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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /toolkit/content/browser-content.js
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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diff --git a/toolkit/content/browser-content.js b/toolkit/content/browser-content.js
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+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* 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/. */
+
+var Cc = Components.classes;
+var Ci = Components.interfaces;
+var Cu = Components.utils;
+var Cr = Components.results;
+
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "ReaderMode",
+ "resource://gre/modules/ReaderMode.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "BrowserUtils",
+ "resource://gre/modules/BrowserUtils.jsm");
+
+var global = this;
+
+
+// Lazily load the finder code
+addMessageListener("Finder:Initialize", function () {
+ let {RemoteFinderListener} = Cu.import("resource://gre/modules/RemoteFinder.jsm", {});
+ new RemoteFinderListener(global);
+});
+
+var ClickEventHandler = {
+ init: function init() {
+ this._scrollable = null;
+ this._scrolldir = "";
+ this._startX = null;
+ this._startY = null;
+ this._screenX = null;
+ this._screenY = null;
+ this._lastFrame = null;
+ this.autoscrollLoop = this.autoscrollLoop.bind(this);
+
+ Services.els.addSystemEventListener(global, "mousedown", this, true);
+
+ addMessageListener("Autoscroll:Stop", this);
+ },
+
+ isAutoscrollBlocker: function(node) {
+ let mmPaste = Services.prefs.getBoolPref("middlemouse.paste");
+ let mmScrollbarPosition = Services.prefs.getBoolPref("middlemouse.scrollbarPosition");
+
+ while (node) {
+ if ((node instanceof content.HTMLAnchorElement || node instanceof content.HTMLAreaElement) &&
+ node.hasAttribute("href")) {
+ return true;
+ }
+
+ if (mmPaste && (node instanceof content.HTMLInputElement ||
+ node instanceof content.HTMLTextAreaElement)) {
+ return true;
+ }
+
+ if (node instanceof content.XULElement && mmScrollbarPosition
+ && (node.localName == "scrollbar" || node.localName == "scrollcorner")) {
+ return true;
+ }
+
+ node = node.parentNode;
+ }
+ return false;
+ },
+
+ findNearestScrollableElement: function(aNode) {
+ // this is a list of overflow property values that allow scrolling
+ const scrollingAllowed = ['scroll', 'auto'];
+
+ // go upward in the DOM and find any parent element that has a overflow
+ // area and can therefore be scrolled
+ for (this._scrollable = aNode; this._scrollable;
+ this._scrollable = this._scrollable.parentNode) {
+ // do not use overflow based autoscroll for <html> and <body>
+ // Elements or non-html elements such as svg or Document nodes
+ // also make sure to skip select elements that are not multiline
+ if (!(this._scrollable instanceof content.HTMLElement) ||
+ ((this._scrollable instanceof content.HTMLSelectElement) && !this._scrollable.multiple)) {
+ continue;
+ }
+
+ var overflowx = this._scrollable.ownerDocument.defaultView
+ .getComputedStyle(this._scrollable, '')
+ .getPropertyValue('overflow-x');
+ var overflowy = this._scrollable.ownerDocument.defaultView
+ .getComputedStyle(this._scrollable, '')
+ .getPropertyValue('overflow-y');
+ // we already discarded non-multiline selects so allow vertical
+ // scroll for multiline ones directly without checking for a
+ // overflow property
+ var scrollVert = this._scrollable.scrollTopMax &&
+ (this._scrollable instanceof content.HTMLSelectElement ||
+ scrollingAllowed.indexOf(overflowy) >= 0);
+
+ // do not allow horizontal scrolling for select elements, it leads
+ // to visual artifacts and is not the expected behavior anyway
+ if (!(this._scrollable instanceof content.HTMLSelectElement) &&
+ this._scrollable.scrollLeftMin != this._scrollable.scrollLeftMax &&
+ scrollingAllowed.indexOf(overflowx) >= 0) {
+ this._scrolldir = scrollVert ? "NSEW" : "EW";
+ break;
+ } else if (scrollVert) {
+ this._scrolldir = "NS";
+ break;
+ }
+ }
+
+ if (!this._scrollable) {
+ this._scrollable = aNode.ownerDocument.defaultView;
+ if (this._scrollable.scrollMaxX != this._scrollable.scrollMinX) {
+ this._scrolldir = this._scrollable.scrollMaxY !=
+ this._scrollable.scrollMinY ? "NSEW" : "EW";
+ } else if (this._scrollable.scrollMaxY != this._scrollable.scrollMinY) {
+ this._scrolldir = "NS";
+ } else if (this._scrollable.frameElement) {
+ this.findNearestScrollableElement(this._scrollable.frameElement);
+ } else {
+ this._scrollable = null; // abort scrolling
+ }
+ }
+ },
+
+ startScroll: function(event) {
+
+ this.findNearestScrollableElement(event.originalTarget);
+
+ if (!this._scrollable)
+ return;
+
+ let [enabled] = sendSyncMessage("Autoscroll:Start",
+ {scrolldir: this._scrolldir,
+ screenX: event.screenX,
+ screenY: event.screenY});
+ if (!enabled) {
+ this._scrollable = null;
+ return;
+ }
+
+ Services.els.addSystemEventListener(global, "mousemove", this, true);
+ addEventListener("pagehide", this, true);
+
+ this._ignoreMouseEvents = true;
+ this._startX = event.screenX;
+ this._startY = event.screenY;
+ this._screenX = event.screenX;
+ this._screenY = event.screenY;
+ this._scrollErrorX = 0;
+ this._scrollErrorY = 0;
+ this._lastFrame = content.performance.now();
+
+ content.requestAnimationFrame(this.autoscrollLoop);
+ },
+
+ stopScroll: function() {
+ if (this._scrollable) {
+ this._scrollable.mozScrollSnap();
+ this._scrollable = null;
+
+ Services.els.removeSystemEventListener(global, "mousemove", this, true);
+ removeEventListener("pagehide", this, true);
+ }
+ },
+
+ accelerate: function(curr, start) {
+ const speed = 12;
+ var val = (curr - start) / speed;
+
+ if (val > 1)
+ return val * Math.sqrt(val) - 1;
+ if (val < -1)
+ return val * Math.sqrt(-val) + 1;
+ return 0;
+ },
+
+ roundToZero: function(num) {
+ if (num > 0)
+ return Math.floor(num);
+ return Math.ceil(num);
+ },
+
+ autoscrollLoop: function(timestamp) {
+ if (!this._scrollable) {
+ // Scrolling has been canceled
+ return;
+ }
+
+ // avoid long jumps when the browser hangs for more than
+ // |maxTimeDelta| ms
+ const maxTimeDelta = 100;
+ var timeDelta = Math.min(maxTimeDelta, timestamp - this._lastFrame);
+ // we used to scroll |accelerate()| pixels every 20ms (50fps)
+ var timeCompensation = timeDelta / 20;
+ this._lastFrame = timestamp;
+
+ var actualScrollX = 0;
+ var actualScrollY = 0;
+ // don't bother scrolling vertically when the scrolldir is only horizontal
+ // and the other way around
+ if (this._scrolldir != 'EW') {
+ var y = this.accelerate(this._screenY, this._startY) * timeCompensation;
+ var desiredScrollY = this._scrollErrorY + y;
+ actualScrollY = this.roundToZero(desiredScrollY);
+ this._scrollErrorY = (desiredScrollY - actualScrollY);
+ }
+ if (this._scrolldir != 'NS') {
+ var x = this.accelerate(this._screenX, this._startX) * timeCompensation;
+ var desiredScrollX = this._scrollErrorX + x;
+ actualScrollX = this.roundToZero(desiredScrollX);
+ this._scrollErrorX = (desiredScrollX - actualScrollX);
+ }
+
+ const kAutoscroll = 15; // defined in mozilla/layers/ScrollInputMethods.h
+ Services.telemetry.getHistogramById("SCROLL_INPUT_METHODS").add(kAutoscroll);
+
+ this._scrollable.scrollBy({
+ left: actualScrollX,
+ top: actualScrollY,
+ behavior: "instant"
+ });
+ content.requestAnimationFrame(this.autoscrollLoop);
+ },
+
+ handleEvent: function(event) {
+ if (event.type == "mousemove") {
+ this._screenX = event.screenX;
+ this._screenY = event.screenY;
+ } else if (event.type == "mousedown") {
+ if (event.isTrusted &
+ !event.defaultPrevented &&
+ event.button == 1 &&
+ !this._scrollable &&
+ !this.isAutoscrollBlocker(event.originalTarget)) {
+ this.startScroll(event);
+ }
+ } else if (event.type == "pagehide") {
+ if (this._scrollable) {
+ var doc =
+ this._scrollable.ownerDocument || this._scrollable.document;
+ if (doc == event.target) {
+ sendAsyncMessage("Autoscroll:Cancel");
+ }
+ }
+ }
+ },
+
+ receiveMessage: function(msg) {
+ switch (msg.name) {
+ case "Autoscroll:Stop": {
+ this.stopScroll();
+ break;
+ }
+ }
+ },
+};
+ClickEventHandler.init();
+
+var PopupBlocking = {
+ popupData: null,
+ popupDataInternal: null,
+
+ init: function() {
+ addEventListener("DOMPopupBlocked", this, true);
+ addEventListener("pageshow", this, true);
+ addEventListener("pagehide", this, true);
+
+ addMessageListener("PopupBlocking:UnblockPopup", this);
+ addMessageListener("PopupBlocking:GetBlockedPopupList", this);
+ },
+
+ receiveMessage: function(msg) {
+ switch (msg.name) {
+ case "PopupBlocking:UnblockPopup": {
+ let i = msg.data.index;
+ if (this.popupData && this.popupData[i]) {
+ let data = this.popupData[i];
+ let internals = this.popupDataInternal[i];
+ let dwi = internals.requestingWindow;
+
+ // If we have a requesting window and the requesting document is
+ // still the current document, open the popup.
