696 lines
22 KiB
Vue
696 lines
22 KiB
Vue
<template>
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<!-- hiding elements instead of using 'v-if' is used here as an optimization -->
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<div class="image-preview-wrapper" :class="{interactive: sticky, visible: visible}">
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<div class="image-preview-toolbar" v-show="sticky || debug">
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<a @click="toggleDevMode()" :class="{toggled: debug}" title="Debug Mode"><i class="fa fa-terminal"></i></a>
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<a @click="toggleJsMode()" :class="{toggled: runJs}" title="Expand Images"><i class="fa fa-magic"></i></a>
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<a @click="reloadUrl()" title="Reload Image"><i class="fa fa-redo-alt"></i></a>
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<a @click="reset()" title="Reset Image Viewer"><i class="fa fa-recycle"></i></a>
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<a @click="toggleStickyMode()" :class="{toggled: sticky}" title="Toggle Stickyness"><i class="fa fa-thumbtack"></i></a>
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</div>
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<!-- note: preload requires a webpack config CopyPlugin configuration -->
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<webview
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preload="./preview/assets/browser.pre.js"
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src="about:blank"
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nodeintegration
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webpreferences="allowRunningInsecureContent, autoplayPolicy=no-user-gesture-required"
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id="image-preview-ext"
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ref="imagePreviewExt"
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class="image-preview-external"
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:style="externalPreviewStyle">
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</webview>
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<div
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class="image-preview-local"
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:style="localPreviewStyle"
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>
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</div>
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</div>
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</template>
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<script lang="ts">
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import * as _ from 'lodash';
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import {Component, Hook} from '@f-list/vue-ts';
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import Vue from 'vue';
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import core from '../core';
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import { EventBus, EventBusEvent } from './event-bus';
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import {domain} from '../../bbcode/core';
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import {ImagePreviewMutator} from './image-preview-mutator';
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import { ExternalImagePreviewHelper, LocalImagePreviewHelper } from './helper';
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import {Point, WebviewTag, remote} from 'electron';
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import Timer = NodeJS.Timer;
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import IpcMessageEvent = Electron.IpcMessageEvent;
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import { ElectronBlocker } from '@cliqz/adblocker-electron';
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import fetch from 'node-fetch';
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// import { promises as fs } from 'fs';
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const screen = remote.screen;
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interface DidFailLoadEvent extends Event {
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errorCode: number;
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errorDescription: string;
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}
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interface DidNavigateEvent extends Event {
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httpResponseCode: number;
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httpStatusText: string;
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}
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@Component
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export default class ImagePreview extends Vue {
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private readonly MinTimePreviewVisible = 100;
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visible = false;
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externalPreviewHelper = new ExternalImagePreviewHelper(this);
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localPreviewHelper = new LocalImagePreviewHelper(this);
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url: string | null = null;
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domain: string | undefined;
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sticky = false;
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runJs = true;
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debug = false;
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jsMutator = new ImagePreviewMutator(this.debug);
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externalPreviewStyle: Record<string, any> = {};
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localPreviewStyle: Record<string, any> = {};
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private interval: Timer | null = null;
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private exitInterval: Timer | null = null;
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private exitUrl: string | null = null;
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private initialCursorPosition: Point | null = null;
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private shouldDismiss = false;
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private visibleSince = 0;
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@Hook('mounted')
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onMounted(): void {
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console.warn('Mounted ImagePreview');
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EventBus.$on(
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'imagepreview-dismiss',
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(eventData: EventBusEvent) => {
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// console.log('Event dismiss', eventData.url);
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this.dismiss(eventData.url as string, eventData.force as boolean);
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}
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);
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EventBus.$on(
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'imagepreview-show',
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(eventData: EventBusEvent) => {
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// console.log('Event show', eventData.url);
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if (!core.state.settings.risingLinkPreview) {
