1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
/* <copyright>
This file contains proprietary software owned by Motorola Mobility, Inc.<br/>
No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.<br/>
(c) Copyright 2011 Motorola Mobility, Inc. All Rights Reserved.
</copyright> */
var Montage = require("montage/core/core").Montage,
Component = require("montage/ui/component").Component;
exports.RuleList = Montage.create(Component, {
focusDelegate : { value: null },
ruleNodeName : { value: 'li' },
_needsScrollToBottom: { value: null },
_rules: { value: null },
rules: {
get: function() {
return this._rules;
},
set: function(list) {
if(!list) {
return null;
}
//debugger;
console.log('list: ', list);
this._rules = list;
///// remove previously added rules
if(this.childComponents){
this.childComponents.forEach(function(ruleComponent) {
this.removeRule(ruleComponent);
}, this);
}
this._rules.forEach(function(rule) {
this.addRule(rule);
}, this);
this.needsDraw = true;
}
},
childComponents : {
value: [],
distinct: true
},
rulesToDraw : {
value: [],
distinct: true
},
rulesToRemove : {
value: [],
distinct: true
},
addRule: {
value: function(rule) {
var componentBase = this.supportedRules[rule.type],
instance, el;
///// Draw the rule if we have a template for the rule type
if(componentBase) {
instance = Montage.create(componentBase);
instance.rule = rule;
if(this.focusDelegate) {
instance.focusDelegate = this.focusDelegate;
}
this.rulesToDraw.push(instance);
this.needsDraw = true;
}
return instance;
}
},
removeRule : {
value: function(rule) {
this.childComponents.splice(this.childComponents.indexOf(rule), 1);
this.rulesToRemove.push(rule);
this.needsDraw = true;
}
},
update : {
value: function() {
this.childComponents.forEach(function(component) {
component.update();
}, this);
//// TODO: find new styles based on selection
}
},
willDraw : {
value: function() {
this.rulesToDraw.forEach(function(component) {
component.element = document.createElement(this.ruleNodeName);
}, this);
}
},
draw : {
value: function() {
///// If needed, scroll to bottom
if(this._needsScrollToBottom) {
///// Make sure the appended rule item is visible (scrolled-to)
this.element.scrollTop = this.element.offsetHeight;
console.log("Scroll top:", this.element.scrollTop);
this._needsScrollToBottom = false;
}
//// Iterate through all rules that need draw and append them
this.rulesToDraw.forEach(function(component) {
this.element.appendChild(component.element);
this._needsScrollToBottom = this.needsDraw = true;
this.childComponents.push(component);
component.needsDraw = true;
}, this);
//// Iterate through all rules that need draw and append them
this.rulesToRemove.forEach(function(component) {
this.element.removeChild(component.element);
}, this);
///// Null out any rules that were just drawn
this.rulesToDraw.length = 0;
this.rulesToRemove.length = 0;
}
}
});
|