mirror of
https://github.com/mozilla/gecko-dev.git
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1267 lines
40 KiB
JavaScript
1267 lines
40 KiB
JavaScript
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* 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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/**
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* Basic use:
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* let spanToEdit = document.getElementById("somespan");
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*
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* editableField({
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* element: spanToEdit,
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* done: function(value, commit, direction) {
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* if (commit) {
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* spanToEdit.textContent = value;
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* }
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* },
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* trigger: "dblclick"
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* });
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*
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* See editableField() for more options.
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*/
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"use strict";
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const {Ci, Cu, Cc} = require("chrome");
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const HTML_NS = "http://www.w3.org/1999/xhtml";
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const CONTENT_TYPES = {
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PLAIN_TEXT: 0,
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CSS_VALUE: 1,
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CSS_MIXED: 2,
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CSS_PROPERTY: 3,
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};
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const MAX_POPUP_ENTRIES = 10;
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const FOCUS_FORWARD = Ci.nsIFocusManager.MOVEFOCUS_FORWARD;
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const FOCUS_BACKWARD = Ci.nsIFocusManager.MOVEFOCUS_BACKWARD;
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Cu.import("resource://gre/modules/Services.jsm");
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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Cu.import("resource://devtools/shared/event-emitter.js");
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/**
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* Mark a span editable. |editableField| will listen for the span to
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* be focused and create an InlineEditor to handle text input.
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* Changes will be committed when the InlineEditor's input is blurred
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* or dropped when the user presses escape.
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*
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* @param {Object} options
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* Options for the editable field, including:
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* {Element} element:
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* (required) The span to be edited on focus.
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* {Function} canEdit:
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* Will be called before creating the inplace editor. Editor
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* won't be created if canEdit returns false.
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* {Function} start:
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* Will be called when the inplace editor is initialized.
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* {Function} change:
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* Will be called when the text input changes. Will be called
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* with the current value of the text input.
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* {Function} done:
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* Called when input is committed or blurred. Called with
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* current value, a boolean telling the caller whether to
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* commit the change, and the direction of the next element to be
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* selected. Direction may be one of nsIFocusManager.MOVEFOCUS_FORWARD,
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* nsIFocusManager.MOVEFOCUS_BACKWARD, or null (no movement).
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* This function is called before the editor has been torn down.
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* {Function} destroy:
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* Called when the editor is destroyed and has been torn down.
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* {Object} advanceChars:
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* This can be either a string or a function.
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* If it is a string, then if any characters in it are typed,
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* focus will advance to the next element.
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* Otherwise, if it is a function, then the function will
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* be called with three arguments: a key code, the current text,
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* and the insertion point. If the function returns true,
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* then the focus advance takes place. If it returns false,
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* then the character is inserted instead.
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* {Boolean} stopOnReturn:
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* If true, the return key will not advance the editor to the next
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* focusable element.
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* {Boolean} stopOnTab:
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* If true, the tab key will not advance the editor to the next
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* focusable element.
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* {Boolean} stopOnShiftTab:
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* If true, shift tab will not advance the editor to the previous
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* focusable element.
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* {String} trigger: The DOM event that should trigger editing,
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* defaults to "click"
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* {Boolean} multiline: Should the editor be a multiline textarea?
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* defaults to false
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* {Boolean} trimOutput: Should the returned string be trimmed?
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* defaults to true
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* {Boolean} preserveTextStyles: If true, do not copy text-related styles
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* from `element` to the new input.
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* defaults to false
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*/
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function editableField(options) {
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return editableItem(options, function(element, event) {
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if (!options.element.inplaceEditor) {
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new InplaceEditor(options, event);
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}
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});
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}
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exports.editableField = editableField;
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/**
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* Handle events for an element that should respond to
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* clicks and sit in the editing tab order, and call
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* a callback when it is activated.
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*
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* @param {Object} options
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* The options for this editor, including:
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* {Element} element: The DOM element.
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* {String} trigger: The DOM event that should trigger editing,
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* defaults to "click"
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* @param {Function} callback
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* Called when the editor is activated.
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* @return {Function} function which calls callback
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*/
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function editableItem(options, callback) {
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let trigger = options.trigger || "click";
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let element = options.element;
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element.addEventListener(trigger, function(evt) {
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if (evt.target.nodeName !== "a") {
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let win = this.ownerDocument.defaultView;
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let selection = win.getSelection();
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if (trigger != "click" || selection.isCollapsed) {
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callback(element, evt);
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}
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evt.stopPropagation();
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}
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}, false);
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// If focused by means other than a click, start editing by
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// pressing enter or space.
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element.addEventListener("keypress", function(evt) {
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if (evt.keyCode === Ci.nsIDOMKeyEvent.DOM_VK_RETURN ||
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evt.charCode === Ci.nsIDOMKeyEvent.DOM_VK_SPACE) {
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callback(element);
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}
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}, true);
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// Ugly workaround - the element is focused on mousedown but
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// the editor is activated on click/mouseup. This leads
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// to an ugly flash of the focus ring before showing the editor.
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// So hide the focus ring while the mouse is down.
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element.addEventListener("mousedown", function(evt) {
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if (evt.target.nodeName !== "a") {
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let cleanup = function() {
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element.style.removeProperty("outline-style");
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element.removeEventListener("mouseup", cleanup, false);
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element.removeEventListener("mouseout", cleanup, false);
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};
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element.style.setProperty("outline-style", "none");
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element.addEventListener("mouseup", cleanup, false);
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element.addEventListener("mouseout", cleanup, false);
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}
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}, false);
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// Mark the element editable field for tab
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// navigation while editing.
