From 701405d00364c63c0efbf11a39368dd2cbee0053 Mon Sep 17 00:00:00 2001 From: Eric Wong Date: Thu, 12 Nov 2009 18:49:21 -0800 Subject: Add jQuery-compatible Rails example This uses the new Upr::JSON class to generate output. Apparently this is the same format used by Apache, nginx, and lighttpd. Hopefully this will help increase upr adoption. --- .../app/controllers/application_controller.rb | 9 +- .../app/controllers/files_controller.rb | 35 +++++-- .../app/controllers/progress_controller.rb | 10 ++ .../rails_app-2.3.4/app/views/files/new.html.erb | 56 ++++++++++ .../rails_app-2.3.4/public/javascripts/jquery.js | 32 ++++++ .../public/javascripts/jquery.uploadProgress.js | 116 +++++++++++++++++++++ 6 files changed, 246 insertions(+), 12 deletions(-) create mode 100644 examples/rails_app-2.3.4/app/controllers/progress_controller.rb create mode 100644 examples/rails_app-2.3.4/app/views/files/new.html.erb create mode 100644 examples/rails_app-2.3.4/public/javascripts/jquery.js create mode 100644 examples/rails_app-2.3.4/public/javascripts/jquery.uploadProgress.js diff --git a/examples/rails_app-2.3.4/app/controllers/application_controller.rb b/examples/rails_app-2.3.4/app/controllers/application_controller.rb index 11df5d1..eccce4e 100644 --- a/examples/rails_app-2.3.4/app/controllers/application_controller.rb +++ b/examples/rails_app-2.3.4/app/controllers/application_controller.rb @@ -1,3 +1,10 @@ class ApplicationController < ActionController::Base - helper :all # include all helpers, all the time + # helper :all # include all helpers, all the time + defined?($upr) or before_filter do + # grab the backend in case we forget to set it (or if we're using DRb) + defined?($upr) or ObjectSpace.each_object(Upr::InputWrapper) do |x| + $upr ||= x.backend + end + end + end diff --git a/examples/rails_app-2.3.4/app/controllers/files_controller.rb b/examples/rails_app-2.3.4/app/controllers/files_controller.rb index 6509a71..004c13e 100644 --- a/examples/rails_app-2.3.4/app/controllers/files_controller.rb +++ b/examples/rails_app-2.3.4/app/controllers/files_controller.rb @@ -1,21 +1,26 @@ require 'digest/sha1' class FilesController < ApplicationController - defined?($upr) or before_filter do - # grab the backend in case we forget to set it (or if we're using DRb) - defined?($upr) or ObjectSpace.each_object(Upr::InputWrapper) do |x| - $upr ||= x.backend + # used by streaming upload progress + def new + if request.post? + size, hexdigest = _read_sha1_size + msg = "Successfully upload file (size: #{size}, sha1: #{hexdigest})" + flash[:notice] = msg + redirect_to "/files/new" end end def index end + # used by mup-compatible upload progress def status tmp = $upr.read(params[:upload_id]).inspect render :text => "#{Rack::Utils.escape_html(tmp)}\n" end + # used by mup-compatible upload progress def progress render :update do |page| status = $upr.read(params[:upload_id]) and @@ -23,19 +28,27 @@ class FilesController < ApplicationController end end + # used by mup-compatible upload progress def upload - file = params[:data] + size, hexdigest = _read_sha1_size + render :text => "sha1: #{hexdigest}
" \ + "size: #{size}
" \ + '' + end + +private + + def _read_sha1_size + file = params[:data] or return [ -1, :unknown ] + File.unlink(file.path) if file.respond_to?(:path) digest = Digest::SHA1.new if buf = file.read(16384) begin digest.update(buf) end while file.read(16384, buf) end - size = file.stat.size - File.unlink(file.path) - render :text => "sha1: #{digest.hexdigest}
" \ - "size: #{size}
" \ - '' + [ file.size, digest.hexdigest ] end + end diff --git a/examples/rails_app-2.3.4/app/controllers/progress_controller.rb b/examples/rails_app-2.3.4/app/controllers/progress_controller.rb new file mode 100644 index 0000000..b3d91f3 --- /dev/null +++ b/examples/rails_app-2.3.4/app/controllers/progress_controller.rb @@ -0,0 +1,10 @@ +class ProgressController < ApplicationController + def index + opt = { + :backend => $upr, + :frequency => 0.5, + :env => request.env, + } + render(Upr::JSON.new(opt).rails_render_options) + end +end diff --git a/examples/rails_app-2.3.4/app/views/files/new.html.erb b/examples/rails_app-2.3.4/app/views/files/new.html.erb new file mode 100644 index 0000000..42f5f27 --- /dev/null +++ b/examples/rails_app-2.3.4/app/views/files/new.html.erb @@ -0,0 +1,56 @@ + + + + + ajaxFileUpload + + + + + + + + + <% if flash[:notice] %> +