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return;
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}
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this.show(eventData.url as string);
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}
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);
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EventBus.$on(
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'imagepreview-toggle-stickyness',
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(eventData: EventBusEvent) => {
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if (!core.state.settings.risingLinkPreview) {
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return;
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}
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const eventUrl = this.jsMutator.mutateUrl(eventData.url as string);
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if ((this.url === eventUrl) && (this.visible))
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this.sticky = !this.sticky;
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}
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);
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const webview = this.getWebview();
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webview.addEventListener(
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'update-target-url', // 'did-navigate', // 'dom-ready',
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(event: EventBusEvent) => {
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const url = webview.getURL();
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const js = this.jsMutator.getMutatorJsForSite(url, 'update-target-url');
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// tslint:disable-next-line
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this.executeJavaScript(js, 'update-target-url', event);
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}
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);
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webview.addEventListener(
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'dom-ready', // 'did-navigate', // 'dom-ready',
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(event: EventBusEvent) => {
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const url = webview.getURL();
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const js = this.jsMutator.getMutatorJsForSite(url, 'dom-ready');
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// tslint:disable-next-line
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this.executeJavaScript(js, 'dom-ready', event);
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}
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);
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webview.addEventListener(
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'did-fail-load',
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(event: Event) => {
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const e = event as DidFailLoadEvent;
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if (e.errorCode < 0) {
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console.error('DID FAIL LOAD', event);
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const url = this.getUrl() || '';
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const qjs = this.jsMutator.getMutatorJsForSite(url, 'update-target-url')
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|| this.jsMutator.getMutatorJsForSite(url, 'dom-ready');
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// tslint:disable-next-line
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this.executeJavaScript(qjs, 'did-fail-load-but-still-loading', event);
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return;
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}
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// if (e.errorCode < 100) {
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// const url = webview.getURL();
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// const js = this.jsMutator.getMutatorJsForSite(url, 'update-target-url');
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//
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// this.executeJavaScript(js, 'did-fail-load-but-still-loading', event);
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//
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// return;
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// }
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const js = this.jsMutator.getErrorMutator(e.errorCode, e.errorDescription);
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// tslint:disable-next-line
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this.executeJavaScript(js, 'did-fail-load', event);
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}
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);
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webview.addEventListener(
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'did-navigate',
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(event: Event) => {
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const e = event as DidNavigateEvent;
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if (e.httpResponseCode >= 400) {
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const js = this.jsMutator.getErrorMutator(e.httpResponseCode, e.httpStatusText);
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// tslint:disable-next-line
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this.executeJavaScript(js, 'did-navigate', event);
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}
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}
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);
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// webview.getWebContents().on(
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webview.addEventListener(
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'did-finish-load',
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(event: Event) => {
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this.debugLog('ImagePreview did-finish-load', event);
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}
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);
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webview.addEventListener(
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'ipc-message',
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(event: IpcMessageEvent) => {
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this.debugLog('ImagePreview ipc-message', event);
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if (event.channel === 'webview.img') {
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// tslint:disable-next-line:no-unsafe-any
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this.updatePreviewSize(parseInt(event.args[0], 10), parseInt(event.args[1], 10));
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}
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}
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);
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/* webview.getWebContents().session.on(
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'will-download',
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(e: Event) => {
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e.preventDefault();
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}
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);*/
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_.each(
