fix eslint reported issues

3 files changed, 573 insertions, 566 deletions

diff --git a/js/app.js b/js/app.js
index 4f5631e..b12ce03 100644
--- a/js/app.js
+++ b/js/app.js
@@ -1,556 +1,557 @@
-'use strict';

-

-/* global localforage, EpubeApp */

-

-$.urlParam = function(name){

-    try {

-        const results = new RegExp('[\?&]' + name + '=([^&#]*)').exec(window.location.href);

-        return decodeURIComponent(results[1].replace(/\+/g, " ")) || 0;

-    } catch (e) {

-        return 0;

-    }

-};

-

-const Cookie = {

-    set: function (name, value, lifetime) {

-        const d = new Date();

-        d.setTime(d.getTime() + lifetime * 1000);

-        const expires = "expires=" + d.toUTCString();

-        document.cookie = name + "=" + encodeURIComponent(value) + "; " + expires;

-    },

-    get: function (name) {

-        name = name + "=";

-        const ca = document.cookie.split(';');

-        for (let i=0; i < ca.length; i++) {

-            let c = ca[i];

-            while (c.charAt(0) == ' ') c = c.substring(1);

-            if (c.indexOf(name) == 0) return decodeURIComponent(c.substring(name.length, c.length));

-        }

-        return "";

-    },

-    delete: function(name) {

-        const expires = "expires=Thu, 01-Jan-1970 00:00:01 GMT";

-        document.cookie = name + "=" + "" + "; " + expires;

-    }

-};

-

-const App = {

-    _dl_progress_timeout: false,

-    index_mode: "",

-    last_mtime: -1,

-    init: function() {

-        let refreshed_files = 0;

-

-        if (typeof EpubeApp != "undefined") {

-            $(".navbar").hide();

-            $(".epube-app-filler").show();

-            $(".separate-search").show();

-

-            if ($.urlParam("mode") == "favorites")

-                EpubeApp.setPage("PAGE_FAVORITES");

-            else

-                EpubeApp.setPage("PAGE_LIBRARY");

-        }

-

-        App.initNightMode();

-        App.initOfflineEvents();

-

-        if ('serviceWorker' in navigator) {

-            navigator.serviceWorker.addEventListener('message', function(event) {

-

-                if (event.data == 'refresh-started') {

-                    console.log('cache refresh started');

-                    refreshed_files = 0;

-

-                    $(".dl-progress")

-                        .fadeIn()

-                        .text("Loading, please wait...");

-                }

-

-                if (event.data && event.data.indexOf("refreshed:") == 0) {

-                    ++refreshed_files;

-

-                    $(".dl-progress")

-                        .fadeIn()

-                        .text("Updated " + refreshed_files + " files...");

-                }

-

-                if (event.data == 'client-reload') {

-                    localforage.setItem("epube.cache-timestamp", App.last_mtime);

-                    window.location.reload()

-                }

-

-            });

-        } else {

-            $(".container-main")

-                .addClass("alert alert-danger")

-                .html("Service worker support missing in browser (are you using plain HTTP?).");

-        }

-

-        App.showCovers();

-        App.Offline.markBooks();

-        App.refreshCache();

-

-    },

-    showSummary: function(elem) {

-        const id = elem.getAttribute("data-book-id");

-

-        $.post("backend.php", {op: 'getinfo', id: id}, function(data) {

-

-            const comment = data.comment ? data.comment : 'No description available';

-

-            $("#summary-modal .modal-title").html(data.title);

-            $("#summary-modal .book-summary").html(comment);

-

-            $("#summary-modal").modal();

-

-        });

-

-        return false;

-    },

-    showCovers: function() {

-        $("img[data-book-id]").each((i,e) => {

-            e = $(e);

-

-            if (e.attr('data-cover-link')) {

-                const img = $("<img>")

-                    .on("load", function() {

-                        e.css("background-image", "url(" + e.attr('data-cover-link') + ")")

-                            .fadeIn();

-

-                        img.attr("src", null);

-                    })

-                    .attr("src", e.attr('data-cover-link'));

-            } else {

-                e.attr('src', 'holder.js/130x190?auto=yes').fadeIn();

-            }

-        });

-

-        Holder.run();

-    },

-    toggleFavorite: function(elem) {

-        const bookId = elem.getAttribute("data-book-id");

-

-        if (elem.getAttribute("data-is-fav") == "0" || confirm("Remove favorite?")) {

-

-            $.post("backend.php", {op: "togglefav", id: bookId}, function(data) {

-                if (data) {

-                    let msg = "[Error]";

-

-                    if (data.status == 0) {

-                        msg = "Add to favorites";

-                    } else if (data.status == 1) {

-                        msg = "Remove from favorites";

