14441306397

Committed 14 Apr 2025 08:42AM CUT coverage: 91.617% (-0.01%) from 91.629%

Build # 14441306397

Build Type

Pull #15517

github

Committed by

web-flow

Commit Message

Merge ef6afccab into fb9119e28

Pull Request Pull Request #15517: Sizing panes correctly with minSize is used when the browser is shrinked

Run Details

13322 of 15586 branches covered (85.47%)

3 of 7 new or added lines in 1 file covered. (42.86%)

1 existing line in 1 file now uncovered.

26863 of 29321 relevant lines covered (91.62%)

34009.94 hits per line

Source File
Press 'n' to go to next uncovered line, 'b' for previous

89.44

/projects/igniteui-angular/src/lib/splitter/splitter.component.ts

import { DOCUMENT } from '@angular/common';
import { AfterContentInit, Component, ContentChildren, ElementRef, EventEmitter, HostBinding, HostListener, Inject, Input, Output, QueryList, booleanAttribute, forwardRef } from '@angular/core';
import { DragDirection, IDragMoveEventArgs, IDragStartEventArgs, IgxDragDirective, IgxDragIgnoreDirective } from '../directives/drag-drop/drag-drop.directive';
import { IgxSplitterPaneComponent } from './splitter-pane/splitter-pane.component';

/**
 * An enumeration that defines the `SplitterComponent` panes orientation.
 */
export enum SplitterType {
    Horizontal,
    Vertical
}

export declare interface ISplitterBarResizeEventArgs {
    pane: IgxSplitterPaneComponent;
    sibling: IgxSplitterPaneComponent;
}

/**
 * Provides a framework for a simple layout, splitting the view horizontally or vertically
 * into multiple smaller resizable and collapsible areas.
 *
 * @igxModule IgxSplitterModule
 *
 * @igxParent Layouts
 *
 * @igxTheme igx-splitter-theme
 *
 * @igxKeywords splitter panes layout
 *
 * @igxGroup presentation
 *
 * @example
 * ```html
 * <igx-splitter>
 *  <igx-splitter-pane>
 *      ...
 *  </igx-splitter-pane>
 *  <igx-splitter-pane>
 *      ...
 *  </igx-splitter-pane>
 * </igx-splitter>
 * ```
 */
@Component({
    selector: 'igx-splitter',
    templateUrl: './splitter.component.html',
    imports: [forwardRef(() => IgxSplitBarComponent)]
})
export class IgxSplitterComponent implements AfterContentInit {
    /**
     * Gets the list of splitter panes.
     *
     * @example
     * ```typescript
     * const panes = this.splitter.panes;
     * ```
     */
    @ContentChildren(IgxSplitterPaneComponent, { read: IgxSplitterPaneComponent })
    public panes!: QueryList<IgxSplitterPaneComponent>;

    /**
    * @hidden
    * @internal
    */
    @HostBinding('class.igx-splitter')
    public cssClass = 'igx-splitter';

    /**
     * @hidden @internal
     * Gets/Sets the `overflow` property of the current splitter.
     */
    @HostBinding('style.overflow')
    public overflow = 'hidden';

    /**
     * @hidden @internal
     * Sets/Gets the `display` property of the current splitter.
     */
    @HostBinding('style.display')
    public display = 'flex';

    /**
     * @hidden
     * @internal
     */
    @HostBinding('attr.aria-orientation')
    public get orientation() {
        return this.type === SplitterType.Horizontal ? 'horizontal' : 'vertical';
    }

    /**
     * Event fired when resizing of panes starts.
     *
     * @example
     * ```html
     * <igx-splitter (resizeStart)='resizeStart($event)'>
     *  <igx-splitter-pane>...</igx-splitter-pane>
     * </igx-splitter>
     * ```
     */
    @Output()
    public resizeStart = new EventEmitter<ISplitterBarResizeEventArgs>();

    /**
     * Event fired when resizing of panes is in progress.
     *
     * @example
     * ```html
     * <igx-splitter (resizing)='resizing($event)'>
     *  <igx-splitter-pane>...</igx-splitter-pane>
     * </igx-splitter>
     * ```
     */
    @Output()
    public resizing = new EventEmitter<ISplitterBarResizeEventArgs>();


    /**
     * Event fired when resizing of panes ends.
     *
     * @example
     * ```html
     * <igx-splitter (resizeEnd)='resizeEnd($event)'>
     *  <igx-splitter-pane>...</igx-splitter-pane>
     * </igx-splitter>
     * ```
     */
    @Output()
    public resizeEnd = new EventEmitter<ISplitterBarResizeEventArgs>();

    private _type: SplitterType = SplitterType.Horizontal;

    /**
     * @hidden @internal
     * A field that holds the initial size of the main `IgxSplitterPaneComponent` in each pair of panes divided by a splitter bar.
     */
    private initialPaneSize!: number;

    /**
     * @hidden @internal
     * A field that holds the initial size of the sibling pane in each pair of panes divided by a gripper.
     * @memberof SplitterComponent
     */
    private initialSiblingSize!: number;

    /**
     * @hidden @internal
     * The main pane in each pair of panes divided by a gripper.
     */
    private pane!: IgxSplitterPaneComponent;

