12298124880

Committed 12 Dec 2024 02:10PM UTC coverage: 91.589% (-0.007%) from 91.596%

Build # 12298124880

Build Type

Pull #15164

github

Committed by

web-flow

Commit Message

Merge 2aa1c6e11 into 217ea33e2

Pull Request Pull Request #15164: refactor(themes): update theme preset mixins

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/projects/igniteui-angular/src/lib/grids/hierarchical-grid/hierarchical-grid-navigation.service.ts

import { Injectable } from '@angular/core';
import { first } from 'rxjs/operators';
import { NAVIGATION_KEYS, SUPPORTED_KEYS } from '../../core/utils';
import { GridType, IPathSegment, RowType } from '../common/grid.interface';
import { IActiveNode, IgxGridNavigationService } from '../grid-navigation.service';

@Injectable()
export class IgxHierarchicalGridNavigationService extends IgxGridNavigationService {
    protected _pendingNavigation = false;


    public override dispatchEvent(event: KeyboardEvent) {
        const key = event.key.toLowerCase();
        const cellOrRowInEdit = this.grid.crudService.cell || this.grid.crudService.row;
        if (!this.activeNode || !(SUPPORTED_KEYS.has(key) || (key === 'tab' && cellOrRowInEdit))) {
            return;
        }

        const targetGrid = this.getClosestElemByTag(event.target, 'igx-hierarchical-grid')
            || this.getClosestElemByTag(event.target, 'igc-hierarchical-grid');
        if (targetGrid !== this.grid.nativeElement) {
            return;
        }

        if (this._pendingNavigation && NAVIGATION_KEYS.has(key)) {
            // In case focus needs to be moved from one grid to another, however there is a pending scroll operation
            // which is an async operation, any additional navigation keys should be ignored
            // untill operation complete.
            event.preventDefault();
            return;
        }
        super.dispatchEvent(event);
    }

    public override navigateInBody(rowIndex, visibleColIndex, cb: (arg: any) => void = null): void {
        const rec = this.grid.dataView[rowIndex];
        if (rec && this.grid.isChildGridRecord(rec)) {
             // target is child grid
            const virtState = this.grid.verticalScrollContainer.state;
             const inView = rowIndex >= virtState.startIndex && rowIndex <= virtState.startIndex + virtState.chunkSize;
             const isNext =  this.activeNode.row < rowIndex;
             const targetLayoutIndex = isNext ? null : this.grid.childLayoutKeys.length - 1;
             if (inView) {
                this._moveToChild(rowIndex, visibleColIndex, isNext, targetLayoutIndex, cb);
            } else {
                let scrollAmount = this.grid.verticalScrollContainer.getScrollForIndex(rowIndex, !isNext);
                scrollAmount += isNext ? 1 : -1;
                this.grid.verticalScrollContainer.getScroll().scrollTop = scrollAmount;
                this._pendingNavigation = true;
                this.grid.verticalScrollContainer.chunkLoad.pipe(first()).subscribe(() => {
                    this._moveToChild(rowIndex, visibleColIndex, isNext, targetLayoutIndex, cb);
                    this._pendingNavigation = false;
                });
            }
            return;
        }

        const isLast = rowIndex === this.grid.dataView.length;
        if ((rowIndex === -1 || isLast) &&
            this.grid.parent !== null) {
            // reached end of child grid
            const nextSiblingIndex = this.nextSiblingIndex(isLast);
            if (nextSiblingIndex !== null) {
                this.grid.parent.navigation._moveToChild(this.grid.childRow.index, visibleColIndex, isLast, nextSiblingIndex, cb);
            } else {
                this._moveToParent(isLast, visibleColIndex, cb);
            }
            return;
        }

        if (this.grid.parent) {
            const isNext = this.activeNode && typeof this.activeNode.row === 'number' ? rowIndex > this.activeNode.row : false;
            const cbHandler = (args) => {
                this._handleScrollInChild(rowIndex, isNext);
                cb(args);
            };
            if (!this.activeNode) {
                this.activeNode = { row: null, column: null };
            }
            super.navigateInBody(rowIndex, visibleColIndex, cbHandler);
            return;
        }

        if (!this.activeNode) {
            this.activeNode = { row: null, column: null };
        }
        super.navigateInBody(rowIndex, visibleColIndex, cb);
    }

