mirror of
https://github.com/jquery/jquery-ui.git
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288 lines
7.2 KiB
JavaScript
288 lines
7.2 KiB
JavaScript
/*!
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* jQuery UI Selectable @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: Selectable
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//>>group: Interactions
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//>>description: Allows groups of elements to be selected with the mouse.
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//>>docs: http://api.jqueryui.com/selectable/
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//>>demos: http://jqueryui.com/selectable/
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//>>css.structure: ../themes/base/selectable.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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"./mouse",
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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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return $.widget("ui.selectable", $.ui.mouse, {
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version: "@VERSION",
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options: {
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appendTo: "body",
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autoRefresh: true,
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distance: 0,
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filter: "*",
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tolerance: "touch",
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// callbacks
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selected: null,
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selecting: null,
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start: null,
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stop: null,
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unselected: null,
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unselecting: null
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},
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_create: function() {
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var that = this;
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this._addClass( "ui-selectable" );
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this.dragged = false;
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// cache selectee children based on filter
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this.refresh = function() {
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that.selectees = $(that.options.filter, that.element[0]);
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that._addClass( that.selectees, "ui-selectee" );
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that.selectees.each(function() {
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var $this = $(this),
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pos = $this.offset();
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$.data(this, "selectable-item", {
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element: this,
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$element: $this,
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left: pos.left,
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top: pos.top,
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right: pos.left + $this.outerWidth(),
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bottom: pos.top + $this.outerHeight(),
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startselected: false,
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selected: $this.hasClass("ui-selected"),
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selecting: $this.hasClass("ui-selecting"),
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unselecting: $this.hasClass("ui-unselecting")
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});
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});
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};
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this.refresh();
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this._mouseInit();
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this.helper = $("<div>");
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this._addClass( this.helper, "ui-selectable-helper" );
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},
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_destroy: function() {
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this.selectees.removeData("selectable-item");
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this._mouseDestroy();
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},
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_mouseStart: function(event) {
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var that = this,
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options = this.options;
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this.opos = [ event.pageX, event.pageY ];
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if (this.options.disabled) {
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return;
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}
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this.selectees = $(options.filter, this.element[0]);
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this._trigger("start", event);
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$(options.appendTo).append(this.helper);
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// position helper (lasso)
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this.helper.css({
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"left": event.pageX,
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"top": event.pageY,
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"width": 0,
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"height": 0
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});
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if (options.autoRefresh) {
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this.refresh();
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}
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this.selectees.filter(".ui-selected").each(function() {
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var selectee = $.data(this, "selectable-item");
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selectee.startselected = true;
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if (!event.metaKey && !event.ctrlKey) {
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that._removeClass( selectee.$element, "ui-selected" );
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selectee.selected = false;
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that._addClass( selectee.$element, "ui-unselecting" );
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selectee.unselecting = true;
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// selectable UNSELECTING callback
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that._trigger("unselecting", event, {
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unselecting: selectee.element
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});
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}
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});
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$(event.target).parents().addBack().each(function() {
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var doSelect,
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selectee = $.data(this, "selectable-item");
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if (selectee) {
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doSelect = (!event.metaKey && !event.ctrlKey) || !selectee.$element.hasClass("ui-selected");
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that._removeClass( selectee.$element, doSelect ? "ui-unselecting" : "ui-selected" )
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._addClass( selectee.$element, doSelect ? "ui-selecting" : "ui-unselecting" );
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selectee.unselecting = !doSelect;
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selectee.selecting = doSelect;
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selectee.selected = doSelect;
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// selectable (UN)SELECTING callback
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if (doSelect) {
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that._trigger("selecting", event, {
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selecting: selectee.element
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});
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} else {
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that._trigger("unselecting", event, {
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unselecting: selectee.element
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});
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}
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return false;
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}
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});
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},
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_mouseDrag: function(event) {
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this.dragged = true;
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if (this.options.disabled) {
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return;
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}
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var tmp,
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that = this,
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options = this.options,
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x1 = this.opos[0],
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y1 = this.opos[1],
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x2 = event.pageX,
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y2 = event.pageY;
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if (x1 > x2) { tmp = x2; x2 = x1; x1 = tmp; }
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if (y1 > y2) { tmp = y2; y2 = y1; y1 = tmp; }
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this.helper.css({ left: x1, top: y1, width: x2 - x1, height: y2 - y1 });
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this.selectees.each(function() {
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var selectee = $.data(this, "selectable-item"),
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hit = false;
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//prevent helper from being selected if appendTo: selectable
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if (!selectee || selectee.element === that.element[0]) {
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return;
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}
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if (options.tolerance === "touch") {
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hit = ( !(selectee.left > x2 || selectee.right < x1 || selectee.top > y2 || selectee.bottom < y1) );
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} else if (options.tolerance === "fit") {
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hit = (selectee.left > x1 && selectee.right < x2 && selectee.top > y1 && selectee.bottom < y2);
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}
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if (hit) {
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// SELECT
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if (selectee.selected) {
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that._removeClass( selectee.$element, "ui-selected" );
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selectee.selected = false;
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}
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if (selectee.unselecting) {
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that._removeClass( selectee.$element, "ui-unselecting" );
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selectee.unselecting = false;
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}
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if (!selectee.selecting) {
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that._addClass( selectee.$element, "ui-selecting" );
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selectee.selecting = true;
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// selectable SELECTING callback
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that._trigger("selecting", event, {
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selecting: selectee.element
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});
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}
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} else {
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// UNSELECT
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if (selectee.selecting) {
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if ((event.metaKey || event.ctrlKey) && selectee.startselected) {
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that._removeClass( selectee.$element, "ui-selecting" );
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selectee.selecting = false;
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that._addClass( selectee.$element, "ui-selected" );
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selectee.selected = true;
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} else {
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that._removeClass( selectee.$element, "ui-selecting" );
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selectee.selecting = false;
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if (selectee.startselected) {
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that._addClass( selectee.$element, "ui-unselecting" );
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selectee.unselecting = true;
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}
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// selectable UNSELECTING callback
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that._trigger("unselecting", event, {
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unselecting: selectee.element
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});
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}
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}
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if (selectee.selected) {
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if (!event.metaKey && !event.ctrlKey && !selectee.startselected) {
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that._removeClass( selectee.$element, "ui-selected" );
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selectee.selected = false;
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that._addClass( selectee.$element, "ui-unselecting" );
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selectee.unselecting = true;
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// selectable UNSELECTING callback
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that._trigger("unselecting", event, {
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unselecting: selectee.element
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});
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}
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}
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}
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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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var that = this;
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this.dragged = false;
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$(".ui-unselecting", this.element[0]).each(function() {
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var selectee = $.data(this, "selectable-item");
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that._removeClass( selectee.$element, "ui-unselecting" );
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selectee.unselecting = false;
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selectee.startselected = false;
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that._trigger("unselected", event, {
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unselected: selectee.element
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});
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});
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$(".ui-selecting", this.element[0]).each(function() {
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var selectee = $.data(this, "selectable-item");
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that._removeClass( selectee.$element, "ui-selecting" )
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._addClass( selectee.$element, "ui-selected" );
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selectee.selecting = false;
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selectee.selected = true;
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selectee.startselected = true;
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that._trigger("selected", event, {
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selected: selectee.element
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});
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});
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this._trigger("stop", event);
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this.helper.remove();
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return false;
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}
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});
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}));
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