/*
 * (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(["text!spreadsheeteditor/main/app/template/ImageSettings.template", "jquery", "underscore", "backbone", "common/main/lib/component/Button", "common/main/lib/component/MetricSpinner", "common/main/lib/view/ImageFromUrlDialog"], function (menuTemplate, $, _, Backbone) {
    SSE.Views.ImageSettings = Backbone.View.extend(_.extend({
        el: "#id-image-settings",
        template: _.template(menuTemplate),
        events: {},
        options: {
            alias: "ImageSettings"
        },
        initialize: function () {
            var me = this;
            this._initSettings = true;
            this._nRatio = 1;
            this._state = {
                Width: 0,
                Height: 0,
                DisabledControls: false
            };
            this.spinners = [];
            this.lockedControls = [];
            this._locked = false;
            this._noApply = false;
            this.render();
            this.spnWidth = new Common.UI.MetricSpinner({
                el: $("#image-spin-width"),
                step: 0.1,
                width: 78,
                defaultUnit: "cm",
                value: "3 cm",
                maxValue: 55.88,
                minValue: 0
            });
            this.spinners.push(this.spnWidth);
            this.lockedControls.push(this.spnWidth);
            this.spnHeight = new Common.UI.MetricSpinner({
                el: $("#image-spin-height"),
                step: 0.1,
                width: 78,
                defaultUnit: "cm",
                value: "3 cm",
                maxValue: 55.88,
                minValue: 0
            });
            this.spinners.push(this.spnHeight);
            this.lockedControls.push(this.spnHeight);
            this.btnRatio = new Common.UI.Button({
                cls: "btn-toolbar btn-toolbar-default",
                iconCls: "advanced-btn-ratio",
                style: "margin-bottom: 1px;",
                enableToggle: true,
                hint: this.textKeepRatio
            });
            this.btnRatio.render($("#image-button-ratio"));
            this.lockedControls.push(this.btnRatio);
            var value = window.localStorage.getItem("sse-settings-imageratio");
            if (value === null || parseInt(value) == 1) {
                this.btnRatio.toggle(true);
            }
            this.btnRatio.on("click", _.bind(function (btn, e) {
                if (btn.pressed && this.spnHeight.getNumberValue() > 0) {
                    this._nRatio = this.spnWidth.getNumberValue() / this.spnHeight.getNumberValue();
                }
                window.localStorage.setItem("sse-settings-imageratio", (btn.pressed) ? 1 : 0);
            },
            this));
            this.btnOriginalSize = new Common.UI.Button({
                el: $("#image-button-original-size")
            });
            this.lockedControls.push(this.btnOriginalSize);
            this.btnInsertFromFile = new Common.UI.Button({
                el: $("#image-button-from-file")
            });
            this.lockedControls.push(this.btnInsertFromFile);
            this.btnInsertFromUrl = new Common.UI.Button({
                el: $("#image-button-from-url")
            });
            this.lockedControls.push(this.btnInsertFromUrl);
            this.spnWidth.on("change", _.bind(this.onWidthChange, this));
            this.spnHeight.on("change", _.bind(this.onHeightChange, this));
            this.btnOriginalSize.on("click", _.bind(this.setOriginalSize, this));
            this.btnInsertFromFile.on("click", _.bind(function (btn) {
                if (this.api) {
                    this.api.asc_changeImageFromFile();
                }
                Common.NotificationCenter.trigger("edit:complete", this);
            },
            this));
            this.btnInsertFromUrl.on("click", _.bind(this.insertFromUrl, this));
        },
        render: function () {
            var el = $(this.el);
            el.html(this.template({
                scope: this
            }));
        },
        setApi: function (api) {
            if (api == undefined) {
                return;
            }
            this.api = api;
            return this;
        },
        updateMetricUnit: function () {
            if (this.spinners) {
                for (var i = 0; i < this.spinners.length; i++) {
                    var spinner = this.spinners[i];
                    spinner.setDefaultUnit(Common.Utils.Metric.metricName[Common.Utils.Metric.getCurrentMetric()]);
                    spinner.setStep(Common.Utils.Metric.getCurrentMetric() == Common.Utils.Metric.c_MetricUnits.cm ? 0.1 : 1);
                }
            }
        },
        createDelayedElements: function () {
            this.updateMetricUnit();
        },
        ChangeSettings: function (props) {
            if (this._initSettings) {
                this.createDelayedElements();
                this._initSettings = false;
            }
