зеркало из https://github.com/mozilla/gecko-dev.git
Bug 1082575 - Make PrintUtils and printPreviewBindings.xml more e10s friendly. r=Mossop.
--HG-- extra : rebase_source : c26a2bb4b84cb8ce7bbbdf8dc3e05793cb118a3d
This commit is contained in:
Mike Conley
Родитель
5a3f94a71f
Коммит
6f3cd935e0
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@ -28,7 +28,7 @@
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oncommand="MailIntegration.sendLinkForWindow(window.content);"/>
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<command id="cmd_pageSetup" oncommand="PrintUtils.showPageSetup();"/>
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<command id="cmd_print" oncommand="PrintUtils.print();"/>
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<command id="cmd_print" oncommand="PrintUtils.print(window.gBrowser.selectedBrowser.contentWindowAsCPOW, window.gBrowser.selectedBrowser);"/>
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<command id="cmd_printPreview" oncommand="PrintUtils.printPreview(PrintPreviewListener);"/>
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<command id="cmd_close" oncommand="BrowserCloseTabOrWindow()"/>
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<command id="cmd_closeWindow" oncommand="BrowserTryToCloseWindow()"/>
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@ -1663,7 +1663,8 @@ function HandleAppCommandEvent(evt) {
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BrowserOpenFileWindow();
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break;
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case "Print":
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PrintUtils.print();
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PrintUtils.print(gBrowser.selectedBrowser.contentWindowAsCPOW,
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gBrowser.selectedBrowser);
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break;
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case "Save":
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saveDocument(window.content.document);
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@ -23,7 +23,7 @@
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<content>
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<xul:button label="&print.label;" accesskey="&print.accesskey;"
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oncommand="PrintUtils.print();" icon="print"/>
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oncommand="this.parentNode.print();" icon="print"/>
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<xul:button label="&pageSetup.label;" accesskey="&pageSetup.accesskey;"
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oncommand="this.parentNode.doPageSetup();"/>
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@ -93,7 +93,7 @@
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<xul:data value="&customPrompt.title;"/>
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</content>
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<implementation>
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<implementation implements="nsIMessageListener">
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<field name="mPrintButton">
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document.getAnonymousNodes(this)[0]
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</field>
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@ -125,16 +125,24 @@
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</field>
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<field name="mWebProgress">
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</field>
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<constructor>
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<![CDATA[
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var print = PrintUtils.getPrintPreview();
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this.mTotalPages.value = print.printPreviewNumPages;
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this.mPageTextBox.max = print.printPreviewNumPages;
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<field name="mPPBrowser">
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null
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</field>
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<field name="mMessageManager">
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null
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</field>
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this.updateToolbar();
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]]>
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</constructor>
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<method name="initialize">
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<parameter name="aPPBrowser"/>
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<body>
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<![CDATA[
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this.mPPBrowser = aPPBrowser;
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this.mMessageManager = aPPBrowser.messageManager;
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this.mMessageManager.addMessageListener("Printing:Preview:UpdatePageCount", this);
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this.updateToolbar();
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]]>
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</body>
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</method>
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<method name="doPageSetup">
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<body>
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@ -156,38 +164,47 @@
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<parameter name="aPageNum"/>
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<parameter name="aHomeOrEnd"/>
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<body>
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<![CDATA[
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var print = PrintUtils.getPrintPreview();
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<![CDATA[
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const nsIWebBrowserPrint = Components.interfaces.nsIWebBrowserPrint;
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let navType, pageNum;
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// we use only one of aHomeOrEnd, aDirection, or aPageNum
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if (aHomeOrEnd)
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{
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var homeOrEnd;
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if (aHomeOrEnd == "home")
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{
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homeOrEnd = print.PRINTPREVIEW_HOME;
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this.mPageTextBox.value = 1;
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if (aHomeOrEnd) {
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// We're going to either the very first page ("home"), or the
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// very last page ("end").
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if (aHomeOrEnd == "home") {
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navType = nsIWebBrowserPrint.PRINTPREVIEW_HOME;
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this.mPageTextBox.value = 1;
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} else {
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navType = nsIWebBrowserPrint.PRINTPREVIEW_END;
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this.mPageTextBox.value = this.mPageTextBox.max;
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}
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else
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{
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homeOrEnd = print.PRINTPREVIEW_END;
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this.mPageTextBox.value = print.printPreviewNumPages;
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}
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print.printPreviewNavigate(homeOrEnd, 0);
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}
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else if (aDirection)
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{
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pageNum = 0;
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} else if (aDirection) {
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// aDirection is either +1 or -1, and allows us to increment
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// or decrement our currently viewed page.