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element._editable = true;
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// Save the trigger type so we can dispatch this later
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element._trigger = trigger;
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return function turnOnEditMode() {
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callback(element);
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};
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}
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exports.editableItem = editableItem;
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/*
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* Various API consumers (especially tests) sometimes want to grab the
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* inplaceEditor expando off span elements. However, when each global has its
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* own compartment, those expandos live on Xray wrappers that are only visible
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* within this JSM. So we provide a little workaround here.
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*/
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function getInplaceEditorForSpan(span) {
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return span.inplaceEditor;
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}
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exports.getInplaceEditorForSpan = getInplaceEditorForSpan;
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function InplaceEditor(options, event) {
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this.elt = options.element;
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let doc = this.elt.ownerDocument;
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this.doc = doc;
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this.elt.inplaceEditor = this;
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this.change = options.change;
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this.done = options.done;
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this.destroy = options.destroy;
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this.initial = options.initial ? options.initial : this.elt.textContent;
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this.multiline = options.multiline || false;
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this.trimOutput = options.trimOutput === undefined
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? true
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: !!options.trimOutput;
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this.stopOnShiftTab = !!options.stopOnShiftTab;
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this.stopOnTab = !!options.stopOnTab;
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this.stopOnReturn = !!options.stopOnReturn;
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this.contentType = options.contentType || CONTENT_TYPES.PLAIN_TEXT;
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this.property = options.property;
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this.popup = options.popup;
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this.preserveTextStyles = options.preserveTextStyles === undefined
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? false
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: !!options.preserveTextStyles;
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this._onBlur = this._onBlur.bind(this);
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this._onKeyPress = this._onKeyPress.bind(this);
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this._onInput = this._onInput.bind(this);
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this._onKeyup = this._onKeyup.bind(this);
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this._createInput();
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this._autosize();
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this.inputCharWidth = this._getInputCharWidth();
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// Pull out character codes for advanceChars, listing the
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// characters that should trigger a blur.
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if (typeof options.advanceChars === "function") {
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this._advanceChars = options.advanceChars;
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} else {
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let advanceCharcodes = {};
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let advanceChars = options.advanceChars || "";
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for (let i = 0; i < advanceChars.length; i++) {
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advanceCharcodes[advanceChars.charCodeAt(i)] = true;
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}
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this._advanceChars = aCharCode => aCharCode in advanceCharcodes;
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}
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// Hide the provided element and add our editor.
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this.originalDisplay = this.elt.style.display;
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this.elt.style.display = "none";
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this.elt.parentNode.insertBefore(this.input, this.elt);
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this.input.focus();
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if (typeof options.selectAll == "undefined" || options.selectAll) {
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this.input.select();
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}
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if (this.contentType == CONTENT_TYPES.CSS_VALUE && this.input.value == "") {
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this._maybeSuggestCompletion(true);
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}
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this.input.addEventListener("blur", this._onBlur, false);
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this.input.addEventListener("keypress", this._onKeyPress, false);
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this.input.addEventListener("input", this._onInput, false);
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this.input.addEventListener("dblclick", this._stopEventPropagation, false);
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this.input.addEventListener("click", this._stopEventPropagation, false);
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this.input.addEventListener("mousedown", this._stopEventPropagation, false);
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this.validate = options.validate;
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if (this.validate) {
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this.input.addEventListener("keyup", this._onKeyup, false);
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}
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this._updateSize();
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if (options.start) {
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options.start(this, event);
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}
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EventEmitter.decorate(this);
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}
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exports.InplaceEditor = InplaceEditor;
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InplaceEditor.CONTENT_TYPES = CONTENT_TYPES;
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InplaceEditor.prototype = {
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get currentInputValue() {
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let val = this.trimOutput ? this.input.value.trim() : this.input.value;
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return val;
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},
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_createInput: function() {
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this.input =
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this.doc.createElementNS(HTML_NS, this.multiline ? "textarea" : "input");
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this.input.inplaceEditor = this;
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this.input.classList.add("styleinspector-propertyeditor");
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this.input.value = this.initial;
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if (!this.preserveTextStyles) {
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copyTextStyles(this.elt, this.input);
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}
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},
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/**
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* Get rid of the editor.
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*/
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_clear: function() {
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if (!this.input) {
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// Already cleared.
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return;
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}
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this.input.removeEventListener("blur", this._onBlur, false);
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this.input.removeEventListener("keypress", this._onKeyPress, false);
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this.input.removeEventListener("keyup", this._onKeyup, false);
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this.input.removeEventListener("input", this._onInput, false);
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this.input.removeEventListener("dblclick", this._stopEventPropagation, false);
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this.input.removeEventListener("click", this._stopEventPropagation, false);
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this.input.removeEventListener("mousedown", this._stopEventPropagation, false);
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this._stopAutosize();
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this.elt.style.display = this.originalDisplay;
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if (this.doc.activeElement == this.input) {
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this.elt.focus();
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}
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this.input.remove();
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this.input = null;
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delete this.elt.inplaceEditor;
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delete this.elt;
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if (this.destroy) {
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this.destroy();
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}
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},
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/**
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* Keeps the editor close to the size of its input string. This is pretty
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* crappy, suggestions for improvement welcome.
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*/
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_autosize: function() {
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// Create a hidden, absolutely-positioned span to measure the text
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// in the input. Boo.
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// We can't just measure the original element because a) we don't
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// change the underlying element's text ourselves (we leave that
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// up to the client), and b) without tweaking the style of the
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// original element, it might wrap differently or something.
