--- /dev/null
+/**
+ * @class Ext.data.NodeStore
+ * @extends Ext.data.AbstractStore
+ * Node Store
+ * @ignore
+ */
+Ext.define('Ext.data.NodeStore', {
+ extend: 'Ext.data.Store',
+ alias: 'store.node',
+ requires: ['Ext.data.NodeInterface'],
+
+ /**
+ * @cfg {Ext.data.Record} node The Record you want to bind this Store to. Note that
+ * this record will be decorated with the Ext.data.NodeInterface if this is not the
+ * case yet.
+ */
+ node: null,
+
+ /**
+ * @cfg {Boolean} recursive Set this to true if you want this NodeStore to represent
+ * all the descendents of the node in its flat data collection. This is useful for
+ * rendering a tree structure to a DataView and is being used internally by
+ * the TreeView. Any records that are moved, removed, inserted or appended to the
+ * node at any depth below the node this store is bound to will be automatically
+ * updated in this Store's internal flat data structure.
+ */
+ recursive: false,
+
+ /**
+ * @cfg {Boolean} rootVisible <tt>false</tt> to not include the root node in this Stores collection (defaults to <tt>true</tt>)
+ */
+ rootVisible: false,
+
+ constructor: function(config) {
+ var me = this,
+ node;
+
+ config = config || {};
+ Ext.apply(me, config);
+
+ //<debug>
+ if (Ext.isDefined(me.proxy)) {
+ Ext.Error.raise("A NodeStore cannot be bound to a proxy. Instead bind it to a record " +
+ "decorated with the NodeInterface by setting the node config.");
+ }
+ //</debug>
+
+ config.proxy = {type: 'proxy'};
+ me.callParent([config]);
+
+ me.addEvents('expand', 'collapse', 'beforeexpand', 'beforecollapse');
+
+ node = me.node;
+ if (node) {
+ me.node = null;
+ me.setNode(node);
+ }
+ },
+
+ setNode: function(node) {
+ var me = this;
+
+ if (me.node && me.node != node) {
+ // We want to unbind our listeners on the old node
+ me.mun(me.node, {
+ expand: me.onNodeExpand,
+ collapse: me.onNodeCollapse,
+ append: me.onNodeAppend,
+ insert: me.onNodeInsert,
+ remove: me.onNodeRemove,
+ sort: me.onNodeSort,
+ scope: me
+ });
+ me.node = null;
+ }
+
+ if (node) {
+ Ext.data.NodeInterface.decorate(node);
+ me.removeAll();
+ if (me.rootVisible) {
+ me.add(node);
+ }
+ me.mon(node, {
+ expand: me.onNodeExpand,
+ collapse: me.onNodeCollapse,
+ append: me.onNodeAppend,
+ insert: me.onNodeInsert,
+ remove: me.onNodeRemove,
+ sort: me.onNodeSort,
+ scope: me
+ });
+ me.node = node;
+ if (node.isExpanded() && node.isLoaded()) {
+ me.onNodeExpand(node, node.childNodes, true);
+ }
+ }
+ },
+
+ onNodeSort: function(node, childNodes) {
+ var me = this;
+
+ if ((me.indexOf(node) !== -1 || (node === me.node && !me.rootVisible) && node.isExpanded())) {
+ me.onNodeCollapse(node, childNodes, true);
+ me.onNodeExpand(node, childNodes, true);
+ }
+ },
+
+ onNodeExpand: function(parent, records, suppressEvent) {
+ var me = this,
+ insertIndex = me.indexOf(parent) + 1,
+ ln = records ? records.length : 0,
+ i, record;
+
+ if (!me.recursive && parent !== me.node) {
+ return;
+ }
+
+ if (!me.isVisible(parent)) {
+ return;
+ }
+
+ if (!suppressEvent && me.fireEvent('beforeexpand', parent, records, insertIndex) === false) {
+ return;
+ }
+
+ if (ln) {
+ me.insert(insertIndex, records);
+ for (i = 0; i < ln; i++) {
+ record = records[i];
+ if (record.isExpanded()) {
+ if (record.isLoaded()) {
+ // Take a shortcut
+ me.onNodeExpand(record, record.childNodes, true);
+ }
+ else {
+ record.set('expanded', false);
+ record.expand();
+ }
+ }
+ }
+ }
+
+ if (!suppressEvent) {
+ me.fireEvent('expand', parent, records);
+ }
+ },
+
+ onNodeCollapse: function(parent, records, suppressEvent) {
+ var me = this,
+ ln = records.length,
+ collapseIndex = me.indexOf(parent) + 1,
+ i, record;
+
+ if (!me.recursive && parent !== me.node) {
+ return;
+ }
+
+ if (!suppressEvent && me.fireEvent('beforecollapse', parent, records, collapseIndex) === false) {
+ return;
+ }
+
+ for (i = 0; i < ln; i++) {
+ record = records[i];
+ me.remove(record);
+ if (record.isExpanded()) {
+ me.onNodeCollapse(record, record.childNodes, true);
+ }
+ }
+
+ if (!suppressEvent) {
+ me.fireEvent('collapse', parent, records, collapseIndex);
+ }
+ },
+
+ onNodeAppend: function(parent, node, index) {
+ var me = this,
+ refNode, sibling;
+
+ if (me.isVisible(node)) {
+ if (index === 0) {
+ refNode = parent;
+ } else {
+ sibling = node.previousSibling;
+ while (sibling.isExpanded() && sibling.lastChild) {
+ sibling = sibling.lastChild;
+ }
+ refNode = sibling;
+ }
+ me.insert(me.indexOf(refNode) + 1, node);
+ if (!node.isLeaf() && node.isExpanded()) {
+ if (node.isLoaded()) {
+ // Take a shortcut
+ me.onNodeExpand(node, node.childNodes, true);
+ }
+ else {
+ node.set('expanded', false);
+ node.expand();
+ }
+ }
+ }
+ },
+
+ onNodeInsert: function(parent, node, refNode) {
+ var me = this,
+ index = this.indexOf(refNode);
+
+ if (index != -1 && me.isVisible(node)) {
+ me.insert(index, node);
+ if (!node.isLeaf() && node.isExpanded()) {
+ if (node.isLoaded()) {
+ // Take a shortcut
+ me.onNodeExpand(node, node.childNodes, true);
+ }
+ else {
+ node.set('expanded', false);
+ node.expand();
+ }
+ }
+ }
+ },
+
+ onNodeRemove: function(parent, node, index) {
+ var me = this;
+ if (me.indexOf(node) != -1) {
+ if (!node.isLeaf() && node.isExpanded()) {
+ me.onNodeCollapse(node, node.childNodes, true);
+ }
+ me.remove(node);
+ }
+ },
+
+ isVisible: function(node) {
+ var parent = node.parentNode;
+ while (parent) {
+ if (parent === this.node && !this.rootVisible && parent.isExpanded()) {
+ return true;
+ }
+
+ if (this.indexOf(parent) === -1 || !parent.isExpanded()) {
+ return false;
+ }
+
+ parent = parent.parentNode;
+ }
+ return true;
+ }
+});
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git.ithinksw.org / extjs.git / blobdiff