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this.mPageTextBox.valueNumber += aDirection;
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print.printPreviewNavigate(
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print.PRINTPREVIEW_GOTO_PAGENUM,
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this.mPageTextBox.valueNumber);
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}
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else
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{
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print.printPreviewNavigate(
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print.PRINTPREVIEW_GOTO_PAGENUM, aPageNum);
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navType = nsIWebBrowserPrint.PRINTPREVIEW_GOTO_PAGENUM;
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pageNum = this.mPageTextBox.value; // TODO: back to valueNumber?
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} else {
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// We're going to a specific page (aPageNum)
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navType = nsIWebBrowserPrint.PRINTPREVIEW_GOTO_PAGENUM;
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pageNum = aPageNum;
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}
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this.mMessageManager.sendAsyncMessage("Printing:Preview:Navigate", {
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navType: navType,
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pageNum: pageNum,
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});
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]]>
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</body>
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</method>
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<method name="print">
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<body>
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<![CDATA[
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let contentWindow = this.mPPBrowser.contentWindowAsCPOW;
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PrintUtils.print(contentWindow, this.mPPBrowser);
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]]>
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</body>
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</method>
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@ -290,7 +307,6 @@
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<method name="updateToolbar">
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<body>
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<![CDATA[
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var print = PrintUtils.getPrintPreview();
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var settings = PrintUtils.getPrintSettings();
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var isPortrait = settings.orientation == Components.interfaces.nsIPrintSettings.kPortraitOrientation;
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@ -304,9 +320,9 @@
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this.setScaleCombobox(settings.scaling);
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}
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this.mTotalPages.value = print.printPreviewNumPages;
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this.mPageTextBox.max = print.printPreviewNumPages;
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this.mPageTextBox.value = 1;
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this.mMessageManager.sendAsyncMessage("Printing:Preview:UpdatePageCount");
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]]>
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</body>
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</method>
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@ -320,6 +336,20 @@
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PSSVC.savePrintSettingsToPrefs(settings, true, flags);
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]]></body>
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</method>
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<!-- nsIMessageListener -->
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<method name="receiveMessage">
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<parameter name="message"/>
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<body>
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<![CDATA[
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if (message.name == "Printing:Preview:UpdatePageCount") {
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let numPages = message.data.numPages;
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this.mTotalPages.value = numPages;
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this.mPageTextBox.max = numPages;
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}
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]]>
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</body>
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</method>
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</implementation>
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</binding>
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@ -1,29 +1,93 @@
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// -*- tab-width: 2; indent-tabs-mode: nil; js-indent-level: 2 -*-
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/**
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* PrintUtils is a utility for front-end code to trigger common print
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* operations (printing, show print preview, show page settings).
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*
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* Unfortunately, likely due to inconsistencies in how different operating
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* systems do printing natively, our XPCOM-level printing interfaces
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* are a bit confusing and the method by which we do something basic
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* like printing a page is quite circuitous.
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*
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* To compound that, we need to support remote browsers, and that means
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* kicking off the print jobs in the content process. This means we send
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* messages back and forth to that process. browser-content.js contains
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* the object that listens and responds to the messages that PrintUtils
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* sends.
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*
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* PrintUtils sends messages at different points in its implementation, but
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* their documentation is consolidated here for ease-of-access.
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*
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*
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* Messages sent:
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*
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* Printing:Print
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* This message is sent to kick off a print job for a particular content
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* window (which is passed along with the message). We also pass print
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* settings with this message - though bug 1088070 will have us gather
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* those settings from the content process instead.
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*
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* Printing:Preview:Enter
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* This message is sent to put content into print preview mode. We pass
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* the content window of the browser we're showing the preview of, and
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* the target of the message is the browser that we'll be showing the
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* preview in. We also pass print settings in this message, but
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* bug 1088070 will have us gather those settings from the content process
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* instead.
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*
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* Printing:Preview:Exit
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* This message is sent to take content out of print preview mode.
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*
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*
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* Messages Received
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*
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* Printing:Preview:Entered
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* This message is sent by the content process once it has completed
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* putting the content into print preview mode. We must wait for that to
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* to complete before switching the chrome UI to print preview mode,
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* otherwise we have layout issues.
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*
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* Printing:Preview:StateChange, Printing:Preview:ProgressChange
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* Due to a timing issue resulting in a main-process crash, we have to
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* manually open the progress dialog for print preview. The progress
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* dialog is opened here in PrintUtils, and then we listen for update
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* messages from the child. Bug 1088061 has been filed to investigate
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* other solutions.
