Update package for new web plugin interface

1 files changed, 0 insertions, 966 deletions

diff --git a/radicale_web/web/fn.js b/radicale_web/web/fn.js
deleted file mode 100644
index 83094e4..0000000
--- a/radicale_web/web/fn.js
+++ /dev/null
@@ -1,966 +0,0 @@
-/**
- * RadicaleWeb web interface for Radicale.
- * Copyright (C) 2017 Unrud <unrud@openaliasbox.org>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-/**
- * Server address (must not end with /)
- * @const
- * @type {string}
- */
-var SERVER = (location.protocol + '//' + location.hostname +
-              (location.port ? ':' + location.port : '') +
-              location.pathname.replace(new RegExp("/+[^/]+/*(/index\.html?)?$"), ""));
-
-/**
- * time between updates of collections.
- * @const
- */
-var UPDATE_INTERVAL = 10000;
-
-/**
- * Regex to match and normalize color
- * @const
- */
-var COLOR_RE = new RegExp("^(#[0-9A-Fa-f]{6})(?:[0-9A-Fa-f]{2})?$");
-
-/**
- * Escape string for usage in XML
- * @param {string} s
- * @return {string}
- */
-function escape_xml(s) {
-    return (s
-            .replace("&", "&amp;")
-            .replace('"', "&quot;")
-            .replace("'", "&apos;")
-            .replace("<", "&lt;")
-            .replace(">", "&gt;"));
-}
-
-/**
- * @enum {string}
- */
-var CollectionType = {
-    PRINCIPAL: "PRINCIPAL",
-    ADDRESSBOOK: "ADDRESSBOOK",
-    CALENDAR_JOURNAL_TASKS: "CALENDAR_JOURNAL_TASKS",
-    CALENDAR_JOURNAL: "CALENDAR_JOURNAL",
-    CALENDAR_TASKS: "CALENDAR_TASKS",
-    JOURNAL_TASKS: "JOURNAL_TASKS",
-    CALENDAR: "CALENDAR",
-    JOURNAL: "JOURNAL",
-    TASKS: "TASKS",
-    is_subset: function(a, b) {
-        var components = a.split("_");
-        var i;
-        for (i = 0; i < components.length; i++) {
-            if (b.search(components[i]) === -1) {
-                return false;
-            }
-        }
-        return true;
-    },
-    union: function(a, b) {
-        if (a.search(this.ADDRESSBOOK) !== -1 || b.search(this.ADDRESSBOOK) !== -1) {
-            if (a && a !== this.ADDRESSBOOK || b && b !== this.ADDRESSBOOK) {
-                throw "Invalid union: " + a + " " + b;
-            }
-            return this.ADDRESSBOOK;
-        }
-        var union = "";
-        if (a.search(this.CALENDAR) !== -1 || b.search(this.CALENDAR) !== -1) {
-            union += (union ? "_" : "") + this.CALENDAR;
-        }
-        if (a.search(this.JOURNAL) !== -1 || b.search(this.JOURNAL) !== -1) {
-            union += (union ? "_" : "") + this.JOURNAL;
-        }
-        if (a.search(this.TASKS) !== -1 || b.search(this.TASKS) !== -1) {
-            union += (union ? "_" : "") + this.TASKS;
-        }
-        return union;
-    }
-}
-
-/**
- * @constructor
- * @struct
- * @param {string} href Must always start and end with /.
- * @param {CollectionType} type
- * @param {string} displayname
- * @param {string} description
- * @param {string} color
- */
-function Collection(href, type, displayname, description, color) {
-    this.href = href;
-    this.type = type;
-    this.displayname = displayname;
-    this.color = color;
-    this.description = description;
-}
-
-/**
- * Find the principal collection.
