor.textNode, 0);
    assert_equals(document.activeElement, innerEditor.element);
    assert_equals(document.documentElement.scrollTop, 0);
}, "Active element should be 'innerEditor' after Selection.collapse() moving selection from first text node in 'outerEditor' to start of the first text node of 'innerEditor'");
test(function() {
    resetFocusAndSelectionRange(outerEditor);
    document.getSelection().collapse(staticInEditor.textNode, 0);
    assert_equals(document.activeElement, outerEditor.element);
    assert_equals(document.documentElement.scrollTop, 0);
}, "Active element should be 'outerEditor' after Selection.collapse() moving selection from first text node in 'outerEditor' to start of the first text node of 'staticInEditor'");
test(function() {
    resetFocusAndSelectionRange(innerEditor);
    document.getSelection().collapse(staticBefore.textNode, 0);
    assert_equals(document.activeElement, innerEditor.element);
    assert_equals(document.documentElement.scrollTop, 0);
}, "Active element should be 'innerEditor' after Selection.collapse() moving selection from first text node in 'innerEditor' to start of the first text node of the <body>");
test(function() {
    resetFocusAndSelectionRange(innerEditor);
    document.getSelection().collapse(editor.textNode, 0);
    assert_equals(document.activeElement, editor.element);
    assert_equals(document.documentElement.scrollTop, 0);
}, "Active element should be 'editor' after Selection.collapse() moving selection from first text node in 'innerEditor' to start of the first text node of 'editor'");
test(function() {
    resetFocusAndSelectionRange(innerEditor);
    document.getSelection().collapse(outerEditor.textNode, 0);
    assert_equals(document.activeElement, outerEditor.element);
    assert_equals(document.documentElement.scrollTop, 0);
}, "Active element should be 'outerEditor' after Selection.collapse() moving selection from first text node in 'innerEditor' to start of the first text node of 'outerEditor'");
test(function() {
    resetFocusAndSelectionRange(innerEditor);
    document.getSelection().collapse(staticInEditor.textNode, 0);
    assert_equals(document.activeElement, innerEditor.element);
    assert_equals(document.documentElement.scrollTop, 0);
}, "Active element should be 'innerEditor' after Selection.collapse() moving selection from first text node in 'innerEditor' to start of the first text node of 'staticInEditor'");
test(function() {
    resetFocusAndSelectionRange(innerEditor);
    document.getSelection().collapse(anchor.textNode, 0);
    assert_equals(document.activeElement, innerEditor.element);
    assert_equals(document.documentElement.scrollTop, 0);
}, "Active element should be 'innerEditor' after Selection.collapse() moving selection from first text node in 'innerEditor' to start of the first text node of 'anchor'");
</script>