print and print preview is not working in iframe window.

[magreenblatt]

Original report by Anil Achary (Bitbucket: acharyanil, GitHub: acharyanil).

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In cefclient (3770 branch+1669c0a commit and in master branch), print and print preview is not working in iframe content window.

I have included below iframe in the cefclient
\<div class="ctr-p" id="viewport"><div id="doc-info"></div>
\<iframe src="https://www.google.com" id="testprint"></iframe>
and executed below command in console.
document.getElementById('testprint').contentWindow.document.execCommand('print');
Print dialog does not appear.
Rest of the print (windows.print()) works fine, only problem is in the iframe window.

From the analysis, I have found that CEF is not receiving PrintHostMsg_ShowScriptedPrintPreview (CefPrintViewManager::OnShowScriptedPrintPreview) IPC message when the print is executed in the iframe window.

Tested on windows 10 OS.

Best Regards,
Anil

[magreenblatt]

Original comment by Anil Achary (Bitbucket: acharyanil, GitHub: acharyanil).

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I have tested in Google Chrome version 75.0.3770.100, print is working fine in iframe window.

[magreenblatt]

Original changes by Anil Achary (Bitbucket: acharyanil, GitHub: acharyanil).

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• changed component from "Unclassified" to "Framework"

[magreenblatt]

Original changes by Anil Achary (Bitbucket: acharyanil, GitHub: acharyanil).

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• edited description

[magreenblatt]

Original changes by Anil Achary (Bitbucket: acharyanil, GitHub: acharyanil).

---

• edited description

[magreenblatt]

Original comment by Anil Achary (Bitbucket: acharyanil, GitHub: acharyanil).

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I have tested in the latest branch 3865 and in Master branch as well, print does not work in iframe content window.
For testing, Edited DOM element with below line and executed following command in console.

[magreenblatt]

Original changes by Anil Achary (Bitbucket: acharyanil, GitHub: acharyanil).

---

• edited description

[magreenblatt]

Original comment by Anil Achary (Bitbucket: acharyanil, GitHub: acharyanil).

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I have fixed the issue, will raise a PR after testing.

[magreenblatt]

Original comment by Anil Achary (Bitbucket: acharyanil, GitHub: acharyanil).

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PR https://bitbucket.org/chromiumembedded/cef/pull-requests/257/fix-for-iframe-print-print_preview-issue/diff

[magreenblatt]

Fix printing from iframes (fixes issue #2753)

→ <<cset b560f0404603 (bb)>>

[magreenblatt]

• changed state from "new" to "resolved"

[magreenblatt]

Fix printing from iframes (fixes issue #2753)

→ <<cset 7692d87e04b5 (bb)>>

[magreenblatt]

Original comment by Ilia Shkolyar (Bitbucket: iliashko, GitHub: iliashko).

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Hello @{557058:2f2a2aee-b500-4023-9734-037e9897c3ab} ,

Will this fix be ported into the 3865 branch as well?
According to the issue description it happens there as well, and the fixes were committed to branches 3904 and master only.

Thanks