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Inputs: added wip/experiment routing system: Shortcut(), RoutingFocused policy, SetShortcutRouting(). (#456, #2637, #3724)

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- InputText() uses Shortcut().
This commit is contained in:
ocornut
2022-09-14 21:47:27 +02:00
parent c59ebb2d71
commit 7ff2d3353c
4 changed files with 259 additions and 18 deletions
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53
imgui_internal.h
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@@ -1277,6 +1277,32 @@ struct ImGuiInputEvent
#define ImGuiKeyOwner_Any ((ImGuiID)0) // Accept key that have an owner, UNLESS a call to SetKeyOwner() explicitely used ImGuiInputFlags_LockThisFrame or ImGuiInputFlags_LockUntilRelease.
#define ImGuiKeyOwner_None ((ImGuiID)-1) // Require key to have no owner.
typedef ImS16 ImGuiKeyRoutingIndex;
// Routing table entry (sizeof() == 16 bytes)
struct ImGuiKeyRoutingData
{
ImGuiKeyRoutingIndex NextEntryIndex;
ImU16 Mods;
ImU8 RoutingNextScore; // Lower is better (0: perfect score)
ImGuiID RoutingCurr;
ImGuiID RoutingNext;
ImGuiKeyRoutingData() { NextEntryIndex = -1; Mods = 0; RoutingNextScore = 255; RoutingCurr = RoutingNext = ImGuiKeyOwner_None; }
};
// Routing table maintain a desired owner for each possible key-chord (key + mods), and setup owner in NewFrame() when mods are matching.
// Stored in main context (1 instance)
struct ImGuiKeyRoutingTable
{
ImGuiKeyRoutingIndex Index[ImGuiKey_NamedKey_COUNT]; // Index of first entry in Entries[]
ImVector<ImGuiKeyRoutingData> Entries;
ImVector<ImGuiKeyRoutingData> EntriesNext; // Double-buffer to avoid reallocation (could use a shared buffer)
ImGuiKeyRoutingTable() { Clear(); }
void Clear() { for (int n = 0; n < IM_ARRAYSIZE(Index); n++) Index[n] = -1; Entries.clear(); EntriesNext.clear(); }
};
// This extend ImGuiKeyData but only for named keys (legacy keys don't support the new features)
// Stored in main context (1 per named key). In the future might be merged into ImGuiKeyData.
struct ImGuiKeyOwnerData
@@ -1310,6 +1336,16 @@ enum ImGuiInputFlags_
// Flags for SetKeyOwner(), SetItemKeyOwner()
ImGuiInputFlags_LockThisFrame = 1 << 6, // Access to key data will requires EXPLICIT owner ID (ImGuiKeyOwner_Any/0 will NOT accepted for polling). Cleared at end of frame. This is useful to make input-owner-aware code steal keys from non-input-owner-aware code.
ImGuiInputFlags_LockUntilRelease = 1 << 7, // Access to key data will requires EXPLICIT owner ID (ImGuiKeyOwner_Any/0 will NOT accepted for polling). Cleared when key is released or at end of frame is not down. This is useful to make input-owner-aware code steal keys from non-input-owner-aware code.
// Flags for Shortcut(), SetShortcutRouting()
// When Focus Routing is enabled, function will call SetShortcutRouting(): Accept inputs if currently in focus stack. Deep-most focused window takes inputs. ActiveId takes inputs over deep-most focused window.
