forked from openlp/openlp
Improve PowerPoint error handling
bzr-revno: 2198
This commit is contained in:
commit
882ad4b23a
@ -37,6 +37,7 @@ if os.name == u'nt':
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import pywintypes
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import pywintypes
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from presentationcontroller import PresentationController, PresentationDocument
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from presentationcontroller import PresentationController, PresentationDocument
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from openlp.core.lib.ui import UiStrings, critical_error_message_box
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log = logging.getLogger(__name__)
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log = logging.getLogger(__name__)
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@ -100,7 +101,7 @@ class PowerpointController(PresentationController):
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if self.process.Presentations.Count > 0:
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if self.process.Presentations.Count > 0:
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return
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return
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self.process.Quit()
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self.process.Quit()
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except pywintypes.com_error:
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except (AttributeError, pywintypes.com_error):
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pass
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pass
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self.process = None
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self.process = None
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@ -124,18 +125,28 @@ class PowerpointDocument(PresentationDocument):
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Opens the PowerPoint file using the process created earlier.
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Opens the PowerPoint file using the process created earlier.
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"""
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"""
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log.debug(u'load_presentation')
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log.debug(u'load_presentation')
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if not self.controller.process or not self.controller.process.Visible:
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self.controller.start_process()
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try:
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try:
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if not self.controller.process or not self.controller.process.Visible:
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self.controller.start_process()
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self.controller.process.Presentations.Open(self.filepath, False,
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self.controller.process.Presentations.Open(self.filepath, False,
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False, True)
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False, True)
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self.presentation = self.controller.process.Presentations(
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self.controller.process.Presentations.Count)
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self.create_thumbnails()
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# Powerpoint 2013 pops up when loading a file, so we minimize it again
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if self.presentation.Application.Version == u'15.0':
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try:
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self.presentation.Application.WindowState = 2
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except:
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log.exception(u'Failed to minimize main powerpoint window')
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exc_type, exc_value, exc_traceback = sys.exc_info()
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log.exception(''.join(traceback.format_exception(exc_type, exc_value, exc_traceback)))
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return True
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except pywintypes.com_error:
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except pywintypes.com_error:
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log.debug(u'PPT open failed')
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log.exception(u'PPT open failed')
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exc_type, exc_value, exc_traceback = sys.exc_info()
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log.exception(''.join(traceback.format_exception(exc_type, exc_value, exc_traceback)))
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return False
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return False
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self.presentation = self.controller.process.Presentations(
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self.controller.process.Presentations.Count)
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self.create_thumbnails()
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return True
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def create_thumbnails(self):
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def create_thumbnails(self):
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"""
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"""
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@ -187,7 +198,6 @@ class PowerpointDocument(PresentationDocument):
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return False
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return False
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return True
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return True
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def is_active(self):
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def is_active(self):
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"""
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"""
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Returns ``True`` if a presentation is currently active.
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Returns ``True`` if a presentation is currently active.
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@ -209,23 +219,35 @@ class PowerpointDocument(PresentationDocument):
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Unblanks (restores) the presentation.
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Unblanks (restores) the presentation.
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"""
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"""
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log.debug(u'unblank_screen')
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log.debug(u'unblank_screen')
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self.presentation.SlideShowSettings.Run()
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try:
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self.presentation.SlideShowWindow.View.State = 1
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self.presentation.SlideShowSettings.Run()
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self.presentation.SlideShowWindow.Activate()
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self.presentation.SlideShowWindow.View.State = 1
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if self.presentation.Application.Version == u'14.0':
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self.presentation.SlideShowWindow.Activate()
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# Unblanking is broken in PowerPoint 2010, need to redisplay
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if self.presentation.Application.Version == u'14.0':
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slide = self.presentation.SlideShowWindow.View.CurrentShowPosition
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# Unblanking is broken in PowerPoint 2010, need to redisplay
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click = self.presentation.SlideShowWindow.View.GetClickIndex()
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slide = self.presentation.SlideShowWindow.View.CurrentShowPosition
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self.presentation.SlideShowWindow.View.GotoSlide(slide)
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click = self.presentation.SlideShowWindow.View.GetClickIndex()
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if click:
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self.presentation.SlideShowWindow.View.GotoSlide(slide)
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self.presentation.SlideShowWindow.View.GotoClick(click)
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if click:
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self.presentation.SlideShowWindow.View.GotoClick(click)
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except pywintypes.com_error:
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log.exception(u'COM error while in unblank_screen')
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exc_type, exc_value, exc_traceback = sys.exc_info()
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log.exception(''.join(traceback.format_exception(exc_type, exc_value, exc_traceback)))
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self.show_error_msg()
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def blank_screen(self):
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def blank_screen(self):
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"""
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"""
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Blanks the screen.