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this._measurement =
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this.doc.createElementNS(HTML_NS, this.multiline ? "pre" : "span");
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this._measurement.className = "autosizer";
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this.elt.parentNode.appendChild(this._measurement);
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let style = this._measurement.style;
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style.visibility = "hidden";
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style.position = "absolute";
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style.top = "0";
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style.left = "0";
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copyTextStyles(this.input, this._measurement);
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this._updateSize();
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},
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/**
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* Clean up the mess created by _autosize().
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*/
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_stopAutosize: function() {
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if (!this._measurement) {
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return;
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}
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this._measurement.remove();
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delete this._measurement;
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},
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/**
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* Size the editor to fit its current contents.
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*/
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_updateSize: function() {
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// Replace spaces with non-breaking spaces. Otherwise setting
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// the span's textContent will collapse spaces and the measurement
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// will be wrong.
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this._measurement.textContent = this.input.value.replace(/ /g, "\u00a0");
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// We add a bit of padding to the end. Should be enough to fit
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// any letter that could be typed, otherwise we'll scroll before
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// we get a chance to resize. Yuck.
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let width = this._measurement.offsetWidth + 10;
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if (this.multiline) {
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// Make sure there's some content in the current line. This is a hack to
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// account for the fact that after adding a newline the <pre> doesn't grow
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// unless there's text content on the line.
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width += 15;
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this.input.style.height = this._measurement.offsetHeight + "px";
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}
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this.input.style.width = width + "px";
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},
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/**
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* Get the width of a single character in the input to properly position the
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* autocompletion popup.
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*/
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_getInputCharWidth: function() {
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// Just make the text content to be 'x' to get the width of any character in
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// a monospace font.
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this._measurement.textContent = "x";
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return this._measurement.offsetWidth;
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},
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/**
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* Increment property values in rule view.
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*
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* @param {Number} increment
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* The amount to increase/decrease the property value.
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* @return {Boolean} true if value has been incremented.
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*/
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_incrementValue: function(increment) {
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let value = this.input.value;
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let selectionStart = this.input.selectionStart;
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let selectionEnd = this.input.selectionEnd;
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let newValue = this._incrementCSSValue(value, increment, selectionStart,
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selectionEnd);
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if (!newValue) {
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return false;
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}
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this.input.value = newValue.value;
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this.input.setSelectionRange(newValue.start, newValue.end);
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this._doValidation();
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// Call the user's change handler if available.
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if (this.change) {
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this.change(this.currentInputValue);
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}
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return true;
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},
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/**
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* Increment the property value based on the property type.
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*
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* @param {String} value
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* Property value.
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* @param {Number} increment
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* Amount to increase/decrease the property value.
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* @param {Number} selStart
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* Starting index of the value.
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* @param {Number} selEnd
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* Ending index of the value.
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* @return {Object} object with properties 'value', 'start', and 'end'.
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*/
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_incrementCSSValue: function(value, increment, selStart, selEnd) {
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let range = this._parseCSSValue(value, selStart);
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let type = (range && range.type) || "";
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let rawValue = (range ? value.substring(range.start, range.end) : "");
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let incrementedValue = null, selection;
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if (type === "num") {
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let newValue = this._incrementRawValue(rawValue, increment);
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if (newValue !== null) {
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incrementedValue = newValue;
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selection = [0, incrementedValue.length];
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}
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} else if (type === "hex") {
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let exprOffset = selStart - range.start;
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let exprOffsetEnd = selEnd - range.start;
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let newValue = this._incHexColor(rawValue, increment, exprOffset,
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exprOffsetEnd);
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if (newValue) {
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incrementedValue = newValue.value;
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selection = newValue.selection;
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}
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} else {
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let info;
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if (type === "rgb" || type === "hsl") {
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info = {};
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let part = value.substring(range.start, selStart).split(",").length - 1;
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if (part === 3) { // alpha
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info.minValue = 0;
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info.maxValue = 1;
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} else if (type === "rgb") {
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info.minValue = 0;
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info.maxValue = 255;
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} else if (part !== 0) { // hsl percentage
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info.minValue = 0;
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info.maxValue = 100;
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// select the previous number if the selection is at the end of a
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// percentage sign.
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if (value.charAt(selStart - 1) === "%") {
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--selStart;
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}
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}
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}
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return this._incrementGenericValue(value, increment, selStart, selEnd,
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info);
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}
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if (incrementedValue === null) {
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return null;
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}
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let preRawValue = value.substr(0, range.start);
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let postRawValue = value.substr(range.end);
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return {
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value: preRawValue + incrementedValue + postRawValue,
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start: range.start + selection[0],
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end: range.start + selection[1]
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};
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},
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/**
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* Parses the property value and type.
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*
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* @param {String} value
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* Property value.
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* @param {Number} offset
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* Starting index of value.
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* @return {Object} object with properties 'value', 'start', 'end', and
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* 'type'.
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*/
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_parseCSSValue: function(value, offset) {
|
|
const reSplitCSS = /(url\("?[^"\)]+"?\)?)|(rgba?\([^)]*\)?)|(hsla?\([^)]*\)?)|(#[\dA-Fa-f]+)|(-?\d*\.?\d+(%|[a-z]{1,4})?)|"([^"]*)"?|'([^']*)'?|([^,\s\/!\(\)]+)|(!(.*)?)/;
|
|
let start = 0;
|
|
let m;
|
|
|
|
// retreive values from left to right until we find the one at our offset
|
|
while ((m = reSplitCSS.exec(value)) &&
|
|
(m.index + m[0].length < offset)) {
|
|
value = value.substr(m.index + m[0].length);
|
|
start += m.index + m[0].length;
|
|
offset -= m.index + m[0].length;
|
|
}
|
|
|
|
if (!m) {
|
|
return null;
|
|
}
|
|
|
|
let type;
|
|
if (m[1]) {
|
|
type = "url";
|
|
} else if (m[2]) {
|
|
type = "rgb";
|
|
} else if (m[3]) {
|
|
type = "hsl";
|
|
} else if (m[4]) {
|
|
type = "hex";
|
|
} else if (m[5]) {
|
|
type = "num";
|
|
}
|
|
|
|
return {
|
|
value: m[0],
|
|
start: start + m.index,
|
|
end: start + m.index + m[0].length,
|
|
type: type
|
|
};
|
|
},
|
|
|
|
/**
|
|
* Increment the property value for types other than
|
|
* number or hex, such as rgb, hsl, and file names.
