NAME

WWW::Mechanize::Chrome - automate the Chrome browser

SYNOPSIS

  use Log::Log4perl qw(:easy);
  use WWW::Mechanize::Chrome;

  Log::Log4perl->easy_init($ERROR);  # Set priority of root logger to ERROR
  my $mech = WWW::Mechanize::Chrome->new();
  $mech->get('http://google.com');

  $mech->eval_in_page('alert("Hello Chrome")');
  my $png= $mech->content_as_png();

`WWW::Mechanize::Chrome->new %options`

  my $mech = WWW::Mechanize::Chrome->new();

autodie

Control whether HTTP errors are fatal.

  autodie => 0, # make HTTP errors non-fatal

The default is to have HTTP errors fatal, as that makes debugging much easier than expecting you to actually check the results of every action.

host

Specify the host where Chrome listens

  host => 'localhost'

Most likely you don't want to have Chrome listening on an outside port on a machine connected to the internet.

port

Specify the port of Chrome to connect to

  port => 9222

log

A premade Log::Log4perl object

launch_exe

Specify the path to the Chrome executable.

The default is chrome as found via $ENV{PATH}. You can also provide this information from the outside by setting $ENV{CHROME_BIN}.

launch_arg

Specify additional parameters to the Chrome executable.

  launch_arg => [ "--some-new-parameter=foo" ],

Interesting parameters might be

    '--window-size=1280x1696'
    '--ignore-certificate-errors'

startup_timeout

  startup_timeout => 20,

The maximum number of seconds to wait until Chrome is ready. This helps on slow systems where Chrome takes some time starting up. The process will try every second to connect to Chrome.

driver

A premade Chrome::DevToolsProtocol object.

report_js_errors

If set to 1, after each request tests for Javascript errors and warns. Useful for testing with use warnings qw(fatal).

`$mech->add_listener`

  my $url_loaded = $mech->add_listener('Network.responseReceived', sub {
      my( $info ) = @_;
      warn "Loaded URL $info->{response}->{url}: $info->{response}->{status}";
  });

Returns a listener object. If that object is discarded, the listener callback will be removed.

Calling this method in void context croaks.

`$mech->chrome_version`

  print $mech->chrome_version;

Returns the version of the Chrome executable that is used. This information needs launching the browser and asking for the version via the network.

`$mech->chrome_version_info`

  print $mech->chrome_version_info->{Browser};

Returns the version information of the Chrome executable and various other APIs of Chrome that the object is connected to.

`$mech->driver`

    my $driver = $mech->driver

Access the Chrome::DevToolsProtocol instance connecting to Chrome.

`$mech->tab`

    my $tab = $mech->tab

Access the tab hash of the Chrome::DevToolsProtocol instance connecting to Chrome. This represents the tab we control.

`$mech->on_dialog( $cb )`

  $mech->on_dialog( sub {
      my( $mech, $dialog ) = @_;
      warn $dialog->{message};
      $mech->handle_dialog( 1 ); # click "OK" / "yes" instead of "cancel"
  });

A callback for Javascript dialogs (alert(), prompt(), ... )

`$mech->handle_dialog( $accept, $prompt = undef )`

  $mech->on_dialog( sub {
      my( $mech, $dialog ) = @_;
      warn "[Javascript $dialog->{type}]: $dialog->{message}";
      $mech->handle_dialog( 1 ); # click "OK" / "yes" instead of "cancel"
  });

Closes the current Javascript dialog. Depending on

`$mech->js_errors()`

  print $_->{message}
      for $mech->js_errors();

An interface to the Javascript Error Console

Returns the list of errors in the JEC

Maybe this should be called js_messages or js_console_messages instead.

`$mech->clear_js_errors()`

    $mech->clear_js_errors();

Clears all Javascript messages from the console

`$mech->eval_in_page( $str, @args )`

`$mech->eval( $str, @args )`

  my ($value, $type) = $mech->eval( '2+2' );

Evaluates the given Javascript fragment in the context of the web page. Returns a pair of value and Javascript type.

This allows access to variables and functions declared "globally" on the web page.