            this.disableControls(this._locked);
            if (props) {
                var value = props.asc_getWidth();
                if (Math.abs(this._state.Width - value) > 0.001 || (this._state.Width === null || value === null) && (this._state.Width !== value)) {
                    this.spnWidth.setValue((value !== null) ? Common.Utils.Metric.fnRecalcFromMM(value) : "", true);
                    this._state.Width = value;
                }
                value = props.asc_getHeight();
                if (Math.abs(this._state.Height - value) > 0.001 || (this._state.Height === null || value === null) && (this._state.Height !== value)) {
                    this.spnHeight.setValue((value !== null) ? Common.Utils.Metric.fnRecalcFromMM(value) : "", true);
                    this._state.Height = value;
                }
                if (props.asc_getHeight() > 0) {
                    this._nRatio = props.asc_getWidth() / props.asc_getHeight();
                }
                this.btnOriginalSize.setDisabled(props.asc_getImageUrl() === null || props.asc_getImageUrl() === undefined || this._locked);
            }
        },
        onWidthChange: function (field, newValue, oldValue, eOpts) {
            var w = field.getNumberValue();
            var h = this.spnHeight.getNumberValue();
            if (this.btnRatio.pressed) {
                h = w / this._nRatio;
                if (h > this.spnHeight.options.maxValue) {
                    h = this.spnHeight.options.maxValue;
                    w = h * this._nRatio;
                    this.spnWidth.setValue(w, true);
                }
                this.spnHeight.setValue(h, true);
            }
            if (this.api) {
                var props = new Asc.asc_CImgProperty();
                props.asc_putWidth(Common.Utils.Metric.fnRecalcToMM(w));
                props.asc_putHeight(Common.Utils.Metric.fnRecalcToMM(h));
                this.api.asc_setGraphicObjectProps(props);
            }
            Common.NotificationCenter.trigger("edit:complete", this);
        },
        onHeightChange: function (field, newValue, oldValue, eOpts) {
            var h = field.getNumberValue(),
            w = this.spnWidth.getNumberValue();
            if (this.btnRatio.pressed) {
                w = h * this._nRatio;
                if (w > this.spnWidth.options.maxValue) {
                    w = this.spnWidth.options.maxValue;
                    h = w / this._nRatio;
                    this.spnHeight.setValue(h, true);
                }
                this.spnWidth.setValue(w, true);
            }
            if (this.api) {
                var props = new Asc.asc_CImgProperty();
                props.asc_putWidth(Common.Utils.Metric.fnRecalcToMM(w));
                props.asc_putHeight(Common.Utils.Metric.fnRecalcToMM(h));
                this.api.asc_setGraphicObjectProps(props);
            }
            Common.NotificationCenter.trigger("edit:complete", this);
        },
        setOriginalSize: function () {
            if (this.api) {
                var imgsize = this.api.asc_getOriginalImageSize();
                var w = imgsize.asc_getImageWidth();
                var h = imgsize.asc_getImageHeight();
                var properties = new Asc.asc_CImgProperty();
                properties.asc_putWidth(w);
                properties.asc_putHeight(h);
                this.api.asc_setGraphicObjectProps(properties);
                Common.NotificationCenter.trigger("edit:complete", this);
            }
        },
        insertFromUrl: function () {
            var me = this;
            (new Common.Views.ImageFromUrlDialog({
                handler: function (result, value) {
                    if (result == "ok") {
                        if (me.api) {
                            var checkUrl = value.replace(/ /g, "");
                            if (!_.isEmpty(checkUrl)) {
                                var props = new Asc.asc_CImgProperty();
                                props.asc_putImageUrl(checkUrl);
                                me.api.asc_setGraphicObjectProps(props);
                            }
                        }
                    }
                    Common.NotificationCenter.trigger("edit:complete", me);
                }
            })).show();
        },
        setLocked: function (locked) {
            this._locked = locked;
        },
        disableControls: function (disable) {
            if (this._state.DisabledControls !== disable) {
                this._state.DisabledControls = disable;
                _.each(this.lockedControls, function (item) {
                    item.setDisabled(disable);
                });
            }
        },
        textKeepRatio: "Constant Proportions",
        textSize: "Size",
        textWidth: "Width",
        textHeight: "Height",
        textOriginalSize: "Default Size",
        textInsert: "Insert Image",
        textFromUrl: "From URL",
        textFromFile: "From File"
    },
    SSE.Views.ImageSettings || {}));
});