qbittorrent-webui-cjratliff.com/private/views/searchplugins.html

<style>
    #searchPluginsContainer {
        height: calc(100% - 20px);
        margin: 10px;
        overflow: auto;
    }

    #searchPluginsContainer button {
        padding: 2px;
    }

    #searchPluginsContainer span {
        display: block;
        margin-top: 10px;
    }

    #searchPluginsTable {
        width: 100%;
        height: calc(100% - 150px);
        -moz-height: calc(100% - 150px);
        -webkit-height: calc(100% - 150px);
    }

    #searchPluginsTable .dynamicTable {
        width: 100%;
    }

    #searchPluginsTableDiv {
        height: calc(100% - 26px);
        -moz-height: calc(100% - 26px);
        -webkit-height: calc(100% - 26px);
    }

    #dynamicTableFixedHeaderDiv {
        height: 26px;
    }

    #searchPlugins_content {
        height: 100%;
    }

</style>

<div id="searchPluginsContainer">
    <h2>Installed search plugins:</h2>

    <div id="searchPluginsTable">
        <div id="searchPluginsTableFixedHeaderDiv" class="dynamicTableFixedHeaderDiv">
            <table class="dynamicTable unselectable" style="position:relative;">
                <thead>
                    <tr class="dynamicTableHeader" id="searchPluginsTableFixedHeaderRow"></tr>
                </thead>
            </table>
        </div>
        <div id="searchPluginsTableDiv" class="dynamicTableDiv">
            <table class="dynamicTable unselectable">
                <thead>
                    <tr class="dynamicTableHeader"></tr>
                </thead>
                <tbody></tbody>
            </table>
        </div>
    </div>

    <span>Warning: Be sure to comply with your country's copyright laws when downloading torrents from any of these search engines.</span>
    <span style="font-style: italic;">You can get new search engine plugins here: <a href="http://plugins.qbittorrent.org" target="_blank">http://plugins.qbittorrent.org</a></span>
    <div style="width: 100%; margin-top: 10px;">
        <button style="width: 33%; line-height: 1.4em;" onclick="qBittorrent.SearchPlugins.installPlugin();">Install new plugin</button>
        <button style="width: 33%; line-height: 1.4em;" onclick="qBittorrent.SearchPlugins.checkForUpdates();">Check for updates</button>
        <button style="width: 32%; line-height: 1.4em;" onclick="qBittorrent.SearchPlugins.closeSearchWindow('searchPlugins');">Close</button>
    </div>
</div>

<ul id="searchPluginsTableMenu" class="contextMenu">
    <li><a href="#Enabled"><img src="images/checked-completed.svg" alt="Enabled" /> Enabled</a></li>
    <li class="separator"><a href="#Uninstall"><img src="images/list-remove.svg" alt="Uninstall" /> Uninstall</a></li>
</ul>

<script>
    'use strict';

    if (window.qBittorrent === undefined) {
        window.qBittorrent = {};
    }

    window.qBittorrent.SearchPlugins = (function() {
        const exports = function() {
            return {
                closeSearchWindow: closeSearchWindow,
                installPlugin: installPlugin,
                checkForUpdates: checkForUpdates,
                updateTable: updateTable
            };
        };

        let searchPluginsTable;
        let searchPluginsTableContextMenu;
        let prevOffsetLeft;
        let prevOffsetTop;

        const initSearchPlugins = function() {
            searchPluginsTable = new window.qBittorrent.DynamicTable.SearchPluginsTable();
            searchPluginsTableContextMenu = new window.qBittorrent.ContextMenu.SearchPluginsTableContextMenu({
                targets: '.searchPluginsTableRow',
                menu: 'searchPluginsTableMenu',
                actions: {
                    Enabled: enablePlugin,
                    Uninstall: uninstallPlugin
                },
                offsets: calculateContextMenuOffsets()
            });
            searchPluginsTable.setup('searchPluginsTableDiv', 'searchPluginsTableFixedHeaderDiv', searchPluginsTableContextMenu);
            updateTable();
        };

