tagging ported

6 files changed, 782 insertions, 7 deletions

diff --git a/tagit/actions/__init__.py b/tagit/actions/__init__.py
index bf99807..6416a4b 100644
--- a/tagit/actions/__init__.py
+++ b/tagit/actions/__init__.py
@@ -19,6 +19,7 @@ from . import misc
 from . import planes
 from . import search
 #from . import session
+from . import tagging
 
 # exports
 __all__: typing.Sequence[str] = (
@@ -85,8 +86,8 @@ class ActionBuilder(BuilderBase):
         #'RotateLeft': objects.RotateLeft,
         #'RotateRight': objects.RotateRight,
         #'DeleteObject': objects.DeleteObject,
-        #'AddTag': objects.AddTag,
-        #'EditTag': objects.EditTag,
+        'AddTag': tagging.AddTag,
+        'EditTag': tagging.EditTag,
         #'SetRank1': objects.SetRank1,
         #'SetRank2': objects.SetRank2,
         #'SetRank3': objects.SetRank3,
diff --git a/tagit/actions/tagging.kv b/tagit/actions/tagging.kv
new file mode 100644
index 0000000..53ba926
--- /dev/null
+++ b/tagit/actions/tagging.kv
@@ -0,0 +1,11 @@
+#:import resource_find kivy.resources.resource_find
+
+<AddTag>:
+    source: resource_find('atlas://objects/add_tag')
+    tooltip: 'Add tags to items'
+
+<EditTag>:
+    source: resource_find('atlas://objects/edit_tag')
+    tooltip: 'Edit tags of items'
+   
+## EOF ##
diff --git a/tagit/actions/tagging.py b/tagit/actions/tagging.py
new file mode 100644
index 0000000..c6d920d
--- /dev/null
+++ b/tagit/actions/tagging.py
@@ -0,0 +1,162 @@
+"""
+
+Part of the tagit module.
+A copy of the license is provided with the project.
+Author: Matthias Baumgartner, 2022
+"""
+# standard imports
+from functools import reduce, partial
+import operator
+import os
+
+# kivy imports
+from kivy.lang import Builder
+import kivy.properties as kp
+
+# tagit imports
+from tagit import config, dialogues
+from tagit.utils import ns
+from tagit.utils.bsfs import Namespace
+from tagit.widgets import Binding
+
+# inner-module imports
+from .action import Action
+
+# constants
+TAGS_SEPERATOR = ','
+TAG_PREFIX = Namespace('http://example.com/me/tag')
+
+# exports
+__all__ = []
+
+
+## code ##
+
+# load kv
+Builder.load_file(os.path.join(os.path.dirname(__file__), 'tagging.kv'))
+
+# classes
+class AddTag(Action):
+    """Add tags to the selected items."""
+    text = kp.StringProperty('Add tag')
+
+    def ktrigger(self, evt):
+        return Binding.check(evt, self.cfg('bindings', 'objects', 'add_tag'))
+
+    def apply(self):
+        if len(self.root.browser.selection) > 0:
+            tags = self.root.session.storage.all(ns.bsfs.Tag).label(node=True)
+            dlg = dialogues.SimpleInput(
+                    suggestions=set(tags.values()),
+                    suggestion_sep=TAGS_SEPERATOR)
+            dlg.bind(on_ok=partial(self.add_tags, tags))
+            dlg.open()
+
+        else:
+            dialogues.Error(text='You must select some images first.').open()
+
+    def add_tags(self, tags, wx):
+        # user-specified labels
+        labels = {t.strip() for t in wx.text.split(TAGS_SEPERATOR) if len(t.strip())}
+        # label to tag mapping
+        lut = {label: tag for tag, label in tags.items()}
+        # get previous tags
+        tags = {lut[lbl] for lbl in labels if lbl in lut}
+        # create new tag nodes and set their label
+        # FIXME: deny adding tags if tag vocabulary is fixed (ontology case)
+        # FIXME: replace with proper tag factory
+        for lbl in labels:
+            if lbl not in lut:
+                tag = self.root.session.storage.node(ns.bsfs.Tag, TAG_PREFIX[lbl])
+                tag.set(ns.bst.label, lbl)
+                tags.add(tag)
+        with self.root.browser as browser, \
+             self.root.session as session:
+            # get objects
+            ents = browser.unfold(browser.selection)
+            # collect tags
+            tags = reduce(operator.add, tags) # FIXME: mb/port: pass set once supported by Nodes.set
+            # set tags
+            ents.set(ns.bse.tag, tags)
+            session.dispatch('on_predicate_modified', 'tag', ents, tags)
+            # cursor and selection might become invalid. Will be fixed in Browser.
+
+
+class EditTag(Action):
+    """Edit tags of the selected items"""
+    text = kp.StringProperty('Edit tags')
+
+    def ktrigger(self, evt):
+        return Binding.check(evt, self.cfg('bindings', 'objects', 'edit_tag'))
+
+    def apply(self):
+        with self.root.browser as browser:
+            if len(browser.selection) > 0:
