| /* |
| * Copyright 2014-present Open Networking Laboratory |
| * |
| * 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. |
| */ |
| |
| /* |
| ONOS GUI -- Util -- Key Handler Service |
| */ |
| (function () { |
| 'use strict'; |
| |
| // references to injected services |
| var $log, $timeout, fs, ts, ns, ee, qhs; |
| |
| // internal state |
| var enabled = true, |
| globalEnabled = true, |
| keyHandler = { |
| globalKeys: {}, |
| maskedKeys: {}, |
| dialogKeys: {}, |
| viewKeys: {}, |
| viewFn: null, |
| viewGestures: [] |
| }, |
| seq = {}, |
| matching = false, |
| matched = '', |
| lookup; |
| |
| function matchSeq(key) { |
| if (!matching && key === 'shift') { |
| matching = true; |
| return true; |
| } |
| if (matching) { |
| matched += key; |
| lookup = fs.trieLookup(seq, matched); |
| if (lookup === -1) { |
| return true; |
| } |
| matching = false; |
| matched = ''; |
| if (!lookup) { |
| return; |
| } |
| ee.cluck(lookup); |
| return true; |
| } |
| } |
| |
| function whatKey(code) { |
| switch (code) { |
| case 8: return 'delete'; |
| case 9: return 'tab'; |
| case 13: return 'enter'; |
| case 16: return 'shift'; |
| case 17: return 'ctrl'; |
| case 18: return 'alt'; |
| case 27: return 'esc'; |
| case 32: return 'space'; |
| case 37: return 'leftArrow'; |
| case 38: return 'upArrow'; |
| case 39: return 'rightArrow'; |
| case 40: return 'downArrow'; |
| case 91: return 'cmdLeft'; |
| case 93: return 'cmdRight'; |
| case 186: return 'semicolon'; |
| case 187: return 'equals'; |
| case 188: return 'comma'; |
| case 189: return 'dash'; |
| case 190: return 'dot'; |
| case 191: return 'slash'; |
| case 192: return 'backQuote'; |
| case 219: return 'openBracket'; |
| case 220: return 'backSlash'; |
| case 221: return 'closeBracket'; |
| case 222: return 'quote'; |
| default: |
| if ((code >= 48 && code <= 57) || |
| (code >= 65 && code <= 90)) { |
| return String.fromCharCode(code); |
| } else if (code >= 112 && code <= 123) { |
| return 'F' + (code - 111); |
| } |
| return '.'; |
| } |
| } |
| |
| function textFieldInput() { |
| var t = d3.event.target.tagName.toLowerCase(); |
| return t === 'input' || t === 'textarea'; |
| } |
| |
| function keyIn() { |
| if (textFieldInput()) { |
| return; |
| } |
| var event = d3.event, |
| keyCode = event.keyCode, |
| key = whatKey(keyCode), |
| kh = keyHandler, |
| gk = kh.globalKeys[key], |
| gcb = fs.isF(gk) || (fs.isA(gk) && fs.isF(gk[0])), |
| dk = kh.dialogKeys[key], |
| dcb = fs.isF(dk), |
| vk = kh.viewKeys[key], |
| kl = fs.isF(kh.viewKeys._keyListener), |
| vcb = fs.isF(vk) || (fs.isA(vk) && fs.isF(vk[0])) || fs.isF(kh.viewFn), |
| token = 'keyev'; // indicate this was a key-pressed event |
| |
| d3.event.stopPropagation(); |
| |
| if (enabled) { |
| if (matchSeq(key)) return; |
| |
| // global callback? |
| if (gcb && gcb(token, key, keyCode, event)) { |
| // if the event was 'handled', we are done |
| return; |
| } |
| // dialog callback? |
| if (dcb) { |
| dcb(token, key, keyCode, event); |
| // assume dialog handled the event |
| return; |
| } |
| // otherwise, let the view callback have a shot |
| if (vcb) { |
| vcb(token, key, keyCode, event); |
| } |
| if (kl) { |
| kl(key); |
| } |
| } |
| } |
| |
| function setupGlobalKeys() { |
| angular.extend(keyHandler, { |
| globalKeys: { |
| backSlash: [quickHelp, 'Show / hide Quick Help'], |
| slash: [quickHelp, 'Show / hide Quick Help'], |
| esc: [escapeKey, 'Dismiss dialog or cancel selections'], |
| T: [toggleTheme, "Toggle theme"] |
| }, |
| globalFormat: ['backSlash', 'slash', 'esc', 'T'], |
| |
| // Masked keys are global key handlers that always return true. |
| // That is, the view will never see the event for that key. |
| maskedKeys: { |
| slash: true, |
| backSlash: true, |
| T: true |
| } |
| }); |
| } |
| |
| function quickHelp(view, key, code, ev) { |
