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LibWeb/HTML: Ignore form owner if earlier same-ID element isn't a form
Only set form owner when there is no non-form element with the same ID as the control's form attribute earlier in tree order.
This commit is contained in:
Glenn Skrzypczak
Jelle Raaijmakers
parent
405e270583
commit
a0dbae02c8
Notes:
github-actions[bot]
2025-11-24 08:53:14 +00:00
Author: https://github.com/skyz1
Commit: a0dbae02c8
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/6914
Reviewed-by: https://github.com/gmta ✅
3 changed files with 341 additions and 3 deletions
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@ -187,9 +187,10 @@ void FormAssociatedElement::reset_form_owner()
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if (is_listed() && html_element.has_attribute(HTML::AttributeNames::form) && html_element.is_connected()) {
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// 1. If the first element in element's tree, in tree order, to have an ID that is identical to element's form content attribute's value, is a form element, then associate the element with that form element.
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auto form_value = html_element.attribute(HTML::AttributeNames::form);
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html_element.root().for_each_in_inclusive_subtree_of_type<HTMLFormElement>([this, &form_value](HTMLFormElement& form_element) {
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if (form_element.id() == form_value) {
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set_form(&form_element);
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html_element.root().for_each_in_inclusive_subtree_of_type<HTMLElement>([this, &form_value](auto& element) {
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if (element.id() == form_value) {
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if (is<HTMLFormElement>(element))
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set_form(as<HTMLFormElement>(&element));
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return TraversalDecision::Break;
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}
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@ -0,0 +1,104 @@
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Harness status: OK
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Found 99 tests
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99 Pass
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Pass Tests for parser inserted controls
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Pass [BUTTON] Basic form association - control with no form attribute is associated with ancestor
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Pass [BUTTON] Form owner is reset to null when control's form attribute is set to an ID that does not exist in the document
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Pass [BUTTON] Control whose form attribute is an empty string has no form owner
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Pass [BUTTON] Control whose form attribute is an empty string has no form owner even when form with empty attribute is present
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Pass [BUTTON] Control's form attribute must be a case sensitive match for the form's id
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Pass [BUTTON] Setting the form attribute of a control to the id of a non-ancestor form works
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Pass [BUTTON] Removing form id from a control resets the form owner to ancestor
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Pass [BUTTON] Removing the form owner of a control with form attribute resets the form owner to null
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Pass [BUTTON] Changing form attibute of control resets form owner to correct form
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Pass [BUTTON] Moving a control with form attribute within the document does not change the form owner
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Pass [BUTTON] When the id of a non-ancestor form changes from not being a match for the form attribute to being a match, the control's form owner is reset
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Pass [BUTTON] When form element with same ID as the control's form attribute is inserted earlier in tree order, the form owner is changed to the inserted form
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Pass [BUTTON] When non-form element with same ID as the control's form attribute is inserted earlier in tree order, the control does not have a form owner
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Pass [BUTTON] A control that is not in the document but has the form attribute set is associated with the nearest ancestor form if one exists
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Pass [FIELDSET] Basic form association - control with no form attribute is associated with ancestor
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Pass [FIELDSET] Form owner is reset to null when control's form attribute is set to an ID that does not exist in the document
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Pass [FIELDSET] Control whose form attribute is an empty string has no form owner
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Pass [FIELDSET] Control whose form attribute is an empty string has no form owner even when form with empty attribute is present
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Pass [FIELDSET] Control's form attribute must be a case sensitive match for the form's id
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Pass [FIELDSET] Setting the form attribute of a control to the id of a non-ancestor form works
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Pass [FIELDSET] Removing form id from a control resets the form owner to ancestor
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Pass [FIELDSET] Removing the form owner of a control with form attribute resets the form owner to null
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Pass [FIELDSET] Changing form attibute of control resets form owner to correct form
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Pass [FIELDSET] Moving a control with form attribute within the document does not change the form owner
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Pass [FIELDSET] When the id of a non-ancestor form changes from not being a match for the form attribute to being a match, the control's form owner is reset
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Pass [FIELDSET] When form element with same ID as the control's form attribute is inserted earlier in tree order, the form owner is changed to the inserted form
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Pass [FIELDSET] When non-form element with same ID as the control's form attribute is inserted earlier in tree order, the control does not have a form owner
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Pass [FIELDSET] A control that is not in the document but has the form attribute set is associated with the nearest ancestor form if one exists
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Pass [INPUT] Basic form association - control with no form attribute is associated with ancestor
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Pass [INPUT] Form owner is reset to null when control's form attribute is set to an ID that does not exist in the document
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Pass [INPUT] Control whose form attribute is an empty string has no form owner
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Pass [INPUT] Control whose form attribute is an empty string has no form owner even when form with empty attribute is present
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Pass [INPUT] Control's form attribute must be a case sensitive match for the form's id
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Pass [INPUT] Setting the form attribute of a control to the id of a non-ancestor form works
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Pass [INPUT] Removing form id from a control resets the form owner to ancestor
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Pass [INPUT] Removing the form owner of a control with form attribute resets the form owner to null
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Pass [INPUT] Changing form attibute of control resets form owner to correct form
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Pass [INPUT] Moving a control with form attribute within the document does not change the form owner