+ if (dwi && dwi.document == internals.requestingDocument) {
+ dwi.open(data.popupWindowURIspec, data.popupWindowName, data.popupWindowFeatures);
+ }
+ }
+ break;
+ }
+
+ case "PopupBlocking:GetBlockedPopupList": {
+ let popupData = [];
+ let length = this.popupData ? this.popupData.length : 0;
+
+ // Limit 15 popup URLs to be reported through the UI
+ length = Math.min(length, 15);
+
+ for (let i = 0; i < length; i++) {
+ let popupWindowURIspec = this.popupData[i].popupWindowURIspec;
+
+ if (popupWindowURIspec == global.content.location.href) {
+ popupWindowURIspec = "<self>";
+ } else {
+ // Limit 500 chars to be sent because the URI will be cropped
+ // by the UI anyway, and data: URIs can be significantly larger.
+ popupWindowURIspec = popupWindowURIspec.substring(0, 500)
+ }
+
+ popupData.push({popupWindowURIspec});
+ }
+
+ sendAsyncMessage("PopupBlocking:ReplyGetBlockedPopupList", {popupData});
+ break;
+ }
+ }
+ },
+
+ handleEvent: function(ev) {
+ switch (ev.type) {
+ case "DOMPopupBlocked":
+ return this.onPopupBlocked(ev);
+ case "pageshow":
+ return this.onPageShow(ev);
+ case "pagehide":
+ return this.onPageHide(ev);
+ }
+ return undefined;
+ },
+
+ onPopupBlocked: function(ev) {
+ if (!this.popupData) {
+ this.popupData = new Array();
+ this.popupDataInternal = new Array();
+ }
+
+ let obj = {
+ popupWindowURIspec: ev.popupWindowURI ? ev.popupWindowURI.spec : "about:blank",
+ popupWindowFeatures: ev.popupWindowFeatures,
+ popupWindowName: ev.popupWindowName
+ };
+
+ let internals = {
+ requestingWindow: ev.requestingWindow,
+ requestingDocument: ev.requestingWindow.document,
+ };
+
+ this.popupData.push(obj);
+ this.popupDataInternal.push(internals);
+ this.updateBlockedPopups(true);
+ },
+
+ onPageShow: function(ev) {
+ if (this.popupData) {
+ let i = 0;
+ while (i < this.popupData.length) {
+ // Filter out irrelevant reports.
+ if (this.popupDataInternal[i].requestingWindow &&
+ (this.popupDataInternal[i].requestingWindow.document ==
+ this.popupDataInternal[i].requestingDocument)) {
+ i++;
+ } else {
+ this.popupData.splice(i, 1);
+ this.popupDataInternal.splice(i, 1);
+ }
+ }
+ if (this.popupData.length == 0) {
+ this.popupData = null;
+ this.popupDataInternal = null;
+ }
+ this.updateBlockedPopups(false);
+ }
+ },
+
+ onPageHide: function(ev) {
+ if (this.popupData) {
+ this.popupData = null;
+ this.popupDataInternal = null;
+ this.updateBlockedPopups(false);
+ }
+ },
+
+ updateBlockedPopups: function(freshPopup) {
+ sendAsyncMessage("PopupBlocking:UpdateBlockedPopups",
+ {
+ count: this.popupData ? this.popupData.length : 0,
+ freshPopup
+ });
+ },
+};
+PopupBlocking.init();
+
+XPCOMUtils.defineLazyGetter(this, "console", () => {
+ // Set up console.* for frame scripts.
+ let Console = Components.utils.import("resource://gre/modules/Console.jsm", {});
+ return new Console.ConsoleAPI();
+});
+
+var Printing = {
+ // Bug 1088061: nsPrintEngine's DoCommonPrint currently expects the
+ // progress listener passed to it to QI to an nsIPrintingPromptService
+ // in order to know that a printing progress dialog has been shown. That's
+ // really all the interface is used for, hence the fact that I don't actually
+ // implement the interface here. Bug 1088061 has been filed to remove
+ // this hackery.
+ QueryInterface: XPCOMUtils.generateQI([Ci.nsIWebProgressListener,
+ Ci.nsIPrintingPromptService]),
+
+ MESSAGES: [
+ "Printing:Preview:Enter",
+ "Printing:Preview:Exit",
+ "Printing:Preview:Navigate",
+ "Printing:Preview:ParseDocument",
+ "Printing:Preview:UpdatePageCount",
+ "Printing:Print",
+ ],
+
+ init() {
+ this.MESSAGES.forEach(msgName => addMessageListener(msgName, this));
+ addEventListener("PrintingError", this, true);
+ },
+
+ get shouldSavePrintSettings() {
+ return Services.prefs.getBoolPref("print.use_global_printsettings", false) &&
+ Services.prefs.getBoolPref("print.save_print_settings", false);
+ },
+
+ handleEvent(event) {
+ if (event.type == "PrintingError") {
+ let win = event.target.defaultView;
+ let wbp = win.QueryInterface(Ci.nsIInterfaceRequestor)
+ .getInterface(Ci.nsIWebBrowserPrint);
+ let nsresult = event.detail;
+ sendAsyncMessage("Printing:Error", {
+ isPrinting: wbp.doingPrint,
+ nsresult: nsresult,
+ });
+ }
+ },
+
+ receiveMessage(message) {
+ let objects = message.objects;
+ let data = message.data;
+ switch (message.name) {
+ case "Printing:Preview:Enter": {
+ this.enterPrintPreview(Services.wm.getOuterWindowWithId(data.windowID), data.simplifiedMode);
+ break;
+ }
+
+ case "Printing:Preview:Exit": {
+ this.exitPrintPreview();
+ break;
+ }
+
+ case "Printing:Preview:Navigate": {
+ this.navigate(data.navType, data.pageNum);
+ break;
+ }
+
+ case "Printing:Preview:ParseDocument": {
+ this.parseDocument(data.URL, Services.wm.getOuterWindowWithId(data.windowID));
+ break;
+ }
+
+ case "Printing:Preview:UpdatePageCount": {
+ this.updatePageCount();
+ break;
+ }
+
+ case "Printing:Print": {
+ this.print(Services.wm.getOuterWindowWithId(data.windowID), data.simplifiedMode);
+ break;
+ }
+ }
+ },
+
+ getPrintSettings() {
+ try {
+ let PSSVC = Cc["@mozilla.org/gfx/printsettings-service;1"]
+ .getService(Ci.nsIPrintSettingsService);
+
+ let printSettings = PSSVC.globalPrintSettings;
+ if (!printSettings.printerName) {
+ printSettings.printerName = PSSVC.defaultPrinterName;
+ }
+ // First get any defaults from the printer
+ PSSVC.initPrintSettingsFromPrinter(printSettings.printerName,
+ printSettings);
+ // now augment them with any values from last time
+ PSSVC.initPrintSettingsFromPrefs(printSettings, true,
+ printSettings.kInitSaveAll);
+
+ return printSettings;
+ } catch (e) {
+ Components.utils.reportError(e);
+ }
+
+ return null;
+ },
+
+ parseDocument(URL, contentWindow) {
+ // By using ReaderMode primitives, we parse given document and place the
+ // resulting JS object into the DOM of current browser.
