Class s7sdk.common.ControlBar
The ControlBar
is a convenience component which acts as container to a set of UI elements like buttons and such. ControlBar
supports fade in/out animation which hides control bar and all managed components on user idle. In particular ControlBar
can be used to group video controls
(PlayPauseButton
, VideoScrubber
, VideoTime
, MutableVolume
and FullScreenButton
) in video player application.
The component is added to a ControlBar
simply by using ControlBar
's DOM element as a container or by calling attach()
method.
The area where ControlBar
should track user events is specified using attachView()
method.
The ControlBar
supports optional scrolling in case its elements do not fit into available ControlBar
width. In order to
activate this scrolling feature developer needs to set CSS position
property to absolute
for
.s7controlbar .s7innercontrolbarcontainer
element (the default setting is static
).
Also, developer needs to make sure that inner components and DOM elements added to the ControlBar
are not using absolute or fixed positioning.
When the scrolling is activated the ControlBar
renders a left/right scroll button in the right-hand side. Activating this button
moves ControlBar
elements all the way to the right; activating it yet again returns inner elements to their original position.
The left/right scroll button appearance is controlled by the .s7controlbar .s7scrollleftrightbutton
selector.
Customizing Behavior Using Modifiers
Modifiers change ControlBar
default behavior. They are passed to the component by the ParameterManager
instance
specified in the constructor.
The following modifiers are supported:
Modifier | Syntax | Description | Default |
transition | none|fade[,delaytohide[, duration] | Specifies the effect type that is used to show or hide the ControlBar and its content. Set none for instant show or hide. Set fade to provide a gradual fade in and fade out effect. Not supported on Internet Explorer 7 and 8. Set delaytohide to specify the time in seconds between the last mouse or touch event as registered by the component and the time control bar hides. If this argument is set to -1 the component never triggers its auto-hide effect and it is always visible on the screen. Set duration to set the number of seconds duration of the fade in and fade out animation. | fade,2,0.5 |
Defining the Appearance using CSS
You can define the appearance of the ControlBar
component using CSS rules. All Adobe Experience Viewers HTML5 SDK components use class selectors for styling. You can style the body of the ControlBar
component by using
the .s7controlbar
class selector. The styles that are associated with this class selector are applied to all instances of the ControlBar
component. You can style particular instances by prefixing
the class rule with the instance #id. For example, styling rules for #myComp.s7controlbar
are applied only to the particular ControlBar
instance.
CSS Class | Attribute Selector | Description |
.s7controlbar | (None) | Represents the main body of the ControlBar component. |
.s7controlbar .s7innercontrolbarcontainer | (None) | Represents the inner ControlBar container components and DOM elements are added to. Author may need to adjust its position CSS property in order to activate optional scrolling feature as described in component's documentation. |
.s7controlbar .s7scrollleftrightbutton | state=[up|over|down] | Represents the left/right scroll button used for scrolling ControlBar content. |
Constructor Attributes | Constructor Name and Description |
---|---|
s7sdk.common.ControlBar(container, settings, compId)
|
Method Attributes | Method Name and Description |
---|---|
attach(component)
Attaches an SDK component or arbitrary DOM object to the
ControlBar . |
|
attachView(view, keepVisible)
Attaches an SDK component or arbitrary DOM object (view) to the
ControlBar , the control bar will listen to mouse/touch events
within the area of that view and show/hide control bar appropriately using animation configured with transition modifier. |
|
detach(component)
Detaches DOM object or SDK component previously registered using
attach() method from the ControlBar . |
|
Detaches all DOM objects or SDK components previously registered using
attachView() method from the ControlBar . |
|
detachView(view)
Detaches DOM object or SDK component previously registered using
attachView() method from the ControlBar . |
|
dispose()
Dispose is used to remove itself and all sub-elements from the DOM
|
|
Gets the reference to the component since the constructor function returns a dynamic wrapper not the component itself.
|
|
Returns the current inner height of the component.
|
|
getWidth()
Returns the current inner width of the component.
|
|
resize(w, h)
Resize the ControlBar.
|
|
setCSS(classname, property, value)
Sets a particular CSS class and property on a component
|
|
setModifier(modObj)
Sets 1-N # of modifiers for the component.
|
Example Code
This example demonstrates how to use the ControlBar component in a video viewer. In this example a Container object,
a VideoPlayer object, a VideoControlBar object, a PlayPauseButton object, a VideoScrubber object, a VideoTime object,
a MutableVolume object, and a FullScreenButton object are created. Together these components create a fully functional
video player with all the standard controls and features most users expect when watching video on the Web.