-                    }

-

-                    $(elem).html(msg).attr('data-is-fav', data.status);

-

-                    if (App.index_mode == "favorites" && data.status == 0) {

-                        $("#cell-" + bookId).remove();

-                    }

-                }

-            });

-        }

-

-        return false;

-    },

-    refreshCache: function(force) {

-        if ('serviceWorker' in navigator) {

-            localforage.getItem("epube.cache-timestamp").then(function(stamp) {

-                if (force || stamp != App.last_mtime) {

-                    console.log('asking worker to refresh cache');

-

-                    if (navigator.serviceWorker.controller) {

-                        navigator.serviceWorker.controller.postMessage("refresh-cache");

-                    } else {

-                        localforage.getItem("epube.initial-load-done").then(function(done) {

-

-                            console.log("initial load done", done);

-

-                            if (done) {

-                                $(".dl-progress")

-                                    .show()

-                                    .addClass("alert-danger")

-                                    .html("Could not communicate with service worker. Try reloading the page.");

-                            } else {

-                                localforage.setItem("epube.initial-load-done", true).then(function() {

-                                    $(".dl-progress")

-                                        .show()

-                                        .addClass("alert-info")

-                                        .html("Page will reload to activate service worker...");

-

-                                    window.setTimeout(function() {

-                                        window.location.reload();

-                                    }, 3*1000);

-

-                                });

-                            }

-

-                        });

-                    }

-                }

-            });

-        } else {

-            $(".dl-progress")

-                .show()

-                .addClass("alert-danger")

-                .html("Could not communicate with service worker. Try reloading the page.");

-        }

-    },

-	 appCheckOffline: function() {

-	    EpubeApp.setOffline(!navigator.onLine);

-    },

-    initOfflineEvents: function() {

-        if (typeof EpubeApp != "undefined") {

-            $(window).on('online', function() {

-                EpubeApp.setOffline(false);

-            });

-

-            $(window).on('offline', function() {

-                EpubeApp.setOffline(true);

-            });

-

-            EpubeApp.setOffline(!navigator.onLine);

-        }

-    },

-    initNightMode: function() {

-        if (typeof EpubeApp != "undefined") {

-            App.applyNightMode(EpubeApp.isNightMode());

-            return;

-        }

-

-        if (window.matchMedia) {

-            const mql = window.matchMedia('(prefers-color-scheme: dark)');

-

-            mql.addEventListener("change", () => {

-                App.applyNightMode(mql.matches);

-            });

-

-            App.applyNightMode(mql.matches);

-        }

-    },

-    applyNightMode: function(is_night) {

-        console.log("night mode changed to", is_night);

-

-        $("#theme_css").attr("href",

-            "lib/bootstrap/v3/css/" + (is_night ? "theme-dark.min.css" : "bootstrap-theme.min.css"));

-    },

-    Offline: {

-        init: function() {

-            if (typeof EpubeApp != "undefined") {

-                $(".navbar").hide();

-                $(".epube-app-filler").show();

-

-                EpubeApp.setPage("PAGE_OFFLINE");

-            }

-

-            App.initNightMode();

-            App.initOfflineEvents();

-

-            const query = $.urlParam("query");

-

-            if (query)

-                $(".search_query").val(query);

-

-            App.Offline.populateList();

-        },

-        get: function(bookId, callback) {

-            console.log("offline cache: " + bookId);

-

-            $.post("backend.php", {op: "getinfo", id: bookId}, function(data) {

-

-                if (data) {

-                    const cacheId = 'epube-book.' + bookId;

-

-                    localforage.setItem(cacheId, data).then(function(data) {

-

-                        console.log(cacheId + ' got data');

-

-                        const promises = [];

-

-                        promises.push(fetch('backend.php?op=download&id=' + data.epub_id, {credentials: 'same-origin'}).then(function(resp) {

-                            if (resp.status == 200) {

-                                console.log(cacheId + ' got book');

-

-                                callback();

-

-                                localforage.setItem(cacheId + '.book', resp.blob());

-                            }

-                        }));

-

-                        promises.push(fetch("backend.php?op=getpagination&id=" + data.epub_id, {credentials: 'same-origin'}).then(function(resp) {

-                            if (resp.status == 200) {

-                                console.log(cacheId + ' got pagination');

-

-                                resp.text().then(function(text) {

-                                    localforage.setItem(cacheId + '.locations', JSON.parse(text));

-                                });

-                            }

-                        }));

-

-                        promises.push(fetch("backend.php?op=getlastread&id=" + data.epub_id, {credentials: 'same-origin'}).then(function(resp) {

-                            if (resp.status == 200) {

-                                console.log(cacheId + ' got lastread');