    /**
     * The sibling pane in each pair of panes divided by a splitter bar.
     */
    private sibling!: IgxSplitterPaneComponent;

    constructor(@Inject(DOCUMENT) public document, private elementRef: ElementRef) { }
    /**
     * Gets/Sets the splitter orientation.
     *
     * @example
     * ```html
     * <igx-splitter [type]="type">...</igx-splitter>
     * ```
     */
    @Input()
    public get type() {
        return this._type;
    }
    public set type(value) {
        this._type = value;
        this.resetPaneSizes();
        this.panes?.notifyOnChanges();
    }

    /**
     * Sets the visibility of the handle and expanders in the splitter bar.
     * False by default
     *
     * @example
     * ```html
     * <igx-splitter [nonCollapsible]='true'>
     * </igx-splitter>
     * ```
     */
    @Input({ transform: booleanAttribute })
    public nonCollapsible = false; // Input to toggle showing/hiding expanders

    /**
     * @hidden @internal
     * Gets the `flex-direction` property of the current `SplitterComponent`.
     */
    @HostBinding('style.flex-direction')
    public get direction(): string {
        return this.type === SplitterType.Horizontal ? 'row' : 'column';
    }

    /** @hidden @internal */
    public ngAfterContentInit(): void {
        this.initPanes();
        this.panes.changes.subscribe(() => {
            this.initPanes();
        });
    }

    /**
     * @hidden @internal
     * This method performs  initialization logic when the user starts dragging the splitter bar between each pair of panes.
     * @param pane - the main pane associated with the currently dragged bar.
     */
    public onMoveStart(pane: IgxSplitterPaneComponent) {
        const panes = this.panes.toArray();
        this.pane = pane;
        this.sibling = panes[panes.indexOf(this.pane) + 1];

        const paneRect = this.pane.element.getBoundingClientRect();
        this.initialPaneSize = this.type === SplitterType.Horizontal ? paneRect.width : paneRect.height;

        const siblingRect = this.sibling.element.getBoundingClientRect();
        this.initialSiblingSize = this.type === SplitterType.Horizontal ? siblingRect.width : siblingRect.height;
        const args: ISplitterBarResizeEventArgs = { pane: this.pane, sibling: this.sibling };
        this.resizeStart.emit(args);
    }

    /**
     * @hidden @internal
     * This method performs calculations concerning the sizes of each pair of panes when the bar between them is dragged.
     * @param delta - The difference along the X (or Y) axis between the initial and the current point when dragging the bar.
     */
    public onMoving(delta: number) {
        const [ paneSize, siblingSize ] = this.calcNewSizes(delta);

        this.pane.dragSize = paneSize + 'px';
        this.sibling.dragSize = siblingSize + 'px';

        const args: ISplitterBarResizeEventArgs = { pane: this.pane, sibling: this.sibling };
        this.resizing.emit(args);
    }

    public onMoveEnd(delta: number) {
        let [ paneSize, siblingSize ] = this.calcNewSizes(delta);

        if (paneSize + siblingSize > this.getTotalSize() && delta < 0) {
            paneSize = this.getTotalSize();
            siblingSize = 0;
        } else if(paneSize + siblingSize > this.getTotalSize() && delta > 0) {
            paneSize = 0;
            siblingSize = this.getTotalSize();
        }

        if (this.pane.isPercentageSize) {
            // handle % resizes
            const totalSize = this.getTotalSize();
            const percentPaneSize = (paneSize / totalSize) * 100;
            this.pane.size = percentPaneSize + '%';
        } else {
            // px resize
            this.pane.size = paneSize + 'px';
        }

        if (this.sibling.isPercentageSize) {
            // handle % resizes
            const totalSize = this.getTotalSize();
            const percentSiblingPaneSize = (siblingSize / totalSize) * 100;
            this.sibling.size = percentSiblingPaneSize + '%';
        } else {
            // px resize
            this.sibling.size = siblingSize + 'px';
        }
        this.pane.dragSize = null;
        this.sibling.dragSize = null;

        const args: ISplitterBarResizeEventArgs = { pane: this.pane, sibling: this.sibling };
        this.resizeEnd.emit(args);
    }

    /** @hidden @internal */
    public getPaneSiblingsByOrder(order: number, barIndex: number): Array<IgxSplitterPaneComponent> {
        const panes = this.panes.toArray();
        const prevPane = panes[order - barIndex - 1];
        const nextPane = panes[order - barIndex];
        const siblings = [prevPane, nextPane];
        return siblings;
    }

    private getTotalSize() {
        const computed = this.document.defaultView.getComputedStyle(this.elementRef.nativeElement);
        const totalSize = this.type === SplitterType.Horizontal ? computed.getPropertyValue('width') : computed.getPropertyValue('height');
        return parseFloat(totalSize);
    }


