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Remove check for on() and addEventListener(). #1

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Remove check for on() and addEventListener(). #1

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276 changes: 134 additions & 142 deletions src/globalevents.js
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Original file line number Diff line number Diff line change
Expand Up @@ -23,150 +23,146 @@ if (global.NSObject && global.NSString && typeof global.ios === "undefined") {
}


// If NS has added this ability to core; we want our plugin to gracefully stop working without doing anything...
if (page.Page.on || page.Page.addEventListener) {
console.log("NativeScript-globalevents auto disabled; functionality appears to be already present!");
} else {
var createdPageEvent = "pageCreated";
var loadedFirst = View.loadedEvent + "First";
var unloadedFirst = View.unloadedEvent + "First";
var navigatingToFirst = page.Page.navigatingToEvent + "First";
var navigatingFromFirst = page.Page.navigatingFromEvent + "First";
var navigatedToFirst = page.Page.navigatedToEvent + "First";
var navigatedFromFirst = page.Page.navigatedFromEvent + "First";
var shownModallyFirst = page.Page.shownModallyEvent + "First";
var showingModallyFirst = page.Page.showingModallyEvent + "First";

// Setup the original events tracking
var events = {};

// Setup our event trackers
var eventHandlers = {};
eventHandlers[page.Page.navigatingToEvent] = [];
eventHandlers[page.Page.navigatedToEvent] = [];
eventHandlers[page.Page.navigatingFromEvent] = [];
eventHandlers[page.Page.navigatedFromEvent] = [];
eventHandlers[page.Page.shownModallyEvent] = [];
eventHandlers[page.Page.showingModallyEvent] = [];
eventHandlers[View.loadedEvent] = [];
eventHandlers[View.unloadedEvent] = [];
eventHandlers[createdPageEvent] = [];
eventHandlers[loadedFirst] = [];
eventHandlers[unloadedFirst] = [];
eventHandlers[navigatingToFirst] = [];
eventHandlers[navigatingFromFirst] = [];
eventHandlers[navigatedToFirst] = [];
eventHandlers[navigatedFromFirst] = [];
eventHandlers[showingModallyFirst] = [];
eventHandlers[shownModallyFirst] = [];


// The event handler names
var eventNames = {};
eventNames[page.Page.navigatedToEvent] = 'onNavigatedTo';
eventNames[page.Page.navigatingToEvent] = 'onNavigatingTo';
eventNames[page.Page.navigatedFromEvent] = 'onNavigatedFrom';
eventNames[page.Page.navigatingFromEvent] = 'onNavigatingFrom';
eventNames[page.Page.shownModallyEvent] = '_raiseShownModallyEvent';
eventNames[page.Page.showingModallyEvent] = '_raiseShowingModallyEvent';
eventNames[View.loadedEvent] = 'onLoaded';
eventNames[View.unloadedEvent] = 'onUnloaded';
eventNames[createdPageEvent] = createdPageEvent;
eventNames[loadedFirst] = 'onLoaded';
eventNames[unloadedFirst] = 'onUnloaded';
eventNames[navigatingToFirst] = 'onNavigatingTo';
eventNames[navigatingFromFirst] = 'onNavigatingFrom';
eventNames[navigatedToFirst] = 'onNavigatedTo';
eventNames[navigatedFromFirst] = 'onNavigatedFrom';
eventNames[shownModallyFirst] = '_raiseShownModallyEvent';
eventNames[showingModallyFirst] = '_raiseShowingModallyEvent';

/** Add our newly Created Page Event **/
page.Page.createdPageEvent = createdPageEvent;
page.Page.loadedFirst = loadedFirst;
page.Page.unloadedFirst = unloadedFirst;
page.Page.navigatedFromFirst = navigatedFromFirst;
page.Page.navigatingFromFirst = navigatingFromFirst;
page.Page.navigatedToFirst = navigatedToFirst;
page.Page.navigatingToFirst = navigatingToFirst;
page.Page.showingModallyFirst = showingModallyFirst;
page.Page.shownModallyFirst = shownModallyFirst;

