590 lines
17 KiB
JavaScript
590 lines
17 KiB
JavaScript
/*
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* Copyright © Dave Perrett and Malcolm Jarvis
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* This code is licensed under the GPL version 2.
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* For details, see http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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*
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* Class Torrent
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*/
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function Torrent(controller,data) {
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this.initialize(controller,data);
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}
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// Constants
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Torrent._StatusWaitingToCheck = 1;
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Torrent._StatusChecking = 2;
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Torrent._StatusDownloading = 4;
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Torrent._StatusSeeding = 8;
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Torrent._StatusPaused = 16;
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Torrent._InfiniteTimeRemaining = 215784000; // 999 Hours - may as well be infinite
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Torrent.prototype =
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{
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/*
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* Constructor
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*/
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initialize: function(controller,data)
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{
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// Create a new <li> element
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var element = $('<li/>');
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element.addClass('torrent');
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element[0].id = 'torrent_' + data.id;
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element._torrent = this;
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this._element = element;
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this._controller = controller;
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controller._rows.push( element );
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// Create the 'name' <div>
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var e = $('<div/>');
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e.addClass('torrent_name');
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element.append( e );
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element._name_container = e;
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// Create the 'progress details' <div>
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e = $('<div/>');
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e.addClass('torrent_progress_details');
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element.append(e);
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element._progress_details_container = e;
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// Create the 'in progress' bar
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e = $('<div/>');
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e.addClass('torrent_progress_bar incomplete');
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e.css('width', '0%');
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element.append( e );
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element._progress_complete_container = e;
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// Create the 'incomplete' bar (initially hidden)
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e = $('<div/>');
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e.addClass('torrent_progress_bar incomplete');
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e.hide();
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element.append( e );
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element._progress_incomplete_container = e;
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// Add the pause/resume button - don't specify the
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// image or alt text until the 'refresh()' function
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// (depends on torrent state)
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var image = $('<div/>');
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image.addClass('torrent_pause');
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e = $('<a/>');
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e.append( image );
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element.append( e );
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element._pause_resume_button_image = image;
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element._pause_resume_button = e;
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if (!iPhone) e.bind('click', {element: element}, this.clickPauseResumeButton);
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// Create the 'peer details' <div>
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e = $('<div/>');
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e.addClass('torrent_peer_details');
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element.append( e );
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element._peer_details_container = e;
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// Set the torrent click observer
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element.bind('click', {element: element}, this.clickTorrent);
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if (!iPhone) element.bind('contextmenu', {element: element}, this.rightClickTorrent);
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// Safari hack - first torrent needs to be moved down for some reason. Seems to be ok when
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// using <li>'s in straight html, but adding through the DOM gets a bit odd.
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if ($.browser.safari)
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this._element.css('margin-top', '7px');
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// insert the element
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$('#torrent_list').append(this._element);
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// Update all the labels etc
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this.refresh(data);
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},
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/*--------------------------------------------
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*
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* S E T T E R S / G E T T E R S
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*
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*--------------------------------------------*/
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/* Return the DOM element for this torrent (a <LI> element) */
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element: function() {
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return this._element;
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},
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setElement: function( element ) {
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this._element = element;
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element._torrent = this;
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this.refreshHTML( );
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},
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activity: function() { return this._download_speed + this._upload_speed; },
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comment: function() { return this._comment; },
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completed: function() { return this._completed; },
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creator: function() { return this._creator; },
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dateAdded: function() { return this._date; },
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downloadSpeed: function() { return this._download_speed; },
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downloadTotal: function() { return this._download_total; },
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errorMessage: function() { return this._error_message; },
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hash: function() { return this._hashString; },
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id: function() { return this._id; },
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isActive: function() { return this.state() != Torrent._StatusPaused; },
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isDownloading: function() { return this.state() == Torrent._StatusDownloading; },
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isSeeding: function() { return this.state() == Torrent._StatusSeeding; },
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name: function() { return this._name; },
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peersSendingToUs: function() { return this._peers_sending_to_us; },
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peersGettingFromUs: function() { return this._peers_getting_from_us; },
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getPercentDone: function() {
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if( !this._sizeWhenDone ) return 1.0;
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if( !this._leftUntilDone ) return 1.0;