    /**
     * @hidden @internal
     * This method inits panes with properties.
     */
    private initPanes() {
        this.panes.forEach(pane => {
            pane.owner = this;
            if (this.type === SplitterType.Horizontal) {
                pane.minWidth = pane.minSize ?? '0';
                pane.maxWidth = pane.maxSize ?? '100%';
            } else {
                pane.minHeight = pane.minSize ?? '0';
                pane.maxHeight = pane.maxSize ?? '100%';
            }
        });
        this.assignFlexOrder();
        if (this.panes.filter(x => x.collapsed).length > 0) {
            // if any panes are collapsed, reset sizes.
            this.resetPaneSizes();
        }
    }

    /**
     * @hidden @internal
     * This method reset pane sizes.
     */
    private resetPaneSizes() {
        if (this.panes) {
            // if type is changed runtime, should reset sizes.
            this.panes.forEach(x => {
                x.size = 'auto'
                x.minWidth = '0';
                x.maxWidth = '100%';
                x.minHeight = '0';
                x.maxHeight = '100%';
            });
        }
    }

    /**
     * @hidden @internal
     * This method assigns the order of each pane.
     */
    private assignFlexOrder() {
        let k = 0;
        this.panes.forEach((pane: IgxSplitterPaneComponent) => {
            pane.order = k;
            k += 2;
        });
    }

    /**
     * @hidden @internal
     * Calculates new sizes for the panes based on move delta and initial sizes
     */
    private calcNewSizes(delta: number): [number, number] {
        const min = parseInt(this.pane.minSize, 10) || 0;
        const minSibling = parseInt(this.sibling.minSize, 10) || 0;
        const max = parseInt(this.pane.maxSize, 10) || this.initialPaneSize + this.initialSiblingSize - minSibling;
        const maxSibling = parseInt(this.sibling.maxSize, 10) || this.initialPaneSize + this.initialSiblingSize - min;

        if (delta < 0) {
            const maxPossibleDelta = Math.min(
                max - this.initialPaneSize,
                this.initialSiblingSize - minSibling,
            )
            delta = Math.min(maxPossibleDelta, Math.abs(delta)) * -1;
        } else {
            const maxPossibleDelta = Math.min(
                this.initialPaneSize - min,
                maxSibling - this.initialSiblingSize
            )
            delta = Math.min(maxPossibleDelta, Math.abs(delta));
        }
        return [this.initialPaneSize - delta, this.initialSiblingSize + delta];
    }
}

/**
 * @hidden @internal
 * Represents the draggable bar that visually separates panes and allows for changing their sizes.
 */
@Component({
    selector: 'igx-splitter-bar',
    templateUrl: './splitter-bar.component.html',
    imports: [IgxDragDirective, IgxDragIgnoreDirective]
})
export class IgxSplitBarComponent {
    /**
     * Set css class to the host element.
     */
    @HostBinding('class.igx-splitter-bar-host')
    public cssClass = 'igx-splitter-bar-host';

     /**
     * Sets the visibility of the handle and expanders in the splitter bar.
     */
    @Input({ transform: booleanAttribute })
    public nonCollapsible;

    /**
     * Gets/Sets the orientation.
     */
    @Input()
    public type: SplitterType = SplitterType.Horizontal;

    /**
     * Sets/gets the element order.
     */
    @HostBinding('style.order')
    @Input()
    public order!: number;

    /**
     * @hidden
     * @internal
     */
    @HostBinding('attr.tabindex')
    public get tabindex() {
        return this.resizeDisallowed ? null : 0;
    }

    /**
     * @hidden
     * @internal
     */
    @HostBinding('attr.aria-orientation')
    public get orientation() {
        return this.type === SplitterType.Horizontal ? 'horizontal' : 'vertical';
    }

    /**
     * @hidden
     * @internal
     */
    public get cursor() {
        if (this.resizeDisallowed) {
            return '';
        }
        return this.type === SplitterType.Horizontal ? 'col-resize' : 'row-resize';
    }

    /**
     * Sets/gets the `SplitPaneComponent` associated with the current `SplitBarComponent`.
     *
     * @memberof SplitBarComponent
     */
    @Input()
    public pane!: IgxSplitterPaneComponent;

    /**
     * Sets/Gets the `SplitPaneComponent` sibling components associated with the current `SplitBarComponent`.
     */
    @Input()
    public siblings!: Array<IgxSplitterPaneComponent>;

    /**
     * An event that is emitted whenever we start dragging the current `SplitBarComponent`.
     */
    @Output()
    public moveStart = new EventEmitter<IgxSplitterPaneComponent>();

    /**
     * An event that is emitted while we are dragging the current `SplitBarComponent`.
     */
    @Output()
    public moving = new EventEmitter<number>();

    @Output()
    public movingEnd = new EventEmitter<number>();

    /**
     * A temporary holder for the pointer coordinates.
     */
    private startPoint!: number;

    private interactionKeys = new Set('right down left up arrowright arrowdown arrowleft arrowup'.split(' '));

    /**
     * @hidden @internal
     */
    public get prevButtonHidden() {
        return this.siblings[0].collapsed && !this.siblings[1].collapsed;
    }

