// [P] use whole checkbox cell to multiselect, not only the checkbox
checkSelector: '.x-grid-cell-row-checker',
+ // TODO: remove all optimizations below to an override for parent 'Ext.selection.Model' ??
+
// [ P: optimized to remove all records at once as single remove is O(n^3) slow ]
// records can be an index, a record or an array of records
doDeselect: function(records, suppressEvent) {
me.resumeChanges();
// fire selchange if there was a change and there is no suppressEvent flag
me.maybeFireSelectionChange(records.length > 0 && !suppressEvent);
- return records.length > 0;
+ return records.length;
+ },
+
+
+ doMultiSelect: function(records, keepExisting, suppressEvent) {
+ var me = this,
+ selected = me.selected,
+ change = false,
+ result, i, len, record, commit;
+
+ if (me.locked) {
+ return;
+ }
+
+ records = !Ext.isArray(records) ? [records] : records;
+ len = records.length;
+ if (!keepExisting && selected.getCount() > 0) {
+ result = me.deselectDuringSelect(records, suppressEvent);
+ if (me.destroyed) {
+ return;
+ }
+ if (result[0]) {
+ // We had a failure during selection, so jump out
+ // Fire selection change if we did deselect anything
+ me.maybeFireSelectionChange(result[1] > 0 && !suppressEvent);
+ return;
+ } else {
+ // Means something has been deselected, so we've had a change
+ change = result[1] > 0;
+ }
+ }
+
+ let gotBlocked, blockedRecords = [];
+ commit = function() {
+ if (!selected.getCount()) {
+ me.selectionStart = record;
+ }
+ gotBlocked = false;
+ change = true;
+ };
+
+ for (i = 0; i < len; i++) {
+ record = records[i];
+ if (me.isSelected(record)) {
+ continue;
+ }
+
+ gotBlocked = true;
+ me.onSelectChange(record, true, suppressEvent, commit);
+ if (me.destroyed) {
+ return;
+ }
+ if (gotBlocked) {
+ blockedRecords.push(record);
+ }
+ }
+ if (blockedRecords.length > 0) {
+ records.remove(blockedRecords);
+ }
+ selected.add(records);
+ me.lastSelected = record;
+
+ // fire selchange if there was a change and there is no suppressEvent flag
+ me.maybeFireSelectionChange(change && !suppressEvent);
+ },
+ deselectDuringSelect: function(toSelect, suppressEvent) {
+ var me = this,
+ selected = me.selected.getRange(),
+ changed = 0,
+ failed = false;
+ // Prevent selection change events from firing, will happen during select
+ me.suspendChanges();
+ me.deselectingDuringSelect = true;
+ let toDeselect = selected.filter(item => !Ext.Array.contains(toSelect, item));
+ if (toDeselect.length > 0) {
+ changed = me.doDeselect(toDeselect, suppressEvent);
+ if (!changed) {
+ failed = true;
+ }
+ if (me.destroyed) {
+ failed = true;
+ changed = 0;
+ }
+ }
+ me.deselectingDuringSelect = false;
+ me.resumeChanges();
+ return [
+ failed,
+ changed,
+ ];
},
});