main.js
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
//-----------------------------------------------------------------------------
function main() {
// window.addEventListener("load", addClickToExpandImageHandlers, false);
}
//-----------------------------------------------------------------------------
function addClickToExpandImageHandlers() {
var elements = document.getElementsByTagName("img")
for (var i=0; i<elements.length; i++) {
var element = elements[i]
if (!hasClass(element, "expand-on-click")) continue
addClass(element, "width-transition")
element._original_width_ = element.width
element._contracted_ = true
element.width = element.width / 2
element.addEventListener("click", clickToExpand, false)
}
}
//-----------------------------------------------------------------------------
function clickToExpand(event) {
var element = this
if (element._contracted_) {
element.width = element._original_width_
}
else {
element.width = element._original_width_ / 2
}
element._contracted_ = ! element._contracted_
// if (hasClass(element, "contracted")) {
// removeClass(element, "contracted")
// }
//
// else {
// addClass(element, "contracted")
// }
}
//-----------------------------------------------------------------------------
function hasClass(element, className) {
var classNames = element.className.split(/\s+/)
for (var i=0; i<classNames.length; i++) {
if (className == classNames[i]) return true
}
return false
}
//-----------------------------------------------------------------------------
function addClass(element, className) {
if (hasClass(element, className)) return
element.className += " " + className
}
//-----------------------------------------------------------------------------
function removeClass(element, className) {
var classNames = element.className.split(/\s+/)
for (var i=0; i<classNames.length; i++) {
if (className == classNames[i]) {
classNames[i] = ""
}
}
element.className = classNames.join(" ")
}
//-----------------------------------------------------------------------------
main()