    /**
     * @hidden @internal
     */
    @HostListener('keydown', ['$event'])
    public keyEvent(event: KeyboardEvent) {
        const key = event.key.toLowerCase();
        const ctrl = event.ctrlKey;
        event.stopPropagation();
        if (this.interactionKeys.has(key)) {
            event.preventDefault();
        }
        switch (key) {
            case 'arrowup':
            case 'up':
                if (this.type === SplitterType.Vertical) {
                    if (ctrl) {
                        this.onCollapsing(false);
                        break;
                    }
                    if (!this.resizeDisallowed) {
                        event.preventDefault();
                        this.moveStart.emit(this.pane);
                        this.moving.emit(10);
                    }
                }
                break;
            case 'arrowdown':
            case 'down':
                if (this.type === SplitterType.Vertical) {
                    if (ctrl) {
                        this.onCollapsing(true);
                        break;
                    }
                    if (!this.resizeDisallowed) {
                        event.preventDefault();
                        this.moveStart.emit(this.pane);
                        this.moving.emit(-10);
                    }
                }
                break;
            case 'arrowleft':
            case 'left':
                if (this.type === SplitterType.Horizontal) {
                    if (ctrl) {
                        this.onCollapsing(false);
                        break;
                    }
                    if (!this.resizeDisallowed) {
                        event.preventDefault();
                        this.moveStart.emit(this.pane);
                        this.moving.emit(10);
                    }
                }
                break;
            case 'arrowright':
            case 'right':
                if (this.type === SplitterType.Horizontal) {
                    if (ctrl) {
                        this.onCollapsing(true);
                        break;
                    }
                    if (!this.resizeDisallowed) {
                        event.preventDefault();
                        this.moveStart.emit(this.pane);
                        this.moving.emit(-10);
                    }
                }
                break;
            default:
                break;
        }
    }

    /**
     * @hidden @internal
     */
    public get dragDir() {
        return this.type === SplitterType.Horizontal ? DragDirection.VERTICAL : DragDirection.HORIZONTAL;
    }

    /**
     * @hidden @internal
     */
    public get nextButtonHidden() {
        return this.siblings[1].collapsed && !this.siblings[0].collapsed;
    }

    /**
     * @hidden @internal
     */
    public onDragStart(event: IDragStartEventArgs) {
        if (this.resizeDisallowed) {
            event.cancel = true;
            return;
        }
        this.startPoint = this.type === SplitterType.Horizontal ? event.startX : event.startY;
        this.moveStart.emit(this.pane);
    }

    /**
     * @hidden @internal
     */
    public onDragMove(event: IDragMoveEventArgs) {
        const isHorizontal = this.type === SplitterType.Horizontal;
        const curr = isHorizontal ? event.pageX : event.pageY;
        const delta = this.startPoint - curr;
        if (delta !== 0) {
            this.moving.emit(delta);
            event.cancel = true;
            event.owner.element.nativeElement.style.transform = '';
        }
    }

    public onDragEnd(event: any) {
        const isHorizontal = this.type === SplitterType.Horizontal;
        const curr = isHorizontal ? event.pageX : event.pageY;
        const delta = this.startPoint - curr;
        if (delta !== 0) {
            this.movingEnd.emit(delta);
        }
    }

    protected get resizeDisallowed() {
        const relatedTabs = this.siblings;
        return !!relatedTabs.find(x => x.resizable === false || x.collapsed === true);
    }

    /**
     * @hidden @internal
     */
    public onCollapsing(next: boolean) {
        const prevSibling = this.siblings[0];
        const nextSibling = this.siblings[1];
        let target;
        if (next) {
            // if next is clicked when prev pane is hidden, show prev pane, else hide next pane.
            target = prevSibling.collapsed ? prevSibling : nextSibling;
        } else {
            // if prev is clicked when next pane is hidden, show next pane, else hide prev pane.
            target = nextSibling.collapsed ? nextSibling : prevSibling;
        }
        target.toggle();
    }
}