| if (!globalEnabled) { |
| return false; |
| } |
| qhs.showQuickHelp(keyHandler); |
| return true; |
| } |
| |
| // returns true if we 'consumed' the ESC keypress, false otherwise |
| function escapeKey(view, key, code, ev) { |
| return ns.hideIfShown() || qhs.hideQuickHelp(); |
| } |
| |
| function toggleTheme(view, key, code, ev) { |
| if (!globalEnabled) { |
| return false; |
| } |
| ts.toggleTheme(); |
| return true; |
| } |
| |
| function filterMaskedKeys(map, caller, remove) { |
| var masked = [], |
| msgs = []; |
| |
| d3.map(map).keys().forEach(function (key) { |
| if (keyHandler.maskedKeys[key]) { |
| masked.push(key); |
| msgs.push(caller, ': Key "' + key + '" is reserved'); |
| } |
| }); |
| |
| if (msgs.length) { |
| $log.warn(msgs.join('\n')); |
| } |
| |
| if (remove) { |
| masked.forEach(function (k) { |
| delete map[k]; |
| }); |
| } |
| return masked; |
| } |
| |
| function unexParam(fname, x) { |
| $log.warn(fname, ": unexpected parameter-- ", x); |
| } |
| |
| function setKeyBindings(keyArg) { |
| var fname = 'setKeyBindings()', |
| kFunc = fs.isF(keyArg), |
| kMap = fs.isO(keyArg); |
| |
| if (kFunc) { |
| // set general key handler callback |
| keyHandler.viewFn = kFunc; |
| } else if (kMap) { |
| filterMaskedKeys(kMap, fname, true); |
| keyHandler.viewKeys = kMap; |
| } else { |
| unexParam(fname, keyArg); |
| } |
| } |
| |
| function getKeyBindings() { |
| var gkeys = d3.map(keyHandler.globalKeys).keys(), |
| masked = d3.map(keyHandler.maskedKeys).keys(), |
| vkeys = d3.map(keyHandler.viewKeys).keys(), |
| vfn = !!fs.isF(keyHandler.viewFn); |
| |
| return { |
| globalKeys: gkeys, |
| maskedKeys: masked, |
| viewKeys: vkeys, |
| viewFunction: vfn |
| }; |
| } |
| |
| function unbindKeys() { |
| keyHandler.viewKeys = {}; |
| keyHandler.viewFn = null; |
| keyHandler.viewGestures = []; |
| } |
| |
| function bindDialogKeys(map) { |
| var fname = 'bindDialogKeys()', |
| kMap = fs.isO(map); |
| |
| if (kMap) { |
| filterMaskedKeys(map, fname, true); |
| keyHandler.dialogKeys = kMap; |
| } else { |
| unexParam(fname, map); |
| } |
| } |
| |
| function unbindDialogKeys() { |
| keyHandler.dialogKeys = {}; |
| } |
| |
| function checkNotGlobal(o) { |
| var oops = []; |
| if (fs.isO(o)) { |
| angular.forEach(o, function (val, key) { |
| if (keyHandler.globalKeys[key]) { |
| oops.push(key); |
| } |
| }); |
| if (oops.length) { |
| $log.warn('Ignoring reserved global key(s):', oops.join(',')); |
| oops.forEach(function (key) { |
| delete o[key]; |
| }); |
| } |
| } |
| } |
| |
| angular.module('onosUtil') |
| .factory('KeyService', |
| ['$log', '$timeout', 'FnService', 'ThemeService', 'NavService', |
| 'EeService', |
| |
| function (_$log_, _$timeout_, _fs_, _ts_, _ns_, _ee_) { |
| $log = _$log_; |
| $timeout = _$timeout_; |
| fs = _fs_; |
| ts = _ts_; |
| ns = _ns_; |
| ee = _ee_; |
| |
| return { |
| bindQhs: function (_qhs_) { |
| qhs = _qhs_; |
| }, |
| installOn: function (elem) { |
| elem.on('keydown', keyIn); |
| setupGlobalKeys(); |
| }, |
| keyBindings: function (x) { |
| if (x === undefined) { |
| return getKeyBindings(); |
| } else { |
| setKeyBindings(x); |
| } |
| }, |
| unbindKeys: unbindKeys, |
| dialogKeys: function (x) { |
| if (x === undefined) { |
| unbindDialogKeys(); |
| } else { |
| bindDialogKeys(x); |
| } |
| }, |
| addSeq: function (word, data) { |
| fs.addToTrie(seq, word, data); |
| }, |
| remSeq: function (word) { |
| fs.removeFromTrie(seq, word); |
| }, |
| gestureNotes: function (g) { |
| if (g === undefined) { |
| return keyHandler.viewGestures; |
| } else { |
| keyHandler.viewGestures = fs.isA(g) || []; |
| } |
| }, |
| enableKeys: function (b) { |
| enabled = b; |
| }, |
| enableGlobalKeys: function (b) { |
| globalEnabled = b; |
| }, |
| checkNotGlobal: checkNotGlobal |
| }; |
| }]); |
| |
| }()); |