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return ( this._sizeWhenDone - this._leftUntilDone )
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/ this._sizeWhenDone;
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},
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getPercentDoneStr: function() {
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return Math.ratio( 100 * ( this._sizeWhenDone - this._leftUntilDone ),
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this._sizeWhenDone );
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},
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size: function() { return this._size; },
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state: function() { return this._state; },
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stateStr: function() {
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switch( this.state() ) {
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case Torrent._StatusSeeding: return 'Seeding';
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case Torrent._StatusDownloading: return 'Downloading';
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case Torrent._StatusPaused: return 'Paused';
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case Torrent._StatusChecking: return 'Verifying local data';
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case Torrent._StatusWaitingToCheck: return 'Waiting to verify';
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default: return 'error';
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}
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},
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swarmSpeed: function() { return this._swarm_speed; },
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totalLeechers: function() { return this._total_leechers; },
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totalSeeders: function() { return this._total_seeders; },
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uploadSpeed: function() { return this._upload_speed; },
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uploadTotal: function() { return this._upload_total; },
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/*--------------------------------------------
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*
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* E V E N T F U N C T I O N S
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*
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*--------------------------------------------*/
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/*
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* Process a right-click event on this torrent
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*/
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rightClickTorrent: function(event)
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{
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// don't stop the event! need it for the right-click menu
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var t = event.data.element._torrent;
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if ( !t.isSelected( ) )
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t._controller.setSelectedTorrent( t );
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},
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/*
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* Process a click event on this torrent
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*/
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clickTorrent: function( event )
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{
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// Prevents click carrying to parent element
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// which deselects all on click
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event.stopPropagation();
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var torrent = event.data.element._torrent;
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// 'Apple' button emulation on PC :
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// Need settable meta-key and ctrl-key variables for mac emulation
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var meta_key = event.metaKey
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var ctrl_key = event.ctrlKey
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if (event.ctrlKey && navigator.appVersion.toLowerCase().indexOf("mac") == -1) {
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meta_key = true;
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ctrl_key = false;
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}
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// Shift-Click - Highlight a range between this torrent and the last-clicked torrent
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if (iPhone) {
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torrent._controller.setSelectedTorrent( torrent, true );
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} else if (event.shiftKey) {
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torrent._controller.selectRange( torrent, true );
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// Need to deselect any selected text
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window.focus();
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// Apple-Click, not selected
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} else if (!torrent.isSelected() && meta_key) {
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torrent._controller.selectTorrent( torrent, true );
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// Regular Click, not selected
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} else if (!torrent.isSelected()) {
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torrent._controller.setSelectedTorrent( torrent, true );
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// Apple-Click, selected
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} else if (torrent.isSelected() && meta_key) {
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torrent._controller.deselectTorrent( torrent, true );
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// Regular Click, selected
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} else if (torrent.isSelected()) {
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torrent._controller.setSelectedTorrent( torrent, true );
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}
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torrent._controller.setLastTorrentClicked(torrent);
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},
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/*
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* Process a click event on the pause/resume button
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*/
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clickPauseResumeButton: function( event )
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{
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// prevent click event resulting in selection of torrent
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event.stopPropagation();
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// either stop or start the torrent
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var torrent = event.data.element._torrent;
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if( torrent.isActive( ) )
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torrent._controller.stopTorrent( torrent );
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else
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torrent._controller.startTorrent( torrent );
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},
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/*--------------------------------------------
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*
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* I N T E R F A C E F U N C T I O N S
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*
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*--------------------------------------------*/
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refresh: function(data) {
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this.refreshData( data );
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this.refreshHTML( );
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},
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/*
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* Refresh display
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*/
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refreshData: function(data)
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{
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// These variables never change after the inital load
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if (data.isPrivate) this._is_private = data.isPrivate;
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if (data.hashString) this._hashString = data.hashString;
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if (data.addedDate) this._date = data.addedDate;
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if (data.totalSize) this._size = data.totalSize;
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if (data.announceURL) this._tracker = data.announceURL;
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if (data.comment) this._comment = data.comment;
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if (data.creator) this._creator = data.creator;
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if (data.dateCreated) this._creator_date = data.dateCreated;
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if (data.leftUntilDone) this._leftUntilDone = data.leftUntilDone;
