HTML: move 'New game' back out of the drop-down menu.

[sgt-puzzles.git] / emccpre.js

diff --git a/emccpre.js b/emccpre.js
index b10bf29828bc8153a40efc212059ccdf2683b775..50825556171e5442827ea93865d2ba22334a40d9 100644 (file)
--- a/emccpre.js
+++ b/emccpre.js
@@ -82,8 +82,9 @@ var dlg_return_sval, dlg_return_ival;
 // The <ul> object implementing the game-type drop-down, and a list of
 // the <li> objects inside it. Used by js_add_preset(),
 // js_get_selected_preset() and js_select_preset().
-var gametypelist = null, gametypeitems = [], gametypecustom = null;
+var gametypelist = null, gametypeitems = [];
 var gametypeselectedindex = null;
+var gametypesubmenus = [];
 
 // The two anchors used to give permalinks to the current puzzle. Used
 // by js_update_permalinks().
@@ -128,6 +129,72 @@ function disable_menu_item(item, disabledFlag) {
         item.className = "";
 }
 
+// Dialog-box functions called from both C and JS.
+function dialog_init(titletext) {
+    // Create an overlay on the page which darkens everything
+    // beneath it.
+    dlg_dimmer = document.createElement("div");
+    dlg_dimmer.style.width = "100%";
+    dlg_dimmer.style.height = "100%";
+    dlg_dimmer.style.background = '#000000';
+    dlg_dimmer.style.position = 'fixed';
+    dlg_dimmer.style.opacity = 0.3;
+    dlg_dimmer.style.top = dlg_dimmer.style.left = 0;
+    dlg_dimmer.style["z-index"] = 99;
+
+    // Now create a form which sits on top of that in turn.
+    dlg_form = document.createElement("form");
+    dlg_form.style.width = (window.innerWidth * 2 / 3) + "px";
+    dlg_form.style.opacity = 1;
+    dlg_form.style.background = '#ffffff';
+    dlg_form.style.color = '#000000';
+    dlg_form.style.position = 'absolute';
+    dlg_form.style.border = "2px solid black";
+    dlg_form.style.padding = "20px";
+    dlg_form.style.top = (window.innerHeight / 10) + "px";
+    dlg_form.style.left = (window.innerWidth / 6) + "px";
+    dlg_form.style["z-index"] = 100;
+
+    var title = document.createElement("p");
+    title.style.marginTop = "0px";
+    title.appendChild(document.createTextNode(titletext));
+    dlg_form.appendChild(title);
+
+    dlg_return_funcs = [];
+    dlg_next_id = 0;
+}
+
+function dialog_launch(ok_function, cancel_function) {
+    // Put in the OK and Cancel buttons at the bottom.
+    var button;
+
+    if (ok_function) {
+        button = document.createElement("input");
+        button.type = "button";
+        button.value = "OK";
+        button.onclick = ok_function;
+        dlg_form.appendChild(button);
+    }
+
+    if (cancel_function) {
+        button = document.createElement("input");
+        button.type = "button";
+        button.value = "Cancel";
+        button.onclick = cancel_function;
+        dlg_form.appendChild(button);
+    }
+
+    document.body.appendChild(dlg_dimmer);
+    document.body.appendChild(dlg_form);
+}
+
+function dialog_cleanup() {
+    document.body.removeChild(dlg_dimmer);
+    document.body.removeChild(dlg_form);
+    dlg_dimmer = dlg_form = null;
+    onscreen_canvas.focus();
+}
+
 // Init function called from body.onload.
 function initPuzzle() {
     // Construct the off-screen canvas used for double buffering.
@@ -229,7 +296,60 @@ function initPuzzle() {
             command(9);
     };
 
+    // 'number' is used for C pointers
+    get_save_file = Module.cwrap('get_save_file', 'number', []);
+    free_save_file = Module.cwrap('free_save_file', 'void', ['number']);
+    load_game = Module.cwrap('load_game', 'void', ['string', 'number']);
+
+    document.getElementById("save").onclick = function(event) {
+        if (dlg_dimmer === null) {
+            var savefile_ptr = get_save_file();
+            var savefile_text = Pointer_stringify(savefile_ptr);
+            free_save_file(savefile_ptr);
+            dialog_init("Download saved-game file");
+            dlg_form.appendChild(document.createTextNode(
+                "Click to download the "));
+            var a = document.createElement("a");
+            a.download = "puzzle.sav";
+            a.href = "data:application/octet-stream," +
+                encodeURIComponent(savefile_text);
+            a.appendChild(document.createTextNode("saved-game file"));
+            dlg_form.appendChild(a);
+            dlg_form.appendChild(document.createTextNode("."));
+            dlg_form.appendChild(document.createElement("br"));
+            dialog_launch(function(event) {
+                dialog_cleanup();
+            });
+        }
+    };
+
+    document.getElementById("load").onclick = function(event) {
+        if (dlg_dimmer === null) {
+            dialog_init("Upload saved-game file");
+            var input = document.createElement("input");
+            input.type = "file";
+            input.multiple = false;
+            dlg_form.appendChild(input);
+            dlg_form.appendChild(document.createElement("br"));
+            dialog_launch(function(event) {
+                if (input.files.length == 1) {
+                    var file = input.files.item(0);
+                    var reader = new FileReader();
+                    reader.addEventListener("loadend", function() {
+                        var string = reader.result;
+                        load_game(string, string.length);
+                    });
+                    reader.readAsBinaryString(file);
+                }
+                dialog_cleanup();
+            }, function(event) {
+                dialog_cleanup();
+            });
+        }
+    };
+
     gametypelist = document.getElementById("gametype");
+    gametypesubmenus.push(gametypelist);
 
     // In IE, the canvas doesn't automatically gain focus on a mouse
     // click, so make sure it does