Thanks for working in this! It's a great addition to Browse. Gonzalo <div class="gmail_quote">On Sun, May 29, 2011 at 11:04 AM, Sascha Silbe <<a href="mailto:silbe@activitycentral.com">silbe@activitycentral.com</a>> wrote: <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">The content of the current tab gets exported as a new data store entry (independent from the current Browse session), including some of the metadata (title, original_url). Similar to the way it works for Turtle Art, we expose the functionality as a button in the Activity toolbar, with 'document-save' as icon. There is no way for the user to influence the result (i.e. to set print options). To work around a python-xpcom bug [1], we "patch" python-xpcom at runtime. Given the current state of affairs regarding python-xpcom, this is probably the best we can do. [1] <a href="http://bugs.debian.org/628484" target="_blank">http://bugs.debian.org/628484</a> Signed-off-by: Sascha Silbe <<a href="mailto:silbe@activitycentral.com">silbe@activitycentral.com</a>> --- browser.py | 68 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ webtoolbar.py | 10 ++++++++ 2 files changed, 78 insertions(+), 0 deletions(-) diff --git a/browser.py b/browser.py index 649a71e..bd57e79 100644 --- a/browser.py +++ b/browser.py @@ -20,6 +20,7 @@ import os import time import logging from gettext import gettext as _ +import tempfile import gobject import gtk @@ -304,6 +305,73 @@ class Browser(WebView): self.emit('is-setup') + def export_pdf(self): + temp_dir = os.path.join(activity.get_activity_root(), 'instance') + pdf_file = tempfile.NamedTemporaryFile(suffix='.pdf', dir=temp_dir, + delete=False) + + logging.debug('<a href="http://pdf_file.name" target="_blank">pdf_file.name</a> = %r', <a href="http://pdf_file.name" target="_blank">pdf_file.name</a>) + try: + self._generate_pdf(<a href="http://pdf_file.name" target="_blank">pdf_file.name</a>) + except: + os.remove(<a href="http://pdf_file.name" target="_blank">pdf_file.name</a>) + raise + + def _generate_pdf(self, file_name): + cls = components.classes['@<a href="http://mozilla.org/gfx/printsettings-service;1" target="_blank">mozilla.org/gfx/printsettings-service;1</a>'] + setting_service = cls.getService(interfaces.nsIPrintSettingsService) + req = self.get_dom_window().QueryInterface(interfaces.nsIInterfaceRequestor) + print_iface = req.getInterface(interfaces.nsIWebBrowserPrint) + + settings = setting_service.newPrintSettings + settings.printSilent = True + settings.printToFile = True + settings.toFileName = file_name + settings.outputFormat = interfaces.nsIPrintSettings.kOutputFormatPDF + + try: + print_method = getattr(print_iface, 'print') + except SyntaxError: + # HACK: Run-time patch python-xpcom to work around a bug. + # 'print' is a reserved keyword, so it must not occur in generated + # code. + iid = interfaces.nsIWebBrowserPrint + internal_interface = print_iface.__dict__['_interfaces_'][iid] + info = internal_interface.__dict__['_method_infos_']['print'] + <a href="http://info.name" target="_blank">info.name</a> = 'print_' + print_method = getattr(print_iface, 'print') + + save_info = {'file_name': file_name, 'title': self.props.title, + 'uri': self.get_url_from_nsiuri(self.progress.location)} + + def save_callback(info): + # Even after the progress listener reports completion, the file + # is still empty. We need to wait for everything to calm down + # before triggering the save. + gobject.idle_add(self._save_pdf, info) + + listener = xpcom.server.WrapObject(SaveListener(save_info, + save_callback), + interfaces.nsIWebProgressListener) + print_method(settings, listener) + + def _save_pdf(self, info): + logging.debug('_save_pdf(%r)', info) + try: + if os.stat(info['file_name']).st_size == 0: + raise ValueError('Generated PDF file is empty') + + ds_object = datastore.create() + ds_object.file_path = info['file_name'] + ds_object.metadata['mime_type'] = 'application/pdf' + ds_object.metadata['title'] = info['title'] + ds_object.metadata['original_uri'] = info['uri'] + datastore.write(ds_object, transfer_ownership=True) + except: + if os.path.exists(info['file_name']): + os.remove(info['file_name']) + raise + def get_url_from_nsiuri(self, uri): """ get a nsIURI object and return a string with the url diff --git a/webtoolbar.py b/webtoolbar.py index 8b0e108..3ce4011 100644 --- a/webtoolbar.py +++ b/webtoolbar.py @@ -255,6 +255,12 @@ class PrimaryToolbar(ToolbarBase): else: toolbar = self + export_pdf_button = ToolButton('document-save') + export_pdf_button.set_tooltip(_('Export as PDF')) + export_pdf_button.connect('clicked', self._export_pdf_cb) + activity_button.page.insert(export_pdf_button, -1) + export_pdf_button.show() + self._go_home = ToolButton('go-home') self._go_home.set_tooltip(_('Home page')) self._go_home.connect('clicked', self._go_home_cb) @@ -494,3 +500,7 @@ class PrimaryToolbar(ToolbarBase): def _link_add_clicked_cb(self, button): self.emit('add-link') + + def _export_pdf_cb(self, button): + browser = self._tabbed_view.props.current_browser + browser.export_pdf() -- 1.7.2.5 _______________________________________________ Sugar-devel mailing list <a href="mailto:Sugar-devel@lists.sugarlabs.org">Sugar-devel@lists.sugarlabs.org</a> <a href="http://lists.sugarlabs.org/listinfo/sugar-devel" target="_blank">http://lists.sugarlabs.org/listinfo/sugar-devel</a> </blockquote></div>