search actions early port

10 files changed, 1379 insertions, 7 deletions

diff --git a/tagit/actions/__init__.py b/tagit/actions/__init__.py
index c138655..bf99807 100644
--- a/tagit/actions/__init__.py
+++ b/tagit/actions/__init__.py
@@ -97,11 +97,11 @@ class ActionBuilder(BuilderBase):
         'ShowBrowsing': planes.ShowBrowsing,
         'ShowCodash': planes.ShowCodash,
         ## search
-        #'Search': search.Search,
-        #'ShowSelected': search.ShowSelected,
-        #'RemoveSelected': search.RemoveSelected,
+        'Search': search.Search,
+        'ShowSelected': search.ShowSelected,
+        'RemoveSelected': search.RemoveSelected,
         #'SortKey': search.SortKey,
-        #'SortOrder': search.SortOrder,
+        'SortOrder': search.SortOrder,
         ## session
         #'LoadSession': session.LoadSession,
         #'CreateSession': session.CreateSession,
diff --git a/tagit/actions/search.kv b/tagit/actions/search.kv
new file mode 100644
index 0000000..00f6d6d
--- /dev/null
+++ b/tagit/actions/search.kv
@@ -0,0 +1,25 @@
+#:import resource_find kivy.resources.resource_find
+
+<Search>:
+    source: resource_find('atlas://search/search')
+    tooltip: 'Apply the current search filter'
+
+<ShowSelected>:
+    source: resource_find('atlas://search/exclusive_filter')
+    tooltip: 'Show only selected items'
+
+<RemoveSelected>:
+    source: resource_find('atlas://search/exclude_filter')
+    tooltip: 'Exclude selected items'
+
+<SortKey>:
+    source: resource_find('atlas://search/sort_key')
+    tooltip: 'Specify the sort key'
+
+<SortOrder>:
+    source_up: resource_find('atlas://search/sort_order_up')
+    source_down: resource_find('atlas://search/sort_order_down')
+    source: self.source_up 
+    tooltip: 'Sort order'
+
+## EOF ##
diff --git a/tagit/actions/search.py b/tagit/actions/search.py
new file mode 100644
index 0000000..323f53e
--- /dev/null
+++ b/tagit/actions/search.py
@@ -0,0 +1,334 @@
+"""
+
+Part of the tagit module.
+A copy of the license is provided with the project.
+Author: Matthias Baumgartner, 2022
+"""
+# standard imports
+from functools import partial
+import os
+
+# kivy imports
+from kivy.cache import Cache
+from kivy.lang import Builder
+import kivy.properties as kp
+
+# tagit imports
+from tagit import config, dialogues
+from tagit.external.kivy_garden.contextmenu import ContextMenu
+from tagit.utils import clamp, errors
+from tagit.utils import ns
+from tagit.utils.bsfs import ast
+from tagit.widgets import Binding
+from tagit.widgets.filter import FilterAwareMixin
+from tagit.widgets.session import StorageAwareMixin, ConfigAwareMixin
+#from tagit.ai.features.content import ContentFeature, FeatureBuilder # FIXME: mb/port
+#from tagit.parsing.search import sortkeys # FIXME: mb/port
+
+
+# inner-module imports
+from .action import Action
+
+# exports
+__all__ = []
+
+
+## code ##
+
+# load kv
+Builder.load_file(os.path.join(os.path.dirname(__file__), 'search.kv'))
+
+# classes
+class Search(Action, StorageAwareMixin, ConfigAwareMixin):
+    """Apply the current search filter and update the browser."""
+    text = kp.StringProperty('Search')
+
+    # internal category for the cache
+    _CACHE_CATEGORY = 'tagit.search'
+
+    def ktrigger(self, evt):
+        return Binding.check(evt, self.cfg('bindings', 'search', 'search'))
+
+    def on_root(self, wx, root):
+        Action.on_root(self, wx, root)
+        ConfigAwareMixin.on_root(self, wx, root)
+        StorageAwareMixin.on_root(self, wx, root)
+
+    def on_config_changed(self, session, key, value):
+        """Update cache settings."""
+        if self._CACHE_CATEGORY not in Cache._categories:
+            pass
+        elif key == ('ui', 'standalone', 'search', 'cache_items'):
+            value = None if value <= 0 else value
+            Cache._categories[self._CACHE_CATEGORY]['limit'] = value
+        elif key == ('ui', 'standalone', 'search', 'cache_timeout'):
+            value = None if value <= 0 else value
+            Cache._categories[self._CACHE_CATEGORY]['timeout'] = value
+
+    def on_cfg(self, wx, cfg):
+        """Initialize the cache."""