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*
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*/
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var gPrintSettingsAreGlobal = false;
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var gSavePrintSettings = false;
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var gFocusedElement = null;
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var PrintUtils = {
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bailOut: function () {
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let remote = window.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
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.getInterface(Components.interfaces.nsIWebNavigation)
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.QueryInterface(Components.interfaces.nsILoadContext)
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.useRemoteTabs;
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if (remote) {
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let pref = Components.classes["@mozilla.org/preferences-service;1"]
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.getService(Components.interfaces.nsIPrefBranch);
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let allow_for_testing = false;
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try {
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allow_for_testing = pref.getBoolPref("print.enable_e10s_testing");
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} catch(e) {
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// The pref wasn't set, so I guess we're not overriding.
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}
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if (this.usingRemoteTabs && !allow_for_testing) {
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alert("e10s printing is not implemented yet. Bug 927188.");
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return true;
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}
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return false;
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},
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showPageSetup: function ()
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{
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/**
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* Shows the page setup dialog, and saves any settings changed in
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* that dialog if print.save_print_settings is set to true.
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*
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* @return true on success, false on failure
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*/
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showPageSetup: function () {
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if (this.bailOut()) {
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return;
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}
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@ -45,102 +109,261 @@ var PrintUtils = {
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return true;
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},
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print: function (aWindow)
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/**
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* Starts printing the contents of aWindow.
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*
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* @param aWindow
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* An nsIDOMWindow to initiate the printing of. If the chrome window
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* is not running with remote tabs, this defaults to window.content if
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* omitted. If running with remote tabs, the caller must pass in the
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* content window to be printed. This function throws if that invariant
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* is violated.
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* @param aBrowser (optional for non-remote browsers)
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* The remote <xul:browser> that contains aWindow. This argument is
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* not necessary if aWindow came from a non-remote browser, but is
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* strictly required otherwise. This function will throw if aWindow
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* comes from a remote browser and aBrowser is not provided.
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*/
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print: function (aWindow, aBrowser)
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{
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if (this.bailOut()) {
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return;
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}
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var webBrowserPrint = this.getWebBrowserPrint(aWindow);
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var printSettings = this.getPrintSettings();
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try {
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webBrowserPrint.print(printSettings, null);
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if (gPrintSettingsAreGlobal && gSavePrintSettings) {
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var PSSVC = Components.classes["@mozilla.org/gfx/printsettings-service;1"]
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.getService(Components.interfaces.nsIPrintSettingsService);
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PSSVC.savePrintSettingsToPrefs(printSettings, true,
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printSettings.kInitSaveAll);
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PSSVC.savePrintSettingsToPrefs(printSettings, false,
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printSettings.kInitSavePrinterName);
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if (!aWindow) {
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// If we're using remote browsers, chances are that window.content will
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// not be defined.
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if (this.usingRemoteTabs) {
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throw new Error("Windows running with remote tabs must explicitly pass " +
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"a content window to PrintUtils.print.");
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}
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} catch (e) {
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// Pressing cancel is expressed as an NS_ERROR_ABORT return value,
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// causing an exception to be thrown which we catch here.
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// Unfortunately this will also consume helpful failures, so add a
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// dump("print: "+e+"\n"); // if you need to debug
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// Otherwise, we should have access to window.content.
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aWindow = window.content;
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}
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if (Cu.isCrossProcessWrapper(aWindow)) {
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if (!aBrowser) {
|
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throw new Error("PrintUtils.print expects a remote browser passed as " +
|
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"an argument if the content window is a CPOW.");
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}
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} else {
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// For content windows coming from non-remote browsers, the browser can
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// be resolved as the chromeEventHandler.
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aBrowser = aWindow.QueryInterface(Ci.nsIInterfaceRequestor)
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.getInterface(Ci.nsIWebNavigation)
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.QueryInterface(Ci.nsIDocShell)
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.chromeEventHandler;
|
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}
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|
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if (!aBrowser) {
|
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throw new Error("PrintUtils.print could not resolve content window " +
|
||||
"to a browser.");
|
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}
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let printSettings = this.getPrintSettings();
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let mm = aBrowser.messageManager;
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mm.sendAsyncMessage("Printing:Print", null, {
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printSettings: printSettings,
|
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contentWindow: aWindow,
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});
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},
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// If aCallback is not null, it must be an object which has the following methods:
|
||||
// getPrintPreviewBrowser(), getSourceBrowser(),
|
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// getNavToolbox(), onEnter() and onExit().
