wordpress知更鸟主题全站pjax无刷新
wordpress知更鸟主题全站pjax无刷新
前言
首先说明一下,不是专业的,很菜,全站pjax会弄,但是会有很多问题,有兴趣的小伙伴可以折腾完善一下哈!
教程
第一步:在header.php文件中body前引用jquery.js文件一般模版都有无需引用,如果没有自己引用一下,然后在引用jquery.pjax.js(这里我直接提供代码)注意:jquery.js需要放在jquery.pjax.js前面
- // jquery.pjax.js
- // copyright chris wanstrath
- // https://github.com/defunkt/jquery-pjax
- (function($){
- // When called on a container with a selector, fetches the href with
- // ajax into the container or with the data-pjax attribute on the link
- // itself.
- //
- // Tries to make sure the back button and ctrl+click work the way
- // you'd expect.
- //
- // Exported as $.fn.pjax
- //
- // Accepts a jQuery ajax options object that may include these
- // pjax specific options:
- //
- //
- // container - Where to stick the response body. Usually a String selector.
- // $(container).html(xhr.responseBody)
- // (default: current jquery context)
- // push - Whether to pushState the URL. Defaults to true (of course).
- // replace - Want to use replaceState instead? That's cool.
- //
- // For convenience the second parameter can be either the container or
- // the options object.
- //
- // Returns the jQuery object
- function fnPjax(selector, container, options) {
- var context = this
- return this.on('click.pjax', selector, function(event) {
- var opts = $.extend({}, optionsFor(container, options))
- if (!opts.container)
- opts.container = $(this).attr('data-pjax') || context
- handleClick(event, opts)
- })
- }
- // Public: pjax on click handler
- //
- // Exported as $.pjax.click.
- //
- // event - "click" jQuery.Event
- // options - pjax options
- //
- // Examples
- //
- // $(document).on('click', 'a', $.pjax.click)
- // // is the same as
- // $(document).pjax('a')
- //
- // $(document).on('click', 'a', function(event) {
- // var container = $(this).closest('[data-pjax-container]')
- // $.pjax.click(event, container)
- // })
- //
- // Returns nothing.
- function handleClick(event, container, options) {
- options = optionsFor(container, options)
- var link = event.currentTarget
- if (link.tagName.toUpperCase() !== 'A')
- throw "$.fn.pjax or $.pjax.click requires an anchor element"
- // Middle click, cmd click, and ctrl click should open
- // links in a new tab as normal.
- if ( event.which > 1 || event.metaKey || event.ctrlKey || event.shiftKey || event.altKey )
- return
- // Ignore cross origin links
- if ( location.protocol !== link.protocol || location.hostname !== link.hostname )
- return
- // Ignore anchors on the same page
- if (link.hash && link.href.replace(link.hash, '') ===
- location.href.replace(location.hash, ''))
- return
- // Ignore empty anchor "foo.html#"
- if (link.href === location.href + '#')
- return
- // Ignore event with default prevented
- if (event.isDefaultPrevented())
- return
- var defaults = {
- url: link.href,
- container: $(link).attr('data-pjax'),
- target: link
- }
- var opts = $.extend({}, defaults, options)
- var clickEvent = $.Event('pjax:click')
- $(link).trigger(clickEvent, [opts])
- if (!clickEvent.isDefaultPrevented()) {
- pjax(opts)
- event.preventDefault()
- $(link).trigger('pjax:clicked', [opts])
- }
- }
- // Public: pjax on form submit handler
- //
- // Exported as $.pjax.submit
- //
- // event - "click" jQuery.Event
- // options - pjax options
- //
- // Examples
- //
- // $(document).on('submit', 'form', function(event) {
- // var container = $(this).closest('[data-pjax-container]')
- // $.pjax.submit(event, container)
- // })
- //
- // Returns nothing.
