@catull/igniteui-angular
Version:
Ignite UI for Angular is a dependency-free Angular toolkit for building modern web apps
149 lines • 14.9 kB
JavaScript
import { __decorate, __metadata, __param } from "tslib";
import { Directive, Optional, Self, Input, HostListener, Inject } from '@angular/core';
import { IGX_DROPDOWN_BASE } from './drop-down.common';
import { IgxDropDownBaseDirective } from './drop-down.base';
import { DropDownActionKey } from './drop-down.common';
/**
* Navigation Directive that handles keyboard events on its host and controls a targeted IgxDropDownBaseDirective component
*/
var IgxDropDownItemNavigationDirective = /** @class */ (function () {
function IgxDropDownItemNavigationDirective(dropdown) {
this.dropdown = dropdown;
this._target = null;
}
Object.defineProperty(IgxDropDownItemNavigationDirective.prototype, "target", {
/**
* Gets the target of the navigation directive;
*
* ```typescript
* // Get
* export class MyComponent {
* ...
* @ContentChild(IgxDropDownNavigationDirective)
* navDirective: IgxDropDownNavigationDirective = null
* ...
* const navTarget: IgxDropDownBaseDirective = navDirective.navTarget
* }
* ```
*/
get: function () {
return this._target;
},
/**
* Sets the target of the navigation directive;
* If no valid target is passed, it falls back to the drop down context
*
* ```html
* <!-- Set -->
* <input [igxDropDownItemNavigation]="dropdown" />
* ...
* <igx-drop-down #dropdown>
* ...
* </igx-drop-down>
* ```
*/
set: function (target) {
this._target = target ? target : this.dropdown;
},
enumerable: true,
configurable: true
});
/**
* Captures keydown events and calls the appropriate handlers on the target component
*/
IgxDropDownItemNavigationDirective.prototype.handleKeyDown = function (event) {
if (event) {
var key = event.key.toLowerCase();
if (!this.target.collapsed) { // If dropdown is opened
var navKeys = ['esc', 'escape', 'enter', 'space', 'spacebar', ' ',
'arrowup', 'up', 'arrowdown', 'down', 'home', 'end'];
if (navKeys.indexOf(key) === -1) { // If key has appropriate function in DD
return;
}
event.preventDefault();
event.stopPropagation();
}
else { // If dropdown is closed, do nothing
return;
}
switch (key) {
case 'esc':
case 'escape':
this.target.onItemActionKey(DropDownActionKey.ESCAPE, event);
break;
case 'enter':
this.target.onItemActionKey(DropDownActionKey.ENTER, event);
break;
case 'space':
case 'spacebar':
case ' ':
this.target.onItemActionKey(DropDownActionKey.SPACE, event);
break;
case 'arrowup':
case 'up':
this.onArrowUpKeyDown();
break;
case 'arrowdown':
case 'down':
this.onArrowDownKeyDown();
break;
case 'home':
this.onHomeKeyDown();
break;
case 'end':
this.onEndKeyDown();
break;
default:
return;
}
}
};
/**
* Navigates to previous item
*/
IgxDropDownItemNavigationDirective.prototype.onArrowDownKeyDown = function () {
this.target.navigateNext();
};
/**
* Navigates to previous item
*/
IgxDropDownItemNavigationDirective.prototype.onArrowUpKeyDown = function () {
this.target.navigatePrev();
};
/**
* Navigates to target's last item
*/
IgxDropDownItemNavigationDirective.prototype.onEndKeyDown = function () {
this.target.navigateLast();
};
/**
* Navigates to target's first item
*/
IgxDropDownItemNavigationDirective.prototype.onHomeKeyDown = function () {
this.target.navigateFirst();
};
IgxDropDownItemNavigationDirective.ctorParameters = function () { return [
{ type: IgxDropDownBaseDirective, decorators: [{ type: Self }, { type: Optional }, { type: Inject, args: [IGX_DROPDOWN_BASE,] }] }
]; };
__decorate([
Input('igxDropDownItemNavigation'),
__metadata("design:type", IgxDropDownBaseDirective),
__metadata("design:paramtypes", [IgxDropDownBaseDirective])
], IgxDropDownItemNavigationDirective.prototype, "target", null);
__decorate([
HostListener('keydown', ['$event']),
__metadata("design:type", Function),
__metadata("design:paramtypes", [KeyboardEvent]),
__metadata("design:returntype", void 0)
], IgxDropDownItemNavigationDirective.prototype, "handleKeyDown", null);
IgxDropDownItemNavigationDirective = __decorate([
Directive({
selector: '[igxDropDownItemNavigation]'
}),
__param(0, Self()), __param(0, Optional()), __param(0, Inject(IGX_DROPDOWN_BASE)),
__metadata("design:paramtypes", [IgxDropDownBaseDirective])
], IgxDropDownItemNavigationDirective);
return IgxDropDownItemNavigationDirective;
}());
export { IgxDropDownItemNavigationDirective };
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target : this.dropdown;\n    }\n\n    /**\n     * Captures keydown events and calls the appropriate handlers on the target component\n     */\n    @HostListener('keydown', ['$event'])\n    handleKeyDown(event: KeyboardEvent) {\n        if (event) {\n            const key = event.key.toLowerCase();\n            if (!this.target.collapsed) { // If dropdown is opened\n                const navKeys = ['esc', 'escape', 'enter', 'space', 'spacebar', ' ',\n            'arrowup', 'up', 'arrowdown', 'down', 'home', 'end'];\n                if (navKeys.indexOf(key) === -1) { // If key has appropriate function in DD\n                    return;\n                }\n                event.preventDefault();\n                event.stopPropagation();\n            } else { // If dropdown is closed, do nothing\n                return;\n            }\n            switch (key) {\n                case 'esc':\n                case 'escape':\n                    this.target.onItemActionKey(DropDownActionKey.ESCAPE, event);\n                    break;\n                case 'enter':\n                    this.target.onItemActionKey(DropDownActionKey.ENTER, event);\n                    break;\n                case 'space':\n                case 'spacebar':\n                case ' ':\n                    this.target.onItemActionKey(DropDownActionKey.SPACE, event);\n                    break;\n                case 'arrowup':\n                case 'up':\n                    this.onArrowUpKeyDown();\n                    break;\n                case 'arrowdown':\n                case 'down':\n                    this.onArrowDownKeyDown();\n                    break;\n                case 'home':\n                    this.onHomeKeyDown();\n                    break;\n                case 'end':\n                    this.onEndKeyDown();\n                    break;\n                default:\n                    return;\n            }\n        }\n    }\n\n    /**\n     * Navigates to previous item\n     */\n    onArrowDownKeyDown() {\n        this.target.navigateNext();\n    }\n\n    /**\n     * Navigates to previous item\n     */\n    onArrowUpKeyDown() {\n        this.target.navigatePrev();\n    }\n\n    /**\n     * Navigates to target's last item\n     */\n    onEndKeyDown() {\n        this.target.navigateLast();\n    }\n\n    /**\n     * Navigates to target's first item\n     */\n    onHomeKeyDown() {\n        this.target.navigateFirst();\n    }\n}\n"]}