node-red/packages/node_modules/@node-red/editor-client/src/js/ui/clipboard.js

/**
 * Copyright JS Foundation and other contributors, http://js.foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 **/


RED.clipboard = (function() {

    var dialog;
    var dialogContainer;
    var exportNodesDialog;
    var importNodesDialog;
    var disabled = false;
    var popover;
    var currentPopoverError;
    var activeTab;
    var libraryBrowser;

    function setupDialogs() {
        dialog = $('<div id="red-ui-clipboard-dialog" class="hide"><form class="dialog-form form-horizontal"></form></div>')
            .appendTo("#red-ui-editor")
            .dialog({
                modal: true,
                autoOpen: false,
                width: 700,
                resizable: false,
                classes: {
                    "ui-dialog": "red-ui-editor-dialog",
                    "ui-dialog-titlebar-close": "hide",
                    "ui-widget-overlay": "red-ui-editor-dialog"
                },
                buttons: [
                    {
                        id: "red-ui-clipboard-dialog-cancel",
                        text: RED._("common.label.cancel"),
                        click: function() {
                            $( this ).dialog( "close" );
                        }
                    },
                    {
                        id: "red-ui-clipboard-dialog-download",
                        class: "primary",
                        text: RED._("clipboard.download"),
                        click: function() {
                            var element = document.createElement('a');
                            element.setAttribute('href', 'data:text/plain;charset=utf-8,' + encodeURIComponent($("#clipboard-export").val()));
                            element.setAttribute('download', "flows.json");
                            element.style.display = 'none';
                            document.body.appendChild(element);
                            element.trigger("click");
                            document.body.removeChild(element);
                            $( this ).dialog( "close" );
                        }
                    },
                    {
                        id: "red-ui-clipboard-dialog-export",
                        class: "primary",
                        text: RED._("clipboard.export.copy"),
                        click: function() {
                            if (activeTab === "red-ui-clipboard-dialog-export-tab-clipboard") {
                                $("#clipboard-export").select();
                                document.execCommand("copy");
                                document.getSelection().removeAllRanges();
                                RED.notify(RED._("clipboard.nodesExported"),{id:"clipboard"});
                                $( this ).dialog( "close" );
                            } else {
                                var flowToExport = $("#clipboard-export").val();
                                var selectedPath = libraryBrowser.getSelected();
                                if (!selectedPath.children) {
                                    selectedPath = selectedPath.parent;
                                }
                                var filename = $("#red-ui-clipboard-dialog-tab-library-name").val().trim();
                                var saveFlow = function() {
                                    $.ajax({
                                        url:'library/'+selectedPath.library+'/'+selectedPath.type+'/'+selectedPath.path + filename,
                                        type: "POST",
                                        data: flowToExport,
                                        contentType: "application/json; charset=utf-8"
                                    }).done(function() {
                                        $(dialog).dialog( "close" );
                                        RED.notify(RED._("library.exportedToLibrary"),"success");
                                    }).fail(function(xhr,textStatus,err) {
                                        if (xhr.status === 401) {
                                            RED.notify(RED._("library.saveFailed",{message:RED._("user.notAuthorized")}),"error");
                                        } else {
                                            RED.notify(RED._("library.saveFailed",{message:xhr.responseText}),"error");
                                        }
                                    });
                                }
                                if (selectedPath.children) {
                                    var exists = false;
                                    selectedPath.children.forEach(function(f) {
                                        if (f.label === filename) {
                                            exists = true;
                                        }
                                    });
                                    if (exists) {
                                        dialog.dialog("close");
                                        var notification = RED.notify(RED._("clipboard.export.exists",{file:RED.utils.sanitize(filename)}),{
                                            type: "warning",
                                            fixed: true,
                                            buttons: [{
                                                text: RED._("common.label.cancel"),
                                                click: function() {
                                                    notification.hideNotification()
                                                    dialog.dialog( "open" );
                                                }
                                            },{
                                                text: RED._("clipboard.export.overwrite"),
                                                click: function() {
                                                    notification.hideNotification()
                                                    saveFlow();
                                                }
                                            }]
                                        });
                                    } else {
                                        saveFlow();
                                    }
                                } else {
                                    saveFlow();
                                }
                            }
                        }
                    },
                    {
                        id: "red-ui-clipboard-dialog-ok",
                        class: "primary",
                        text: RED._("common.label.import"),
                        click: function() {
                            var addNewFlow = ($("#import-tab > a.selected").attr('id') === 'import-tab-new');
                            if (activeTab === "red-ui-clipboard-dialog-import-tab-clipboard") {
                                RED.view.importNodes($("#clipboard-import").val(),addNewFlow);
                            } else {
                                var selectedPath = libraryBrowser.getSelected();
                                if (selectedPath.path) {
                                    $.get('library/'+selectedPath.library+'/'+selectedPath.type+'/'+selectedPath.path, function(data) {
                                        RED.view.importNodes(data,addNewFlow);
                                    });
                                }
                            }
                            $( this ).dialog( "close" );
                        }
                    }
                ],
                close: function(e) {
                    if (popover) {
                        popover.close(true);
                        currentPopoverError = null;
                    }
                }
            });

