mirror of
https://github.com/jquery/jquery-ui.git
synced 2024-11-21 11:04:24 +00:00
1260 lines
35 KiB
JavaScript
1260 lines
35 KiB
JavaScript
/*!
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* jQuery UI Draggable @VERSION
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* http://jqueryui.com
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*
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* Copyright OpenJS Foundation and other contributors
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* Released under the MIT license.
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* http://jquery.org/license
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*/
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//>>label: Draggable
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//>>group: Interactions
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//>>description: Enables dragging functionality for any element.
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//>>docs: http://api.jqueryui.com/draggable/
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//>>demos: http://jqueryui.com/draggable/
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//>>css.structure: ../../themes/base/draggable.css
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( function( factory ) {
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"use strict";
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if ( typeof define === "function" && define.amd ) {
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// AMD. Register as an anonymous module.
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define( [
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"jquery",
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"./mouse",
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"../data",
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"../plugin",
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"../safe-active-element",
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"../safe-blur",
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"../scroll-parent",
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"../version",
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"../widget"
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], factory );
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} else {
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// Browser globals
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factory( jQuery );
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}
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} )( function( $ ) {
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"use strict";
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$.widget( "ui.draggable", $.ui.mouse, {
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version: "@VERSION",
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widgetEventPrefix: "drag",
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options: {
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addClasses: true,
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appendTo: "parent",
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axis: false,
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connectToSortable: false,
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containment: false,
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cursor: "auto",
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cursorAt: false,
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grid: false,
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handle: false,
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helper: "original",
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iframeFix: false,
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opacity: false,
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refreshPositions: false,
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revert: false,
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revertDuration: 500,
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scope: "default",
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scroll: true,
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scrollSensitivity: 20,
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scrollSpeed: 20,
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snap: false,
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snapMode: "both",
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snapTolerance: 20,
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stack: false,
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zIndex: false,
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// Callbacks
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drag: null,
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start: null,
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stop: null
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},
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_create: function() {
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if ( this.options.helper === "original" ) {
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this._setPositionRelative();
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}
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if ( this.options.addClasses ) {
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this._addClass( "ui-draggable" );
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}
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this._setHandleClassName();
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this._mouseInit();
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},
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_setOption: function( key, value ) {
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this._super( key, value );
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if ( key === "handle" ) {
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this._removeHandleClassName();
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this._setHandleClassName();
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}
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},
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_destroy: function() {
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if ( ( this.helper || this.element ).is( ".ui-draggable-dragging" ) ) {
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this.destroyOnClear = true;
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return;
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}
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this._removeHandleClassName();
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this._mouseDestroy();
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},
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_mouseCapture: function( event ) {
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var o = this.options;
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// Among others, prevent a drag on a resizable-handle
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if ( this.helper || o.disabled ||
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$( event.target ).closest( ".ui-resizable-handle" ).length > 0 ) {
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return false;
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}
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//Quit if we're not on a valid handle
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this.handle = this._getHandle( event );
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if ( !this.handle ) {
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return false;
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}
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this._blurActiveElement( event );
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this._blockFrames( o.iframeFix === true ? "iframe" : o.iframeFix );
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return true;
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},
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_blockFrames: function( selector ) {
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this.iframeBlocks = this.document.find( selector ).map( function() {
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var iframe = $( this );
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return $( "<div>" )
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.css( "position", "absolute" )
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.appendTo( iframe.parent() )
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.outerWidth( iframe.outerWidth() )
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.outerHeight( iframe.outerHeight() )
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.offset( iframe.offset() )[ 0 ];
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} );
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},
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_unblockFrames: function() {
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if ( this.iframeBlocks ) {
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this.iframeBlocks.remove();
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delete this.iframeBlocks;
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}
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},
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_blurActiveElement: function( event ) {
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var activeElement = $.ui.safeActiveElement( this.document[ 0 ] ),
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target = $( event.target );
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// Don't blur if the event occurred on an element that is within
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// the currently focused element
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// See #10527, #12472
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if ( target.closest( activeElement ).length ) {
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return;
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}
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// Blur any element that currently has focus, see #4261
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$.ui.safeBlur( activeElement );
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},
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_mouseStart: function( event ) {
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var o = this.options;
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//Create and append the visible helper
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this.helper = this._createHelper( event );
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this._addClass( this.helper, "ui-draggable-dragging" );
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//Cache the helper size
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this._cacheHelperProportions();
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//If ddmanager is used for droppables, set the global draggable
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if ( $.ui.ddmanager ) {
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$.ui.ddmanager.current = this;
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}
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/*
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* - Position generation -
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* This block generates everything position related - it's the core of draggables.
