不能通过IE7中的Javascript调用JQuery函数

时间:2012-10-25 05:07:24

标签: javascript jquery internet-explorer html5-video

它适用于所有主流浏览器,但不适用于IE7。

Java脚本代码是:

$(function() {
var $hdVid = jQuery.noConflict();
$hdVid(function() {
    $hdVid('.hd-flv-player').hdVideo();
});
});

JQuery是:

(function($) {

// plugin definition
$.fn.hdVideo = function(options) {
    // build main options before element iteration
    var defaults = {
        theme: 'simpledark',
        childtheme: ''
    };
    var options = $.extend(defaults, options);
    // iterate and reformat each matched element
    return this.each(function() {
        var $hdVideo = $(this);

        $hdVideo.removeAttr('controls');
        //create html structure
        //main wrapper

        var $video_wrap=$('<div id="hd-player"></div>');
        var $video_hd_html_player = $('<div id="hd_html_player"></div>').addClass('hd-video-player').addClass(options.theme).addClass(options.childtheme);
        //controls wraper
        var $video_controls = $('<div class="hd-video-main-control"></div><div class="hd-video-controls"><div class="hd-video-seek-container"><div class="hd-video-seek"></div></div><div class="hd-video-buffer-container"><div class="hd-video-buffer"></div></div><div class="hd-video-options cf"><a class="hd-video-play" title="Play/Pause"></a><div class="hd-video-timer"><span class="hd-video-timer-curr">00:00</span><span class="hd-video-sep">&nbsp;/&nbsp;</span><span class="hd-video-timer-tot-time">00:00</span></div><div class="hd-full-screen"><a class="hd-full-screen-button" title="Normal/FullScreen"></a></div><div class="hd-volume-box"><div class="hd-volume-slider-container"><div class="hd-volume-slider"></div></div><a class="hd-volume-button" title="Mute/Unmute"></a><div class="hd-volume-value-slider"></div></div><div class="hd-hd-swipe"><a class="hd-hd-swipe-button" title="High Definition / Low Definition"></a></div><div class="hd-flv-html5-switch"><a title="Switch to Flash"></a></div></div></div>');
        $video_wrap.append($video_hd_html_player);
        $hdVideo.wrap($video_wrap);
        $hdVideo.after($video_controls);
        var full_screen = 0;
        //get new elements
        var $video_container = $hdVideo.parent('.hd-video-player');
        var $video_main_control = $('.hd-video-main-control', $video_container);
        $video_controls = $('.hd-video-controls', $video_container);
        var $hd_play_btn = $('.hd-video-play', $video_container);
        var $hd_video_seek = $('.hd-video-seek', $video_container);
        var $hd_video_buffer = $('.hd-video-buffer', $video_container);
        var $hd_video_timer_curr = $('.hd-video-timer-curr', $video_container);
        var $hd_video_timer_tot_time = $('.hd-video-timer-tot-time', $video_container);
        var $hd_volume = $('.hd-volume-slider', $video_container);
        var $hd_volume_value = $('.hd-volume-value-slider', $video_container);
        var $hd_volume_btn = $('.hd-volume-button', $video_container);
        var $hd_hd_swipe_btn = $('.hd-hd-swipe-button', $video_container);
        var $hd_full_screen_btn = $('.hd-full-screen-button', $video_container);
        var $player_change_btn = $('.hd-flv-html5-switch', $video_container);
        $video_controls.hide(); // keep the controls hidden
        var firstTime=1;

        /* Video Elements Fetching */
        var videoAttr = {};
        videoAttr.poster = $("video").attr("poster");
        videoAttr.src = $("source").map(function() {
            return $(this).attr("src");
        });
        videoAttr.quality = $("source").map(function() {
            return $(this).attr("data-quality");
        });
        videoAttr.type = $("source").map(function() {
            return $(this).attr("type");
        });
        videoAttr.codecs = $("source").map(function() {
            return $(this).attr("codecs");
        });

        /* Video Elements Fetching Ends */

        /* Poster image into screen image */

        var $video_bind_pst = $('<img class="hd-vid-poster-img" src="'+videoAttr.poster+'" data-width="544" data-height="306"><div class="hd-video-main-control"></div>');
        //$hdVideo.before($video_bind_pst);

        //var
        //width: 630px !important; height: 354px !important; top: 0px !important; left: 0px !important; max-width: 630px !important;

