Add mouse-warping support.
.

Reference: /n/atom/patch/applied/9wd-mousewarp
Date: Fri May 23 21:43:17 CES 2014
Signed-off-by: root@davidrhoskin.com

--- /usr/web/9wd/js/util/array.js	Fri May 23 21:42:29 2014
+++ /usr/web/9wd/js/util/array.js	Fri May 23 21:42:31 2014
@@ -82,3 +82,22 @@
 		max: this.getPoint()
 	}
 }
+
+ArrayIterator.prototype.strtoul = function(){
+	var spc = " ".charCodeAt(0);
+	var oh = "0".charCodeAt(0);
+	var nine = "9".charCodeAt(0);
+	var x = 0;
+
+	for(; this.index < this.array.length; ++this.index){
+		if(this.array[this.index] != spc)
+			break;
+	}
+	for(; this.index < this.array.length; ++this.index){
+		if(this.array[this.index] >= oh && this.array[this.index] <= nine)
+			x = (x * 10) + (this.array[this.index] - oh);
+		else
+			break;
+	}
+	return x;
+}
--- /usr/web/9wd/js/draw/draw9p.js	Fri May 23 21:42:34 2014
+++ /usr/web/9wd/js/draw/draw9p.js	Fri May 23 21:42:36 2014
@@ -251,6 +251,8 @@
 		}else{
 			if(qid.path == QCONSCTL){
 				return;
+			}else if(qid.path == QMOUSE){
+				return mouse.handlewarp(data);
 			}else if(qid.path == QCURSOR){
 				return mouse.cursor.write(data);
 			}else if(qid.path == QLABEL){
--- /usr/web/9wd/js/mouse.js	Fri May 23 21:42:39 2014
+++ /usr/web/9wd/js/mouse.js	Fri May 23 21:42:40 2014
@@ -17,6 +17,20 @@
 		buf = buf.concat(pad11(this.timestamp));
 		return buf;
 	}
+	State.prototype.bound = function(){
+		if(this.position.x > Draw9p.rootcanvas.width){
+			this.position.x = Draw9p.rootcanvas.width;
+		}
+		if(this.position.x < 0){
+			this.position.x = 0;
+		}
+		if(this.position.y > Draw9p.rootcanvas.height){
+			this.position.y = Draw9p.rootcanvas.height;
+		}
+		if(this.position.y < 0){
+			this.position.y = 0;
+		}
+	}
 
 	this.states = {down: 1, up: 0};
 	this.state = new State({x: 0, y: 0}, 0);
@@ -50,6 +64,9 @@
 		this.state.buttons = (this.state.buttons& ~(1<<e.button)) |
 			state<<e.button;
 		this.generatemovement(this.state);
+
+		e.preventDefault();
+		e.stopPropagation();
 		return false;
 	}
 
@@ -59,32 +76,39 @@
 			e.mozMovementX ||
 			e.webkitMovementX ||
 			0;
-		if(this.state.position.x > Draw9p.rootcanvas.width){
-			this.state.position.x = Draw9p.rootcanvas.width;
-		}
-		if(this.state.position.x < 0){
-			this.state.position.x = 0;
-		}
+
 		this.state.position.y +=
 			e.movementY ||
 			e.mozMovementY ||
 			e.webkitMovementY ||
 			0;
-		if(this.state.position.y > Draw9p.rootcanvas.height){
-			this.state.position.y = Draw9p.rootcanvas.height;
-		}
-		if(this.state.position.y < 0){
-			this.state.position.y = 0;
-		}
 
-		this.cursor.goto(this.state.position);
+		this.state.bound();
 		this.generatemovement(this.state);
 		return false;
 }
 
+	this.handlewarp = function(data){
+		var ai = new ArrayIterator(data);
+
+		if(ai.getChar() != "m".charCodeAt(0)){
+			throw("bad mouse write");
+		}
+		var x = ai.strtoul();
+		var y = ai.strtoul();
+
+		this.state.position.x = x;
+		this.state.position.y = y;
+		this.state.bound();
+
+		this.generatemovement(this.state);
+		return data.length;
+	}
+
 	this.generatemovement = function(state){
-		cons.write("m " + state.position.x + ", " + state.position.y +
-			" : " + state.buttons);
+		//cons.write("m " + state.position.x + ", " + state.position.y +
+		//	" : " + state.buttons);
+		this.cursor.goto(this.state.position);
 		this.buf.push(this.state.copy());
 		this.flushcallbacks();
 	}