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300 lines (287 loc) · 8.12 KB
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/*!
* Comment Core Library CommentManager
* @license MIT
* @author Jim Chen
*
* Copyright (c) 2014 Jim Chen
*/
var CommentManager = (function() {
var getRotMatrix = function(yrot, zrot) {
// Courtesy of @StarBrilliant, re-adapted to look better
var DEG2RAD = Math.PI/180;
var yr = yrot * DEG2RAD;
var zr = zrot * DEG2RAD;
var COS = Math.cos;
var SIN = Math.sin;
var matrix = [
COS(yr) * COS(zr) , COS(yr) * SIN(zr) , SIN(yr) , 0,
(-SIN(zr)) , COS(zr) , 0 , 0,
(-SIN(yr) * COS(zr)) , (-SIN(yr) * SIN(zr)) , COS(yr) , 0,
0 , 0 , 0 , 1
];
// CSS does not recognize scientific notation (e.g. 1e-6), truncating it.
for(var i = 0; i < matrix.length;i++){
if(Math.abs(matrix[i]) < 0.000001){
matrix[i] = 0;
}
}
return "matrix3d(" + matrix.join(",") + ")";
};
function CommentManager(stageObject){
var __timer = 0;
this._listeners = {};
this._lastPosition = 0;
this.stage = stageObject;
this.options = {
global:{
opacity:1,
scale:1,
className:"cmt"
},
scroll:{
opacity:1,
scale:1
},
limit: 0
};
this.timeline = [];
this.runline = [];
this.position = 0;
this.limiter = 0;
this.filter = null;
this.csa = {
scroll: new CommentSpaceAllocator(0,0),
top:new AnchorCommentSpaceAllocator(0,0),
bottom:new AnchorCommentSpaceAllocator(0,0),
reverse:new CommentSpaceAllocator(0,0),
scrollbtm:new CommentSpaceAllocator(0,0)
};
/** Precompute the offset width **/
this.width = this.stage.offsetWidth;
this.height = this.stage.offsetHeight;
this.startTimer = function(){
if(__timer > 0)
return;
var lastTPos = new Date().getTime();
var cmMgr = this;
__timer = window.setInterval(function(){
var elapsed = new Date().getTime() - lastTPos;
lastTPos = new Date().getTime();
cmMgr.onTimerEvent(elapsed,cmMgr);
},10);
};
this.stopTimer = function(){
window.clearInterval(__timer);
__timer = 0;
};
}
/** Public **/
CommentManager.prototype.stop = function(){
this.stopTimer();
for(var i = 0; i < this.runline.length; i++){
if(typeof this.runline[i].stop !== "undefined"){
this.runline[i].stop();
}
}
};
CommentManager.prototype.start = function(){
this.startTimer();
};
CommentManager.prototype.seek = function(time){
this.position = BinArray.bsearch(this.timeline, time, function(a,b){
if(a < b.stime) return -1
else if(a > b.stime) return 1;
else return 0;
});
};
CommentManager.prototype.validate = function(cmt){
if(cmt == null)
return false;
return this.filter.doValidate(cmt);
};
CommentManager.prototype.load = function(a){
this.timeline = a;
this.timeline.sort(function(a,b){
if(a.stime > b.stime) return 2;
else if(a.stime < b.stime) return -2;
else{
if(a.date > b.date) return 1;
else if(a.date < b.date) return -1;
else if(a.dbid != null && b.dbid != null){
if(a.dbid > b.dbid) return 1;
else if(a.dbid < b.dbid) return -1;
return 0;
}else
return 0;
}
});
this.dispatchEvent("load");
};
CommentManager.prototype.insert = function(c){
var index = BinArray.binsert(this.timeline, c, function(a,b){
if(a.stime > b.stime) return 2;
else if(a.stime < b.stime) return -2;
else{
if(a.date > b.date) return 1;
else if(a.date < b.date) return -1;
else if(a.dbid != null && b.dbid != null){
if(a.dbid > b.dbid) return 1;
else if(a.dbid < b.dbid) return -1;
return 0;
}else
return 0;
}
});
if(index <= this.position){
this.position++;
}
this.dispatchEvent("insert");
};
CommentManager.prototype.clear = function(){
while(this.runline.length > 0){
this.runline[0].finish();
}
this.dispatchEvent("clear");
};
CommentManager.prototype.setBounds = function(){
this.width = this.stage.offsetWidth;
this.height= this.stage.offsetHeight;
this.dispatchEvent("resize");
for(var comAlloc in this.csa){
this.csa[comAlloc].setBounds(this.width,this.height);
}
// Update 3d perspective
