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Merge pull request #1564 from edx/anton/fix-video-bugs

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Video player: fix start-end time bugs.
This commit is contained in:
polesye
2013-11-04 02:01:59 -08:00
parent 64758673b5 af71c780fe
commit adddd75f03
9 changed files with 197 additions and 182 deletions
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53
common/lib/xmodule/xmodule/js/src/video/01_initialize.js
View File

@@ -60,23 +60,23 @@ function (VideoPlayer) {
* methods, modules) of the Video player.
*/
function _makeFunctionsPublic(state) {
state.setSpeed = _.bind(setSpeed, state);
state.youtubeId = _.bind(youtubeId, state);
state.getDuration = _.bind(getDuration, state);
state.trigger = _.bind(trigger, state);
state.stopBuffering = _.bind(stopBuffering, state);
var methodsDict = {
bindTo: bindTo,
checkStartEndTimes: checkStartEndTimes,
fetchMetadata: fetchMetadata,
getDuration: getDuration,
getVideoMetadata: getVideoMetadata,
initialize: initialize,
parseSpeed: parseSpeed,
parseVideoSources: parseVideoSources,
parseYoutubeStreams: parseYoutubeStreams,
setSpeed: setSpeed,
stopBuffering: stopBuffering,
trigger: trigger,
youtubeId: youtubeId
};
// Old private functions. Now also public so that can be
// tested by Jasmine.
state.initialize = _.bind(initialize, state);
state.parseSpeed = _.bind(parseSpeed, state);
state.fetchMetadata = _.bind(fetchMetadata, state);
state.parseYoutubeStreams = _.bind(parseYoutubeStreams, state);
state.parseVideoSources = _.bind(parseVideoSources, state);
state.getVideoMetadata = _.bind(getVideoMetadata, state);
state.checkStartEndTimes = _.bind(checkStartEndTimes, state);
bindTo(methodsDict, state, state);
}
// function _renderElements(state)
@@ -97,7 +97,7 @@ function (VideoPlayer) {
if(state.videoType === 'youtube') {
YT.ready(function() {
VideoPlayer(state);
})
});
} else {
VideoPlayer(state);
}
@@ -233,6 +233,25 @@ function (VideoPlayer) {
// them available and sets up their context is makeFunctionsPublic().
// ***************************************************************
// function bindTo(methodsDict, obj, context, rewrite)
// Creates a new function with specific context and assigns it to the provided
// object.
function bindTo(methodsDict, obj, context, rewrite) {
$.each(methodsDict, function(name, method) {
if (_.isFunction(method)) {
if (_.isUndefined(rewrite)) {
rewrite = true;
}
if (_.isUndefined(obj[name]) || rewrite) {
obj[name] = _.bind(method, context);
}
}
});
}
// function initialize(element)
// The function set initial configuration and preparation.

13
common/lib/xmodule/xmodule/js/src/video/025_focus_grabber.js
View File

@@ -44,14 +44,13 @@ function () {
// Private functions.
function _makeFunctionsPublic(state) {
state.focusGrabber.enableFocusGrabber = _.bind(
enableFocusGrabber, state
);
state.focusGrabber.disableFocusGrabber = _.bind(
disableFocusGrabber, state
);
var methodsDict = {
disableFocusGrabber: disableFocusGrabber,
enableFocusGrabber: enableFocusGrabber,
onFocus: onFocus
};
state.focusGrabber.onFocus = _.bind(onFocus, state);
state.bindTo(methodsDict, state.focusGrabber, state);
}
function _renderElements(state) {