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['did-start-loading', 'load-commit', 'dom-ready', 'will-navigate', 'did-navigate', 'did-navigate-in-page', 'update-target-url', 'ipc-message'],
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(en: string) => {
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webview.addEventListener(
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en,
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(event: Event) => {
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this.debugLog(`ImagePreview ${en} ${Date.now()}`, event);
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}
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);
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}
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);
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setInterval(
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() => {
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if (((this.visible) && (!this.exitInterval) && (!this.shouldDismiss)) || (this.interval))
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this.initialCursorPosition = screen.getCursorScreenPoint();
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if ((this.visible) && (this.shouldDismiss) && (this.hasMouseMovedSince()) && (!this.exitInterval) && (!this.interval)) {
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this.debugLog('ImagePreview: call hide from interval');
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this.hide();
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}
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},
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50
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);
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// this.initAdBlocker();
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}
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async initAdBlocker() {
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const webview = this.getWebview();
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const contents = remote.webContents.fromId(webview.getWebContentsId());
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console.log('INITADBLOCKER');
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const blocker = await ElectronBlocker.fromLists(
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fetch,
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[
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'https://easylist.to/easylist/easylist.txt',
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'https://easylist.to/easylist/easyprivacy.txt', // EasyPrivacy
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'https://easylist.to/easylist/fanboy-social.txt', // Fanboy Social
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'https://easylist.to/easylist/fanboy-annoyance.txt', // Fanboy Annoyances
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'https://filters.adtidy.org/extension/chromium/filters/2.txt', // AdGuard Base
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'https://filters.adtidy.org/extension/chromium/filters/11.txt', // AdGuard Mobile Ads
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'https://filters.adtidy.org/extension/chromium/filters/4.txt', // AdGuard Social Media
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'https://filters.adtidy.org/extension/chromium/filters/14.txt', // AdGuard Annoyances
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'https://raw.githubusercontent.com/uBlockOrigin/uAssets/master/filters/filters.txt', // uBlock Origin Filters
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'https://raw.githubusercontent.com/uBlockOrigin/uAssets/master/filters/privacy.txt', // uBlock Origin Privacy
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'https://raw.githubusercontent.com/uBlockOrigin/uAssets/master/filters/resource-abuse.txt', // uBlock Origin Resource Abuse
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],
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{
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enableCompression: true,
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},
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// {
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// path: 'engine.bin',
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// read: fs.readFile,
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// write: fs.writeFile
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// }
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);
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blocker.enableBlockingInSession(contents.session);
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}
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reRenderStyles(): void {
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// tslint:disable-next-line:no-unsafe-any
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this.externalPreviewStyle = this.externalPreviewHelper.renderStyle();
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// tslint:disable-next-line:no-unsafe-any
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this.localPreviewStyle = this.localPreviewHelper.renderStyle();
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this.debugLog(
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'ImagePreview: reRenderStyles', 'external',
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JSON.parse(JSON.stringify(this.externalPreviewStyle)),
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'local', JSON.parse(JSON.stringify(this.localPreviewStyle))
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);
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}
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updatePreviewSize(width: number, height: number): void {
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if (!this.externalPreviewHelper.isVisible()) {
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return;
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}
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if ((width) && (height)) {
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this.debugLog('ImagePreview: updatePreviewSize', width, height, width / height);
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this.externalPreviewHelper.setRatio(width / height);
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this.reRenderStyles();
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}
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}
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hide(): void {
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this.debugLog('ImagePreview: hide', this.externalPreviewHelper.isVisible(), this.localPreviewHelper.isVisible());
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this.cancelExitTimer();
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this.url = null;
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this.visible = false;
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this.localPreviewHelper.hide();
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this.externalPreviewHelper.hide();
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this.exitUrl = null;
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this.exitInterval = null;
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this.shouldDismiss = false;
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this.sticky = false;
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this.reRenderStyles();
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}