+        if self._CACHE_CATEGORY not in Cache._categories:
+            n_items = self.cfg('ui', 'standalone', 'search', 'cache_items')
+            n_items = None if n_items <= 0 else n_items
+            timeout = self.cfg('ui', 'standalone', 'search', 'cache_timeout')
+            timeout = None if timeout <= 0 else timeout
+            Cache.register(self._CACHE_CATEGORY, n_items, timeout)
+
+    def on_storage_modified(self, sender):
+        # clear the whole cache
+        Cache.remove(self._CACHE_CATEGORY, None)
+
+    def on_predicate_modified(self, sender, predicate, objects, diff):
+        self.apply()
+        return # FIXME: mb/port
+        tbd = set()
+        # walk through cache
+        for ast, sort in Cache._objects[self._CACHE_CATEGORY]:
+            # check ast
+            if ast is not None:
+                for token in ast:
+                    if token.predicate() == predicate:
+                        if predicate in ('tag', 'group') and \
+                           len(set(diff) & set(token.condition())) == 0:
+                               # tag predicate but the tag in question was not changed; skip
+                               continue
+                        tbd.add((ast, sort))
+                        break # no need to search further
+
+            # check sort
+            if sort is not None:
+                if sort.predicate() == predicate:
+                    tbd.add((ast, sort))
+
+        for key in tbd:
+            Cache.remove(self._CACHE_CATEGORY, key)
+
+        # re-apply searches
+        self.apply()
+
+    def apply(self):
+        browser = self.root.browser
+        filter = self.root.filter
+        session = self.root.session
+
+        with browser:
+            # get query
+            query, sort = filter.get_query()
+            # log search
+            # FIXME: mb/port/log
+            #session.log.log_search(
+            #    'filter',
+            #    session.storage.lib.meta,
+            #    (filter.t_head, filter.t_tail),
+            #    (filter.f_head + [browser.frame], filter.f_tail),
+            #    )
+
+            # apply search or fetch it from the cache
+            items = Cache.get(self._CACHE_CATEGORY, (query, sort), None)
+            if items is None:
+                # FIXME: mb/port: consider sort
+                items = list(session.storage.get(ns.bsfs.File, query))
+                Cache.append(self._CACHE_CATEGORY, (query, sort), items)
+
+            # apply search order because it's cheaper to do it here rather
+            # than in the backend (also see uix.kivy.filter.get_query).
+            items = list(reversed(items[:])) if filter.sortdir else items[:]
+            # update browser
+            browser.set_items(items)
+
+
+class ShowSelected(Action):
+    """Show only selected items."""
+    text = kp.StringProperty('Selected only')
+
+    def ktrigger(self, evt):
+        return Binding.check(evt, self.cfg('bindings', 'search', 'exclusive'))
+
+    def apply(self):
+        with self.root.browser as browser:
+            if len(browser.selection) == 0:
+                # silently ignore if no images selected
+                pass
+            elif len(browser.selection) == 1 and list(browser.selection)[0] in browser.folds:
+                # selection is a group
+                self.root.trigger('OpenGroup', list(browser.selection)[0])
+            else:
+                token = ast.filter.IsIn(browser.unfold(browser.selection))
+                self.root.trigger('AddToken', token)
+
+
+class RemoveSelected(Action):
+    """Exclude selected items."""
+    text = kp.StringProperty('Exclude selection')
+
+    def ktrigger(self, evt):
+        return Binding.check(evt, self.cfg('bindings', 'search', 'remove'))
+
+    def apply(self):
+        with self.root.browser as browser:
+            if len(browser.selection) == 0:
+                # silently ignore if no images selected
+                pass
+            else:
+                new_cursor = browser.neighboring_unselected()
+                token = ast.filter.IsNotIn(browser.unfold(browser.selection))
+                self.root.trigger('AddToken', token)
+                # fix frame
+                browser.cursor = new_cursor
+                browser.selection = {browser.cursor} if browser.cursor is not None else  set()
+                self.root.trigger('JumpToCursor')
+
+
+class SortKey(Action):
+    """Select by which property items are ordered."""
+    text = kp.StringProperty('Sort by')
+
+    def apply(self, predicate=None):
+        if predicate is None:
+            x = self.pos[0] + self.width
+            y = self.pos[1] + self.height
+            self.menu.show(x, y)
+        else:
+            self.set_sortkey(predicate)
+
+    def on_root(self, wx, root):
+        super(SortKey, self).on_root(wx, root)
+
+        # Order is essential here:
+        # 1. the menu has to be created
+        # 2. the menu has to be attached to a parent
+        # 3. the menu has to be populated
+        # The visibility has to be triggered after (2) or (3)
+        self.menu = ContextMenu(
+            bounding_box_widget = self.root,
+            cancel_handler_widget = self.root)
+        self.root.add_widget(self.menu)
+        self.menu._on_visible(False)
+
+        # TODO: The whole sortkeys setup is rather brittle
+        # e.g. what happens if new features become available at runtime?
+
+        # default sortkeys
+        return # FIXME: mb/port
+
+        options = sortkeys.scope.library | sortkeys.typedef.anchored # FIXME: mb/port
+        # apply whitelist and blacklist config
+        options -= set(self.cfg('ui', 'standalone', 'search', 'sort_blacklist'))
+        whitelist = set(self.cfg('ui', 'standalone', 'search', 'sort_whitelist'))
+        whitelist = whitelist if len(whitelist) else options
+        options &= whitelist
+        # TODO: If there are several versions of the same feature class, keep only the most frequent
+        # * get feature predicates and their feature class (i.e. name)
+        # * if needed, get their frequencies via Features.Entities(ctrl.stor.num, fid)
+        # For now, all known features are used.
+
+        # populate menu
+        for sortkey in sorted(options):
+            text = sortkey
+            if ContentFeature.is_feature_id(sortkey):
+                text = FeatureBuilder.class_from_guid(sortkey).friendly_guid(sortkey)
+
+            self.menu.add_text_item(
+                text=text,
+                on_release=partial(self.release_wrapper, sortkey)
+            )
+
+    def release_wrapper(self, sortkey, *args):
+        # hide
+        self.menu.hide()
+        # trigger event
+        self.set_sortkey(sortkey)
+
+    def set_sortkey(self, predicate):
+        return # FIXME: mb/port
+        with self.root.filter as filter:
+            try:
+                # TODO: What if a predicate accepts several types (e.g. num and anchored)
+                if predicate in sortkeys.typedef.anchored:
+                    cursor = self.root.browser.cursor
+                    if cursor is None:
+                        raise errors.UserError('an image needs to be selected for similarity sort.')
