Use document.hidden instead of document.hasFocus()

[xogo.git] / base_rules.js

diff --git a/base_rules.js b/base_rules.js
index eb01442..acee324 100644 (file)
--- a/base_rules.js
+++ b/base_rules.js
@@ -482,7 +482,7 @@ export default class ChessRules {
       for (let y=0; y<this.size.y; y++) {
         if (this.enlightened[x][y] && !newEnlightened[x][y]) {
           let elt = document.getElementById(this.coordsToId([x, y]));
-          elt.style.fillOpacity = "0.5";
+          elt.classList.add("in-shadow");
           if (this.g_pieces[x][y]) {
             this.g_pieces[x][y].remove();
             this.g_pieces[x][y] = null;
@@ -490,7 +490,7 @@ export default class ChessRules {
         }
         else if (!this.enlightened[x][y] && newEnlightened[x][y]) {
           let elt = document.getElementById(this.coordsToId([x, y]));
-          elt.style.fillOpacity = "1";
+          elt.classList.remove("in-shadow");
           if (this.board[x][y] != "") {
             const piece = this.getPiece(x, y);
             const color = this.getColor(x, y);
@@ -627,13 +627,12 @@ export default class ChessRules {
       for (let j=0; j < sizeY; j++) {
         const ii = (flipped ? this.size.x - 1 - i : i);
         const jj = (flipped ? this.size.y - 1 - j : j);
-        let fillOpacity = '1';
-        if (this.options["dark"] && !this.enlightened[ii][jj])
-          fillOpacity = '0.5';
+        let classes = this.getSquareColorClass(ii, jj);
+        if (this.enlightened && !this.enlightened[ii][jj])
+          classes += " in-shadow";
         // NOTE: x / y reversed because coordinates system is reversed.
-        // TODO: CSS "wood" style, rect --> style --> background-image ?
-        board += `<rect style="fill-opacity:${fillOpacity};
-                               fill:#${this.getSquareColor(ii, jj)}"
+        board += `<rect
+          class="${classes}"
           id="${this.coordsToId([ii, jj])}"
           width="10"
           height="10"
@@ -646,8 +645,8 @@ export default class ChessRules {
   }
 
   // Generally light square bottom-right; TODO: user-defined colors at least
-  getSquareColor(i, j) {
-    return ((i+j) % 2 == 0 ? "f0d9b5": "b58863");
+  getSquareColorClass(i, j) {
+    return ((i+j) % 2 == 0 ? "light-square": "dark-square");
   }
 
   setupPieces(r) {
@@ -1172,7 +1171,7 @@ export default class ChessRules {
   }
 
   // All possible moves from selected square
-  getPotentialMovesFrom(sq) {
+  getPotentialMovesFrom(sq, color) {
     if (typeof sq[0] == "string") return this.getDropMovesFrom(sq);
     if (this.options["madrasi"] && this.isImmobilized(sq)) return [];
     const piece = this.getPiece(sq[0], sq[1]);
@@ -2091,9 +2090,9 @@ export default class ChessRules {
       else launchAnimation(); //focused user!
     };
     let boardContainer = document.getElementById("boardContainer");
-    if (!document.hasFocus()) {
-      window.onfocus = () => {
-        window.onfocus = undefined;
+    if (document.hidden) {
+      document.onvisibilitychange = () => {
+        document.onvisibilitychange = undefined;
         checkDisplayThenAnimate();
       };
     }