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Cleaned up Javascript and refactored the functions and tests plus optimized animation of text

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This commit is contained in:
Nico Opiyo 2019-03-29 15:36:32 +03:00
parent fe6130a534
commit c25f4d8197
4 changed files with 426 additions and 216 deletions
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22
openlp/core/display/html/display.css
View File

@ -1,12 +1,12 @@
/* Animation key frames for horizontal scrolling of alert */
@keyframes alert-scrolling-text {
/* @keyframes alert-scrolling-text {
from { margin-left: 100%; }
to { margin-left: -300% }
}
} */
.horizontal-scroll-animation {
animation-duration: 10s;
animation-iteration-count: 1;
animation-iteration-count: 2;
animation-timing-function: linear;
animation-name: alert-scrolling-text;
}
@ -17,11 +17,14 @@
margin: 0;
padding: 0;
left: 0;
z-index: 10;
z-index: 11;
width: 100%;
height: 0%;
min-height: 0%;
overflow: hidden;
visibility:hidden;
display: flex;
flex-direction: row;
align-items: center;
}
.bg-default.middle {
@ -44,16 +47,13 @@
/* ALERT BACKGROUND STYLING */
#alert {
z-index: 12;
position: relative;
top: 50%;
transform: translateY(-50%);
z-index: 12;
overflow: visible;
white-space: nowrap;
color: #ffffff;
visibility: hidden;
}
.no-scroll {
margin: 0 20px;
opacity: 0;
transform: translateX(110%);
}

1
openlp/core/display/html/display.html
View File

@ -26,6 +26,7 @@
}
</style>
<style type="text/css" id="keyframeStyles"></style>
<link rel="stylesheet" type="text/css" href="display.css"></link>
<script type="text/javascript" src="qrc:///qtwebchannel/qwebchannel.js"></script>
<script type="text/javascript" src="reveal.js"></script>

153
openlp/core/display/html/display.js
View File

@ -164,10 +164,6 @@ function _pathToString(path) {
return filename;
}
/**
*
*/
/**
* An audio player with a play list
*/
@ -422,49 +418,129 @@ var Display = {
}
else {
if (this._alertState === AlertState.Displaying || this._alertState === AlertState.DisplayingFromQueue) {
var alertObject = {text: text, settings: alert_settings};
this._alerts.push(JSON.stringify(alertObject));
return null;
addAlertToQueue(text, alert_settings);
}
}
var settings = JSON.parse(alert_settings);
this._alertSettings = settings;
var alertBackground = $("#alert-background")[0];
var alertText = $("#alert")[0];
alertText.innerHTML = text;
Display.setAlertText(text);
Display.initAlertEventListeners();
if (settings.scroll === true) {
Display.setAlertKeyframes($('#alert'[0].scrollWidth));
}
/* Check if the alert is a queued alert */
if (this._alertState !== AlertState.DisplayingFromQueue) {
this._alertState = AlertState.Displaying;
if (Display._alertState !== AlertState.DisplayingFromQueue) {
Display._alertState = AlertState.Displaying;
}
Display.showAlertBackground(settings);
},
/**
* Initialize alert event listeners
*/
initAlertEventListeners: function () {
var alertBackground = $("#alert-background")[0];
var alertText = $("#alert")[0];
alertBackground.addEventListener('transitionend', function (e) {
alertBackground.addEventListener('transitionend', Display.alertTransitionEndEvent, false);
alertText.addEventListener('animationend', Display.alertAnimationEndEvent, false);
},
/**
* Add an alert to the alert queue
* @param {string} text - The alert text to be displayed
* @param {string} setttings - JSON object containing the settings for the alert
*/
addAlertToQueue: function (text, settings) {
var alertObject = {text: text, settings: settings};
this._alerts.push(JSON.stringify(alertObject));
return null;
},
/**
* Set Alert Text
* @param {string} text - The alert text to display
*/
setAlertText: function (text) {
var alertText = $("#alert")[0];
alertText.textContent = text;
},
/**
* Set the keyframe styles for the scrolling text
