liberama/client/components/ExternalLibs/ExternalLibs.vue

<template>
    <Window ref="window" @close="close" margin="2px">
        <template slot="header">
            {{ header }}
        </template>

        <template slot="buttons">
            <span class="full-screen-button row justify-center items-center" @mousedown.stop @click="fullScreenToggle">
                <q-icon :name="(fullScreenActive ? 'la la-compress-arrows-alt': 'la la-expand-arrows-alt')" size="16px"/>
                <q-tooltip :delay="1500" anchor="bottom middle" content-style="font-size: 80%">На весь экран</q-tooltip>
            </span>
        </template>

        <div v-show="ready" class="col column" style="min-width: 600px">
            <div class="row items-center q-px-sm" style="height: 50px">
                <q-select class="q-mr-sm" v-model="rootLink" :options="rootLinkOptions"
                    style="width: 230px"
                    dropdown-icon="la la-angle-down la-sm"
                    rounded outlined dense emit-value map-options display-value-sanitize options-sanitize
                >
                    <template v-slot:prepend>
                        <q-btn class="q-mr-xs" round dense color="blue" icon="la la-plus" @click.stop="addBookmark" size="12px">
                            <q-tooltip :delay="1500" anchor="bottom middle" content-style="font-size: 80%">Добавить закладку</q-tooltip>
                        </q-btn>
                        <q-btn round dense color="blue" icon="la la-bars" @click.stop="bookmarkSettings"  size="12px" disabled>
                            <q-tooltip :delay="1500" anchor="bottom middle" content-style="font-size: 80%">Настроить закладки (пока недоступно)</q-tooltip>                            
                        </q-btn>
                    </template>
                    <template v-slot:selected>
                        <div style="overflow: hidden; white-space: nowrap;">{{ removeProtocol(rootLink) }}</div>
                    </template>
                </q-select>
                <q-select class="q-mr-sm" v-model="selectedLink" :options="selectedLinkOptions" style="width: 50px"
                    dropdown-icon="la la-angle-down la-sm"
                    rounded outlined dense emit-value map-options hide-selected display-value-sanitize options-sanitize
                >
                    <q-tooltip :delay="1500" anchor="bottom middle" content-style="font-size: 80%">Закладки</q-tooltip>
                </q-select>
                <q-input class="col q-mr-sm" ref="input" rounded outlined dense bg-color="white" v-model="bookUrl" placeholder="Скопируйте сюда URL книги" @focus="onInputFocus">
                    <template v-slot:prepend>
                        <q-btn class="q-mr-xs" round dense color="blue" icon="la la-home" @click="goToLink(libs.startLink)" size="12px">
                            <q-tooltip :delay="1500" anchor="bottom middle" content-style="font-size: 80%">Вернуться на стартовую страницу</q-tooltip>
                        </q-btn>
                        <q-btn round dense color="blue" icon="la la-angle-double-down" @click="openBookUrlInFrame" size="12px">
                            <q-tooltip :delay="1500" anchor="bottom middle" content-style="font-size: 80%">Загрузить URL во фрейм</q-tooltip>
                        </q-btn>
                    </template>
                </q-input>
                <q-btn rounded color="green-7" no-caps size="14px" @click="submitUrl">Открыть
                    <q-tooltip :delay="1500" anchor="bottom middle" content-style="font-size: 80%">Открыть в читалке</q-tooltip>
                </q-btn>
            </div>
            <div class="separator"></div>

            <iframe v-if="frameVisible" class="col fit" ref="frame" :src="frameSrc" frameborder="0"></iframe>

            <Dialog ref="dialogAddBookmark" v-model="addBookmarkVisible">
                <template slot="header">
                    <div class="row items-center">
                        <q-icon class="q-mr-sm" name="la la-bookmark" size="28px"></q-icon>
                        Добавить закладку
                    </div>
                </template>

                <div class="q-mx-md row">
                    <q-input ref="bookmarkLink" class="col q-mr-sm" outlined dense bg-color="white" v-model="bookmarkLink" 
                        placeholder="Ссылка для закладки" maxlength="2000" @focus="onInputFocus">
                    </q-input>