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*/
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//Cache the margins of the original element
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this._cacheMargins();
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//Store the helper's css position
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this.cssPosition = this.helper.css( "position" );
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this.scrollParent = this.helper.scrollParent( true );
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this.offsetParent = this.helper.offsetParent();
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this.hasFixedAncestor = this.helper.parents().filter( function() {
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return $( this ).css( "position" ) === "fixed";
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} ).length > 0;
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//The element's absolute position on the page minus margins
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this.positionAbs = this.element.offset();
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this._refreshOffsets( event );
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//Generate the original position
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this.originalPosition = this.position = this._generatePosition( event, false );
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this.originalPageX = event.pageX;
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this.originalPageY = event.pageY;
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//Adjust the mouse offset relative to the helper if "cursorAt" is supplied
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if ( o.cursorAt ) {
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this._adjustOffsetFromHelper( o.cursorAt );
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}
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//Set a containment if given in the options
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this._setContainment();
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//Trigger event + callbacks
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if ( this._trigger( "start", event ) === false ) {
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this._clear();
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return false;
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}
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//Recache the helper size
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this._cacheHelperProportions();
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//Prepare the droppable offsets
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if ( $.ui.ddmanager && !o.dropBehaviour ) {
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$.ui.ddmanager.prepareOffsets( this, event );
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}
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// Execute the drag once - this causes the helper not to be visible before getting its
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// correct position
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this._mouseDrag( event, true );
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// If the ddmanager is used for droppables, inform the manager that dragging has started
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// (see #5003)
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if ( $.ui.ddmanager ) {
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$.ui.ddmanager.dragStart( this, event );
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}
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return true;
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},
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_refreshOffsets: function( event ) {
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this.offset = {
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top: this.positionAbs.top - this.margins.top,
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left: this.positionAbs.left - this.margins.left,
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scroll: false,
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parent: this._getParentOffset(),
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relative: this._getRelativeOffset()
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};
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this.offset.click = {
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left: event.pageX - this.offset.left,
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top: event.pageY - this.offset.top
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};
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},
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_mouseDrag: function( event, noPropagation ) {
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// reset any necessary cached properties (see #5009)
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if ( this.hasFixedAncestor ) {
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this.offset.parent = this._getParentOffset();
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}
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//Compute the helpers position
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this.position = this._generatePosition( event, true );
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this.positionAbs = this._convertPositionTo( "absolute" );
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//Call plugins and callbacks and use the resulting position if something is returned
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if ( !noPropagation ) {
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var ui = this._uiHash();
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if ( this._trigger( "drag", event, ui ) === false ) {
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this._mouseUp( new $.Event( "mouseup", event ) );
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return false;
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}
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this.position = ui.position;
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}
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this.helper[ 0 ].style.left = this.position.left + "px";
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this.helper[ 0 ].style.top = this.position.top + "px";
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if ( $.ui.ddmanager ) {
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$.ui.ddmanager.drag( this, event );
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}
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return false;
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},
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_mouseStop: function( event ) {
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//If we are using droppables, inform the manager about the drop
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var that = this,
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dropped = false;
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if ( $.ui.ddmanager && !this.options.dropBehaviour ) {
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dropped = $.ui.ddmanager.drop( this, event );
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}
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//if a drop comes from outside (a sortable)
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if ( this.dropped ) {
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dropped = this.dropped;
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this.dropped = false;
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}
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if ( ( this.options.revert === "invalid" && !dropped ) ||
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( this.options.revert === "valid" && dropped ) ||
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this.options.revert === true || ( typeof this.options.revert === "function" &&
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this.options.revert.call( this.element, dropped ) )
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) {
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$( this.helper ).animate(
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this.originalPosition,
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parseInt( this.options.revertDuration, 10 ),
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function() {
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if ( that._trigger( "stop", event ) !== false ) {
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that._clear();
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}
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}
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);
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} else {
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if ( this._trigger( "stop", event ) !== false ) {
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this._clear();
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}
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}
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return false;
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},
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_mouseUp: function( event ) {
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this._unblockFrames();
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// If the ddmanager is used for droppables, inform the manager that dragging has stopped
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// (see #5003)
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if ( $.ui.ddmanager ) {
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$.ui.ddmanager.dragStop( this, event );
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}
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// Only need to focus if the event occurred on the draggable itself, see #10527
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if ( this.handleElement.is( event.target ) ) {
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// The interaction is over; whether or not the click resulted in a drag,
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// focus the element
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this.element.trigger( "focus" );
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}
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return $.ui.mouse.prototype._mouseUp.call( this, event );
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},
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cancel: function() {
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if ( this.helper.is( ".ui-draggable-dragging" ) ) {
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this._mouseUp( new $.Event( "mouseup", { target: this.element[ 0 ] } ) );
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} else {
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this._clear();
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}
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return this;
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},
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_getHandle: function( event ) {
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return this.options.handle ?
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!!$( event.target ).closest( this.element.find( this.options.handle ) ).length :
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true;
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},
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_setHandleClassName: function() {
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this.handleElement = this.options.handle ?
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this.element.find( this.options.handle ) : this.element;
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this._addClass( this.handleElement, "ui-draggable-handle" );
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},
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_removeHandleClassName: function() {
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this._removeClass( this.handleElement, "ui-draggable-handle" );
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},
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_createHelper: function( event ) {
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var o = this.options,
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helperIsFunction = typeof o.helper === "function",
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helper = helperIsFunction ?
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$( o.helper.apply( this.element[ 0 ], [ event ] ) ) :
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( o.helper === "clone" ?
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this.element.clone().removeAttr( "id" ) :
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this.element );
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if ( !helper.parents( "body" ).length ) {
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helper.appendTo( ( o.appendTo === "parent" ?
