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1<?php
2/**
3 * A class that adds a search dashboard to wp-admin.
4 *
5 * @package automattic/jetpack
6 */
7
8namespace Automattic\Jetpack\Search;
9
10use Automattic\Jetpack\Admin_UI\Admin_Menu;
11use Automattic\Jetpack\Assets;
12use Automattic\Jetpack\Connection\Initial_State as Connection_Initial_State;
13use Automattic\Jetpack\Connection\Manager as Connection_Manager;
14use Automattic\Jetpack\Status;
15use Automattic\Jetpack\Tracking;
16/**
17 * Responsible for adding a search dashboard to wp-admin.
18 *
19 * @package Automattic\Jetpack\Search
20 */
21class Dashboard {
22    /**
23     * Whether the class has been initialized
24     *
25     * @var boolean
26     */
27    private static $initialized = false;
28    /**
29     * Plan instance
30     *
31     * @var \Automattic\Jetpack\Search\Plan
32     */
33    protected $plan;
34
35    /**
36     * Connection manager instance
37     *
38     * @var \Automattic\Jetpack\Connection\Manager
39     */
40    protected $connection_manager;
41
42    /**
43     * Module_Control instance
44     *
45     * @var \Automattic\Jetpack\Search\Module_Control
46     */
47    protected $module_control;
48
49    /**
50     * Priority for the dashboard menu
51     * For Jetpack sites: Akismet uses 4, so we use 1 to ensure both menus are added when only they exist.
52     * For Simple sites: the value is overriden in a child class with value 100000 to wait for all menus to be registered.
53     *
54     * @var int
55     */
56    protected $search_menu_priority = 1;
57
58    /**
59     * Contructor
60     *
61     * @param \Automattic\Jetpack\Search\Plan           $plan - Plan instance.
62     * @param \Automattic\Jetpack\Connection\Manager    $connection_manager - Connection Manager instance.
63     * @param \Automattic\Jetpack\Search\Module_Control $module_control - Module_Control instance.
64     */
65    public function __construct( $plan = null, $connection_manager = null, $module_control = null ) {
66        $this->plan               = $plan ? $plan : new Plan();
67        $this->connection_manager = $connection_manager ? $connection_manager : new Connection_Manager( Package::SLUG );
68        $this->module_control     = $module_control ? $module_control : new Module_Control( $this->plan );
69        $this->plan->init_hooks();
70    }
71
72    /**
73     * Initialise hooks.
74     *
75     * We use the `config` package to initialize the search package, which ensures the package is
76     * only initialized once. However earlier versions of Jetpack would still forcely initialize the
77     * dashboard. As a result, there would be two `Search` submenus if we don't ensure the dashboard
78     * is initialized only once. So we use `$initialized` to ensure the class is only initialized once.
79     *
80     * Ref: https://github.com/Automattic/jetpack/pull/21888/files#diff-aae7d66951585fc55053a4d53b68552a41864d2c69aee900574ef4404b7ad5f7L42
81     */
82    public function init_hooks() {
83        if ( ! self::$initialized ) {
84            self::$initialized = true;
85            add_action( 'admin_menu', array( $this, 'add_wp_admin_submenu' ), $this->search_menu_priority );
86            // Check if the site plan changed and deactivate module accordingly.
87            add_action( 'current_screen', array( $this, 'check_plan_deactivate_search_module' ) );
88        }
89    }
90
91    /**
92     * The page to be added to submenu
93     */
94    public function add_wp_admin_submenu() {
95        // Jetpack of version <= 10.5 would register `jetpack-search` submenu with its built-in search module.
96        $this->remove_search_submenu_if_exists();
97
98        if ( $this->should_add_search_submenu() ) {
99            $page_suffix = Admin_Menu::add_menu(
100                /** "Search" is a product name, do not translate. */
101                'Jetpack Search',
102                'Search',
103                'manage_options',
104                'jetpack-search',
105                array( $this, 'render' )
106            );
107        } else {
108            // always add the page, but hide it from the menu.
109            $page_suffix = add_submenu_page(
110                '',
111                /** "Search" is a product name, do not translate. */
112                'Jetpack Search',
113                'Search',
114                'manage_options',
115                'jetpack-search',
116                array( $this, 'render' )
117            );
118        }
119
120        if ( $page_suffix ) {
121            add_action( 'load-' . $page_suffix, array( $this, 'admin_init' ) );
122        }
123    }
124
125    /**
126     * Override render funtion
127     */
128    public function render() {
129        ?>
130        <div id="jp-search-dashboard" class="jp-search-dashboard">
131            <div class="hide-if-js"><?php esc_html_e( 'Your Jetpack Search dashboard requires JavaScript to function properly.', 'jetpack-search-pkg' ); ?></div>
132        </div>
133        <?php
134    }
135
136    /**
137     * Test whether we should show Search menu.
138     *
139     * @return boolean Show search sub menu or not.
140     */
141    protected function should_add_search_submenu() {
142        /**
143         * The filter allows to ommit adding a submenu item for Jetpack Search.
144         *
145         * @since 0.11.2
146         *
147         * @param boolean $should_add_search_submenu Default value is true.
148         */
149        return apply_filters( 'jetpack_search_should_add_search_submenu', current_user_can( 'manage_options' ) );
150    }
151
152    /**
153     * Remove `jetpack-search` submenu page
154     */
155    protected function remove_search_submenu_if_exists() {
156        remove_submenu_page( 'jetpack', 'jetpack-search' );
157    }
158
159    /**
160     * Initialize the admin resources.
161     */
162    public function admin_init() {
163        add_action( 'admin_enqueue_scripts', array( $this, 'load_admin_scripts' ) );
164    }
165
166    /**
167     * Enqueue admin scripts.
168     */
169    public function load_admin_scripts() {
170        if ( $this->should_enqueue_tracking_script() ) {
171            // Required for Analytics.
172            Tracking::register_tracks_functions_scripts( true );
173        }
174
175        Assets::register_script(
176            'jp-search-dashboard',
177            '../../build/dashboard/jp-search-dashboard.js',
178            __FILE__,
179            array(
180                'in_footer'  => true,
181                'textdomain' => 'jetpack-search-pkg',
182            )
183        );
184        Assets::enqueue_script( 'jp-search-dashboard' );
185
186        // Add objects to be passed to the initial state of the app.
187        // Use wp_add_inline_script instead of wp_localize_script, see https://core.trac.wordpress.org/ticket/25280.
188        wp_add_inline_script(
189            'jp-search-dashboard',
190            ( new Initial_State() )->render(),
191            'before'
192        );
193
194        // Connection initial state.
195        Connection_Initial_State::render_script( 'jp-search-dashboard' );
196    }
197
198    /**
199     * Check if we should enqueue the tracking script.
200     */
201    protected function should_enqueue_tracking_script() {
202        return ! ( new Status() )->is_offline_mode() && $this->connection_manager->is_connected();
203    }
204
205    /**
206     * Deactivate search module if plan doesn't support search.
207     *
208     * @param \WP_Screen $current_screen Creent screen object.
209     */
210    public function check_plan_deactivate_search_module( $current_screen ) {
211        // Only run on Jetpack admin pages.
212        // The first two checks for current screen are cheap to run on every page.
213        if (
214            property_exists( $current_screen, 'base' ) &&
215            strpos( $current_screen->base, 'jetpack_page_' ) !== false &&
216            ( ! $this->plan->supports_search() || $this->plan->must_upgrade() )
217        ) {
218            $this->module_control->deactivate();
219        }
220    }
221}