                    <q-select class="q-mr-sm" v-model="defaultRootLink" :options="defaultRootLinkOptions" style="width: 50px"
                        dropdown-icon="la la-angle-down la-sm"
                        outlined dense emit-value map-options hide-selected display-value-sanitize options-sanitize
                    >
                        <q-tooltip :delay="1500" anchor="bottom middle" content-style="font-size: 80%">Предустановленные ссылки</q-tooltip>
                    </q-select>
                </div>

                <div class="q-mx-md q-mt-md">
                    <q-input class="col q-mr-sm" outlined dense bg-color="white" v-model="bookmarkDesc" 
                        placeholder="Описание" style="width: 400px" maxlength="100" @focus="onInputFocus">
                    </q-input>
                </div>

                <template slot="footer">
                    <q-btn class="q-px-md q-ml-sm" dense no-caps v-close-popup>Отмена</q-btn>
                    <q-btn class="q-px-md q-ml-sm" color="primary" dense no-caps @click="okAddBookmark" :disabled="!bookmarkLink">OK</q-btn>
                </template>
            </Dialog>
        </div>
    </Window>
</template>

<script>
//-----------------------------------------------------------------------------
import Vue from 'vue';
import Component from 'vue-class-component';
import _ from 'lodash';

import Window from '../share/Window.vue';
import Dialog from '../share/Dialog.vue';
import rstore from '../../store/modules/reader';
import * as utils from '../../share/utils';

const proxySubst = {
    'http://flibusta.is': 'http://b.liberama.top:23480',
};

export default @Component({
    components: {
        Window,
        Dialog
    },
    watch: {
        libs: function() {
            this.loadLibs();
        },
        rootLink: function() {
            this.updateSelectedLink();
            this.updateStartLink();
        },
        selectedLink: function() {
            this.updateStartLink();
        },
        defaultRootLink: function() {
            this.updateBookmarkLink();
        }
    }    
})
class ExternalLibs extends Vue {
    ready = false;
    frameVisible = false;
    startLink = '';
    rootLink = '';
    selectedLink = '';
    frameSrc = '';
    bookUrl = '';
    libs = {};
    fullScreenActive = false;
    addBookmarkVisible = false;

    bookmarkLink = '';
    bookmarkDesc = '';
    defaultRootLink = '';

    created() {
        this.$root.addKeyHook(this.keyHook);

        document.addEventListener('fullscreenchange', () => {
            this.fullScreenActive = (document.fullscreenElement !== null);
        });

        //this.commit = this.$store.commit;
        //this.commit('reader/setLibs', rstore.libsDefaults);
    }

    mounted() {
        (async() => {
            //подождем this.mode
            let i = 0;
            while(!this.mode && i < 100) {
                await utils.sleep(100);
                i++;
            }

            if (this.mode != 'liberama.top') {
                this.$router.replace('/404');
                return;
            }

            this.$refs.window.init();

            this.opener = null;
            const host = window.location.host;
            const openerHost = (host.indexOf('b.') == 0 ? host.substring(2) : host);
            const openerOrigin1 = `http://${openerHost}`;
            const openerOrigin2 = `https://${openerHost}`;

            window.addEventListener('message', (event) => {
                if (event.origin !== openerOrigin1 && event.origin !== openerOrigin2)
                    return;
                if (!_.isObject(event.data) || event.data.from != 'LibsPage')
                    return;
                if (event.origin == openerOrigin1)
                    this.opener = window.opener;
                else
                    this.opener = event.source;
                this.openerOrigin = event.origin;

                //console.log(event);

                this.recvMessage(event.data);
            });

            //Ожидаем родителя
            i = 0;
            while(!this.opener) {
                await utils.sleep(1000);
                i++;
                if (i >= 5) {
                    await this.$root.stdDialog.alert('Нет связи с читалкой. Окно будет закрыто', 'Ошибка');
                    window.close();
                }
            }