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dismiss(initialUrl: string, force: boolean = false): void {
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const url = this.jsMutator.mutateUrl(initialUrl);
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this.debugLog('ImagePreview: dismiss', url);
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if (this.url !== url)
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return; // simply ignore
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// if (this.debug)
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// return;
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if (this.sticky)
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return;
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// console.log('DISMISS');
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const due = this.visible ? this.MinTimePreviewVisible - Math.min(this.MinTimePreviewVisible, (Date.now() - this.visibleSince)) : 0;
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this.cancelTimer();
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if (this.exitInterval)
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return;
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this.exitUrl = this.url;
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this.shouldDismiss = true;
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if ((!this.hasMouseMovedSince()) && (!force))
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return;
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this.debugLog('ImagePreview: dismiss.exec', this.externalPreviewHelper.isVisible(), this.localPreviewHelper.isVisible(), url);
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// This timeout makes the preview window disappear with a slight delay, which helps UX
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// when dealing with situations such as quickly scrolling text that moves the cursor away
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// from the link
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// tslint:disable-next-line no-unnecessary-type-assertion
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this.exitInterval = setTimeout(
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() => this.hide(),
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due
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) as Timer;
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}
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show(initialUrl: string): void {
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const url = this.jsMutator.mutateUrl(initialUrl);
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this.debugLog('ImagePreview: show', this.externalPreviewHelper.isVisible(), this.localPreviewHelper.isVisible(),
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this.visible, this.hasMouseMovedSince(), !!this.interval, this.sticky, url);
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// console.log('SHOW');
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if ((this.visible) && (!this.exitInterval) && (!this.hasMouseMovedSince())) {
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this.debugLog('ImagePreview: show cancel: visible & not moved');
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return;
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}
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if ((this.url === url) && ((this.visible) || (this.interval))) {
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this.debugLog('ImagePreview: same url', url, this.url);
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return;
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}
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if ((this.url) && (this.sticky) && (this.visible)) {
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this.debugLog('ImagePreview: sticky visible');
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return;
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}
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this.debugLog('ImagePreview: show.exec', url);
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const due = ((url === this.exitUrl) && (this.exitInterval)) ? 0 : 100;
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this.url = url;
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this.domain = domain(url);
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this.cancelExitTimer();
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this.cancelTimer();
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// This timer makes sure that just by accidentally brushing across a link won't show (blink) the preview
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// -- you actually have to pause on it
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// tslint:disable-next-line no-unnecessary-type-assertion
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this.interval = setTimeout(
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() => {
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this.debugLog('ImagePreview: show.timeout', this.url);
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this.localPreviewHelper.match(this.domain as string)
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? this.localPreviewHelper.show(this.url as string)
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: this.localPreviewHelper.hide();
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this.externalPreviewHelper.match(this.domain as string)
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? this.externalPreviewHelper.show(this.url as string)
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: this.externalPreviewHelper.hide();
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this.interval = null;
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this.visible = true;
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this.visibleSince = Date.now();
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this.initialCursorPosition = screen.getCursorScreenPoint();
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this.reRenderStyles();
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},
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due
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) as Timer;
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}
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hasMouseMovedSince(): boolean {
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if (!this.initialCursorPosition)
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return true;
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try {
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const p = screen.getCursorScreenPoint();
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return ((p.x !== this.initialCursorPosition.x) || (p.y !== this.initialCursorPosition.y));
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} catch (err) {
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console.error('ImagePreview', err);
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return true;
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}
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}
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cancelTimer(): void {
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if (this.interval)
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clearTimeout(this.interval);
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this.interval = null;
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}
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cancelExitTimer(): void {