        dialogContainer = dialog.children(".dialog-form");

        exportNodesDialog =
            '<div class="form-row">'+
                '<label style="width:auto;margin-right: 10px;" data-i18n="common.label.export"></label>'+
                '<span id="export-range-group" class="button-group">'+
                    '<a id="export-range-selected" class="editor-button toggle" href="#" data-i18n="clipboard.export.selected"></a>'+
                    '<a id="export-range-flow" class="editor-button toggle" href="#" data-i18n="clipboard.export.current"></a>'+
                    '<a id="export-range-full" class="editor-button toggle" href="#" data-i18n="clipboard.export.all"></a>'+
                '</span>'+
            '</div>'+
            '<div style="height: 400px; position:relative; border:1px solid #999;">'+
                '<div class="red-ui-clipboard-dialog-tabs">'+
                    '<ul id="red-ui-clipboard-dialog-export-tabs"></ul>'+
                '</div>'+
                '<div id="red-ui-clipboard-dialog-export-tabs-content" class="red-ui-clipboard-dialog-tabs-content">'+
                    '<div id="red-ui-clipboard-dialog-export-tab-clipboard" class="red-ui-clipboard-dialog-tab-clipboard">'+
                        '<div class="form-row">'+
                            '<textarea readonly id="clipboard-export"></textarea>'+
                        '</div>'+
                        '<div class="form-row" style="text-align: right;">'+
                            '<span id="export-format-group" class="button-group">'+
                                '<a id="export-format-mini" class="editor-button editor-button-small toggle" href="#" data-i18n="clipboard.export.compact"></a>'+
                                '<a id="export-format-full" class="editor-button editor-button-small toggle" href="#" data-i18n="clipboard.export.formatted"></a>'+
                            '</span>'+
                        '</div>'+
                    '</div>'+
                    '<div id="red-ui-clipboard-dialog-export-tab-library" class="red-ui-clipboard-dialog-tab-library">'+
                        '<div id="red-ui-clipboard-dialog-export-tab-library-browser"></div>'+
                        '<div class="form-row">'+
                            '<label data-i18n="clipboard.export.exportAs"></label><input id="red-ui-clipboard-dialog-tab-library-name" type="text">'+
                        '</div>'+
                    '</div>'+
                '</div>'+
            '</div>'
            ;