            //Проверка закрытия родительского окна
            while(this.opener) {
                await this.checkOpener();
                await utils.sleep(1000);
            }
        })();
    }

    recvMessage(d) {
        if (d.type == 'mes') {
            switch(d.data) {
                case 'hello': this.sendMessage({type: 'mes', data: 'ready'}); break;
            }
        } else if (d.type == 'libs') {
            this.ready = true;
            this.libs = _.cloneDeep(d.data);
            if (!this.frameSrc)
                this.goToLink(this.libs.startLink);
        } else if (d.type == 'notify') {
            this.$root.notify.success(d.data, '', {position: 'bottom-right'});
        }
    }

    sendMessage(d) {
        (async() => {
            await this.checkOpener();
            if (this.opener && this.openerOrigin)
                this.opener.postMessage(Object.assign({}, {from: 'ExternalLibs'}, d), this.openerOrigin);
        })();
    }

    async checkOpener() {
        if (this.opener.closed) {
            await this.$root.stdDialog.alert('Потеряна связь с читалкой. Окно будет закрыто', 'Ошибка');
            window.close();
        }
    }

    commitLibs(libs) {
        this.sendMessage({type: 'libs', data: libs});
    }

    loadLibs() {
        const libs = this.libs;
        this.startLink = (libs.comment ? libs.comment + ' ': '') + this.removeProtocol(libs.startLink);
        this.rootLink = this.getOrigin(libs.startLink);
        this.updateSelectedLink();
    }

    get mode() {
        return this.$store.state.config.mode;
    }

    get header() {
        let result = (this.ready ? 'Библиотека' : 'Загрузка...');
        if (this.ready && this.startLink) {
            result += ` | ${this.startLink}`;
        }
        this.$root.$emit('set-app-title', result);
        return result;
    }

    updateSelectedLink() {
        if (!this.ready)
            return;
        const index = this.getRootIndexByUrl(this.libs.groups, this.rootLink);
        if (index >= 0)
            this.selectedLink = this.libs.groups[index].s;
    }

    updateStartLink() {
        if (!this.ready)
            return;
        const index = this.getRootIndexByUrl(this.libs.groups, this.rootLink);
        if (index >= 0) {
            let libs = _.cloneDeep(this.libs);
            libs.groups[index].s = this.selectedLink;
            libs.startLink = this.selectedLink;
            libs.comment = this.getCommentByLink(libs.groups[index].list, this.selectedLink);
            this.goToLink(this.selectedLink);
            this.commitLibs(libs);
        }
    }

    get rootLinkOptions() {
        let result = [];
        if (!this.ready)
            return result;

        this.libs.groups.forEach(group => {
            result.push({label: this.removeProtocol(group.r), value: group.r});
        });

        return result;
    }

    get defaultRootLinkOptions() {
        let result = [];

        rstore.libsDefaults.groups.forEach(group => {
            result.push({label: this.removeProtocol(group.r), value: group.r});
        });

        return result;
    }

    get selectedLinkOptions() {
        let result = [];
        if (!this.ready)
            return result;

        const index = this.getRootIndexByUrl(this.libs.groups, this.rootLink);
        if (index >= 0) {
            this.libs.groups[index].list.forEach(link => {
                result.push({label: (link.c ? link.c + ' ': '') + this.removeOrigin(link.l), value: link.l});
            });
        }

        return result;
    }

    openBookUrlInFrame() {
        if (this.bookUrl) {
            this.goToLink(this.addProtocol(this.bookUrl));
        }
    }

    goToLink(link) {
        if (!this.ready)
            return;

        this.frameSrc = this.makeProxySubst(link);
        this.frameVisible = false;
        this.$nextTick(() => {
            this.frameVisible = true;
            this.$nextTick(() => {
                this.$refs.frame.contentWindow.focus();
            });
        });
    }

    addProtocol(url) {
        if ((url.indexOf('http://') != 0) && (url.indexOf('https://') != 0))
            return 'http://' + url;
        return url;
    }

    removeProtocol(url) {
        return url.replace(/(^\w+:|^)\/\//, '');
    }

    getOrigin(url) {
        const parsed = new URL(url);
        return parsed.origin;
    }

    removeOrigin(url) {
        const parsed = new URL(url);
        const result = url.substring(parsed.origin.length);
        return (result ? result : '/');
    }

    getRootIndexByUrl(groups, url) {
        if (!this.ready)
            return -1;
        const origin = this.getOrigin(url);
        for (let i = 0; i < groups.length; i++) {
            if (groups[i].r == origin)
                return i;
        }
        return -1;
    }

    getListItemByLink(list, link) {
        for (const item of list) {
            if (item.l == link)
                return item;
        }
        return null;
    }