    public override shouldPerformVerticalScroll(index, visibleColumnIndex = -1, isNext?) {
        const targetRec = this.grid.dataView[index];
        if (this.grid.isChildGridRecord(targetRec)) {
            const scrollAmount = this.grid.verticalScrollContainer.getScrollForIndex(index, !isNext);
            const currScroll = this.grid.verticalScrollContainer.getScroll().scrollTop;
            const shouldScroll = !isNext ? scrollAmount > currScroll : currScroll < scrollAmount;
            return shouldScroll;
        } else {
            return super.shouldPerformVerticalScroll(index, visibleColumnIndex);
        }
    }

    public override focusTbody(event) {
        if (!this.activeNode || this.activeNode.row === null) {
            this.activeNode = {
                row: 0,
                column: 0
            };

            this.grid.navigateTo(0, 0, (obj) => {
                this.grid.clearCellSelection();
                obj.target.activate(event);
            });

        } else {
            super.focusTbody(event);
        }
    }

    protected nextSiblingIndex(isNext) {
        const layoutKey = this.grid.childRow.layout.key;
        const layoutIndex = this.grid.parent.childLayoutKeys.indexOf(layoutKey);
        const nextIndex = isNext ? layoutIndex + 1 : layoutIndex - 1;
        if (nextIndex <= this.grid.parent.childLayoutKeys.length - 1 && nextIndex > -1) {
            return nextIndex;
        } else {
            return null;
        }
    }

    /**
     * Handles scrolling in child grid and ensures target child row is in main grid view port.
     *
     * @param rowIndex The row index which should be in view.
     * @param isNext  Optional. Whether we are navigating to next. Used to determine scroll direction.
     * @param cb  Optional.Callback function called when operation is complete.
     */
    protected _handleScrollInChild(rowIndex: number, isNext?: boolean, cb?: () => void) {
        const shouldScroll = this.shouldPerformVerticalScroll(rowIndex, -1, isNext);
        if (shouldScroll) {
            this.grid.navigation.performVerticalScrollToCell(rowIndex, -1, () => {
                this.positionInParent(rowIndex, isNext, cb);
            });
        } else {
            this.positionInParent(rowIndex, isNext, cb);
        }
    }

    /**
     *
     * @param rowIndex Row index that should come in view.
     * @param isNext  Whether we are navigating to next. Used to determine scroll direction.
     * @param cb  Optional.Callback function called when operation is complete.
     */
    protected positionInParent(rowIndex, isNext, cb?: () => void) {
        const row = this.grid.gridAPI.get_row_by_index(rowIndex);
        if (!row) {
            if (cb) {
                cb();
            }
            return;
        }
        const positionInfo = this.getPositionInfo(row, isNext);
        if (!positionInfo.inView) {
            // stop event from triggering multiple times before scrolling is complete.
            this._pendingNavigation = true;
            const scrollableGrid = isNext ? this.getNextScrollableDown(this.grid) : this.getNextScrollableUp(this.grid);
            scrollableGrid.grid.verticalScrollContainer.recalcUpdateSizes();
            scrollableGrid.grid.verticalScrollContainer.addScrollTop(positionInfo.offset);
            scrollableGrid.grid.verticalScrollContainer.chunkLoad.pipe(first()).subscribe(() => {
                this._pendingNavigation = false;
                if (cb) {
                    cb();
                }
            });
        } else {
            if (cb) {
                cb();
            }
        }
    }

    /**
     * Moves navigation to child grid.
     *
     * @param parentRowIndex The parent row index, at which the child grid is rendered.
     * @param childLayoutIndex Optional. The index of the child row island to which the child grid belongs to. Uses first if not set.
     */
    protected _moveToChild(parentRowIndex: number, visibleColIndex: number, isNext: boolean, childLayoutIndex?: number,
                            cb?: (arg: any) => void) {
        const ri = typeof childLayoutIndex !== 'number' ?
         this.grid.childLayoutList.first : this.grid.childLayoutList.toArray()[childLayoutIndex];
        const rowId = this.grid.dataView[parentRowIndex].rowID;
        const pathSegment: IPathSegment = {
            rowID: rowId,
            rowKey: rowId,
            rowIslandKey: ri.key
        };
        const childGrid =  this.grid.gridAPI.getChildGrid([pathSegment]);
        const targetIndex = isNext ? 0 : childGrid.dataView.length - 1;
        const targetRec =  childGrid.dataView[targetIndex];
        if (!targetRec) {
            // if no target rec, then move on in next sibling or parent
            childGrid.navigation.navigateInBody(targetIndex, visibleColIndex, cb);
            return;
        }
        if (childGrid.isChildGridRecord(targetRec)) {
            // if target is a child grid record should move into it.
            this.grid.navigation.activeNode.row = null;
            childGrid.navigation.activeNode = { row: targetIndex, column: this.activeNode.column};
            childGrid.navigation._handleScrollInChild(targetIndex, isNext, () => {
                const targetLayoutIndex = isNext ? 0 : childGrid.childLayoutList.toArray().length - 1;
                childGrid.navigation._moveToChild(targetIndex, visibleColIndex, isNext, targetLayoutIndex, cb);
            });
            return;
        }