-                                resp.text().then(function(text) {

-                                    localforage.setItem(cacheId + '.lastread', JSON.parse(text));

-                                });

-                            }

-                        }));

-

-                        if (data.has_cover) {

-

-                            promises.push(fetch("backend.php?op=cover&id=" + bookId, {credentials: 'same-origin'}).then(function(resp) {

-

-                                if (resp.status == 200) {

-                                    console.log(cacheId + ' got cover');

-                                    localforage.setItem(cacheId + '.cover', resp.blob());

-                                }

-

-                            }));

-

-                        }

-

-                        Promise.all(promises).then(function() {

-                            $(".dl-progress")

-                                .show()

-                                .html("Finished downloading <b>" + data.title + "</b>");

-

-                            window.clearTimeout(App._dl_progress_timeout);

-

-                            App._dl_progress_timeout = window.setTimeout(function() {

-                                $(".dl-progress").fadeOut();

-                            }, 5*1000);

-                        });

-                    });

-                }

-            });

-        },

-        getAll: function() {

-            if (confirm("Download all books on this page?")) {

-

-                $(".row > div").each(function (i, row) {

-                    const bookId = $(row).attr("id").replace("cell-", "");

-                    const dropitem = $(row).find(".offline_dropitem")[0];

-

-                    if (bookId) {

-

-                        const cacheId = 'epube-book.' + bookId;

-                        localforage.getItem(cacheId).then(function(book) {

-

-                            if (!book) {

-                                App.Offline.get(bookId, function() {

-                                    App.Offline.mark(dropitem);

-                                });

-                            }

-

-                        });

-

-                    }

-                });

-            }

-        },

-        markBooks: function() {

-            const elems = $(".offline_dropitem");

-

-            $.each(elems, function (i, elem) {

-                App.Offline.mark(elem);

-            });

-        },

-        mark: function(elem) {

-            const bookId = elem.getAttribute("data-book-id");

-            const cacheId = "epube-book." + bookId;

-

-            localforage.getItem(cacheId).then(function(book) {

-                if (book) {

-                    elem.onclick = function() {

-                        App.Offline.remove(bookId, function() {

-                            App.Offline.mark(elem);

-                        });

-                        return false;

-                    };

-

-                    elem.innerHTML = "Remove offline data";

-

-                } else {

-                    elem.onclick = function() {

-                        App.Offline.get(bookId, function() {

-                            App.Offline.mark(elem);

-                        });

-                        return false;

-                    };

-

-                    elem.innerHTML = "Make available offline";

-                }

-            });

-        },

-

-        removeFromList: function(elem) {

-            const bookId = elem.getAttribute("data-book-id");

-

-            /* global offline_remove */

-            return App.Offline.remove(bookId, function() {

-                $("#cell-" + bookId).remove();

-            });

-        },

-        remove: function(id, callback) {

-            if (confirm("Remove download?")) {

-

-                const cacheId = "epube-book." + id;

-                const promises = [];

-

-                console.log("offline remove: " + id);

-

-                localforage.iterate(function(value, key, i) {

-                    if (key.match(cacheId)) {

-                        promises.push(localforage.removeItem(key));

-                    }

-                });

-

-                Promise.all(promises).then(function() {

-                    window.setTimeout(function() {

-                        callback();

-                    }, 500);

-                });

-            }

-        },

-        search: function() {

-            const query = $(".search_query").val();

-

-            localforage.setItem("epube.search-query", query).then(function() {

-                App.Offline.populateList();

-            });

-

-            return false;

-        },

-        removeAll: function() {

-            if (confirm("Remove all downloaded books?")) {

-

-                const promises = [];

-

-                localforage.iterate(function(value, key/*, i*/) {

-

-                    if (key.match("epube-book")) {

-                        promises.push(localforage.removeItem(key));

-                    }

-                });

-

-                Promise.all(promises).then(function() {

-                    window.setTimeout(function() {

-                        App.Offline.populateList();

-                    }, 500);

-                });

-            }

-        },

-        showSummary: function(elem) {

-            const bookId = elem.getAttribute("data-book-id");

-

-            localforage.getItem("epube-book." + bookId).then(function(data) {

-

-                const comment = data.comment ? data.comment : 'No description available';

-

-                $("#summary-modal .modal-title").html(data.title);

-                $("#summary-modal .book-summary").html(comment);

-

-                $("#summary-modal").modal();

-

-            });

-

-            return false;

-        },

-        populateList: function() {

-            let query = $.urlParam("query");

-

-            if (query) query = query.toLowerCase();

-

-            const books = $("#books_container");

-            books.html("");