- * @param {string} user
- * @param {string} password
- * @param {function(?Collection, ?string)} callback Returns result or error
- * @return {XMLHttpRequest}
- */
-function get_principal(user, password, callback) {
-    var request = new XMLHttpRequest();
-    request.open("PROPFIND", SERVER, true, user, password);
-    request.onreadystatechange = function() {
-        if (request.readyState !== 4) {
-            return;
-        }
-        if (request.status === 207) {
-            var xml = request.responseXML;
-            var principal_element = xml.querySelector("*|multistatus:root > *|response:first-of-type > *|propstat > *|prop > *|current-user-principal > *|href");
-            var displayname_element = xml.querySelector("*|multistatus:root > *|response:first-of-type > *|propstat > *|prop > *|displayname");
-            if (principal_element) {
-                callback(new Collection(
-                    principal_element.textContent,
-                    CollectionType.PRINCIPAL,
-                    displayname_element ? displayname_element.textContent : "",
-                    "",
-                    ""), null);
-            } else {
-                callback(null, "Internal error");
-            }
-        } else {
-            callback(null, request.status + " " + request.statusText);
-        }
-    }
-    request.send('<?xml version="1.0" encoding="utf-8" ?>' +
-                 '<propfind xmlns="DAV:">' +
-                     '<prop>' +
-                         '<current-user-principal />' +
-                         '<displayname />' +
-                     '</prop>' +
-                 '</propfind>');
-    return request;
-}
-
-/**
- * Find all calendars and addressbooks in collection.
- * @param {string} user
- * @param {string} password
- * @param {Collection} collection
- * @param {function(?Array<Collection>, ?string)} callback Returns result or error
- * @return {XMLHttpRequest}
- */
-function get_collections(user, password, collection, callback) {
-    var request = new XMLHttpRequest();
-    request.open("PROPFIND", SERVER + collection.href, true, user, password);
-    request.setRequestHeader("depth", "1");
-    request.onreadystatechange = function() {
-        if (request.readyState !== 4) {
-            return;
-        }
-        if (request.status === 207) {
-            var xml = request.responseXML;
-            var collections = [];
-            var response_query = "*|multistatus:root > *|response";
-            var responses = xml.querySelectorAll(response_query);
-            var i;
-            for (i = 0; i < responses.length; i++) {
-                var response = responses[i];
-                var href_element = response.querySelector(response_query + " > *|href");
-                var resourcetype_query = response_query + " > *|propstat > *|prop > *|resourcetype";
-                var resourcetype_element = response.querySelector(resourcetype_query);
-                var displayname_element = response.querySelector(response_query + " > *|propstat > *|prop > *|displayname");
-                var calendarcolor_element = response.querySelector(response_query + " > *|propstat > *|prop > *|calendar-color");
-                var addressbookcolor_element = response.querySelector(response_query + " > *|propstat > *|prop > *|addressbook-color");
-                var calendardesc_element = response.querySelector(response_query + " > *|propstat > *|prop > *|calendar-description");
-                var addressbookdesc_element = response.querySelector(response_query + " > *|propstat > *|prop > *|addressbook-description");
-                var components_query = response_query + " > *|propstat > *|prop > *|supported-calendar-component-set";
-                var components_element = response.querySelector(components_query);
-                var href = href_element ? href_element.textContent : "";
-                var displayname = displayname_element ? displayname_element.textContent : "";
-                var type = "";
-                var color = "";
-                var description = "";
-                if (resourcetype_element) {
-                    if (resourcetype_element.querySelector(resourcetype_query + " > *|addressbook")) {
-                        type = CollectionType.ADDRESSBOOK;
