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-rw-r--r--application/basilisk/components/webextensions/ext-browserAction.js531
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diff --git a/application/basilisk/components/webextensions/ext-browserAction.js b/application/basilisk/components/webextensions/ext-browserAction.js
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+++ b/application/basilisk/components/webextensions/ext-browserAction.js
@@ -0,0 +1,531 @@
+/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set sts=2 sw=2 et tw=80: */
+"use strict";
+
+XPCOMUtils.defineLazyModuleGetter(this, "CustomizableUI",
+ "resource:///modules/CustomizableUI.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "clearTimeout",
+ "resource://gre/modules/Timer.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "setTimeout",
+ "resource://gre/modules/Timer.jsm");
+
+XPCOMUtils.defineLazyServiceGetter(this, "DOMUtils",
+ "@mozilla.org/inspector/dom-utils;1",
+ "inIDOMUtils");
+
+Cu.import("resource://devtools/shared/event-emitter.js");
+Cu.import("resource://gre/modules/ExtensionUtils.jsm");
+Cu.import("resource://gre/modules/Task.jsm");
+
+var {
+ EventManager,
+ IconDetails,
+} = ExtensionUtils;
+
+const POPUP_PRELOAD_TIMEOUT_MS = 200;
+
+const XUL_NS = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
+
+function isAncestorOrSelf(target, node) {
+ for (; node; node = node.parentNode) {
+ if (node === target) {
+ return true;
+ }
+ }
+ return false;
+}
+
+// WeakMap[Extension -> BrowserAction]
+var browserActionMap = new WeakMap();
+
+// Responsible for the browser_action section of the manifest as well
+// as the associated popup.
+function BrowserAction(options, extension) {
+ this.extension = extension;
+
+ let widgetId = makeWidgetId(extension.id);
+ this.id = `${widgetId}-browser-action`;
+ this.viewId = `PanelUI-webext-${widgetId}-browser-action-view`;
+ this.widget = null;
+
+ this.pendingPopup = null;
+ this.pendingPopupTimeout = null;
+
+ this.tabManager = TabManager.for(extension);
+
+ this.defaults = {
+ enabled: true,
+ title: options.default_title || extension.name,
+ badgeText: "",
+ badgeBackgroundColor: null,
+ icon: IconDetails.normalize({path: options.default_icon}, extension),
+ popup: options.default_popup || "",
+ };
+
+ this.browserStyle = options.browser_style || false;
+ if (options.browser_style === null) {
+ this.extension.logger.warn("Please specify whether you want browser_style " +
+ "or not in your browser_action options.");
+ }
+
+ this.tabContext = new TabContext(tab => Object.create(this.defaults),
+ extension);
+
+ EventEmitter.decorate(this);
+}
+
+BrowserAction.prototype = {
+ build() {
+ let widget = CustomizableUI.createWidget({
+ id: this.id,
+ viewId: this.viewId,
+ type: "view",
+ removable: true,
+ label: this.defaults.title || this.extension.name,
+ tooltiptext: this.defaults.title || "",
+ defaultArea: CustomizableUI.AREA_NAVBAR,
+
+ onBeforeCreated: document => {
+ let view = document.createElementNS(XUL_NS, "panelview");
+ view.id = this.viewId;
+ view.setAttribute("flex", "1");
+
+ document.getElementById("PanelUI-multiView").appendChild(view);
+ },
+
+ onDestroyed: document => {
+ let view = document.getElementById(this.viewId);
+ if (view) {
+ this.clearPopup();
+ CustomizableUI.hidePanelForNode(view);
+ view.remove();
+ }
+ },
+
+ onCreated: node => {
+ node.classList.add("badged-button");
+ node.classList.add("webextension-browser-action");
+ node.setAttribute("constrain-size", "true");
+
+ node.onmousedown = event => this.handleEvent(event);
+
+ this.updateButton(node, this.defaults);
+ },
+
+ onViewShowing: event => {
+ let document = event.target.ownerDocument;
+ let tabbrowser = document.defaultView.gBrowser;
+
+ let tab = tabbrowser.selectedTab;
+ let popupURL = this.getProperty(tab, "popup");
+ this.tabManager.addActiveTabPermission(tab);
+
+ // Popups are shown only if a popup URL is defined; otherwise
+ // a "click" event is dispatched. This is done for compatibility with the
+ // Google Chrome onClicked extension API.
+ if (popupURL) {
+ try {
+ let popup = this.getPopup(document.defaultView, popupURL);
+ event.detail.addBlocker(popup.attach(event.target));
+ } catch (e) {
+ Cu.reportError(e);
+ event.preventDefault();
+ }
+ } else {
+ // This isn't not a hack, but it seems to provide the correct behavior
+ // with the fewest complications.
