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keksAccountGUI/node_modulesOLD/vuetify/lib/components/VSelect/VSelect.js
2019-08-11 20:48:02 +02:00

712 lines
No EOL
20 KiB
JavaScript

// Styles
import "../../../src/components/VTextField/VTextField.sass";
import "../../../src/components/VSelect/VSelect.sass"; // Components
import VChip from '../VChip';
import VMenu from '../VMenu';
import VSelectList from './VSelectList'; // Extensions
import VTextField from '../VTextField/VTextField'; // Mixins
import Comparable from '../../mixins/comparable';
import Filterable from '../../mixins/filterable'; // Directives
import ClickOutside from '../../directives/click-outside'; // Utilities
import { getPropertyFromItem, keyCodes } from '../../util/helpers';
import { consoleError } from '../../util/console'; // Types
import mixins from '../../util/mixins';
export const defaultMenuProps = {
closeOnClick: false,
closeOnContentClick: false,
disableKeys: true,
openOnClick: false,
maxHeight: 300
};
const baseMixins = mixins(VTextField, Comparable, Filterable);
/* @vue/component */
export default baseMixins.extend().extend({
name: 'v-select',
directives: {
ClickOutside
},
props: {
appendIcon: {
type: String,
default: '$vuetify.icons.dropdown'
},
attach: {
default: false
},
cacheItems: Boolean,
chips: Boolean,
clearable: Boolean,
deletableChips: Boolean,
dense: Boolean,
eager: Boolean,
hideSelected: Boolean,
items: {
type: Array,
default: () => []
},
itemColor: {
type: String,
default: 'primary'
},
itemDisabled: {
type: [String, Array, Function],
default: 'disabled'
},
itemText: {
type: [String, Array, Function],
default: 'text'
},
itemValue: {
type: [String, Array, Function],
default: 'value'
},
menuProps: {
type: [String, Array, Object],
default: () => defaultMenuProps
},
multiple: Boolean,
openOnClear: Boolean,
returnObject: Boolean,
smallChips: Boolean
},
data() {
return {
cachedItems: this.cacheItems ? this.items : [],
content: null,
isBooted: false,
isMenuActive: false,
lastItem: 20,
// As long as a value is defined, show it
// Otherwise, check if multiple
// to determine which default to provide
lazyValue: this.value !== undefined ? this.value : this.multiple ? [] : undefined,
selectedIndex: -1,
selectedItems: [],
keyboardLookupPrefix: '',
keyboardLookupLastTime: 0
};
},
computed: {
/* All items that the select has */
allItems() {
return this.filterDuplicates(this.cachedItems.concat(this.items));
},
classes() {
return { ...VTextField.options.computed.classes.call(this),
'v-select': true,
'v-select--chips': this.hasChips,
'v-select--chips--small': this.smallChips,
'v-select--is-menu-active': this.isMenuActive
};
},
/* Used by other components to overwrite */
computedItems() {
return this.allItems;
},
computedOwns() {
return `list-${this._uid}`;
},
counterValue() {
return this.multiple ? this.selectedItems.length : (this.getText(this.selectedItems[0]) || '').toString().length;
},
directives() {
return this.isFocused ? [{
name: 'click-outside',
value: this.blur,
args: {
closeConditional: this.closeConditional
}
}] : undefined;
},
dynamicHeight() {
return 'auto';
},
hasChips() {
return this.chips || this.smallChips;
},
hasSlot() {
return Boolean(this.hasChips || this.$scopedSlots.selection);
},
isDirty() {
return this.selectedItems.length > 0;
},
listData() {
const scopeId = this.$vnode && this.$vnode.context.$options._scopeId;
const attrs = scopeId ? {
[scopeId]: true
} : {};
return {
attrs: { ...attrs,
id: this.computedOwns
},
props: {
action: this.multiple,
color: this.itemColor,
dense: this.dense,
hideSelected: this.hideSelected,
items: this.virtualizedItems,
noDataText: this.$vuetify.lang.t(this.noDataText),
selectedItems: this.selectedItems,
itemDisabled: this.itemDisabled,
itemValue: this.itemValue,
itemText: this.itemText
},
on: {
select: this.selectItem
},
scopedSlots: {
item: this.$scopedSlots.item
}
};
},
staticList() {
if (this.$slots['no-data'] || this.$slots['prepend-item'] || this.$slots['append-item']) {
consoleError('assert: staticList should not be called if slots are used');
}
return this.$createElement(VSelectList, this.listData);
},
virtualizedItems() {
return this.$_menuProps.auto ? this.computedItems : this.computedItems.slice(0, this.lastItem);
},
menuCanShow: () => true,
$_menuProps() {