-                        color = addressbookcolor_element ? addressbookcolor_element.textContent : "";
-                        description = addressbookdesc_element ? addressbookdesc_element.textContent : "";
-                    } else if (resourcetype_element.querySelector(resourcetype_query + " > *|calendar")) {
-                        if (components_element) {
-                            if (components_element.querySelector(components_query + " > *|comp[name=VEVENT]")) {
-                                type = CollectionType.union(type, CollectionType.CALENDAR);
-                            }
-                            if (components_element.querySelector(components_query + " > *|comp[name=VJOURNAL]")) {
-                                type = CollectionType.union(type, CollectionType.JOURNAL);
-                            }
-                            if (components_element.querySelector(components_query + " > *|comp[name=VTODO]")) {
-                                type = CollectionType.union(type, CollectionType.TASKS);
-                            }
-                        }
-                        color = calendarcolor_element ? calendarcolor_element.textContent : "";
-                        description = calendardesc_element ? calendardesc_element.textContent : "";
-                    }
-                }
-                // Quirks
-                if (href === (displayname ? "/" + displayname + "/" : "/")) {
-                    displayname = "";
-                }
-                var sane_color = color.trim();
-                if (sane_color) {
-                    var color_match = COLOR_RE.exec(sane_color);
-                    if (color_match) {
-                        sane_color = color_match[1];
-                    } else {
-                        sane_color = "";
-                    }
-                }
-                if (href.substr(-1) === "/" && href !== collection.href && type) {
-                    collections.push(new Collection(href, type, displayname, description, sane_color));
-                }
-            }
-            collections.sort(function(a, b) {
-                /** @type {string} */ var ca = a.displayname || a.href;
-                /** @type {string} */ var cb = b.displayname || b.href;
-                return ca.localeCompare(cb);
-            });
-            callback(collections, null);
-        } else {
-            callback(null, request.status + " " + request.statusText);
-        }
-    };
-    request.send('<?xml version="1.0" encoding="utf-8" ?>' +
-                 '<propfind xmlns="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav" xmlns:CR="urn:ietf:params:xml:ns:carddav" xmlns:I="http://apple.com/ns/ical/" xmlns:INF="http://inf-it.com/ns/ab/">' +
-                     '<prop>' +
-                         '<resourcetype />' +
-                         '<displayname />' +
-                         '<I:calendar-color />' +
-                         '<INF:addressbook-color />' +
-                         '<C:calendar-description />' +
-                         '<C:supported-calendar-component-set />' +
-                         '<CR:addressbook-description />' +
-                     '</prop>' +
-                 '</propfind>');
-    return request;
-}
-
-/**
- * @param {string} user
- * @param {string} password
- * @param {Collection} collection
- * @param {function(?string)} callback Returns error or null
- * @return {XMLHttpRequest}
- */
-function delete_collection(user, password, collection, callback) {
-    var request = new XMLHttpRequest();
-    request.open("DELETE", SERVER + collection.href, true, user, password);
-    request.onreadystatechange = function() {
-        if (request.readyState !== 4) {
-            return;
-        }
-        if (200 <= request.status && request.status < 300) {
-            callback(null);
-        } else {
-            callback(request.status + " " + request.statusText);
-        }
-    };
-    request.send();
-    return request;
-}
-
-/**
- * @param {string} user
- * @param {string} password
- * @param {Collection} collection
- * @param {boolean} create
- * @param {function(?string)} callback Returns error or null
- * @return {XMLHttpRequest}
- */
-function create_edit_collection(user, password, collection, create, callback) {
-    var request = new XMLHttpRequest();