101
common/lib/xmodule/xmodule/js/src/video/03_video_player.js
View File

@@ -24,33 +24,29 @@ function (HTML5Video, Resizer) {
// Functions which will be accessible via 'state' object. When called,
// these functions will get the 'state' object as a context.
function _makeFunctionsPublic(state) {
state.videoPlayer.pause = _.bind(pause, state);
state.videoPlayer.play = _.bind(play, state);
state.videoPlayer.update = _.bind(update, state);
state.videoPlayer.onSpeedChange = _.bind(onSpeedChange, state);
state.videoPlayer.onCaptionSeek = _.bind(onSeek, state);
state.videoPlayer.onSlideSeek = _.bind(onSeek, state);
state.videoPlayer.onEnded = _.bind(onEnded, state);
state.videoPlayer.onPause = _.bind(onPause, state);
state.videoPlayer.onPlay = _.bind(onPlay, state);
var methodsDict = {
duration: duration,
handlePlaybackQualityChange: handlePlaybackQualityChange,
isPlaying: isPlaying,
log: log,
onCaptionSeek: onSeek,
onEnded: onEnded,
onPause: onPause,
onPlay: onPlay,
onPlaybackQualityChange: onPlaybackQualityChange,
onReady: onReady,
onSlideSeek: onSeek,
onSpeedChange: onSpeedChange,
onStateChange: onStateChange,
onUnstarted: onUnstarted,
onVolumeChange: onVolumeChange,
pause: pause,
play: play,
update: update,
updatePlayTime: updatePlayTime
};
state.videoPlayer.onUnstarted = _.bind(onUnstarted, state);
state.videoPlayer.handlePlaybackQualityChange = _.bind(
handlePlaybackQualityChange, state
);
state.videoPlayer.onPlaybackQualityChange = _.bind(
onPlaybackQualityChange, state
);
state.videoPlayer.onStateChange = _.bind(onStateChange, state);
state.videoPlayer.onReady = _.bind(onReady, state);
state.videoPlayer.updatePlayTime = _.bind(updatePlayTime, state);
state.videoPlayer.isPlaying = _.bind(isPlaying, state);
state.videoPlayer.log = _.bind(log, state);
state.videoPlayer.duration = _.bind(duration, state);
state.videoPlayer.onVolumeChange = _.bind(onVolumeChange, state);
state.bindTo(methodsDict, state.videoPlayer, state);
}
// function _initialize(state)
@@ -67,7 +63,9 @@ function (HTML5Video, Resizer) {
// metadata is loaded, which normally happens just after the video
// starts playing. Just after that configurations can be applied.
state.videoPlayer.ready = _.once(function () {
state.videoPlayer.onSpeedChange(state.speed);
if (state.currentPlayerMode !== 'flash') {
state.videoPlayer.onSpeedChange(state.speed);
}
});
if (state.videoType === 'youtube') {
@@ -224,19 +222,23 @@ function (HTML5Video, Resizer) {
}
function onSpeedChange(newSpeed, updateCookie) {
var time = this.videoPlayer.currentTime,
methodName, youtubeId;
if (this.currentPlayerMode === 'flash') {
this.videoPlayer.currentTime = Time.convert(
this.videoPlayer.currentTime,
time,
parseFloat(this.speed),
newSpeed
);
}
newSpeed = parseFloat(newSpeed).toFixed(2).replace(/\.00$/, '.0');
this.videoPlayer.log(
'speed_change_video',
{
current_time: this.videoPlayer.currentTime,
current_time: time,
old_speed: this.speed,
new_speed: newSpeed
}
@@ -259,17 +261,15 @@ function (HTML5Video, Resizer) {
// speed is 1.0. The second case is necessary to avoid the bug
// where in Firefox speed switching to 1.0 in HTML5 player mode is
// handled incorrectly by YouTube API.
methodName = 'cueVideoById';
youtubeId = this.youtubeId();
if (this.videoPlayer.isPlaying()) {
this.videoPlayer.player.loadVideoById(
this.youtubeId(), this.videoPlayer.currentTime
);
} else {
this.videoPlayer.player.cueVideoById(
this.youtubeId(), this.videoPlayer.currentTime
);
methodName = 'loadVideoById';
}
this.videoPlayer.updatePlayTime(this.videoPlayer.currentTime);
this.videoPlayer.player[methodName](youtubeId, time);
this.videoPlayer.updatePlayTime(time);
}
}
@@ -318,11 +318,18 @@ function (HTML5Video, Resizer) {
}
function onEnded() {
var time = this.videoPlayer.duration();
this.trigger('videoControl.pause', null);
if (this.config.show_captions) {
this.trigger('videoCaption.pause', null);
}
// Sometimes `onEnded` events fires when `currentTime` not equal
// `duration`. In this case, slider doesn't reach the end point of
// timeline.
this.videoPlayer.updatePlayTime(time);
}
function onPause() {
@@ -355,6 +362,8 @@ function (HTML5Video, Resizer) {
this.videoPlayer.updateInterval = setInterval(
this.videoPlayer.update, 200
);
this.videoPlayer.update();
}
this.trigger('videoControl.play', null);
@@ -509,9 +518,8 @@ function (HTML5Video, Resizer) {
}
function updatePlayTime(time) {
var duration, durationChange;
duration = this.videoPlayer.duration();
var duration = this.videoPlayer.duration(),
durationChange;
if (
duration > 0 &&
@@ -563,14 +571,7 @@ function (HTML5Video, Resizer) {
//
// We seek only if start time differs from zero.
if (durationChange === false && this.videoPlayer.startTime > 0) {
if (this.videoType === 'html5') {
this.videoPlayer.player.seekTo(this.videoPlayer.startTime);
} else {
this.videoPlayer.player.loadVideoById({
videoId: this.youtubeId(),
startSeconds: this.videoPlayer.startTime
});
}
this.videoPlayer.player.seekTo(this.videoPlayer.startTime);
}
// Rebuild the slider start-end range (if it doesn't take up the
@@ -639,7 +640,7 @@ function (HTML5Video, Resizer) {
dur = this.getDuration();
}
return dur;
return Math.floor(dur);
}
function log(eventName, data) {
@@ -661,7 +662,7 @@ function (HTML5Video, Resizer) {
if (this.videoType === 'youtube') {
logInfo.code = this.youtubeId();
} else if (this.videoType === 'html5') {
logInfo.code = 'html5';
logInfo.code = 'html5';
}
Logger.log(eventName, logInfo);

