public void AugmentQuickInfoSession(IQuickInfoSession session, IList <object> qiContent, out ITrackingSpan applicableToSpan)
        {
            applicableToSpan = null;

            if (session == null || qiContent == null || qiContent.Count > 0 || !WESettings.Instance.Css.ShowBrowserTooltip)
            {
                return;
            }

            SnapshotPoint?point = session.GetTriggerPoint(_buffer.CurrentSnapshot);

            if (!point.HasValue)
            {
                return;
            }

            var       tree = CssEditorDocument.FromTextBuffer(_buffer);
            ParseItem item = tree.StyleSheet.ItemBeforePosition(point.Value.Position);

            if (item == null || !item.IsValid)
            {
                return;
            }

            ICssSchemaInstance schema = CssSchemaManager.SchemaManager.GetSchemaForItem(_rootSchema, item);

            Tuple <ParseItem, ICssCompletionListEntry> tuple = GetEntriesAndPoint(item, point.Value, schema);

            if (tuple == null)
            {
                return;
            }

            ParseItem tipItem             = tuple.Item1;
            ICssCompletionListEntry entry = tuple.Item2;

            if (tipItem == null || entry == null)
            {
                return;
            }

            var ruleSet = item.FindType <RuleSet>();

            //If the selector's full name would require computation (it's nested), compute it and add it to the output
            if (ruleSet != null && ruleSet.Parent.FindType <RuleSet>() != null)
            {
                qiContent.Add(LessDocument.GetLessSelectorName(ruleSet));
            }

            applicableToSpan = _buffer.CurrentSnapshot.CreateTrackingSpan(tipItem.Start, tipItem.Length, SpanTrackingMode.EdgeNegative);

            string syntax = entry.GetSyntax(schema.Version);
            string b      = entry.GetAttribute("browsers");

            if (string.IsNullOrEmpty(b) && tipItem.Parent != null && tipItem.Parent is Declaration)
            {
                b = schema.GetProperty(((Declaration)tipItem.Parent).PropertyName.Text).GetAttribute("browsers");
                if (string.IsNullOrEmpty(syntax))
                {
                    syntax = tipItem.Text;
                }
            }

            if (!string.IsNullOrEmpty(syntax))
            {
                //var example = CreateExample(syntax);
                qiContent.Add("Example: " + syntax);
            }

            Dictionary <string, string> browsers = GetBrowsers(b);

            qiContent.Add(CreateBrowserList(browsers));
        }
Exemplo n.º 2
0
        public void AugmentQuickInfoSession(IQuickInfoSession session, IList <object> qiContent, out ITrackingSpan applicableToSpan)
        {
            applicableToSpan = null;

            if (!EnsureTreeInitialized() || session == null || qiContent == null || qiContent.Count > 0 || !WESettings.GetBoolean(WESettings.Keys.ShowBrowserTooltip))
            {
                return;
            }

            SnapshotPoint?point = session.GetTriggerPoint(_buffer.CurrentSnapshot);

            if (!point.HasValue)
            {
                return;
            }

            ParseItem item = _tree.StyleSheet.ItemBeforePosition(point.Value.Position);

            if (item == null || !item.IsValid)
            {
                return;
            }

            ParseItem theOne = null;
            ICssCompletionListEntry entry  = null;
            ICssSchemaInstance      schema = CssSchemaManager.SchemaManager.GetSchemaForItem(_rootSchema, item);

            // Declaration
            Declaration dec = item.FindType <Declaration>();

            if (dec != null && dec.PropertyName != null && dec.PropertyName.ContainsRange(point.Value.Position, 1))
            {
                entry  = schema.GetProperty(dec.PropertyName.Text);
                theOne = dec.PropertyName;
            }
            else if (dec != null && dec.IsValid && dec.Values.TextStart <= point.Value.Position && dec.Values.TextAfterEnd >= point.Value.Position)
            {
                entry = schema.GetProperty(dec.PropertyName.Text);
                if (entry != null)
                {
                    var list = schema.GetPropertyValues(entry.DisplayText);
                    theOne = dec.StyleSheet.ItemFromRange(point.Value.Position, 0);
                    entry  = list.SingleOrDefault(r => r.DisplayText.Equals(theOne.Text, StringComparison.OrdinalIgnoreCase));
                }
            }

            // Pseudo class
            if (entry == null)
            {
                PseudoClassSelector pseudoClass = item.FindType <PseudoClassSelector>();
                if (pseudoClass != null)
                {
                    entry  = schema.GetPseudo(pseudoClass.Text);
                    theOne = pseudoClass;
                }
            }

            // Pseudo class function
            if (entry == null)
            {
                PseudoClassFunctionSelector pseudoClassFunction = item.FindType <PseudoClassFunctionSelector>();
                if (pseudoClassFunction != null)
                {
                    entry  = schema.GetPseudo(pseudoClassFunction.Text);
                    theOne = pseudoClassFunction;
                }
            }

            // Pseudo element
            if (entry == null)
            {
                PseudoElementSelector pseudoElement = item.FindType <PseudoElementSelector>();
                if (pseudoElement != null)
                {
                    entry  = schema.GetPseudo(pseudoElement.Text);
                    theOne = pseudoElement;
                }
            }

            // Pseudo element function
            if (entry == null)
            {
                PseudoElementFunctionSelector pseudoElementFunction = item.FindType <PseudoElementFunctionSelector>();
                if (pseudoElementFunction != null)
                {
                    entry  = schema.GetPseudo(pseudoElementFunction.Text);
                    theOne = pseudoElementFunction;
                }
            }

            // @-directive
            if (entry == null)
            {
                AtDirective atDirective = item.Parent as AtDirective;
                if (atDirective != null && atDirective.Keyword != null)
                {
                    entry  = schema.GetAtDirective("@" + atDirective.Keyword.Text);
                    theOne = atDirective.Keyword;
                }
            }

            if (entry != null)
            {
                applicableToSpan = _buffer.CurrentSnapshot.CreateTrackingSpan(theOne.Start, theOne.Length, SpanTrackingMode.EdgeNegative);

                string syntax = entry.GetSyntax(schema.Version);
                string b      = entry.GetAttribute("browsers");

                if (string.IsNullOrEmpty(b) && theOne.Parent != null && theOne.Parent is Declaration)
                {
                    b = schema.GetProperty(((Declaration)theOne.Parent).PropertyName.Text).GetAttribute("browsers");
                    if (string.IsNullOrEmpty(syntax))
                    {
                        syntax = theOne.Text;
                    }
                }

                if (!string.IsNullOrEmpty(syntax))
                {
                    qiContent.Add("Example: " + syntax);
                }

                Dictionary <string, string> browsers = GetBrowsers(b);
                qiContent.Add(CreateBrowserList(browsers));
            }
        }