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Fix web api issue and crash with small theme 

Potentially fixes some other issues we didn't know about too...
This just stops anything interfering with creating slides,
and stops fetching the slides halfway through processing
This commit is contained in:
Daniel 2020-10-09 06:26:28 +00:00 committed by Tim Bentley
parent aa6107cea7
commit 5dea23662a
5 changed files with 71 additions and 15 deletions
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16
openlp/core/lib/serviceitem.py
View File

@ -25,7 +25,6 @@ import datetime
import logging
import ntpath
import os
import urllib.request
import uuid
from copy import deepcopy
from pathlib import Path
@ -39,9 +38,9 @@ from openlp.core.common.enum import ServiceItemType
from openlp.core.common.i18n import translate
from openlp.core.common.mixins import RegistryProperties
from openlp.core.common.registry import Registry
from openlp.core.common.utils import wait_for
from openlp.core.display.render import remove_tags, render_tags, render_chords_for_printing
from openlp.core.lib import ItemCapabilities
from openlp.core.lib import create_thumb
from openlp.core.lib import create_thumb, image_to_data_uri, ItemCapabilities
from openlp.core.lib.theme import BackgroundType, TransitionSpeed
from openlp.core.state import State
from openlp.core.ui.icons import UiIcons
@ -70,6 +69,7 @@ class ServiceItem(RegistryProperties):
self._rendered_slides = None
self._display_slides = None
self._print_slides = None
self._creating_slides = False
self.title = ''
self.slides = []
self.processor = None
@ -202,6 +202,8 @@ class ServiceItem(RegistryProperties):
"""
Create frames for rendering and display
"""
wait_for(lambda: not self._creating_slides)
self._creating_slides = True
self._rendered_slides = []
self._display_slides = []
@ -234,12 +236,14 @@ class ServiceItem(RegistryProperties):
}
self._display_slides.append(display_slide)
index += 1
self._creating_slides = False
@property
def rendered_slides(self):
"""
Render the frames and return them
"""
wait_for(lambda: not self._creating_slides)
if not self._rendered_slides:
self._create_slides()
return self._rendered_slides
@ -249,6 +253,7 @@ class ServiceItem(RegistryProperties):
"""
Render the frames and return them
"""
wait_for(lambda: not self._creating_slides)
if not self._display_slides:
self._create_slides()
return self._display_slides
@ -868,6 +873,7 @@ class ServiceItem(RegistryProperties):
def to_dict(self):
"""
Convert the service item into a dictionary
Images and thumbnails are put in dict as data uri strings.
"""
data_dict = {
'title': self.title,
@ -902,7 +908,7 @@ class ServiceItem(RegistryProperties):
full_thumbnail_path = AppLocation.get_data_path() / thumbnail_path
if not full_thumbnail_path.exists():
create_thumb(Path(self.get_frame_path(index)), full_thumbnail_path, False)
item['img'] = urllib.request.pathname2url(os.path.sep + str(thumbnail_path))
item['img'] = image_to_data_uri(full_thumbnail_path)
item['text'] = str(frame['title'])
item['html'] = str(frame['title'])
else:
@ -921,7 +927,7 @@ class ServiceItem(RegistryProperties):
log.warning('Service item "{title}" is missing a thumbnail or has an invalid thumbnail path'
.format(title=self.title))
else:
item['img'] = urllib.request.pathname2url(os.path.sep + str(relative_file))
item['img'] = image_to_data_uri(AppLocation.get_data_path() / relative_file)
item['text'] = str(frame['title'])
item['html'] = str(frame['title'])
data_dict['slides'].append(item)

2
openlp/core/ui/thememanager.py
View File

@ -738,6 +738,8 @@ class ThemeManager(QtWidgets.QWidget, RegistryBase, Ui_ThemeManager, LogMixin, R
for theme_name in theme_name_list:
theme_data = self._get_theme_data(theme_name)
preview_pixmap = self.progress_form.get_preview(theme_name, theme_data)
if preview_pixmap is None:
break
self.save_preview(theme_name, preview_pixmap)
self.progress_form.close()
self.load_themes()