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// If aCallback is null, then printPreview must previously have been called with
|
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// non-null aCallback and that object will be reused.
|
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printPreview: function (aCallback)
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/**
|
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* Initializes print preview.
|
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*
|
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* @param aListenerObj
|
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* An object that defines the following functions:
|
||||
*
|
||||
* getPrintPreviewBrowser:
|
||||
* Returns the <xul:browser> to display the print preview in.
|
||||
*
|
||||
* getSourceBrowser:
|
||||
* Returns the <xul:browser> that contains the document being
|
||||
* printed.
|
||||
*
|
||||
* getNavToolbox:
|
||||
* Returns the primary toolbox for this window.
|
||||
*
|
||||
* onEnter:
|
||||
* Called upon entering print preview.
|
||||
*
|
||||
* onExit:
|
||||
* Called upon exiting print preview.
|
||||
*
|
||||
* These methods must be defined. printPreview can be called
|
||||
* with aListenerObj as null iff this window is already displaying
|
||||
* print preview (in which case, the previous aListenerObj passed
|
||||
* to it will be used).
|
||||
*/
|
||||
printPreview: function (aListenerObj)
|
||||
{
|
||||
if (this.bailOut()) {
|
||||
return;
|
||||
}
|
||||
// if we're already in PP mode, don't set the callback; chances
|
||||
// if we're already in PP mode, don't set the listener; chances
|
||||
// are it is null because someone is calling printPreview() to
|
||||
// get us to refresh the display.
|
||||
if (!document.getElementById("print-preview-toolbar")) {
|
||||
this._callback = aCallback;
|
||||
this._sourceBrowser = aCallback.getSourceBrowser();
|
||||
this._originalTitle = this._sourceBrowser.contentDocument.title;
|
||||
if (!this.inPrintPreview) {
|
||||
this._listener = aListenerObj;
|
||||
this._sourceBrowser = aListenerObj.getSourceBrowser();
|
||||
this._originalTitle = this._sourceBrowser.contentTitle;
|
||||
this._originalURL = this._sourceBrowser.currentURI.spec;
|
||||
} else {
|
||||
// collapse the browser here -- it will be shown in
|
||||
// enterPrintPreview; this forces a reflow which fixes display
|
||||
// issues in bug 267422.
|
||||
this._sourceBrowser = this._callback.getPrintPreviewBrowser();
|
||||
this._sourceBrowser = this._listener.getPrintPreviewBrowser();
|
||||
this._sourceBrowser.collapsed = true;
|
||||
}
|
||||
|
||||
this._webProgressPP = {};
|
||||
var ppParams = {};
|
||||
var notifyOnOpen = {};
|
||||
var webBrowserPrint = this.getWebBrowserPrint();
|
||||
var printSettings = this.getPrintSettings();
|
||||
let ppParams = {};
|
||||
let notifyOnOpen = {};
|
||||
let printSettings = this.getPrintSettings();
|
||||
// Here we get the PrintingPromptService so we can display the PP Progress from script
|
||||
// For the browser implemented via XUL with the PP toolbar we cannot let it be
|
||||
// automatically opened from the print engine because the XUL scrollbars in the PP window
|
||||
// will layout before the content window and a crash will occur.
|
||||
// Doing it all from script, means it lays out before hand and we can let printing do its own thing
|
||||
var PPROMPTSVC = Components.classes["@mozilla.org/embedcomp/printingprompt-service;1"]
|
||||
let PPROMPTSVC = Components.classes["@mozilla.org/embedcomp/printingprompt-service;1"]
|
||||
.getService(Components.interfaces.nsIPrintingPromptService);
|
||||
// just in case we are already printing,
|
||||
// an error code could be returned if the Prgress Dialog is already displayed
|
||||
// just in case we are already printing,
|
||||
// an error code could be returned if the Progress Dialog is already displayed
|
||||
try {
|
||||
PPROMPTSVC.showProgress(window, webBrowserPrint, printSettings, this._obsPP, false,
|
||||
PPROMPTSVC.showProgress(window, null, printSettings, this._obsPP, false,
|
||||
this._webProgressPP, ppParams, notifyOnOpen);
|
||||
if (ppParams.value) {
|
||||
ppParams.value.docTitle = this._originalTitle;
|
||||
ppParams.value.docURL = this._originalURL;
|
||||
}
|
||||
|
||||
// this tells us whether we should continue on with PP or
|
||||
// this tells us whether we should continue on with PP or
|
||||
// wait for the callback via the observer
|
||||
if (!notifyOnOpen.value.valueOf() || this._webProgressPP.value == null)
|
||||
if (!notifyOnOpen.value.valueOf() || this._webProgressPP.value == null) {
|
||||
this.enterPrintPreview();
|
||||
}
|
||||
} catch (e) {
|
||||
this.enterPrintPreview();
|
||||
}
|
||||
},
|
||||
|
||||
/**
|
||||
* Returns the nsIWebBrowserPrint associated with some content window.
|
||||
* This method is being kept here for compatibility reasons, but should not
|
||||
* be called by code hoping to support e10s / remote browsers.
|
||||
*
|
||||
* @param aWindow
|
||||
* The window from which to get the nsIWebBrowserPrint from.
