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Код Задачи Пакеты Проекты Релизы Вики Активность

Bug 1464552: Part 3 - Split print preview helpers into separate JSM. r=felipe 

MozReview-Commit-ID: 59Z0fZIf7Ym

--HG--
rename : toolkit/content/browser-content.js => toolkit/modules/PrintingContent.jsm
extra : rebase_source : f808b33b62efede347284952e46cd1564ddda296
This commit is contained in:
Kris Maglione 2018-05-25 18:22:09 -07:00
Родитель fafa2903e4
Коммит f28199fcc4
3 изменённых файлов: 434 добавлений и 400 удалений
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405
toolkit/content/browser-content.js
Просмотреть файл

@ -4,19 +4,20 @@
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* eslint-env mozilla/frame-script */
/* eslint no-unused-vars: ["error", {args: "none"}] */
/* global sendAsyncMessage */
ChromeUtils.import("resource://gre/modules/Services.jsm");
ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm");
ChromeUtils.defineModuleGetter(this, "ReaderMode",
"resource://gre/modules/ReaderMode.jsm");
ChromeUtils.defineModuleGetter(this, "BrowserUtils",
"resource://gre/modules/BrowserUtils.jsm");
ChromeUtils.defineModuleGetter(this, "SelectContentHelper",
"resource://gre/modules/SelectContentHelper.jsm");
ChromeUtils.defineModuleGetter(this, "FindContent",
"resource://gre/modules/FindContent.jsm");
ChromeUtils.defineModuleGetter(this, "PrintingContent",
"resource://gre/modules/PrintingContent.jsm");
ChromeUtils.defineModuleGetter(this, "RemoteFinder",
"resource://gre/modules/RemoteFinder.jsm");
@ -484,22 +485,7 @@ var PopupBlocking = {
};
PopupBlocking.init();
XPCOMUtils.defineLazyGetter(this, "console", () => {
// Set up console.* for frame scripts.
let Console = ChromeUtils.import("resource://gre/modules/Console.jsm", {});
return new Console.ConsoleAPI();
});
var Printing = {
// Bug 1088061: nsPrintJob'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: ChromeUtils.generateQI([Ci.nsIWebProgressListener,
Ci.nsIPrintingPromptService]),
MESSAGES: [
"Printing:Preview:Enter",
"Printing:Preview:Exit",
@ -514,394 +500,13 @@ var Printing = {
addEventListener("printPreviewUpdate", this, true);
},
get shouldSavePrintSettings() {
return Services.prefs.getBoolPref("print.use_global_printsettings") &&
Services.prefs.getBoolPref("print.save_print_settings");
},
printPreviewInitializingInfo: null,
handleEvent(event) {
switch (event.type) {
case "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,
});
break;
}
case "printPreviewUpdate": {
let info = this.printPreviewInitializingInfo;
if (!info) {
// If there is no printPreviewInitializingInfo then we did not
// initiate the preview so ignore this event.
return;
}
// Only send Printing:Preview:Entered message on first update, indicated
// by printPreviewInitializingInfo.entered not being set.
if (!info.entered) {
info.entered = true;
sendAsyncMessage("Printing:Preview:Entered", {
failed: false,
changingBrowsers: info.changingBrowsers
});
// If we have another request waiting, dispatch it now.
if (info.nextRequest) {
Services.tm.dispatchToMainThread(info.nextRequest);
}
}
// Always send page count update.
this.updatePageCount();
break;
}
}
return PrintingContent.handleEvent(global, event);
},
receiveMessage(message) {
let data = message.data;
switch (message.name) {
case "Printing:Preview:Enter": {
this.enterPrintPreview(Services.wm.getOuterWindowWithId(data.windowID), data.simplifiedMode, data.changingBrowsers, data.defaultPrinterName);
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:Print": {
this.print(Services.wm.getOuterWindowWithId(data.windowID), data.simplifiedMode, data.defaultPrinterName);
break;
}
}
return PrintingContent.receiveMessage(global, message);
},
getPrintSettings(defaultPrinterName) {
try {
let PSSVC = Cc["@mozilla.org/gfx/printsettings-service;1"]
.getService(Ci.nsIPrintSettingsService);
let printSettings = PSSVC.globalPrintSettings;
if (!printSettings.printerName) {
printSettings.printerName = 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) {