* @param {int} scrollWidth - The length of the paragraph with the alert text
*/
setAlertKeyframes: function (scrollWidth) {
var keyframeStyle = $('#keyframeStyles')[0];
var scrollWidthPercentage = Math.ceil((((scrollWidth / screen.width) * 100) + 1) / 10) * 10;
scrollWidthPercentage += 110; // Scroll the full text length
var keyframes = "@keyframes alert-scrolling-text {" +
"from { transform: translateX(110%); } " +
"to { transform: translateX(-" + scrollWidthPercentage + "%);}";
keyframeStyle.innerHTML = keyframes;
return keyframes;
},
/**
* The alertTransitionEndEvent called after a transition has ended
*/
alertTransitionEndEvent: function (e) {
e.stopPropagation();
if (Display._transitionState === TransitionState.EntranceTransition) {
Display._transitionState = TransitionState.NoTransition;
Display.showAlertText(Display._alertSettings);
console.log("Show alert has been called");
}
else if (Display._transitionState === TransitionState.ExitTransition) {
Display._transitionState = TransitionState.NoTransition;
alertBackground.classList = "bg-default";
Display.displayNextAlert();
}
});
alertText.addEventListener('animationend', function (e) {
else if (Display._transitionState === "animatingText") {
if (e.propertyName === "transform") {
console.log("The text transform has ended");
}
}
},
/**
* The alertAnimationEndEvent called after a animation has ended
*/
alertAnimationEndEvent: function (e) {
e.stopPropagation();
Display.hideAlertText();
});
},
/**
* Start background entrance transition for display of alert
* @param {object} location - The location of the alert (top, middle or bottom)
* @param {string} JSON object - JSON object containing the alert settings
*/
showAlertBackground: function (settings) {
var alertBackground = $("#alert-background")[0];
var transitionSetting;
switch (settings.location) {
Display.setAlertLocation(settings.location);
alertBackground.style.backgroundColor = settings.background_color;
if (Display._alertState === AlertState.DisplayingFromQueue) {
transitionSetting = "height 1s linear 2s";
}
else {
transitionSetting = "height 1s linear";
}
// Wait for styles to be set first before starting transition
setTimeout( function() {
alertBackground.style.height = "auto";
alertBackground.style.minHeight = "25%";
alertBackground.style.transition = transitionSetting;
alertBackground.style.visibility = "visible";
}, 50);
this._transitionState = TransitionState.EntranceTransition;
},
/**
* Set the location of the alert
* @param {int} location - Integer number with the location of the alert on screen
*/
setAlertLocation: function (location) {
var alertBackground = $("#alert-background")[0];
switch (location) {
case AlertLocation.Top:
alertBackground.classList.add("top");
break;
@ -476,30 +552,16 @@ var Display = {
alertBackground.classList.add("bottom");
break;
}
alertBackground.style.backgroundColor = settings.background_color;
if (this._alertState === AlertState.DisplayingFromQueue) {
transitionSetting = "1s linear 2s";
}
else {
transitionSetting = "1s linear";
}
// Wait for styles to be set first before starting transition
setTimeout( function() {
alertBackground.style.height = "25%";
alertBackground.style.transition = transitionSetting;
alertBackground.style.visibility = "visible";
}, 50);
this._transitionState = TransitionState.EntranceTransition;
},
/**
* Start background exit transition once alert has been displayed
* @param {string} location - Integer showing the location of the alert on screen
* Hide the alert background after the alert has been shown
*/
hideAlertBackground: function () {
var alertBackground = $("#alert-background")[0];
alertBackground.style.height = "0%";
alertBackground.style.transition = "1s linear";
alertBackground.style.minHeight = "0%";
alertBackground.style.transition = "height 1s linear";
alertBackground.className = "bg-default";
