private static void CollapseProjectHierarchyItems(Project project, ISet <VsHierarchyItem> ignoredHierarcyItems)
{
VsHierarchyItem projectHierarchyItem = GetHierarchyItemForProject(project);
IVsUIHierarchyWindow solutionExplorerWindow = GetSolutionExplorerHierarchyWindow();
if (solutionExplorerWindow == null)
{
// If the solution explorer is collapsed since opening VS, this value is null. In such a case, simply exit early.
return;
}
// processCallback return values:
// 0 continue,
// 1 don't recurse into,
// -1 stop
projectHierarchyItem.WalkDepthFirst(
fVisible: true,
processCallback:
(VsHierarchyItem currentHierarchyItem, object callerObject, out object newCallerObject) =>
{
newCallerObject = null;
if (!ignoredHierarcyItems.Contains(currentHierarchyItem))
{
CollapseVsHierarchyItem(currentHierarchyItem, solutionExplorerWindow);
}
return(0);
},
callerObject: null);
}
private static async Task CollapseProjectHierarchyItemsAsync(EnvDTE.Project project, ISet <VsHierarchyItem> ignoredHierarcyItems)
{
var projectHierarchyItem = await VsHierarchyItem.FromDteProjectAsync(project);
var solutionExplorerWindow = await GetSolutionExplorerHierarchyWindowAsync();
if (solutionExplorerWindow == null)
{
// If the solution explorer is collapsed since opening VS, this value is null. In such a case, simply exit early.
return;
}
// processCallback return values:
// 0 continue,
// 1 don't recurse into,
// -1 stop
await projectHierarchyItem.WalkDepthFirstAsync(
fVisible : true,
processCallbackAsync :
async(VsHierarchyItem currentHierarchyItem, object callerObject) =>
{
if (!ignoredHierarcyItems.Contains(currentHierarchyItem))
{
await CollapseVsHierarchyItemAsync(currentHierarchyItem, solutionExplorerWindow);
}
return(0, null);
},
callerObject : null);
}
private static ICollection <VsHierarchyItem> GetExpandedProjectHierarchyItems(EnvDTE.Project project)
{
VsHierarchyItem projectHierarchyItem = GetHierarchyItemForProject(project);
IVsUIHierarchyWindow solutionExplorerWindow = GetSolutionExplorerHierarchyWindow();
if (solutionExplorerWindow == null)
{
// If the solution explorer is collapsed since opening VS, this value is null. In such a case, simply exit early.
return(new VsHierarchyItem[0]);
}
var expandedItems = new List <VsHierarchyItem>();
// processCallback return values:
// 0 continue,
// 1 don't recurse into,
// -1 stop
projectHierarchyItem.WalkDepthFirst(
fVisible: true,
processCallback:
(VsHierarchyItem vsItem, object callerObject, out object newCallerObject) =>
{
newCallerObject = null;
if (IsVsHierarchyItemExpanded(vsItem, solutionExplorerWindow))
{
expandedItems.Add(vsItem);
}
return(0);
},
callerObject: null);
return(expandedItems);
}
private static async Task <ICollection <VsHierarchyItem> > GetExpandedProjectHierarchyItemsAsync(EnvDTE.Project project)
{
var projectHierarchyItem = await VsHierarchyItem.FromDteProjectAsync(project);
var solutionExplorerWindow = await GetSolutionExplorerHierarchyWindowAsync();
if (solutionExplorerWindow == null)
{
// If the solution explorer is collapsed since opening VS, this value is null. In such a case, simply exit early.
return(Array.Empty <VsHierarchyItem>());
}
var expandedItems = new List <VsHierarchyItem>();
await NuGetUIThreadHelper.JoinableTaskFactory.SwitchToMainThreadAsync();
// processCallback return values:
// 0 continue,
// 1 don't recurse into,
// -1 stop
await projectHierarchyItem.WalkDepthFirstAsync(
fVisible : true,
processCallbackAsync :
async(VsHierarchyItem vsItem, object callerObject) =>
{
if (await IsVsHierarchyItemExpandedAsync(vsItem, solutionExplorerWindow))
{
expandedItems.Add(vsItem);
}
return(0, null);
},
callerObject : null);
return(expandedItems);
}
private static void CollapseVsHierarchyItem(VsHierarchyItem vsHierarchyItem, IVsUIHierarchyWindow vsHierarchyWindow)
{
if (vsHierarchyItem == null || vsHierarchyWindow == null)
{
return;
}
vsHierarchyWindow.ExpandItem(vsHierarchyItem.UIHierarchy(), vsHierarchyItem.VsItemID, EXPANDFLAGS.EXPF_CollapseFolder);
}
private static void CollapseVsHierarchyItem(VsHierarchyItem vsHierarchyItem, IVsUIHierarchyWindow vsHierarchyWindow)
{
ThreadHelper.ThrowIfNotOnUIThread();
if (vsHierarchyItem == null ||
vsHierarchyWindow == null)
{
return;
}
vsHierarchyWindow.ExpandItem(AsVsUIHierarchy(vsHierarchyItem), vsHierarchyItem.VsItemID, EXPANDFLAGS.EXPF_CollapseFolder);
}
private static async Task CollapseVsHierarchyItemAsync(VsHierarchyItem vsHierarchyItem, IVsUIHierarchyWindow vsHierarchyWindow)
{
if (vsHierarchyItem == null ||
vsHierarchyWindow == null)
{
return;
}
await NuGetUIThreadHelper.JoinableTaskFactory.SwitchToMainThreadAsync();
vsHierarchyWindow.ExpandItem(AsVsUIHierarchy(vsHierarchyItem), vsHierarchyItem.VsItemID, EXPANDFLAGS.EXPF_CollapseFolder);
}
private static bool IsVsHierarchyItemExpanded(VsHierarchyItem hierarchyItem, IVsUIHierarchyWindow uiWindow)
{
if (!hierarchyItem.IsExpandable())
{
return(false);
}
const uint expandedStateMask = (uint)__VSHIERARCHYITEMSTATE.HIS_Expanded;
uint itemState;
uiWindow.GetItemState(hierarchyItem.UIHierarchy(), hierarchyItem.VsItemID, expandedStateMask, out itemState);
return((__VSHIERARCHYITEMSTATE)itemState == __VSHIERARCHYITEMSTATE.HIS_Expanded);
}
private static async Task <bool> IsVsHierarchyItemExpandedAsync(VsHierarchyItem hierarchyItem, IVsUIHierarchyWindow uiWindow)
{
if (!await hierarchyItem.IsExpandableAsync())
{
return(false);
}
const uint expandedStateMask = (uint)__VSHIERARCHYITEMSTATE.HIS_Expanded;
uint itemState;
await NuGetUIThreadHelper.JoinableTaskFactory.SwitchToMainThreadAsync();
uiWindow.GetItemState(AsVsUIHierarchy(hierarchyItem), hierarchyItem.VsItemID, expandedStateMask, out itemState);
return((__VSHIERARCHYITEMSTATE)itemState == __VSHIERARCHYITEMSTATE.HIS_Expanded);
}
private static IVsUIHierarchy AsVsUIHierarchy(VsHierarchyItem hierarchyItem)
{
ThreadHelper.ThrowIfNotOnUIThread();
return(hierarchyItem.VsHierarchy as IVsUIHierarchy);
}
