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// SpryTabbedPanelsKeyNavigationPlugin.js - version 0.1 - Spry Pre-Release 1.7 // // Copyright (c) 2010. Adobe Systems Incorporated. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are met: // // * Redistributions of source code must retain the above copyright notice, // this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above copyright notice, // this list of conditions and the following disclaimer in the documentation // and/or other materials provided with the distribution. // * Neither the name of Adobe Systems Incorporated nor the names of its // contributors may be used to endorse or promote products derived from this // software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE // POSSIBILITY OF SUCH DAMAGE.

(function() { // BeginSpryComponent

if (typeof Spry == "undefined" || !Spry.Widget || !Spry.Widget.TabbedPanels2) { alert("SpryTabbedPanelsKeyNavigationPlugin.js requires SpryTabbedPanels2.js!"); return; }

var KNP = Spry.Widget.TabbedPanels2.KeyNavigationPlugin = { initialize: function(tb) { tb.addObserver(this); },

KEY_UP: 38, KEY_DOWN: 40, KEY_LEFT: 37, KEY_RIGHT: 39, KEY_ENTER: 13, KEY_SPACE: 32,

handleOnButtonKeyDown: function(e, tb, btn) { var currentIndex = tb.panelSelector.elementToIndex(btn);

if (currentIndex != -1 ) { var key = e.keyCode; var nextIndex = -1; switch(key) { case KNP.KEY_LEFT: case KNP.KEY_UP: if (currentIndex > 0) nextIndex = currentIndex - 1; else nextIndex = tb.panelSelector.getButtonCount() - 1; break; case KNP.KEY_RIGHT: case KNP.KEY_DOWN: if (currentIndex < tb.panelSelector.getButtonCount() - 1) nextIndex = currentIndex + 1; else nextIndex = 0; break; case KNP.KEY_SPACE: case KNP.KEY_ENTER: nextIndex = currentIndex; break; }

if (nextIndex != -1) { tb.panelSelector.handleActivate(nextIndex); tb.panelSelector.focusButton(nextIndex); return Spry.Utils.cancelEvent(e); } } }, onPostAttachTabBehaviors: function(tb, evt) { if (tb.enableKeyboardNavigation && tb.panelSelector) { for (var i=0; i<tb.panelSelector.buttons.length; i++) { tb.panelSelector.buttons[i].psButton.addObserver({ onButtonKeyDown: function(btn, e) { KNP.handleOnButtonKeyDown(e.event, tb, e.element); } }); } } } };

// We want to add our plugin to the default configuration for TabbedPanels2 if it is included!

Spry.Widget.TabbedPanels2.config.plugIns.push(Spry.Widget.TabbedPanels2.KeyNavigationPlugin);

})(); // EndSpryComponent