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this.element[ 0 ].parentNode :
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o.appendTo ) );
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}
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// Http://bugs.jqueryui.com/ticket/9446
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// a helper function can return the original element
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// which wouldn't have been set to relative in _create
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if ( helperIsFunction && helper[ 0 ] === this.element[ 0 ] ) {
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this._setPositionRelative();
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}
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if ( helper[ 0 ] !== this.element[ 0 ] &&
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!( /(fixed|absolute)/ ).test( helper.css( "position" ) ) ) {
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helper.css( "position", "absolute" );
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}
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return helper;
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},
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_setPositionRelative: function() {
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if ( !( /^(?:r|a|f)/ ).test( this.element.css( "position" ) ) ) {
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this.element[ 0 ].style.position = "relative";
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}
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},
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_adjustOffsetFromHelper: function( obj ) {
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if ( typeof obj === "string" ) {
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obj = obj.split( " " );
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}
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if ( Array.isArray( obj ) ) {
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obj = { left: +obj[ 0 ], top: +obj[ 1 ] || 0 };
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}
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if ( "left" in obj ) {
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this.offset.click.left = obj.left + this.margins.left;
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}
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if ( "right" in obj ) {
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this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left;
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}
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if ( "top" in obj ) {
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this.offset.click.top = obj.top + this.margins.top;
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}
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if ( "bottom" in obj ) {
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this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top;
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}
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},
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_isRootNode: function( element ) {
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return ( /(html|body)/i ).test( element.tagName ) || element === this.document[ 0 ];
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},
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_getParentOffset: function() {
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//Get the offsetParent and cache its position
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var po = this.offsetParent.offset(),
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document = this.document[ 0 ];
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// This is a special case where we need to modify a offset calculated on start, since the
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// following happened:
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// 1. The position of the helper is absolute, so it's position is calculated based on the
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// next positioned parent
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// 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't
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// the document, which means that the scroll is included in the initial calculation of the
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// offset of the parent, and never recalculated upon drag
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if ( this.cssPosition === "absolute" && this.scrollParent[ 0 ] !== document &&
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$.contains( this.scrollParent[ 0 ], this.offsetParent[ 0 ] ) ) {
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po.left += this.scrollParent.scrollLeft();
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po.top += this.scrollParent.scrollTop();
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}
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if ( this._isRootNode( this.offsetParent[ 0 ] ) ) {
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po = { top: 0, left: 0 };
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}
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return {
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top: po.top + ( parseInt( this.offsetParent.css( "borderTopWidth" ), 10 ) || 0 ),
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left: po.left + ( parseInt( this.offsetParent.css( "borderLeftWidth" ), 10 ) || 0 )
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};
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},
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_getRelativeOffset: function() {
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if ( this.cssPosition !== "relative" ) {
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return { top: 0, left: 0 };
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}
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var p = this.element.position(),
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scrollIsRootNode = this._isRootNode( this.scrollParent[ 0 ] );
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return {
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top: p.top - ( parseInt( this.helper.css( "top" ), 10 ) || 0 ) +
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( !scrollIsRootNode ? this.scrollParent.scrollTop() : 0 ),
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left: p.left - ( parseInt( this.helper.css( "left" ), 10 ) || 0 ) +
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( !scrollIsRootNode ? this.scrollParent.scrollLeft() : 0 )
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};
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},
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_cacheMargins: function() {
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this.margins = {
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left: ( parseInt( this.element.css( "marginLeft" ), 10 ) || 0 ),
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top: ( parseInt( this.element.css( "marginTop" ), 10 ) || 0 ),
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right: ( parseInt( this.element.css( "marginRight" ), 10 ) || 0 ),
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bottom: ( parseInt( this.element.css( "marginBottom" ), 10 ) || 0 )
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};
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},
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_cacheHelperProportions: function() {
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this.helperProportions = {
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width: this.helper.outerWidth(),
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height: this.helper.outerHeight()
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};
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},
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_setContainment: function() {
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var isUserScrollable, c, ce,
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o = this.options,
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document = this.document[ 0 ];
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this.relativeContainer = null;
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if ( !o.containment ) {
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this.containment = null;
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return;
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}
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if ( o.containment === "window" ) {
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this.containment = [
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$( window ).scrollLeft() - this.offset.relative.left - this.offset.parent.left,
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$( window ).scrollTop() - this.offset.relative.top - this.offset.parent.top,
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$( window ).scrollLeft() + $( window ).width() -
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this.helperProportions.width - this.margins.left,
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$( window ).scrollTop() +
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( $( window ).height() || document.body.parentNode.scrollHeight ) -
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this.helperProportions.height - this.margins.top
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];
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return;
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}
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if ( o.containment === "document" ) {
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this.containment = [
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0,
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0,
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$( document ).width() - this.helperProportions.width - this.margins.left,
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( $( document ).height() || document.body.parentNode.scrollHeight ) -
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this.helperProportions.height - this.margins.top
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];
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return;
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}
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if ( o.containment.constructor === Array ) {
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this.containment = o.containment;
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return;
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}
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if ( o.containment === "parent" ) {
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o.containment = this.helper[ 0 ].parentNode;
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}
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c = $( o.containment );
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ce = c[ 0 ];
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if ( !ce ) {
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return;
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}
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isUserScrollable = /(scroll|auto)/.test( c.css( "overflow" ) );
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this.containment = [
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( parseInt( c.css( "borderLeftWidth" ), 10 ) || 0 ) +
|
|
( parseInt( c.css( "paddingLeft" ), 10 ) || 0 ),
|
|
( parseInt( c.css( "borderTopWidth" ), 10 ) || 0 ) +
|
|
( parseInt( c.css( "paddingTop" ), 10 ) || 0 ),
|
|
( isUserScrollable ? Math.max( ce.scrollWidth, ce.offsetWidth ) : ce.offsetWidth ) -
|
|
( parseInt( c.css( "borderRightWidth" ), 10 ) || 0 ) -
|
|
( parseInt( c.css( "paddingRight" ), 10 ) || 0 ) -
|
|
this.helperProportions.width -
|
|
this.margins.left -
|
|
this.margins.right,
|
|
( isUserScrollable ? Math.max( ce.scrollHeight, ce.offsetHeight ) : ce.offsetHeight ) -
|
|
( parseInt( c.css( "borderBottomWidth" ), 10 ) || 0 ) -
|
|
( parseInt( c.css( "paddingBottom" ), 10 ) || 0 ) -
|
|
this.helperProportions.height -
|
|
this.margins.top -
|
|
this.margins.bottom
|
|
];
|
|
this.relativeContainer = c;
|
|
},
|
|
|
|
_convertPositionTo: function( d, pos ) {
|
|
|
|
if ( !pos ) {
|
|
pos = this.position;
|
|
}
|
|
|
|
var mod = d === "absolute" ? 1 : -1,
|
|
scrollIsRootNode = this._isRootNode( this.scrollParent[ 0 ] );
|
|
|
|
return {
|
|
top: (
|
|
|
|
// The absolute mouse position
|
|
pos.top +
|
|
|
|
// Only for relative positioned nodes: Relative offset from element to offset parent
|
|
this.offset.relative.top * mod +
|
|
|
|
// The offsetParent's offset without borders (offset + border)
|
|
this.offset.parent.top * mod -
|
|
( ( this.cssPosition === "fixed" ?
