mirror of
https://github.com/jquery/jquery-ui.git
synced 2024-12-07 06:14:24 +00:00
1139 lines
34 KiB
JavaScript
1139 lines
34 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 jQuery 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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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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"./core",
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"./mouse",
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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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$.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.element.addClass("ui-draggable");
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}
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if (this.options.disabled){
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this.element.addClass("ui-draggable-disabled");
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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.element.removeClass( "ui-draggable ui-draggable-dragging ui-draggable-disabled" );
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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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this._blurActiveElement( event );
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// among others, prevent a drag on a resizable-handle
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if (this.helper || o.disabled || $(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._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 document = this.document[ 0 ];
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// Only need to blur if the event occurred on the draggable itself, see #10527
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if ( !this.handleElement.is( event.target ) ) {
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return;
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}
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// support: IE9
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// IE9 throws an "Unspecified error" accessing document.activeElement from an <iframe>
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try {
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// Support: IE9, IE10
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// If the <body> is blurred, IE will switch windows, see #9520
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if ( document.activeElement && document.activeElement.nodeName.toLowerCase() !== "body" ) {
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// Blur any element that currently has focus, see #4261
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$( document.activeElement ).blur();
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}
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} catch ( error ) {}
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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.helper.addClass("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 $( this ).css( "position" ) === "fixed";
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}).length > 0;
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//The element's absolute position on the page minus margins
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this.positionAbs = this.element.offset();
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this._refreshOffsets( event );
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//Generate the original position
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this.originalPosition = this.position = this._generatePosition( event, false );
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this.originalPageX = event.pageX;
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this.originalPageY = event.pageY;
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//Adjust the mouse offset relative to the helper if "cursorAt" is supplied
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(o.cursorAt && this._adjustOffsetFromHelper(o.cursorAt));
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//Set a containment if given in the options
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this._setContainment();
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//Trigger event + callbacks
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if (this._trigger("start", event) === false) {
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this._clear();
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return false;
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}
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//Recache the helper size
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this._cacheHelperProportions();
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//Prepare the droppable offsets
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if ($.ui.ddmanager && !o.dropBehaviour) {
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$.ui.ddmanager.prepareOffsets(this, event);
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}
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// Reset helper's right/bottom css if they're set and set explicit width/height instead
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// as this prevents resizing of elements with right/bottom set (see #7772)
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this._normalizeRightBottom();
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this._mouseDrag(event, true); //Execute the drag once - this causes the helper not to be visible before getting its correct position
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//If the ddmanager is used for droppables, inform the manager that dragging has started (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({});
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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 = $.ui.ddmanager.drop(this, event);
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}
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//if a drop comes from outside (a sortable)
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if (this.dropped) {
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dropped = this.dropped;
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this.dropped = false;
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}
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if ((this.options.revert === "invalid" && !dropped) || (this.options.revert === "valid" && dropped) || this.options.revert === true || ($.isFunction(this.options.revert) && this.options.revert.call(this.element, dropped))) {
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$(this.helper).animate(this.originalPosition, parseInt(this.options.revertDuration, 10), 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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} 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 (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, focus the element
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this.element.focus();
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}
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return $.ui.mouse.prototype._mouseUp.call(this, event);
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},
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cancel: function() {
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if (this.helper.is(".ui-draggable-dragging")) {
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this._mouseUp({});
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} else {
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this._clear();
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}
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return this;
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},
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_getHandle: function(event) {
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return this.options.handle ?
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!!$( 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.handleElement.addClass( "ui-draggable-handle" );
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},
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_removeHandleClassName: function() {
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this.handleElement.removeClass( "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 = $.isFunction( o.helper ),
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helper = helperIsFunction ?
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$( 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" ? this.element[0].parentNode : 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] && !(/(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 ($.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 following happened:
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// 1. The position of the helper is absolute, so it's position is calculated based on the 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 the document, which means that
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// the scroll is included in the initial calculation of the offset of the parent, and never recalculated upon drag
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if (this.cssPosition === "absolute" && this.scrollParent[0] !== document && $.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 ) + ( !scrollIsRootNode ? this.scrollParent.scrollTop() : 0 ),
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left: p.left - ( parseInt(this.helper.css( "left" ), 10) || 0 ) + ( !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() + $( window ).width() - this.helperProportions.width - this.margins.left,
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$( window ).scrollTop() + ( $( window ).height() || document.body.parentNode.scrollHeight ) - this.helperProportions.height - this.margins.top
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];
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return;
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}
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if ( o.containment === "document") {
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this.containment = [
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0,
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0,
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$( document ).width() - this.helperProportions.width - this.margins.left,
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( $( document ).height() || document.body.parentNode.scrollHeight ) - 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 ),
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( parseInt( c.css( "borderTopWidth" ), 10 ) || 0 ) + ( parseInt( c.css( "paddingTop" ), 10 ) || 0 ),
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( isUserScrollable ? Math.max( ce.scrollWidth, ce.offsetWidth ) : ce.offsetWidth ) -
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( parseInt( c.css( "borderRightWidth" ), 10 ) || 0 ) -
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( parseInt( c.css( "paddingRight" ), 10 ) || 0 ) -
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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: (
|
|
pos.top + // The absolute mouse position
|
|
this.offset.relative.top * mod + // Only for relative positioned nodes: Relative offset from element to offset parent
|
|
this.offset.parent.top * mod - // The offsetParent's offset without borders (offset + border)
|
|
( ( this.cssPosition === "fixed" ? -this.offset.scroll.top : ( scrollIsRootNode ? 0 : this.offset.scroll.top ) ) * mod)
|
|
),
|
|
left: (
|
|
pos.left + // The absolute mouse position
|
|
this.offset.relative.left * mod + // Only for relative positioned nodes: Relative offset from element to offset parent
|
|
this.offset.parent.left * mod - // The offsetParent's offset without borders (offset + border)
|
|
( ( 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: (
|
|
pageY - // The absolute mouse position
|
|
this.offset.click.top - // Click offset (relative to the element)
|
|
this.offset.relative.top - // Only for relative positioned nodes: Relative offset from element to offset parent
|
|
this.offset.parent.top + // The offsetParent's offset without borders (offset + border)
|
|
( this.cssPosition === "fixed" ? -this.offset.scroll.top : ( scrollIsRootNode ? 0 : this.offset.scroll.top ) )
|
|
),
|
|
left: (
|
|
pageX - // The absolute mouse position
|
|
this.offset.click.left - // Click offset (relative to the element)
|
|
this.offset.relative.left - // Only for relative positioned nodes: Relative offset from element to offset parent
|
|
this.offset.parent.left + // The offsetParent's offset without borders (offset + border)
|
|
( this.cssPosition === "fixed" ? -this.offset.scroll.left : ( scrollIsRootNode ? 0 : this.offset.scroll.left ) )
|
|
)
|
|
};
|
|
|
|
},
|
|
|
|
_clear: function() {
|
|
this.helper.removeClass("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();
|
|
}
|
|
},
|
|
|
|
_normalizeRightBottom: function() {
|
|
if ( this.options.axis !== "y" && this.helper.css( "right" ) !== "auto" ) {
|
|
this.helper.width( this.helper.width() );
|
|
this.helper.css( "right", "auto" );
|
|
}
|
|
if ( this.options.axis !== "x" && this.helper.css( "bottom" ) !== "auto" ) {
|
|
this.helper.height( this.helper.height() );
|
|
this.helper.css( "bottom", "auto" );
|
|
}
|
|
},
|
|
|
|
// 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) {
|
|
(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)) {
|
|
(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;
|
|
|
|
}));
|