This default instance was causing double the number of preferred height
events, which was likely creating a race for ConversationWebView. This
might (should?) fix plain text email with quotes sometimes showing up
with a vastly incorrect height.
To ensure that a PageState is constructed properly, make ClientWebView
abstract and use replace the one direct use of the class in the accounts
editor for the signature with a new subclass.
See #283
This allows people with dark themes to apply style to the cmoposer's
body editor as well as to conversation bodies. Note that this CSS does
not get sent, so WYSIWYG will break if people choose to do this.
Also renames the user CSS file from user-message.css to user-style.css,
but still looks for the old name for now.
Fixes https://bugzilla.gnome.org/show_bug.cgi?id=714129
* src/client/components/client-web-view.vala (ClientWebView): Add
is_content_loaded property and content_loaded signal, update and fire
when getting a contentLoaded message from the WebProcess.
* ui/client-web-view.js: Fire the contentLoaded message when loading is
complete. Add ClientPageStateTest test case to ensure it is working
fine.
* test/client/components/client-web-view-test-case.vala
(ClientWebViewTestCase::load_body_fixture): Use is_content_loaded
rather than is_loading as the test for loading having finished, since
we're actually interested in when the JS has finished loaded, not the
resources.