-    request.open(create ? "MKCOL" : "PROPPATCH", SERVER + collection.href, true, user, password);
-    request.onreadystatechange = function() {
-        if (request.readyState !== 4) {
-            return;
-        }
-        if (200 <= request.status && request.status < 300) {
-            callback(null);
-        } else {
-            callback(request.status + " " + request.statusText);
-        }
-    };
-    var displayname = escape_xml(collection.displayname);
-    var calendar_color = "";
-    var addressbook_color = "";
-    var calendar_description = "";
-    var addressbook_description = "";
-    var resourcetype;
-    var components = "";
-    if (collection.type === CollectionType.ADDRESSBOOK) {
-        addressbook_color = escape_xml(collection.color + (collection.color ? "ff" : ""));
-        addressbook_description = escape_xml(collection.description);
-        resourcetype = '<CR:addressbook />';
-    } else {
-        calendar_color = escape_xml(collection.color + (collection.color ? "ff" : ""));
-        calendar_description = escape_xml(collection.description);
-        resourcetype = '<C:calendar />';
-        if (CollectionType.is_subset(CollectionType.CALENDAR, collection.type)) {
-            components += '<C:comp name="VEVENT" />';
-        }
-        if (CollectionType.is_subset(CollectionType.JOURNAL, collection.type)) {
-            components += '<C:comp name="VJOURNAL" />';
-        }
-        if (CollectionType.is_subset(CollectionType.TASKS, collection.type)) {
-            components += '<C:comp name="VTODO" />';
-        }
-    }
-    var xml_request = create ? "mkcol" : "propertyupdate";
-    request.send('<?xml version="1.0" encoding="UTF-8" ?>' +
-                 '<' + xml_request + ' xmlns="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav" xmlns:CR="urn:ietf:params:xml:ns:carddav" xmlns:I="http://apple.com/ns/ical/" xmlns:INF="http://inf-it.com/ns/ab/">' +
-                     '<set>' +
-                         '<prop>' +
-                             (create ? '<resourcetype><collection />' + resourcetype + '</resourcetype>' : '') +
-                             '<C:supported-calendar-component-set>' + components + '</C:supported-calendar-component-set>' +
-                             '<displayname>' + displayname + '</displayname>' +
-                             '<I:calendar-color>' + calendar_color + '</I:calendar-color>' +
-                             '<INF:addressbook-color>' + addressbook_color + '</INF:addressbook-color>' +
-                             '<CR:addressbook-description>' + addressbook_description + '</CR:addressbook-description>' +
-                             '<C:calendar-description>' + calendar_description + '</C:calendar-description>' +
-                         '</prop>' +
-                     '</set>' +
-                 '</' + xml_request + '>');
-    return request;
-}
-
-/**
- * @param {string} user
- * @param {string} password
- * @param {Collection} collection
- * @param {function(?string)} callback Returns error or null
- * @return {XMLHttpRequest}
- */
-function create_collection(user, password, collection, callback) {
-    return create_edit_collection(user, password, collection, true, callback);
-}
-
-/**
- * @param {string} user
- * @param {string} password
- * @param {Collection} collection
- * @param {function(?string)} callback Returns error or null
- * @return {XMLHttpRequest}
- */
-function edit_collection(user, password, collection, callback) {
-    return create_edit_collection(user, password, collection, false, callback);
-}
-
-/**
- * @interface
- */
-function Scene() {}
-/**
- * Scene is on top of stack and visible.
- */
-Scene.prototype.show = function() {};
-/**
- * Scene is no longer visible.
- */
-Scene.prototype.hide = function() {};
-/**
- * Scene is removed from scene stack.
- */
-Scene.prototype.release = function() {};
-
-
-/**
- * @type {Array<Scene>}
- */
-var scene_stack = [];
-
-/**
- * Push scene onto stack.
- * @param {Scene} scene
- * @param {boolean} replace Replace the scene on top of the stack.
- */
-function push_scene(scene, replace) {
-    if (scene_stack.length >= 1) {
-        scene_stack[scene_stack.length - 1].hide();
-        if (replace) {
-            scene_stack.pop().release();
-        }
-    }
-    scene_stack.push(scene);
-    scene.show();
-}
-
-/**
- * Remove scenes from stack.
