tablesorter/js/widgets/widget-resizable.js
Gabor Gyorvari b73162d0c0 Fix resizable widget bindings after tablesorter updateAll event
After updating tablesorter with updateAll event it will reinitalize all widget, but resizable initalized only once internally and there after it was not possible to change columns widths.
2015-11-04 19:05:17 +01:00

393 lines
14 KiB
JavaScript

/*! Widget: resizable - updated 6/26/2015 (v2.22.2) */
/*jshint browser:true, jquery:true, unused:false */
;(function ($, window) {
'use strict';
var ts = $.tablesorter || {};
$.extend(ts.css, {
resizableContainer : 'tablesorter-resizable-container',
resizableHandle : 'tablesorter-resizable-handle',
resizableNoSelect : 'tablesorter-disableSelection',
resizableStorage : 'tablesorter-resizable'
});
// Add extra scroller css
$(function(){
var s = '<style>' +
'body.' + ts.css.resizableNoSelect + ' { -ms-user-select: none; -moz-user-select: -moz-none;' +
'-khtml-user-select: none; -webkit-user-select: none; user-select: none; }' +
'.' + ts.css.resizableContainer + ' { position: relative; height: 1px; }' +
// make handle z-index > than stickyHeader z-index, so the handle stays above sticky header
'.' + ts.css.resizableHandle + ' { position: absolute; display: inline-block; width: 8px;' +
'top: 1px; cursor: ew-resize; z-index: 3; user-select: none; -moz-user-select: none; }' +
'</style>';
$(s).appendTo('body');
});
ts.resizable = {
init : function( c, wo ) {
if ( c.$table.hasClass( 'hasResizable' ) ) { return; }
c.$table.addClass( 'hasResizable' );
var noResize, $header, column, storedSizes, tmp,
$table = c.$table,
$parent = $table.parent(),
marginTop = parseInt( $table.css( 'margin-top' ), 10 ),
// internal variables
vars = wo.resizable_vars = {
useStorage : ts.storage && wo.resizable !== false,
$wrap : $parent,
mouseXPosition : 0,
$target : null,
$next : null,
overflow : $parent.css('overflow') === 'auto' ||
$parent.css('overflow') === 'scroll' ||
$parent.css('overflow-x') === 'auto' ||
$parent.css('overflow-x') === 'scroll',
storedSizes : []
};
// set default widths
ts.resizableReset( c.table, true );
// now get measurements!
vars.tableWidth = $table.width();
// attempt to autodetect
vars.fullWidth = Math.abs( $parent.width() - vars.tableWidth ) < 20;
/*
// Hacky method to determine if table width is set to 'auto'
// http://stackoverflow.com/a/20892048/145346
if ( !vars.fullWidth ) {
tmp = $table.width();
$header = $table.wrap('<span>').parent(); // temp variable
storedSizes = parseInt( $table.css( 'margin-left' ), 10 ) || 0;
$table.css( 'margin-left', storedSizes + 50 );
vars.tableWidth = $header.width() > tmp ? 'auto' : tmp;
$table.css( 'margin-left', storedSizes ? storedSizes : '' );
$header = null;
$table.unwrap('<span>');
}
*/
if ( vars.useStorage && vars.overflow ) {
// save table width
ts.storage( c.table, 'tablesorter-table-original-css-width', vars.tableWidth );
tmp = ts.storage( c.table, 'tablesorter-table-resized-width' ) || 'auto';
ts.resizable.setWidth( $table, tmp, true );
}
wo.resizable_vars.storedSizes = storedSizes = ( vars.useStorage ?