        const childGridNav =  childGrid.navigation;
        this.clearActivation();
        const lastVisibleIndex = childGridNav.lastColumnIndex;
        const columnIndex = visibleColIndex <= lastVisibleIndex ? visibleColIndex : lastVisibleIndex;
        childGridNav.activeNode = { row: targetIndex, column: columnIndex};
        childGrid.tbody.nativeElement.focus({preventScroll: true});
        this._pendingNavigation = false;
        childGrid.navigation._handleScrollInChild(targetIndex, isNext, () => {
            childGrid.navigateTo(targetIndex, columnIndex, cb);
        });
    }

    /**
     * Moves navigation back to parent grid.
     *
     * @param rowIndex
     */
    protected _moveToParent(isNext: boolean, columnIndex, cb?) {
        const indexInParent = this.grid.childRow.index;
        const hasNextTarget = this.hasNextTarget(this.grid.parent, indexInParent, isNext);
        if (!hasNextTarget) {
            return;
        }
        this.clearActivation();
        const targetRowIndex =  isNext ? indexInParent + 1 : indexInParent - 1;
        const lastVisibleIndex = this.grid.parent.navigation.lastColumnIndex;
        const nextColumnIndex = columnIndex <= lastVisibleIndex ? columnIndex : lastVisibleIndex;
        this._pendingNavigation = true;
        const cbFunc = (args) => {
            this._pendingNavigation = false;
            cb(args);
            args.target.grid.tbody.nativeElement.focus();
        };
        this.grid.parent.navigation.navigateInBody(targetRowIndex, nextColumnIndex, cbFunc);
    }

    /**
     * Gets information on the row position relative to the root grid view port.
     * Returns whether the row is in view and its offset.
     *
     * @param rowObj
     * @param isNext
     */
    protected getPositionInfo(row: RowType, isNext: boolean) {
        // XXX: Fix type
        let rowElem = row.nativeElement;
        if ((row as any).layout) {
            const childLayoutKeys = this.grid.childLayoutKeys;
            const riKey = isNext ? childLayoutKeys[0] : childLayoutKeys[childLayoutKeys.length - 1];
            const pathSegment: IPathSegment = {
                rowID: row.data.rowID, rowKey: row.data.rowID,
                rowIslandKey: riKey
            };
            const childGrid =  this.grid.gridAPI.getChildGrid([pathSegment]);
            rowElem = childGrid.tfoot.nativeElement;
        }
        const gridBottom = this._getMinBottom(this.grid);
        const diffBottom =
        rowElem.getBoundingClientRect().bottom - gridBottom;
        const gridTop = this._getMaxTop(this.grid);
        const diffTop = rowElem.getBoundingClientRect().bottom -
        rowElem.offsetHeight - gridTop;
        // Adding Math.Round because Chrome has some inconsistencies when the page is zoomed
        const isInView = isNext ? Math.round(diffBottom) <= 0 : Math.round(diffTop) >= 0;
        const calcOffset =  isNext ? diffBottom : diffTop;

        return { inView: isInView, offset: calcOffset };
    }

    /**
     * Gets closest element by its tag name.
     *
     * @param sourceElem The element from which to start the search.
     * @param targetTag The target element tag name, for which to search.
     */
    protected getClosestElemByTag(sourceElem, targetTag) {
        let result = sourceElem;
        while (result !== null && result.nodeType === 1) {
            if (result.tagName.toLowerCase() === targetTag.toLowerCase()) {
                return result;
            }
            result = result.parentNode;
        }
        return null;
    }

    private clearActivation() {
        // clear if previous activation exists.
        if (this.activeNode && Object.keys(this.activeNode).length) {
            this.activeNode = Object.assign({} as IActiveNode);
        }
    }

    private hasNextTarget(grid: GridType, index: number, isNext: boolean) {
        const targetRowIndex =  isNext ? index + 1 : index - 1;
        const hasTargetRecord = !!grid.dataView[targetRowIndex];
        if (hasTargetRecord) {
            return true;
        } else {
            let hasTargetRecordInParent = false;
            if (grid.parent) {
                const indexInParent = grid.childRow.index;
                hasTargetRecordInParent = this.hasNextTarget(grid.parent, indexInParent, isNext);
            }
            return hasTargetRecordInParent;
        }
    }

