mirror of
https://github.com/discourse/discourse.git
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443 lines
11 KiB
JavaScript
443 lines
11 KiB
JavaScript
import { get } from "@ember/object";
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import { makeArray } from "discourse/lib/utilities";
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import { isEmpty } from "@ember/utils";
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import { throttle } from "@ember/runloop";
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import { schedule } from "@ember/runloop";
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import { on } from "ember-addons/ember-computed-decorators";
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import Mixin from "@ember/object/mixin";
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const { bind } = Ember.run;
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export default Mixin.create({
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@on("init")
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_initKeys() {
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this.keys = {
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TAB: 9,
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ENTER: 13,
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ESC: 27,
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UP: 38,
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DOWN: 40,
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BACKSPACE: 8,
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LEFT: 37,
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RIGHT: 39,
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A: 65
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};
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this._boundMouseDownHandler = bind(this, this._mouseDownHandler);
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this._boundFocusHeaderHandler = bind(this, this._focusHeaderHandler);
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this._boundKeydownHeaderHandler = bind(this, this._keydownHeaderHandler);
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this._boundKeypressHeaderHandler = bind(this, this._keypressHeaderHandler);
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this._boundChangeFilterInputHandler = bind(
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this,
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this._changeFilterInputHandler
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);
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this._boundKeypressFilterInputHandler = bind(
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this,
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this._keypressFilterInputHandler
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);
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this._boundFocusoutFilterInputHandler = bind(
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this,
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this._focusoutFilterInputHandler
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);
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this._boundKeydownFilterInputHandler = bind(
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this,
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this._keydownFilterInputHandler
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);
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},
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@on("didInsertElement")
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_setupEvents() {
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$(document).on("mousedown.select-kit", this._boundMouseDownHandler);
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this.$header()
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.on("blur.select-kit", this._boundBlurHeaderHandler)
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.on("focus.select-kit", this._boundFocusHeaderHandler)
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.on("keydown.select-kit", this._boundKeydownHeaderHandler)
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.on("keypress.select-kit", this._boundKeypressHeaderHandler);
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this.$filterInput()
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.on("change.select-kit", this._boundChangeFilterInputHandler)
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.on("keypress.select-kit", this._boundKeypressFilterInputHandler)
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.on("focusout.select-kit", this._boundFocusoutFilterInputHandler)
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.on("keydown.select-kit", this._boundKeydownFilterInputHandler);
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},
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@on("willDestroyElement")
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_cleanUpEvents() {
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$(document).off("mousedown.select-kit", this._boundMouseDownHandler);
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if (this.$header()) {
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this.$header()
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.off("blur.select-kit", this._boundBlurHeaderHandler)
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.off("focus.select-kit", this._boundFocusHeaderHandler)
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.off("keydown.select-kit", this._boundKeydownHeaderHandler)
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.off("keypress.select-kit", this._boundKeypressHeaderHandler);
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}
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if (this.$filterInput()) {
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this.$filterInput()
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.off("change.select-kit", this._boundChangeFilterInputHandler)
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.off("keypress.select-kit", this._boundKeypressFilterInputHandler)
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.off("focusout.select-kit", this._boundFocusoutFilterInputHandler)
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.off("keydown.select-kit", this._boundKeydownFilterInputHandler);
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}
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},
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_mouseDownHandler(event) {
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if (!this.element || this.isDestroying || this.isDestroyed) {
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return true;
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}
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if (this.element !== event.target && this.element.contains(event.target)) {
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event.stopPropagation();
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if (!this.renderedBodyOnce) return;
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if (!this.isFocused) return;
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} else {
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this.didClickOutside(event);
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}
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},
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_blurHeaderHandler() {
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if (!this.isExpanded && this.isFocused) {
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this.close();
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}
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},
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_focusHeaderHandler(event) {
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this.set("isFocused", true);
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this._destroyEvent(event);
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},
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_keydownHeaderHandler(event) {
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if (document.activeElement !== this.$header()[0]) return event;
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const keyCode = event.keyCode || event.which;
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if (keyCode === this.keys.TAB && event.shiftKey) {
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this.unfocus(event);
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}
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if (keyCode === this.keys.TAB && !event.shiftKey) this.tabFromHeader(event);
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if (isEmpty(this.filter) && keyCode === this.keys.BACKSPACE)
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this.backspaceFromHeader(event);
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if (keyCode === this.keys.ESC) this.escapeFromHeader(event);
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if (keyCode === this.keys.ENTER) this.enterFromHeader(event);
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if ([this.keys.UP, this.keys.DOWN].includes(keyCode))
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this.upAndDownFromHeader(event);
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if (
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isEmpty(this.filter) &&
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[this.keys.LEFT, this.keys.RIGHT].includes(keyCode)
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) {
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this.leftAndRightFromHeader(event);
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}