This method is special to WWW::Mechanize::Chrome.

`$mech->eval_in_chrome $code, @args`

  $mech->eval_in_chrome(<<'JS', "Foobar/1.0");
      this.settings.userAgent= arguments[0]
  JS

Evaluates Javascript code in the context of Chrome.

This allows you to modify properties of Chrome.

This is currently not implemented.

`$mech->highlight_node( @nodes )`

    my @links = $mech->selector('a');
    $mech->highlight_node(@links);
    print $mech->content_as_png();

Convenience method that marks all nodes in the arguments with a red frame.

This is convenient if you need visual verification that you've got the right nodes.

`$mech->get( $url, %options )`

  my $response = $mech->get( $url );

Retrieves the URL URL.

It returns a <HTTP::Response> object for interface compatibility with WWW::Mechanize.

Note that Chrome does not support download of files.

`$mech->_collectEvents`

  my $events = $mech->_collectEvents(
      sub { $_[0]->{method} eq 'Page.loadEventFired' }
  );
  my( $e,$r) = Future->wait_all( $events, $self->driver->send_message(...));

Internal method to create a Future that waits for an event that is sent by Chrome.

The subroutine is the predicate to check to see if the current event is the event we have been waiting for.

The result is a Future that will return all captured events.

`$mech->get_local( $filename , %options )`

  $mech->get_local('test.html');

Shorthand method to construct the appropriate file:// URI and load it into Chrome. Relative paths will be interpreted as relative to $0.

This method accepts the same options as ->get().

This method is special to WWW::Mechanize::Chrome but could also exist in WWW::Mechanize through a plugin.

Warning: Chrome does not handle local files well. Especially subframes do not get loaded properly.

`$mech->post( $url, %options )`

not implemented

  $mech->post( 'http://example.com',
      params => { param => "Hello World" },
      headers => {
        "Content-Type" => 'application/x-www-form-urlencoded',
      },
      charset => 'utf-8',
  );

Sends a POST request to $url.

A Content-Length header will be automatically calculated if it is not given.

The following options are recognized:

headers - a hash of HTTP headers to send. If not given, the content type will be generated automatically.
data - the raw data to send, if you've encoded it already.

`$mech->reload( %options )`

  $mech->reload( ignoreCache => 1 )

Acts like the reload button in a browser: repeats the current request. The history (as per the "back" method) is not altered.

Returns the HTTP::Response object from the reload, or undef if there's no current request.

`$mech->add_header( $name => $value, ... )`

    $mech->add_header(
        'X-WWW-Mechanize-Chrome' => "I'm using it",
        Encoding => 'text/klingon',
    );

This method sets up custom headers that will be sent with every HTTP(S) request that Chrome makes.

Note that currently, we only support one value per header.

`$mech->delete_header( $name , $name2... )`

    $mech->delete_header( 'User-Agent' );

Removes HTTP headers from the agent's list of special headers. Note that Chrome may still send a header with its default value.

`$mech->reset_headers`

    $mech->reset_headers();

Removes all custom headers and makes Chrome send its defaults again.

`$mech->block_urls()`

    $mech->block_urls( '//facebook.com/js/conversions/tracking.js' );

Sets the list of blocked URLs. These URLs will not be retrieved by Chrome when loading a page. This is useful to eliminate tracking images or to test resilience in face of bad network conditions.

`$mech->res()` / `$mech->response(%options)`

    my $response = $mech->response(headers => 0);

Returns the current response as a HTTP::Response object.

`$mech->success()`

    $mech->get('http://google.com');
    print "Yay"
        if $mech->success();

Returns a boolean telling whether the last request was successful. If there hasn't been an operation yet, returns false.

This is a convenience function that wraps $mech->res->is_success.

`$mech->status()`

    $mech->get('http://google.com');
    print $mech->status();
    # 200

Returns the HTTP status code of the response. This is a 3-digit number like 200 for OK, 404 for not found, and so on.

`$mech->back()`

    $mech->back();

Goes one page back in the page history.

Returns the (new) response.

