source: trunk/library/tiny_mce/utils/mctabs.js @ 4829

/**
 * mctabs.js
 *
 * Copyright 2009, Moxiecode Systems AB
 * Released under LGPL License.
 *
 * License: http://tinymce.moxiecode.com/license
 * Contributing: http://tinymce.moxiecode.com/contributing
 */

function MCTabs() {
        this.settings = [];
        this.onChange = tinyMCEPopup.editor.windowManager.createInstance('tinymce.util.Dispatcher');
};

MCTabs.prototype.init = function(settings) {
        this.settings = settings;
};

MCTabs.prototype.getParam = function(name, default_value) {
        var value = null;

        value = (typeof(this.settings[name]) == "undefined") ? default_value : this.settings[name];

        // Fix bool values
        if (value == "true" || value == "false")
                return (value == "true");

        return value;
};

MCTabs.prototype.showTab =function(tab){
        tab.className = 'current';
        tab.setAttribute("aria-selected", true);
        tab.setAttribute("aria-expanded", true);
        tab.tabIndex = 0;
};

MCTabs.prototype.hideTab =function(tab){
        var t=this;

        tab.className = '';
        tab.setAttribute("aria-selected", false);
        tab.setAttribute("aria-expanded", false);
        tab.tabIndex = -1;
};

MCTabs.prototype.showPanel = function(panel) {
        panel.className = 'current'; 
        panel.setAttribute("aria-hidden", false);
};

MCTabs.prototype.hidePanel = function(panel) {
        panel.className = 'panel';
        panel.setAttribute("aria-hidden", true);
}; 

MCTabs.prototype.getPanelForTab = function(tabElm) {
        return tinyMCEPopup.dom.getAttrib(tabElm, "aria-controls");
};

MCTabs.prototype.displayTab = function(tab_id, panel_id, avoid_focus) {
        var panelElm, panelContainerElm, tabElm, tabContainerElm, selectionClass, nodes, i, t = this;

        tabElm = document.getElementById(tab_id);

        if (panel_id === undefined) {
                panel_id = t.getPanelForTab(tabElm);
        }

        panelElm= document.getElementById(panel_id);
        panelContainerElm = panelElm ? panelElm.parentNode : null;
        tabContainerElm = tabElm ? tabElm.parentNode : null;
        selectionClass = t.getParam('selection_class', 'current');

        if (tabElm && tabContainerElm) {
                nodes = tabContainerElm.childNodes;

                // Hide all other tabs
                for (i = 0; i < nodes.length; i++) {
                        if (nodes[i].nodeName == "LI") {
                                t.hideTab(nodes[i]);
                        }
                }

                // Show selected tab
                t.showTab(tabElm);
        }

        if (panelElm && panelContainerElm) {
                nodes = panelContainerElm.childNodes;

                // Hide all other panels
                for (i = 0; i < nodes.length; i++) {
                        if (nodes[i].nodeName == "DIV")
                                t.hidePanel(nodes[i]);
                }

                if (!avoid_focus) { 
                        tabElm.focus();
                }

                // Show selected panel
                t.showPanel(panelElm);
        }
};

MCTabs.prototype.getAnchor = function() {
        var pos, url = document.location.href;

        if ((pos = url.lastIndexOf('#')) != -1)
                return url.substring(pos + 1);

        return "";
};


//Global instance
var mcTabs = new MCTabs();

tinyMCEPopup.onInit.add(function() {
        var tinymce = tinyMCEPopup.getWin().tinymce, dom = tinyMCEPopup.dom, each = tinymce.each;

        each(dom.select('div.tabs'), function(tabContainerElm) {
                var keyNav;

                dom.setAttrib(tabContainerElm, "role", "tablist"); 

                var items = tinyMCEPopup.dom.select('li', tabContainerElm);
                var action = function(id) {
                        mcTabs.displayTab(id, mcTabs.getPanelForTab(id));
                        mcTabs.onChange.dispatch(id);
                };

                each(items, function(item) {
                        dom.setAttrib(item, 'role', 'tab');
                        dom.bind(item, 'click', function(evt) {
                                action(item.id);
                        });
                });

                dom.bind(dom.getRoot(), 'keydown', function(evt) {
                        if (evt.keyCode === 9 && evt.ctrlKey && !evt.altKey) { // Tab
                                keyNav.moveFocus(evt.shiftKey ? -1 : 1);
                                tinymce.dom.Event.cancel(evt);
                        }
                });

                each(dom.select('a', tabContainerElm), function(a) {
                        dom.setAttrib(a, 'tabindex', '-1');
                });

                keyNav = tinyMCEPopup.editor.windowManager.createInstance('tinymce.ui.KeyboardNavigation', {
                        root: tabContainerElm,
                        items: items,
                        onAction: action,
                        actOnFocus: true,
                        enableLeftRight: true,
                        enableUpDown: true
                }, tinyMCEPopup.dom);
        });
});