|
||||
* @return nsIWebBrowserPrint
|
||||
*/
|
||||
getWebBrowserPrint: function (aWindow)
|
||||
{
|
||||
let Deprecated = Components.utils.import("resource://gre/modules/Deprecated.jsm", {}).Deprecated;
|
||||
let text = "getWebBrowserPrint is now deprecated, and fully unsupported for " +
|
||||
"multi-process browsers. Please use a frame script to get " +
|
||||
"access to nsIWebBrowserPrint from content.";
|
||||
let url = "https://developer.mozilla.org/en-US/docs/Printing_from_a_XUL_App";
|
||||
Deprecated.warning(text, url);
|
||||
|
||||
if (this.usingRemoteTabs) {
|
||||
return {};
|
||||
}
|
||||
|
||||
var contentWindow = aWindow || window.content;
|
||||
return contentWindow.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
|
||||
.getInterface(Components.interfaces.nsIWebBrowserPrint);
|
||||
},
|
||||
|
||||
/**
|
||||
* Returns the nsIWebBrowserPrint from the print preview browser's docShell.
|
||||
* This method is being kept here for compatibility reasons, but should not
|
||||
* be called by code hoping to support e10s / remote browsers.
|
||||
*
|
||||
* @return nsIWebBrowserPrint
|
||||
*/
|
||||
getPrintPreview: function() {
|
||||
return this._callback.getPrintPreviewBrowser().docShell.printPreview;
|
||||
let Deprecated = Components.utils.import("resource://gre/modules/Deprecated.jsm", {}).Deprecated;
|
||||
let text = "getPrintPreview is now deprecated, and fully unsupported for " +
|
||||
"multi-process browsers. Please use a frame script to get " +
|
||||
"access to nsIWebBrowserPrint from content.";
|
||||
let url = "https://developer.mozilla.org/en-US/docs/Printing_from_a_XUL_App";
|
||||
Deprecated.warning(text, url);
|
||||
|
||||
if (this.usingRemoteTabs) {
|
||||
return {};
|
||||
}
|
||||
|
||||
return this._listener.getPrintPreviewBrowser().docShell.printPreview;
|
||||
},
|
||||
|
||||
////////////////////////////////////////
|
||||
// "private" methods. Don't use them. //
|
||||
////////////////////////////////////////
|
||||
get inPrintPreview() {
|
||||
return document.getElementById("print-preview-toolbar") != null;
|
||||
},
|
||||
|
||||
////////////////////////////////////////////////////
|
||||
// "private" methods and members. Don't use them. //
|
||||
///////////////////////////////////////////////////
|
||||
|
||||
_listener: null,
|
||||
_closeHandlerPP: null,
|
||||
_webProgressPP: null,
|
||||
_sourceBrowser: null,
|
||||
_originalTitle: "",
|
||||
_originalURL: "",
|
||||
|
||||
get usingRemoteTabs() {
|
||||
// We memoize this, since it's highly unlikely to change over the lifetime
|
||||
// of the window.
|
||||
let usingRemoteTabs =
|
||||
window.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
|
||||
.getInterface(Components.interfaces.nsIWebNavigation)
|
||||
.QueryInterface(Components.interfaces.nsILoadContext)
|
||||
.useRemoteTabs;
|
||||
delete this.usingRemoteTabs;
|
||||
return this.usingRemoteTabs = usingRemoteTabs;
|
||||
},
|
||||
|
||||
receiveMessage(aMessage) {
|
||||
if (!this._webProgressPP.value) {
|
||||
// We somehow didn't get a nsIWebProgressListener to be updated...
|
||||
// I guess there's nothing to do.
|
||||
return;
|
||||
}
|
||||
|
||||
let listener = this._webProgressPP.value;
|
||||
let mm = aMessage.target.messageManager;
|
||||
let data = aMessage.data;
|
||||
|
||||
switch (aMessage.name) {
|
||||
case "Printing:Preview:ProgressChange": {
|
||||
return listener.onProgressChange(null, null,
|
||||
data.curSelfProgress,
|
||||
data.maxSelfProgress,
|
||||
data.curTotalProgress,
|
||||
data.maxTotalProgress);
|
||||
break;
|
||||
}
|
||||
|
||||
case "Printing:Preview:StateChange": {
|
||||
if (data.stateFlags & Components.interfaces.nsIWebProgressListener.STATE_STOP) {
|
||||
// Strangely, the printing engine sends 2 STATE_STOP messages when
|
||||
// print preview is finishing. One has the STATE_IS_DOCUMENT flag,
|
||||
// the other has the STATE_IS_NETWORK flag. However, the webProgressPP
|
||||
// listener stops listening once the first STATE_STOP is sent.