+ event.preventDefault();
+ this.emit("click");
+ }
+ },
+ });
+
+ this.tabContext.on("tab-select", // eslint-disable-line mozilla/balanced-listeners
+ (evt, tab) => { this.updateWindow(tab.ownerGlobal); });
+
+ this.widget = widget;
+ },
+
+ /**
+ * Triggers this browser action for the given window, with the same effects as
+ * if it were clicked by a user.
+ *
+ * This has no effect if the browser action is disabled for, or not
+ * present in, the given window.
+ */
+ triggerAction: Task.async(function* (window) {
+ let popup = ViewPopup.for(this.extension, window);
+ if (popup) {
+ popup.closePopup();
+ return;
+ }
+
+ let widget = this.widget.forWindow(window);
+ let tab = window.gBrowser.selectedTab;
+
+ if (!widget || !this.getProperty(tab, "enabled")) {
+ return;
+ }
+
+ // Popups are shown only if a popup URL is defined; otherwise
+ // a "click" event is dispatched. This is done for compatibility with the
+ // Google Chrome onClicked extension API.
+ if (this.getProperty(tab, "popup")) {
+ if (this.widget.areaType == CustomizableUI.TYPE_MENU_PANEL) {
+ yield window.PanelUI.show();
+ }
+
+ let event = new window.CustomEvent("command", {bubbles: true, cancelable: true});
+ widget.node.dispatchEvent(event);
+ } else {
+ this.emit("click");
+ }
+ }),
+
+ handleEvent(event) {
+ let button = event.target;
+ let window = button.ownerDocument.defaultView;
+
+ switch (event.type) {
+ case "mousedown":
+ if (event.button == 0) {
+ // Begin pre-loading the browser for the popup, so it's more likely to
+ // be ready by the time we get a complete click.
+ let tab = window.gBrowser.selectedTab;
+ let popupURL = this.getProperty(tab, "popup");
+ let enabled = this.getProperty(tab, "enabled");
+
+ if (popupURL && enabled) {
+ // Add permission for the active tab so it will exist for the popup.
+ // Store the tab to revoke the permission during clearPopup.
+ if (!this.pendingPopup && !this.tabManager.hasActiveTabPermission(tab)) {
+ this.tabManager.addActiveTabPermission(tab);
+ this.tabToRevokeDuringClearPopup = tab;
+ }
+
+ this.pendingPopup = this.getPopup(window, popupURL);
+ window.addEventListener("mouseup", this, true);
+ } else {
+ this.clearPopup();
+ }
+ }
+ break;
+
+ case "mouseup":
+ if (event.button == 0) {
+ this.clearPopupTimeout();
+ // If we have a pending pre-loaded popup, cancel it after we've waited
+ // long enough that we can be relatively certain it won't be opening.
+ if (this.pendingPopup) {
+ let {node} = this.widget.forWindow(window);
+ if (isAncestorOrSelf(node, event.originalTarget)) {
+ this.pendingPopupTimeout = setTimeout(() => this.clearPopup(),
+ POPUP_PRELOAD_TIMEOUT_MS);
+ } else {
+ this.clearPopup();
+ }
+ }
+ }
+ break;
+ }
+ },
+
+ /**
+ * Returns a potentially pre-loaded popup for the given URL in the given
+ * window. If a matching pre-load popup already exists, returns that.
+ * Otherwise, initializes a new one.
+ *
+ * If a pre-load popup exists which does not match, it is destroyed before a
+ * new one is created.
+ *
+ * @param {Window} window
+ * The browser window in which to create the popup.
+ * @param {string} popupURL
+ * The URL to load into the popup.
+ * @returns {ViewPopup}
+ */
+ getPopup(window, popupURL) {
+ this.clearPopupTimeout();
+ let {pendingPopup} = this;
+ this.pendingPopup = null;
+
+ if (pendingPopup) {
+ if (pendingPopup.window === window && pendingPopup.popupURL === popupURL) {
+ return pendingPopup;
+ }
+ pendingPopup.destroy();
+ }
+
+ let fixedWidth = this.widget.areaType == CustomizableUI.TYPE_MENU_PANEL;
+ return new ViewPopup(this.extension, window, popupURL, this.browserStyle, fixedWidth);
+ },
+
+ /**
+ * Clears any pending pre-loaded popup and related timeouts.
+ */
+ clearPopup() {
+ this.clearPopupTimeout();
+ if (this.pendingPopup) {
+ if (this.tabToRevokeDuringClearPopup) {
+ this.tabManager.revokeActiveTabPermission(this.tabToRevokeDuringClearPopup);
+ this.tabToRevokeDuringClearPopup = null;
+ }
+ this.pendingPopup.destroy();
+ this.pendingPopup = null;
+ }
+ },
+
+ /**
+ * Clears any pending timeouts to clear stale, pre-loaded popups.