+ let articlePromise = ReaderMode.parseDocument(contentWindow.document).catch(Cu.reportError);
+ articlePromise.then(function (article) {
+ // We make use of a web progress listener in order to know when the content we inject
+ // into the DOM has finished rendering. If our layout engine is still painting, we
+ // will wait for MozAfterPaint event to be fired.
+ let webProgressListener = {
+ onStateChange: function (webProgress, req, flags, status) {
+ if (flags & Ci.nsIWebProgressListener.STATE_STOP) {
+ webProgress.removeProgressListener(webProgressListener);
+ let domUtils = content.QueryInterface(Ci.nsIInterfaceRequestor)
+ .getInterface(Ci.nsIDOMWindowUtils);
+ // Here we tell the parent that we have parsed the document successfully
+ // using ReaderMode primitives and we are able to enter on preview mode.
+ if (domUtils.isMozAfterPaintPending) {
+ addEventListener("MozAfterPaint", function onPaint() {
+ removeEventListener("MozAfterPaint", onPaint);
+ sendAsyncMessage("Printing:Preview:ReaderModeReady");
+ });
+ } else {
+ sendAsyncMessage("Printing:Preview:ReaderModeReady");
+ }
+ }
+ },
+
+ QueryInterface: XPCOMUtils.generateQI([
+ Ci.nsIWebProgressListener,
+ Ci.nsISupportsWeakReference,
+ Ci.nsIObserver,
+ ]),
+ };
+
+ // Here we QI the docShell into a nsIWebProgress passing our web progress listener in.
+ let webProgress = docShell.QueryInterface(Ci.nsIInterfaceRequestor)
+ .getInterface(Ci.nsIWebProgress);
+ webProgress.addProgressListener(webProgressListener, Ci.nsIWebProgress.NOTIFY_STATE_REQUEST);
+
+ content.document.head.innerHTML = "";
+
+ // Set title of document
+ content.document.title = article.title;
+
+ // Set base URI of document. Print preview code will read this value to
+ // populate the URL field in print settings so that it doesn't show
+ // "about:blank" as its URI.
+ let headBaseElement = content.document.createElement("base");
+ headBaseElement.setAttribute("href", URL);
+ content.document.head.appendChild(headBaseElement);
+
+ // Create link element referencing aboutReader.css and append it to head
+ let headStyleElement = content.document.createElement("link");
+ headStyleElement.setAttribute("rel", "stylesheet");
+ headStyleElement.setAttribute("href", "chrome://global/skin/aboutReader.css");
+ headStyleElement.setAttribute("type", "text/css");
+ content.document.head.appendChild(headStyleElement);
+
+ content.document.body.innerHTML = "";
+
+ // Create container div (main element) and append it to body
+ let containerElement = content.document.createElement("div");
+ containerElement.setAttribute("id", "container");
+ content.document.body.appendChild(containerElement);
+
+ // Create header div and append it to container
+ let headerElement = content.document.createElement("div");
+ headerElement.setAttribute("id", "reader-header");
+ headerElement.setAttribute("class", "header");
+ containerElement.appendChild(headerElement);
+
+ // Create style element for header div and import simplifyMode.css
+ let controlHeaderStyle = content.document.createElement("style");
+ controlHeaderStyle.setAttribute("scoped", "");
+ controlHeaderStyle.textContent = "@import url(\"chrome://global/content/simplifyMode.css\");";
+ headerElement.appendChild(controlHeaderStyle);
+
+ // Jam the article's title and byline into header div
+ let titleElement = content.document.createElement("h1");
+ titleElement.setAttribute("id", "reader-title");
+ titleElement.textContent = article.title;
+ headerElement.appendChild(titleElement);
+
+ let bylineElement = content.document.createElement("div");
+ bylineElement.setAttribute("id", "reader-credits");
+ bylineElement.setAttribute("class", "credits");
+ bylineElement.textContent = article.byline;
+ headerElement.appendChild(bylineElement);
+
+ // Display header element
+ headerElement.style.display = "block";
+
+ // Create content div and append it to container
+ let contentElement = content.document.createElement("div");
+ contentElement.setAttribute("class", "content");
+ containerElement.appendChild(contentElement);
+
+ // Create style element for content div and import aboutReaderContent.css
+ let controlContentStyle = content.document.createElement("style");
+ controlContentStyle.setAttribute("scoped", "");
+ controlContentStyle.textContent = "@import url(\"chrome://global/skin/aboutReaderContent.css\");";
+ contentElement.appendChild(controlContentStyle);
+
+ // Jam the article's content into content div
+ let readerContent = content.document.createElement("div");
+ readerContent.setAttribute("id", "moz-reader-content");
+ contentElement.appendChild(readerContent);
+
+ let articleUri = Services.io.newURI(article.url, null, null);
+ let parserUtils = Cc["@mozilla.org/parserutils;1"].getService(Ci.nsIParserUtils);
+ let contentFragment = parserUtils.parseFragment(article.content,
+ Ci.nsIParserUtils.SanitizerDropForms | Ci.nsIParserUtils.SanitizerAllowStyle,
+ false, articleUri, readerContent);
+
+ readerContent.appendChild(contentFragment);
+
+ // Display reader content element
+ readerContent.style.display = "block";
+ });
+ },
+
+ enterPrintPreview(contentWindow, simplifiedMode) {
+ // We'll call this whenever we've finished reflowing the document, or if
+ // we errored out while attempting to print preview (in which case, we'll
+ // notify the parent that we've failed).
+ let notifyEntered = (error) => {
+ removeEventListener("printPreviewUpdate", onPrintPreviewReady);
+ sendAsyncMessage("Printing:Preview:Entered", {
+ failed: !!error,
+ });
+ };
+
+ let onPrintPreviewReady = () => {
+ notifyEntered();
+ };
+
+ // We have to wait for the print engine to finish reflowing all of the
+ // documents and subdocuments before we can tell the parent to flip to
+ // the print preview UI - otherwise, the print preview UI might ask for
+ // information (like the number of pages in the document) before we have
+ // our PresShells set up.
+ addEventListener("printPreviewUpdate", onPrintPreviewReady);
+
+ try {
+ let printSettings = this.getPrintSettings();
+
+ // If we happen to be on simplified mode, we need to set docURL in order
+ // to generate header/footer content correctly, since simplified tab has
+ // "about:blank" as its URI.
+ if (printSettings && simplifiedMode)
+ printSettings.docURL = contentWindow.document.baseURI;
+
+ docShell.printPreview.printPreview(printSettings, contentWindow, this);
+ } catch (error) {
+ // This might fail if we, for example, attempt to print a XUL document.
