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Small JSHint fixes #3

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Small JSHint fixes #3

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96a4d4c
Small JSHint fixes
Sep 27, 2015
c94104c
Changes after getting feedback
Sep 27, 2015
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93 changes: 48 additions & 45 deletions loader.js
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Original file line number Diff line number Diff line change
Expand Up @@ -26,25 +26,24 @@ var Module = null;
}

function img(src) {
var img = new Image();
img.src = src;
return img;
var _img = new Image();
_img.src = src;
return _img;
}

// yea, this is a hack
if (/archive\.org$/.test(document.location.hostname)) {
var images = { ia: img("/images/ialogo.png"),
mame: img("/images/mame.png"),
mess: img("/images/mess.png"),
dosbox: img("/images/dosbox.png")
};
} else {
images = { ia: img("other_logos/ia-logo-150x150.png"),
mame: img("other_logos/mame.png"),
mess: img("other_logos/mess.png"),
dosbox: img("other_logos/dosbox.png")
};
}
var images = (/archive\.org$/.test(document.location.hostname)) ? {
ia: img("/images/ialogo.png"),
mame: img("/images/mame.png"),
mess: img("/images/mess.png"),
dosbox: img("/images/dosbox.png")
}
: {
ia: img("other_logos/ia-logo-150x150.png"),
mame: img("other_logos/mame.png"),
mess: img("other_logos/mess.png"),
dosbox: img("other_logos/dosbox.png")
};

function updateLogo() {
if (emulator_logo) {
Expand All @@ -57,7 +56,7 @@ var Module = null;
if (!audio_ctx) {
return false;
}
var sample = new audio_ctx;
var sample = new audio_ctx();
return sample.sampleRate.toString();
}());

Expand Down Expand Up @@ -97,7 +96,7 @@ var Module = null;
modulecfg = JSON.parse(data);
var mame = modulecfg &&
'arcade' in modulecfg &&
parseInt(modulecfg['arcade'], 10);
parseInt(modulecfg.arcade, 10);
var get_files;

if (module && module.indexOf("dosbox") === 0) {
Expand All @@ -120,7 +119,7 @@ var Module = null;
throw new Error("Unknown module type "+ module +"; cannot configure the emulator.");
}

var nr = modulecfg['native_resolution'];
var nr = modulecfg.native_resolution;
config_args = [cfgr.emulatorJS(get_js_url(modulecfg.js_filename)),
cfgr.locateAdditionalEmulatorJS(locateAdditionalJS),
cfgr.fileSystemKey(game),
Expand Down Expand Up @@ -181,21 +180,23 @@ var Module = null;
// first get the urls
var urls = [], files = [];
var len = metadata.documentElement.childNodes.length, i;
var node;
for (i = 0; i < len; i++) {
var node = metadata.documentElement.childNodes[i];
node = metadata.documentElement.childNodes[i];
var m = node.nodeName.match(/^dosbox_drive_[a-zA-Z]$/);
if (m) {
urls.push(node);
}
}

// and a count, then fetch them in
var len = urls.length;
len = urls.length;
var node;
for (i = 0; i < len; i++) {
var node = urls[i],
drive = node.nodeName.split('_')[2],
title = 'Game File ('+ (i+1) +' of '+ (game ? len+1 : len) +')',
url = get_zip_url(node.textContent);
node = urls[i];
var drive = node.nodeName.split('_')[2],
title = 'Game File ('+ (i+1) +' of '+ (game ? len+1 : len) +')',
url = get_zip_url(node.textContent);
files.push(cfgr.mountZip(drive, cfgr.fetchFile(title, url)));
}

Expand All @@ -211,7 +212,7 @@ var Module = null;

function get_mess_files(cfgr, metadata, modulecfg) {
var files = [],
bios_files = modulecfg['bios_filenames'];
bios_files = modulecfg.bios_filenames;
bios_files.forEach(function (fname, i) {
if (fname) {
var title = "Bios File ("+ (i+1) +" of "+ bios_files.length +")";
Expand All @@ -223,15 +224,15 @@ var Module = null;
files.push(cfgr.mountFile('/'+ get_game_name(game),
cfgr.fetchFile("Game File",
get_zip_url(game))));
files.push(cfgr.mountFile('/'+ modulecfg['driver'] + '.cfg',
files.push(cfgr.mountFile('/'+ modulecfg.driver + '.cfg',
cfgr.fetchOptionalFile("CFG File",
get_other_emulator_config_url(module))));
return files;
}

