public/tt-rss
1
0
Fork 0
mirror of https://git.tt-rss.org/git/tt-rss.git synced 2025-12-21 03:31:30 +00:00
Code Issues Releases Wiki Activity

build custom layer of Dojo to speed up loading of tt-rss (refs #293)

Browse Source
This commit is contained in:
Andrew Dolgov
2011-03-04 19:02:28 +03:00
parent cfad9259a6
commit a089699c89
144 changed files with 55627 additions and 13766 deletions
Download Patch File Download Diff File Expand all files Collapse all files

108
lib/dojo/data/util/filter.js
View File

@@ -5,48 +5,72 @@
*/
if(!dojo._hasResource["dojo.data.util.filter"]){
dojo._hasResource["dojo.data.util.filter"]=true;
if(!dojo._hasResource["dojo.data.util.filter"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["dojo.data.util.filter"] = true;
dojo.provide("dojo.data.util.filter");
dojo.data.util.filter.patternToRegExp=function(_1,_2){
var _3="^";
var c=null;
for(var i=0;i<_1.length;i++){
c=_1.charAt(i);
switch(c){
case "\\":
_3+=c;
i++;
_3+=_1.charAt(i);
break;
case "*":
_3+=".*";
break;
case "?":
_3+=".";
break;
case "$":
case "^":
case "/":
case "+":
case ".":
case "|":
case "(":
case ")":
case "{":
case "}":
case "[":
case "]":
_3+="\\";
default:
_3+=c;
}
}
_3+="$";
if(_2){
return new RegExp(_3,"mi");
}else{
return new RegExp(_3,"m");
}
dojo.data.util.filter.patternToRegExp = function(/*String*/pattern, /*boolean?*/ ignoreCase){
// summary:
// Helper function to convert a simple pattern to a regular expression for matching.
// description:
// Returns a regular expression object that conforms to the defined conversion rules.
// For example:
// ca* -> /^ca.*$/
// *ca* -> /^.*ca.*$/
// *c\*a* -> /^.*c\*a.*$/
// *c\*a?* -> /^.*c\*a..*$/
// and so on.
//
// pattern: string
// A simple matching pattern to convert that follows basic rules:
// * Means match anything, so ca* means match anything starting with ca
// ? Means match single character. So, b?b will match to bob and bab, and so on.
// \ is an escape character. So for example, \* means do not treat * as a match, but literal character *.
// To use a \ as a character in the string, it must be escaped. So in the pattern it should be
// represented by \\ to be treated as an ordinary \ character instead of an escape.
//
// ignoreCase:
// An optional flag to indicate if the pattern matching should be treated as case-sensitive or not when comparing
// By default, it is assumed case sensitive.
var rxp = "^";
var c = null;
for(var i = 0; i < pattern.length; i++){
c = pattern.charAt(i);
switch(c){
case '\\':
rxp += c;
i++;
rxp += pattern.charAt(i);
break;
case '*':
rxp += ".*"; break;
case '?':
rxp += "."; break;
case '$':
case '^':
case '/':
case '+':
case '.':
case '|':
case '(':
case ')':
case '{':
case '}':
case '[':
case ']':
rxp += "\\"; //fallthrough
default:
rxp += c;
}
}
rxp += "$";
if(ignoreCase){
return new RegExp(rxp,"mi"); //RegExp
}else{
return new RegExp(rxp,"m"); //RegExp
}
};
}

