Make workorder-recheck work again

docs/workorder-recheck.rst

@@ -3,13 +3,13 @@ workorder-recheck
 
 .. dfhack-tool::
     :summary: Recheck start conditions for a manager workorder.
-    :tags: unavailable fort workorders
+    :tags: fort workorders
 
-Sets the status to ``Checking`` (from ``Active``) of the selected work order (in
-the ``j-m`` or ``u-m`` screens). This makes the manager reevaluate its
-conditions. This is especially useful for an order that had its conditions met
-when it was started, but the requisite items have since disappeared and the
-workorder is now generating job cancellation spam.
+Sets the status to ``Checking`` (from ``Active``) of the selected work order.
+This makes the manager reevaluate its conditions. This is especially useful
+for an order that had its conditions met when it was started, but the requisite
+items have since disappeared and the workorder is now generating job cancellation
+spam.
 
 Usage
 -----

workorder-recheck.lua

@@ -1,20 +1,103 @@
 -- Resets the selected work order to the `Checking` state
---[====[
-
-workorder-recheck
-=================
-Sets the status to ``Checking`` (from ``Active``) of the selected work order (in the ``j-m`` or ``u-m`` screens).
-This makes the manager reevaluate its conditions.
-]====]
-local scr = dfhack.gui.getCurViewscreen()
-if df.viewscreen_jobmanagementst:is_instance(scr) then
-    local orders = df.global.world.manager_orders
-    local idx = scr.sel_idx
-    if idx < #orders then
-        orders[idx].status.active = false
+
+--@ module = true
+
+local widgets = require('gui.widgets')
+local overlay = require('plugins.overlay')
+
+local function set_current_inactive()
+    local scrConditions = df.global.game.main_interface.info.work_orders.conditions
+    if scrConditions.open then
+        local order = scrConditions.wq
+        order.status.active = false
     else
-        qerror("Invalid order selected")
+        qerror("Order conditions is not open")
     end
-else
-    qerror('Must be called on the manager screen (j-m or u-m)')
 end
+
+local function is_current_active()
+    local scrConditions = df.global.game.main_interface.info.work_orders.conditions
+    local order = scrConditions.wq
+    return order.status.active
+end
+
+-- -------------------
+-- RecheckOverlay
+--
+
+local focusString = 'dwarfmode/Info/WORK_ORDERS/Conditions'
+
+RecheckOverlay = defclass(RecheckOverlay, overlay.OverlayWidget)
+RecheckOverlay.ATTRS{
+    default_pos={x=6,y=8},
+    default_enabled=true,
+    viewscreens=focusString,
+    -- width is the sum of lengths of `[` + `Ctrl+A` + `: ` + button.label + `]`
+    frame={w=1 + 6 + 2 + 16 + 1, h=3},
+}
+
+local function areTabsInTwoRows()
+    -- get the tile above the order status icon
+    local pen = dfhack.screen.readTile(7, 7, false)
+    -- in graphics mode, `0` when one row, something else when two (`67` aka 'C' from "Creatures")
+    -- in ASCII mode, `32` aka ' ' when one row, something else when two (`196` aka '-' from tab frame's top)
+    return (pen.ch ~= 0 and pen.ch ~= 32)
+end
+
+function RecheckOverlay:updateTextButtonFrame()
+    local twoRows = areTabsInTwoRows()
+    if (self._twoRows == twoRows) then return false end
+
+    self._twoRows = twoRows
+    local frame = twoRows
+            and {b=0, l=0, r=0, h=1}
+            or  {t=0, l=0, r=0, h=1}
+    self.subviews.button.frame = frame
+
+    return true
+end
+
+function RecheckOverlay:init()
+    self:addviews{
+        widgets.TextButton{
+            view_id = 'button',
+            -- frame={t=0, l=0, r=0, h=1}, -- is set in `updateTextButtonFrame()`
+            label='request re-check',
+            key='CUSTOM_CTRL_A',
+            on_activate=set_current_inactive,
+            enabled=is_current_active,
+        },
+    }
+
+    self:updateTextButtonFrame()
+end
+
+function RecheckOverlay:onRenderBody(dc)
+    if (self.frame_rect.y1 == 7) then
+        -- only apply this logic if the overlay is on the same row as
+        -- originally thought: just above the order status icon
+
+        if self:updateTextButtonFrame() then
+            self:updateLayout()
+        end
+    end
+
+    RecheckOverlay.super.onRenderBody(self, dc)
+end
+
+-- -------------------
+
+OVERLAY_WIDGETS = {
+    recheck=RecheckOverlay,
+}
+
+if dfhack_flags.module then
+    return
+end
+
+-- Check if on the correct screen and perform the action if so
+if not dfhack.gui.matchFocusString(focusString) then
+    qerror('workorder-recheck must be run from the manager order conditions view')
+end
+
+set_current_inactive()