    /**
     * Gets the max top view in the current grid hierarchy.
     *
     * @param grid
     */
    private _getMaxTop(grid) {
        let currGrid = grid;
        let top = currGrid.tbody.nativeElement.getBoundingClientRect().top;
        while (currGrid.parent) {
            currGrid = currGrid.parent;
            const pinnedRowsHeight = currGrid.hasPinnedRecords && currGrid.isRowPinningToTop ? currGrid.pinnedRowHeight : 0;
            top = Math.max(top, currGrid.tbody.nativeElement.getBoundingClientRect().top + pinnedRowsHeight);
        }
        return top;
    }

    /**
     * Gets the min bottom view in the current grid hierarchy.
     *
     * @param grid
     */
    private _getMinBottom(grid) {
        let currGrid = grid;
        let bottom = currGrid.tbody.nativeElement.getBoundingClientRect().bottom;
        while (currGrid.parent) {
            currGrid = currGrid.parent;
            const pinnedRowsHeight = currGrid.hasPinnedRecords && !currGrid.isRowPinningToTop ? currGrid.pinnedRowHeight : 0;
            bottom = Math.min(bottom, currGrid.tbody.nativeElement.getBoundingClientRect().bottom - pinnedRowsHeight);
        }
        return bottom;
    }

    /**
     * Finds the next grid that allows scrolling down.
     *
     * @param grid The grid from which to begin the search.
     */
    private getNextScrollableDown(grid) {
        let currGrid = grid.parent;
        if (!currGrid) {
            return { grid, prev: null };
        }
        let scrollTop = currGrid.verticalScrollContainer.scrollPosition;
        let scrollHeight = currGrid.verticalScrollContainer.getScroll().scrollHeight;
        let nonScrollable = scrollHeight === 0 ||
            Math.round(scrollTop + currGrid.verticalScrollContainer.igxForContainerSize) === scrollHeight;
        let prev = grid;
        while (nonScrollable && currGrid.parent !== null) {
            prev = currGrid;
            currGrid = currGrid.parent;
            scrollTop = currGrid.verticalScrollContainer.scrollPosition;
            scrollHeight = currGrid.verticalScrollContainer.getScroll().scrollHeight;
            nonScrollable = scrollHeight === 0 ||
                Math.round(scrollTop + currGrid.verticalScrollContainer.igxForContainerSize) === scrollHeight;
        }
        return { grid: currGrid, prev };
    }

    /**
     * Finds the next grid that allows scrolling up.
     *
     * @param grid The grid from which to begin the search.
     */
    private getNextScrollableUp(grid) {
        let currGrid = grid.parent;
        if (!currGrid) {
            return { grid, prev: null };
        }
        let nonScrollable = currGrid.verticalScrollContainer.scrollPosition === 0;
        let prev = grid;
        while (nonScrollable && currGrid.parent !== null) {
            prev = currGrid;
            currGrid = currGrid.parent;
            nonScrollable = currGrid.verticalScrollContainer.scrollPosition === 0;
        }
        return { grid: currGrid, prev };
    }
}

