@catull/igniteui-angular
Version:
Ignite UI for Angular is a dependency-free Angular toolkit for building modern web apps
178 lines • 24.2 kB
JavaScript
import { __decorate } from "tslib";
import { Injectable } from '@angular/core';
import { ScrollMonth } from '../calendar-base';
var Direction;
(function (Direction) {
Direction["Up"] = "ArrowUp";
Direction["Down"] = "ArrowDown";
Direction["Left"] = "ArrowLeft";
Direction["Right"] = "ArrowRight";
})(Direction || (Direction = {}));
const ARROW = 'Arrow';
/** @hidden */
let IgxDaysViewNavigationService = class IgxDaysViewNavigationService {
/**
* Implements kb navigation in all MoveDirections. nextDate and nextMonthView naming convention is used for both previous/next
* @hidden
*/
focusNextDate(target, key, nextView = false) {
if (target.childElementCount === 0) {
target = target.parentElement;
}
if (key.indexOf('Arrow') === -1) {
key = ARROW.concat(key);
}
const monthView = this.monthView;
const node = monthView.dates.find((date) => date.nativeElement === target);
let dates = monthView.dates.toArray(), day, step, i, nextDate;
const index = dates.indexOf(node);
if (!node) {
return;
}
// focus item in current month
switch (key) {
case Direction.Left: {
step = -1;
nextDate = this.timedelta(node.date.date, step);
for (i = index; i > 0; i--) {
day = nextView ? dates[i] : dates[i - 1];
nextDate = day.date.date;
if (day.date.isPrevMonth) {
break;
}
if (day && day.isFocusable) {
day.nativeElement.focus();
return;
}
}
break;
}
case Direction.Right: {
step = 1;
nextDate = this.timedelta(node.date.date, step);
for (i = index; i < dates.length - 1; i++) {
day = nextView ? dates[i] : dates[i + 1];
nextDate = day.date.date;
if (day.date.isNextMonth) {
break;
}
if (day && day.isFocusable) {
day.nativeElement.focus();
return;
}
}
break;
}
case Direction.Up: {
step = -7;
nextDate = this.timedelta(node.date.date, step);
for (i = index; i - 7 > -1; i -= 7) {
day = nextView ? dates[i] : dates[i - 7];
nextDate = day.date.date;
if (day.date.isPrevMonth) {
break;
}
if (day && day.isFocusable) {
day.nativeElement.focus();
return;
}
}
break;
}
case Direction.Down: {
step = 7;
nextDate = this.timedelta(node.date.date, step);
for (i = index; i + 7 < 42; i += 7) {
day = nextView ? dates[i] : dates[i + 7];
nextDate = day.date.date;
if (day.date.isNextMonth) {
break;
}
if (day && day.isFocusable) {
day.nativeElement.focus();
return;
}
}
break;
}
}
// focus item in prev/next visible month
const nextMonthView = step > 0 ? monthView.nextMonthView : monthView.prevMonthView;
if (nextMonthView) {
dates = nextMonthView.dates.toArray();
day = dates.find((item) => item.date.date.getTime() === nextDate.getTime());
if (day && day.isFocusable) {
day.nativeElement.focus();
return;
}
nextMonthView.navService.focusNextDate(day.nativeElement, key);
}
// if iterating in the visible prev/next moths above found a day that is not focusable, ie is disabled, hidden, etc
// then it is needed to recalculate the next day, which is going to be part of the prev/next months
if (day && !day.isFocusable) {
day = dates[i + step];
if (!day) {
nextDate = this.timedelta(node.date.date, step + i - index);
}
}
// focus item in prev/next month, which is currently out of view
let dayIsNextMonth; // determine what we need to check for next date - if it belongs to prev or next month
if (day) {
dayIsNextMonth = step > 0 ? day.date.isNextMonth : day.date.isPrevMonth;
}
if (monthView.changeDaysView && !nextMonthView && ((day && dayIsNextMonth) || !day)) {
const monthAction = step > 0 ? ScrollMonth.NEXT : ScrollMonth.PREV;
monthView.onViewChanging.emit({ monthAction: monthAction, key: key, nextDate: nextDate });
}
}
/**
* Focuses first focusable day in the month. Will go to next visible month, if no day in the first month is focusable
* @hidden
*/
focusHomeDate() {
let monthView = this.monthView;
while (!this.focusFirstDay(monthView) && monthView.nextMonthView) {
monthView = monthView.nextMonthView;
}
}
/**
