mirror of https://github.com/zulip/zulip.git
537 lines
16 KiB
JavaScript
537 lines
16 KiB
JavaScript
const noop = function () {};
|
|
|
|
exports.make_event_store = (selector) => {
|
|
/*
|
|
|
|
This function returns an event_store object that
|
|
simulates the behavior of .on and .off from jQuery.
|
|
|
|
It also has methods to retrieve handlers that have
|
|
been set via .on (or similar methods), which can
|
|
be useful for tests that want to test the actual
|
|
handlers.
|
|
|
|
*/
|
|
const on_functions = new Map();
|
|
const child_on_functions = new Map();
|
|
|
|
function generic_event(event_name, arg) {
|
|
if (typeof arg === 'function') {
|
|
on_functions.set(event_name, arg);
|
|
} else {
|
|
const handler = on_functions.get(event_name);
|
|
if (!handler) {
|
|
const error = 'Cannot find ' + event_name + ' handler for ' + selector;
|
|
throw Error(error);
|
|
}
|
|
handler(arg);
|
|
}
|
|
}
|
|
|
|
const self = {
|
|
generic_event: generic_event,
|
|
|
|
get_on_handler: function (name, child_selector) {
|
|
let handler;
|
|
|
|
if (child_selector === undefined) {
|
|
handler = on_functions.get(name);
|
|
if (!handler) {
|
|
throw Error('no ' + name + ' handler for ' + selector);
|
|
}
|
|
return handler;
|
|
}
|
|
|
|
const child_on = child_on_functions.get(child_selector);
|
|
if (child_on) {
|
|
handler = child_on.get(name);
|
|
}
|
|
|
|
if (!handler) {
|
|
throw Error('no ' + name + ' handler for ' + selector + ' ' + child_selector);
|
|
}
|
|
|
|
return handler;
|
|
},
|
|
|
|
off: function (event_name, ...args) {
|
|
if (args.length === 0) {
|
|
on_functions.delete(event_name);
|
|
return;
|
|
}
|
|
|
|
// In the Zulip codebase we never use this form of
|
|
// .off in code that we test: $(...).off('click', child_sel);
|
|
//
|
|
// So we don't support this for now.
|
|
throw Error('zjquery does not support this call sequence');
|
|
},
|
|
|
|
on: function (event_name, ...args) {
|
|
// parameters will either be
|
|
// (event_name, handler) or
|
|
// (event_name, sel, handler)
|
|
if (args.length === 1) {
|
|
const [handler] = args;
|
|
if (on_functions.has(event_name)) {
|
|
console.info('\nEither the app or the test can be at fault here..');
|
|
console.info('(sometimes you just want to call $.clear_all_elements();)\n');
|
|
throw Error('dup ' + event_name + ' handler for ' + selector);
|
|
}
|
|
|
|
on_functions.set(event_name, handler);
|
|
return;
|
|
}
|
|
|
|
if (args.length !== 2) {
|
|
throw Error('wrong number of arguments passed in');
|
|
}
|
|
|
|
const [sel, handler] = args;
|
|
assert.equal(typeof sel, 'string', 'String selectors expected here.');
|
|
assert.equal(typeof handler, 'function', 'An handler function expected here.');
|
|
|
|
if (!child_on_functions.has(sel)) {
|
|
child_on_functions.set(sel, new Map());
|
|
}
|
|
|
|
const child_on = child_on_functions.get(sel);
|
|
|
|
if (child_on.has(event_name)) {
|
|
throw Error('dup ' + event_name + ' handler for ' + selector + ' ' + sel);
|
|
}
|
|
|
|
child_on.set(event_name, handler);
|
|
},
|
|
|
|
trigger: function (ev) {
|
|
const ev_name = typeof ev === 'string' ? ev : ev.name;
|
|
const func = on_functions.get(ev_name);
|
|
|
|
if (!func) {
|
|
// It's possible that test code will trigger events
|
|
// that haven't been set up yet, but we are trying to
|
|
// eventually deprecate trigger in our codebase, so for
|
|
// now we just let calls to trigger silently do nothing.