        importNodesDialog =
            '<div style="height: 400px; position:relative; border:1px solid #999; margin-bottom: 12px">'+
                '<div class="red-ui-clipboard-dialog-tabs">'+
                    '<ul id="red-ui-clipboard-dialog-import-tabs"></ul>'+
                '</div>'+
                '<div id="red-ui-clipboard-dialog-import-tabs-content" class="red-ui-clipboard-dialog-tabs-content">'+
                    '<div id="red-ui-clipboard-dialog-import-tab-clipboard" class="red-ui-clipboard-dialog-tab-clipboard">'+
                        '<div class="form-row"><span data-i18n="clipboard.pasteNodes"></span>'+
                            ' <a class="editor-button" id="import-file-upload-btn"><i class="fa fa-upload"></i> <span data-i18n="clipboard.selectFile"></span></a>'+
                            '<input type="file" id="import-file-upload" accept=".json" style="display:none">'+
                        '</div>'+
                        '<div class="form-row">'+
                            '<textarea id="clipboard-import"></textarea>'+
                        '</div>'+
                    '</div>'+
                    '<div id="red-ui-clipboard-dialog-import-tab-library" class="red-ui-clipboard-dialog-tab-library">'+
                        '<div id="red-ui-clipboard-dialog-import-tab-library-browser"></div>'+
                    '</div>'+
                '</div>'+
            '</div>'+
            '<div class="form-row">'+
                '<label style="width:auto;margin-right: 10px;" data-i18n="clipboard.import.import"></label>'+
                '<span id="import-tab" class="button-group">'+
                    '<a id="import-tab-current" class="editor-button toggle selected" href="#" data-i18n="clipboard.export.current"></a>'+
                    '<a id="import-tab-new" class="editor-button toggle" href="#" data-i18n="clipboard.import.newFlow"></a>'+
                '</span>'+
            '</div>';

    }

    var validateExportFilenameTimeout
    function validateExportFilename() {
        if (validateExportFilenameTimeout) {
            clearTimeout(validateExportFilenameTimeout);
        }
        validateExportFilenameTimeout = setTimeout(function() {
            var filenameInput = $("#red-ui-clipboard-dialog-tab-library-name");
            var filename = filenameInput.val().trim();
            var valid = filename.length > 0 && !/[\/\\]/.test(filename);
            if (valid) {
                filenameInput.removeClass("input-error");
                $("#red-ui-clipboard-dialog-export").button("enable");
            } else {
                filenameInput.addClass("input-error");
                $("#red-ui-clipboard-dialog-export").button("disable");
            }
        },100);
    }

    var validateImportTimeout;
    function validateImport() {
        if (activeTab === "red-ui-clipboard-dialog-import-tab-clipboard") {
            if (validateImportTimeout) {
                clearTimeout(validateImportTimeout);
            }
            validateImportTimeout = setTimeout(function() {
                var importInput = $("#clipboard-import");
                var v = importInput.val().trim();
                if (v === "") {
                    popover.close(true);
                    currentPopoverError = null;
                    importInput.removeClass("input-error");
                    $("#red-ui-clipboard-dialog-ok").button("disable");
                    return;
                }
                try {
                    if (!/^\[[\s\S]*\]$/m.test(v)) {
                        throw new Error(RED._("clipboard.import.errors.notArray"));
                    }
                    var res = JSON.parse(v);
                    for (var i=0;i<res.length;i++) {
                        if (typeof res[i] !== "object") {
                            throw new Error(RED._("clipboard.import.errors.itemNotObject",{index:i}));
                        }
                        if (!res[i].hasOwnProperty('id')) {
                            throw new Error(RED._("clipboard.import.errors.missingId",{index:i}));
                        }
                        if (!res[i].hasOwnProperty('type')) {
                            throw new Error(RED._("clipboard.import.errors.missingType",{index:i}));
                        }
                    }
                    currentPopoverError = null;
                    popover.close(true);
                    importInput.removeClass("input-error");
                    importInput.val(v);
                    $("#red-ui-clipboard-dialog-ok").button("enable");
                } catch(err) {
                    if (v !== "") {
                        importInput.addClass("input-error");
                        var errString = err.toString();
                        if (errString !== currentPopoverError) {
                            // Display the error as-is.
                            // Error messages are only in English. Each browser has its
                            // own set of messages with very little consistency.
                            // To provide translated messages this code will either need to:
                            // - reduce everything down to 'unexpected token at position x'
                            //   which is the least useful, but most consistent message
                            // - use a custom/library parser that gives consistent messages
                            //   which can be translated.
                            var message = $('<div class="red-ui-clipboard-import-error"></div>').text(errString);
                            var errorPos;
                            // Chrome error messages
                            var m = /at position (\d+)/i.exec(errString);
                            if (m) {
                                errorPos = parseInt(m[1]);
                            } else {
                                // Firefox error messages
                                m = /at line (\d+) column (\d+)/i.exec(errString);
                                if (m) {
                                    var line = parseInt(m[1])-1;
                                    var col = parseInt(m[2])-1;
                                    var lines = v.split("\n");
                                    errorPos = 0;
                                    for (var i=0;i<line;i++) {
                                        errorPos += lines[i].length+1;
                                    }
                                    errorPos += col;
                                } else {
                                    // Safari doesn't provide any position information
                                    // IE: tbd
                                }
                            }