- * @param {number} index New top of stack
- */
-function pop_scene(index) {
-    if (scene_stack.length - 1 <= index) {
-        return;
-    }
-    scene_stack[scene_stack.length - 1].hide();
-    while (scene_stack.length - 1 > index) {
-        var old_length = scene_stack.length;
-        scene_stack.pop().release();
-        if (old_length - 1 === index + 1) {
-            break;
-        }
-    }
-    if (scene_stack.length >= 1) {
-        var scene = scene_stack[scene_stack.length - 1];
-        scene.show();
-    } else {
-        throw "Scene stack is empty";
-    }
-}
-
-/**
- * @constructor
- * @implements {Scene}
- */
-function LoginScene() {
-    var othis = this;
-    var html_scene = document.getElementById("loginscene");
-    var form = html_scene.querySelector("[name=form]");
-    var user_form = html_scene.querySelector("[name=user]");
-    var password_form = html_scene.querySelector("[name=password]");
-    var error_form = html_scene.querySelector("[name=error]");
-    var logout_view = document.getElementById("logoutview");
-    var logout_user_form = logout_view.querySelector("[name=user]");
-    var logout_btn = logout_view.querySelector("[name=link]");
-
-    /** @type {?number} */ var scene_index = null;
-    var user = "";
-    var error = "";
-    /** @type {?XMLHttpRequest} */ var principal_req = null;
-
-    function read_form() {
-        user = user_form.value;
-    }
-
-    function fill_form() {
-        user_form.value = user;
-        password_form.value = "";
-        error_form.textContent = error ? "Error: " + error : "";
-    }
-
-    function onlogin() {
-        try {
-            read_form();
-            var password = password_form.value;
-            if (user) {
-                error = "";
-                // setup logout
-                logout_view.style.display = "block";
-                logout_btn.onclick = onlogout;
-                logout_user_form.textContent = user;
-                // Fetch principal
-                var loading_scene = new LoadingScene();
-                push_scene(loading_scene, false);
-                principal_req = get_principal(user, password, function(collection, error1) {
-                    if (scene_index === null) {
-                        return;
-                    }
-                    principal_req = null;
-                    if (error1) {
-                        error = error1;
-                        pop_scene(scene_index);
-                    } else {
-                        // show collections
-                        var saved_user = user;
-                        user = "";
-                        var collections_scene = new CollectionsScene(
-                            saved_user, password, collection, function(error1) {
-                                error = error1;
-                                user = saved_user;
-                            });
-                        push_scene(collections_scene, true);
-                    }
-                });
-            } else {
-                error = "Username is empty";
-                fill_form();
-            }
-        } catch(err) {
-            console.error(err);
-        }
-        return false;
-    }
-
-    function onlogout() {
-        try {
-            if (scene_index === null) {
-                return false;
-            }
-            user = "";
-            pop_scene(scene_index);
-        } catch (err) {
-            console.error(err);
-        }
-        return false;
-    }
-
-    this.show = function() {
-        this.release();
-        fill_form();
-        form.onsubmit = onlogin;
-        html_scene.style.display = "block";
-        user_form.focus();
-        scene_index = scene_stack.length - 1;
-    };
-    this.hide = function() {
-        read_form();
-        html_scene.style.display = "none";
-        form.onsubmit = null;
-    };
-    this.release = function() {
-        scene_index = null;
-        // cancel pending requests
-        if (principal_req !== null) {
-            principal_req.abort();
-            principal_req = null;
-        }
-        // remove logout
-        logout_view.style.display = "none";
-        logout_btn.onclick = null;
-        logout_user_form.textContent = "";
-    };
-}
-
-/**
- * @constructor
- * @implements {Scene}
- */
-function LoadingScene() {
-    var html_scene = document.getElementById("loadingscene");
-    this.show = function() {
-        html_scene.style.display = "block";
-    };
-    this.hide = function() {
-        html_scene.style.display = "none";
-    };
-    this.release = function() {};
-}
-
-/**
- * @constructor
- * @implements {Scene}
- * @param {string} user
- * @param {string} password
- * @param {Collection} collection The principal collection.
- * @param {function(string)} onerror Called when an error occurs, before the
- *                                   scene is popped.
