103 lines
3.2 KiB
JavaScript
103 lines
3.2 KiB
JavaScript
// Copyright 2008 The Closure Library Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS-IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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/**
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* @fileoverview A tab control, designed to be used in {@link goog.ui.TabBar}s.
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*
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* @author attila@google.com (Attila Bodis)
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* @see ../demos/tabbar.html
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*/
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goog.provide('goog.ui.Tab');
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goog.require('goog.ui.Component');
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goog.require('goog.ui.Control');
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goog.require('goog.ui.TabRenderer');
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goog.require('goog.ui.registry');
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/**
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* Tab control, designed to be hosted in a {@link goog.ui.TabBar}. The tab's
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* DOM may be different based on the configuration of the containing tab bar,
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* so tabs should only be rendered or decorated as children of a tab bar.
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* @param {goog.ui.ControlContent} content Text caption or DOM structure to
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* display as the tab's caption (if any).
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* @param {goog.ui.TabRenderer=} opt_renderer Optional renderer used to render
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* or decorate the tab.
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* @param {goog.dom.DomHelper=} opt_domHelper Optional DOM hepler, used for
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* document interaction.
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* @constructor
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* @extends {goog.ui.Control}
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*/
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goog.ui.Tab = function(content, opt_renderer, opt_domHelper) {
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goog.ui.Control.call(this, content,
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opt_renderer || goog.ui.TabRenderer.getInstance(), opt_domHelper);
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// Tabs support the SELECTED state.
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this.setSupportedState(goog.ui.Component.State.SELECTED, true);
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// Tabs must dispatch state transition events for the DISABLED and SELECTED
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// states in order for the tab bar to function properly.
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this.setDispatchTransitionEvents(
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goog.ui.Component.State.DISABLED | goog.ui.Component.State.SELECTED,
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true);
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};
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goog.inherits(goog.ui.Tab, goog.ui.Control);
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/**
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* Tooltip text for the tab, displayed on hover (if any).
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* @type {string|undefined}
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* @private
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*/
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goog.ui.Tab.prototype.tooltip_;
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/**
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* @return {string|undefined} Tab tooltip text (if any).
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*/
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goog.ui.Tab.prototype.getTooltip = function() {
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return this.tooltip_;
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};
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/**
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* Sets the tab tooltip text. If the tab has already been rendered, updates
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* its tooltip.
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* @param {string} tooltip New tooltip text.
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*/
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goog.ui.Tab.prototype.setTooltip = function(tooltip) {
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this.getRenderer().setTooltip(this.getElement(), tooltip);
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this.setTooltipInternal(tooltip);
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};
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/**
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* Sets the tab tooltip text. Considered protected; to be called only by the
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* renderer during element decoration.
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* @param {string} tooltip New tooltip text.
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* @protected
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*/
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goog.ui.Tab.prototype.setTooltipInternal = function(tooltip) {
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this.tooltip_ = tooltip;
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};
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// Register a decorator factory function for goog.ui.Tabs.
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goog.ui.registry.setDecoratorByClassName(goog.ui.TabRenderer.CSS_CLASS,
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function() {
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return new goog.ui.Tab(null);
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});
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