1	import { Injectable } from '@angular/core';
2	import { first } from 'rxjs/operators';
3	import { NAVIGATION_KEYS, SUPPORTED_KEYS } from '../../core/utils';
4	import { GridType, IPathSegment, RowType } from '../common/grid.interface';
5	import { IActiveNode, IgxGridNavigationService } from '../grid-navigation.service';
6
7	@Injectable()
8	export class IgxHierarchicalGridNavigationService extends IgxGridNavigationService {	2✔
9	protected _pendingNavigation = false;	857✔
10
11
12	public override dispatchEvent(event: KeyboardEvent) {
13	const key = event.key.toLowerCase();	47✔
14	const cellOrRowInEdit = this.grid.crudService.cell \|\| this.grid.crudService.row;	47✔
15	if (!this.activeNode \|\| !(SUPPORTED_KEYS.has(key) \|\| (key === 'tab' && cellOrRowInEdit))) {	47!
16	return;	×
17	}
18
19	const targetGrid = this.getClosestElemByTag(event.target, 'igx-hierarchical-grid')	47!
20	\|\| this.getClosestElemByTag(event.target, 'igc-hierarchical-grid');
21	if (targetGrid !== this.grid.nativeElement) {	47!
22	return;	×
23	}
24
25	if (this._pendingNavigation && NAVIGATION_KEYS.has(key)) {	47!
26	// In case focus needs to be moved from one grid to another, however there is a pending scroll operation
27	// which is an async operation, any additional navigation keys should be ignored
28	// untill operation complete.
29	event.preventDefault();	×
30	return;	×
31	}
32	super.dispatchEvent(event);	47✔
33	}
34
35	public override navigateInBody(rowIndex, visibleColIndex, cb: (arg: any) => void = null): void {	×
36	const rec = this.grid.dataView[rowIndex];	49✔
37	if (rec && this.grid.isChildGridRecord(rec)) {	49✔
38	// target is child grid
39	const virtState = this.grid.verticalScrollContainer.state;	15✔
40	const inView = rowIndex >= virtState.startIndex && rowIndex <= virtState.startIndex + virtState.chunkSize;	15✔
41	const isNext = this.activeNode.row < rowIndex;	15✔
42	const targetLayoutIndex = isNext ? null : this.grid.childLayoutKeys.length - 1;	15✔
43	if (inView) {	15!
44	this._moveToChild(rowIndex, visibleColIndex, isNext, targetLayoutIndex, cb);	15✔
45	} else {
46	let scrollAmount = this.grid.verticalScrollContainer.getScrollForIndex(rowIndex, !isNext);	×
47	scrollAmount += isNext ? 1 : -1;	×
48	this.grid.verticalScrollContainer.getScroll().scrollTop = scrollAmount;	×
49	this._pendingNavigation = true;	×
50	this.grid.verticalScrollContainer.chunkLoad.pipe(first()).subscribe(() => {	×
51	this._moveToChild(rowIndex, visibleColIndex, isNext, targetLayoutIndex, cb);	×
52	this._pendingNavigation = false;	×
53	});
54	}
55	return;	15✔
56	}
57
58	const isLast = rowIndex === this.grid.dataView.length;	34✔
59	if ((rowIndex === -1 \|\| isLast) &&	34✔
60	this.grid.parent !== null) {
61	// reached end of child grid
62	const nextSiblingIndex = this.nextSiblingIndex(isLast);	10✔
63	if (nextSiblingIndex !== null) {	10✔
64	this.grid.parent.navigation._moveToChild(this.grid.childRow.index, visibleColIndex, isLast, nextSiblingIndex, cb);	4✔
65	} else {
66	this._moveToParent(isLast, visibleColIndex, cb);	6✔
67	}
68	return;	10✔
69	}
70
71	if (this.grid.parent) {	24✔
72	const isNext = this.activeNode && typeof this.activeNode.row === 'number' ? rowIndex > this.activeNode.row : false;	16✔
73	const cbHandler = (args) => {	16✔
74	this._handleScrollInChild(rowIndex, isNext);	15✔
75	cb(args);	15✔
76	};
77	if (!this.activeNode) {	16!
78	this.activeNode = { row: null, column: null };	×
79	}
80	super.navigateInBody(rowIndex, visibleColIndex, cbHandler);	16✔
81	return;	16✔
82	}
83
84	if (!this.activeNode) {	8!
85	this.activeNode = { row: null, column: null };	×
86	}
87	super.navigateInBody(rowIndex, visibleColIndex, cb);	8✔
88	}
89
90	public override shouldPerformVerticalScroll(index, visibleColumnIndex = -1, isNext?) {	×
91	const targetRec = this.grid.dataView[index];	140✔
92	if (this.grid.isChildGridRecord(targetRec)) {	140✔
93	const scrollAmount = this.grid.verticalScrollContainer.getScrollForIndex(index, !isNext);	2✔