20
common/lib/xmodule/xmodule/js/src/video/04_video_control.js
View File

@@ -24,14 +24,18 @@ function () {
// Functions which will be accessible via 'state' object. When called, these functions will
// get the 'state' object as a context.
function _makeFunctionsPublic(state) {
state.videoControl.showControls = _.bind(showControls,state);
state.videoControl.hideControls = _.bind(hideControls,state);
state.videoControl.play = _.bind(play,state);
state.videoControl.pause = _.bind(pause,state);
state.videoControl.togglePlayback = _.bind(togglePlayback,state);
state.videoControl.toggleFullScreen = _.bind(toggleFullScreen,state);
state.videoControl.exitFullScreen = _.bind(exitFullScreen,state);
state.videoControl.updateVcrVidTime = _.bind(updateVcrVidTime,state);
var methodsDict = {
exitFullScreen: exitFullScreen,
hideControls: hideControls,
pause: pause,
play: play,
showControls: showControls,
toggleFullScreen: toggleFullScreen,
togglePlayback: togglePlayback,
updateVcrVidTime: updateVcrVidTime
};
state.bindTo(methodsDict, state.videoControl, state);
}
// function _renderElements(state)

10
common/lib/xmodule/xmodule/js/src/video/05_video_quality_control.js
View File

@@ -29,8 +29,12 @@ function () {
// Functions which will be accessible via 'state' object. When called, these functions will
// get the 'state' object as a context.
function _makeFunctionsPublic(state) {
state.videoQualityControl.onQualityChange = _.bind(onQualityChange, state);
state.videoQualityControl.toggleQuality = _.bind(toggleQuality, state);
var methodsDict = {
onQualityChange: onQualityChange,
toggleQuality: toggleQuality
};
state.bindTo(methodsDict, state.videoQualityControl, state);
}
// function _renderElements(state)
@@ -76,7 +80,7 @@ function () {
.text(controlStateStr);
}
}
}
// This function change quality of video.
// Right now we haven't ability to choose quality of HD video,