* Focuses last focusable day in the month. Will go to previous visible month, if no day in the first month is focusable
* @hidden
*/
focusEndDate() {
let monthView = this.monthView;
while (!this.focusLastDay(monthView) && monthView.prevMonthView) {
monthView = monthView.prevMonthView;
}
}
timedelta(date, units) {
const ret = new Date(date);
ret.setDate(ret.getDate() + units);
return ret;
}
focusFirstDay(monthView) {
const dates = monthView.dates.filter(d => d.isCurrentMonth);
for (let i = 0; i < dates.length; i++) {
if (dates[i].isFocusable) {
dates[i].nativeElement.focus();
return true;
}
}
return false;
}
focusLastDay(monthView) {
const dates = monthView.dates.filter(d => d.isCurrentMonth);
for (let i = dates.length - 1; i >= 0; i--) {
if (dates[i].isFocusable) {
dates[i].nativeElement.focus();
return true;
}
}
return false;
}
};
IgxDaysViewNavigationService = __decorate([
Injectable()
], IgxDaysViewNavigationService);
export { IgxDaysViewNavigationService };
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{ Injectable } from '@angular/core';\nimport { IgxDayItemComponent } from './day-item.component';\nimport { IgxDaysViewComponent } from './days-view.component';\nimport { ScrollMonth } from '../calendar-base';\n\nenum Direction {\n    Up = 'ArrowUp',\n    Down = 'ArrowDown',\n    Left = 'ArrowLeft',\n    Right = 'ArrowRight',\n}\n\nconst ARROW = 'Arrow';\n\n/** @hidden */\n@Injectable()\nexport class IgxDaysViewNavigationService {\n    public monthView: IgxDaysViewComponent;\n    /**\n     * Implements kb navigation in all MoveDirections. nextDate and nextMonthView naming convention is used for both previous/next\n     * @hidden\n     */\n    public focusNextDate(target: HTMLElement, key: string, nextView = false) {\n        if (target.childElementCount === 0) { target = target.parentElement; }\n        if (key.indexOf('Arrow') === -1) { key = ARROW.concat(key); }\n        const monthView = this.monthView;\n        const node = monthView.dates.find((date) => date.nativeElement === target);\n        let dates = monthView.dates.toArray(),\n            day: IgxDayItemComponent, step, i, nextDate: Date;\n        const index = dates.indexOf(node);\n\n        if (!node) { return; }\n\n        // focus item in current month\n        switch (key) {\n            case Direction.Left: {\n                step = -1;\n                nextDate = this.timedelta(node.date.date, step);\n                for (i = index; i > 0; i--) {\n                    day = nextView ? dates[i] : dates[i - 1];\n                    nextDate = day.date.date;\n                    if (day.date.isPrevMonth) {\n                        break;\n                    }\n                    if (day && day.isFocusable) {\n                        day.nativeElement.focus();\n                        return;\n                    }\n                }\n                break;\n            }\n            case Direction.Right: {\n                step = 1;\n                nextDate = this.timedelta(node.date.date, step);\n                for (i = index; i < dates.length - 1; i++) {\n                    day = nextView ? dates[i] : dates[i + 1];\n                    nextDate = day.date.date;\n                    if (day.date.isNextMonth) {\n                        break;\n                    }\n                    if (day && day.isFocusable) {\n                        day.nativeElement.focus();\n                        return;\n                    }\n                }\n                break;\n            }\n            case Direction.Up: {\n                step = -7;\n                nextDate = this.timedelta(node.date.date, step);\n                for (i = index; i - 7 > -1; i -= 7) {\n                    day = nextView ? dates[i] : dates[i - 7];\n                    nextDate = day.date.date;\n                    if (day.date.isPrevMonth) {\n                        break;\n                    }\n                    if (day && day.isFocusable) {\n                        