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Blanks the screen.
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"""
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"""
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log.debug(u'blank_screen')
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log.debug(u'blank_screen')
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self.presentation.SlideShowWindow.View.State = 3
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try:
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self.presentation.SlideShowWindow.View.State = 3
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except pywintypes.com_error:
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log.exception(u'COM error while in blank_screen')
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exc_type, exc_value, exc_traceback = sys.exc_info()
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log.exception(''.join(traceback.format_exception(exc_type, exc_value, exc_traceback)))
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self.show_error_msg()
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def is_blank(self):
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def is_blank(self):
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"""
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"""
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@ -233,7 +255,13 @@ class PowerpointDocument(PresentationDocument):
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"""
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"""
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log.debug(u'is_blank')
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log.debug(u'is_blank')
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if self.is_active():
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if self.is_active():
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return self.presentation.SlideShowWindow.View.State == 3
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try:
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return self.presentation.SlideShowWindow.View.State == 3
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except pywintypes.com_error:
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log.exception(u'COM error while in is_blank')
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exc_type, exc_value, exc_traceback = sys.exc_info()
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log.exception(''.join(traceback.format_exception(exc_type, exc_value, exc_traceback)))
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return False
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else:
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else:
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return False
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return False
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@ -242,8 +270,12 @@ class PowerpointDocument(PresentationDocument):
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Stops the current presentation and hides the output.
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Stops the current presentation and hides the output.
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"""
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"""
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log.debug(u'stop_presentation')
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log.debug(u'stop_presentation')
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self.presentation.SlideShowWindow.View.Exit()
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try:
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self.presentation.SlideShowWindow.View.Exit()
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except pywintypes.com_error as e:
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log.exception(u'COM error while in stop_presentation')
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exc_type, exc_value, exc_traceback = sys.exc_info()
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log.exception(''.join(traceback.format_exception(exc_type, exc_value, exc_traceback)))
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if os.name == u'nt':
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if os.name == u'nt':
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def start_presentation(self):
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def start_presentation(self):
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"""
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"""
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@ -264,39 +296,80 @@ class PowerpointDocument(PresentationDocument):
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ppt_window = self.presentation.SlideShowSettings.Run()
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ppt_window = self.presentation.SlideShowSettings.Run()
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if not ppt_window:
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if not ppt_window:
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return
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return
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ppt_window.Top = rect.y() * 72 / dpi
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try:
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ppt_window.Height = rect.height() * 72 / dpi
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ppt_window.Top = rect.y() * 72 / dpi
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ppt_window.Left = rect.x() * 72 / dpi
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ppt_window.Height = rect.height() * 72 / dpi
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ppt_window.Width = rect.width() * 72 / dpi
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ppt_window.Left = rect.x() * 72 / dpi
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ppt_window.Width = rect.width() * 72 / dpi
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except AttributeError as e:
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log.exception(u'AttributeError while in start_presentation')
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exc_type, exc_value, exc_traceback = sys.exc_info()
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log.exception(''.join(traceback.format_exception(exc_type, exc_value, exc_traceback)))
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# Powerpoint 2013 pops up when starting a file, so we minimize it again
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if self.presentation.Application.Version == u'15.0':
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try:
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self.presentation.Application.WindowState = 2
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except:
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log.exception(u'Failed to minimize main powerpoint window')
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exc_type, exc_value, exc_traceback = sys.exc_info()
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log.exception(''.join(traceback.format_exception(exc_type, exc_value, exc_traceback)))
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def get_slide_number(self):
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def get_slide_number(self):
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"""
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"""
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Returns the current slide number.
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Returns the current slide number.