`$mech->forward()`

    $mech->forward();

Goes one page forward in the page history.

Returns the (new) response.

`$mech->stop()`

    $mech->stop();

Stops all loading in Chrome, as if you pressed ESC.

This function is mostly of use in callbacks or in a timer callback from your event loop.

`$mech->uri()`

    print "We are at " . $mech->uri;

Returns the current document URI.

CONTENT METHODS

`$mech->document()`

    print $self->document->get->{nodeId}

Returns the document object as a Future.

This is WWW::Mechanize::Chrome specific.

`$mech->content( %options )`

  print $mech->content;
  print $mech->content( format => 'html' ); # default
  print $mech->content( format => 'text' ); # identical to ->text

This always returns the content as a Unicode string. It tries to decode the raw content according to its input encoding. This currently only works for HTML pages, not for images etc.

Recognized options:

format - the stuff to return

The allowed values are html and text. The default is html.

`$mech->text()`

    print $mech->text();

Returns the text of the current HTML content. If the content isn't HTML, $mech will die.

`$mech->content_encoding()`

    print "The content is encoded as ", $mech->content_encoding;

Returns the encoding that the content is in. This can be used to convert the content from UTF-8 back to its native encoding.

`$mech->update_html( $html )`

  $mech->update_html($html);

Writes $html into the current document. This is mostly implemented as a convenience method for HTML::Display::MozRepl.

`$mech->base()`

  print $mech->base;

Returns the URL base for the current page.

The base is either specified through a base tag or is the current URL.

This method is specific to WWW::Mechanize::Chrome.

`$mech->content_type()`

`$mech->ct()`

  print $mech->content_type;

Returns the content type of the currently loaded document

`$mech->is_html()`

  print $mech->is_html();

Returns true/false on whether our content is HTML, according to the HTTP headers.

`$mech->title()`

  print "We are on page " . $mech->title;

Returns the current document title.

EXTRACTION METHODS

`$mech->links()`

  print $_->text . " -> " . $_->url . "\n"
      for $mech->links;

Returns all links in the document as WWW::Mechanize::Link objects.

Currently accepts no parameters. See ->xpath or ->selector when you want more control.

`$mech->selector( $css_selector, %options )`

  my @text = $mech->selector('p.content');

Returns all nodes matching the given CSS selector. If $css_selector is an array reference, it returns all nodes matched by any of the CSS selectors in the array.

This takes the same options that ->xpath does.

This method is implemented via WWW::Mechanize::Plugin::Selector.

`$mech->find_link_dom( %options )`

  print $_->{innerHTML} . "\n"
      for $mech->find_link_dom( text_contains => 'CPAN' );

A method to find links, like WWW::Mechanize's ->find_links method. This method returns DOM objects from Chrome instead of WWW::Mechanize::Link objects.

Note that Chrome might have reordered the links or frame links in the document so the absolute numbers passed via n might not be the same between WWW::Mechanize and WWW::Mechanize::Chrome.

The supported options are:

text and text_contains and text_regex

Match the text of the link as a complete string, substring or regular expression.

Matching as a complete string or substring is a bit faster, as it is done in the XPath engine of Chrome.
id and id_contains and id_regex

Matches the id attribute of the link completely or as part
name and name_contains and name_regex

Matches the name attribute of the link
url and url_regex

Matches the URL attribute of the link (href, src or content).
class - the class attribute of the link
n - the (1-based) index. Defaults to returning the first link.
single - If true, ensure that only one element is found. Otherwise croak or carp, depending on the autodie parameter.
one - If true, ensure that at least one element is found. Otherwise croak or carp, depending on the autodie parameter.

The method croaks if no link is found. If the single option is true, it also croaks when more than one link is found.

`$mech->find_link( %options )`

  print $_->text . "\n"
      for $mech->find_link( text_contains => 'CPAN' );

A method quite similar to WWW::Mechanize's method. The options are documented in ->find_link_dom.

Returns a WWW::Mechanize::Link object.

This defaults to not look through child frames.

`$mech->find_all_links( %options )`

  print $_->text . "\n"
      for $mech->find_all_links( text_regex => qr/google/i );

Finds all links in the document. The options are documented in ->find_link_dom.

