Edit File by line

/**

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* elFinder command prototype

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* @type elFinder.command

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* @author Dmitry (dio) Levashov

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elFinder.prototype.command = function(fm) {

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"use strict";

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/**

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* elFinder instance

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* @type elFinder

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this.fm = fm;

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/**

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* Command name, same as class name

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* @type String

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this.name = '';

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/**

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* Dialog class name

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* @type String

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this.dialogClass = '';

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/**

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* Command icon class name with out 'elfinder-button-icon-'

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* Use this.name if it is empty

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* @type String

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this.className = '';

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/**

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* Short command description

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* @type String

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this.title = '';

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/**

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* Linked(Child) commands name

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* They are loaded together when tthis command is loaded.

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* @type Array

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this.linkedCmds = [];

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/**

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* Current command state

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* @example

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* this.state = -1; // command disabled

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* this.state = 0; // command enabled

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* this.state = 1; // command active (for example "fullscreen" command while elfinder in fullscreen mode)

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* @default -1

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* @type Number

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this.state = -1;

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/**

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* If true, command can not be disabled by connector.

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* @see this.update()

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* @type Boolen

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this.alwaysEnabled = false;

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/**

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* Do not change dirctory on removed current work directory

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* @type Boolen

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this.noChangeDirOnRemovedCwd = false;

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/**

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* If true, this means command was disabled by connector.

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* @see this.update()

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* @type Boolen

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this._disabled = false;

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/**

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* If true, this command is disabled on serach results

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* @type Boolean

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this.disableOnSearch = false;

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/**

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* Call update() when event select fired

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* @type Boolean

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this.updateOnSelect = true;

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/**

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* Sync toolbar button title on change

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* @type Boolean

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this.syncTitleOnChange = false;

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/**

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* Keep display of the context menu when command execution

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* @type Boolean

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this.keepContextmenu = false;

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/**

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* elFinder events defaults handlers.

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* Inside handlers "this" is current command object

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* @type Object

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this._handlers = {

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enable : function() { this.update(void(0), this.value); },

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disable : function() { this.update(-1, this.value); },

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'open reload load sync' : function() {

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this._disabled = !(this.alwaysEnabled || this.fm.isCommandEnabled(this.name));

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this.update(void(0), this.value);

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this.change();

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}

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};

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/**

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* elFinder events handlers.

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* Inside handlers "this" is current command object

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* @type Object

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this.handlers = {};

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/**

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* Shortcuts

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* @type Array

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this.shortcuts = [];

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/**

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* Command options

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* @type Object

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this.options = {ui : 'button'};

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/**

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* Callback functions on `change` event

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* @type Array

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this.listeners = [];

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/**

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* Prepare object -

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* bind events and shortcuts

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* @return void

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this.setup = function(name, opts) {

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var self = this,

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fm = this.fm,

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setCallback = function(s) {

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var cb = s.callback || function(e) {

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fm.exec(self.name, void(0), {

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_userAction: true,

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_currentType: 'shortcut'

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});

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};

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s.callback = function(e) {

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var enabled, checks = {};

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if (self.enabled()) {

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if (fm.searchStatus.state < 2) {

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enabled = fm.isCommandEnabled(self.name);

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} else {

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jQuery.each(fm.selected(), function(i, h) {

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if (fm.optionsByHashes[h]) {

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checks[h] = true;

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} else {

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jQuery.each(fm.volOptions, function(id) {

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if (!checks[id] && h.indexOf(id) === 0) {

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checks[id] = true;

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return false;

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}

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});

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}

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});

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jQuery.each(checks, function(h) {

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enabled = fm.isCommandEnabled(self.name, h);

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if (! enabled) {

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return false;

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}

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});

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}

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if (enabled) {

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self.event = e;

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cb.call(self);

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delete self.event;

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}

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}

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};

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i, s, sc;

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this.name = name;

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this.title = fm.messages['cmd'+name] ? fm.i18n('cmd'+name)

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: ((this.extendsCmd && fm.messages['cmd'+this.extendsCmd]) ? fm.i18n('cmd'+this.extendsCmd) : name);