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if (this.exitInterval)
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clearTimeout(this.exitInterval);
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this.exitInterval = null;
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}
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isVisible(): boolean {
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return this.visible;
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}
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getUrl(): string | null {
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return this.url;
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}
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/* isExternalUrl(): boolean {
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// 'f-list.net' is tested here on purpose, because keeps the character URLs from being previewed
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return !((this.domain === 'f-list.net') || (this.domain === 'static.f-list.net'));
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}
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isInternalUrl(): boolean {
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return !this.isExternalUrl();
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}*/
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toggleDevMode(): void {
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this.debug = !this.debug;
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this.jsMutator.setDebug(this.debug);
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this.localPreviewHelper.setDebug(this.debug);
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this.externalPreviewHelper.setDebug(this.debug);
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if (this.debug) {
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const webview = this.getWebview();
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webview.openDevTools();
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}
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}
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async executeJavaScript(js: string | undefined, context: string = 'unknown', logDetails?: any): Promise<any> {
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const webview = this.getWebview();
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if (!js) {
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this.debugLog(`ImagePreview ${context}: No JavaScript to execute`, logDetails);
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return;
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}
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this.debugLog(`ImagePreview execute-${context}`, js, logDetails);
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try {
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const result = await (webview.executeJavaScript(js) as unknown as Promise<any>);
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this.debugLog(`ImagePreview result-${context}`, result);
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return result;
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} catch (err) {
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this.debugLog(`ImagePreview error-${context}`, err);
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}
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}
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debugLog(...args: any[]): void {
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if (this.debug) {
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console.log(...args);
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}
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}
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toggleStickyMode(): void {
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this.sticky = !this.sticky;
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if (!this.sticky)
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this.hide();
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}
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toggleJsMode(): void {
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this.runJs = !this.runJs;
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}
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reloadUrl(): void {
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if (this.externalPreviewHelper.isVisible()) {
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const webview = this.getWebview();
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webview.reload();
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}
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}
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getWebview(): WebviewTag {
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return this.$refs.imagePreviewExt as WebviewTag;
|
|
}
|
|
|
|
|
|
reset(): void {
|
|
this.externalPreviewHelper = new ExternalImagePreviewHelper(this);
|
|
this.localPreviewHelper = new LocalImagePreviewHelper(this);
|
|
|
|
this.url = null;
|
|
this.domain = undefined;
|
|
|
|
this.sticky = false;
|
|
this.runJs = true;
|
|
this.debug = false;
|
|
|
|
this.jsMutator = new ImagePreviewMutator(this.debug);
|
|
|
|
this.cancelExitTimer();
|
|
this.cancelTimer();
|
|
|
|
this.exitUrl = null;
|
|
|
|
this.initialCursorPosition = null;
|
|
this.shouldDismiss = false;
|
|
this.visibleSince = 0;
|
|
|
|
this.reRenderStyles();
|
|
}
|
|
}
|
|
</script>
|
|
|
|
|
|
<style lang="scss">
|
|
@import "../../node_modules/bootstrap/scss/functions";
|
|
@import "../../node_modules/bootstrap/scss/variables";
|
|
@import "../../node_modules/bootstrap/scss/mixins/breakpoints";
|
|
|
|
.image-preview-wrapper {
|
|
z-index: 10000;
|
|
display: none;
|
|
position: absolute;
|
|
left: 0;
|
|
top: 0;
|
|
width: 50%;
|
|
height: 70%;
|
|
pointer-events: none;
|
|
overflow: visible;
|
|
|
|
&.visible {
|
|
display: block;
|
|
}
|
|
|
|
&.interactive {
|
|
pointer-events: auto;
|
|
|
|
.image-preview-local,
|
|
.image-preview-auto {
|
|
// pointer-events: auto;
|
|
}
|
|
}
|
|
|
|
.image-preview-external {
|
|
/* position: absolute;
|
|
width: 50%;
|
|
height: 70%;
|
|
top: 0;
|
|
left: 0; */
|
|
width: 100%;
|
|
height: 100%;
|
|
// pointer-events: none;
|
|
background-color: black;
|
|
}
|
|
|
|
.image-preview-local {
|
|
/* position: absolute;
|
|
width: 50%;
|
|
height: 70%;
|
|
top: 0;
|
|
left: 0; */
|
|
width: 100%;
|
|
height: 100%;
|
|
// pointer-events: none;
|
|
background-size: contain;
|
|
background-position: top left;
|
|
background-repeat: no-repeat;
|
|
// background-color: black;
|
|
}
|
|
|
|
|
|
.image-preview-toolbar {
|
|
position: absolute;
|
|
/* background-color: green; */
|
|
left: 0;
|
|
top: 0;
|
|
margin: 1rem;
|
|
height: 3.5rem;
|
|
display: flex;
|
|
-webkit-backdrop-filter: blur(10px);
|
|
flex-direction: row;
|
|
width: 15rem;
|
|
flex-wrap: nowrap;
|
|
background-color: rgba(77, 76, 116, 0.92);
|
|
border-radius: 3px;
|
|
border: 1px solid rgba(255, 255, 255, 0.3);
|
|
padding: 0.5rem;
|
|
box-shadow: 2px 2px 3px rgba(0, 0, 0, 0.2);
|
|
|
|
a i.fa {
|
|
font-size: 1.25rem;
|
|
top: 50%;
|
|
position: relative;
|
|
transform: translateY(-50%);
|
|
}
|
|
|
|
a {
|
|
flex: 1;
|
|
text-align: center;
|
|
border: 1px solid rgba(255, 255, 255, 0.25);
|
|
border-radius: 3px;
|
|
margin-right: 0.5rem;
|
|
background-color: rgba(0, 0, 0, 0.1);
|
|
}
|
|
|
|
a:last-child {
|
|
margin-right: 0;
|
|
}
|
|
|
|
.toggled {
|
|
background-color: rgba(255, 255, 255, 0.2);
|
|
box-shadow: 0 0 1px 0px rgba(255, 255, 255, 0.6);
|
|
}
|
|
}
|
|
}
|
|
</style>
|