94	const currScroll = this.grid.verticalScrollContainer.getScroll().scrollTop;	2✔
95	const shouldScroll = !isNext ? scrollAmount > currScroll : currScroll < scrollAmount;	2!
96	return shouldScroll;	2✔
97	} else {
98	return super.shouldPerformVerticalScroll(index, visibleColumnIndex);	138✔
99	}
100	}
101
102	public override focusTbody(event) {
103	if (!this.activeNode \|\| this.activeNode.row === null) {	95!
104	this.activeNode = {	×
105	row: 0,
106	column: 0
107	};
108
109	this.grid.navigateTo(0, 0, (obj) => {	×
110	this.grid.clearCellSelection();	×
111	obj.target.activate(event);	×
112	});
113
114	} else {
115	super.focusTbody(event);	95✔
116	}
117	}
118
119	protected nextSiblingIndex(isNext) {
120	const layoutKey = this.grid.childRow.layout.key;	10✔
121	const layoutIndex = this.grid.parent.childLayoutKeys.indexOf(layoutKey);	10✔
122	const nextIndex = isNext ? layoutIndex + 1 : layoutIndex - 1;	10✔
123	if (nextIndex <= this.grid.parent.childLayoutKeys.length - 1 && nextIndex > -1) {	10✔
124	return nextIndex;	4✔
125	} else {
126	return null;	6✔
127	}
128	}
129
130	/**
131	* Handles scrolling in child grid and ensures target child row is in main grid view port.
132	*
133	* @param rowIndex The row index which should be in view.
134	* @param isNext Optional. Whether we are navigating to next. Used to determine scroll direction.
135	* @param cb Optional.Callback function called when operation is complete.
136	*/
137	protected _handleScrollInChild(rowIndex: number, isNext?: boolean, cb?: () => void) {
138	const shouldScroll = this.shouldPerformVerticalScroll(rowIndex, -1, isNext);	31✔
139	if (shouldScroll) {	31✔
140	this.grid.navigation.performVerticalScrollToCell(rowIndex, -1, () => {	9✔
141	this.positionInParent(rowIndex, isNext, cb);	9✔
142	});
143	} else {
144	this.positionInParent(rowIndex, isNext, cb);	22✔
145	}
146	}
147
148	/**
149	*
150	* @param rowIndex Row index that should come in view.
151	* @param isNext Whether we are navigating to next. Used to determine scroll direction.
152	* @param cb Optional.Callback function called when operation is complete.
153	*/
154	protected positionInParent(rowIndex, isNext, cb?: () => void) {
155	const row = this.grid.gridAPI.get_row_by_index(rowIndex);	31✔
156	if (!row) {	31!
157	if (cb) {	×
158	cb();	×
159	}
160	return;	×
161	}
162	const positionInfo = this.getPositionInfo(row, isNext);	31✔
163	if (!positionInfo.inView) {	31✔
164	// stop event from triggering multiple times before scrolling is complete.
165	this._pendingNavigation = true;	8✔
166	const scrollableGrid = isNext ? this.getNextScrollableDown(this.grid) : this.getNextScrollableUp(this.grid);	8✔
167	scrollableGrid.grid.verticalScrollContainer.recalcUpdateSizes();	8✔
168	scrollableGrid.grid.verticalScrollContainer.addScrollTop(positionInfo.offset);	8✔
169	scrollableGrid.grid.verticalScrollContainer.chunkLoad.pipe(first()).subscribe(() => {	8✔
170	this._pendingNavigation = false;	8✔
171	if (cb) {	8✔
172	cb();	1✔
173	}
174	});
175	} else {
176	if (cb) {	23✔
177	cb();	15✔
178	}
179	}
180	}
181
182	/**
183	* Moves navigation to child grid.
184	*
185	* @param parentRowIndex The parent row index, at which the child grid is rendered.
186	* @param childLayoutIndex Optional. The index of the child row island to which the child grid belongs to. Uses first if not set.
187	*/
188	protected _moveToChild(parentRowIndex: number, visibleColIndex: number, isNext: boolean, childLayoutIndex?: number,
189	cb?: (arg: any) => void) {
190	const ri = typeof childLayoutIndex !== 'number' ?	20✔
191	this.grid.childLayoutList.first : this.grid.childLayoutList.toArray()[childLayoutIndex];
192	const rowId = this.grid.dataView[parentRowIndex].rowID;	20✔
193	const pathSegment: IPathSegment = {	20✔
194	rowID: rowId,
195	rowKey: rowId,
196	rowIslandKey: ri.key
197	};
198	const childGrid = this.grid.gridAPI.getChildGrid([pathSegment]);	20✔
199	const targetIndex = isNext ? 0 : childGrid.dataView.length - 1;	20✔