    getCommentByLink(list, link) {
        const item = this.getListItemByLink(list, link);
        return (item ? item.c : '');
    }

    makeProxySubst(url, reverse = false) {
        for (const [key, value] of Object.entries(proxySubst)) {
            if (reverse && value == url.substring(0, value.length)) {
                return key + url.substring(value.length);
            } else if (key == url.substring(0, key.length)) {
                return value + url.substring(key.length);
            }
        }

        return url;
    }

    onInputFocus(event) {
        if (event.target.select)
            event.target.select();
    }

    submitUrl() {
        if (this.bookUrl) {
            this.sendMessage({type: 'submitUrl', data: {
                url: this.makeProxySubst(this.addProtocol(this.bookUrl), true), 
                force: true
            }});
            this.bookUrl = '';
            if (this.libs.closeAfterSubmit)
                this.close();
        }
    }

    addBookmark() {
        this.bookmarkLink = (this.bookUrl ? this.makeProxySubst(this.addProtocol(this.bookUrl), true) : '');
        this.bookmarkDesc = '';
        this.addBookmarkVisible = true;
        this.$nextTick(() => {
            this.$refs.bookmarkLink.focus();
        });
    }

    updateBookmarkLink() {
        const index = this.getRootIndexByUrl(rstore.libsDefaults.groups, this.defaultRootLink);
        if (index >= 0) {
            this.bookmarkLink = rstore.libsDefaults.groups[index].s;
            this.bookmarkDesc = this.getCommentByLink(rstore.libsDefaults.groups[index].list, this.bookmarkLink);
        } else {
            this.bookmarkLink = '';
            this.bookmarkDesc = '';
        }
    }

    async okAddBookmark() {
        const link = this.addProtocol(this.bookmarkLink);
        let index = -1;
        try {
            index = this.getRootIndexByUrl(this.libs.groups, link);
        } catch (e) {
            await this.$root.stdDialog.alert('Неверный формат ссылки', 'Ошибка');
            return;
        }

        //есть группа в закладках
        if (index >= 0) {
            const item = this.getListItemByLink(this.libs.groups[index].list, link);
            
            if (!item || item.c != this.bookmarkDesc) {
                //добавляем
                let libs = _.cloneDeep(this.libs);

                if (libs.groups[index].list.length >= 100) {
                    await this.$root.stdDialog.alert('Достигнут предел количества закладок для этого сайта', 'Ошибка');
                    return;
                }

                libs.groups[index].list.push({l: link, c: this.bookmarkDesc});
                this.commitLibs(libs);
            }
        } else {//нет группы в закладках
            let libs = _.cloneDeep(this.libs);

            if (libs.groups.length >= 100) {
                await this.$root.stdDialog.alert('Достигнут предел количества различных сайтов в закладках', 'Ошибка');
                return;
            }

            //добавляем сначала группу
            libs.groups.push({r: this.getOrigin(link), s: link, list: []});
            
            index = this.getRootIndexByUrl(libs.groups, link);
            if (index >= 0)
                libs.groups[index].list.push({l: link, c: this.bookmarkDesc});

            this.commitLibs(libs);
        }

        this.addBookmarkVisible = false;
    }

    bookmarkSettings() {
    }

    fullScreenToggle() {
        this.fullScreenActive = !this.fullScreenActive;
        if (this.fullScreenActive) {
            this.$q.fullscreen.request();
        } else {
            this.$q.fullscreen.exit();
        }
    }

    close() {
        this.sendMessage({type: 'close'});
    }

    keyHook() {
        if (this.$root.rootRoute() == '/external-libs') {
            if (this.$refs.dialogAddBookmark.active)
                return false;

            //недостатки сторонних ui
            const input = this.$refs.input.$refs.input;
            if (document.activeElement === input && event.type == 'keydown' && event.key == 'Enter') {
                this.submitUrl();
                return true;
            }

            if (event.type == 'keydown' && event.key == 'Escape') {
                this.close();
            }
            return true;
        }
        return false;
    }

}
//-----------------------------------------------------------------------------
</script>

<style scoped>
.separator {
    height: 1px;
    background-color: #A0A0A0;
}

.full-screen-button {
    width: 30px;
    height: 30px;
    cursor: pointer;
}

.full-screen-button:hover {
    background-color: #69C05F;
}

</style>