+ */
+ clearPopupTimeout() {
+ if (this.pendingPopup) {
+ this.pendingPopup.window.removeEventListener("mouseup", this, true);
+ }
+
+ if (this.pendingPopupTimeout) {
+ clearTimeout(this.pendingPopupTimeout);
+ this.pendingPopupTimeout = null;
+ }
+ },
+
+ // Update the toolbar button |node| with the tab context data
+ // in |tabData|.
+ updateButton(node, tabData) {
+ let title = tabData.title || this.extension.name;
+ node.setAttribute("tooltiptext", title);
+ node.setAttribute("label", title);
+
+ if (tabData.badgeText) {
+ node.setAttribute("badge", tabData.badgeText);
+ } else {
+ node.removeAttribute("badge");
+ }
+
+ if (tabData.enabled) {
+ node.removeAttribute("disabled");
+ } else {
+ node.setAttribute("disabled", "true");
+ }
+
+ let badgeNode = node.ownerDocument.getAnonymousElementByAttribute(node,
+ "class", "toolbarbutton-badge");
+ if (badgeNode) {
+ let color = tabData.badgeBackgroundColor;
+ if (color) {
+ color = `rgba(${color[0]}, ${color[1]}, ${color[2]}, ${color[3] / 255})`;
+ }
+ badgeNode.style.backgroundColor = color || "";
+ }
+
+ const LEGACY_CLASS = "toolbarbutton-legacy-addon";
+ node.classList.remove(LEGACY_CLASS);
+
+ let baseSize = 16;
+ let {icon, size} = IconDetails.getPreferredIcon(tabData.icon, this.extension, baseSize);
+
+ // If the best available icon size is not divisible by 16, check if we have
+ // an 18px icon to fall back to, and trim off the padding instead.
+ if (size % 16 && !icon.endsWith(".svg")) {
+ let result = IconDetails.getPreferredIcon(tabData.icon, this.extension, 18);
+
+ if (result.size % 18 == 0) {
+ baseSize = 18;
+ icon = result.icon;
+ node.classList.add(LEGACY_CLASS);
+ }
+ }
+
+ // These URLs should already be properly escaped, but make doubly sure CSS
+ // string escape characters are escaped here, since they could lead to a
+ // sandbox break.
+ let escape = str => str.replace(/[\\\s"]/g, encodeURIComponent);
+
+ let getIcon = size => escape(IconDetails.getPreferredIcon(tabData.icon, this.extension, size).icon);
+
+ node.setAttribute("style", `
+ --webextension-menupanel-image: url("${getIcon(32)}");
+ --webextension-menupanel-image-2x: url("${getIcon(64)}");
+ --webextension-toolbar-image: url("${escape(icon)}");
+ --webextension-toolbar-image-2x: url("${getIcon(baseSize * 2)}");
+ `);
+ },
+
+ // Update the toolbar button for a given window.
+ updateWindow(window) {
+ let widget = this.widget.forWindow(window);
+ if (widget) {
+ let tab = window.gBrowser.selectedTab;
+ this.updateButton(widget.node, this.tabContext.get(tab));
+ }
+ },
+
+ // Update the toolbar button when the extension changes the icon,
+ // title, badge, etc. If it only changes a parameter for a single
+ // tab, |tab| will be that tab. Otherwise it will be null.
+ updateOnChange(tab) {
+ if (tab) {
+ if (tab.selected) {
+ this.updateWindow(tab.ownerGlobal);
+ }
+ } else {
+ for (let window of WindowListManager.browserWindows()) {
+ this.updateWindow(window);
+ }
+ }
+ },
+
+ // tab is allowed to be null.
+ // prop should be one of "icon", "title", "badgeText", "popup", or "badgeBackgroundColor".
+ setProperty(tab, prop, value) {
+ if (tab == null) {
+ this.defaults[prop] = value;
+ } else if (value != null) {
+ this.tabContext.get(tab)[prop] = value;
+ } else {
+ delete this.tabContext.get(tab)[prop];
+ }
+
+ this.updateOnChange(tab);
+ },
+
+ // tab is allowed to be null.
+ // prop should be one of "title", "badgeText", "popup", or "badgeBackgroundColor".