139
lib/dojo/data/util/simpleFetch.js
View File

@@ -5,60 +5,93 @@
*/
if(!dojo._hasResource["dojo.data.util.simpleFetch"]){
dojo._hasResource["dojo.data.util.simpleFetch"]=true;
if(!dojo._hasResource["dojo.data.util.simpleFetch"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["dojo.data.util.simpleFetch"] = true;
dojo.provide("dojo.data.util.simpleFetch");
dojo.require("dojo.data.util.sorter");
dojo.data.util.simpleFetch.fetch=function(_1){
_1=_1||{};
if(!_1.store){
_1.store=this;
}
var _2=this;
var _3=function(_4,_5){
if(_5.onError){
var _6=_5.scope||dojo.global;
_5.onError.call(_6,_4,_5);
}
};
var _7=function(_8,_9){
var _a=_9.abort||null;
var _b=false;
var _c=_9.start?_9.start:0;
var _d=(_9.count&&(_9.count!==Infinity))?(_c+_9.count):_8.length;
_9.abort=function(){
_b=true;
if(_a){
_a.call(_9);
}
};
var _e=_9.scope||dojo.global;
if(!_9.store){
_9.store=_2;
}
if(_9.onBegin){
_9.onBegin.call(_e,_8.length,_9);
}
if(_9.sort){
_8.sort(dojo.data.util.sorter.createSortFunction(_9.sort,_2));
}
if(_9.onItem){
for(var i=_c;(i<_8.length)&&(i<_d);++i){
var _f=_8[i];
if(!_b){
_9.onItem.call(_e,_f,_9);
}
}
}
if(_9.onComplete&&!_b){
var _10=null;
if(!_9.onItem){
_10=_8.slice(_c,_d);
}
_9.onComplete.call(_e,_10,_9);
}
};
this._fetchItems(_1,_7,_3);
return _1;
dojo.data.util.simpleFetch.fetch = function(/* Object? */ request){
// summary:
// The simpleFetch mixin is designed to serve as a set of function(s) that can
// be mixed into other datastore implementations to accelerate their development.
// The simpleFetch mixin should work well for any datastore that can respond to a _fetchItems()
// call by returning an array of all the found items that matched the query. The simpleFetch mixin
// is not designed to work for datastores that respond to a fetch() call by incrementally
// loading items, or sequentially loading partial batches of the result
// set. For datastores that mixin simpleFetch, simpleFetch
// implements a fetch method that automatically handles eight of the fetch()
// arguments -- onBegin, onItem, onComplete, onError, start, count, sort and scope
// The class mixing in simpleFetch should not implement fetch(),
// but should instead implement a _fetchItems() method. The _fetchItems()
// method takes three arguments, the keywordArgs object that was passed
// to fetch(), a callback function to be called when the result array is
// available, and an error callback to be called if something goes wrong.
// The _fetchItems() method should ignore any keywordArgs parameters for
// start, count, onBegin, onItem, onComplete, onError, sort, and scope.
// The _fetchItems() method needs to correctly handle any other keywordArgs
// parameters, including the query parameter and any optional parameters
// (such as includeChildren). The _fetchItems() method should create an array of
// result items and pass it to the fetchHandler along with the original request object
// -- or, the _fetchItems() method may, if it wants to, create an new request object
// with other specifics about the request that are specific to the datastore and pass
// that as the request object to the handler.
//
// For more information on this specific function, see dojo.data.api.Read.fetch()
request = request || {};
if(!request.store){
request.store = this;
}
var self = this;
var _errorHandler = function(errorData, requestObject){
if(requestObject.onError){
var scope = requestObject.scope || dojo.global;
requestObject.onError.call(scope, errorData, requestObject);
}
};
var _fetchHandler = function(items, requestObject){
var oldAbortFunction = requestObject.abort || null;
var aborted = false;
var startIndex = requestObject.start?requestObject.start:0;
var endIndex = (requestObject.count && (requestObject.count !== Infinity))?(startIndex + requestObject.count):items.length;
requestObject.abort = function(){
aborted = true;
if(oldAbortFunction){
oldAbortFunction.call(requestObject);
}
};
var scope = requestObject.scope || dojo.global;
if(!requestObject.store){
requestObject.store = self;
}
if(requestObject.onBegin){
requestObject.onBegin.call(scope, items.length, requestObject);
}
if(requestObject.sort){
items.sort(dojo.data.util.sorter.createSortFunction(requestObject.sort, self));
}
if(requestObject.onItem){
for(var i = startIndex; (i < items.length) && (i < endIndex); ++i){
var item = items[i];
if(!aborted){
requestObject.onItem.call(scope, item, requestObject);
}
}
}
if(requestObject.onComplete && !aborted){
var subset = null;
if(!requestObject.onItem){
subset = items.slice(startIndex, endIndex);
}
requestObject.onComplete.call(scope, subset, requestObject);
}
};
this._fetchItems(request, _fetchHandler, _errorHandler);
return request; // Object
};
}