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if (data.sizeWhenDone) this._sizeWhenDone = data.sizeWhenDone;
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if (data.path) this._torrent_file = data.path;//FIXME
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if (data.name) {
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this._name = data.name;
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this._name_lc = this._name.toLowerCase( );
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}
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// Set the regularly-changing torrent variables
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this._id = data.id;
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this._completed = data.haveUnchecked + data.haveValid;
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this._verified = data.haveValid;
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this._download_total = data.downloadedEver;
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this._upload_total = data.uploadedEver;
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this._download_speed = data.rateDownload;
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this._upload_speed = data.rateUpload;
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this._peers_connected = data.peersConnected;
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this._peers_getting_from_us = data.peersGettingFromUs;
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this._peers_sending_to_us = data.peersSendingToUs;
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this._error = data.error;
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this._error_message = data.errorString;
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this._eta = data.eta;
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this._swarm_speed = data.swarmSpeed;
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this._total_leechers = Math.max( 0, data.leechers );
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this._total_seeders = Math.max( 0, data.seeders );
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this._state = data.status;
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},
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refreshHTML: function()
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{
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var progress_details;
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var peer_details;
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var root = this._element;
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var MaxBarWidth = 100; // reduce this to make the progress bar shorter (%)
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setInnerHTML( root._name_container[0], this._name );
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// Add the progress bar
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var notDone = this._leftUntilDone > 0;
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// Fix for situation
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// when a verifying/downloading torrent gets state seeding
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if( this._state == Torrent._StatusSeeding )
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notDone = false ;
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if( notDone )
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{
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var eta = '';
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if( this.isActive( ) )
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{
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eta = '-';
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if (this._eta < 0 || this._eta >= Torrent._InfiniteTimeRemaining )
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eta += 'remaining time unknown';
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else
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eta += Math.formatSeconds(this._eta) + ' remaining';
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}
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// Create the 'progress details' label
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// Eg: '101 MB of 631 MB (16.02%) - 2 hr remaining'
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progress_details = Math.formatBytes( this._sizeWhenDone - this._leftUntilDone )
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+ ' of '
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+ Math.formatBytes( this._sizeWhenDone )
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+ ' ('
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+ this.getPercentDoneStr()
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+ '%)'
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+ eta;
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// Figure out the percent completed
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var css_completed_width = Math.floor( this.getPercentDone() * MaxBarWidth );
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// Update the 'in progress' bar
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var class_name = this.isActive() ? 'in_progress' : 'incomplete_stopped';
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var e = root._progress_complete_container;
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e.removeClass( );
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e.addClass( 'torrent_progress_bar' );
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e.addClass( class_name );
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e.css( 'width', css_completed_width + '%' );
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if(css_completed_width == 0) { e.addClass( 'empty' ); }
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// Update the 'incomplete' bar
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e = root._progress_incomplete_container;
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if( !e.is('.incomplete')) {
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e.removeClass();
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e.addClass('torrent_progress_bar in_progress');
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}
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e.css('width', (MaxBarWidth - css_completed_width) + '%');
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e.show();
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// Create the 'peer details' label
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// Eg: 'Downloading from 36 of 40 peers - DL: 60.2 KB/s UL: 4.3 KB/s'
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if( !this.isDownloading( ) )
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peer_details = this.stateStr( );
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else {
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peer_details = 'Downloading from '
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+ this.peersSendingToUs()
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+ ' of '
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+ this._peers_connected
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+ ' peers - DL: '
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+ Math.formatBytes(this._download_speed)
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+ '/s UL: '
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+ Math.formatBytes(this._upload_speed)
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+ '/s';
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}
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}
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else
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{
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// Update the 'in progress' bar
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var class_name = (this.isActive()) ? 'complete' : 'complete_stopped';
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var e = root._progress_complete_container;
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e.removeClass();
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e.addClass('torrent_progress_bar ' + class_name );
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// Create the 'progress details' label
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// Eg: '698.05 MB, uploaded 8.59 GB (Ratio: 12.3)'
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progress_details = Math.formatBytes( this._size )
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+ ', uploaded '
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+ Math.formatBytes( this._upload_total )
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+ ' (Ratio '
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+ Math.ratio( this._upload_total, this._download_total )
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+ ')';
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// Hide the 'incomplete' bar
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root._progress_incomplete_container.hide();
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// Set progress to maximum
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root._progress_complete_container.css('width', MaxBarWidth + '%');
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// Create the 'peer details' label
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// Eg: 'Seeding to 13 of 22 peers - UL: 36.2 KB/s'
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if( !this.isSeeding( ) )
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peer_details = this.stateStr( );
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else
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peer_details = 'Seeding to '
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+ this.peersGettingFromUs()
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+ ' of '
