增加提示框

src/fonteditor/widget/actions.js

@@ -38,8 +38,10 @@ define(
             },
 
             // 导出
-            'export': function() {
-
+            'export': function(e) {
+                if (!e.target.getAttribute('download')) {
+                    e.preventDefault();
+                }
             },
 
             // 导出文件
@@ -49,6 +51,7 @@ define(
                     program.exporter['export'](program.ttfManager.get(), {
                         type: target.attr('data-type'),
                         target: target,
+                        originEvent: e,
                         error: function() {
                             e.preventDefault();
                         }

src/fonteditor/widget/exporter.js

@@ -54,6 +54,7 @@ define(
                     options.success && options.success(base64Str);  
                 }
                 catch(e) {
+                    $(options.target).removeAttr('download');
                     alert(e.message);
                     options.error && options.error(e);  
                 }

src/fonteditor/widget/previewer.js

@@ -56,7 +56,6 @@ define(
                 fontData = ttf2base64(buffer);
             }
 
-
             // 过滤不显示的字形
             var filtered = ttf.glyf.filter(function(g) {
                 return g.name != '.notdef' && g.name != '.null' && g.name != 'nonmarkingreturn' 
@@ -99,14 +98,19 @@ define(
              * @param {string} fontFormat 字体类型
              */
             load: function(ttf, fontFormat) {
-                var html = generatePreviewHTML(ttf, fontFormat);
-                var win = window.open('./empty.html');
-                win.onload = function() {
-                    win.document.body.innerHTML = html;
-                    win.focus();
-                    win = null;
-                    html = null;
-                };
+                try {
+                    var html = generatePreviewHTML(ttf, fontFormat);
+                    var win = window.open('./empty.html');
+                    win.onload = function() {
+                        win.document.body.innerHTML = html;
+                        win.focus();
+                        win = null;
+                        html = null;
+                    };                    
+                }
+                catch (exp) {
+                    alert(exp.message);
+                }
             }
         };
 

src/ttf/ttfwriter.js

@@ -14,9 +14,9 @@ define(
         var Directory = require('./table/directory');
         var supportTables = require('./table/support');
         var checkSum = require('./util/checkSum');
+        var error = require('./error');
 
         var reduceGlyf = require('./util/reduceGlyf');
-
         var pathCeil = require('graphics/pathCeil');
 
         // 支持写的表, 注意表顺序