146
lib/dojo/data/util/sorter.js
View File

@@ -5,62 +5,98 @@
*/
if(!dojo._hasResource["dojo.data.util.sorter"]){
dojo._hasResource["dojo.data.util.sorter"]=true;
if(!dojo._hasResource["dojo.data.util.sorter"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["dojo.data.util.sorter"] = true;
dojo.provide("dojo.data.util.sorter");
dojo.data.util.sorter.basicComparator=function(a,b){
var r=-1;
if(a===null){
a=undefined;
}
if(b===null){
b=undefined;
}
if(a==b){
r=0;
}else{
if(a>b||a==null){
r=1;
}
}
return r;
};
dojo.data.util.sorter.createSortFunction=function(_1,_2){
var _3=[];
function _4(_5,_6,_7,s){
return function(_8,_9){
var a=s.getValue(_8,_5);
var b=s.getValue(_9,_5);
return _6*_7(a,b);
};
};
var _a;
var _b=_2.comparatorMap;
var bc=dojo.data.util.sorter.basicComparator;
for(var i=0;i<_1.length;i++){
_a=_1[i];
var _c=_a.attribute;
if(_c){
var _d=(_a.descending)?-1:1;
var _e=bc;
if(_b){
if(typeof _c!=="string"&&("toString" in _c)){
_c=_c.toString();
}
_e=_b[_c]||bc;
}
_3.push(_4(_c,_d,_e,_2));
}
}
return function(_f,_10){
var i=0;
while(i<_3.length){
var ret=_3[i++](_f,_10);
if(ret!==0){
return ret;
}
}
return 0;
dojo.data.util.sorter.basicComparator = function( /*anything*/ a,
/*anything*/ b){
// summary:
// Basic comparision function that compares if an item is greater or less than another item
// description:
// returns 1 if a > b, -1 if a < b, 0 if equal.
// 'null' values (null, undefined) are treated as larger values so that they're pushed to the end of the list.
// And compared to each other, null is equivalent to undefined.
//null is a problematic compare, so if null, we set to undefined.
//Makes the check logic simple, compact, and consistent
//And (null == undefined) === true, so the check later against null
//works for undefined and is less bytes.
var r = -1;
if(a === null){
a = undefined;
}
if(b === null){
b = undefined;
}
if(a == b){
r = 0;
}else if(a > b || a == null){
r = 1;
}
return r; //int {-1,0,1}
};
dojo.data.util.sorter.createSortFunction = function( /* attributes array */sortSpec,
/*dojo.data.core.Read*/ store){
// summary:
// Helper function to generate the sorting function based off the list of sort attributes.
// description:
// The sort function creation will look for a property on the store called 'comparatorMap'. If it exists
// it will look in the mapping for comparisons function for the attributes. If one is found, it will
// use it instead of the basic comparator, which is typically used for strings, ints, booleans, and dates.
// Returns the sorting function for this particular list of attributes and sorting directions.
//
// sortSpec: array
// A JS object that array that defines out what attribute names to sort on and whether it should be descenting or asending.
// The objects should be formatted as follows:
// {
// attribute: "attributeName-string" || attribute,
// descending: true|false; // Default is false.
// }
// store: object
// The datastore object to look up item values from.
//
var sortFunctions=[];
function createSortFunction(attr, dir, comp, s){
//Passing in comp and s (comparator and store), makes this
//function much faster.
return function(itemA, itemB){
var a = s.getValue(itemA, attr);
var b = s.getValue(itemB, attr);
return dir * comp(a,b); //int
};
}
var sortAttribute;
var map = store.comparatorMap;
var bc = dojo.data.util.sorter.basicComparator;
for(var i = 0; i < sortSpec.length; i++){
sortAttribute = sortSpec[i];
var attr = sortAttribute.attribute;
if(attr){
var dir = (sortAttribute.descending) ? -1 : 1;
var comp = bc;
if(map){
if(typeof attr !== "string" && ("toString" in attr)){
attr = attr.toString();
}
comp = map[attr] || bc;
}
sortFunctions.push(createSortFunction(attr,
dir, comp, store));
}
}
return function(rowA, rowB){
var i=0;
while(i < sortFunctions.length){
var ret = sortFunctions[i++](rowA, rowB);
if(ret !== 0){
return ret;//int
}
}
return 0; //int
}; // Function
};
}