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liberama/client/components/Reader/Reader.vue
2019-02-03 15:30:26 +07:00

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<template>
<el-container>
<el-header v-show="toolBarActive" height='50px'>
<div class="header">
<el-tooltip content="Загрузить книгу" :open-delay="1000" effect="light">
<el-button ref="loader" class="tool-button" :class="buttonActiveClass('loader')" @click="buttonClick('loader')"><i class="el-icon-back"></i></el-button>
</el-tooltip>
<div>
<el-tooltip content="Действие назад" :open-delay="1000" effect="light">
<el-button ref="undoAction" class="tool-button" :class="buttonActiveClass('undoAction')" @click="buttonClick('undoAction')" ><i class="el-icon-arrow-left"></i></el-button>
</el-tooltip>
<el-tooltip content="Действие вперед" :open-delay="1000" effect="light">
<el-button ref="redoAction" class="tool-button" :class="buttonActiveClass('redoAction')" @click="buttonClick('redoAction')" ><i class="el-icon-arrow-right"></i></el-button>
</el-tooltip>
<div class="space"></div>
<el-tooltip content="На весь экран" :open-delay="1000" effect="light">
<el-button ref="fullScreen" class="tool-button" :class="buttonActiveClass('fullScreen')" @click="buttonClick('fullScreen')"><i class="el-icon-rank"></i></el-button>
</el-tooltip>
<el-tooltip content="Плавный скроллинг" :open-delay="1000" effect="light">
<el-button ref="scrolling" class="tool-button" :class="buttonActiveClass('scrolling')" @click="buttonClick('scrolling')"><i class="el-icon-sort"></i></el-button>
</el-tooltip>
<el-tooltip content="Прокрутка книги" :open-delay="1000" effect="light">
<el-button ref="setPosition" class="tool-button" :class="buttonActiveClass('setPosition')" @click="buttonClick('setPosition')"><i class="el-icon-d-arrow-right"></i></el-button>
</el-tooltip>
<el-tooltip content="Найти в тексте" :open-delay="1000" effect="light">
<el-button ref="search" class="tool-button" :class="buttonActiveClass('search')" @click="buttonClick('search')"><i class="el-icon-search"></i></el-button>
</el-tooltip>
<el-tooltip content="Скопировать текст со страницы" :open-delay="1000" effect="light">
<el-button ref="copyText" class="tool-button" :class="buttonActiveClass('copyText')" @click="buttonClick('copyText')"><i class="el-icon-edit-outline"></i></el-button>
</el-tooltip>
<el-tooltip content="Принудительно обновить книгу в обход кеша" :open-delay="1000" effect="light">
<el-button ref="refresh" class="tool-button" :class="buttonActiveClass('refresh')" @click="buttonClick('refresh')">
<i class="el-icon-refresh" :class="{clear: !showRefreshIcon}"></i>
</el-button>
</el-tooltip>
<div class="space"></div>
<el-tooltip content="Открыть недавние" :open-delay="1000" effect="light">
<el-button ref="history" class="tool-button" :class="buttonActiveClass('history')" @click="buttonClick('history')"><i class="el-icon-document"></i></el-button>
</el-tooltip>
</div>
<el-tooltip content="Настроить" :open-delay="1000" effect="light">
<el-button ref="settings" class="tool-button" :class="buttonActiveClass('settings')" @click="buttonClick('settings')"><i class="el-icon-setting"></i></el-button>
</el-tooltip>
</div>
</el-header>
<el-main>
<keep-alive>
<component ref="page" :is="activePage"
@load-book="loadBook"
@book-pos-changed="bookPosChanged"
@tool-bar-toggle="toolBarToggle"
@full-screen-toogle="fullScreenToggle"
@stop-scrolling="stopScrolling"
@scrolling-toggle="scrollingToggle"
></component>
</keep-alive>