+                    # TODO: We normally want the anchored search to be sorted most similar
+                    # to least similar (sortdir=False). We could adjust the sortdir automatically.
+                    # Note that VFilterAction_SortOrder would *not* get notified automatically.
+                    filter.sortkey = partial(ast.AnchoredSort, predicate, cursor.guid)
+                elif predicate in sortkeys.typedef.numerical:
+                    filter.sortkey = partial(ast.NumericalSort, predicate)
+                elif predicate in sortkeys.typedef.alphabetical:
+                    filter.sortkey = partial(ast.AlphabeticalSort, predicate)
+                else:
+                    raise errors.UserError('invalid sort key selected')
+
+            except Exception as e:
+                dialogues.Error(text=str(e)).open()
+
+        # stick to cursor
+        self.root.trigger('JumpToCursor')
+
+
+class SortOrder(Action, FilterAwareMixin):
+    """Switch between ascending and descending order."""
+    text = kp.StringProperty('Toggle sort order')
+
+    def on_root(self, wx, root):
+        Action.on_root(self, wx, root)
+        FilterAwareMixin.on_root(self, wx, root)
+
+    def on_sortdir(self, wx, sortdir):
+        if self._image is not None:
+            self._image.source = self.source_down if sortdir else self.source_up
+
+    def on_filter(self, wx, filter):
+        # remove old binding
+        if self.filter is not None:
+            self.filter.unbind(sortdir=self.on_sortdir)
+        # add new binding
+        self.filter = filter
+        if self.filter is not None:
+            self.filter.bind(sortdir=self.on_sortdir)
+            self.on_sortdir(self.filter, self.filter.sortdir)
+
+    def __del__(self):
+        # remove old binding
+        if self.filter is not None:
+            self.filter.unbind(sortdir=self.on_sortdir)
+            self.filter = None
+
+    def apply(self):
+        with self.root.filter as filter, \
+             self.root.browser as browser:
+            filter.sortdir = not filter.sortdir
+            # keep the same field of view as before
+            browser.offset = clamp(browser.n_items - (browser.offset + browser.page_size),
+                                   browser.max_offset)
+
+
+## config ##
+
+config.declare(('ui', 'standalone', 'search', 'sort_blacklist'), config.List(config.String()), [],
+    __name__, 'Blacklisted sortkeys', 'Sort keys that will not be shown in the sort selection. This does not affect whitelisted keys.')
+
+config.declare(('ui', 'standalone', 'search', 'sort_whitelist'), config.List(config.String()), [],
+    __name__, 'Whitelisted sortkeys', 'Sort keys that will always be shown in the sort selection. Overrules blacklisted keys.')
+
+config.declare(('ui', 'standalone', 'search', 'cache_items'), config.Unsigned(), 0,
+    __name__, 'Search cache size', 'Number of searches that are held in cache. Zero means no limit.')
+
+config.declare(('ui', 'standalone', 'search', 'cache_timeout'), config.Unsigned(), 0,
+    __name__, 'Search cache timeout', 'Number of seconds until searches are discarded from the search cache. Zero means no limit.')
+
+# keybindings
+
+config.declare(('bindings', 'search', 'search'),
+    config.Keybind(), Binding.simple(Binding.F5),
+    __name__, Search.text.defaultvalue, Search.__doc__)
+
+config.declare(('bindings', 'search', 'exclusive'),
+    config.Keybind(), Binding.simple(Binding.ENTER, Binding.mCTRL, Binding.mREST),
+    __name__, ShowSelected.text.defaultvalue, ShowSelected.__doc__)
+
+config.declare(('bindings', 'search', 'remove'),
+    config.Keybind(), Binding.simple(Binding.DEL, None, Binding.mALL),
+    __name__, RemoveSelected.text.defaultvalue, RemoveSelected.__doc__)
+
+## EOF ##
diff --git a/tagit/assets/icons/scalable/search/apply.svg b/tagit/assets/icons/scalable/search/apply.svg
new file mode 100644
index 0000000..6549ee6
--- /dev/null
+++ b/tagit/assets/icons/scalable/search/apply.svg
@@ -0,0 +1,144 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="100mm"
+   height="100mm"
+   id="svg2"
+   version="1.1"
+   inkscape:version="0.92.3 (2405546, 2018-03-11)"
+   sodipodi:docname="apply.svg"
+   inkscape:export-filename="../../kivy/search/search.png"
+   inkscape:export-xdpi="7.6199999"
+   inkscape:export-ydpi="7.6199999">
+  <defs
+     id="defs4" />
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0.0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="1.4"
+     inkscape:cx="43.605974"
+     inkscape:cy="205.85327"
+     inkscape:document-units="mm"
+     inkscape:current-layer="layer1"
+     showgrid="false"
+     showguides="true"
+     inkscape:guide-bbox="true"
+     inkscape:snap-global="true"
+     inkscape:snap-bbox="true"
+     fit-margin-top="0"
+     fit-margin-left="0"
+     fit-margin-right="0"
+     fit-margin-bottom="0"
+     inkscape:window-width="1920"
+     inkscape:window-height="1031"
+     inkscape:window-x="0"
+     inkscape:window-y="25"
+     inkscape:window-maximized="1"
+     inkscape:pagecheckerboard="true"
+     units="mm"
+     inkscape:bbox-paths="true"
+     inkscape:bbox-nodes="true"
+     inkscape:snap-bbox-edge-midpoints="true"
+     inkscape:snap-bbox-midpoints="true"
+     inkscape:object-paths="true"
+     inkscape:snap-intersection-paths="true"
+     inkscape:snap-smooth-nodes="true"
+     inkscape:snap-midpoints="true"
+     inkscape:snap-object-midpoints="true"
+     inkscape:snap-center="true"
+     inkscape:snap-text-baseline="true"
+     inkscape:snap-page="true"
+     inkscape:lockguides="false">
+    <sodipodi:guide