|
|
*
|
|
* @param {String} value
|
|
* Property value.
|
|
* @param {Number} increment
|
|
* Amount to increment/decrement.
|
|
* @param {Number} offset
|
|
* Starting index of the property value.
|
|
* @param {Number} offsetEnd
|
|
* Ending index of the property value.
|
|
* @param {Object} info
|
|
* Object with details about the property value.
|
|
* @return {Object} object with properties 'value', 'start', and 'end'.
|
|
*/
|
|
_incrementGenericValue: function(value, increment, offset, offsetEnd, info) {
|
|
// Try to find a number around the cursor to increment.
|
|
let start, end;
|
|
// Check if we are incrementing in a non-number context (such as a URL)
|
|
if (/^-?[0-9.]/.test(value.substring(offset, offsetEnd)) &&
|
|
!(/\d/.test(value.charAt(offset - 1) + value.charAt(offsetEnd)))) {
|
|
// We have a number selected, possibly with a suffix, and we are not in
|
|
// the disallowed case of just part of a known number being selected.
|
|
// Use that number.
|
|
start = offset;
|
|
end = offsetEnd;
|
|
} else {
|
|
// Parse periods as belonging to the number only if we are in a known
|
|
// number context. (This makes incrementing the 1 in 'image1.gif' work.)
|
|
let pattern = "[" + (info ? "0-9." : "0-9") + "]*";
|
|
let before = new RegExp(pattern + "$").exec(value.substr(0, offset))[0].length;
|
|
let after = new RegExp("^" + pattern).exec(value.substr(offset))[0].length;
|
|
|
|
start = offset - before;
|
|
end = offset + after;
|
|
|
|
// Expand the number to contain an initial minus sign if it seems
|
|
// free-standing.
|
|
if (value.charAt(start - 1) === "-" &&
|
|
(start - 1 === 0 || /[ (:,='"]/.test(value.charAt(start - 2)))) {
|
|
--start;
|
|
}
|
|
}
|
|
|
|
if (start !== end) {
|
|
// Include percentages as part of the incremented number (they are
|
|
// common enough).
|
|
if (value.charAt(end) === "%") {
|
|
++end;
|
|
}
|
|
|
|
let first = value.substr(0, start);
|
|
let mid = value.substring(start, end);
|
|
let last = value.substr(end);
|
|
|
|
mid = this._incrementRawValue(mid, increment, info);
|
|
|
|
if (mid !== null) {
|
|
return {
|
|
value: first + mid + last,
|
|
start: start,
|
|
end: start + mid.length
|
|
};
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Increment the property value for numbers.
|
|
*
|
|
* @param {String} rawValue
|
|
* Raw value to increment.
|
|
* @param {Number} increment
|
|
* Amount to increase/decrease the raw value.
|
|
* @param {Object} info
|
|
* Object with info about the property value.
|
|
* @return {String} the incremented value.
|
|
*/
|
|
_incrementRawValue: function(rawValue, increment, info) {
|
|
let num = parseFloat(rawValue);
|
|
|
|
if (isNaN(num)) {
|
|
return null;
|
|
}
|
|
|
|
let number = /\d+(\.\d+)?/.exec(rawValue);
|
|
let units = rawValue.substr(number.index + number[0].length);
|
|
|
|
// avoid rounding errors
|
|
let newValue = Math.round((num + increment) * 1000) / 1000;
|
|
|
|
if (info && "minValue" in info) {
|
|
newValue = Math.max(newValue, info.minValue);
|
|
}
|
|
if (info && "maxValue" in info) {
|
|
newValue = Math.min(newValue, info.maxValue);
|
|
}
|
|
|
|
newValue = newValue.toString();
|
|
|
|
return newValue + units;
|
|
},
|
|
|
|
/**
|
|
* Increment the property value for hex.
|
|
*
|
|
* @param {String} value
|
|
* Property value.
|
|
* @param {Number} increment
|
|
* Amount to increase/decrease the property value.
|
|
* @param {Number} offset
|
|
* Starting index of the property value.
|
|
* @param {Number} offsetEnd
|
|
* Ending index of the property value.
|
|
* @return {Object} object with properties 'value' and 'selection'.
|
|
*/
|
|
_incHexColor: function(rawValue, increment, offset, offsetEnd) {
|
|
// Return early if no part of the rawValue is selected.
|
|
if (offsetEnd > rawValue.length && offset >= rawValue.length) {
|
|
return null;
|
|
}
|
|
if (offset < 1 && offsetEnd <= 1) {
|
|
return null;
|
|
}
|
|
// Ignore the leading #.
|
|
rawValue = rawValue.substr(1);
|
|
--offset;
|
|
--offsetEnd;
|
|
|
|
// Clamp the selection to within the actual value.
|
|
offset = Math.max(offset, 0);
|
|
offsetEnd = Math.min(offsetEnd, rawValue.length);
|
|
offsetEnd = Math.max(offsetEnd, offset);
|
|
|
|
// Normalize #ABC -> #AABBCC.
