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options) { + + // Cutting the mustard const fakeEl = document.createElement("fakeel"); + const cuttingTheMustard = 'querySelector' in document && 'addEventListener' in document && 'classList' in fakeEl; + if (!cuttingTheMustard) console.error('init: Your browser doesn\'nt support Choices'); + const userOptions = options || {}; // If there are multiple elements, create a new instance @@ -83,9 +88,6 @@ export class Choices { // Create data store this.store = createStore(rootReducer); - // Cutting the mustard - this.supports = 'querySelector' in document && 'addEventListener' in document && 'classList' in fakeEl; - // Retrieve triggering element (i.e. element with 'data-choice' trigger) this.passedElement = isType('String', element) ? document.querySelector(element) : element; @@ -135,7 +137,6 @@ export class Choices { } /* Event handling */ - handleSelectAll() { if(this.options.removeItems && !this.input.value && this.options.selectAll && this.input === document.activeElement) { this.selectAll(this.list.children); @@ -191,7 +192,7 @@ export class Choices { // If editing the last item is allowed and there are not other selected items, // we can edit the item value. Otherwise if we can remove items, remove all selected items - if(this.options.editItems && !hasSelectedItems) { + if(this.options.editItems && !hasSelectedItems && lastItem) { this.input.value = lastItem.value; this.removeItem(lastItem); } else { @@ -200,23 +201,23 @@ export class Choices { } }; - handleClick(activeItems, target) { + handleClick(activeItems, target, shiftKey) { if(this.options.removeItems && target) { const passedId = target.getAttribute('data-choice-id'); // We only want to select one item with a click // so we deselect any items that aren't the target + // unless shift is being pressed activeItems.forEach((item) => { if(item.id === parseInt(passedId) && !item.selected) { this.selectItem(item); - } else { + } else if(!shiftKey) { this.deselectItem(item); } }); } } - /** * Handle keydown event * @param {Object} e Event @@ -263,6 +264,8 @@ export class Choices { * @return */ onClick(e) { + const shiftKey = e.shiftKey; + if(this.dropdown) { this.toggleDropdown(); } @@ -277,7 +280,7 @@ export class Choices { const activeItems = this.getItemsFilteredByActive(); const target = e.target; - this.handleClick(activeItems, target); + this.handleClick(activeItems, target, shiftKey); } else if(e.target.hasAttribute('data-choice-selectable')) { const options = this.getOptions(); @@ -869,7 +872,6 @@ export class Choices { * @return */ init(callback = this.options.callbackOnInit) { - if (!this.supports) console.error('init: Your browser doesn\'nt support shit'); this.initialised = true; // Render input