- function handleSubmit(event, container, options) {
- options = optionsFor(container, options)
- var form = event.currentTarget
- if (form.tagName.toUpperCase() !== 'FORM')
- throw "$.pjax.submit requires a form element"
- var defaults = {
- type: form.method.toUpperCase(),
- url: form.action,
- data: $(form).serializeArray(),
- container: $(form).attr('data-pjax'),
- target: form
- }
- pjax($.extend({}, defaults, options))
- event.preventDefault()
- }
- // Loads a URL with ajax, puts the response body inside a container,
- // then pushState()'s the loaded URL.
- //
- // Works just like $.ajax in that it accepts a jQuery ajax
- // settings object (with keys like url, type, data, etc).
- //
- // Accepts these extra keys:
- //
- // container - Where to stick the response body.
- // $(container).html(xhr.responseBody)
- // push - Whether to pushState the URL. Defaults to true (of course).
- // replace - Want to use replaceState instead? That's cool.
- //
- // Use it just like $.ajax:
- //
- // var xhr = $.pjax({ url: this.href, container: '#main' })
- // console.log( xhr.readyState )
- //
- // Returns whatever $.ajax returns.
- function pjax(options) {
- options = $.extend(true, {}, $.ajaxSettings, pjax.defaults, options)
- if ($.isFunction(options.url)) {
- options.url = options.url()
- }
- var target = options.target
- var hash = parseURL(options.url).hash
- var context = options.context = findContainerFor(options.container)
- // We want the browser to maintain two separate internal caches: one
- // for pjax'd partial page loads and one for normal page loads.
- // Without adding this secret parameter, some browsers will often
- // confuse the two.
- if (!options.data) options.data = {}
- options.data._pjax = context.selector
- function fire(type, args) {
- var event = $.Event(type, { relatedTarget: target })
- context.trigger(event, args)
- return !event.isDefaultPrevented()
- }
- var timeoutTimer
- options.beforeSend = function(xhr, settings) {
- // No timeout for non-GET requests
- // Its not safe to request the resource again with a fallback method.
- if (settings.type !== 'GET') {
- settings.timeout = 0
- }
- xhr.setRequestHeader('X-PJAX', 'true')
- xhr.setRequestHeader('X-PJAX-Container', context.selector)
- if (!fire('pjax:beforeSend', [xhr, settings]))
- return false
- if (settings.timeout > 0) {
- timeoutTimer = setTimeout(function() {
- if (fire('pjax:timeout', [xhr, options]))
- xhr.abort('timeout')
- }, settings.timeout)
- // Clear timeout setting so jquerys internal timeout isn't invoked
- settings.timeout = 0
- }
- options.requestUrl = parseURL(settings.url).href
- }
- options.complete = function(xhr, textStatus) {
- if (timeoutTimer)
- clearTimeout(timeoutTimer)
- fire('pjax:complete', [xhr, textStatus, options])
- fire('pjax:end', [xhr, options])
- }
- options.error = function(xhr, textStatus, errorThrown) {
- var container = extractContainer("", xhr, options)
- var allowed = fire('pjax:error', [xhr, textStatus, errorThrown, options])
- if (options.type == 'GET' && textStatus !== 'abort' && allowed) {
- locationReplace(container.url)
- }
- }
- options.success = function(data, status, xhr) {
- // If $.pjax.defaults.version is a function, invoke it first.
- // Otherwise it can be a static string.
- var currentVersion = (typeof $.pjax.defaults.version === 'function') ?
- $.pjax.defaults.version() :
- $.pjax.defaults.version
- var latestVersion = xhr.getResponseHeader('X-PJAX-Version')
- var container = extractContainer(data, xhr, options)
- // If there is a layout version mismatch, hard load the new url
- if (currentVersion && latestVersion && currentVersion !== latestVersion) {
- locationReplace(container.url)
- return
- }
- // If the new response is missing a body, hard load the page
- if (!container.contents) {
- locationReplace(container.url)
- return
- }
- pjax.state = {
- id: options.id || uniqueId(),
- url: container.url,
- title: container.title,
- container: context.selector,
- fragment: options.fragment,
- timeout: options.timeout
- }
- if (options.push || options.replace) {
- window.history.replaceState(pjax.state, container.title, container.url)
- }
- // Clear out any focused controls before inserting new page contents.
