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ce7bae8834
Spec: https://html.spec.whatwg.org/multipage/#dom-textarea/input-setrangetext In order to do this, we need to define the SelectionMode enum in WebIDL: https://html.spec.whatwg.org/multipage/#selectionmode Since the enum is used by HTMLTextAreaElement and HTMLInputElement, it doesn't seem to make sense to define it in the WebIDL file for one or other of those. However, we also can't create a stand-alone SelectionMode.webidl file, because the current binding-generation code won't generate a "pub mod SelectionMode;" line in mod.rs unless SelectionMode.webidl contains either an interface or a namespace. (This logic happens in components/script/dom/bindings/codegen/Configuration.py:35, in the Configuration.__init__ method.) I thought about changing the binding-generation code, but that seems difficult. So I settled for placing the enum inside HTMLFormElement.webidl, as that seems like a "neutral" location. We could equally settle for putting it under HTMLTextAreaElement or HTMLInputElement, it probably doesn't really matter. The setRangeText algorithm set the "dirty value flag" on the input/textarea. I made some clean-ups related to this: 1. HTMLTextAreaElement called its dirty value flag "value_changed"; I changed this to "value_dirty" to be consistent with the spec. 2. HTMLInputElement had a "value_changed" field and also a "value_dirty" field, which were each used in slightly different places (and sometimes in both places). I consolidated these into a single "value_dirty" field, which was necessary in order to make some of the tests pass. TextControl::set_dom_range_text replaces part of the existing textinput content with the replacement string (steps 9-10 of the algorithm). My implementation changes the textinput's selection and then replaces the selection. A downside of this approach is that we lose the original selection state from before the call to setRangeText. Therefore, we have to save the state into the original_selection_state variable so that we can later pass it into TextControl::set_selection_range. This allows TextControl::set_selection_range to correctly decide whether or not to fire the select event. An alternative approach would be to implement a method on TextInput which allows a subtring of the content to be mutated, without touching the current selection state. However, any such method would potentially put the TextInput into an inconsistent state where the edit_point and/or selection_origin is a TextPoint which doesn't exist in the content. It would be up to the caller to subsequently make sure that the TextInput gets put back into a valid state (which would actually happen, when TextControl::set_selection_range is called). I think TextInput's public API should not make it possible to put it into an invalid state, as that would be a potential source of bugs. That's why I didn't take this approach. (TextInput's public API does currently make it possible to create an invalid state, but I'd like to submit a follow-up patch to lock this down.)
119 lines
3.8 KiB
Text
119 lines
3.8 KiB
Text
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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// https://html.spec.whatwg.org/multipage/#htmlinputelement
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[HTMLConstructor]
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interface HTMLInputElement : HTMLElement {
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[CEReactions]
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attribute DOMString accept;
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[CEReactions]
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attribute DOMString alt;
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// [CEReactions]
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// attribute DOMString autocomplete;
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// [CEReactions]
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// attribute boolean autofocus;
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[CEReactions]
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attribute boolean defaultChecked;
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attribute boolean checked;
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[CEReactions]
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attribute DOMString dirName;
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[CEReactions]
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attribute boolean disabled;
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readonly attribute HTMLFormElement? form;
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readonly attribute FileList? files;
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[CEReactions]
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attribute DOMString formAction;
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[CEReactions]
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attribute DOMString formEnctype;
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[CEReactions]
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attribute DOMString formMethod;
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[CEReactions]
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attribute boolean formNoValidate;
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[CEReactions]
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attribute DOMString formTarget;
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// [CEReactions]
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// attribute unsigned long height;
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attribute boolean indeterminate;
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// [CEReactions]
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// attribute DOMString inputMode;
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// readonly attribute HTMLElement? list;
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[CEReactions]
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attribute DOMString max;
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[CEReactions, SetterThrows]
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attribute long maxLength;
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[CEReactions]
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attribute DOMString min;
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[CEReactions, SetterThrows]
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attribute long minLength;
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[CEReactions]
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attribute boolean multiple;
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[CEReactions]
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attribute DOMString name;
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[CEReactions]
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attribute DOMString pattern;
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[CEReactions]
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attribute DOMString placeholder;
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[CEReactions]
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attribute boolean readOnly;
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[CEReactions]
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attribute boolean required;
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[CEReactions, SetterThrows]
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attribute unsigned long size;
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[CEReactions]
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attribute DOMString src;
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[CEReactions]
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attribute DOMString step;
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[CEReactions]
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attribute DOMString type;
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[CEReactions]
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attribute DOMString defaultValue;
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[CEReactions, TreatNullAs=EmptyString, SetterThrows]
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attribute DOMString value;
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// attribute Date? valueAsDate;
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// attribute unrestricted double valueAsNumber;
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// attribute double valueLow;
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// attribute double valueHigh;
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// [CEReactions]
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// attribute unsigned long width;
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//void stepUp(optional long n = 1);
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//void stepDown(optional long n = 1);
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//readonly attribute boolean willValidate;
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//readonly attribute ValidityState validity;
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//readonly attribute DOMString validationMessage;
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//boolean checkValidity();
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//boolean reportValidity();
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//void setCustomValidity(DOMString error);
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readonly attribute NodeList labels;
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void select();
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[SetterThrows]
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attribute unsigned long? selectionStart;
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[SetterThrows]
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attribute unsigned long? selectionEnd;
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[SetterThrows]
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attribute DOMString? selectionDirection;
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[Throws]
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void setRangeText(DOMString replacement);
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[Throws]
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void setRangeText(DOMString replacement, unsigned long start, unsigned long end,
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optional SelectionMode selectionMode = "preserve");
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[Throws]
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void setSelectionRange(unsigned long start, unsigned long end, optional DOMString direction);
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// also has obsolete members
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// Select with file-system paths for testing purpose
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[Pref="dom.testing.htmlinputelement.select_files.enabled"]
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void selectFiles(sequence<DOMString> path);
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};
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// https://html.spec.whatwg.org/multipage/#HTMLInputElement-partial
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partial interface HTMLInputElement {
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// attribute DOMString align;
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// attribute DOMString useMap;
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};
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