+       orientation="0,1"
+       position="13.637059,643.40404"
+       id="guide3788"
+       inkscape:locked="false" />
+    <sodipodi:guide
+       position="188.97638,188.97638"
+       orientation="0,1"
+       id="guide1099"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="188.97638,188.97638"
+       orientation="1,0"
+       id="guide1101"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="233.588,370"
+       orientation="1,0"
+       id="guide1107"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="144.36496,311.42857"
+       orientation="1,0"
+       id="guide1109"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="-77.142857,144.36496"
+       orientation="0,1"
+       id="guide1111"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="5.000315,233.58779"
+       orientation="0,1"
+       id="guide1113"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+  </sodipodi:namedview>
+  <metadata
+     id="metadata7">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(-167.28122,-322.85977)">
+    <rect
+       style="opacity:1;fill:#c8c8c8;fill-opacity:1;stroke:none;stroke-width:17.3116684;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;paint-order:fill markers stroke"
+       id="rect822"
+       width="60.920605"
+       height="170.42346"
+       x="-650.75458"
+       y="-357.06061"
+       transform="matrix(-0.71864414,-0.69537803,0.71864414,-0.69537803,0,0)" />
+    <circle
+       style="opacity:1;fill:none;fill-opacity:1;stroke:#c8c8c8;stroke-width:30;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;paint-order:fill markers stroke"
+       id="path824"
+       cx="400.86923"
+       cy="467.22452"
+       r="129.5289" />
+  </g>
+</svg>
diff --git a/tagit/assets/icons/scalable/search/exclude_filter.svg b/tagit/assets/icons/scalable/search/exclude_filter.svg
new file mode 100644
index 0000000..ff6ebcf
--- /dev/null
+++ b/tagit/assets/icons/scalable/search/exclude_filter.svg
@@ -0,0 +1,173 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="100mm"
+   height="100mm"
+   id="svg2"
+   version="1.1"
+   inkscape:version="0.92.3 (2405546, 2018-03-11)"
+   sodipodi:docname="exclude_filter.svg"
+   inkscape:export-filename="../../kivy/browser/select_single.png"
+   inkscape:export-xdpi="7.6199999"
+   inkscape:export-ydpi="7.6199999">
+  <defs
+     id="defs4" />
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0.0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="2.8"
+     inkscape:cx="171.2059"
+     inkscape:cy="214.89061"
+     inkscape:document-units="mm"
+     inkscape:current-layer="layer1"
+     showgrid="false"
+     showguides="true"
+     inkscape:guide-bbox="true"
+     inkscape:snap-global="true"
+     inkscape:snap-bbox="true"
+     fit-margin-top="0"
+     fit-margin-left="0"
+     fit-margin-right="0"
+     fit-margin-bottom="0"
+     inkscape:window-width="1920"
+     inkscape:window-height="1151"
+     inkscape:window-x="0"
+     inkscape:window-y="25"
+     inkscape:window-maximized="1"
+     inkscape:pagecheckerboard="true"
+     units="mm"
+     inkscape:bbox-paths="true"
+     inkscape:bbox-nodes="true"
+     inkscape:snap-bbox-edge-midpoints="true"
+     inkscape:snap-bbox-midpoints="true"
+     inkscape:object-paths="true"
+     inkscape:snap-intersection-paths="true"
+     inkscape:snap-smooth-nodes="true"
+     inkscape:snap-midpoints="true"
+     inkscape:snap-object-midpoints="true"
+     inkscape:snap-center="true"
+     inkscape:snap-text-baseline="true"
+     inkscape:snap-page="true"
+     inkscape:lockguides="false">
+    <sodipodi:guide
+       orientation="0,1"
+       position="13.637059,643.40404"
+       id="guide3788"
+       inkscape:locked="false" />
+    <sodipodi:guide
+       position="188.97638,188.97638"
+       orientation="0,1"
+       id="guide1099"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="188.97638,188.97638"
+       orientation="1,0"
+       id="guide1101"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="-25.75889,207.87402"
+       orientation="0,1"
+       id="guide837"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="-43.941635,170.07874"
+       orientation="0,1"
+       id="guide854"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="170.07874,284.018"
+       orientation="1,0"
+       id="guide877"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="207.87402,258.09397"
+       orientation="1,0"
+       id="guide879"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+  </sodipodi:namedview>
+  <metadata
+     id="metadata7">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(-167.28122,-322.85977)">
+    <rect
+       style="color:#000000;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;fill:#9d9ef3;fill-opacity:1;fill-rule:nonzero;stroke:#9d9df3;stroke-width:13.7840004;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:23.10000038;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       id="rect4136-3-5"
+       width="156.29443"
+       height="103.39367"
+       x="174.17337"
+       y="382.65268" />
+    <rect
+       style="color:#000000;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;fill:none;fill-opacity:1;fill-rule:nonzero;stroke:#c8c8c8;stroke-width:13.7840004;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:23.10000038;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       id="rect4136-3-5-2"
+       width="156.29443"
+       height="103.39367"
+       x="382.04739"
+       y="382.65268" />
+    <rect