        /* Poster image into screen image ends*/

        /* Play/Pause */
        var gPlay = function() {

            txt =  navigator.platform ;
            if(txt =='iPhone'|| txt =='Linux armv7l')
            {
                window.location.href = videoAttr.src[0];
            }
            else{
                if($hdVideo.attr('paused') == false) {
                    $hdVideo[0].pause();
                    $video_main_control.removeClass("hd-video-main-control-none");
                }
                else {
                    if(firstTime)
                    {
                        $hdVideo.attr('src', vidStatistics.default_vid_src);
                        firstTime=0;
                    }
                    $hdVideo[0].play();
                    $hdVideo.attr('preload', 'auto');
                    $video_main_control.addClass("hd-video-main-control-none");
                    $hdVideo.addClass("video1-visible");
                }
            }
            return false;
        };

        var hd_autoply =$("video").attr("play_auto");
        if(hd_autoply=="autoplay"){
            $hdVideo[0].play();
            $video_main_control.addClass("hd-video-main-control-none");
            $hd_play_btn.addClass('hd-paused-button');
        }

        $video_main_control.click(gPlay);
        $hd_play_btn.click(gPlay);
        $hdVideo.click(gPlay);
        $hdVideo.bind('play', function() {
            $hd_play_btn.addClass('hd-paused-button');
            return false;
        });
        $hdVideo.bind('pause', function() {
            $hd_play_btn.removeClass('hd-paused-button');
            return false;
        });
        $hdVideo.bind('ended', function() {
            $hd_play_btn.removeClass('hd-paused-button');
            $(".hd-video-main-control").removeClass('hd-video-main-control-none');
            return false;
        });

        var gTimeFormat=function(seconds){
            var m=Math.floor(seconds/60)<10?"0"+Math.floor(seconds/60):Math.floor(seconds/60);
            var s=Math.floor(seconds-(m*60))<10?"0"+Math.floor(seconds-(m*60)):Math.floor(seconds-(m*60));
            return m+":"+s;
        };
        /* Play/Pause */

        /* Progressbar Slider */
        var seeksliding;
        var createSeek = function() {
            if($hdVideo.attr('readyState'))
            {
                $hd_video_timer_tot_time.text(gTimeFormat($hdVideo.attr('duration')));
                var video_duration = $hdVideo.attr('duration');
                $hd_video_seek.slider({
                    value: 0,
                    step: 0.01,
                    orientation: "horizontal",
                    range: "min",
                    max: video_duration,
                    animate: true,
                    slide: function(){
                        seeksliding = true;
                    },
                    stop:function(e,ui){
                        seeksliding = false;
                        $hdVideo.attr("currentTime",ui.value);
                    }
                });
                $video_controls.show();
            }
            else {
                setTimeout(createSeek, 150);
            }
            return false;
        };
        createSeek();

        var seekUpdate = function() {
            var currenttime = $hdVideo.attr('currentTime');
            if(!seeksliding)
            {
                $hd_video_seek.slider('value', currenttime);
                $hd_video_timer_curr.text(gTimeFormat(currenttime));
            }
            return false;
        };
        $hdVideo.bind('timeupdate', seekUpdate);
        /* Progressbar Slider */

        /* Buffer Slider */
        var buffersliding;
        var createBuffer = function() {
            if($hdVideo.attr('readyState'))
            {
                $hd_video_timer_tot_time.text(gTimeFormat($hdVideo.attr('duration')));
                var video_duration = $hdVideo.attr('duration');
                $hd_video_buffer.slider({
                    value: 0,
                    step: 0.01,
                    orientation: "horizontal",
                    range: "min",
                    max: video_duration,
                    animate: true,
                    disabled: true,
                    slide: function(){
                        buffersliding = true;
                    },
                    stop:function(e,ui){
                        buffersliding = false;
                        $hdVideo.attr("buffered",ui.value).end(0);
                    }
                });
                $video_controls.show();
            }
            else {
                setTimeout(createBuffer, 150);
            }
            return false;
        };
        createBuffer();

//              var buffertime = $hdVideo.get(0).buffered.end(0);
            var buffertime = $hdVideo[0].buffered.end(0);
            var currenttime = $hdVideo.attr('currentTime');
            if(!buffersliding)
            {
                if(currenttime>buffertime){
                    $hd_video_buffer.slider('value', currenttime);
                }
                else{
                    $hd_video_buffer.slider('value', buffertime);
                }
            }
            return false;
        };
        $hdVideo.bind('timeupdate', bufferUpdate);
        /* Buffer Slider end*/