function get_mame_files(cfgr, metadata, modulecfg) {
var files = [],
bios_files = modulecfg['bios_filenames'];
bios_files = modulecfg.bios_filenames;
bios_files.forEach(function (fname, i) {
if (fname) {
var title = "Bios File ("+ (i+1) +" of "+ bios_files.length +")";
Expand All @@ -243,7 +244,7 @@ var Module = null;
files.push(cfgr.mountFile('/'+ get_game_name(game),
cfgr.fetchFile("Game File",
get_zip_url(game))));
files.push(cfgr.mountFile('/'+ modulecfg['driver'] + '.cfg',
files.push(cfgr.mountFile('/'+ modulecfg.driver + '.cfg',
cfgr.fetchOptionalFile("CFG File",
get_other_emulator_config_url(module))));
return files;
Expand Down Expand Up @@ -365,11 +366,11 @@ var Module = null;
return { title: title, data: data };
};

function DosBoxLoader() {
var DosBoxLoader = function() {
var config = Array.prototype.reduce.call(arguments, extend);
config.emulator_arguments = build_dosbox_arguments(config.emulatorStart, config.files);
return config;
}
};
DosBoxLoader.__proto__ = BaseLoader;

DosBoxLoader.startExe = function (path) {
Expand Down Expand Up @@ -412,6 +413,7 @@ var Module = null;
config.needs_jsmess_webaudio = true;
return config;
}

JSMAMELoader.__proto__ = BaseLoader;

JSMAMELoader.driver = function (driver) {
Expand Down Expand Up @@ -871,7 +873,7 @@ var Module = null;
resolve();
}
};
};
}
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rather than mixing and matching.


var resizeCanvas = function (canvas, scale, resolution, aspectRatio) {
if (scale && resolution) {
Expand Down Expand Up @@ -1021,7 +1023,7 @@ var Module = null;
} else if ('onwebkitfullscreenchange' in document) {
document.addEventListener('webkitfullscreenchange', fullScreenChangeHandler);
}
};
}

this.requestFullScreen = function () {
Module.requestFullScreen(1, 0);
Expand Down Expand Up @@ -1054,14 +1056,14 @@ var Module = null;
}
});
}
};
}

/**
* misc
*/
function BFSOpenZip(loadedData) {
return new BrowserFS.FileSystem.ZipFS(loadedData);
};
}

// This is such a hack. We're not calling the BrowserFS api
// "correctly", so we have to synthesize these flags ourselves
Expand Down Expand Up @@ -1119,7 +1121,7 @@ var Module = null;
fs.readFileSync(dosboxConfPath, null, flag_r),
null, flag_w, 0x1a4);
}
};
}

function extend(a, b) {
if (a === null)
Expand Down Expand Up @@ -1170,7 +1172,7 @@ var Module = null;
gain_node = context.createGain();
gain_node.gain.value = 1.0;
gain_node.connect(context.destination);
};
}

function set_mastervolume (
// even though it's 'attenuation' the value is negative, so...
Expand All @@ -1193,7 +1195,7 @@ var Module = null;
gain_web_audio = +1;

gain_node.gain.value = gain_web_audio;
};
}

function update_audio_stream (
pBuffer, // pointer into emscripten heap. int16 samples
Expand Down Expand Up @@ -1236,7 +1238,7 @@ var Module = null;
pending_buffers.push(buffer);

tick();
};
}

function tick () {
// Note: this is the time the web audio mixer has mixed up to,
Expand Down Expand Up @@ -1266,15 +1268,15 @@ var Module = null;
: buffer_insert_point;

if (pending_buffers.length) {
for (var i = 0, l = pending_buffers.length; i < l; i++) {
var buffer = pending_buffers[i];
for (var _i = 0, _l = pending_buffers.length; _i < _l; _i++) {
var _buffer = pending_buffers[_i];
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This makes the warning go away, but is really ugly.

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Yeah, maybe it could use more descriptive variable names.


var source_node = context.createBufferSource();
source_node.buffer = buffer;
source_node.buffer = _buffer;
source_node.connect(gain_node);
source_node.start(insert_point);

insert_point += buffer.duration;
insert_point += _buffer.duration;
}

pending_buffers.length = 0;
Expand All @@ -1283,10 +1285,11 @@ var Module = null;
if (buffer_insert_point <= now)
buffer_insert_point = now;
}
};
}

function get_context() {
return context;
};
}

return {
set_mastervolume: set_mastervolume,
Expand Down