|
|
-this.offset.scroll.top :
|
|
( scrollIsRootNode ? 0 : this.offset.scroll.top ) ) * mod )
|
|
),
|
|
left: (
|
|
|
|
// The absolute mouse position
|
|
pos.left +
|
|
|
|
// Only for relative positioned nodes: Relative offset from element to offset parent
|
|
this.offset.relative.left * mod +
|
|
|
|
// The offsetParent's offset without borders (offset + border)
|
|
this.offset.parent.left * mod -
|
|
( ( this.cssPosition === "fixed" ?
|
|
-this.offset.scroll.left :
|
|
( scrollIsRootNode ? 0 : this.offset.scroll.left ) ) * mod )
|
|
)
|
|
};
|
|
|
|
},
|
|
|
|
_generatePosition: function( event, constrainPosition ) {
|
|
|
|
var containment, co, top, left,
|
|
o = this.options,
|
|
scrollIsRootNode = this._isRootNode( this.scrollParent[ 0 ] ),
|
|
pageX = event.pageX,
|
|
pageY = event.pageY;
|
|
|
|
// Cache the scroll
|
|
if ( !scrollIsRootNode || !this.offset.scroll ) {
|
|
this.offset.scroll = {
|
|
top: this.scrollParent.scrollTop(),
|
|
left: this.scrollParent.scrollLeft()
|
|
};
|
|
}
|
|
|
|
/*
|
|
* - Position constraining -
|
|
* Constrain the position to a mix of grid, containment.
|
|
*/
|
|
|
|
// If we are not dragging yet, we won't check for options
|
|
if ( constrainPosition ) {
|
|
if ( this.containment ) {
|
|
if ( this.relativeContainer ) {
|
|
co = this.relativeContainer.offset();
|
|
containment = [
|
|
this.containment[ 0 ] + co.left,
|
|
this.containment[ 1 ] + co.top,
|
|
this.containment[ 2 ] + co.left,
|
|
this.containment[ 3 ] + co.top
|
|
];
|
|
} else {
|
|
containment = this.containment;
|
|
}
|
|
|
|
if ( event.pageX - this.offset.click.left < containment[ 0 ] ) {
|
|
pageX = containment[ 0 ] + this.offset.click.left;
|
|
}
|
|
if ( event.pageY - this.offset.click.top < containment[ 1 ] ) {
|
|
pageY = containment[ 1 ] + this.offset.click.top;
|
|
}
|
|
if ( event.pageX - this.offset.click.left > containment[ 2 ] ) {
|
|
pageX = containment[ 2 ] + this.offset.click.left;
|
|
}
|
|
if ( event.pageY - this.offset.click.top > containment[ 3 ] ) {
|
|
pageY = containment[ 3 ] + this.offset.click.top;
|
|
}
|
|
}
|
|
|
|
if ( o.grid ) {
|
|
|
|
//Check for grid elements set to 0 to prevent divide by 0 error causing invalid
|
|
// argument errors in IE (see ticket #6950)
|
|
top = o.grid[ 1 ] ? this.originalPageY + Math.round( ( pageY -
|
|
this.originalPageY ) / o.grid[ 1 ] ) * o.grid[ 1 ] : this.originalPageY;
|
|
pageY = containment ? ( ( top - this.offset.click.top >= containment[ 1 ] ||
|
|
top - this.offset.click.top > containment[ 3 ] ) ?
|
|
top :
|
|
( ( top - this.offset.click.top >= containment[ 1 ] ) ?
|
|
top - o.grid[ 1 ] : top + o.grid[ 1 ] ) ) : top;
|
|
|
|
left = o.grid[ 0 ] ? this.originalPageX +
|
|
Math.round( ( pageX - this.originalPageX ) / o.grid[ 0 ] ) * o.grid[ 0 ] :
|
|
this.originalPageX;
|
|
pageX = containment ? ( ( left - this.offset.click.left >= containment[ 0 ] ||
|
|
left - this.offset.click.left > containment[ 2 ] ) ?
|
|
left :
|
|
( ( left - this.offset.click.left >= containment[ 0 ] ) ?
|
|
left - o.grid[ 0 ] : left + o.grid[ 0 ] ) ) : left;
|
|
}
|
|
|
|
if ( o.axis === "y" ) {
|
|
pageX = this.originalPageX;
|
|
}
|
|
|
|
if ( o.axis === "x" ) {
|
|
pageY = this.originalPageY;
|
|
}
|
|
}
|
|
|
|
return {
|
|
top: (
|
|
|
|
// The absolute mouse position
|
|
pageY -
|
|
|
|
// Click offset (relative to the element)
|
|
this.offset.click.top -
|
|
|
|
// Only for relative positioned nodes: Relative offset from element to offset parent
|
|
this.offset.relative.top -
|
|
|
|
// The offsetParent's offset without borders (offset + border)
|
|
this.offset.parent.top +
|
|
( this.cssPosition === "fixed" ?