+       style="color:#000000;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;fill:none;fill-opacity:1;fill-rule:nonzero;stroke:#c8c8c8;stroke-width:13.7840004;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:23.10000038;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       id="rect4136-3-5-9"
+       width="156.29443"
+       height="103.39367"
+       x="174.17337"
+       y="537.62592" />
+    <rect
+       style="color:#000000;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;fill:none;fill-opacity:1;fill-rule:nonzero;stroke:#c8c8c8;stroke-width:13.7840004;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:23.10000038;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       id="rect4136-3-5-1"
+       width="156.29443"
+       height="103.39367"
+       x="382.04739"
+       y="537.62592" />
+    <g
+       id="g842"
+       transform="translate(-212.19278,0.94769901)"
+       style="stroke:#ff2f2f;stroke-width:15;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1">
+      <path
+         inkscape:connector-curvature="0"
+         id="path823"
+         d="m 431.92408,400.81253 65.17857,65.17857"
+         style="fill:none;stroke:#ff2f2f;stroke-width:15;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
+      <path
+         inkscape:connector-curvature="0"
+         id="path823-3"
+         d="m 431.92408,465.9911 65.17857,-65.17857"
+         style="fill:none;stroke:#ff2f2f;stroke-width:15;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
+    </g>
+  </g>
+</svg>
diff --git a/tagit/assets/icons/scalable/search/exclusive_filter.svg b/tagit/assets/icons/scalable/search/exclusive_filter.svg
new file mode 100644
index 0000000..d0539f1
--- /dev/null
+++ b/tagit/assets/icons/scalable/search/exclusive_filter.svg
@@ -0,0 +1,203 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="100mm"
+   height="100mm"
+   id="svg2"
+   version="1.1"
+   inkscape:version="0.92.3 (2405546, 2018-03-11)"
+   sodipodi:docname="exclusive_filter.svg"
+   inkscape:export-filename="../../kivy/browser/select_single.png"
+   inkscape:export-xdpi="7.6199999"
+   inkscape:export-ydpi="7.6199999">
+  <defs
+     id="defs4" />
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0.0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="2.8"
+     inkscape:cx="171.2059"
+     inkscape:cy="214.89061"
+     inkscape:document-units="mm"
+     inkscape:current-layer="layer1"
+     showgrid="false"
+     showguides="true"
+     inkscape:guide-bbox="true"
+     inkscape:snap-global="true"
+     inkscape:snap-bbox="true"
+     fit-margin-top="0"
+     fit-margin-left="0"
+     fit-margin-right="0"
+     fit-margin-bottom="0"
+     inkscape:window-width="1920"
+     inkscape:window-height="1151"
+     inkscape:window-x="0"
+     inkscape:window-y="25"
+     inkscape:window-maximized="1"
+     inkscape:pagecheckerboard="true"
+     units="mm"
+     inkscape:bbox-paths="true"
+     inkscape:bbox-nodes="true"
+     inkscape:snap-bbox-edge-midpoints="true"
+     inkscape:snap-bbox-midpoints="true"
+     inkscape:object-paths="true"
+     inkscape:snap-intersection-paths="true"
+     inkscape:snap-smooth-nodes="true"
+     inkscape:snap-midpoints="true"
+     inkscape:snap-object-midpoints="true"
+     inkscape:snap-center="true"
+     inkscape:snap-text-baseline="true"
+     inkscape:snap-page="true"
+     inkscape:lockguides="false">
+    <sodipodi:guide
+       orientation="0,1"
+       position="13.637059,643.40404"
+       id="guide3788"
+       inkscape:locked="false" />
+    <sodipodi:guide
+       position="188.97638,188.97638"
+       orientation="0,1"
+       id="guide1099"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="188.97638,188.97638"
+       orientation="1,0"
+       id="guide1101"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="-25.75889,207.87402"
+       orientation="0,1"
+       id="guide837"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="-43.941635,170.07874"
+       orientation="0,1"
+       id="guide854"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="170.07874,284.018"
+       orientation="1,0"
+       id="guide877"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="207.87402,258.09397"
+       orientation="1,0"
+       id="guide879"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+  </sodipodi:namedview>
+  <metadata
+     id="metadata7">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(-167.28122,-322.85977)">
+    <rect
+       style="color:#000000;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;fill:#9d9ef3;fill-opacity:1;fill-rule:nonzero;stroke:#9d9df3;stroke-width:13.7840004;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:23.10000038;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       id="rect4136-3-5"
+       width="156.29443"
+       height="103.39367"
+       x="174.17337"
+       y="382.65268" />
+    <rect
+       style="color:#000000;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;fill:none;fill-opacity:1;fill-rule:nonzero;stroke:#c8c8c8;stroke-width:13.7840004;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:23.10000038;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       id="rect4136-3-5-2"
+       width="156.29443"
+       height="103.39367"
+       x="382.04739"
+       y="382.65268" />
+    <rect
+       style="color:#000000;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;fill:none;fill-opacity:1;fill-rule:nonzero;stroke:#c8c8c8;stroke-width:13.7840004;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:23.10000038;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       id="rect4136-3-5-9"
+       width="156.29443"
+       height="103.39367"
+       x="174.17337"
+       y="537.62592" />
+    <rect