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"""
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"""
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log.debug(u'get_slide_number')
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log.debug(u'get_slide_number')
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return self.presentation.SlideShowWindow.View.CurrentShowPosition
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try:
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ret = self.presentation.SlideShowWindow.View.CurrentShowPosition
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except pywintypes.com_error as e:
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ret = 0
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log.exception(u'COM error while in get_slide_number')
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exc_type, exc_value, exc_traceback = sys.exc_info()
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log.exception(''.join(traceback.format_exception(exc_type, exc_value, exc_traceback)))
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self.show_error_msg()
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return ret
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def get_slide_count(self):
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def get_slide_count(self):
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"""
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"""
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Returns total number of slides.
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Returns total number of slides.
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"""
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"""
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log.debug(u'get_slide_count')
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log.debug(u'get_slide_count')
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return self.presentation.Slides.Count
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try:
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ret = self.presentation.Slides.Count
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except pywintypes.com_error as e:
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ret = 0
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log.exception(u'COM error while in get_slide_count')
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exc_type, exc_value, exc_traceback = sys.exc_info()
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log.exception(''.join(traceback.format_exception(exc_type, exc_value, exc_traceback)))
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self.show_error_msg()
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return ret
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def goto_slide(self, slideno):
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def goto_slide(self, slideno):
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"""
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"""
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Moves to a specific slide in the presentation.
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Moves to a specific slide in the presentation.
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"""
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"""
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log.debug(u'goto_slide')
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log.debug(u'goto_slide')
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self.presentation.SlideShowWindow.View.GotoSlide(slideno)
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try:
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self.presentation.SlideShowWindow.View.GotoSlide(slideno)
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except pywintypes.com_error as e:
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log.exception(u'COM error while in goto_slide')
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exc_type, exc_value, exc_traceback = sys.exc_info()
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log.exception(''.join(traceback.format_exception(exc_type, exc_value, exc_traceback)))
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self.show_error_msg()
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def next_step(self):
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def next_step(self):
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"""
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"""
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Triggers the next effect of slide on the running presentation.
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Triggers the next effect of slide on the running presentation.
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"""
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"""
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log.debug(u'next_step')
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log.debug(u'next_step')
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self.presentation.SlideShowWindow.View.Next()
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try:
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self.presentation.SlideShowWindow.View.Next()
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except pywintypes.com_error as e:
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log.exception(u'COM error while in next_step')
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exc_type, exc_value, exc_traceback = sys.exc_info()
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log.exception(''.join(traceback.format_exception(exc_type, exc_value, exc_traceback)))
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self.show_error_msg()
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return
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if self.get_slide_number() > self.get_slide_count():
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if self.get_slide_number() > self.get_slide_count():
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self.previous_step()
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self.previous_step()
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@ -305,7 +378,13 @@ class PowerpointDocument(PresentationDocument):
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Triggers the previous slide on the running presentation.
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Triggers the previous slide on the running presentation.
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"""
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"""
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log.debug(u'previous_step')
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log.debug(u'previous_step')
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self.presentation.SlideShowWindow.View.Previous()
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try:
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self.presentation.SlideShowWindow.View.Previous()
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except pywintypes.com_error as e:
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log.exception(u'COM error while in previous_step')
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exc_type, exc_value, exc_traceback = sys.exc_info()
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log.exception(''.join(traceback.format_exception(exc_type, exc_value, exc_traceback)))
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self.show_error_msg()
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def get_slide_text(self, slide_no):
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def get_slide_text(self, slide_no):
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"""
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"""
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@ -326,6 +405,16 @@ class PowerpointDocument(PresentationDocument):
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return _get_text_from_shapes(
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return _get_text_from_shapes(
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self.presentation.Slides(slide_no).NotesPage.Shapes)
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self.presentation.Slides(slide_no).NotesPage.Shapes)
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def show_error_msg(self):
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"""
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Stop presentation and display an error message.
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"""
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self.stop_presentation()
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critical_error_message_box(UiStrings().Error, translate('PresentationPlugin.PowerpointDocument',
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'An error occurred in the Powerpoint integration '
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'and the presentation will be stopped. '
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'Restart the presentation if you wish to present it.'))
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def _get_text_from_shapes(shapes):
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def _get_text_from_shapes(shapes):
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"""
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"""
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Returns any text extracted from the shapes on a presentation slide.
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Returns any text extracted from the shapes on a presentation slide.
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