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this.options = Object.assign({}, this.options, opts);

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this.listeners = [];

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this.dialogClass = 'elfinder-dialog-' + name;

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if (opts.shortcuts) {

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if (typeof opts.shortcuts === 'function') {

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sc = opts.shortcuts(this.fm, this.shortcuts);

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} else if (Array.isArray(opts.shortcuts)) {

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sc = opts.shortcuts;

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}

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this.shortcuts = sc || [];

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}

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if (this.updateOnSelect) {

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this._handlers.select = function() { this.update(void(0), this.value); };

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}

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jQuery.each(Object.assign({}, self._handlers, self.handlers), function(cmd, handler) {

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fm.bind(cmd, jQuery.proxy(handler, self));

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});

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for (i = 0; i < this.shortcuts.length; i++) {

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s = this.shortcuts[i];

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setCallback(s);

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!s.description && (s.description = this.title);

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fm.shortcut(s);

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}

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if (this.disableOnSearch) {

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fm.bind('search searchend', function() {

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self._disabled = this.type === 'search'? true : ! (this.alwaysEnabled || fm.isCommandEnabled(name));

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self.update(void(0), self.value);

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});

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}

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this.init();

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};

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/**

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* Command specific init stuffs

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* @return void

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this.init = function() {};

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/**

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* Exec command

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* @param Array target files hashes

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* @param Array|Object command value

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* @return jQuery.Deferred

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this.exec = function(files, opts) {

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return jQuery.Deferred().reject();

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};

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this.getUndo = function(opts, resData) {

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return false;

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};

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/**

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* Return true if command disabled.

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* @return Boolen

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this.disabled = function() {

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return this.state < 0;

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};

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/**

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* Return true if command enabled.

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* @return Boolen

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this.enabled = function() {

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return this.state > -1;

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};

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/**

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* Return true if command active.

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* @return Boolen

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this.active = function() {

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return this.state > 0;

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};

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/**

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* Return current command state.

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* Must be overloaded in most commands

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* @return Number

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this.getstate = function() {

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return -1;

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};

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/**

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* Update command state/value

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* and rize 'change' event if smth changed

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* @param Number new state or undefined to auto update state

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* @param mixed new value

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* @return void

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this.update = function(s, v) {

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var state = this.state,

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value = this.value;

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if (this._disabled && this.fm.searchStatus === 0) {

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this.state = -1;

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} else {

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this.state = s !== void(0) ? s : this.getstate();

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}

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this.value = v;

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if (state != this.state || value != this.value) {

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this.change();

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}

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};

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/**

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* Bind handler / fire 'change' event.

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* @param Function|undefined event callback

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* @return void

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this.change = function(c) {

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var cmd, i;

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if (typeof(c) === 'function') {

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this.listeners.push(c);

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} else {

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for (i = 0; i < this.listeners.length; i++) {

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cmd = this.listeners[i];

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try {

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cmd(this.state, this.value);

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} catch (e) {

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this.fm.debug('error', e);

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}

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}

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}

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return this;

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};

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/**

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* With argument check given files hashes and return list of existed files hashes.

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* Without argument return selected files hashes.

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* @param Array|String|void hashes

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* @return Array

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this.hashes = function(hashes) {

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return hashes

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? jQuery.grep(Array.isArray(hashes) ? hashes : [hashes], function(hash) { return fm.file(hash) ? true : false; })

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: fm.selected();

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};

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/**

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* Return only existed files from given fils hashes | selected files

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* @param Array|String|void hashes

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* @return Array

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this.files = function(hashes) {

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var fm = this.fm;

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return hashes

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? jQuery.map(Array.isArray(hashes) ? hashes : [hashes], function(hash) { return fm.file(hash) || null; })

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: fm.selectedFiles();

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};

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/**

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* Wrapper to fm.dialog()

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* @param String|DOMElement content

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* @param Object options

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* @return Object jQuery element object

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this.fmDialog = function(content, options) {

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if (options.cssClass) {

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options.cssClass += ' ' + this.dialogClass;

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} else {

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options.cssClass = this.dialogClass;

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}

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return this.fm.dialog(content, options);

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};

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};

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