[Webkit-unassigned] [Bug 29815] REGRESSION (r48698): Cannot enter text in Facebook message content field

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=29815





--- Comment #6 from TAMURA, Kent <tkent at chromium.org>  2009-09-28 20:40:05 PDT ---
I understand the Facebook code.
In the definition of TextInpuTcontrol.prototype:
    setMaxLength:function(maxlength){
    this.maxLength=maxlength;
    this.getRoot().maxLength=this.maxLength||null;
    return this;
    },

This code is called by UIComposer.prototype.initializeTextarea() like:
    initializeTextarea:function(maxLength,initialHeight){
    new TextAreaControl(this.input)
    .setMaxLength(maxLength)
    .setOriginalHeight(initialHeight)
    .setAutogrow(true)
    .onfocus();
    this.input.onfocus='';
    },
where the maxLength parameter is 0.


>	this.getRoot().maxLength=this.maxLength||null;
this.getRoot() is a <textarea> element.  In the case of maxLength==0, null is
set. null is converted to 0.  So textarea.maxLength becomes 0.

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