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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
const {escapeCSSComment} = require("devtools/shared/css/parsing-utils");
const {getCssProperties} = require("devtools/shared/fronts/css-properties");
/**
* TextProperty is responsible for the following:
* Manages a single property from the authoredText attribute of the
* relevant declaration.
* Maintains a list of computed properties that come from this
* property declaration.
* Changes to the TextProperty are sent to its related Rule for
* application.
*
* @param {Rule} rule
* The rule this TextProperty came from.
* @param {String} name
* The text property name (such as "background" or "border-top").
* @param {String} value
* The property's value (not including priority).
* @param {String} priority
* The property's priority (either "important" or an empty string).
* @param {Boolean} enabled
* Whether the property is enabled.
* @param {Boolean} invisible
* Whether the property is invisible. An invisible property
* does not show up in the UI; these are needed so that the
* index of a property in Rule.textProps is the same as the index
* coming from parseDeclarations.
*/
function TextProperty(rule, name, value, priority, enabled = true,
invisible = false) {
this.rule = rule;
this.name = name;
this.value = value;
this.priority = priority;
this.enabled = !!enabled;
this.invisible = invisible;
this.panelDoc = this.rule.elementStyle.ruleView.inspector.panelDoc;
const toolbox = this.rule.elementStyle.ruleView.inspector.toolbox;
this.cssProperties = getCssProperties(toolbox);
this.updateComputed();
}
TextProperty.prototype = {
/**
* Update the editor associated with this text property,
* if any.
*/
updateEditor: function () {
if (this.editor) {
this.editor.update();
}
},
/**
* Update the list of computed properties for this text property.
*/
updateComputed: function () {
if (!this.name) {
return;
}
// This is a bit funky. To get the list of computed properties
// for this text property, we'll set the property on a dummy element
// and see what the computed style looks like.
let dummyElement = this.rule.elementStyle.ruleView.dummyElement;
let dummyStyle = dummyElement.style;
dummyStyle.cssText = "";
dummyStyle.setProperty(this.name, this.value, this.priority);
this.computed = [];
// Manually get all the properties that are set when setting a value on
// this.name and check the computed style on dummyElement for each one.
// If we just read dummyStyle, it would skip properties when value === "".
let subProps = this.cssProperties.getSubproperties(this.name);
for (let prop of subProps) {
this.computed.push({
textProp: this,
name: prop,
value: dummyStyle.getPropertyValue(prop),
priority: dummyStyle.getPropertyPriority(prop),
});
}
},
/**
* Set all the values from another TextProperty instance into
* this TextProperty instance.
*
* @param {TextProperty} prop
* The other TextProperty instance.
*/
set: function (prop) {
let changed = false;
for (let item of ["name", "value", "priority", "enabled"]) {
if (this[item] !== prop[item]) {
this[item] = prop[item];
changed = true;
}
}
if (changed) {
this.updateEditor();
}
},
setValue: function (value, priority, force = false) {
let store = this.rule.elementStyle.store;
if (this.editor && value !== this.editor.committed.value || force) {
store.userProperties.setProperty(this.rule.style, this.name, value);
}
this.rule.setPropertyValue(this, value, priority);
this.updateEditor();
},
/**
* Called when the property's value has been updated externally, and
* the property and editor should update.
*/
noticeNewValue: function (value) {
if (value !== this.value) {
this.value = value;
this.updateEditor();
}
},
setName: function (name) {
let store = this.rule.elementStyle.store;
if (name !== this.name) {
store.userProperties.setProperty(this.rule.style, name,
this.editor.committed.value);
}
this.rule.setPropertyName(this, name);
this.updateEditor();
},
setEnabled: function (value) {
this.rule.setPropertyEnabled(this, value);
this.updateEditor();
},
remove: function () {
this.rule.removeProperty(this);
},
/**
* Return a string representation of the rule property.
*/
stringifyProperty: function () {
// Get the displayed property value
let declaration = this.name + ": " + this.editor.valueSpan.textContent +
";";
// Comment out property declarations that are not enabled
if (!this.enabled) {
declaration = "/* " + escapeCSSComment(declaration) + " */";
}
return declaration;
},
/**
* See whether this property's name is known.
*
* @return {Boolean} true if the property name is known, false otherwise.
*/
isKnownProperty: function () {
return this.cssProperties.isKnown(this.name);
},
/**
* Validate this property. Does it make sense for this value to be assigned
* to this property name?
*
* @return {Boolean} true if the property value is valid, false otherwise.
*/
isValid: function () {
// Starting with FF49, StyleRuleActors provide a list of parsed
// declarations, with data about their validity, but if we don't have this,
// compute validity locally (which might not be correct, but better than
// nothing).
if (!this.rule.domRule.declarations) {
return this.cssProperties.isValidOnClient(this.name, this.value, this.panelDoc);
}
let selfIndex = this.rule.textProps.indexOf(this);
// When adding a new property in the rule-view, the TextProperty object is
// created right away before the rule gets updated on the server, so we're
// not going to find the corresponding declaration object yet. Default to
// true.
if (!this.rule.domRule.declarations[selfIndex]) {
return true;
}
return this.rule.domRule.declarations[selfIndex].isValid;
}
};
exports.TextProperty = TextProperty;
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