+ // In that case, we inform the parent to bail out of print preview.
+ Components.utils.reportError(error);
+ notifyEntered(error);
+ }
+ },
+
+ exitPrintPreview() {
+ docShell.printPreview.exitPrintPreview();
+ },
+
+ print(contentWindow, simplifiedMode) {
+ let printSettings = this.getPrintSettings();
+ let rv = Cr.NS_OK;
+
+ // If we happen to be on simplified mode, we need to set docURL in order
+ // to generate header/footer content correctly, since simplified tab has
+ // "about:blank" as its URI.
+ if (printSettings && simplifiedMode) {
+ printSettings.docURL = contentWindow.document.baseURI;
+ }
+
+ try {
+ let print = contentWindow.QueryInterface(Ci.nsIInterfaceRequestor)
+ .getInterface(Ci.nsIWebBrowserPrint);
+
+ if (print.doingPrintPreview) {
+ this.logKeyedTelemetry("PRINT_DIALOG_OPENED_COUNT", "FROM_PREVIEW");
+ } else {
+ this.logKeyedTelemetry("PRINT_DIALOG_OPENED_COUNT", "FROM_PAGE");
+ }
+
+ print.print(printSettings, null);
+
+ if (print.doingPrintPreview) {
+ if (simplifiedMode) {
+ this.logKeyedTelemetry("PRINT_COUNT", "SIMPLIFIED");
+ } else {
+ this.logKeyedTelemetry("PRINT_COUNT", "WITH_PREVIEW");
+ }
+ } else {
+ this.logKeyedTelemetry("PRINT_COUNT", "WITHOUT_PREVIEW");
+ }
+ } catch (e) {
+ // Pressing cancel is expressed as an NS_ERROR_ABORT return value,
+ // causing an exception to be thrown which we catch here.
+ if (e.result != Cr.NS_ERROR_ABORT) {
+ Cu.reportError(`In Printing:Print:Done handler, got unexpected rv
+ ${e.result}.`);
+ sendAsyncMessage("Printing:Error", {
+ isPrinting: true,
+ nsresult: e.result,
+ });
+ }
+ }
+
+ if (this.shouldSavePrintSettings) {
+ let PSSVC = Cc["@mozilla.org/gfx/printsettings-service;1"]
+ .getService(Ci.nsIPrintSettingsService);
+
+ PSSVC.savePrintSettingsToPrefs(printSettings, true,
+ printSettings.kInitSaveAll);
+ PSSVC.savePrintSettingsToPrefs(printSettings, false,
+ printSettings.kInitSavePrinterName);
+ }
+ },
+
+ logKeyedTelemetry(id, key) {
+ let histogram = Services.telemetry.getKeyedHistogramById(id);
+ histogram.add(key);
+ },
+
+ updatePageCount() {
+ let numPages = docShell.printPreview.printPreviewNumPages;
+ sendAsyncMessage("Printing:Preview:UpdatePageCount", {
+ numPages: numPages,
+ });
+ },
+
+ navigate(navType, pageNum) {
+ docShell.printPreview.printPreviewNavigate(navType, pageNum);
+ },
+
+ /* nsIWebProgressListener for print preview */
+
+ onStateChange(aWebProgress, aRequest, aStateFlags, aStatus) {
+ sendAsyncMessage("Printing:Preview:StateChange", {
+ stateFlags: aStateFlags,
+ status: aStatus,
+ });
+ },
+
+ onProgressChange(aWebProgress, aRequest, aCurSelfProgress,
+ aMaxSelfProgress, aCurTotalProgress,
+ aMaxTotalProgress) {
+ sendAsyncMessage("Printing:Preview:ProgressChange", {
+ curSelfProgress: aCurSelfProgress,
+ maxSelfProgress: aMaxSelfProgress,
+ curTotalProgress: aCurTotalProgress,
+ maxTotalProgress: aMaxTotalProgress,
+ });
+ },
+
+ onLocationChange(aWebProgress, aRequest, aLocation, aFlags) {},
+ onStatusChange(aWebProgress, aRequest, aStatus, aMessage) {},
+ onSecurityChange(aWebProgress, aRequest, aState) {},
+}
+Printing.init();
+
+function SwitchDocumentDirection(aWindow) {
+ // document.dir can also be "auto", in which case it won't change
+ if (aWindow.document.dir == "ltr" || aWindow.document.dir == "") {
+ aWindow.document.dir = "rtl";
+ } else if (aWindow.document.dir == "rtl") {
+ aWindow.document.dir = "ltr";
+ }
+ for (let run = 0; run < aWindow.frames.length; run++) {
+ SwitchDocumentDirection(aWindow.frames[run]);
+ }
+}
+
+addMessageListener("SwitchDocumentDirection", () => {
+ SwitchDocumentDirection(content.window);
+});
+
+var FindBar = {
+ /* Please keep in sync with toolkit/content/widgets/findbar.xml */
+ FIND_NORMAL: 0,
+ FIND_TYPEAHEAD: 1,
+ FIND_LINKS: 2,
+
+ _findMode: 0,
+
+ init() {
+ addMessageListener("Findbar:UpdateState", this);
+ Services.els.addSystemEventListener(global, "keypress", this, false);
+ Services.els.addSystemEventListener(global, "mouseup", this, false);
+ },
+
+ receiveMessage(msg) {
+ switch (msg.name) {
+ case "Findbar:UpdateState":
+ this._findMode = msg.data.findMode;
+ break;
+ }
+ },
+
+ handleEvent(event) {
+ switch (event.type) {
+ case "keypress":
+ this._onKeypress(event);
+ break;
+ case "mouseup":
+ this._onMouseup(event);
+ break;
+ }
+ },
+
+ /**
+ * Returns whether FAYT can be used for the given event in
+ * the current content state.
+ */
+ _canAndShouldFastFind() {
+ let should = false;
+ let can = BrowserUtils.canFastFind(content);
+ if (can) {
+ // XXXgijs: why all these shenanigans? Why not use the event's target?
+ let focusedWindow = {};
+ let elt = Services.focus.getFocusedElementForWindow(content, true, focusedWindow);
+ let win = focusedWindow.value;
+ should = BrowserUtils.shouldFastFind(elt, win);
+ }
+ return { can, should }
+ },
+
+ _onKeypress(event) {
+ // Useless keys:
+ if (event.ctrlKey || event.altKey || event.metaKey || event.defaultPrevented) {
+ return undefined;
+ }
+
+ // Check the focused element etc.
+ let fastFind = this._canAndShouldFastFind();
+
+ // Can we even use find in this page at all?
+ if (!fastFind.can) {
+ return undefined;
+ }
+
+ let fakeEvent = {};
+ for (let k in event) {
+ if (typeof event[k] != "object" && typeof event[k] != "function" &&
+ !(k in content.KeyboardEvent)) {
+ fakeEvent[k] = event[k];
+ }
+ }
+ // sendSyncMessage returns an array of the responses from all listeners
+ let rv = sendSyncMessage("Findbar:Keypress", {
+ fakeEvent: fakeEvent,
+ shouldFastFind: fastFind.should
+ });
+ if (rv.indexOf(false) !== -1) {
+ event.preventDefault();
+ return false;
+ }
+ return undefined;
+ },
+
+ _onMouseup(event) {
+ if (this._findMode != this.FIND_NORMAL)
+ sendAsyncMessage("Findbar:Mouseup");
+ },
+};
+FindBar.init();
+
+let WebChannelMessageToChromeListener = {
+ // Preference containing the list (space separated) of origins that are
+ // allowed to send non-string values through a WebChannel, mainly for
+ // backwards compatability. See bug 1238128 for more information.
+ URL_WHITELIST_PREF: "webchannel.allowObject.urlWhitelist",
+
+ // Cached list of whitelisted principals, we avoid constructing this if the
+ // value in `_lastWhitelistValue` hasn't changed since we constructed it last.
