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  1. #1
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    Default Unanswered: Same ID Component Bug

    Unanswered: Same ID Component Bug


    I think what I found seems a PR4 bug but would like to confirm if it persist at your side too.

    I created a panel under a view like this.

    Code:
    var video = Ext.create('Ext.Panel', {
        id : 'jwPlayerContainer',
        html : '<object type="application/x-shockwave-flash" id="jwplayer" name="jwplayer" data="jwplayer/player.swf" width="480" height="270" style="width: 1286px !important; height: 230px !important; "><param name="allowfullscreen" value="true"><param name="allowscriptaccess" value="always"><param name="flashvars" value="file=' + flashvars.file + '&amp;streamer=' + flashvars.streamer + '"></object>'
    });
    I remove all components and then add this to the view.
    Code:
    this.removeAll(true, true);
    this.add(video);
    My job is to resize the <object> based on its container so I use.

    Code:
    this.sizeMonitor = new Ext.util.SizeMonitor({
        element : video.getEl(),
        callback : this.onSizeChange,
        scope : this
    });
    My onResizeChange callback.

    Code:
    onSizeChange : function() {
        var jwPlayer = Ext.get('jwplayer');
        var jwPlayerContainer = Ext.get('jwPlayerContainer');
        
        if(jwPlayer && jwPlayerContainer) {
            console.log(jwPlayer.dom);
            console.log(jwPlayerContainer.dom);
            
            jwPlayer.setWidth(jwPlayerContainer.getWidth());
            jwPlayer.setHeight(jwPlayerContainer.getHeight());
        }
    }
    When user presses back button and comes again to that view the same panel with object element is added and new sizeMonitor is set. But this time the added panel and object element which was destroyed is returned and not the new one.

    Is that a known bug?

  2. #2
    Sencha - Senior Forum Manager mitchellsimoens's Avatar
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    Default


    When you do this.add... are you recreating the panel?
    Mitchell Simoens @SenchaMitch
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  3. #3
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    Default


    Here's the function that is being called from outside the view. This function is called from other views.

    Code:
    addVideoPlayer : function(url, thumbnail) {    //split link into two parts
        var urlSplitted = url.match(/^(.*)\/([^\/]+)$/);
        
        var flashvars = {
            file : urlSplitted[2],
            streamer : urlSplitted[1]
        };
        flashvars = {
            file : 'live',
            streamer : 'rtmp://fms-live.xstream.dk/bb_live'
        };
        
        this.remove(this.jwplayer, true);
        
        this.jwplayer = Ext.create('Ext.Panel', {
            id : 'jwPlayerContainer',
            html : '<object type="application/x-shockwave-flash" id="jwplayer" name="jwplayer" data="jwplayer/player.swf" width="480" height="270" style="width: 1286px !important; height: 230px !important; "><param name="allowfullscreen" value="true"><param name="allowscriptaccess" value="always"><param name="flashvars" value="file=' + flashvars.file + '&amp;streamer=' + flashvars.streamer + '"></object>'
        });
        
        this.add(this.jwplayer);
        
        this.sizeMonitor = new Ext.util.SizeMonitor({
            element : this.jwplayer.getEl(),
            callback : this.onSizeChange,
            scope : this
        });
        
        this.onSizeChange();
    }

  4. #4
    Sencha - Senior Forum Manager mitchellsimoens's Avatar
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    Default


    After removal, have you checked the ComponentManager to see if the id is gone?

    Personally, I would only use id for debugging, not production code.
    Mitchell Simoens @SenchaMitch
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  5. #5
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    Default


    Ok how can I have access to
    ComponentManager? By Ext.ComponentManager? It seems private utility class.

    Also why won't you use id? The <object> tag is added to the container as text markup.

  6. #6
    Sencha - Senior Forum Manager mitchellsimoens's Avatar
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    Default


    You are just checking to see if the id was removed for debugging.

    I don't use id as you get collisions. ComponentQuery is a much better solution, your app has a hierarchy and can resolve a component based on this.
    Mitchell Simoens @SenchaMitch
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