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+ this._peers_connected
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+ ' peers - UL: '
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+ Math.formatBytes(this._upload_speed)
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+ '/s';
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}
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// Update the progress details
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setInnerHTML( root._progress_details_container[0], progress_details );
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// Update the peer details and pause/resume button
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e = root._pause_resume_button_image[0];
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if ( this.state() == Torrent._StatusPaused ) {
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e.alt = 'Resume';
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e.className = "torrent_resume";
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} else {
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e.alt = 'Pause';
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e.className = "torrent_pause";
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}
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if( this._error_message &&
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this._error_message != '' &&
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this._error_message != 'other' ) {
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peer_details = this._error_message;
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}
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setInnerHTML( root._peer_details_container[0], peer_details );
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},
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/*
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* Return true if this torrent is selected
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*/
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isSelected: function() {
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var e = this.element( );
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return e && $.className.has( e[0], 'selected' );
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},
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/**
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* @param filter one of Prefs._Filter*
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* @param search substring to look for, or null
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* @return true if it passes the test, false if it fails
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*/
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test: function( filter, search )
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{
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var pass = false;
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switch( filter )
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{
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case Prefs._FilterSeeding:
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pass = this.isSeeding();
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break;
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case Prefs._FilterDownloading:
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pass = this.isDownloading();
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break;
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case Prefs._FilterPaused:
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pass = !this.isActive();
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break;
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default:
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pass = true;
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break;
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}
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if( !pass )
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return false;
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if( !search || !search.length )
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return pass;
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var pos = this._name_lc.indexOf( search.toLowerCase() );
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pass = pos != -1;
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return pass;
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}
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};
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/** Helper function for Torrent.sortTorrents(). */
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Torrent.compareById = function( a, b ) {
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return a.id() - b.id();
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};
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/** Helper function for sortTorrents(). */
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Torrent.compareByAge = function( a, b ) {
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return a.dateAdded() - b.dateAdded();
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};
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/** Helper function for sortTorrents(). */
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Torrent.compareByName = function( a, b ) {
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return a._name_lc.compareTo( b._name_lc );
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};
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/** Helper function for sortTorrents(). */
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Torrent.compareByTracker = function( a, b ) {
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return a._tracker.compareTo( b._tracker );
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};
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/** Helper function for sortTorrents(). */
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Torrent.compareByState = function( a, b ) {
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return a.state() - b.state();
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};
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/** Helper function for sortTorrents(). */
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Torrent.compareByActivity = function( a, b ) {
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return a.activity() - b.activity();
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};
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/** Helper function for sortTorrents(). */
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Torrent.compareByProgress = function( a, b ) {
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if( a.getPercentDone() !== b.getPercentDone() )
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return a.getPercentDone() - b.getPercentDone();
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var a_ratio = Math.ratio( a._upload_total, a._download_total );
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var b_ratio = Math.ratio( b._upload_total, b._download_total );
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return a_ratio - b_ratio;
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}
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/**
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* @param torrents an array of Torrent objects
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* @param sortMethod one of Prefs._SortBy*
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* @param sortDirection Prefs._SortAscending or Prefs._SortDescending
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*/
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Torrent.sortTorrents = function( torrents, sortMethod, sortDirection )
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{
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switch( sortMethod )
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{
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case Prefs._SortByActivity:
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torrents.sort( this.compareByActivity );
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break;
|
|
case Prefs._SortByAge:
|
|
torrents.sort( this.compareByAge );
|
|
break;
|
|
case Prefs._SortByQueue:
|
|
torrents.sort( this.compareById );
|
|
break;
|
|
case Prefs._SortByProgress:
|
|
torrents.sort( this.compareByProgress );
|
|
break;
|
|
case Prefs._SortByState:
|
|
torrents.sort( this.compareByState );
|
|
break;
|
|
case Prefs._SortByTracker:
|
|
torrents.sort( this.compareByTracker );
|
|
break;
|
|
case Prefs._SortByName:
|
|
torrents.sort( this.compareByName );
|
|
break;
|
|
default:
|
|
console.warn( "unknown sort method: " + sortMethod );
|
|
break;
|
|
}
|
|
|
|
if( sortDirection == Prefs._SortDescending )
|
|
torrents.reverse( );
|
|
|
|
return torrents;
|
|
};
|
|
|
|
/**
|
|
* @brief fast binary search to find a torrent
|
|
* @param torrents an array of torrents sorted by Id
|
|
* @param id the id to search for
|
|
* @return the index, or -1
|
|
*/
|
|
Torrent.indexOf = function( torrents, id )
|
|
{
|
|
var low = 0;
|
|
var high = torrents.length;
|
|
while( low < high ) {
|
|
var mid = Math.floor( ( low + high ) / 2 );
|
|
if( torrents[mid].id() < id )
|
|
low = mid + 1;
|
|
else
|
|
high = mid;
|
|
}
|
|
if( ( low < torrents.length ) && ( torrents[low].id() == id ) ) {
|
|
return low;
|
|
} else {
|
|
return -1; // not found
|
|
}
|
|
};
|
|
|
|
/**
|
|
* @param torrents an array of torrents sorted by Id
|
|
* @param id the id to search for
|
|
* @return the torrent, or null
|
|
*/
|
|
Torrent.lookup = function( torrents, id )
|
|
{
|
|
var pos = Torrent.indexOf( torrents, id );
|
|
return pos >= 0 ? torrents[pos] : null;
|
|
};
|