Created
January 20, 2011 23:29
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta http-equiv="content-type" content="text/html; charset=utf-8"> | |
| <title>3rd party website using the bookmarking widget</title> | |
| </head> | |
| <body> | |
| ....content.... | |
| <!-- Embed the script tag to make the widget show here --> | |
| <script src="http://bookmarking-site.com/javascripts/widget.js"></script> | |
| ....content.... | |
| </body> | |
| </html> |
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| class BookmarksController < ApplicationController | |
| # The rails route file declaration to for save.json | |
| # action to repond to GET request. | |
| # | |
| # resources :bookmarks do | |
| # collection do | |
| # get :save | |
| # end | |
| # end | |
| # | |
| def save | |
| # if there's a user found | |
| if current_user | |
| Bookmark.create(:url => params[:url], :user => current_user) | |
| response = "window.Academia.bookmark_callback(true);" | |
| else | |
| response = "window.Academia.bookmark_callback(false);" | |
| end | |
| respond_to do |wants| | |
| wants.json { render :text => response } | |
| end | |
| end | |
| private | |
| def current_user | |
| @current_user ||= User.find(session[:user_id]) if session[:user_id] | |
| end | |
| end |
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| // write the widget into the page | |
| document.write('<a href="#" class="save_to_academia_bookmarks">Bookmark This Page</a>'); | |
| window.Academia = window.Academia || {}; | |
| (function(a){ | |
| // This is the callback function the json response from the server | |
| a.bookmark_callback = function(saved){ | |
| if (!saved) { | |
| console.log("page was not saved, respond appropriately... open up authentication window etc"); | |
| } | |
| else { | |
| console.log("page was saved, respond appropriately... indicate to user it was saved"); | |
| } | |
| } | |
| // the click event handler for bookmarking widget link | |
| a.a_links = document.getElementsByClassName("save_to_academia_bookmarks"); | |
| for (i = 0; i < a.a_links.length; i++) { | |
| a.a_links[i].onclick = function(e){ | |
| var script = document.createElement('script'); | |
| script.src = "http://bookmarking-site.com/bookmarks/save.json?url=" + window.location.href; | |
| document.body.appendChild(script); | |
| return false; | |
| } | |
| } | |
| })(Academia); |
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Cross-domain Javascript using JSONP.