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Added alert animations and transitions

This commit is contained in:
gregzovic@bazaar.launchpad.net 2019-01-24 12:49:45 +03:00
parent 28a920b540
commit 178df476bd
4 changed files with 270 additions and 5 deletions
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77
openlp/core/display/html/display.html
View File

@ -24,14 +24,91 @@
visibility: visible;
z-index: -1;
}
/* Animation key frames for horizontal scrolling of alert */
@keyframes alert-scrolling-text {
from { margin-left: 100%; }
to { margin-left: -300% }
}
/* Middle fade-in alert animation */
@keyframes middle-fade-in {
from { opacity: 0;}
to { opacity: 1;}
}
/* Middle fade-out alert animation */
@keyframes middle-fade-out {
from { opacity: 1;}
to { opacity: 0;}
}
/* Fade in when alert location is in the middle */
.middle-entrance-animation {
animation-duration: 2s;
animation-timing-function: linear;
animation-name: middle-fade-in;
}
/* Fade out when alert location is in the middle */
.middle-exit-animation {
animation-duration: 2s;
animation-timing-function: linear;
animation-name: middle-fade-out;
}
.horizontal-scroll-animation {
animation-duration: 10s;
animation-iteration-count: 1;
animation-timing-function: linear;
animation-name: alert-scrolling-text;
}
/* ALERT STYLING */
#alert-background {
position: absolute;
margin: 0;
padding: 0;
left: 0px;
right: 0px;
z-index: 10;
width: 100%;
height: 25%;
vertical-align: middle;
color: #ffffff;
background-color: #660000;
overflow: hidden;
visibility:hidden;
}
#alert {
position: relative;
top: 50%
transform: translateY(-50%);
margin-top: 0%;
margin-right: 0%;
margin-left: 100%;
margin-bottom: 0%;
z-index: 11;
overflow: visible;
white-space: nowrap;
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
font-size: 100pt;
color: #ffffff;
visibility: hidden;
}
</style>
<script type="text/javascript" src="qrc:///qtwebchannel/qwebchannel.js"></script>
<script type="text/javascript" src="reveal.js"></script>
<script type="text/javascript" src="display.js"></script>
</head>
<body>
<div class="reveal">
<div id="global-background" class="slide-background present" data-loaded="true"></div>
<div id="alert-background"><p id="alert">Testing alerts</p></div>
<div class="slides"></div>
<div class="footer"></div>
</div>

