130 lines
4.8 KiB
TypeScript

// (C) Copyright 2015 Martin Dougiamas
//
// 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 { Component, OnInit, ElementRef } from '@angular/core';
import { FormBuilder, FormControl } from '@angular/forms';
import { CoreDomUtilsProvider } from '@providers/utils/dom';
import { CoreTextUtilsProvider } from '@providers/utils/text';
import { AddonModAssignProvider } from '../../../providers/assign';
import { AddonModAssignOfflineProvider } from '../../../providers/assign-offline';
import { AddonModAssignSubmissionPluginComponent } from '../../../classes/submission-plugin-component';
/**
* Component to render an onlinetext submission plugin.
*/
@Component({
selector: 'addon-mod-assign-submission-online-text',
templateUrl: 'onlinetext.html'
})
export class AddonModAssignSubmissionOnlineTextComponent extends AddonModAssignSubmissionPluginComponent implements OnInit {
control: FormControl;
words: number;
component = AddonModAssignProvider.COMPONENT;
text: string;
loaded: boolean;
protected wordCountTimeout: any;
protected element: HTMLElement;
constructor(protected fb: FormBuilder, protected domUtils: CoreDomUtilsProvider, protected textUtils: CoreTextUtilsProvider,
protected assignProvider: AddonModAssignProvider, protected assignOfflineProvider: AddonModAssignOfflineProvider,
element: ElementRef) {
super();
this.element = element.nativeElement;
}
/**
* Component being initialized.
*/
ngOnInit(): void {
let promise,
rteEnabled;
// Check if rich text editor is enabled.
if (this.edit) {
promise = this.domUtils.isRichTextEditorEnabled();
} else {
// We aren't editing, so no rich text editor.
promise = Promise.resolve(false);
}
promise.then((enabled) => {
rteEnabled = enabled;
// Get the text. Check if we have anything offline.
return this.assignOfflineProvider.getSubmission(this.assign.id).catch(() => {
// No offline data found.
}).then((offlineData) => {
if (offlineData && offlineData.pluginData && offlineData.pluginData.onlinetext_editor) {
return offlineData.pluginData.onlinetext_editor.text;
}
// No offline data found, return online text.
return this.assignProvider.getSubmissionPluginText(this.plugin, this.edit && !rteEnabled);
});
}).then((text) => {
// We receive them as strings, convert to int.
this.configs.wordlimit = parseInt(this.configs.wordlimit, 10);
this.configs.wordlimitenabled = parseInt(this.configs.wordlimitenabled, 10);
// Set the text.
this.text = text;
if (!this.edit) {
// Not editing, see full text when clicked.
this.element.addEventListener('click', (e) => {
e.preventDefault();
e.stopPropagation();
if (text) {
// Open a new state with the interpolated contents.
this.textUtils.expandText(this.plugin.name, text, this.component, this.assign.cmid);
}
});
} else {
// Create and add the control.
this.control = this.fb.control(text);
}
// Calculate initial words.
if (this.configs.wordlimitenabled) {
this.words = this.textUtils.countWords(text);
}
}).finally(() => {
this.loaded = true;
});
}
/**
* Text changed.
*
* @param {string} text The new text.
*/
onChange(text: string): void {
// Count words if needed.
if (this.configs.wordlimitenabled) {
// Cancel previous wait.
clearTimeout(this.wordCountTimeout);
// Wait before calculating, if the user keeps inputing we won't calculate.
// This is to prevent slowing down devices, this calculation can be slow if the text is long.
this.wordCountTimeout = setTimeout(() => {
this.words = this.textUtils.countWords(text);
}, 1500);
}
}
}