// Overwrite the Page class with our Page class.
var Page = (function (_super) {
__extends(Page, _super);
function Page() {
var _this = _super !== null && _super.apply(this, arguments) || this;
runEvent(Page.createdPageEvent, {object: this});
return _this;
var createdPageEvent = "pageCreated";
var loadedFirst = View.loadedEvent + "First";
var unloadedFirst = View.unloadedEvent + "First";
var navigatingToFirst = page.Page.navigatingToEvent + "First";
var navigatingFromFirst = page.Page.navigatingFromEvent + "First";
var navigatedToFirst = page.Page.navigatedToEvent + "First";
var navigatedFromFirst = page.Page.navigatedFromEvent + "First";
var shownModallyFirst = page.Page.shownModallyEvent + "First";
var showingModallyFirst = page.Page.showingModallyEvent + "First";

// Setup the original events tracking
var events = {};

// Setup our event trackers
var eventHandlers = {};
eventHandlers[page.Page.navigatingToEvent] = [];
eventHandlers[page.Page.navigatedToEvent] = [];
eventHandlers[page.Page.navigatingFromEvent] = [];
eventHandlers[page.Page.navigatedFromEvent] = [];
eventHandlers[page.Page.shownModallyEvent] = [];
eventHandlers[page.Page.showingModallyEvent] = [];
eventHandlers[View.loadedEvent] = [];
eventHandlers[View.unloadedEvent] = [];
eventHandlers[createdPageEvent] = [];
eventHandlers[loadedFirst] = [];
eventHandlers[unloadedFirst] = [];
eventHandlers[navigatingToFirst] = [];
eventHandlers[navigatingFromFirst] = [];
eventHandlers[navigatedToFirst] = [];
eventHandlers[navigatedFromFirst] = [];
eventHandlers[showingModallyFirst] = [];
eventHandlers[shownModallyFirst] = [];


// The event handler names
var eventNames = {};
eventNames[page.Page.navigatedToEvent] = 'onNavigatedTo';
eventNames[page.Page.navigatingToEvent] = 'onNavigatingTo';
eventNames[page.Page.navigatedFromEvent] = 'onNavigatedFrom';
eventNames[page.Page.navigatingFromEvent] = 'onNavigatingFrom';
eventNames[page.Page.shownModallyEvent] = '_raiseShownModallyEvent';
eventNames[page.Page.showingModallyEvent] = '_raiseShowingModallyEvent';
eventNames[View.loadedEvent] = 'onLoaded';
eventNames[View.unloadedEvent] = 'onUnloaded';
eventNames[createdPageEvent] = createdPageEvent;
eventNames[loadedFirst] = 'onLoaded';
eventNames[unloadedFirst] = 'onUnloaded';
eventNames[navigatingToFirst] = 'onNavigatingTo';
eventNames[navigatingFromFirst] = 'onNavigatingFrom';
eventNames[navigatedToFirst] = 'onNavigatedTo';
eventNames[navigatedFromFirst] = 'onNavigatedFrom';
eventNames[shownModallyFirst] = '_raiseShownModallyEvent';
eventNames[showingModallyFirst] = '_raiseShowingModallyEvent';

/** Add our newly Created Page Event **/
page.Page.createdPageEvent = createdPageEvent;
page.Page.loadedFirst = loadedFirst;
page.Page.unloadedFirst = unloadedFirst;
page.Page.navigatedFromFirst = navigatedFromFirst;
page.Page.navigatingFromFirst = navigatingFromFirst;
page.Page.navigatedToFirst = navigatedToFirst;
page.Page.navigatingToFirst = navigatingToFirst;
page.Page.showingModallyFirst = showingModallyFirst;
page.Page.shownModallyFirst = shownModallyFirst;

// Overwrite the Page class with our Page class.
var Page = (function (_super) {
__extends(Page, _super);
function Page() {
var _this = _super !== null && _super.apply(this, arguments) || this;
runEvent(Page.createdPageEvent, {object: this});
return _this;
}

/**
* Setup a static on/addEventLister on the Page object
* @type {Page.addEventListener}
*/
Page.on = Page.addEventListener = function (event, callback, thisArg) {
if (typeof eventHandlers[event] === 'undefined') {
throw new Error("This global page event " + event + " does not exist, or is currently unsupported");
}
if (typeof callback !== 'function') {
throw new Error("Callback should be a function!");
}

