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// Copyright 2008 The Closure Library Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS-IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/**
* @fileoverview Renderer for {@link goog.ui.Toolbar}s.
*
* @author attila@google.com (Attila Bodis)
*/
goog.provide('goog.ui.ToolbarRenderer');
goog.require('goog.dom.a11y.Role');
goog.require('goog.ui.Container.Orientation');
goog.require('goog.ui.ContainerRenderer');
goog.require('goog.ui.Separator');
goog.require('goog.ui.ToolbarSeparatorRenderer');
/**
* Default renderer for {@link goog.ui.Toolbar}s, based on {@link
* goog.ui.ContainerRenderer}.
* @constructor
* @extends {goog.ui.ContainerRenderer}
*/
goog.ui.ToolbarRenderer = function() {
goog.ui.ContainerRenderer.call(this);
};
goog.inherits(goog.ui.ToolbarRenderer, goog.ui.ContainerRenderer);
goog.addSingletonGetter(goog.ui.ToolbarRenderer);
/**
* Default CSS class to be applied to the root element of toolbars rendered
* by this renderer.
* @type {string}
*/
goog.ui.ToolbarRenderer.CSS_CLASS = goog.getCssName('goog-toolbar');
/**
* Returns the ARIA role to be applied to toolbar/menubar.
* @return {string} ARIA role.
* @override
*/
goog.ui.ToolbarRenderer.prototype.getAriaRole = function() {
return goog.dom.a11y.Role.TOOLBAR;
};
/**
* Inspects the element, and creates an instance of {@link goog.ui.Control} or
* an appropriate subclass best suited to decorate it. Overrides the superclass
* implementation by recognizing HR elements as separators.
* @param {Element} element Element to decorate.
* @return {goog.ui.Control?} A new control suitable to decorate the element
* (null if none).
* @override
*/
goog.ui.ToolbarRenderer.prototype.getDecoratorForChild = function(element) {
return element.tagName == 'HR' ?
new goog.ui.Separator(goog.ui.ToolbarSeparatorRenderer.getInstance()) :
goog.ui.ToolbarRenderer.superClass_.getDecoratorForChild.call(this,
element);
};
/**
* Returns the CSS class to be applied to the root element of containers
* rendered using this renderer.
* @return {string} Renderer-specific CSS class.
* @override
*/
goog.ui.ToolbarRenderer.prototype.getCssClass = function() {
return goog.ui.ToolbarRenderer.CSS_CLASS;
};
/**
* Returns the default orientation of containers rendered or decorated by this
* renderer. This implementation returns {@code HORIZONTAL}.
* @return {goog.ui.Container.Orientation} Default orientation for containers
* created or decorated by this renderer.
* @override
*/
goog.ui.ToolbarRenderer.prototype.getDefaultOrientation = function() {
return goog.ui.Container.Orientation.HORIZONTAL;
};
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