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return event;
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},
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_keypressHeaderHandler(event) {
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const keyCode = event.keyCode || event.which;
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if (keyCode === this.keys.ENTER) return true;
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if (keyCode === this.keys.TAB) return true;
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this.expand(event);
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if (this.filterable || this.autoFilterable) {
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this.set("renderedFilterOnce", true);
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}
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schedule("afterRender", () => {
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this.$filterInput()
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.focus()
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.val(this.$filterInput().val() + String.fromCharCode(keyCode));
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});
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return false;
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},
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_keydownFilterInputHandler(event) {
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const keyCode = event.keyCode || event.which;
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if (
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isEmpty(this.filter) &&
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keyCode === this.keys.BACKSPACE &&
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typeof this.didPressBackspaceFromFilter === "function"
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) {
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this.didPressBackspaceFromFilter(event);
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}
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if (keyCode === this.keys.TAB && event.shiftKey) {
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this.unfocus(event);
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}
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if (keyCode === this.keys.TAB && !event.shiftKey) this.tabFromFilter(event);
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if (keyCode === this.keys.ESC) this.escapeFromFilter(event);
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if (keyCode === this.keys.ENTER) this.enterFromFilter(event);
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if ([this.keys.UP, this.keys.DOWN].includes(keyCode))
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this.upAndDownFromFilter(event);
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if (
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isEmpty(this.filter) &&
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[this.keys.LEFT, this.keys.RIGHT].includes(keyCode)
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) {
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this.leftAndRightFromFilter(event);
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}
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},
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_changeFilterInputHandler(event) {
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this.send("onFilterComputedContent", $(event.target).val());
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},
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_keypressFilterInputHandler(event) {
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event.stopPropagation();
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},
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_focusoutFilterInputHandler(event) {
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this.onFilterInputFocusout(event);
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},
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didPressTab(event) {
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if (this.$highlightedRow().length && this.isExpanded) {
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this.close(event);
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this.$header().focus();
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const guid = this.$highlightedRow().attr("data-guid");
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this.select(this._findComputedContentItemByGuid(guid));
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return true;
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}
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if (isEmpty(this.filter)) {
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this.close(event);
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return true;
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}
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return true;
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},
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didPressEnter(event) {
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if (!this.isExpanded) {
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this.expand(event);
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} else if (this.$highlightedRow().length) {
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this.close(event);
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this.$header().focus();
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const guid = this.$highlightedRow().attr("data-guid");
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this.select(this._findComputedContentItemByGuid(guid));
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}
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return true;
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},
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didClickSelectionItem(computedContentItem) {
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this.focus();
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this.deselect(computedContentItem);
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},
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didClickRow(computedContentItem) {
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this.close();
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this.focus();
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this.select(computedContentItem);
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},
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didPressEscape(event) {
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this._destroyEvent(event);
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if (this.highlightedSelection.length && this.isExpanded) {
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this.clearHighlightSelection();
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} else {
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this.unfocus(event);
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}
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},
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didPressUpAndDownArrows(event) {
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this._destroyEvent(event);
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this.clearHighlightSelection();
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const keyCode = event.keyCode || event.which;
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if (!this.isExpanded) {
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this.expand(event);
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if (this.$selectedRow().length === 1) {
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this._highlightRow(this.$selectedRow());
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return;
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}
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return;
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}
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const $rows = this.$rows();
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if (!$rows.length) {
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return;
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}
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if ($rows.length === 1) {
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this._rowSelection($rows, 0);
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return;
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}
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const direction = keyCode === 38 ? -1 : 1;
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throttle(this, this._moveHighlight, direction, $rows, 32);
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},
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didPressBackspaceFromFilter(event) {
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this.didPressBackspace(event);
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},
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didPressBackspace(event) {
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if (!this.isExpanded) {
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this.expand();
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if (event) event.stopImmediatePropagation();
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return;
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}
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if (!this.selection || !this.selection.length) return;
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if (!isEmpty(this.filter)) {