+ _cachedWhitelist: [],
+ _lastWhitelistValue: "",
+
+ init() {
+ addEventListener("WebChannelMessageToChrome", e => {
+ this._onMessageToChrome(e);
+ }, true, true);
+ },
+
+ _getWhitelistedPrincipals() {
+ let whitelist = Services.prefs.getCharPref(this.URL_WHITELIST_PREF);
+ if (whitelist != this._lastWhitelistValue) {
+ let urls = whitelist.split(/\s+/);
+ this._cachedWhitelist = urls.map(origin =>
+ Services.scriptSecurityManager.createCodebasePrincipalFromOrigin(origin));
+ }
+ return this._cachedWhitelist;
+ },
+
+ _onMessageToChrome(e) {
+ // If target is window then we want the document principal, otherwise fallback to target itself.
+ let principal = e.target.nodePrincipal ? e.target.nodePrincipal : e.target.document.nodePrincipal;
+
+ if (e.detail) {
+ if (typeof e.detail != 'string') {
+ // Check if the principal is one of the ones that's allowed to send
+ // non-string values for e.detail.
+ let objectsAllowed = this._getWhitelistedPrincipals().some(whitelisted =>
+ principal.originNoSuffix == whitelisted.originNoSuffix);
+ if (!objectsAllowed) {
+ Cu.reportError("WebChannelMessageToChrome sent with an object from a non-whitelisted principal");
+ return;
+ }
+ }
+ sendAsyncMessage("WebChannelMessageToChrome", e.detail, { eventTarget: e.target }, principal);
+ } else {
+ Cu.reportError("WebChannel message failed. No message detail.");
+ }
+ }
+};
+
+WebChannelMessageToChromeListener.init();
+
+// This should be kept in sync with /browser/base/content.js.
+// Add message listener for "WebChannelMessageToContent" messages from chrome scripts.
+addMessageListener("WebChannelMessageToContent", function (e) {
+ if (e.data) {
+ // e.objects.eventTarget will be defined if sending a response to
+ // a WebChannelMessageToChrome event. An unsolicited send
+ // may not have an eventTarget defined, in this case send to the
+ // main content window.
+ let eventTarget = e.objects.eventTarget || content;
+
+ // Use nodePrincipal if available, otherwise fallback to document principal.
+ let targetPrincipal = eventTarget instanceof Ci.nsIDOMWindow ? eventTarget.document.nodePrincipal : eventTarget.nodePrincipal;
+
+ if (e.principal.subsumes(targetPrincipal)) {
+ // If eventTarget is a window, use it as the targetWindow, otherwise
+ // find the window that owns the eventTarget.
+ let targetWindow = eventTarget instanceof Ci.nsIDOMWindow ? eventTarget : eventTarget.ownerDocument.defaultView;
+
+ eventTarget.dispatchEvent(new targetWindow.CustomEvent("WebChannelMessageToContent", {
+ detail: Cu.cloneInto({
+ id: e.data.id,
+ message: e.data.message,
+ }, targetWindow),
+ }));
+ } else {
+ Cu.reportError("WebChannel message failed. Principal mismatch.");
+ }
+ } else {
+ Cu.reportError("WebChannel message failed. No message data.");
+ }
+});
+
+var AudioPlaybackListener = {
+ QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver]),
+
+ init() {
+ Services.obs.addObserver(this, "audio-playback", false);
+ Services.obs.addObserver(this, "AudioFocusChanged", false);
+ Services.obs.addObserver(this, "MediaControl", false);
+
+ addMessageListener("AudioPlayback", this);
+ addEventListener("unload", () => {
+ AudioPlaybackListener.uninit();
+ });
+ },
+
+ uninit() {
+ Services.obs.removeObserver(this, "audio-playback");
+ Services.obs.removeObserver(this, "AudioFocusChanged");
+ Services.obs.removeObserver(this, "MediaControl");
+
+ removeMessageListener("AudioPlayback", this);
+ },
+
+ handleMediaControlMessage(msg) {
+ let utils = global.content.QueryInterface(Ci.nsIInterfaceRequestor)
+ .getInterface(Ci.nsIDOMWindowUtils);
+ let suspendTypes = Ci.nsISuspendedTypes;
+ switch (msg) {
+ case "mute":
+ utils.audioMuted = true;
+ break;
+ case "unmute":
+ utils.audioMuted = false;
+ break;
+ case "lostAudioFocus":
+ utils.mediaSuspend = suspendTypes.SUSPENDED_PAUSE_DISPOSABLE;
+ break;
+ case "lostAudioFocusTransiently":
+ utils.mediaSuspend = suspendTypes.SUSPENDED_PAUSE;
+ break;
+ case "gainAudioFocus":
+ utils.mediaSuspend = suspendTypes.NONE_SUSPENDED;
+ break;
+ case "mediaControlPaused":
+ utils.mediaSuspend = suspendTypes.SUSPENDED_PAUSE_DISPOSABLE;
+ break;
+ case "mediaControlStopped":
+ utils.mediaSuspend = suspendTypes.SUSPENDED_STOP_DISPOSABLE;
+ break;
+ case "blockInactivePageMedia":
+ utils.mediaSuspend = suspendTypes.SUSPENDED_BLOCK;
+ break;
+ case "resumeMedia":
+ utils.mediaSuspend = suspendTypes.NONE_SUSPENDED;
+ break;
+ default:
+ dump("Error : wrong media control msg!\n");
+ break;
+ }
+ },
+
+ observe(subject, topic, data) {
+ if (topic === "audio-playback") {
+ if (subject && subject.top == global.content) {
+ let name = "AudioPlayback:";
+ if (data === "block") {
+ name += "Block";
+ } else {
+ name += (data === "active") ? "Start" : "Stop";
+ }
+ sendAsyncMessage(name);
+ }
+ } else if (topic == "AudioFocusChanged" || topic == "MediaControl") {
+ this.handleMediaControlMessage(data);
+ }
+ },
+
+ receiveMessage(msg) {
+ if (msg.name == "AudioPlayback") {
+ this.handleMediaControlMessage(msg.data.type);
+ }
+ },
+};
+AudioPlaybackListener.init();
+
+addMessageListener("Browser:PurgeSessionHistory", function BrowserPurgeHistory() {
+ let sessionHistory = docShell.QueryInterface(Ci.nsIWebNavigation).sessionHistory;
+ if (!sessionHistory) {
+ return;
+ }
+
+ // place the entry at current index at the end of the history list, so it won't get removed
+ if (sessionHistory.index < sessionHistory.count - 1) {
+ let indexEntry = sessionHistory.getEntryAtIndex(sessionHistory.index, false);
+ sessionHistory.QueryInterface(Components.interfaces.nsISHistoryInternal);
+ indexEntry.QueryInterface(Components.interfaces.nsISHEntry);
+ sessionHistory.addEntry(indexEntry, true);
+ }
+
+ let purge = sessionHistory.count;
+ if (global.content.location.href != "about:blank") {
+ --purge; // Don't remove the page the user's staring at from shistory
+ }
+
+ if (purge > 0) {
+ sessionHistory.PurgeHistory(purge);
+ }
+});
+
+var ViewSelectionSource = {
+ init: function () {
+ addMessageListener("ViewSource:GetSelection", this);
+ },
+
+ receiveMessage: function(message) {
+ if (message.name == "ViewSource:GetSelection") {
+ let selectionDetails;
+ try {
+ selectionDetails = message.objects.target ? this.getMathMLSelection(message.objects.target)
+ : this.getSelection();
+ } finally {
+ sendAsyncMessage("ViewSource:GetSelectionDone", selectionDetails);
+ }
+ }
+ },
+
+ /**
+ * A helper to get a path like FIXptr, but with an array instead of the
+ * "tumbler" notation.