|
|
if (rawValue.length === 3) {
|
|
rawValue = rawValue.charAt(0) + rawValue.charAt(0) +
|
|
rawValue.charAt(1) + rawValue.charAt(1) +
|
|
rawValue.charAt(2) + rawValue.charAt(2);
|
|
offset *= 2;
|
|
offsetEnd *= 2;
|
|
}
|
|
|
|
if (rawValue.length !== 6) {
|
|
return null;
|
|
}
|
|
|
|
// If no selection, increment an adjacent color, preferably one to the left.
|
|
if (offset === offsetEnd) {
|
|
if (offset === 0) {
|
|
offsetEnd = 1;
|
|
} else {
|
|
offset = offsetEnd - 1;
|
|
}
|
|
}
|
|
|
|
// Make the selection cover entire parts.
|
|
offset -= offset % 2;
|
|
offsetEnd += offsetEnd % 2;
|
|
|
|
// Remap the increments from [0.1, 1, 10] to [1, 1, 16].
|
|
if (increment > -1 && increment < 1) {
|
|
increment = (increment < 0 ? -1 : 1);
|
|
}
|
|
if (Math.abs(increment) === 10) {
|
|
increment = (increment < 0 ? -16 : 16);
|
|
}
|
|
|
|
let isUpper = (rawValue.toUpperCase() === rawValue);
|
|
|
|
for (let pos = offset; pos < offsetEnd; pos += 2) {
|
|
// Increment the part in [pos, pos+2).
|
|
let mid = rawValue.substr(pos, 2);
|
|
let value = parseInt(mid, 16);
|
|
|
|
if (isNaN(value)) {
|
|
return null;
|
|
}
|
|
|
|
mid = Math.min(Math.max(value + increment, 0), 255).toString(16);
|
|
|
|
while (mid.length < 2) {
|
|
mid = "0" + mid;
|
|
}
|
|
if (isUpper) {
|
|
mid = mid.toUpperCase();
|
|
}
|
|
|
|
rawValue = rawValue.substr(0, pos) + mid + rawValue.substr(pos + 2);
|
|
}
|
|
|
|
return {
|
|
value: "#" + rawValue,
|
|
selection: [offset + 1, offsetEnd + 1]
|
|
};
|
|
},
|
|
|
|
/**
|
|
* Cycle through the autocompletion suggestions in the popup.
|
|
*
|
|
* @param {Boolean} reverse
|
|
* true to select previous item from the popup.
|
|
* @param {Boolean} noSelect
|
|
* true to not select the text after selecting the newly selectedItem
|
|
* from the popup.
|
|
*/
|
|
_cycleCSSSuggestion: function(reverse, noSelect) {
|
|
// selectedItem can be null when nothing is selected in an empty editor.
|
|
let {label, preLabel} = this.popup.selectedItem ||
|
|
{label: "", preLabel: ""};
|
|
if (reverse) {
|
|
this.popup.selectPreviousItem();
|
|
} else {
|
|
this.popup.selectNextItem();
|
|
}
|
|
|
|
this._selectedIndex = this.popup.selectedIndex;
|
|
let input = this.input;
|
|
let pre = "";
|
|
|
|
if (input.selectionStart < input.selectionEnd) {
|
|
pre = input.value.slice(0, input.selectionStart);
|
|
} else {
|
|
pre = input.value.slice(0, input.selectionStart - label.length +
|
|
preLabel.length);
|
|
}
|
|
|
|
let post = input.value.slice(input.selectionEnd, input.value.length);
|
|
let item = this.popup.selectedItem;
|
|
let toComplete = item.label.slice(item.preLabel.length);
|
|
input.value = pre + toComplete + post;
|
|
|
|
if (!noSelect) {
|
|
input.setSelectionRange(pre.length, pre.length + toComplete.length);
|
|
} else {
|
|
input.setSelectionRange(pre.length + toComplete.length,
|
|
pre.length + toComplete.length);
|
|
}
|
|
|
|
this._updateSize();
|
|
// This emit is mainly for the purpose of making the test flow simpler.
|
|
this.emit("after-suggest");
|
|
},
|
|
|
|
/**
|
|
* Call the client's done handler and clear out.
|
|
*/
|
|
_apply: function(event, direction) {
|
|
if (this._applied) {
|
|
return null;
|
|
}
|
|
|
|
this._applied = true;
|
|
|
|
if (this.done) {
|
|
let val = this.cancelled ? this.initial : this.currentInputValue;
|
|
return this.done(val, !this.cancelled, direction);
|
|
}
|
|
|
|
return null;
|
|
},
|
|
|
|
/**
|
|
* Handle loss of focus by calling done if it hasn't been called yet.
|
|
*/
|
|
_onBlur: function(event, doNotClear) {
|
|
if (event && this.popup && this.popup.isOpen &&
|
|
this.popup.selectedIndex >= 0) {
|
|
let label, preLabel;
|
|
|
|
if (this._selectedIndex === undefined) {
|
|
({label, preLabel} =
|
|
this.popup.getItemAtIndex(this.popup.selectedIndex));
|
|
} else {
|
|
({label, preLabel} = this.popup.getItemAtIndex(this._selectedIndex));
|
|
}
|
|
|
|
let input = this.input;
|
|
let pre = "";
|
|
|
|
// CSS_MIXED needs special treatment here to make it so that
|
|
// multiple presses of tab will cycle through completions, but
|
|
// without selecting the completed text. However, this same
|
|
// special treatment will do the wrong thing for other editing
|
|
// styles.