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Pass [INPUT] When the id of a non-ancestor form changes from not being a match for the form attribute to being a match, the control's form owner is reset
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Pass [INPUT] When form element with same ID as the control's form attribute is inserted earlier in tree order, the form owner is changed to the inserted form
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Pass [INPUT] When non-form element with same ID as the control's form attribute is inserted earlier in tree order, the control does not have a form owner
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Pass [INPUT] A control that is not in the document but has the form attribute set is associated with the nearest ancestor form if one exists
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Pass [OBJECT] Basic form association - control with no form attribute is associated with ancestor
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Pass [OBJECT] Form owner is reset to null when control's form attribute is set to an ID that does not exist in the document
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Pass [OBJECT] Control whose form attribute is an empty string has no form owner
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Pass [OBJECT] Control whose form attribute is an empty string has no form owner even when form with empty attribute is present
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Pass [OBJECT] Control's form attribute must be a case sensitive match for the form's id
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Pass [OBJECT] Setting the form attribute of a control to the id of a non-ancestor form works
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Pass [OBJECT] Removing form id from a control resets the form owner to ancestor
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Pass [OBJECT] Removing the form owner of a control with form attribute resets the form owner to null
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Pass [OBJECT] Changing form attibute of control resets form owner to correct form
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Pass [OBJECT] Moving a control with form attribute within the document does not change the form owner
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Pass [OBJECT] When the id of a non-ancestor form changes from not being a match for the form attribute to being a match, the control's form owner is reset
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Pass [OBJECT] When form element with same ID as the control's form attribute is inserted earlier in tree order, the form owner is changed to the inserted form
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Pass [OBJECT] When non-form element with same ID as the control's form attribute is inserted earlier in tree order, the control does not have a form owner
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Pass [OBJECT] A control that is not in the document but has the form attribute set is associated with the nearest ancestor form if one exists
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Pass [OUTPUT] Basic form association - control with no form attribute is associated with ancestor
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Pass [OUTPUT] Form owner is reset to null when control's form attribute is set to an ID that does not exist in the document
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Pass [OUTPUT] Control whose form attribute is an empty string has no form owner
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Pass [OUTPUT] Control whose form attribute is an empty string has no form owner even when form with empty attribute is present
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Pass [OUTPUT] Control's form attribute must be a case sensitive match for the form's id
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Pass [OUTPUT] Setting the form attribute of a control to the id of a non-ancestor form works
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Pass [OUTPUT] Removing form id from a control resets the form owner to ancestor
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Pass [OUTPUT] Removing the form owner of a control with form attribute resets the form owner to null
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Pass [OUTPUT] Changing form attibute of control resets form owner to correct form
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Pass [OUTPUT] Moving a control with form attribute within the document does not change the form owner
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Pass [OUTPUT] When the id of a non-ancestor form changes from not being a match for the form attribute to being a match, the control's form owner is reset
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Pass [OUTPUT] When form element with same ID as the control's form attribute is inserted earlier in tree order, the form owner is changed to the inserted form
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Pass [OUTPUT] When non-form element with same ID as the control's form attribute is inserted earlier in tree order, the control does not have a form owner
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Pass [OUTPUT] A control that is not in the document but has the form attribute set is associated with the nearest ancestor form if one exists
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Pass [SELECT] Basic form association - control with no form attribute is associated with ancestor
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Pass [SELECT] Form owner is reset to null when control's form attribute is set to an ID that does not exist in the document
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Pass [SELECT] Control whose form attribute is an empty string has no form owner
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Pass [SELECT] Control whose form attribute is an empty string has no form owner even when form with empty attribute is present
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Pass [SELECT] Control's form attribute must be a case sensitive match for the form's id
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Pass [SELECT] Setting the form attribute of a control to the id of a non-ancestor form works
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Pass [SELECT] Removing form id from a control resets the form owner to ancestor
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Pass [SELECT] Removing the form owner of a control with form attribute resets the form owner to null
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Pass [SELECT] Changing form attibute of control resets form owner to correct form
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Pass [SELECT] Moving a control with form attribute within the document does not change the form owner
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Pass [SELECT] When the id of a non-ancestor form changes from not being a match for the form attribute to being a match, the control's form owner is reset
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Pass [SELECT] When form element with same ID as the control's form attribute is inserted earlier in tree order, the form owner is changed to the inserted form
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Pass [SELECT] When non-form element with same ID as the control's form attribute is inserted earlier in tree order, the control does not have a form owner
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Pass [SELECT] A control that is not in the document but has the form attribute set is associated with the nearest ancestor form if one exists
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Pass [TEXTAREA] Basic form association - control with no form attribute is associated with ancestor
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Pass [TEXTAREA] Form owner is reset to null when control's form attribute is set to an ID that does not exist in the document
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Pass [TEXTAREA] Control whose form attribute is an empty string has no form owner
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Pass [TEXTAREA] Control whose form attribute is an empty string has no form owner even when form with empty attribute is present
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Pass [TEXTAREA] Control's form attribute must be a case sensitive match for the form's id
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Pass [TEXTAREA] Setting the form attribute of a control to the id of a non-ancestor form works
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Pass [TEXTAREA] Removing form id from a control resets the form owner to ancestor
