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/**
* Renderer for border-image
* @constructor
* @param {Element} el The target element
* @param {Object} styleInfos The StyleInfo objects
* @param {PIE.RootRenderer} parent
*/
PIE.BorderImageRenderer = PIE.RendererBase.newRenderer( {
boxZIndex: 5,
pieceNames: [ 't', 'tr', 'r', 'br', 'b', 'bl', 'l', 'tl', 'c' ],
needsUpdate: function() {
return this.styleInfos.borderImageInfo.changed();
},
isActive: function() {
return this.styleInfos.borderImageInfo.isActive();
},
draw: function() {
this.getBox(); //make sure pieces are created
var props = this.styleInfos.borderImageInfo.getProps(),
borderProps = this.styleInfos.borderInfo.getProps(),
bounds = this.boundsInfo.getBounds(),
el = this.targetElement,
pieces = this.pieces;
PIE.Util.withImageSize( props.src, function( imgSize ) {
var elW = bounds.w,
elH = bounds.h,
zero = PIE.getLength( '0' ),
widths = props.widths || ( borderProps ? borderProps.widths : { 't': zero, 'r': zero, 'b': zero, 'l': zero } ),
widthT = widths['t'].pixels( el ),
widthR = widths['r'].pixels( el ),
widthB = widths['b'].pixels( el ),
widthL = widths['l'].pixels( el ),
slices = props.slice,
sliceT = slices['t'].pixels( el ),
sliceR = slices['r'].pixels( el ),
sliceB = slices['b'].pixels( el ),
sliceL = slices['l'].pixels( el );
// Piece positions and sizes
function setSizeAndPos( piece, w, h, x, y ) {
var s = pieces[piece].style,
max = Math.max;
s.width = max(w, 0);
s.height = max(h, 0);
s.left = x;
s.top = y;
}
setSizeAndPos( 'tl', widthL, widthT, 0, 0 );
setSizeAndPos( 't', elW - widthL - widthR, widthT, widthL, 0 );
setSizeAndPos( 'tr', widthR, widthT, elW - widthR, 0 );
setSizeAndPos( 'r', widthR, elH - widthT - widthB, elW - widthR, widthT );
setSizeAndPos( 'br', widthR, widthB, elW - widthR, elH - widthB );
setSizeAndPos( 'b', elW - widthL - widthR, widthB, widthL, elH - widthB );
setSizeAndPos( 'bl', widthL, widthB, 0, elH - widthB );
setSizeAndPos( 'l', widthL, elH - widthT - widthB, 0, widthT );
setSizeAndPos( 'c', elW - widthL - widthR, elH - widthT - widthB, widthL, widthT );
// image croppings
function setCrops( sides, crop, val ) {
for( var i=0, len=sides.length; i < len; i++ ) {
pieces[ sides[i] ]['imagedata'][ crop ] = val;
}
}
// corners
setCrops( [ 'tl', 't', 'tr' ], 'cropBottom', ( imgSize.h - sliceT ) / imgSize.h );
setCrops( [ 'tl', 'l', 'bl' ], 'cropRight', ( imgSize.w - sliceL ) / imgSize.w );
setCrops( [ 'bl', 'b', 'br' ], 'cropTop', ( imgSize.h - sliceB ) / imgSize.h );
setCrops( [ 'tr', 'r', 'br' ], 'cropLeft', ( imgSize.w - sliceR ) / imgSize.w );
// edges and center
// TODO right now this treats everything like 'stretch', need to support other schemes
//if( props.repeat.v === 'stretch' ) {
setCrops( [ 'l', 'r', 'c' ], 'cropTop', sliceT / imgSize.h );
setCrops( [ 'l', 'r', 'c' ], 'cropBottom', sliceB / imgSize.h );
//}
//if( props.repeat.h === 'stretch' ) {
setCrops( [ 't', 'b', 'c' ], 'cropLeft', sliceL / imgSize.w );
setCrops( [ 't', 'b', 'c' ], 'cropRight', sliceR / imgSize.w );
//}
// center fill
pieces['c'].style.display = props.fill ? '' : 'none';
}, this );
},
getBox: function() {
var box = this.parent.getLayer( this.boxZIndex ),
s, piece, i,
pieceNames = this.pieceNames,
len = pieceNames.length;
if( !box ) {
box = doc.createElement( 'border-image' );
s = box.style;
s.position = 'absolute';
this.pieces = {};
for( i = 0; i < len; i++ ) {
piece = this.pieces[ pieceNames[i] ] = PIE.Util.createVmlElement( 'rect' );
piece.appendChild( PIE.Util.createVmlElement( 'imagedata' ) );
s = piece.style;
s['behavior'] = 'url(#default#VML)';
s.position = "absolute";
s.top = s.left = 0;
piece['imagedata'].src = this.styleInfos.borderImageInfo.getProps().src;
piece.stroked = false;
piece.filled = false;
box.appendChild( piece );
}
this.parent.addLayer( this.boxZIndex, box );
}
return box;
},
prepareUpdate: function() {
if (this.isActive()) {
var me = this,
el = me.targetElement,
rs = el.runtimeStyle,
widths = me.styleInfos.borderImageInfo.getProps().widths;
// Force border-style to solid so it doesn't collapse
rs.borderStyle = 'solid';
// If widths specified in border-image shorthand, override border-width
// NOTE px units needed here as this gets used by the IE9 renderer too
if ( widths ) {
rs.borderTopWidth = widths['t'].pixels( el ) + 'px';
rs.borderRightWidth = widths['r'].pixels( el ) + 'px';
rs.borderBottomWidth = widths['b'].pixels( el ) + 'px';
rs.borderLeftWidth = widths['l'].pixels( el ) + 'px';
}
// Make the border transparent
me.hideBorder();
}
},
destroy: function() {
var me = this,
rs = me.targetElement.runtimeStyle;
rs.borderStyle = '';
if (me.finalized || !me.styleInfos.borderInfo.isActive()) {
rs.borderColor = rs.borderWidth = '';
}
PIE.RendererBase.destroy.call( this );
}
} );
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