UI fixes

lib/wallet/wallet.ts

@@ -521,6 +521,28 @@ export class Wallet {
   }
 
 
+  /**
+   * Add a contract to the wallet and sign coins,
+   * but do not send them yet.
+   */
+  checkPay(offer: Offer): Promise<any> {
+    console.log("executing checkPay");
+    return Promise.resolve().then(() => {
+      return this.getPossibleExchangeCoins(offer.contract.amount,
+                                           offer.contract.max_fee,
+                                           offer.contract.exchanges)
+    }).then((mcs) => {
+      if (Object.keys(mcs).length == 0) {
+        console.log("not confirming payment, insufficient coins");
+        return {
+          error: "coins-insufficient",
+        };
+      }
+      return {};
+    });
+  }
+
+
   /**
    * Retrieve all necessary information for looking up the contract
    * with the given hash.

lib/wallet/wxMessaging.ts

@@ -99,6 +99,24 @@ function makeHandlers(db: IDBDatabase,
 
       return wallet.confirmPay(offer);
     },
+    ["check-pay"]: function(detail, sender) {
+      let offer;
+      try {
+        offer = Offer.checked(detail.offer);
+      } catch (e) {
+        if (e instanceof Checkable.SchemaError) {
+          console.error("schema error:", e.message);
+          return Promise.resolve({
+                                   error: "invalid contract",
+                                   hint: e.message,
+                                   detail: detail
+                                 });
+        } else {
+          throw e;
+        }
+      }
+      return wallet.checkPay(offer);
+    },
     ["execute-payment"]: function(detail, sender) {
       return wallet.executePayment(detail.H_contract);
     },

pages/confirm-contract.html

@@ -47,6 +47,26 @@
     input.url {
       width: 25em;
     }
+
+
+    button.accept:disabled {
+      background-color: #dedbe8;
+      border: 1px solid white;
+      border-radius: 5px;
+      margin: 1em 0;
+      padding: 0.5em;
+      font-weight: bold;
+      color: #2C2C2C;
+    }
+
+    .errorbox {
+      border: 1px solid;
+      display: inline-block;
+      margin: 1em;
+      padding: 1em;
+      font-weight: bold;
+      background: #FF8A8A;
+    }
   </style>
 </head>
 

pages/confirm-contract.tsx

@@ -72,6 +72,7 @@ export function main() {
   console.dir(offer);
   let contract = offer.contract;
   let error = null;
+  let payDisabled = true;
 
   var Contract = {
     view(ctrl) {
@@ -87,8 +88,8 @@ export function main() {
           _.map(contract.products,
                 (p: any) => m("li",
                               `${p.description}: ${prettyAmount(p.price)}`))),
-        m("button.accept", {onclick: doPayment}, i18n`Confirm Payment`),
-        m("p", error ? error : []),
+        m("button.accept", {onclick: doPayment, disabled: payDisabled}, i18n`Confirm Payment`),
+        (error ? m("p.errorbox", error) : []),
         m(Details, contract)
       ];
     }
@@ -96,6 +97,31 @@ export function main() {
 
   m.mount(document.getElementById("contract"), Contract);
 
+  function checkPayment() {
+    chrome.runtime.sendMessage({type: 'check-pay', detail: {offer}}, (resp) => {
+      if (resp.error) {
+        console.log("check-pay error", JSON.stringify(resp));
+        switch (resp.error) {
+          case "coins-insufficient":
+            error = "You do not have enough coins of the requested currency.";
+            break;
+          default:
+            error = `Error: ${resp.error}`;
+            break;
+        }
+        payDisabled = true;
+      } else {
+        payDisabled = false;
+        error = null;
+      }
+      m.redraw();
+      window.setTimeout(checkPayment, 300);
+    });
+  }
+
+  checkPayment();
+
+
   function doPayment() {
     let d = {offer};
     chrome.runtime.sendMessage({type: 'confirm-pay', detail: d}, (resp) => {

pages/confirm-create-reserve.html

@@ -45,6 +45,17 @@
       width: 25em;
     }
 
+    table {
+      border-collapse: collapse;
+    }
+
+    td {
+      border-left: 1px solid black;
+      border-right: 1px solid black;
+      text-align: center;
+      padding: 0.3em;
+    }
+
   </style>
 </head>
 

pages/confirm-create-reserve.tsx

@@ -250,9 +250,21 @@ function view(ctrl: Controller) {
 function renderReserveCreationDetails(rci: ReserveCreationInfo) {
   let denoms = rci.selectedDenoms;
 
+  let countByPub = {};
+  let uniq = [];
+
+  denoms.forEach((x: Denomination) => {
+    let c = countByPub[x.denom_pub] || 0;
+    if (c == 0) {
+      uniq.push(x);
+    }
+    c += 1;
+    countByPub[x.denom_pub] = c;
+  });
+
   function row(denom: Denomination) {
     return m("tr", [
-      m("td", denom.pub_hash.substr(0, 5) + "..."),
+      m("td", countByPub[denom.denom_pub] + "x"),
       m("td", amountToPretty(denom.value)),
       m("td", amountToPretty(denom.fee_withdraw)),
       m("td", amountToPretty(denom.fee_refresh)),
@@ -267,13 +279,13 @@ function renderReserveCreationDetails(rci: ReserveCreationInfo) {
     m("p", `Overhead: ${overheadStr}`),
     m("table", [
       m("tr", [
-        m("th", "Key Hash"),
+        m("th", "Count"),
         m("th", "Value"),
         m("th", "Withdraw Fee"),
         m("th", "Refresh Fee"),
         m("th", "Deposit Fee"),
       ]),
-      denoms.map(row)
+      uniq.map(row)
     ])
   ];
 }