/*\
title: $:/core/modules/startup/windows.js
type: application/javascript
module-type: startup
Setup root widget handlers for the messages concerned with opening external browser windows
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
// Export name and synchronous status
exports.name = "windows";
exports.platforms = ["browser"];
exports.after = ["startup"];
exports.synchronous = true;
// Global to keep track of open windows (hashmap by title)
$tw.windows = {};
exports.startup = function() {
// Handle open window message
$tw.rootWidget.addEventListener("tm-open-window",function(event) {
// Get the parameters
var refreshHandler,
title = event.param || event.tiddlerTitle,
paramObject = event.paramObject || {},
windowTitle = paramObject.windowTitle || title,
template = paramObject.template || "$:/core/templates/single.tiddler.window",
width = paramObject.width || "700",
height = paramObject.height || "600",
variables = $tw.utils.extend({},paramObject,{currentTiddler: title});
// Open the window
var srcWindow,
srcDocument;
// In case that popup blockers deny opening a new window
try {
srcWindow = window.open("","external-" + title,"scrollbars,width=" + width + ",height=" + height),
srcDocument = srcWindow.document;
}
catch(e) {
return;
}
$tw.windows[title] = srcWindow;
// Check for reopening the same window
if(srcWindow.haveInitialisedWindow) {
return;
}
// Initialise the document
srcDocument.write("<html><head></head><body class='tc-body tc-single-tiddler-window'></body></html>");
srcDocument.close();
srcDocument.title = windowTitle;
srcWindow.addEventListener("beforeunload",function(event) {
delete $tw.windows[title];
$tw.wiki.removeEventListener("change",refreshHandler);
},false);
// Set up the styles
var styleWidgetNode = $tw.wiki.makeTranscludeWidget("$:/core/ui/PageStylesheet",{
document: $tw.fakeDocument,
variables: variables,
importPageMacros: true}),
styleContainer = $tw.fakeDocument.createElement("style");
styleWidgetNode.render(styleContainer,null);
var styleElement = srcDocument.createElement("style");
styleElement.innerHTML = styleContainer.textContent;
srcDocument.head.insertBefore(styleElement,srcDocument.head.firstChild);
// Render the text of the tiddler
var parser = $tw.wiki.parseTiddler(template),
widgetNode = $tw.wiki.makeWidget(parser,{document: srcDocument, parentWidget: $tw.rootWidget, variables: variables});
widgetNode.render(srcDocument.body,srcDocument.body.firstChild);
// Function to handle refreshes
refreshHandler = function(changes) {
if(styleWidgetNode.refresh(changes,styleContainer,null)) {
styleElement.innerHTML = styleContainer.textContent;
}
widgetNode.refresh(changes);
};
$tw.wiki.addEventListener("change",refreshHandler);
// Listen for keyboard shortcuts
$tw.utils.addEventListeners(srcDocument,[{
name: "keydown",
handlerObject: $tw.keyboardManager,
handlerMethod: "handleKeydownEvent"
}]);
srcWindow.document.documentElement.addEventListener("click",$tw.popup,true);
srcWindow.haveInitialisedWindow = true;
});
// Close open windows when unloading main window
$tw.addUnloadTask(function() {
$tw.utils.each($tw.windows,function(win) {
win.close();
});
});
};
})();