-

-            localforage.iterate(function(value, key/*, i*/) {

-                if (key.match(/epube-book\.\d{1,}$/)) {

-

-                    Promise.all([

-                        localforage.getItem(key),

-                        localforage.getItem(key + ".cover"),

-                        localforage.getItem(key + ".lastread"),

-                        localforage.getItem(key + ".book")

-                    ]).then(function(results) {

-

-                        if (results[0] && results[3]) {

-                            const info = results[0];

-

-                            if (query) {

-                                const match =

-                                    (info.series_name && info.series_name.toLowerCase().match(query)) ||

-                                    (info.title && info.title.toLowerCase().match(query)) ||

-                                    (info.author_sort && info.author_sort.toLowerCase().match(query));

-

-                                if (!match) return;

-                            }

-

-

-                            let cover = false;

-

-                            if (results && results[1]) {

-                                cover = URL.createObjectURL(results[1]);

-                            }

-

-                            let in_progress = false;

-                            let is_read = false;

-

-                            const lastread = results[2];

-                            if (lastread) {

-                                in_progress = lastread.page > 0;

-                                is_read = lastread.total > 0 && lastread.total - lastread.page < 5;

-                            }

-

-                            const thumb_class = is_read ? "read" : "";

-                            const title_class = in_progress ? "in_progress" : "";

-

-                            const series_link = info.series_name ? `<div><a class="series_link" href="#">${info.series_name + " [" + info.series_index + "]"}</a></div>` : "";

-

-                            const cell = $(`<div class="col-xxs-6 col-xs-4 col-sm-3 col-md-2" id="cell-${info.id}">

-							<a class="thumbnail ${thumb_class}" href="read.html?id=${info.epub_id}&b=${info.id}">

-								<img style="display : none">

-							</a>

-							<div class="caption">

-								<div><a class="${title_class}" href="read.html?id=${info.epub_id}&b=${info.id}">${info.title}</a></div>

-								<div><a class="author_link" href="#">${info.author_sort}</a></div>

-								${series_link}

-							</div>

-							<div class="dropdown" style="white-space : nowrap">

-								<a href="#" data-toggle="dropdown" role="button">More...<span class="caret"></span></a>

-								<ul class="dropdown-menu">

-									<li><a href="#" data-book-id="${info.id}" onclick="return App.Offline.showSummary(this)">Summary</a></li>

-									<li><a href="#" data-book-id="${info.id}" onclick="App.Offline.removeFromList(this)">Remove offline data</a></li>

-								</ul>

-							</div>

-						</div>`);

-

-                            if (cover) {

-                                cell.find("img")

-                                    .css("background-image", "url(" + cover + ")")

-                                    .fadeIn();

-                            } else {

-                                cell

-                                    .find("img").attr("data-src", 'holder.js/130x190?auto=yes')

-                                    .fadeIn();

-                            }

-

-                            cell.find(".series_link")

-                                .attr("title", info.series_name + " [" + info.series_index  + "]")

-                                .attr("href", "offline.html?query=" + encodeURIComponent(info.series_name));

-

-                            cell.find(".author_link")

-                                .attr("title", info.author_sort)

-                                .attr("href", "offline.html?query=" + encodeURIComponent(info.author_sort));

-

-                            books.append(cell);

-

-                            Holder.run();

-                        }

-                    });

-                }

-            });

-        }

-    },

-};