+ * See FIXptr: http://lists.w3.org/Archives/Public/www-xml-linking-comments/2001AprJun/att-0074/01-NOTE-FIXptr-20010425.htm
+ */
+ getPath: function(ancestor, node) {
+ var n = node;
+ var p = n.parentNode;
+ if (n == ancestor || !p)
+ return null;
+ var path = new Array();
+ if (!path)
+ return null;
+ do {
+ for (var i = 0; i < p.childNodes.length; i++) {
+ if (p.childNodes.item(i) == n) {
+ path.push(i);
+ break;
+ }
+ }
+ n = p;
+ p = n.parentNode;
+ } while (n != ancestor && p);
+ return path;
+ },
+
+ getSelection: function () {
+ // These are markers used to delimit the selection during processing. They
+ // are removed from the final rendering.
+ // We use noncharacter Unicode codepoints to minimize the risk of clashing
+ // with anything that might legitimately be present in the document.
+ // U+FDD0..FDEF <noncharacters>
+ const MARK_SELECTION_START = "\uFDD0";
+ const MARK_SELECTION_END = "\uFDEF";
+
+ var focusedWindow = Services.focus.focusedWindow || content;
+ var selection = focusedWindow.getSelection();
+
+ var range = selection.getRangeAt(0);
+ var ancestorContainer = range.commonAncestorContainer;
+ var doc = ancestorContainer.ownerDocument;
+
+ var startContainer = range.startContainer;
+ var endContainer = range.endContainer;
+ var startOffset = range.startOffset;
+ var endOffset = range.endOffset;
+
+ // let the ancestor be an element
+ var Node = doc.defaultView.Node;
+ if (ancestorContainer.nodeType == Node.TEXT_NODE ||
+ ancestorContainer.nodeType == Node.CDATA_SECTION_NODE)
+ ancestorContainer = ancestorContainer.parentNode;
+
+ // for selectAll, let's use the entire document, including <html>...</html>
+ // @see nsDocumentViewer::SelectAll() for how selectAll is implemented
+ try {
+ if (ancestorContainer == doc.body)
+ ancestorContainer = doc.documentElement;
+ } catch (e) { }
+
+ // each path is a "child sequence" (a.k.a. "tumbler") that
+ // descends from the ancestor down to the boundary point
+ var startPath = this.getPath(ancestorContainer, startContainer);
+ var endPath = this.getPath(ancestorContainer, endContainer);
+
+ // clone the fragment of interest and reset everything to be relative to it
+ // note: it is with the clone that we operate/munge from now on. Also note
+ // that we clone into a data document to prevent images in the fragment from
+ // loading and the like. The use of importNode here, as opposed to adoptNode,
+ // is _very_ important.
+ // XXXbz wish there were a less hacky way to create an untrusted document here
+ var isHTML = (doc.createElement("div").tagName == "DIV");
+ var dataDoc = isHTML ?
+ ancestorContainer.ownerDocument.implementation.createHTMLDocument("") :
+ ancestorContainer.ownerDocument.implementation.createDocument("", "", null);
+ ancestorContainer = dataDoc.importNode(ancestorContainer, true);
+ startContainer = ancestorContainer;
+ endContainer = ancestorContainer;
+
+ // Only bother with the selection if it can be remapped. Don't mess with
+ // leaf elements (such as <isindex>) that secretly use anynomous content
+ // for their display appearance.
+ var canDrawSelection = ancestorContainer.hasChildNodes();
+ var tmpNode;
+ if (canDrawSelection) {
+ var i;
+ for (i = startPath ? startPath.length-1 : -1; i >= 0; i--) {
+ startContainer = startContainer.childNodes.item(startPath[i]);
+ }
+ for (i = endPath ? endPath.length-1 : -1; i >= 0; i--) {
+ endContainer = endContainer.childNodes.item(endPath[i]);
+ }
+
+ // add special markers to record the extent of the selection
+ // note: |startOffset| and |endOffset| are interpreted either as
+ // offsets in the text data or as child indices (see the Range spec)
+ // (here, munging the end point first to keep the start point safe...)
+ if (endContainer.nodeType == Node.TEXT_NODE ||
+ endContainer.nodeType == Node.CDATA_SECTION_NODE) {
+ // do some extra tweaks to try to avoid the view-source output to look like
+ // ...<tag>]... or ...]</tag>... (where ']' marks the end of the selection).
+ // To get a neat output, the idea here is to remap the end point from:
+ // 1. ...<tag>]... to ...]<tag>...
+ // 2. ...]</tag>... to ...</tag>]...
+ if ((endOffset > 0 && endOffset < endContainer.data.length) ||
+ !endContainer.parentNode || !endContainer.parentNode.parentNode)
+ endContainer.insertData(endOffset, MARK_SELECTION_END);
+ else {
+ tmpNode = dataDoc.createTextNode(MARK_SELECTION_END);
+ endContainer = endContainer.parentNode;
+ if (endOffset === 0)
+ endContainer.parentNode.insertBefore(tmpNode, endContainer);
+ else
+ endContainer.parentNode.insertBefore(tmpNode, endContainer.nextSibling);
+ }
+ }
+ else {
+ tmpNode = dataDoc.createTextNode(MARK_SELECTION_END);
+ endContainer.insertBefore(tmpNode, endContainer.childNodes.item(endOffset));
+ }
+
+ if (startContainer.nodeType == Node.TEXT_NODE ||
+ startContainer.nodeType == Node.CDATA_SECTION_NODE) {
+ // do some extra tweaks to try to avoid the view-source output to look like
+ // ...<tag>[... or ...[</tag>... (where '[' marks the start of the selection).
+ // To get a neat output, the idea here is to remap the start point from:
+ // 1. ...<tag>[... to ...[<tag>...
+ // 2. ...[</tag>... to ...</tag>[...
+ if ((startOffset > 0 && startOffset < startContainer.data.length) ||
+ !startContainer.parentNode || !startContainer.parentNode.parentNode ||
+ startContainer != startContainer.parentNode.lastChild)
+ startContainer.insertData(startOffset, MARK_SELECTION_START);
+ else {
+ tmpNode = dataDoc.createTextNode(MARK_SELECTION_START);
+ startContainer = startContainer.parentNode;
+ if (startOffset === 0)
+ startContainer.parentNode.insertBefore(tmpNode, startContainer);
+ else
+ startContainer.parentNode.insertBefore(tmpNode, startContainer.nextSibling);
+ }
+ }
+ else {
+ tmpNode = dataDoc.createTextNode(MARK_SELECTION_START);
+ startContainer.insertBefore(tmpNode, startContainer.childNodes.item(startOffset));
+ }
+ }
+
+ // now extract and display the syntax highlighted source
+ tmpNode = dataDoc.createElementNS("http://www.w3.org/1999/xhtml", "div");
+ tmpNode.appendChild(ancestorContainer);
+
+ return { uri: (isHTML ? "view-source:data:text/html;charset=utf-8," :
+ "view-source:data:application/xml;charset=utf-8,")
+ + encodeURIComponent(tmpNode.innerHTML),
+ drawSelection: canDrawSelection,
+ baseURI: doc.baseURI };
+ },
+
+ /**
+ * Reformat the source of a MathML node to highlight the node that was targetted.
+ *
+ * @param node
+ * Some element within the fragment of interest.
