wide/static/js/tabs.js

160 lines
4.5 KiB
JavaScript

/*
* Copyright (c) 2015, B3log
*
* 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.
*/
var Tabs = function (obj) {
obj._$tabsPanel = $(obj.id + " > .tabs-panel");
obj._$tabs = $(obj.id + " > .tabs");
obj._stack = [];
this.obj = obj;
this.obj.STACKSIZE = 64;
this._init(obj);
// DOM 元素存在时,应顺序入栈
var _it = this;
$(obj.id + " > .tabs > div").each(function () {
var id = $(this).data("index");
if (obj._stack.length === _it.obj.STACKSIZE) {
obj._stack.splice(0, 1);
}
if (obj._stack[obj._stack.length - 1] !== id) {
_it.obj._stack.push(id);
}
});
};
$.extend(Tabs.prototype, {
_init: function (obj) {
var _that = this;
obj._$tabs.on("click", "div", function (event) {
var id = $(this).data("index");
_that.setCurrent(id);
if (typeof (obj.clickAfter) === "function") {
obj.clickAfter(id);
}
});
obj._$tabs.on("click", ".ico-close", function (event) {
var id = $(this).parent().data("index"),
isRemove = true;
if (typeof obj.removeBefore === 'function') {
isRemove = obj.removeBefore(id);
}
if (isRemove) {
_that.del(id);
}
event.stopPropagation();
});
},
_hasId: function (id) {
var $tabs = this.obj._$tabs;
if ($tabs.find("div[data-index=" + id + "]").length === 0) {
return false;
}
return true;
},
add: function (data) {
// 添加当前 tab
if (this.getCurrentId() === data.id) {
return false;
}
// 当前 tab 已经存在
if (this._hasId(data.id)) {
this.setCurrent(data.id);
return false;
}
var $tabsPanel = this.obj._$tabsPanel,
$tabs = this.obj._$tabs;
$tabs.append('<div data-index="' + data.id + '">'
+ data.title + ' <span class="ico-close font-ico"></span></div>');
$tabsPanel.append('<div data-index="' + data.id + '">' + data.content
+ '</div>');
this.setCurrent(data.id);
if (typeof data.after === 'function') {
data.after();
}
},
del: function (id) {
var $tabsPanel = this.obj._$tabsPanel,
$tabs = this.obj._$tabs,
stack = this.obj._stack,
prevId = null;
$tabs.children("div[data-index='" + id + "']").remove();
$tabsPanel.children("div[data-index='" + id + "']").remove();
// 移除堆栈中该 id
for (var i = 0; i < stack.length; i++) {
if (id === stack[i]) {
stack.splice(i, 1);
}
}
prevId = stack[stack.length - 1];
if (typeof this.obj.removeAfter === 'function') {
this.obj.removeAfter(id, prevId);
}
this.setCurrent(prevId);
},
getCurrentId: function () {
var $tabs = this.obj._$tabs;
return $tabs.children(".current").data("index");
},
setCurrent: function (id) {
if (!id) {
return false;
}
var $tabsPanel = this.obj._$tabsPanel,
$tabs = this.obj._$tabs;
var $currentTab = $tabs.children(".current");
if ($currentTab.data("index") === id) {
return false;
}
// tab 顺序入栈,如栈满则清除
var stack = this.obj._stack;
if (stack.length === this.obj.STACKSIZE) {
stack.splice(0, 1);
}
if (stack[stack.length - 1] !== id) {
this.obj._stack.push(id);
}
$tabs.children("div").removeClass("current");
$tabsPanel.children("div").hide();
$tabs.children("div[data-index='" + id + "']").addClass("current");
$tabsPanel.children("div[data-index='" + id + "']").show();
if (typeof this.obj.setAfter === 'function') {
this.obj.setAfter();
}
}
});