11
openlp/core/ui/themeprogressform.py
View File

@ -49,11 +49,20 @@ class ThemeProgressForm(QtWidgets.QDialog, UiThemeProgressDialog, RegistryProper
return super().show()
def get_preview(self, theme_name, theme_data):
"""
Fetch a screenshot of the webengine preview
:return: Image of the webengine, can be None
"""
self.label.setText(theme_name)
self.progress_bar.setValue(self.progress_bar.value() + 1)
wait_for(lambda: self.theme_display.is_initialised)
self.theme_display.set_scale(float(self.theme_display.width()) / self.renderer.width())
return self.theme_display.generate_preview(theme_data, generate_screenshot=True)
screenshot = self.theme_display.generate_preview(theme_data, generate_screenshot=True)
if self.isVisible():
return screenshot
else:
return None
def _get_theme_list(self):
"""Property getter"""

16
tests/functional/openlp_core/lib/test_serviceitem.py
View File

@ -24,7 +24,7 @@ Package to test the openlp.core.lib package.
import os
import pytest
from pathlib import Path
from unittest.mock import Mock, MagicMock, patch, ANY
from unittest.mock import Mock, MagicMock, patch
from openlp.core.common import ThemeLevel, is_win
from openlp.core.common.enum import ServiceItemType
@ -809,7 +809,9 @@ def test_to_dict_text_item(state_media, settings, service_item_env):
assert result == expected_dict
def test_to_dict_image_item(state_media, settings, service_item_env):
@patch('openlp.core.lib.serviceitem.AppLocation.get_data_path')
@patch('openlp.core.lib.serviceitem.image_to_data_uri')
def test_to_dict_image_item(mocked_image_to_data_uri, mocked_get_data_path, state_media, settings, service_item_env):
"""
Test that the to_dict() method returns the correct data for the service item
"""
@ -820,6 +822,8 @@ def test_to_dict_image_item(state_media, settings, service_item_env):
service_item.add_icon = MagicMock()
FormattingTags.load_tags()
line = convert_file_service_item(TEST_PATH, 'serviceitem_image_2.osj')
mocked_get_data_path.return_value = Path('/path/to/')
mocked_image_to_data_uri.side_effect = lambda x: 'your image uri at: {}'.format(x)
with patch('openlp.core.lib.serviceitem.sha256_file_hash') as mocked_sha256_file_hash:
mocked_sha256_file_hash.return_value = '3a7ccbdb0b5a3db169c4692d7aad0ec8'
@ -841,7 +845,7 @@ def test_to_dict_image_item(state_media, settings, service_item_env):
'slides': [
{
'html': 'image_1.jpg',
'img': '/images/thumbnails/image_1.jpg',
'img': 'your image uri at: /path/to/images/thumbnails/image_1.jpg',
'selected': False,
'tag': 1,
'text': 'image_1.jpg',
@ -856,7 +860,8 @@ def test_to_dict_image_item(state_media, settings, service_item_env):
@patch('openlp.core.lib.serviceitem.AppLocation.get_data_path')
def test_to_dict_presentation_item(mocked_get_data_path, state_media, settings, service_item_env):
@patch('openlp.core.lib.serviceitem.image_to_data_uri')
def test_to_dict_presentation_item(mocked_image_uri, mocked_get_data_path, state_media, settings, service_item_env):
"""
Test that the to_dict() method returns the correct data for the service item
"""
@ -870,6 +875,7 @@ def test_to_dict_presentation_item(mocked_get_data_path, state_media, settings,
image = Path('thumbnails/abcd/slide1.png')
display_title = 'DisplayTitle'
notes = 'Note1\nNote2\n'
mocked_image_uri.side_effect = lambda x: 'your img uri at: {}'.format(x)
# WHEN: adding presentation to service_item
with patch('openlp.core.lib.serviceitem.sha256_file_hash') as mocked_sha256_file_hash,\
@ -898,7 +904,7 @@ def test_to_dict_presentation_item(mocked_get_data_path, state_media, settings,
'tag': 1,
'text': 'test.pptx',
'title': '',
'img': ANY
'img': 'your img uri at: /path/to/presentations/thumbnails/4a067fed6834ea2bc4b8819f11636365/slide1.png'
}
],
'theme': None,

