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129 lines
3.3 KiB
129 lines
3.3 KiB
/**
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* @constructor Group
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* @param {Panel} contentPanel
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* @param {Panel} labelPanel
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* @param {Number | String} groupId
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* @param {Object} [options] Options to set initial property values
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* // TODO: describe available options
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* @extends Component
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*/
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function Group (contentPanel, labelPanel, groupId, options) {
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this.id = util.randomUUID();
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this.contentPanel = contentPanel;
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this.labelPanel = labelPanel;
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this.groupId = groupId;
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this.itemSet = null; // ItemSet
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this.options = options || {};
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this.options.top = 0;
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this.props = {
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label: {
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width: 0,
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height: 0
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}
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};
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this.top = 0;
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this.left = 0;
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this.width = 0;
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this.height = 0;
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}
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Group.prototype = new Component();
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// TODO: comment
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Group.prototype.setOptions = Component.prototype.setOptions;
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/**
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* Get the container element of the panel, which can be used by a child to
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* add its own widgets.
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* @returns {HTMLElement} container
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*/
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Group.prototype.getContainer = function () {
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return null;
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};
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/**
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* Set item set for the group. The group will create a view on the itemSet,
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* filtered by the groups id.
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* @param {DataSet | DataView} items
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*/
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Group.prototype.setItems = function setItems(items) {
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if (this.itemSet) {
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// remove current item set
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this.itemSet.hide();
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this.itemSet.setItems();
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this.contentPanel.removeChild(this.itemSet);
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this.itemSet = null;
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}
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if (items) {
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var groupId = this.groupId;
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var itemSetOptions = Object.create(this.options);
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this.itemSet = new ItemSet(itemSetOptions);
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if (this.range) this.itemSet.setRange(this.range);
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this.contentPanel.appendChild(this.itemSet);
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this.view = new DataView(items, {
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filter: function (item) {
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return item.group == groupId;
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}
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});
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this.itemSet.setItems(this.view);
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}
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};
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/**
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* Set range (start and end).
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* @param {Range | Object} range A Range or an object containing start and end.
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*/
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Group.prototype.setRange = function (range) {
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this.range = range;
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if (this.itemSet) this.itemSet.setRange(range);
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};
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/**
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* Set selected items by their id. Replaces the current selection.
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* Unknown id's are silently ignored.
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* @param {Array} [ids] An array with zero or more id's of the items to be
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* selected. If ids is an empty array, all items will be
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* unselected.
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*/
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Group.prototype.setSelection = function setSelection(ids) {
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if (this.itemSet) this.itemSet.setSelection(ids);
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};
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/**
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* Get the selected items by their id
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* @return {Array} ids The ids of the selected items
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*/
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Group.prototype.getSelection = function getSelection() {
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return this.itemSet ? this.itemSet.getSelection() : [];
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};
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/**
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* Repaint the group
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* @return {Boolean} changed
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*/
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Group.prototype.repaint = function repaint() {
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this.itemSet.repaint();
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this.top = this.itemSet ? this.itemSet.top : 0;
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this.height = this.itemSet ? this.itemSet.height : 0;
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// TODO: reckon with the height of the group label
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if (this.label) {
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// TODO: only update the labels width/height when the label is changed
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var inner = this.label.firstChild;
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this.props.label.width = inner.clientWidth;
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this.props.label.height = inner.clientHeight;
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}
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else {
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this.props.label.width = 0;
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this.props.label.height = 0;
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}
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};
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