initial commit

1 files changed, 398 insertions, 0 deletions

diff --git a/html/options_main.mjs b/html/options_main.mjs
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+++ b/html/options_main.mjs
@@ -0,0 +1,398 @@
+/**
+* Myext HTML options page main script
+*
+* Copyright (C) 2021 Wojtek Kosior
+*
+* Dual-licensed under:
+*   - 0BSD license
+*   - GPLv3 or (at your option) any later version
+*/
+
+"use strict";
+
+import get_storage from '/common/storage_client.mjs';
+import {TYPE_PREFIX, TYPE_NAME, list_prefixes} from '/common/stored_types.mjs';
+
+var storage;
+
+const item_li_template = document.getElementById("item_li_template");
+const component_li_template = document.getElementById("component_li_template");
+const selectable_component_li_template =
+      document.getElementById("selectable_component_li_template");
+/* Make sure they are later cloned without id. */
+item_li_template.removeAttribute("id");
+component_li_template.removeAttribute("id");
+selectable_component_li_template.removeAttribute("id");
+
+function item_li_id(prefix, item)
+{
+    return `li_${prefix}_${item}`;
+}
+
+function add_li(prefix, item, at_the_end=false)
+{
+    let ul = ul_by_prefix[prefix];
+    let li = item_li_template.cloneNode(true);
+    li.id = item_li_id(prefix, item);
+
+    let span = li.firstElementChild;
+    span.textContent = item;
+
+    let edit_button = span.nextElementSibling;
+    edit_button.addEventListener("click", () => edit_item(prefix, item));
+
+    let remove_button = edit_button.nextElementSibling;
+    remove_button.addEventListener("click", () => storage.remove(prefix, item));
+
+    if (!at_the_end) {
+	for (let element of ul.ul.children) {
+	    if (element.id < li.id || element.id.startsWith("work_"))
+		continue;
+
+	    ul.ul.insertBefore(li, element);
+	    return;
+	}
+    }
+
+    ul.ul.appendChild(li);
+}
+
+const selectable_components_ul =
+      document.getElementById("selectable_components_ul");
+
+function selectable_li_id(prefix, item)
+{
+    return `sli_${prefix}_${item}`;
+}
+
+function add_selectable(prefix, name)
+{
+    if (prefix === TYPE_PREFIX.PAGE)
+	return;
+
+    let li = selectable_component_li_template.cloneNode(true);
+    li.id = selectable_li_id(prefix, name);
+    li.setAttribute("data-prefix", prefix);
+    li.setAttribute("data-name", name);
+
+    let chbx = li.firstElementChild;
+    let span = chbx.nextElementSibling;
+
+    span.textContent = `${name} (${TYPE_NAME[prefix]})`;
+
+    selectable_components_ul.appendChild(li);
+}
+
+/*
+ * Used to construct and update components list of edited
+ * bundle as well as edited page.
+ */
+function add_components(ul, components)
+{
+    let components_ul = ul.work_name_input.nextElementSibling;
+
+    for (let component of components) {
+	let [prefix, name] = component;
+	let li = component_li_template.cloneNode(true);
+	li.setAttribute("data-prefix", prefix);
+	li.setAttribute("data-name", name);
+	let span = li.firstElementChild;
+	span.textContent = `${name} (${TYPE_NAME[prefix]})`;
+	let remove_but = span.nextElementSibling;
+	remove_but.addEventListener("click", () =>
+	    components_ul.removeChild(li));
+	components_ul.appendChild(li);
+    }
+
+    components_ul.appendChild(ul.work_empty_component_li);
+}
+
+/* Used to reset edited bundle as well as edited page. */
+function generic_reset_work_li(ul, item, components)
+{
+    if (item === undefined) {
+	item = "";
+	components = [];
+    };
+
+    ul.work_name_input.value = item;
+    let old_components_ul = ul.work_name_input.nextElementSibling;
+    let components_ul = old_components_ul.cloneNode(false);
+
+    ul.work_li.insertBefore(components_ul, old_components_ul);
+    ul.work_li.removeChild(old_components_ul);
+
+    add_components(ul, components);