- try {
- document.activeElement.blur()
- } catch (e) { }
- if (container.title) document.title = container.title
- fire('pjax:beforeReplace', [container.contents, options])
- context.html(container.contents)
- // FF bug: Won't autofocus fields that are inserted via JS.
- // This behavior is incorrect. So if theres no current focus, autofocus
- // the last field.
- //
- // http://www.w3.org/html/wg/drafts/html/master/forms.html
- var autofocusEl = context.find('input[autofocus], textarea[autofocus]').last()[0]
- if (autofocusEl && document.activeElement !== autofocusEl) {
- autofocusEl.focus();
- }
- executeScriptTags(container.scripts)
- // Scroll to top by default
- if (typeof options.scrollTo === 'number')
- $(window).scrollTop(options.scrollTo)
- // If the URL has a hash in it, make sure the browser
- // knows to navigate to the hash.
- if ( hash !== '' ) {
- // Avoid using simple hash set here. Will add another history
- // entry. Replace the url with replaceState and scroll to target
- // by hand.
- //
- // window.location.hash = hash
- var url = parseURL(container.url)
- url.hash = hash
- pjax.state.url = url.href
- window.history.replaceState(pjax.state, container.title, url.href)
- var target = $(url.hash)
- if (target.length) $(window).scrollTop(target.offset().top)
- }
- fire('pjax:success', [data, status, xhr, options])
- }
- // Initialize pjax.state for the initial page load. Assume we're
- // using the container and options of the link we're loading for the
- // back button to the initial page. This ensures good back button
- // behavior.
- if (!pjax.state) {
- pjax.state = {
- id: uniqueId(),
- url: window.location.href,
- title: document.title,
- container: context.selector,
- fragment: options.fragment,
- timeout: options.timeout
- }
- window.history.replaceState(pjax.state, document.title)
- }
- // Cancel the current request if we're already pjaxing
- var xhr = pjax.xhr
- if ( xhr && xhr.readyState < 4) {
- xhr.onreadystatechange = $.noop
- xhr.abort()
- }
- pjax.options = options
- var xhr = pjax.xhr = $.ajax(options)
- if (xhr.readyState > 0) {
- if (options.push && !options.replace) {
- // Cache current container element before replacing it
- cachePush(pjax.state.id, context.clone().contents())
- window.history.pushState(null, "", stripPjaxParam(options.requestUrl))
- }
- fire('pjax:start', [xhr, options])
- fire('pjax:send', [xhr, options])
- }
- return pjax.xhr
- }
- // Public: Reload current page with pjax.
- //
- // Returns whatever $.pjax returns.
- function pjaxReload(container, options) {
- var defaults = {
- url: window.location.href,
- push: false,
- replace: true,
- scrollTo: false
- }
- return pjax($.extend(defaults, optionsFor(container, options)))
- }
- // Internal: Hard replace current state with url.
- //
- // Work for around WebKit
- // https://bugs.webkit.org/show_bug.cgi?id=93506
- //
- // Returns nothing.
- function locationReplace(url) {
- window.history.replaceState(null, "", "#")
- window.location.replace(url)
- }
- var initialPop = true
- var initialURL = window.location.href
- var initialState = window.history.state
- // Initialize $.pjax.state if possible
- // Happens when reloading a page and coming forward from a different
- // session history.
- if (initialState && initialState.container) {
- pjax.state = initialState
- }
- // Non-webkit browsers don't fire an initial popstate event
- if ('state' in window.history) {
- initialPop = false
- }
- // popstate handler takes care of the back and forward buttons
- //
- // You probably shouldn't use pjax on pages with other pushState
- // stuff yet.
- function onPjaxPopstate(event) {
- var state = event.state
- if (state && state.container) {
- // When coming forward from a separate history session, will get an
- // initial pop with a state we are already at. Skip reloading the current
- // page.
- if (initialPop && initialURL == state.url) return
- // If popping back to the same state, just skip.
