diff options
| author | wei <> | 2006-08-12 12:54:27 +0000 |
|---|---|---|
| committer | wei <> | 2006-08-12 12:54:27 +0000 |
| commit | 1180e6486139a9c9662984367c4f624394e06f35 (patch) | |
| tree | f89a379960284595d5a425e22424582eea57422c /framework/Web/Javascripts/prado | |
| parent | 54d4919e3f1b00b644fa3c107acdf20159a1b154 (diff) | |
Add Triggered Callbacks
Diffstat (limited to 'framework/Web/Javascripts/prado')
| -rw-r--r-- | framework/Web/Javascripts/prado/activecontrols3.js | 120 |
1 files changed, 117 insertions, 3 deletions
diff --git a/framework/Web/Javascripts/prado/activecontrols3.js b/framework/Web/Javascripts/prado/activecontrols3.js index f75d3684..ca1d5b37 100644 --- a/framework/Web/Javascripts/prado/activecontrols3.js +++ b/framework/Web/Javascripts/prado/activecontrols3.js @@ -112,9 +112,9 @@ Prado.WebUI.TAutoComplete = Class.extend(Prado.WebUI.TAutoComplete, });
/**
- * Callback Timer class.
+ * Period Callback class.
*/
-Prado.WebUI.TCallbackTimer = Base.extend(
+Prado.WebUI.TPeriodicCallback = Base.extend(
{
count : 0,
timeout : 0,
@@ -128,7 +128,7 @@ Prado.WebUI.TCallbackTimer = Base.extend( }, options || {})
this.onComplete = this.options.onComplete;
- Prado.WebUI.TCallbackTimer.register(this);
+ Prado.WebUI.TPeriodicCallback.register(this);
},
startTimer : function()
@@ -223,3 +223,117 @@ Prado.WebUI.ActiveListControl = Base.extend( Prado.WebUI.TActiveDropDownList = Prado.WebUI.ActiveListControl;
Prado.WebUI.TActiveListBox = Prado.WebUI.ActiveListControl;
+
+/**
+ * Observe event of a particular control to trigger a callback request.
+ */
+Prado.WebUI.TEventTriggeredCallback = Base.extend(
+{
+ constructor : function(options)
+ {
+ this.options = options;
+ element = $(options['ControlID']);
+ if(element)
+ Event.observe(element, this.getEventName(element), this.doCallback.bind(this));
+ },
+
+ getEventName : function(element)
+ {
+ name = this.options.EventName;
+ if(typeof(name) == "undefined" && element.type)
+ {
+ switch (element.type.toLowerCase())
+ {
+ case 'password':
+ case 'text':
+ case 'textarea':
+ case 'select-one':
+ case 'select-multiple':
+ return 'change';
+ }
+ }
+ return typeof(name) == "undefined" || name == "undefined" ? 'click' : name;
+ },
+
+ doCallback : function(event)
+ {
+ request = new Prado.CallbackRequest(this.options.ID, this.options);
+ request.dispatch();
+ if(this.options.StopEvent == true)
+ Event.stop(event);
+ }
+});
+
+/**
+ * Observe changes to a property of a particular control to trigger a callback.
+ */
+Prado.WebUI.TValueTriggeredCallback = Base.extend(
+{
+ count : 1,
+
+ observing : true,
+
+ constructor : function(options)
+ {
+ this.options = options;
+ this.options.PropertyName = this.options.PropertyName || 'value';
+ element = $(options['ControlID']);
+ this.value = element ? element[this.options.PropertyName] : undefined;
+ Prado.WebUI.TValueTriggeredCallback.register(this);
+ this.startObserving();
+ },
+
+ stopObserving : function()
+ {
+ clearTimeout(this.timer);
+ this.observing = false;
+ },
+
+ startObserving : function()
+ {
+ this.timer = setTimeout(this.checkChanges.bind(this), this.options.Interval*1000);
+ },
+
+ checkChanges : function()
+ {
+ element = $(this.options.ControlID);
+ if(element)
+ {
+ value = element[this.options.PropertyName];
+ if(this.value != value)
+ {
+ this.doCallback(this.value, value);
+ this.value = value;
+ this.count=1;
+ }
+ else
+ this.count = this.count + this.options.Decay;
+ if(this.observing)
+ this.time = setTimeout(this.checkChanges.bind(this),
+ parseInt(this.options.Interval*1000*this.count));
+ }
+ },
+
+ doCallback : function(oldValue, newValue)
+ {
+ request = new Prado.CallbackRequest(this.options.ID, this.options);
+ param = {'OldValue' : oldValue, 'NewValue' : newValue};
+ request.setParameter(param);
+ request.dispatch();
+ }
+},
+//class methods
+{
+ timers : {},
+
+ register : function(timer)
+ {
+ this.timers[timer.options.ID] = timer;
+ },
+
+ stop : function(id)
+ {
+ if(this.timers[id])
+ this.timers[id].stopObserving();
+ }
+});
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