Cu.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(webProgress, req, flags, status) {
if (flags & Ci.nsIWebProgressListener.STATE_STOP) {
webProgress.removeProgressListener(webProgressListener);
let domUtils = contentWindow.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) {
let onPaint = function() {
removeEventListener("MozAfterPaint", onPaint);
sendAsyncMessage("Printing:Preview:ReaderModeReady");
};
contentWindow.addEventListener("MozAfterPaint", onPaint);
// This timer need when display list invalidation doesn't invalidate.
setTimeout(() => {
removeEventListener("MozAfterPaint", onPaint);
sendAsyncMessage("Printing:Preview:ReaderModeReady");
}, 100);
} else {
sendAsyncMessage("Printing:Preview:ReaderModeReady");
}
}
},
QueryInterface: ChromeUtils.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 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);
// Create link element referencing simplifyMode.css and append it to head
headStyleElement = content.document.createElement("link");
headStyleElement.setAttribute("rel", "stylesheet");
headStyleElement.setAttribute("href", "chrome://global/content/simplifyMode.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);
// Reader Mode might return null if there's a failure when parsing the document.
// We'll render the error message for the Simplify Page document when that happens.
if (article) {
// Set title of document
content.document.title = article.title;
// 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);
// 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);
// 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);
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";
} else {
let aboutReaderStrings = Services.strings.createBundle("chrome://global/locale/aboutReader.properties");
let errorMessage = aboutReaderStrings.GetStringFromName("aboutReader.loadError");
content.document.title = errorMessage;
// Create reader message div and append it to body
let readerMessageElement = content.document.createElement("div");
readerMessageElement.setAttribute("class", "reader-message");
readerMessageElement.textContent = errorMessage;
containerElement.appendChild(readerMessageElement);
// Display reader message element
readerMessageElement.style.display = "block";
}
});
},
enterPrintPreview(contentWindow, simplifiedMode, changingBrowsers, defaultPrinterName) {
try {
let printSettings = this.getPrintSettings(defaultPrinterName);
// 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;
// The print preview docshell will be in a different TabGroup, so
// printPreviewInitialize must be run in a separate runnable to avoid
// touching a different TabGroup in our own runnable.
let printPreviewInitialize = () => {
try {
this.printPreviewInitializingInfo = { changingBrowsers };
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.
Cu.reportError(error);
this.printPreviewInitializingInfo = null;
sendAsyncMessage("Printing:Preview:Entered", { failed: true });
}
};
// If printPreviewInitializingInfo.entered is not set we are still in the
// initial setup of a previous preview request. We delay this one until
// that has finished because running them at the same time will almost
// certainly cause failures.
if (this.printPreviewInitializingInfo &&
!this.printPreviewInitializingInfo.entered) {
this.printPreviewInitializingInfo.nextRequest = printPreviewInitialize;
} else {
Services.tm.dispatchToMainThread(printPreviewInitialize);
}
} 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.
Cu.reportError(error);
sendAsyncMessage("Printing:Preview:Entered", { failed: true });
}
},
exitPrintPreview() {
this.printPreviewInitializingInfo = null;
docShell.printPreview.exitPrintPreview();
},
print(contentWindow, simplifiedMode, defaultPrinterName) {
let printSettings = this.getPrintSettings(defaultPrinterName);
// 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,
});
},
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();