- // Could be clicking back from hashchange rather than a pushState.
- if (pjax.state && pjax.state.id === state.id) return
- var container = $(state.container)
- if (container.length) {
- var direction, contents = cacheMapping[state.id]
- if (pjax.state) {
- // Since state ids always increase, we can deduce the history
- // direction from the previous state.
- direction = pjax.state.id < state.id ? 'forward' : 'back'
- // Cache current container before replacement and inform the
- // cache which direction the history shifted.
- cachePop(direction, pjax.state.id, container.clone().contents())
- }
- var popstateEvent = $.Event('pjax:popstate', {
- state: state,
- direction: direction
- })
- container.trigger(popstateEvent)
- var options = {
- id: state.id,
- url: state.url,
- container: container,
- push: false,
- fragment: state.fragment,
- timeout: state.timeout,
- scrollTo: false
- }
- if (contents) {
- container.trigger('pjax:start', [null, options])
- if (state.title) document.title = state.title
- container.trigger('pjax:beforeReplace', [contents, options])
- container.html(contents)
- pjax.state = state
- container.trigger('pjax:end', [null, options])
- } else {
- pjax(options)
- }
- // Force reflow/relayout before the browser tries to restore the
- // scroll position.
- container[0].offsetHeight
- } else {
- locationReplace(location.href)
- }
- }
- initialPop = false
- }
- // Fallback version of main pjax function for browsers that don't
- // support pushState.
- //
- // Returns nothing since it retriggers a hard form submission.
- function fallbackPjax(options) {
- var url = $.isFunction(options.url) ? options.url() : options.url,
- method = options.type ? options.type.toUpperCase() : 'GET'
- var form = $('<form>', {
- method: method === 'GET' ? 'GET' : 'POST',
- action: url,
- style: 'display:none'
- })
- if (method !== 'GET' && method !== 'POST') {
- form.append($('<input>', {
- type: 'hidden',
- name: '_method',
- value: method.toLowerCase()
- }))
- }
- var data = options.data
- if (typeof data === 'string') {
- $.each(data.split('&'), function(index, value) {
- var pair = value.split('=')
- form.append($('<input>', {type: 'hidden', name: pair[0], value: pair[1]}))
- })
- } else if (typeof data === 'object') {
- for (key in data)
- form.append($('<input>', {type: 'hidden', name: key, value: data[key]}))
- }
- $(document.body).append(form)
- form.submit()
- }
- // Internal: Generate unique id for state object.
- //
- // Use a timestamp instead of a counter since ids should still be
- // unique across page loads.
- //
- // Returns Number.
- function uniqueId() {
- return (new Date).getTime()
- }
- // Internal: Strips _pjax param from url
- //
- // url - String
- //
- // Returns String.
- function stripPjaxParam(url) {
- return url
- .replace(/\?_pjax=[^&]+&?/, '?')
- .replace(/_pjax=[^&]+&?/, '')
- .replace(/[\?&]$/, '')
- }
- // Internal: Parse URL components and returns a Locationish object.
- //
- // url - String URL
- //
- // Returns HTMLAnchorElement that acts like Location.
- function parseURL(url) {
- var a = document.createElement('a')
- a.href = url
- return a
- }
- // Internal: Build options Object for arguments.
- //
- // For convenience the first parameter can be either the container or
- // the options object.
- //
- // Examples
- //
- // optionsFor('#container')
- // // => {container: '#container'}
- //
- // optionsFor('#container', {push: true})
- // // => {container: '#container', push: true}
- //
- // optionsFor({container: '#container', push: true})
- // // => {container: '#container', push: true}
- //
- // Returns options Object.
- function optionsFor(container, options) {
- // Both container and options
- if ( container && options )
- options.container = container
- // First argument is options Object
- else if ( $.isPlainObject(container) )
- options = container
- // Only container
- else
- options = {container: container}
- // Find and validate container
- if (options.container)
- options.container = findContainerFor(options.container)
- return options
- }
- // Internal: Find container element for a variety of inputs.