this._transitionState = TransitionState.ExitTransition;
this._alertState = AlertState.NotDisplaying;
},
@ -509,11 +571,11 @@ var Display = {
*/
showAlertText: function (settings) {
var alertText = $("#alert")[0];
alertText.style.visibility = "visible";
alertText.style.opacity = 1;
alertText.style.color = settings.font_color;
alertText.style.fontFamily = settings.font_face;
alertText.style.fontSize = settings.font_size + "pt";
alertText.classList.add("no-scroll");
if (settings.scroll) {
var animationSettings = "alert-scrolling-text " + settings.timeout +
"s linear 0s " + settings.repeat + " normal";
@ -523,6 +585,7 @@ var Display = {
else {
Display._animationState = AnimationState.NonScrollingText;
alertText.style.animation = "";
alertText.classList.add("no-scroll");
setTimeout (function () {
Display._animationState = AnimationState.NoAnimation;
Display.hideAlertText();
@ -536,11 +599,12 @@ var Display = {
var alertText = $('#alert')[0];
alertText.style.animation = "";
alertText.classList = "";
alertText.style.visibility = "hidden";
alertText.style.opacity = 0;
alertText.style.color = "rgb(255, 255, 255)";
alertText.style.fontSize = "40pt";
Display._animationState = AnimationState.NoAnimation;
Display.hideAlertBackground();
Display.resetAlertKeyframes();
},
/**
* Display the next alert in the queue
@ -555,6 +619,13 @@ var Display = {
return null;
}
},
/**
* Reset animation keyframes after displaying alert
*/
resetAlertKeyframes: function () {
var keyframeStyle = document.getElementById('keyframeStyles');
keyframeStyle.innerHTML = "";
},
/**
* Add a slide. If the slide exists but the HTML is different, update the slide.
* @param {string} verse - The verse number, e.g. "v1"

406
tests/js/test_display.js
View File

@ -154,20 +154,20 @@ describe("The Display object", function () {
});
describe("Display.alert", function () {
var alertBackground, alert, settings;
var alertBackground, alertText, settings;
beforeEach(function () {
document.body.innerHTML = "";
alertBackground = document.createElement("div");
alertBackground.setAttribute("id", "alert-background");
document.body.appendChild(alertBackground);
alert = document.createElement("p");
alert.setAttribute("id","alert");
alertBackground.appendChild(alert);
alertText = document.createElement("p");
alertText.setAttribute("id","alert");
alertBackground.appendChild(alertText);
settings = '{ \
"location": 1, "font_face": "Segoe UI, Tahoma, Geneva, Verdana, sans-serif", \
"font_size": 40, "font_color": "#ffffff", "background_color": "#660000", \
"timeout": 5, "repeat": 1, "scrolling_text": true \
"timeout": 5, "repeat": 1, "scroll": true \
}';
});
@ -176,29 +176,72 @@ describe("Display.alert", function () {
});
it("should set the correct alert text", function () {
spyOn("Display", "addAlertToQueue");
spyOn("Display", "initAlertEventListeners");
spyOn("Display", "setAlertKeyframes");
spyOn("Display", "showAlertBackground");
Display.alert("OPEN-LP-3.0 Alert Test", settings);
expect(Display.setAlertText).toHaveBeenCalled();
expect(alert.innerHTML).toEqual("OPEN-LP-3.0 Alert Test");
});
it("should add alerts to the queue correctly if it called when an alert is displaying", function () {
it("should call the addAlertToQueue method if an alert is displaying", function () {
spyOn("Display", "addAlertToQueue");
Display._alerts = [];
Display._alertState = AlertState.Displaying;
var alertObject = {text: "Testing alert queue", settings: settings};
var queuedAlert = JSON.stringify(alertObject);
Display.alert("Testing alert queue", settings);
var text = "Testing alert queue";
expect(Display._alerts.length).toEqual(1);
expect(Display._alerts[0]).toEqual(queuedAlert);
Display.alert(text, settings);
expect(Display.addAlertToQueue).toHaveBeenCalledWith(text, settings);
});
it("should set the alert settings correctly", function() {