|
|
-this.offset.scroll.top :
|
|
( scrollIsRootNode ? 0 : this.offset.scroll.top ) )
|
|
),
|
|
left: (
|
|
|
|
// The absolute mouse position
|
|
pageX -
|
|
|
|
// Click offset (relative to the element)
|
|
this.offset.click.left -
|
|
|
|
// Only for relative positioned nodes: Relative offset from element to offset parent
|
|
this.offset.relative.left -
|
|
|
|
// The offsetParent's offset without borders (offset + border)
|
|
this.offset.parent.left +
|
|
( this.cssPosition === "fixed" ?
|
|
-this.offset.scroll.left :
|
|
( scrollIsRootNode ? 0 : this.offset.scroll.left ) )
|
|
)
|
|
};
|
|
|
|
},
|
|
|
|
_clear: function() {
|
|
this._removeClass( this.helper, "ui-draggable-dragging" );
|
|
if ( this.helper[ 0 ] !== this.element[ 0 ] && !this.cancelHelperRemoval ) {
|
|
this.helper.remove();
|
|
}
|
|
this.helper = null;
|
|
this.cancelHelperRemoval = false;
|
|
if ( this.destroyOnClear ) {
|
|
this.destroy();
|
|
}
|
|
},
|
|
|
|
// From now on bulk stuff - mainly helpers
|
|
|
|
_trigger: function( type, event, ui ) {
|
|
ui = ui || this._uiHash();
|
|
$.ui.plugin.call( this, type, [ event, ui, this ], true );
|
|
|
|
// Absolute position and offset (see #6884 ) have to be recalculated after plugins
|
|
if ( /^(drag|start|stop)/.test( type ) ) {
|
|
this.positionAbs = this._convertPositionTo( "absolute" );
|
|
ui.offset = this.positionAbs;
|
|
}
|
|
return $.Widget.prototype._trigger.call( this, type, event, ui );
|
|
},
|
|
|
|
plugins: {},
|
|
|
|
_uiHash: function() {
|
|
return {
|
|
helper: this.helper,
|
|
position: this.position,
|
|
originalPosition: this.originalPosition,
|
|
offset: this.positionAbs
|
|
};
|
|
}
|
|
|
|
} );
|
|
|
|
$.ui.plugin.add( "draggable", "connectToSortable", {
|
|
start: function( event, ui, draggable ) {
|
|
var uiSortable = $.extend( {}, ui, {
|
|
item: draggable.element
|
|
} );
|
|
|
|
draggable.sortables = [];
|
|
$( draggable.options.connectToSortable ).each( function() {
|
|
var sortable = $( this ).sortable( "instance" );
|
|
|
|
if ( sortable && !sortable.options.disabled ) {
|
|
draggable.sortables.push( sortable );
|
|
|
|
// RefreshPositions is called at drag start to refresh the containerCache
|
|
// which is used in drag. This ensures it's initialized and synchronized
|
|
// with any changes that might have happened on the page since initialization.
|
|
sortable.refreshPositions();
|
|
sortable._trigger( "activate", event, uiSortable );
|
|
}
|
|
} );
|
|
},
|
|
stop: function( event, ui, draggable ) {
|
|
var uiSortable = $.extend( {}, ui, {
|
|
item: draggable.element
|
|
} );
|
|
|
|
draggable.cancelHelperRemoval = false;
|
|
|
|
$.each( draggable.sortables, function() {
|
|
var sortable = this;
|
|
|
|
if ( sortable.isOver ) {
|
|
sortable.isOver = 0;
|
|
|
|
// Allow this sortable to handle removing the helper
|
|
draggable.cancelHelperRemoval = true;
|
|
sortable.cancelHelperRemoval = false;
|
|
|
|
// Use _storedCSS To restore properties in the sortable,
|
|
// as this also handles revert (#9675) since the draggable
|
|
// may have modified them in unexpected ways (#8809)
|
|
sortable._storedCSS = {
|
|
position: sortable.placeholder.css( "position" ),
|
|
top: sortable.placeholder.css( "top" ),
|
|
left: sortable.placeholder.css( "left" )
|
|
};
|
|
|
|
sortable._mouseStop( event );
|
|
|
|
// Once drag has ended, the sortable should return to using
|
|
// its original helper, not the shared helper from draggable
|
|
sortable.options.helper = sortable.options._helper;
|
|
} else {
|
|
|
|
// Prevent this Sortable from removing the helper.
|
|
// However, don't set the draggable to remove the helper
|
|
// either as another connected Sortable may yet handle the removal.