Returns them as list or an array reference, depending on context.

This defaults to not look through child frames.

`$mech->find_all_links_dom %options`

  print $_->{innerHTML} . "\n"
      for $mech->find_all_links_dom( text_regex => qr/google/i );

Finds all matching linky DOM nodes in the document. The options are documented in ->find_link_dom.

Returns them as list or an array reference, depending on context.

This defaults to not look through child frames.

`$mech->follow_link( $link )`

`$mech->follow_link( %options )`

  $mech->follow_link( xpath => '//a[text() = "Click here!"]' );

Follows the given link. Takes the same parameters that find_link_dom uses.

Note that ->follow_link will only try to follow link-like things like A tags.

`$mech->xpath( $query, %options )`

    my $link = $mech->xpath('//a[id="clickme"]', one => 1);
    # croaks if there is no link or more than one link found

    my @para = $mech->xpath('//p');
    # Collects all paragraphs

    my @para_text = $mech->xpath('//p/text()', type => $mech->xpathResult('STRING_TYPE'));
    # Collects all paragraphs as text

Runs an XPath query in Chrome against the current document.

If you need more information about the returned results, use the ->xpathEx() function.

The options allow the following keys:

document - document in which the query is to be executed. Use this to search a node within a specific subframe of $mech->document.
frames - if true, search all documents in all frames and iframes. This may or may not conflict with node. This will default to the frames setting of the WWW::Mechanize::Chrome object.
node - node relative to which the query is to be executed. Note that you will have to use a relative XPath expression as well. Use
```
  .//foo
```
instead of
```
  //foo
```
single - If true, ensure that only one element is found. Otherwise croak or carp, depending on the autodie parameter.
one - If true, ensure that at least one element is found. Otherwise croak or carp, depending on the autodie parameter.
maybe - If true, ensure that at most one element is found. Otherwise croak or carp, depending on the autodie parameter.
all - If true, return all elements found. This is the default. You can use this option if you want to use ->xpath in scalar context to count the number of matched elements, as it will otherwise emit a warning for each usage in scalar context without any of the above restricting options.
any - no error is raised, no matter if an item is found or not.

Returns the matched results.

You can pass in a list of queries as an array reference for the first parameter. The result will then be the list of all elements matching any of the queries.

This is a method that is not implemented in WWW::Mechanize.

In the long run, this should go into a general plugin for WWW::Mechanize.

`$mech->by_id( $id, %options )`

  my @text = $mech->by_id('_foo:bar');

Returns all nodes matching the given ids. If $id is an array reference, it returns all nodes matched by any of the ids in the array.

This method is equivalent to calling ->xpath :

    $self->xpath(qq{//*[\@id="$_"]}, %options)

It is convenient when your element ids get mistaken for CSS selectors.

`$mech->click( $name [,$x ,$y] )`

  $mech->click( 'go' );
  $mech->click({ xpath => '//button[@name="go"]' });

Has the effect of clicking a button (or other element) on the current form. The first argument is the name of the button to be clicked. The second and third arguments (optional) allow you to specify the (x,y) coordinates of the click.

If there is only one button on the form, $mech->click() with no arguments simply clicks that one button.

If you pass in a hash reference instead of a name, the following keys are recognized:

selector - Find the element to click by the CSS selector
xpath - Find the element to click by the XPath query
dom - Click on the passed DOM element

You can use this to click on arbitrary page elements. There is no convenient way to pass x/y co-ordinates with this method.
id - Click on the element with the given id

This is useful if your document ids contain characters that do look like CSS selectors. It is equivalent to
```
    xpath => qq{//*[\@id="$id"]}
```

Returns a HTTP::Response object.

As a deviation from the WWW::Mechanize API, you can also pass a hash reference as the first parameter. In it, you can specify the parameters to search much like for the find_link calls.

