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import MessageListener from '../../MessageListener';
import { LinkHint, InputHint } from '../../presenters/Hint';
import * as messages from '../../../shared/messages';
import { Key } from '../../../shared/utils/keys';
import TabsClient, { TabsClientImpl } from '../../client/TabsClient';
import FollowMasterClient, { FollowMasterClientImpl }
from '../../client/FollowMasterClient';
import FollowPresenter, { FollowPresenterImpl }
from '../../presenters/FollowPresenter';
let tabsClient: TabsClient = new TabsClientImpl();
let followMasterClient: FollowMasterClient =
new FollowMasterClientImpl(window.top);
let followPresenter: FollowPresenter =
new FollowPresenterImpl();
interface Size {
width: number;
height: number;
}
interface Point {
x: number;
y: number;
}
export default class Follow {
private enabled: boolean;
constructor() {
this.enabled = false;
new MessageListener().onWebMessage(this.onMessage.bind(this));
}
key(key: Key): boolean {
if (!this.enabled) {
return false;
}
followMasterClient.sendKey(key);
return true;
}
countHints(viewSize: Size, framePosition: Point) {
let count = followPresenter.getTargetCount(viewSize, framePosition);
followMasterClient.responseHintCount(count);
}
createHints(viewSize: Size, framePosition: Point, tags: string[]) {
this.enabled = true;
followPresenter.createHints(viewSize, framePosition, tags);
}
showHints(prefix: string) {
followPresenter.filterHints(prefix);
}
removeHints() {
followPresenter.clearHints();
this.enabled = false;
}
async activateHints(
tag: string, newTab: boolean, background: boolean,
): Promise<void> {
let hint = followPresenter.getHint(tag);
if (!hint) {
return;
}
if (hint instanceof LinkHint) {
let url = hint.getLink();
// ignore taget='_blank'
if (!newTab && hint.getLinkTarget() !== '_blank') {
hint.click();
return;
}
// eslint-disable-next-line no-script-url
if (!url || url === '#' || url.toLowerCase().startsWith('javascript:')) {
return;
}
await tabsClient.openUrl(url, newTab, background);
} else if (hint instanceof InputHint) {
hint.activate();
}
}
onMessage(message: messages.Message, _sender: Window) {
switch (message.type) {
case messages.FOLLOW_REQUEST_COUNT_TARGETS:
return this.countHints(message.viewSize, message.framePosition);
case messages.FOLLOW_CREATE_HINTS:
return this.createHints(
message.viewSize, message.framePosition, message.tags);
case messages.FOLLOW_SHOW_HINTS:
return this.showHints(message.prefix);
case messages.FOLLOW_ACTIVATE:
return this.activateHints(
message.tag, message.newTab, message.background);
case messages.FOLLOW_REMOVE_HINTS:
return this.removeHints();
}
}
}
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