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-// Copyright 2010 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 An alternative imageless button renderer that uses CSS3 rather
- * than voodoo to render custom buttons with rounded corners and dimensionality
- * (via a subtle flat shadow on the bottom half of the button) without the use
- * of images.
- *
- * Based on the Custom Buttons 3.1 visual specification, see
- * http://go/custombuttons
- *
- * Tested and verified to work in Gecko 1.9.2+ and WebKit 528+.
- *
- * @author eae@google.com (Emil A Eklund)
- * @author slightlyoff@google.com (Alex Russell)
- * @author dalewis@google.com (Darren Lewis)
- * @see ../demos/css3menubutton.html
- */
-
-goog.provide('goog.ui.Css3MenuButtonRenderer');
-
-goog.require('goog.dom');
-goog.require('goog.dom.TagName');
-goog.require('goog.ui.ControlContent');
-goog.require('goog.ui.INLINE_BLOCK_CLASSNAME');
-goog.require('goog.ui.MenuButton');
-goog.require('goog.ui.MenuButtonRenderer');
-goog.require('goog.ui.registry');
-
-
-
-/**
- * Custom renderer for {@link goog.ui.MenuButton}s. Css3 buttons can contain
- * almost arbitrary HTML content, will flow like inline elements, but can be
- * styled like block-level elements.
- *
- * @constructor
- * @extends {goog.ui.MenuButtonRenderer}
- */
-goog.ui.Css3MenuButtonRenderer = function() {
- goog.ui.MenuButtonRenderer.call(this);
-};
-goog.inherits(goog.ui.Css3MenuButtonRenderer, goog.ui.MenuButtonRenderer);
-
-
-/**
- * The singleton instance of this renderer class.
- * @type {goog.ui.Css3MenuButtonRenderer?}
- * @private
- */
-goog.ui.Css3MenuButtonRenderer.instance_ = null;
-goog.addSingletonGetter(goog.ui.Css3MenuButtonRenderer);
-
-
-/**
- * Default CSS class to be applied to the root element of components rendered
- * by this renderer.
- * @type {string}
- */
-goog.ui.Css3MenuButtonRenderer.CSS_CLASS = goog.getCssName('goog-css3-button');
-
-
-/** @override */
-goog.ui.Css3MenuButtonRenderer.prototype.getContentElement = function(element) {
- if (element) {
- var captionElem = goog.dom.getElementsByTagNameAndClass(
- '*', goog.getCssName(this.getCssClass(), 'caption'), element)[0];
- return captionElem;
- }
- return null;
-};
-
-
-/**
- * Returns true if this renderer can decorate the element. Overrides
- * {@link goog.ui.MenuButtonRenderer#canDecorate} by returning true if the
- * element is a DIV, false otherwise.
- * @param {Element} element Element to decorate.
- * @return {boolean} Whether the renderer can decorate the element.
- * @override
- */
-goog.ui.Css3MenuButtonRenderer.prototype.canDecorate = function(element) {
- return element.tagName == goog.dom.TagName.DIV;
-};
-
-
-/**
- * Takes a text caption or existing DOM structure, and returns the content
- * wrapped in a pseudo-rounded-corner box. Creates the following DOM structure:
- * <div class="goog-inline-block goog-css3-button goog-css3-menu-button">
- * <div class="goog-css3-button-caption">Contents...</div>
- * <div class="goog-css3-button-dropdown"></div>
- * </div>
- *
- * Used by both {@link #createDom} and {@link #decorate}. To be overridden
- * by subclasses.
- * @param {goog.ui.ControlContent} content Text caption or DOM structure to wrap
- * in a box.
- * @param {goog.dom.DomHelper} dom DOM helper, used for document interaction.
- * @return {Element} Pseudo-rounded-corner box containing the content.
- * @override
- */
-goog.ui.Css3MenuButtonRenderer.prototype.createButton = function(content, dom) {
- var baseClass = this.getCssClass();
- var inlineBlock = goog.ui.INLINE_BLOCK_CLASSNAME + ' ';
- return dom.createDom('div', inlineBlock,
- dom.createDom('div', [goog.getCssName(baseClass, 'caption'),
- goog.getCssName('goog-inline-block')],
- content),
- dom.createDom('div', [goog.getCssName(baseClass, 'dropdown'),
- goog.getCssName('goog-inline-block')]));
-};
-
-
-/**
- * Returns the CSS class to be applied to the root element of components
- * rendered using this renderer.
- * @return {string} Renderer-specific CSS class.
- * @override
- */
-goog.ui.Css3MenuButtonRenderer.prototype.getCssClass = function() {
- return goog.ui.Css3MenuButtonRenderer.CSS_CLASS;
-};
-
-
-// Register a decorator factory function for goog.ui.Css3MenuButtonRenderer.
-// Since we're using goog-css3-button as the base class in order to get the
-// same styling as goog.ui.Css3ButtonRenderer, we need to be explicit about
-// giving goog-css3-menu-button here.
-goog.ui.registry.setDecoratorByClassName(
- goog.getCssName('goog-css3-menu-button'),
- function() {
- return new goog.ui.MenuButton(null, null,
- goog.ui.Css3MenuButtonRenderer.getInstance());
- });
-