1	import { DOCUMENT } from '@angular/common';
2	import { AfterContentInit, Component, ContentChildren, ElementRef, EventEmitter, HostBinding, HostListener, Inject, Input, Output, QueryList, booleanAttribute, forwardRef } from '@angular/core';
3	import { DragDirection, IDragMoveEventArgs, IDragStartEventArgs, IgxDragDirective, IgxDragIgnoreDirective } from '../directives/drag-drop/drag-drop.directive';
4	import { IgxSplitterPaneComponent } from './splitter-pane/splitter-pane.component';
5
6	/**
7	* An enumeration that defines the `SplitterComponent` panes orientation.
8	*/
9	export enum SplitterType {	2✔
10	Horizontal,	2✔
11	Vertical	2✔
12	}
13
14	export declare interface ISplitterBarResizeEventArgs {
15	pane: IgxSplitterPaneComponent;
16	sibling: IgxSplitterPaneComponent;
17	}
18
19	/**
20	* Provides a framework for a simple layout, splitting the view horizontally or vertically
21	* into multiple smaller resizable and collapsible areas.
22	*
23	* @igxModule IgxSplitterModule
24	*
25	* @igxParent Layouts
26	*
27	* @igxTheme igx-splitter-theme
28	*
29	* @igxKeywords splitter panes layout
30	*
31	* @igxGroup presentation
32	*
33	* @example
34	* ```html
35	* <igx-splitter>
36	* <igx-splitter-pane>
37	* ...
38	* </igx-splitter-pane>
39	* <igx-splitter-pane>
40	* ...
41	* </igx-splitter-pane>
42	* </igx-splitter>
43	* ```
44	*/
45	@Component({
46	selector: 'igx-splitter',
47	templateUrl: './splitter.component.html',
48	imports: [forwardRef(() => IgxSplitBarComponent)]	58✔
49	})
50	export class IgxSplitterComponent implements AfterContentInit {	2✔
51	/**
52	* Gets the list of splitter panes.
53	*
54	* @example
55	* ```typescript
56	* const panes = this.splitter.panes;
57	* ```
58	*/
59	@ContentChildren(IgxSplitterPaneComponent, { read: IgxSplitterPaneComponent })
60	public panes!: QueryList<IgxSplitterPaneComponent>;
61
62	/**
63	* @hidden
64	* @internal
65	*/
66	@HostBinding('class.igx-splitter')
67	public cssClass = 'igx-splitter';	22✔
68
69	/**
70	* @hidden @internal
71	* Gets/Sets the `overflow` property of the current splitter.
72	*/
73	@HostBinding('style.overflow')
74	public overflow = 'hidden';	22✔
75
76	/**
77	* @hidden @internal
78	* Sets/Gets the `display` property of the current splitter.
79	*/
80	@HostBinding('style.display')
81	public display = 'flex';	22✔
82
83	/**
84	* @hidden
85	* @internal
86	*/
87	@HostBinding('attr.aria-orientation')
88	public get orientation() {
89	return this.type === SplitterType.Horizontal ? 'horizontal' : 'vertical';	160✔
90	}
91
92	/**
93	* Event fired when resizing of panes starts.
94	*
95	* @example
96	* ```html
97	* <igx-splitter (resizeStart)='resizeStart($event)'>
98	* <igx-splitter-pane>...</igx-splitter-pane>
99	* </igx-splitter>
100	* ```
101	*/
102	@Output()
103	public resizeStart = new EventEmitter<ISplitterBarResizeEventArgs>();	22✔
104
105	/**
106	* Event fired when resizing of panes is in progress.
107	*
108	* @example
109	* ```html
110	* <igx-splitter (resizing)='resizing($event)'>
111	* <igx-splitter-pane>...</igx-splitter-pane>
112	* </igx-splitter>
113	* ```
114	*/
115	@Output()
116	public resizing = new EventEmitter<ISplitterBarResizeEventArgs>();	22✔
117
118
119	/**
120	* Event fired when resizing of panes ends.
121	*
122	* @example
123	* ```html
124	* <igx-splitter (resizeEnd)='resizeEnd($event)'>
125	* <igx-splitter-pane>...</igx-splitter-pane>
126	* </igx-splitter>
127	* ```
128	*/
129	@Output()
130	public resizeEnd = new EventEmitter<ISplitterBarResizeEventArgs>();	22✔
131
132	private _type: SplitterType = SplitterType.Horizontal;	22✔
133
134	/**
135	* @hidden @internal
136	* A field that holds the initial size of the main `IgxSplitterPaneComponent` in each pair of panes divided by a splitter bar.
137	*/
138	private initialPaneSize!: number;
139
140	/**
141	* @hidden @internal
142	* A field that holds the initial size of the sibling pane in each pair of panes divided by a gripper.
143	* @memberof SplitterComponent
144	*/
145	private initialSiblingSize!: number;
146
147	/**
148	* @hidden @internal
149	* The main pane in each pair of panes divided by a gripper.
150	*/
151	private pane!: IgxSplitterPaneComponent;
152
153	/**
154	* The sibling pane in each pair of panes divided by a splitter bar.
155	*/
156	private sibling!: IgxSplitterPaneComponent;
157
158	constructor(@Inject(DOCUMENT) public document, private elementRef: ElementRef) { }	22✔
159	/**
160	* Gets/Sets the splitter orientation.
161	*
162	* @example
163	* ```html
164	* <igx-splitter [type]="type">...</igx-splitter>
165	* ```
166	*/