+       style="color:#000000;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;fill:none;fill-opacity:1;fill-rule:nonzero;stroke:#c8c8c8;stroke-width:13.7840004;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:23.10000038;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       id="rect4136-3-5-1"
+       width="156.29443"
+       height="103.39367"
+       x="382.04739"
+       y="537.62592" />
+    <g
+       id="g842"
+       transform="translate(-4.3187544,0.94769901)"
+       style="stroke:#f39d9d;stroke-width:15;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1">
+      <path
+         inkscape:connector-curvature="0"
+         id="path823"
+         d="m 431.92408,400.81253 65.17857,65.17857"
+         style="fill:none;stroke:#f39d9d;stroke-width:15;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
+      <path
+         inkscape:connector-curvature="0"
+         id="path823-3"
+         d="m 431.92408,465.9911 65.17857,-65.17857"
+         style="fill:none;stroke:#f39d9d;stroke-width:15;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
+    </g>
+    <g
+       id="g842-3"
+       transform="translate(-4.3187697,155.92094)"
+       style="stroke:#f39d9d;stroke-width:15;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1">
+      <path
+         inkscape:connector-curvature="0"
+         id="path823-6"
+         d="m 431.92408,400.81253 65.17857,65.17857"
+         style="fill:none;stroke:#f39d9d;stroke-width:15;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
+      <path
+         inkscape:connector-curvature="0"
+         id="path823-3-7"
+         d="m 431.92408,465.9911 65.17857,-65.17857"
+         style="fill:none;stroke:#f39d9d;stroke-width:15;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
+    </g>
+    <g
+       id="g842-3-5"
+       transform="translate(-212.19278,155.92094)"
+       style="stroke:#f39d9d;stroke-width:15;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1">
+      <path
+         inkscape:connector-curvature="0"
+         id="path823-6-3"
+         d="m 431.92408,400.81253 65.17857,65.17857"
+         style="fill:none;stroke:#f39d9d;stroke-width:15;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
+      <path
+         inkscape:connector-curvature="0"
+         id="path823-3-7-5"
+         d="m 431.92408,465.9911 65.17857,-65.17857"
+         style="fill:none;stroke:#f39d9d;stroke-width:15;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
+    </g>
+  </g>
+</svg>
diff --git a/tagit/assets/icons/scalable/search/sort_key.svg b/tagit/assets/icons/scalable/search/sort_key.svg
new file mode 100644
index 0000000..eda2b6b
--- /dev/null
+++ b/tagit/assets/icons/scalable/search/sort_key.svg
@@ -0,0 +1,158 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="100mm"
+   height="100mm"
+   id="svg2"
+   version="1.1"
+   inkscape:version="0.92.3 (2405546, 2018-03-11)"
+   sodipodi:docname="sort_key.svg"
+   inkscape:export-filename="../../kivy/search/sort_key.png"
+   inkscape:export-xdpi="7.6199999"
+   inkscape:export-ydpi="7.6199999">
+  <defs
+     id="defs4" />
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0.0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="1.979899"
+     inkscape:cx="257.45035"
+     inkscape:cy="244.18321"
+     inkscape:document-units="mm"
+     inkscape:current-layer="layer1"
+     showgrid="false"
+     showguides="true"
+     inkscape:guide-bbox="true"
+     inkscape:snap-global="true"
+     inkscape:snap-bbox="true"
+     fit-margin-top="0"
+     fit-margin-left="0"
+     fit-margin-right="0"
+     fit-margin-bottom="0"
+     inkscape:window-width="1920"
+     inkscape:window-height="1031"
+     inkscape:window-x="0"
+     inkscape:window-y="25"
+     inkscape:window-maximized="1"
+     inkscape:pagecheckerboard="true"
+     units="mm"
+     inkscape:bbox-paths="true"
+     inkscape:bbox-nodes="true"
+     inkscape:snap-bbox-edge-midpoints="true"
+     inkscape:snap-bbox-midpoints="true"
+     inkscape:object-paths="true"
+     inkscape:snap-intersection-paths="true"
+     inkscape:snap-smooth-nodes="true"
+     inkscape:snap-midpoints="true"
+     inkscape:snap-object-midpoints="true"
+     inkscape:snap-center="true"
+     inkscape:snap-text-baseline="true"
+     inkscape:snap-page="true"
+     inkscape:lockguides="false">
+    <sodipodi:guide
+       orientation="0,1"
+       position="13.637059,643.40404"
+       id="guide3788"
+       inkscape:locked="false" />
+    <sodipodi:guide
+       position="188.97638,188.97638"
+       orientation="0,1"
+       id="guide1099"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="188.97638,188.97638"
+       orientation="1,0"
+       id="guide1101"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="233.588,370"
+       orientation="1,0"
+       id="guide1107"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="144.36496,311.42857"
+       orientation="1,0"
+       id="guide1109"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="-77.142857,144.36496"
+       orientation="0,1"
+       id="guide1111"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="5.000315,233.58779"
+       orientation="0,1"
+       id="guide1113"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+  </sodipodi:namedview>
+  <metadata
+     id="metadata7">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(-167.28122,-322.85977)">
+    <rect
+       style="opacity:1;fill:#c8c8c8;fill-opacity:1;stroke:none;stroke-width:2.93663239;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;paint-order:fill markers stroke"
+       id="rect819"
+       width="377.9527"
