Добавлен отлов ошибок при инициализации, добавлена генерация ошибки measureText

client/components/Reader/TextPage/TextPage.vue

@@ -211,7 +211,9 @@ class TextPage extends Vue {
             this.parsed.wordWrap = this.wordWrap;
             this.parsed.cutEmptyParagraphs = this.cutEmptyParagraphs;
             this.parsed.addEmptyParagraphs = this.addEmptyParagraphs;
-            let t = '';
+            let t = 'Щ';
+            if (this.drawHelper.measureText(t, {}) == 0)
+                throw new Error('Ошибка measureText');
             while (this.drawHelper.measureText(t, {}) < this.w) t += 'Щ';
             this.parsed.maxWordLength = t.length - 1;
             this.parsed.measureText = this.drawHelper.measureText.bind(this.drawHelper);
@@ -368,6 +370,7 @@ class TextPage extends Vue {
 
         if (this.lastBook) {
             (async() => {
+                try {
                     //подождем ленивый парсинг
                     this.stopLazyParse = true;
                     while (this.doingLazyParse) await sleep(10);
@@ -404,11 +407,14 @@ class TextPage extends Vue {
                     this.statusBar = null;
                     await this.stopTextScrolling();
 
-                this.calcPropsAndLoadFonts();
+                    await this.calcPropsAndLoadFonts();
 
                     this.refreshTime();
                     if (this.lazyParseEnabled)
                         this.lazyParsePara();
+                } catch (e) {
+                    this.$alert(e.message, 'Ошибка', {type: 'error'});
+                }
             })();
         }
     }