web client: listen for double-click events on ground in game window...

Related issues:
- #298
- #254

srcjs/stendhal/entity/ground.js

@@ -61,14 +61,19 @@ stendhal.zone.ground = {
 		return "url(/data/sprites/cursor/walk.png) 1 3, auto";
 	},
 
-	onclick: function(x, y) {
+	onclick: function(x, y, dblclick) {
 		var gameX = x + stendhal.ui.gamewindow.offsetX;
 		var gameY = y + stendhal.ui.gamewindow.offsetY;
 		var action = {
 			"type": "moveto",
 			"x": "" + Math.floor(gameX / 32),
 			"y": "" + Math.floor(gameY / 32)
 		};
+
+		if (typeof dblclick == "boolean" && dblclick) {
+			action["double_click"] = "";
+		}
+
 		var extend = this.calculateZoneChangeDirection(gameX, gameY);
 		if (extend) {
 			action.extend = extend;

srcjs/stendhal/main.js

@@ -131,6 +131,7 @@ stendhal.main = {
 		var gamewindow = document.getElementById("gamewindow");
 		gamewindow.setAttribute("draggable", true);
 		gamewindow.addEventListener("mousedown", stendhal.ui.gamewindow.onMouseDown);
+		gamewindow.addEventListener("dblclick", stendhal.ui.gamewindow.onMouseDown);
 		gamewindow.addEventListener("mousemove", stendhal.ui.gamewindow.onMouseMove);
 		gamewindow.addEventListener("dragstart", stendhal.ui.gamewindow.onDragStart);
 		gamewindow.addEventListener("dragover", stendhal.ui.gamewindow.onDragOver);

srcjs/stendhal/ui/gamewindow.js

@@ -215,15 +215,20 @@ stendhal.ui.gamewindow = {
 				stendhal.ui.globalpopup.close();
 			}
 
-			e.target.addEventListener("mousemove", onDrag);
-			e.target.addEventListener("mouseup", onMouseUp);
 			startX = e.offsetX;
 			startY = e.offsetY;
 
 			var x = e.offsetX + stendhal.ui.gamewindow.offsetX;
 			var y = e.offsetY + stendhal.ui.gamewindow.offsetY;
 			entity = stendhal.zone.entityAt(x, y);
 			timestampMouseDown = +new Date();
+
+			if (e.type !== "dblclick") {
+				e.target.addEventListener("mousemove", onDrag);
+				e.target.addEventListener("mouseup", onMouseUp);
+			} else if (entity == stendhal.zone.ground) {
+				entity.onclick(e.offsetX, e.offsetY, true);
+			}
 		}
 
 		function isRightClick(e) {