*
* Options:
*
- * fetch(query): Callback that should fetch suggestions and set the suggestions property. Executed in the context of the
- * textbox
+ * fetch(query): Callback that should fetch suggestions and set the suggestions property.
+ * Executed in the context of the textbox
* Type: Function
- * cancel: Callback function to call when any pending asynchronous suggestions fetches should be canceled.
- * Executed in the context of the textbox
+ * cancel: Callback function to call when any pending asynchronous suggestions fetches
+ * should be canceled. Executed in the context of the textbox
* Type: Function
* special: Set of callbacks for rendering and selecting
* Type: Object of Functions 'render' and 'select'
* Type: Number, Range: 0 - 1200, Default: 120
* submitOnClick: Whether to submit the form containing the textbox when a suggestion is clicked
* Type: Boolean, Default: false
- * maxExpandFactor: Maximum suggestions box width relative to the textbox width. If set to e.g. 2, the suggestions box
- * will never be grown beyond 2 times the width of the textbox.
+ * maxExpandFactor: Maximum suggestions box width relative to the textbox width. If set
+ * to e.g. 2, the suggestions box will never be grown beyond 2 times the width of the textbox.
* Type: Number, Range: 1 - infinity, Default: 3
- * positionFromLeft: Whether to position the suggestion box with the left attribute or the right
+ * expandFrom: Which direction to offset the suggestion box from.
+ * Values 'start' and 'end' translate to left and right respectively depending on the
+ * directionality of the current document, according to $( 'html' ).css( 'direction' ).
+ * Type: String, default: 'auto', options: 'left', 'right', 'start', 'end', 'auto'.
+ * positionFromLeft: Sets expandFrom=left, for backwards compatibility
* Type: Boolean, Default: true
* highlightInput: Whether to hightlight matched portions of the input or not
* Type: Boolean, Default: false
$.suggestions = {
/**
- * Cancel any delayed updateSuggestions() call and inform the user so
- * they can cancel their result fetching if they use AJAX or something
+ * Cancel any delayed maybeFetch() call and callback the context so
+ * they can cancel any async fetching if they use AJAX or something.
*/
cancel: function ( context ) {
if ( context.data.timerID !== null ) {
context.config.cancel.call( context.data.$textbox );
}
},
+
/**
- * Restore the text the user originally typed in the textbox, before it was overwritten by highlight(). This
- * restores the value the currently displayed suggestions are based on, rather than the value just before
+ * Restore the text the user originally typed in the textbox, before it
+ * was overwritten by highlight(). This restores the value the currently
+ * displayed suggestions are based on, rather than the value just before
* highlight() overwrote it; the former is arguably slightly more sensible.
*/
restore: function ( context ) {
context.data.$textbox.val( context.data.prevText );
},
+
/**
- * Ask the user-specified callback for new suggestions. Any previous delayed call to this function still pending
- * will be canceled. If the value in the textbox is empty or hasn't changed since the last time suggestions were fetched, this
- * function does nothing.
+ * Ask the user-specified callback for new suggestions. Any previous delayed
+ * call to this function still pending will be canceled. If the value in the
+ * textbox is empty or hasn't changed since the last time suggestions were fetched,
+ * this function does nothing.
* @param {Boolean} delayed Whether or not to delay this by the currently configured amount of time
*/
update: function ( context, delayed ) {
- // Only fetch if the value in the textbox changed and is not empty
+ // Only fetch if the value in the textbox changed and is not empty, or if the results were hidden
// if the textbox is empty then clear the result div, but leave other settings intouched
function maybeFetch() {
if ( context.data.$textbox.val().length === 0 ) {
context.data.$container.hide();
context.data.prevText = '';
- } else if ( context.data.$textbox.val() !== context.data.prevText ) {
+ } else if (
+ context.data.$textbox.val() !== context.data.prevText ||
+ !context.data.$container.is( ':visible' )
+ ) {
if ( typeof context.config.fetch === 'function' ) {
context.data.prevText = context.data.$textbox.val();
context.config.fetch.call( context.data.$textbox, context.data.$textbox.val() );
}
}
- // Cancel previous call
- if ( context.data.timerID !== null ) {
- clearTimeout( context.data.timerID );
- }
+ // Cancels any delayed maybeFetch call, and invokes context.config.cancel.