+                # get all known tags
+                all_tags = self.root.session.storage.all(ns.bsfs.Tag).label(node=True)
+                # get selection tags
+                ent_tags = browser.unfold(browser.selection).tag.label(node=True)
+                if len(ent_tags) == 0:
+                    text = ''
+                else:
+                    sep = TAGS_SEPERATOR + ' '
+                    text = sep.join(sorted(set.intersection(*ent_tags.values())))
+
+                dlg = dialogues.SimpleInput(
+                        text=text,
+                        suggestions=set(all_tags.values()),
+                        suggestion_sep=TAGS_SEPERATOR,
+                        )
+                dlg.bind(on_ok=partial(self.edit_tag, ent_tags, all_tags))
+                dlg.open()
+
+            else:
+                dialogues.Error(text='You must select some images first.').open()
+
+    def edit_tag(self, original, tags, wx):
+        """Add or remove tags from images.
+        *original* and *modified* are strings, split at *TAGS_SEPERATOR*.
+        Tags are added and removed with respect to the difference between those two sets.
+        """
+        # user-specified labels
+        labels = {t.strip() for t in wx.text.split(TAGS_SEPERATOR) if len(t.strip())}
+        # label differences
+        original_labels = {lbl for lbls in original.values() for lbl in lbls}
+        removed_labels = original_labels - labels
+        added_labels = labels - original_labels
+        # get tags of removed labels
+        removed = {tag for tag, lbl in tags.items() if lbl in removed_labels}
+        removed = reduce(operator.add, removed)
+        # get tags of added labels
+        # FIXME: deny adding tags if tag vocabulary is fixed (ontology case)
+        lut = {label: tag for tag, label in tags.items()}
+        added = {lut[lbl] for lbl in added_labels if lbl in lut}
+        # FIXME: replace with proper tag factory
+        for lbl in added_labels:
+            if lbl not in lut:
+                tag = self.root.session.storage.node(ns.bsfs.Tag, TAG_PREFIX[lbl])
+                tag.set(ns.bst.label, lbl)
+                added.add(tag)
+        added = reduce(operator.add, added)
+        # apply differences
+        with self.root.browser as browser, \
+             self.root.session as session:
+            ents = browser.unfold(browser.selection)
+            ents.set(ns.bse.tag, added)
+            #ents.remove(ns.bse.tag, removed) # FIXME: mb/port
+            session.dispatch('on_predicate_modified', 'tag', ents, added | removed)
+            # cursor and selection might become invalid. Will be fixed in Browser.
+
+## config ##
+
+# keybindings
+
+config.declare(('bindings', 'objects', 'add_tag'),
+    config.Keybind(), Binding.simple('t', Binding.mCTRL, Binding.mSHIFT),
+    __name__, AddTag.text.defaultvalue, AddTag.__doc__)
+
+config.declare(('bindings', 'objects', 'edit_tag'),
+    config.Keybind(), Binding.simple('e',  Binding.mCTRL),
+    __name__, EditTag.text.defaultvalue, EditTag.__doc__)
+
+## EOF ##
diff --git a/tagit/apps/port-config.yaml b/tagit/apps/port-config.yaml
index 872ac29..33afbbd 100644
--- a/tagit/apps/port-config.yaml
+++ b/tagit/apps/port-config.yaml
@@ -37,6 +37,8 @@ ui:
       - SelectNone
       - SelectMulti
       - SelectRange
+      - AddTag
+      - EditTag
       - ShowHelp
     browser:
       maxcols: 8
@@ -45,9 +47,9 @@ ui:
       sidebar_left:
       - Menu
       - ShowDashboard
-      #- AddTag
-      #- EditTag
       - AddToken
+      - AddTag
+      - EditTag
       #- CreateGroup
       #- DissolveGroup
       - SelectAll
@@ -94,9 +96,9 @@ ui:
       - SelectRange
       - SelectAdditive
       - SelectSubtractive
-    #  tagging:
-    #  - AddTag
-    #  - EditTag
+      tagging:
+      - AddTag
+      - EditTag
     #  - SetRank1
     #  - SetRank3
     #  - SetRank5
diff --git a/tagit/assets/icons/scalable/tagging/add_tag.svg b/tagit/assets/icons/scalable/tagging/add_tag.svg
new file mode 100644
index 0000000..6e73d56
--- /dev/null
+++ b/tagit/assets/icons/scalable/tagging/add_tag.svg
@@ -0,0 +1,296 @@
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diff --git a/tagit/assets/icons/scalable/tagging/edit_tag.svg b/tagit/assets/icons/scalable/tagging/edit_tag.svg
new file mode 100644
index 0000000..c7d64e1
--- /dev/null
+++ b/tagit/assets/icons/scalable/tagging/edit_tag.svg
@@ -0,0 +1,303 @@
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