NAME

Chrome::DevToolsProtocol::Target - wrapper for talking to a page in a Target

SYNOPSIS

# Usually, WWW::Mechanize::Chrome automatically creates a driver for you
my $driver = Chrome::DevToolsProtocol::Target->new(
    transport => $target,
);
$driver->connect( new_tab => 1 )->get

METHODS

->new( %args )

my $driver = Chrome::DevToolsProtocol::Target->new(
    transport => $target,
    auto_close => 0,
    error_handler => sub {
        # Reraise the error
        croak $_[1]
    },
);

These members can mostly be set through the constructor arguments:

json

The JSON decoder used

tab

Which tab to reuse (if any)

autoclose

Close the tab when the object goes out of scope

log

A premade Log::Log4perl object to act as logger

EVENTS

message

A callback invoked for every message

transport

The event-loop specific transport backend

->future

my $f = $driver->future();

Returns a backend-specific generic future

->endpoint

my $url = $driver->endpoint();

Returns the URL endpoint to talk to for the connected tab

->add_listener

my $l = $driver->add_listener(
    'Page.domContentEventFired',
    sub {
        warn "The DOMContent event was fired";
    },
);

# ...

undef $l; # stop listening

Adds a callback for the given event name. The callback will be removed once the return value goes out of scope.

->remove_listener

$driver->remove_listener($l);

Explicitly remove a listener.

->log

$driver->log('debug', "Warbling doodads", { doodad => 'this' } );

Log a message

->connect

my $f = $driver->connect()->get;

Asynchronously connect to the Chrome browser, returning a Future.

->close

$driver->close();

Shut down the connection to our tab and close it.

->sleep

$driver->sleep(0.2)->get;

Sleep for the amount of seconds in an event-loop compatible way

->one_shot

my $f = $driver->one_shot('Page.domContentEventFired')->get;

Returns a future that resolves when the event is received

$chrome->json_get

my $data = $driver->json_get( 'version' )->get;

Requests an URL and returns decoded JSON from the future

$chrome->version_info

print $chrome->version_info->get->{"protocolVersion"};

$chrome->protocol_version

print $chrome->protocol_version->get;

$chrome->send_packet

$chrome->send_packet('Page.handleJavaScriptDialog',
    accept => JSON::true,
);

Sends a JSON packet to the remote end

$chrome->send_message

my $future = $chrome->send_message('DOM.querySelectorAll',
    selector => 'p',
    nodeId => $node,
);
my $nodes = $future->get;

This function expects a response. The future will not be resolved until Chrome has sent a response to this query.

$chrome->callFunctionOn

$chrome->evaluate

$chrome->eval

$chrome->get_domains

$chrome->list_tabs

my @tabs = $chrome->list_tabs->get();

$chrome->new_tab

my $new_tab = $chrome->new_tab('https://www.google.com')->get;

$chrome->activate_tab

$chrome->activate_tab( $tab )->get

Brings the tab to the foreground of the application

$target->getTargetInfo

Returns information about the current target

$target->info

Returns information about the current target

$target->title

Returns the title of the current target

$target->getVersion

Returns information about the Chrome instance we are connected to.

$target->createTarget

my $info = $chrome->createTarget(
    url => 'about:blank',
    width => 1280,
    height => 800,
    newWindow => JSON::false,
    background => JSON::false,
)->get;
print $info->{targetId};

Creates a new target

$target->attach

$target->attach();

Attaches to the target set up in targetId and sessionId. If a targetId is given, attaches to it and remembers the value.

SEE ALSO

The inofficial Chrome debugger API documentation at https://github.com/buggerjs/bugger-daemon/blob/master/README.md#api

Chrome DevTools at https://chromedevtools.github.io/devtools-protocol/1-2

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/.

BUG TRACKER

Please report bugs in this module via the Github bug queue at https://github.com/Corion/WWW-Mechanize-Chrome/issues

AUTHOR

Max Maischein corion@cpan.org

COPYRIGHT (c)

Copyright 2010-2024 by Max Maischein corion@cpan.org.

LICENSE

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

cpanm WWW::Mechanize::Chrome

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