speedtrans/js/app.js

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JavaScript
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//init globals
//var seekBar;
var textArea;
var Video;
var filePath = false;
var videoListener;
var seekBar;
var globalUser;
var srtFilePath = undefined;
var videoPath = undefined;
var videoHash = undefined;
function adjustSize() {
var baseHeight = $(window).height() - 24 - 16;
$('#txt').height(baseHeight);
var baseWidth = $(window).width() - 400 - 64;
$('#txt').width(baseWidth);
}
Ox.load({
UI: {theme: 'oxlight'},
}, function() {
Ox.$body.show();
globalUser = new User();
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adjustSize();
$(document).keydown(function(e) {
if (!Video)
return;
//Esc
if (e.keyCode == 27) {
Video.togglePause();
if (!textArea.hasFocus) {
textArea.elem.focus();
}
e.preventDefault();
}
//The weird `~ key, currently in as a silly hack because Ranjana's Esc key does not work.
if (e.keyCode == 192) {
Video.togglePause();
e.preventDefault();
}
//Ins or TAB
if (e.keyCode == 45 || e.keyCode == 9) {
if (!textArea.isTc()) {
textArea.insertTc();
return false;
} else {
return false;
}
}
//Ctrl - Seek Back
if (e.keyCode == 17) {
var seekTime = parseInt(parseFloat($('#seekTime').val()) * 1000);
var currTime = Video.get();
var newTime = currTime - seekTime;
Video.set(newTime);
}
//Alt - Seek Fwd.
if (e.keyCode == 18) {
var seekTime = parseInt(parseFloat($('#seekTime').val()) * 1000);
var currTime = Video.get();
var newTime = currTime + seekTime;
Video.set(newTime);
}
//Space - togglePause if no focus on TA
if (e.keyCode == 32 && textArea.hasFocus == false) {
Video.togglePause();
}
//PageUp - volume Up:
if (e.keyCode == 33) {
Video.volUp();
return false;
}
if (e.keyCode == 34) {
Video.volDown();
return false;
}
});
$(window).bind('resize', adjustSize);
var mainMenu = new Ox.MainMenu({
extras: [],
menus: [
{
id: "speedtrans",
title: "SpeedTrans",
items: [
{ id: "about", title: "About" },
{},
{ id: "contact", title: "Contact", disabled: true}
]
},
{
id: "open",
title: "Open",
items: [
{ id: "load_video", title: "Video", file: {width: 192}},
{ id: "load_srt", title: "Open SRT File", file: {width: 192}},
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]
},
{
id: "save",
title: "Save",
items: [
{ id: "save_srt", title: "Save SRT"},
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]
},
{
id: "edit",
title: "Edit",
items: [
{ id: "preferences", title: "Preferences" }
]
},
{
id: "tools",
title: "Tools",
items: [
{ id: "add_time", title: "Add / Subtract time and export", disabled: true },
{ id: "export_encore", title: "Export Adobe Encore Subtitle Format" },
{ id: "export_html", title: "Export HTML" },
{},
{ id: "load_cuts", title: "Load cuts from pan.do/ra", disabled: false }
]
},
{
id: "upload",
title: "Upload",
items: [
{ id: "upload_padma", title: "Upload Transcript to Pad.ma", disabled: true }
]
},
{
id: "help",
title: "Help",
items: [
{ id: "shortcuts", title: "Keyboard Shortcuts" }
]
}
],
size: "large"
})
.css({'position': 'fixed', 'top': '0px', 'left': '0px', 'right': '0px', 'height': '20px'})
.appendTo(Ox.$body)
.bindEvent({
click: function(data) {
if (data.id == 'load_video') {
saveTxt();
videoPath = undefined;
videoHash = undefined;
srtFilePath = undefined;
textArea.elem.val('');
var path = data.files[0].name;
if ($.inArray(getFileNameExt(path.toLowerCase()), [
'oga', 'ogg', 'ogv', 'ogx', 'wav', 'webm', 'mp4', 'm4v'
]) != -1) {
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loadVideo(data.files[0]);
} else {
alert('can only open video formats supported by browser');
}
} else if(data.id == 'about') {
var html = Ox.tmpl("dialog_about", {});
stDialog("About", html);
} else if(data.id == 'preferences') {
var prefs = globalUser.get_prefs(["fontSize", "theme", "autosave"]);
var html = Ox.tmpl("dialog_preferences", {});
stDialog("Preferences", html);
$('.pref_select').each(function() {
var that = this;
var pref = $(this).attr("data-pref");
var prefVal = prefs[pref];
$(this).children('option').each(function() {
if ($(this).val() == prefVal) {
$(this).attr("selected", "selected");
}
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});
});
$('.pref_select').change(function() {
var key = $(this).attr("data-pref");
var val = $(this).val();
globalUser.set_pref(key, val);
});
/*
$('#pref_fontSize > option').each(function() {
if ($(this).val() == prefs.fontSize) {
$(this).attr("selected", "selected");
}
});
$('#pref_theme > option').each(function() {
if ($(this).val() == prefs.theme) {
