# Browser

## Configuration

Keys in settings file, e.g. `_wasd_settings.yml`:

* `url` *required:* Your app URL;
* `implicit_timeout`: Implicit wait timeout in seconds, default `5`;
* `window_size`: `'maximize'` or explicitly `'1280x1024'`, default `'800x600'`;
* `protocol`: remote WebDriver protocol, default `'http'`;
* `host`: remote WebDriver host, default `'localhost'`;
* `port`: remote WebDriver port, default `'4444'`;
* `path`: remote WebDriver path, default `'/wd/hub'`;
* `foo_bar_baz`: any data, e.g.:

```yaml
username: 'admin'
password: 'themostsecurepasswordintheworld'
```

* `capabilities` *required:* Selenium desired capabilities, e.g. for **Chrome**:

```yaml
capabilities:
    browserName: 'chrome'
    unexpectedAlertBehaviour: 'accept'
    loggingPrefs:
        browser: 'INFO'
    chromeOptions:
        args: ['--disable-infobars']
```

{% hint style="info" %}
Note:  The key`"chromeOptions"` was changed in chromedriver v2.31 to `"goog:chromeOptions"`
{% endhint %}

## Locating Elements

Most methods operate on a DOM element. Locator must be instance of`Element` class.

```markup
<!-- Given DOM -->
<foo id="parent">
    <bar id="child" class="message">Hello world!</bar>
    <bar id="child" class="message">Goodbye and Farewell!</bar>
</foo>
```

```python
from wasd.wd import Element as E

# To locate <foo> element:
foo = E("foo")
foo = E("#parent")

# To locate <bar> element:
bar = E("bar")
bar = E(".message")
bar = E("#child", E("//foo")) # Pass a second argument
                                # to locate element within given context
```


---

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