Modernized progress window GUI

Following the refactoring that has been initiated in pdfmasher's
"vala" branch, I pushed more progress window logic into the
core.

The UI code is now a bit dumber than it used to be, and the core
now directly decides when the progress window is shown and
hidden. The "job finished" notification is also directly sent by the
core. Job description update logic is handled by a core gui
textfield.

Job description contsants also moved to the core, triggering
a localisation migration from "ui" to "core".

cocoa/inter/all.py

@@ -1,3 +1,4 @@
+from cocoa.inter import PyTextField, PyProgressWindow
 from .deletion_options import PyDeletionOptions
 from .details_panel import PyDetailsPanel
 from .directory_outline import PyDirectoryOutline

cocoa/inter/app.py

@@ -1,23 +1,8 @@
 import logging
 
 from objp.util import pyref, dontwrap
-from jobprogress import job
-import cocoa
-from cocoa import install_exception_hook, install_cocoa_logger, proxy
+from cocoa import install_exception_hook, install_cocoa_logger, patch_threaded_job_performer, proxy
 from cocoa.inter import PyFairware, FairwareView
-from hscommon.trans import trget
-
-from core.app import JobType
-
-tr = trget('ui')
-
-JOBID2TITLE = {
-    JobType.Scan: tr("Scanning for duplicates"),
-    JobType.Load: tr("Loading"),
-    JobType.Move: tr("Moving"),
-    JobType.Copy: tr("Copying"),
-    JobType.Delete: tr("Sending to Trash"),
-}
 
 class DupeGuruView(FairwareView):
     def askYesNoWithPrompt_(self, prompt: str) -> bool: pass
@@ -26,16 +11,14 @@ class DupeGuruView(FairwareView):
     def selectDestFileWithPrompt_extension_(self, prompt: str, extension: str) -> str: pass
 
 class PyDupeGuruBase(PyFairware):
-    FOLLOW_PROTOCOLS = ['Worker']
-    
     @dontwrap
     def _init(self, modelclass):
         logging.basicConfig(level=logging.WARNING, format='%(levelname)s %(message)s')
         install_exception_hook()
         install_cocoa_logger()
+        patch_threaded_job_performer()
         appdata = proxy.getAppdataPath()
         self.model = modelclass(self, appdata)
-        self.progress = cocoa.ThreadedJobPerformer()
     
     #---Sub-proxies
     def detailsPanel(self) -> pyref:
@@ -56,6 +39,9 @@ class PyDupeGuruBase(PyFairware):
     def ignoreListDialog(self) -> pyref:
         return self.model.ignore_list_dialog
     
+    def progressWindow(self) -> pyref:
+        return self.model.progress_window
+    
     def deletionOptions(self) -> pyref:
         return self.model.deletion_options
     
@@ -157,31 +143,6 @@ class PyDupeGuruBase(PyFairware):
     def setCopyMoveDestType_(self, copymove_dest_type: int):
         self.model.options['copymove_dest_type'] = copymove_dest_type
     
-    #---Worker
-    def getJobProgress(self) -> object: # NSNumber
-        try:
-            return self.progress.last_progress
-        except AttributeError:
-            # I have *no idea* why this can possible happen (last_progress is always set by
-            # create_job() *before* any threaded job notification, which shows the progress panel,
-            # is sent), but it happens anyway, so there we go. ref: #106
-            return -1
-    
-    def getJobDesc(self) -> str:
-        try:
-            return self.progress.last_desc
-        except AttributeError:
-            # see getJobProgress
-            return ''
-    
-    def cancelJob(self):
-        self.progress.job_cancelled = True
-    
-    def jobCompleted_(self, jobid: str):
-        result = self.model._job_completed(jobid, self.progress.last_error)
-        if not result:
-            self.progress.reraise_if_error()
-    
     #--- model --> view
     @dontwrap
     def open_path(self, path):
@@ -191,18 +152,6 @@ class PyDupeGuruBase(PyFairware):
     def reveal_path(self, path):
         proxy.revealPath_(str(path))
     
-    @dontwrap
-    def start_job(self, jobid, func, args=()):
-        try:
-            j = self.progress.create_job()
-            args = tuple([j] + list(args))
-            self.progress.run_threaded(func, args=args)
-        except job.JobInProgressError:
-            proxy.postNotification_userInfo_('JobInProgress', None)
-        else:
-            ud = {'desc': JOBID2TITLE[jobid], 'jobid':jobid}
-            proxy.postNotification_userInfo_('JobStarted', ud)
-    
     @dontwrap
     def ask_yes_no(self, prompt):
         return self.callback.askYesNoWithPrompt_(prompt)