notices paging using pjax

Marcin Ciunelis
1 parent b9c9ce3b
Showing 4 changed files with 285 additions and 4 deletions Show diff stats
app/controllers/errs_controller.rb
config/application.rb
public/javascripts/application.js
public/javascripts/jquery.pjax.js
@@ -34,6 +34,10 @@ class ErrsController &lt; ApplicationController
     @notices  = @problem.notices.paginate(:page => page, :per_page => 1)
     @notice   = @notices.first
     @comment = Comment.new
+    if request.headers['X-PJAX']
+      params["_pjax"] = nil
+      render :layout => false
+    end
   end
   def create_issue
@@ -39,7 +39,7 @@ module Errbit
     # config.i18n.default_locale = :de
     # JavaScript files you want as :defaults (application.js is always included).
-    config.action_view.javascript_expansions[:defaults] = %w(jquery underscore-1.1.6 rails form)
+    config.action_view.javascript_expansions[:defaults] = %w(jquery underscore-1.1.6 rails form jquery.pjax)
     # > rails generate - config
     config.generators do |g|
@@ -2,6 +2,8 @@
 $(function() {
+  var currentTab = "summary";
+  
   function init() {
     activateTabbedPanels();
@@ -31,6 +33,17 @@ $(function() {
     $('input[type=submit][data-action]').click(function() {
       $(this).closest('form').attr('action', $(this).attr('data-action'));
     });
+    
+    $('.notice-pagination').each(function() {
+      $('.notice-pagination a').pjax('#content', { timeout: 2000});
+      $('#content').bind('pjax:start',  function() {
+        currentTab = $('.tab-bar ul li a.button.active').attr('rel');
+      });
+
+      $('#content').bind('pjax:end',  function() {
+        activateTabbedPanels();
+      });
+    });
   }
   function activateTabbedPanels() {
@@ -39,13 +52,13 @@ $(function() {
       var panel = $('#'+tab.attr('rel'));
       panel.addClass('panel');
       panel.find('h3').hide();
-    })
+    });
     $('.tab-bar a').click(function(){
       activateTab($(this));
       return(false);
     });
-    activateTab($('.tab-bar a').first());
+    activateTab($('.tab-bar ul li a.button[rel=' + currentTab + ']'));
   }
   function activateTab(tab) {
@@ -65,7 +78,7 @@ $(function() {
         var checkbox = $(this).find('input[name="problems[]"]');
         checkbox.attr('checked', !checkbox.is(':checked'));
       }
-    })
+    });
   }
   init();
@@ -0,0 +1,264 @@
+// jquery.pjax.js
+// copyright chris wanstrath
+// https://github.com/defunkt/jquery-pjax
+
+(function($){
+
+// When called on a link, fetches the href with ajax into the
+// container specified as the first parameter 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.
+//
+// Accepts a jQuery ajax options object that may include these
+// pjax specific options:
+//
+// container - Where to stick the response body. Usually a String selector.
+//             $(container).html(xhr.responseBody)
+//      push - Whether to pushState the URL. Defaults to true (of course).
+//   replace - Want to use replaceState instead? That's cool.
+//
+// For convenience the first parameter can be either the container or
+// the options object.
+//
+// Returns the jQuery object
+$.fn.pjax = function( container, options ) {
+  if ( options )
+    options.container = container
+  else
+    options = $.isPlainObject(container) ? container : {container:container}
+
+  // We can't persist $objects using the history API so we must use
+  // a String selector. Bail if we got anything else.
+  if ( options.container && typeof options.container !== 'string' ) {
+    throw "pjax container must be a string selector!"
+    return false
+  }
+
+  return this.live('click', function(event){
+    // Middle click, cmd click, and ctrl click should open
+    // links in a new tab as normal.
+    if ( event.which > 1 || event.metaKey )
+      return true
+
+    var defaults = {
+      url: this.href,
+      container: $(this).attr('data-pjax'),
+      clickedElement: $(this),
+      fragment: null
+    }
+
+    $.pjax($.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. Must be a String.
+//             $(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.
