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38 lines
1.2 KiB
38 lines
1.2 KiB
9 years ago
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/**
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* Simple class that provides an iframe shim for any absolutely positioned {@link
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* Ext.dom.Element Element} to prevent windowed objects from showing through.
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*
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* Not meant to be used directly. Internally shims are applied to Elements using
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* {@link Ext.dom.Element#enableShim enableShim}. Developers should use the
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* {@link Ext.util.Floating#shim shim} config to add shims to their
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* {@link Ext.Component Components} or set {@link Ext#useShims Ext.useShims}=true.
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* @private
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*/
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Ext.define('Ext.dom.Shim', {
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extend: 'Ext.dom.Underlay',
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cls: Ext.baseCSSPrefix + 'shim',
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constructor: function(config) {
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this.callParent([config]);
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this.elementConfig = {
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tag: 'iframe',
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cls: this.cls,
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role: 'presentation',
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frameBorder: '0',
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src: Ext.SSL_SECURE_URL,
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// tabIndex of -1 ensures that the iframe is not focusable by the user
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tabindex: '-1'
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};
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},
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getInsertionTarget: function() {
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// ensure that the shim is inserted before the shadow in the dom, so that the
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// shadow will be stacked on top of it.
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var shadow = this.shadow;
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return (shadow && shadow.el) || this.target;
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}
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});
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