Load Blockly XML parse error causes IDE UI glitches #305
Description
Example of a file that fails to parse (not sure why - old Blocks?)
<xml xmlns="https://developers.google.com/blockly/xml">
<variables>
<variable type="">n</variable>
<variable type="">reading</variable>
<variable type="">Vbatt</variable>
<variable type="">txtVbatt</variable>
</variables>
<block type="espruino_pinMode" x="-221" y="-137">
<field name="MODE">input</field>
<value name="PIN">
<block type="espruino_pin">
<field name="PIN">D30</field>
</block>
</value>
<next>
<block type="variables_set" inline="false">
<field name="VAR" variabletype="">n</field>
<value name="VALUE">
<block type="math_number">
<field name="NUM">100</field>
</block>
</value>
<next>
<block type="controls_repeat_ext">
<value name="TIMES">
<block type="math_number">
<field name="NUM">10</field>
</block>
</value>
<statement name="DO">
<block type="variables_set" inline="false">
<field name="VAR" variabletype="">reading</field>
<value name="VALUE">
<block type="math_number">
<field name="NUM">0</field>
</block>
</value>
<next>
<block type="controls_repeat_ext">
<value name="TIMES">
<block type="variables_get">
<field name="VAR" variabletype="">n</field>
</block>
</value>
<statement name="DO">
<block type="math_change">
<field name="VAR" variabletype="">reading</field>
<value name="DELTA">
<block type="espruino_analogRead">
<value name="PIN">
<block type="espruino_pin">
<field name="PIN">D30</field>
</block>
</value>
</block>
</value>
</block>
</statement>
<next>
<block type="variables_set" inline="false">
<field name="VAR" variabletype="">Vbatt</field>
<value name="VALUE">
<block type="math_arithmetic">
<field name="OP">DIVIDE</field>
<value name="A">
<block type="math_round">
<field name="OP">ROUND</field>
<value name="NUM">
<block type="math_arithmetic">
<field name="OP">MULTIPLY</field>
<value name="A">
<block type="math_number">
<field name="NUM">10000</field>
</block>
</value>
<value name="B">
<block type="math_arithmetic">
<field name="OP">DIVIDE</field>
<value name="A">
<block type="math_arithmetic">
<field name="OP">MULTIPLY</field>
<value name="A">
<block type="math_number">
<field name="NUM">13.482</field>
</block>
</value>
<value name="B">
<block type="variables_get">
<field name="VAR" variabletype="">reading</field>
</block>
</value>
</block>
</value>
<value name="B">
<block type="variables_get">
<field name="VAR" variabletype="">n</field>
</block>
</value>
</block>
</value>
</block>
</value>
</block>
</value>
<value name="B">
<block type="math_number">
<field name="NUM">10000</field>
</block>
</value>
</block>
</value>
<next>
<block type="variables_set" inline="false">
<field name="VAR" variabletype="">txtVbatt</field>
<value name="VALUE">
<block type="text">
<field name="TEXT">Battery voltage: </field>
</block>
</value>
<next>
<block type="text_append" inline="false">
<field name="VAR" variabletype="">txtVbatt</field>
<value name="TEXT">
<block type="variables_get">
<field name="VAR" variabletype="">Vbatt</field>
</block>
</value>
<next>
<block type="text_append" inline="false">
<field name="VAR" variabletype="">txtVbatt</field>
<value name="TEXT">
<block type="text">
<field name="TEXT"> v</field>
</block>
</value>
<next>
<block type="text_print" inline="false">
<value name="TEXT">
<block type="variables_get">
<field name="VAR" variabletype="">txtVbatt</field>
</block>
</value>
<next>
<block type="espruino_delay">
<value name="SECONDS">
<block type="math_number">
<field name="NUM">2</field>
</block>
</value>
</block>
</next>
</block>
</next>
</block>
</next>
</block>
</next>
</block>
</next>
</block>
</next>
</block>
</next>
</block>
</statement>
</block>
</next>
</block>
</next>
</block>
</xml>Chrome Dev Console error
blockly_compressed.js:118 Uncaught (in promise) Error: DOMParser was unable to parse:
at Object.textToDom (blockly_compressed.js:118:414)
at Object.setXML (index.js:104041:52)
at setActiveFile (index.js:98940:35)
at createNewTab (index.js:99033:5)
at index.js:99258:22
at Array.forEach (<anonymous>)
at index.js:99256:21
Screenshot of IDE editor:
Despite the parse error, a program tab is still created in the tab bar. Navigating to this tab shows an empty editor. It is not possible to close the tab, unless you refresh the page.