        const closeSearchWindow = function(id) {
            window.parent.MochaUI.closeWindow(window.parent.$(id));
        };

        const installPlugin = function(path) {
            new MochaUI.Window({
                id: 'installSearchPlugin',
                title: "Install plugin",
                loadMethod: 'xhr',
                contentURL: 'views/installsearchplugin.html',
                scrollbars: false,
                resizable: false,
                maximizable: false,
                paddingVertical: 0,
                paddingHorizontal: 0,
                width: 500,
                height: 120
            });
        };

        const uninstallPlugin = function() {
            const plugins = searchPluginsTable.selectedRowsIds().join('|');
            const url = new URI('api/v2/search/uninstallPlugin');
            new Request({
                url: url,
                noCache: true,
                method: 'post',
                data: {
                    names: plugins,
                }
            }).send();
        };

        const enablePlugin = function() {
            const plugins = searchPluginsTable.selectedRowsIds();
            let enable = true;
            if (plugins && plugins.length)
                enable = !window.qBittorrent.Search.getPlugin(plugins[0]).enabled;

            const url = new URI('api/v2/search/enablePlugin');
            new Request({
                url: url,
                noCache: true,
                method: 'post',
                data: {
                    names: plugins.join('|'),
                    enable: enable
                }
            }).send();
        };

        const checkForUpdates = function() {
            const url = new URI('api/v2/search/updatePlugins');
            new Request({
                url: url,
                noCache: true,
                method: 'post'
            }).send();
        };

        const calculateContextMenuOffsets = function() {
            prevOffsetLeft = document.getElementById("searchPlugins").getBoundingClientRect().left;
            prevOffsetTop = document.getElementById("searchPlugins").getBoundingClientRect().top;

            return {
                x: -(prevOffsetLeft + 20),
                y: -(prevOffsetTop + 2)
            };
        };

        const updateSearchPluginsTableContextMenuOffset = function() {
            // only re-calculate if window has moved
            if ((prevOffsetLeft !== document.getElementById("searchPlugins").getBoundingClientRect().left) || (prevOffsetTop !== document.getElementById("searchPlugins").getBoundingClientRect().top))
                searchPluginsTableContextMenu.options.offsets = calculateContextMenuOffsets();
        };

        const setupSearchPluginTableEvents = function(enable) {
            if (enable)
                $$(".searchPluginsTableRow").each(function(target) {
                    target.addEventListener('dblclick', enablePlugin, false);
                    target.addEventListener('contextmenu', updateSearchPluginsTableContextMenuOffset, true);
                });
            else
                $$(".searchPluginsTableRow").each(function(target) {
                    target.removeEventListener('dblclick', enablePlugin, false);
                    target.removeEventListener('contextmenu', updateSearchPluginsTableContextMenuOffset, true);
                });
        };

        const updateTable = function() {
            // clear event listeners
            setupSearchPluginTableEvents(false);

            const oldPlugins = Object.keys(searchPluginsTable.rows);
            // remove old rows from the table
            for (let i = 0; i < oldPlugins.length; ++i) {
                let found = false;
                for (let j = 0; j < window.qBittorrent.Search.searchPlugins.length; ++j) {
                    if (window.qBittorrent.Search.searchPlugins[j].name === oldPlugins[i]) {
                        found = true;
                        break;
                    }
                }
                if (!found)
                    searchPluginsTable.removeRow(oldPlugins[i]);
            }

            for (let i = 0; i < window.qBittorrent.Search.searchPlugins.length; ++i) {
                window.qBittorrent.Search.searchPlugins[i].rowId = window.qBittorrent.Search.searchPlugins[i].name;
                searchPluginsTable.updateRowData(window.qBittorrent.Search.searchPlugins[i]);
            }

            searchPluginsTable.updateTable();
            searchPluginsTable.altRow();

            // add event listeners
            setupSearchPluginTableEvents(true);
        };

        initSearchPlugins();

        return exports();
    })();

    Object.freeze(window.qBittorrent.SearchPlugins);
</script>