200	const targetRec = childGrid.dataView[targetIndex];	20✔
201	if (!targetRec) {	20✔
202	// if no target rec, then move on in next sibling or parent
203	childGrid.navigation.navigateInBody(targetIndex, visibleColIndex, cb);	4✔
204	return;	4✔
205	}
206	if (childGrid.isChildGridRecord(targetRec)) {	16✔
207	// if target is a child grid record should move into it.
208	this.grid.navigation.activeNode.row = null;	1✔
209	childGrid.navigation.activeNode = { row: targetIndex, column: this.activeNode.column};	1✔
210	childGrid.navigation._handleScrollInChild(targetIndex, isNext, () => {	1✔
211	const targetLayoutIndex = isNext ? 0 : childGrid.childLayoutList.toArray().length - 1;	1!
212	childGrid.navigation._moveToChild(targetIndex, visibleColIndex, isNext, targetLayoutIndex, cb);	1✔
213	});
214	return;	1✔
215	}
216
217	const childGridNav = childGrid.navigation;	15✔
218	this.clearActivation();	15✔
219	const lastVisibleIndex = childGridNav.lastColumnIndex;	15✔
220	const columnIndex = visibleColIndex <= lastVisibleIndex ? visibleColIndex : lastVisibleIndex;	15✔
221	childGridNav.activeNode = { row: targetIndex, column: columnIndex};	15✔
222	childGrid.tbody.nativeElement.focus({preventScroll: true});	15✔
223	this._pendingNavigation = false;	15✔
224	childGrid.navigation._handleScrollInChild(targetIndex, isNext, () => {	15✔
225	childGrid.navigateTo(targetIndex, columnIndex, cb);	15✔
226	});
227	}
228
229	/**
230	* Moves navigation back to parent grid.
231	*
232	* @param rowIndex
233	*/
234	protected _moveToParent(isNext: boolean, columnIndex, cb?) {
235	const indexInParent = this.grid.childRow.index;	6✔
236	const hasNextTarget = this.hasNextTarget(this.grid.parent, indexInParent, isNext);	6✔
237	if (!hasNextTarget) {	6!
238	return;	×
239	}
240	this.clearActivation();	6✔
241	const targetRowIndex = isNext ? indexInParent + 1 : indexInParent - 1;	6✔
242	const lastVisibleIndex = this.grid.parent.navigation.lastColumnIndex;	6✔
243	const nextColumnIndex = columnIndex <= lastVisibleIndex ? columnIndex : lastVisibleIndex;	6!
244	this._pendingNavigation = true;	6✔
245	const cbFunc = (args) => {	6✔
246	this._pendingNavigation = false;	6✔
247	cb(args);	6✔
248	args.target.grid.tbody.nativeElement.focus();	6✔
249	};
250	this.grid.parent.navigation.navigateInBody(targetRowIndex, nextColumnIndex, cbFunc);	6✔
251	}
252
253	/**
254	* Gets information on the row position relative to the root grid view port.
255	* Returns whether the row is in view and its offset.
256	*
257	* @param rowObj
258	* @param isNext
259	*/
260	protected getPositionInfo(row: RowType, isNext: boolean) {
261	// XXX: Fix type
262	let rowElem = row.nativeElement;	31✔
263	if ((row as any).layout) {	31✔
264	const childLayoutKeys = this.grid.childLayoutKeys;	1✔
265	const riKey = isNext ? childLayoutKeys[0] : childLayoutKeys[childLayoutKeys.length - 1];	1!
266	const pathSegment: IPathSegment = {	1✔
267	rowID: row.data.rowID, rowKey: row.data.rowID,
268	rowIslandKey: riKey
269	};
270	const childGrid = this.grid.gridAPI.getChildGrid([pathSegment]);	1✔
271	rowElem = childGrid.tfoot.nativeElement;	1✔
272	}
273	const gridBottom = this._getMinBottom(this.grid);	31✔
274	const diffBottom =
275	rowElem.getBoundingClientRect().bottom - gridBottom;	31✔
276	const gridTop = this._getMaxTop(this.grid);	31✔
277	const diffTop = rowElem.getBoundingClientRect().bottom -	31✔
278	rowElem.offsetHeight - gridTop;
279	// Adding Math.Round because Chrome has some inconsistencies when the page is zoomed
280	const isInView = isNext ? Math.round(diffBottom) <= 0 : Math.round(diffTop) >= 0;	31✔
281	const calcOffset = isNext ? diffBottom : diffTop;	31✔
282
283	return { inView: isInView, offset: calcOffset };	31✔
284	}
285
286	/**
287	* Gets closest element by its tag name.
288	*
289	* @param sourceElem The element from which to start the search.
290	* @param targetTag The target element tag name, for which to search.
291	*/
292	protected getClosestElemByTag(sourceElem, targetTag) {
293	let result = sourceElem;	47✔