                            if (errorPos !== undefined) {
                                v = v.replace(/\n/g,"↵");
                                var index = parseInt(m[1]);
                                var parseError = $('<div>').appendTo(message);
                                var code = $('<pre>').appendTo(parseError);
                                $('<span>').text(v.substring(errorPos-12,errorPos)).appendTo(code)
                                $('<span class="error">').text(v.charAt(errorPos)).appendTo(code);
                                $('<span>').text(v.substring(errorPos+1,errorPos+12)).appendTo(code);
                            }
                            popover.close(true).setContent(message).open();
                            currentPopoverError = errString;
                        }
                    } else {
                        currentPopoverError = null;
                    }
                    $("#red-ui-clipboard-dialog-ok").button("disable");
                }
            },100);
        } else {
            var file = libraryBrowser.getSelected();
            if (file && file.label && !file.children) {
                $("#red-ui-clipboard-dialog-ok").button("enable");
            } else {
                $("#red-ui-clipboard-dialog-ok").button("disable");
            }
        }
    }

    function importNodes(mode) {
        if (disabled) {
            return;
        }
        mode = mode || "clipboard";

        dialogContainer.empty();
        dialogContainer.append($(importNodesDialog));

        var tabs = RED.tabs.create({
            id: "red-ui-clipboard-dialog-import-tabs",
            vertical: true,
            onchange: function(tab) {
                $("#red-ui-clipboard-dialog-import-tabs-content").children().hide();
                $("#" + tab.id).show();
                activeTab = tab.id;
                if (popover) {
                    popover.close(true);
                    currentPopoverError = null;
                }
                if (tab.id === "red-ui-clipboard-dialog-import-tab-clipboard") {
                    $("#clipboard-import").trigger("focus");
                } else {
                    libraryBrowser.focus();
                }
                validateImport();
            }
        });
        tabs.addTab({
            id: "red-ui-clipboard-dialog-import-tab-clipboard",
            label: RED._("clipboard.clipboard")
        });
        tabs.addTab({
            id: "red-ui-clipboard-dialog-import-tab-library",
            label: RED._("library.library")
        });

        tabs.activateTab("red-ui-clipboard-dialog-import-tab-"+mode);
        if (mode === 'clipboard') {
            setTimeout(function() {
                $("#clipboard-import").trigger("focus");
            },100)
        }


        $("#red-ui-clipboard-dialog-tab-library-name").on("keyup", validateExportFilename);
        $("#red-ui-clipboard-dialog-tab-library-name").on('paste',function() { setTimeout(validateExportFilename,10)});
        $("#red-ui-clipboard-dialog-export").button("enable");

        libraryBrowser = RED.library.createBrowser({
            container: $("#red-ui-clipboard-dialog-import-tab-library-browser"),
            onselect: function(file) {
                if (file && file.label && !file.children) {
                    $("#red-ui-clipboard-dialog-ok").button("enable");
                } else {
                    $("#red-ui-clipboard-dialog-ok").button("disable");
                }
            }
        })
        loadFlowLibrary(libraryBrowser,true);

        dialogContainer.i18n();

