104 lines
3.8 KiB
JavaScript
104 lines
3.8 KiB
JavaScript
/** module:dojo/dnd/Avatar **/
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define([
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"../_base/declare",
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"../_base/window",
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"../dom",
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"../dom-attr",
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"../dom-class",
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"../dom-construct",
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"../hccss",
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"../query"
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], function (declare, win, dom, domAttr, domClass, domConstruct, has, query) {
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/**
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* Object that represents transferred DnD items visually
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* @class module:dojo/dnd/Avatar
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*/
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return declare("dojo.dnd.Avatar", null, {
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/**
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* @param manager {module:dojo/dnd/Manager}
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*/
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constructor: function (manager) {
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this.manager = manager;
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this.construct();
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},
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/**
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* It is separate so it can be (dynamically) overwritten in case of need
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*/
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construct: function () {
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var a = domConstruct.create("table", {
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"class": "dojoDndAvatar",
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style: {
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position: "absolute",
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zIndex: "1999",
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margin: "0px"
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}
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}),
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source = this.manager.source, node,
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b = domConstruct.create("tbody", null, a),
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tr = domConstruct.create("tr", null, b),
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td = domConstruct.create("td", null, tr),
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k = Math.min(5, this.manager.nodes.length), i = 0;
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domConstruct.create("span", {
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innerHTML: source.generateText ? this._generateText() : ""
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}, td);
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// we have to set the opacity on IE only after the node is live
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domAttr.set(tr, {
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"class": "dojoDndAvatarHeader",
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style: {opacity: 0.9}
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});
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for (; i < k; ++i) {
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if (source.creator) {
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// create an avatar representation of the node
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node = source._normalizedCreator(source.getItem(this.manager.nodes[i].id).data, "avatar").node;
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} else {
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// or just clone the node and hope it works
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node = this.manager.nodes[i].cloneNode(true);
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if (node.tagName.toLowerCase() == "tr") {
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// insert extra table nodes
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var table = domConstruct.create("table"),
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tbody = domConstruct.create("tbody", null, table);
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tbody.appendChild(node);
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node = table;
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}
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}
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node.id = "";
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tr = domConstruct.create("tr", null, b);
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td = domConstruct.create("td", null, tr);
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td.appendChild(node);
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domAttr.set(tr, {
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"class": "dojoDndAvatarItem",
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style: {opacity: (9 - i) / 10}
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});
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}
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this.node = a;
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},
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/**
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* Destructor for the avatar; called to remove all references so it can be garbage-collected
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*/
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destroy: function () {
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domConstruct.destroy(this.node);
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this.node = false;
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},
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/**
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* updates the avatar to reflect the current DnD state
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*/
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update: function () {
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domClass.toggle(this.node, "dojoDndAvatarCanDrop", this.manager.canDropFlag);
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// replace text
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query(("tr.dojoDndAvatarHeader td span" + (has("highcontrast") ? " span" : "")), this.node).forEach(
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function (node) {
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node.innerHTML = this.manager.source.generateText ? this._generateText() : "";
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}, this);
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},
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/**
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* Generates a proper text to reflect copying or moving of items
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* @returns {string}
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* @private
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*/
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_generateText: function () {
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return this.manager.nodes.length.toString();
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}
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});
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}); |