428
toolkit/modules/PrintingContent.jsm Normal file
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@ -0,0 +1,428 @@
/* -*- 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 EXPORTED_SYMBOLS = ["PrintingContent"];
ChromeUtils.import("resource://gre/modules/Services.jsm");
ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm");
ChromeUtils.defineModuleGetter(this, "ReaderMode",
"resource://gre/modules/ReaderMode.jsm");
var PrintingContent = {
// Bug 1088061: nsPrintJob'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: ChromeUtils.generateQI([Ci.nsIPrintingPromptService]),
get shouldSavePrintSettings() {
return Services.prefs.getBoolPref("print.use_global_printsettings") &&
Services.prefs.getBoolPref("print.save_print_settings");
},
printPreviewInitializingInfo: null,
handleEvent(global, event) {
switch (event.type) {
case "PrintingError": {
let win = event.target.defaultView;
let wbp = win.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIWebBrowserPrint);
let nsresult = event.detail;
global.sendAsyncMessage("Printing:Error", {
isPrinting: wbp.doingPrint,
nsresult,
});
break;
}
case "printPreviewUpdate": {
let info = this.printPreviewInitializingInfo;
if (!info) {
// If there is no printPreviewInitializingInfo then we did not
// initiate the preview so ignore this event.
return;
}
// Only send Printing:Preview:Entered message on first update, indicated
// by printPreviewInitializingInfo.entered not being set.
if (!info.entered) {
info.entered = true;
global.sendAsyncMessage("Printing:Preview:Entered", {
failed: false,
changingBrowsers: info.changingBrowsers
});
// If we have another request waiting, dispatch it now.
if (info.nextRequest) {
Services.tm.dispatchToMainThread(info.nextRequest);
}
}
// Always send page count update.
this.updatePageCount(global);
break;
}
}
},
receiveMessage(global, message) {
let data = message.data;
switch (message.name) {
case "Printing:Preview:Enter": {
this.enterPrintPreview(global,
Services.wm.getOuterWindowWithId(data.windowID),
data.simplifiedMode,
data.changingBrowsers,
data.defaultPrinterName);
break;
}
case "Printing:Preview:Exit": {
this.exitPrintPreview(global);
break;
}
case "Printing:Preview:Navigate": {
this.navigate(global, data.navType, data.pageNum);
break;
}
case "Printing:Preview:ParseDocument": {
this.parseDocument(global, data.URL, Services.wm.getOuterWindowWithId(data.windowID));
break;
}
case "Printing:Print": {
this.print(global,
Services.wm.getOuterWindowWithId(data.windowID),
data.simplifiedMode,
data.defaultPrinterName);
break;
}
}
},
getPrintSettings(defaultPrinterName) {
try {
let PSSVC = Cc["@mozilla.org/gfx/printsettings-service;1"]
.getService(Ci.nsIPrintSettingsService);
let printSettings = PSSVC.globalPrintSettings;
if (!printSettings.printerName) {
printSettings.printerName = 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) {
Cu.reportError(e);
}
return null;
},
parseDocument(global, 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(webProgress, req, flags, status) {
if (flags & Ci.nsIWebProgressListener.STATE_STOP) {
webProgress.removeProgressListener(webProgressListener);
let domUtils = contentWindow.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) {
let onPaint = function() {
global.removeEventListener("MozAfterPaint", onPaint);
global.sendAsyncMessage("Printing:Preview:ReaderModeReady");
};
contentWindow.addEventListener("MozAfterPaint", onPaint);
// This timer need when display list invalidation doesn't invalidate.
global.setTimeout(() => {
global.removeEventListener("MozAfterPaint", onPaint);
global.sendAsyncMessage("Printing:Preview:ReaderModeReady");
}, 100);
} else {
global.sendAsyncMessage("Printing:Preview:ReaderModeReady");
}
}
},
QueryInterface: ChromeUtils.generateQI([
Ci.nsIWebProgressListener,
Ci.nsISupportsWeakReference,
Ci.nsIObserver,
]),
};
const {content, docShell} = global;
// 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 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);
// Create link element referencing simplifyMode.css and append it to head
headStyleElement = content.document.createElement("link");
headStyleElement.setAttribute("rel", "stylesheet");