+}
+
+function reset_work_page_li(ul, item, settings)
+{
+    ul.work_page_allow_chbx.checked = !!settings?.allow;
+    generic_reset_work_li(ul, item, settings?.components);
+}
+
+/* Used to get edited bundle as well as edited page data for saving. */
+function generic_work_li_data(ul)
+{
+    let components_ul = ul.work_name_input.nextElementSibling;
+    let component_li = components_ul.firstElementChild;
+
+    let components = [];
+
+    /* Last list element is empty li with id set. */
+    while (component_li.id === '') {
+	components.push([component_li.getAttribute("data-prefix"),
+			 component_li.getAttribute("data-name")]);
+	component_li = component_li.nextElementSibling;
+    }
+
+    return [ul.work_name_input.value, components];
+}
+
+function work_page_li_data(ul)
+{
+    let [url, components] = generic_work_li_data(ul);
+    let settings = {components, allow : !!ul.work_page_allow_chbx.checked};
+
+    return [url, settings];
+}
+
+const script_url_input = document.getElementById("script_url_field");
+const script_sha256_input = document.getElementById("script_sha256_field");
+const script_contents_field = document.getElementById("script_contents_field");
+
+function maybe_string(maybe_defined)
+{
+    return maybe_defined === undefined ? "" : maybe_defined + "";
+}
+
+function reset_work_script_li(ul, name, data)
+{
+    ul.work_name_input.value = maybe_string(name);
+    script_url_input.value = maybe_string(data?.url);
+    script_sha256_input.value = maybe_string(data?.hash);
+    script_contents_field.value = maybe_string(data?.text);
+}
+
+function work_script_li_data(ul)
+{
+    return [ul.work_name_input.value, {
+	url : script_url_input.value,
+	hash : script_sha256_input.value,
+	text : script_contents_field.value
+    }];
+}
+
+function cancel_work(prefix)
+{
+    let ul = ul_by_prefix[prefix];
+
+    if (ul.state === UL_STATE.IDLE)
+	return;
+
+    if (ul.state === UL_STATE.EDITING_ENTRY) {
+	add_li(prefix, ul.edited_item);
+    }
+
+    ul.work_li.classList.add("hide");
+    ul.state = UL_STATE.IDLE;
+}
+
+function save_work(prefix)
+{
+    let ul = ul_by_prefix[prefix];
+
+    if (ul.state === UL_STATE.IDLE)
+	return;
+
+    let [item, data] = ul.get_work_li_data(ul);
+
+    if (prefix == TYPE_PREFIX.PAGE)
+
+    /* Here we fire promises and return without waiting. */
+
+    if (ul.state === UL_STATE.EDITING_ENTRY)
+	storage.replace(prefix, ul.edited_item, item, data);
+
+    if (ul.state === UL_STATE.ADDING_ENTRY)
+	storage.set(prefix, item, data);
+
+    cancel_work(prefix);
+}
+
+function edit_item(prefix, item)
+{
+    cancel_work(prefix);
+
+    let ul = ul_by_prefix[prefix];
+    let li = document.getElementById(item_li_id(prefix, item));
+    ul.reset_work_li(ul, item, storage.get(prefix, item));
+    ul.ul.insertBefore(ul.work_li, li);
+    ul.ul.removeChild(li);
+    ul.work_li.classList.remove("hide");
+
+    ul.state = UL_STATE.EDITING_ENTRY;
+    ul.edited_item = item;
+}
+
+function add_new_item(prefix)
+{
+    cancel_work(prefix);
+
+    let ul = ul_by_prefix[prefix];
+    ul.reset_work_li(ul);
+    ul.work_li.classList.remove("hide");
+    ul.ul.appendChild(ul.work_li);
+
+    ul.state = UL_STATE.ADDING_ENTRY;
+}
+
+const select_components_window =
+      document.getElementById("select_components_window");
+var select_prefix;
+
+function select_components(prefix)
+{
+    select_prefix = prefix;
+    select_components_window.classList.remove("hide");
+
+    for (let li of selectable_components_ul.children) {
+	let chbx = li.firstElementChild;
+	chbx.checked = false;
+    }
+}
+
+function commit_components()
+{
+    let selected = [];
+
+    for (let li of selectable_components_ul.children) {
+	let chbx = li.firstElementChild;
+	if (!chbx.checked)