|
|
// (And I think actual jQuery would do the same thing.)
|
|
return;
|
|
}
|
|
|
|
func(ev.data);
|
|
},
|
|
};
|
|
|
|
return self;
|
|
};
|
|
|
|
exports.make_new_elem = function (selector, opts) {
|
|
let html = 'never-been-set';
|
|
let text = 'never-been-set';
|
|
let value;
|
|
let css;
|
|
let shown = false;
|
|
let focused = false;
|
|
const find_results = new Map();
|
|
let my_parent;
|
|
const parents_result = new Map();
|
|
const properties = new Map();
|
|
const attrs = new Map();
|
|
const classes = new Map();
|
|
const event_store = exports.make_event_store(selector);
|
|
|
|
const self = {
|
|
addClass: function (class_name) {
|
|
classes.set(class_name, true);
|
|
return self;
|
|
},
|
|
attr: function (name, val) {
|
|
if (val === undefined) {
|
|
return attrs.get(name);
|
|
}
|
|
attrs.set(name, val);
|
|
return self;
|
|
},
|
|
blur: function () {
|
|
focused = false;
|
|
return self;
|
|
},
|
|
click: function (arg) {
|
|
event_store.generic_event('click', arg);
|
|
return self;
|
|
},
|
|
data: function (name, val) {
|
|
if (val === undefined) {
|
|
const data_val = attrs.get('data-' + name);
|
|
if (data_val === undefined) {
|
|
return;
|
|
}
|
|
return JSON.parse(data_val);
|
|
}
|
|
attrs.set('data-' + name, val);
|
|
return self;
|
|
},
|
|
delay: function () {
|
|
return self;
|
|
},
|
|
debug: function () {
|
|
return {
|
|
value: value,
|
|
shown: shown,
|
|
selector: selector,
|
|
};
|
|
},
|
|
empty: function (arg) {
|
|
if (arg === undefined) {
|
|
find_results.clear();
|
|
}
|
|
return self;
|
|
},
|
|
eq: function () {
|
|
return self;
|
|
},
|
|
expectOne: function () {
|
|
// silently do nothing
|
|
return self;
|
|
},
|
|
fadeTo: noop,
|
|
find: function (child_selector) {
|
|
const child = find_results.get(child_selector);
|
|
if (child) {
|
|
return child;
|
|
}
|
|
if (opts.silent) {
|
|
return self;
|
|
}
|
|
throw Error("Cannot find " + child_selector + " in " + selector);
|
|
},
|
|
focus: function () {
|
|
focused = true;
|
|
return self;
|
|
},
|
|
focusin: function () {
|
|
focused = true;
|
|
return self;
|
|
},
|
|
focusout: function () {
|
|
focused = false;
|
|
return self;
|
|
},
|
|
get: function (idx) {
|
|
// We have some legacy code that does $('foo').get(0).
|
|
assert.equal(idx, 0);
|
|
return selector;
|
|
},
|
|
get_on_handler: function (name, child_selector) {
|
|
return event_store.get_on_handler(name, child_selector);
|
|
},
|
|
hasClass: function (class_name) {
|
|
return classes.has(class_name);
|
|
},
|
|
height: noop,
|
|
hide: function () {
|
|
shown = false;
|
|
return self;
|
|
},
|
|
html: function (arg) {
|
|
if (arg !== undefined) {
|
|
html = arg;
|
|
return self;
|
|
}
|
|
return html;
|
|
},
|
|
is: function (arg) {
|
|
if (arg === ':visible') {
|
|
return shown;
|
|
}
|
|
if (arg === ':focus') {
|
|
return focused;
|
|
}
|
|
return self;
|
|
},
|
|
is_focused: function () {
|
|
// is_focused is not a jQuery thing; this is
|
|
// for our testing
|
|
return focused;
|
|
},
|
|
keydown: function (arg) {
|
|
event_store.generic_event('keydown', arg);
|
|
return self;
|
|
},
|
|
keyup: function (arg) {
|
|
event_store.generic_event('keyup', arg);
|
|
return self;
|
|