+ $.suggestions.cancel( context );
+
if ( delayed ) {
- // Start a new asynchronous call
+ // To avoid many started/aborted requests while typing, we're gonna take a short
+ // break before trying to fetch data.
context.data.timerID = setTimeout( maybeFetch, context.config.delay );
} else {
maybeFetch();
}
$.suggestions.special( context );
},
+
special: function ( context ) {
// Allow custom rendering - but otherwise don't do any rendering
if ( typeof context.config.special.render === 'function' ) {
setTimeout( function () {
// Render special
var $special = context.data.$container.find( '.suggestions-special' );
- context.config.special.render.call( $special, context.data.$textbox.val() );
+ context.config.special.render.call( $special, context.data.$textbox.val(), context );
}, 1 );
}
},
+
/**
* Sets the value of a property, and updates the widget accordingly
* @param property String Name of property
* @param value Mixed Value to set property with
*/
configure: function ( context, property, value ) {
+ var newCSS,
+ $autoEllipseMe, $result, $results, childrenWidth,
+ i, expWidth, matchedText, maxWidth, text;
+
// Validate creation using fallback values
switch( property ) {
case 'fetch':
case 'special':
case 'result':
case '$region':
+ case 'expandFrom':
context.config[property] = value;
break;
case 'suggestions':
// Rebuild the suggestions list
context.data.$container.show();
// Update the size and position of the list
- var newCSS = {
+ newCSS = {
top: context.config.$region.offset().top + context.config.$region.outerHeight(),
bottom: 'auto',
width: context.config.$region.outerWidth(),
height: 'auto'
};
- if ( context.config.positionFromLeft ) {
+
+ // Process expandFrom, after this it is set to left or right.
+ context.config.expandFrom = ( function ( expandFrom ) {
+ var regionWidth, docWidth, regionCenter, docCenter,
+ docDir = $( document.documentElement ).css( 'direction' ),
+ $region = context.config.$region;
+
+ // Backwards compatible
+ if ( context.config.positionFromLeft ) {
+ expandFrom = 'left';
+
+ // Catch invalid values, default to 'auto'
+ } else if ( $.inArray( expandFrom, ['left', 'right', 'start', 'end', 'auto'] ) === -1 ) {
+ expandFrom = 'auto';
+ }
+
+ if ( expandFrom === 'auto' ) {
+ if ( $region.data( 'searchsuggest-expand-dir' ) ) {
+ // If the markup explicitly contains a direction, use it.
+ expandFrom = $region.data( 'searchsuggest-expand-dir' );
+ } else {
+ regionWidth = $region.outerWidth();
+ docWidth = $( document ).width();
+ if ( ( regionWidth / docWidth ) > 0.85 ) {
+ // If the input size takes up more than 85% of the document horizontally
+ // expand the suggestions to the writing direction's native end.
+ expandFrom = 'start';
+ } else {
+ // Calculate the center points of the input and document
+ regionCenter = $region.offset().left + regionWidth / 2;
+ docCenter = docWidth / 2;
+ if ( Math.abs( regionCenter - docCenter ) / docCenter < 0.10 ) {
+ // If the input's center is within 10% of the document center
+ // use the writing direction's native end.