`$mech->click_button( ... )`

  $mech->click_button( name => 'go' );
  $mech->click_button( input => $mybutton );

Has the effect of clicking a button on the current form by specifying its name, value, or index. Its arguments are a list of key/value pairs. Only one of name, number, input or value must be specified in the keys.

name - name of the button
value - value of the button
input - DOM node
id - id of the button
number - number of the button

If you find yourself wanting to specify a button through its selector or xpath, consider using ->click instead.

FORM METHODS

`$mech->current_form()`

  print $mech->current_form->{name};

Returns the current form.

This method is incompatible with WWW::Mechanize. It returns the DOM <form> object and not a HTML::Form instance.

The current form will be reset by WWW::Mechanize::Chrome on calls to ->get() and ->get_local(), and on calls to ->submit() and ->submit_with_fields.

`$mech->dump_forms( [$fh] )`

  open my $fh, '>', 'form-log.txt'
      or die "Couldn't open logfile 'form-log.txt': $!";
  $mech->dump_forms( $fh );

Prints a dump of the forms on the current page to the filehandle $fh. If $fh is not specified or is undef, it dumps to STDOUT.

`$mech->form_name( $name [, %options] )`

  $mech->form_name( 'search' );

Selects the current form by its name. The options are identical to those accepted by the "$mech->xpath" method.

`$mech->form_id( $id [, %options] )`

  $mech->form_id( 'login' );

Selects the current form by its id attribute. The options are identical to those accepted by the "$mech->xpath" method.

This is equivalent to calling

    $mech->by_id($id,single => 1,%options)

`$mech->form_number( $number [, %options] )`

  $mech->form_number( 2 );

Selects the numberth form. The options are identical to those accepted by the "$mech->xpath" method.

`$mech->form_with_fields( [$options], @fields )`

  $mech->form_with_fields(
      'user', 'password'
  );

Find the form which has the listed fields.

If the first argument is a hash reference, it's taken as options to ->xpath.

`$mech->forms( %options )`

  my @forms = $mech->forms();

When called in a list context, returns a list of the forms found in the last fetched page. In a scalar context, returns a reference to an array with those forms.

The options are identical to those accepted by the "$mech->selector" method.

The returned elements are the DOM <form> elements.

`$mech->field( $selector, $value, [,\@pre_events [,\@post_events]] )`

  $mech->field( user => 'joe' );
  $mech->field( not_empty => '', [], [] ); # bypass JS validation

Sets the field with the name given in $selector to the given value. Returns the value.

The method understands very basic CSS selectors in the value for $selector, like the HTML::Form find_input() method.

A selector prefixed with '#' must match the id attribute of the input. A selector prefixed with '.' matches the class attribute. A selector prefixed with '^' or with no prefix matches the name attribute.

By passing the array reference @pre_events, you can indicate which Javascript events you want to be triggered before setting the value. @post_events contains the events you want to be triggered after setting the value.

By default, the events set in the constructor for pre_events and post_events are triggered.

`$mech->upload( $selector, $value )`

  $mech->upload( user_picture => 'C:/Users/Joe/face.png' );

Sets the file upload field with the name given in $selector to the given file. The filename must be an absolute path and filename in the local filesystem.

The method understands very basic CSS selectors in the value for $selector, like the ->field method.

`$mech->value( $selector_or_element, [%options] )`

    print $mech->value( 'user' );

Returns the value of the field given by $selector_or_name or of the DOM element passed in.

The legacy form of

    $mech->value( name => value );

is also still supported but will likely be deprecated in favour of the ->field method.

For fields that can have multiple values, like a select field, the method is context sensitive and returns the first selected value in scalar context and all values in list context.

Note that this method does not support file uploads. See the ->upload method for that.

`$mech->get_set_value( %options )`

Allows fine-grained access to getting/setting a value with a different API. Supported keys are:

  name
  value
  pre
  post

in addition to all keys that $mech->xpath supports.

`$mech->submit( $form )`

  $mech->submit;

Submits the form. Note that this does not fire the onClick event and thus also does not fire eventual Javascript handlers. Maybe you want to use $mech->click instead.

The default is to submit the current form as returned by $mech->current_form.

