webui-aria2/js/ctrls/download.js
Nils Maier 38a413e95b Performance improvements
* Pre-compute name, formatted sizes and speeds.
* Handle name edge-cases such as no-path and no-uris better.
* Unroll getCtx.
* Improve performance of mergeMap.
* Delay the search filter.

As indicated by Chrome/Gecko profilers.
2014-02-28 13:30:44 +01:00

396 lines
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angular
.module('webui.ctrls.download', [
'webui.services.utils', 'webui.services.rpc', 'webui.services.alerts',
'webui.services.settings', 'webui.services.modals'
])
.controller('DownloadCtrl', [
'$scope', '$rpc', '$utils', '$alerts', '$modals',
'$fileSettings', '$activeInclude', '$waitingExclude',
// for document title
'$window',
function(
scope, rpc, utils, alerts, modals,
fsettings, activeInclude, waitingExclude, window
) {
var re_slashes = /\\/g;
var slash = "/";
scope.active = [], scope.waiting = [], scope.stopped = [];
scope.gstats = {};
// pause the download
// d: the download ctx
scope.pause = function(d) {
rpc.once('forcePause', [d.gid]);
}
// resume the download
// d: the download ctx
scope.resume = function(d) {
rpc.once('unpause', [d.gid]);
}
// remove the download,
// put it in stopped list if active,
// otherwise permanantly remove it
// d: the download ctx
scope.remove = function(d, cb) {
var method = 'remove';
if (scope.getType(d) == 'stopped')
method = 'removeDownloadResult';
rpc.once(method, [d.gid], cb);
// also remove it from client cache assuming that it will be deleted in the aria2 list,
// but we could be wrong but the cache will update in next global update
var downloads = [scope.active, scope.waiting, scope.stopped], ind = -1, i;
for (i = 0; i < downloads.length; i++) {
ind = downloads[i].indexOf(d);
if (ind != -1) break;
}
if (ind == -1) {
return;
}
downloads[i].splice(ind, 1);
}
scope.restart = function(d) {
var uris =
_.chain(d.files).map(function(f) { return f.uris })
.filter(function(uris) { return uris.length })
.map(function(uris) {
return _.chain(uris)
.map(function(u) { return u.uri })
.uniq().value();
}).value();
if (uris.length > 0) {
scope.remove(d, function() {
rpc.once('addUri', uris, angular.noop, true);
});
}
}
// start filling in the model of active,
// waiting and stopped download
rpc.subscribe('tellActive', [], function(data) {
utils.mergeMap(data[0], scope.active, scope.getCtx);
});
rpc.subscribe('tellWaiting', [0, 1000], function(data) {
utils.mergeMap(data[0], scope.waiting, scope.getCtx);
});
rpc.subscribe('tellStopped', [0, 1000], function(data) {
utils.mergeMap(data[0], scope.stopped, scope.getCtx);
});
rpc.subscribe('getGlobalStat', [], function(data) {
scope.gstats = data[0];
window.document.title = utils.getTitle(scope.gstats);
});
rpc.once('getVersion', [], function(data) {
scope.miscellaneous = data[0];
});
// total number of downloads, updates dynamically as downloads are
// stored in scope
scope.totalDownloads = 0;
// download search filter
scope.downloadFilter = "";
scope.downloadFilterCommitted = "";
scope.onDownloadFilter = function() {
if (scope.downloadFilterTimer) {
clearTimeout(scope.downloadFilterTimer);
}
scope.downloadFilterTimer = setTimeout(function() {
delete scope.downloadFilterTimer;
if (scope.downloadFilterCommitted !== scope.downloadFilter) {
scope.downloadFilterCommitted = scope.downloadFilter;
scope.$digest();
}
}, 500);
};
scope.filterDownloads = function(downloads) {
if (!scope.downloadFilterCommitted) {
return downloads;
}
var filter = scope.downloadFilterCommitted;
return _.filter(downloads, function(d) {
if (!d.files.length) return true;
return _.filter(d.files, function(f) {
return f.path.toLowerCase().indexOf(filter.toLowerCase()) != -1;
// return f.path.search(filter) != -1;
}).length;
});
};
// max downloads shown in one page
scope.pageSize = 10;
// current displayed page
scope.currentPage = 1;
scope.pageControlRadius = 3;
// total maximum pages
scope.totalPages = 0;
// total amount of downloads returned by aria2
scope.totalAria2Downloads = function() {
return scope.active.length
+ scope.waiting.length
+ scope.stopped.length;
}
// actual downloads used by the view
scope.getDownloads = function() {
var downloads =
scope.filterDownloads(
scope.active.concat( scope.waiting ).concat( scope.stopped )
)
;
scope.totalDownloads = downloads.length;
scope.totalPages = Math.ceil(scope.totalDownloads / scope.pageSize) || 1;
// fix the bug when downloads are deleted until no left on a specific page
if (scope.currentPage > scope.totalPages)
scope.currentPage = scope.totalPages;
downloads = downloads.slice( (scope.currentPage - 1) * scope.pageSize );
downloads.splice( scope.pageSize );
return downloads;
}
scope.setPage = function(pageNumber) {
scope.currentPage = pageNumber;
scope.currentPage = Math.max(Math.min(scope.currentPage, scope.totalPages), 1);
return false;
};
scope.advancePage = function(num) {
return scope.setPage(scope.currentPage + num);
};
// get the pages to be displayed
