Stackedit/public/res/eventMgr.js
2016-03-01 00:38:52 +00:00

328 lines
11 KiB
JavaScript

define([
"jquery",
"underscore",
"crel",
"mousetrap",
"utils",
"logger",
"classes/Extension",
"settings",
"text!html/settingsExtensionsAccordion.html",
"extensions/yamlFrontMatterParser",
"extensions/markdownSectionParser",
"extensions/partialRendering",
"extensions/buttonMarkdownSyntax",
"extensions/googleAnalytics",
"extensions/twitter",
"extensions/dialogAbout",
"extensions/dialogManagePublication",
"extensions/dialogManageSynchronization",
"extensions/dialogManageSharing",
"extensions/dialogOpenHarddrive",
"extensions/documentTitle",
"extensions/documentSelector",
"extensions/documentPanel",
"extensions/documentManager",
"extensions/workingIndicator",
"extensions/notifications",
"extensions/umlDiagrams",
"extensions/markdownExtra",
"extensions/toc",
"extensions/mathJax",
"extensions/emailConverter",
"extensions/scrollSync",
"extensions/buttonSync",
"extensions/buttonPublish",
"extensions/buttonStat",
"extensions/buttonHtmlCode",
"extensions/buttonViewer",
"extensions/welcomeTour",
"extensions/shortcuts",
"extensions/userCustom",
"extensions/comments",
"extensions/findReplace",
"extensions/htmlSanitizer",
"bootstrap",
"jquery-waitforimages"
], function($, _, crel, mousetrap, utils, logger, Extension, settings, settingsExtensionsAccordionHTML) {
var eventMgr = {};
// Create a list of extensions from module arguments
var extensionList = _.chain(arguments).map(function(argument) {
return argument instanceof Extension && argument;
}).compact().value();
// Configure extensions
var extensionSettings = settings.extensionSettings || {};
_.each(extensionList, function(extension) {
// Set the extension.config attribute from settings or default
// configuration
extension.config = _.extend({}, extension.defaultConfig, extensionSettings[extension.extensionId]);
if(window.viewerMode === true && extension.disableInViewer === true) {
// Skip enabling the extension if we are in the viewer and extension
// doesn't support it
extension.enabled = false;
}
else {
// Enable the extension if it's not optional or it has not been
// disabled by the user
extension.enabled = !extension.isOptional || extension.config.enabled === undefined || extension.config.enabled === true;
}
});
// Returns all listeners with the specified name that are implemented in the
// enabled extensions
function getExtensionListenerList(eventName) {
return _.chain(extensionList).map(function(extension) {
return extension.enabled && extension[eventName];
}).compact().value();
}
// Returns a function that calls every listeners with the specified name
// from all enabled extensions
var eventListenerListMap = {};
function createEventHook(eventName) {
eventListenerListMap[eventName] = getExtensionListenerList(eventName);
return function() {
logger.log(eventName, arguments);
var eventArguments = arguments;
_.each(eventListenerListMap[eventName], function(listener) {
// Use try/catch in case userCustom listener contains error
try {
listener.apply(null, eventArguments);
}
catch(e) {
console.error(_.isObject(e) ? e.stack : e);
}
});
};
}
// Declare an event Hook in the eventMgr that we can fire using eventMgr.eventName()
function addEventHook(eventName) {
eventMgr[eventName] = createEventHook(eventName);
}
// Used by external modules (not extensions) to listen to events
eventMgr.addListener = function(eventName, listener) {
try {
eventListenerListMap[eventName].push(listener);
}
catch(e) {
console.error('No event listener called ' + eventName);
}
};
// Call every onInit listeners (enabled extensions only)
createEventHook("onInit")();
// Load/Save extension config from/to settings
eventMgr.onLoadSettings = function() {
logger.log("onLoadSettings");
_.each(extensionList, function(extension) {
var isChecked = !extension.isOptional || extension.config.enabled === undefined || extension.config.enabled === true;
utils.setInputChecked("#input-enable-extension-" + extension.extensionId, isChecked);
// Special case for Markdown Extra and MathJax
if(extension.extensionId == 'markdownExtra') {
utils.setInputChecked("#input-settings-markdown-extra", isChecked);
}
else if(extension.extensionId == 'mathJax') {
utils.setInputChecked("#input-settings-mathjax", isChecked);
}
var onLoadSettingsListener = extension.onLoadSettings;
onLoadSettingsListener && onLoadSettingsListener();
});
};
eventMgr.onSaveSettings = function(newExtensionSettings, event) {
logger.log("onSaveSettings");
_.each(extensionList, function(extension) {
var newExtensionConfig = _.extend({}, extension.defaultConfig);
newExtensionConfig.enabled = utils.getInputChecked("#input-enable-extension-" + extension.extensionId);
var isChecked;
// Special case for Markdown Extra and MathJax
if(extension.extensionId == 'markdownExtra') {
isChecked = utils.getInputChecked("#input-settings-markdown-extra");
if(isChecked != extension.enabled) {
newExtensionConfig.enabled = isChecked;
}
}
else if(extension.extensionId == 'mathJax') {
isChecked = utils.getInputChecked("#input-settings-mathjax");
if(isChecked != extension.enabled) {
newExtensionConfig.enabled = isChecked;
}
}
var onSaveSettingsListener = extension.onSaveSettings;