294	while (result !== null && result.nodeType === 1) {	47✔
295	if (result.tagName.toLowerCase() === targetTag.toLowerCase()) {	181✔
296	return result;	47✔
297	}
298	result = result.parentNode;	134✔
299	}
300	return null;	×
301	}
302
303	private clearActivation() {
304	// clear if previous activation exists.
305	if (this.activeNode && Object.keys(this.activeNode).length) {	521✔
306	this.activeNode = Object.assign({} as IActiveNode);	46✔
307	}
308	}
309
310	private hasNextTarget(grid: GridType, index: number, isNext: boolean) {
311	const targetRowIndex = isNext ? index + 1 : index - 1;	6✔
312	const hasTargetRecord = !!grid.dataView[targetRowIndex];	6✔
313	if (hasTargetRecord) {	6!
314	return true;	6✔
315	} else {
316	let hasTargetRecordInParent = false;	×
317	if (grid.parent) {	×
318	const indexInParent = grid.childRow.index;	×
319	hasTargetRecordInParent = this.hasNextTarget(grid.parent, indexInParent, isNext);	×
320	}
321	return hasTargetRecordInParent;	×
322	}
323	}
324
325	/**
326	* Gets the max top view in the current grid hierarchy.
327	*
328	* @param grid
329	*/
330	private _getMaxTop(grid) {
331	let currGrid = grid;	31✔
332	let top = currGrid.tbody.nativeElement.getBoundingClientRect().top;	31✔
333	while (currGrid.parent) {	31✔
334	currGrid = currGrid.parent;	34✔
335	const pinnedRowsHeight = currGrid.hasPinnedRecords && currGrid.isRowPinningToTop ? currGrid.pinnedRowHeight : 0;	34!
336	top = Math.max(top, currGrid.tbody.nativeElement.getBoundingClientRect().top + pinnedRowsHeight);	34✔
337	}
338	return top;	31✔
339	}
340
341	/**
342	* Gets the min bottom view in the current grid hierarchy.
343	*
344	* @param grid
345	*/
346	private _getMinBottom(grid) {
347	let currGrid = grid;	31✔
348	let bottom = currGrid.tbody.nativeElement.getBoundingClientRect().bottom;	31✔
349	while (currGrid.parent) {	31✔
350	currGrid = currGrid.parent;	34✔
351	const pinnedRowsHeight = currGrid.hasPinnedRecords && !currGrid.isRowPinningToTop ? currGrid.pinnedRowHeight : 0;	34!
352	bottom = Math.min(bottom, currGrid.tbody.nativeElement.getBoundingClientRect().bottom - pinnedRowsHeight);	34✔
353	}
354	return bottom;	31✔
355	}
356
357	/**
358	* Finds the next grid that allows scrolling down.
359	*
360	* @param grid The grid from which to begin the search.
361	*/
362	private getNextScrollableDown(grid) {
363	let currGrid = grid.parent;	5✔
364	if (!currGrid) {	5!
365	return { grid, prev: null };	×
366	}
367	let scrollTop = currGrid.verticalScrollContainer.scrollPosition;	5✔
368	let scrollHeight = currGrid.verticalScrollContainer.getScroll().scrollHeight;	5✔
369	let nonScrollable = scrollHeight === 0 \|\|	5✔
370	Math.round(scrollTop + currGrid.verticalScrollContainer.igxForContainerSize) === scrollHeight;
371	let prev = grid;	5✔
372	while (nonScrollable && currGrid.parent !== null) {	5!
373	prev = currGrid;	×
374	currGrid = currGrid.parent;	×
375	scrollTop = currGrid.verticalScrollContainer.scrollPosition;	×
376	scrollHeight = currGrid.verticalScrollContainer.getScroll().scrollHeight;	×
377	nonScrollable = scrollHeight === 0 \|\|	×
378	Math.round(scrollTop + currGrid.verticalScrollContainer.igxForContainerSize) === scrollHeight;
379	}
380	return { grid: currGrid, prev };	5✔
381	}
382
383	/**
384	* Finds the next grid that allows scrolling up.
385	*
386	* @param grid The grid from which to begin the search.
387	*/
388	private getNextScrollableUp(grid) {
389	let currGrid = grid.parent;	3✔
390	if (!currGrid) {	3!
391	return { grid, prev: null };	×
392	}
393	let nonScrollable = currGrid.verticalScrollContainer.scrollPosition === 0;	3✔
394	let prev = grid;	3✔
395	while (nonScrollable && currGrid.parent !== null) {	3✔
396	prev = currGrid;	1✔
397	currGrid = currGrid.parent;	1✔
398	nonScrollable = currGrid.verticalScrollContainer.scrollPosition === 0;	1✔
399	}
400	return { grid: currGrid, prev };	3✔
401	}
402	}

IgniteUI / igniteui-angular / 12298124880

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