+       height="53.669292"
+       x="167.28125"
+       y="322.85977" />
+    <rect
+       style="opacity:1;fill:#c8c8c8;fill-opacity:1;stroke:none;stroke-width:2.07651258;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;paint-order:fill markers stroke"
+       id="rect819-3"
+       width="188.97635"
+       height="53.669292"
+       x="167.28125"
+       y="647.14325" />
+    <rect
+       style="opacity:1;fill:#c8c8c8;fill-opacity:1;stroke:none;stroke-width:2.68023014;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;paint-order:fill markers stroke"
+       id="rect819-3-6"
+       width="314.83466"
+       height="53.669292"
+       x="167.28122"
+       y="435.48969" />
+    <rect
+       style="opacity:1;fill:#c8c8c8;fill-opacity:1;stroke:none;stroke-width:2.39655113;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;paint-order:fill markers stroke"
+       id="rect819-3-7"
+       width="251.71654"
+       height="53.669292"
+       x="167.28122"
+       y="541.31647" />
+  </g>
+</svg>
diff --git a/tagit/assets/icons/scalable/search/sort_order_down.svg b/tagit/assets/icons/scalable/search/sort_order_down.svg
new file mode 100644
index 0000000..933a668
--- /dev/null
+++ b/tagit/assets/icons/scalable/search/sort_order_down.svg
@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="100mm"
+   height="100mm"
+   id="svg2"
+   version="1.1"
+   inkscape:version="0.92.3 (2405546, 2018-03-11)"
+   sodipodi:docname="sort_order_down.svg"
+   inkscape:export-filename="../../kivy/search/sort_order_down.png"
+   inkscape:export-xdpi="7.6199999"
+   inkscape:export-ydpi="7.6199999">
+  <defs
+     id="defs4" />
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0.0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="1.979899"
+     inkscape:cx="273.1116"
+     inkscape:cy="189.42948"
+     inkscape:document-units="mm"
+     inkscape:current-layer="layer1"
+     showgrid="false"
+     showguides="true"
+     inkscape:guide-bbox="true"
+     inkscape:snap-global="true"
+     inkscape:snap-bbox="true"
+     fit-margin-top="0"
+     fit-margin-left="0"
+     fit-margin-right="0"
+     fit-margin-bottom="0"
+     inkscape:window-width="1920"
+     inkscape:window-height="1031"
+     inkscape:window-x="0"
+     inkscape:window-y="25"
+     inkscape:window-maximized="1"
+     inkscape:pagecheckerboard="true"
+     units="mm"
+     inkscape:bbox-paths="true"
+     inkscape:bbox-nodes="true"
+     inkscape:snap-bbox-edge-midpoints="true"
+     inkscape:snap-bbox-midpoints="true"
+     inkscape:object-paths="true"
+     inkscape:snap-intersection-paths="true"
+     inkscape:snap-smooth-nodes="true"
+     inkscape:snap-midpoints="true"
+     inkscape:snap-object-midpoints="true"
+     inkscape:snap-center="true"
+     inkscape:snap-text-baseline="true"
+     inkscape:snap-page="true"
+     inkscape:lockguides="false">
+    <sodipodi:guide
+       orientation="0,1"
+       position="13.637059,643.40404"
+       id="guide3788"
+       inkscape:locked="false" />
+    <sodipodi:guide
+       position="188.97638,188.97638"
+       orientation="0,1"
+       id="guide1099"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="188.97638,188.97638"
+       orientation="1,0"
+       id="guide1101"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="233.588,370"
+       orientation="1,0"
+       id="guide1107"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="144.36496,311.42857"
+       orientation="1,0"
+       id="guide1109"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="-77.142857,144.36496"
+       orientation="0,1"
+       id="guide1111"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="5.000315,233.58779"
+       orientation="0,1"
+       id="guide1113"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+  </sodipodi:namedview>
+  <metadata
+     id="metadata7">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(-167.28122,-322.85977)">
+    <g
+       id="g922"
+       transform="rotate(-180,356.2576,511.83615)">
+      <path
+         inkscape:connector-curvature="0"
+         id="path2995"
+         d="m 234.80113,332.39648 v 202.50423 h -57.98394 l 47.89217,78.18799 47.89217,78.18799 47.89031,-78.18799 47.89216,-78.18799 H 310.40006 V 332.39648 Z"
+         style="fill:none;fill-opacity:1;stroke:#c8c8c8;stroke-width:19.07342148;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1" />
+      <g
+         style="fill:#c8c8c8;fill-opacity:1"
+         id="g1182-6"
+         transform="matrix(-0.60812511,0,0,-0.59731394,691.90628,717.38738)">
+        <path
+           sodipodi:type="star"
+           style="fill:#c8c8c8;fill-opacity:1;stroke:none;stroke-width:2.83461595;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1"
+           id="path2995-2"
+           sodipodi:sides="3"
+           sodipodi:cx="619.66785"
+           sodipodi:cy="345.2388"
+           sodipodi:r1="259.16489"
+           sodipodi:r2="129.58244"
+           sodipodi:arg1="0"
+           sodipodi:arg2="1.0471976"
+           inkscape:flatsided="false"
+           inkscape:rounded="0"
+           inkscape:randomized="0"
+           d="M 878.83273,345.2388 684.45906,457.46049 490.0854,569.68218 l 0,-224.44339 0,-224.44337 194.37367,112.2217 z"
+           inkscape:transform-center-x="-64.791235"
+           inkscape:transform-center-y="-2.2785204e-06"
+           transform="matrix(0,0.70615451,-0.73585447,0,660.39089,37.167262)" />
+        <rect
+           style="opacity:1;fill:#c8c8c8;fill-opacity:1;stroke:none;stroke-width:3.10856915;stroke-linecap:square;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:6.21713833, 3.10856917;stroke-dashoffset:0;stroke-opacity:1;paint-order:fill markers stroke"