+'use strict';
+
+/* global localforage, EpubeApp */
+
+$.urlParam = function(name){
+    try {
+        const results = new RegExp('[\?&]' + name + '=([^&#]*)').exec(window.location.href);
+        return decodeURIComponent(results[1].replace(/\+/g, " ")) || 0;
+    } catch (e) {
+        return 0;
+    }
+};
+
+/* exported Cookie */
+const Cookie = {
+    set: function (name, value, lifetime) {
+        const d = new Date();
+        d.setTime(d.getTime() + lifetime * 1000);
+        const expires = "expires=" + d.toUTCString();
+        document.cookie = name + "=" + encodeURIComponent(value) + "; " + expires;
+    },
+    get: function (name) {
+        name = name + "=";
+        const ca = document.cookie.split(';');
+        for (let i=0; i < ca.length; i++) {
+            let c = ca[i];
+            while (c.charAt(0) == ' ') c = c.substring(1);
+            if (c.indexOf(name) == 0) return decodeURIComponent(c.substring(name.length, c.length));
+        }
+        return "";
+    },
+    delete: function(name) {
+        const expires = "expires=Thu, 01-Jan-1970 00:00:01 GMT";
+        document.cookie = name + "=; " + expires;
+    }
+};
+
+const App = {
+    _dl_progress_timeout: false,
+    index_mode: "",
+    last_mtime: -1,
+    init: function() {
+        let refreshed_files = 0;
+
+        if (typeof EpubeApp != "undefined") {
+            $(".navbar").hide();
+            $(".epube-app-filler").show();
+            $(".separate-search").show();
+
+            if ($.urlParam("mode") == "favorites")
+                EpubeApp.setPage("PAGE_FAVORITES");
+            else
+                EpubeApp.setPage("PAGE_LIBRARY");
+        }
+
+        App.initNightMode();
+        App.initOfflineEvents();
+
+        if ('serviceWorker' in navigator) {
+            navigator.serviceWorker.addEventListener('message', function(event) {
+
+                if (event.data == 'refresh-started') {
+                    console.log('cache refresh started');
+                    refreshed_files = 0;
+
+                    $(".dl-progress")
+                        .fadeIn()
+                        .text("Loading, please wait...");
+                }
+
+                if (event.data && event.data.indexOf("refreshed:") == 0) {
+                    ++refreshed_files;
+
+                    $(".dl-progress")
+                        .fadeIn()
+                        .text("Updated " + refreshed_files + " files...");
+                }
+
+                if (event.data == 'client-reload') {
+                    localforage.setItem("epube.cache-timestamp", App.last_mtime);
+                    window.location.reload()
+                }
+
+            });
+        } else {
+            $(".container-main")
+                .addClass("alert alert-danger")
+                .html("Service worker support missing in browser (are you using plain HTTP?).");
+        }
+
+        App.showCovers();
+        App.Offline.markBooks();
+        App.refreshCache();
+
+    },
+    showSummary: function(elem) {
+        const id = elem.getAttribute("data-book-id");
+
+        $.post("backend.php", {op: 'getinfo', id: id}, function(data) {
+
+            const comment = data.comment ? data.comment : 'No description available';
+
+            $("#summary-modal .modal-title").html(data.title);
+            $("#summary-modal .book-summary").html(comment);
+
+            $("#summary-modal").modal();
+
+        });
+
+        return false;
+    },
+    showCovers: function() {
+        $("img[data-book-id]").each((i,e) => {
+            e = $(e);
+
+            if (e.attr('data-cover-link')) {
+                const img = $("<img>")
+                    .on("load", function() {
+                        e.css("background-image", "url(" + e.attr('data-cover-link') + ")")
+                            .fadeIn();
+
+                        img.attr("src", null);
+                    })
+                    .attr("src", e.attr('data-cover-link'));
+            } else {
+                e.attr('src', 'holder.js/130x190?auto=yes').fadeIn();
+            }
+        });
+
+        /* global Holder */
+        Holder.run();
+    },
+    toggleFavorite: function(elem) {
+        const bookId = elem.getAttribute("data-book-id");
+
+        if (elem.getAttribute("data-is-fav") == "0" || confirm("Remove favorite?")) {
+
+            $.post("backend.php", {op: "togglefav", id: bookId}, function(data) {
+                if (data) {
+                    let msg = "[Error]";
+
+                    if (data.status == 0) {
+                        msg = "Add to favorites";
+                    } else if (data.status == 1) {
+                        msg = "Remove from favorites";
+                    }
+
+                    $(elem).html(msg).attr('data-is-fav', data.status);
+
+                    if (App.index_mode == "favorites" && data.status == 0) {
+                        $("#cell-" + bookId).remove();
+                    }
+                }
+            });
+        }
+
+        return false;
+    },
+    refreshCache: function(force) {
+        if ('serviceWorker' in navigator) {
+            localforage.getItem("epube.cache-timestamp").then(function(stamp) {
+                if (force || stamp != App.last_mtime) {
+                    console.log('asking worker to refresh cache');
+
+                    if (navigator.serviceWorker.controller) {
+                        navigator.serviceWorker.controller.postMessage("refresh-cache");
+                    } else {
+                        localforage.getItem("epube.initial-load-done").then(function(done) {
+
+                            console.log("initial load done", done);
+
+                            if (done) {
+                                $(".dl-progress")
+                                    .show()
+                                    .addClass("alert-danger")
+                                    .html("Could not communicate with service worker. Try reloading the page.");
+                            } else {
+                                localforage.setItem("epube.initial-load-done", true).then(function() {
+                                    $(".dl-progress")
+                                        .show()
+                                        .addClass("alert-info")
+                                        .html("Page will reload to activate service worker...");
+
+                                    window.setTimeout(function() {
+                                        window.location.reload();
+                                    }, 3*1000);
+
+                                });
+                            }
+
+                        });
+                    }
+                }
+            });
+        } else {
+            $(".dl-progress")
+                .show()
+                .addClass("alert-danger")