ts.storage( c.table, ts.css.resizableStorage ) :
[] ) || [];
ts.resizable.setWidths( c, wo, storedSizes );
ts.resizable.updateStoredSizes( c, wo );
wo.$resizable_container = $( '<div class="' + ts.css.resizableContainer + '">' )
.css({ top : marginTop })
.insertBefore( $table );
// add container
for ( column = 0; column < c.columns; column++ ) {
$header = c.$headerIndexed[ column ];
tmp = ts.getColumnData( c.table, c.headers, column );
noResize = ts.getData( $header, tmp, 'resizable' ) === 'false';
if ( !noResize ) {
$( '<div class="' + ts.css.resizableHandle + '">' )
.appendTo( wo.$resizable_container )
.attr({
'data-column' : column,
'unselectable' : 'on'
})
.data( 'header', $header )
.bind( 'selectstart', false );
}
}
ts.resizable.setHandlePosition( c, wo );
ts.resizable.bindings( c, wo );
},
updateStoredSizes : function( c, wo ) {
var column, $header,
len = c.columns,
vars = wo.resizable_vars;
vars.storedSizes = [];
for ( column = 0; column < len; column++ ) {
$header = c.$headerIndexed[ column ];
vars.storedSizes[ column ] = $header.is(':visible') ? $header.width() : 0;
}
},
setWidth : function( $el, width, overflow ) {
// overflow tables need min & max width set as well
$el.css({
'width' : width,
'min-width' : overflow ? width : '',
'max-width' : overflow ? width : ''
});
},
setWidths : function( c, wo, storedSizes ) {
var column, $temp,
vars = wo.resizable_vars,
$extra = $( c.namespace + '_extra_headers' ),
$col = c.$table.children( 'colgroup' ).children( 'col' );
storedSizes = storedSizes || vars.storedSizes || [];
// process only if table ID or url match
if ( storedSizes.length ) {
for ( column = 0; column < c.columns; column++ ) {
// set saved resizable widths
ts.resizable.setWidth( c.$headerIndexed[ column ], storedSizes[ column ], vars.overflow );
if ( $extra.length ) {
// stickyHeaders needs to modify min & max width as well
$temp = $extra.eq( column ).add( $col.eq( column ) );
ts.resizable.setWidth( $temp, storedSizes[ column ], vars.overflow );
}
}
$temp = $( c.namespace + '_extra_table' );
if ( $temp.length && !ts.hasWidget( c.table, 'scroller' ) ) {
ts.resizable.setWidth( $temp, c.$table.outerWidth(), vars.overflow );
}
}
},
setHandlePosition : function( c, wo ) {
var startPosition,
hasScroller = ts.hasWidget( c.table, 'scroller' ),
tableHeight = c.$table.height(),
$handles = wo.$resizable_container.children(),
handleCenter = Math.floor( $handles.width() / 2 );
if ( hasScroller ) {
tableHeight = 0;
c.$table.closest( '.' + ts.css.scrollerWrap ).children().each(function(){
var $this = $(this);
// center table has a max-height set
tableHeight += $this.filter('[style*="height"]').length ? $this.height() : $this.children('table').height();
});
}
// subtract out table left position from resizable handles. Fixes #864
startPosition = c.$table.position().left;
$handles.each( function() {
var $this = $(this),
column = parseInt( $this.attr( 'data-column' ), 10 ),
columns = c.columns - 1,
$header = $this.data( 'header' );
if ( !$header ) { return; } // see #859
if ( !$header.is(':visible') ) {
$this.hide();
} else if ( column < columns || column === columns && wo.resizable_addLastColumn ) {
$this.css({
display: 'inline-block',
height : tableHeight,
left : $header.position().left - startPosition + $header.outerWidth() - handleCenter
});
}
});
},
// prevent text selection while dragging resize bar
toggleTextSelection : function( c, wo, toggle ) {
var namespace = c.namespace + 'tsresize';
wo.resizable_vars.disabled = toggle;
$( 'body' ).toggleClass( ts.css.resizableNoSelect, toggle );
if ( toggle ) {
$( 'body' )
.attr( 'unselectable', 'on' )
.bind( 'selectstart' + namespace, false );
} else {
$( 'body' )
.removeAttr( 'unselectable' )
.unbind( 'selectstart' + namespace );
}
},
bindings : function( c, wo ) {
var namespace = c.namespace + 'tsresize';
wo.$resizable_container.children().bind( 'mousedown', function( event ) {
// save header cell and mouse position
var column,
vars = wo.resizable_vars,
$extras = $( c.namespace + '_extra_headers' ),
$header = $( event.target ).data( 'header' );
column = parseInt( $header.attr( 'data-column' ), 10 );
vars.$target = $header = $header.add( $extras.filter('[data-column="' + column + '"]') );
vars.target = column;
// if table is not as wide as it's parent, then resize the table
vars.$next = event.shiftKey || wo.resizable_targetLast ?
