Stackedit/js/extensionMgr.js

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define([
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"jquery",
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"underscore",
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"utils",
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"classes/Extension",
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"settings",
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"text!html/settingsExtensionsAccordion.html",
"extensions/googleAnalytics",
"extensions/dialogAbout",
"extensions/dialogManagePublication",
"extensions/dialogManageSynchronization",
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"extensions/dialogOpenHarddrive",
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"extensions/documentSelector",
"extensions/documentTitle",
"extensions/workingIndicator",
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"extensions/notifications",
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"extensions/markdownExtra",
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"extensions/toc",
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"extensions/mathJax",
"extensions/emailConverter",
"extensions/scrollLink",
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"extensions/buttonSync",
"extensions/buttonPublish",
"extensions/buttonShare",
"extensions/buttonStat",
"extensions/buttonHtmlCode",
"extensions/buttonMarkdownSyntax",
"extensions/buttonViewer",
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"libs/bootstrap",
"libs/jquery.waitforimages"
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], function($, _, utils, Extension, settings, settingsExtensionsAccordionHTML) {
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var extensionMgr = {};
// Create a list of extensions
var extensionList = _.chain(arguments).map(function(argument) {
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return argument instanceof Extension && argument;
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}).compact().value();
// Return every named callbacks implemented in extensions
function getExtensionCallbackList(hookName) {
return _.chain(extensionList).map(function(extension) {
return extension.config.enabled && extension[hookName];
}).compact().value();
}
// Return a function that calls every callbacks from extensions
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function createHook(hookName, noLog) {
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var callbackList = getExtensionCallbackList(hookName);
return function() {
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if(!noLog) {
logger.log(hookName, arguments);
}
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var callbackArguments = arguments;
_.each(callbackList, function(callback) {
callback.apply(null, callbackArguments);
});
};
}
// Add a Hook to the extensionMgr
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function addHook(hookName, noLog) {
extensionMgr[hookName] = createHook(hookName, noLog);
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}
// Set extension config
extensionSettings = settings.extensionSettings || {};
_.each(extensionList, function(extension) {
extension.config = _.extend({}, extension.defaultConfig, extensionSettings[extension.extensionId]);
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extension.config.enabled = !extension.isOptional || extension.config.enabled === undefined || extension.config.enabled === true;
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});
// Load/Save extension config from/to settings
extensionMgr["onLoadSettings"] = function() {
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logger.log("onLoadSettings");
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_.each(extensionList, function(extension) {
utils.setInputChecked("#input-enable-extension-" + extension.extensionId, extension.config.enabled);
var onLoadSettingsCallback = extension.onLoadSettings;
onLoadSettingsCallback && onLoadSettingsCallback();
});
};
extensionMgr["onSaveSettings"] = function(newExtensionSettings, event) {
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logger.log("onSaveSettings");
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_.each(extensionList, function(extension) {
var newExtensionConfig = _.extend({}, extension.defaultConfig);
newExtensionConfig.enabled = utils.getInputChecked("#input-enable-extension-" + extension.extensionId);
var onSaveSettingsCallback = extension.onSaveSettings;
onSaveSettingsCallback && onSaveSettingsCallback(newExtensionConfig, event);
newExtensionSettings[extension.extensionId] = newExtensionConfig;
});
};
addHook("onMessage");
addHook("onError");
addHook("onOfflineChanged");
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addHook("onAsyncRunning", true);
addHook("onPeriodicRun", true);
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// To access modules that are loaded after extensions
addHook("onFileMgrCreated");
addHook("onSynchronizerCreated");
addHook("onPublisherCreated");
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addHook("onExtensionMgrCreated");
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// Operations on files
addHook("onFileCreated");
addHook("onFileDeleted");
addHook("onFileSelected");
addHook("onContentChanged");
addHook("onTitleChanged");
// Sync events
addHook("onSyncRunning");
addHook("onSyncSuccess");
addHook("onSyncImportSuccess");
addHook("onSyncExportSuccess");
addHook("onSyncRemoved");
// Publish events
addHook("onPublishRunning");
addHook("onPublishSuccess");
addHook("onNewPublishSuccess");
addHook("onPublishRemoved");
// Operations on Layout
addHook("onLayoutConfigure");
addHook("onLayoutCreated");
// Operations on PageDown
addHook("onEditorConfigure");
var onPreviewFinished = createHook("onPreviewFinished");
var onAsyncPreviewCallbackList = getExtensionCallbackList("onAsyncPreview");
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// The number of times we expect tryFinished to be called
var nbAsyncPreviewCallback = onAsyncPreviewCallbackList.length + 1;
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extensionMgr["onAsyncPreview"] = function() {
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logger.log("onAsyncPreview");
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// Call onPreviewFinished callbacks when all async preview are finished
var counter = 0;
function tryFinished() {
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if(++counter === nbAsyncPreviewCallback) {
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onPreviewFinished();
}
}
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// We assume images are loading in the preview
$("#wmd-preview").waitForImages(tryFinished);
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_.each(onAsyncPreviewCallbackList, function(asyncPreviewCallback) {
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asyncPreviewCallback(tryFinished);
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});
};
function createSettings(extension) {
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$("#accordion-extensions").append($(_.template(settingsExtensionsAccordionHTML, {
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extensionId: extension.extensionId,
extensionName: extension.extensionName,
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isOptional: extension.isOptional,
settingsBlock: extension.settingsBlock
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})));
}
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extensionMgr["onReady"] = function() {
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// Create accordion in settings dialog
_.chain(extensionList).sortBy(function(extension) {
return extension.extensionName.toLowerCase();
}).each(createSettings);
// Create extension buttons
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logger.log("onCreateButton");
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var onCreateButtonCallbackList = getExtensionCallbackList("onCreateButton");
_.each(onCreateButtonCallbackList, function(callback) {
$("#extension-buttons").append($('<div class="btn-group">').append(callback()));
});
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// Create extension preview buttons
logger.log("onCreatePreviewButton");
var onCreatePreviewButtonCallbackList = getExtensionCallbackList("onCreatePreviewButton");
_.each(onCreatePreviewButtonCallbackList, function(callback) {
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$("#extension-preview-buttons").append($('<div class="btn-group">').append(callback()));
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});
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// Call extensions onReady callbacks
var onReady = createHook("onReady");
onReady();
};
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// For extensions that need to call other extensions
extensionMgr.onExtensionMgrCreated(extensionMgr);
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return extensionMgr;
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});