+           id="rect4750-9"
+           width="386.10318"
+           height="130.35136"
+           x="27.748983"
+           y="-471.52106"
+           transform="rotate(90)" />
+      </g>
+    </g>
+  </g>
+</svg>
diff --git a/tagit/assets/icons/scalable/search/sort_order_up.svg b/tagit/assets/icons/scalable/search/sort_order_up.svg
new file mode 100644
index 0000000..96a70f7
--- /dev/null
+++ b/tagit/assets/icons/scalable/search/sort_order_up.svg
@@ -0,0 +1,166 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="100mm"
+   height="100mm"
+   id="svg2"
+   version="1.1"
+   inkscape:version="0.92.3 (2405546, 2018-03-11)"
+   sodipodi:docname="sort_order_up.svg"
+   inkscape:export-filename="../../kivy/search/sort_order_up.png"
+   inkscape:export-xdpi="7.6199999"
+   inkscape:export-ydpi="7.6199999">
+  <defs
+     id="defs4" />
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0.0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="1.979899"
+     inkscape:cx="195.58239"
+     inkscape:cy="187.40917"
+     inkscape:document-units="mm"
+     inkscape:current-layer="layer1"
+     showgrid="false"
+     showguides="true"
+     inkscape:guide-bbox="true"
+     inkscape:snap-global="true"
+     inkscape:snap-bbox="true"
+     fit-margin-top="0"
+     fit-margin-left="0"
+     fit-margin-right="0"
+     fit-margin-bottom="0"
+     inkscape:window-width="1920"
+     inkscape:window-height="1031"
+     inkscape:window-x="0"
+     inkscape:window-y="25"
+     inkscape:window-maximized="1"
+     inkscape:pagecheckerboard="true"
+     units="mm"
+     inkscape:bbox-paths="true"
+     inkscape:bbox-nodes="true"
+     inkscape:snap-bbox-edge-midpoints="true"
+     inkscape:snap-bbox-midpoints="true"
+     inkscape:object-paths="true"
+     inkscape:snap-intersection-paths="true"
+     inkscape:snap-smooth-nodes="true"
+     inkscape:snap-midpoints="true"
+     inkscape:snap-object-midpoints="true"
+     inkscape:snap-center="true"
+     inkscape:snap-text-baseline="true"
+     inkscape:snap-page="true"
+     inkscape:lockguides="false">
+    <sodipodi:guide
+       orientation="0,1"
+       position="13.637059,643.40404"
+       id="guide3788"
+       inkscape:locked="false" />
+    <sodipodi:guide
+       position="188.97638,188.97638"
+       orientation="0,1"
+       id="guide1099"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="188.97638,188.97638"
+       orientation="1,0"
+       id="guide1101"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="233.588,370"
+       orientation="1,0"
+       id="guide1107"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="144.36496,311.42857"
+       orientation="1,0"
+       id="guide1109"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="-77.142857,144.36496"
+       orientation="0,1"
+       id="guide1111"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="5.000315,233.58779"
+       orientation="0,1"
+       id="guide1113"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+  </sodipodi:namedview>
+  <metadata
+     id="metadata7">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(-167.28122,-322.85977)">
+    <path
+       style="fill:none;fill-opacity:1;stroke:#c8c8c8;stroke-width:19.07342148;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1"
+       d="m 234.80113,332.39648 v 202.50423 h -57.98394 l 47.89217,78.18799 47.89217,78.18799 47.89031,-78.18799 47.89216,-78.18799 H 310.40006 V 332.39648 Z"
+       id="path2995"
+       inkscape:connector-curvature="0" />
+    <g
+       transform="matrix(-0.60812511,0,0,-0.59731394,691.90628,717.38738)"
+       id="g1182-6"
+       style="fill:#c8c8c8;fill-opacity:1">
+      <path
+         transform="matrix(0,0.70615451,-0.73585447,0,660.39089,37.167262)"
+         inkscape:transform-center-y="-2.2785204e-06"
+         inkscape:transform-center-x="-64.791235"
+         d="M 878.83273,345.2388 684.45906,457.46049 490.0854,569.68218 l 0,-224.44339 0,-224.44337 194.37367,112.2217 z"
+         inkscape:randomized="0"
+         inkscape:rounded="0"
+         inkscape:flatsided="false"
+         sodipodi:arg2="1.0471976"
+         sodipodi:arg1="0"
+         sodipodi:r2="129.58244"
+         sodipodi:r1="259.16489"
+         sodipodi:cy="345.2388"
+         sodipodi:cx="619.66785"
+         sodipodi:sides="3"
+         id="path2995-2"
+         style="fill:#c8c8c8;fill-opacity:1;stroke:none;stroke-width:2.83461595;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1"
+         sodipodi:type="star" />
+      <rect
+         transform="rotate(90)"
+         y="-471.52106"
+         x="27.748983"
+         height="130.35136"
+         width="386.10318"
+         id="rect4750-9"
+         style="opacity:1;fill:#c8c8c8;fill-opacity:1;stroke:none;stroke-width:3.10856915;stroke-linecap:square;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:6.21713833, 3.10856916999999999;stroke-dashoffset:0;stroke-opacity:1;paint-order:fill markers stroke" />
+    </g>
+  </g>
+</svg>
diff --git a/tagit/widgets/filter.py b/tagit/widgets/filter.py
index 332ad34..8a7c1a2 100644
--- a/tagit/widgets/filter.py
+++ b/tagit/widgets/filter.py
@@ -168,9 +168,8 @@ class Filter(BoxLayout, ConfigAwareMixin):
         if self.changed:
             self.redraw()
         # issue search
-        # FIXME: mb/port/parsing
-        #if self.run_search:
-        #    self.root.trigger('Search')
+        if self.run_search:
+            self.root.trigger('Search')
 
     def redraw(self):
         self.tokens.clear_widgets()