$(this).attr("selected", "selected");
}
});
*/
} else if(data.id == 'shortcuts') {
var html = Ox.tmpl("dialog_shortcuts", {});
stDialog("Keyboard Shortcuts", html);
} else if(data.id == 'save_srt') {
var content = textArea.toSrt();
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saveContent(content, 'text/plain', getFileNameSansExt(videoPath) + '.srt');
} else if(data.id == 'load_srt') {
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loadSrt(data.files[0]);
} else if(data.id == 'export_encore') {
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var content = textArea.toSrt("enc");
saveContent(content, 'text/plain', getFileNameSansExt(videoPath) + '.enc.txt');
} else if(data.id == 'export_html') {
var content = textArea.toHTML();
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saveContent(content, 'text/html', getFileNameSansExt(videoPath) + '.html');
} else if(data.id == 'load_cuts') {
var html = Ox.tmpl("dialog_load_cuts");
var loadDialog = Ox.Dialog({
buttons: [
Ox.Button({
title: "Cancel"
}).bindEvent({
click: function() {
loadDialog.close()
}
}),
Ox.Button({
title: "Load Cuts"
}).bindEvent({
click: function() {
var url = loadDialog.find('input')[0].value.trim();
var match = url.match(/(.*)\/([A-Z]+)$/);
if (match) {
loadCuts(match[1] + '/api/', match[2]);
}
loadDialog.close();
}
}),
],
content: Ox.Element().append(html)
}).open();
}
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}
});
textArea = new TextArea("txt");
textArea.elem.val('');
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globalUser.init();
//autosave every 1 minute.
window.autosaveInterval = setInterval(function() {
if (typeof(videoHash) !== 'undefined') {
saveTxt();
}
}, 60000);
});
function loadTxt() {
var txt = globalUser.get_txt(videoHash);
//console.log('loadTxt', videoHash, txt.length);
textArea.elem.val(txt);
}
function saveTxt() {
var content = textArea.toSrt();
var txt = textArea.elem.val();
//console.log('saveTxt', videoHash, txt.length);
globalUser.set_txt(videoHash, txt);
}
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function saveContent(content, type, path) {
var uriContent = 'data:'+type+';base64,' + btoa(content);
var pom = document.createElement('a');
pom.setAttribute('href', content);
pom.setAttribute('download', path);
if (document.createEvent) {
var event = document.createEvent('MouseEvents');
event.initEvent('click', true, true);
pom.dispatchEvent(event);
} else {
pom.click();
}
}
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function stDialog(titleTxt, text) {
var that = Ox.Dialog({
buttons: [
Ox.Button({
title: "Close"
}).bindEvent({
click: function() {
that.close();
}
})
],
title: titleTxt,
content: Ox.Element().css({padding: '16px'}).append(text)
}).open()
return that;
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}
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function loadVideo(videoFile) {
Ox.oshash(videoFile, function(hash) {
videoHash = hash;
var storageKey = 'txt_' + videoHash;
if (storageKey in storage) {
loadTxt();
}
});
var videoUrl = URL.createObjectURL(videoFile);
videoPath = videoFile.name;
$('#video').attr("src", videoUrl);
$('#filepath').text(videoFile.path);
document.getElementById("video").load();
$('#video').one("loadedmetadata", function() {
Video = new VideoPlayer();
Video.init("video");
Video.setDuration(Video.player.duration);
$('#insertTc').click(textArea.insertTc);
videoListener = setInterval(Video.listener, 250);
});
};
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/*
Functions to generate preview while encoding: see http://firefogg.org/examples
*/
//intialize interval to update preview and add event liseners.
//any previous listeners and intervals are cleared
var previewI=null;
function seekToEnd() {
// console.log("seeking to end of video");
var v = document.getElementById('previewVideo');
v.currentTime = v.duration-0.4;
}
//callback function render frame into canvas after seeking
function getFrame() {
var v = document.getElementById('previewVideo');
var canvas = document.getElementById('previewCanvas');
canvas.width = 400;
canvas.height = canvas.width * v.videoHeight/v.videoWidth;
var ctx = canvas.getContext("2d");
ctx.drawImage(v, 0, 0, canvas.width, canvas.height);
}
/*
End Preview functions
*/
$(window).unload(function() {
console.log('unload');
if (typeof filePath != 'undefined' && typeof srtFilePath != 'undefined') {
globalUser.set_prefs({
'recentVideo': $('#video').attr("src").replace("file://", ""),
'recentSrt': srtFilePath
});
}
saveTxt();
});