Roblox backend: text proxy is opt-in (SetTextProxy), remove SetTextProxyDebug; new example main.client.luau
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@@ -1127,8 +1127,23 @@ function ImGui_ImplRoblox_Init(parent, render_scale)
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end
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end)
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-- Text proxy: a hidden TextBox holds focus while an imgui text field is active, so the OS gives us typing (any
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-- layout/unicode), paste (Ctrl+V) and copy/cut (Ctrl+C/X of the proxy's text = imgui's current selection).
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bd.PendingChars = {}
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connect(UserInputService.WindowFocused, function() ImGui.GetIO():AddFocusEvent(true) end)
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connect(UserInputService.WindowFocusReleased, function() ImGui.GetIO():AddFocusEvent(false) end)
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end
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-- Text proxy (opt-in, ImGui_ImplRoblox.SetTextProxy(true)): a hidden TextBox holds focus while an imgui text field is
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-- active, so the OS gives us typing (any layout/unicode), paste (Ctrl+V) and copy/cut (Ctrl+C/X of imgui's selection).
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-- Off: typing comes from KeyCodes (printable ASCII), no OS clipboard.
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function ImGui_ImplRoblox_SetTextProxy(enabled)
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local bd = ImGui_ImplRoblox_GetBackendData()
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if not enabled then
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if bd.Proxy then bd.Proxy:Destroy(); bd.Proxy = nil end
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proxy_focused = false
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return
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end
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if bd.Proxy then return end
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local proxy = Instance.new("TextBox")
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proxy.Name = "TextProxy"
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proxy.BackgroundTransparency = 1
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@@ -1140,12 +1155,11 @@ function ImGui_ImplRoblox_Init(parent, render_scale)
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proxy.ClearTextOnFocus = false
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proxy.TextEditable = true
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proxy.Text = ""
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proxy.Parent = gui
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bd.Proxy, bd.ProxyText, bd.PendingChars = proxy, "", {}
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proxy.Parent = bd.Gui
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bd.Proxy, bd.ProxyText = proxy, ""
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-- Clicking elsewhere (or Roblox taking focus) ends the edit, like clicking outside the field in imgui.
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-- (Text is polled in NewFrame instead of using Text changed signals: those are deferred in Roblox.)
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connect(proxy.FocusLost, function()
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if bd.ProxyDebug then print("[ImGui text proxy] FocusLost, mouse over imgui:", ImGui.GetIO().WantCaptureMouse) end
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proxy.FocusLost:Connect(function()
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if bd.ProxyReleasing then return end
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-- Roblox drops TextBox focus on any click, including clicks inside imgui (e.g. moving the cursor within the
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-- same field). Those must not end the edit: just recapture next frame. Only a click outside imgui ends it.
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@@ -1154,9 +1168,6 @@ function ImGui_ImplRoblox_Init(parent, render_scale)
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local g = ImGui.GetCurrentContext()
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if g and g.ActiveId ~= 0 and g.ActiveId == bd.ProxyActiveId then ImGui.ClearActiveID() end
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end)
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connect(UserInputService.WindowFocused, function() ImGui.GetIO():AddFocusEvent(true) end)
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connect(UserInputService.WindowFocusReleased, function() ImGui.GetIO():AddFocusEvent(false) end)
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end
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function ImGui_ImplRoblox_Shutdown()
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@@ -1201,15 +1212,16 @@ function ImGui_ImplRoblox_NewFrame()
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-- otherwise the KeyCode fallback keeps typing working.