/**
* Setup a static on/addEventLister on the Page object
* @type {Page.addEventListener}
*/
Page.on = Page.addEventListener = function (event, callback, thisArg) {
if (typeof eventHandlers[event] === 'undefined') {
throw new Error("This global page event " + event + " does not exist, or is currently unsupported");
}
if (typeof callback !== 'function') {
throw new Error("Callback should be a function!");
}
var lookupEvent;
if (event.indexOf("First") !== -1) {
lookupEvent = event.substring(0, event.length-5);
} else {
lookupEvent = event;
}
// Dynamically hijack the event; so that we don't bother hijacking any events that aren't used
if (eventHandlers[event].length === 0) {
hijackEvent(lookupEvent);
}
eventHandlers[event].push({callback: callback, thisArg: thisArg});
};

var lookupEvent;
if (event.indexOf("First") !== -1) {
lookupEvent = event.substring(0, event.length-5);
} else {
lookupEvent = event;
}
// Dynamically hijack the event; so that we don't bother hijacking any events that aren't used
if (eventHandlers[event].length === 0) {
hijackEvent(lookupEvent);
}
eventHandlers[event].push({callback: callback, thisArg: thisArg});
};

/**
* Setup a static off/removeEventLister
* @type {Page.removeEventListener}
*/
Page.off = Page.removeEventListener = function (event, callback, thisArg) {
if (typeof eventHandlers[event] === "undefined") {
throw new Error("This global page event " + event + " does not exist.");
}
var orgLength = eventHandlers[event].length;
if (callback) {
var index = indexOfListener(eventHandlers[event], callback, thisArg);
if (index >= 0) {
eventHandlers[event].splice(index, 1);
}
} else {
eventHandlers[event] = [];
}
if (eventHandlers[event].length === 0 && orgLength !== 0) {
restoreEvent(event);
/**
* Setup a static off/removeEventLister
* @type {Page.removeEventListener}
*/
Page.off = Page.removeEventListener = function (event, callback, thisArg) {
if (typeof eventHandlers[event] === "undefined") {
throw new Error("This global page event " + event + " does not exist.");
}
var orgLength = eventHandlers[event].length;
if (callback) {
var index = indexOfListener(eventHandlers[event], callback, thisArg);
if (index >= 0) {
eventHandlers[event].splice(index, 1);
}
};
return Page;
}(page.Page));

// In case they include globalevents AFTER they have the Page variable; we need to
// Make sure the original Page variable also has these events.
page.Page.on = page.Page.addEventListener = Page.on;
page.Page.off = page.Page.removeEventListener = Page.off;

// If NativeScript-Angular has been loaded; this will be defined
if (typeof global.Zone === "undefined") {
// Overwrite the Page variable with our class only in a PAN or VUE app
page.Page = Page;
} else {
// Because we are in Angular; we will grab the "Default" page class and
// use it, instead of our new Page class. Basically we "forget" about our
// new page class in Angular mode.
Page = page.Page;
}
} else {
eventHandlers[event] = [];
}
if (eventHandlers[event].length === 0 && orgLength !== 0) {
restoreEvent(event);
}
};
return Page;
}(page.Page));

// In case they include globalevents AFTER they have the Page variable; we need to
// Make sure the original Page variable also has these events.
page.Page.on = page.Page.addEventListener = Page.on;
page.Page.off = page.Page.removeEventListener = Page.off;

// If NativeScript-Angular has been loaded; this will be defined
if (typeof global.Zone === "undefined") {
// Overwrite the Page variable with our class only in a PAN or VUE app
page.Page = Page;
} else {
// Because we are in Angular; we will grab the "Default" page class and
// use it, instead of our new Page class. Basically we "forget" about our
// new page class in Angular mode.
Page = page.Page;
}


/**
* Used to dynamically hijack the event
* @param event
Expand Down Expand Up @@ -298,7 +294,3 @@ function getEventHandler(eventType) {
runEvent(eventType, eventArgs);
};
}