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Diffstat (limited to 'contexts/data/lib/closure-library/closure/goog/ui/nativebuttonrenderer.js')
-rw-r--r-- | contexts/data/lib/closure-library/closure/goog/ui/nativebuttonrenderer.js | 207 |
1 files changed, 0 insertions, 207 deletions
diff --git a/contexts/data/lib/closure-library/closure/goog/ui/nativebuttonrenderer.js b/contexts/data/lib/closure-library/closure/goog/ui/nativebuttonrenderer.js deleted file mode 100644 index fb2229b..0000000 --- a/contexts/data/lib/closure-library/closure/goog/ui/nativebuttonrenderer.js +++ /dev/null @@ -1,207 +0,0 @@ -// 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 Native browser button renderer for {@link goog.ui.Button}s. - * - * @author attila@google.com (Attila Bodis) - */ - -goog.provide('goog.ui.NativeButtonRenderer'); - -goog.require('goog.dom.classes'); -goog.require('goog.events.EventType'); -goog.require('goog.ui.ButtonRenderer'); -goog.require('goog.ui.Component.State'); - - - -/** - * Renderer for {@link goog.ui.Button}s. Renders and decorates native HTML - * button elements. Since native HTML buttons have built-in support for many - * features, overrides many expensive (and redundant) superclass methods to - * be no-ops. - * @constructor - * @extends {goog.ui.ButtonRenderer} - */ -goog.ui.NativeButtonRenderer = function() { - goog.ui.ButtonRenderer.call(this); -}; -goog.inherits(goog.ui.NativeButtonRenderer, goog.ui.ButtonRenderer); -goog.addSingletonGetter(goog.ui.NativeButtonRenderer); - - -/** @override */ -goog.ui.NativeButtonRenderer.prototype.getAriaRole = function() { - // Native buttons don't need ARIA roles to be recognized by screen readers. - return undefined; -}; - - -/** - * Returns the button's contents wrapped in a native HTML button element. Sets - * the button's disabled attribute as needed. - * @param {goog.ui.Control} button Button to render. - * @return {Element} Root element for the button (a native HTML button element). - * @override - */ -goog.ui.NativeButtonRenderer.prototype.createDom = function(button) { - this.setUpNativeButton_(button); - return button.getDomHelper().createDom('button', { - 'class': this.getClassNames(button).join(' '), - 'disabled': !button.isEnabled(), - 'title': button.getTooltip() || '', - 'value': button.getValue() || '' - }, button.getCaption() || ''); -}; - - -/** - * Overrides {@link goog.ui.ButtonRenderer#canDecorate} by returning true only - * if the element is an HTML button. - * @param {Element} element Element to decorate. - * @return {boolean} Whether the renderer can decorate the element. - * @override - */ -goog.ui.NativeButtonRenderer.prototype.canDecorate = function(element) { - return element.tagName == 'BUTTON' || - (element.tagName == 'INPUT' && (element.type == 'button' || - element.type == 'submit' || element.type == 'reset')); -}; - - -/** @override */ -goog.ui.NativeButtonRenderer.prototype.decorate = function(button, element) { - this.setUpNativeButton_(button); - if (element.disabled) { - // Add the marker class for the DISABLED state before letting the superclass - // implementation decorate the element, so its state will be correct. - goog.dom.classes.add(element, - this.getClassForState(goog.ui.Component.State.DISABLED)); - } - return goog.ui.NativeButtonRenderer.superClass_.decorate.call(this, button, - element); -}; - - -/** - * Native buttons natively support BiDi and keyboard focus. - * @suppress {visibility} getHandler and performActionInternal - * @override - */ -goog.ui.NativeButtonRenderer.prototype.initializeDom = function(button) { - // WARNING: This is a hack, and it is only applicable to native buttons, - // which are special because they do natively what most goog.ui.Controls - // do programmatically. Do not use your renderer's initializeDom method - // to hook up event handlers! - button.getHandler().listen(button.getElement(), goog.events.EventType.CLICK, - button.performActionInternal); -}; - - -/** - * @override - * Native buttons don't support text selection. - */ -goog.ui.NativeButtonRenderer.prototype.setAllowTextSelection = - goog.nullFunction; - - -/** - * @override - * Native buttons natively support right-to-left rendering. - */ -goog.ui.NativeButtonRenderer.prototype.setRightToLeft = goog.nullFunction; - - -/** - * @override - * Native buttons are always focusable as long as they are enabled. - */ -goog.ui.NativeButtonRenderer.prototype.isFocusable = function(button) { - return button.isEnabled(); -}; - - -/** - * @override - * Native buttons natively support keyboard focus. - */ -goog.ui.NativeButtonRenderer.prototype.setFocusable = goog.nullFunction; - - -/** - * @override - * Native buttons also expose the DISABLED state in the HTML button's - * {@code disabled} attribute. - */ -goog.ui.NativeButtonRenderer.prototype.setState = function(button, state, - enable) { - goog.ui.NativeButtonRenderer.superClass_.setState.call(this, button, state, - enable); - var element = button.getElement(); - if (element && state == goog.ui.Component.State.DISABLED) { - element.disabled = enable; - } -}; - - -/** - * @override - * Native buttons store their value in the HTML button's {@code value} - * attribute. - */ -goog.ui.NativeButtonRenderer.prototype.getValue = function(element) { - // TODO(attila): Make this work on IE! This never worked... - // See http://www.fourmilab.ch/fourmilog/archives/2007-03/000824.html - // for a description of the problem. - return element.value; -}; - - -/** - * @override - * Native buttons also expose their value in the HTML button's {@code value} - * attribute. - */ -goog.ui.NativeButtonRenderer.prototype.setValue = function(element, value) { - if (element) { - // TODO(attila): Make this work on IE! This never worked... - // See http://www.fourmilab.ch/fourmilog/archives/2007-03/000824.html - // for a description of the problem. - element.value = value; - } -}; - - -/** - * @override - * Native buttons don't need ARIA states to support accessibility, so this is - * a no-op. - */ -goog.ui.NativeButtonRenderer.prototype.updateAriaState = goog.nullFunction; - - -/** - * Sets up the button control such that it doesn't waste time adding - * functionality that is already natively supported by native browser - * buttons. - * @param {goog.ui.Control} button Button control to configure. - * @private - */ -goog.ui.NativeButtonRenderer.prototype.setUpNativeButton_ = function(button) { - button.setHandleMouseEvents(false); - button.setAutoStates(goog.ui.Component.State.ALL, false); - button.setSupportedState(goog.ui.Component.State.FOCUSED, false); -}; |