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|
fs = require "fs"
mkdirp = require "mkdirp"
getTemplate = (angularVersion, container, attrs, throttle) ->
"""
<!doctype html>
<head>
<style>
html, body {
height: 100%;
}
</style>
<script src='http://ajax.googleapis.com/ajax/libs/angularjs/#{angularVersion}/angular.min.js'></script>
<script src="../../build/ng-infinite-scroll.js"></script>
<script>
angular.module('app', ['infinite-scroll'])
.config(function ($provide) {
$provide.value('THROTTLE_MILLISECONDS', #{throttle});
})
.run(function ($rootScope) {
$rootScope.items = [];
$rootScope.loadMore = function () {
[].push.apply($rootScope.items, new Array(100));
};
$rootScope.busy = true;
$rootScope.enable = function () {
$rootScope.busy = false;
};
$rootScope.triggerEvent = function () {
$rootScope.$emit('anEvent');
};
});
</script>
</head>
<body ng-app="app">
<a id="action" ng-click="enable()">Enable</a>
<a id="force" ng-click="loadMore()">Force</a>
<a id="trigger" ng-click="triggerEvent()">Trigger</a>
#{containers[container].start}
<div infinite-scroll="loadMore()" #{containers[container].attr} #{attrs}>
<p ng-repeat='item in items track by $index'>
{{$index}}
</p>
</div>
#{containers[container].end}
</body>
"""
containers =
window:
start: ""
end: ""
attr: ""
parent:
start: "<div id='parent' style='height: 50%; overflow: auto;'>"
end: "</div>"
attr: "infinite-scroll-parent"
ancestor:
start: "<div id='ancestor' style='height: 50%; overflow: auto;'><div>"
end: "</div></div>"
attr: "infinite-scroll-container='\"#ancestor\"'"
getElementByIdScript = (id) ->
"document.getElementById('#{id}')"
calculateChildrenHeightScript = (id) ->
"""
[].concat.apply([], #{getElementByIdScript(id)}.childNodes)
.map(function (el) { return el.offsetHeight ? el.offsetHeight : 0; })
.reduce(function (cur, prev) { return prev + cur; }, 0)
"""
scrollToBottomScript = (container) ->
if container is "window"
"window.scrollTo(0, document.body.scrollHeight)"
else
"#{getElementByIdScript(container)}.scrollTop = #{calculateChildrenHeightScript(container)}"
scrollToLastScreenScript = (container, offset) ->
# 2 * window.innerHeight means that the bottom of the screen should be somewhere close to
# body height - window height. That means that the top of the window is body height - 2 * window height.
if container is "window"
"window.scrollTo(0, document.body.scrollHeight - 2 * window.innerHeight + #{offset})"
else
"""
#{getElementByIdScript(container)}.scrollTop =
#{calculateChildrenHeightScript(container)} - 2 * #{getElementByIdScript(container)}.offsetHeight + #{offset}
"""
collapseItemsScript = (container) ->
"""
var items = document.getElementsByTagName('p')
for (i = 0; i < items.length; ++i) {
items[i].style.display = 'none'
}
"""
getItems = ->
element.all(By.repeater "item in items")
tmpDir = ".tmp"
pathToDocument = "#{tmpDir}/index.html"
describe "ng-infinite-scroll", ->
for angularVersion in ["1.2.0", "1.3.4"]
describe "with Angular #{angularVersion}", ->
for container in ["window", "ancestor", "parent"]
describe "with #{container} as container", ->
replaceIndexFile = (attrs, throttle) ->
mkdirp tmpDir
fs.writeFileSync(pathToDocument, getTemplate(angularVersion, container, attrs, throttle))
describe "without throttling", ->
throttle = null
it "should be triggered immediately and when container is scrolled to the bottom", ->
replaceIndexFile "", throttle
browser.get pathToDocument
expect(getItems().count()).toBe 100
browser.driver.executeScript(scrollToBottomScript(container))
expect(getItems().count()).toBe 200
it "does not trigger immediately when infinite-scroll-immediate-check is false", ->
replaceIndexFile "infinite-scroll-immediate-check='false'", throttle
browser.get pathToDocument
expect(getItems().count()).toBe 0
element(By.id("force")).click()
expect(getItems().count()).toBe 100
browser.driver.executeScript(scrollToBottomScript(container))
expect(getItems().count()).toBe 200
it "respects the disabled attribute", ->
replaceIndexFile "infinite-scroll-disabled='busy'", throttle
browser.get pathToDocument
expect(getItems().count()).toBe 0
element(By.id("action")).click()
expect(getItems().count()).toBe 100
it "respects the infinite-scroll-distance attribute", ->
replaceIndexFile "infinite-scroll-distance='1'", throttle
browser.get pathToDocument
expect(getItems().count()).toBe 100
browser.driver.executeScript(scrollToLastScreenScript(container, -20))
expect(getItems().count()).toBe 100
browser.driver.executeScript(scrollToLastScreenScript(container, 20))
expect(getItems().count()).toBe 200
describe "with an event handler", ->
it "calls the event handler on an event", ->
replaceIndexFile "infinite-scroll-listen-for-event='anEvent'", throttle
browser.get pathToDocument
expect(getItems().count()).toBe 100
browser.driver.executeScript(collapseItemsScript(container))
expect(getItems().count()).toBe 100
element(By.id("trigger")).click()
expect(getItems().count()).toBe 200
describe "with throttling", ->
throttle = browser.params.testThrottleValue
it "should be triggered immediately and when container is scrolled to the bottom", ->
replaceIndexFile "", throttle
browser.get pathToDocument
expect(getItems().count()).toBe 100
browser.driver.executeScript(scrollToBottomScript(container))
expect(getItems().count()).toBe 100
browser.sleep(throttle)
expect(getItems().count()).toBe 200
it "does not trigger immediately when infinite-scroll-immediate-check is false", ->
replaceIndexFile "infinite-scroll-immediate-check='false'", throttle
browser.get pathToDocument
expect(getItems().count()).toBe 0
element(By.id("force")).click()
expect(getItems().count()).toBe 100
it "respects the disabled attribute and is throttled when page loads", ->
replaceIndexFile "infinite-scroll-disabled='busy'", throttle
browser.get pathToDocument
expect(getItems().count()).toBe 0
element(By.id("action")).click()
expect(getItems().count()).toBe 0
browser.sleep(throttle)
expect(getItems().count()).toBe 100
it "is not throttled when re-enabled if the throttle time has already elapsed", ->
replaceIndexFile "infinite-scroll-disabled='busy'", throttle
browser.get pathToDocument
expect(getItems().count()).toBe 0
browser.sleep(throttle)
element(By.id("action")).click()
expect(getItems().count()).toBe 100
it "respects the infinite-scroll-distance attribute", ->
replaceIndexFile "infinite-scroll-distance='1'", throttle
browser.get pathToDocument
expect(getItems().count()).toBe 100
browser.driver.executeScript(scrollToLastScreenScript(container, 20))
expect(getItems().count()).toBe 100
browser.sleep(throttle)
expect(getItems().count()).toBe 200
describe "with an event handler", ->
it "calls the event handler on an event", ->
replaceIndexFile "infinite-scroll-listen-for-event='anEvent'", throttle
browser.get pathToDocument
expect(getItems().count()).toBe 100
browser.driver.executeScript(collapseItemsScript(container))
expect(getItems().count()).toBe 100
element(By.id("trigger")).click()
expect(getItems().count()).toBe 100
browser.sleep(throttle)
expect(getItems().count()).toBe 200
|