<SetPositionPage v-if="setPositionActive" ref="setPositionPage" @set-position-toggle="setPositionToggle" @book-pos-changed="bookPosChanged"></SetPositionPage>
<SearchPage v-show="searchActive" ref="searchPage"
@search-toggle="searchToggle"
@book-pos-changed="bookPosChanged"
@start-text-search="startTextSearch"
@stop-text-search="stopTextSearch">
</SearchPage>
<HistoryPage v-if="historyActive" ref="historyPage" @load-book="loadBook" @history-toggle="historyToggle"></HistoryPage>
<SettingsPage v-if="settingsActive" ref="settingsPage" @settings-toggle="settingsToggle"></SettingsPage>
</el-main>
</el-container>
</template>
<script>
//-----------------------------------------------------------------------------
import Vue from 'vue';
import Component from 'vue-class-component';
import LoaderPage from './LoaderPage/LoaderPage.vue';
import TextPage from './TextPage/TextPage.vue';
import ProgressPage from './ProgressPage/ProgressPage.vue';
import SetPositionPage from './SetPositionPage/SetPositionPage.vue';
import SearchPage from './SearchPage/SearchPage.vue';
import HistoryPage from './HistoryPage/HistoryPage.vue';
import SettingsPage from './SettingsPage/SettingsPage.vue';
import bookManager from './share/bookManager';
import readerApi from '../../api/reader';
import _ from 'lodash';
import {sleep} from '../../share/utils';
export default @Component({
components: {
LoaderPage,
TextPage,
ProgressPage,
SetPositionPage,
SearchPage,
HistoryPage,
SettingsPage,
},
watch: {
bookPos: function(newValue) {
if (newValue !== undefined && this.activePage == 'TextPage') {
const textPage = this.$refs.page;
if (textPage.bookPos != newValue) {
textPage.bookPos = newValue;
}
this.debouncedSetRecentBook(newValue);
}
},
routeParamPos: function(newValue) {
if (newValue !== undefined && newValue != this.bookPos) {
this.bookPos = newValue;
}
},
routeParamUrl: function(newValue) {
if (newValue !== '' && newValue !== this.mostRecentBook().url) {
this.loadBook({url: newValue, bookPos: this.routeParamPos});
}
},
settings: function(newValue) {
this.allowUrlParamBookPos = newValue.allowUrlParamBookPos;
this.updateRoute();
},
},
})
class Reader extends Vue {
loaderActive = false;
progressActive = false;
fullScreenActive = false;
scrollingActive = false;
setPositionActive = false;
searchActive = false;
copyTextActive = false;
historyActive = false;
settingsActive = false;
bookPos = null;
allowUrlParamBookPos = false;
showRefreshIcon = true;
created() {
this.commit = this.$store.commit;
this.dispatch = this.$store.dispatch;
this.reader = this.$store.state.reader;
this.$root.addKeyHook(this.keyHook);
this.lastActivePage = false;
this.debouncedUpdateRoute = _.debounce(() => {
this.updateRoute();
}, 1000);
this.debouncedSetRecentBook = _.debounce(async(newValue) => {
const recent = this.mostRecentBook();
if (recent && recent.bookPos != newValue) {
await bookManager.setRecentBook(Object.assign({}, recent, {bookPos: newValue, bookPosSeen: this.bookPosSeen}));
}
}, 500);
document.addEventListener('fullscreenchange', () => {
this.fullScreenActive = (document.fullscreenElement !== null);
});
this.allowUrlParamBookPos = this.settings.allowUrlParamBookPos;
}
mounted() {
if (this.$root.rootRoute == '/reader') {
if (this.routeParamUrl) {
this.loadBook({url: this.routeParamUrl, bookPos: this.routeParamPos});
} else if (this.mostRecentBook()) {
this.loadBook({url: this.this.mostRecentBook().url});
} else {
this.loaderActive = true;
}
}
}
get routeParamPos() {
let result = undefined;
const q = this.$route.query;
if (q['__p']) {
result = q['__p'];
if (Array.isArray(result))
result = result[0];
}