let normalisedProps = typeof this.menuProps === 'string' ? this.menuProps.split(',') : this.menuProps;
if (Array.isArray(normalisedProps)) {
normalisedProps = normalisedProps.reduce((acc, p) => {
acc[p.trim()] = true;
return acc;
}, {});
}
return { ...defaultMenuProps,
eager: this.eager,
value: this.menuCanShow && this.isMenuActive,
nudgeBottom: normalisedProps.offsetY ? 1 : 0,
...normalisedProps
};
}
},
watch: {
internalValue(val) {
this.initialValue = val;
this.setSelectedItems();
},
isBooted() {
this.$nextTick(() => {
if (this.content && this.content.addEventListener) {
this.content.addEventListener('scroll', this.onScroll, false);
}
});
},
isMenuActive(val) {
this.$nextTick(() => this.onMenuActiveChange(val));
if (!val) return;
this.isBooted = true;
},
items: {
immediate: true,
handler(val) {
if (this.cacheItems) {
// Breaks vue-test-utils if
// this isn't calculated
// on the next tick
this.$nextTick(() => {
this.cachedItems = this.filterDuplicates(this.cachedItems.concat(val));
});
}
this.setSelectedItems();
}
}
},
mounted() {
this.content = this.$refs.menu && this.$refs.menu.$refs.content;
},
methods: {
/** @public */
blur(e) {
VTextField.options.methods.blur.call(this, e);
this.isMenuActive = false;
this.isFocused = false;
this.selectedIndex = -1;
},
/** @public */
activateMenu() {
if (this.disabled || this.readonly || this.isMenuActive) return;
this.isMenuActive = true;
},
clearableCallback() {
this.setValue(this.multiple ? [] : undefined);
this.$nextTick(() => this.$refs.input && this.$refs.input.focus());
if (this.openOnClear) this.isMenuActive = true;
},
closeConditional(e) {
return (// Click originates from outside the menu content
this.content && !this.content.contains(e.target) && // Click originates from outside the element
this.$el && !this.$el.contains(e.target) && e.target !== this.$el
);
},
filterDuplicates(arr) {
const uniqueValues = new Map();
for (let index = 0; index < arr.length; ++index) {
const item = arr[index];
const val = this.getValue(item); // TODO: comparator
!uniqueValues.has(val) && uniqueValues.set(val, item);
}
return Array.from(uniqueValues.values());
},
findExistingIndex(item) {
const itemValue = this.getValue(item);
return (this.internalValue || []).findIndex(i => this.valueComparator(this.getValue(i), itemValue));
},
genChipSelection(item, index) {
const isDisabled = this.disabled || this.readonly || this.getDisabled(item);
return this.$createElement(VChip, {
staticClass: 'v-chip--select',
attrs: {
tabindex: -1
},
props: {
close: this.deletableChips && !isDisabled,
disabled: isDisabled,
inputValue: index === this.selectedIndex,
small: this.smallChips
},
on: {
click: e => {
if (isDisabled) return;
e.stopPropagation();
this.selectedIndex = index;
},
focus,
'click:close': () => this.onChipInput(item)
},
key: JSON.stringify(this.getValue(item))
}, this.getText(item));
},
genCommaSelection(item, index, last) {
const color = index === this.selectedIndex && this.color;
const isDisabled = this.disabled || this.getDisabled(item);
return this.$createElement('div', this.setTextColor(color, {
staticClass: 'v-select__selection v-select__selection--comma',
class: {
'v-select__selection--disabled': isDisabled
},
key: JSON.stringify(this.getValue(item))
}), `${this.getText(item)}${last ? '' : ', '}`);
},
genDefaultSlot() {
const selections = this.genSelections();
const input = this.genInput(); // If the return is an empty array
// push the input
if (Array.isArray(selections)) {
selections.push(input); // Otherwise push it into children
} else {
selections.children = selections.children || [];
selections.children.push(input);
}
return [this.genFieldset(), this.$createElement('div', {
staticClass: 'v-select__slot',
directives: this.directives
}, [this.genLabel(), this.prefix ? this.genAffix('prefix') : null, selections, this.suffix ? this.genAffix('suffix') : null, this.genClearIcon(), this.genIconSlot()]), this.genMenu(), this.genProgress()];
},
genInput() {
const input = VTextField.options.methods.genInput.call(this);
input.data.domProps.value = null;
input.data.attrs.readonly = true;
input.data.attrs.type = 'text';
input.data.attrs['aria-readonly'] = true;
input.data.on.keypress = this.onKeyPress;
return input;
},
genInputSlot() {
const render = VTextField.options.methods.genInputSlot.call(this);