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Pass [TEXTAREA] Removing the form owner of a control with form attribute resets the form owner to null
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Pass [TEXTAREA] Changing form attibute of control resets form owner to correct form
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Pass [TEXTAREA] Moving a control with form attribute within the document does not change the form owner
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Pass [TEXTAREA] When the id of a non-ancestor form changes from not being a match for the form attribute to being a match, the control's form owner is reset
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Pass [TEXTAREA] When form element with same ID as the control's form attribute is inserted earlier in tree order, the form owner is changed to the inserted form
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Pass [TEXTAREA] When non-form element with same ID as the control's form attribute is inserted earlier in tree order, the control does not have a form owner
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Pass [TEXTAREA] A control that is not in the document but has the form attribute set is associated with the nearest ancestor form if one exists
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@ -0,0 +1,233 @@
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<!DOCTYPE html>
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<html>
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<head>
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<script src="../../../../resources/testharness.js"></script>
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<script src="../../../../resources/testharnessreport.js"></script>
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</head>
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<body>
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<div>
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<form id="f1"></form>
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<form id="f2">
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<input id="i1" />
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<input id="i2" form="f1" />
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<input id="i3" />
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</form>
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<script>
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test(function() {
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var i1 = document.getElementById("i1");
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var i2 = document.getElementById("i2");
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var i3 = document.getElementById("i3");
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var f1 = document.getElementById("f1");
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var f2 = document.getElementById("f2");
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assert_equals(i1.form, f2,
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"i1 must be associated with f2 by the parser");
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assert_equals(i2.form, f1,
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"i2 is not associated with f2 by the parser " +
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"since it has the form attribute set to f1");
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f1.appendChild(i1);
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i3.setAttribute("form", "f1");
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assert_equals(i1.form, f1,
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"i1's form owner must be reset when parent changes");
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assert_equals(i3.form, f1,
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"i3's form owner must be reset when the form" +
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"attribute is set");
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assert_equals(i2.form, f1);
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}, "Tests for parser inserted controls");
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</script>
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</div>
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<div id="placeholder">
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</div>
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<script>
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var reassociateableElements = [
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"button",
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"fieldset",
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"input",
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"object",
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"output",
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"select",
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"textarea",
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];
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var form1 = null;
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var form2 = null;
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var placeholder = document.getElementById("placeholder");
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reassociateableElements.forEach(function(localName) {
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function testControl(test_, desc) {
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test(function() {
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var control = document.createElement(localName);
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while(placeholder.firstChild)
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placeholder.removeChild(placeholder.firstChild);
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form1 = document.createElement("form");
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form2 = document.createElement("form");
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form1.id = "form1";
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form2.id = "form2";
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placeholder.appendChild(form1);
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placeholder.appendChild(form2);
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test_.call(control);
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}, "[" + localName.toUpperCase() + "] " + desc);
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}
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testControl(function() {
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form1.appendChild(this);
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assert_equals(this.form, form1);
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}, "Basic form association - control with no form attribute is associated with ancestor");
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testControl(function() {
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this.setAttribute("form", "form1");
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form1.appendChild(this);
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assert_equals(this.form, form1);
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form1.id = "form-one";
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assert_equals(this.form, null);
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}, "Form owner is reset to null when control's form attribute is set to an ID " +
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"that does not exist in the document");
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testControl(function() {
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this.setAttribute("form", "");
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form1.appendChild(this);
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assert_equals(this.form, null);
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}, "Control whose form attribute is an empty string has no form owner");
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testControl(function() {
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form1.id = "";
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this.setAttribute("form", "");
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form1.appendChild(this);
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assert_equals(this.form, null);
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}, "Control whose form attribute is an empty string has no form owner " +
