* Tabs Project: Initial Commit

1 files changed, 110 insertions, 0 deletions

diff --git a/jsonly.js b/jsonly.js
new file mode 100644
index 0000000..9e1cf2d
--- /dev/null
+++ b/jsonly.js
@@ -0,0 +1,110 @@
+/**
+ * @brief jsonly.js contains the functions that are only called in js,
+ * not translated from server-side code.
+ */
+
+$('#transp').change( do_transpose );
+var lastTransp = parseInt($('#transp').val());
+
+function do_transpose()
+{
+	var transp = parseInt($('#transp').val());
+	var neww = transp;
+
+	$(".tabs").each(function(){
+		// Since we only store text that is displayed, transpose relative to 
+		// previous transposition.
+		// Requires the class to be "tabs chordXX";
+		var old = parseInt($(this).attr('class').substring(10));
+		if ( isNaN(old) )
+		{
+			old = $(this).attr('class').substring(10);
+			neww = transpadd(old, transp - lastTransp);
+		}
+		$(this).text( zj_transpose2( $(this).text(), transp - lastTransp ) );
+		$(this).removeClass("chord"+old);
+		$(this).addClass("chord"+neww);
+	});
+	$(".btn[data-key]").each(function(){
+		console.log($(this));
+		var oldKey = $(this).attr('data-key');
+		var newKey = transpadd(oldKey, transp - lastTransp);
+		$(this).removeClass('btn-'+oldKey);
+		$(this).addClass('btn-'+newKey);
+		$(this).attr('data-key', newKey);
+		$(this).text( $(this).attr('data-words') + newKey );
+		var tt = parseInt($(this).attr('href').match(/transp=(.+)/)[1]);
+		tt = ( transp - lastTransp + 24 + tt)%12;
+		var newhref = $(this).attr('href').match(/(.*?&transp=).+/)[1] + tt;
+		$(this).attr('href', newhref);
+	})
+	lastTransp = transp;
+}
+
+$(".tabs").click(function(e) {
+    s = window.getSelection();
+    var range = s.getRangeAt(0);
+    var node = s.anchorNode;
+    while (range.toString().indexOf(' ') != 0 ) {
+		if (range.startOffset == 0)
+			break;
+        range.setStart(node, (range.startOffset - 1));
+    }
+    range.setStart(node, Math.max(0,range.startOffset));
+	while (range.toString().lastIndexOf(' ') != range.toString().length - 1
+		|| range.toString().length <= 1 )
+	{
+		range.setEnd(node, range.endOffset+1);
+		if ( range.endOffset == node.length)
+			break;
+    }
+	//range.setEnd(Math.min(range.endOffset+1,node.length);
+    var str = range.toString().trim();
+	if( str != "" )
+		show_tab(str);
+});
+
+function show_tab( chord )
+{
+	var canvas = $("#chordy")[0];
+	var context = canvas.getContext('2d');
+	context.clearRect(0, 0, canvas.width, canvas.height);
+
+	getChordFrets(chord);
+
+/*
+	var img = "<img class='myimage' src='chordimages/" + chord + ".png'/>";
+	$("#chordarea").append(img);
+	$(".myimage").error(function(){
+		$(this).hide();
+	});*/
+}
+
+function getChordFrets(chord)
+{
+	$("#messages").html("");
+	chord = chord.replace("(", "");
+	chord = chord.replace(")", "");
+	chord = chord.replace("sus", "s");
+	chord = chord.replace("s4", "s");
+	chord = chord.replace("s", "sus");
+	chord = chord.replace("7sus", "sus7");	
+	chord = chord.replace("mj7", "maj7");
+	var chordd = chord;
+	chordd = chordd.replace("Db", "C#");
+	chordd = chordd.replace("Eb", "D#");
+	chordd = chordd.replace("Gb", "F#");
+	chordd = chordd.replace("Ab", "G#");
+	chordd = chordd.replace("Bb", "A#");
+	taco = chorddict[chordd];
+	if ( taco ) {
+		ChordCharter.drawChord("chordy", 30, 25, chord, taco);
+	} else {
+		//Cross-origin stuff
+		/*var url = "http://jguitar.com/chordsearch?chordsearch="+chord+"&labels=none&fretSpan=4";
+		$.get(url, function(data, status){
+			$("#messages").prepend("something something gotten");
+		});*/
+		$("#messages").prepend("Couldn't find a chord for '"+ chord +"'");
+	}
+}
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