        $("#red-ui-clipboard-dialog-ok").show();
        $("#red-ui-clipboard-dialog-cancel").show();
        $("#red-ui-clipboard-dialog-export").hide();
        $("#red-ui-clipboard-dialog-download").hide();
        $("#red-ui-clipboard-dialog-ok").button("disable");
        $("#clipboard-import").on("keyup", validateImport);
        $("#clipboard-import").on('paste',function() { setTimeout(validateImport,10)});

        $("#import-tab > a").on("click", function(evt) {
            evt.preventDefault();
            if ($(this).hasClass('disabled') || $(this).hasClass('selected')) {
                return;
            }
            $(this).parent().children().removeClass('selected');
            $(this).addClass('selected');
        });

        $("#import-file-upload").on("change", function() {
            var fileReader = new FileReader();
            fileReader.onload = function () {
                $("#clipboard-import").val(fileReader.result);
                validateImport();
            };
            fileReader.readAsText($(this).prop('files')[0]);
        })
        $("#import-file-upload-btn").on("click", function(evt) {
            evt.preventDefault();
            $("#import-file-upload").trigger("click");
        })

        dialog.dialog("option","title",RED._("clipboard.importNodes")).dialog("open");
        popover = RED.popover.create({
            target: $("#clipboard-import"),
            trigger: "manual",
            direction: "bottom",
            content: ""
        });
    }

    function exportNodes(mode) {
        if (disabled) {
            return;
        }

        mode = mode || "clipboard";

        dialogContainer.empty();
        dialogContainer.append($(exportNodesDialog));

        var tabs = RED.tabs.create({
            id: "red-ui-clipboard-dialog-export-tabs",
            vertical: true,
            onchange: function(tab) {
                $("#red-ui-clipboard-dialog-export-tabs-content").children().hide();
                $("#" + tab.id).show();
                activeTab = tab.id;
                if (tab.id === "red-ui-clipboard-dialog-export-tab-clipboard") {
                    $("#red-ui-clipboard-dialog-export").button("option","label", RED._("clipboard.export.copy"))
                    $("#red-ui-clipboard-dialog-download").show();
                } else {
                    $("#red-ui-clipboard-dialog-export").button("option","label", RED._("clipboard.export.export"))
                    $("#red-ui-clipboard-dialog-download").hide();
                    libraryBrowser.focus();
                }

            }
        });
        tabs.addTab({
            id: "red-ui-clipboard-dialog-export-tab-clipboard",
            label: RED._("clipboard.clipboard")
        });
        tabs.addTab({
            id: "red-ui-clipboard-dialog-export-tab-library",
            label: RED._("library.library")
        });

        tabs.activateTab("red-ui-clipboard-dialog-export-tab-"+mode);

        $("#red-ui-clipboard-dialog-tab-library-name").on("keyup", validateExportFilename);
        $("#red-ui-clipboard-dialog-tab-library-name").on('paste',function() { setTimeout(validateExportFilename,10)});
        $("#red-ui-clipboard-dialog-export").button("enable");

        libraryBrowser = RED.library.createBrowser({
            container: $("#red-ui-clipboard-dialog-export-tab-library-browser"),
            folderTools: true,
            onselect: function(file) {
                if (file && file.label && !file.children) {
                    $("#red-ui-clipboard-dialog-tab-library-name").val(file.label);
                }
            }
        })
        loadFlowLibrary(libraryBrowser,false);

        $("#red-ui-clipboard-dialog-tab-library-name").val("flows.json").select();

        dialogContainer.i18n();
        var format = RED.settings.flowFilePretty ? "export-format-full" : "export-format-mini";

        $("#export-format-group > a").on("click", function(evt) {
            evt.preventDefault();
            if ($(this).hasClass('disabled') || $(this).hasClass('selected')) {
                $("#clipboard-export").trigger("focus");
                return;
            }
            $(this).parent().children().removeClass('selected');
            $(this).addClass('selected');

            var flow = $("#clipboard-export").val();
            if (flow.length > 0) {
                var nodes = JSON.parse(flow);

                format = $(this).attr('id');
                if (format === 'export-format-full') {
                    flow = JSON.stringify(nodes,null,4);
                } else {
                    flow = JSON.stringify(nodes);
                }
                $("#clipboard-export").val(flow);
                setTimeout(function() { $("#clipboard-export").scrollTop(0); },50);

