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https://github.com/Jermolene/TiddlyWiki5
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d93c19daaa
In 5.1.3 we introduced the idea that the `event.param` variable could optionally be a hashmap, allowing multiple values to be passed with the message. This change moves the hashmap to a separate `event.paramObject` variable, allowing us to pass both a hashmap and a param string.
77 lines
1.8 KiB
JavaScript
77 lines
1.8 KiB
JavaScript
/*\
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title: $:/core/modules/widgets/action-sendmessage.js
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type: application/javascript
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module-type: widget
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Action widget to send a message
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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var Widget = require("$:/core/modules/widgets/widget.js").widget;
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var SendMessageWidget = function(parseTreeNode,options) {
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this.initialise(parseTreeNode,options);
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};
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/*
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Inherit from the base widget class
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*/
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SendMessageWidget.prototype = new Widget();
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/*
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Render this widget into the DOM
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*/
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SendMessageWidget.prototype.render = function(parent,nextSibling) {
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this.computeAttributes();
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this.execute();
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};
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/*
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Compute the internal state of the widget
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*/
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SendMessageWidget.prototype.execute = function() {
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this.actionMessage = this.getAttribute("$message");
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this.actionParam = this.getAttribute("$param");
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};
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/*
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Refresh the widget by ensuring our attributes are up to date
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*/
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SendMessageWidget.prototype.refresh = function(changedTiddlers) {
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var changedAttributes = this.computeAttributes();
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if(changedAttributes["$message"] || changedAttributes["$param"]) {
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this.refreshSelf();
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return true;
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}
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return this.refreshChildren(changedTiddlers);
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};
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/*
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Invoke the action associated with this widget
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*/
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SendMessageWidget.prototype.invokeAction = function(triggeringWidget,event) {
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// Get the string parameter
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var param = this.actionParam;
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// Assemble the attributes as a hashmap
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var paramObject = Object.create(null);
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var count = 0;
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$tw.utils.each(this.attributes,function(attribute,name) {
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if(name.charAt(0) !== "$") {
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paramObject[name] = attribute;
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count++;
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}
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});
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// Dispatch the message
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this.dispatchEvent({type: this.actionMessage, param: param, paramObject: paramObject, tiddlerTitle: this.getVariable("currentTiddler")});
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return true; // Action was invoked
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};
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exports["action-sendmessage"] = SendMessageWidget;
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})();
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