diff options
Diffstat (limited to 'toolkit/components/webextensions/ext-browser-content.js')
| -rw-r--r-- | toolkit/components/webextensions/ext-browser-content.js | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/toolkit/components/webextensions/ext-browser-content.js b/toolkit/components/webextensions/ext-browser-content.js deleted file mode 100644 index e14ca50d6..000000000 --- a/toolkit/components/webextensions/ext-browser-content.js +++ /dev/null @@ -1,217 +0,0 @@ -/* This Source Code Form is subject to the terms of the Mozilla Public - * License, v. 2.0. If a copy of the MPL was not distributed with this - * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ - -"use strict"; - -const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components; - -Cu.import("resource://gre/modules/ExtensionUtils.jsm"); -Cu.import("resource://gre/modules/XPCOMUtils.jsm"); - -XPCOMUtils.defineLazyModuleGetter(this, "clearTimeout", - "resource://gre/modules/Timer.jsm"); -XPCOMUtils.defineLazyModuleGetter(this, "NetUtil", - "resource://gre/modules/NetUtil.jsm"); -XPCOMUtils.defineLazyModuleGetter(this, "require", - "resource://devtools/shared/Loader.jsm"); -XPCOMUtils.defineLazyModuleGetter(this, "setTimeout", - "resource://gre/modules/Timer.jsm"); - -XPCOMUtils.defineLazyGetter(this, "colorUtils", () => { - return require("devtools/shared/css/color").colorUtils; -}); - -const { - stylesheetMap, -} = ExtensionUtils; - -/* globals addMessageListener, content, docShell, sendAsyncMessage */ - -// Minimum time between two resizes. -const RESIZE_TIMEOUT = 100; - -const BrowserListener = { - init({allowScriptsToClose, fixedWidth, maxHeight, maxWidth, stylesheets}) { - this.fixedWidth = fixedWidth; - this.stylesheets = stylesheets || []; - - this.maxWidth = maxWidth; - this.maxHeight = maxHeight; - - this.oldBackground = null; - - if (allowScriptsToClose) { - content.QueryInterface(Ci.nsIInterfaceRequestor) - .getInterface(Ci.nsIDOMWindowUtils) - .allowScriptsToClose(); - } - - addEventListener("DOMWindowCreated", this, true); - addEventListener("load", this, true); - addEventListener("DOMContentLoaded", this, true); - addEventListener("DOMWindowClose", this, true); - addEventListener("MozScrolledAreaChanged", this, true); - }, - - destroy() { - removeEventListener("DOMWindowCreated", this, true); - removeEventListener("load", this, true); - removeEventListener("DOMContentLoaded", this, true); - removeEventListener("DOMWindowClose", this, true); - removeEventListener("MozScrolledAreaChanged", this, true); - }, - - receiveMessage({name, data}) { - if (name === "Extension:InitBrowser") { - this.init(data); - } - }, - - handleEvent(event) { - switch (event.type) { - case "DOMWindowCreated": - if (event.target === content.document) { - let winUtils = content.QueryInterface(Ci.nsIInterfaceRequestor) - .getInterface(Ci.nsIDOMWindowUtils); - - for (let url of this.stylesheets) { - winUtils.addSheet(stylesheetMap.get(url), winUtils.AGENT_SHEET); - } - } - break; - - case "DOMWindowClose": - if (event.target === content) { - event.preventDefault(); - - sendAsyncMessage("Extension:DOMWindowClose"); - } - break; - - case "DOMContentLoaded": - if (event.target === content.document) { - sendAsyncMessage("Extension:BrowserContentLoaded", {url: content.location.href}); - this.handleDOMChange(true); - } - break; - - case "load": - if (event.target.contentWindow === content) { - // For about:addons inline <browsers>, we currently receive a load - // event on the <browser> element, but no load or DOMContentLoaded - // events from the content window. - sendAsyncMessage("Extension:BrowserContentLoaded", {url: content.location.href}); - } else if (event.target !== content.document) { - break; - } - - // We use a capturing listener, so we get this event earlier than any - // load listeners in the content page. Resizing after a timeout ensures - // that we calculate the size after the entire event cycle has completed - // (unless someone spins the event loop, anyway), and hopefully after - // the content has made any modifications. - Promise.resolve().then(() => { - this.handleDOMChange(true); - }); - - // Mutation observer to make sure the panel shrinks when the content does. - new content.MutationObserver(this.handleDOMChange.bind(this)).observe( - content.document.documentElement, { - attributes: true, - characterData: true, - childList: true, - subtree: true, - }); - break; - - case "MozScrolledAreaChanged": - this.handleDOMChange(); - break; - } - }, - - // Resizes the browser to match the preferred size of the content (debounced). - handleDOMChange(ignoreThrottling = false) { - if (ignoreThrottling && this.resizeTimeout) { - clearTimeout(this.resizeTimeout); - this.resizeTimeout = null; - } - - if (this.resizeTimeout == null) { - this.resizeTimeout = setTimeout(() => { - try { - if (content) { - this._handleDOMChange("delayed"); - } - } finally { - this.resizeTimeout = null; - } - }, RESIZE_TIMEOUT); - - this._handleDOMChange(); - } - }, - - _handleDOMChange(detail) { - let doc = content.document; - - let body = doc.body; - if (!body || doc.compatMode === "BackCompat") { - // In quirks mode, the root element is used as the scroll frame, and the - // body lies about its scroll geometry, and returns the values for the - // root instead. - body = doc.documentElement; - } - - - let result; - if (this.fixedWidth) { - // If we're in a fixed-width area (namely a slide-in subview of the main - // menu panel), we need to calculate the view height based on the - // preferred height of the content document's root scrollable element at the - // current width, rather than the complete preferred dimensions of the - // content window. - - // Compensate for any offsets (margin, padding, ...) between the scroll - // area of the body and the outer height of the document. - let getHeight = elem => elem.getBoundingClientRect(elem).height; - let bodyPadding = getHeight(doc.documentElement) - getHeight(body); - - let height = Math.ceil(body.scrollHeight + bodyPadding); - - result = {height, detail}; - } else { - let background = doc.defaultView.getComputedStyle(body).backgroundColor; - let bgColor = colorUtils.colorToRGBA(background); - if (bgColor.a !== 1) { - // Ignore non-opaque backgrounds. - background = null; - } - - if (background !== this.oldBackground) { - sendAsyncMessage("Extension:BrowserBackgroundChanged", {background}); - } - this.oldBackground = background; - - - // Adjust the size of the browser based on its content's preferred size. - let {contentViewer} = docShell; - let ratio = content.devicePixelRatio; - - let w = {}, h = {}; - contentViewer.getContentSizeConstrained(this.maxWidth * ratio, - this.maxHeight * ratio, - w, h); - - let width = Math.ceil(w.value / ratio); - let height = Math.ceil(h.value / ratio); - - result = {width, height, detail}; - } - - sendAsyncMessage("Extension:BrowserResized", result); - }, -}; - -addMessageListener("Extension:InitBrowser", BrowserListener); |