+ expandFrom = 'start';
+ } else {
+ // Otherwise expand the input from the closest side of the page,
+ // towards the side of the page with the most free open space
+ expandFrom = regionCenter > docCenter ? 'right' : 'left';
+ }
+ }
+ }
+ }
+
+ if ( expandFrom === 'start' ) {
+ expandFrom = docDir === 'rtl' ? 'right': 'left';
+
+ } else if ( expandFrom === 'end' ) {
+ expandFrom = docDir === 'rtl' ? 'left': 'right';
+ }
+
+ return expandFrom;
+
+ }( context.config.expandFrom ) );
+
+ if ( context.config.expandFrom === 'left' ) {
+ // Expand from left
newCSS.left = context.config.$region.offset().left;
newCSS.right = 'auto';
} else {
+ // Expand from right
newCSS.left = 'auto';
newCSS.right = $( 'body' ).width() - ( context.config.$region.offset().left + context.config.$region.outerWidth() );
}
+
context.data.$container.css( newCSS );
- var $results = context.data.$container.children( '.suggestions-results' );
+ $results = context.data.$container.children( '.suggestions-results' );
$results.empty();
- var expWidth = -1;
- var $autoEllipseMe = $( [] );
- var matchedText = null;
- for ( var i = 0; i < context.config.suggestions.length; i++ ) {
+ expWidth = -1;
+ $autoEllipseMe = $( [] );
+ matchedText = null;
+ for ( i = 0; i < context.config.suggestions.length; i++ ) {
/*jshint loopfunc:true */
- var text = context.config.suggestions[i];
-
var $result = $( '<div>' )
+ text = context.config.suggestions[i];
+ $result = $( '<div>' )
.addClass( 'suggestions-result' )
.attr( 'rel', i )
.data( 'text', context.config.suggestions[i] )
- .mousemove( function ( e ) {
+ .mousemove( function () {
context.data.selectedWithMouse = true;
$.suggestions.highlight(
- context, $(this).closest( '.suggestions-results div' ), false
+ context,
+ $(this).closest( '.suggestions-results .suggestions-result' ),
+ false
);
} )
.appendTo( $results );
// Allow custom rendering
if ( typeof context.config.result.render === 'function' ) {
- context.config.result.render.call( $result, context.config.suggestions[i] );
+ context.config.result.render.call( $result, context.config.suggestions[i], context );
} else {
// Add <span> with text
- if( context.config.highlightInput ) {
- matchedText = context.data.prevText;
- }
$result.append( $( '<span>' )
.css( 'whiteSpace', 'nowrap' )
.text( text )
);
+ }
- // Widen results box if needed
- // New width is only calculated here, applied later
- var $span = $result.children( 'span' );
- if ( $span.outerWidth() > $result.width() && $span.outerWidth() > expWidth ) {
- // factor in any padding, margin, or border space on the parent
- expWidth = $span.outerWidth() + ( context.data.$container.width() - $span.parent().width());
- }
- $autoEllipseMe = $autoEllipseMe.add( $result );
+ if ( context.config.highlightInput ) {
+ matchedText = context.data.prevText;
+ }
+
+ // Widen results box if needed
+ // New width is only calculated here, applied later
+ childrenWidth = $result.children().outerWidth();
+ if ( childrenWidth > $result.width() && childrenWidth > expWidth ) {
+ // factor in any padding, margin, or border space on the parent
+ expWidth = childrenWidth + ( context.data.$container.width() - $result.width() );
}
+ $autoEllipseMe = $autoEllipseMe.add( $result );
}
// Apply new width for results box, if any
if ( expWidth > context.data.$container.width() ) {
- var maxWidth = context.config.maxExpandFactor*context.data.$textbox.width();
+ maxWidth = context.config.maxExpandFactor*context.data.$textbox.width();
context.data.$container.width( Math.min( expWidth, maxWidth ) );
}
// autoEllipse the results. Has to be done after changing the width
- $autoEllipseMe.autoEllipsis( { hasSpan: true, tooltip: true, matchText: matchedText } );
+ $autoEllipseMe.autoEllipsis( {
+ hasSpan: true,
+ tooltip: true,
+ matchText: matchedText
+ } );
}
}
break;
break;
}
},
+
/**
* Highlight a result in the results table
* @param result <tr> to highlight: jQuery object, or 'prev' or 'next'
result = context.data.$container.find( '.suggestions-result:last' );
} else {
result = selected.prev();
+ if ( !( result.length && result.hasClass( '.suggestions-result' ) ) ) {
+ // there is something in the DOM between selected element and the wrapper, bypass it
+ result = selected.parents( '.suggestions-results > *' ).prev().find( '.suggestions-result' ).eq(0);
