/*
 * (c) Copyright Ascensio System SIA 2010-2015
 *
 * This program is a free software product. You can redistribute it and/or 
 * modify it under the terms of the GNU Affero General Public License (AGPL) 
 * version 3 as published by the Free Software Foundation. In accordance with 
 * Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect 
 * that Ascensio System SIA expressly excludes the warranty of non-infringement
 * of any third-party rights.
 *
 * This program is distributed WITHOUT ANY WARRANTY; without even the implied 
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE. For 
 * details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
 *
 * You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia,
 * EU, LV-1021.
 *
 * The  interactive user interfaces in modified source and object code versions
 * of the Program must display Appropriate Legal Notices, as required under 
 * Section 5 of the GNU AGPL version 3.
 *
 * Pursuant to Section 7(b) of the License you must retain the original Product
 * logo when distributing the program. Pursuant to Section 7(e) we decline to
 * grant you any rights under trademark law for use of our trademarks.
 *
 * All the Product's GUI elements, including illustrations and icon sets, as
 * well as technical writing content are licensed under the terms of the
 * Creative Commons Attribution-ShareAlike 4.0 International. See the License
 * terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
 *
 */
 define(["core", "spreadsheeteditor/main/app/view/CellEditor"], function (Viewport) {
    SSE.Controllers.CellEditor = Backbone.Controller.extend({
        views: ["CellEditor"],
        events: function () {
            return {
                "keyup input#ce-cell-name": _.bind(this.onCellName, this),
                "keyup textarea#ce-cell-content": _.bind(this.onKeyupCellEditor, this),
                "blur textarea#ce-cell-content": _.bind(this.onBlurCellEditor, this),
                "click button#ce-btn-expand": _.bind(this.expandEditorField, this),
                "click button#ce-func-label": _.bind(this.onInsertFunction, this)
            };
        },
        initialize: function () {
            this.addListeners({
                "CellEditor": {},
                "Viewport": {
                    "layout:resizedrag": _.bind(this.onLayoutResize, this)
                }
            });
        },
        setApi: function (api) {
            this.api = api;
            this.api.isCEditorFocused = false;
            this.api.asc_registerCallback("asc_onSelectionNameChanged", _.bind(this.onApiCellSelection, this));
            this.api.asc_registerCallback("asc_onEditCell", _.bind(this.onApiEditCell, this));
            this.api.asc_registerCallback("asc_onСoAuthoringDisconnect", _.bind(this.onApiDisconnect, this));
            Common.NotificationCenter.on("api:disconnect", _.bind(this.onApiDisconnect, this));
            Common.NotificationCenter.on("cells:range", _.bind(this.onCellsRange, this));
            return this;
        },
        setMode: function (mode) {
            this.mode = mode;
            this.editor.$btnfunc[this.mode.isEdit ? "removeClass" : "addClass"]("disabled");
        },
        onLaunch: function () {
            this.editor = this.createView("CellEditor", {
                el: "#cell-editing-box"
            }).render();
            this.bindViewEvents(this.editor, this.events);
            this.editor.$el.parent().find(".after").css({
                zIndex: "4"
            });
            var me = this;
            $("#ce-cell-content").keydown(function (e) {
                if (Common.UI.Keys.RETURN === e.keyCode || Common.UI.Keys.ESC === e.keyCode) {
                    me.api.asc_enableKeyEvents(true);
                }
            });
        },
        onApiEditCell: function (state) {
            if (state == c_oAscCellEditorState.editStart) {
                this.api.isCellEdited = true;
            } else {
                if (state == c_oAscCellEditorState.editEnd) {
                    this.api.isCellEdited = false;
                    this.api.isCEditorFocused = false;
                }
            }
        },
        onApiCellSelection: function (info) {
            this.editor.updateCellInfo(info);
        },
        onApiDisconnect: function () {
            this.mode.isEdit = false;
            var controller = this.getApplication().getController("FormulaDialog");
            if (controller) {
                controller.hideDialog();
            }
            if (!this.mode.isEdit) {
                $("#ce-func-label", this.editor.el).addClass("disabled");
            }
        },
        onCellsRange: function (status) {
            var isRangeSelection = (status != c_oAscSelectionDialogType.None);
            if (isRangeSelection) {
                this.editor.$cellname.attr("disabled", "disabled");
                this.editor.$btnfunc["addClass"]("disabled");
            } else {
                this.editor.$cellname.removeAttr("disabled");
                this.editor.$btnfunc["removeClass"]("disabled");
            }
        },
        onLayoutResize: function (o, r) {
            if (r == "cell:edit") {
                if (this.editor.$el.height() > 19) {
                    if (!this.editor.$btnexpand.hasClass("btn-collapse")) {
                        this.editor.$btnexpand["addClass"]("btn-collapse");
                    }
                } else {
                    this.editor.$btnexpand["removeClass"]("btn-collapse");
                }
            }
        },
        onCellName: function (e) {
            if (e.keyCode == Common.UI.Keys.RETURN) {
                var name = this.editor.$cellname.val();
                if (name && name.length) {
                    this.api.asc_findCell(name);
                }
                Common.NotificationCenter.trigger("edit:complete", this.editor);
            }
        },
        onBlurCellEditor: function () {
            if (this.api.isCEditorFocused == "clear") {
                this.api.isCEditorFocused = undefined;
            } else {
                if (this.api.isCellEdited) {
                    this.api.isCEditorFocused = true;
                }
            }
        },
        onKeyupCellEditor: function (e) {
            if (e.keyCode == Common.UI.Keys.RETURN && !e.altKey) {
                this.api.isCEditorFocused = "clear";
            }
        },
        expandEditorField: function () {
            if (this.editor.$el.height() > 19) {
                this.editor.keep_height = this.editor.$el.height();
                this.editor.$el.height(19);
                this.editor.$btnexpand["removeClass"]("btn-collapse");
            } else {
                this.editor.$el.height(this.editor.keep_height || 74);
                this.editor.$btnexpand["addClass"]("btn-collapse");
            }
            Common.NotificationCenter.trigger("layout:changed", "celleditor");
            Common.NotificationCenter.trigger("edit:complete", this.editor, {
                restorefocus: true
            });
        },
        onInsertFunction: function () {
            if (this.mode.isEdit && !this.editor.$btnfunc["hasClass"]("disabled")) {
                var controller = this.getApplication().getController("FormulaDialog");
                if (controller) {
                    $("#ce-func-label", this.editor.el).blur();
                    this.api.asc_enableKeyEvents(false);
                    controller.showDialog();
                }
            }
        }
    });
});