day.nativeElement.focus();\n                        return;\n                    }\n                }\n                break;\n            }\n            case Direction.Down: {\n                step = 7;\n                nextDate = this.timedelta(node.date.date, step);\n                for (i = index; i + 7 < 42; i += 7) {\n                    day = nextView ? dates[i] : dates[i + 7];\n                    nextDate = day.date.date;\n                    if (day.date.isNextMonth) {\n                        break;\n                    }\n                    if (day && day.isFocusable) {\n                        day.nativeElement.focus();\n                        return;\n                    }\n                }\n                break;\n            }\n        }\n\n        // focus item in prev/next visible month\n        const nextMonthView = step > 0 ? monthView.nextMonthView : monthView.prevMonthView;\n        if (nextMonthView) {\n            dates = nextMonthView.dates.toArray();\n            day = dates.find((item) => item.date.date.getTime() === nextDate.getTime());\n\n            if (day && day.isFocusable) {\n                day.nativeElement.focus();\n                return;\n            }\n            nextMonthView.navService.focusNextDate(day.nativeElement, key);\n        }\n\n        // if iterating in the visible prev/next moths above found a day that is not focusable, ie is disabled, hidden, etc\n        // then it is needed to recalculate the next day, which is going to be part of the prev/next months\n        if (day && !day.isFocusable) {\n            day = dates[i + step];\n            if (!day) {\n                nextDate = this.timedelta(node.date.date, step + i - index);\n            }\n        }\n\n        // focus item in prev/next month, which is currently out of view\n        let dayIsNextMonth: boolean; // determine what we need to check for next date - if it belongs to prev or next month\n        if (day) { dayIsNextMonth = step > 0 ? day.date.isNextMonth : day.date.isPrevMonth; }\n        if (monthView.changeDaysView && !nextMonthView && ((day && dayIsNextMonth) || !day)) {\n            const monthAction = step > 0 ? ScrollMonth.NEXT : ScrollMonth.PREV;\n            monthView.onViewChanging.emit({monthAction: monthAction, key: key, nextDate: nextDate});\n        }\n    }\n\n    /**\n     * Focuses first focusable day in the month. Will go to next visible month, if no day in the first month is focusable\n     * @hidden\n     */\n    public focusHomeDate() {\n        let monthView = this.monthView;\n        while (!this.focusFirstDay(monthView) && monthView.nextMonthView) {\n            monthView = monthView.nextMonthView;\n        }\n    }\n\n    /**\n     * Focuses last focusable day in the month. Will go to previous visible month, if no day in the first month is focusable\n     * @hidden\n     */\n    public focusEndDate() {\n        let monthView = this.monthView;\n        while (!this.focusLastDay(monthView) && monthView.prevMonthView) {\n            monthView = monthView.prevMonthView;\n        }\n    }\n\n    private timedelta(date: Date, units: number): Date {\n        const ret = new Date(date);\n        ret.setDate(ret.getDate() + units);\n        return ret;\n    }\n\n    private focusFirstDay(monthView: IgxDaysViewComponent): boolean {\n        const dates = monthView.dates.filter(d => d.isCurrentMonth);\n        for (let i = 0; i < dates.length; i++) {\n            if (dates[i].isFocusable) {\n                dates[i].nativeElement.focus();\n                return true;\n            }\n        }\n        return false;\n    }\n\n    private focusLastDay(monthView: IgxDaysViewComponent): boolean {\n        const dates = monthView.dates.filter(d => d.isCurrentMonth);\n        for (let i = dates.length - 1; i >= 0; i--) {\n            if (dates[i].isFocusable) {\n                dates[i].nativeElement.focus();\n                return true;\n            }\n        }\n        return false;\n    }\n}\n"]}