+var pjax = $.pjax = function( options ) {
+  var $container = $(options.container),
+      success = options.success || $.noop
+
+  // We don't want to let anyone override our success handler.
+  delete options.success
+
+  // We can't persist $objects using the history API so we must use
+  // a String selector. Bail if we got anything else.
+  if ( typeof options.container !== 'string' )
+    throw "pjax container must be a string selector!"
+
+  options = $.extend(true, {}, pjax.defaults, options)
+
+  if ( $.isFunction(options.url) ) {
+    options.url = options.url()
+  }
+
+  options.context = $container
+
+  options.success = function(data){
+    if ( options.fragment ) {
+      // If they specified a fragment, look for it in the response
+      // and pull it out.
+      var $fragment = $(data).find(options.fragment)
+      if ( $fragment.length )
+        data = $fragment.children()
+      else
+        return window.location = options.url
+    } else {
+        // If we got no data or an entire web page, go directly
+        // to the page and let normal error handling happen.
+        if ( !$.trim(data) || /<html/i.test(data) )
+          return window.location = options.url
+    }
+
+    // Make it happen.
+    this.html(data)
+
+    // If there's a <title> tag in the response, use it as
+    // the page's title.
+    var oldTitle = document.title,
+        title = $.trim( this.find('title').remove().text() )
+    if ( title ) document.title = title
+
+    // No <title>? Fragment? Look for data-title and title attributes.
+    if ( !title && options.fragment ) {
+      title = $fragment.attr('title') || $fragment.data('title')
+    }
+
+    var state = {
+      pjax: options.container,
+      fragment: options.fragment,
+      timeout: options.timeout
+    }
+
+    // If there are extra params, save the complete URL in the state object
+    var query = $.param(options.data)
+    if ( query != "_pjax=true" )
+      state.url = options.url + (/\?/.test(options.url) ? "&" : "?") + query
+
+    if ( options.replace ) {
+      window.history.replaceState(state, document.title, options.url)
+    } else if ( options.push ) {
+      // this extra replaceState before first push ensures good back
+      // button behavior
+      if ( !pjax.active ) {
+        window.history.replaceState($.extend({}, state, {url:null}), oldTitle)
+        pjax.active = true
+      }
+
+      window.history.pushState(state, document.title, options.url)
+    }
+
+    // Google Analytics support
+    if ( (options.replace || options.push) && window._gaq )
+      _gaq.push(['_trackPageview'])
+
+    // If the URL has a hash in it, make sure the browser
+    // knows to navigate to the hash.
+    var hash = window.location.hash.toString()
+    if ( hash !== '' ) {
+      window.location.href = hash
+    }
+
+    // Invoke their success handler if they gave us one.
+    success.apply(this, arguments)
+  }
+
+  // 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
+  pjax.xhr = $.ajax(options)
+  $(document).trigger('pjax', [pjax.xhr, options])
+
+  return pjax.xhr
+}
+
+
+pjax.defaults = {
+  timeout: 650,
+  push: true,
+  replace: false,
+  // We want the browser to maintain two separate internal caches: one for
+  // pjax'd partial page loads and one for normal page loads. Without
+  // adding this secret parameter, some browsers will often confuse the two.
+  data: { _pjax: true },
+  type: 'GET',
+  dataType: 'html',
+  beforeSend: function(xhr){
+    this.trigger('pjax:start', [xhr, pjax.options])
+    // start.pjax is deprecated
+    this.trigger('start.pjax', [xhr, pjax.options])
+    xhr.setRequestHeader('X-PJAX', 'true')
+  },
+  error: function(xhr, textStatus, errorThrown){
+    if ( textStatus !== 'abort' )
+      window.location = pjax.options.url
+  },
+  complete: function(xhr){
+    this.trigger('pjax:end', [xhr, pjax.options])
+    // end.pjax is deprecated
+    this.trigger('end.pjax', [xhr, pjax.options])
+  }
+}
+
+
+// Used to detect initial (useless) popstate.
+// If history.state exists, assume browser isn't going to fire initial popstate.
