// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-

const { Clutter, Shell, St } = imports.gi;

const BoxPointer = imports.ui.boxpointer;

const Main = imports.ui.main;

const Params = imports.misc.params;

const PopupMenu = imports.ui.popupMenu;

var EntryMenu = class extends PopupMenu.PopupMenu {

    constructor(entry) {

        super(entry, 0, St.Side.TOP);

        this._entry = entry;

        this._clipboard = St.Clipboard.get_default();

        // Populate menu

        let item;

        item = new PopupMenu.PopupMenuItem(_("Copy"));

        item.connect('activate', this._onCopyActivated.bind(this));

        this.addMenuItem(item);

        this._copyItem = item;

        item = new PopupMenu.PopupMenuItem(_("Paste"));

        item.connect('activate', this._onPasteActivated.bind(this));

        this.addMenuItem(item);

        this._pasteItem = item;

        this._passwordItem = null;

        Main.uiGroup.add_actor(this.actor);

        this.actor.hide();

    }

    _makePasswordItem() {

        let item = new PopupMenu.PopupMenuItem('');

        item.connect('activate', this._onPasswordActivated.bind(this));

        this.addMenuItem(item);

        this._passwordItem = item;

    }

    get isPassword() {

        return this._passwordItem != null;

    }

    set isPassword(v) {

        if (v == this.isPassword)

            return;

        if (v) {

            this._makePasswordItem();

            this._entry.input_purpose = Clutter.InputContentPurpose.PASSWORD;

        } else {

            this._passwordItem.destroy();

            this._passwordItem = null;

            this._entry.input_purpose = Clutter.InputContentPurpose.NORMAL;

        }

    }

    open(animate) {

        this._updatePasteItem();

        this._updateCopyItem();

        if (this._passwordItem)

            this._updatePasswordItem();

        super.open(animate);

        this._entry.add_style_pseudo_class('focus');

        let direction = St.DirectionType.TAB_FORWARD;

        if (!this.actor.navigate_focus(null, direction, false))

            this.actor.grab_key_focus();

    }

    _updateCopyItem() {

        let selection = this._entry.clutter_text.get_selection();

        this._copyItem.setSensitive(!this._entry.clutter_text.password_char &&

                                    selection && selection != '');

    }

    _updatePasteItem() {

        this._clipboard.get_text(St.ClipboardType.CLIPBOARD,

            (clipboard, text) => {

                this._pasteItem.setSensitive(text && text != '');

            });

    }

    _updatePasswordItem() {

        let textHidden = (this._entry.clutter_text.password_char);

        if (textHidden)

            this._passwordItem.label.set_text(_("Show Text"));

        else

            this._passwordItem.label.set_text(_("Hide Text"));

    }

    _onCopyActivated() {

        let selection = this._entry.clutter_text.get_selection();

        this._clipboard.set_text(St.ClipboardType.CLIPBOARD, selection);

    }

    _onPasteActivated() {

        this._clipboard.get_text(St.ClipboardType.CLIPBOARD,

            (clipboard, text) => {

                if (!text)

                    return;

                this._entry.clutter_text.delete_selection();

                let pos = this._entry.clutter_text.get_cursor_position();

                this._entry.clutter_text.insert_text(text, pos);

            });

    }

    _onPasswordActivated() {

        let visible = !!(this._entry.clutter_text.password_char);

        this._entry.clutter_text.set_password_char(visible ? '' : '\u25cf');

    }

};

function _setMenuAlignment(entry, stageX) {

    let [success, entryX, entryY] = entry.transform_stage_point(stageX, 0);

    if (success)

        entry.menu.setSourceAlignment(entryX / entry.width);

};

function _onButtonPressEvent(actor, event, entry) {

    if (entry.menu.isOpen) {

        entry.menu.close(BoxPointer.PopupAnimation.FULL);

        return Clutter.EVENT_STOP;

    } else if (event.get_button() == 3) {

        let [stageX, stageY] = event.get_coords();

        _setMenuAlignment(entry, stageX);

        entry.menu.open(BoxPointer.PopupAnimation.FULL);

        return Clutter.EVENT_STOP;

    }

    return Clutter.EVENT_PROPAGATE;

};

function _onPopup(actor, entry) {

    let [success, textX, textY, lineHeight] = entry.clutter_text.position_to_coords(-1);

    if (success)

        entry.menu.setSourceAlignment(textX / entry.width);

    entry.menu.open(BoxPointer.PopupAnimation.FULL);

};

function addContextMenu(entry, params) {

    if (entry.menu)

        return;

    params = Params.parse (params, { isPassword: false, actionMode: Shell.ActionMode.POPUP });

    entry.menu = new EntryMenu(entry);

    entry.menu.isPassword = params.isPassword;

    entry._menuManager = new PopupMenu.PopupMenuManager({ actor: entry },

                                                        { actionMode: params.actionMode });

    entry._menuManager.addMenu(entry.menu);

    // Add an event handler to both the entry and its clutter_text; the former

    // so padding is included in the clickable area, the latter because the

    // event processing of ClutterText prevents event-bubbling.

    entry.clutter_text.connect('button-press-event', (actor, event) => {

        _onButtonPressEvent(actor, event, entry);

    });

    entry.connect('button-press-event', (actor, event) => {

        _onButtonPressEvent(actor, event, entry);

    });

    entry.connect('popup-menu', actor => { _onPopup(actor, entry); });

    entry.connect('destroy', () => {

        entry.menu.destroy();

        entry.menu = null;

        entry._menuManager = null;

    });

}