        /* Volume Control */
        var video_volume = 1;
        $hd_volume.slider({
            value: 0.4,
            orientation: "horizontal",
            range: "min",
            max: 1,
            step: 0.05,
            animate: true,
            slide:function(e,ui){
                $hdVideo.attr('muted',false);
                video_volume = ui.value;
                $hdVideo.attr('volume',ui.value);
                $hd_volume_btn.removeClass('hd-volume-mute');

                if(ui.value*100 == 0) {
                    $hd_volume_btn.css('background-position', '-244px -126px');
                }
                else if(ui.value*100 <= 15) {
                    $hd_volume_btn.css('background-position', '-244px -96px');
                }
                else if (ui.value*100 <= 45) {
                    $hd_volume_btn.css('background-position', '-244px -66px');
                }
                else if (ui.value*100 <= 85) {
                    $hd_volume_btn.css('background-position', '-244px -36px');
                }
                else {
                    $hd_volume_btn.css('background-position', '-244px -6px');
                }
            }
        });

        var muteVolume = function() {
            if($hdVideo.attr('muted')==true) {
                $hdVideo.attr('muted', false);
                $hd_volume.slider('value', video_volume);
                $hd_volume_btn.removeClass('hd-volume-mute');
            }else{
                $hdVideo.attr('muted', true);
                $hd_volume.slider('value', '0');
                $hd_volume_btn.addClass('hd-volume-mute');
            }
            return false;
        };
        /* Volume Control */
        /* Full Screen */
        var fullScreen = function(){
            if(full_screen == 0){
                full_screen = 1;
                $(".hd-video-player").addClass("fullscreen-video-container");
                $(".hd-video-player video.hd-flv-player").addClass("fullscreen-video");
                $(".hd-video-main-control").addClass("fullscreen-hd-video-main-control");
                $(".hd-video-controls").addClass("fullscreen-control-elements");
            }
            else
            {
                full_screen = 0;
                $(".hd-video-player").removeClass("fullscreen-video-container");
                $(".hd-video-player video.hd-flv-player").removeClass("fullscreen-video");
                $(".hd-video-main-control").removeClass("fullscreen-hd-video-main-control");
                $(".hd-video-controls").removeClass("fullscreen-control-elements");
            }
            return false;
        };
        $('body').keydown(function(e){
            if (e.keyCode == 27 && full_screen == 1) {
                fullScreen();
            }
            console.log(e);
            return false;
        });
        /* Full Screen Ends*/

        /* Default Video Quality */
        var defaultVideoQuality = function(videoAttr){
            var vidStatistics = {};
            vidStatistics.support_vid_count=0;
            var i, isSupp, myVid=document.createElement('video');
            for(i=videoAttr.quality.length-1; i>=0; i--)
            {
                path = videoAttr.src[i];
                var path = videoAttr.src[i],
                ext = path.substr(path.lastIndexOf('.') + 1);
                isSupp = myVid.canPlayType('video/'+ext+';');
                if(isSupp=="maybe" || isSupp=="probably" )
                {
                    vidStatistics.default_vid_qty = videoAttr.quality[i];
                    vidStatistics.default_vid_src = videoAttr.src[i];
                    vidStatistics.support_vid_count++;
                }
            }
            if(vidStatistics.default_vid_qty == "hd")
                $("a.hd-hd-swipe-button").addClass("hd-hd-swipe-button-hd");
            else
                $("a.hd-hd-swipe-button").removeClass("hd-hd-swipe-button-hd");

            return(vidStatistics);
        };
        /* Default Video Quality Ends*/

        /* HD Available Check */
        var hdAvailableCheck = function(videoAttr){
            var k=0, i, isSupp, sdSupport = 0;
            var  myVid=document.createElement('video');
            for(i=0; i<videoAttr.quality.length; i++)
            {
                path = videoAttr.src[i];
                var path = videoAttr.src[i],
                ext = path.substr(path.lastIndexOf('.') + 1);
                isSupp = myVid.canPlayType('video/'+ext+';');
                if(isSupp=="maybe" || isSupp=="probably" )
                {
                    if(videoAttr.quality[i]=="hd")
                        k=1;
                    else
                        sdSupport=1;
                }
            }
            if (k==0)
                $hd_hd_swipe_btn.css('display', 'none');
            if (sdSupport==0)
                $hd_hd_swipe_btn.css('pointer-events', 'none').css('cursor', 'default');
            return false;
        }
        /* HD Available Check Ends*/