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"even when form with empty attribute is present");
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testControl(function() {
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form1.id = "FORM1";
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this.setAttribute("form", "form1");
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form1.appendChild(this);
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assert_equals(this.form, null);
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}, "Control's form attribute must be a case sensitive match for the form's id");
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testControl(function() {
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form1.appendChild(this);
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assert_equals(this.form, form1);
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this.setAttribute("form", "form2");
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assert_equals(this.form, form2);
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}, "Setting the form attribute of a control to the id of a non-ancestor form works");
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testControl(function() {
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this.setAttribute("form", "form1");
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form2.appendChild(this);
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assert_equals(this.form, form1);
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this.removeAttribute("form");
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assert_equals(this.form, form2);
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}, "Removing form id from a control resets the form owner to ancestor");
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testControl(function() {
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this.setAttribute("form", "form1");
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form2.appendChild(this);
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assert_equals(this.form, form1);
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placeholder.removeChild(form1);
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assert_equals(this.form, null);
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}, "Removing the form owner of a control with form attribute resets " +
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"the form owner to null");
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testControl(function() {
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var form3 = document.createElement("form");
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form3.id = "form3";
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placeholder.appendChild(form3);
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form3.appendChild(this);
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assert_equals(this.form, form3);
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this.setAttribute("form", "form2");
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assert_equals(this.form, form2);
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this.setAttribute("form", "form1");
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assert_equals(this.form, form1);
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}, "Changing form attibute of control resets form owner to correct form");
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testControl(function() {
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this.setAttribute("form", "form1");
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var form3 = document.createElement("form");
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form3.id = "form3";
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placeholder.appendChild(form3);
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placeholder.appendChild(this);
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assert_equals(this.form, form1);
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form1.appendChild(this);
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assert_equals(this.form, form1);
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form2.appendChild(this);
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assert_equals(this.form, form1);
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}, "Moving a control with form attribute within the document " +
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"does not change the form owner");
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testControl(function() {
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form1.id = "form-one";
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this.setAttribute("form", "form1");
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form2.appendChild(this);
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assert_equals(this.form, null);
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form1.id = "form1";
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assert_equals(this.form, form1);
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}, "When the id of a non-ancestor form changes from not being a match for the " +
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"form attribute to being a match, the control's form owner is reset");
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testControl(function() {
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this.setAttribute("form", "form1");
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form1.appendChild(this);
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assert_equals(this.form, form1);
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form2.id = "form1";
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form1.parentNode.insertBefore(form2, form1);
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assert_equals(this.form, form2);
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form2.parentNode.removeChild(form2);
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assert_equals(this.form, form1);
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form1.parentNode.appendChild(form2);
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assert_equals(this.form, form1);
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}, "When form element with same ID as the control's form attribute is inserted " +
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"earlier in tree order, the form owner is changed to the inserted form");
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testControl(function() {
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this.setAttribute("form", "form1");
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form2.appendChild(this);
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assert_equals(this.form, form1);
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var span = document.createElement("span");
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span.id = "form1";
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form1.parentNode.insertBefore(span, form1);
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assert_equals(this.form, null);
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form1.parentNode.appendChild(span);
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assert_equals(this.form, form1);
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}, "When non-form element with same ID as the control's form attribute is " +
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"inserted earlier in tree order, the control does not have a form owner");
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testControl(function() {
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this.setAttribute("form", "form1");
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form1.appendChild(this);
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assert_equals(this.form, form1);
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form1.parentNode.removeChild(form1);
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assert_equals(this.form, form1);
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}, "A control that is not in the document but has the form attribute set " +
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"is associated with the nearest ancestor form if one exists");
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});
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</script>
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</body>
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</html>
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