scope.getPages = function() {
var minPage = scope.currentPage - scope.pageControlRadius;
if (minPage < 1) minPage = 1;
var maxPage = scope.currentPage + scope.pageControlRadius;
if (maxPage > scope.totalPages)
maxPage = scope.totalPages;
return _.range(minPage, maxPage + 1);
}
// convert the donwload form aria2 to once used by the view,
// minor additions of some fields and checks
scope.getCtx = function(d, ctx) {
if (!ctx) {
ctx = {
dir: d.dir,
status: d.status,
gid: d.gid,
numPieces: d.numPieces,
connections: d.connections,
bitfield: d.bitfield,
totalLength: d.totalLength,
fmtTotalLength: utils.fmtsize(d.totalLength),
completedLength: d.completedLength,
fmtCompletedLength: utils.fmtsize(d.completedLength),
uploadLength: d.uploadLength,
fmtUploadLength: utils.fmtsize(d.uploadLength),
pieceLength: d.pieceLength,
fmtPieceLength: utils.fmtsize(d.pieceLength),
downloadSpeed: d.downloadSpeed,
fmtDownloadSpeed: utils.fmtspeed(d.downloadSpeed),
uploadSpeed: d.uploadSpeed,
fmtUploadSpeed: utils.fmtspeed(d.uploadSpeed),
files: []
};
}
else {
ctx.dir = d.dir;
ctx.status = d.status;
ctx.gid = d.gid;
ctx.numPieces = d.numPieces;
ctx.connections = d.connections;
ctx.bitfield = d.bitfield;
if (ctx.totalLength !== d.totalLength) {
ctx.totalLength = d.totalLength;
ctx.fmtTotalLength = utils.fmtsize(d.totalLength);
}
if (ctx.completedLength !== d.completedLength) {
ctx.completedLength = d.completedLength;
ctx.fmtCompletedLength = utils.fmtsize(d.completedLength);
}
if (ctx.uploadLength !== d.uploadength) {
ctx.uploadLength = d.uploadlength;
ctx.fmtUploadLength = utils.fmtsize(d.uploadLength);
}
if (ctx.pieceLength !== d.pieceLength) {
ctx.pieceLength = d.pieceLength;
ctx.fmtPieceLength = utils.fmtsize(d.pieceLength);
}
if (ctx.downloadSpeed !== d.downloadSpeed) {
ctx.downloadSpeed = d.downloadSpeed;
ctx.fmtDownloadSpeed = utils.fmtspeed(d.downloadSpeed);
}
if (ctx.uploadSpeed !== d.uploadSpeed) {
ctx.uploadSpeed = d.uploadSpeed;
ctx.fmtUploadSpeed = utils.fmtspeed(d.uploadSpeed);
}
}
var dlName;
var files = d.files;
if (files) {
dlName = files[0].path || d.files[0].uris[0].uri;
var cfiles = ctx.files;
for (var i = 0; i < files.length; ++i) {
var cfile = cfiles[i] || (cfiles[i] = {});
var file = files[i];
if (file.path !== cfile.path) {
cfile.path = file.path;
cfile.length = file.length;
cfile.fmtLength = utils.fmtsize(file.length);
cfile.relpath = file.path.replace(re_slashes, slash);
if (!cfile.relpath) {
cfile.relpath = (file.uris && file.uris[0] && file.uris[0].uri) || "Unknown";
}
else if (!cfile.relpath.startsWith("[")) { // METADATA
cfile.relpath = cfile.relpath.substr(ctx.dir.length + 1);
}
}
}
cfiles.length = files.length;
}
else {
delete ctx.files;
}
var btName;
if (d.bittorrent) {
btName = d.bittorrent.info && d.bittorrent.info.name;
ctx.bittorrent = true;
}
else {
delete ctx.bittorrent;
}
ctx.name = btName || utils.getFileName(dlName) || dlName || "Unknown";
// collapse the download details initially
if (ctx.collapsed === undefined) {
ctx.collapsed = true;
}
return ctx;
};
scope.canRestart = function(d) {
if (['active', 'paused'].indexOf(d.status) == -1
&& !d.bittorrent)
return true;
return false;
};
scope.hasStatus = function hasStatus(d, status) {
if (_.isArray(status)) {
if (status.length == 0) return false;
return hasStatus(d, status[0]) || hasStatus(d, status.slice(1));
}
else {
return d.status == status;
}
};
// get time left for the download with
// current download speed,
// could be smarter by different heuristics
scope.getEta = function(d) {
return (d.totalLength-d.completedLength) / d.downloadSpeed;
}
scope.getProgressClass = function(d) {
switch (d.status) {
case "paused":
return "progress-info";
case "error":
return "progress-danger";
case "removed":
return "progress-warning";
case "active":
return "progress-active";
case "complete":
return "progress-success";
default:
return "";
}
};
// gets the progress in percentages
scope.getProgress = function(d) {
var percentage = (d.completedLength / d.totalLength)*100 || 0;
percentage = percentage.toFixed(2);
if(!percentage) percentage = 0;
return percentage;
};
// gets the type for the download as classified by the aria2 rpc calls
scope.getType = function(d) {
var type = d.status;
if (type == "paused") type = "waiting";
if (["error", "removed", "complete"].indexOf(type) != -1)
type = "stopped";
return type;
};
scope.showSettings = function(d) {
var type = scope.getType(d)
, settings = {};
rpc.once('getOption', [d.gid], function(data) {
var vals = data[0];
for (var i in fsettings) {
if (type == 'active' && activeInclude.indexOf(i) == -1) continue;
if (type == 'waiting' && waitingExclude.indexOf(i) != -1) continue;
settings[i] = fsettings[i];
settings[i].val = vals[i] || settings[i].val;
}
modals.invoke('settings', settings, scope.name + ' settings', function(settings) {
var sets = {};
for (var i in settings) { sets[i] = settings[i].val };
rpc.once('changeOption', [d.gid, sets]);
});
});
return false;
}
}]);