Loading shared cloud projects in presentation mode

and exporting URLs for shared projects

cloud.js

@@ -29,7 +29,7 @@
 
 /*global modules, IDE_Morph, SnapSerializer, hex_sha512, alert, nop*/
 
-modules.cloud = '2013-April-02';
+modules.cloud = '2013-April-04';
 
 // Global stuff
 
@@ -37,6 +37,8 @@ var Cloud;
 
 var SnapCloud = new Cloud(
     'https://snapcloud.miosoft.com/miocon/app/login?_app=SnapCloud'
+    // '192.168.2.108:8087/miocon/app/login?_app=SnapCloud'
+    // 'localhost/miocon/app/login?_app=SnapCloud'
 );
 
 // Cloud /////////////////////////////////////////////////////////////
@@ -118,6 +120,60 @@ Cloud.prototype.signup = function (
     }
 };
 
+Cloud.prototype.getPublicProject = function (
+    id,
+    callBack,
+    errorCall
+) {
+    // id is Username=username&projectName=projectname,
+    // where the values are url-component encoded
+    // callBack is a single argument function, errorCall take two args
+    var request = new XMLHttpRequest(),
+        myself = this;
+    try {
+        request.open(
+            "GET",
+            (this.hasProtocol() ? '' : 'http://')
+                + this.url + 'Public'
+                + '&'
+                + id,
+            true
+        );
+        request.setRequestHeader(
+            "Content-Type",
+            "application/x-www-form-urlencoded"
+        );
+        request.withCredentials = true;
+        request.onreadystatechange = function () {
+            if (request.readyState === 4) {
+                if (request.responseText) {
+                    if (request.responseText.indexOf('ERROR') === 0) {
+                        errorCall.call(
+                            this,
+                            request.responseText
+                        );
+                    } else {
+                        callBack.call(
+                            null,
+                            request.responseText,
+                            'Published Project'
+                        );
+                    }
+                } else {
+                    errorCall.call(
+                        null,
+                        myself.url + 'Public',
+                        'could not connect to:'
+                    );
+                }
+            }
+        };
+        request.send(null);
+    } catch (err) {
+        errorCall.call(this, err.toString(), 'Snap!Cloud');
+    }
+};
+
 Cloud.prototype.connect = function (
     callBack,
     errorCall

gui.js

@@ -68,7 +68,7 @@ sb, CommentMorph, CommandBlockMorph*/
 
 // Global stuff ////////////////////////////////////////////////////////
 
-modules.gui = '2013-April-02';
+modules.gui = '2013-April-04';
 
 // Declarations
 
@@ -150,7 +150,7 @@ IDE_Morph.prototype.init = function (isAutoFill) {
 };
 
 IDE_Morph.prototype.openIn = function (world) {
-    var hash, usr, motd;
+    var hash, usr, motd, myself = this;
 
     this.buildPanes();
     world.add(this);
@@ -245,6 +245,15 @@ IDE_Morph.prototype.openIn = function (world) {
         }
         this.toggleAppMode(true);
         this.runScripts();
+    } else if (location.hash.substr(0, 9) === '#present:') {
+        SnapCloud.getPublicProject(
+            location.hash.substr(9),
+            function (projectData) {
+                myself.rawOpenProjectString(projectData);
+                myself.toggleAppMode(true);
+            },
+            this.cloudError()
+        );
     } else if (location.hash.substr(0, 6) === '#lang:') {
         this.setLanguage(location.hash.substr(6));
         this.newProject();
@@ -3831,7 +3840,8 @@ ProjectDialogMorph.prototype.openSelectedCloudProject = function () {
 };
 
 ProjectDialogMorph.prototype.rawOpenSelectedCloudProject = function () {
-    var myself = this;
+    var myself = this,
+        proj = this.listField.selected;
     SnapCloud.reconnect(
         function () {
             SnapCloud.callService(
@@ -3840,9 +3850,15 @@ ProjectDialogMorph.prototype.rawOpenSelectedCloudProject = function () {
                     SnapCloud.disconnect();
                     myself.ide.source = 'cloud';
                     myself.ide.droppedText(response[0].SourceCode);
+                    if (proj.Public === 'true') {
+                        location.hash = '#present:Username=' +
+                            encodeURIComponent(SnapCloud.username) +
+                            '&ProjectName=' +
+                            encodeURIComponent(proj.ProjectName);
+                    }
                 },
                 myself.ide.cloudError(),
-                [myself.listField.selected.ProjectName]
+                [proj.ProjectName]
             );
         },
         myself.ide.cloudError()

history.txt

@@ -1579,3 +1579,7 @@ ______
 ------
 * YPR converter fix: No more text area in upper left corner of the Snap! IDE
 * Blocks, BYOB, Store: PrototypeHatBlocks in the BlockEditor accept anchored comments
+
+130404
+------
+* loading shared projects in presentation mode, exporting URL for shared projects