ag-grid/src/ts/components/componentUtil.ts

import {GridOptions} from '../entities/gridOptions';
import {GridApi} from '../gridApi';
import {ComponentStateChangedEvent, Events} from '../events';
import {PropertyKeys} from '../propertyKeys';
import {Utils as _} from '../utils';
import {ColumnApi} from '../columnController/columnApi';
import {GridOptionsWrapper} from "../gridOptionsWrapper";

export class ComponentUtil {
    // all the events are populated in here AFTER this class (at the bottom of the file).
    public static EVENTS: string[] = [];

    // function below fills this with onXXX methods, based on the above events
    private static EVENT_CALLBACKS: string[];

    // function below fills this with methods names, with no "on" prefix
    private static EVENT_CALLBACKS_NO_PREFIX: string[];

    public static STRING_PROPERTIES = PropertyKeys.STRING_PROPERTIES;

    public static OBJECT_PROPERTIES = PropertyKeys.OBJECT_PROPERTIES;

    public static ARRAY_PROPERTIES = PropertyKeys.ARRAY_PROPERTIES;

    public static NUMBER_PROPERTIES = PropertyKeys.NUMBER_PROPERTIES;

    public static BOOLEAN_PROPERTIES = PropertyKeys.BOOLEAN_PROPERTIES;

    public static FUNCTION_PROPERTIES = PropertyKeys.FUNCTION_PROPERTIES;

    public static ALL_PROPERTIES = PropertyKeys.ALL_PROPERTIES;

    public static getEventCallbacks(): string[] {
        if (!ComponentUtil.EVENT_CALLBACKS) {
            ComponentUtil.EVENT_CALLBACKS = [];
            ComponentUtil.EVENT_CALLBACKS_NO_PREFIX = [];

            ComponentUtil.EVENTS.forEach((eventName: string) => {
                ComponentUtil.EVENT_CALLBACKS.push(ComponentUtil.getCallbackForEvent(eventName));
                ComponentUtil.EVENT_CALLBACKS_NO_PREFIX.push(eventName);
            });
        }
        return ComponentUtil.EVENT_CALLBACKS;
    }

    public static copyAttributesToGridOptions(gridOptions: GridOptions, component: any, skipEventDeprecationCheck: boolean = false): GridOptions {
        checkForDeprecated(component);
        // create empty grid options if none were passed
        if (typeof gridOptions !== 'object') {
            gridOptions = <GridOptions>{};
        }
        // to allow array style lookup in TypeScript, take type away from 'this' and 'gridOptions'
        let pGridOptions = <any>gridOptions;
        // add in all the simple properties
        ComponentUtil.ARRAY_PROPERTIES
            .concat(ComponentUtil.STRING_PROPERTIES)
            .concat(ComponentUtil.OBJECT_PROPERTIES)
            .concat(ComponentUtil.FUNCTION_PROPERTIES)
            .forEach(key => {
                if (typeof component[key] !== 'undefined') {
                    pGridOptions[key] = component[key];
                }
            });
        ComponentUtil.BOOLEAN_PROPERTIES.forEach(key => {
            if (typeof component[key] !== 'undefined') {
                pGridOptions[key] = ComponentUtil.toBoolean(component[key]);
            }
        });
        ComponentUtil.NUMBER_PROPERTIES.forEach(key => {
            if (typeof component[key] !== 'undefined') {
                pGridOptions[key] = ComponentUtil.toNumber(component[key]);
            }
        });
        ComponentUtil.getEventCallbacks().forEach(funcName => {
            if (typeof component[funcName] !== 'undefined') {
                pGridOptions[funcName] = component[funcName];
            }
        });

        // purely for event deprecation checks (for frameworks - wouldn't apply for non-fw versions)
        if (!skipEventDeprecationCheck) {
            ComponentUtil.EVENT_CALLBACKS_NO_PREFIX.forEach(funcName => {
                // react uses onXXX...not sure why this is diff to the other frameworks
                const onMethodName = ComponentUtil.getCallbackForEvent(funcName);

                if (typeof component[funcName] !== 'undefined' ||
                    typeof component[onMethodName] !== 'undefined') {
                    GridOptionsWrapper.checkEventDeprecation(funcName);
                }
            });
        }

        return gridOptions;
    }

    public static getCallbackForEvent(eventName: string): string {
        if (!eventName || eventName.length < 2) {
            return eventName;
        } else {
            return 'on' + eventName[0].toUpperCase() + eventName.substr(1);
        }
    }

    public static processOnChange(changes: any, gridOptions: GridOptions, api: GridApi, columnApi: ColumnApi): void {
        if (!changes) {
            return;
        }

        checkForDeprecated(changes);

