aardio 范例: fsys.media 音频播放控制，显示播放进度

//fsys.media
import win.ui;
import fonts.fontAwesome;
/*DSG{{*/
var winform = win.form(text="fsys.media 音频播放控制，显示播放进度";right=534;bottom=84)
winform.add(
btnPause={cls="plus";text="暂停";left=226;top=34;right=325;bottom=62;align="left";bgcolor=-5197169;disabled=1;font=LOGFONT(h=-16);iconStyle={align="left";font=LOGFONT(h=-16;name='FontAwesome');padding={left=14;top=2}};iconText='\uF04C';notify=1;textPadding={left=35};z=3};
btnPlay={cls="plus";text="播放";left=343;top=34;right=433;bottom=62;align="left";bgcolor=-5197169;font=LOGFONT(h=-16);iconStyle={align="left";font=LOGFONT(h=-16;name='FontAwesome');padding={left=14;top=2}};iconText='\uF04B';notify=1;textPadding={left=35};z=2};
progress={cls="plus";left=15;top=16;right=510;bottom=20;bgcolor=6447459;forecolor=9959653;notify=1;z=1}
)
/*}}*/

import fsys.dlg;
import fsys.media;

var mediaFile;
winform.btnPlay.oncommand = function(id,event){
    if(mediaFile) {
        mediaFile.stop(); 
        winform.progress.hide = true;
    }

    if(!winform.btnPlay.checked){
        return;
    }
    winform.btnPlay.checked = false;

    var path = fsys.dlg.open("*.mp3|*.mp3||");
    if(!path) return;

    mediaFile = fsys.media(path);
    if(mediaFile) {
        mediaFile.play(); 

        winform.btnPlay.checked = true;
        winform.btnPause.disabled = false;

        winform.progress.setProgressRange(0,mediaFile.length());
        winform.progress.progressPos = 0; 
        winform.progress.hide = false;
    }   
}

winform.btnPause.oncommand = function(id,event){
    if( mediaFile ){
        if(mediaFile.isPlaying()){
            mediaFile.pause();
        }
        else {
            mediaFile.resume();
        }
    } 
}

winform.setInterval( 
    function(){ 
        if( winform.btnPlay.checked && mediaFile){ 
            if( mediaFile.isPlaying()){
                winform.progress.progressPos = mediaFile.position();
            } 
            elseif( mediaFile.isStopped() ) {
                winform.progress.hide = true;
                winform.btnPlay.checked = false; 
                winform.btnPause.disabled = true;
            }
        } 
    },500
)

winform.btnPause.skin({
    background={
        default=0x668FB2B0;
        disabled=0xFFCCCCCC;
        hover=0xFF928BB3
    };
    color={
        default=0xFF000000;
        disabled=0xFF6D6D6D
    };
    checked = {
        iconText = '\uF04B';
        text = "继续";
        background={
            default=0x668FB2B0;
            disabled=0xFFCCCCCC;
            hover=0xFF928BB3
        };
        color={
            default=0xFF000000;
            disabled=0xFF6D6D6D
        };
    }
})

winform.btnPlay.skin({
    background={
        default=0x668FB2B0;
        disabled=0xFFCCCCCC;
        hover=0xFF928BB3
    };
    color={
        default=0xFF000000;
        disabled=0xFF6D6D6D
    };
    checked = {
        iconText = '\uF04D';
        text = "停止";
        background={
            default=0x668FB2B0;
            disabled=0xFFCCCCCC;
            hover=0xFF928BB3
        };
        color={
            default=0xFF000000;
            disabled=0xFF6D6D6D
        };
    }
})

winform.show();
win.loopMessage();

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