spyOn("Display", "setAlertKeyframes");
Display.alert("Testing settings", settings);
console.debug("Settings", JSON.parse(settings));
expect(Display._alertSettings).toEqual(JSON.parse(settings));
});
});
describe("Display.initAlertEventListeners", function() {
var alertBackground, styles, alertText;
beforeEach(function() {
document.body.innerHTML = "";
styles = document.createElement("style");
styles.innerHTML = "@keyframes test { from {background-color: red;} \
to {background-color: yellow;}";
document.head.appendChild(styles);
alertBackground = document.createElement("div");
alertBackground.setAttribute("id", "alert-background");
document.body.appendChild(alertBackground);
alertText = document.createElement("p");
alertText.setAttribute("id","alert");
alertBackground.appendChild(alertText);
alertBackground.style.opacity = 0;
alertBackground.style.transition = "opacity 0.001s linear";
Display.initAlertEventListeners();
});
it("should set the transition end event listener correctly", function() {
spyOn("Display", "alertTransitionEndEvent");
alertBackground.style.opacity = 1;
expect(Display.alertTransitionEndEvent).toHaveBeenCalled();
});
it("should set the animation end event listener correctly", function() {
spyOn("Display", "alertAnimationEndEvent");
alertText.style.animation = "test 0.01s linear";
expect(Display.alertAnimationEndEvent).toHaveBeenCalled();
});
});
describe("Display.showAlertBackground", function () {
var alertBackground, css, settings, style;
@ -234,57 +277,184 @@ describe("Display.showAlertBackground", function () {
setTimeout(function () {
expect(alertBackground.style.backgroundColor).toEqual(settings.background_color);
expect(alertBackground.style.height).toEqual("25%");
expect(alertBackground.style.transition).toEqual("1s linear");
expect(alertBackground.style.height).toEqual("auto");
expect(alertBackground.style.minHeight).toEqual("25%");
expect(alertBackground.style.transition).toEqual("height 1s linear");
expect(alertBackground.style.visibility).toEqual("visible");
done();
}, 50);
});
it("should set the correct class when location is top of the page", function () {
settings.location = 0;
Display.showAlertBackground(settings);
expect(alertBackground.className).toEqual("bg-default top");
});
it("should set the correct class when location is middle of the page", function () {
settings.location = 1;
Display.showAlertBackground(settings);
expect(alertBackground.className).toEqual("bg-default middle");
});
it("should set the correct class when location is bottom of the page", function () {
Display.showAlertBackground(settings);
expect(alertBackground.className).toEqual("bg-default bottom");
});
});
describe("Display.hideAlertBackground", function () {
var alertBackground;
beforeEach( function() {
document.body.innerHTML = "";
alertBackground = document.createElement("div");
alertBackground.setAttribute("id", "alert-background");
document.body.appendChild(alertBackground);
Display._alerts = [];
});
it("should set the styles correctly when the hideAlertBackground method is called", function () {
it("reset the background to default once an alert has been displayed", function() {
//spyOn(Display, "displayNextAlert");
Display.hideAlertBackground();
expect(alertBackground.style.height).toEqual('0%');
expect(alertBackground.style.transition).toEqual("1s linear");
});
it("should set the correct states when hideAlertBackground is called", function () {
Display.hideAlertBackground();
expect(Display._alertState).toEqual(AlertState.NotDisplaying);
expect(Display._transitionState).toEqual(TransitionState.ExitTransition);
expect(Display._alertState).toEqual(AlertState.NotDisplaying);
expect(alertBackground.style.transition).toEqual("height 1s linear");
expect(alertBackground.style.height).toEqual("0%");
expect(alertBackground.style.minHeight).toEqual("0%");
