| Chris Craik | 44c2820 | 2015-05-12 17:25:16 -0700 | [diff] [blame^] | 1 | <!DOCTYPE html> |
| 2 | <!-- |
| 3 | Copyright (c) 2015 The Chromium Authors. All rights reserved. |
| 4 | Use of this source code is governed by a BSD-style license that can be |
| 5 | found in the LICENSE file. |
| 6 | --> |
| 7 | <link rel="import" href="/core/selection.html"> |
| 8 | |
| 9 | |
| 10 | <script> |
| 11 | 'use strict'; |
| 12 | |
| 13 | tv.exportTo('tv.c.analysis', function() { |
| 14 | var FLOW_IN = 0x1; |
| 15 | var FLOW_OUT = 0x2; |
| 16 | var FLOW_IN_OUT = FLOW_IN | FLOW_OUT; |
| 17 | |
| 18 | function FlowClassifier() { |
| 19 | this.numEvents_ = 0; |
| 20 | this.eventsByGUID_ = {}; |
| 21 | } |
| 22 | |
| 23 | FlowClassifier.prototype = { |
| 24 | getFS_: function(event) { |
| 25 | var fs = this.eventsByGUID_[event.guid]; |
| 26 | if (fs === undefined) { |
| 27 | this.numEvents_++; |
| 28 | fs = { |
| 29 | state: 0, |
| 30 | event: event |
| 31 | }; |
| 32 | this.eventsByGUID_[event.guid] = fs; |
| 33 | } |
| 34 | return fs; |
| 35 | }, |
| 36 | |
| 37 | addInFlow: function(event) { |
| 38 | var fs = this.getFS_(event); |
| 39 | fs.state |= FLOW_IN; |
| 40 | return event; |
| 41 | }, |
| 42 | |
| 43 | addOutFlow: function(event) { |
| 44 | var fs = this.getFS_(event); |
| 45 | fs.state |= FLOW_OUT; |
| 46 | return event; |
| 47 | }, |
| 48 | |
| 49 | get hasEvents() { |
| 50 | return this.numEvents_ > 0; |
| 51 | }, |
| 52 | |
| 53 | get inFlowEvents() { |
| 54 | var selection = new tv.c.Selection(); |
| 55 | for (var guid in this.eventsByGUID_) { |
| 56 | var fs = this.eventsByGUID_[guid]; |
| 57 | if (fs.state === FLOW_IN) |
| 58 | selection.push(fs.event); |
| 59 | } |
| 60 | return selection; |
| 61 | }, |
| 62 | |
| 63 | get outFlowEvents() { |
| 64 | var selection = new tv.c.Selection(); |
| 65 | for (var guid in this.eventsByGUID_) { |
| 66 | var fs = this.eventsByGUID_[guid]; |
| 67 | if (fs.state === FLOW_OUT) |
| 68 | selection.push(fs.event); |
| 69 | } |
| 70 | return selection; |
| 71 | }, |
| 72 | |
| 73 | get internalFlowEvents() { |
| 74 | var selection = new tv.c.Selection(); |
| 75 | for (var guid in this.eventsByGUID_) { |
| 76 | var fs = this.eventsByGUID_[guid]; |
| 77 | if (fs.state === FLOW_IN_OUT) |
| 78 | selection.push(fs.event); |
| 79 | } |
| 80 | return selection; |
| 81 | } |
| 82 | }; |
| 83 | |
| 84 | return { |
| 85 | FlowClassifier: FlowClassifier |
| 86 | }; |
| 87 | }); |
| 88 | </script> |
| 89 | |