        /* Video Quality Check*/
        var videoQualityCheck = function(){
            var i, $currVid, currQuality;
            $currVid = $hdVideo[0].currentSrc;
            for(i=0; i<videoAttr.quality.length; i++) //Get current video quality
                if($currVid == videoAttr.src[i])
                    currQuality=videoAttr.quality[i];
            if(currQuality == "hd")
                $("a.hd-hd-swipe-button").addClass("hd-hd-swipe-button-hd");
            else
                $("a.hd-hd-swipe-button").removeClass("hd-hd-swipe-button-hd");
            return false;
        }
        /* Video Quality Check Ends*/

        /* Quality Swipe */
        var playerstage = 0;
        var hdswipe = function(){
            var currVid, currExt, currVidName, currQuality, i;
            if($hdVideo.attr('paused')==false)
                playerstage=1;
            currVid = $hdVideo[0].currentSrc;
            var currVidTime = $hdVideo.attr('currentTime');
            currExt = currVid.substr(currVid.lastIndexOf('.') + 1);
            for(i=0; i<videoAttr.quality.length; i++) //Get current video quality
                if(currVid == videoAttr.src[i])
                    currQuality=videoAttr.quality[i];
            for(i=0; i<videoAttr.quality.length; i++) //Swipe the Video
            {
                if((currExt==videoAttr.src[i].substr(videoAttr.src[i].lastIndexOf('.') + 1))&&(currQuality!= videoAttr.quality[i]))
                {  
                    $hdVideo.attr('src', videoAttr.src[i]);
                    resumeCurrTime(currVidTime);
                    gPlay();
                    createSeek();
                    createBuffer();
                    playerstage=0;
                    break;
                }
            }
            alert(currQuality);
            if(currQuality == "sd")
                $("a.hd-hd-swipe-button").addClass("hd-hd-swipe-button-hd");
            else
                $("a.hd-hd-swipe-button").removeClass("hd-hd-swipe-button-hd");
            return false;
        }

        var resumeCurrTime = function(currVidTime) {
            if($hdVideo.attr('readyState'))
            {
                $hdVideo[0].currentTime = currVidTime;
            }
            else                            
                setTimeout(function() { resumeCurrTime(currVidTime); }, 150);
            return false;
        }
        /* Quality Swipe Ends */

        /* HTML5 / FLV Swipe */
        var playerChangeIntFn = function(){
            if(full_screen==1)
                fullScreen();
            $hdVideo.attr('preload', 'none');
            $hdVideo.load();
            var trigger = "flash";
            playerChange(trigger);
            return false;
        };
        /* HTML5 / FLV Swipe Ends */
        var vidStatistics = {};
        vidStatistics = defaultVideoQuality(videoAttr);
        hdAvailableCheck(videoAttr);
        $hd_hd_swipe_btn.click(hdswipe); //HD On/Off
        $hd_volume_btn.click(muteVolume); //Mute Volume
        $hd_full_screen_btn.click(fullScreen); //Full Screen On/Off
        $video_container.dblclick(fullScreen); //Full Screen On/Off
        $player_change_btn.click(playerChangeIntFn); //Full Screen On/Off
    });
};
// plugin defaults
$.fn.hdVideo.defaults = {
};
})(jQuery);

HTML是:

<video src="" width="830" height="354" class="hd-flv-player" poster="asserts/poster.png" controls="controls" data-name="demo video" data-uid="57fb2708" preload="none">
        <source src="http://video-js.zencoder.com/oceans-clip.mp4" data-quality="hd"></source>
        <source src="http://static.clipcanvas.com/sample/clipcanvas_14348_offline.mp4" data-quality="sd"></source>
        <source src="http://video.webmfiles.org/big-buck-bunny_trailer.webm" data-quality="hd"></source>
        <source src="asserts/300_VP8.webm" data-quality="sd"></source>
    </video>

Doctype:<!DOCTYPE html>

注意:我知道IE7不支持HTML5视频。但我只想将控制代码绑定。所以我可以使用Flash Fall。。

1 个答案:

答案 0 :(得分:1)

回复你的评论

  

该错误是因为ie7支持&#34; myVid.canPlayType()&#34;在   JQuery的

然后需要修复,不是吗?即使它看起来像第三方库,您仍然可以在其中修复代码,甚至向开发人员提交错误修复。也许他们甚至有一个更高版本的库,你可以检查。

if (myVid.canPlayType)

将检查对象中是否存在该函数。如果它不存在,就像你说它可能不支持HTML视频。然后,您应该退出插件并出现错误,或者在插件中有一个选项,哪个内容应该用作后备。

DEMO