                $("#clipboard-export").trigger("focus");
            }
        });

        $("#export-range-group > a").on("click", function(evt) {
            evt.preventDefault();
            if ($(this).hasClass('disabled') || $(this).hasClass('selected')) {
                return;
            }
            $(this).parent().children().removeClass('selected');
            $(this).addClass('selected');
            var type = $(this).attr('id');
            var flow = "";
            var nodes = null;
            if (type === 'export-range-selected') {
                var selection = RED.workspaces.selection();
                if (selection.length > 0) {
                    nodes = [];
                    selection.forEach(function(n) {
                        nodes.push(n);
                        nodes = nodes.concat(RED.nodes.filterNodes({z:n.id}));
                    });
                } else {
                    nodes = RED.view.selection().nodes||[];
                }
                // Don't include the subflow meta-port nodes in the exported selection
                nodes = RED.nodes.createExportableNodeSet(nodes.filter(function(n) { return n.type !== 'subflow'}));
            } else if (type === 'export-range-flow') {
                var activeWorkspace = RED.workspaces.active();
                nodes = RED.nodes.filterNodes({z:activeWorkspace});
                var parentNode = RED.nodes.workspace(activeWorkspace)||RED.nodes.subflow(activeWorkspace);
                nodes.unshift(parentNode);
                nodes = RED.nodes.createExportableNodeSet(nodes);
            } else if (type === 'export-range-full') {
                nodes = RED.nodes.createCompleteNodeSet(false);
            }
            if (nodes !== null) {
                if (format === "export-format-full") {
                    flow = JSON.stringify(nodes,null,4);
                } else {
                    flow = JSON.stringify(nodes);
                }
            }
            if (flow.length > 0) {
                $("#export-copy").removeClass('disabled');
            } else {
                $("#export-copy").addClass('disabled');
            }
            $("#clipboard-export").val(flow);
            setTimeout(function() { $("#clipboard-export").scrollTop(0); },50);
            $("#clipboard-export").trigger("focus");
        })

        $("#red-ui-clipboard-dialog-ok").hide();
        $("#red-ui-clipboard-dialog-cancel").hide();
        $("#red-ui-clipboard-dialog-export").hide();
        var selection = RED.workspaces.selection();
        if (selection.length > 0) {
            $("#export-range-selected").trigger("click");
        } else {
            selection = RED.view.selection();
            if (selection.nodes) {
                $("#export-range-selected").trigger("click");
            } else {
                $("#export-range-selected").addClass('disabled').removeClass('selected');
                $("#export-range-flow").trigger("click");
            }
        }
        if (format === "export-format-full") {
            $("#export-format-full").trigger("click");
        } else {
            $("#export-format-mini").trigger("click");
        }
        dialog.dialog("option","title",RED._("clipboard.exportNodes")).dialog( "open" );

        $("#clipboard-export").trigger("focus");
        $("#red-ui-clipboard-dialog-cancel").show();
        $("#red-ui-clipboard-dialog-export").show();
        $("#red-ui-clipboard-dialog-download").show();

    }

    function loadFlowLibrary(browser,includeExamples) {
        var listing = [];
        if (includeExamples) {
            listing.push({
                library: "_examples_",
                type: "flows",
                icon: 'fa fa-hdd-o',
                label: RED._("library.types.examples"),
                path: "",
                children: function(item,done) {
                    RED.library.loadLibraryFolder("_examples_","flows","",function(children) {
                        item.children = children;
                        done(children);
                    })
                }
            })
        }
        listing.push({
            library: "local",
            type: "flows",
            icon: 'fa fa-hdd-o',
            label: RED._("library.types.local"),
            path: "",
            expanded: true,
            children: function(item,done) {
                RED.library.loadLibraryFolder("local","flows","",function(children) {
                    item.children = children;
                    done(children);
                })
            }
        })
        browser.data(listing);
    }