expect(alertBackground.className).toEqual("bg-default");
});
});
describe("Display.setAlertText", function() {
var alertText;
beforeEach( function() {
document.body.innerHTML = "";
alertText = document.createElement("p");
alertText.setAttribute("id", "alert");
document.body.appendChild(alertText);
});
it("should set the alert text correctly", function () {
Display.setAlertText("OpenLP Alert Text");
expect(alertText.textContent).toEqual("OpenLP Alert Text");
});
});
describe("Display.setAlertLocation", function() {
beforeEach(function() {
document.body.innerHTML = "";
alertBackground = document.createElement("p");
alertBackground.setAttribute("id","alert-background");
alertBackground.setAttribute("class","bg-default");
document.body.appendChild(alertBackground);
});
it("should set the correct class when location is top of the page", function () {
Display.setAlertLocation(0);
expect(alertBackground.className).toEqual("bg-default top");
});
it("should set the correct class when location is middle of the page", function () {
Display.setAlertLocation(1);
expect(alertBackground.className).toEqual("bg-default middle");
});
it("should set the correct class when location is bottom of the page", function () {
Display.setAlertLocation(2);
expect(alertBackground.className).toEqual("bg-default bottom");
});
});
describe("Display.showAlertText", function () {
var alertText, settings;
beforeEach(function () {
document.body.innerHTML = "";
alertText = document.createElement("p");
alertText.setAttribute("id","alert");
document.body.appendChild(alertText);
settings = {
"location": 2, "font_face": "Tahoma", "font_size": 40,
"font_color": "rgb(255, 255, 255)", "background_color": "rgb(102, 0, 0)",
"timeout": 0.01, "repeat": 1, "scroll": true
};
Display._transitionState = TransitionState.EntranceTransition;
});
it("should set the correct styles on the text", function() {
Display.showAlertText(settings);
expect(alertText.style.opacity).toEqual('1');
expect(alertText.style.color).toEqual("rgb(255, 255, 255)");
expect(alertText.style.fontFamily).toEqual("Tahoma");
expect(alertText.style.fontSize).toEqual("40pt");
});
it("should set the correct animation when text is set to scroll)", function () {
Display.showAlertText(settings);
expect(alertText.style.animation).toEqual("alert-scrolling-text " + settings.timeout + "s linear 0s 1 normal");
expect(Display._animationState).toEqual(AnimationState.ScrollingText);
});
it("should set the correct styles when text is not scrolling", function (done) {
settings.scroll = false;
Display._transitionState = TransitionState.EntranceTransition;
spyOn(Display, "hideAlertText");
Display.showAlertText(settings);
expect(alertText.style.opacity).toEqual('1');
expect(alertText.style.animation).toEqual("");
expect(Display._animationState).toEqual(AnimationState.NonScrollingText);
setTimeout (function () {
expect(alertText.className).toEqual("no-scroll");
expect(Display._animationState).toEqual(AnimationState.NoAnimation);
expect(Display.hideAlertText).toHaveBeenCalled();
done();
}, settings.timeout * 1000);
});
});
describe("Display.hideAlertText", function() {
var alertBackground, alertText, keyframeStyle;
beforeEach(function () {
document.body.innerHTML = "";
// keyframeStyle = document.createElement("style");
// keyframeStyle.setAttribute("id", "keyframeStyles");
// document.head.appendChild(keyframeStyle);
// alertBackground = document.createElement("div");
// alertBackground.setAttribute("id", "alert-background");
// document.body.appendChild(alertBackground);
alertText = document.createElement("p");
alertText.setAttribute("id", "alert");
alertText.style.opacity = 1;
alertText.style.animation = "alert-scrolling-text 5s linear 0s 1 bg-default";
document.body.appendChild(alertText);
Display._animationState = AnimationState.ScrollingText;
});