|
||||
// Any subsequent messages result in NS_ERROR_FAILURE errors getting
|
||||
// thrown. This should all get torn out once bug 1088061 is fixed.
|
||||
mm.removeMessageListener("Printing:Preview:StateChange", this);
|
||||
mm.removeMessageListener("Printing:Preview:ProgressChange", this);
|
||||
}
|
||||
|
||||
return listener.onStateChange(null, null,
|
||||
data.stateFlags,
|
||||
data.status);
|
||||
break;
|
||||
}
|
||||
}
|
||||
},
|
||||
|
||||
setPrinterDefaultsForSelectedPrinter: function (aPSSVC, aPrintSettings)
|
||||
{
|
||||
|
|
@ -178,15 +401,8 @@ var PrintUtils = {
|
|||
return printSettings;
|
||||
},
|
||||
|
||||
_closeHandlerPP: null,
|
||||
_webProgressPP: null,
|
||||
_callback: null,
|
||||
_sourceBrowser: null,
|
||||
_originalTitle: "",
|
||||
_originalURL: "",
|
||||
|
||||
// This observer is called once the progress dialog has been "opened"
|
||||
_obsPP:
|
||||
_obsPP:
|
||||
{
|
||||
observe: function(aSubject, aTopic, aData)
|
||||
{
|
||||
|
|
@ -199,84 +415,87 @@ var PrintUtils = {
|
|||
if (iid.equals(Components.interfaces.nsIObserver) ||
|
||||
iid.equals(Components.interfaces.nsISupportsWeakReference) ||
|
||||
iid.equals(Components.interfaces.nsISupports))
|
||||
return this;
|
||||
return this;
|
||||
throw Components.results.NS_NOINTERFACE;
|
||||
}
|
||||
},
|
||||
|
||||
enterPrintPreview: function ()
|
||||
{
|
||||
gFocusedElement = document.commandDispatcher.focusedElement;
|
||||
// Send a message to the print preview browser to initialize
|
||||
// print preview. If we happen to have gotten a print preview
|
||||
// progress listener from nsIPrintingPromptService.showProgress
|
||||
// in printPreview, we add listeners to feed that progress
|
||||
// listener.
|
||||
let ppBrowser = this._listener.getPrintPreviewBrowser();
|
||||
let mm = ppBrowser.messageManager;
|
||||
let printSettings = this.getPrintSettings();
|
||||
mm.sendAsyncMessage("Printing:Preview:Enter", null, {
|
||||
printSettings: printSettings,
|
||||
contentWindow: this._sourceBrowser.contentWindowAsCPOW,
|
||||
});
|
||||
|
||||
var webBrowserPrint;
|
||||
var printSettings = this.getPrintSettings();
|
||||
var originalWindow = this._sourceBrowser.contentWindow;
|
||||
|
||||
try {
|
||||
webBrowserPrint = this.getPrintPreview();
|
||||
webBrowserPrint.printPreview(printSettings, originalWindow,
|
||||
this._webProgressPP.value);
|
||||
} catch (e) {
|
||||
// Pressing cancel is expressed as an NS_ERROR_ABORT return value,
|
||||
// causing an exception to be thrown which we catch here.
|
||||
// Unfortunately this will also consume helpful failures, so add a
|
||||
// dump(e); // if you need to debug
|
||||
|
||||
// Need to call enter and exit so that UI gets back to normal.
|
||||
this._callback.onEnter();
|
||||
this._callback.onExit();
|
||||
return;
|
||||
if (this._webProgressPP.value) {
|
||||
mm.addMessageListener("Printing:Preview:StateChange", this);
|
||||
mm.addMessageListener("Printing:Preview:ProgressChange", this);
|
||||
}
|
||||
|
||||
var printPreviewTB = document.getElementById("print-preview-toolbar");
|
||||
if (printPreviewTB) {
|
||||
printPreviewTB.updateToolbar();
|
||||
var browser = this._callback.getPrintPreviewBrowser();
|
||||
browser.collapsed = false;
|
||||
browser.contentWindow.focus();
|
||||
return;
|
||||
}
|
||||
let onEntered = (message) => {
|
||||
mm.removeMessageListener("Printing:PrintPreview:Entered", onEntered);
|
||||
// Stash the focused element so that we can return to it after exiting
|
||||
// print preview.
|
||||
gFocusedElement = document.commandDispatcher.focusedElement;
|
||||
|
||||
// Set the original window as an active window so any mozPrintCallbacks can
|
||||
// run without delayed setTimeouts.