render.data.attrs = { ...render.data.attrs,
role: 'button',
'aria-haspopup': 'listbox',
'aria-expanded': String(this.isMenuActive),
'aria-owns': this.computedOwns
};
return render;
},
genList() {
// If there's no slots, we can use a cached VNode to improve performance
if (this.$slots['no-data'] || this.$slots['prepend-item'] || this.$slots['append-item']) {
return this.genListWithSlot();
} else {
return this.staticList;
}
},
genListWithSlot() {
const slots = ['prepend-item', 'no-data', 'append-item'].filter(slotName => this.$slots[slotName]).map(slotName => this.$createElement('template', {
slot: slotName
}, this.$slots[slotName])); // Requires destructuring due to Vue
// modifying the `on` property when passed
// as a referenced object
return this.$createElement(VSelectList, { ...this.listData
}, slots);
},
genMenu() {
const props = this.$_menuProps;
props.activator = this.$refs['input-slot']; // Attach to root el so that
// menu covers prepend/append icons
if ( // TODO: make this a computed property or helper or something
this.attach === '' || // If used as a boolean prop (<v-menu attach>)
this.attach === true || // If bound to a boolean (<v-menu :attach="true">)
this.attach === 'attach' // If bound as boolean prop in pug (v-menu(attach))
) {
props.attach = this.$el;
} else {
props.attach = this.attach;
}
return this.$createElement(VMenu, {
attrs: {
role: undefined
},
props,
on: {
input: val => {
this.isMenuActive = val;
this.isFocused = val;
}
},
ref: 'menu'
}, [this.genList()]);
},
genSelections() {
let length = this.selectedItems.length;
const children = new Array(length);
let genSelection;
if (this.$scopedSlots.selection) {
genSelection = this.genSlotSelection;
} else if (this.hasChips) {
genSelection = this.genChipSelection;
} else {
genSelection = this.genCommaSelection;
}
while (length--) {
children[length] = genSelection(this.selectedItems[length], length, length === children.length - 1);
}
return this.$createElement('div', {
staticClass: 'v-select__selections'
}, children);
},
genSlotSelection(item, index) {
return this.$scopedSlots.selection({
attrs: {
class: 'v-chip--select'
},
parent: this,
item,
index,
select: e => {
e.stopPropagation();
this.selectedIndex = index;
},
selected: index === this.selectedIndex,
disabled: this.disabled || this.readonly
});
},
getMenuIndex() {
return this.$refs.menu ? this.$refs.menu.listIndex : -1;
},
getDisabled(item) {
return getPropertyFromItem(item, this.itemDisabled, false);
},
getText(item) {
return getPropertyFromItem(item, this.itemText, item);
},
getValue(item) {
return getPropertyFromItem(item, this.itemValue, this.getText(item));
},
onBlur(e) {
e && this.$emit('blur', e);
},
onChipInput(item) {
if (this.multiple) this.selectItem(item);else this.setValue(null); // If all items have been deleted,
// open `v-menu`
if (this.selectedItems.length === 0) {
this.isMenuActive = true;
} else {
this.isMenuActive = false;
}
this.selectedIndex = -1;
},
onClick() {
if (this.isDisabled) return;
this.isMenuActive = true;
if (!this.isFocused) {
this.isFocused = true;
this.$emit('focus');
}
},
onEscDown(e) {
e.preventDefault();
if (this.isMenuActive) {
e.stopPropagation();
this.isMenuActive = false;
}
},
onKeyPress(e) {
if (this.multiple) return;
const KEYBOARD_LOOKUP_THRESHOLD = 1000; // milliseconds
const now = performance.now();
if (now - this.keyboardLookupLastTime > KEYBOARD_LOOKUP_THRESHOLD) {
this.keyboardLookupPrefix = '';
}
this.keyboardLookupPrefix += e.key.toLowerCase();
this.keyboardLookupLastTime = now;
const index = this.allItems.findIndex(item => {
const text = (this.getText(item) || '').toString();
return text.toLowerCase().startsWith(this.keyboardLookupPrefix);
});
const item = this.allItems[index];
if (index !== -1) {
this.setValue(this.returnObject ? item : this.getValue(item));
setTimeout(() => this.setMenuIndex(index));
}
},
onKeyDown(e) {
const keyCode = e.keyCode;
const menu = this.$refs.menu; // If enter, space, open menu
if ([keyCodes.enter, keyCodes.space].includes(keyCode)) this.activateMenu();
if (!menu) return; // If menu is active, allow default
// listIndex change from menu
if (this.isMenuActive && keyCode !== keyCodes.tab) {
menu.changeListIndex(e);
} // If menu is not active, up and down can do