|
|
sortable.cancelHelperRemoval = true;
|
|
|
|
sortable._trigger( "deactivate", event, uiSortable );
|
|
}
|
|
} );
|
|
},
|
|
drag: function( event, ui, draggable ) {
|
|
$.each( draggable.sortables, function() {
|
|
var innermostIntersecting = false,
|
|
sortable = this;
|
|
|
|
// Copy over variables that sortable's _intersectsWith uses
|
|
sortable.positionAbs = draggable.positionAbs;
|
|
sortable.helperProportions = draggable.helperProportions;
|
|
sortable.offset.click = draggable.offset.click;
|
|
|
|
if ( sortable._intersectsWith( sortable.containerCache ) ) {
|
|
innermostIntersecting = true;
|
|
|
|
$.each( draggable.sortables, function() {
|
|
|
|
// Copy over variables that sortable's _intersectsWith uses
|
|
this.positionAbs = draggable.positionAbs;
|
|
this.helperProportions = draggable.helperProportions;
|
|
this.offset.click = draggable.offset.click;
|
|
|
|
if ( this !== sortable &&
|
|
this._intersectsWith( this.containerCache ) &&
|
|
$.contains( sortable.element[ 0 ], this.element[ 0 ] ) ) {
|
|
innermostIntersecting = false;
|
|
}
|
|
|
|
return innermostIntersecting;
|
|
} );
|
|
}
|
|
|
|
if ( innermostIntersecting ) {
|
|
|
|
// If it intersects, we use a little isOver variable and set it once,
|
|
// so that the move-in stuff gets fired only once.
|
|
if ( !sortable.isOver ) {
|
|
sortable.isOver = 1;
|
|
|
|
// Store draggable's parent in case we need to reappend to it later.
|
|
draggable._parent = ui.helper.parent();
|
|
|
|
sortable.currentItem = ui.helper
|
|
.appendTo( sortable.element )
|
|
.data( "ui-sortable-item", true );
|
|
|
|
// Store helper option to later restore it
|
|
sortable.options._helper = sortable.options.helper;
|
|
|
|
sortable.options.helper = function() {
|
|
return ui.helper[ 0 ];
|
|
};
|
|
|
|
// Fire the start events of the sortable with our passed browser event,
|
|
// and our own helper (so it doesn't create a new one)
|
|
event.target = sortable.currentItem[ 0 ];
|
|
sortable._mouseCapture( event, true );
|
|
sortable._mouseStart( event, true, true );
|
|
|
|
// Because the browser event is way off the new appended portlet,
|
|
// modify necessary variables to reflect the changes
|
|
sortable.offset.click.top = draggable.offset.click.top;
|
|
sortable.offset.click.left = draggable.offset.click.left;
|
|
sortable.offset.parent.left -= draggable.offset.parent.left -
|
|
sortable.offset.parent.left;
|
|
sortable.offset.parent.top -= draggable.offset.parent.top -
|
|
sortable.offset.parent.top;
|
|
|
|
draggable._trigger( "toSortable", event );
|
|
|
|
// Inform draggable that the helper is in a valid drop zone,
|
|
// used solely in the revert option to handle "valid/invalid".
|
|
draggable.dropped = sortable.element;
|
|
|
|
// Need to refreshPositions of all sortables in the case that
|
|
// adding to one sortable changes the location of the other sortables (#9675)
|
|
$.each( draggable.sortables, function() {
|
|
this.refreshPositions();
|
|
} );
|
|
|
|
// Hack so receive/update callbacks work (mostly)
|
|
draggable.currentItem = draggable.element;
|
|
sortable.fromOutside = draggable;
|
|
}
|
|
|
|
if ( sortable.currentItem ) {
|
|
sortable._mouseDrag( event );
|
|
|
|
// Copy the sortable's position because the draggable's can potentially reflect
|
|
// a relative position, while sortable is always absolute, which the dragged
|
|
// element has now become. (#8809)
|
|
ui.position = sortable.position;
|
|
}
|
|
} else {
|
|
|
|
// If it doesn't intersect with the sortable, and it intersected before,
|
|
// we fake the drag stop of the sortable, but make sure it doesn't remove
|
|
// the helper by using cancelHelperRemoval.
|
|
if ( sortable.isOver ) {
|
|
|
|
sortable.isOver = 0;
|
|
sortable.cancelHelperRemoval = true;
|
|
|
|
// Calling sortable's mouseStop would trigger a revert,
|
|
// so revert must be temporarily false until after mouseStop is called.
|
|
sortable.options._revert = sortable.options.revert;
|
|
sortable.options.revert = false;
|
|
|
|
sortable._trigger( "out", event, sortable._uiHash( sortable ) );
|
|
sortable._mouseStop( event, true );
|
|
|
|
// Restore sortable behaviors that were modfied
|
|
// when the draggable entered the sortable area (#9481)
|
|
sortable.options.revert = sortable.options._revert;
|
|
sortable.options.helper = sortable.options._helper;
