This method is most often overridden by some bad polyfill that
does not work correctly and breaks `$eval` and `$$eval` methods.
As a best-effort fix, use a `[...iterable]` throughout the code.
This change turns quoted match to be case-sensitive (as before),
but not strictly full-string for the whole element's text.
This is a fix for a case where element contains text nodes and child elements:
```html
<div>text1<span>child node</span>text2</div>
```
We now match this div by `text="text1"` and `text="text2"`.
- Do not check children when parent does not contain the text we look for.
- Minor caching improvements in evaluator.
This gives up to 5X performance boost on text-heavy pages.
- Snap to buttons, inputs, selects, etc.
- Try `<label>` selector in addition to the element.
- Use parent selectors when needed.
- Remove xpath fallback as it should be covered with css.
This changes `text=` and `:text()` selectors to match the element when:
- it's combined text content matches the text;
- combined text content of any immediate child does not match the text.
This allows the following markup to match "Some bold and italics text":
`<div>Some <b>bold</b> and <i>italics</i> text</div>`.
For the reference, "combined text content" is almost equal to `element.textContent`,
but with some changes like using value of `<input type=button>` or ignoring `<head>`.
This also includes some caching optimizations, meaningful in complex matches
that involve multiple calls to the text engine.
Performance changes (measured on large page with ~25000 elements):
- `:has-text()` - 14% faster.
- `text=` - 50% faster.
- `:text()` - 0-35% slower.
- `:text-matches()` - 28% slower.
This changes quoted text selector like `text="Foo Bar"` to perform
normalized whitespace match.
Most of the time users want to match some string visible on the page,
and that always means normalized whitespace.
We keep the case sensitivity and full-string vs substring difference
between quoted and unquoted matches.
These methods are useful for verification in tests, e.g.
```js
expect(await page.isEnabled(':text("Remove All")')).toBe(false);
await page.click(':text("Add Item")');
expect(await page.isVisible('.item:text("new item")')).toBe(true);
expect(await page.isEnabled(':text("Remove All")')).toBe(true);
```
We now default to `text` that does substring case-insensitive match
with normalized whitespace. `text-is` matches the whole string.
`matches-text` is renamed to `text-matches`.
When parsing CSS, we assume everything is a valid CSS function,
unless it is in the list of custom functions. This way we'll parse
future CSS functions automatically.
This enables filling the input based on the connected label:
```html
<label for=target>Name</label><input id=target>
```
```js
await page.fill('text=Name', 'Alice');
```