+                .html("Could not communicate with service worker. Try reloading the page.");
+        }
+    },
+    appCheckOffline: function() {
+        EpubeApp.setOffline(!navigator.onLine);
+    },
+    initOfflineEvents: function() {
+        if (typeof EpubeApp != "undefined") {
+            $(window).on('online', function() {
+                EpubeApp.setOffline(false);
+            });
+
+            $(window).on('offline', function() {
+                EpubeApp.setOffline(true);
+            });
+
+            EpubeApp.setOffline(!navigator.onLine);
+        }
+    },
+    initNightMode: function() {
+        if (typeof EpubeApp != "undefined") {
+            App.applyNightMode(EpubeApp.isNightMode());
+            return;
+        }
+
+        if (window.matchMedia) {
+            const mql = window.matchMedia('(prefers-color-scheme: dark)');
+
+            mql.addEventListener("change", () => {
+                App.applyNightMode(mql.matches);
+            });
+
+            App.applyNightMode(mql.matches);
+        }
+    },
+    applyNightMode: function(is_night) {
+        console.log("night mode changed to", is_night);
+
+        $("#theme_css").attr("href",
+            "lib/bootstrap/v3/css/" + (is_night ? "theme-dark.min.css" : "bootstrap-theme.min.css"));
+    },
+    Offline: {
+        init: function() {
+            if (typeof EpubeApp != "undefined") {
+                $(".navbar").hide();
+                $(".epube-app-filler").show();
+
+                EpubeApp.setPage("PAGE_OFFLINE");
+            }
+
+            App.initNightMode();
+            App.initOfflineEvents();
+
+            const query = $.urlParam("query");
+
+            if (query)
+                $(".search_query").val(query);
+
+            App.Offline.populateList();
+        },
+        get: function(bookId, callback) {
+            console.log("offline cache: " + bookId);
+
+            $.post("backend.php", {op: "getinfo", id: bookId}, function(data) {
+
+                if (data) {
+                    const cacheId = 'epube-book.' + bookId;
+
+                    localforage.setItem(cacheId, data).then(function(data) {
+
+                        console.log(cacheId + ' got data');
+
+                        const promises = [];
+
+                        promises.push(fetch('backend.php?op=download&id=' + data.epub_id, {credentials: 'same-origin'}).then(function(resp) {
+                            if (resp.status == 200) {
+                                console.log(cacheId + ' got book');
+
+                                callback();
+
+                                localforage.setItem(cacheId + '.book', resp.blob());
+                            }
+                        }));
+
+                        promises.push(fetch("backend.php?op=getpagination&id=" + data.epub_id, {credentials: 'same-origin'}).then(function(resp) {
+                            if (resp.status == 200) {
+                                console.log(cacheId + ' got pagination');
+
+                                resp.text().then(function(text) {
+                                    localforage.setItem(cacheId + '.locations', JSON.parse(text));
+                                });
+                            }
+                        }));
+
+                        promises.push(fetch("backend.php?op=getlastread&id=" + data.epub_id, {credentials: 'same-origin'}).then(function(resp) {
+                            if (resp.status == 200) {
+                                console.log(cacheId + ' got lastread');
+                                resp.text().then(function(text) {
+                                    localforage.setItem(cacheId + '.lastread', JSON.parse(text));
+                                });
+                            }
+                        }));
+
+                        if (data.has_cover) {
+
+                            promises.push(fetch("backend.php?op=cover&id=" + bookId, {credentials: 'same-origin'}).then(function(resp) {
+
+                                if (resp.status == 200) {
+                                    console.log(cacheId + ' got cover');
+                                    localforage.setItem(cacheId + '.cover', resp.blob());
+                                }
+
+                            }));
+
+                        }
+
+                        Promise.all(promises).then(function() {
+                            $(".dl-progress")
+                                .show()
+                                .html("Finished downloading <b>" + data.title + "</b>");
+
+                            window.clearTimeout(App._dl_progress_timeout);
+
+                            App._dl_progress_timeout = window.setTimeout(function() {
+                                $(".dl-progress").fadeOut();
+                            }, 5*1000);
+                        });
+                    });
+                }
+            });
+        },
+        getAll: function() {
+            if (confirm("Download all books on this page?")) {
+
+                $(".row > div").each(function (i, row) {
+                    const bookId = $(row).attr("id").replace("cell-", "");
+                    const dropitem = $(row).find(".offline_dropitem")[0];
+
+                    if (bookId) {
+
+                        const cacheId = 'epube-book.' + bookId;
+                        localforage.getItem(cacheId).then(function(book) {
+
+                            if (!book) {
+                                App.Offline.get(bookId, function() {
+                                    App.Offline.mark(dropitem);
+                                });
+                            }
+
+                        });
+
+                    }
+                });
+            }
+        },
+        markBooks: function() {
+            const elems = $(".offline_dropitem");
+
+            $.each(elems, function (i, elem) {
+                App.Offline.mark(elem);
+            });
+        },
+        mark: function(elem) {
+            const bookId = elem.getAttribute("data-book-id");
+            const cacheId = "epube-book." + bookId;
+
+            localforage.getItem(cacheId).then(function(book) {
+                if (book) {
+                    elem.onclick = function() {
+                        App.Offline.remove(bookId, function() {
+                            App.Offline.mark(elem);
+                        });
+                        return false;
+                    };
+
+                    elem.innerHTML = "Remove offline data";
+
+                } else {
+                    elem.onclick = function() {
+                        App.Offline.get(bookId, function() {
+                            App.Offline.mark(elem);
+                        });
+                        return false;
+                    };
+
+                    elem.innerHTML = "Make available offline";
+                }
