async Task UpdateStyleParent(WorkspaceObject owner, string mimeType, CancellationToken token)
{
var styleParent = owner as IPolicyProvider;
RemovePolicyChangeHandler();
if (string.IsNullOrEmpty(mimeType))
{
mimeType = "text/plain";
}
var mimeTypes = IdeServices.DesktopService.GetMimeTypeInheritanceChain(mimeType);
if (styleParent != null)
{
policyContainer = styleParent.Policies;
}
else
{
policyContainer = MonoDevelop.Projects.Policies.PolicyService.DefaultPolicies;
}
var currentPolicy = policyContainer.Get <TextStylePolicy> (mimeTypes);
policyContainer.PolicyChanged += HandlePolicyChanged;
((DefaultSourceEditorOptions)textEditor.Options).UpdateStylePolicy(currentPolicy);
var context = await EditorConfigService.GetEditorConfigContext(textEditor.FileName, token);
if (context == null)
{
return;
}
((DefaultSourceEditorOptions)textEditor.Options).SetContext(context);
}
/// <summary>
/// Copies the policies defined in another container
/// </summary>
/// <param name='other'>
/// A policy container from which to copy the policies
/// </param>
/// <remarks>
/// Policies of this container are removed or replaced by policies defined in the
/// provided container.
/// </remarks>
public void CopyFrom(PolicyContainer other)
{
if (other.policies == null && policies == null)
{
return;
}
// Add and update policies
if (other.policies != null)
{
foreach (KeyValuePair <PolicyKey, object> p in other.policies)
{
object oldVal;
if (policies == null || !policies.TryGetValue(p.Key, out oldVal) || oldVal == null || !oldVal.Equals(p.Value))
{
if (policies == null)
{
policies = new PolicyDictionary();
}
policies [p.Key] = p.Value;
OnPolicyChanged(p.Key.PolicyType, p.Key.Scope);
}
}
}
// Remove policies
if (policies != null)
{
foreach (PolicyKey k in policies.Keys.ToArray())
{
if (other.policies == null || !other.policies.ContainsKey(k))
{
policies.Remove(k);
OnPolicyChanged(k.PolicyType, k.Scope);
}
}
}
}