The code below does the following:
- The Adobe Experience Viewers HTML5 SDK is linked to the page and the required s7sdk components are included in the document head.
- CSS Styles are defined in the document head to control the appearance of the SDK components.
- The s7sdk.Util.init() method is called to initialize the SDK.
- A ParameterManager object is created to handle component modifiers for the viewer.
- An initViewer() function is defined. This function initializes a number of modifiers (hard coded for example purposes),
then creates the component objects required for this simple example. Notice that after the ControlBar component object is
created the attachView() method is called with the VideoPlayer object as a parameter. The initViewer() function also adds
multiple event listeners that designate functions to handle relevant component events (which might be dispatched by the
components as a result of user interactions, changes in a component's state, etc.).
- Handler functions are defined to respond to the component event listeners added in the initViewer() function.
- An event listener is added to the ParameterManager object that designates the initViewer() function as the handler
to call when the Adobe Experience Viewers HTML5 SDK is loaded and ready.
- Finally, the init() method is called on the ParameterManager object to start the viewer.
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<!-- removed height=device-height, -->
<meta name="viewport" content="user-scalable=no, height=device-height,
width=device-width, initial-scale=1.0, maximum-scale=1.0"/>
<!-- Hiding the Safari on iPhone OS UI components -->
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black" />
<meta name="apple-touch-fullscreen" content="YES" />
<!-- Specifying a per-page Home screen icon -->
<link rel="apple-touch-icon" href=""/>
<link rel="apple-touch-startup-image" href="" />
<title>ControlBar Example</title>
<script language="javascript" type="text/javascript"
src="../js/s7sdk/utils/Utils.js"></script>
<script language="javascript" type="text/javascript">
s7sdk.Util.lib.include('s7sdk.common.Container');
s7sdk.Util.lib.include('s7sdk.common.Button');
s7sdk.Util.lib.include('s7sdk.video.VideoPlayer');
s7sdk.Util.lib.include('s7sdk.common.ControlBar');
s7sdk.Util.lib.include('s7sdk.video.VideoControls');
</script>
<style type="text/css" media="screen">
.s7container {
position: absolute;
width: 512px;
height: 315px;
}
.s7videoplayer {
position: absolute;
width: 512px;
height: 288px;
}
.s7controlbar {
position: absolute;
bottom: 30px;
left: 46px;
}
#mutableVolume {
top: 2px;
right: 30px;
}
#videoTime {
top:4px;
right: 60px;
}
#playpauseBtn {
top: 2px;
left: 2px;
}
#videoScrubber{
top: 2px;
left: 36px;
}
#fullscreenBtn{
top: 2px;
right: 2px;
}
</style>
</head>
<body style="margin: 0 0;overflow:hidden;">
<script language="JavaScript" type="text/javascript">
var params, container, videoPlayer, controlBar, playPauseButton,
fullScreenButton, videoTime, videoScrubber, mutableVolume;
// Initialize the SDK
s7sdk.Util.init();
// Create ParameterManager instance to handles modifiers
params = new s7sdk.ParameterManager();
// Define the function that initializes the viewer
function initViewer(){
// Set hardcoded modifiers (not required when values are specified on the url)
params.push("serverurl", "https://s7d1.scene7.com/is/image/");
params.push("videoserverurl", "https://s7d1.scene7.com/is/content/");
params.push("asset", "Viewers/Glacier_Preview_Baseline");
params.push("size", "512,288");
params.push("autoplay", "1");
params.push("autoload", "1");
params.push("playback", "auto");
params.push("singleclick", "playPause");
// Create the Container component object