167	@Input()
168	public get type() {
169	return this._type;	646✔
170	}
171	public set type(value) {
172	this._type = value;	28✔
173	this.resetPaneSizes();	28✔
174	this.panes?.notifyOnChanges();	28✔
175	}
176
177	/**
178	* Sets the visibility of the handle and expanders in the splitter bar.
179	* False by default
180	*
181	* @example
182	* ```html
183	* <igx-splitter [nonCollapsible]='true'>
184	* </igx-splitter>
185	* ```
186	*/
187	@Input({ transform: booleanAttribute })
188	public nonCollapsible = false; // Input to toggle showing/hiding expanders	22✔
189
190	/**
191	* @hidden @internal
192	* Gets the `flex-direction` property of the current `SplitterComponent`.
193	*/
194	@HostBinding('style.flex-direction')
195	public get direction(): string {
196	return this.type === SplitterType.Horizontal ? 'row' : 'column';	160✔
197	}
198
199	/** @hidden @internal */
200	public ngAfterContentInit(): void {
201	this.initPanes();	22✔
202	this.panes.changes.subscribe(() => {	22✔
203	this.initPanes();	9✔
204	});
205	}
206
207	/**
208	* @hidden @internal
209	* This method performs initialization logic when the user starts dragging the splitter bar between each pair of panes.
210	* @param pane - the main pane associated with the currently dragged bar.
211	*/
212	public onMoveStart(pane: IgxSplitterPaneComponent) {
213	const panes = this.panes.toArray();	18✔
214	this.pane = pane;	18✔
215	this.sibling = panes[panes.indexOf(this.pane) + 1];	18✔
216
217	const paneRect = this.pane.element.getBoundingClientRect();	18✔
218	this.initialPaneSize = this.type === SplitterType.Horizontal ? paneRect.width : paneRect.height;	18✔
219
220	const siblingRect = this.sibling.element.getBoundingClientRect();	18✔
221	this.initialSiblingSize = this.type === SplitterType.Horizontal ? siblingRect.width : siblingRect.height;	18✔
222	const args: ISplitterBarResizeEventArgs = { pane: this.pane, sibling: this.sibling };	18✔
223	this.resizeStart.emit(args);	18✔
224	}
225
226	/**
227	* @hidden @internal
228	* This method performs calculations concerning the sizes of each pair of panes when the bar between them is dragged.
229	* @param delta - The difference along the X (or Y) axis between the initial and the current point when dragging the bar.
230	*/
231	public onMoving(delta: number) {
232	const [ paneSize, siblingSize ] = this.calcNewSizes(delta);	18✔
233
234	this.pane.dragSize = paneSize + 'px';	18✔
235	this.sibling.dragSize = siblingSize + 'px';	18✔
236
237	const args: ISplitterBarResizeEventArgs = { pane: this.pane, sibling: this.sibling };	18✔
238	this.resizing.emit(args);	18✔
239	}
240
241	public onMoveEnd(delta: number) {
242	let [ paneSize, siblingSize ] = this.calcNewSizes(delta);	6✔
243
244	if (paneSize + siblingSize > this.getTotalSize() && delta < 0) {	6!
NEW 245	paneSize = this.getTotalSize();	×
NEW 246	siblingSize = 0;	×
247	} else if(paneSize + siblingSize > this.getTotalSize() && delta > 0) {	6!
NEW 248	paneSize = 0;	×
NEW 249	siblingSize = this.getTotalSize();	×
250	}
251
252	if (this.pane.isPercentageSize) {	6✔
253	// handle % resizes
254	const totalSize = this.getTotalSize();	3✔
255	const percentPaneSize = (paneSize / totalSize) * 100;	3✔
256	this.pane.size = percentPaneSize + '%';	3✔
257	} else {
258	// px resize
259	this.pane.size = paneSize + 'px';	3✔
260	}
261
262	if (this.sibling.isPercentageSize) {	6✔
263	// handle % resizes
264	const totalSize = this.getTotalSize();	4✔
265	const percentSiblingPaneSize = (siblingSize / totalSize) * 100;	4✔
266	this.sibling.size = percentSiblingPaneSize + '%';	4✔
267	} else {
268	// px resize
269	this.sibling.size = siblingSize + 'px';	2✔
270	}
271	this.pane.dragSize = null;	6✔
272	this.sibling.dragSize = null;	6✔
273
274	const args: ISplitterBarResizeEventArgs = { pane: this.pane, sibling: this.sibling };	6✔
275	this.resizeEnd.emit(args);	6✔
276	}
277
278	/** @hidden @internal */
279	public getPaneSiblingsByOrder(order: number, barIndex: number): Array<IgxSplitterPaneComponent> {
280	const panes = this.panes.toArray();	198✔
281	const prevPane = panes[order - barIndex - 1];	198✔
282	const nextPane = panes[order - barIndex];	198✔
283	const siblings = [prevPane, nextPane];	198✔
284	return siblings;	198✔
285	}
286
287	private getTotalSize() {
288	const computed = this.document.defaultView.getComputedStyle(this.elementRef.nativeElement);	23✔
289	const totalSize = this.type === SplitterType.Horizontal ? computed.getPropertyValue('width') : computed.getPropertyValue('height');	23✔
290	return parseFloat(totalSize);	23✔
291	}
292
293
294	/**