|
|
if (input.selectionStart < input.selectionEnd ||
|
|
this.contentType !== CONTENT_TYPES.CSS_MIXED) {
|
|
pre = input.value.slice(0, input.selectionStart);
|
|
} else {
|
|
pre = input.value.slice(0, input.selectionStart - label.length +
|
|
preLabel.length);
|
|
}
|
|
let post = input.value.slice(input.selectionEnd, input.value.length);
|
|
let item = this.popup.selectedItem;
|
|
this._selectedIndex = this.popup.selectedIndex;
|
|
let toComplete = item.label.slice(item.preLabel.length);
|
|
input.value = pre + toComplete + post;
|
|
input.setSelectionRange(pre.length + toComplete.length,
|
|
pre.length + toComplete.length);
|
|
this._updateSize();
|
|
// Wait for the popup to hide and then focus input async otherwise it does
|
|
// not work.
|
|
let onPopupHidden = () => {
|
|
this.popup._panel.removeEventListener("popuphidden", onPopupHidden);
|
|
this.doc.defaultView.setTimeout(()=> {
|
|
input.focus();
|
|
this.emit("after-suggest");
|
|
}, 0);
|
|
};
|
|
this.popup._panel.addEventListener("popuphidden", onPopupHidden);
|
|
this.popup.hidePopup();
|
|
// Content type other than CSS_MIXED is used in rule-view where the values
|
|
// are live previewed. So we apply the value before returning.
|
|
if (this.contentType != CONTENT_TYPES.CSS_MIXED) {
|
|
this._apply();
|
|
}
|
|
return;
|
|
}
|
|
|
|
this._apply();
|
|
|
|
if (!doNotClear) {
|
|
this._clear();
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Handle the input field's keypress event.
|
|
*/
|
|
_onKeyPress: function(event) {
|
|
let prevent = false;
|
|
|
|
const largeIncrement = 100;
|
|
const mediumIncrement = 10;
|
|
const smallIncrement = 0.1;
|
|
|
|
let increment = 0;
|
|
|
|
if (event.keyCode === Ci.nsIDOMKeyEvent.DOM_VK_UP ||
|
|
event.keyCode === Ci.nsIDOMKeyEvent.DOM_VK_PAGE_UP) {
|
|
increment = 1;
|
|
} else if (event.keyCode === Ci.nsIDOMKeyEvent.DOM_VK_DOWN ||
|
|
event.keyCode === Ci.nsIDOMKeyEvent.DOM_VK_PAGE_DOWN) {
|
|
increment = -1;
|
|
}
|
|
|
|
if (event.shiftKey && !event.altKey) {
|
|
if (event.keyCode === Ci.nsIDOMKeyEvent.DOM_VK_PAGE_UP ||
|
|
event.keyCode === Ci.nsIDOMKeyEvent.DOM_VK_PAGE_DOWN) {
|
|
increment *= largeIncrement;
|
|
} else {
|
|
increment *= mediumIncrement;
|
|
}
|
|
} else if (event.altKey && !event.shiftKey) {
|
|
increment *= smallIncrement;
|
|
}
|
|
|
|
// Use default cursor movement rather than providing auto-suggestions.
|
|
if (event.keyCode === Ci.nsIDOMKeyEvent.DOM_VK_HOME ||
|
|
event.keyCode === Ci.nsIDOMKeyEvent.DOM_VK_END ||
|
|
event.keyCode === Ci.nsIDOMKeyEvent.DOM_VK_PAGE_UP ||
|
|
event.keyCode === Ci.nsIDOMKeyEvent.DOM_VK_PAGE_DOWN) {
|
|
this._preventSuggestions = true;
|
|
}
|
|
|
|
let cycling = false;
|
|
if (increment && this._incrementValue(increment)) {
|
|
this._updateSize();
|
|
prevent = true;
|
|
cycling = true;
|
|
} else if (increment && this.popup && this.popup.isOpen) {
|
|
cycling = true;
|
|
prevent = true;
|
|
this._cycleCSSSuggestion(increment > 0);
|
|
this._doValidation();
|
|
}
|
|
|
|
if (event.keyCode === Ci.nsIDOMKeyEvent.DOM_VK_BACK_SPACE ||
|
|
event.keyCode === Ci.nsIDOMKeyEvent.DOM_VK_DELETE ||
|
|
event.keyCode === Ci.nsIDOMKeyEvent.DOM_VK_LEFT ||
|
|
event.keyCode === Ci.nsIDOMKeyEvent.DOM_VK_RIGHT) {
|
|
if (this.popup && this.popup.isOpen) {
|
|
this.popup.hidePopup();
|
|
}
|
|
} else if (!cycling && !event.metaKey && !event.altKey && !event.ctrlKey) {
|
|
this._maybeSuggestCompletion();
|
|
}
|
|
|
|
if (this.multiline &&
|
|
event.keyCode === Ci.nsIDOMKeyEvent.DOM_VK_RETURN &&
|
|
event.shiftKey) {
|
|
prevent = false;
|
|
} else if (this._advanceChars(event.charCode, this.input.value,
|
|
this.input.selectionStart) ||
|
|
event.keyCode === Ci.nsIDOMKeyEvent.DOM_VK_RETURN ||
|
|
event.keyCode === Ci.nsIDOMKeyEvent.DOM_VK_TAB) {
|
|
prevent = true;
|
|
|
|
let direction = FOCUS_FORWARD;
|
|
if (event.keyCode === Ci.nsIDOMKeyEvent.DOM_VK_TAB &&
|
|
event.shiftKey) {
|
|
if (this.stopOnShiftTab) {
|
|
direction = null;
|
|
} else {
|
|
direction = FOCUS_BACKWARD;
|
|
}
|
|
}
|
|
if ((this.stopOnReturn &&
|
|
event.keyCode === Ci.nsIDOMKeyEvent.DOM_VK_RETURN) ||
|
|
(this.stopOnTab && event.keyCode === Ci.nsIDOMKeyEvent.DOM_VK_TAB &&
|
|
!event.shiftKey)) {
|
|
direction = null;
|
|
}
|
|
|
|
// Now we don't want to suggest anything as we are moving out.
