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DefaultToolScrollOption.js
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DefaultToolScrollOption.js
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/*jslint vars: true, plusplus: true, devel: true, nomen: true, regexp: true, indent: 4, maxerr: 50 */
/*global define, $, brackets, window */
define(function (require, exports, module) {
"use strict";
const EditorManager = brackets.getModule("editor/EditorManager");
const MainViewManager = brackets.getModule("view/MainViewManager");
const ModifierKeys = require("ModifierKeys");
const CrownConnection = require("CrownConnection");
const TOOL_OPTION_NAME_REGEX = /^Scroll/;
exports.shouldBeUsed = function (crownMsg) {
return crownMsg.task_options.current_tool_option.match(TOOL_OPTION_NAME_REGEX);
};
exports.update = function (crownMsg) {
const editor = EditorManager.getActiveEditor();
if (!editor) return;
let editorToScroll = editor;
if ((crownMsg.task_options.current_tool_option.match(/Inactive$/) && !ModifierKeys.altKey) ||
(crownMsg.task_options.current_tool_option.match(/Active$/) && ModifierKeys.altKey)) {
const paneId = MainViewManager.FIRST_PANE === editor._paneId ? MainViewManager.SECOND_PANE: MainViewManager.FIRST_PANE;
editorToScroll = MainViewManager._getPane(paneId)._currentView;
}
const currentScroll = editorToScroll.getScrollPos();
const scrollDelta = !crownMsg.delta ? 0:
crownMsg.delta > 0 ?
Math.max( 5, crownMsg.delta) * (ModifierKeys.ctrlKey ? 2: 1.25):
Math.min(-5, crownMsg.delta) * (ModifierKeys.ctrlKey ? 2: 1.25);
let dirH = !!crownMsg.task_options.current_tool_option.match(/^ScrollH/);
dirH = (dirH && !ModifierKeys.shiftKey) || (!dirH && ModifierKeys.shiftKey);
editorToScroll.setScrollPos(
!dirH ? currentScroll.x: Math.max(0, Math.round(currentScroll.x + scrollDelta)),
!dirH ? Math.max(0, Math.round(currentScroll.y + scrollDelta)): currentScroll.y
);
};
});