remove old version number

[sjy/austlii.git] / austlii.js

diff --git a/austlii.js b/austlii.js
index e506188..9cd2a0c 100644 (file)
--- a/austlii.js
+++ b/austlii.js
@@ -1,10 +1,10 @@
 /* austlii.js
 /* austlii.js

- * Bookmarklet to add annotation tools to AustLII cases.
- * Invoke with: 
+ * Author: Scott Young <[email protected]>
+ * Bookmarklet to add annotation tools to AustLII cases. Invoke with:

  * javascript:var d=document;var s=d.createElement("script");s.src="http://splintax.ucc.asn.au/austlii/austlii.js";s.type="text/javascript";d.getElementsByTagName('head').item(0).appendChild(s); */
 
  * javascript:var d=document;var s=d.createElement("script");s.src="http://splintax.ucc.asn.au/austlii/austlii.js";s.type="text/javascript";d.getElementsByTagName('head').item(0).appendChild(s); */
 

+// create a namespace for this tool

 window.austlii = {
 window.austlii = {

-    VERSION: '0.1',

     load: function(url, cb) {
         // Load an arbitrary JavaScript file and fire cb.
         var s = document.createElement("script");
     load: function(url, cb) {
         // Load an arbitrary JavaScript file and fire cb.
         var s = document.createElement("script");


@@ -17,75 +17,126 @@ window.austlii = {
         s.rel = "stylesheet"; s.type = "text/css"; s.href = url; 
         document.getElementsByTagName('head').item(0).appendChild(s); return;
     },
         s.rel = "stylesheet"; s.type = "text/css"; s.href = url; 
         document.getElementsByTagName('head').item(0).appendChild(s); return;
     },

-    main: function() {
-        austlii.prune("austlii", "jquery");
-        if (window.location.host.slice(-14) != "austlii.edu.au" ||
-            window.location.pathname.slice(0,10) != "/au/cases/" ||
-            window.location.pathname.slice(-5) != ".html")
-            console.log("You're not looking at a case on AustLII.");
-        else
-            austlii.paintMenu();
-    },
-    prune: function() {
-        // Remove all but the newest script tag containing the queries passed in as arguments.
-        for (var i = 0; i < arguments.length; i++) {
-            var $els = $("head script[src*="+arguments[i]+"]");
-            var toRemove = $els.slice(0,-1);
-            if (toRemove.length > 0) {
-                toRemove.remove();
-                console.log("Removed "+toRemove.length+" stale scripts matching '"+arguments[i]+"'...");
-            }
-        }
-    },
+    url: function(relative_path) {
+        // return url relative to the source of this file, eg. http://splintax.ucc.asn.au/austlii/
+        var prefix = $('script[src$="austlii.js"]').attr('src').replace(/austlii\.js/, "");
+        return prefix + relative_path;
+    }

 };
 
 };
 

-austlii.paintMenu = function() {
+// Initialises once jQuery is loaded.
+austlii.main = function() {
+    austlii.style(austlii.url("austlii.css")); // inject css
+    // set viewport width so iPad doesn't zoom out
+    $("head").append('<meta name="viewport" content="initial-scale=1.0" />');
+    $("a").slice(10,16).css({"margin-right": "1em"}); // space out "Database Search", ... links

 
 

-    austlii.style("http://splintax.ucc.asn.au/austlii/austlii.css");
+    austlii.markup();
+    austlii.menu();
+    $(window).scroll(austlii.scrollHandler).scroll();

 
 

-    // remove text nodes ([] surrounding "Download", etc)
-    var textNodes = $("body").contents().filter(function(){return this.nodeType == 3;}).remove();
-    // hide other unnecessary menu elements
-    var $els = $("body").children(); // excludes text nodes
-    var index = 0;
-    while ($els[index].tagName != "H1") {
-        $els[index].style.display = "none"; index++;
-    }
-    // add back to top
-    $("h1").eq(1).wrap('<a name="top">');
+    // enable smooth scrolling on anchors
+    // TODO: doing this synchronously makes for slow injection on mobile browsers
+    austlii.load(austlii.url("jquery.scrollTo-1.4.2-min.js"), function() {
+        austlii.load(austlii.url("jquery.localscroll-1.2.7-min.js"), function() {
+            $.localScroll({duration: '200'});
+        });
+    });
+
+    // TODO: user annotations
+    $("#trigger-highlight").click(austlii.highlight);
+}
+
+// Cleans up page and adds semantic markup.
+austlii.markup = function() {
+    // remove cruft
+    $("br").remove();
+    $('img[alt="AustLII"]').detach().prependTo("body");
+    $("table").remove();

 
 

-    // highlight case title
-    $("center i").first().parent().addClass("citation");
+    $("h1").wrap('<a class="section" name="top">'); // add back-to-top
+    $('a[name="fn1"]').addClass("section"); // mark beginning of footnotes

 
     // find and markup judges
 
     // find and markup judges

-    var judgeExp = /([A-Zc, ]+)((&nbsp;| )C?JJ?\.)/g;
-    var replacementText = document.body.innerHTML.replace(judgeExp, '<a class="judge" name="$1">$1$2</a>');
+    var judgeExp = /([A-Zc]{3})((?:[A-Z\s,]|&nbsp;)+C?J?J\.)/g
+    /* This regex is confusing and I keep breaking it. Remember:
+     * [A-Zc] is used to match McHUGH J.
+     * Since we're matching innerHTML &nbsp; is not part of \s.
+     * The first 3 characters are captured, hopefully because they are ASCII non-whitespace
+     * suitable for use in the <a name>. */
+    var replacementText = document.body.innerHTML.replace(judgeExp, '<a class="section" name="$1">$1$2</a>');

     document.body.innerHTML = replacementText;
     document.body.innerHTML = replacementText;

