mirror of
https://github.com/Jermolene/TiddlyWiki5
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100 lines
2.5 KiB
JavaScript
100 lines
2.5 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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this.actionName = this.getAttribute("$name");
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this.actionValue = this.getAttribute("$value","");
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this.actionNames = this.getAttribute("$names");
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this.actionValues = this.getAttribute("$values");
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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(Object.keys(changedAttributes).length) {
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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 parameters as a hashmap
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var paramObject = Object.create(null);
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// Add names/values pairs if present
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if(this.actionNames && this.actionValues) {
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var names = this.wiki.filterTiddlers(this.actionNames,this),
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values = this.wiki.filterTiddlers(this.actionValues,this);
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$tw.utils.each(names,function(name,index) {
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paramObject[name] = values[index] || "";
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});
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}
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// Add raw parameters
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$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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}
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});
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// Add name/value pair if present
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if(this.actionName) {
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paramObject[this.actionName] = this.actionValue;
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}
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// Dispatch the message
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var params = {
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type: this.actionMessage,
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param: param,
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paramObject: paramObject,
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event: event,
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tiddlerTitle: this.getVariable("currentTiddler"),
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navigateFromTitle: this.getVariable("storyTiddler")
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};
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this.dispatchEvent(params);
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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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