diff --git a/src/plugins/gramplet/EditExifMetadata.py b/src/plugins/gramplet/EditExifMetadata.py index 5c60e51e8..cc04f81fb 100644 --- a/src/plugins/gramplet/EditExifMetadata.py +++ b/src/plugins/gramplet/EditExifMetadata.py @@ -395,6 +395,40 @@ class EditExifMetadata(Gramplet): # provide tooltips for all fields and buttons... _setup_widget_tooltips(self.exif_widgets) + def update_has_data(self): + active_handle = self.get_active('Media') + active = self.dbstate.db.get_object_from_handle(active_handle) + self.set_has_data(self.get_has_data(active)) + + def get_has_data(self, media): + """ + Return True if the gramplet has data, else return False. + """ + if self.orig_image is None: + return False + + if LesserVersion: # prior to v0.2.0 + try: + metadata = pyexiv2.Image(self.image_path) + except (IOError, OSError): + return False + + metadata.readMetadata() + if metadata.exifKeys(): + return True + + else: # v0.2.0 and above + metadata = pyexiv2.ImageMetadata(self.image_path) + try: + metadata.read() + except (IOError, OSError): + return False + + if metadata.exif_keys: + return True + + return False + def main(self): # return false finishes """ get the active media, mime type, and reads the image metadata @@ -416,6 +450,7 @@ class EditExifMetadata(Gramplet): active_handle = self.get_active("Media") if not active_handle: + self.set_has_data(False) return self.orig_image = db.get_object_from_handle(active_handle) @@ -545,7 +580,11 @@ class EditExifMetadata(Gramplet): self.plugin_image = pyexiv2.ImageMetadata(full_path) if LesserVersion: - self.plugin_image.readMetadata() + try: + self.plugin_image.readMetadata() + except (IOError, OSError): + self.set_has_data(False) + return # get all KeyTags for this image for diplay only... self.MediaDataTags = [KeyTag for KeyTag in chain( @@ -553,7 +592,11 @@ class EditExifMetadata(Gramplet): self.plugin_image.xmpKeys(), self.plugin_image.iptcKeys() ) ] else: - self.plugin_image.read() + try: + self.plugin_image.read() + except (IOError, OSError): + self.set_has_data(False) + return # get all KeyTags for this image for diplay only... self.MediaDataTags = [KeyTag for KeyTag in chain( @@ -654,6 +697,9 @@ class EditExifMetadata(Gramplet): all of the image Exif metadata... """ + # set has data flag... + self.set_has_data( len(self.MediaDataTags) > 0) + # check to see if we got metadata from the media object? if self.MediaDataTags: @@ -687,6 +733,9 @@ class EditExifMetadata(Gramplet): # display "No Exif metadata" message... self.exif_widgets["Message:Area"].set_text(_("No Exif metadata for this image...")) + # set has_data flag... + self.set_has_data(False) + # Activate Clear and Save buttons.. self.activate_buttons(["Clear", "Save"])