it("should reset the text styles and animation state after the text has scrolled", function() {
spyOn(Display, "resetAlertKeyframes");
spyOn(Display, "hideAlertBackground");
Display.hideAlertText();
expect(alertText.style.animation).toEqual("");
expect(alertText.style.opacity).toEqual('0');
expect(alertText.style.color).toEqual("rgb(255, 255, 255)");
expect(alertText.style.fontSize).toEqual("40pt");
expect(Display._animationState).toEqual(AnimationState.NoAnimation);
});
it("should call the hideAlertBackground and resetAlertKeyframes methods", function() {
spyOn(Display, "hideAlertBackground");
spyOn(Display, "resetAlertKeyframes");
Display.hideAlertText();
expect(Display.hideAlertBackground).toHaveBeenCalled();
expect(Display.resetAlertKeyframes).toHaveBeenCalled();
});
});
describe("Display.addAlertToQueue", function () {
it("should add an alert to the queue if one is displaying already", function() {
Display._alerts = [];
Display._alertState = AlertState.Displaying;
settings = '{ \
"location": 1, "font_face": "Segoe UI, Tahoma, Geneva, Verdana, sans-serif", \
"font_size": 40, "font_color": "#ffffff", "background_color": "#660000", \
"timeout": 5, "repeat": 1, "scrolling_text": true \
}';
var alertObject = {text: "Testing alert queue", settings: settings};
var queuedAlert = JSON.stringify(alertObject);
Display.addAlertToQueue("Testing alert queue", settings);
expect(Display._alerts.length).toEqual(1);
expect(Display._alerts[0]).toEqual(queuedAlert);
});
});
@ -314,106 +484,74 @@ describe("Display.displayNextAlert", function () {
});
});
describe("Display.hideAlertText", function() {
var alertBackground, alertText;
beforeEach(function () {
document.body.innerHTML = "";
alertBackground = document.createElement("div");
alertBackground.setAttribute("id", "alert-background");
document.body.appendChild(alertBackground);
alertText = document.createElement("p");
alertText.setAttribute("id", "alert");
alertText.style.visibility = "visible";
alertText.style.animation = "alert-scrolling-text 5s linear 0s 1 bg-default";
alertBackground.appendChild(alertText);
Display._animationState = AnimationState.ScrollingText;
});
it("should reset the text styles and animation state after the text has scrolled", function() {
Display.hideAlertText();
expect(alertText.style.animation).toEqual("");
expect(alertText.style.visibility).toEqual("hidden");
expect(alertText.style.color).toEqual("rgb(255, 255, 255)");
expect(alertText.style.fontSize).toEqual("40pt");
expect(Display._animationState).toEqual(AnimationState.NoAnimation);
});
it("should call the alert background method", function() {
spyOn(Display, "hideAlertBackground");
Display.hideAlertText();
expect(Display.hideAlertBackground).toHaveBeenCalled();
});
});
describe("Display.showAlertText", function () {
var alertText, settings;
beforeEach(function () {
document.body.innerHTML = "";
alertText = document.createElement("p");
alertText.setAttribute("id","alert");
document.body.appendChild(alertText);
settings = {
"location": 2, "font_face": "Tahoma", "font_size": 40,
"font_color": "rgb(255, 255, 255)", "background_color": "rgb(102, 0, 0)",
"timeout": 0.01, "repeat": 1, "scroll": true
};
describe("Display.alertTransitionEndEvent", function() {
it("should set the correct state and call showAlertText after the alert entrance transition", function() {
var fake_settings = {test: "fake_settings"};
Display._alertSettings = fake_settings;
spyOn("Display", "showAlertText");
Display._transitionState = TransitionState.EntranceTransition;
var event = document.createEvent("animationend");
Display.alertTransitionEnd(event);
expect(Display._transitionState).toEqual(TransitionState.NoTransition);
expect(Display.alertTransitionEndEvent).toHaveBeenCalledWith(fake_settings);
});
it("should set the correct styles on the text", function() {
Display.showAlertText(settings);