+var popped = ('state' in window.history), initialURL = location.href
+
+
+// popstate handler takes care of the back and forward buttons
+//
+// You probably shouldn't use pjax on pages with other pushState
+// stuff yet.
+$(window).bind('popstate', function(event){
+  // Ignore inital popstate that some browsers fire on page load
+  var initialPop = !popped && location.href == initialURL
+  popped = true
+  if ( initialPop ) return
+
+  var state = event.state
+
+  if ( state && state.pjax ) {
+    var container = state.pjax
+    if ( $(container+'').length )
+      $.pjax({
+        url: state.url || location.href,
+        fragment: state.fragment,
+        container: container,
+        push: false,
+        timeout: state.timeout
+      })
+    else
+      window.location = location.href
+  }
+})
+
+
+// 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 yet.
+  && !navigator.userAgent.match(/(iPod|iPhone|iPad|WebApps\/.+CFNetwork)/)
+
+
+// Fall back to normalcy for older browsers.
+if ( !$.support.pjax ) {
+  $.pjax = function( options ) {
+    window.location = $.isFunction(options.url) ? options.url() : options.url
+  }
+  $.fn.pjax = function() { return this }
+}
+
+})(jQuery);
	@@ -39,7 +39,7 @@ module Errbit		@@ -39,7 +39,7 @@ module Errbit
39	# config.i18n.default_locale = :de	39	# config.i18n.default_locale = :de
40		40
41	# JavaScript files you want as :defaults (application.js is always included).	41	# JavaScript files you want as :defaults (application.js is always included).
42	- config.action_view.javascript_expansions[:defaults] = %w(jquery underscore-1.1.6 rails form)	42	+ config.action_view.javascript_expansions[:defaults] = %w(jquery underscore-1.1.6 rails form jquery.pjax)
43		43
44	# > rails generate - config	44	# > rails generate - config
45	config.generators do \|g\|	45	config.generators do \|g\|
@@ -0,0 +1,264 @@		@@ -0,0 +1,264 @@
	1	+// jquery.pjax.js
	2	+// copyright chris wanstrath
	3	+// https://github.com/defunkt/jquery-pjax
	4	+
	5	+(function($){
	6	+
	7	+// When called on a link, fetches the href with ajax into the
	8	+// container specified as the first parameter or with the data-pjax
	9	+// attribute on the link itself.
	10	+//
	11	+// Tries to make sure the back button and ctrl+click work the way
	12	+// you'd expect.
	13	+//
	14	+// Accepts a jQuery ajax options object that may include these
	15	+// pjax specific options:
	16	+//
	17	+// container - Where to stick the response body. Usually a String selector.
	18	+// $(container).html(xhr.responseBody)
	19	+// push - Whether to pushState the URL. Defaults to true (of course).
	20	+// replace - Want to use replaceState instead? That's cool.
	21	+//
	22	+// For convenience the first parameter can be either the container or
	23	+// the options object.
	24	+//
	25	+// Returns the jQuery object
	26	+$.fn.pjax = function( container, options ) {
	27	+ if ( options )
	28	+ options.container = container
	29	+ else
	30	+ options = $.isPlainObject(container) ? container : {container:container}
	31	+
	32	+ // We can't persist $objects using the history API so we must use
	33	+ // a String selector. Bail if we got anything else.
	34	+ if ( options.container && typeof options.container !== 'string' ) {
	35	+ throw "pjax container must be a string selector!"
	36	+ return false
	37	+ }
	38	+
	39	+ return this.live('click', function(event){
	40	+ // Middle click, cmd click, and ctrl click should open
	41	+ // links in a new tab as normal.
	42	+ if ( event.which > 1 \|\| event.metaKey )
	43	+ return true
	44	+
	45	+ var defaults = {
	46	+ url: this.href,
	47	+ container: $(this).attr('data-pjax'),
	48	+ clickedElement: $(this),
	49	+ fragment: null
	50	+ }
	51	+
	52	+ $.pjax($.extend({}, defaults, options))
	53	+
	54	+ event.preventDefault()
	55	+ })
	56	+}
	57	+
	58	+
	59	+// Loads a URL with ajax, puts the response body inside a container,
	60	+// then pushState()'s the loaded URL.