+            });
+        },
+
+        removeFromList: function(elem) {
+            const bookId = elem.getAttribute("data-book-id");
+
+            return App.Offline.remove(bookId, function() {
+                $("#cell-" + bookId).remove();
+            });
+        },
+        remove: function(id, callback) {
+            if (confirm("Remove download?")) {
+
+                const cacheId = "epube-book." + id;
+                const promises = [];
+
+                console.log("offline remove: " + id);
+
+                localforage.iterate(function(value, key /*, i */) {
+                    if (key.match(cacheId)) {
+                        promises.push(localforage.removeItem(key));
+                    }
+                });
+
+                Promise.all(promises).then(function() {
+                    window.setTimeout(function() {
+                        callback();
+                    }, 500);
+                });
+            }
+        },
+        search: function() {
+            const query = $(".search_query").val();
+
+            localforage.setItem("epube.search-query", query).then(function() {
+                App.Offline.populateList();
+            });
+
+            return false;
+        },
+        removeAll: function() {
+            if (confirm("Remove all downloaded books?")) {
+
+                const promises = [];
+
+                localforage.iterate(function(value, key/*, i*/) {
+
+                    if (key.match("epube-book")) {
+                        promises.push(localforage.removeItem(key));
+                    }
+                });
+
+                Promise.all(promises).then(function() {
+                    window.setTimeout(function() {
+                        App.Offline.populateList();
+                    }, 500);
+                });
+            }
+        },
+        showSummary: function(elem) {
+            const bookId = elem.getAttribute("data-book-id");
+
+            localforage.getItem("epube-book." + bookId).then(function(data) {
+
+                const comment = data.comment ? data.comment : 'No description available';
+
+                $("#summary-modal .modal-title").html(data.title);
+                $("#summary-modal .book-summary").html(comment);
+
+                $("#summary-modal").modal();
+
+            });
+
+            return false;
+        },
+        populateList: function() {
+            let query = $.urlParam("query");
+
+            if (query) query = query.toLowerCase();
+
+            const books = $("#books_container");
+            books.html("");
+
+            localforage.iterate(function(value, key/*, i*/) {
+                if (key.match(/epube-book\.\d{1,}$/)) {
+
+                    Promise.all([
+                        localforage.getItem(key),
+                        localforage.getItem(key + ".cover"),
+                        localforage.getItem(key + ".lastread"),
+                        localforage.getItem(key + ".book")
+                    ]).then(function(results) {
+
+                        if (results[0] && results[3]) {
+                            const info = results[0];
+
+                            if (query) {
+                                const match =
+                                    (info.series_name && info.series_name.toLowerCase().match(query)) ||
+                                    (info.title && info.title.toLowerCase().match(query)) ||
+                                    (info.author_sort && info.author_sort.toLowerCase().match(query));
+
+                                if (!match) return;
+                            }
+
+
+                            let cover = false;
+
+                            if (results && results[1]) {
+                                cover = URL.createObjectURL(results[1]);
+                            }
+
+                            let in_progress = false;
+                            let is_read = false;
+
+                            const lastread = results[2];
+                            if (lastread) {
+                                in_progress = lastread.page > 0;
+                                is_read = lastread.total > 0 && lastread.total - lastread.page < 5;
+                            }
+
+                            const thumb_class = is_read ? "read" : "";
+                            const title_class = in_progress ? "in_progress" : "";
+
+                            const series_link = info.series_name ? `<div><a class="series_link" href="#">${info.series_name + " [" + info.series_index + "]"}</a></div>` : "";
+
+                            const cell = $(`<div class="col-xxs-6 col-xs-4 col-sm-3 col-md-2" id="cell-${info.id}">
+							<a class="thumbnail ${thumb_class}" href="read.html?id=${info.epub_id}&b=${info.id}">
+								<img style="display : none">
+							</a>
+							<div class="caption">
+								<div><a class="${title_class}" href="read.html?id=${info.epub_id}&b=${info.id}">${info.title}</a></div>
+								<div><a class="author_link" href="#">${info.author_sort}</a></div>
+								${series_link}
+							</div>
+							<div class="dropdown" style="white-space : nowrap">
+								<a href="#" data-toggle="dropdown" role="button">More...<span class="caret"></span></a>
+								<ul class="dropdown-menu">
+									<li><a href="#" data-book-id="${info.id}" onclick="return App.Offline.showSummary(this)">Summary</a></li>
+									<li><a href="#" data-book-id="${info.id}" onclick="App.Offline.removeFromList(this)">Remove offline data</a></li>
+								</ul>
+							</div>
+						</div>`);
+
+                            if (cover) {
+                                cell.find("img")
+                                    .css("background-image", "url(" + cover + ")")
+                                    .fadeIn();
+                            } else {
+                                cell
+                                    .find("img").attr("data-src", 'holder.js/130x190?auto=yes')
+                                    .fadeIn();
+                            }
+
+                            cell.find(".series_link")
+                                .attr("title", info.series_name + " [" + info.series_index  + "]")
+                                .attr("href", "offline.html?query=" + encodeURIComponent(info.series_name));
+
+                            cell.find(".author_link")
+                                .attr("title", info.author_sort)
+                                .attr("href", "offline.html?query=" + encodeURIComponent(info.author_sort));
+
+                            books.append(cell);
+
+                            Holder.run();
+                        }
+                    });
+                }
+            });
+        }
+    },
+};
diff --git a/js/dict.js b/js/dict.js
index c42a65c..1c802e7 100644
--- a/js/dict.js
+++ b/js/dict.js
@@ -1,7 +1,9 @@
 'use strict';
 