this.stage.style.perspective = this.width * Math.tan(40 * Math.PI/180) / 2 + "px";
this.stage.style.webkitPerspective = this.width * Math.tan(40 * Math.PI/180) / 2 + "px";
};
CommentManager.prototype.init = function(){
this.setBounds();
if(this.filter == null) {
this.filter = new CommentFilter(); //Only create a filter if none exist
}
};
CommentManager.prototype.time = function(time){
time = time - 1;
if(this.position >= this.timeline.length || Math.abs(this._lastPosition - time) >= 2000){
this.seek(time);
this._lastPosition = time;
if(this.timeline.length <= this.position) {
return;
}
}else{
this._lastPosition = time;
}
for(;this.position < this.timeline.length;this.position++){
if(this.timeline[this.position]['stime']<=time){
if(this.options.limit > 0 && this.runline.length > this.limiter) {
continue; // Skip comments but still move the position pointer
} else if(this.validate(this.timeline[this.position])){
this.send(this.timeline[this.position]);
}
}else{
break;
}
}
};
CommentManager.prototype.rescale = function(){
};
CommentManager.prototype.send = function(data){
if(data.mode === 8){
console.log(data);
if(this.scripting){
console.log(this.scripting.eval(data.code));
}
return;
}
if(this.filter != null){
data = this.filter.doModify(data);
if(data == null) return;
}
if(data.mode === 1 || data.mode === 2 || data.mode === 6){
var cmt = new CSSScrollComment(this, data);
}else{
var cmt = new CoreComment(this, data);
}
switch(cmt.mode){
case 1:cmt.align = 0;break;
case 2:cmt.align = 2;break;
case 4:cmt.align = 2;break;
case 5:cmt.align = 0;break;
case 6:cmt.align = 1;break;
}
cmt.init();
this.stage.appendChild(cmt.dom);
switch(cmt.mode){
default:
case 1:{this.csa.scroll.add(cmt);}break;
case 2:{this.csa.scrollbtm.add(cmt);}break;
case 4:{this.csa.bottom.add(cmt);}break;
case 5:{this.csa.top.add(cmt);}break;
case 6:{this.csa.reverse.add(cmt);}break;
case 17:
case 7:{
if(data.rY !== 0 || data.rZ !== 0){
/** TODO: revise when browser manufacturers make up their mind on Transform APIs **/
cmt.dom.style.transform = getRotMatrix(data.rY, data.rZ);
cmt.dom.style.webkitTransform = getRotMatrix(data.rY, data.rZ);
cmt.dom.style.OTransform = getRotMatrix(data.rY, data.rZ);
cmt.dom.style.MozTransform = getRotMatrix(data.rY, data.rZ);
cmt.dom.style.MSTransform = getRotMatrix(data.rY, data.rZ);
}
}break;
}
cmt.y = cmt.y;
this.dispatchEvent("enterComment", cmt);
this.runline.push(cmt);
};
CommentManager.prototype.sendComment = function(data){
console.log("CommentManager.sendComment is deprecated. Please use send instead");
this.send(data); // Wrapper for Backwards Compatible APIs
};
CommentManager.prototype.finish = function(cmt){
this.dispatchEvent("exitComment", cmt);
this.stage.removeChild(cmt.dom);
var index = this.runline.indexOf(cmt);
if(index >= 0){
this.runline.splice(index, 1);
}
switch(cmt.mode){
default:
case 1:{this.csa.scroll.remove(cmt);}break;
case 2:{this.csa.scrollbtm.remove(cmt);}break;
case 4:{this.csa.bottom.remove(cmt);}break;
case 5:{this.csa.top.remove(cmt);}break;
case 6:{this.csa.reverse.remove(cmt);}break;
case 7:break;
}
};
CommentManager.prototype.addEventListener = function(event, listener){
if(typeof this._listeners[event] !== "undefined"){
this._listeners[event].push(listener);
}else{
this._listeners[event] = [listener];
}
};
CommentManager.prototype.dispatchEvent = function(event, data){
if(typeof this._listeners[event] !== "undefined"){
for(var i = 0; i < this._listeners[event].length; i++){
try{
this._listeners[event][i](data);
}catch(e){
console.err(e.stack);
}
}
}
};
/** Static Functions **/
CommentManager.prototype.onTimerEvent = function(timePassed,cmObj){
for(var i= 0;i < cmObj.runline.length; i++){
var cmt = cmObj.runline[i];
if(cmt.hold){
continue;
}
cmt.time(timePassed);
}
};
return CommentManager;
})();