295	* @hidden @internal
296	* This method inits panes with properties.
297	*/
298	private initPanes() {
299	this.panes.forEach(pane => {	31✔
300	pane.owner = this;	69✔
301	if (this.type === SplitterType.Horizontal) {	69✔
302	pane.minWidth = pane.minSize ?? '0';	50✔
303	pane.maxWidth = pane.maxSize ?? '100%';	50✔
304	} else {
305	pane.minHeight = pane.minSize ?? '0';	19✔
306	pane.maxHeight = pane.maxSize ?? '100%';	19✔
307	}
308	});
309	this.assignFlexOrder();	31✔
310	if (this.panes.filter(x => x.collapsed).length > 0) {	69✔
311	// if any panes are collapsed, reset sizes.
312	this.resetPaneSizes();	2✔
313	}
314	}
315
316	/**
317	* @hidden @internal
318	* This method reset pane sizes.
319	*/
320	private resetPaneSizes() {
321	if (this.panes) {	30✔
322	// if type is changed runtime, should reset sizes.
323	this.panes.forEach(x => {	9✔
324	x.size = 'auto'	21✔
325	x.minWidth = '0';	21✔
326	x.maxWidth = '100%';	21✔
327	x.minHeight = '0';	21✔
328	x.maxHeight = '100%';	21✔
329	});
330	}
331	}
332
333	/**
334	* @hidden @internal
335	* This method assigns the order of each pane.
336	*/
337	private assignFlexOrder() {
338	let k = 0;	31✔
339	this.panes.forEach((pane: IgxSplitterPaneComponent) => {	31✔
340	pane.order = k;	69✔
341	k += 2;	69✔
342	});
343	}
344
345	/**
346	* @hidden @internal
347	* Calculates new sizes for the panes based on move delta and initial sizes
348	*/
349	private calcNewSizes(delta: number): [number, number] {
350	const min = parseInt(this.pane.minSize, 10) \|\| 0;	24✔
351	const minSibling = parseInt(this.sibling.minSize, 10) \|\| 0;	24✔
352	const max = parseInt(this.pane.maxSize, 10) \|\| this.initialPaneSize + this.initialSiblingSize - minSibling;	24✔
353	const maxSibling = parseInt(this.sibling.maxSize, 10) \|\| this.initialPaneSize + this.initialSiblingSize - min;	24✔
354
355	if (delta < 0) {	24✔
356	const maxPossibleDelta = Math.min(	16✔
357	max - this.initialPaneSize,
358	this.initialSiblingSize - minSibling,
359	)
360	delta = Math.min(maxPossibleDelta, Math.abs(delta)) * -1;	16✔
361	} else {
362	const maxPossibleDelta = Math.min(	8✔
363	this.initialPaneSize - min,
364	maxSibling - this.initialSiblingSize
365	)
366	delta = Math.min(maxPossibleDelta, Math.abs(delta));	8✔
367	}
368	return [this.initialPaneSize - delta, this.initialSiblingSize + delta];	24✔
369	}
370	}
371
372	/**
373	* @hidden @internal
374	* Represents the draggable bar that visually separates panes and allows for changing their sizes.
375	*/
376	@Component({
377	selector: 'igx-splitter-bar',
378	templateUrl: './splitter-bar.component.html',
379	imports: [IgxDragDirective, IgxDragIgnoreDirective]
380	})
381	export class IgxSplitBarComponent {	2✔
382	/**
383	* Set css class to the host element.
384	*/
385	@HostBinding('class.igx-splitter-bar-host')
386	public cssClass = 'igx-splitter-bar-host';	28✔
387
388	/**
389	* Sets the visibility of the handle and expanders in the splitter bar.
390	*/
391	@Input({ transform: booleanAttribute })
392	public nonCollapsible;
393
394	/**
395	* Gets/Sets the orientation.
396	*/
397	@Input()
398	public type: SplitterType = SplitterType.Horizontal;	28✔
399
400	/**
401	* Sets/gets the element order.
402	*/
403	@HostBinding('style.order')
404	@Input()
405	public order!: number;
406
407	/**
408	* @hidden
409	* @internal
410	*/
411	@HostBinding('attr.tabindex')
412	public get tabindex() {
413	return this.resizeDisallowed ? null : 0;	198✔
414	}
415
416	/**
417	* @hidden
418	* @internal
419	*/
420	@HostBinding('attr.aria-orientation')
421	public get orientation() {
422	return this.type === SplitterType.Horizontal ? 'horizontal' : 'vertical';	198✔
423	}
424
425	/**
426	* @hidden
427	* @internal
428	*/
429	public get cursor() {
430	if (this.resizeDisallowed) {	200✔
431	return '';	39✔
432	}
433	return this.type === SplitterType.Horizontal ? 'col-resize' : 'row-resize';	161✔
434	}
435
436	/**
437	* Sets/gets the `SplitPaneComponent` associated with the current `SplitBarComponent`.
438	*
439	* @memberof SplitBarComponent
440	*/
441	@Input()
442	public pane!: IgxSplitterPaneComponent;
443
444	/**
445	* Sets/Gets the `SplitPaneComponent` sibling components associated with the current `SplitBarComponent`.
446	*/
447	@Input()
448	public siblings!: Array<IgxSplitterPaneComponent>;
449
450	/**
451	* An event that is emitted whenever we start dragging the current `SplitBarComponent`.
452	*/
453	@Output()
454	public moveStart = new EventEmitter<IgxSplitterPaneComponent>();	28✔
455
456	/**
457	* An event that is emitted while we are dragging the current `SplitBarComponent`.