- //
- // Because we can't persist elements using the history API, we must be
- // able to find a String selector that will consistently find the Element.
- //
- // container - A selector String, jQuery object, or DOM Element.
- //
- // Returns a jQuery object whose context is `document` and has a selector.
- function findContainerFor(container) {
- container = $(container)
- if ( !container.length ) {
- throw "no pjax container for " + container.selector
- } else if ( container.selector !== '' && container.context === document ) {
- return container
- } else if ( container.attr('id') ) {
- return $('#' + container.attr('id'))
- } else {
- throw "cant get selector for pjax container!"
- }
- }
- // Internal: Filter and find all elements matching the selector.
- //
- // Where $.fn.find only matches descendants, findAll will test all the
- // top level elements in the jQuery object as well.
- //
- // elems - jQuery object of Elements
- // selector - String selector to match
- //
- // Returns a jQuery object.
- function findAll(elems, selector) {
- return elems.filter(selector).add(elems.find(selector));
- }
- function parseHTML(html) {
- return $.parseHTML(html, document, true)
- }
- // Internal: Extracts container and metadata from response.
- //
- // 1. Extracts X-PJAX-URL header if set
- // 2. Extracts inline <title> tags
- // 3. Builds response Element and extracts fragment if set
- //
- // data - String response data
- // xhr - XHR response
- // options - pjax options Object
- //
- // Returns an Object with url, title, and contents keys.
- function extractContainer(data, xhr, options) {
- var obj = {}
- // Prefer X-PJAX-URL header if it was set, otherwise fallback to
- // using the original requested url.
- obj.url = stripPjaxParam(xhr.getResponseHeader('X-PJAX-URL') || options.requestUrl)
- // Attempt to parse response html into elements
- if (/<html/i.test(data)) {
- var $head = $(parseHTML(data.match(/<head[^>]*>([\s\S.]*)<\/head>/i)[0]))
- var $body = $(parseHTML(data.match(/<body[^>]*>([\s\S.]*)<\/body>/i)[0]))
- } else {
- var $head = $body = $(parseHTML(data))
- }
- // If response data is empty, return fast
- if ($body.length === 0)
- return obj
- // If there's a <title> tag in the header, use it as
- // the page's title.
- obj.title = findAll($head, 'title').last().text()
- if (options.fragment) {
- // If they specified a fragment, look for it in the response
- // and pull it out.
- if (options.fragment === 'body') {
- var $fragment = $body
- } else {
- var $fragment = findAll($body, options.fragment).first()
- }
- if ($fragment.length) {
- obj.contents = $fragment.contents()
- // If there's no title, look for data-title and title attributes
- // on the fragment
- if (!obj.title)
- obj.title = $fragment.attr('title') || $fragment.data('title')
- }
- } else if (!/<html/i.test(data)) {
- obj.contents = $body
- }
- // Clean up any <title> tags
- if (obj.contents) {
- // Remove any parent title elements
- obj.contents = obj.contents.not(function() { return $(this).is('title') })
- // Then scrub any titles from their descendants
- obj.contents.find('title').remove()
- // Gather all script[src] elements
- obj.scripts = findAll(obj.contents, 'script[src]').remove()
- obj.contents = obj.contents.not(obj.scripts)
- }
- // Trim any whitespace off the title
- if (obj.title) obj.title = $.trim(obj.title)
- return obj
- }
- // Load an execute scripts using standard script request.
- //
- // Avoids jQuery's traditional $.getScript which does a XHR request and
- // globalEval.
- //
- // scripts - jQuery object of script Elements
- //
- // Returns nothing.
- function executeScriptTags(scripts) {
- if (!scripts) return
- var existingScripts = $('script[src]')
- scripts.each(function() {
- var src = this.src
- var matchedScripts = existingScripts.filter(function() {
- return this.src === src
- })
- if (matchedScripts.length) return
- var script = document.createElement('script')
- script.type = $(this).attr('type')
- script.src = $(this).attr('src')
- document.head.appendChild(script)
- })
- }
- // Internal: History DOM caching class.
