third_party/pkg/angular/demo/bouncing_balls/web/bouncy_balls.dart - Issue 257423008: Update all Angular libs (run update_all.sh).

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Issue 257423008: Update all Angular libs (run update_all.sh). (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart

Patch Set: Created 6 years, 8 months ago

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1 import 'package:angular/angular.dart';

2 import 'dart:html';

3 import 'dart:math';

4 import 'dart:core';

5

6 var random = new Random();

7 var width = 400;

8 var height = 400;

9 var speed = .05;

10

11 class BallModel {

12 var x = width * random.nextDouble();

13 var y = height * random.nextDouble();

14 var velX = 2 * speed * random.nextDouble() - speed;

15 var velY = 2 * speed * random.nextDouble() - speed;

16 var color = BallModel._color();

17

18 static _color() {

19 var color = '#';

20 for(var i = 0; i < 6; i++) {

21 color += (16 * random.nextDouble()).floor().toRadixString(16);

22 }

23 return color;

24 }

25

26 }

27

28 @NgController(

29 selector: '[bounce-controller]',

30 publishAs: 'bounce')

31 class BounceController {

32 var lastTime = window.performance.now();

33 var run = true;

34 var fps = 0;

35 var digestTime = 0;

36 var currentDigestTime = 0;

37 var balls = [];

38 final NgZone zone;

39 final Scope scope;

40 var ballClassName = 'ball';

41

42 BounceController(this.zone, this.scope) {

43 changeCount(100);

44 tick();

45 }

46

47 void toggleCSS() {

48 ballClassName = ballClassName == '' ? 'ball' : '';

49 }

50

51 void playPause() {

52 run = !run;

53 if (run) requestAnimationFrame(tick);

54 }

55

56 void requestAnimationFrame(fn) {

57 window.requestAnimationFrame((_) => zone.run(fn));

58 }

59

60 void changeCount(count) {

61 while(count > 0) {

62 balls.add(new BallModel());

63 count--;

64 }

65 while(count < 0 && balls.isNotEmpty) {

66 balls.removeAt(0);

67 count++;

68 }

69 //tick();

70 }

71

72 void timeDigest() {

73 var start = window.performance.now();

74 digestTime = currentDigestTime;

75 scope.rootScope.domRead(() {

76 currentDigestTime = window.performance.now() - start;

77 });

78 }

79

80 void tick() {

81 var now = window.performance.now();

82 var delay = now - lastTime;

83

84 fps = (1000/delay).round();

85 for(var i=0, ii=balls.length; i<ii; i++) {

86 var b = balls[i];

87 b.x += delay * b.velX;

88 b.y += delay * b.velY;

89 if (b.x < 0) { b.x = -1; b.velX = -1; }

90 if (b.y < 0) { b.y = -1; b.velY = -1; }

91 if (b.x > width) { b.x = 2width - b.x; b.velX = -1; }

92 if (b.y > height) { b.y = 2height - b.y; b.velY = -1; }

93 }

94 lastTime = now;

95 timeDigest();

96 if (run) requestAnimationFrame(tick);

97 }

98 }

99

100 @NgDirective(

101 selector: '[ball-position]',

102 map: const {

103 "ball-position": '=>position'})

104 class BallPositionDirective {

105 final Element element;

106 final Scope scope;

107 BallPositionDirective(this.element, this.scope);

108

109 set position(BallModel model) {

110 element.style.backgroundColor = model.color;

111 scope

112 ..watch('x', (x, _) => element.style.left = '${x + 10}px', context: mode l, readOnly: true)

113 ..watch('y', (y, _) => element.style.top = '${y + 10}px', context: model , readOnly: true);

114 }

115 }

116

117 class MyModule extends Module {

118 MyModule() {

119 type(BounceController);

120 type(BallPositionDirective);

121 value(GetterCache, new GetterCache({

122 'x': (o) => o.x,

123 'y': (o) => o.y,

124 'bounce': (o) => o.bounce,

125 'fps': (o) => o.fps,

126 'balls': (o) => o.balls,

127 'length': (o) => o.length,

128 'digestTime': (o) => o.digestTime,

129 'ballClassName': (o) => o.ballClassName

130 }));

131 value(ScopeStats, new ScopeStats(report: true));

132 }

133 }

134

135 main() {

136 ngBootstrap(module: new MyModule());

137 }

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