/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */

/*
    This file is part of CoverflowAltTab.

    CoverflowAltTab is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    CoverflowAltTab is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with CoverflowAltTab.  If not, see <http://www.gnu.org/licenses/>.
*/

/* CoverflowAltTab::Keybinder
 *
 * Originally, created to be helper classes to handle the different keybinding APIs.
 */

import Shell from 'gi://Shell';
import * as Main from 'resource:///org/gnome/shell/ui/main.js';

import {__ABSTRACT_METHOD__} from './lib.js'

class AbstractKeybinder {
    enable() { __ABSTRACT_METHOD__(this, this.enable) }
    disable() { __ABSTRACT_METHOD__(this, this.disable) }
}

export const Keybinder330Api = class Keybinder330Api extends AbstractKeybinder {
    constructor(...args) {
        super(...args);

        this._startAppSwitcherBind = null;
    }

    enable(startAppSwitcherBind, platform) {
        let mode = Shell.ActionMode ? Shell.ActionMode : Shell.KeyBindingMode;

        this._startAppSwitcherBind = startAppSwitcherBind;

        platform.addSettingsChangedCallback(this._onSettingsChanged.bind(this));

        Main.wm.setCustomKeybindingHandler('switch-group', mode.NORMAL, startAppSwitcherBind);
        Main.wm.setCustomKeybindingHandler('switch-group-backward', mode.NORMAL, startAppSwitcherBind);
    }

    disable() {
        let mode = Shell.ActionMode ? Shell.ActionMode : Shell.KeyBindingMode;
        Main.wm.setCustomKeybindingHandler('switch-applications', mode.NORMAL, Main.wm._startSwitcher.bind(Main.wm));
        Main.wm.setCustomKeybindingHandler('switch-windows', mode.NORMAL, Main.wm._startSwitcher.bind(Main.wm));
        Main.wm.setCustomKeybindingHandler('switch-group', mode.NORMAL, Main.wm._startSwitcher.bind(Main.wm));
        Main.wm.setCustomKeybindingHandler('switch-applications-backward', mode.NORMAL, Main.wm._startSwitcher.bind(Main.wm));
        Main.wm.setCustomKeybindingHandler('switch-windows-backward', mode.NORMAL, Main.wm._startSwitcher.bind(Main.wm));
        Main.wm.setCustomKeybindingHandler('switch-group-backward', mode.NORMAL, Main.wm._startSwitcher.bind(Main.wm));
    }

    _onSettingsChanged(settings, key=null) {
        let mode = Shell.ActionMode ? Shell.ActionMode : Shell.KeyBindingMode;
        if (key == null || key == 'bind-to-switch-applications') {
            if (settings.get_boolean('bind-to-switch-applications')) {
                Main.wm.setCustomKeybindingHandler('switch-applications', mode.NORMAL, this._startAppSwitcherBind);
                Main.wm.setCustomKeybindingHandler('switch-applications-backward', mode.NORMAL, this._startAppSwitcherBind);
            } else {
                Main.wm.setCustomKeybindingHandler('switch-applications', mode.NORMAL, Main.wm._startSwitcher.bind(Main.wm));
                Main.wm.setCustomKeybindingHandler('switch-applications-backward', mode.NORMAL, Main.wm._startSwitcher.bind(Main.wm));
            }
        }
        if (key == null || key == 'bind-to-switch-windows') {
            if (settings.get_boolean('bind-to-switch-windows')) {
                Main.wm.setCustomKeybindingHandler('switch-windows', mode.NORMAL, this._startAppSwitcherBind);
                Main.wm.setCustomKeybindingHandler('switch-windows-backward', mode.NORMAL, this._startAppSwitcherBind);
            } else {
                Main.wm.setCustomKeybindingHandler('switch-windows', mode.NORMAL, Main.wm._startSwitcher.bind(Main.wm));
                Main.wm.setCustomKeybindingHandler('switch-windows-backward', mode.NORMAL, Main.wm._startSwitcher.bind(Main.wm));
            }
        }
    }
}