src/view/MainViewManager.js
function _findPaneForDocument(document) {
        // First check for an editor view of the document
        var pane = _getPaneFromElement($(document._masterEditor.$el.parent().parent()));

        if (!pane) {
            // No view of the document, it may be in a working set and not yet opened
            var info = findInAllWorkingSets(document.file.fullPath).shift();
            if (info) {
                pane = _panes[info.paneId];
            }
        }

        return pane;
    }
function _findPaneForDocument(document) {
        // First check for an editor view of the document
        var pane = _getPaneFromElement($(document._masterEditor.$el.parent().parent()));

        if (!pane) {
            // No view of the document, it may be in a working set and not yet opened
            var info = findInAllWorkingSets(document.file.fullPath).shift();
            if (info) {
                pane = _panes[info.paneId];
            }
        }

        return pane;
    }
function _findPaneForDocument ( document ) { // First check for an editor view of the document var pane = _getPaneFromElement ( $ ( document . _masterEditor . $el . parent ( ) . parent ( ) ) ) ; if ( ! pane ) { // No view of the document, it may be in a working set and not yet opened var info = findInAllWorkingSets ( document . file . fullPath ) . shift ( ) ; if ( info ) { pane = _panes [ info . paneId ] ; } } return pane ; }
Finds which pane a document belongs to
@param {!Document} document - the document to locate
@return {?Pane} the pane where the document lives or NULL if it isn't in a pane
@private
Finds which pane a document belongs to