29
common/lib/xmodule/xmodule/js/src/video/06_video_progress_slider.js
View File

@@ -31,18 +31,15 @@ function () {
// Functions which will be accessible via 'state' object. When called,
// these functions will get the 'state' object as a context.
function _makeFunctionsPublic(state) {
state.videoProgressSlider.onSlide = _.bind(onSlide, state);
state.videoProgressSlider.onStop = _.bind(onStop, state);
state.videoProgressSlider.updatePlayTime = _.bind(
updatePlayTime, state
);
var methodsDict = {
buildSlider: buildSlider,
onSlide: onSlide,
onStop: onStop,
updatePlayTime: updatePlayTime,
updateStartEndTimeRegion: updateStartEndTimeRegion
};
//Added for tests -- JM
state.videoProgressSlider.buildSlider = _.bind(buildSlider, state);
state.videoProgressSlider.updateStartEndTimeRegion = _.bind(
updateStartEndTimeRegion, state
);
state.bindTo(methodsDict, state.videoProgressSlider, state);
}
// function _renderElements(state)
@@ -99,12 +96,14 @@ function () {
}
function updateStartEndTimeRegion(params) {
var left, width, start, end, step;
var left, width, start, end, step, duration;
// We must have a duration in order to determine the area of range.
// It also must be non-zero.
if (!params.duration) {
return;
} else {
duration = params.duration;
}
// If the range spans the entire length of video, we don't do anything.
@@ -117,7 +116,7 @@ function () {
// If end is set to null, then we set it to the end of the video. We
// know that start is not a the beginning, therefore we must build a
// range.
end = this.videoPlayer.endTime || params.duration;
end = this.videoPlayer.endTime || duration;
// Because JavaScript has weird rounding rules when a series of
// mathematical operations are performed in a single statement, we will
@@ -125,11 +124,9 @@ function () {
//
// This will ensure that visually, the start-end range aligns nicely
// with actual starting and ending point of the video.
step = 100.0 / params.duration;
step = 100.0 / duration;
left = start * step;
width = end * step - left;
left = left.toFixed(1);
width = width.toFixed(1);
if (!this.videoProgressSlider.sliderRange) {
this.videoProgressSlider.sliderRange = $('<div />', {

38
common/lib/xmodule/xmodule/js/src/video/07_video_volume_control.js
View File

@@ -24,8 +24,12 @@ function () {
// Functions which will be accessible via 'state' object. When called, these functions will
// get the 'state' object as a context.
function _makeFunctionsPublic(state) {
state.videoVolumeControl.onChange = _.bind(onChange, state);
state.videoVolumeControl.toggleMute = _.bind(toggleMute, state);
var methodsDict = {
onChange: onChange,
toggleMute: toggleMute
};
state.bindTo(methodsDict, state.videoVolumeControl, state);
}
// function _renderElements(state)
@@ -67,14 +71,11 @@ function () {
// Let screen readers know that:
// This anchor behaves as a button named 'Volume'.
var buttonStr = gettext(
state.videoVolumeControl.currentVolume === 0
? 'Volume muted'
: 'Volume'
);
var currentVolume = state.videoVolumeControl.currentVolume,
buttonStr = (currentVolume === 0) ? 'Volume muted' : 'Volume';
// We add the aria-label attribute because the title attribute cannot be
// read.
state.videoVolumeControl.buttonEl.attr('aria-label', buttonStr);
// read.
state.videoVolumeControl.buttonEl.attr('aria-label', gettext(buttonStr));
// Let screen readers know that this anchor, representing the slider
// handle, behaves as a slider named 'volume'.
@@ -154,7 +155,7 @@ function () {
// We store the fact that previous element that lost focus was
// the volume clontrol.
state.volumeBlur = true;
// The following field is used in video_speed_control to track
// The following field is used in video_speed_control to track
// the element that had the focus before it.
state.previousFocus = 'volume';
});
@@ -167,8 +168,11 @@ function () {
// ***************************************************************
function onChange(event, ui) {
this.videoVolumeControl.currentVolume = ui.value;
this.videoVolumeControl.el.toggleClass('muted', this.videoVolumeControl.currentVolume === 0);
var currentVolume = ui.value,
ariaLabelText = (currentVolume === 0) ? 'Volume muted' : 'Volume';
this.videoVolumeControl.currentVolume = currentVolume;
this.videoVolumeControl.el.toggleClass('muted', currentVolume === 0);
$.cookie('video_player_volume_level', ui.value, {
expires: 3650,
@@ -176,17 +180,15 @@ function () {
});
this.trigger('videoPlayer.onVolumeChange', ui.value);
// ARIA
this.videoVolumeControl.volumeSliderHandleEl.attr({
'aria-valuenow': ui.value,
'aria-valuetext': getVolumeDescription(ui.value)
});
this.videoVolumeControl.buttonEl.attr(
'aria-label', this.videoVolumeControl.currentVolume === 0
? gettext('Volume muted')
: gettext('Volume')
'aria-label', gettext(ariaLabelText)
);
}
@@ -227,7 +229,7 @@ function () {
} else if (vol <= 99) {
return 'very loud';
}
return 'maximum';
}

