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Emulate browser-style scroll-on-spacebar.

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This commit is contained in:
Michael James Gratton 2016-07-08 18:21:52 +10:00
parent 6009916e0b
commit 1c6745256e
2 changed files with 25 additions and 0 deletions
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23
src/client/conversation-viewer/conversation-viewer.vala
View file

@ -705,6 +705,13 @@ public class ConversationViewer : Gtk.Stack {
return true;
});
// Capture key events on the email's web views to allow
// scrolling on Space, etc.
conversation_message.web_view.key_press_event.connect(on_conversation_key_press);
foreach (ConversationMessage attached in conversation_email.attached_messages) {
attached.web_view.key_press_event.connect(on_conversation_key_press);
}
Gtk.ListBoxRow row = new Gtk.ListBoxRow();
row.show();
row.add(conversation_email);
@ -846,6 +853,22 @@ public class ConversationViewer : Gtk.Stack {
return SearchState.SEARCH_FOLDER;
}
[GtkCallback]
private bool on_conversation_key_press(Gtk.Widget widget, Gdk.EventKey event) {
// Override some key bindings to get something that works more
// like a browser page.
if (event.keyval == Gdk.Key.space) {
Gtk.ScrollType dir = Gtk.ScrollType.PAGE_DOWN;
if ((event.state & Gdk.ModifierType.SHIFT_MASK) ==
Gdk.ModifierType.SHIFT_MASK) {
dir = Gtk.ScrollType.PAGE_UP;
}
conversation_page.scroll_child(dir, false);
return true;
}
return false;
}
private ConversationEmail? conversation_email_for_id(Geary.EmailIdentifier id) {
return (ConversationEmail) email_to_row.get(id).get_child();
}

2
ui/conversation-viewer.ui
View file

@ -34,8 +34,10 @@
<object class="GtkScrolledWindow" id="conversation_page">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="events">GDK_KEY_PRESS_MASK | GDK_STRUCTURE_MASK</property>
<property name="hscrollbar_policy">never</property>
<property name="shadow_type">in</property>
<signal name="key-press-event" handler="on_conversation_key_press" swapped="no"/>
<child>
<object class="GtkViewport">
<property name="visible">True</property>