        // to allow array style lookup in TypeScript, take type away from 'this' and 'gridOptions'
        let pGridOptions = <any>gridOptions;

        // check if any change for the simple types, and if so, then just copy in the new value
        ComponentUtil.ARRAY_PROPERTIES
            .concat(ComponentUtil.OBJECT_PROPERTIES)
            .concat(ComponentUtil.STRING_PROPERTIES)
            .forEach(key => {
                if (changes[key]) {
                    pGridOptions[key] = changes[key].currentValue;
                }
            });
        ComponentUtil.BOOLEAN_PROPERTIES.forEach(key => {
            if (changes[key]) {
                pGridOptions[key] = ComponentUtil.toBoolean(changes[key].currentValue);
            }
        });
        ComponentUtil.NUMBER_PROPERTIES.forEach(key => {
            if (changes[key]) {
                pGridOptions[key] = ComponentUtil.toNumber(changes[key].currentValue);
            }
        });
        ComponentUtil.getEventCallbacks().forEach(funcName => {
            if (changes[funcName]) {
                pGridOptions[funcName] = changes[funcName].currentValue;
            }
        });

        if (changes.showToolPanel) {
            api.showToolPanel(ComponentUtil.toBoolean(changes.showToolPanel.currentValue));
        }

        if (changes.quickFilterText) {
            api.setQuickFilter(changes.quickFilterText.currentValue);
        }

        if (changes.rowData) {
            api.setRowData(changes.rowData.currentValue);
        }

        if (changes.pinnedTopRowData) {
            api.setPinnedTopRowData(changes.pinnedTopRowData.currentValue);
        }

        if (changes.pinnedBottomRowData) {
            api.setPinnedBottomRowData(changes.pinnedBottomRowData.currentValue);
        }

        if (changes.columnDefs) {
            api.setColumnDefs(changes.columnDefs.currentValue, "gridOptionsChanged");
        }

        if (changes.datasource) {
            api.setDatasource(changes.datasource.currentValue);
        }

        if (changes.headerHeight) {
            api.setHeaderHeight(ComponentUtil.toNumber(changes.headerHeight.currentValue));
        }

        if (changes.paginationPageSize) {
            api.paginationSetPageSize(ComponentUtil.toNumber(changes.paginationPageSize.currentValue));
        }

        if (changes.pivotMode) {
            columnApi.setPivotMode(ComponentUtil.toBoolean(changes.pivotMode.currentValue));
        }

        if (changes.groupRemoveSingleChildren) {
            api.setGroupRemoveSingleChildren(ComponentUtil.toBoolean(changes.groupRemoveSingleChildren.currentValue));
        }

        if (changes.suppressRowDrag) {
            api.setSuppressRowDrag(ComponentUtil.toBoolean(changes.suppressRowDrag.currentValue));
        }

        if (changes.gridAutoHeight) {
            api.setGridAutoHeight(ComponentUtil.toBoolean(changes.gridAutoHeight.currentValue));
        }

        if (changes.suppressClipboardPaste) {
            api.setSuppressClipboardPaste(ComponentUtil.toBoolean(changes.suppressClipboardPaste.currentValue));
        }

        // copy changes into an event for dispatch
        let event: ComponentStateChangedEvent = {
            type: Events.EVENT_COMPONENT_STATE_CHANGED,
            api: gridOptions.api,
            columnApi: gridOptions.columnApi
        };
        _.iterateObject(changes, (key: string, value: any) => {
            (<any>event)[key] = value;
        });

        api.dispatchEvent(event);
    }

    public static toBoolean(value: any): boolean {
        if (typeof value === 'boolean') {
            return value;
        } else if (typeof value === 'string') {
            // for boolean, compare to empty String to allow attributes appearing with
            // not value to be treated as 'true'
            return value.toUpperCase() === 'TRUE' || value == '';
        } else {
            return false;
        }
    }

    public static toNumber(value: any): number {
        if (typeof value === 'number') {
            return value;
        } else if (typeof value === 'string') {
            return Number(value);
        } else {
            return undefined;
        }
    }
}

_.iterateObject<any>(Events, function (key, value) {
    ComponentUtil.EVENTS.push(value);
});

function checkForDeprecated(changes: any): void {
    if (changes.rowDeselected || changes.onRowDeselected) {
        console.warn('ag-grid: as of v3.4 rowDeselected no longer exists. Please check the docs.');
    }
}