+};

 
 

-    // add menu
-    var $menu = $('<div id="menu"><a href="#top">Top</a></div>');
-    // add jumplinks for each judge
-    var $judges = $('<ol id="judges"></ol>');
-    $("a.judge").each(function(){
-        var $li = $('<li><a href="#' + this.name + '">' + $(this).html() + '</a></li>');
-        $judges.append($li);
-    }); $menu.append($judges);
-    // add annotation features
-    $menu.append($('<a id="trigger-highlight" href="#">Highlight</a>'));
-    $("body").append($menu);
+// Updates responsive menu whenever the page is scrolled.
+austlii.scrollHandler = function() {
+    var currentPosition = $(window).scrollTop() + $(window).height()/2;
+    
+    var $anchors = $("#container a.section");
+    var $links = $("#menu ol li a");
+    var $pars = $("#container ol li").not("ol ol li");

 
 

-    // enable smooth scrolling on anchors
-    austlii.load("http://splintax.ucc.asn.au/cases/jquery.scrollTo-1.4.2-min.js", function() {
-        austlii.load("http://splintax.ucc.asn.au/cases/jquery.localscroll-1.2.7-min.js", function() {
-            $.localScroll({duration: '200'});
-        });
-    });
+    // remove existing section highlight and citation
+    $links.removeClass("current");
+    $("#menu .pinpoint").remove();

 
 

+    // find the current document section
+    var $anchor = $anchors.filter(function(){
+        // is this anchor above the fold?
+        return currentPosition > $(this).offset().top;
+    }).last(); // current section = last anchor above fold
+    // highlight the link to the current document section
+    $links.filter('[href="#' + $anchor.attr("name") + '"]').addClass("current");

 
 

-    $("#trigger-highlight").click(austlii.highlight);
+    // check whether we're in the judgment body
+    if ( currentPosition > $pars.first().offset().top &&
+         currentPosition < $pars.last().offset().top ) {
+        // we are, so find the current paragraph and add a pinpoint citation
+        var $par = $pars.filter(function(){
+            // is this paragraph above the fold?
+            return currentPosition > $(this).offset().top;
+        }).last(); // current paragraph = last paragraph above fold
+        if ( $par.val() != 0 ) { // don't add unofficial paragraph citations on old cases
+            // TODO: make it work anyway, but add a warning?
+            var $pinpoint = $('<span class="pinpoint"> at ['+ $par.val() +']</span>');
+            $("#menu a.current").after($pinpoint); // add citation
+        }
+    }
+};

 
 

+// Create the responsive menu.
+austlii.menu = function() {
+    // wrap the source body content in a container
+    $("body").children().wrapAll('<div id="container" />');
+
+    // create and prepend menu to the page
+    var $menu = $('<div id="menu"></div>');
+    $('<h2>'+ $("h2").first().html() +'</h2>').prependTo($menu); // add header
+    $('img[alt="AustLII"]').detach().prependTo($menu);
+    $menu.prependTo("body");
+
+    // create and insert links in the menu
+    var $links = $('<ol />');
+    // headnote
+    $links.append('<li><a href="#top">Headnote</a><span class="spacer">&middot;</span></li>')
+    // judgments
+    var $judges = $("a.section").slice(1,-1);
+    $judges.each(function(i){
+        var li = '<li><a href="#' + this.name + '">' + $(this).html().slice(0,-1) + '</a>';
+        if ( i < $judges.length )
+            li += '<span class="spacer">&middot;</span>'
+        li += '</li>';
+        $links.append(li);
+    });
+    // footnotes
+    $links.append('<li><a href="#fn1">Footnotes</a></li>');
+    $menu.append($links);
+
+    // add annotation features
+    //$menu.append($('<a id="trigger-highlight" href="#">Highlight</a>'));

 };
 
 };
 

+// FIXME Highlight the current selection.

 austlii.highlight = function(event) {
     event.preventDefault();
     var sel = document.getSelection();
 austlii.highlight = function(event) {
     event.preventDefault();
     var sel = document.getSelection();


@@ -108,5 +159,17 @@ austlii.highlight = function(event) {
     else {console.log("You haven't highlighted anything.")}
 };
 
     else {console.log("You haven't highlighted anything.")}
 };
 

-console.log("Loaded austlii.js v"+austlii.VERSION+".");
-austlii.load('http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js', austlii.main);
+// don't run on other sites
+if (window.location.host.slice(-14) != "austlii.edu.au" ||
+    window.location.pathname.slice(0,10) != "/au/cases/" ||
+    window.location.pathname.slice(-5) != ".html")
+    console.error("You're not looking at a case on AustLII.");
+
+else if (document.getElementsByTagName("script").length > 1)
+    console.error("austlii.js will not run when there are other scripts on the page.");
+
+else {
+    console.log("Loaded austlii.js.");
+    // load jQuery and initialise the bookmarklet
+    austlii.load('http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js', austlii.main);
+}