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/* <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(rules) {
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;
}
}
});
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