headStyleElement.setAttribute("href", "chrome://global/content/simplifyMode.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);
// Reader Mode might return null if there's a failure when parsing the document.
// We'll render the error message for the Simplify Page document when that happens.
if (article) {
// Set title of document
content.document.title = article.title;
// 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);
// 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);
// 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);
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";
} else {
let aboutReaderStrings = Services.strings.createBundle("chrome://global/locale/aboutReader.properties");
let errorMessage = aboutReaderStrings.GetStringFromName("aboutReader.loadError");
content.document.title = errorMessage;
// Create reader message div and append it to body
let readerMessageElement = content.document.createElement("div");
readerMessageElement.setAttribute("class", "reader-message");
readerMessageElement.textContent = errorMessage;
containerElement.appendChild(readerMessageElement);
// Display reader message element
readerMessageElement.style.display = "block";
}
});
},
enterPrintPreview(global, contentWindow, simplifiedMode, changingBrowsers, defaultPrinterName) {
const {docShell} = global;
try {
let printSettings = this.getPrintSettings(defaultPrinterName);
// 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;
// The print preview docshell will be in a different TabGroup, so
// printPreviewInitialize must be run in a separate runnable to avoid
// touching a different TabGroup in our own runnable.
let printPreviewInitialize = () => {
try {
let listener = new PrintingListener(global);
this.printPreviewInitializingInfo = { changingBrowsers };
docShell.printPreview.printPreview(printSettings, contentWindow, listener);
} 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.
Cu.reportError(error);
this.printPreviewInitializingInfo = null;
global.sendAsyncMessage("Printing:Preview:Entered", { failed: true });
}
};
// If printPreviewInitializingInfo.entered is not set we are still in the
// initial setup of a previous preview request. We delay this one until
// that has finished because running them at the same time will almost
// certainly cause failures.
if (this.printPreviewInitializingInfo &&
!this.printPreviewInitializingInfo.entered) {
this.printPreviewInitializingInfo.nextRequest = printPreviewInitialize;
} else {
Services.tm.dispatchToMainThread(printPreviewInitialize);
}
} 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.
Cu.reportError(error);
global.sendAsyncMessage("Printing:Preview:Entered", { failed: true });
}
},
exitPrintPreview(global) {
this.printPreviewInitializingInfo = null;
global.docShell.printPreview.exitPrintPreview();
},
print(global, contentWindow, simplifiedMode, defaultPrinterName) {
let printSettings = this.getPrintSettings(defaultPrinterName);
// 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}.`);
global.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(global) {
let numPages = global.docShell.printPreview.printPreviewNumPages;
global.sendAsyncMessage("Printing:Preview:UpdatePageCount", {
numPages,
});
},
navigate(global, navType, pageNum) {
global.docShell.printPreview.printPreviewNavigate(navType, pageNum);
},
};
function PrintingListener(global) {
this.global = global;
}
PrintingListener.prototype = {
QueryInterface: ChromeUtils.generateQI([Ci.nsIWebProgressListener]),
onStateChange(aWebProgress, aRequest, aStateFlags, aStatus) {
this.global.sendAsyncMessage("Printing:Preview:StateChange", {
stateFlags: aStateFlags,
status: aStatus,
});
},
onProgressChange(aWebProgress, aRequest, aCurSelfProgress,
aMaxSelfProgress, aCurTotalProgress,
aMaxTotalProgress) {
this.global.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) {},
};

1
toolkit/modules/moz.build
Просмотреть файл

@ -222,6 +222,7 @@ EXTRA_JS_MODULES += [
'PermissionsUtils.jsm',
'PopupNotifications.jsm',
'Preferences.jsm',
'PrintingContent.jsm',
'PrivateBrowsingUtils.jsm',
'ProfileAge.jsm',
'Promise-backend.js',