return (result ? parseInt(result, 10) || 0 : result);
}
updateRoute(isNewRoute) {
const pos = (this.bookPos != undefined && this.allowUrlParamBookPos ? `__p=${this.bookPos}&` : '');
const url = (this.mostRecentBook() ? `url=${this.mostRecentBook().url}` : '');
if (isNewRoute)
this.$router.push(`/reader?${pos}${url}`);
else
this.$router.replace(`/reader?${pos}${url}`);
}
get routeParamUrl() {
let result = '';
const path = this.$route.fullPath;
const i = path.indexOf('url=');
if (i >= 0) {
result = path.substr(i + 4);
}
return decodeURIComponent(result);
}
bookPosChanged(event) {
if (event.bookPosSeen !== undefined)
this.bookPosSeen = event.bookPosSeen;
this.bookPos = event.bookPos;
this.debouncedUpdateRoute();
}
get toolBarActive() {
return this.reader.toolBarActive;
}
mostRecentBook() {
const result = bookManager.mostRecentBook();
if (!result)
this.closeAllTextPages();
return result;
}
get settings() {
return this.$store.state.reader.settings;
}
toolBarToggle() {
this.commit('reader/setToolBarActive', !this.toolBarActive);
this.$root.$emit('resize');
}
fullScreenToggle() {
this.fullScreenActive = !this.fullScreenActive;
if (this.fullScreenActive) {
const element = document.documentElement;
if (element.requestFullscreen) {
element.requestFullscreen();
} else if (element.webkitrequestFullscreen) {
element.webkitRequestFullscreen();
} else if (element.mozRequestFullscreen) {
element.mozRequestFullScreen();
}
} else {
if (document.cancelFullScreen) {
document.cancelFullScreen();
} else if (document.mozCancelFullScreen) {
document.mozCancelFullScreen();
} else if (document.webkitCancelFullScreen) {
document.webkitCancelFullScreen();
}
}
}
closeAllTextPages() {
this.setPositionActive = false;
this.historyActive = false;
this.settingsActive = false;
this.stopScrolling();
this.stopSearch();
}
loaderToggle() {
this.loaderActive = !this.loaderActive;
if (this.loaderActive) {
this.closeAllTextPages();
}
}
setPositionToggle() {
this.setPositionActive = !this.setPositionActive;
if (this.setPositionActive && this.activePage == 'TextPage' && this.mostRecentBook()) {
this.closeAllTextPages();
this.setPositionActive = true;
this.$nextTick(() => {
this.$refs.setPositionPage.sliderMax = this.mostRecentBook().textLength - 1;
this.$refs.setPositionPage.sliderValue = this.mostRecentBook().bookPos;
});
} else {
this.setPositionActive = false;
}
}
stopScrolling() {
if (this.scrollingActive)
this.scrollingToggle();
}
scrollingToggle() {
this.scrollingActive = !this.scrollingActive;
if (this.activePage == 'TextPage') {
const page = this.$refs.page;
if (this.scrollingActive) {
page.startTextScrolling();
} else {
page.stopTextScrolling();
}
}
}
stopSearch() {
if (this.searchActive)
this.searchToggle();
}
startTextSearch(opts) {
if (this.activePage == 'TextPage')
this.$refs.page.startSearch(opts.needle);
}
stopTextSearch() {
if (this.activePage == 'TextPage')
this.$refs.page.stopSearch();
}
searchToggle() {
this.searchActive = !this.searchActive;
const page = this.$refs.page;
if (this.searchActive && this.activePage == 'TextPage' && page.parsed && this.mostRecentBook()) {
this.closeAllTextPages();
this.searchActive = true;
this.$nextTick(() => {
this.$refs.searchPage.init(page.parsed);
});
} else {
this.stopTextSearch();
this.searchActive = false;
}
}
historyToggle() {
this.historyActive = !this.historyActive;
if (this.historyActive) {
this.closeAllTextPages();
this.historyActive = true;
} else {
this.historyActive = false;
}
}
settingsToggle() {
this.settingsActive = !this.settingsActive;
if (this.settingsActive) {
