diff options
| author | xue <> | 2005-12-05 01:00:16 +0000 |
|---|---|---|
| committer | xue <> | 2005-12-05 01:00:16 +0000 |
| commit | ccf76e430b7703db028966a845a966f50956f490 (patch) | |
| tree | 9762b746f8b7d432dbe5e5cb8f38f90007e0e1b5 /framework/Web/Javascripts/base/controls.js | |
| parent | 418baf36d477bcbdd6fb4eaf4037ea6a2d93f21c (diff) | |
Diffstat (limited to 'framework/Web/Javascripts/base/controls.js')
| -rw-r--r-- | framework/Web/Javascripts/base/controls.js | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/framework/Web/Javascripts/base/controls.js b/framework/Web/Javascripts/base/controls.js new file mode 100644 index 00000000..6cb908ed --- /dev/null +++ b/framework/Web/Javascripts/base/controls.js @@ -0,0 +1,179 @@ +/**
+ * Auto complete textbox via AJAX.
+ */
+Prado.AutoCompleter = Class.create();
+
+
+/**
+ * Overrides parent implementation of updateElement by trimming the value.
+ */
+Prado.AutoCompleter.Base = function(){};
+Prado.AutoCompleter.Base.prototype = Object.extend(Autocompleter.Base.prototype,
+{
+ updateElement: function(selectedElement)
+ {
+ if (this.options.updateElement) {
+ this.options.updateElement(selectedElement);
+ return;
+ }
+
+ var value = Element.collectTextNodesIgnoreClass(selectedElement, 'informal');
+ var lastTokenPos = this.findLastToken();
+ if (lastTokenPos != -1) {
+ var newValue = this.element.value.substr(0, lastTokenPos + 1);
+ var whitespace = this.element.value.substr(lastTokenPos + 1).match(/^\s+/);
+ if (whitespace)
+ newValue += whitespace[0];
+ this.element.value = (newValue + value).trim();
+ } else {
+ this.element.value = value.trim();
+ }
+ this.element.focus();
+
+ if (this.options.afterUpdateElement)
+ this.options.afterUpdateElement(this.element, selectedElement);
+ }
+});
+
+/**
+ * Based on the Prototype Autocompleter class.
+ * This client-side component should be instantiated from a Prado component.
+ * Usage: <t>new Prado.AutoCompleter('textboxID', 'updateDivID', {callbackID : '...'});
+ */
+Prado.AutoCompleter.prototype = Object.extend(new Autocompleter.Base(),
+{
+ /**
+ * This component is initialized by
+ * <code>new Prado.AutoCompleter(...)</code>
+ * @param string the ID of the textbox element to observe
+ * @param string the ID of the div to display the auto-complete options
+ * @param array a hash of options, e.g. auto-completion token separator.
+ */
+ initialize : function(element, update, options)
+ {
+ this.baseInitialize(element, update, options);
+ },
+
+ /**
+ * The callback function, i.e., function called on successful AJAX return.
+ * Calls update choices in the Autocompleter.
+ * @param string new auto-complete options for display
+ */
+ onUpdateReturn : function(result)
+ {
+ if(isString(result) && result.length > 0)
+ this.updateChoices(result);
+ },
+
+ /**
+ * Requesting new choices using Prado's client-side callback scheme.
+ */
+ getUpdatedChoices : function()
+ {
+ Prado.Callback(this.element.id, this.getToken(), this.onUpdateReturn.bind(this));
+ }
+});
+
+/**
+ * Prado TActivePanel client javascript. Usage
+ * <code>
+ * Prado.ActivePanel.register("id", options);
+ * Prado.ActivePanel.update("id", "hello");
+ * </code>
+ */
+Prado.ActivePanel =
+{
+ callbacks : {},
+
+ register : function(id, options)
+ {
+ Prado.ActivePanel.callbacks[id] = options;
+ },
+
+ update : function(id, param)
+ {
+ var request = new Prado.ActivePanel.Request(id,
+ Prado.ActivePanel.callbacks[id]);
+ request.callback(param);
+ }
+}
+
+/**
+ * Client-script for TActivePanel. Uses Callback to notify the server
+ * for updates, if update option is set, the innerHTML of the update ID
+ * is set to the returned output.
+ */
+Prado.ActivePanel.Request = Class.create();
+Prado.ActivePanel.Request.prototype =
+{
+ initialize : function(element, options)
+ {
+ this.element = element;
+ this.setOptions(options);
+ },
+
+ /**
+ * Set some options.
+ */
+ setOptions : function(options)
+ {
+ this.options =
+ {
+ onSuccess : this.onSuccess.bind(this)
+ }
+ Object.extend(this.options, options || {});
+ },
+
+ /**
+ * Make the callback request
+ */
+ callback : function(param)
+ {
+ this.options.params = [param];
+ new Prado.AJAX.Callback(this.element, this.options);
+ },
+
+ /**
+ * Callback onSuccess handler, update the element innerHTML if necessary
+ */
+ onSuccess : function(result, output)
+ {
+ if(this.options.update)
+ {
+ var element = $(this.options.update)
+ if(element) element.innerHTML = output;
+ }
+ }
+}
+
+/**
+ * Drop container to accept draggable component drops.
+ */
+Prado.DropContainer = Class.create();
+Prado.DropContainer.prototype = Object.extend(new Prado.ActivePanel.Request(),
+{
+ initialize : function(element, options)
+ {
+ this.element = element;
+ this.setOptions(options);
+ Object.extend(this.options,
+ {
+ onDrop : this.onDrop.bind(this),
+ evalScripts : true,
+ onSuccess : options.onSuccess || this.update.bind(this)
+ });
+ Droppables.add(element, this.options);
+ },
+
+ onDrop : function(draggable, droppable)
+ {
+ this.callback(draggable.id)
+ },
+
+ update : function(result, output)
+ {
+ this.onSuccess(result, output);
+ if (this.options.evalScripts)
+ Prado.AJAX.EvalScript(output);
+ }
+});
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