`$mech->submit_form( %options )`

  $mech->submit_form(
      with_fields => {
          user => 'me',
          pass => 'secret',
      }
  );

This method lets you select a form from the previously fetched page, fill in its fields, and submit it. It combines the form_number/form_name, set_fields and click methods into one higher level call. Its arguments are a list of key/value pairs, all of which are optional.

form => $mech->current_form()

Specifies the form to be filled and submitted. Defaults to the current form.
fields => \%fields

Specifies the fields to be filled in the current form
with_fields => \%fields

Probably all you need for the common case. It combines a smart form selector and data setting in one operation. It selects the first form that contains all fields mentioned in \%fields. This is nice because you don't need to know the name or number of the form to do this.

(calls "$mech->form_with_fields()" and "$mech->set_fields()").

If you choose this, the form_number, form_name, form_id and fields options will be ignored.

`$mech->set_fields( $name => $value, ... )`

  $mech->set_fields(
      user => 'me',
      pass => 'secret',
  );

This method sets multiple fields of the current form. It takes a list of field name and value pairs. If there is more than one field with the same name, the first one found is set. If you want to select which of the duplicate field to set, use a value which is an anonymous array which has the field value and its number as the 2 elements.

CONTENT RENDERING METHODS

`$mech->content_as_png()`

    my $png_data = $mech->content_as_png();

    # Create scaled-down 480px wide preview
    my $png_data = $mech->content_as_png(undef, { width => 480 });

Returns the given tab or the current page rendered as PNG image.

All parameters are optional.

This method is specific to WWW::Mechanize::Chrome.

`$mech->viewport_size`

  print Dumper $mech->viewport_size;
  $mech->viewport_size({ width => 1388, height => 792 });

Returns (or sets) the new size of the viewport (the "window").

The recognized keys are:

  width
  height
  deviceScaleFactor
  mobile
  screenWidth
  screenHeight
  positionX
  positionY

`$mech->element_as_png( $element )`

    my $shiny = $mech->selector('#shiny', single => 1);
    my $i_want_this = $mech->element_as_png($shiny);

Returns PNG image data for a single element

`$mech->render_element( %options )`

    my $shiny = $mech->selector('#shiny', single => 1);
    my $i_want_this= $mech->render_element(
        element => $shiny,
        format => 'png',
    );

Returns the data for a single element or writes it to a file. It accepts all options of ->render_content.

Note that while the image will have the node in the upper left corner, the width and height of the resulting image will still be the size of the browser window. Cut the image using element_coordinates if you need exactly the element.

`$mech->element_coordinates( $element )`

    my $shiny = $mech->selector('#shiny', single => 1);
    my ($pos) = $mech->element_coordinates($shiny);
    print $pos->{left},',', $pos->{top};

Returns the page-coordinates of the $element in pixels as a hash with four entries, left, top, width and height.

This function might get moved into another module more geared towards rendering HTML.

`$mech->render_content(%options)`

    my $pdf_data = $mech->render( format => 'pdf' );

Returns the current page rendered in the specified format as a bytestring or stores the current page in the specified filename.

This method is specific to WWW::Mechanize::Chrome.

`$mech->content_as_pdf(%options)`

    my $pdf_data = $mech->content_as_pdf();

    $mech->content_as_pdf(
        filename => '/path/to/my.pdf',
    );

Returns the current page rendered in PDF format as a bytestring.

This method is specific to WWW::Mechanize::Chrome.

Currently, the data transfer between Chrome and Perl is done through a temporary file, so directly using the filename option may be faster.

INTERNAL METHODS

These are methods that are available but exist mostly as internal helper methods. Use of these is discouraged.

`$mech->element_query( \@elements, \%attributes )`

    my $query = $mech->element_query(['input', 'select', 'textarea'],
                               { name => 'foo' });

Returns the XPath query that searches for all elements with tagNames in @elements having the attributes %attributes. The @elements will form an or condition, while the attributes will form an and condition.