this.closeAllTextPages();
this.settingsActive = true;
} else {
this.settingsActive = false;
}
}
buttonClick(button) {
switch (button) {
case 'loader':
this.loaderToggle();
break;
case 'fullScreen':
this.fullScreenToggle();
break;
case 'setPosition':
this.setPositionToggle();
break;
case 'scrolling':
this.scrollingToggle();
break;
case 'search':
this.searchToggle();
break;
case 'history':
this.historyToggle();
break;
case 'refresh':
if (this.mostRecentBook()) {
this.loadBook({url: this.mostRecentBook().url, force: true});
}
break;
case 'settings':
this.settingsToggle();
break;
}
this.$refs[button].$el.blur();
}
buttonActiveClass(button) {
const classActive = { 'tool-button-active': true, 'tool-button-active:hover': true };
const classDisabled = { 'tool-button-disabled': true, 'tool-button-disabled:hover': true };
let classResult = {};
switch (button) {
case 'loader':
case 'fullScreen':
case 'setPosition':
case 'scrolling':
case 'search':
case 'copyText':
case 'history':
case 'settings':
if (this[`${button}Active`])
classResult = classActive;
break;
}
if (this.activePage == 'LoaderPage' || !this.mostRecentBook()) {
switch (button) {
case 'undoAction':
case 'redoAction':
case 'setPosition':
case 'scrolling':
case 'search':
case 'copyText':
classResult = classDisabled;
break;
case 'history':
case 'refresh':
if (!this.mostRecentBook())
classResult = classDisabled;
break;
}
}
return classResult;
}
get activePage() {
let result = '';
if (this.progressActive)
result = 'ProgressPage';
else if (this.loaderActive)
result = 'LoaderPage';
else if (this.mostRecentBook())
result = 'TextPage';
if (!result) {
this.loaderActive = true;
result = 'LoaderPage';
}
if (result != 'TextPage') {
this.$root.$emit('set-app-title');
}
if (this.lastActivePage != result && result == 'TextPage') {
//акивируем страницу с текстом
this.$nextTick(async() => {
const last = this.mostRecentBook();
const isParsed = await bookManager.hasBookParsed(last);
if (!isParsed) {
this.$root.$emit('set-app-title');
return;
}
this.updateRoute();
const textPage = this.$refs.page;
if (textPage.showBook) {
textPage.lastBook = last;
textPage.bookPos = (last.bookPos !== undefined ? last.bookPos : 0);
textPage.showBook();
}
});
}
this.lastActivePage = result;
return result;
}
loadBook(opts) {
this.closeAllTextPages();
this.progressActive = true;
this.$nextTick(async() => {
const progress = this.$refs.page;
try {
progress.show();
progress.setState({state: 'parse'});
// есть ли среди недавних
const key = bookManager.keyFromUrl(opts.url);
let wasOpened = await bookManager.getRecentBook({key});
wasOpened = (wasOpened ? wasOpened : {});
const bookPos = (opts.bookPos !== undefined ? opts.bookPos : wasOpened.bookPos);
const bookPosSeen = (opts.bookPos !== undefined ? opts.bookPos : wasOpened.bookPosSeen);
let book = null;
if (!opts.force) {
// пытаемся загрузить и распарсить книгу в менеджере из локального кеша
const bookParsed = await bookManager.getBook({url: opts.url}, (prog) => {
progress.setState({progress: prog});
});
// если есть в локальном кеше
if (bookParsed) {
await bookManager.setRecentBook(Object.assign({bookPos, bookPosSeen}, bookManager.metaOnly(bookParsed)));
this.loaderActive = false;
progress.hide(); this.progressActive = false;
this.blinkCachedLoadMessage();
return;
}
// иначе идем на сервер
// пытаемся загрузить готовый файл с сервера
if (wasOpened.path) {
try {
const resp = await readerApi.loadCachedBook(wasOpened.path, (state) => {
progress.setState(state);
});
book = Object.assign({}, wasOpened, {data: resp.data});
} catch (e) {
//молчим