    function hideDropTarget() {
        $("#red-ui-drop-target").hide();
        RED.keyboard.remove("escape");
    }
    function copyText(value,element,msg) {
        var truncated = false;
        if (typeof value !== "string" ) {
            value = JSON.stringify(value, function(key,value) {
                if (value !== null && typeof value === 'object') {
                    if (value.__enc__) {
                        if (value.hasOwnProperty('data') && value.hasOwnProperty('length')) {
                            truncated = value.data.length !== value.length;
                            return value.data;
                        }
                        if (value.type === 'function' || value.type === 'internal') {
                            return undefined
                        }
                        if (value.type === 'number') {
                            // Handle NaN and Infinity - they are not permitted
                            // in JSON. We can either substitute with a String
                            // representation or null
                            return null;
                        }
                    }
                }
                return value;
            });
        }
        if (truncated) {
            msg += "_truncated";
        }
        $("#red-ui-clipboard-hidden").val(value).select();
        var result =  document.execCommand("copy");
        if (result && element) {
            var popover = RED.popover.create({
                target: element,
                direction: 'left',
                size: 'small',
                content: RED._(msg)
            });
            setTimeout(function() {
                popover.close();
            },1000);
            popover.open();
        }
        return result;
    }
    return {
        init: function() {
            setupDialogs();

            $('<input type="text" id="red-ui-clipboard-hidden">').appendTo("#red-ui-editor");

            RED.actions.add("core:show-export-dialog",exportNodes);
            RED.actions.add("core:show-import-dialog",importNodes);

            RED.actions.add("core:library-export",function() { exportNodes('library') });

            RED.events.on("editor:open",function() { disabled = true; });
            RED.events.on("editor:close",function() { disabled = false; });
            RED.events.on("search:open",function() { disabled = true; });
            RED.events.on("search:close",function() { disabled = false; });
            RED.events.on("type-search:open",function() { disabled = true; });
            RED.events.on("type-search:close",function() { disabled = false; });

            $('<div id="red-ui-drop-target"><div data-i18n="[append]workspace.dropFlowHere"><i class="fa fa-download"></i><br></div></div>').appendTo('#red-ui-editor');

            $('#red-ui-workspace-chart').on("dragenter",function(event) {
                if ($.inArray("text/plain",event.originalEvent.dataTransfer.types) != -1 ||
                     $.inArray("Files",event.originalEvent.dataTransfer.types) != -1) {
                    $("#red-ui-drop-target").css({display:'table'});
                    RED.keyboard.add("*", "escape" ,hideDropTarget);
                }
            });

            $('#red-ui-drop-target').on("dragover",function(event) {
                if ($.inArray("text/plain",event.originalEvent.dataTransfer.types) != -1 ||
                     $.inArray("Files",event.originalEvent.dataTransfer.types) != -1) {
                    event.preventDefault();
                }
            })
            .on("dragleave",function(event) {
                hideDropTarget();
            })
            .on("drop",function(event) {
                if ($.inArray("text/plain",event.originalEvent.dataTransfer.types) != -1) {
                    var data = event.originalEvent.dataTransfer.getData("text/plain");
                    data = data.substring(data.indexOf('['),data.lastIndexOf(']')+1);
                    RED.view.importNodes(data);
                } else if ($.inArray("Files",event.originalEvent.dataTransfer.types) != -1) {
                    var files = event.originalEvent.dataTransfer.files;
                    if (files.length === 1) {
                        var file = files[0];
                        var reader = new FileReader();
                        reader.onload = (function(theFile) {
                            return function(e) {
                                RED.view.importNodes(e.target.result);
                            };
                        })(file);
                        reader.readAsText(file);
                    }
                }
                hideDropTarget();
                event.preventDefault();
            });

        },
        import: importNodes,
        export: exportNodes,
        copyText: copyText
    }
})();