|
||||
var docShell = originalWindow.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
|
||||
.getInterface(Components.interfaces.nsIWebNavigation)
|
||||
.QueryInterface(Components.interfaces.nsIDocShell);
|
||||
docShell.isActive = true;
|
||||
let printPreviewTB = document.getElementById("print-preview-toolbar");
|
||||
if (printPreviewTB) {
|
||||
printPreviewTB.updateToolbar();
|
||||
ppBrowser.collapsed = false;
|
||||
ppBrowser.focus();
|
||||
return;
|
||||
}
|
||||
|
||||
// show the toolbar after we go into print preview mode so
|
||||
// that we can initialize the toolbar with total num pages
|
||||
var XUL_NS =
|
||||
"http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
|
||||
printPreviewTB = document.createElementNS(XUL_NS, "toolbar");
|
||||
printPreviewTB.setAttribute("printpreview", true);
|
||||
printPreviewTB.id = "print-preview-toolbar";
|
||||
printPreviewTB.className = "toolbar-primary";
|
||||
// Set the original window as an active window so any mozPrintCallbacks can
|
||||
// run without delayed setTimeouts.
|
||||
this._sourceBrowser.docShellIsActive = true;
|
||||
|
||||
var navToolbox = this._callback.getNavToolbox();
|
||||
navToolbox.parentNode.insertBefore(printPreviewTB, navToolbox);
|
||||
// show the toolbar after we go into print preview mode so
|
||||
// that we can initialize the toolbar with total num pages
|
||||
const XUL_NS =
|
||||
"http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
|
||||
printPreviewTB = document.createElementNS(XUL_NS, "toolbar");
|
||||
printPreviewTB.setAttribute("printpreview", true);
|
||||
printPreviewTB.id = "print-preview-toolbar";
|
||||
printPreviewTB.className = "toolbar-primary";
|
||||
|
||||
// copy the window close handler
|
||||
if (document.documentElement.hasAttribute("onclose"))
|
||||
this._closeHandlerPP = document.documentElement.getAttribute("onclose");
|
||||
else
|
||||
this._closeHandlerPP = null;
|
||||
document.documentElement.setAttribute("onclose", "PrintUtils.exitPrintPreview(); return false;");
|
||||
let navToolbox = this._listener.getNavToolbox();
|
||||
navToolbox.parentNode.insertBefore(printPreviewTB, navToolbox);
|
||||
printPreviewTB.initialize(ppBrowser);
|
||||
|
||||
// disable chrome shortcuts...
|
||||
window.addEventListener("keydown", this.onKeyDownPP, true);
|
||||
window.addEventListener("keypress", this.onKeyPressPP, true);
|
||||
// copy the window close handler
|
||||
if (document.documentElement.hasAttribute("onclose"))
|
||||
this._closeHandlerPP = document.documentElement.getAttribute("onclose");
|
||||
else
|
||||
this._closeHandlerPP = null;
|
||||
document.documentElement.setAttribute("onclose", "PrintUtils.exitPrintPreview(); return false;");
|
||||
|
||||
var browser = this._callback.getPrintPreviewBrowser();
|
||||
browser.collapsed = false;
|
||||
browser.contentWindow.focus();
|
||||
// disable chrome shortcuts...
|
||||
window.addEventListener("keydown", this.onKeyDownPP, true);
|
||||
window.addEventListener("keypress", this.onKeyPressPP, true);
|
||||
|
||||
// on Enter PP Call back
|
||||
this._callback.onEnter();
|
||||
ppBrowser.collapsed = false;
|
||||
ppBrowser.focus();
|
||||
// on Enter PP Call back
|
||||
this._listener.onEnter();
|
||||
};
|
||||
|
||||
mm.addMessageListener("Printing:Preview:Entered", onEntered);
|
||||
},
|
||||
|
||||
exitPrintPreview: function ()
|
||||
{
|
||||
let ppBrowser = this._listener.getPrintPreviewBrowser();
|
||||
let browserMM = ppBrowser.messageManager;
|
||||
browserMM.sendAsyncMessage("Printing:Preview:Exit");
|
||||
window.removeEventListener("keydown", this.onKeyDownPP, true);
|
||||
window.removeEventListener("keypress", this.onKeyPressPP, true);
|
||||
|
||||
|
|
@ -284,14 +503,11 @@ var PrintUtils = {
|
|||
document.documentElement.setAttribute("onclose", this._closeHandlerPP);
|
||||
this._closeHandlerPP = null;
|
||||
|
||||
var webBrowserPrint = this.getPrintPreview();
|
||||
webBrowserPrint.exitPrintPreview();
|
||||
|
||||
// remove the print preview toolbar
|
||||
var printPreviewTB = document.getElementById("print-preview-toolbar");
