88 lines
3.7 KiB
TypeScript

// (C) Copyright 2015 Moodle Pty Ltd.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
import { Injector } from '@angular/core';
import { CoreLogger } from '@providers/logger';
import { CoreSitePluginsBaseHandler } from './base-handler';
import { CoreBlockDelegate, CoreBlockHandler, CoreBlockHandlerData } from '@core/block/providers/delegate';
import { CoreBlockPreRenderedComponent } from '@core/block/components/pre-rendered-block/pre-rendered-block';
import { CoreSitePluginsBlockComponent } from '@core/siteplugins/components/block/block';
import { CoreSitePluginsOnlyTitleBlockComponent } from '@core/siteplugins/components/only-title-block/only-title-block';
/**
* Handler to support a block using a site plugin.
*/
export class CoreSitePluginsBlockHandler extends CoreSitePluginsBaseHandler implements CoreBlockHandler {
protected logger;
constructor(name: string, public title: string, public blockName: string, protected handlerSchema: any,
protected initResult: any, protected blockDelegate: CoreBlockDelegate) {
super(name);
this.logger = CoreLogger.instance.getInstance('CoreSitePluginsBlockHandler');
}
/**
* Gets display data for this block. The class and title can be provided either by data from
* the handler schema (mobile.php) or using default values.
*
* @param injector Injector
* @param block Block data
* @param contextLevel Context level (not used)
* @param instanceId Instance id (not used)
* @return Data or promise resolved with the data
*/
async getDisplayData(injector: Injector, block: any, contextLevel: string, instanceId: number): Promise<CoreBlockHandlerData> {
let className;
let component;
if (this.handlerSchema.displaydata && this.handlerSchema.displaydata.class) {
className = this.handlerSchema.displaydata.class;
} else {
className = 'block_' + block.name;
}
if (this.handlerSchema.displaydata && this.handlerSchema.displaydata.type == 'title') {
component = CoreSitePluginsOnlyTitleBlockComponent;
} else if (this.handlerSchema.displaydata && this.handlerSchema.displaydata.type == 'prerendered') {
component = CoreBlockPreRenderedComponent;
} else if (this.handlerSchema.fallback && !this.handlerSchema.method) {
// Try to use the fallback block.
const originalName = block.name;
block.name = this.handlerSchema.fallback;
try {
const displayData = await this.blockDelegate.getBlockDisplayData(injector, block, contextLevel, instanceId);
this.logger.debug(`Using fallback "${this.handlerSchema.fallback}" for block "${originalName}"`);
component = displayData.component;
} catch (error) {
this.logger.error(`Error using fallback "${this.handlerSchema.fallback}" for block "${originalName}", ` +
'maybe it doesn\'t exist or isn\'t enabled.', error);
throw error;
}
} else {
component = CoreSitePluginsBlockComponent;
}
return {
title: this.title,
class: className,
component: component
};
}
}