458	*/
459	@Output()
460	public moving = new EventEmitter<number>();	28✔
461
462	@Output()
463	public movingEnd = new EventEmitter<number>();	28✔
464
465	/**
466	* A temporary holder for the pointer coordinates.
467	*/
468	private startPoint!: number;
469
470	private interactionKeys = new Set('right down left up arrowright arrowdown arrowleft arrowup'.split(' '));	28✔
471
472	/**
473	* @hidden @internal
474	*/
475	public get prevButtonHidden() {
476	return this.siblings[0].collapsed && !this.siblings[1].collapsed;	198✔
477	}
478
479	/**
480	* @hidden @internal
481	*/
482	@HostListener('keydown', ['$event'])
483	public keyEvent(event: KeyboardEvent) {
484	const key = event.key.toLowerCase();	17✔
485	const ctrl = event.ctrlKey;	17✔
486	event.stopPropagation();	17✔
487	if (this.interactionKeys.has(key)) {	17✔
488	event.preventDefault();	17✔
489	}
490	switch (key) {	17!
491	case 'arrowup':
492	case 'up':
493	if (this.type === SplitterType.Vertical) {	3✔
494	if (ctrl) {	3✔
495	this.onCollapsing(false);	2✔
496	break;	2✔
497	}
498	if (!this.resizeDisallowed) {	1✔
499	event.preventDefault();	1✔
500	this.moveStart.emit(this.pane);	1✔
501	this.moving.emit(10);	1✔
502	}
503	}
504	break;	1✔
505	case 'arrowdown':
506	case 'down':
507	if (this.type === SplitterType.Vertical) {	5✔
508	if (ctrl) {	5✔
509	this.onCollapsing(true);	2✔
510	break;	2✔
511	}
512	if (!this.resizeDisallowed) {	3✔
513	event.preventDefault();	2✔
514	this.moveStart.emit(this.pane);	2✔
515	this.moving.emit(-10);	2✔
516	}
517	}
518	break;	3✔
519	case 'arrowleft':
520	case 'left':
521	if (this.type === SplitterType.Horizontal) {	3✔
522	if (ctrl) {	3✔
523	this.onCollapsing(false);	2✔
524	break;	2✔
525	}
526	if (!this.resizeDisallowed) {	1✔
527	event.preventDefault();	1✔
528	this.moveStart.emit(this.pane);	1✔
529	this.moving.emit(10);	1✔
530	}
531	}
532	break;	1✔
533	case 'arrowright':
534	case 'right':
535	if (this.type === SplitterType.Horizontal) {	6✔
536	if (ctrl) {	6✔
537	this.onCollapsing(true);	2✔
538	break;	2✔
539	}
540	if (!this.resizeDisallowed) {	4✔
541	event.preventDefault();	2✔
542	this.moveStart.emit(this.pane);	2✔
543	this.moving.emit(-10);	2✔
544	}
545	}
546	break;	4✔
547	default:
548	break;	×
549	}
550	}
551
552	/**
553	* @hidden @internal
554	*/
555	public get dragDir() {
556	return this.type === SplitterType.Horizontal ? DragDirection.VERTICAL : DragDirection.HORIZONTAL;	198✔
557	}
558
559	/**
560	* @hidden @internal
561	*/
562	public get nextButtonHidden() {
563	return this.siblings[1].collapsed && !this.siblings[0].collapsed;	198✔
564	}
565
566	/**
567	* @hidden @internal
568	*/
569	public onDragStart(event: IDragStartEventArgs) {
570	if (this.resizeDisallowed) {	1✔
571	event.cancel = true;	1✔
572	return;	1✔
573	}
574	this.startPoint = this.type === SplitterType.Horizontal ? event.startX : event.startY;	×
575	this.moveStart.emit(this.pane);	×
576	}
577
578	/**
579	* @hidden @internal
580	*/
581	public onDragMove(event: IDragMoveEventArgs) {
582	const isHorizontal = this.type === SplitterType.Horizontal;	×
583	const curr = isHorizontal ? event.pageX : event.pageY;	×
584	const delta = this.startPoint - curr;	×
585	if (delta !== 0) {	×
586	this.moving.emit(delta);	×
587	event.cancel = true;	×
588	event.owner.element.nativeElement.style.transform = '';	×
589	}
590	}
591
592	public onDragEnd(event: any) {
593	const isHorizontal = this.type === SplitterType.Horizontal;	×
594	const curr = isHorizontal ? event.pageX : event.pageY;	×
595	const delta = this.startPoint - curr;	×
596	if (delta !== 0) {	×
597	this.movingEnd.emit(delta);	×
598	}
599	}
600
601	protected get resizeDisallowed() {
602	const relatedTabs = this.siblings;	408✔
603	return !!relatedTabs.find(x => x.resizable === false \|\| x.collapsed === true);	768✔
604	}
605
606	/**
607	* @hidden @internal
608	*/
609	public onCollapsing(next: boolean) {
610	const prevSibling = this.siblings[0];	15✔
611	const nextSibling = this.siblings[1];	15✔
612	let target;
613	if (next) {	15✔
614	// if next is clicked when prev pane is hidden, show prev pane, else hide next pane.
615	target = prevSibling.collapsed ? prevSibling : nextSibling;	7✔
616	} else {
617	// if prev is clicked when next pane is hidden, show next pane, else hide prev pane.
618	target = nextSibling.collapsed ? nextSibling : prevSibling;	8✔
619	}
620	target.toggle();	15✔
621	}
622	}

IgniteUI / igniteui-angular / 14441306397

Source File Press 'n' to go to next uncovered line, 'b' for previous

Source File
Press 'n' to go to next uncovered line, 'b' for previous