+ }
+
if ( selected.length === 0 ) {
// we are at the beginning, so lets jump to the last item
if ( context.data.$container.find( '.suggestions-special' ).html() !== '' ) {
result = context.data.$container.find( '.suggestions-special' );
} else {
- result = context.data.$container.find( '.suggestions-results div:last' );
+ result = context.data.$container.find( '.suggestions-results .suggestions-result:last' );
}
}
}
} else if ( result === 'next' ) {
if ( selected.length === 0 ) {
// No item selected, go to the first one
- result = context.data.$container.find( '.suggestions-results div:first' );
+ result = context.data.$container.find( '.suggestions-results .suggestions-result:first' );
if ( result.length === 0 && context.data.$container.find( '.suggestions-special' ).html() !== '' ) {
// No suggestion exists, go to the special one directly
result = context.data.$container.find( '.suggestions-special' );
}
} else {
result = selected.next();
+ if ( !( result.length && result.hasClass( '.suggestions-result' ) ) ) {
+ // there is something in the DOM between selected element and the wrapper, bypass it
+ result = selected.parents( '.suggestions-results > *' ).next().find( '.suggestions-result' ).eq(0);
+ }
+
if ( selected.is( '.suggestions-special' ) ) {
result = $( [] );
} else if (
context.data.$textbox.trigger( 'change' );
}
},
+
/**
* Respond to keypress event
* @param key Integer Code of key pressed
*/
keypress: function ( e, context, key ) {
- var wasVisible = context.data.$container.is( ':visible' ),
+ var selected,
+ wasVisible = context.data.$container.is( ':visible' ),
preventDefault = false;
+
switch ( key ) {
// Arrow down
case 40:
case 13:
context.data.$container.hide();
preventDefault = wasVisible;
- var selected = context.data.$container.find( '.suggestions-result-current' );
+ selected = context.data.$container.find( '.suggestions-result-current' );
if ( selected.length === 0 || context.data.selectedWithMouse ) {
// if nothing is selected OR if something was selected with the mouse,
// cancel any current requests and submit the form
$.fn.suggestions = function () {
// Multi-context fields
- var returnValue;
- var args = arguments;
+ var returnValue,
+ args = arguments;
$(this).each( function () {
+ var context, key;
/* Construction / Loading */
- var context = $(this).data( 'suggestions-context' );
+ context = $(this).data( 'suggestions-context' );
if ( context === undefined || context === null ) {
context = {
config: {
- 'fetch' : function () {},
- 'cancel': function () {},
- 'special': {},
- 'result': {},
- '$region': $(this),
- 'suggestions': [],
- 'maxRows': 7,
- 'delay': 120,
- 'submitOnClick': false,
- 'maxExpandFactor': 3,
- 'positionFromLeft': true,
- 'highlightInput': false
+ fetch: function () {},
+ cancel: function () {},
+ special: {},
+ result: {},
+ $region: $(this),
+ suggestions: [],
+ maxRows: 7,
+ delay: 120,
+ submitOnClick: false,
+ maxExpandFactor: 3,
+ expandFrom: 'auto',
+ highlightInput: false
}
};
}
if ( args.length > 0 ) {
if ( typeof args[0] === 'object' ) {
// Apply set of properties
- for ( var key in args[0] ) {
+ for ( key in args[0] ) {
$.suggestions.configure( context, key, args[0][key] );
}
} else if ( typeof args[0] === 'string' ) {
$textbox: $(this),
selectedWithMouse: false
};
- // Setup the css for positioning the results box
- var newCSS = {
- top: Math.round( context.data.$textbox.offset().top + context.data.$textbox.outerHeight() ),
- width: context.data.$textbox.outerWidth(),
- display: 'none'
- };
- if ( context.config.positionFromLeft ) {
- newCSS.left = context.config.$region.offset().left;
- newCSS.right = 'auto';
- } else {
- newCSS.left = 'auto';
- newCSS.right = $( 'body' ).width() - ( context.config.$region.offset().left + context.config.$region.outerWidth() );
- }
context.data.$container = $( '<div>' )
- .css( newCSS )
+ .css( 'display', 'none' )
.addClass( 'suggestions' )
.append(
$( '<div>' ).addClass( 'suggestions-results' )
- // Can't use click() because the container div is hidden when the textbox loses focus. Instead,
- // listen for a mousedown followed by a mouseup on the same div
+ // Can't use click() because the container div is hidden when the
+ // textbox loses focus. Instead, listen for a mousedown followed
+ // by a mouseup on the same div.
