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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.Button}s in App style.
- *
- * Based on ImagelessButtonRender. Uses even more CSS voodoo than the default
- * implementation to render custom buttons with fake 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
- *
- * @author eae@google.com (Emil A Eklund)
- */
-
-goog.provide('goog.ui.style.app.ButtonRenderer');
-
-goog.require('goog.dom.classes');
-goog.require('goog.ui.Button');
-goog.require('goog.ui.ControlContent');
-goog.require('goog.ui.CustomButtonRenderer');
-goog.require('goog.ui.INLINE_BLOCK_CLASSNAME');
-goog.require('goog.ui.registry');
-
-
-
-/**
- * Custom renderer for {@link goog.ui.Button}s. Imageless buttons can contain
- * almost arbitrary HTML content, will flow like inline elements, but can be
- * styled like block-level elements.
- *
- * @constructor
- * @extends {goog.ui.CustomButtonRenderer}
- */
-goog.ui.style.app.ButtonRenderer = function() {
- goog.ui.CustomButtonRenderer.call(this);
-};
-goog.inherits(goog.ui.style.app.ButtonRenderer, goog.ui.CustomButtonRenderer);
-goog.addSingletonGetter(goog.ui.style.app.ButtonRenderer);
-
-
-/**
- * Default CSS class to be applied to the root element of components rendered
- * by this renderer.
- * @type {string}
- */
-goog.ui.style.app.ButtonRenderer.CSS_CLASS = goog.getCssName('goog-button');
-
-
-/**
- * Array of arrays of CSS classes that we want composite classes added and
- * removed for in IE6 and lower as a workaround for lack of multi-class CSS
- * selector support.
- * @type {Array.<Array.<string>>}
- */
-goog.ui.style.app.ButtonRenderer.IE6_CLASS_COMBINATIONS = [];
-
-
-/**
- * Returns the button's contents wrapped in the following DOM structure:
- * <div class="goog-inline-block goog-button-base goog-button">
- * <div class="goog-inline-block goog-button-base-outer-box">
- * <div class="goog-button-base-inner-box">
- * <div class="goog-button-base-pos">
- * <div class="goog-button-base-top-shadow">&nbsp;</div>
- * <div class="goog-button-base-content">Contents...</div>
- * </div>
- * </div>
- * </div>
- * </div>
- * @override
- */
-goog.ui.style.app.ButtonRenderer.prototype.createDom;
-
-
-/** @override */
-goog.ui.style.app.ButtonRenderer.prototype.getContentElement = function(
- element) {
- return element && /** @type {Element} */(
- element.firstChild.firstChild.firstChild.lastChild);
-};
-
-
-/**
- * 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-button-base-outer-box">
- * <div class="goog-inline-block goog-button-base-inner-box">
- * <div class="goog-button-base-pos">
- * <div class="goog-button-base-top-shadow">&nbsp;</div>
- * <div class="goog-button-base-content">Contents...</div>
- * </div>
- * </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.style.app.ButtonRenderer.prototype.createButton = function(content,
- dom) {
- var baseClass = this.getStructuralCssClass();
- var inlineBlock = goog.ui.INLINE_BLOCK_CLASSNAME + ' ';
- return dom.createDom(
- 'div', inlineBlock + goog.getCssName(baseClass, 'outer-box'),
- dom.createDom(
- 'div', inlineBlock + goog.getCssName(baseClass, 'inner-box'),
- dom.createDom('div', goog.getCssName(baseClass, 'pos'),
- dom.createDom(
- 'div', goog.getCssName(baseClass, 'top-shadow'), '\u00A0'),
- dom.createDom(
- 'div', goog.getCssName(baseClass, 'content'), content))));
-};
-
-
-/**
- * Check if the button's element has a box structure.
- * @param {goog.ui.Button} button Button instance whose structure is being
- * checked.
- * @param {Element} element Element of the button.
- * @return {boolean} Whether the element has a box structure.
- * @protected
- * @override
- */
-goog.ui.style.app.ButtonRenderer.prototype.hasBoxStructure = function(
- button, element) {
-
- var baseClass = this.getStructuralCssClass();
- var outer = button.getDomHelper().getFirstElementChild(element);
- var outerClassName = goog.getCssName(baseClass, 'outer-box');
- if (outer && goog.dom.classes.has(outer, outerClassName)) {
-
- var inner = button.getDomHelper().getFirstElementChild(outer);
- var innerClassName = goog.getCssName(baseClass, 'inner-box');
- if (inner && goog.dom.classes.has(inner, innerClassName)) {
-
- var pos = button.getDomHelper().getFirstElementChild(inner);
- var posClassName = goog.getCssName(baseClass, 'pos');
- if (pos && goog.dom.classes.has(pos, posClassName)) {
-
- var shadow = button.getDomHelper().getFirstElementChild(pos);
- var shadowClassName = goog.getCssName(baseClass, 'top-shadow');
- if (shadow && goog.dom.classes.has(shadow, shadowClassName)) {
-
- var content = button.getDomHelper().getNextElementSibling(shadow);
- var contentClassName = goog.getCssName(baseClass, 'content');
- if (content && goog.dom.classes.has(content, contentClassName)) {
- // We have a proper box structure.
- return true;
- }
- }
- }
- }
- }
- return false;
-};
-
-
-/** @override */
-goog.ui.style.app.ButtonRenderer.prototype.getCssClass = function() {
- return goog.ui.style.app.ButtonRenderer.CSS_CLASS;
-};
-
-
-/** @override */
-goog.ui.style.app.ButtonRenderer.prototype.getStructuralCssClass = function() {
- // TODO(user): extract to a constant.
- return goog.getCssName('goog-button-base');
-};
-
-
-/** @override */
-goog.ui.style.app.ButtonRenderer.prototype.getIe6ClassCombinations =
- function() {
- return goog.ui.style.app.ButtonRenderer.IE6_CLASS_COMBINATIONS;
-};
-
-
-
-// Register a decorator factory function for goog.ui.style.app.ButtonRenderer.
-goog.ui.registry.setDecoratorByClassName(
- goog.ui.style.app.ButtonRenderer.CSS_CLASS,
- function() {
- return new goog.ui.Button(null,
- goog.ui.style.app.ButtonRenderer.getInstance());
- });