},
|
|
off: function (...args) {
|
|
event_store.off(...args);
|
|
return self;
|
|
},
|
|
on: function (...args) {
|
|
event_store.on(...args);
|
|
return self;
|
|
},
|
|
parent: function () {
|
|
return my_parent;
|
|
},
|
|
parents: function (parents_selector) {
|
|
const result = parents_result.get(parents_selector);
|
|
assert(result, 'You need to call set_parents_result for ' +
|
|
parents_selector + ' in ' + selector);
|
|
return result;
|
|
},
|
|
prop: function (name, val) {
|
|
if (val === undefined) {
|
|
return properties.get(name);
|
|
}
|
|
properties.set(name, val);
|
|
return self;
|
|
},
|
|
removeAttr: function (name) {
|
|
attrs.delete(name);
|
|
return self;
|
|
},
|
|
removeClass: function (class_names) {
|
|
class_names = class_names.split(' ');
|
|
class_names.forEach(function (class_name) {
|
|
classes.delete(class_name);
|
|
});
|
|
return self;
|
|
},
|
|
remove: function () {
|
|
return self;
|
|
},
|
|
removeData: noop,
|
|
replaceWith: function () {
|
|
return self;
|
|
},
|
|
scrollTop: function () {
|
|
return self;
|
|
},
|
|
select: function (arg) {
|
|
event_store.generic_event('select', arg);
|
|
return self;
|
|
},
|
|
set_find_results: function (find_selector, jquery_object) {
|
|
find_results.set(find_selector, jquery_object);
|
|
},
|
|
show: function () {
|
|
shown = true;
|
|
return self;
|
|
},
|
|
serializeArray: function () {
|
|
return self;
|
|
},
|
|
set_parent: function (parent_elem) {
|
|
my_parent = parent_elem;
|
|
},
|
|
set_parents_result: function (selector, result) {
|
|
parents_result.set(selector, result);
|
|
},
|
|
stop: function () {
|
|
return self;
|
|
},
|
|
text: function (...args) {
|
|
if (args.length !== 0) {
|
|
if (args[0] !== undefined) {
|
|
text = args[0].toString();
|
|
}
|
|
return self;
|
|
}
|
|
return text;
|
|
},
|
|
trigger: function (ev) {
|
|
event_store.trigger(ev);
|
|
return self;
|
|
},
|
|
val: function (...args) {
|
|
if (args.length === 0) {
|
|
return value || '';
|
|
}
|
|
[value] = args;
|
|
return self;
|
|
},
|
|
css: function (...args) {
|
|
if (args.length === 0) {
|
|
return css || {};
|
|
}
|
|
[css] = args;
|
|
return self;
|
|
},
|
|
visible: function () {
|
|
return shown;
|
|
},
|
|
};
|
|
|
|
if (selector[0] === '<') {
|
|
self.html(selector);
|
|
}
|
|
|
|
self[0] = 'you-must-set-the-child-yourself';
|
|
|
|
self.selector = selector;
|
|
|
|
self.length = 1;
|
|
|
|
return self;
|
|
};
|
|
|
|
exports.make_zjquery = function (opts) {
|
|
opts = opts || {};
|
|
|
|
const elems = new Map();
|
|
|
|
// Our fn structure helps us simulate extending jQuery.
|
|
const fn = {};
|
|
|
|
function new_elem(selector) {
|
|
const elem = exports.make_new_elem(selector, {
|
|
silent: opts.silent,
|
|
});
|
|
Object.assign(elem, fn);
|
|
|
|
// Create a proxy handler to detect missing stubs.
|
|
//
|
|
// For context, zjquery doesn't implement every method/attribute
|
|
// that you'd find on a "real" jQuery object. Sometimes we
|
|
// expects devs to create their own stubs.
|
|
const handler = {
|
|
get: (target, key) => {
|
|
// Handle the special case of equality checks, which
|
|
// we can infer by assert.equal trying to access the
|
|
// "stack" key.
