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recursively focus labels

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This commit is contained in:
thecozies 2024-03-02 11:12:06 -06:00
parent beec29217c
commit 3b962c5b7c
1 changed files with 40 additions and 8 deletions
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48
src/ui/ui_renderer.cpp
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@ -16,6 +16,7 @@
#include "RmlUi/Core.h"
#include "RmlUi/Debugger.h"
#include "RmlUi/../../Source/Core/Elements/ElementLabel.h"
#include "RmlUi_Platform_SDL.h"
#include "InterfaceVS.hlsl.spirv.h"
@ -668,19 +669,50 @@ bool can_focus(Rml::Element* element) {
return element->GetOwnerDocument() != nullptr && element->GetProperty(Rml::PropertyId::TabIndex)->Get<Rml::Style::TabIndex>() != Rml::Style::TabIndex::None;
}
//! Copied from lib\RmlUi\Source\Core\Elements\ElementLabel.cpp
// Get the first descending element whose tag name matches one of tags.
static Rml::Element* TagMatchRecursive(const Rml::StringList& tags, Rml::Element* element)
{
const int num_children = element->GetNumChildren();
for (int i = 0; i < num_children; i++)
{
Rml::Element* child = element->GetChild(i);
for (const Rml::String& tag : tags)
{
if (child->GetTagName() == tag)
return child;
}
Rml::Element* matching_element = TagMatchRecursive(tags, child);
if (matching_element)
return matching_element;
}
return nullptr;
}
Rml::Element* get_target(Rml::ElementDocument* document, Rml::Element* element) {
// Labels can have targets, so check if this element is a label.
if (element->GetTagName() == "label") {
// Check if the label has a "for" property.
Rml::String for_value = element->GetAttribute<Rml::String>("for", "");
Rml::ElementLabel* labelElement = (Rml::ElementLabel*)element;
const Rml::String target_id = labelElement->GetAttribute<Rml::String>("for", "");
// If there is a value for the "for" property, find that element and return it if it exists.
if (!for_value.empty()) {
Rml::Element* target_element = document->GetElementById(for_value);
if (target_element) {
return target_element;
}
if (target_id.empty())
{
const Rml::StringList matching_tags = {"button", "input", "textarea", "progress", "progressbar", "select"};
return TagMatchRecursive(matching_tags, element);
}
else
{
Rml::Element* target = labelElement->GetElementById(target_id);
if (target != element)
return target;
}
return nullptr;
}
// Return the element directly if no target exists.
return element;