devextreme/ui/grid_core/ui.grid_core.header_panel.js

HTML5 JavaScript Component Suite for Responsive Web Development

/**
 * DevExtreme (ui/grid_core/ui.grid_core.header_panel.js)
 * Version: 18.1.3
 * Build date: Tue May 15 2018
 *
 * Copyright (c) 2012 - 2018 Developer Express Inc. ALL RIGHTS RESERVED
 * Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
 */
"use strict";
var $ = require("../../core/renderer"),
    Toolbar = require("../toolbar"),
    columnsView = require("./ui.grid_core.columns_view"),
    noop = require("../../core/utils/common").noop,
    isDefined = require("../../core/utils/type").isDefined,
    domUtils = require("../../core/utils/dom");
require("../drop_down_menu");
var HEADER_PANEL_CLASS = "header-panel",
    TOOLBAR_BUTTON_CLASS = "toolbar-button";
var HeaderPanel = columnsView.ColumnsView.inherit({
    _getToolbarItems: function() {
        return []
    },
    _getButtonContainer: function() {
        return $("<div>").addClass(this.addWidgetPrefix(TOOLBAR_BUTTON_CLASS))
    },
    _getToolbarButtonClass: function(specificClass) {
        var secondClass = specificClass ? " " + specificClass : "";
        return this.addWidgetPrefix(TOOLBAR_BUTTON_CLASS) + secondClass
    },
    _getToolbarOptions: function() {
        var toolbarItems, options = {
            toolbarOptions: {
                items: this._getToolbarItems(),
                onItemRendered: function(e) {
                    var itemRenderedCallback = e.itemData.onItemRendered;
                    if (itemRenderedCallback) {
                        itemRenderedCallback(e)
                    }
                }
            }
        };
        this.executeAction("onToolbarPreparing", options);
        if (options.toolbarOptions && !isDefined(options.toolbarOptions.visible)) {
            toolbarItems = options.toolbarOptions.items;
            options.toolbarOptions.visible = !!(toolbarItems && toolbarItems.length)
        }
        return options.toolbarOptions
    },
    _renderCore: function() {
        if (!this._toolbar) {
            this.element().addClass(this.addWidgetPrefix(HEADER_PANEL_CLASS));
            this._toolbar = this._createComponent($("<div>").appendTo(this.element()), Toolbar, this._toolbarOptions)
        } else {
            this._toolbar.option(this._toolbarOptions)
        }
    },
    _columnOptionChanged: noop,
    _handleDataChanged: function() {
        if (this._requireReady) {
            this.render()
        }
    },
    init: function() {
        this.callBase();
        this.createAction("onToolbarPreparing", {
            excludeValidators: ["designMode", "disabled", "readOnly"]
        })
    },
    render: function() {
        this._toolbarOptions = this._getToolbarOptions();
        this.callBase.apply(this, arguments)
    },
    setToolbarItemDisabled: function(name, optionValue) {
        var toolbarInstance = this._toolbar;
        if (toolbarInstance) {
            var items = toolbarInstance.option("items") || [],
                itemIndex = items.indexOf(items.filter(function(item) {
                    return item.name === name
                })[0]);
            if (itemIndex >= 0) {
                var itemOptionPrefix = "items[" + itemIndex + "]";
                if (toolbarInstance.option(itemOptionPrefix + ".options")) {
                    toolbarInstance.option(itemOptionPrefix + ".options.disabled", optionValue)
                } else {
                    toolbarInstance.option(itemOptionPrefix + ".disabled", optionValue)
                }
            }
        }
    },
    updateToolbarDimensions: function() {
        if (this._toolbar) {
            domUtils.triggerResizeEvent(this.getHeaderPanel())
        }
    },
    getHeaderPanel: function() {
        return this.element()
    },
    getHeight: function() {
        return this.getElementHeight()
    },
    optionChanged: function(args) {
        if ("onToolbarPreparing" === args.name) {
            this._invalidate();
            args.handled = true
        }
        this.callBase(args)
    },
    isVisible: function() {
        return this._toolbarOptions && this._toolbarOptions.visible
    },
    allowDragging: noop
});
module.exports = {
    defaultOptions: function() {
        return {}
    },
    views: {
        headerPanel: HeaderPanel
    },
    extenders: {
        controllers: {
            resizing: {
                _updateDimensionsCore: function() {
                    this.callBase.apply(this, arguments);
                    this.getView("headerPanel").updateToolbarDimensions()
                }
            }
        }
    }
};