it("should set the correct state, class and call displayNextAlert after the alert exit transition", function() {
spyOn("Display", "displayNextAlert");
Display._transitionState = TransitionState.ExitTransition;
var event = document.createEvent("animationend");
Display.alertTransitionEnd(event);
expect(alertText.style.visibility).toEqual("visible");
expect(alertText.style.color).toEqual("rgb(255, 255, 255)");
expect(alertText.style.fontFamily).toEqual("Tahoma");
expect(alertText.style.fontSize).toEqual("40pt");
});
it("should set the correct animation when text is set to scroll)", function () {
Display.showAlertText(settings);
expect(alertText.style.animation).toEqual("alert-scrolling-text " + settings.timeout + "s linear 0s 1 normal");
expect(Display._animationState).toEqual(AnimationState.ScrollingText);
});
it("should set the correct styles on entrance transition (without scroll)", function (done) {
settings.scroll = false;
Display._transitionState = TransitionState.EntranceTransition;
spyOn(Display, "hideAlertBackground");
Display.showAlertText(settings);
expect(alertText.style.visibility).toEqual("visible");
expect(alertText.style.animation).toEqual("");
expect(Display._animationState).toEqual(AnimationState.NonScrollingText);
setTimeout (function () {
expect(alertText.className).toEqual("no-scroll");
expect(Display._animationState).toEqual(AnimationState.NoAnimation);
expect(Display.hideAlertBackground).toHaveBeenCalled();
done();
}, settings.timeout * 1000);
expect(Display._transitionState).toEqual(TransitionState.NoTransition);
expect(Display.displayNextAlert).toHaveBeenCalled();
});
});
describe("Display.hideAlertBackground", function () {
var alertBackground;
describe("Display.alertAnimationEndEvent", function () {
it("should call the hideAlertText method", function() {
spyOn("Display","hideAlertText");
expect(Display.hideAlertText).toHaveBeenCalled();
});
});
describe("Display.setAlertKeyframes", function () {
var keyframeStyle;
beforeEach( function () {
document.body.innerHTML = "";
alertBackground = document.createElement("div");
alertBackground.setAttribute("id", "alert-background");
alertBackground.setAttribute("class", "bg-default");
document.body.appendChild(alertBackground);
document.head.innerHTML = "";
keyframeStyle = document.createElement("style");
keyframeStyle.setAttribute("id", "keyframeStyles");
document.head.appendChild(keyframeStyle);
});
it("reset the background to default once an aletr has been displayed", function() {
spyOn(Display, "displayNextAlert");
Display.hideAlertBackground();
it("should set the correct keyframes", function () {
var scrollWidth = 3200;
var scrollWidthPercentage = (Math.ceil((((scrollWidth / screen.width) * 100) + 1) / 10) * 10) + 110;
var keyframeHtml = "@keyframes alert-scrolling-text {" +
"from { transform: translateX(110%); } " +
"to { transform: translateX(-" + scrollWidthPercentage +"%);}";
expect(Display._transitionState).toEqual(TransitionState.ExitTransition);
expect(Display._alertState).toEqual(AlertState.NotDisplaying);
expect(alertBackground.style.height).toEqual("0%");
expect(alertBackground.className).toEqual("bg-default");
expect(Display.setAlertKeyframes(scrollWidth)).toEqual(keyframeHtml);
expect(keyframeStyle.innerHTML).toEqual(keyframeHtml);
});
});
describe("Display.resetAlertKeyframes", function () {
var keyframeStyle;
beforeEach( function () {
document.head.innerHTML = "";
keyframeStyle = document.createElement("style");
keyframeStyle.setAttribute("id", "keyframeStyles");
document.head.appendChild(keyframeStyle);
keyframeStyle.innerHTML = "@keyframes alert-scrolling-text {" +
"from { margin-left: 110%; } to { margin-left: -220;}";
});
it("shoud reset the key frames after scrolling the text", function () {
Display.resetAlertKeyframes();
expect(keyframeStyle.innerHTML).toEqual("");
});
});