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this.clearHighlightSelection();
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return;
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}
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if (!this.highlightedSelection.length) {
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// try to highlight the last non locked item from the current selection
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makeArray(this.selection)
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.slice()
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.reverse()
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.some(selection => {
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if (!get(selection, "locked")) {
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this.highlightSelection(selection);
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return true;
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}
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});
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if (event) event.stopImmediatePropagation();
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} else {
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this.deselect(this.highlightedSelection);
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if (event) event.stopImmediatePropagation();
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}
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},
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didPressSelectAll() {
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this.highlightSelection(makeArray(this.selection));
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},
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didClickOutside(event) {
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if (this.isExpanded && $(event.target).parents(".select-kit").length) {
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this.close(event);
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return false;
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}
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this.close(event);
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return;
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},
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// make sure we don’t propagate a click outside component
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// to avoid closing a modal containing the component for example
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click(event) {
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this._destroyEvent(event);
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},
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didPressLeftAndRightArrows(event) {
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if (!this.isExpanded) {
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this.expand();
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event.stopImmediatePropagation();
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return;
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}
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if (isEmpty(this.selection)) return;
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const keyCode = event.keyCode || event.which;
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if (keyCode === this.keys.LEFT) {
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const prev = this.get("highlightedSelection.lastObject");
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const indexOfPrev = this.selection.indexOf(prev);
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if (this.selection[indexOfPrev - 1]) {
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this.highlightSelection(this.selection[indexOfPrev - 1]);
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} else {
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this.highlightSelection(this.get("selection.lastObject"));
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}
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} else {
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const prev = this.get("highlightedSelection.firstObject");
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const indexOfNext = this.selection.indexOf(prev);
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if (this.selection[indexOfNext + 1]) {
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this.highlightSelection(this.selection[indexOfNext + 1]);
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} else {
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this.highlightSelection(this.get("selection.firstObject"));
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}
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}
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},
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tabFromHeader(event) {
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this.didPressTab(event);
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},
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tabFromFilter(event) {
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this.didPressTab(event);
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},
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escapeFromHeader(event) {
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this.didPressEscape(event);
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},
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escapeFromFilter(event) {
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this.didPressEscape(event);
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},
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upAndDownFromHeader(event) {
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this.didPressUpAndDownArrows(event);
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},
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upAndDownFromFilter(event) {
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this.didPressUpAndDownArrows(event);
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},
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leftAndRightFromHeader(event) {
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this.didPressLeftAndRightArrows(event);
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},
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leftAndRightFromFilter(event) {
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this.didPressLeftAndRightArrows(event);
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},
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backspaceFromHeader(event) {
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this.didPressBackspace(event);
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},
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enterFromHeader(event) {
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this.didPressEnter(event);
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},
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enterFromFilter(event) {
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this.didPressEnter(event);
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},
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onFilterInputFocusout(event) {
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if (
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!(
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this.element !== event.relatedTarget &&
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this.element.contains(event.relatedTarget)
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)
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) {
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this.close(event);
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}
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},
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_moveHighlight(direction, $rows) {
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const currentIndex = $rows.index(this.$highlightedRow());
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let nextIndex = currentIndex + direction;
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if (nextIndex < 0) {
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nextIndex = $rows.length - 1;
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} else if (nextIndex >= $rows.length) {
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nextIndex = 0;
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}
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this._rowSelection($rows, nextIndex);
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},
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_rowSelection($rows, nextIndex) {
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const highlightableValue = $rows.eq(nextIndex).attr("data-value");
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const $highlightableRow = this.$findRowByValue(highlightableValue);
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this._highlightRow($highlightableRow);
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},
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_highlightRow($row) {
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schedule("afterRender", () => {
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$row.trigger("mouseover").focus();
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this.focus();
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});
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}
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});
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