onSaveSettingsListener && onSaveSettingsListener(newExtensionConfig, event);
newExtensionSettings[extension.extensionId] = newExtensionConfig;
});
};
addEventHook("onMessage");
addEventHook("onError");
addEventHook("onOfflineChanged");
addEventHook("onUserActive");
addEventHook("onAsyncRunning");
addEventHook("onPeriodicRun");
// To access modules that are loaded after extensions
addEventHook("onEditorCreated");
addEventHook("onFileMgrCreated");
addEventHook("onSynchronizerCreated");
addEventHook("onPublisherCreated");
addEventHook("onSharingCreated");
addEventHook("onEventMgrCreated");
// Operations on files
addEventHook("onFileCreated");
addEventHook("onFileDeleted");
addEventHook("onFileSelected");
addEventHook("onFileOpen");
addEventHook("onFileClosed");
addEventHook("onContentChanged");
addEventHook("onTitleChanged");
// Operations on folders
addEventHook("onFoldersChanged");
// Sync events
addEventHook("onSyncRunning");
addEventHook("onSyncSuccess");
addEventHook("onSyncImportSuccess");
addEventHook("onSyncExportSuccess");
addEventHook("onSyncRemoved");
// Publish events
addEventHook("onPublishRunning");
addEventHook("onPublishSuccess");
addEventHook("onNewPublishSuccess");
addEventHook("onPublishRemoved");
// Operations on Layout
addEventHook("onLayoutCreated");
addEventHook("onLayoutResize");
addEventHook("onExtensionButtonResize");
// Operations on editor
addEventHook("onPagedownConfigure");
addEventHook("onSectionsCreated");
addEventHook("onCursorCoordinates");
addEventHook("onEditorPopover");
// Operations on comments
addEventHook("onDiscussionCreated");
addEventHook("onDiscussionRemoved");
addEventHook("onCommentsChanged");
// Refresh twitter buttons
addEventHook("onTweet");
var onPreviewFinished = createEventHook("onPreviewFinished");
var onAsyncPreviewListenerList = getExtensionListenerList("onAsyncPreview");
var previewContentsElt;
var $previewContentsElt;
eventMgr.onAsyncPreview = function() {
logger.log("onAsyncPreview");
function recursiveCall(callbackList) {
var callback = callbackList.length ? callbackList.shift() : function() {
setTimeout(function() {
var html = "";
_.each(previewContentsElt.children, function(elt) {
if(!elt.exportableHtml) {
var clonedElt = elt.cloneNode(true);
_.each(clonedElt.querySelectorAll('.MathJax_SVG, .MathJax_SVG_Display, .MathJax_Preview'), function(elt) {
elt.parentNode.removeChild(elt);
});
elt.exportableHtml = clonedElt.innerHTML;
}
html += elt.exportableHtml;
});
var htmlWithComments = utils.trim(html);
var htmlWithoutComments = htmlWithComments.replace(/ <span class="comment label label-danger">.*?<\/span> /g, '');
onPreviewFinished(htmlWithComments, htmlWithoutComments);
}, 10);
};
callback(function() {
recursiveCall(callbackList);
});
}
recursiveCall(onAsyncPreviewListenerList.concat([
function(callback) {
// We assume some images are loading asynchronously after the preview
$previewContentsElt.waitForImages(callback);
}
]));
};
var onReady = createEventHook("onReady");
eventMgr.onReady = function() {
previewContentsElt = document.getElementById('preview-contents');
$previewContentsElt = $(previewContentsElt);
// Create a button from an extension listener
var createBtn = function(listener) {
var buttonGrpElt = crel('div', {
class: 'btn-group'
});
var btnElt = listener();
if(_.isString(btnElt)) {
buttonGrpElt.innerHTML = btnElt;
}
else if(_.isElement(btnElt)) {
buttonGrpElt.appendChild(btnElt);
}
return buttonGrpElt;
};
if(window.viewerMode === false) {
// Create accordion in settings dialog
var accordionHtml = _.chain(extensionList).sortBy(function(extension) {
return extension.extensionName.toLowerCase();
}).reduce(function(html, extension) {
return html + (extension.settingsBlock ? _.template(settingsExtensionsAccordionHTML, {
extensionId: extension.extensionId,
extensionName: extension.extensionName,
isOptional: extension.isOptional,
settingsBlock: extension.settingsBlock
}) : "");
}, "").value();
document.querySelector('.accordion-extensions').innerHTML = accordionHtml;
// Create extension buttons
logger.log("onCreateButton");
var onCreateButtonListenerList = getExtensionListenerList("onCreateButton");
var extensionButtonsFragment = document.createDocumentFragment();
_.each(onCreateButtonListenerList, function(listener) {
extensionButtonsFragment.appendChild(createBtn(listener));
});
document.querySelector('.extension-buttons').appendChild(extensionButtonsFragment);
}
// Create extension preview buttons
logger.log("onCreatePreviewButton");
var onCreatePreviewButtonListenerList = getExtensionListenerList("onCreatePreviewButton");
var extensionPreviewButtonsFragment = document.createDocumentFragment();
_.each(onCreatePreviewButtonListenerList, function(listener) {
extensionPreviewButtonsFragment.appendChild(createBtn(listener));
});
var previewButtonsElt = document.querySelector('.extension-preview-buttons');
previewButtonsElt.appendChild(extensionPreviewButtonsFragment);
// Shall close every popover
mousetrap.bind('escape', function() {
eventMgr.onEditorPopover();
});
// Call onReady listeners
onReady();
};
// For extensions that need to call other extensions
eventMgr.onEventMgrCreated(eventMgr);
return eventMgr;
});