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Steps 7-9 of the input type change algorithm

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Spec: https://html.spec.whatwg.org/multipage/input.html#input-type-change

In short, this resets the selection to the start of the field when the
type has changed from one which doesn't support the selection API to one
that does.

I couldn't see an existing WPT test covering this.
This commit is contained in:
Jon Leighton 2017-12-11 21:30:47 +01:00
parent ce7bae8834
commit a8b64aca2a
5 changed files with 40 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

2
tests/wpt/metadata/MANIFEST.json
View file

@ -553459,7 +553459,7 @@
"testharness"
],
"html/semantics/forms/the-input-element/type-change-state.html": [
"d731573ee091b7e658ea0b1ded46a764e8165f6c",
"6ca94002609dae5548e5c832e4a84639c1094f69",
"testharness"
],
"html/semantics/forms/the-input-element/url.html": [

26
tests/wpt/web-platform-tests/html/semantics/forms/the-input-element/type-change-state.html
View file

@ -31,6 +31,11 @@
{ type: "reset" },
{ type: "button" }
];
const selectionStart = 2;
const selectionEnd = 5;
const selectionDirection = "backward";
for (var i = 0; i < types.length; i++) {
for (var j = 0; j < types.length; j++) {
if (types[i] != types[j]) {
@ -49,6 +54,13 @@
assert_equals(input.value, "");
} else {
input.value = expected;
const previouslySelectable = (input.selectionStart !== null);
if (previouslySelectable) {
input.setSelectionRange(selectionStart, selectionEnd, selectionDirection);
}
input.type = types[j].type; // change state
// type[i] sanitization
@ -69,6 +81,20 @@
}
assert_equals(input.value, expected, "input.value should be '" + expected + "' after change of state");
const nowSelectable = (input.selectionStart !== null);
if (nowSelectable) {
if (previouslySelectable) {
assert_equals(input.selectionStart, selectionStart, "selectionStart should be unchanged");
assert_equals(input.selectionEnd, selectionEnd, "selectionEnd should be unchanged");
assert_equals(input.selectionDirection, selectionDirection, "selectionDirection should be unchanged");
} else {
assert_equals(input.selectionStart, 0, "selectionStart should be 0");
assert_equals(input.selectionEnd, 0, "selectionEnd should be 0");
assert_equals(input.selectionDirection, "none", "selectionDirection should be 'none'");
}
}
}
}, "change state from " + types[i].type + " to " + types[j].type);
}