|
|
|
|
if ( sortable.placeholder ) {
|
|
sortable.placeholder.remove();
|
|
}
|
|
|
|
// Restore and recalculate the draggable's offset considering the sortable
|
|
// may have modified them in unexpected ways. (#8809, #10669)
|
|
ui.helper.appendTo( draggable._parent );
|
|
draggable._refreshOffsets( event );
|
|
ui.position = draggable._generatePosition( event, true );
|
|
|
|
draggable._trigger( "fromSortable", event );
|
|
|
|
// Inform draggable that the helper is no longer in a valid drop zone
|
|
draggable.dropped = false;
|
|
|
|
// Need to refreshPositions of all sortables just in case removing
|
|
// from one sortable changes the location of other sortables (#9675)
|
|
$.each( draggable.sortables, function() {
|
|
this.refreshPositions();
|
|
} );
|
|
}
|
|
}
|
|
} );
|
|
}
|
|
} );
|
|
|
|
$.ui.plugin.add( "draggable", "cursor", {
|
|
start: function( event, ui, instance ) {
|
|
var t = $( "body" ),
|
|
o = instance.options;
|
|
|
|
if ( t.css( "cursor" ) ) {
|
|
o._cursor = t.css( "cursor" );
|
|
}
|
|
t.css( "cursor", o.cursor );
|
|
},
|
|
stop: function( event, ui, instance ) {
|
|
var o = instance.options;
|
|
if ( o._cursor ) {
|
|
$( "body" ).css( "cursor", o._cursor );
|
|
}
|
|
}
|
|
} );
|
|
|
|
$.ui.plugin.add( "draggable", "opacity", {
|
|
start: function( event, ui, instance ) {
|
|
var t = $( ui.helper ),
|
|
o = instance.options;
|
|
if ( t.css( "opacity" ) ) {
|
|
o._opacity = t.css( "opacity" );
|
|
}
|
|
t.css( "opacity", o.opacity );
|
|
},
|
|
stop: function( event, ui, instance ) {
|
|
var o = instance.options;
|
|
if ( o._opacity ) {
|
|
$( ui.helper ).css( "opacity", o._opacity );
|
|
}
|
|
}
|
|
} );
|
|
|
|
$.ui.plugin.add( "draggable", "scroll", {
|
|
start: function( event, ui, i ) {
|
|
if ( !i.scrollParentNotHidden ) {
|
|
i.scrollParentNotHidden = i.helper.scrollParent( false );
|
|
}
|
|
|
|
if ( i.scrollParentNotHidden[ 0 ] !== i.document[ 0 ] &&
|
|
i.scrollParentNotHidden[ 0 ].tagName !== "HTML" ) {
|
|
i.overflowOffset = i.scrollParentNotHidden.offset();
|
|
}
|
|
},
|
|
drag: function( event, ui, i ) {
|
|
|
|
var o = i.options,
|
|
scrolled = false,
|
|
scrollParent = i.scrollParentNotHidden[ 0 ],
|
|
document = i.document[ 0 ];
|
|
|
|
if ( scrollParent !== document && scrollParent.tagName !== "HTML" ) {
|
|
if ( !o.axis || o.axis !== "x" ) {
|
|
if ( ( i.overflowOffset.top + scrollParent.offsetHeight ) - event.pageY <
|
|
o.scrollSensitivity ) {
|
|
scrollParent.scrollTop = scrolled = scrollParent.scrollTop + o.scrollSpeed;
|
|
} else if ( event.pageY - i.overflowOffset.top < o.scrollSensitivity ) {
|
|
scrollParent.scrollTop = scrolled = scrollParent.scrollTop - o.scrollSpeed;
|
|
}
|
|
}
|
|
|
|
if ( !o.axis || o.axis !== "y" ) {
|
|
if ( ( i.overflowOffset.left + scrollParent.offsetWidth ) - event.pageX <
|
|
o.scrollSensitivity ) {
|
|
scrollParent.scrollLeft = scrolled = scrollParent.scrollLeft + o.scrollSpeed;
|
|
} else if ( event.pageX - i.overflowOffset.left < o.scrollSensitivity ) {
|
|
scrollParent.scrollLeft = scrolled = scrollParent.scrollLeft - o.scrollSpeed;
|
|
}
|
|
}
|
|
|
|
} else {
|
|
|
|
if ( !o.axis || o.axis !== "x" ) {
|
|
if ( event.pageY - $( document ).scrollTop() < o.scrollSensitivity ) {
|
|
scrolled = $( document ).scrollTop( $( document ).scrollTop() - o.scrollSpeed );
|
|
} else if ( $( window ).height() - ( event.pageY - $( document ).scrollTop() ) <
|
|
o.scrollSensitivity ) {
|
|
scrolled = $( document ).scrollTop( $( document ).scrollTop() + o.scrollSpeed );
|
|
}
|
|
}
|
|
|
|
if ( !o.axis || o.axis !== "y" ) {
|
|
if ( event.pageX - $( document ).scrollLeft() < o.scrollSensitivity ) {
|
|
scrolled = $( document ).scrollLeft(
|
|
$( document ).scrollLeft() - o.scrollSpeed
|
|
);
|
|
} else if ( $( window ).width() - ( event.pageX - $( document ).scrollLeft() ) <
|
|
o.scrollSensitivity ) {
|
|
scrolled = $( document ).scrollLeft(
|
|
$( document ).scrollLeft() + o.scrollSpeed
|
|
);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
if ( scrolled !== false && $.ui.ddmanager && !o.dropBehaviour ) {
|
|
$.ui.ddmanager.prepareOffsets( i, event );
|
|
}
|
|
|
|
}
|
|
} );
|
|
|
|
$.ui.plugin.add( "draggable", "snap", {
|
|
start: function( event, ui, i ) {
|
|
|
|
var o = i.options;
|
|
|
|
i.snapElements = [];
|
|
|
|