+	    continue;
+
+	selected.push([li.getAttribute("data-prefix"),
+		       li.getAttribute("data-name")]);	
+    }
+
+    add_components(ul_by_prefix[select_prefix], selected);
+    cancel_components();
+}
+
+function cancel_components()
+{
+    select_components_window.classList.add("hide");
+}
+
+const UL_STATE = {
+    EDITING_ENTRY : 0,
+    ADDING_ENTRY : 1,
+    IDLE : 2
+};
+
+const ul_by_prefix = {
+    [TYPE_PREFIX.PAGE] : {
+	ul : document.getElementById("pages_ul"),
+	work_li : document.getElementById("work_page_li"),
+	work_name_input : document.getElementById("page_url_field"),
+	work_empty_component_li :
+	document.getElementById("empty_page_component_li"),
+	work_page_allow_chbx : document.getElementById("page_allow_chbx"),
+	reset_work_li : reset_work_page_li,
+	get_work_li_data : work_page_li_data,
+	state : UL_STATE.IDLE,
+	edited_item : undefined,
+    },
+    [TYPE_PREFIX.BUNDLE] : {
+	ul : document.getElementById("bundles_ul"),
+	work_li : document.getElementById("work_bundle_li"),
+	work_name_input : document.getElementById("bundle_name_field"),
+	work_empty_component_li :
+	document.getElementById("empty_bundle_component_li"),
+	reset_work_li : generic_reset_work_li,
+	get_work_li_data : generic_work_li_data,
+	state : UL_STATE.IDLE,
+	edited_item : undefined,
+    },
+    [TYPE_PREFIX.SCRIPT] : {
+	ul : document.getElementById("scripts_ul"),
+	work_li : document.getElementById("work_script_li"),
+	work_name_input : document.getElementById("script_name_field"),
+	reset_work_li : reset_work_script_li,
+	get_work_li_data : work_script_li_data,
+	state : UL_STATE.IDLE,
+	edited_item : undefined,
+    }
+}
+
+async function main()
+{
+    storage = await get_storage();
+
+    for (let prefix of list_prefixes) {
+	for (let item of storage.get_all_names(prefix).sort()) {
+	    add_li(prefix, item, true);
+	    add_selectable(prefix, item);
+	}
+    }
+
+    storage.add_change_listener(handle_change);
+
+    let commit_components_but =
+	document.getElementById("commit_components_but");
+    let cancel_components_but =
+	document.getElementById("cancel_components_but");
+    commit_components_but.addEventListener("click", commit_components);
+    cancel_components_but.addEventListener("click", cancel_components);
+
+    for (let prefix of list_prefixes) {
+	let add_but = document.getElementById(`add_${TYPE_NAME[prefix]}_but`);
+	let discard_but =
+	    document.getElementById(`${TYPE_NAME[prefix]}_discard_but`);
+	let save_but = document.getElementById(`${TYPE_NAME[prefix]}_save_but`);
+	let select_components_but = document.getElementById(
+	    `${TYPE_NAME[prefix]}_select_components_but`
+	);
+
+	add_but.addEventListener("click", () => add_new_item(prefix));
+	discard_but.addEventListener("click", () => cancel_work(prefix));
+	save_but.addEventListener("click", () => save_work(prefix));
+	if (select_components_but === null)
+	    continue;
+
+	select_components_but.addEventListener(
+	    "click",
+	    () => select_components(prefix)
+	);
+    }
+}
+
+function handle_change(change)
+{
+    if (change.old_val === undefined) {
+	add_li(change.prefix, change.item);
+	add_selectable(change.prefix, change.item);
+	return;
+    }
+
+    if (change.new_val !== undefined)
+	return;
+
+    let ul = ul_by_prefix[change.prefix];
+    if (ul.state === UL_STATE.EDITING_ENTRY && ul.edited_item === change.item) {
+	ul.state = UL_STATE.ADDING_ENTRY;
+	return;
+    }
+
+    let li = document.getElementById(item_li_id(change.prefix, change.item));
+    ul.ul.removeChild(li);
+
+    if (change.prefix === TYPE_PREFIX.PAGE)
+	return;
+
+    let sli = document.getElementById(selectable_li_id(change.prefix,
+						       change.item));
+    selectable_components_ul.removeChild(sli);
+}
+
+main();