forked from mirrors/gecko-dev
f6db0ee557
# ignore-this-changeset Differential Revision: https://phabricator.services.mozilla.com/D35884 --HG-- extra : source : 60e4496cf9699dc59f2f4738cb60f87cbdb01e67
97 lines
2.4 KiB
JavaScript
97 lines
2.4 KiB
JavaScript
/* 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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"use strict";
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/**
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* The source editor exposes XUL commands that can be used when embedded in a XUL
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* document. This controller drives the availability and behavior of the commands. When
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* the editor input field is focused, this controller will update the matching menu item
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* entries found in application menus or context menus.
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*/
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/**
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* Returns a controller object that can be used for editor-specific commands:
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* - find
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* - find again
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* - go to line
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* - undo
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* - redo
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* - delete
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* - select all
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*/
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function createController(ed) {
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return {
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supportsCommand: function(cmd) {
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switch (cmd) {
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case "cmd_find":
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case "cmd_findAgain":
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case "cmd_gotoLine":
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case "cmd_undo":
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case "cmd_redo":
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case "cmd_delete":
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case "cmd_selectAll":
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return true;
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}
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return false;
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},
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isCommandEnabled: function(cmd) {
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const cm = ed.codeMirror;
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switch (cmd) {
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case "cmd_find":
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case "cmd_gotoLine":
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case "cmd_selectAll":
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return true;
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case "cmd_findAgain":
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return cm.state.search != null && cm.state.search.query != null;
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case "cmd_undo":
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return ed.canUndo();
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case "cmd_redo":
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return ed.canRedo();
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case "cmd_delete":
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return ed.somethingSelected();
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}
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return false;
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},
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doCommand: function(cmd) {
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const cm = ed.codeMirror;
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const map = {
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cmd_selectAll: "selectAll",
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cmd_find: "find",
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cmd_undo: "undo",
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cmd_redo: "redo",
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cmd_delete: "delCharAfter",
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cmd_findAgain: "findNext",
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};
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if (map[cmd]) {
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cm.execCommand(map[cmd]);
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return;
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}
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if (cmd == "cmd_gotoLine") {
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ed.jumpToLine();
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}
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},
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onEvent: function() {},
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};
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}
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/**
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* Create and insert a commands controller for the provided SourceEditor instance.
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*/
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function insertCommandsController(sourceEditor) {
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const input = sourceEditor.codeMirror.getInputField();
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const controller = createController(sourceEditor);
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input.controllers.insertControllerAt(0, controller);
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}
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module.exports = { insertCommandsController };
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