}
}
}
progress.setState({totalSteps: 5});
// не удалось, скачиваем книгу полностью с конвертацией
let loadCached = true;
if (!book) {
book = await readerApi.loadBook(opts.url, (state) => {
progress.setState(state);
});
loadCached = false;
}
// добавляем в bookManager
progress.setState({state: 'parse', step: 5});
const addedBook = await bookManager.addBook(book, (prog) => {
progress.setState({progress: prog});
});
// добавляем в историю
await bookManager.setRecentBook(Object.assign({bookPos, bookPosSeen}, bookManager.metaOnly(addedBook)));
this.updateRoute(true);
this.loaderActive = false;
progress.hide(); this.progressActive = false;
if (loadCached) {
this.blinkCachedLoadMessage();
} else
this.stopBlink = true;
} catch (e) {
progress.hide(); this.progressActive = false;
this.loaderActive = true;
this.$alert(e.message, 'Ошибка', {type: 'error'});
}
});
}
blinkCachedLoadMessage() {
this.blinkCount = 30;
if (!this.inBlink) {
this.inBlink = true;
this.stopBlink = false;
this.$nextTick(async() => {
let page = this.$refs.page;
while (this.blinkCount) {
this.showRefreshIcon = !this.showRefreshIcon;
if (page.blinkCachedLoadMessage)
page.blinkCachedLoadMessage(this.showRefreshIcon);
await sleep(500);
if (this.stopBlink)
break;
this.blinkCount--;
page = this.$refs.page;
}
this.showRefreshIcon = true;
this.inBlink = false;
if (page.blinkCachedLoadMessage)
page.blinkCachedLoadMessage('finish');
});
}
}
keyHook(event) {
if (this.$root.rootRoute == '/reader') {
let handled = false;
if (!handled && this.settingsActive)
handled = this.$refs.settingsPage.keyHook(event);
if (!handled && this.historyActive)
handled = this.$refs.historyPage.keyHook(event);
if (!handled && this.setPositionActive)
handled = this.$refs.setPositionPage.keyHook(event);
if (!handled && this.searchActive)
handled = this.$refs.searchPage.keyHook(event);
if (!handled && this.$refs.page && this.$refs.page.keyHook)
handled = this.$refs.page.keyHook(event);
if (!handled && event.type == 'keydown') {
if (event.code == 'Escape')
this.loaderToggle();
if (this.activePage == 'TextPage') {
switch (event.code) {
case 'KeyP':
this.setPositionToggle();
break;
case 'KeyF':
if (event.ctrlKey) {
this.searchToggle();
event.preventDefault();
event.stopPropagation();
}
break;
case 'KeyZ':
this.scrollingToggle();
break;
case 'KeyH':
this.historyToggle();
break;
case 'KeyS':
this.settingsToggle();
break;
}
}
}
}
}
}
//-----------------------------------------------------------------------------
</script>
<style scoped>
.el-container {
padding: 0;
margin: 0;
height: 100%;
}
.el-header {
padding-left: 5px;
padding-right: 5px;
background-color: #1B695F;
color: #000;
overflow-x: auto;
overflow-y: hidden;
}
.header {
display: flex;
justify-content: space-between;
min-width: 550px;
}
.el-main {
position: relative;
display: flex;
padding: 0;
margin: 0;
background-color: #EBE2C9;
color: #000;
}
.tool-button {
margin: 0 2px 0 2px;
padding: 0;
color: #3E843E;
background-color: #E6EDF4;
margin-top: 5px;
height: 38px;
width: 38px;
border: 0;
box-shadow: 3px 3px 5px black;
}
.tool-button:hover {
background-color: white;
}
.tool-button-active {
box-shadow: 0 0 0;
color: white;
background-color: #8AB45F;
position: relative;
top: 1px;
left: 1px;
}
.tool-button-active:hover {
color: white;
background-color: #81C581;
}
.tool-button-disabled {
color: lightgray;
background-color: gray;
}
.tool-button-disabled:hover {
color: lightgray;
background-color: gray;
}
i {
font-size: 200%;
}
.space {
width: 10px;
display: inline-block;
}
.clear {
color: rgba(0,0,0,0);
}
</style>