$header.parent().children().not( '.resizable-false' ).filter( ':last' ) :
$header.nextAll( ':not(.resizable-false)' ).eq( 0 );
column = parseInt( vars.$next.attr( 'data-column' ), 10 );
vars.$next = vars.$next.add( $extras.filter('[data-column="' + column + '"]') );
vars.next = column;
vars.mouseXPosition = event.pageX;
ts.resizable.updateStoredSizes( c, wo );
ts.resizable.toggleTextSelection(c, wo, true );
});
$( document )
.bind( 'mousemove' + namespace, function( event ) {
var vars = wo.resizable_vars;
// ignore mousemove if no mousedown
if ( !vars.disabled || vars.mouseXPosition === 0 || !vars.$target ) { return; }
if ( wo.resizable_throttle ) {
clearTimeout( vars.timer );
vars.timer = setTimeout( function() {
ts.resizable.mouseMove( c, wo, event );
}, isNaN( wo.resizable_throttle ) ? 5 : wo.resizable_throttle );
} else {
ts.resizable.mouseMove( c, wo, event );
}
})
.bind( 'mouseup' + namespace, function() {
if (!wo.resizable_vars.disabled) { return; }
ts.resizable.toggleTextSelection( c, wo, false );
ts.resizable.stopResize( c, wo );
ts.resizable.setHandlePosition( c, wo );
});
// resizeEnd event triggered by scroller widget
$( window ).bind( 'resize' + namespace + ' resizeEnd' + namespace, function() {
ts.resizable.setHandlePosition( c, wo );
});
// right click to reset columns to default widths
c.$table
.bind( 'columnUpdate' + namespace, function() {
ts.resizable.setHandlePosition( c, wo );
})
.find( 'thead:first' )
.add( $( c.namespace + '_extra_table' ).find( 'thead:first' ) )
.bind( 'contextmenu' + namespace, function() {
// $.isEmptyObject() needs jQuery 1.4+; allow right click if already reset
var allowClick = wo.resizable_vars.storedSizes.length === 0;
ts.resizableReset( c.table );
ts.resizable.setHandlePosition( c, wo );
wo.resizable_vars.storedSizes = [];
return allowClick;
});
},
mouseMove : function( c, wo, event ) {
if ( wo.resizable_vars.mouseXPosition === 0 || !wo.resizable_vars.$target ) { return; }
// resize columns
var column,
total = 0,
vars = wo.resizable_vars,
$next = vars.$next,
tar = vars.storedSizes[ vars.target ],
leftEdge = event.pageX - vars.mouseXPosition;
if ( vars.overflow ) {
if ( tar + leftEdge > 0 ) {
vars.storedSizes[ vars.target ] += leftEdge;
ts.resizable.setWidth( vars.$target, vars.storedSizes[ vars.target ], true );
// update the entire table width
for ( column = 0; column < c.columns; column++ ) {
total += vars.storedSizes[ column ];
}
ts.resizable.setWidth( c.$table.add( $( c.namespace + '_extra_table' ) ), total );
}
if ( !$next.length ) {
// if expanding right-most column, scroll the wrapper
vars.$wrap[0].scrollLeft = c.$table.width();
}
} else if ( vars.fullWidth ) {
vars.storedSizes[ vars.target ] += leftEdge;
vars.storedSizes[ vars.next ] -= leftEdge;
ts.resizable.setWidths( c, wo );
} else {
vars.storedSizes[ vars.target ] += leftEdge;
ts.resizable.setWidths( c, wo );
}
vars.mouseXPosition = event.pageX;
// dynamically update sticky header widths
c.$table.trigger('stickyHeadersUpdate');
},
stopResize : function( c, wo ) {
var vars = wo.resizable_vars;
ts.resizable.updateStoredSizes( c, wo );
if ( vars.useStorage ) {
// save all column widths
ts.storage( c.table, ts.css.resizableStorage, vars.storedSizes );
ts.storage( c.table, 'tablesorter-table-resized-width', c.$table.width() );
}
vars.mouseXPosition = 0;
vars.$target = vars.$next = null;
// will update stickyHeaders, just in case, see #912
c.$table.trigger('stickyHeadersUpdate');
}
};
// this widget saves the column widths if
// $.tablesorter.storage function is included
// **************************
ts.addWidget({
id: 'resizable',
priority: 40,
options: {
resizable : true, // save column widths to storage
resizable_addLastColumn : false,
resizable_widths : [],
resizable_throttle : false, // set to true (5ms) or any number 0-10 range
resizable_targetLast : false,
resizable_fullWidth : null
},
init: function(table, thisWidget, c, wo) {
ts.resizable.init( c, wo );
},
remove: function( table, c, wo, refreshing ) {
if (wo.$resizable_container) {
var namespace = c.namespace + 'tsresize';
c.$table.add( $( c.namespace + '_extra_table' ) )
.removeClass('hasResizable')
.children( 'thead' )
.unbind( 'contextmenu' + namespace );
wo.$resizable_container.remove();
ts.resizable.toggleTextSelection( c, wo, false );
ts.resizableReset( table, refreshing );
$( document ).unbind( 'mousemove' + namespace + ' mouseup' + namespace );
}
}
});
ts.resizableReset = function( table, refreshing ) {
$( table ).each(function(){
var index, $t,
c = this.config,
wo = c && c.widgetOptions,
vars = wo.resizable_vars;
if ( table && c && c.$headerIndexed.length ) {
// restore the initial table width
if ( vars.overflow && vars.tableWidth ) {
ts.resizable.setWidth( c.$table, vars.tableWidth, true );
if ( vars.useStorage ) {
ts.storage( table, 'tablesorter-table-resized-width', 'auto' );
}
}
for ( index = 0; index < c.columns; index++ ) {
$t = c.$headerIndexed[ index ];
if ( wo.resizable_widths && wo.resizable_widths[ index ] ) {
ts.resizable.setWidth( $t, wo.resizable_widths[ index ], vars.overflow );
} else if ( !$t.hasClass( 'resizable-false' ) ) {
// don't clear the width of any column that is not resizable
ts.resizable.setWidth( $t, '', vars.overflow );
}
}
// reset stickyHeader widths
c.$table.trigger( 'stickyHeadersUpdate' );
if ( ts.storage && !refreshing ) {
ts.storage( this, ts.css.resizableStorage, {} );
}
}
});
};
})( jQuery, window );