DEBUGGING METHODS

This module can collect the screencasts that Chrome can produce. The screencasts are sent to your callback which either feeds them to ffmpeg to create a video out of them or dumps them to disk as sequential images.

  sub saveFrame {
      my( $mech, $framePNG ) = @_;
      # just ignore this frame
  }

  $mech->setScreenFrameCallback( \&saveFrame );
  ... do stuff ...
  $mech->setScreenFrameCallback( undef ); # stop recording

`$mech->sleep`

  $mech->sleep( 2 ); # wait for things to settle down

Suspends the progress of the program while still handling messages from Chrome.

The main use of this method is to give Chrome enough time to send all its screencast frames and to catch up before shutting down the connection.

INCOMPATIBILITIES WITH WWW::Mechanize

As this module is in a very early stage of development, there are many incompatibilities. The main thing is that only the most needed WWW::Mechanize methods have been implemented by me so far.

Unsupported Methods

At least the following methods are unsupported:

->find_all_inputs

This function is likely best implemented through $mech->selector.
->find_all_submits

This function is likely best implemented through $mech->selector.
->images

This function is likely best implemented through $mech->selector.
->find_image

This function is likely best implemented through $mech->selector.
->find_all_images

This function is likely best implemented through $mech->selector.

Functions that will likely never be implemented

These functions are unlikely to be implemented because they make little sense in the context of Chrome.

->clone
->credentials( $username, $password )
->get_basic_credentials( $realm, $uri, $isproxy )
->clear_credentials()
->put

I have no use for it
->post

Selenium does not support POST requests

INSTALLING

Install the `chrome` executable

Test it has been installed on your system:

On unixish systems, the executable is named chrome-browser. Check that Chrome starts:

chrome-browser --version

On Windows, the executable is named chrome.exe and doesn't output information to the console. Check that Chrome starts:

chrome

REPOSITORY

The public repository of this module is https://github.com/Corion/www-mechanize-chrome.

SUPPORT

The public support forum of this module is https://perlmonks.org/.

TALKS

I've given a German talk at GPW 2017, see http://act.yapc.eu/gpw2017/talk/7027 and https://corion.net/talks for the slides.

BUG TRACKER

Please report bugs in this module via the RT CPAN bug queue at https://rt.cpan.org/Public/Dist/Display.html?Name=WWW-Mechanize-Chrome or via mail to www-mechanize-Chrome-Bugs@rt.cpan.org.

AUTHOR

Max Maischein corion@cpan.org

COPYRIGHT (c)

LICENSE

This module is released under the same terms as Perl itself.

To install WWW::Mechanize::Chrome, copy and paste the appropriate command in to your terminal.

cpanm

cpanm WWW::Mechanize::Chrome

CPAN shell

perl -MCPAN -e shell
install WWW::Mechanize::Chrome

For more information on module installation, please visit the detailed CPAN module installation guide.

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NAME

SYNOPSIS

WWW::Mechanize::Chrome->new %options

$mech->add_listener

$mech->chrome_version

$mech->chrome_version_info

$mech->driver

$mech->tab

$mech->on_dialog( $cb )

$mech->handle_dialog( $accept, $prompt = undef )

$mech->js_errors()

$mech->clear_js_errors()

$mech->eval_in_page( $str, @args )

$mech->eval( $str, @args )

$mech->eval_in_chrome $code, @args

$mech->highlight_node( @nodes )

NAVIGATION METHODS

$mech->get( $url, %options )

$mech->_collectEvents

$mech->get_local( $filename , %options )

$mech->post( $url, %options )

$mech->reload( %options )

$mech->add_header( $name => $value, ... )

$mech->delete_header( $name , $name2... )

$mech->reset_headers

$mech->block_urls()

$mech->res() / $mech->response(%options)

$mech->success()

$mech->status()

$mech->back()

$mech->forward()

$mech->stop()

$mech->uri()

CONTENT METHODS

$mech->document()

$mech->content( %options )

$mech->text()

$mech->content_encoding()

$mech->update_html( $html )

$mech->base()

$mech->content_type()

$mech->ct()

$mech->is_html()

$mech->title()

EXTRACTION METHODS

$mech->links()

$mech->selector( $css_selector, %options )

$mech->find_link_dom( %options )

