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LocationQuery: fix bugs and omissions

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This commit is contained in:
Fischlurch 2017-10-28 02:06:05 +02:00
parent 800407637a
commit f0a32c986a
1 changed files with 17 additions and 9 deletions
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26
src/gui/interact/gen-node-location-query.hpp
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@ -144,11 +144,11 @@ namespace interact {
{
size_t depth = 0;
Rec const& node = drillDown (tree_, path, pos, depth);
if (pos != depth-1)
if (depth != pos)
throw error::State(_Fmt{"unable to drill down to depth %d: "
"element %s at pos %d in path %s is in "
"contradiction to actual UI structure"}
% pos
% (pos+1)
% (depth<path.size()? path[depth] : Symbol::BOTTOM)
% depth
% path
@ -168,6 +168,14 @@ namespace interact {
return Symbol{lib::pull_last (tree_.keys())}; //////////////////////////////////////////////TICKET #1113 : warning use of Symbol table becomes obsolete when EntryID relies on Literal
}
Literal
resolveElm (UICoord const& path, size_t depth)
{
REQUIRE (path.isPresent(depth));
return depth==UIC_WINDOW? GenNodeLocationQuery::determineAnchor(path)
: path[depth];
}
static ChildIter
childSequence (Rec const& node)
{
@ -180,16 +188,16 @@ namespace interact {
}
static Rec const&
Rec const&
drillDown (Rec const& tree, UICoord const& path, size_t maxDepth, size_t& depth)
{
if (depth<maxDepth and path.isPresent(depth))
{
const char* pathElm = path[depth];
if (hasNode(tree, pathElm, depth))
const char* pathElm = resolveElm (path, depth);
if (hasNode (tree, pathElm, depth))
{
++depth;
return drillDown (descendInto(tree,pathElm,depth), path, maxDepth, depth);
return drillDown (descendInto(tree,pathElm,depth-1), path, maxDepth, depth);
}
}
return tree;
@ -197,9 +205,9 @@ namespace interact {
/** does the guiding tree contain the element as requested by the UICoord path?
* @remark this function abstracts a special asymmetry of the tree representation:
* at `level==UIC_PERSP` (level 2), the perspective info is packed into the type
* meta attribute. This was done on purpose, to verify our design is able to
* handle such implementation intricacies, which we expect to encounter
* at `level==UIC_PERSP` (the second level), the perspective info is packed into
* the type meta attribute. This was done on purpose, to verify our design is able
* to handle such implementation intricacies, which we expect to encounter
* when navigating the widgets of a real-world UI toolkit set
*/
static bool