|
|
if (key === 'stack') {
|
|
const error = '\nInstead of doing equality checks on a full object, ' +
|
|
'do `assert_equal(foo.selector, ".some_class")\n';
|
|
throw Error(error);
|
|
}
|
|
|
|
const val = target[key];
|
|
|
|
if (val === undefined) {
|
|
// For undefined values, we'll throw errors to devs saying
|
|
// they need to create stubs. We ignore certain keys that
|
|
// are used for simply printing out the object.
|
|
if (typeof key === 'symbol') {
|
|
return;
|
|
}
|
|
if (key === 'inspect') {
|
|
return;
|
|
}
|
|
|
|
throw Error('You must create a stub for $("' + selector + '").' + key);
|
|
}
|
|
|
|
return val;
|
|
},
|
|
};
|
|
|
|
const proxy = new Proxy(elem, handler);
|
|
|
|
return proxy;
|
|
}
|
|
|
|
const zjquery = function (arg, arg2) {
|
|
if (typeof arg === "function") {
|
|
// If somebody is passing us a function, we emulate
|
|
// jQuery's behavior of running this function after
|
|
// page load time. But there are no pages to load,
|
|
// so we just call it right away.
|
|
arg();
|
|
return;
|
|
}
|
|
|
|
// If somebody is passing us an element, we return
|
|
// the element itself if it's been created with
|
|
// zjquery.
|
|
// This may happen in cases like $(this).
|
|
if (arg.selector && elems.has(arg.selector)) {
|
|
return arg;
|
|
}
|
|
|
|
// We occasionally create stub objects that know
|
|
// they want to be wrapped by jQuery (so they can
|
|
// in turn return stubs). The convention is that
|
|
// they provide a to_$ attribute.
|
|
if (arg.to_$) {
|
|
assert(typeof arg.to_$ === "function");
|
|
return arg.to_$();
|
|
}
|
|
|
|
if (arg2 !== undefined) {
|
|
throw Error("We only use one-argument variations of $(...) in Zulip code.");
|
|
}
|
|
|
|
const selector = arg;
|
|
|
|
if (typeof selector !== "string") {
|
|
console.info(arg);
|
|
throw Error("zjquery does not know how to wrap this object yet");
|
|
}
|
|
|
|
const valid_selector =
|
|
'<#.'.includes(selector[0]) ||
|
|
selector === 'window-stub' ||
|
|
selector === 'document-stub' ||
|
|
selector === 'body' ||
|
|
selector === 'html' ||
|
|
selector.location ||
|
|
selector.includes('#') ||
|
|
selector.includes('.') ||
|
|
selector.includes('[') && selector.indexOf(']') >= selector.indexOf('[');
|
|
|
|
assert(valid_selector,
|
|
'Invalid selector: ' + selector +
|
|
' Use $.create() maybe?');
|
|
|
|
|
|
if (!elems.has(selector)) {
|
|
const elem = new_elem(selector);
|
|
elems.set(selector, elem);
|
|
}
|
|
return elems.get(selector);
|
|
};
|
|
|
|
zjquery.create = function (name) {
|
|
assert(!elems.has(name),
|
|
'You already created an object with this name!!');
|
|
const elem = new_elem(name);
|
|
elems.set(name, elem);
|
|
return elem;
|
|
};
|
|
|
|
zjquery.stub_selector = function (selector, stub) {
|
|
elems.set(selector, stub);
|
|
};
|
|
|
|
zjquery.trim = function (s) { return s; };
|
|
|
|
zjquery.state = function () {
|
|
// useful for debugging
|
|
let res = Array.from(elems.values(), v => v.debug());
|
|
|
|
res = res.map(v => [v.selector, v.value, v.shown]);
|
|
|
|
res.sort();
|
|
|
|
return res;
|
|
};
|
|
|
|
zjquery.Event = function (name, data) {
|
|
return {
|
|
name: name,
|
|
data: data,
|
|
};
|
|
};
|
|
|
|
zjquery.extend = function (content, container) {
|
|
return _.extend(content, container);
|
|
};
|
|
|
|
zjquery.fn = fn;
|
|
|
|
zjquery.clear_all_elements = function () {
|
|
elems.clear();
|
|
};
|
|
|
|
return zjquery;
|
|
};
|