Jobs dialog:Allow stopping of waiting jobs and add Stop all jobs button

src/calibre/gui2/dialogs/jobs.ui

@@ -14,7 +14,7 @@
    <string>Active Jobs</string>
   </property>
   <property name="windowIcon">
-   <iconset resource="../../../../resources/images.qrc">
+   <iconset resource="../../../work/calibre/resources/images.qrc">
     <normaloff>:/images/jobs.svg</normaloff>:/images/jobs.svg</iconset>
   </property>
   <layout class="QVBoxLayout">
@@ -57,6 +57,13 @@
      </property>
     </widget>
    </item>
+   <item>
+    <widget class="QPushButton" name="stop_all_jobs_button">
+     <property name="text">
+      <string>Stop &amp;all jobs</string>
+     </property>
+    </widget>
+   </item>
   </layout>
  </widget>
  <customwidgets>
@@ -67,7 +74,7 @@
   </customwidget>
  </customwidgets>
  <resources>
-  <include location="../../../../resources/images.qrc"/>
+  <include location="../../../work/calibre/resources/images.qrc"/>
  </resources>
  <connections/>
 </ui>

src/calibre/gui2/jobs.py

@@ -193,6 +193,12 @@ class JobManager(QAbstractTableModel):
                          _('Job has already run')).exec_()
         self.server.kill_job(job)
 
+    def kill_all_jobs(self):
+        for job in self.jobs:
+            if isinstance(job, DeviceJob) or job.duration is not None:
+                continue
+            self.server.kill_job(job)
+
     def terminate_all_jobs(self):
         self.server.killall()
 
@@ -230,6 +236,8 @@ class JobsDialog(QDialog, Ui_JobsDialog):
                         self.kill_job)
         self.connect(self.details_button, SIGNAL('clicked()'),
                         self.show_details)
+        self.connect(self.stop_all_jobs_button, SIGNAL('clicked()'),
+                self.kill_all_jobs)
         self.connect(self, SIGNAL('kill_job(int, PyQt_PyObject)'),
                         self.jobs_view.model().kill_job)
         self.pb_delegate = ProgressBarDelegate(self)
@@ -247,7 +255,8 @@ class JobsDialog(QDialog, Ui_JobsDialog):
             self.jobs_view.show_details(index)
             return
 
-
+    def kill_all_jobs(self):
+        self.model.kill_all_jobs()
 
     def closeEvent(self, e):
         self.jobs_view.write_settings()

src/calibre/gui2/tools.py

@@ -156,8 +156,6 @@ def convert_bulk_ebook(parent, db, book_ids, out_format=None):
                 dtitle = repr(mi.title)
             desc = _('Convert book %d of %d (%s)') % (i + 1, total, dtitle)
 
-            desc = _('Convert book %d of %d (%s)') % (i + 1, total, repr(mi.title))
-
             args = [in_file, out_file.name, lrecs]
             temp_files.append(out_file)
             jobs.append(('gui_convert', args, desc, d.output_format.upper(), book_id, temp_files))
@@ -178,6 +176,7 @@ def convert_bulk_ebook(parent, db, book_ids, out_format=None):
             'source format was found.') % (len(res), total),
             msg).exec_()
 
+    jobs.reverse()
     return jobs, changed, bad
 
 def fetch_scheduled_recipe(recipe, script):

src/calibre/utils/ipc/job.py

@@ -30,6 +30,7 @@ class BaseJob(object):
         self.done2         = None
         self.killed        = False
         self.failed        = False
+        self.kill_on_start = False
         self.start_time    = None
         self.result        = None
         self.duration      = None

src/calibre/utils/ipc/server.py

@@ -170,6 +170,7 @@ class Server(Thread):
             except Empty:
                 pass
 
+            # Get notifications from worker process
             for worker in self.workers:
                 while True:
                     try:
@@ -179,6 +180,7 @@ class Server(Thread):
                     except Empty:
                         break
 
+            # Remove finished jobs
             for worker in [w for w in self.workers if not w.is_alive]:
                 self.workers.remove(worker)
                 job = worker.job
@@ -191,19 +193,27 @@ class Server(Thread):
                 job.duration = time.time() - job.start_time
                 self.changed_jobs_queue.put(job)
 
+            # Start new workers
             if len(self.pool) + len(self.workers) < self.pool_size:
                 try:
                     self.pool.append(self.launch_worker())
                 except Exception:
                     pass
 
+            # Start waiting jobs
             if len(self.pool) > 0 and len(self.waiting_jobs) > 0:
                 job = self.waiting_jobs.pop()
-                worker = self.pool.pop()
                 job.start_time = time.time()
-                worker.start_job(job)
-                self.workers.append(worker)
-                job.log_path = worker.log_path
+                if job.kill_on_start:
+                    job.duration = 0.0
+                    job.returncode = 1
+                    job.killed = job.failed = True
+                    job.result = None
+                else:
+                    worker = self.pool.pop()
+                    worker.start_job(job)
+                    self.workers.append(worker)
+                    job.log_path = worker.log_path
                 self.changed_jobs_queue.put(job)
 
             while True:
@@ -217,11 +227,13 @@ class Server(Thread):
         self.kill_queue.put(job)
 
     def killall(self):
-        for job in self.workers:
-            self.kill_queue.put(job)
+        for worker in self.workers:
+            self.kill_queue.put(worker.job)
 
     def _kill_job(self, job):
-        if job.start_time is None: return
+        if job.start_time is None:
+            job.kill_on_start = True
+            return
         for worker in self.workers:
             if job is worker.job:
                 worker.kill()