+ */
+ getMathMLSelection: function(node) {
+ var Node = node.ownerDocument.defaultView.Node;
+ this._lineCount = 0;
+ this._startTargetLine = 0;
+ this._endTargetLine = 0;
+ this._targetNode = node;
+ if (this._targetNode && this._targetNode.nodeType == Node.TEXT_NODE)
+ this._targetNode = this._targetNode.parentNode;
+
+ // walk up the tree to the top-level element (e.g., <math>, <svg>)
+ var topTag = "math";
+ var topNode = this._targetNode;
+ while (topNode && topNode.localName != topTag) {
+ topNode = topNode.parentNode;
+ }
+ if (!topNode)
+ return undefined;
+
+ // serialize
+ const VIEW_SOURCE_CSS = "resource://gre-resources/viewsource.css";
+ const BUNDLE_URL = "chrome://global/locale/viewSource.properties";
+
+ let bundle = Services.strings.createBundle(BUNDLE_URL);
+ var title = bundle.GetStringFromName("viewMathMLSourceTitle");
+ var wrapClass = this.wrapLongLines ? ' class="wrap"' : '';
+ var source =
+ '<!DOCTYPE html>'
+ + '<html>'
+ + '<head><title>' + title + '</title>'
+ + '<link rel="stylesheet" type="text/css" href="' + VIEW_SOURCE_CSS + '">'
+ + '<style type="text/css">'
+ + '#target { border: dashed 1px; background-color: lightyellow; }'
+ + '</style>'
+ + '</head>'
+ + '<body id="viewsource"' + wrapClass
+ + ' onload="document.title=\''+title+'\'; document.getElementById(\'target\').scrollIntoView(true)">'
+ + '<pre>'
+ + this.getOuterMarkup(topNode, 0)
+ + '</pre></body></html>'
+ ; // end
+
+ return { uri: "data:text/html;charset=utf-8," + encodeURIComponent(source),
+ drawSelection: false, baseURI: node.ownerDocument.baseURI };
+ },
+
+ get wrapLongLines() {
+ return Services.prefs.getBoolPref("view_source.wrap_long_lines");
+ },
+
+ getInnerMarkup: function(node, indent) {
+ var str = '';
+ for (var i = 0; i < node.childNodes.length; i++) {
+ str += this.getOuterMarkup(node.childNodes.item(i), indent);
+ }
+ return str;
+ },
+
+ getOuterMarkup: function(node, indent) {
+ var Node = node.ownerDocument.defaultView.Node;
+ var newline = "";
+ var padding = "";
+ var str = "";
+ if (node == this._targetNode) {
+ this._startTargetLine = this._lineCount;
+ str += '</pre><pre id="target">';
+ }
+
+ switch (node.nodeType) {
+ case Node.ELEMENT_NODE: // Element
+ // to avoid the wide gap problem, '\n' is not emitted on the first
+ // line and the lines before & after the <pre id="target">...</pre>
+ if (this._lineCount > 0 &&
+ this._lineCount != this._startTargetLine &&
+ this._lineCount != this._endTargetLine) {
+ newline = "\n";
+ }
+ this._lineCount++;
+ for (var k = 0; k < indent; k++) {
+ padding += " ";
+ }
+ str += newline + padding
+ + '&lt;<span class="start-tag">' + node.nodeName + '</span>';
+ for (var i = 0; i < node.attributes.length; i++) {
+ var attr = node.attributes.item(i);
+ if (attr.nodeName.match(/^[-_]moz/)) {
+ continue;
+ }
+ str += ' <span class="attribute-name">'
+ + attr.nodeName
+ + '</span>=<span class="attribute-value">"'
+ + this.unicodeToEntity(attr.nodeValue)
+ + '"</span>';
+ }
+ if (!node.hasChildNodes()) {
+ str += "/&gt;";
+ }
+ else {
+ str += "&gt;";
+ var oldLine = this._lineCount;
+ str += this.getInnerMarkup(node, indent + 2);
+ if (oldLine == this._lineCount) {
+ newline = "";
+ padding = "";
+ }
+ else {
+ newline = (this._lineCount == this._endTargetLine) ? "" : "\n";
+ this._lineCount++;
+ }
+ str += newline + padding
+ + '&lt;/<span class="end-tag">' + node.nodeName + '</span>&gt;';
+ }
+ break;
+ case Node.TEXT_NODE: // Text
+ var tmp = node.nodeValue;
+ tmp = tmp.replace(/(\n|\r|\t)+/g, " ");
+ tmp = tmp.replace(/^ +/, "");
+ tmp = tmp.replace(/ +$/, "");
+ if (tmp.length != 0) {
+ str += '<span class="text">' + this.unicodeToEntity(tmp) + '</span>';
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (node == this._targetNode) {
+ this._endTargetLine = this._lineCount;
+ str += '</pre><pre>';
+ }
+ return str;
+ },
+
+ unicodeToEntity: function(text) {
+ const charTable = {
+ '&': '&amp;<span class="entity">amp;</span>',
+ '<': '&amp;<span class="entity">lt;</span>',
+ '>': '&amp;<span class="entity">gt;</span>',
+ '"': '&amp;<span class="entity">quot;</span>'
+ };
+
+ function charTableLookup(letter) {
+ return charTable[letter];
+ }
+
+ function convertEntity(letter) {
+ try {
+ var unichar = this._entityConverter
+ .ConvertToEntity(letter, entityVersion);
+ var entity = unichar.substring(1); // extract '&'
+ return '&amp;<span class="entity">' + entity + '</span>';
+ } catch (ex) {
+ return letter;
+ }
+ }
+
+ if (!this._entityConverter) {
+ try {
+ this._entityConverter = Cc["@mozilla.org/intl/entityconverter;1"]
+ .createInstance(Ci.nsIEntityConverter);
+ } catch (e) { }
+ }
+
+ const entityVersion = Ci.nsIEntityConverter.entityW3C;
+
+ var str = text;
+
+ // replace chars in our charTable
+ str = str.replace(/[<>&"]/g, charTableLookup);
+
+ // replace chars > 0x7f via nsIEntityConverter
+ str = str.replace(/[^\0-\u007f]/g, convertEntity);
+
+ return str;
+ }
+};
+
+ViewSelectionSource.init();
+
+addEventListener("MozApplicationManifest", function(e) {
+ let doc = e.target;
+ let info = {
+ uri: doc.documentURI,
+ characterSet: doc.characterSet,
+ manifest: doc.documentElement.getAttribute("manifest"),
+ principal: doc.nodePrincipal,
+ };
+ sendAsyncMessage("MozApplicationManifest", info);
+}, false);
+
+let AutoCompletePopup = {
+ QueryInterface: XPCOMUtils.generateQI([Ci.nsIAutoCompletePopup]),
+
+ _connected: false,
+
+ MESSAGES: [
+ "FormAutoComplete:HandleEnter",
+ "FormAutoComplete:PopupClosed",
+ "FormAutoComplete:PopupOpened",
+ "FormAutoComplete:RequestFocus",
+ ],
+
+ init: function() {
+ addEventListener("unload", this);
+ addEventListener("DOMContentLoaded", this);
+
+ for (let messageName of this.MESSAGES) {
+ addMessageListener(messageName, this);
+ }
+
+ this._input = null;
+ this._popupOpen = false;
+ },
+
+ destroy: function() {
+ if (this._connected) {
+ let controller = Cc["@mozilla.org/satchel/form-fill-controller;1"]
+ .getService(Ci.nsIFormFillController);
+ controller.detachFromBrowser(docShell);
+ this._connected = false;
+ }
+
+ removeEventListener("unload", this);
+ removeEventListener("DOMContentLoaded", this);
+
+ for (let messageName of this.MESSAGES) {
+ removeMessageListener(messageName, this);
+ }
+ },
+
+ handleEvent(event) {
+ switch (event.type) {
+ case "DOMContentLoaded": {
+ removeEventListener("DOMContentLoaded", this);
+
+ // We need to wait for a content viewer to be available
+ // before we can attach our AutoCompletePopup handler,
+ // since nsFormFillController assumes one will exist
+ // when we call attachToBrowser.
+
+ // Hook up the form fill autocomplete controller.