36
common/lib/xmodule/xmodule/js/src/video/08_video_speed_control.js
View File

@@ -44,11 +44,13 @@ function () {
// Functions which will be accessible via 'state' object. When called,
// these functions will get the 'state' object as a context.
function _makeFunctionsPublic(state) {
state.videoSpeedControl.changeVideoSpeed = _.bind(
changeVideoSpeed, state
);
state.videoSpeedControl.setSpeed = _.bind(setSpeed, state);
state.videoSpeedControl.reRender = _.bind(reRender, state);
var methodsDict = {
changeVideoSpeed: changeVideoSpeed,
reRender: reRender,
setSpeed: setSpeed
};
state.bindTo(methodsDict, state.videoSpeedControl, state);
}
// function _renderElements(state)
@@ -164,7 +166,7 @@ function () {
// 1. Play control
// 2. Speed control
// 3. Fastest speed called firstSpeed
// 4. Intermediary speed called otherSpeed
// 4. Intermediary speed called otherSpeed
// 5. Slowest speed called lastSpeed
// 6. Volume control
// This field will keep track of where the focus is coming from.
@@ -176,8 +178,8 @@ function () {
// or closes it.
state.videoSpeedControl.el.children('a')
.on('focus', function () {
// If the focus is coming from the first speed entry
// (tabbing backwards) or last speed entry (tabbing forward)
// If the focus is coming from the first speed entry
// (tabbing backwards) or last speed entry (tabbing forward)
// hide the speed entries dialog.
if (state.previousFocus === 'firstSpeed' ||
state.previousFocus === 'lastSpeed') {
@@ -187,7 +189,7 @@ function () {
.on('blur', function () {
// When the focus leaves this element, the speed entries
// dialog will be shown.
// If we are tabbing forward (previous focus is play
// control), we open the dialog and set focus on the first
// speed entry.
@@ -198,8 +200,8 @@ function () {
.focus();
}
// If we are tabbing backwards (previous focus is volume
// control), we open the dialog and set focus on the
// If we are tabbing backwards (previous focus is volume
// control), we open the dialog and set focus on the
// last speed entry.
if (state.previousFocus === 'volume') {
state.videoSpeedControl.el.addClass('open');
@@ -207,7 +209,7 @@ function () {
.find('a.speed_link:last')
.focus();
}
});
// ******************************
@@ -223,13 +225,13 @@ function () {
if (state.previousFocus === 'otherSpeed') {
state.previousFocus = 'firstSpeed';
state.videoSpeedControl.el.children('a').focus();
}
}
});
// Track the focus on intermediary speeds.
speedLinks
.filter(function (index) {
return index === 1 || index === 2
return index === 1 || index === 2;
})
.on('blur', function () {
state.previousFocus = 'otherSpeed';
@@ -242,9 +244,9 @@ function () {
if (state.previousFocus === 'otherSpeed') {
state.previousFocus = 'lastSpeed';
state.videoSpeedControl.el.children('a').focus();
}
}
});
}
}
@@ -283,7 +285,7 @@ function () {
this.videoSpeedControl.currentSpeed
);
}
// When a speed entry has been selected, we want the speed control to
// When a speed entry has been selected, we want the speed control to
// regain focus.
parentEl.parent().siblings('a').focus();
}