container = new s7sdk.Container(null, params, "s7container");
// Create the VideoPlayer component object with native controls
videoPlayer = new s7sdk.video.VideoPlayer(container, params, "myVideoPlayer");
// Create the ControlBar component object
controlBar = new s7sdk.common.ControlBar(container, params, "s7vtoolbar");
// Attach the VideoPlayer object to the ControlBar
controlBar.attachView(videoPlayer, false);
// Create the PlayPauseButton component object
playPauseButton = new s7sdk.common.PlayPauseButton("s7vtoolbar", params, "playpauseBtn");
// Create the the VideoScrubber component object
videoScrubber = new s7sdk.video.VideoScrubber("s7vtoolbar", params, "videoScrubber");
// Create the VideoTime component object
videoTime = new s7sdk.video.VideoTime("s7vtoolbar", params, "videoTime");
// Create the MutableVolume component object
mutableVolume = new s7sdk.video.MutableVolume("s7vtoolbar", params, "mutableVolume");
// Create the FullScreenButton component object
fullScreenButton = new s7sdk.common.FullScreenButton("s7vtoolbar", params, "fullscreenBtn");
// Add event listeners for Container resize events and fullscreen events
container.addEventListener(s7sdk.ResizeEvent.COMPONENT_RESIZE, onContainerResize,false);
container.addEventListener(s7sdk.event.ResizeEvent.FULLSCREEN_RESIZE, onContainerFullScreen, false);
// Add an event listener for VideoPlayer state change events
videoPlayer.addEventListener(s7sdk.event.CapabilityStateEvent.NOTF_VIDEO_CAPABILITY_STATE, onNotifyVideoState, false);
// Add an event listener for VideoPlayer time change events
videoPlayer.addEventListener(s7sdk.event.VideoEvent.NOTF_CURRENT_TIME, onNotifyVideoTime, false);
// Add an event listener for the VideoPlayer duration change event
videoPlayer.addEventListener(s7sdk.event.VideoEvent.NOTF_DURATION, onNotifyVideoTime, false);
// Add an event listener for the VideoPlayer load progress events
videoPlayer.addEventListener(s7sdk.event.VideoEvent.NOTF_LOAD_PROGRESS, onNotifyVideoTime, false);
// Add an event listener for PlayPauseButton click events
playPauseButton.addEventListener("click", onPlayPauseButtonClick);
// Add event listeners for the VideoScrubber slider interaction events
videoScrubber.addEventListener(s7sdk.event.SliderEvent.NOTF_SLIDER_DOWN, onNotifyScrubberEvent);
videoScrubber.addEventListener(s7sdk.event.SliderEvent.NOTF_SLIDER_MOVE, onNotifyScrubberEvent);
videoScrubber.addEventListener(s7sdk.event.SliderEvent.NOTF_SLIDER_UP, onNotifyScrubberEvent);
// Add an event listener for MutableVolume click events
mutableVolume.addEventListener("click", onClickMute);
// Add event listeners for MutableVolume slider events
mutableVolume.addEventListener(s7sdk.event.SliderEvent.NOTF_SLIDER_DOWN, onVolumeSlide);
mutableVolume.addEventListener(s7sdk.event.SliderEvent.NOTF_SLIDER_MOVE, onVolumeSlide);
mutableVolume.addEventListener(s7sdk.event.SliderEvent.NOTF_SLIDER_UP, onVolumeSlide);
// Add an event listener for FullScreenButton click events
fullScreenButton.addEventListener("click", onClickFullScreen);
}
// Define an event handler function to resize the VideoPlayer when the container changes size
function onContainerResize(event) {
videoPlayer.resize(event.s7event.w, event.s7event.h );
}
// Define an event handler function to resize the VideoPlayer and update the fullscreen button
// when the container enters/exits fullscreen display mode
function onContainerFullScreen(event) {
videoPlayer.resize(event.s7event.w, event.s7event.h );
fullScreenButton.setSelected(container.isFullScreen());
}
// Define an event handler function to update the button if the video starts/stops on for a reason
// other than button click (for example, reaching the end of the video).