+/* global EpubeApp */
+
 $(document).ready(function() {
-	let Reader = parent.__get_reader();
+	const Reader = parent.__get_reader();
 
 	$(window).on("mouseup touchend", function() {
 		if (!navigator.onLine) return;
diff --git a/js/reader.js b/js/reader.js
index e9b3fc2..1244899 100644
--- a/js/reader.js
+++ b/js/reader.js
@@ -153,6 +153,7 @@ const Reader = {
 			}
 		});
 
+		/* global ePub */
 		const book = ePub();
 		window.book = book;
 
@@ -183,7 +184,7 @@ const Reader = {
 						.show();
 
 					window.setTimeout(function() {
-						show_ui(true);
+						Reader.showUI(true);
 					}, 50);
 				}
 
@@ -421,7 +422,7 @@ const Reader = {
 		});
 
 		/* embedded styles may conflict with our font sizes, etc */
-		book.spine.hooks.content.register(function(doc, section) {
+		book.spine.hooks.content.register(function(doc/*, section */) {
 
 			$(doc).find("p")
 					.filter((i, e) => { if ($(e).text().length >= MIN_LENGTH_TO_JUSTIFY) return e; })
@@ -524,7 +525,9 @@ const Reader = {
 			}, 250);
 		});
 
-		rendition.on("keyup", (e) => { Reader.hotkeyHandler(e) });
+		rendition.on("keyup", (e) => {
+			Reader.hotkeyHandler(e);
+		});
 
 		rendition.on('resized', function() {
 			console.log('resized');
@@ -869,8 +872,8 @@ const Reader = {
 
 			/* eslint-disable prefer-spread */
 			Promise.all(
-				book.spine.spineItems.map(
-					(item) => item.load(book.load.bind(book))
+				window.book.spine.spineItems.map(
+					(item) => item.load(window.book.load.bind(window.book))
 						.then(item.find.bind(item, query))
 						.finally(item.unload.bind(item)))
 			)
@@ -994,10 +997,10 @@ const Reader = {
 				try {
 
 					// this is ridiculous tbh
-					if (item.cfi) book.rendition.display(item.cfi).then(() => {
+					if (item.cfi) window.book.rendition.display(item.cfi).then(() => {
 						$(".loading").hide();
 
-						book.rendition.display(item.cfi);
+						window.book.rendition.display(item.cfi);
 					});
 
 				} catch (e) {
@@ -1016,8 +1019,8 @@ const Reader = {
 									localforage.setItem(Reader.cacheId("lastread"),
 										{cfi: data.cfi, page: data.page, total: data.total});
 
-									book.rendition.display(data.cfi).then(() => {
-										book.rendition.display(data.cfi);
+									window.book.rendition.display(data.cfi).then(() => {
+										window.book.rendition.display(data.cfi);
 									});
 							} catch (e) {
 								console.warn(e);
@@ -1065,6 +1068,7 @@ const Reader = {
 	}
 };
 
+/* exported __get_reader */
 function __get_reader() {
 	return Reader;
 }