+ getProperty(tab, prop) {
+ if (tab == null) {
+ return this.defaults[prop];
+ }
+ return this.tabContext.get(tab)[prop];
+ },
+
+ shutdown() {
+ this.tabContext.shutdown();
+ CustomizableUI.destroyWidget(this.id);
+ },
+};
+
+BrowserAction.for = (extension) => {
+ return browserActionMap.get(extension);
+};
+
+global.browserActionFor = BrowserAction.for;
+
+/* eslint-disable mozilla/balanced-listeners */
+extensions.on("manifest_browser_action", (type, directive, extension, manifest) => {
+ let browserAction = new BrowserAction(manifest.browser_action, extension);
+ browserAction.build();
+ browserActionMap.set(extension, browserAction);
+});
+
+extensions.on("shutdown", (type, extension) => {
+ if (browserActionMap.has(extension)) {
+ browserActionMap.get(extension).shutdown();
+ browserActionMap.delete(extension);
+ }
+});
+/* eslint-enable mozilla/balanced-listeners */
+
+extensions.registerSchemaAPI("browserAction", "addon_parent", context => {
+ let {extension} = context;
+ return {
+ browserAction: {
+ onClicked: new EventManager(context, "browserAction.onClicked", fire => {
+ let listener = () => {
+ let tab = TabManager.activeTab;
+ fire(TabManager.convert(extension, tab));
+ };
+ BrowserAction.for(extension).on("click", listener);
+ return () => {
+ BrowserAction.for(extension).off("click", listener);
+ };
+ }).api(),
+
+ enable: function(tabId) {
+ let tab = tabId !== null ? TabManager.getTab(tabId, context) : null;
+ BrowserAction.for(extension).setProperty(tab, "enabled", true);
+ },
+
+ disable: function(tabId) {
+ let tab = tabId !== null ? TabManager.getTab(tabId, context) : null;
+ BrowserAction.for(extension).setProperty(tab, "enabled", false);
+ },
+
+ setTitle: function(details) {
+ let tab = details.tabId !== null ? TabManager.getTab(details.tabId, context) : null;
+
+ let title = details.title;
+ // Clear the tab-specific title when given a null string.
+ if (tab && title == "") {
+ title = null;
+ }
+ BrowserAction.for(extension).setProperty(tab, "title", title);
+ },
+
+ getTitle: function(details) {
+ let tab = details.tabId !== null ? TabManager.getTab(details.tabId, context) : null;
+
+ let title = BrowserAction.for(extension).getProperty(tab, "title");
+ return Promise.resolve(title);
+ },
+
+ setIcon: function(details) {
+ let tab = details.tabId !== null ? TabManager.getTab(details.tabId, context) : null;
+
+ let icon = IconDetails.normalize(details, extension, context);
+ BrowserAction.for(extension).setProperty(tab, "icon", icon);
+ },
+
+ setBadgeText: function(details) {
+ let tab = details.tabId !== null ? TabManager.getTab(details.tabId, context) : null;
+
+ BrowserAction.for(extension).setProperty(tab, "badgeText", details.text);
+ },
+
+ getBadgeText: function(details) {
+ let tab = details.tabId !== null ? TabManager.getTab(details.tabId, context) : null;
+
+ let text = BrowserAction.for(extension).getProperty(tab, "badgeText");
+ return Promise.resolve(text);
+ },
+
+ setPopup: function(details) {
+ let tab = details.tabId !== null ? TabManager.getTab(details.tabId, context) : null;
+
+ // Note: Chrome resolves arguments to setIcon relative to the calling
+ // context, but resolves arguments to setPopup relative to the extension
+ // root.
+ // For internal consistency, we currently resolve both relative to the
+ // calling context.
+ let url = details.popup && context.uri.resolve(details.popup);
+ if (url && !context.checkLoadURL(url)) {
+ return Promise.reject({message: `Access denied for URL ${url}`});
+ }
+ BrowserAction.for(extension).setProperty(tab, "popup", url);
+ },
+
+ getPopup: function(details) {
+ let tab = details.tabId !== null ? TabManager.getTab(details.tabId, context) : null;
+
+ let popup = BrowserAction.for(extension).getProperty(tab, "popup");
+ return Promise.resolve(popup);
+ },
+
+ setBadgeBackgroundColor: function(details) {
+ let tab = details.tabId !== null ? TabManager.getTab(details.tabId, context) : null;
+ let color = details.color;
+ if (!Array.isArray(color)) {
+ let col = DOMUtils.colorToRGBA(color);
+ color = col && [col.r, col.g, col.b, Math.round(col.a * 255)];
+ }
+ BrowserAction.for(extension).setProperty(tab, "badgeBackgroundColor", color);
+ },
+
+ getBadgeBackgroundColor: function(details, callback) {
+ let tab = details.tabId !== null ? TabManager.getTab(details.tabId, context) : null;
+
+ let color = BrowserAction.for(extension).getProperty(tab, "badgeBackgroundColor");
+ return Promise.resolve(color || [0xd9, 0, 0, 255]);
+ },
+ },
+ };
+});