ImGuiInputFlags_RouteFocused = 1 << 8, // Enable focus routing
// [Internal] Mask of which function support which flags
ImGuiInputFlags_SupportedByIsKeyPressed = ImGuiInputFlags_Repeat | ImGuiInputFlags_RepeatRateMask_,
ImGuiInputFlags_SupportedByShortcut = ImGuiInputFlags_Repeat | ImGuiInputFlags_RepeatRateMask_ | ImGuiInputFlags_RouteFocused,
ImGuiInputFlags_SupportedBySetKeyOwner = ImGuiInputFlags_LockThisFrame | ImGuiInputFlags_LockUntilRelease,
ImGuiInputFlags_SupportedBySetItemKeyOwner = ImGuiInputFlags_SupportedBySetKeyOwner | ImGuiInputFlags_CondMask_,
};
//-----------------------------------------------------------------------------
@@ -1707,10 +1743,12 @@ struct ImGuiContext
ImGuiID LastActiveId; // Store the last non-zero ActiveId, useful for animation.
float LastActiveIdTimer; // Store the last non-zero ActiveId timer since the beginning of activation, useful for animation.
// [EXPERIMENTAL] Key/Input Ownership
// [EXPERIMENTAL] Key/Input Ownership + Shortcut Routing system
// - The idea is that instead of "eating" a given key, we can link to an owner.
// - Input query can then read input by specifying ImGuiKeyOwner_Any (== 0), ImGuiKeyOwner_None (== -1) or a custom ID.
// - Routing is requested ahead of time for a given chord (Key + Mods) and granted in NewFrame().
ImGuiKeyOwnerData KeysOwnerData[ImGuiKey_NamedKey_COUNT];
ImGuiKeyRoutingTable KeysRoutingTable;
ImU32 ActiveIdUsingNavDirMask; // Active widget will want to read those nav move requests (e.g. can activate a button and move away from it)
bool ActiveIdUsingAllKeyboardKeys; // Active widget will want to read all keyboard keys inputs. (FIXME: This is a shortcut for not taking ownership of 100+ keys but perhaps best to not have the inconsistency)
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
@@ -2817,12 +2855,19 @@ namespace ImGui
IMGUI_API bool IsMouseClicked(ImGuiMouseButton button, ImGuiID owner_id, ImGuiInputFlags flags = 0);
IMGUI_API bool IsMouseReleased(ImGuiMouseButton button, ImGuiID owner_id);
// [EXPERIMENTAL] Shortcuts
// - ImGuiKeyChord = any ImGuiKey optionally ORed with ImGuiMod_XXX values.
// [EXPERIMENTAL] Shortcut Routing
// - ImGuiKeyChord = a ImGuiKey optionally OR-red with ImGuiMod_Alt/ImGuiMod_Ctrl/ImGuiMod_Shift/ImGuiMod_Super.
// ImGuiKey_C (accepted by functions taking ImGuiKey or ImGuiKeyChord)
// ImGuiKey_C | ImGuiMod_Ctrl (accepted by functions taking ImGuiKeyChord)
// - ONLY ImGuiMod_XXX values are legal to 'OR' with an ImGuiKey. You CANNOT 'OR' two ImGuiKey values.
// ONLY ImGuiMod_XXX values are legal to 'OR' with an ImGuiKey. You CANNOT 'OR' two ImGuiKey values.
// - When using one of the routing flags (e.g. ImGuiInputFlags_RouteFocused): routes requested ahead of time given a chord (key + modifiers) and a routing policy.
// - Routes are resolved during NewFrame(): if keyboard modifiers are matching current ones: SetKeyOwner() is called + route is granted for the frame.
// - Route is granted to a single owner. When multiple requests are made we have policies to select the winning route.
// - Multiple read sites may use a same owner and will all get the granted route.
IMGUI_API bool Shortcut(ImGuiKeyChord key_chord, ImGuiID owner_id = 0, ImGuiInputFlags flags = 0);
IMGUI_API bool SetShortcutRouting(ImGuiKeyChord key_chord, ImGuiID owner_id = 0, ImGuiInputFlags flags = 0, ImGuiWindow* location = NULL);
IMGUI_API bool TestShortcutRouting(ImGuiKeyChord key_chord, ImGuiID owner_id);
IMGUI_API ImGuiKeyRoutingData* GetShortcutRoutingData(ImGuiKeyChord key_chord);
// [EXPERIMENTAL] Focus Scope
// This is generally used to identify a unique input location (for e.g. a selection set)