Allow adding the "Manage Snippets" action to the toolbar, for easy access

imgsrc/snippets.svg

@@ -0,0 +1,42 @@
+<?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"
+   version="1.1"
+   width="128"
+   height="128"
+   id="svg2">
+  <defs
+     id="defs4" />
+  <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
+     transform="translate(0,-924.36218)"
+     id="layer1">
+    <text
+       x="6.9818249"
+       y="1031.5"
+       transform="scale(1.0074934,0.99256234)"
+       id="text2985"
+       xml:space="preserve"
+       style="font-size:119.50392914px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans"><tspan
+         x="6.9818249"
+         y="1031.5"
+         id="tspan2987">{|}</tspan></text>
+  </g>
+</svg>

src/calibre/gui2/tweak_book/boss.py

@@ -1353,6 +1353,10 @@ class Boss(QObject):
     def insert_character(self):
         self.gui.insert_char.show()
 
+    def manage_snippets(self):
+        from calibre.gui2.tweak_book.editor.snippets import UserSnippets
+        UserSnippets(self.gui).exec_()
+
     # Shutdown {{{
 
     def quit(self):

src/calibre/gui2/tweak_book/editor/snippets.py

@@ -548,6 +548,7 @@ class UserSnippets(Dialog):
 
     def __init__(self, parent=None):
         Dialog.__init__(self, _('Create/Edit snippets'), 'snippet-editor', parent=parent)
+        self.setWindowIcon(QIcon(I('snippets.png')))
 
     def setup_ui(self):
         self.setWindowIcon(QIcon(I('modified.png')))

src/calibre/gui2/tweak_book/ui.py

@@ -460,6 +460,9 @@ class Main(MainWindow):
                 'Split HTML file at multiple locations'))
         self.action_compare_book = treg('diff.png', _('&Compare to another book'), self.boss.compare_book, 'compare-book', (), _(
             'Compare to another book'))
+        self.action_manage_snippets = treg(
+            'snippets.png', _('Manage &Snippets'), self.boss.manage_snippets, 'manage-snippets', (), _(
+                'Manage user created snippets'))
 
         self.plugin_menu_actions = []