HUDService creates a textbox for GCLI (line 6910) https://hg.mozilla.org/users/jwalker_mozilla.com/gcli-patches/file/451c73812525/bug656666-hudservice.patch#l443 this.inputNode = this.document.createElement("textbox"); this.inputNode.setAttribute("class", "gcliterm-input-node"); this.inputNode.setAttribute("multiline", "true"); this.inputNode.setAttribute("rows", "1"); This is passed to GCLI (line 6849) https://hg.mozilla.org/users/jwalker_mozilla.com/gcli-patches/file/451c73812525/bug656666-hudservice.patch#l382 gcli._internal.createView({ document: this.document, inputElement: this.inputNode, completeElement: this.completeNode, inputBackgroundElement: this.inputStack, completionPrompt: '' }); It the inputElement is passed to inputter.js and used as this.element (line 75) https://github.com/mozilla/gcli/blob/d8fe0b795e13a73633246677ecc6d4ab61a09dfd/lib/gcli/ui/inputter.js#L75 When we read from the element, value is empty even when something has been typed in.
For the sake of posterity some debug code we were using in Inputter.updateCli: console.debug('input', input); console.debug('this.element', this.element); console.debug('gOPDv1', Object.getOwnPropertyDescriptor(this.element, 'value')); console.debug('this.completer.element', this.completer.element); console.debug('gOPDv2', Object.getOwnPropertyDescriptor(this.completer.element, 'value')); console.debug('_lS_v', this.element.__lookupSetter__('value')); var textbox = this.element; console.debug('textbox.value === undefined', textbox.value === undefined); //console.debug('textbox.getAttribute(value).length', textbox.getAttribute('value').length); console.debug('textbox.selectionStart', textbox.selectionStart); console.debug('textbox.type', textbox.getAttribute('type')); console.debug('textbox.size', textbox.getAttribute('size'));
Bug 680453 is the result of some study into this problem. We have a workaround for now.
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