|
|
this._preventSuggestions = true;
|
|
// But we still want to show suggestions for css values. i.e. moving out
|
|
// of css property input box in forward direction
|
|
if (this.contentType == CONTENT_TYPES.CSS_PROPERTY &&
|
|
direction == FOCUS_FORWARD) {
|
|
this._preventSuggestions = false;
|
|
}
|
|
|
|
let input = this.input;
|
|
|
|
if (event.keyCode === Ci.nsIDOMKeyEvent.DOM_VK_TAB &&
|
|
this.contentType == CONTENT_TYPES.CSS_MIXED) {
|
|
if (this.popup && input.selectionStart < input.selectionEnd) {
|
|
event.preventDefault();
|
|
input.setSelectionRange(input.selectionEnd, input.selectionEnd);
|
|
this.emit("after-suggest");
|
|
return;
|
|
} else if (this.popup && this.popup.isOpen) {
|
|
event.preventDefault();
|
|
this._cycleCSSSuggestion(event.shiftKey, true);
|
|
return;
|
|
}
|
|
}
|
|
|
|
this._apply(event, direction);
|
|
|
|
// Close the popup if open
|
|
if (this.popup && this.popup.isOpen) {
|
|
this.popup.hidePopup();
|
|
}
|
|
|
|
if (direction !== null && focusManager.focusedElement === input) {
|
|
// If the focused element wasn't changed by the done callback,
|
|
// move the focus as requested.
|
|
let next = moveFocus(this.doc.defaultView, direction);
|
|
|
|
// If the next node to be focused has been tagged as an editable
|
|
// node, trigger editing using the configured event
|
|
if (next && next.ownerDocument === this.doc && next._editable) {
|
|
let e = this.doc.createEvent("Event");
|
|
e.initEvent(next._trigger, true, true);
|
|
next.dispatchEvent(e);
|
|
}
|
|
}
|
|
|
|
this._clear();
|
|
} else if (event.keyCode === Ci.nsIDOMKeyEvent.DOM_VK_ESCAPE) {
|
|
// Cancel and blur ourselves.
|
|
// Now we don't want to suggest anything as we are moving out.
|
|
this._preventSuggestions = true;
|
|
// Close the popup if open
|
|
if (this.popup && this.popup.isOpen) {
|
|
this.popup.hidePopup();
|
|
}
|
|
prevent = true;
|
|
this.cancelled = true;
|
|
this._apply();
|
|
this._clear();
|
|
event.stopPropagation();
|
|
} else if (event.keyCode === Ci.nsIDOMKeyEvent.DOM_VK_SPACE) {
|
|
// No need for leading spaces here. This is particularly
|
|
// noticable when adding a property: it's very natural to type
|
|
// <name>: (which advances to the next property) then spacebar.
|
|
prevent = !this.input.value;
|
|
}
|
|
|
|
if (prevent) {
|
|
event.preventDefault();
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Handle the input field's keyup event.
|
|
*/
|
|
_onKeyup: function() {
|
|
this._applied = false;
|
|
},
|
|
|
|
/**
|
|
* Handle changes to the input text.
|
|
*/
|
|
_onInput: function() {
|
|
// Validate the entered value.
|
|
this._doValidation();
|
|
|
|
// Update size if we're autosizing.
|
|
if (this._measurement) {
|
|
this._updateSize();
|
|
}
|
|
|
|
// Call the user's change handler if available.
|
|
if (this.change) {
|
|
this.change(this.currentInputValue);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Stop propagation on the provided event
|
|
*/
|
|
_stopEventPropagation: function(e) {
|
|
e.stopPropagation();
|
|
},
|
|
|
|
/**
|
|
* Fire validation callback with current input
|
|
*/
|
|
_doValidation: function() {
|
|
if (this.validate && this.input) {
|
|
this.validate(this.input.value);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Handles displaying suggestions based on the current input.
|
|
*
|
|
* @param {Boolean} noAutoInsert
|
|
* true if you don't want to automatically insert the first suggestion
|
|
*/
|
|
_maybeSuggestCompletion: function(noAutoInsert) {
|
|
// Input can be null in cases when you intantaneously switch out of it.
|
|
if (!this.input) {
|
|
return;
|
|
}
|
|
let preTimeoutQuery = this.input.value;
|
|
// Since we are calling this method from a keypress event handler, the
|
|
// |input.value| does not include currently typed character. Thus we perform
|
|
// this method async.
|
|
this.doc.defaultView.setTimeout(() => {
|
|
if (this._preventSuggestions) {
|
|
this._preventSuggestions = false;
|
|
return;
|
|
}
|
|
if (this.contentType == CONTENT_TYPES.PLAIN_TEXT) {
|
|
return;
|
|
}
|
|
if (!this.input) {
|
|
return;
|
|
}
|
|
let input = this.input;
|
|
// The length of input.value should be increased by 1
|
|
if (input.value.length - preTimeoutQuery.length > 1) {
|
|
return;
|
|
}
|
|
let query = input.value.slice(0, input.selectionStart);
|
|
let startCheckQuery = query;
|
|
if (query == null) {
|
|
return;
|
|
}
|
|
// If nothing is selected and there is a non-space character after the
|
|
// cursor, do not autocomplete.
|
|
if (input.selectionStart == input.selectionEnd &&
|
|
input.selectionStart < input.value.length &&
|
|
input.value.slice(input.selectionStart)[0] != " ") {
|
|
// This emit is mainly to make the test flow simpler.