- */
-function CollectionsScene(user, password, collection, onerror) {
-    var othis = this;
-    var html_scene = document.getElementById("collectionsscene");
-    var template = html_scene.querySelector("[name=collectiontemplate]");
-    var new_btn = html_scene.querySelector("[name=new]");
-
-    /** @type {?number} */ var scene_index = null;
-    var saved_template_display = null;
-    /** @type {?XMLHttpRequest} */ var collections_req = null;
-    var timer = null;
-    /** @type {?Array<Collection>} */ var collections = null;
-    /** @type {Array<Node>} */ nodes = [];
-
-    function onnew() {
-        try {
-            var create_collection_scene = new CreateEditCollectionScene(user, password, collection);
-            push_scene(create_collection_scene, false);
-        } catch(err) {
-            console.error(err);
-        }
-        return false;
-    }
-
-    function onedit(collection) {
-        try {
-            var edit_collection_scene = new CreateEditCollectionScene(user, password, collection);
-            push_scene(edit_collection_scene, false);
-        } catch(err) {
-            console.error(err);
-        }
-        return false;
-    }
-
-    function ondelete(collection) {
-        try {
-            var delete_collection_scene = new DeleteCollectionScene(user, password, collection);
-            push_scene(delete_collection_scene, false);
-        } catch(err) {
-            console.error(err);
-        }
-        return false;
-    }
-
-    function show_collections(collections) {
-        nodes.forEach(function(node) {
-            template.parentNode.removeChild(node);
-        });
-        nodes = [];
-        collections.forEach(function (collection) {
-            var node = template.cloneNode(true);
-            var title_form = node.querySelector("[name=title]");
-            var description_form = node.querySelector("[name=description]");
-            var url_form = node.querySelector("[name=url]");
-            var color_form = node.querySelector("[name=color]");
-            var delete_btn = node.querySelector("[name=delete]");
-            var edit_btn = node.querySelector("[name=edit]");
-            if (collection.color) {
-                color_form.style.color = collection.color;
-            } else {
-                color_form.style.display = "none";
-            }
-            var possible_types = [CollectionType.ADDRESSBOOK];
-            [CollectionType.CALENDAR, ""].forEach(function(e) {
-                [CollectionType.union(e, CollectionType.JOURNAL), e].forEach(function(e) {
-                    [CollectionType.union(e, CollectionType.TASKS), e].forEach(function(e) {
-                        if (e) {
-                            possible_types.push(e);
-                        }
-                    });
-                });
-            });
-            possible_types.forEach(function(e) {
-                if (e !== collection.type) {
-                    node.querySelector("[name=" + e + "]").style.display = "none";
-                }
-            });
-            title_form.textContent = collection.displayname || collection.href;
-            description_form.textContent = collection.description;
-            href = SERVER.replace("//", "//" + user + "@") + collection.href;
-            url_form.href = href;
-            url_form.textContent = href;
-            delete_btn.onclick = function(ev) {return ondelete(collection);};
-            edit_btn.onclick = function(ev) {return onedit(collection);};
-            node.style.display = saved_template_display;
-            nodes.push(node);
-            template.parentNode.insertBefore(node, template);
-        });
-    }
-
-    function update() {
-        if (collections === null) {
-            var loading_scene = new LoadingScene();
-            push_scene(loading_scene, false);
-        }
-        collections_req = get_collections(user, password, collection, function(collections1, error) {
-            if (scene_index === null) {
-                return;
-            }
-            collections_req = null;
-            if (error) {
-                onerror(error);
-                pop_scene(scene_index - 1)
-            } else {
-                var old_collections = collections;
-                collections = collections1;
-                timer = window.setTimeout(update, UPDATE_INTERVAL);
-                if (old_collections === null) {
-                    pop_scene(scene_index);