.mousedown( function ( e ) {
- context.data.mouseDownOn = $( e.target ).closest( '.suggestions-results div' );
+ context.data.mouseDownOn = $( e.target ).closest( '.suggestions-results .suggestions-result' );
} )
.mouseup( function ( e ) {
- var $result = $( e.target ).closest( '.suggestions-results div' );
- var $other = context.data.mouseDownOn;
+ var $result = $( e.target ).closest( '.suggestions-results .suggestions-result' ),
+ $other = context.data.mouseDownOn;
+
context.data.mouseDownOn = $( [] );
if ( $result.get( 0 ) !== $other.get( 0 ) ) {
return;
}
- $.suggestions.highlight( context, $result, true );
- context.data.$container.hide();
- if ( typeof context.config.result.select === 'function' ) {
- context.config.result.select.call( $result, context.data.$textbox );
+ // do not interfere with non-left clicks or if modifier keys are pressed (e.g. ctrl-click)
+ if ( !( e.which !== 1 || e.altKey || e.ctrlKey || e.shiftKey || e.metaKey ) ) {
+ $.suggestions.highlight( context, $result, true );
+ context.data.$container.hide();
+ if ( typeof context.config.result.select === 'function' ) {
+ context.config.result.select.call( $result, context.data.$textbox );
+ }
}
+ // but still restore focus to the textbox, so that the suggestions will be hidden properly
context.data.$textbox.focus();
} )
)
.append(
$( '<div>' ).addClass( 'suggestions-special' )
- // Can't use click() because the container div is hidden when the textbox loses focus. Instead,
- // listen for a mousedown followed by a mouseup on the same div
+ // Can't use click() because the container div is hidden when the
+ // textbox loses focus. Instead, listen for a mousedown followed
+ // by a mouseup on the same div.
.mousedown( function ( e ) {
context.data.mouseDownOn = $( e.target ).closest( '.suggestions-special' );
} )
.mouseup( function ( e ) {
- var $special = $( e.target ).closest( '.suggestions-special' );
- var $other = context.data.mouseDownOn;
+ var $special = $( e.target ).closest( '.suggestions-special' ),
+ $other = context.data.mouseDownOn;
+
context.data.mouseDownOn = $( [] );
if ( $special.get( 0 ) !== $other.get( 0 ) ) {
return;
}
- context.data.$container.hide();
- if ( typeof context.config.special.select === 'function' ) {
- context.config.special.select.call( $special, context.data.$textbox );
+ // do not interfere with non-left clicks or if modifier keys are pressed (e.g. ctrl-click)
+ if ( !( e.which !== 1 || e.altKey || e.ctrlKey || e.shiftKey || e.metaKey ) ) {
+ context.data.$container.hide();
+ if ( typeof context.config.special.select === 'function' ) {
+ context.config.special.select.call( $special, context.data.$textbox );
+ }
}
+ // but still restore focus to the textbox, so that the suggestions will be hidden properly
context.data.$textbox.focus();
} )
.mousemove( function ( e ) {
} )
)
.appendTo( $( 'body' ) );
+
$(this)
// Stop browser autocomplete from interfering
.attr( 'autocomplete', 'off')
$.suggestions.cancel( context );
} );
}
+
// Store the context for next time
$(this).data( 'suggestions-context', context );
} );
dépôts / lhc / web / wiklou.git / blobdiff