mirror of https://github.com/microsoft/vscode.git
117 lines
3.1 KiB
TypeScript
117 lines
3.1 KiB
TypeScript
/*---------------------------------------------------------------------------------------------
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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import { getSettings } from './settings';
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import { postCommand, postMessage } from './messaging';
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import { onceDocumentLoaded } from './events';
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import { getEditorLineNumberForPageOffset, scrollToRevealSourceLine } from './scroll-sync';
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import { ActiveLineMarker } from './activeLineMarker';
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import throttle = require('lodash.throttle');
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var scrollDisabled = true;
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const marker = new ActiveLineMarker();
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const settings = getSettings();
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onceDocumentLoaded(() => {
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if (settings.scrollPreviewWithEditor) {
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setTimeout(() => {
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const initialLine = +settings.line;
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if (!isNaN(initialLine)) {
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scrollDisabled = true;
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scrollToRevealSourceLine(initialLine);
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}
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}, 0);
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}
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});
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const onUpdateView = (() => {
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const doScroll = throttle((line: number) => {
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scrollDisabled = true;
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scrollToRevealSourceLine(line);
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}, 50);
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return (line: number, settings: any) => {
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if (!isNaN(line)) {
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settings.line = line;
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doScroll(line);
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}
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};
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})();
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window.addEventListener('resize', () => {
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scrollDisabled = true;
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}, true);
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window.addEventListener('message', event => {
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if (event.data.source !== settings.source) {
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return;
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}
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switch (event.data.type) {
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case 'onDidChangeTextEditorSelection':
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marker.onDidChangeTextEditorSelection(event.data.line);
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break;
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case 'updateView':
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onUpdateView(event.data.line, settings);
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break;
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}
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}, false);
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document.addEventListener('dblclick', event => {
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if (!settings.doubleClickToSwitchToEditor) {
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return;
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}
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// Ignore clicks on links
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for (let node = event.target as HTMLElement; node; node = node.parentNode as HTMLElement) {
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if (node.tagName === 'A') {
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return;
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}
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}
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const offset = event.pageY;
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const line = getEditorLineNumberForPageOffset(offset);
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if (typeof line === 'number' && !isNaN(line)) {
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postMessage('didClick', { line });
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}
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});
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document.addEventListener('click', event => {
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if (!event) {
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return;
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}
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let node: any = event.target;
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while (node) {
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if (node.tagName && node.tagName === 'A' && node.href) {
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if (node.getAttribute('href').startsWith('#')) {
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break;
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}
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if (node.href.startsWith('file://') || node.href.startsWith('vscode-resource:')) {
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const [path, fragment] = node.href.replace(/^(file:\/\/|vscode-resource:)/i, '').split('#');
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postCommand('_markdown.openDocumentLink', [{ path, fragment }]);
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event.preventDefault();
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event.stopPropagation();
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break;
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}
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break;
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}
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node = node.parentNode;
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}
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}, true);
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if (settings.scrollEditorWithPreview) {
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window.addEventListener('scroll', throttle(() => {
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if (scrollDisabled) {
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scrollDisabled = false;
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} else {
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const line = getEditorLineNumberForPageOffset(window.scrollY);
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if (typeof line === 'number' && !isNaN(line)) {
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postMessage('revealLine', { line });
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}
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}
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}, 50));
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} |