/** * Copyright 2013 IBM Corp. * * 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.keyboard = (function() { var active = true; var handlers = {}; d3.select(window).on("keydown",function() { if (!active) { return; } var handler = handlers[d3.event.keyCode]; if (handler && handler.ondown) { if (!handler.modifiers || ((!handler.modifiers.shift || d3.event.shiftKey) && (!handler.modifiers.ctrl || d3.event.ctrlKey || d3.event.metaKey) && (!handler.modifiers.alt || d3.event.altKey) )) { handler.ondown(); } } }); d3.select(window).on("keyup",function() { if (!active) { return; } var handler = handlers[d3.event.keyCode]; if (handler && handler.onup) { if (!handler.modifiers || ((!handler.modifiers.shift || d3.event.shiftKey) && (!handler.modifiers.ctrl || d3.event.ctrlKey || d3.event.metaKey) && (!handler.modifiers.alt || d3.event.altKey) )) { handler.onup(); } } }); function addHandler(key,modifiers,ondown,onup) { var mod = modifiers; var cbdown = ondown; var cbup = onup; if (typeof modifiers == "function") { mod = {}; cbdown = modifiers; cbup = ondown; } handlers[key] = {modifiers:mod, ondown:cbdown, onup:cbup}; } function removeHandler(key) { delete handlers[key]; } var dialog = $('
'+ '
'+ ''+ ''+ ''+ ''+ ''+ ''+ ''+ ''+ '
Ctrl/⌘ + aSelect all nodes
Shift + ClickSelect all connected nodes
Ctrl/⌘ + ClickAdd/remove node from selection
DeleteDelete selected nodes or link
 
Ctrl/⌘ + iImport nodes
Ctrl/⌘ + eExport selected nodes
'+ '
'+ '
'+ ''+ ''+ ''+ ''+ ''+ ''+ ''+ ''+ '
Ctrl/⌘ + SpaceToggle sidebar
DeleteDelete selected nodes or link
Ctrl/⌘ + cCopy selected nodes
Ctrl/⌘ + xCut selected nodes
Ctrl/⌘ + vPaste nodes
'+ '
'+ '
') .appendTo("body") .dialog({ modal: true, autoOpen: false, width: "800", title:"Keyboard shortcuts", resizable: false, open: function() { RED.keyboard.disable(); }, close: function() { RED.keyboard.enable(); } }); function showKeyboardHelp() { dialog.dialog("open"); } return { add: addHandler, remove: removeHandler, disable: function(){ active = false;}, enable: function(){ active = true; }, showHelp: showKeyboardHelp } })();