|
|
this.emit("after-suggest", "nothing to autocomplete");
|
|
return;
|
|
}
|
|
let list = [];
|
|
if (this.contentType == CONTENT_TYPES.CSS_PROPERTY) {
|
|
list = CSSPropertyList;
|
|
} else if (this.contentType == CONTENT_TYPES.CSS_VALUE) {
|
|
// Get the last query to be completed before the caret.
|
|
let match = /([^\s,.\/]+$)/.exec(query);
|
|
if (match) {
|
|
startCheckQuery = match[0];
|
|
} else {
|
|
startCheckQuery = "";
|
|
}
|
|
|
|
list =
|
|
["!important",
|
|
...domUtils.getCSSValuesForProperty(this.property.name)];
|
|
|
|
if (query == "") {
|
|
// Do not suggest '!important' without any manually typed character.
|
|
list.splice(0, 1);
|
|
}
|
|
} else if (this.contentType == CONTENT_TYPES.CSS_MIXED &&
|
|
/^\s*style\s*=/.test(query)) {
|
|
// Detecting if cursor is at property or value;
|
|
let match = query.match(/([:;"'=]?)\s*([^"';:=]+)?$/);
|
|
if (match && match.length >= 2) {
|
|
if (match[1] == ":") { // We are in CSS value completion
|
|
let propertyName =
|
|
query.match(/[;"'=]\s*([^"';:= ]+)\s*:\s*[^"';:=]*$/)[1];
|
|
list =
|
|
["!important;",
|
|
...domUtils.getCSSValuesForProperty(propertyName)];
|
|
let matchLastQuery = /([^\s,.\/]+$)/.exec(match[2] || "");
|
|
if (matchLastQuery) {
|
|
startCheckQuery = matchLastQuery[0];
|
|
} else {
|
|
startCheckQuery = "";
|
|
}
|
|
if (!match[2]) {
|
|
// Don't suggest '!important' without any manually typed character
|
|
list.splice(0, 1);
|
|
}
|
|
} else if (match[1]) { // We are in CSS property name completion
|
|
list = CSSPropertyList;
|
|
startCheckQuery = match[2];
|
|
}
|
|
if (startCheckQuery == null) {
|
|
// This emit is mainly to make the test flow simpler.
|
|
this.emit("after-suggest", "nothing to autocomplete");
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
if (!noAutoInsert) {
|
|
list.some(item => {
|
|
if (startCheckQuery != null && item.startsWith(startCheckQuery)) {
|
|
input.value = query + item.slice(startCheckQuery.length) +
|
|
input.value.slice(query.length);
|
|
input.setSelectionRange(query.length, query.length + item.length -
|
|
startCheckQuery.length);
|
|
this._updateSize();
|
|
return true;
|
|
}
|
|
});
|
|
}
|
|
|
|
if (!this.popup) {
|
|
// This emit is mainly to make the test flow simpler.
|
|
this.emit("after-suggest", "no popup");
|
|
return;
|
|
}
|
|
let finalList = [];
|
|
let length = list.length;
|
|
for (let i = 0, count = 0; i < length && count < MAX_POPUP_ENTRIES; i++) {
|
|
if (startCheckQuery != null && list[i].startsWith(startCheckQuery)) {
|
|
count++;
|
|
finalList.push({
|
|
preLabel: startCheckQuery,
|
|
label: list[i]
|
|
});
|
|
} else if (count > 0) {
|
|
// Since count was incremented, we had already crossed the entries
|
|
// which would have started with query, assuming that list is sorted.
|
|
break;
|
|
} else if (startCheckQuery != null && list[i][0] > startCheckQuery[0]) {
|
|
// We have crossed all possible matches alphabetically.
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (finalList.length > 1) {
|
|
// Calculate the offset for the popup to be opened.
|
|
let x = (this.input.selectionStart - startCheckQuery.length) *
|
|
this.inputCharWidth;
|
|
this.popup.setItems(finalList);
|
|
this.popup.openPopup(this.input, x);
|
|
if (noAutoInsert) {
|
|
this.popup.selectedIndex = -1;
|
|
}
|
|
} else {
|
|
this.popup.hidePopup();
|
|
}
|
|
// This emit is mainly for the purpose of making the test flow simpler.
|
|
this.emit("after-suggest");
|
|
this._doValidation();
|
|
}, 0);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Copy text-related styles from one element to another.
|
|
*/
|
|
function copyTextStyles(from, to) {
|
|
let win = from.ownerDocument.defaultView;
|
|
let style = win.getComputedStyle(from);
|
|
to.style.fontFamily = style.getPropertyCSSValue("font-family").cssText;
|
|
to.style.fontSize = style.getPropertyCSSValue("font-size").cssText;
|
|
to.style.fontWeight = style.getPropertyCSSValue("font-weight").cssText;
|
|
to.style.fontStyle = style.getPropertyCSSValue("font-style").cssText;
|
|
}
|
|
|
|
/**
|
|
* Trigger a focus change similar to pressing tab/shift-tab.
|
|
*/
|
|
function moveFocus(win, direction) {
|
|
return focusManager.moveFocus(win, null, direction, 0);
|
|
}
|
|
|
|
XPCOMUtils.defineLazyGetter(this, "focusManager", function() {
|
|
return Services.focus;
|
|
});
|
|
|
|
XPCOMUtils.defineLazyGetter(this, "CSSPropertyList", function() {
|
|
return domUtils.getCSSPropertyNames(domUtils.INCLUDE_ALIASES).sort();
|
|
});
|
|
|
|
XPCOMUtils.defineLazyGetter(this, "domUtils", function() {
|
|
return Cc["@mozilla.org/inspector/dom-utils;1"].getService(Ci.inIDOMUtils);
|
|
});
|