$mech->find_link( %options )

$mech->find_all_links( %options )

$mech->find_all_links_dom %options

$mech->follow_link( $link )

$mech->follow_link( %options )

$mech->xpath( $query, %options )

$mech->by_id( $id, %options )

$mech->click( $name [,$x ,$y] )

$mech->click_button( ... )

FORM METHODS

$mech->current_form()

$mech->dump_forms( [$fh] )

$mech->form_name( $name [, %options] )

$mech->form_id( $id [, %options] )

$mech->form_number( $number [, %options] )

$mech->form_with_fields( [$options], @fields )

$mech->forms( %options )

$mech->field( $selector, $value, [,\@pre_events [,\@post_events]] )

$mech->upload( $selector, $value )

$mech->value( $selector_or_element, [%options] )

$mech->get_set_value( %options )

$mech->submit( $form )

$mech->submit_form( %options )

$mech->set_fields( $name => $value, ... )

CONTENT RENDERING METHODS

$mech->content_as_png()

$mech->viewport_size

$mech->element_as_png( $element )

$mech->render_element( %options )

$mech->element_coordinates( $element )

$mech->render_content(%options)

$mech->content_as_pdf(%options)

`WWW::Mechanize::Chrome->new %options`

`$mech->add_listener`

`$mech->chrome_version`

`$mech->chrome_version_info`

`$mech->driver`

`$mech->tab`

`$mech->on_dialog( $cb )`

`$mech->handle_dialog( $accept, $prompt = undef )`

`$mech->js_errors()`

`$mech->clear_js_errors()`

`$mech->eval_in_page( $str, @args )`

`$mech->eval( $str, @args )`

`$mech->eval_in_chrome $code, @args`

`$mech->highlight_node( @nodes )`

`$mech->get( $url, %options )`

`$mech->_collectEvents`

`$mech->get_local( $filename , %options )`

`$mech->post( $url, %options )`

`$mech->reload( %options )`

`$mech->add_header( $name => $value, ... )`

`$mech->delete_header( $name , $name2... )`

`$mech->reset_headers`

`$mech->block_urls()`

`$mech->res()` / `$mech->response(%options)`

`$mech->success()`

`$mech->status()`

`$mech->back()`

`$mech->forward()`

`$mech->stop()`

`$mech->uri()`

`$mech->document()`

`$mech->content( %options )`

`$mech->text()`

`$mech->content_encoding()`

`$mech->update_html( $html )`

`$mech->base()`

`$mech->content_type()`

`$mech->ct()`

`$mech->is_html()`

`$mech->title()`

`$mech->links()`

`$mech->selector( $css_selector, %options )`

`$mech->find_link_dom( %options )`

`$mech->find_link( %options )`

`$mech->find_all_links( %options )`

`$mech->find_all_links_dom %options`

`$mech->follow_link( $link )`

`$mech->follow_link( %options )`

`$mech->xpath( $query, %options )`

`$mech->by_id( $id, %options )`

`$mech->click( $name [,$x ,$y] )`

`$mech->click_button( ... )`

`$mech->current_form()`

`$mech->dump_forms( [$fh] )`

`$mech->form_name( $name [, %options] )`

`$mech->form_id( $id [, %options] )`

`$mech->form_number( $number [, %options] )`

`$mech->form_with_fields( [$options], @fields )`

`$mech->forms( %options )`

`$mech->field( $selector, $value, [,\@pre_events [,\@post_events]] )`

`$mech->upload( $selector, $value )`

`$mech->value( $selector_or_element, [%options] )`

`$mech->get_set_value( %options )`

`$mech->submit( $form )`

`$mech->submit_form( %options )`

`$mech->set_fields( $name => $value, ... )`

`$mech->content_as_png()`

`$mech->viewport_size`

`$mech->element_as_png( $element )`

`$mech->render_element( %options )`

`$mech->element_coordinates( $element )`

`$mech->render_content(%options)`

`$mech->content_as_pdf(%options)`

`$mech->element_query( \@elements, \%attributes )`

`$mech->sleep`

Install the `chrome` executable