LaBB-CAT Code

// @licstart  The following is the entire license notice for the JavaScript code in this page.
// @license magnet:?xt=urn:btih:0b31508aeb0634b347b8270c7bee4d411b5d4109&dn=agpl-3.0.txt AGPL v3.0
// The following is the entire license notice for the JavaScript code in this page.
//
// Copyright 2015 New Zealand Institute of Language, Brain and Behaviour, 
// University of Canterbury
// Written by Robert Fromont - robert.fromont@canterbury.ac.nz
//
//    This file is part of LaBB-CAT.
//
//    LaBB-CAT is free software; you can redistribute it and/or modify
//    it under the terms of the GNU Affero General Public License as published by
//    the Free Software Foundation; either version 3 of the License, or
//    (at your option) any later version.
//
//    LaBB-CAT is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//    GNU Affero General Public License for more details.
//
//    You should have received a copy of the GNU Affero General Public License
//    along with LaBB-CAT; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
//    As additional permission under GNU AGPL version 3 section 7, you
//    may distribute non-source (e.g., minimized or compacted) forms of
//    that code without the copy of the GNU AGPL normally required by
//    section 4, provided you include this license notice and a URL
//    through which recipients can access the Corresponding Source.   
//
// @licend The above is the entire license notice for the JavaScript code in this page.

var lastId;
var editingGrid;

// send messages from the browser to the applet
function praat()  // RF20040116
{
    if (lastId != null)
    {
	document.applets[0].cmd_praat_selection(lastId);
    }
    else
    {
	document.applets[0].cmd_praat();
    }
}
function praat_selection(id)  // RF20040126
{
    document.applets[0].cmd_praat_selection(id);
}
function praat_selection(from, to)  // RF20081121
{
    document.applets[0].cmd_praat_selection(from, to);
}
function praat_grid_selection(turn, from, to)  // RF20090327
{
    editingGrid = document.applets[0].cmd_praat_sound_and_grid(turn, from, to);
    return (editingGrid != null);
}
function praat_grid_selection_zoom(turn, from, to, zfrom, zto)  // RF20101220
{
    editingGrid = document.applets[0].cmd_praat_sound_and_grid_and_zoom(turn, from, to, zfrom, zto);
    return (editingGrid != null);
}
function praat_import_last_grid()  // RF20091124
{
    document.applets[0].cmd_praat_save_grid(editingGrid);
}
function repeat()  // RF20031222
{
    document.applets[0].cmd_repeat();
}
function stopit() 
{
    document.applets[0].cmd_stop();
}
function playOne(id) 
{
    lastId = id;
    // unhighlight everything so far highlighted
    for (i in aTimeout) if (aTimeout[i] != null) endplay(i);
    // play it
    if (document.applets[0].cmd_isID(id)) 
    {
	reponse = document.applets[0].cmd_playS(id);
    }
}

function playFrom(id) 
{
    lastId = id;
    if (!document.applets[0].isActive()) 
    {
	alert('Please wait until the applet is active.');
    } 
    else 
    {
	// unhighlight everything so far highlighted
	for (i in aTimeout) if (aTimeout[i] != null) endplay(i);
	if (document.applets[0].cmd_isID(id)) 
	{
	    reponse = document.applets[0].cmd_playFrom(id);
	}
    }
}

function playFromLast() 
{
    var defaultId = lastId;
    if (defaultId == "") defaultId = document.applets[0].cmd_firstS();
    // unhighlight everything so far highlighted
    for (i in aTimeout) if (aTimeout[i] != null) endplay(i);
    playFrom(defaultId);
}


// send messages from the applet to the browser
function startplay(id) 
{
    // unhighlight everything so far highlighted
    for (i in aTimeout) if (aTimeout[i] != null) endplay(i);
    highlight(true, id);
}
function endplay(id) 
{
    highlight(false, id);
}
function stopplay() 
{
    for (i in aTimeout) if (aTimeout[i] != null) endplay(i);
}
function highlight(bHighlight, id) 
{
    var theItem = document.getElementById(id);
    if (theItem)
    {
	// whatever it's currently doing, stop it
	if (aTimeout[id] != null) window.clearTimeout(aTimeout[id]);

	if (bHighlight) 
	{
	    aTimeout[id] = window.setTimeout("shade('"+id+"', -6);", 10);
	    
	    var scrolledBy = window.pageYOffset;
	    if (scrolledBy == undefined) scrolledBy = document.body.scrollTop;
	    var windowHeight = window.innerHeight;
	    if (windowHeight == undefined) windowHeight = document.body.clientHeight;
	    var theItemTop = getAbsolutePosition(theItem).y
	    // if the item isn't in view
	    if (theItemTop + 150 > scrolledBy + windowHeight
		|| theItemTop < scrolledBy)
	    {
		// put it in the middle of the window
		window.scrollTo(0, theItemTop - windowHeight/2 + 150); // TODO animate a smooth scroll
	    }
	} 
	else 
	{
	    aTimeout[id] = window.setTimeout("shade('"+id+"', 3);", 10);
        }
    }
}
// RF20030425
function errHandler(message)
{
    if (message == "NoPlayerException")
    {
	alert(message + "\nThe audio file is probably not accesssible.\nHave you inserted the correct CD?\nClick Refresh to retry.");
    }
    else if (message.match(/http:\/\/[^ ]+/))
    {
	alert(message);
	window.open(message.match(/http:\/\/[^ ]+/)[0]);
    }
    else
    {
	alert(message);
    }
}
function RealizeCompleteEvent(message)
{
    //alert("RealizeCompleteEvent " + message);
}
var aTimeout = new Array();
var aShade = new Array();
var iShadeMin = 192;
function shade(id, fadeInc)
{
    var div = document.getElementById(id);
    if (aShade[id] == null) aShade[id] = 256;
    aShade[id] += fadeInc;
        
    if (aShade[id] >= 256)
    {
	div.style.background = 'transparent';
	aTimeout[id] = null;
    }
    else
    {
	var hex = aShade[id].toString(16);
	if (hex.length == 1) hex = "0" + hex;
	div.style.background = '#' + hex + hex + hex;
	if (aShade[id] > iShadeMin)
	{
	    aTimeout[id] = window.setTimeout("shade('"+id+"', "+fadeInc+");", 10);
	}
    }
}