ui.py

            return {'RUNNING_MODAL'}
        else:
            self.report({'WARNING'}, "View3D not found, cannot run operator")
            return {'CANCELLED'}


class RunAssetBarWithContext(bpy.types.Operator):
    """Regenerate cobweb"""
    bl_idname = "object.run_assetbar_fix_context"
    bl_label = "BlnenderKit assetbar with fixed context"
    bl_description = "Run assetbar with fixed context"
    bl_options = {'REGISTER', 'UNDO', 'INTERNAL'}

    # def modal(self, context, event):
    #     return {'RUNNING_MODAL'}

    def execute(self, context):
        C_dict = utils.get_fake_context(context)
        if C_dict.get('window'):  # no 3d view, no asset bar.
            preferences = bpy.context.preferences.addons['blenderkit'].preferences
            if preferences.experimental_features:
                bpy.ops.view3d.blenderkit_asset_bar_widget(C_dict, 'INVOKE_REGION_WIN', keep_running=True,
                                                           do_search=False)

            else:
                bpy.ops.view3d.blenderkit_asset_bar(C_dict, 'INVOKE_REGION_WIN', keep_running=True, do_search=False)
        return {'FINISHED'}


classes = (
    AssetBarOperator,
    # AssetBarExperiment,
    AssetDragOperator,
    RunAssetBarWithContext,
    TransferBlenderkitData,
    UndoWithContext,
    ParticlesDropDialog
)

# store keymap items here to access after registration
addon_keymapitems = []


# @persistent
def pre_load(context):
    ui_props = bpy.context.scene.blenderkitUI
    ui_props.assetbar_on = False
    ui_props.turn_off = True
    preferences = bpy.context.preferences.addons['blenderkit'].preferences
    preferences.login_attempt = False


def register_ui():
    global handler_2d, handler_3d

    for c in classes:
        bpy.utils.register_class(c)

    args = (None, bpy.context)

    handler_2d = bpy.types.SpaceView3D.draw_handler_add(draw_callback_2d_progress, args, 'WINDOW', 'POST_PIXEL')
    handler_3d = bpy.types.SpaceView3D.draw_handler_add(draw_callback_3d_progress, args, 'WINDOW', 'POST_VIEW')

    wm = bpy.context.window_manager

    # spaces solved by registering shortcut to Window. Couldn't register object mode before somehow.
    if not wm.keyconfigs.addon:
        return
    km = wm.keyconfigs.addon.keymaps.new(name="Window", space_type='EMPTY')
    # asset bar shortcut
    kmi = km.keymap_items.new(AssetBarOperator.bl_idname, 'SEMI_COLON', 'PRESS', ctrl=False, shift=False)
    kmi.properties.keep_running = False
    kmi.properties.do_search = False
    addon_keymapitems.append(kmi)
    # fast rating shortcut
    wm = bpy.context.window_manager
    km = wm.keyconfigs.addon.keymaps['Window']
    kmi = km.keymap_items.new(ratings.FastRateMenu.bl_idname, 'F', 'PRESS', ctrl=False, shift=False)
    addon_keymapitems.append(kmi)
    kmi = km.keymap_items.new(upload.FastMetadata.bl_idname, 'F', 'PRESS', ctrl=True, shift=False)
    addon_keymapitems.append(kmi)


def unregister_ui():
    global handler_2d, handler_3d
    pre_load(bpy.context)

    bpy.types.SpaceView3D.draw_handler_remove(handler_2d, 'WINDOW')
    bpy.types.SpaceView3D.draw_handler_remove(handler_3d, 'WINDOW')

    for c in classes:
        bpy.utils.unregister_class(c)

    wm = bpy.context.window_manager
    if not wm.keyconfigs.addon:
        return

    km = wm.keyconfigs.addon.keymaps.get('Window')
    if km:
        for kmi in addon_keymapitems:
            km.keymap_items.remove(kmi)
    del addon_keymapitems[:]