function onNotifyVideoState(event){
playPauseButton.setSelected(event.s7event.state.hasCapability(s7sdk.VideoCapabilityState.PLAY));
}
// Define an event handler function to update the VideoScrubber object for VideoPlayer changes
function onNotifyVideoTime(event){
if(event.s7event.type == s7sdk.event.VideoEvent.NOTF_CURRENT_TIME){
videoScrubber.setPlayedTime(event.s7event.data);
videoTime.setPlayedTime(event.s7event.data);
}else if(event.s7event.type == s7sdk.event.VideoEvent.NOTF_DURATION){
videoScrubber.setDuration(event.s7event.data);
videoTime.setDuration(event.s7event.data);
}else if(event.s7event.type == s7sdk.event.VideoEvent.NOTF_LOAD_PROGRESS){
videoScrubber.setLoadedPosition(event.s7event.data);
}
}
// Define an event handler function to pause/resume the VideoPlayer when the PlayPauseButton is clicked
function onPlayPauseButtonClick(event){
if(playPauseButton.isSelected()){
videoPlayer.pause();
}else{
videoPlayer.play();
}
}
// Define an event handler function to update the VideoPlayer object for VideoScrubber slider interactions
function onNotifyScrubberEvent(event){
videoPlayer.seek(event.s7event.position * videoPlayer.getDuration());
}
// Define an event handler function to update the VideoPlayer mute state when the mute button is clicked
function onClickMute(event){
if(mutableVolume.isSelected()){
videoPlayer.mute();
}else{
videoPlayer.unmute();
}
}
// Define an event handler function to update the VideoPlayer volume when the volume slider changes
function onVolumeSlide(event) {
videoPlayer.setVolume(event.s7event.position);
}
// Define an event handler function to toggle the Container's fullscreen state when the button is clicked
function onClickFullScreen(event){
if(container.isFullScreen()){
container.cancelFullScreen();
}else{
container.requestFullScreen();
}
}
// The ParameterManager will dispatch SDK_READY when all modifiers have been processed
// and it is safe to initialize the viewer
params.addEventListener(s7sdk.Event.SDK_READY, initViewer, false);
// Now it is safe to process the modifiers, the callbacks have been defined
// this will trigger the SDK_READY event
params.init();
</script>
</body>
</html>
Default styles for ControlBar:
.s7controlbar {
background-color:#a6a6a6;
position:relative;
width:420px;
height:30px;
-webkit-touch-callout:none;
-webkit-user-select:none;
-moz-user-select:none;
-ms-user-select:none;
user-select:none;
-webkit-tap-highlight-color:rgba(0,0,0,0);
text-align:left;
}
.s7controlbar .s7innercontrolbarcontainer {
position:static;
white-space:nowrap;
height:100%;
}
.s7controlbar .s7scrollbuttoncontainer {
display:none;
position:absolute;
width:25px;
height:100%;
right:0px;
background-color:inherit;
}
.s7controlbar .s7scrollleftrightbutton {
position:absolute;
width:25px;
height:25px;
}
- Parameters:
- {String|Container} container
- The reference to
Container
instance or the ID of the parent DOM element to which the component is added as a child - {s7sdk.ParameterManager} settings
- A parameter manager instance that represents the desired configuration.
- {String} compId
- An optional parameter that specifies the ID of the component DOM element.
ControlBar
. The component must not be a child of ControlBar.
When component is attached to a ControlBar, the ControlBar will change component's opacity during fade in/out animation.
- Parameters:
- {SDK component or DOM object} component
- attached object.
ControlBar
, the control bar will listen to mouse/touch events
within the area of that view and show/hide control bar appropriately using animation configured with transition
modifier.
Once a mouse/touch event is registered in view
, control bar shows.
The auto-hide always happens when mouse leaves the ControlBar
area and the area of all view
objects registered with it.
Also, depending on the value of keepVisible
argument, the auto-hide may trigger if mouse does not move for certain time
(see transition
modifier) but stays within the area of this particular view
object.
- Parameters:
- {SDK component or DOM object} view
- the view to track mouse/touch events on.
- {Boolean} keepVisible
- if
true
, theControlBar
will not auto-hide while the mouse is idle but stays within the area of thisview
object. Otherwise, theControlBar
will auto-hide while the mouse is idle but is within the area of thisview
object.
attach()
method from the ControlBar
.
- Parameters:
- {SDK component or DOM object} component
- detached object.
attachView()
method from the ControlBar
.
attachView()
method from the ControlBar
.
- Parameters:
- {SDK component or DOM object} view
- detached object.
- Returns:
- {s7sdk.common.ControlBar} The reference to the core component the caller is a proxy for.
- Returns:
- {Number} the inner height of the component.
- Returns:
- {Number} the inner width of the component.
- Parameters:
- {Number} w
- Width in pixels.
- {Number} h
- Height in pixels.
- Parameters:
- {String} classname
- The CSS classname to use for this style. i.e. .s7controlbar
- {String} property
- The CSS property that is being set. i.e. background-color
- {String} value
- The CSS property value being set. i.e. #FF0000
- Parameters:
- {Object} modObj
- A simple JSON object with name:value pairs of valid modifiers for a particular component