149
openlp/core/display/html/display.js
View File

@ -52,6 +52,31 @@ var AudioState = {
Stopped: "stopped"
};
/**
* Transition state enumeration
*/
var TransitionState = {
EntranceTransition: "entranceTransition",
NoTransition: "noTransition",
ExitTransition: "exitTransition"
};
/**
* Animation state enumeration
*/
var AnimationState = {
NoAnimation: "noAnimation",
ScrollingAnimation: "scrollingAnimation",
FadeInAnimation: "fadeInAnimation",
FadeOutAnimation: "fadeOutAnimation"
};
/**
*
* @param {Location} selector
*/
/**
* Return an array of elements based on the selector query
* @param {string} selector - The selector to find elements
@ -131,6 +156,10 @@ function _pathToString(path) {
return filename;
}
/**
*
*/
/**
* An audio player with a play list
*/
@ -249,6 +278,8 @@ AudioPlayer.prototype.stop = function () {
*/
var Display = {
_slides: {},
_transitionState: TransitionState.NoTransition,
_animationState: AnimationState.NoAnimation,
_revealConfig: {
margin: 0.0,
minScale: 1.0,
@ -372,14 +403,124 @@ var Display = {
* @param {string} text - The alert text
* @param {int} location - The location of the text (top, middle or bottom)
*/
alert: function (text, location) {
console.debug(" alert text: " + text, ", location: " + location);
alert: function (text, location) {
console.debug(" alert text: " + text + ", location: " + location);
if(text == ""){
return null;
}
var alertBackground = $("#alert-background")[0];
var alertText = $("#alert")[0];
alertText.innerHTML = text;
/* Bring in the transition background */
Display._transitionState = Display.alertEntranceTransition(location);
alertBackground.addEventListener('transitionend', function(e){
e.stopPropagation();
console.debug("Transition end event captured");
if(Display._transitionState == TransitionState.EntranceTransition){
console.debug("Entrance Transition Condition");
alertText.style.visibility = "visible";
alertText.classList.add("horizontal-scroll-animation");
}else if(Display._transitionState == TransitionState.ExitTransition){
console.debug("Exit Transition Condition");
Display._transitionState = TransitionState.NoTransition;
alertBackground.style.visibility = "hidden";
alertBackground.classList.remove("middle-exit-animation");
}
});
alertBackground.addEventListener('animationend',function(){
console.debug("Noticed an animation has ended. The animation state is: ", Display._animationState);
if(Display._animationState == AnimationState.FadeInAnimation){
console.debug("Entrance Animation Condition");
alertText.style.visibility = "visible";
alertText.classList.add("horizontal-scroll-animation");
alertText.classList.remove("middle-entrance-animation");
Display._animationState = AnimationState.ScrollingAnimation;
}else if(Display._animationState == AnimationState.FadeOutAnimation){
console.debug("Exit Animation Condition");
alertBackground.style.visibility = "hidden";
alertBackground.classList.remove("middle-exit-animation");
Display._animationState = AnimationState.NoAnimation;
}else if(alertText.classList.contains("horizontal-scroll-animation")){
console.debug("Scrolling Animation Ended");
alertText.classList.remove("horizontal-scroll-animation");
Display._animationState = AnimationState.NoAnimation;
Display._transitionState = Display.alertExitTransition(location);
}
});
/*
* The implementation should show an alert.
* It should be able to handle receiving a new alert before a previous one is "finished", basically queueing it.
*/
return;
},
//return;
},
/**
* Start background entrance transition for display of alert
* @param {string} location - String showing the location of the alert on screen
*/
alertEntranceTransition: function (location){
console.debug("Alert Entrance Transition Method. The value of animation state is: " + Display._animationState);
var alertBackground = $("#alert-background")[0];
switch(location){
case "0":
console.debug("Top Location Entrance Transition");
alertBackground.style.top = '0';
alertBackground.style.transition = "2s linear";
alertBackground.style.height = "25%";
break;
case "1":
console.debug("Middle Location Entrance Animation");
console.debug("The value of animation state is: " + Display._animationState);
alertBackground.style.top = ((window.innerHeight - alertBackground.clientHeight) / 2)
+ 'px';
alertBackground.classList.add("middle-entrance-animation");
Display._animationState = AnimationState.FadeInAnimation;
break;
case "2":
default:
console.debug("Bottom Location Entrance Transition");
alertBackground.style.bottom = '0';
alertBackground.style.transition= "2s linear";
alertBackground.style.height = "25%";
break;
}
alertBackground.style.visibility = "visible";
return TransitionState.EntranceTransition;
},
/**
* Start background exit transition once alert has been displayed
* @param {string} location - Integer showing the location of the alert on screen
*/
alertExitTransition: function(location){
console.debug("Alert Exit Transition");
var alertBackground = $("#alert-background")[0];
if(location == "0" || location == "2"){
console.debug("Exit Transition for top or bottom");
alertBackground.style.height = "0%";
alertBackground.style.transition = '2s linear';
}else if(location == "1"){
// alertBackground.style.opacity = 0;
console.debug("Fade out Animation");
alertBackground.classList.add("middle-exit-animation");
Display._animationState = AnimationState.FadeOutAnimation;
}
return TransitionState.ExitTransition;
},
/**
* Add a slides. If the slide exists but the HTML is different, update the slide.

2
openlp/core/display/window.py
View File

@ -401,4 +401,4 @@ class DisplayWindow(QtWidgets.QWidget):
"""
Set an alert
"""
self.run_javascript('Display.alert({text}, {location});'.format(text=text, location=location))
self.run_javascript('Display.alert("{text}", "{location}");'.format(text=text, location=location))

47
tests/js/test_display.js
View File

@ -18,6 +18,14 @@ describe("The enumeration object", function () {
it("AudioState should exist", function () {
expect(AudioState).toBeDefined();
});
it("TransitionState should exist", function(){
expect(TransitionState).toBeDefined();
});
it("AnimationState should exist", function(){
expect(AnimationState).toBeDefined();
});
});
describe("The function", function () {
@ -138,8 +146,47 @@ describe("The Display object", function () {
Display.goToSlide("v1");
expect(Reveal.slide).toHaveBeenCalledWith(0);
});
it("should have an alert() method", function () {
expect(Display.alert).toBeDefined();
});
it("should have a correctly functioning alert() method", function (){
spyOn(Display,"alert");
Display.alert("OPEN-LP-3.0 Alert Test", "2");
expect(Display.alert).toHaveBeenCalledWith("OPEN-LP-3.0 Alert Test", "2");
});
});
describe("Display.alert",function(){
beforeEach(function(){
var alertBackground = document.getElementById("alert-background");
var alertText = document.getElementById("alert");
});
it("should return if called without any text", function(){
spyOn(Display, "alert");
Display.alert("", "2");
expect(Display.alert).toHaveBeenCalled();
});
it("should call alertEntranceTransition", function(){
spyOn(Display,"alertEntranceTransition");
Display.alertEntranceTransition("2");
expect(Display.alertEntranceTransition).toHaveBeenCalledWith("2");
});
it("should call alertExitTransition", function(){
spyOn(Display,"alertExitTransition");
Display.alertExitTransition("2");
expect(Display.alertExitTransition).toHaveBeenCalledWith("2");
});
});
describe("Display.addTextSlide", function () {
beforeEach(function() {
document.body.innerHTML = "";