-                } else {
-                    show_collections(collections);
-                }
-            }
-        });
-    }
-
-    this.show = function() {
-        saved_template_display = template.style.display;
-        template.style.display = "none";
-        html_scene.style.display = "block";
-        new_btn.onclick = onnew;
-        if (scene_index === null) {
-            scene_index = scene_stack.length - 1;
-            if (collections === null && collections_req !== null) {
-                pop_scene(scene_index - 1);
-                return;
-            }
-            update();
-        } else if (collections === null) {
-            pop_scene(scene_index - 1);
-        } else {
-            if (timer !== null) {
-                show_collections(collections);
-            } else {
-                collections = null;
-                update();
-            }
-        }
-    };
-    this.hide = function() {
-        html_scene.style.display = "none";
-        template.style.display = saved_template_display;
-        new_btn.onclick = null;
-        if (timer !== null) {
-            window.clearTimeout(timer);
-            timer = null;
-        }
-        if (collections !== null && collections_req !== null) {
-            collections_req.abort();
-            collections_req = null;
-        }
-        show_collections([]);
-    };
-    this.release = function() {
-        scene_index = null;
-        if (collections_req !== null) {
-            collections_req.abort();
-            collections_req = null;
-        }
-    };
-}
-
-/**
- * @constructor
- * @implements {Scene}
- * @param {string} user
- * @param {string} password
- * @param {Collection} collection
- */
-function DeleteCollectionScene(user, password, collection) {
-    var html_scene = document.getElementById("deletecollectionscene");
-    var title_form = html_scene.querySelector("[name=title]");
-    var error_form = html_scene.querySelector("[name=error]");
-    var delete_btn = html_scene.querySelector("[name=delete]");
-    var cancel_btn = html_scene.querySelector("[name=cancel]");
-    var no_btn = html_scene.querySelector("[name=no]");
-
-    /** @type {?number} */ var scene_index = null;
-    /** @type {?XMLHttpRequest} */ var delete_req = null;
-    var error = "";
-
-    function ondelete() {
-        try {
-            var loading_scene = new LoadingScene();
-            push_scene(loading_scene);
-            delete_req = delete_collection(user, password, collection, function(error1) {
-                if (scene_index === null) {
-                    return;
-                }
-                delete_req = null;
-                if (error1) {
-                    error = error1;
-                    pop_scene(scene_index);
-                } else {
-                    pop_scene(scene_index - 1);
-                }
-            });
-        } catch(err) {
-            console.error(err);
-        }
-        return false;
-    }
-
-    function oncancel() {
-        try {
-            pop_scene(scene_index - 1);
-        } catch(err) {
-            console.error(err);
-        }
-        return false;
-    }
-
-    this.show = function() {
-        this.release();
-        scene_index = scene_stack.length - 1;
-        html_scene.style.display = "block";
-        title_form.textContent = collection.displayname || collection.href;
-        error_form.textContent = error ? "Error: " + error : "";
-        delete_btn.onclick = ondelete;
-        cancel_btn.onclick = oncancel;
-    };
-    this.hide = function() {
-        html_scene.style.display = "none";
-        cancel_btn.onclick = null;
-        delete_btn.onclick = null;
-    };
-    this.release = function() {
-        scene_index = null;
-        if (delete_req !== null) {
-            delete_req.abort();
-            delete_req = null;
-        }
-    };
-}
-
-/**
- * Generate random hex number.
- * @param {number} length
- * @return {string}
- */
-function randHex(length) {
-    var s = Math.floor(Math.random() * Math.pow(16, length)).toString(16);
-    while (s.length < length) {
-        s = "0" + s;
-    }
-    return s;
-}
-
-/**
- * @constructor
- * @implements {Scene}
- * @param {string} user
- * @param {string} password
- * @param {Collection} collection if it's a principal collection, a new
- *                                collection will be created inside of it.
- *                                Otherwise the collection will be edited.