+ let controller = Cc["@mozilla.org/satchel/form-fill-controller;1"]
+ .getService(Ci.nsIFormFillController);
+ controller.attachToBrowser(docShell,
+ this.QueryInterface(Ci.nsIAutoCompletePopup));
+ this._connected = true;
+ break;
+ }
+
+ case "unload": {
+ this.destroy();
+ break;
+ }
+ }
+ },
+
+ receiveMessage(message) {
+ switch (message.name) {
+ case "FormAutoComplete:HandleEnter": {
+ this.selectedIndex = message.data.selectedIndex;
+
+ let controller = Cc["@mozilla.org/autocomplete/controller;1"]
+ .getService(Ci.nsIAutoCompleteController);
+ controller.handleEnter(message.data.isPopupSelection);
+ break;
+ }
+
+ case "FormAutoComplete:PopupClosed": {
+ this._popupOpen = false;
+ break;
+ }
+
+ case "FormAutoComplete:PopupOpened": {
+ this._popupOpen = true;
+ break;
+ }
+
+ case "FormAutoComplete:RequestFocus": {
+ if (this._input) {
+ this._input.focus();
+ }
+ break;
+ }
+ }
+ },
+
+ get input () { return this._input; },
+ get overrideValue () { return null; },
+ set selectedIndex (index) {
+ sendAsyncMessage("FormAutoComplete:SetSelectedIndex", { index });
+ },
+ get selectedIndex () {
+ // selectedIndex getter must be synchronous because we need the
+ // correct value when the controller is in controller::HandleEnter.
+ // We can't easily just let the parent inform us the new value every
+ // time it changes because not every action that can change the
+ // selectedIndex is trivial to catch (e.g. moving the mouse over the
+ // list).
+ return sendSyncMessage("FormAutoComplete:GetSelectedIndex", {});
+ },
+ get popupOpen () {
+ return this._popupOpen;
+ },
+
+ openAutocompletePopup: function (input, element) {
+ if (this._popupOpen || !input) {
+ return;
+ }
+
+ let rect = BrowserUtils.getElementBoundingScreenRect(element);
+ let window = element.ownerDocument.defaultView;
+ let dir = window.getComputedStyle(element).direction;
+ let results = this.getResultsFromController(input);
+
+ sendAsyncMessage("FormAutoComplete:MaybeOpenPopup",
+ { results, rect, dir });
+ this._input = input;
+ },
+
+ closePopup: function () {
+ // We set this here instead of just waiting for the
+ // PopupClosed message to do it so that we don't end
+ // up in a state where the content thinks that a popup
+ // is open when it isn't (or soon won't be).
+ this._popupOpen = false;
+ sendAsyncMessage("FormAutoComplete:ClosePopup", {});
+ },
+
+ invalidate: function () {
+ if (this._popupOpen) {
+ let results = this.getResultsFromController(this._input);
+ sendAsyncMessage("FormAutoComplete:Invalidate", { results });
+ }
+ },
+
+ selectBy: function(reverse, page) {
+ this._index = sendSyncMessage("FormAutoComplete:SelectBy", {
+ reverse: reverse,
+ page: page
+ });
+ },
+
+ getResultsFromController(inputField) {
+ let results = [];
+
+ if (!inputField) {
+ return results;
+ }
+
+ let controller = inputField.controller;
+ if (!(controller instanceof Ci.nsIAutoCompleteController)) {
+ return results;
+ }
+
+ for (let i = 0; i < controller.matchCount; ++i) {
+ let result = {};
+ result.value = controller.getValueAt(i);
+ result.label = controller.getLabelAt(i);
+ result.comment = controller.getCommentAt(i);
+ result.style = controller.getStyleAt(i);
+ result.image = controller.getImageAt(i);
+ results.push(result);
+ }
+
+ return results;
+ },
+}
+
+AutoCompletePopup.init();
+
+/**
+ * DateTimePickerListener is the communication channel between the input box
+ * (content) for date/time input types and its picker (chrome).
+ */
+let DateTimePickerListener = {
+ /**
+ * On init, just listen for the event to open the picker, once the picker is
+ * opened, we'll listen for update and close events.
+ */
+ init: function() {
+ addEventListener("MozOpenDateTimePicker", this);
+ this._inputElement = null;
+
+ addEventListener("unload", () => {
+ this.uninit();
+ });
+ },
+
+ uninit: function() {
+ removeEventListener("MozOpenDateTimePicker", this);
+ this._inputElement = null;
+ },
+
+ /**
+ * Cleanup function called when picker is closed.
+ */
+ close: function() {
+ this.removeListeners();
+ this._inputElement.setDateTimePickerState(false);
+ this._inputElement = null;
+ },
+
+ /**
+ * Called after picker is opened to start listening for input box update
+ * events.
+ */
+ addListeners: function() {
+ addEventListener("MozUpdateDateTimePicker", this);
+ addEventListener("MozCloseDateTimePicker", this);
+ addEventListener("pagehide", this);
+
+ addMessageListener("FormDateTime:PickerValueChanged", this);
+ addMessageListener("FormDateTime:PickerClosed", this);
+ },
+
+ /**
+ * Stop listeneing for events when picker is closed.
+ */
+ removeListeners: function() {
+ removeEventListener("MozUpdateDateTimePicker", this);
+ removeEventListener("MozCloseDateTimePicker", this);
+ removeEventListener("pagehide", this);
+
+ removeMessageListener("FormDateTime:PickerValueChanged", this);
+ removeMessageListener("FormDateTime:PickerClosed", this);
+ },
+
+ /**
+ * Helper function that returns the CSS direction property of the element.
+ */
+ getComputedDirection: function(aElement) {
+ return aElement.ownerDocument.defaultView.getComputedStyle(aElement)
+ .getPropertyValue("direction");
+ },
+
+ /**
+ * Helper function that returns the rect of the element, which is the position
+ * relative to the left/top of the content area.
+ */
+ getBoundingContentRect: function(aElement) {
+ return BrowserUtils.getElementBoundingRect(aElement);
+ },
+
+ getTimePickerPref: function() {
+ return Services.prefs.getBoolPref("dom.forms.datetime.timepicker");
+ },
+
+ /**
+ * nsIMessageListener.
+ */
+ receiveMessage: function(aMessage) {
+ switch (aMessage.name) {
+ case "FormDateTime:PickerClosed": {
+ this.close();
+ break;
+ }
+ case "FormDateTime:PickerValueChanged": {
+ this._inputElement.updateDateTimeInputBox(aMessage.data);
+ break;
+ }
+ default:
+ break;
+ }
+ },
+
+ /**
+ * nsIDOMEventListener, for chrome events sent by the input element and other
+ * DOM events.
+ */
+ handleEvent: function(aEvent) {
+ switch (aEvent.type) {
+ case "MozOpenDateTimePicker": {
+ // Time picker is disabled when preffed off
+ if (!(aEvent.originalTarget instanceof content.HTMLInputElement) ||
+ (aEvent.originalTarget.type == "time" && !this.getTimePickerPref())) {
+ return;
+ }
+ this._inputElement = aEvent.originalTarget;
+ this._inputElement.setDateTimePickerState(true);
+ this.addListeners();
+
+ let value = this._inputElement.getDateTimeInputBoxValue();
+ sendAsyncMessage("FormDateTime:OpenPicker", {
+ rect: this.getBoundingContentRect(this._inputElement),
+ dir: this.getComputedDirection(this._inputElement),
+ type: this._inputElement.type,
+ detail: {
+ // Pass partial value if it's available, otherwise pass input
+ // element's value.
+ value: Object.keys(value).length > 0 ? value
+ : this._inputElement.value,
+ step: this._inputElement.step,
+ min: this._inputElement.min,
+ max: this._inputElement.max,
+ },
+ });
+ break;
+ }
+ case "MozUpdateDateTimePicker": {
+ let value = this._inputElement.getDateTimeInputBoxValue();
+ sendAsyncMessage("FormDateTime:UpdatePicker", { value });
+ break;
+ }
+ case "MozCloseDateTimePicker": {
+ sendAsyncMessage("FormDateTime:ClosePicker");
+ this.close();
+ break;
+ }
+ case "pagehide": {
+ if (this._inputElement &&
+ this._inputElement.ownerDocument == aEvent.target) {
+ sendAsyncMessage("FormDateTime:ClosePicker");
+ this.close();
+ }
+ break;
+ }
+ default:
+ break;
+ }
+ },
+}
+
+DateTimePickerListener.init();
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-22 07:10:01 +0000