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IO: rework interleaved keys<>char trickling: only trickle for keys known to be likely to input characters. (#7889, #4921, #4858)

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Amend fa2b318d. Refer to regression test "inputs_io_inputqueue" amended for IMGUI_VERSION_NUM >= 19102
This commit is contained in:
ocornut 2024-08-19 19:02:27 +02:00
parent fabceaf036
commit 092c88dc7b
2 changed files with 20 additions and 8 deletions
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26
imgui.cpp
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@ -8780,8 +8780,9 @@ static int CalcRoutingScore(ImGuiID focus_scope_id, ImGuiID owner_id, ImGuiInput
return 0; return 0;
} }
// We need this to filter some Shortcut() routes when an item e.g. an InputText() is active // - We need this to filter some Shortcut() routes when an item e.g. an InputText() is active
// e.g. ImGuiKey_G won't be considered a shortcut when item is active, but ImGuiMod|ImGuiKey_G can be. // e.g. ImGuiKey_G won't be considered a shortcut when item is active, but ImGuiMod|ImGuiKey_G can be.
// - This is also used by UpdateInputEvents() to avoid trickling in the most common case of e.g. pressing ImGuiKey_G also emitting a G character.
static bool IsKeyChordPotentiallyCharInput(ImGuiKeyChord key_chord) static bool IsKeyChordPotentiallyCharInput(ImGuiKeyChord key_chord)
{ {
// Mimic 'ignore_char_inputs' logic in InputText() // Mimic 'ignore_char_inputs' logic in InputText()
@ -8795,6 +8796,8 @@ static bool IsKeyChordPotentiallyCharInput(ImGuiKeyChord key_chord)
// Return true for A-Z, 0-9 and other keys associated to char inputs. Other keys such as F1-F12 won't be filtered. // Return true for A-Z, 0-9 and other keys associated to char inputs. Other keys such as F1-F12 won't be filtered.
ImGuiKey key = (ImGuiKey)(key_chord & ~ImGuiMod_Mask_); ImGuiKey key = (ImGuiKey)(key_chord & ~ImGuiMod_Mask_);
if (key == ImGuiKey_None)
return false;
return g.KeysMayBeCharInput.TestBit(key); return g.KeysMayBeCharInput.TestBit(key);
} }
@ -9599,9 +9602,9 @@ void ImGui::UpdateInputEvents(bool trickle_fast_inputs)
// Only trickle chars<>key when working with InputText() // Only trickle chars<>key when working with InputText()
// FIXME: InputText() could parse event trail? // FIXME: InputText() could parse event trail?
// FIXME: Could specialize chars<>keys trickling rules for control keys (those not typically associated to characters) // FIXME: Could specialize chars<>keys trickling rules for control keys (those not typically associated to characters)
const bool trickle_interleaved_keys_and_text = (trickle_fast_inputs && g.WantTextInputNextFrame == 1); const bool trickle_interleaved_nonchar_keys_and_text = (trickle_fast_inputs && g.WantTextInputNextFrame == 1);
bool mouse_moved = false, mouse_wheeled = false, key_changed = false, text_inputted = false; bool mouse_moved = false, mouse_wheeled = false, key_changed = false, key_changed_nonchar = false, text_inputted = false;
int mouse_button_changed = 0x00; int mouse_button_changed = 0x00;
ImBitArray<ImGuiKey_KeysData_SIZE> key_changed_mask; ImBitArray<ImGuiKey_KeysData_SIZE> key_changed_mask;
@ -9653,12 +9656,19 @@ void ImGui::UpdateInputEvents(bool trickle_fast_inputs)
IM_ASSERT(key != ImGuiKey_None); IM_ASSERT(key != ImGuiKey_None);
ImGuiKeyData* key_data = GetKeyData(key); ImGuiKeyData* key_data = GetKeyData(key);
const int key_data_index = (int)(key_data - g.IO.KeysData); const int key_data_index = (int)(key_data - g.IO.KeysData);
if (trickle_fast_inputs && key_data->Down != e->Key.Down && (key_changed_mask.TestBit(key_data_index) || text_inputted || mouse_button_changed != 0)) if (trickle_fast_inputs && key_data->Down != e->Key.Down && (key_changed_mask.TestBit(key_data_index) || mouse_button_changed != 0))
break; break;
const bool key_is_potentially_for_char_input = IsKeyChordPotentiallyCharInput(GetMergedModsFromKeys() | key);
if (trickle_interleaved_nonchar_keys_and_text && (text_inputted && !key_is_potentially_for_char_input))
break;
key_data->Down = e->Key.Down; key_data->Down = e->Key.Down;
key_data->AnalogValue = e->Key.AnalogValue; key_data->AnalogValue = e->Key.AnalogValue;
key_changed = true; key_changed = true;
key_changed_mask.SetBit(key_data_index); key_changed_mask.SetBit(key_data_index);
if (trickle_interleaved_nonchar_keys_and_text && !key_is_potentially_for_char_input)
key_changed_nonchar = true;
// Allow legacy code using io.KeysDown[GetKeyIndex()] with new backends // Allow legacy code using io.KeysDown[GetKeyIndex()] with new backends
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO #ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
@ -9672,11 +9682,13 @@ void ImGui::UpdateInputEvents(bool trickle_fast_inputs)
if (io.ConfigFlags & ImGuiConfigFlags_NoKeyboard) if (io.ConfigFlags & ImGuiConfigFlags_NoKeyboard)
continue; continue;
// Trickling Rule: Stop processing queued events if keys/mouse have been interacted with // Trickling Rule: Stop processing queued events if keys/mouse have been interacted with
if (trickle_fast_inputs && ((key_changed && trickle_interleaved_keys_and_text) || mouse_button_changed != 0 || mouse_moved || mouse_wheeled)) if (trickle_fast_inputs && (mouse_button_changed != 0 || mouse_moved || mouse_wheeled))
break;
if (trickle_interleaved_nonchar_keys_and_text && key_changed_nonchar)
break; break;
unsigned int c = e->Text.Char; unsigned int c = e->Text.Char;
io.InputQueueCharacters.push_back(c <= IM_UNICODE_CODEPOINT_MAX ? (ImWchar)c : IM_UNICODE_CODEPOINT_INVALID); io.InputQueueCharacters.push_back(c <= IM_UNICODE_CODEPOINT_MAX ? (ImWchar)c : IM_UNICODE_CODEPOINT_INVALID);
if (trickle_interleaved_keys_and_text) if (trickle_interleaved_nonchar_keys_and_text)
text_inputted = true; text_inputted = true;
} }
else if (e->Type == ImGuiInputEventType_Focus) else if (e->Type == ImGuiInputEventType_Focus)

2
imgui.h
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@ -29,7 +29,7 @@
// Library Version // Library Version
// (Integer encoded as XYYZZ for use in #if preprocessor conditionals, e.g. '#if IMGUI_VERSION_NUM >= 12345') // (Integer encoded as XYYZZ for use in #if preprocessor conditionals, e.g. '#if IMGUI_VERSION_NUM >= 12345')
#define IMGUI_VERSION "1.91.1 WIP" #define IMGUI_VERSION "1.91.1 WIP"
#define IMGUI_VERSION_NUM 19101 #define IMGUI_VERSION_NUM 19102
#define IMGUI_HAS_TABLE #define IMGUI_HAS_TABLE
/* /*