$( o.snap.constructor !== String ? ( o.snap.items || ":data(ui-draggable)" ) : o.snap )
|
|
.each( function() {
|
|
var $t = $( this ),
|
|
$o = $t.offset();
|
|
if ( this !== i.element[ 0 ] ) {
|
|
i.snapElements.push( {
|
|
item: this,
|
|
width: $t.outerWidth(), height: $t.outerHeight(),
|
|
top: $o.top, left: $o.left
|
|
} );
|
|
}
|
|
} );
|
|
|
|
},
|
|
drag: function( event, ui, inst ) {
|
|
|
|
var ts, bs, ls, rs, l, r, t, b, i, first,
|
|
o = inst.options,
|
|
d = o.snapTolerance,
|
|
x1 = ui.offset.left, x2 = x1 + inst.helperProportions.width,
|
|
y1 = ui.offset.top, y2 = y1 + inst.helperProportions.height;
|
|
|
|
for ( i = inst.snapElements.length - 1; i >= 0; i-- ) {
|
|
|
|
l = inst.snapElements[ i ].left - inst.margins.left;
|
|
r = l + inst.snapElements[ i ].width;
|
|
t = inst.snapElements[ i ].top - inst.margins.top;
|
|
b = t + inst.snapElements[ i ].height;
|
|
|
|
if ( x2 < l - d || x1 > r + d || y2 < t - d || y1 > b + d ||
|
|
!$.contains( inst.snapElements[ i ].item.ownerDocument,
|
|
inst.snapElements[ i ].item ) ) {
|
|
if ( inst.snapElements[ i ].snapping ) {
|
|
if ( inst.options.snap.release ) {
|
|
inst.options.snap.release.call(
|
|
inst.element,
|
|
event,
|
|
$.extend( inst._uiHash(), { snapItem: inst.snapElements[ i ].item } )
|
|
);
|
|
}
|
|
}
|
|
inst.snapElements[ i ].snapping = false;
|
|
continue;
|
|
}
|
|
|
|
if ( o.snapMode !== "inner" ) {
|
|
ts = Math.abs( t - y2 ) <= d;
|
|
bs = Math.abs( b - y1 ) <= d;
|
|
ls = Math.abs( l - x2 ) <= d;
|
|
rs = Math.abs( r - x1 ) <= d;
|
|
if ( ts ) {
|
|
ui.position.top = inst._convertPositionTo( "relative", {
|
|
top: t - inst.helperProportions.height,
|
|
left: 0
|
|
} ).top;
|
|
}
|
|
if ( bs ) {
|
|
ui.position.top = inst._convertPositionTo( "relative", {
|
|
top: b,
|
|
left: 0
|
|
} ).top;
|
|
}
|
|
if ( ls ) {
|
|
ui.position.left = inst._convertPositionTo( "relative", {
|
|
top: 0,
|
|
left: l - inst.helperProportions.width
|
|
} ).left;
|
|
}
|
|
if ( rs ) {
|
|
ui.position.left = inst._convertPositionTo( "relative", {
|
|
top: 0,
|
|
left: r
|
|
} ).left;
|
|
}
|
|
}
|
|
|
|
first = ( ts || bs || ls || rs );
|
|
|
|
if ( o.snapMode !== "outer" ) {
|
|
ts = Math.abs( t - y1 ) <= d;
|
|
bs = Math.abs( b - y2 ) <= d;
|
|
ls = Math.abs( l - x1 ) <= d;
|
|
rs = Math.abs( r - x2 ) <= d;
|
|
if ( ts ) {
|
|
ui.position.top = inst._convertPositionTo( "relative", {
|
|
top: t,
|
|
left: 0
|
|
} ).top;
|
|
}
|
|
if ( bs ) {
|
|
ui.position.top = inst._convertPositionTo( "relative", {
|
|
top: b - inst.helperProportions.height,
|
|
left: 0
|
|
} ).top;
|
|
}
|
|
if ( ls ) {
|
|
ui.position.left = inst._convertPositionTo( "relative", {
|
|
top: 0,
|
|
left: l
|
|
} ).left;
|
|
}
|
|
if ( rs ) {
|
|
ui.position.left = inst._convertPositionTo( "relative", {
|
|
top: 0,
|
|
left: r - inst.helperProportions.width
|
|
} ).left;
|
|
}
|
|
}
|
|
|
|
if ( !inst.snapElements[ i ].snapping && ( ts || bs || ls || rs || first ) ) {
|
|
if ( inst.options.snap.snap ) {
|
|
inst.options.snap.snap.call(
|
|
inst.element,
|
|
event,
|
|
$.extend( inst._uiHash(), {
|
|
snapItem: inst.snapElements[ i ].item
|
|
} ) );
|
|
}
|
|
}
|
|
inst.snapElements[ i ].snapping = ( ts || bs || ls || rs || first );
|
|
|
|
}
|
|
|
|
}
|
|
} );
|
|
|
|
$.ui.plugin.add( "draggable", "stack", {
|
|
start: function( event, ui, instance ) {
|
|
var min,
|
|
o = instance.options,
|
|
group = $.makeArray( $( o.stack ) ).sort( function( a, b ) {
|
|
return ( parseInt( $( a ).css( "zIndex" ), 10 ) || 0 ) -
|
|
( parseInt( $( b ).css( "zIndex" ), 10 ) || 0 );
|
|
} );
|
|
|
|
if ( !group.length ) {
|
|
return;
|
|
}
|
|
|
|
min = parseInt( $( group[ 0 ] ).css( "zIndex" ), 10 ) || 0;
|
|
$( group ).each( function( i ) {
|
|
$( this ).css( "zIndex", min + i );
|
|
} );
|
|
this.css( "zIndex", ( min + group.length ) );
|
|
}
|
|
} );
|
|
|
|
$.ui.plugin.add( "draggable", "zIndex", {
|
|
start: function( event, ui, instance ) {
|
|
var t = $( ui.helper ),
|
|
o = instance.options;
|
|
|
|
if ( t.css( "zIndex" ) ) {
|
|
o._zIndex = t.css( "zIndex" );
|
|
}
|
|
t.css( "zIndex", o.zIndex );
|
|
},
|
|
stop: function( event, ui, instance ) {
|
|
var o = instance.options;
|
|
|
|
if ( o._zIndex ) {
|
|
$( ui.helper ).css( "zIndex", o._zIndex );
|
|
}
|
|
}
|
|
} );
|
|
|
|
return $.ui.draggable;
|
|
|
|
} );
|