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authormensonge <mensonge@b3834d28-1941-0410-a4f8-b48e95affb8f>2008-11-13 09:49:11 +0000
committermensonge <mensonge@b3834d28-1941-0410-a4f8-b48e95affb8f>2008-11-13 09:49:11 +0000
commite44a7e37b6c7b5961adaffc62b9042b8d442938e (patch)
tree95b67c356e93163467db2451f2b8cce84ed5d582 /includes/js/dojo/data/util
parenta62b9742ee5e28bcec6872d88f50f25b820914f6 (diff)
downloadsemanticscuttle-e44a7e37b6c7b5961adaffc62b9042b8d442938e.tar.gz
semanticscuttle-e44a7e37b6c7b5961adaffc62b9042b8d442938e.tar.bz2
New feature: basic Ajax suggestion for tags and implementation of Dojo toolkit
git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@151 b3834d28-1941-0410-a4f8-b48e95affb8f
Diffstat (limited to 'includes/js/dojo/data/util')
-rw-r--r--includes/js/dojo/data/util/filter.js69
-rw-r--r--includes/js/dojo/data/util/simpleFetch.js90
-rw-r--r--includes/js/dojo/data/util/sorter.js81
3 files changed, 240 insertions, 0 deletions
diff --git a/includes/js/dojo/data/util/filter.js b/includes/js/dojo/data/util/filter.js
new file mode 100644
index 0000000..125d264
--- /dev/null
+++ b/includes/js/dojo/data/util/filter.js
@@ -0,0 +1,69 @@
+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(/*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,"i"); //RegExp
+ }else{
+ return new RegExp(rxp); //RegExp
+ }
+
+};
+
+}
diff --git a/includes/js/dojo/data/util/simpleFetch.js b/includes/js/dojo/data/util/simpleFetch.js
new file mode 100644
index 0000000..f54d763
--- /dev/null
+++ b/includes/js/dojo/data/util/simpleFetch.js
@@ -0,0 +1,90 @@
+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(/* 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?(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
+};
+
+}
diff --git a/includes/js/dojo/data/util/sorter.js b/includes/js/dojo/data/util/sorter.js
new file mode 100644
index 0000000..e13fedc
--- /dev/null
+++ b/includes/js/dojo/data/util/sorter.js
@@ -0,0 +1,81 @@
+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( /*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.
+ // undefined values are treated as larger values so that they're pushed to the end of the list.
+
+ var ret = 0;
+ if(a > b || typeof a === "undefined" || a === null){
+ ret = 1;
+ }else if(a < b || typeof b === "undefined" || b === null){
+ ret = -1;
+ }
+ return ret; //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){
+ return function(itemA, itemB){
+ var a = store.getValue(itemA, attr);
+ var b = store.getValue(itemB, attr);
+ //See if we have a override for an attribute comparison.
+ var comparator = null;
+ if(store.comparatorMap){
+ if(typeof attr !== "string"){
+ attr = store.getIdentity(attr);
+ }
+ comparator = store.comparatorMap[attr]||dojo.data.util.sorter.basicComparator;
+ }
+ comparator = comparator||dojo.data.util.sorter.basicComparator;
+ return dir * comparator(a,b); //int
+ };
+ }
+
+ for(var i = 0; i < sortSpec.length; i++){
+ sortAttribute = sortSpec[i];
+ if(sortAttribute.attribute){
+ var direction = (sortAttribute.descending) ? -1 : 1;
+ sortFunctions.push(createSortFunction(sortAttribute.attribute, direction));
+ }
+ }
+
+ 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
+};
+
+}