- var cacheMapping = {}
- var cacheForwardStack = []
- var cacheBackStack = []
- // Push previous state id and container contents into the history
- // cache. Should be called in conjunction with `pushState` to save the
- // previous container contents.
- //
- // id - State ID Number
- // value - DOM Element to cache
- //
- // Returns nothing.
- function cachePush(id, value) {
- cacheMapping[id] = value
- cacheBackStack.push(id)
- // Remove all entires in forward history stack after pushing
- // a new page.
- while (cacheForwardStack.length)
- delete cacheMapping[cacheForwardStack.shift()]
- // Trim back history stack to max cache length.
- while (cacheBackStack.length > pjax.defaults.maxCacheLength)
- delete cacheMapping[cacheBackStack.shift()]
- }
- // Shifts cache from directional history cache. Should be
- // called on `popstate` with the previous state id and container
- // contents.
- //
- // direction - "forward" or "back" String
- // id - State ID Number
- // value - DOM Element to cache
- //
- // Returns nothing.
- function cachePop(direction, id, value) {
- var pushStack, popStack
- cacheMapping[id] = value
- if (direction === 'forward') {
- pushStack = cacheBackStack
- popStack = cacheForwardStack
- } else {
- pushStack = cacheForwardStack
- popStack = cacheBackStack
- }
- pushStack.push(id)
- if (id = popStack.pop())
- delete cacheMapping[id]
- }
- // Public: Find version identifier for the initial page load.
- //
- // Returns String version or undefined.
- function findVersion() {
- return $('meta').filter(function() {
- var name = $(this).attr('http-equiv')
- return name && name.toUpperCase() === 'X-PJAX-VERSION'
- }).attr('content')
- }
- // Install pjax functions on $.pjax to enable pushState behavior.
- //
- // Does nothing if already enabled.
- //
- // Examples
- //
- // $.pjax.enable()
- //
- // Returns nothing.
- function enable() {
- $.fn.pjax = fnPjax
- $.pjax = pjax
- $.pjax.enable = $.noop
- $.pjax.disable = disable
- $.pjax.click = handleClick
- $.pjax.submit = handleSubmit
- $.pjax.reload = pjaxReload
- $.pjax.defaults = {
- timeout: 650,
- push: true,
- replace: false,
- type: 'GET',
- dataType: 'html',
- scrollTo: 0,
- maxCacheLength: 20,
- version: findVersion
- }
- $(window).on('popstate.pjax', onPjaxPopstate)
- }
- // Disable pushState behavior.
- //
- // This is the case when a browser doesn't support pushState. It is
- // sometimes useful to disable pushState for debugging on a modern
- // browser.
- //
- // Examples
- //
- // $.pjax.disable()
- //
- // Returns nothing.
- function disable() {
- $.fn.pjax = function() { return this }
- $.pjax = fallbackPjax
- $.pjax.enable = enable
- $.pjax.disable = $.noop
- $.pjax.click = $.noop
- $.pjax.submit = $.noop
- $.pjax.reload = function() { window.location.reload() }
- $(window).off('popstate.pjax', onPjaxPopstate)
- }
- // Add the state property to jQuery's event object so we can use it in
- // $(window).bind('popstate')
- if ( $.inArray('state', $.event.props) < 0 )
- $.event.props.push('state')
- // Is pjax supported by this browser?
- $.support.pjax =
- window.history && window.history.pushState && window.history.replaceState &&
- // pushState isn't reliable on iOS until 5.
- !navigator.userAgent.match(/((iPod|iPhone|iPad).+\bOS\s+[1-4]|WebApps\/.+CFNetwork)/)
- $.support.pjax ? enable() : disable()
- })(jQuery);
第二步:将以下代码放到header.php文件中body前面即可.注意请将下方代码中的[]替换为<>
- [script type=“text/javascript”]
- $(document).pjax(‘a’, ‘#page’, {fragment:‘#page’, timeout:8000});
- [/script]
然后刷新你的网站体验全站无刷新的感觉吧,其他模版依此类推
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