79
common/lib/xmodule/xmodule/js/src/video/09_video_caption.js
View File

@@ -37,53 +37,40 @@ function () {
// Functions which will be accessible via 'state' object. When called,
// these functions will get the 'state' object as a context.
function _makeFunctionsPublic(state) {
state.videoCaption.autoShowCaptions = _.bind(
autoShowCaptions, state
);
state.videoCaption.autoHideCaptions = _.bind(
autoHideCaptions, state
);
state.videoCaption.resize = _.bind(resize, state);
state.videoCaption.toggle = _.bind(toggle, state);
state.videoCaption.onMouseEnter = _.bind(onMouseEnter, state);
state.videoCaption.onMouseLeave = _.bind(onMouseLeave, state);
state.videoCaption.onMovement = _.bind(onMovement, state);
state.videoCaption.renderCaption = _.bind(renderCaption, state);
state.videoCaption.captionHeight = _.bind(captionHeight, state);
state.videoCaption.topSpacingHeight = _.bind(
topSpacingHeight, state
);
state.videoCaption.bottomSpacingHeight = _.bind(
bottomSpacingHeight, state
);
state.videoCaption.scrollCaption = _.bind(scrollCaption, state);
state.videoCaption.search = _.bind(search, state);
state.videoCaption.play = _.bind(play, state);
state.videoCaption.pause = _.bind(pause, state);
state.videoCaption.seekPlayer = _.bind(seekPlayer, state);
state.videoCaption.hideCaptions = _.bind(hideCaptions, state);
state.videoCaption.calculateOffset = _.bind(
calculateOffset, state
);
state.videoCaption.updatePlayTime = _.bind(updatePlayTime, state);
state.videoCaption.setSubtitlesHeight = _.bind(
setSubtitlesHeight, state
);
var methodsDict = {
autoHideCaptions: autoHideCaptions,
autoShowCaptions: autoShowCaptions,
bindHandlers: bindHandlers,
bottomSpacingHeight: bottomSpacingHeight,
calculateOffset: calculateOffset,
captionBlur: captionBlur,
captionClick: captionClick,
captionFocus: captionFocus,
captionHeight: captionHeight,
captionKeyDown: captionKeyDown,
captionMouseDown: captionMouseDown,
captionMouseOverOut: captionMouseOverOut,
captionURL: captionURL,
fetchCaption: fetchCaption,
hideCaptions: hideCaptions,
onMouseEnter: onMouseEnter,
onMouseLeave: onMouseLeave,
onMovement: onMovement,
pause: pause,
play: play,
renderCaption: renderCaption,
renderElements: renderElements,
resize: resize,
scrollCaption: scrollCaption,
search: search,
seekPlayer: seekPlayer,
setSubtitlesHeight: setSubtitlesHeight,
toggle: toggle,
topSpacingHeight: topSpacingHeight,
updatePlayTime: updatePlayTime
};
state.videoCaption.renderElements = _.bind(renderElements, state);
state.videoCaption.bindHandlers = _.bind(bindHandlers, state);
state.videoCaption.fetchCaption = _.bind(fetchCaption, state);
state.videoCaption.captionURL = _.bind(captionURL, state);
state.videoCaption.captionMouseOverOut = _.bind(
captionMouseOverOut, state
);
state.videoCaption.captionMouseDown = _.bind(
captionMouseDown, state
);
state.videoCaption.captionClick = _.bind(captionClick, state);
state.videoCaption.captionFocus = _.bind(captionFocus, state);
state.videoCaption.captionBlur = _.bind(captionBlur, state);
state.videoCaption.captionKeyDown = _.bind(captionKeyDown, state);
state.bindTo(methodsDict, state.videoCaption, state);
}
// ***************************************************************