qBittorrent/src/webui/www/private/views/installsearchplugin.html

<style>
    #installSearchPluginContainer {
        margin: 10px;
    }

    #installSearchPluginContainer button {
        padding: 3px 20px;
    }

    #newPluginPath {
        width: 100%;
    }

</style>

<div id="installSearchPluginContainer">
    <label for="newPluginPath">QBT_TR(Plugin path:)QBT_TR[CONTEXT=PluginSourceDlg]</label>

    <div>
        <input type="text" id="newPluginPath" placeholder="QBT_TR(URL or local directory)QBT_TR[CONTEXT=PluginSourceDlg]" autocorrect="off" autocapitalize="none">
        <div style="margin-top: 10px; text-align: center;">
            <button type="button" id="newPluginCancel" onclick="window.qBittorrent.Client.closeWindow(document.getElementById('installSearchPlugin'));">QBT_TR(Cancel)QBT_TR[CONTEXT=PluginSourceDlg]</button>
            <button type="button" id="newPluginOk" onclick="qBittorrent.InstallSearchPlugin.newPluginOk();">QBT_TR(Ok)QBT_TR[CONTEXT=PluginSourceDlg]</button>
        </div>
    </div>
</div>

<script>
    "use strict";

    window.qBittorrent ??= {};
    window.qBittorrent.InstallSearchPlugin ??= (() => {
        const exports = () => {
            return {
                setup: setup,
                newPluginOk: newPluginOk
            };
        };

        const setup = () => {
            const windowEl = document.getElementById("installSearchPlugin");

            windowEl.addEventListener("keydown", (event) => {
                switch (event.key) {
                    case "Enter":
                        // accept enter key as a click
                        event.preventDefault();
                        event.stopPropagation();

                        switch (event.target.id) {
                            case "newPluginCancel":
                                window.qBittorrent.Client.closeWindow(windowEl);
                                break;
                            case "newPluginOk":
                            case "newPluginPath":
                                newPluginOk();
                                break;
                        }

                        break;
                }
            });

            $("newPluginPath").select();
        };

        const newPluginOk = () => {
            const path = $("newPluginPath").value.trim();
            if (path) {
                fetch("api/v2/search/installPlugin", {
                        method: "POST",
                        body: new URLSearchParams({
                            sources: path
                        })
                    })
                    .then((response) => {
                        if (!response.ok)
                            return;

                        window.qBittorrent.Client.closeWindow(document.getElementById("installSearchPlugin"));
                    });
            }
        };

        return exports();
    })();
    Object.freeze(window.qBittorrent.InstallSearchPlugin);

    window.qBittorrent.InstallSearchPlugin.setup();
</script>