|
||||
this._callback.getNavToolbox().parentNode.removeChild(printPreviewTB);
|
||||
let printPreviewTB = document.getElementById("print-preview-toolbar");
|
||||
this._listener.getNavToolbox().parentNode.removeChild(printPreviewTB);
|
||||
|
||||
var fm = Components.classes["@mozilla.org/focus-manager;1"]
|
||||
let fm = Components.classes["@mozilla.org/focus-manager;1"]
|
||||
.getService(Components.interfaces.nsIFocusManager);
|
||||
if (gFocusedElement)
|
||||
fm.setFocus(gFocusedElement, fm.FLAG_NOSCROLL);
|
||||
|
|
@ -299,7 +515,7 @@ var PrintUtils = {
|
|||
window.content.focus();
|
||||
gFocusedElement = null;
|
||||
|
||||
this._callback.onExit();
|
||||
this._listener.onExit();
|
||||
},
|
||||
|
||||
onKeyDownPP: function (aEvent)
|
||||
|
|
@ -329,7 +545,7 @@ var PrintUtils = {
|
|||
var printKey = document.getElementById("printKb").getAttribute("key").toUpperCase();
|
||||
var pressedKey = String.fromCharCode(aEvent.charCode).toUpperCase();
|
||||
if (printKey == pressedKey) {
|
||||
PrintUtils.print();
|
||||
printPreviewTB.print();
|
||||
}
|
||||
}
|
||||
// cancel shortkeys
|
||||
|
|
|
|||
|
|
@ -6,8 +6,10 @@
|
|||
let Cc = Components.classes;
|
||||
let Ci = Components.interfaces;
|
||||
let Cu = Components.utils;
|
||||
let Cr = Components.results;
|
||||
|
||||
Cu.import("resource://gre/modules/Services.jsm");
|
||||
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
|
||||
|
||||
var global = this;
|
||||
|
||||
|
|
@ -353,3 +355,130 @@ PopupBlocking.init();
|
|||
// Set up console.* for frame scripts.
|
||||
let Console = Components.utils.import("resource://gre/modules/devtools/Console.jsm", {});
|
||||
this.console = new Console.ConsoleAPI();
|
||||
|
||||
let 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:UpdatePageCount",
|
||||
"Printing:Print",
|
||||
],
|
||||
|
||||
init() {
|
||||
this.MESSAGES.forEach(msgName => addMessageListener(msgName, this));
|
||||
},
|
||||
|
||||
receiveMessage(message) {
|
||||
let objects = message.objects;
|
||||
let data = message.data;
|
||||
switch(message.name) {
|
||||
case "Printing:Preview:Enter": {
|
||||
this.enterPrintPreview(objects.printSettings, objects.contentWindow);
|
||||
break;
|
||||
}
|
||||
|
||||
case "Printing:Preview:Exit": {
|
||||
this.exitPrintPreview();
|
||||
break;
|
||||
}
|
||||
|
||||
case "Printing:Preview:Navigate": {
|
||||
this.navigate(data.navType, data.pageNum);
|
||||
break;
|
||||
}
|
||||
|
||||
case "Printing:Preview:UpdatePageCount": {
|
||||
this.updatePageCount();
|
||||
break;
|
||||
}
|
||||
|
||||
case "Printing:Print": {
|
||||
this.print(objects.printSettings, objects.contentWindow);
|
||||
break;
|
||||
}
|
||||
}
|
||||
},
|
||||
|
||||
enterPrintPreview(printSettings, contentWindow) {
|
||||
// Bug 1088070 - we should instantiate nsIPrintSettings here in the
|
||||
// content script instead of passing it down as a CPOW.
|
||||
if (Cu.isCrossProcessWrapper(printSettings)) {
|
||||
printSettings = null;
|
||||
}
|
||||
|
||||
// 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", function onPrintPreviewReady() {
|
||||
removeEventListener("printPreviewUpdate", onPrintPreviewReady);
|
||||
sendAsyncMessage("Printing:Preview:Entered");
|
||||
});
|
||||
|
||||
docShell.printPreview.printPreview(printSettings, contentWindow, this);
|
||||
},
|
||||
|
||||
exitPrintPreview() {
|
||||
docShell.printPreview.exitPrintPreview();
|
||||
},
|
||||
|
||||
print(printSettings, contentWindow) {
|
||||
// Bug 1088070 - we should instantiate nsIPrintSettings here in the
|
||||
// content script instead of passing it down as a CPOW.
|
||||
if (Cu.isCrossProcessWrapper(printSettings)) {
|
||||
printSettings = null;
|
||||
}
|
||||
|
||||
let print = contentWindow.QueryInterface(Ci.nsIInterfaceRequestor)
|
||||
.getInterface(Ci.nsIWebBrowserPrint);
|
||||
print.print(printSettings, null);
|
||||
},
|
||||
|
||||
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();
|
||||
|
||||
|
|
|
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Загрузка…
Ссылка в новой задаче