41
tests/openlp_core/ui/test_themeprogressform.py
View File

@ -36,7 +36,9 @@ def _get_theme_progress_form():
def test_init(qapp):
"""Test that the ThemeProgressForm is created without problems"""
"""
Test that the ThemeProgressForm is created without problems
"""
# GIVEN: ThemeProgressForm class
# WHEN: An object is instatiated
# THEN: There is no problem
@ -46,7 +48,9 @@ def test_init(qapp):
@patch('openlp.core.ui.themeprogressform.ScreenList')
@patch('openlp.core.ui.themeprogressform.QtWidgets.QDialog.show')
def test_show(mocked_show, MockScreenList, settings):
"""Test that the ThemeProgressForm is created without problems"""
"""
Test that the ThemeProgressForm is created without problems
"""
# GIVEN: ThemeProgressForm object
form = _get_theme_progress_form()
mocked_screen_list = MagicMock()
@ -70,7 +74,9 @@ def test_show(mocked_show, MockScreenList, settings):
@patch('openlp.core.ui.themeprogressform.ScreenList')
@patch('openlp.core.ui.themeprogressform.QtWidgets.QDialog.show')
def test_show_divide_by_zero(mocked_show, MockScreenList, settings):
"""Test that the ThemeProgressForm is created without problems even if there's a divide by zero exception"""
"""
Test that the ThemeProgressForm is created without problems even if there's a divide by zero exception
"""
# GIVEN: ThemeProgressForm object
form = _get_theme_progress_form()
mocked_screen_list = MagicMock()
@ -92,7 +98,9 @@ def test_show_divide_by_zero(mocked_show, MockScreenList, settings):
def test_get_preview(settings):
"""Test that the get_preview() method returns a preview image"""
"""
Test that the get_preview() method returns a preview image
"""
# GIVEN: ThemeProgressForm object
Registry.create()
mocked_renderer = MagicMock()
@ -100,6 +108,7 @@ def test_get_preview(settings):
test_theme_name = 'Test Theme'
test_theme_data = {'name': test_theme_name}
form = _get_theme_progress_form()
form.isVisible = MagicMock(return_value=True)
form.progress_bar = MagicMock(**{'value.return_value': 0})
form.label = MagicMock()
form.theme_display = MagicMock(**{'width.return_value': 192, 'generate_preview.return_value': 'preview'})
@ -119,6 +128,30 @@ def test_get_preview(settings):
assert preview == 'preview'
def test_get_preview_not_visible(settings):
"""
Test that the get_preview() method does not return a preview image when display is not visible
"""
# GIVEN: ThemeProgressForm object
Registry.create()
mocked_renderer = MagicMock()
Registry().register('renderer', mocked_renderer)
test_theme_name = 'Test Theme'
test_theme_data = {'name': test_theme_name}
form = _get_theme_progress_form()
form.isVisible = MagicMock(return_value=False)
form.progress_bar = MagicMock(**{'value.return_value': 0})
form.label = MagicMock()
form.theme_display = MagicMock(**{'width.return_value': 192, 'generate_preview.return_value': 'preview'})
form.renderer.width = MagicMock(return_value=1920)
# WHEN: get_preview() is called
preview = form.get_preview(test_theme_name, test_theme_data)
# THEN: Result should be None
assert preview is None
def test_theme_list(qapp):
# GIVEN: ThemeProgressForm object and theme list
test_theme_list = ['Theme 1', 'Theme 2']