- */
-function CreateEditCollectionScene(user, password, collection) {
-    var edit = collection.type !== CollectionType.PRINCIPAL;
-    var html_scene = document.getElementById(edit ? "editcollectionscene" : "createcollectionscene");
-    var title_form = edit ? html_scene.querySelector("[name=title]") : null;
-    var error_form = html_scene.querySelector("[name=error]");
-    var displayname_form = html_scene.querySelector("[name=displayname]");
-    var description_form = html_scene.querySelector("[name=description]");
-    var type_form = html_scene.querySelector("[name=type]");
-    var color_form = html_scene.querySelector("[name=color]");
-    var submit_btn = html_scene.querySelector("[name=submit]");
-    var cancel_btn = html_scene.querySelector("[name=cancel]");
-
-    /** @type {?number} */ var scene_index = null;
-    /** @type {?XMLHttpRequest} */ var create_edit_req = null;
-    var error = "";
-    /** @type {?Element} */ var saved_type_form = null;
-
-    var href = edit ? collection.href : (
-        collection.href + randHex(8) + "-" + randHex(4) + "-" + randHex(4) +
-        "-" + randHex(4) + "-" + randHex(12) + "/");
-    var displayname = edit ? collection.displayname : "";
-    var description = edit ? collection.description : "";
-    var type = edit ? collection.type : CollectionType.CALENDAR_JOURNAL_TASKS;
-    var color = edit && collection.color ? collection.color : "#" + randHex(6);
-
-    function remove_invalid_types() {
-        if (!edit) {
-            return;
-        }
-        /** @type {HTMLOptionsCollection} */ var options = type_form.options;
-        // remove all options that are not supersets
-        var i;
-        for (i = options.length - 1; i >= 0; i--) {
-            if (!CollectionType.is_subset(type, options[i].value)) {
-                options.remove(i);
-            }
-        }
-    }
-
-    function read_form() {
-        displayname = displayname_form.value;
-        description = description_form.value;
-        type = type_form.value;
-        color = color_form.value;
-    }
-
-    function fill_form() {
-        displayname_form.value = displayname;
-        description_form.value = description;
-        type_form.value = type;
-        color_form.value = color;
-        error_form.textContent = error ? "Error: " + error : "";
-    }
-
-    function onsubmit() {
-        try {
-            read_form();
-            var sane_color = color.trim();
-            if (sane_color) {
-                var color_match = COLOR_RE.exec(sane_color);
-                if (!color_match) {
-                    error = "Invalid color";
-                    fill_form();
-                    return false;
-                }
-                sane_color = color_match[1];
-            }
-            var loading_scene = new LoadingScene();
-            push_scene(loading_scene);
-            var collection = new Collection(href, type, displayname, description, sane_color);
-            var callback = function(error1) {
-                if (scene_index === null) {
-                    return;
-                }
-                create_edit_req = null;
-                if (error1) {
-                    error = error1;
-                    pop_scene(scene_index);
-                } else {
-                    pop_scene(scene_index - 1);
-                }
-            };
-            if (edit) {
-                create_edit_req = edit_collection(user, password, collection, callback);
-            } else {
-                create_edit_req = create_collection(user, password, collection, callback);
-            }
-        } catch(err) {
-            console.error(err);
-        }
-        return false;
-    }
-
-    function oncancel() {
-        try {
-            pop_scene(scene_index - 1);
-        } catch(err) {
-            console.error(err);
-        }
-        return false;
-    }
-
-    this.show = function() {
-        this.release();
-        scene_index = scene_stack.length - 1;
-        // Clone type_form because it's impossible to hide options without removing them
-        saved_type_form = type_form;
-        type_form = type_form.cloneNode(true);
-        saved_type_form.parentNode.replaceChild(type_form, saved_type_form);
-        remove_invalid_types();
-        html_scene.style.display = "block";
-        if (edit) {
-            title_form.textContent = collection.displayname || collection.href;
-        }
-        fill_form();
-        submit_btn.onclick = onsubmit;
-        cancel_btn.onclick = oncancel;
-    };
-    this.hide = function() {
-        read_form();
-        html_scene.style.display = "none";
-        // restore type_form
-        type_form.parentNode.replaceChild(saved_type_form, type_form);
-        type_form = saved_type_form;
-        saved_type_form = null;
-        submit_btn.onclick = null;
-        cancel_btn.onclick = null;
-    };
-    this.release = function() {
-        scene_index = null;
-        if (create_edit_req !== null) {
-            create_edit_req.abort();
-            create_edit_req = null;
-        }
-    };
-}
-
-function main() {
-    push_scene(new LoginScene(), false);
-}
-
-window.addEventListener("load", main);