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local proxy = bd.Proxy
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local g = ImGui.GetCurrentContext()
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local focused_box = UserInputService:GetFocusedTextBox()
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if io.WantTextInput and g.ActiveId ~= 0 then
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local focused_box = proxy and UserInputService:GetFocusedTextBox()
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if not proxy then
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-- text proxy disabled: KeyCode typing only
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elseif io.WantTextInput and g.ActiveId ~= 0 then
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if g.ActiveId ~= bd.ProxyActiveId or g.ActiveIdIsJustActivated or g.IO.MouseClicked[0] then bd.ProxyActiveId = g.ActiveId; bd.ProxyLostId = nil end -- (re)clicking a field recaptures
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local mouse_up = not (io.MouseDown[0] or io.MouseDown[1] or io.MouseDown[2])
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if focused_box ~= proxy and mouse_up and bd.ProxyLostId ~= g.ActiveId and (focused_box == nil or not focused_box:IsDescendantOf(game)) then
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bd.ProxyText = proxy.Text -- what it already holds is not new input (else re-typing it would collapse imgui's selection)
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proxy:CaptureFocus()
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focused_box = UserInputService:GetFocusedTextBox()
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if bd.ProxyDebug then print("[ImGui text proxy] CaptureFocus ->", focused_box == proxy and "focused" or ("FAILED, focused = " .. tostring(focused_box))) end
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end
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elseif focused_box == proxy then
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bd.ProxyReleasing = true
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@@ -1217,13 +1229,11 @@ function ImGui_ImplRoblox_NewFrame()
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bd.ProxyReleasing = false
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focused_box = nil
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end
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local was_focused = proxy_focused
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proxy_focused = focused_box == proxy
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proxy_focused = proxy ~= nil and focused_box == proxy
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local used_proxy_text = false
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if proxy_focused then
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-- 1) whatever the OS put in the proxy since last frame (typing, paste, cut) replaces imgui's selection
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local text = proxy.Text
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if text ~= bd.ProxyText and bd.ProxyDebug then print("[ImGui text proxy] text", string.format("%q", text), "was", string.format("%q", tostring(bd.ProxyText))) end
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if text ~= bd.ProxyText and text ~= bd.ProxyLastRaw then -- (LastRaw: don't re-send if our reset hasn't applied yet)
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bd.ProxyLastRaw = text
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-- InputText ignores characters while Ctrl is held (upstream, so shortcuts don't type); a paste arrives with
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@@ -1259,7 +1269,6 @@ function ImGui_ImplRoblox_NewFrame()
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proxy.Text = sel
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bd.ProxyLastRaw = nil
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bd.ProxyText = sel
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if bd.ProxyDebug then print("[ImGui text proxy] mirror selection", string.format("%q", sel)) end
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end
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-- keep imgui's selection fully selected in the proxy, so Ctrl+C copies it and typing/Ctrl+V replaces it
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local want_sel, want_cur = (#sel > 0) and 1 or -1, #sel + 1
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@@ -1275,7 +1284,6 @@ function ImGui_ImplRoblox_NewFrame()
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if not used_proxy_text then for _, c in ipairs(pending) do io:AddInputCharacter(c) end end
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table.clear(pending)
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end
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if bd.ProxyDebug and was_focused ~= proxy_focused then print("[ImGui text proxy] proxy_focused =", proxy_focused) end
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-- While the mouse is over imgui, make the tiles Active so Roblox stops passing clicks/wheel to the game (camera zoom etc.)
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local want = io.WantCaptureMouse
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@@ -1317,7 +1325,7 @@ ImGui_ImplRoblox = {
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SetRenderScale = ImGui_ImplRoblox_SetRenderScale,
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SetRenderRate = ImGui_ImplRoblox_SetRenderRate,
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SetOverlay = ImGui_ImplRoblox_SetOverlay,
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SetTextProxyDebug = function(on) ImGui_ImplRoblox_GetBackendData().ProxyDebug = on end, -- prints focus/text events
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SetTextProxy = ImGui_ImplRoblox_SetTextProxy,
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CreateTexture = ImGui_ImplRoblox_CreateTexture,
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DestroyTexture = ImGui_ImplRoblox_DestroyTexture,
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GetRenderScale = function() return ImGui_ImplRoblox_GetBackendData().Scale end,
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