	61	+//
	62	+// Works just like $.ajax in that it accepts a jQuery ajax
	63	+// settings object (with keys like url, type, data, etc).
	64	+//
	65	+// Accepts these extra keys:
	66	+//
	67	+// container - Where to stick the response body. Must be a String.
	68	+// $(container).html(xhr.responseBody)
	69	+// push - Whether to pushState the URL. Defaults to true (of course).
	70	+// replace - Want to use replaceState instead? That's cool.
	71	+//
	72	+// Use it just like $.ajax:
	73	+//
	74	+// var xhr = $.pjax({ url: this.href, container: '#main' })
	75	+// console.log( xhr.readyState )
	76	+//
	77	+// Returns whatever $.ajax returns.
	78	+var pjax = $.pjax = function( options ) {
	79	+ var $container = $(options.container),
	80	+ success = options.success \|\| $.noop
	81	+
	82	+ // We don't want to let anyone override our success handler.
	83	+ delete options.success
	84	+
	85	+ // We can't persist $objects using the history API so we must use
	86	+ // a String selector. Bail if we got anything else.
	87	+ if ( typeof options.container !== 'string' )
	88	+ throw "pjax container must be a string selector!"
	89	+
	90	+ options = $.extend(true, {}, pjax.defaults, options)
	91	+
	92	+ if ( $.isFunction(options.url) ) {
	93	+ options.url = options.url()
	94	+ }
	95	+
	96	+ options.context = $container
	97	+
	98	+ options.success = function(data){
	99	+ if ( options.fragment ) {
	100	+ // If they specified a fragment, look for it in the response
	101	+ // and pull it out.
	102	+ var $fragment = $(data).find(options.fragment)
	103	+ if ( $fragment.length )
	104	+ data = $fragment.children()
	105	+ else
	106	+ return window.location = options.url
	107	+ } else {
	108	+ // If we got no data or an entire web page, go directly
	109	+ // to the page and let normal error handling happen.
	110	+ if ( !$.trim(data) \|\| /<html/i.test(data) )
	111	+ return window.location = options.url
	112	+ }
	113	+
	114	+ // Make it happen.
	115	+ this.html(data)
	116	+
	117	+ // If there's a <title> tag in the response, use it as
	118	+ // the page's title.
	119	+ var oldTitle = document.title,
	120	+ title = $.trim( this.find('title').remove().text() )
	121	+ if ( title ) document.title = title
	122	+
	123	+ // No <title>? Fragment? Look for data-title and title attributes.
	124	+ if ( !title && options.fragment ) {
	125	+ title = $fragment.attr('title') \|\| $fragment.data('title')
	126	+ }
	127	+
	128	+ var state = {
	129	+ pjax: options.container,
	130	+ fragment: options.fragment,
	131	+ timeout: options.timeout
	132	+ }
	133	+
	134	+ // If there are extra params, save the complete URL in the state object
	135	+ var query = $.param(options.data)
	136	+ if ( query != "_pjax=true" )
	137	+ state.url = options.url + (/\?/.test(options.url) ? "&" : "?") + query
	138	+
	139	+ if ( options.replace ) {
	140	+ window.history.replaceState(state, document.title, options.url)
	141	+ } else if ( options.push ) {
	142	+ // this extra replaceState before first push ensures good back
	143	+ // button behavior
	144	+ if ( !pjax.active ) {
	145	+ window.history.replaceState($.extend({}, state, {url:null}), oldTitle)
	146	+ pjax.active = true
	147	+ }
	148	+
	149	+ window.history.pushState(state, document.title, options.url)
	150	+ }
	151	+
	152	+ // Google Analytics support
	153	+ if ( (options.replace \|\| options.push) && window._gaq )
	154	+ _gaq.push(['_trackPageview'])
	155	+
	156	+ // If the URL has a hash in it, make sure the browser
	157	+ // knows to navigate to the hash.