// one of 2 things. If multiple, opens the
// menu, if not, will cycle through all
// available options
if (!this.isMenuActive && [keyCodes.up, keyCodes.down].includes(keyCode)) return this.onUpDown(e); // If escape deactivate the menu
if (keyCode === keyCodes.esc) return this.onEscDown(e); // If tab - select item or close menu
if (keyCode === keyCodes.tab) return this.onTabDown(e); // If space preventDefault
if (keyCode === keyCodes.space) return this.onSpaceDown(e);
},
onMenuActiveChange(val) {
// If menu is closing and mulitple
// or menuIndex is already set
// skip menu index recalculation
if (this.multiple && !val || this.getMenuIndex() > -1) return;
const menu = this.$refs.menu;
if (!menu || !this.isDirty) return; // When menu opens, set index of first active item
for (let i = 0; i < menu.tiles.length; i++) {
if (menu.tiles[i].getAttribute('aria-selected') === 'true') {
this.setMenuIndex(i);
break;
}
}
},
onMouseUp(e) {
if (this.hasMouseDown && e.which !== 3) {
const appendInner = this.$refs['append-inner']; // If append inner is present
// and the target is itself
// or inside, toggle menu
if (this.isMenuActive && appendInner && (appendInner === e.target || appendInner.contains(e.target))) {
this.$nextTick(() => this.isMenuActive = !this.isMenuActive); // If user is clicking in the container
// and field is enclosed, activate it
} else if (this.isEnclosed && !this.isDisabled) {
this.isMenuActive = true;
}
}
VTextField.options.methods.onMouseUp.call(this, e);
},
onScroll() {
if (!this.isMenuActive) {
requestAnimationFrame(() => this.content.scrollTop = 0);
} else {
if (this.lastItem >= this.computedItems.length) return;
const showMoreItems = this.content.scrollHeight - (this.content.scrollTop + this.content.clientHeight) < 200;
if (showMoreItems) {
this.lastItem += 20;
}
}
},
onSpaceDown(e) {
e.preventDefault();
},
onTabDown(e) {
const menu = this.$refs.menu;
if (!menu) return;
const activeTile = menu.activeTile; // An item that is selected by
// menu-index should toggled
if (!this.multiple && activeTile && this.isMenuActive) {
e.preventDefault();
e.stopPropagation();
activeTile.click();
} else {
// If we make it here,
// the user has no selected indexes
// and is probably tabbing out
this.blur(e);
}
},
onUpDown(e) {
const menu = this.$refs.menu;
if (!menu) return;
e.preventDefault(); // Multiple selects do not cycle their value
// when pressing up or down, instead activate
// the menu
if (this.multiple) return this.activateMenu();
const keyCode = e.keyCode; // Cycle through available values to achieve
// select native behavior
menu.getTiles();
keyCodes.up === keyCode ? menu.prevTile() : menu.nextTile();
menu.activeTile && menu.activeTile.click();
},
selectItem(item) {
if (!this.multiple) {
this.setValue(this.returnObject ? item : this.getValue(item));
this.isMenuActive = false;
} else {
const internalValue = (this.internalValue || []).slice();
const i = this.findExistingIndex(item);
i !== -1 ? internalValue.splice(i, 1) : internalValue.push(item);
this.setValue(internalValue.map(i => {
return this.returnObject ? i : this.getValue(i);
})); // When selecting multiple
// adjust menu after each
// selection
this.$nextTick(() => {
this.$refs.menu && this.$refs.menu.updateDimensions();
}); // We only need to reset list index for multiple
// to keep highlight when an item is toggled
// on and off
if (!this.multiple) return;
const listIndex = this.getMenuIndex();
this.setMenuIndex(-1); // There is no item to re-highlight
// when selections are hidden
if (this.hideSelected) return;
this.$nextTick(() => this.setMenuIndex(listIndex));
}
},
setMenuIndex(index) {
this.$refs.menu && (this.$refs.menu.listIndex = index);
},
setSelectedItems() {
const selectedItems = [];
const values = !this.multiple || !Array.isArray(this.internalValue) ? [this.internalValue] : this.internalValue;
for (const value of values) {
const index = this.allItems.findIndex(v => this.valueComparator(this.getValue(v), this.getValue(value)));
if (index > -1) {
selectedItems.push(this.allItems[index]);
}
}
this.selectedItems = selectedItems;
},
setValue(value) {
const oldValue = this.internalValue;
this.internalValue = value;
value !== oldValue && this.$emit('change', value);
}
}
});
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