From 05719eb4ae2aeb30ad5d643203c4ea5fa611c37d Mon Sep 17 00:00:00 2001
From: Willian Mitsuda <wmitsuda@gmail.com>
Date: Wed, 14 Jul 2021 03:52:31 -0300
Subject: [PATCH] Add selection support for addresses

---
 src/AddressTransactions.tsx    |  7 +++--
 src/BlockTransactions.tsx      |  7 +++--
 src/search/TransactionItem.tsx | 57 +++++++++++++++++++++++++++-------
 src/useSelection.ts            | 23 ++++++++++++++
 4 files changed, 78 insertions(+), 16 deletions(-)
 create mode 100644 src/useSelection.ts

diff --git a/src/AddressTransactions.tsx b/src/AddressTransactions.tsx
index e671087..076d9be 100644
--- a/src/AddressTransactions.tsx
+++ b/src/AddressTransactions.tsx
@@ -15,6 +15,7 @@ import { SearchController } from "./search/search";
 import { RuntimeContext } from "./useRuntime";
 import { useENSCache } from "./useReverseCache";
 import { useFeeToggler } from "./search/useFeeToggler";
+import { SelectionContext, useSelection } from "./useSelection";
 
 type BlockParams = {
   addressOrName: string;
@@ -153,6 +154,8 @@ const AddressTransactions: React.FC = () => {
 
   const [feeDisplay, feeDisplayToggler] = useFeeToggler();
 
+  const selection = useSelection();
+
   return (
     <StandardFrame>
       {error ? (
@@ -204,7 +207,7 @@ const AddressTransactions: React.FC = () => {
                 feeDisplayToggler={feeDisplayToggler}
               />
               {controller ? (
-                <>
+                <SelectionContext.Provider value={selection}>
                   {controller.getPage().map((tx) => (
                     <TransactionItem
                       key={tx.hash}
@@ -228,7 +231,7 @@ const AddressTransactions: React.FC = () => {
                       nextHash={page ? page[page.length - 1].hash : ""}
                     />
                   </div>
-                </>
+                </SelectionContext.Provider>
               ) : (
                 <PendingResults />
               )}
diff --git a/src/BlockTransactions.tsx b/src/BlockTransactions.tsx
index 8f8f474..e8cbc52 100644
--- a/src/BlockTransactions.tsx
+++ b/src/BlockTransactions.tsx
@@ -15,6 +15,7 @@ import { PAGE_SIZE } from "./params";
 import { useFeeToggler } from "./search/useFeeToggler";
 import { RuntimeContext } from "./useRuntime";
 import { useENSCache } from "./useReverseCache";
+import { SelectionContext, useSelection } from "./useSelection";
 
 type BlockParams = {
   blockNumber: string;
@@ -116,6 +117,8 @@ const BlockTransactions: React.FC = () => {
 
   const [feeDisplay, feeDisplayToggler] = useFeeToggler();
 
+  const selection = useSelection();
+
   return (
     <StandardFrame>
       <StandardSubtitle>Transactions</StandardSubtitle>
@@ -142,7 +145,7 @@ const BlockTransactions: React.FC = () => {
           feeDisplayToggler={feeDisplayToggler}
         />
         {page ? (
-          <>
+          <SelectionContext.Provider value={selection}>
             {page.map((tx) => (
               <TransactionItem
                 key={tx.hash}
@@ -161,7 +164,7 @@ const BlockTransactions: React.FC = () => {
                 total={total}
               />
             </div>
-          </>
+          </SelectionContext.Provider>
         ) : (
           <PendingResults />
         )}
diff --git a/src/search/TransactionItem.tsx b/src/search/TransactionItem.tsx
index 7cfaf76..516554f 100644
--- a/src/search/TransactionItem.tsx
+++ b/src/search/TransactionItem.tsx
@@ -14,6 +14,7 @@ import TransactionValue from "../components/TransactionValue";
 import { ENSReverseCache, ProcessedTransaction } from "../types";
 import { FeeDisplay } from "./useFeeToggler";
 import { formatValue } from "../components/formatter";
+import { useSelectionContext } from "../useSelection";
 
 type TransactionItemProps = {
   tx: ProcessedTransaction;
@@ -45,6 +46,14 @@ const TransactionItem: React.FC<TransactionItemProps> = ({
   const ensTo = ensCache && tx.to && ensCache[tx.to];
   const flash = tx.gasPrice.isZero() && tx.internalMinerInteraction;
 
+  const [selection, setSelection] = useSelectionContext();
+  const select = (address: string) => {
+    setSelection({ type: "address", content: address });
+  };
+  const deselect = () => {
+    setSelection(null);
+  };
+
   return (
     <div
       className={`grid grid-cols-12 gap-x-1 items-baseline text-sm border-t border-gray-200 ${
@@ -69,12 +78,24 @@ const TransactionItem: React.FC<TransactionItemProps> = ({
       <span className="col-span-2 flex justify-between items-baseline space-x-2 pr-2">
         <span className="truncate" title={tx.from}>
           {tx.from && (
-            <AddressOrENSName
-              address={tx.from}
-              ensName={ensFrom}
-              selectedAddress={selectedAddress}
-              minerAddress={tx.miner}
-            />
+            <div
+              className={`border border-dashed rounded hover:bg-transparent hover:border-transparent px-1 ${
+                selection !== null &&
+                selection.type === "address" &&
+                selection.content === tx.from
+                  ? "border-orange-400 bg-yellow-100"
+                  : "border-transparent"
+              }`}
+              onMouseEnter={() => select(tx.from!)}
+              onMouseLeave={deselect}
+            >
+              <AddressOrENSName
+                address={tx.from}
+                ensName={ensFrom}
+                selectedAddress={selectedAddress}
+                minerAddress={tx.miner}
+              />
+            </div>
           )}
         </span>
         <span>
@@ -86,12 +107,24 @@ const TransactionItem: React.FC<TransactionItemProps> = ({
       </span>
       <span className="col-span-2 truncate" title={tx.to}>
         {tx.to && (
-          <AddressOrENSName
-            address={tx.to}
-            ensName={ensTo}
-            selectedAddress={selectedAddress}
-            minerAddress={tx.miner}
-          />
+          <div
+            className={`border border-dashed rounded hover:bg-transparent hover:border-transparent px-1 ${
+              selection !== null &&
+              selection.type === "address" &&
+              selection.content === tx.to
+                ? "border-orange-400 bg-yellow-100"
+                : "border-transparent"
+            }`}
+            onMouseEnter={() => select(tx.to!)}
+            onMouseLeave={deselect}
+          >
+            <AddressOrENSName
+              address={tx.to}
+              ensName={ensTo}
+              selectedAddress={selectedAddress}
+              minerAddress={tx.miner}
+            />
+          </div>
         )}
       </span>
       <span className="col-span-2 truncate">
diff --git a/src/useSelection.ts b/src/useSelection.ts
new file mode 100644
index 0000000..ed66746
--- /dev/null
+++ b/src/useSelection.ts
@@ -0,0 +1,23 @@
+import React, { useState, useContext } from "react";
+
+export type Selection = {
+  type: string;
+  content: string;
+};
+
+export const useSelection = (): [
+  Selection | null,
+  React.Dispatch<React.SetStateAction<Selection | null>>
+] => {
+  const [selection, setSelection] = useState<Selection | null>(null);
+  return [selection, setSelection];
+};
+
+export const SelectionContext = React.createContext<
+  ReturnType<typeof useSelection>
+>(null!);
+
+export const useSelectionContext = () => {
+  const ctx = useContext(SelectionContext);
+  return ctx;
+};