<%= flash[:notice] %>

+ <% end %> +
+ + +
+ +
+
+
 
+
+
+
+ + diff --git a/examples/rails_app-2.3.4/public/javascripts/jquery.js b/examples/rails_app-2.3.4/public/javascripts/jquery.js new file mode 100644 index 0000000..82b98e1 --- /dev/null +++ b/examples/rails_app-2.3.4/public/javascripts/jquery.js @@ -0,0 +1,32 @@ +/* + * jQuery 1.2.6 - New Wave Javascript + * + * Copyright (c) 2008 John Resig (jquery.com) + * Dual licensed under the MIT (MIT-LICENSE.txt) + * and GPL (GPL-LICENSE.txt) licenses. + * + * $Date: 2008-05-24 14:22:17 -0400 (Sat, 24 May 2008) $ + * $Rev: 5685 $ + */ +(function(){var _jQuery=window.jQuery,_$=window.$;var jQuery=window.jQuery=window.$=function(selector,context){return new jQuery.fn.init(selector,context);};var quickExpr=/^[^<]*(<(.|\s)+>)[^>]*$|^#(\w+)$/,isSimple=/^.[^:#\[\.]*$/,undefined;jQuery.fn=jQuery.prototype={init:function(selector,context){selector=selector||document;if(selector.nodeType){this[0]=selector;this.length=1;return this;}if(typeof selector=="string"){var 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method='scroll'+name;jQuery.fn[method]=function(val){if(!this[0])return;return val!=undefined?this.each(function(){this==window||this==document?window.scrollTo(!i?val:jQuery(window).scrollLeft(),i?val:jQuery(window).scrollTop()):this[method]=val;}):this[0]==window||this[0]==document?self[i?'pageYOffset':'pageXOffset']||jQuery.boxModel&&document.documentElement[method]||document.body[method]:this[0][method];};});jQuery.each(["Height","Width"],function(i,name){var tl=i?"Left":"Top",br=i?"Right":"Bottom";jQuery.fn["inner"+name]=function(){return this[name.toLowerCase()]()+num(this,"padding"+tl)+num(this,"padding"+br);};jQuery.fn["outer"+name]=function(margin){return this["inner"+name]()+num(this,"border"+tl+"Width")+num(this,"border"+br+"Width")+(margin?num(this,"margin"+tl)+num(this,"margin"+br):0);};});})(); \ No newline at end of file diff --git a/examples/rails_app-2.3.4/public/javascripts/jquery.uploadProgress.js b/examples/rails_app-2.3.4/public/javascripts/jquery.uploadProgress.js new file mode 100644 index 0000000..53da910 --- /dev/null +++ b/examples/rails_app-2.3.4/public/javascripts/jquery.uploadProgress.js @@ -0,0 +1,116 @@ +/* +* jquery.uploadProgress +* +* Copyright (c) 2008 Piotr Sarnacki (drogomir.com) +* +* Licensed under the MIT license: +* http://www.opensource.org/licenses/mit-license.php +* +*/ +(function($) { + $.fn.uploadProgress = function(options) { + options = $.extend({ + dataType: "json", + interval: 2000, + progressBar: "#progressbar", + progressUrl: "/progress", + start: function() {}, + uploading: function() {}, + complete: function() {}, + success: function() {}, + error: function() {}, + preloadImages: [], + uploadProgressPath: '/javascripts/jquery.uploadProgress.js', + jqueryPath: '/javascripts/jquery.js', + timer: "" + }, options); + + $(function() { + //preload images + for(var i = 0; i").attr("src", options.preloadImages[i]); + } + /* tried to add iframe after submit (to not always load it) but it won't work. + safari can't get scripts properly while submitting files */ + if($.browser.safari && top.document == document) { + /* iframe to send ajax requests in safari + thanks to Michele Finotto for idea */ + iframe = document.createElement('iframe'); + iframe.name = "progressFrame"; + $(iframe).css({width: '0', height: '0', position: 'absolute', top: '-3000px'}); + document.body.appendChild(iframe); + + var d = iframe.contentWindow.document; + d.open(); + /* weird - safari won't load scripts without this lines... */ + d.write(''); + d.close(); + + var b = d.body; + var s = d.createElement('script'); + s.src = options.jqueryPath; + /* must be sure that jquery is loaded */ + s.onload = function() { + var s1 = d.createElement('script'); + s1.src = options.uploadProgressPath; + b.appendChild(s1); + } + b.appendChild(s); + } + }); + + return this.each(function(){ + $(this).bind('submit', function() { + var uuid = ""; + for (i = 0; i < 32; i++) { uuid += Math.floor(Math.random() * 16).toString(16); } + + /* update uuid */ + options.uuid = uuid; + /* start callback */ + options.start(); + + /* patch the form-action tag to include the progress-id if X-Progress-ID has been already added just replace it */ + if(old_id = /X-Progress-ID=([^&]+)/.exec($(this).attr("action"))) { + var action = $(this).attr("action").replace(old_id[1], uuid); + $(this).attr("action", action); + } else { + $(this).attr("action", jQuery(this).attr("action") + "?X-Progress-ID=" + uuid); + } + var uploadProgress = $.browser.safari ? progressFrame.jQuery.uploadProgress : jQuery.uploadProgress; + options.timer = window.setInterval(function() { uploadProgress(this, options) }, options.interval); + }); + }); + }; + +jQuery.uploadProgress = function(e, options) { + jQuery.ajax({ + type: "GET", + url: options.progressUrl + "?X-Progress-ID=" + options.uuid, + dataType: options.dataType, + success: function(upload) { + if (upload.state == 'uploading') { + upload.percents = Math.floor((upload.received / upload.size)*1000)/10; + + var bar = $.browser.safari ? $(options.progressBar, parent.document) : $(options.progressBar); + bar.css({width: upload.percents+'%'}); + options.uploading(upload); + } + + if (upload.state == 'done' || upload.state == 'error') { + window.clearTimeout(options.timer); + options.complete(upload); + } + + if (upload.state == 'done') { + options.success(upload); + } + + if (upload.state == 'error') { + options.error(upload); + } + } + }); +}; + +})(jQuery); -- cgit v1.2.3-24-ge0c7