	158	+ var hash = window.location.hash.toString()
	159	+ if ( hash !== '' ) {
	160	+ window.location.href = hash
	161	+ }
	162	+
	163	+ // Invoke their success handler if they gave us one.
	164	+ success.apply(this, arguments)
	165	+ }
	166	+
	167	+ // Cancel the current request if we're already pjaxing
	168	+ var xhr = pjax.xhr
	169	+ if ( xhr && xhr.readyState < 4) {
	170	+ xhr.onreadystatechange = $.noop
	171	+ xhr.abort()
	172	+ }
	173	+
	174	+ pjax.options = options
	175	+ pjax.xhr = $.ajax(options)
	176	+ $(document).trigger('pjax', [pjax.xhr, options])
	177	+
	178	+ return pjax.xhr
	179	+}
	180	+
	181	+
	182	+pjax.defaults = {
	183	+ timeout: 650,
	184	+ push: true,
	185	+ replace: false,
	186	+ // We want the browser to maintain two separate internal caches: one for
	187	+ // pjax'd partial page loads and one for normal page loads. Without
	188	+ // adding this secret parameter, some browsers will often confuse the two.
	189	+ data: { _pjax: true },
	190	+ type: 'GET',
	191	+ dataType: 'html',
	192	+ beforeSend: function(xhr){
	193	+ this.trigger('pjax:start', [xhr, pjax.options])
	194	+ // start.pjax is deprecated
	195	+ this.trigger('start.pjax', [xhr, pjax.options])
	196	+ xhr.setRequestHeader('X-PJAX', 'true')
	197	+ },
	198	+ error: function(xhr, textStatus, errorThrown){
	199	+ if ( textStatus !== 'abort' )
	200	+ window.location = pjax.options.url
	201	+ },
	202	+ complete: function(xhr){
	203	+ this.trigger('pjax:end', [xhr, pjax.options])
	204	+ // end.pjax is deprecated
	205	+ this.trigger('end.pjax', [xhr, pjax.options])
	206	+ }
	207	+}
	208	+
	209	+
	210	+// Used to detect initial (useless) popstate.
	211	+// If history.state exists, assume browser isn't going to fire initial popstate.
	212	+var popped = ('state' in window.history), initialURL = location.href
	213	+
	214	+
	215	+// popstate handler takes care of the back and forward buttons
	216	+//
	217	+// You probably shouldn't use pjax on pages with other pushState
	218	+// stuff yet.
	219	+$(window).bind('popstate', function(event){
	220	+ // Ignore inital popstate that some browsers fire on page load
	221	+ var initialPop = !popped && location.href == initialURL
	222	+ popped = true
	223	+ if ( initialPop ) return
	224	+
	225	+ var state = event.state
	226	+
	227	+ if ( state && state.pjax ) {
	228	+ var container = state.pjax
	229	+ if ( $(container+'').length )
	230	+ $.pjax({
	231	+ url: state.url \|\| location.href,
	232	+ fragment: state.fragment,
	233	+ container: container,
	234	+ push: false,
	235	+ timeout: state.timeout
	236	+ })
	237	+ else
	238	+ window.location = location.href
	239	+ }
	240	+})
	241	+
	242	+
	243	+// Add the state property to jQuery's event object so we can use it in
	244	+// $(window).bind('popstate')
	245	+if ( $.inArray('state', $.event.props) < 0 )
	246	+ $.event.props.push('state')
	247	+
	248	+
	249	+// Is pjax supported by this browser?
	250	+$.support.pjax =
	251	+ window.history && window.history.pushState && window.history.replaceState
	252	+ // pushState isn't reliable on iOS yet.
	253	+ && !navigator.userAgent.match(/(iPod\|iPhone\|iPad\|WebApps\/.+CFNetwork)/)
	254	+
	255	+
	256	+// Fall back to normalcy for older browsers.
	257	+if ( !$.support.pjax ) {
	258	+ $.pjax = function( options ) {
	259	+ window.location = $.isFunction(options.url) ? options.url() : options.url
	260	+ }
	261	+ $.fn.pjax = function() { return this }
	262	+}
	263	+
	264	+})(jQuery);